Re: datomic question
Thanks very much Michael and Jonas.
On Monday, 4 March 2013 07:20:24 UTC, Jonas wrote:
Hi
You can use the tempid (
http://docs.datomic.com/clojure/index.html#datomic.api/tempid) function
to generate new temporary ids.
Jonas
On Monday, March 4, 2013 8:50:56 AM UTC+2, edw...@kenworthy.info wrote:
Okay, I think I understand that.
Does that mean this code could never work as intended in a Clojure
program, only at the repl (which seems a bit of a limitation) or is there a
way to make it work as intended, generating a different id each time? Or is
the whole approach taken in this code flawed?
On Sunday, 3 March 2013 21:59:45 UTC, Michał Marczyk wrote:
#db/id ... is a tagged literal. It gets read in as an id object with
some integer inside. The way this happens is that the reader looks up
a data reader function associated with the symbol db/id in the map
held by the var *data-readers* and passes to it the result of parsing
the rest of the literal (a vector holding the keyword :db.part/db in
this case). Importantly, this function is not pure and the integer it
uses will be different on each invocation. (Given this form of the
#db/id literal; you can also specify a particular number yourself --
#db/id [:db.part/db some-number-here].)
In any case, once the reader reads in your code including some
particular id, the compiler will compile the result preserving the
particular values it sees, so it will embed code to construct *exactly
this* id in the compiled output. Thus you end up with a particular id
hardwired into the first version of your function.
With the second version, if you invoke it multiple times at the REPL,
you ask the reader for a new id at each invocation, so it works as you
expect. If instead you were to use it inside a function like so:
(defn foo []
(make-column-schema #db/id [:db.part/db] :results/subject
:db.type/string)),
then again the same id would be used for every (foo) call.
Cheers,
Michał
On 3 March 2013 21:58, edw...@kenworthy.info wrote:
So, I am studying a piece of code from the web. I've dissected most of
it
and am in the process of re-factoring it.
What I don't understand is why one version works and the other
doesn't.
So for both:
(ns gcse-results.core (:use [datomic.api :only [q db] :as d]) (:use
quil.core))
This doesn't work:
(defn make-column-schema [db-ident db-type]
{:db/id #db/id[:db.part/db]
:db/ident db-ident
:db/valueType db-type
:db/cardinality :db.cardinality/one
:db.install/_attribute :db.part/db})
Each call to:
(make-column-schema :results/subject :db.type/string)
The value of #db/id[:db.part/db] is the same.
And this works:
(defn make-column-schema [db-id db-ident db-type]
{:db/id db-id
:db/ident db-ident
:db/valueType db-type
:db/cardinality :db.cardinality/one
:db.install/_attribute :db.part/db})
Each call to: (make-column-schema #db/id[:db.part/db] :results/subject
:db.type/string)
The value of #db/id[:db.part/db] is the different, as expected.
Now I thought that I understood #db/id[:db.part/db] (call to a Java
constructor) but obviously my understanding is flawed as I would
expect both
of these functions to produce the same thing, but they don't so
there's
obviously some gap in my understanding.
Help?
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Re: Wrong clojure version depending on lein dependencies
Excellent - thanks for letting me know - Frank. On Mar 3, 2013, at 11:37 PM, Tassilo Horn t...@gnu.org wrote: Frank Siebenlist frank.siebenl...@gmail.com writes: Hi Frank, clj-ns-browser 1.3.1 is released and addresses this issue by upgrading the project's dependencies to seesaw 1.4.3. With 1.3.1 I could remove all the :excusions again and it still picked the right clojure version (1.5.0). Thanks, Tassilo -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
On Sat, Mar 02, 2013 at 17:42 -0600, Nelson Morris wrote: Or is this a bug in leiningen's dependency resolution? Unfortunately it's behaviour defined by maven. In order to be compatible lein has to do the same thing. I've written up a few things about version ranges at http://nelsonmorris.net/2012/07/31/do-not-use-version-ranges-in-project-clj.html and in some other mailing list threads. I would like to note that there is /nothing/ wrong with version ranges in general and it would be very good if the Clojure tooling would actually support proper and expressive dependency definitions. Unfortunately it does not, which seems to be a bug in maven or in the fact that Clojure relies on this. It is also ridiculous that RC or alpha/beta releases are treated in the same way as actual ones. Maybe it would be good to think about how this unfortunate behaviour can be fixed, rather than relying on having to hardcode very specific dependencies. (as in dependency on X.Y.Z even though the library in question provides a stable API in all X.* releases) I think this would have the following positive effects: * Projects don't have to constantly monitor new releases of new libraries and bug authors of libraries they use to do the same * Library authors would be more concerned about providing a stable interface for all releases that fall into a certain version span * Packaging software and tools by downstream distributions (e.g. Debian, Ubuntu, …), so that Clojure software can be easily used by people that are /not/ familiar with Clojure can still easily use software written in it, would be much easier. * Deployment would be more predictable as people know that they target only stable releases. I know that I am coming from a different culture than the Let's package everything in a jar and it is good, but I believe that there is merit in stabilizing APIs and in relying on libraries that honour this. I am also aware that my experience with Python's batteries included, Haskell's platform, C's SONAMEs or Debian's packaging system might have spoiled me, but still ... It is up to a community to fix things that are broken in their toolset and Do not use version ranges is IMHO the wrong answer. -- Wolodja babi...@gmail.com 4096R/CAF14EFC 081C B7CD FF04 2BA9 94EA 36B2 8B7F 7D30 CAF1 4EFC signature.asc Description: Digital signature
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
Hi, Am Montag, 4. März 2013 13:00:31 UTC+1 schrieb Wolodja Wentland: It is up to a community to fix things that are broken in their toolset and Do not use version ranges is IMHO the wrong answer. Huge +1. I was about to blog in favour of version ranges. As I'm a toolmaker myself, I wanted to first spike a proof-of-concept of a saner dependency resolution library (it can't be thaaat hard, right? kind of run-up-a-wall-soon project). However now I will blog anyway and get to code later on. Having detailed dependency reports with sane information as they were added lately to leiningen and gradle are a first step. A sane resolution strategy is the next. (Funnily ivy already seems to provide thathttp://www.docjar.com/docs/api/org/apache/ivy/plugins/conflict/LatestCompatibleConflictManager.html ...) Meikel -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
On Mar 4, 2013, at 7:36 AM, Meikel Brandmeyer (kotarak) wrote: Hi, Am Montag, 4. März 2013 13:00:31 UTC+1 schrieb Wolodja Wentland: It is up to a community to fix things that are broken in their toolset and Do not use version ranges is IMHO the wrong answer. Huge +1. I was about to blog in favour of version ranges. As I'm a toolmaker myself, I wanted to first spike a proof-of-concept of a saner dependency resolution library (it can't be thaaat hard, right? kind of run-up-a-wall-soon project). However now I will blog anyway and get to code later on. Having detailed dependency reports with sane information as they were added lately to leiningen and gradle are a first step. A sane resolution strategy is the next. (Funnily ivy already seems to provide that...) FWIW, contributors to Pomegranate and Leiningen are working on general solutions to this sort of madness, but the use of version ranges will always be largely unwarranted, especially in published libraries. There are a lot of reasons for this, but #1 for me is that few people understand the implications of version ranges, either downstream of their published libraries or when they are consuming a library and place a range around its resolution. If you do, and your team does, then by all means, go hog-wild with version ranges in your in-house libraries and applications, where you can control versioning schemes, correspondences between APIs and versions, and so on. However, none of those standards apply in the commons, so ranges like the one that provoked the problem in this case ([org.clojure/clojure [1.2,1.5)]) are counterproductive (i.e. there is no reason to prospectively exclude an unreleased version unless you're certain that API changes will break the library in question). Granted, the fallback resolution of the Leiningen/Pomegranate/Aether triad fall down badly, which exacerbates the problem; again, that's being worked on, but the solution still won't help in this situation where a library blocks out e.g. 1.5.0, but a downstream user/library explicitly specifies 1.5.0. I feel like I'm light-years OT, so I won't wade into the Ivy vs. Aether morass; suffice it to say, if there were a silver bullet — and there's not — Ivy wouldn't be it. Cheers, - Chas -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Wrong clojure version depending on lein dependencies
Meikel Brandmeyer (kotarak) m...@kotka.de writes: Hi, Am Montag, 4. März 2013 13:00:31 UTC+1 schrieb Wolodja Wentland: It is up to a community to fix things that are broken in their toolset and Do not use version ranges is IMHO the wrong answer. Huge +1. Fixing version ranges seems like a good idea (e.g. I just ended up with commons-logging on the classpath, I think due to clojure 1.5.0 being released). Maven's answer to these issues seems to be use dependencyManagement [1]. I still think the valid use cases of version ranges are quite limited though. When does using version ranges make sense? Or thinking from a lein perspective, what features does lein need to provide for specifying dependency versions, and are version ranges the best way of expressing these? Hugo [1] http://www.sonatype.com/books/mvnref-book/reference/pom-relationships-sect-project-dependencies.html#pom-relationships-sect-version-ranges -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
Hi Chas, Am Montag, 4. März 2013 14:33:29 UTC+1 schrieb Chas Emerick: There are a lot of reasons for this, but #1 for me is that few people understand the implications of version ranges, either downstream of their published libraries or when they are consuming a library and place a range around its resolution. If you do, and your team does, then by all means, go hog-wild with version ranges in your in-house libraries and applications, where you can control versioning schemes, correspondences between APIs and versions, and so on. However, none of those standards apply in the commons, so ranges like the one that provoked the problem in this case ([org.clojure/clojure [1.2,1.5)]) are counterproductive (i.e. there is no reason to prospectively exclude an unreleased version unless you're certain that API changes will break the library in question). Granted, the fallback resolution of the Leiningen/Pomegranate/Aether triad fall down badly, which exacerbates the problem; again, that's being worked on, but the solution still won't help in this situation where a library blocks out e.g. 1.5.0, but a downstream user/library explicitly specifies 1.5.0. Ok. So instead of the range I specify [org.clojure/clojure 1.2]. What does that mean? Now I either excluded *all* clojure versions not= 1.2 or the version number doesn't mean anything. Then we should get rid of it completely and just specify the dependency without it. (It seems there maven poms which do exactly that? o.O) The range [1.2;1.5) means that the library was tested with 1.2 up to 1.4 and - believing in semver - their patchlevel children. 1.5 (was at that time) not released, yet. So compatibility couldn't be guaranteed. For me this is a reasonable approach. Sure. It might work with 1.5. Everyone is free to place an exclusion to help the system resolve the conflict. But you must be aware you might run into trouble. If I follow your approach I must provide 4 branches of a library which basically consists of a single function: one branch per supported clojure version (so far). This is ridiculous. Or - as I said - we let all hope go and don't specify the version, only the dependency on the library itself. I see we have a different basic idea of what a version range should mean. For me it's a promise that my library will work with the versions specified. If one wants to use a version outside the range, that *might* be ok, but one should be aware and pointed to that fact and the decision to do so should be explicit! I'm probably just a pessimist, while you are an optimist. Meikel -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
Hi Wolodja, It's useful to note that you can use the currently preferred fixed version specifiers and still have your dependencies and the top-level project depend on multiple versions of a library (the common case is multiple versions of Clojure specified as dependencies). Also, you can specify a baseline version requirement in project.clj and then still specify tests for your library including alternative version sets; that makes explicit what has been tested and what simply might work. Apart from noting the above, I have to say I simply don't see the benefit of version ranges. Here's a bunch of comments on the list of positive effects: On 4 March 2013 13:00, Wolodja Wentland babi...@gmail.com wrote: I think this would have the following positive effects: * Projects don't have to constantly monitor new releases of new libraries and bug authors of libraries they use to do the same That is true today in the sense that if your code works now, it will continue to work regardless of which libraries release new versions, as long as you don't change your :dependencies in project.clj or the equivalent for your build tool. On the other hand, if you care about securing your project, pulling in the latest bugfixes etc., you will need to monitor new releases anyway, regardless of the version numbering scheme used by their maintainers. * Library authors would be more concerned about providing a stable interface for all releases that fall into a certain version span Those library authors who care about this already act in this way. * Packaging software and tools by downstream distributions (e.g. Debian, Ubuntu, …), so that Clojure software can be easily used by people that are /not/ familiar with Clojure can still easily use software written in it, would be much easier. Are people actually using package managers for Java libraries and applications much, beyond a small number of special cases like LibreOffice (which therefore can totally be packaged überjar-like)? * Deployment would be more predictable as people know that they target only stable releases. In the absence of version ranges, that seems to be true today...? I know that I am coming from a different culture than the Let's package everything in a jar and it is good, but I believe that there is merit in stabilizing APIs and in relying on libraries that honour this. I am also aware that my experience with Python's batteries included, Haskell's platform, C's SONAMEs or Debian's packaging system might have spoiled me, but still ... Here's a relevant link to a post on Yesod's blog from April 2012 (one of top Haskell web frameworks): http://www.yesodweb.com/blog/2012/04/cabal-meta And here's an interesting quote (again, this is from Yesod's own blog): Even with all these tools, one day I found myself completely incapable of installng Yesod from source. I know Cabal is improving and it actually has a shot at solving some truly interesting problems with dependency handling, but right now I find it surprising that one could feel spoiled by using it to the point of feeling discomfort in Clojure land. (We actually have it simpler for example in that we don't have to deal much with assumptions baked into previously compiled artefacts; I'm not knocking Cabal here in any way, just noting that it's not all that rosy.) It is up to a community to fix things that are broken in their toolset and Do not use version ranges is IMHO the wrong answer. There's value in using Maven simply for the easy interop with the vast Java ecosystem behind it. Maven's (Aether's?) handling of version ranges appears to be counterintuitive. I'm not sure to which degree this can be fixed on the Leiningen / Pomegranate side, but if we do expend effort fixing that, what can we expect to get in return? Cheers, Michał -- Wolodja babi...@gmail.com 4096R/CAF14EFC 081C B7CD FF04 2BA9 94EA 36B2 8B7F 7D30 CAF1 4EFC -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
On Mon, Mar 04, 2013 at 08:33 -0500, Chas Emerick wrote: FWIW, contributors to Pomegranate and Leiningen are working on general solutions to this sort of madness, but the use of version ranges will always be largely unwarranted, especially in published libraries. There are a lot of reasons for this, but #1 for me is that few people understand the implications of version ranges, either downstream of their published libraries or when they are consuming a library and place a range around its resolution. I can not really agree with this as there are also a lot of authors of libraries who do take versioning serious and who wouldn't, for example, break API compatibility in a minor version. (e.g. between X.Y.Z and X.Y.Z+1 or even X.Y+1). It would be wonderful if I, as a consumer or that library, could simply state that my code works with all versions in the X.* version range (but for example that it is not expected to work with X+1.*). The specification of dependencies has to be done on a per-library basis and will, naturally, take the versioning scheme of the specific library into account. If I know that I can trust the author of the library to /not/ break API compatibility in future minor releases I want to express that. I might have even tested my code against a specific version range and want to communicate that. I think that the ability to specify ranges like this would actually increase pressure to adhere to reasonable versioning schemes and, ultimately, even better code in the community. (Simply because downstream consumers would complain bitterly about API changes in minor releases that break their code). However, none of those standards apply in the commons, so ranges like the one that provoked the problem in this case ([org.clojure/clojure [1.2,1.5)]) are counterproductive (i.e. there is no reason to prospectively exclude an unreleased version unless you're certain that API changes will break the library in question). I agree completely that it does not make sense to proactively /exclude/ a specific unreleased version from being used, but it also doesn't make sense to depend on *one* very specific version. It is also ridiculous that there is no differentiation between release candidates and proper releases, but that is, yet, another can of worms. Things that most commonly have to be expressed are. for example, the following: * I need at least version 1.4 to work correctly and I know that everything older than 2.0 won't work * My library wraps the 3.* range of releases of the Java library foo-to-be-wrapped and I have enough test cases to be sure of that … I would love if I wouldn't have to start every week with running lein outdated and then guessing which of the libraries can be updated without breaking something. I want my code to simply run on the newest version of the libraries that I (and their upstream) support. If one of those versions breaks my code that would be bug that has to be fixed. I am well aware that the current toolset is not ideal for these situations and that this is also a bit of a culture clash, but there is nothing inherently wrong with being able to specify versions in a more expressive way. The current toolset might not be ideal, but that is a problem of the toolset and the way software is being distributed, not with the scheme itself. -- Wolodja babi...@gmail.com 4096R/CAF14EFC 081C B7CD FF04 2BA9 94EA 36B2 8B7F 7D30 CAF1 4EFC signature.asc Description: Digital signature
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
On Mon, Mar 04, 2013 at 06:01 -0800, Meikel Brandmeyer (kotarak) wrote: Ok. So instead of the range I specify [org.clojure/clojure 1.2]. What does that mean? Now I either excluded *all* clojure versions not= 1.2 or the version number doesn't mean anything. Then we should get rid of it completely and just specify the dependency without it. (It seems there maven poms which do exactly that? o.O) The range [1.2;1.5) means that the library was tested with 1.2 up to 1.4 and - believing in semver - their patchlevel children. 1.5 (was at that time) not released, yet. So compatibility couldn't be guaranteed. For me this is a reasonable approach. Sure. It might work with 1.5. Everyone is free to place an exclusion to help the system resolve the conflict. But you must be aware you might run into trouble. If I follow your approach I must provide 4 branches of a library which basically consists of a single function: one branch per supported clojure version (so far). This is ridiculous. Or - as I said - we let all hope go and don't specify the version, only the dependency on the library itself. I see we have a different basic idea of what a version range should mean. For me it's a promise that my library will work with the versions specified. If one wants to use a version outside the range, that *might* be ok, but one should be aware and pointed to that fact and the decision to do so should be explicit! I'm probably just a pessimist, while you are an optimist. Exactly! Thank you for stating this so clearly. -- Wolodja babi...@gmail.com 4096R/CAF14EFC 081C B7CD FF04 2BA9 94EA 36B2 8B7F 7D30 CAF1 4EFC signature.asc Description: Digital signature
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
On 4 March 2013 15:01, Meikel Brandmeyer (kotarak) m...@kotka.de wrote: The range [1.2;1.5) means that the library was tested with 1.2 up to 1.4 and - believing in semver - their patchlevel children. 1.5 (was at that time) not released, yet. So compatibility couldn't be guaranteed. For me this is a reasonable approach. Sure. It might work with 1.5. Everyone is free to place an exclusion to help the system resolve the conflict. But you must be aware you might run into trouble. Better yet, you can specify a test matrix for your library. Of course there's a bit of a combinatorial problem here, which however is not solved by the version ranges: in fact to be thorough you should probably run your tests with any valid selection of versions for the dependencies -- imagine if you have ten ranges including two actually released versions each specified in your project.clj... But even overlooking that, using a baseline version and explicit tests (or, failing that, a line in the README) to document what's the minimum requirement and what has been tested seems sane to me *and* it allows us to reuse the Maven infrastructure. What's there to be gained by insisting on an improved version range handling? Also, what impact would version ranges have on repeatability of builds? Cheers, M. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
On Monday, March 4, 2013 3:01:13 PM UTC+1, Meikel Brandmeyer (kotarak) wrote: The range [1.2;1.5) means that the library was tested with 1.2 up to 1.4 and - believing in semver - their patchlevel children. 1.5 (was at that time) not released, yet. So compatibility couldn't be guaranteed. For me this is a reasonable approach. Sure. It might work with 1.5. Everyone is free to place an exclusion to help the system resolve the conflict. But you must be aware you might run into trouble. This resembles Java's checked exceptions: the user should be warned; in reality it just causes frustrations. Libraries break even when they are within the declared range: nobody can predict all the interactions. On the other hand, most of the time an upgrade wouldn't hurt, but is prevented by a defensive version range, and this actually breaks down the whole build due to a lower bound by another library. If a feature ends up having to be defused more often than it provides value, then it's not a feature. I second Chas' preference of innocent until proven guilty or, as you put it, optimism. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: byte-array woes
Hi Frank, I've added a patch to CLJ-766 with a potential fix. Also, Andy F. kindly pointed out that interested parties should vote on that issue to help increase its visibility... Add your 2 cents here (provided you've a CA): http://dev.clojure.org/jira/browse/CLJ-766 Best, K. -- Karsten Schmidt http://postspectacular.com | http://toxiclibs.org | http://toxi.co.uk On 3 March 2013 00:01, Frank Siebenlist frank.siebenl...@gmail.com wrote: I just ran into that issue while I was constructing byte-arrays for secure-hash test cases. Ended-up using (byte-array (vector-of :byte 1 2 3 4)) to avoid writing the (byte-array [(byte 1)(byte 2)(byte 3)(byte 4)]). Transparently adding valid byte-number values to a byte-array makes sense and would be helpful. Thanks, FrankS. On Mar 2, 2013, at 2:49 PM, Karsten Schmidt i...@toxi.co.uk wrote: Thanks, Marko! I'd count this as a sort of bug though... at least in terms of consistency, since it breaks expected behaviour as established by other common array c'tor functions: (int-array [1 2 3]) = ok (long-array [1 2 3]) = ok (float-array [1 2 3]) = ok (double-array [1 2 3]) = ok (byte-array [1 2 3]) = fail (short-array [1 2 3]) = fail (char-array [1 2 3]) = fail, but bearable since you'd use shorts anyway if you specify chars as numbers I had a look at clojure.lang.Numbers.java and found a fix for both bytes shorts: Whereas all the working array c'tors functions are using this pattern: array[i] = ((Number)s.first()).intValue(); ... the byte-array short-array versions attempt to cast the sequence items directly, i.e. array[i] = (Byte)s.first(); Changing this to the first pattern (via Number) fixes the issue and I'll submit a patch for this... Hth! K. -- Karsten Schmidt http://postspectacular.com | http://toxiclibs.org | http://toxi.co.uk On 2 March 2013 18:43, Marko Topolnik marko.topol...@gmail.com wrote: On Saturday, March 2, 2013 6:22:51 PM UTC+1, Karsten Schmidt wrote: Is that a bug or can someone please explain why bytes seem to require special treatment in Clojure? Calling it a bug wouldn't be entirely fair since it's a missing feature. I'd say this is filable as an enhancement request. -Marko -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
On Mon, Mar 04, 2013 at 15:04 +0100, Michał Marczyk wrote: On the other hand, if you care about securing your project, pulling in the latest bugfixes etc., you will need to monitor new releases anyway, regardless of the version numbering scheme used by their maintainers. And then release a new version for every new release of one of my depedencies? * Library authors would be more concerned about providing a stable interface for all releases that fall into a certain version span Those library authors who care about this already act in this way. Exactly and I would like to take advantage of this. I also think that establishing reasonable versioning and using version ranges as the norm would increase the pressure to, well, adhere to the norm by making sure that one does not break backward compatibility in a minor release. * Packaging software and tools by downstream distributions (e.g. Debian, Ubuntu, …), so that Clojure software can be easily used by people that are /not/ familiar with Clojure can still easily use software written in it, would be much easier. Are people actually using package managers for Java libraries and applications much, beyond a small number of special cases like LibreOffice (which therefore can totally be packaged überjar-like)? Yes, a lot of people don't really care in which language a tool is written (nor should they) and simply want to install that software using their preferred packaging system. One reason for the need to not ship the same library all over again and in using version ranges is one of security. Imagine if a library is found to be buggy in version 1.2.3 and that a bugfix is available in 1.2.4. In order to take advantage of this one can either upgrade that single library on a system and /all other/ applications and libraries using this would be patched immediately or you could force every consumer to change their dependency on 1.2.3 to 1.2.4 and release a new version. * Deployment would be more predictable as people know that they target only stable releases. In the absence of version ranges, that seems to be true today...? Yes, it is. But then, the environment changes (see above), whereas some of your assumptions about it might not. To give an example: I could write code against the standard library that ships with Python 2.7. I would expect that my code runs with all releases in the 2.7.* version range and would like to express that. See, for example, http://www.python.org/dev/peps/pep-0426/#version-scheme for a relevant PEP in the Python community and I am sure you'll find many other examples for other languages. Here's a relevant link to a post on Yesod's blog from April 2012 (one of top Haskell web frameworks): http://www.yesodweb.com/blog/2012/04/cabal-meta And here's an interesting quote (again, this is from Yesod's own blog): Even with all these tools, one day I found myself completely incapable of installng Yesod from source. I know Cabal is improving and it actually has a shot at solving some truly interesting problems with dependency handling, but right now I find it surprising that one could feel spoiled by using it to the point of feeling discomfort in Clojure land. (We actually have it simpler for example in that we don't have to deal much with assumptions baked into previously compiled artefacts; I'm not knocking Cabal here in any way, just noting that it's not all that rosy.) Fair enough :) -- Wolodja babi...@gmail.com 4096R/CAF14EFC 081C B7CD FF04 2BA9 94EA 36B2 8B7F 7D30 CAF1 4EFC signature.asc Description: Digital signature
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
On Mon, Mar 4, 2013 at 2:01 PM, Meikel Brandmeyer (kotarak) m...@kotka.dewrote: Hi Chas, Am Montag, 4. März 2013 14:33:29 UTC+1 schrieb Chas Emerick: There are a lot of reasons for this, but #1 for me is that few people understand the implications of version ranges, either downstream of their published libraries or when they are consuming a library and place a range around its resolution. If you do, and your team does, then by all means, go hog-wild with version ranges in your in-house libraries and applications, where you can control versioning schemes, correspondences between APIs and versions, and so on. However, none of those standards apply in the commons, so ranges like the one that provoked the problem in this case ([org.clojure/clojure [1.2,1.5)]) are counterproductive (i.e. there is no reason to prospectively exclude an unreleased version unless you're certain that API changes will break the library in question). Granted, the fallback resolution of the Leiningen/Pomegranate/Aether triad fall down badly, which exacerbates the problem; again, that's being worked on, but the solution still won't help in this situation where a library blocks out e.g. 1.5.0, but a downstream user/library explicitly specifies 1.5.0. Ok. So instead of the range I specify [org.clojure/clojure 1.2]. What does that mean? Now I either excluded *all* clojure versions not= 1.2 or the version number doesn't mean anything. Then we should get rid of it completely and just specify the dependency without it. (It seems there maven poms which do exactly that? o.O) (Disclaimer - I'm no Maven expert) 1.2 in this case is a soft dependency on 1.2. This is probably what you want. http://docs.codehaus.org/display/MAVEN/Dependency+Mediation+and+Conflict+Resolution#DependencyMediationandConflictResolution-DependencyVersionRanges This differs from [1.2,1.5), which is a hard dependency of 1.2 = ver 1.5 I don't know the exact details, but a soft dependency basically means, that the library would like 1.2, but if something else ends up requiring 1.3 or something, then that will be ok. This way the top-level application can ultimately decide which versions are included. This seems to be the most flexible, and repeatable option. Version ranges aren't for communicating what versions of libraries you have tested against - that is best done out-of-band. If you include a version range, like the one above, you are saying that you want the software to fail to build if something ends up requiring 1.5. This probably isn't useful, as it will just lead to difficult to fix problems for library consumers. I guess the only time you might want a maximum version to be specified, is if that version exists, and is known to be incompatible with your library. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
On Mar 4, 2013, at 9:01 AM, Meikel Brandmeyer (kotarak) wrote: Hi Chas, Am Montag, 4. März 2013 14:33:29 UTC+1 schrieb Chas Emerick: There are a lot of reasons for this, but #1 for me is that few people understand the implications of version ranges, either downstream of their published libraries or when they are consuming a library and place a range around its resolution. If you do, and your team does, then by all means, go hog-wild with version ranges in your in-house libraries and applications, where you can control versioning schemes, correspondences between APIs and versions, and so on. However, none of those standards apply in the commons, so ranges like the one that provoked the problem in this case ([org.clojure/clojure [1.2,1.5)]) are counterproductive (i.e. there is no reason to prospectively exclude an unreleased version unless you're certain that API changes will break the library in question). Granted, the fallback resolution of the Leiningen/Pomegranate/Aether triad fall down badly, which exacerbates the problem; again, that's being worked on, but the solution still won't help in this situation where a library blocks out e.g. 1.5.0, but a downstream user/library explicitly specifies 1.5.0. Ok. So instead of the range I specify [org.clojure/clojure 1.2]. What does that mean? Now I either excluded *all* clojure versions not= 1.2 or the version number doesn't mean anything. Then we should get rid of it completely and just specify the dependency without it. (It seems there maven poms which do exactly that? o.O) The range [1.2;1.5) means that the library was tested with 1.2 up to 1.4 and - believing in semver - their patchlevel children. 1.5 (was at that time) not released, yet. So compatibility couldn't be guaranteed. For me this is a reasonable approach. Sure. It might work with 1.5. Everyone is free to place an exclusion to help the system resolve the conflict. But you must be aware you might run into trouble. If I follow your approach I must provide 4 branches of a library which basically consists of a single function: one branch per supported clojure version (so far). This is ridiculous. Or - as I said - we let all hope go and don't specify the version, only the dependency on the library itself. I see we have a different basic idea of what a version range should mean. For me it's a promise that my library will work with the versions specified. If one wants to use a version outside the range, that *might* be ok, but one should be aware and pointed to that fact and the decision to do so should be explicit! I'm probably just a pessimist, while you are an optimist. AFAICT, the vast majority of Leiningen users (same goes for Maven users as well) expect the dependency vector [org.clojure/clojure 1.2.0] to establish a lower bound, the equivalent of [1.2.0,). Further, people expect the maximum of all overlapping requirements to be taken (so transitive dependencies requiring e.g. 1.2.0, 1.3.0, and 1.4.0 would resolve to 1.4.0), and for the dependencies specified in the root of the tree (i.e. the current project.clj) to override everything else, so specifying 1.3.1 in the current project would be the equivalent of [1.3.1] (this is equivalent to having implicit dependencyManagement in Maven, for those that know/care what that means). That's just my personal observation, but others that have done work in this area seem to agree on the general outline. Further, it *should* be compatible with the existing Aether/Maven ecosystem that we're playing in; there, bare version numbers are purely advisory, so constraining them to set a lower bound is sane. We'll see what happens when such a dependency resolution scheme is tested against the current defaults. Re: what version numbers *should* mean, etc., at least when it comes to publicly-published libraries: I don't think it's a matter of optimism vs. pessimism. A minor point is that, if you release a library with a constraint of [1.2.0,1.5.0), then to get an updated version that has an updated constraint, users may (will inevitably) have to swallow API or semantic changes that are orthogonal to the notion of tested with. More importantly, users of libraries are always going to upgrade their dependencies faster than those dependencies' authors can qualify new releases against *their* dependencies. Indeed, given the way things work these days, projects constantly rely upon others' rarely-maintained work: people's interests and priorities shift, but if their libraries continue to work, then requiring everyone else to either wait for a new release (and for all intervening transitive dependencies to update accordingly) or manually override version ranges is counterproductive. Signal re: breakage caused by some version X of a library will always propagate faster (and probably more accurately) by users bumping into things than by a careful author
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
On Mon, Mar 04, 2013 at 14:42 +, David Powell wrote: 1.2 in this case is a soft dependency on 1.2. This is probably what you want. http://docs.codehaus.org/display/MAVEN/ Dependency+Mediation+and+Conflict+Resolution# DependencyMediationandConflictResolution-DependencyVersionRanges Then why declare a versioned dependency in the first place? -- Wolodja babi...@gmail.com 4096R/CAF14EFC 081C B7CD FF04 2BA9 94EA 36B2 8B7F 7D30 CAF1 4EFC signature.asc Description: Digital signature
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
On Monday, March 4, 2013 3:42:56 PM UTC+1, David Powell wrote: Version ranges aren't for communicating what versions of libraries you have tested against - that is best done out-of-band. If you include a version range, like the one above, you are saying that you want the software to fail to build if something ends up requiring 1.5. This probably isn't useful, as it will just lead to difficult to fix problems for library consumers. The left-bounded, right-unbounded range seems to be the best practice since we always know the lowest acceptable version. I guess the only time you might want a maximum version to be specified, is if that version exists, and is known to be incompatible with your library. Even here we shouldn't be too eager: only if the *official API* of a dependency acquires a breaking change should we use an upper bound; if there's just a single version out there that fails due to a bug, no action should be taken. -Marko -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
On Mon, Mar 4, 2013 at 2:55 PM, Wolodja Wentland babi...@gmail.com wrote: On Mon, Mar 04, 2013 at 14:42 +, David Powell wrote: 1.2 in this case is a soft dependency on 1.2. This is probably what you want. http://docs.codehaus.org/display/MAVEN/ Dependency+Mediation+and+Conflict+Resolution# DependencyMediationandConflictResolution-DependencyVersionRanges Then why declare a versioned dependency in the first place? It effectively declares a lower-bound on the version number. -- Dave -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [GSoC 2013] CinC
I think there probably is pretty easily a few months work there. If more work were needed, it would be interesting to try to get the clojurescript and clojure compilers using the same front-end. I'm fairly confident that's at least a summer's work. :) --Aaron On Sat, Mar 2, 2013 at 11:05 AM, Ambrose Bonnaire-Sergeant abonnaireserge...@gmail.com wrote: Is there enough to do here for a few months work? I've added a new project here: http://dev.clojure.org/display/community/Project+Ideas#ProjectIdeas-ClojureinClojure Feel free to change it Aaron. Thanks, Ambrose On Sat, Mar 2, 2013 at 2:11 PM, Aaron Cohen aa...@assonance.org wrote: I'd really like to see this happen actually. If there's interest I'd be happy to help or mentor. The current status is that I have a commit that needs finishing to implement letfn and I believe that was the last major special form that needed implementing in the compiler. Next up would be figuring out how to bootstrap a little better. It would also be nice to pull in the work that's been done recently on the reader in clojure and datastructures in clojure. On Sat, Mar 2, 2013 at 12:50 AM, Ambrose Bonnaire-Sergeant abonnaireserge...@gmail.com wrote: Hi, I think completing Aaron Cohen's CinC implementation would be a fantastic GSoC 2013 project. https://github.com/remleduff/CinC Is Aaron willing to mentor this project? If the core.typed proposal isn't chosen, I would be interested in this project also as a student. Thoughts? Thanks, Ambrose -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
On Mon, Mar 04, 2013 at 09:54 -0500, Chas Emerick wrote: AFAICT, the vast majority of Leiningen users (same goes for Maven users as well) expect the dependency vector [org.clojure/clojure 1.2.0] to establish a lower bound, the equivalent of [1.2.0,). Further, people expect the maximum of all overlapping requirements to be taken (so transitive dependencies requiring e.g. 1.2.0, 1.3.0, and 1.4.0 would resolve to 1.4.0), and for the dependencies specified in the root of the tree (i.e. the current project.clj) to override everything else, so specifying 1.3.1 in the current project would be the equivalent of [1.3.1] (this is equivalent to having implicit dependencyManagement in Maven, for those that know/care what that means). […] I agree that some indication of which libraries have been tested with which dependencies would be *great*. But that's part of a wide class of verification objectives I think that must be totally separate use cases from the (relatively) simple dependency resolution one that version numbers aim to support. Thanks for this mail! I think it is very helpful in the debate. The notion of soft dependencies seems to be quite ridiculous (as you could just have an unversioned one), but the real problem seem to be that there is no way to express the notion of: I (should) work with all stable releases in the 1.4.* branch of libfoo among many other reasonable schemes. -- Wolodja babi...@gmail.com 4096R/CAF14EFC 081C B7CD FF04 2BA9 94EA 36B2 8B7F 7D30 CAF1 4EFC signature.asc Description: Digital signature
Re: [GSoC 2013] CinC
Any prospective students interested? On Mon, Mar 4, 2013 at 11:04 PM, Aaron Cohen aa...@assonance.org wrote: I think there probably is pretty easily a few months work there. If more work were needed, it would be interesting to try to get the clojurescript and clojure compilers using the same front-end. I'm fairly confident that's at least a summer's work. :) --Aaron On Sat, Mar 2, 2013 at 11:05 AM, Ambrose Bonnaire-Sergeant abonnaireserge...@gmail.com wrote: Is there enough to do here for a few months work? I've added a new project here: http://dev.clojure.org/display/community/Project+Ideas#ProjectIdeas-ClojureinClojure Feel free to change it Aaron. Thanks, Ambrose On Sat, Mar 2, 2013 at 2:11 PM, Aaron Cohen aa...@assonance.org wrote: I'd really like to see this happen actually. If there's interest I'd be happy to help or mentor. The current status is that I have a commit that needs finishing to implement letfn and I believe that was the last major special form that needed implementing in the compiler. Next up would be figuring out how to bootstrap a little better. It would also be nice to pull in the work that's been done recently on the reader in clojure and datastructures in clojure. On Sat, Mar 2, 2013 at 12:50 AM, Ambrose Bonnaire-Sergeant abonnaireserge...@gmail.com wrote: Hi, I think completing Aaron Cohen's CinC implementation would be a fantastic GSoC 2013 project. https://github.com/remleduff/CinC Is Aaron willing to mentor this project? If the core.typed proposal isn't chosen, I would be interested in this project also as a student. Thoughts? Thanks, Ambrose -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
how to get SHA1 of a string?
I have been having problems making an API call to Omniture. I have exchanged a dozen emails with a developer at Omniture, and he gave me the impression that I was constructing my security codes incorrectly. So now I am confronting my ignorance over how Java handles certain conversions. The developer at Omniture sent me this explanation in an email: The security digest is formed from a sha1 hash of the following string concatenation: digest = sha1( Binary Nonce + Created Time String + API Secret Hex String (32 bytes) ) I have been struggling with this for several days and I have tried at least (literally) 200 variations on this bit of code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api- credentials :shared-secret]) nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM- dd'T'HH:mm:ss'Z') created (.format date-formatter (new Date)) digest-as-string (apply str (.getBytes nonce) created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) digest-as-string) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \)] header) This version gives me: Exception in the main function: #ClassCastException java.lang.ClassCastException: java.lang.String cannot be cast to [B For a long time I was using this for the last 3 lines: digest-as-string (apply str nonce created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) (.getByes digest-as-string)) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \) Here I wrapped the whole digest-as-string in (.getBytes) so there was no Java error, but this simply did not work when I pinged Omniture. In his email, he seems to suggest that the nonce should be binary but that the date and the secret should be strings: digest = sha1( Binary Nonce + Created Time String + API Secret Hex String (32 bytes) ) But, as I said, when I tried this I got the ClassCastException. No doubt some of my confusion is due to my ignorance of Java. I was able to take their sample PHP code and get that to successfully ping their API, however, my company has an official policy of moving to the JVM, and of course I have a personal preference to work with Clojure. So I'd like to figure out how to get this to work in Clojure. (Needless to say that Omniture doesn't offer sample code in Clojure.) I have been using clj-http to make the actual POST calls to Omniture. Since I am on a Mac, I have been using the excellent Charles network debugger ( http://www.charlesproxy.com/ ) to watch the actual posts being made. Everything looks correct, except that in the end the requests fails, apparently because the digest is malformed. Any suggestions? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: core.logic: Dividing the knowledge base
On Wed, Feb 27, 2013 at 4:03 PM, JvJ kfjwhee...@gmail.com wrote: It states that retractions aren't yet implemented. Is there any way to delete facts? Retractions are now supported. DB merging and cross-DB logic queries are still coming. Feel free to comment on the github issues if you have specific use cases in mind you would like to see this support. I have some specific ideas for things we want to do with this at Threatgrid, but that's only one use case. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
2013/3/4 larry google groups lawrencecloj...@gmail.com Any suggestions? You can use https://github.com/clojurewerkz/support/blob/master/src/clojure/clojurewerkz/support/hashing.clj note that you need to concatenate a byte array and bytes from a string first. -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
You can use https://github.com/clojurewerkz/support/blob/master/src/clojure/cloju... note that you need to concatenate a byte array and bytes from a string first. I appreciate your suggestion, but I feel that I need to understand why I failed when I used these classes: (org.apache.commons.codec.binary Base64) (org.apache.commons.codec.digest DigestUtils) If I am doing something fundamentally wrong, then I doubt I'll make progress simply by using a different library. --- lawrence On Mar 4, 10:53 am, Michael Klishin michael.s.klis...@gmail.com wrote: 2013/3/4 larry google groups lawrencecloj...@gmail.com Any suggestions? You can usehttps://github.com/clojurewerkz/support/blob/master/src/clojure/cloju... note that you need to concatenate a byte array and bytes from a string first. -- MK http://github.com/michaelklishinhttp://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
The developer at Omniture very kindly sent me a follow up email that gives me a sense of where my mistake might be, though I have no clear idea how to fix it. I sent him my code and my output, to which he responded: Most things seem in order until I see your wsse header. Its not correct as both the password digest and nonce values are improperly encoded. These should be base64 encoded representations of the values. Neither of these strings are base64 encoded. You can tell a given string is base64 encoded because it can only have 64 specific characters in the string: A-Z a-z 0-9 + / That's 26 + 26 + 10 + 2 = 64 Sure enough, this is my nonce: Nonce=[B@180fad0a I see his point -- this is not base64. But where did I go wrong? My code right now, for the nonce, consists of these lines: nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) And then this gets added to the header: header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \) So where did I go wrong? Why is this not Base64? On Mar 4, 10:53 am, Michael Klishin michael.s.klis...@gmail.com wrote: 2013/3/4 larry google groups lawrencecloj...@gmail.com Any suggestions? You can usehttps://github.com/clojurewerkz/support/blob/master/src/clojure/cloju... note that you need to concatenate a byte array and bytes from a string first. -- MK http://github.com/michaelklishinhttp://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
2013/3/4 larry google groups lawrencecloj...@gmail.com I appreciate your suggestion, but I feel that I need to understand why I failed when I used these classes: (.digest (java.security.MessageDigest/getInstance sha1) digest-as-string) expects its argument to be a byte array: http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest.html which can be obtained from a string using String#getBytes. Also, in (apply str (.getBytes nonce) created secret) I am not sure you get what you expect. clojure.core/str will take a string representation of a byte array and concat it. What you probably want is to concat all strings and then .getBytes from the result. Compare: user= (str (.getBytes aa) bb cc) [B@5d5d0293bbcc user= (str aa bb cc) aabbcc user= (.getBytes (str aa bb cc)) #byte[] [B@d9f8120 -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
expects its argument to be a byte array:http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest which can be obtained from a string using String#getBytes. I appreciate your suggestion. For most of the attempts that I have made, I have used this code: nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss'Z') created (.format date-formatter (new Date)) digest-as-string (apply str nonce created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) (.getBytes digest-as-string)) So the SHA1 is given a Byte array. This fails to give me a correctly formatted digest. On Mar 4, 11:04 am, Michael Klishin michael.s.klis...@gmail.com wrote: 2013/3/4 larry google groups lawrencecloj...@gmail.com I appreciate your suggestion, but I feel that I need to understand why I failed when I used these classes: (.digest (java.security.MessageDigest/getInstance sha1) digest-as-string) expects its argument to be a byte array:http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest which can be obtained from a string using String#getBytes. Also, in (apply str (.getBytes nonce) created secret) I am not sure you get what you expect. clojure.core/str will take a string representation of a byte array and concat it. What you probably want is to concat all strings and then .getBytes from the result. Compare: user= (str (.getBytes aa) bb cc) [B@5d5d0293bbcc user= (str aa bb cc) aabbcc user= (.getBytes (str aa bb cc)) #byte[] [B@d9f8120 -- MK http://github.com/michaelklishinhttp://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [GSoC 2013] CinC
Is this work related? http://clojurewest.org/sessions#martin https://github.com/kanaka/clojurescript On Monday, March 4, 2013 4:15:07 PM UTC+1, Ambrose Bonnaire-Sergeant wrote: Any prospective students interested? On Mon, Mar 4, 2013 at 11:04 PM, Aaron Cohen aa...@assonance.orgjavascript: wrote: I think there probably is pretty easily a few months work there. If more work were needed, it would be interesting to try to get the clojurescript and clojure compilers using the same front-end. I'm fairly confident that's at least a summer's work. :) --Aaron On Sat, Mar 2, 2013 at 11:05 AM, Ambrose Bonnaire-Sergeant abonnair...@gmail.com javascript: wrote: Is there enough to do here for a few months work? I've added a new project here: http://dev.clojure.org/display/community/Project+Ideas#ProjectIdeas-ClojureinClojure Feel free to change it Aaron. Thanks, Ambrose On Sat, Mar 2, 2013 at 2:11 PM, Aaron Cohen aa...@assonance.orgjavascript: wrote: I'd really like to see this happen actually. If there's interest I'd be happy to help or mentor. The current status is that I have a commit that needs finishing to implement letfn and I believe that was the last major special form that needed implementing in the compiler. Next up would be figuring out how to bootstrap a little better. It would also be nice to pull in the work that's been done recently on the reader in clojure and datastructures in clojure. On Sat, Mar 2, 2013 at 12:50 AM, Ambrose Bonnaire-Sergeant abonnair...@gmail.com javascript: wrote: Hi, I think completing Aaron Cohen's CinC implementation would be a fantastic GSoC 2013 project. https://github.com/remleduff/CinC Is Aaron willing to mentor this project? If the core.typed proposal isn't chosen, I would be interested in this project also as a student. Thoughts? Thanks, Ambrose -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com javascript: For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+u...@googlegroups.com javascript:. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com javascript: For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+u...@googlegroups.com javascript:. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com javascript: For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+u...@googlegroups.com javascript:. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Wrong clojure version depending on lein dependencies (was: ANN: Clojure 1.5)
On 4 March 2013 15:30, Wolodja Wentland babi...@gmail.com wrote: On Mon, Mar 04, 2013 at 15:04 +0100, Michał Marczyk wrote: On the other hand, if you care about securing your project, pulling in the latest bugfixes etc., you will need to monitor new releases anyway, regardless of the version numbering scheme used by their maintainers. And then release a new version for every new release of one of my depedencies? For a security fix, absolutely (although the users should upgrade the dependency on their side as soon as they learn about the problem anyway). For a different bug fix, maybe, depending on if you care about the bug. * Library authors would be more concerned about providing a stable interface for all releases that fall into a certain version span Those library authors who care about this already act in this way. Exactly and I would like to take advantage of this. I also think that establishing reasonable versioning and using version ranges as the norm would increase the pressure to, well, adhere to the norm by making sure that one does not break backward compatibility in a minor release. You can take advantage of this by using the new versions without changing your old code. Having this happen automatically -- as in, 1.4.0 gets pulled during the build on Monday, then 1.4.1 on Tuesday with no explicit action to cause it on your part -- means throwing away repeatability of your top-level build. I'm just not convinced that is a good idea. Yes, a lot of people don't really care in which language a tool is written (nor should they) and simply want to install that software using their preferred packaging system. Sure, and there's no problem with that: One reason for the need to not ship the same library all over again and in using version ranges is one of security. Imagine if a library is found to be buggy in version 1.2.3 and that a bugfix is available in 1.2.4. In order to take advantage of this one can either upgrade that single library on a system and /all other/ applications and libraries using this would be patched immediately or you could force every consumer to change their dependency on 1.2.3 to 1.2.4 and release a new version. The version used by an app is just the version in the jar put on the classpath by its launcher. For packaged apps, this will tend to be a symlink to some sort of latest in the 1.4.x branch release jar. The story for .so files is exactly the same (there's tons of symlinks in /usr/lib on an Ubuntu system). And what happens if 1.4.8 actually breaks compatibility with 1.4.7 while introducing a security fix? Well, if you're maintaining the package, you might actually backport the fix. Of course that's not very relevant to lots of Clojure software written today to be deployed to a server / cloud / run locally to crunch some data etc. where I have see no problem with simply updating the top-level project.clj / pom.xml. To give an example: I could write code against the standard library that ships with Python 2.7. I would expect that my code runs with all releases in the 2.7.* version range and would like to express that. See, for example, http://www.python.org/dev/peps/pep-0426/#version-scheme for a relevant PEP in the Python community and I am sure you'll find many other examples for other languages. Is it typical of Python packages to use non-trivial ranges? (As in, version specifiers which are not either == or purely =.) The handful of packages I've examined tend to be apps and use == or libraries and use = with no upper bound. I do recall that pip, virtualenv friends allow one to pull in the latest versions of packages easily -- and then to freeze the requirements for deployment, thereby avoiding headaches with the equivalent of non-repeatable builds. On 4 March 2013 16:15, Wolodja Wentland babi...@gmail.com wrote: On Mon, Mar 04, 2013 at 09:54 -0500, Chas Emerick wrote: […] Thanks for this mail! I think it is very helpful in the debate. The notion of soft dependencies seems to be quite ridiculous (as you could just have an unversioned one), but the real problem seem to be that there is no way to express the notion of: I (should) work with all stable releases in the 1.4.* branch of libfoo among many other reasonable schemes. I'd say you do this by including [libfoo 1.4.0] in your :dependencies. If your library then breaks because 1.4.8 comes out with a breaking change and some project's will have both libfoo-1.4.8 and your library on the classpath, then that is libfoo's fault. Wrapping up, I'd say that using version ranges feels like imposing something like semver on your dependencies. Unless you maintain those dependencies, you simply can't do it. If they follow the convention, you can take advantage and upgrade to new releases with ease; if they don't, there's no value in writing down an expectation to the contrary in your build spec. Cheers, Michał -- -- You received this message because you
why do I get Null pointer on this GMT SimpleDateFormat?
I need to get a GMT date. I found this page on StackOverflow: http://stackoverflow.com/questions/308683/how-can-i-get-the-current-date-and-time-in-utc-or-gmt-in-java It gives this example: SimpleDateFormat dateFormatGmt = new SimpleDateFormat(-MMM-dd HH:mm:ss); dateFormatGmt.setTimeZone(TimeZone.getTimeZone(GMT)); I thought I was following it closely with (this is inside of a (let) statement): date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) gmt-timezone (TimeZone/getTimeZone GMT) date-formatter-set-to-gmt-time (.setTimeZone date-formatter gmt- timezone) created (.format date-formatter-set-to-gmt-time (new Date)) but this line: created (.format date-formatter-set-to-gmt-time (new Date)) gives me: java.lang.NullPointerException: null Reflector.java:26 clojure.lang.Reflector.invokeInstanceMethod omniture.clj:52 mpdv-clojure.omniture/omniture-make-headers- for-api-call Can anyone tell me why? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: datomic question
This page:
http://clojure.org/reader
Offers this explanation of what the # character does:
Dispatch (#)
The dispatch macro causes the reader to use a reader macro from
another table, indexed by the character following #:
#{} - see Sets above
Regex patterns (#pattern)
A regex pattern is read and compiled at read time. The resulting
object is of type java.util.regex.Pattern.
Var-quote (#')
#'x = (var x)
Anonymous function literal (#())
#(...) = (fn [args] (...))
where args are determined by the presence of argument literals taking
the form %, %n or %. % is a synonym for %1, %n designates the nth arg
(1-based), and % designates a rest arg. This is not a replacement for
fn - idiomatic used would be for very short one-off mapping/filter fns
and the like. #() forms cannot be nested.
Ignore next form (#_)
The form following #_ is completely skipped by the reader. (This is a
more complete removal than the comment macro which yields nil).
Although, for me personally, I felt like I better understood the
description given on the EDN page:
https://github.com/edn-format/edn
# dispatch character
Tokens beginning with # are reserved. The character following #
determines the behavior. The dispatches #{ (sets), #_ (discard),
#alphabetic-char (tag) are defined below. # is not a delimiter.
tagged elements
edn supports extensibility through a simple mechanism. # followed
immediately by a symbol starting with an alphabetic character
indicates that that symbol is a tag. A tag indicates the semantic
interpretation of the following element. It is envisioned that a
reader implementation will allow clients to register handlers for
specific tags. Upon encountering a tag, the reader will first read the
next element, then pass the result to the corresponding handler for
further interpretation, and the result of the handler will be the data
value yielded by the tag + tagged element, i.e. reading a tag and
tagged element yields one value. This value is the value to be
returned to the program and is not further interpreted as edn data by
the reader.
This process will bottom out on elements either understood or built-
in.
Thus you can build new distinct readable elements out of (and only out
of) other readable elements, keeping extenders and extension consumers
out of the text business.
On Mar 4, 3:24 am, edw...@kenworthy.info wrote:
Thanks very much Michael and Jonas.
On Monday, 4 March 2013 07:20:24 UTC, Jonas wrote:
Hi
You can use the tempid (
http://docs.datomic.com/clojure/index.html#datomic.api/tempid) function
to generate new temporary ids.
Jonas
On Monday, March 4, 2013 8:50:56 AM UTC+2, edw...@kenworthy.info wrote:
Okay, I think I understand that.
Does that mean this code could never work as intended in a Clojure
program, only at the repl (which seems a bit of a limitation) or is there a
way to make it work as intended, generating a different id each time? Or is
the whole approach taken in this code flawed?
On Sunday, 3 March 2013 21:59:45 UTC, Michał Marczyk wrote:
#db/id ... is a tagged literal. It gets read in as an id object with
some integer inside. The way this happens is that the reader looks up
a data reader function associated with the symbol db/id in the map
held by the var *data-readers* and passes to it the result of parsing
the rest of the literal (a vector holding the keyword :db.part/db in
this case). Importantly, this function is not pure and the integer it
uses will be different on each invocation. (Given this form of the
#db/id literal; you can also specify a particular number yourself --
#db/id [:db.part/db some-number-here].)
In any case, once the reader reads in your code including some
particular id, the compiler will compile the result preserving the
particular values it sees, so it will embed code to construct *exactly
this* id in the compiled output. Thus you end up with a particular id
hardwired into the first version of your function.
With the second version, if you invoke it multiple times at the REPL,
you ask the reader for a new id at each invocation, so it works as you
expect. If instead you were to use it inside a function like so:
(defn foo []
(make-column-schema #db/id [:db.part/db] :results/subject
:db.type/string)),
then again the same id would be used for every (foo) call.
Cheers,
Michał
On 3 March 2013 21:58, edw...@kenworthy.info wrote:
So, I am studying a piece of code from the web. I've dissected most of
it
and am in the process of re-factoring it.
What I don't understand is why one version works and the other
doesn't.
So for both:
(ns gcse-results.core (:use [datomic.api :only [q db] :as d]) (:use
quil.core))
This doesn't work:
(defn make-column-schema [db-ident db-type]
{:db/id #db/id[:db.part/db]
:db/ident db-ident
:db/valueType db-type
:db/cardinality :db.cardinality/one
:db.install/_attribute
Re: Interesting Light Table post
I was thinking a lot after reading the thread Why is this so difficult that maybe what we need is a dedicated IDE, something that's built with the clojure workflow in mind, The Clojure workflow, as it has evolved in this community, has mostly been repl combined with a text editor. And that is exactly what Light Table is delivering. The criticisms that were offered were criticisms of Clojure. Two different people complained that they tried to load their PHP projects and they found that Light Table offered no tools for PHP. Another guy asked about Ruby. Another guy asked about Python. No one said, I think Light Table makes it hard for me to write Clojure code. People were complaining that their own favorite language was not supported. And most of that was simply a misunderstanding of what Light Table was trying to do. My understanding is that, given enough time, Light Table will eventually support a large number of languages. Much of the criticism that was aimed at Light Table simply amounted to people taking an early beta product and assuming it was a polished, finished 1.0 release. On Feb 28, 11:54 am, Erlis Vidal er...@erlisvidal.com wrote: Hey guys, this is in the top of Hacker News right now, it looks very nice: http://www.chris-granger.com/2013/02/27/light-table-030-experience/ I was thinking a lot after reading the thread Why is this so difficult that maybe what we need is a dedicated IDE, something that's built with the clojure workflow in mind, I don't know... maybe this is the missing piece, who knows. I was thinking also on how cool would be to have something like the Smalltalk environment but a la clojure... I'm really excited about this project. Good job Chris! -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Git is a purely functional data structure
I found this to be interesting and well written: Git is a purely functional data structure http://www.jayway.com/2013/03/03/git-is-a-purely-functional-data-structure/ -r -- http://www.cfcl.com/rdmRich Morin http://www.cfcl.com/rdm/resume r...@cfcl.com http://www.cfcl.com/rdm/weblog +1 650-873-7841 Software system design, development, and documentation -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
What role does a semicolon play in this case?
Hi, I'm reading about Clojure from an O'Reilly book and came across this
example:
(def a-map {:first-key first-value :second-key second-value third-key
:third-value fourth-key 4})
Is the semicolon simply part of the atom? Because {first:key
first-value...} doesn't work and I get an exception.
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Re: What role does a semicolon play in this case?
I'm assuming you are talking about the colon :, it means that you are working with a keyword: http://clojure.org/data_structures#Data%20Structures-Keywords -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: What role does a semicolon play in this case?
Yes, colon :) . Thanks for your help. On Mon, Mar 4, 2013 at 12:30 PM, Mauricio Aldazosa mauricio.aldaz...@ciencias.unam.mx wrote: I'm assuming you are talking about the colon :, it means that you are working with a keyword: http://clojure.org/data_structures#Data%20Structures-Keywords -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: What role does a semicolon play in this case?
Um... Semicolon? where?
The colon indicates a symbol though :)
On Mar 4, 2013 10:55 PM, John Smith yoursurrogate...@gmail.com wrote:
Hi, I'm reading about Clojure from an O'Reilly book and came across this
example:
(def a-map {:first-key first-value :second-key second-value
third-key :third-value fourth-key 4})
Is the semicolon simply part of the atom? Because {first:key
first-value...} doesn't work and I get an exception.
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Re: Interesting Light Table post
Exactly! Tha'ts why I see a lot of value in this product! Enabling other languages might be great for Light Table's popularity, but creating the ultimate clojure experience will do a greater good for the clojure community. Now they have two paths, better clojure experience or great popularity, they cannot have both at the same time at this moment. It will be interesting to see what one can do with the plugin mechanism, maybe is up to the clojure community to create the better experience, at this point I'm just very happy to have something like this, great job guys! On Mon, Mar 4, 2013 at 12:02 PM, larry google groups lawrencecloj...@gmail.com wrote: I was thinking a lot after reading the thread Why is this so difficult that maybe what we need is a dedicated IDE, something that's built with the clojure workflow in mind, The Clojure workflow, as it has evolved in this community, has mostly been repl combined with a text editor. And that is exactly what Light Table is delivering. The criticisms that were offered were criticisms of Clojure. Two different people complained that they tried to load their PHP projects and they found that Light Table offered no tools for PHP. Another guy asked about Ruby. Another guy asked about Python. No one said, I think Light Table makes it hard for me to write Clojure code. People were complaining that their own favorite language was not supported. And most of that was simply a misunderstanding of what Light Table was trying to do. My understanding is that, given enough time, Light Table will eventually support a large number of languages. Much of the criticism that was aimed at Light Table simply amounted to people taking an early beta product and assuming it was a polished, finished 1.0 release. On Feb 28, 11:54 am, Erlis Vidal er...@erlisvidal.com wrote: Hey guys, this is in the top of Hacker News right now, it looks very nice: http://www.chris-granger.com/2013/02/27/light-table-030-experience/ I was thinking a lot after reading the thread Why is this so difficult that maybe what we need is a dedicated IDE, something that's built with the clojure workflow in mind, I don't know... maybe this is the missing piece, who knows. I was thinking also on how cool would be to have something like the Smalltalk environment but a la clojure... I'm really excited about this project. Good job Chris! -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
On Mon, Mar 4, 2013 at 11:12 AM, larry google groups lawrencecloj...@gmail.com wrote: expects its argument to be a byte array: http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest which can be obtained from a string using String#getBytes. I appreciate your suggestion. For most of the attempts that I have made, I have used this code: nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) Is this used somewhere? date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss'Z') created (.format date-formatter (new Date)) digest-as-string (apply str nonce created secret) (str binary-array) returns the toString of the array, which is something like [B@5d5d0293. That has nothing to do with the contents of the array. I think you want the base64 encoded string here. --Aaron -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [GSoC 2013] CinC
On Mon, Mar 4, 2013 at 11:26 AM, abp abp...@gmail.com wrote: Is this work related? http://clojurewest.org/sessions#martin https://github.com/kanaka/clojurescript Nope, completely unrelated, though similar work. --Aaron -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Interesting Light Table post
It will be interesting to see what one can do with the plugin mechanism, maybe is up to the clojure community to create the better experience, at this point I'm just very happy to have something like this, great job guys! I have learned Clojure over the last 8 months, and I can speak to the experience of being a noob and trying to come up to speed on this language. For me, Clojure itself was not the problem. I am on a Mac, with Homebrew installed, so I read some of the examples online, and I did brew insall ___ for several different packages, and I read some books, and I was ready to go. I am not clear why people regard this as difficult. What was difficult for me was everything that had to do with Java. I have had almost no experience with Java, and Clojure depends heavily on Java. So learning Java, and the JVM, tripped me up repeatedly. But my experience with Clojure, itself, was relatively smooth, certainly no harder than learning Ruby or PHP or Python. On Mar 4, 12:39 pm, Erlis Vidal er...@erlisvidal.com wrote: Exactly! Tha'ts why I see a lot of value in this product! Enabling other languages might be great for Light Table's popularity, but creating the ultimate clojure experience will do a greater good for the clojure community. Now they have two paths, better clojure experience or great popularity, they cannot have both at the same time at this moment. It will be interesting to see what one can do with the plugin mechanism, maybe is up to the clojure community to create the better experience, at this point I'm just very happy to have something like this, great job guys! On Mon, Mar 4, 2013 at 12:02 PM, larry google groups lawrencecloj...@gmail.com wrote: I was thinking a lot after reading the thread Why is this so difficult that maybe what we need is a dedicated IDE, something that's built with the clojure workflow in mind, The Clojure workflow, as it has evolved in this community, has mostly been repl combined with a text editor. And that is exactly what Light Table is delivering. The criticisms that were offered were criticisms of Clojure. Two different people complained that they tried to load their PHP projects and they found that Light Table offered no tools for PHP. Another guy asked about Ruby. Another guy asked about Python. No one said, I think Light Table makes it hard for me to write Clojure code. People were complaining that their own favorite language was not supported. And most of that was simply a misunderstanding of what Light Table was trying to do. My understanding is that, given enough time, Light Table will eventually support a large number of languages. Much of the criticism that was aimed at Light Table simply amounted to people taking an early beta product and assuming it was a polished, finished 1.0 release. On Feb 28, 11:54 am, Erlis Vidal er...@erlisvidal.com wrote: Hey guys, this is in the top of Hacker News right now, it looks very nice: http://www.chris-granger.com/2013/02/27/light-table-030-experience/ I was thinking a lot after reading the thread Why is this so difficult that maybe what we need is a dedicated IDE, something that's built with the clojure workflow in mind, I don't know... maybe this is the missing piece, who knows. I was thinking also on how cool would be to have something like the Smalltalk environment but a la clojure... I'm really excited about this project. Good job Chris! -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visithttps://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) Is this used somewhere? Yes, at the end, everything gets pulled together in a big string, which is added as a header to the POST request: header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \) As the developer from Omniture told me: The nonce is transmitted in the header as base64 encoded. However, the digest is formed with the raw binary version (aka decoded) version of the string. The concept you have to understand is that the authorization server is re-performing these critical steps on the back end. If a step isn't done exactly in the client, the digest will mismatch and cause an auth failure. On Mar 4, 12:49 pm, Aaron Cohen aa...@assonance.org wrote: On Mon, Mar 4, 2013 at 11:12 AM, larry google groups lawrencecloj...@gmail.com wrote: expects its argument to be a byte array: http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest which can be obtained from a string using String#getBytes. I appreciate your suggestion. For most of the attempts that I have made, I have used this code: nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) Is this used somewhere? date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss'Z') created (.format date-formatter (new Date)) digest-as-string (apply str nonce created secret) (str binary-array) returns the toString of the array, which is something like [B@5d5d0293. That has nothing to do with the contents of the array. I think you want the base64 encoded string here. --Aaron -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
(str binary-array) returns the toString of the array, which is something like [B@5d5d0293. That has nothing to do with the contents of the array. I think you want the base64 encoded string here. Hmm, interesting. I had assumed that I wanted a string run through SHA1, so I created the string, then called getBytes on it to feed it to SHA1: digest-as-string (apply str nonce created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) (.getBytes digest-as-string)) But this is not working. On Mar 4, 12:49 pm, Aaron Cohen aa...@assonance.org wrote: On Mon, Mar 4, 2013 at 11:12 AM, larry google groups lawrencecloj...@gmail.com wrote: expects its argument to be a byte array: http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest which can be obtained from a string using String#getBytes. I appreciate your suggestion. For most of the attempts that I have made, I have used this code: nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) Is this used somewhere? date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss'Z') created (.format date-formatter (new Date)) digest-as-string (apply str nonce created secret) (str binary-array) returns the toString of the array, which is something like [B@5d5d0293. That has nothing to do with the contents of the array. I think you want the base64 encoded string here. --Aaron -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Interesting Light Table post
On Monday, March 4, 2013 6:05:01 PM UTC, larry google groups wrote: What was difficult for me was everything that had to do with Java. I have had almost no experience with Java, and Clojure depends heavily on Java. So learning Java, and the JVM, tripped me up repeatedly. Amen to that. My problem at the moment is that what I want to do with Clojure depends heavily on Java, and I can't really get started with the language until I've sussed out the Java/JVM stuff. I can't wait until I get that gubbins out the way and can get onto the interesting bit. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
Not sure if it's helpful in this context, but I've been playing with a more functional message-digest/secure-hashing interface recently. Please take a look at: https://github.com/franks42/clj.security.message-digest It's still a little raw, and probably more educational than practical right now, but my hope was that if could clarify some of the message-digesting workings. Would love to get some feedback... Enjoy, Frank. On Mar 4, 2013, at 10:09 AM, larry google groups lawrencecloj...@gmail.com wrote: nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) Is this used somewhere? Yes, at the end, everything gets pulled together in a big string, which is added as a header to the POST request: header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \) As the developer from Omniture told me: The nonce is transmitted in the header as base64 encoded. However, the digest is formed with the raw binary version (aka decoded) version of the string. The concept you have to understand is that the authorization server is re-performing these critical steps on the back end. If a step isn't done exactly in the client, the digest will mismatch and cause an auth failure. On Mar 4, 12:49 pm, Aaron Cohen aa...@assonance.org wrote: On Mon, Mar 4, 2013 at 11:12 AM, larry google groups lawrencecloj...@gmail.com wrote: expects its argument to be a byte array: http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest which can be obtained from a string using String#getBytes. I appreciate your suggestion. For most of the attempts that I have made, I have used this code: nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) Is this used somewhere? date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss'Z') created (.format date-formatter (new Date)) digest-as-string (apply str nonce created secret) (str binary-array) returns the toString of the array, which is something like [B@5d5d0293. That has nothing to do with the contents of the array. I think you want the base64 encoded string here. --Aaron -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
Frank, I thank you for your suggestion, though at the moment I am trying to reduce the number of places where I could have made a mistake, switching to a new interface would increase the number of places that I might make a mistake. I would be interested in experimenting with the new interface as soon as I have the current interface working. On Mar 4, 1:20 pm, Frank Siebenlist frank.siebenl...@gmail.com wrote: Not sure if it's helpful in this context, but I've been playing with a more functional message-digest/secure-hashing interface recently. Please take a look at: https://github.com/franks42/clj.security.message-digest It's still a little raw, and probably more educational than practical right now, but my hope was that if could clarify some of the message-digesting workings. Would love to get some feedback... Enjoy, Frank. On Mar 4, 2013, at 10:09 AM, larry google groups lawrencecloj...@gmail.com wrote: nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) Is this used somewhere? Yes, at the end, everything gets pulled together in a big string, which is added as a header to the POST request: header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \) As the developer from Omniture told me: The nonce is transmitted in the header as base64 encoded. However, the digest is formed with the raw binary version (aka decoded) version of the string. The concept you have to understand is that the authorization server is re-performing these critical steps on the back end. If a step isn't done exactly in the client, the digest will mismatch and cause an auth failure. On Mar 4, 12:49 pm, Aaron Cohen aa...@assonance.org wrote: On Mon, Mar 4, 2013 at 11:12 AM, larry google groups lawrencecloj...@gmail.com wrote: expects its argument to be a byte array: http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest which can be obtained from a string using String#getBytes. I appreciate your suggestion. For most of the attempts that I have made, I have used this code: nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) Is this used somewhere? date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss'Z') created (.format date-formatter (new Date)) digest-as-string (apply str nonce created secret) (str binary-array) returns the toString of the array, which is something like [B@5d5d0293. That has nothing to do with the contents of the array. I think you want the base64 encoded string here. --Aaron -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visithttps://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) digest-as-string (apply str nonce created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) (.getBytes digest-as-string)) digest-base64 (Base64/encodeBase64 digest) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \)] header) but when I print the header to the terminal, I still see values that should be base64 but are not: PasswordDigest=[B@3652831e Nonce=[B@631e426e Created=2\ 013-03-04T13:26:21 The classes I'm using are, I think, fairly standard: (java.security MessageDigest) (org.apache.commons.codec.binary Base64) (org.apache.commons.codec.digest DigestUtils) What am I doing wrong? On Mar 4, 1:20 pm, Frank Siebenlist frank.siebenl...@gmail.com wrote: Not sure if it's helpful in this context, but I've been playing with a more functional message-digest/secure-hashing interface recently. Please take a look at: https://github.com/franks42/clj.security.message-digest It's still a little raw, and probably more educational than practical right now, but my hope was that if could clarify some of the message-digesting workings. Would love to get some feedback... Enjoy, Frank. On Mar 4, 2013, at 10:09 AM, larry google groups lawrencecloj...@gmail.com wrote: nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) Is this used somewhere? Yes, at the end, everything gets pulled together in a big string, which is added as a header to the POST request: header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \) As the developer from Omniture told me: The nonce is transmitted in the header as base64 encoded. However, the digest is formed with the raw binary version (aka decoded) version of the string. The concept you have to understand is that the authorization server is re-performing these critical steps on the back end. If a step isn't done exactly in the client, the digest will mismatch and cause an auth failure. On Mar 4, 12:49 pm, Aaron Cohen aa...@assonance.org wrote: On Mon, Mar 4, 2013 at 11:12 AM, larry google groups lawrencecloj...@gmail.com wrote: expects its argument to be a byte array: http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest which can be obtained from a string using String#getBytes. I appreciate your suggestion. For most of the attempts that I have made, I have used this code: nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) Is this used somewhere? date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss'Z') created (.format date-formatter (new Date)) digest-as-string (apply str nonce created secret) (str binary-array) returns the toString of the array, which is something like [B@5d5d0293. That has nothing to do with the contents of the array. I think you want the base64 encoded string here. --Aaron -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visithttps://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit
Re: Faster lein
Buck Golemon writes: I take this to mean that there's no widely accepted solution. The widely-accepted solution is to leave a single process running. It certainly has limitations, but it's the way most people deal with the problem. Really, I just want `lein run` to be faster. Can someone explain where all this time is spent? Basically it comes from having to load two JVMs, one for Leiningen itself and one for the project. Leiningen itself is fairly optimized for this (fully AOTed, bytecode verification is turned off, fancy warm-up JIT techniques disabled) which is why it's possible to get `lein version` to return in under a second in some cases. But there are various compatibility issues that prevent us from being able to perform the same optimizations on project JVMs. These are documented on the Faster page of the Leiningen wiki, and you can do some testing to determine whether or not they affect your project in particular; if not then they should provide a good boost. But nothing will ever come close to the speed of keeping the JVM resident, which is why I'm working on `:eval-in :nrepl` and lein.el. For people who don't use Emacs, Jark is the only tool I'm aware of that is working towards this in a way that's decoupled from the editor. They could probably use some help both testing and implementing it. I hear a lot of talk of compiling, but why would we re-compile things where none of the dependencies have changed? Performing a full AOT of all your dependencies will help if you have a large project with lots of dependencies that get loaded at application boot. But that effect would be something along the lines of bringing boot down from 20s to 12s rather than bringing it from 5s to 1s. -Phil -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
larry google groups lawrencecloj...@gmail.com writes: Hmm, interesting. I had assumed that I wanted a string run through SHA1, so I created the string, then called getBytes on it to feed it to SHA1: digest-as-string (apply str nonce created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) (.getBytes digest-as-string)) (defn sha1[^bytes b] (.digest (doto (java.security.MessageDigest/getInstance SHA-1) (.reset) (.update b (defn as-hex [^bytes v] (clojure.string/lower-case (javax.xml.bind.DatatypeConverter/printHexBinary v))) (defn sha1-hex [^String v] (- (.getBytes v) (sha1) (as-hex))) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
Hmm, I finally got a different error message (after days of trying). I
re-read the documentation here:
http://commons.apache.org/codec/apidocs/org/apache/commons/codec/binary/Base64.html
and realized I might need to use this method:
encodeBase64String
which returns a string. The method I had been using was giving me
bytes instead of a string.
Now the API servers at Omniture tell me:
{\error\:\The nonce (ZTQxNWI4ZTU0YTQyMGEwZjRmZTY0ZTU0Nzc4MzgzZTQ=)
has already been used\}}
If anyone can suggest a better way to generate a random string, I
would be grateful.
On Mar 4, 1:31 pm, larry google groups lawrencecloj...@gmail.com
wrote:
So, right now I am using this code:
(let [username (get-in @um/interactions [:omniture-api-
credentials :username])
secret (get-in @um/interactions [:omniture-api-credentials :shared-
secret])
nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100
nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce))
date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss)
formatter gmt-timezone)
created (.format date-formatter (new Date))
digest-as-string (apply str nonce created secret)
digest (.digest (java.security.MessageDigest/getInstance sha1)
(.getBytes digest-as-string))
digest-base64 (Base64/encodeBase64 digest)
header (apply str UsernameToken Username=\ username \
PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \
Created=\ created \)]
header)
but when I print the header to the terminal, I still see values that
should be base64 but are not:
PasswordDigest=[B@3652831e Nonce=[B@631e426e Created=2\
013-03-04T13:26:21
The classes I'm using are, I think, fairly standard:
(java.security MessageDigest)
(org.apache.commons.codec.binary Base64)
(org.apache.commons.codec.digest DigestUtils)
What am I doing wrong?
On Mar 4, 1:20 pm, Frank Siebenlist frank.siebenl...@gmail.com
wrote:
Not sure if it's helpful in this context, but I've been playing with a more
functional
message-digest/secure-hashing interface recently.
Please take a look at:
https://github.com/franks42/clj.security.message-digest
It's still a little raw, and probably more educational than practical
right now,
but my hope was that if could clarify some of the message-digesting
workings.
Would love to get some feedback...
Enjoy, Frank.
On Mar 4, 2013, at 10:09 AM, larry google groups
lawrencecloj...@gmail.com wrote:
nonce (DigestUtils/md5Hex (random-string 32))
nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce))
Is this used somewhere?
Yes, at the end, everything gets pulled together in a big string,
which is added as a header to the POST request:
header (apply str UsernameToken Username=\ username \
PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \
Created=\ created \)
As the developer from Omniture told me:
The nonce is transmitted in the header as base64 encoded. However,
the digest is formed with the raw binary version (aka decoded) version
of the string. The concept you have to understand is that the
authorization server is re-performing these critical steps on the back
end. If a step isn't done exactly in the client, the digest will
mismatch and cause an auth failure.
On Mar 4, 12:49 pm, Aaron Cohen aa...@assonance.org wrote:
On Mon, Mar 4, 2013 at 11:12 AM, larry google groups
lawrencecloj...@gmail.com wrote:
expects its argument to be a byte array:
http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest
which can be obtained from a string using String#getBytes.
I appreciate your suggestion. For most of the attempts that I have
made, I have used this code:
nonce (DigestUtils/md5Hex (random-string 32))
nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce))
Is this used somewhere?
date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss'Z')
created (.format date-formatter (new Date))
digest-as-string (apply str nonce created secret)
(str binary-array) returns the toString of the array, which is something
like [B@5d5d0293. That has nothing to do with the contents of the
array.
I think you want the base64 encoded string here.
--Aaron
--
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For
Re: how to get SHA1 of a string?
Craig Brozefsky cr...@red-bean.com writes: .. Sorry, didn't reaze you wanted the output to be base64 encoded, in which case, add these funcs: (defn base64-encode [^bytes v] (javax.xml.bind.DatatypeConverter/printBase64Binary v)) (defn sha1-base64 [^String v] (- (.getBytes v) (sha1) (base64-encode))) -- Craig Brozefsky cr...@red-bean.com Premature reification is the root of all evil -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
Now the API servers at Omniture tell me:
{\error\:\The nonce (ZTQxNWI4ZTU0YTQyMGEwZjRmZTY0ZTU0Nzc4MzgzZTQ=)
has already been used\}}
I may have misunderstood this. clj-http defaults to retrying the same
request 4 times, if it gets a 4xx error, so the nonce gets re-used 4
times, which would explain this error on the 2nd, 3rd and 4th
attempt.
Sadly, I can not figure out what the error is on the 1st attempt.
On Mar 4, 1:38 pm, larry google groups lawrencecloj...@gmail.com
wrote:
Hmm, I finally got a different error message (after days of trying). I
re-read the documentation here:
http://commons.apache.org/codec/apidocs/org/apache/commons/codec/bina...
and realized I might need to use this method:
encodeBase64String
which returns a string. The method I had been using was giving me
bytes instead of a string.
Now the API servers at Omniture tell me:
{\error\:\The nonce (ZTQxNWI4ZTU0YTQyMGEwZjRmZTY0ZTU0Nzc4MzgzZTQ=)
has already been used\}}
If anyone can suggest a better way to generate a random string, I
would be grateful.
On Mar 4, 1:31 pm, larry google groups lawrencecloj...@gmail.com
wrote:
So, right now I am using this code:
(let [username (get-in @um/interactions [:omniture-api-
credentials :username])
secret (get-in @um/interactions [:omniture-api-credentials :shared-
secret])
nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100
nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce))
date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss)
formatter gmt-timezone)
created (.format date-formatter (new Date))
digest-as-string (apply str nonce created secret)
digest (.digest (java.security.MessageDigest/getInstance sha1)
(.getBytes digest-as-string))
digest-base64 (Base64/encodeBase64 digest)
header (apply str UsernameToken Username=\ username \
PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \
Created=\ created \)]
header)
but when I print the header to the terminal, I still see values that
should be base64 but are not:
PasswordDigest=[B@3652831e Nonce=[B@631e426e Created=2\
013-03-04T13:26:21
The classes I'm using are, I think, fairly standard:
(java.security MessageDigest)
(org.apache.commons.codec.binary Base64)
(org.apache.commons.codec.digest DigestUtils)
What am I doing wrong?
On Mar 4, 1:20 pm, Frank Siebenlist frank.siebenl...@gmail.com
wrote:
Not sure if it's helpful in this context, but I've been playing with a
more functional
message-digest/secure-hashing interface recently.
Please take a look at:
https://github.com/franks42/clj.security.message-digest
It's still a little raw, and probably more educational than practical
right now,
but my hope was that if could clarify some of the message-digesting
workings.
Would love to get some feedback...
Enjoy, Frank.
On Mar 4, 2013, at 10:09 AM, larry google groups
lawrencecloj...@gmail.com wrote:
nonce (DigestUtils/md5Hex (random-string 32))
nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce))
Is this used somewhere?
Yes, at the end, everything gets pulled together in a big string,
which is added as a header to the POST request:
header (apply str UsernameToken Username=\ username \
PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \
Created=\ created \)
As the developer from Omniture told me:
The nonce is transmitted in the header as base64 encoded. However,
the digest is formed with the raw binary version (aka decoded) version
of the string. The concept you have to understand is that the
authorization server is re-performing these critical steps on the back
end. If a step isn't done exactly in the client, the digest will
mismatch and cause an auth failure.
On Mar 4, 12:49 pm, Aaron Cohen aa...@assonance.org wrote:
On Mon, Mar 4, 2013 at 11:12 AM, larry google groups
lawrencecloj...@gmail.com wrote:
expects its argument to be a byte array:
http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest
which can be obtained from a string using String#getBytes.
I appreciate your suggestion. For most of the attempts that I have
made, I have used this code:
nonce (DigestUtils/md5Hex (random-string 32))
nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce))
Is this used somewhere?
date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss'Z')
created (.format date-formatter (new Date))
digest-as-string (apply str nonce created secret)
(str binary-array) returns the toString of the array, which is
something
like [B@5d5d0293. That has nothing to do with the contents of the
array.
I think you want the base64 encoded string here.
--Aaron
--
--
You received this message because you are subscribed to the Google
Groups Clojure group.
Re: how to get SHA1 of a string?
I am willing to use these functions, but do you have any idea why my code was wrong? I have the impression that I have somehow ended up with a binary where I should instead have a string. Using a different function won't help me if I use it the wrong way. On Mar 4, 1:43 pm, Craig Brozefsky cr...@red-bean.com wrote: Craig Brozefsky cr...@red-bean.com writes: .. Sorry, didn't reaze you wanted the output to be base64 encoded, in which case, add these funcs: (defn base64-encode [^bytes v] (javax.xml.bind.DatatypeConverter/printBase64Binary v)) (defn sha1-base64 [^String v] (- (.getBytes v) (sha1) (base64-encode))) -- Craig Brozefsky cr...@red-bean.com Premature reification is the root of all evil -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[ANN] modern-cljs updated to latest libs and plugins
Hello all, I just published the update of modern-cljs series of tutorials which incorporates the latest available libs and plug-ins (e.g. lein-cljsbuild 0.3.0, lein-ring 0.8.3, domina 1.0.2-SNAPSHOT, shoreleave 0.3.0, etc, Hope it helps Mimmo https://github.com/magomimmo/modern-cljs -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
Right now I am using this block of code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) random-number (math/round (* (rand 1 ) 100)) nonce (DigestUtils/md5Hex (str random-number)) nonce-encoded-base64 (Base64/encodeBase64String (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) created (.format date-formatter (new Date)) digest-as-string (apply str nonce created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) (.getBytes digest-as-string)) digest-base64 (Base64/encodeBase64String digest) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest-base64 \ Nonce=\ nonce-encoded-base64 \ Created=\ created \)] header) And I get output that contains an equal sign, which I think is suspect: PasswordDigest=r+HWjSAk8AUvo/QmKKfbqQFnJ18= Nonce=NmQxNGUwZjVlMjFhYjE1MzQ4MjUxYTA1MTg1YzE3ZTg= The developer at Omniture reminded me of the characters allowed into Base64: You can tell a given string is base64 encoded because it can only have 64 specific characters in the string: A-Z a-z 0-9 + / That's 26 + 26 + 10 + 2 = 64 http://en.wikipedia.org/wiki/Base64 I assume that means that if I see a = in the string, then it is not really Base64 encoded? On Mar 4, 1:43 pm, Craig Brozefsky cr...@red-bean.com wrote: Craig Brozefsky cr...@red-bean.com writes: .. Sorry, didn't reaze you wanted the output to be base64 encoded, in which case, add these funcs: (defn base64-encode [^bytes v] (javax.xml.bind.DatatypeConverter/printBase64Binary v)) (defn sha1-base64 [^String v] (- (.getBytes v) (sha1) (base64-encode))) -- Craig Brozefsky cr...@red-bean.com Premature reification is the root of all evil -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
About this: (defn sha1-base64 [^String v] (- (.getBytes v) (sha1) (base64-encode))) I tried to use it and I got unknown symbol for sha1, which makes sense. What class are you using for sha1? On Mar 4, 1:43 pm, Craig Brozefsky cr...@red-bean.com wrote: Craig Brozefsky cr...@red-bean.com writes: .. Sorry, didn't reaze you wanted the output to be base64 encoded, in which case, add these funcs: (defn base64-encode [^bytes v] (javax.xml.bind.DatatypeConverter/printBase64Binary v)) (defn sha1-base64 [^String v] (- (.getBytes v) (sha1) (base64-encode))) -- Craig Brozefsky cr...@red-bean.com Premature reification is the root of all evil -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)] header) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: byte-array woes
I gave it my vote - thanks for trying to fix this issue - FrankS. FrankS (from mobile) On Mar 4, 2013, at 6:30 AM, Karsten Schmidt i...@toxi.co.uk wrote: Hi Frank, I've added a patch to CLJ-766 with a potential fix. Also, Andy F. kindly pointed out that interested parties should vote on that issue to help increase its visibility... Add your 2 cents here (provided you've a CA): http://dev.clojure.org/jira/browse/CLJ-766 Best, K. -- Karsten Schmidt http://postspectacular.com | http://toxiclibs.org | http://toxi.co.uk On 3 March 2013 00:01, Frank Siebenlist frank.siebenl...@gmail.com wrote: I just ran into that issue while I was constructing byte-arrays for secure-hash test cases. Ended-up using (byte-array (vector-of :byte 1 2 3 4)) to avoid writing the (byte-array [(byte 1)(byte 2)(byte 3)(byte 4)]). Transparently adding valid byte-number values to a byte-array makes sense and would be helpful. Thanks, FrankS. On Mar 2, 2013, at 2:49 PM, Karsten Schmidt i...@toxi.co.uk wrote: Thanks, Marko! I'd count this as a sort of bug though... at least in terms of consistency, since it breaks expected behaviour as established by other common array c'tor functions: (int-array [1 2 3]) = ok (long-array [1 2 3]) = ok (float-array [1 2 3]) = ok (double-array [1 2 3]) = ok (byte-array [1 2 3]) = fail (short-array [1 2 3]) = fail (char-array [1 2 3]) = fail, but bearable since you'd use shorts anyway if you specify chars as numbers I had a look at clojure.lang.Numbers.java and found a fix for both bytes shorts: Whereas all the working array c'tors functions are using this pattern: array[i] = ((Number)s.first()).intValue(); ... the byte-array short-array versions attempt to cast the sequence items directly, i.e. array[i] = (Byte)s.first(); Changing this to the first pattern (via Number) fixes the issue and I'll submit a patch for this... Hth! K. -- Karsten Schmidt http://postspectacular.com | http://toxiclibs.org | http://toxi.co.uk On 2 March 2013 18:43, Marko Topolnik marko.topol...@gmail.com wrote: On Saturday, March 2, 2013 6:22:51 PM UTC+1, Karsten Schmidt wrote: Is that a bug or can someone please explain why bytes seem to require special treatment in Clojure? Calling it a bug wouldn't be entirely fair since it's a missing feature. I'd say this is filable as an enhancement request. -Marko -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received
Re: how to get SHA1 of a string?
On Mon, Mar 4, 2013 at 1:54 PM, larry google groups lawrencecloj...@gmail.com wrote: PasswordDigest=r+HWjSAk8AUvo/QmKKfbqQFnJ18= Nonce=NmQxNGUwZjVlMjFhYjE1MzQ4MjUxYTA1MTg1YzE3ZTg= The developer at Omniture reminded me of the characters allowed into Base64: You can tell a given string is base64 encoded because it can only have 64 specific characters in the string: A-Z a-z 0-9 + / That's 26 + 26 + 10 + 2 = 64 http://en.wikipedia.org/wiki/Base64 I assume that means that if I see a = in the string, then it is not really Base64 encoded? Every Base64 encoded string I've ever seen ends with at least one =. I believe it's used for padding. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted Apparently, yes. The developer at Omniture reviewed it and said my only problem was the way the passwordDigest was created. On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)] header) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) There may be an issue with this snippet of code as .update does not return anything… i.e. nil. -FS. On Mar 4, 2013, at 11:06 AM, larry google groups lawrencecloj...@gmail.com wrote: ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted Apparently, yes. The developer at Omniture reviewed it and said my only problem was the way the passwordDigest was created. On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)] header) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Clojure 1.5 print-table, org-mode babel, and org-mode HTML gen
+1 for org-babel. I put together an example project solving the Potter Kata on github several months ago, so if someone is looking for some examples of how you might do LP with org-babel, take a look at it here: https://github.com/lambdatronic/org-babel-example Happy hacking, ~Gary On Sunday, March 3, 2013 6:03:51 PM UTC-5, greg r wrote: Here's a little project I worked on: https://github.com/Greg-R/incanterchartcustom I'm just now learning git, so I hope the files are intact in the repository. I cloned to another machine and they appear to be OK. The Incanter chart PDF document shows what is possible with regard to documenting code and showing a nice export result. The repository also includes the source .org file. In theory, if you have everything set up correctly you can reproduce the PDF document exactly. Since it is generating PDF charts, there are lots of side-effects and whatever directory you are running in will get filled up with the chart files. I used LaTeX snippets within the org file to include the chart graphics in the exported tex file and thus the eventual PDF. I don't use C-c C-e p. This doesn't always work, and I prefer C-c C-e l which exports the .tex file only. I open the .tex file with the Texworks application which has worked really well for me for editing LaTeX documents. Texworks has the ability to jump between the PDF and the .tex file and vice-versa, which makes troubleshooting much easier. I did a bunch of data processing for work using org, Clojure, and Incanter to produce reports in PDF. I created several Leiningen projects to attack various aspects of the data manipulation. Then within Clojure code blocks in org, the various namespaces are used to process data at the appropriate points in the document. None of the output was inserted directly into the org file. That turned out to be impractical as some of the generated documents were hundreds of pages long. The Clojure/Incanter code chunks generated .tex files which were included in the exported output via LaTeX code blocks. Really in this case the org-babel system operated more as a document/code organizer than as a programming system. But what an organizer it is!!! I saved hundreds, maybe thousands of man hours of manual document generating. There were several technologies to learn to get it all to work in harmony: Clojure Incanter Emacs (24.2) (including some Elisp in the .emacs file) org babel Leiningen LaTeX Texworks nrepl (this will require some extra stuff in the .emacs file to get babel to work) It took a lot of work, but I think the org-babel system is really worth it! Regards, Greg On Saturday, March 2, 2013 11:52:07 PM UTC-5, Mark C wrote: Worked like a charm. Thanks! Babel is fun. I really like the idea of being able to code in multiple languages in one document - and have return values from one feed another. And I just found out you can include TeX too - just starting to play with that. I'd love to hear more about how you use clojure and org mode together. Mark -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
Ah darn, thanks for the catch. The following is uglier but should work I guess. :\ digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update created-bytes) (.update secret-bytes))) On Mon, Mar 4, 2013 at 2:25 PM, Frank Siebenlist frank.siebenl...@gmail.com wrote: digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) There may be an issue with this snippet of code as .update does not return anything… i.e. nil. -FS. On Mar 4, 2013, at 11:06 AM, larry google groups lawrencecloj...@gmail.com wrote: ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted Apparently, yes. The developer at Omniture reviewed it and said my only problem was the way the passwordDigest was created. On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)] header) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
That should work. No need for .reset though as the initially constructed MessageDigest is already in its initial state. Be careful with .digest as it implicitly resets the MessageDigest, and calling it a second time gives you the digest of the initial state which is not what you want. (all that incidental complexity is why I started to write that functional interface ;-) ) -FS. On Mar 4, 2013, at 11:32 AM, Aaron Cohen aa...@assonance.org wrote: Ah darn, thanks for the catch. The following is uglier but should work I guess. :\ digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update created-bytes) (.update secret-bytes))) On Mon, Mar 4, 2013 at 2:25 PM, Frank Siebenlist frank.siebenl...@gmail.com wrote: digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) There may be an issue with this snippet of code as .update does not return anything… i.e. nil. -FS. On Mar 4, 2013, at 11:06 AM, larry google groups lawrencecloj...@gmail.com wrote: ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted Apparently, yes. The developer at Omniture reviewed it and said my only problem was the way the passwordDigest was created. On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)] header) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your
Re: how to get SHA1 of a string?
I have a feeling you may be correct, so I copy and pasted your code into mine: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api- credentials :shared-secret]) random-number (math/round (* (rand 1 ) 100)) nonce (DigestUtils/md5Hex (str random-number)) nonce-encoded-base64 (base64-encode (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM- dd'T'HH:mm:ss) created (.format date-formatter (new Date)) nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (- (java.security.MessageDigest/ getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes) .digest) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded- base64 \ Created=\ created \)] header) but now I get a null pointer exception here: digest (- (java.security.MessageDigest/ getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes) .digest) On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)] header) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
I'm not familiar with the class, but it seems that MessageDigest/getInstance might retrieve some shared instance that could theoretically need to be reset, no? On Mon, Mar 4, 2013 at 2:43 PM, Frank Siebenlist frank.siebenl...@gmail.com wrote: That should work. No need for .reset though as the initially constructed MessageDigest is already in its initial state. Be careful with .digest as it implicitly resets the MessageDigest, and calling it a second time gives you the digest of the initial state which is not what you want. (all that incidental complexity is why I started to write that functional interface ;-) ) -FS. On Mar 4, 2013, at 11:32 AM, Aaron Cohen aa...@assonance.org wrote: Ah darn, thanks for the catch. The following is uglier but should work I guess. :\ digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update created-bytes) (.update secret-bytes))) On Mon, Mar 4, 2013 at 2:25 PM, Frank Siebenlist frank.siebenl...@gmail.com wrote: digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) There may be an issue with this snippet of code as .update does not return anything… i.e. nil. -FS. On Mar 4, 2013, at 11:06 AM, larry google groups lawrencecloj...@gmail.com wrote: ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted Apparently, yes. The developer at Omniture reviewed it and said my only problem was the way the passwordDigest was created. On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)] header) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to
Re: why do I get Null pointer on this GMT SimpleDateFormat?
You've assigned to date-formatter-set-to-gmt-time the return value from the setTimeZone method call. This method returns null, hence the null pointer exception when you try to call the format method. 'doto' might help here, like: (let [gmt-date-formatter (doto (SimpleDateFormat. -MMM-dd HH:mm:ss) (.setTimeZone (TimeZone/getTimeZone GMT)))] (.format gmt-date-formatter (Date.))) On 4 March 2013 16:50, larry google groups lawrencecloj...@gmail.com wrote: I need to get a GMT date. I found this page on StackOverflow: http://stackoverflow.com/questions/308683/how-can-i-get-the-current-date-and-time-in-utc-or-gmt-in-java It gives this example: SimpleDateFormat dateFormatGmt = new SimpleDateFormat(-MMM-dd HH:mm:ss); dateFormatGmt.setTimeZone(TimeZone.getTimeZone(GMT)); I thought I was following it closely with (this is inside of a (let) statement): date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) gmt-timezone (TimeZone/getTimeZone GMT) date-formatter-set-to-gmt-time (.setTimeZone date-formatter gmt- timezone) created (.format date-formatter-set-to-gmt-time (new Date)) but this line: created (.format date-formatter-set-to-gmt-time (new Date)) gives me: java.lang.NullPointerException: null Reflector.java:26 clojure.lang.Reflector.invokeInstanceMethod omniture.clj:52 mpdv-clojure.omniture/omniture-make-headers- for-api-call Can anyone tell me why? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
You should get a new, separate instance for every digest you would like to generate concurrently. Nothing, i.e. no mutable state, is shared between different MessageDigest instances in the subsequent digesting/secure-hashing. The .reset is only used if you want to give up you current effort without generating the final digest with .digest as the latter already does the reset implicitly. After the reset you can reuse that same MessageDigest object for a new digest. You can optionally .clone a MessageDigest object is you want to have a final digest value for a partial byte-list. For example, if you want the digest for both a and abc, you could take a new MessageDigest object, .update it for a's bytes, .clone that MessageDigest, use one copy to generate the final .digest for a, and use the other copy to add the digest of bc's bytes and .digest that. Ough… hope that's clear... -FS. On Mar 4, 2013, at 12:15 PM, Aaron Cohen aa...@assonance.org wrote: I'm not familiar with the class, but it seems that MessageDigest/getInstance might retrieve some shared instance that could theoretically need to be reset, no? On Mon, Mar 4, 2013 at 2:43 PM, Frank Siebenlist frank.siebenl...@gmail.com wrote: That should work. No need for .reset though as the initially constructed MessageDigest is already in its initial state. Be careful with .digest as it implicitly resets the MessageDigest, and calling it a second time gives you the digest of the initial state which is not what you want. (all that incidental complexity is why I started to write that functional interface ;-) ) -FS. On Mar 4, 2013, at 11:32 AM, Aaron Cohen aa...@assonance.org wrote: Ah darn, thanks for the catch. The following is uglier but should work I guess. :\ digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update created-bytes) (.update secret-bytes))) On Mon, Mar 4, 2013 at 2:25 PM, Frank Siebenlist frank.siebenl...@gmail.com wrote: digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) There may be an issue with this snippet of code as .update does not return anything… i.e. nil. -FS. On Mar 4, 2013, at 11:06 AM, larry google groups lawrencecloj...@gmail.com wrote: ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted Apparently, yes. The developer at Omniture reviewed it and said my only problem was the way the passwordDigest was created. On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)] header) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more
Clojurescript bug
Hello, I have just been stuck for ages trying to figure out what was going on in my first clojurescript application and think I have found a bug. I took some working game playing code for a simple tictactoe example and found that I got incorrectly names JS outputted I have created a project with as little clutter as possible. The cljs I am runing is at https://github.com/thattommyhall/cljs-bug/blob/master/src/cljs/aima-clojure/games/tictactoe-frontend.cljs and the commit that fixes it is https://github.com/thattommyhall/cljs-bug/commit/f80cdc4e97f94a6228ecf33d58d489af5de56245 It seems to generate game.aima - clojure$game$Game$moves$arity$2 (ie a subtraction operator) as you can see in the diff. I worked around it for now by adding an alias (def moves game/moves) outside and calling that rather than calling game/moves inside the function. Pretty sure this is a cljs bug as the clj tests run ok either way. Cheers, Tom -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
To be clear about an earlier point, if I do this: digest-as-string (apply str nonce created secret) and then print this to the terminal, I can see it really is just a string made of these 3 items. Just a plain string, exactly what I assumed. On Mar 4, 2:25 pm, Frank Siebenlist frank.siebenl...@gmail.com wrote: digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) There may be an issue with this snippet of code as .update does not return anything… i.e. nil. -FS. On Mar 4, 2013, at 11:06 AM, larry google groups lawrencecloj...@gmail.com wrote: ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted Apparently, yes. The developer at Omniture reviewed it and said my only problem was the way the passwordDigest was created. On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)] header) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visithttps://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: why do I get Null pointer on this GMT SimpleDateFormat?
Thank you. That is very helpful. On Mar 4, 3:17 pm, Ray Miller r...@1729.org.uk wrote: You've assigned to date-formatter-set-to-gmt-time the return value from the setTimeZone method call. This method returns null, hence the null pointer exception when you try to call the format method. 'doto' might help here, like: (let [gmt-date-formatter (doto (SimpleDateFormat. -MMM-dd HH:mm:ss) (.setTimeZone (TimeZone/getTimeZone GMT)))] (.format gmt-date-formatter (Date.))) On 4 March 2013 16:50, larry google groups lawrencecloj...@gmail.com wrote: I need to get a GMT date. I found this page on StackOverflow: http://stackoverflow.com/questions/308683/how-can-i-get-the-current-d... It gives this example: SimpleDateFormat dateFormatGmt = new SimpleDateFormat(-MMM-dd HH:mm:ss); dateFormatGmt.setTimeZone(TimeZone.getTimeZone(GMT)); I thought I was following it closely with (this is inside of a (let) statement): date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) gmt-timezone (TimeZone/getTimeZone GMT) date-formatter-set-to-gmt-time (.setTimeZone date-formatter gmt- timezone) created (.format date-formatter-set-to-gmt-time (new Date)) but this line: created (.format date-formatter-set-to-gmt-time (new Date)) gives me: java.lang.NullPointerException: null Reflector.java:26 clojure.lang.Reflector.invokeInstanceMethod omniture.clj:52 mpdv-clojure.omniture/omniture-make-headers- for-api-call Can anyone tell me why? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visithttps://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
Frank pointed out this mistake in my code a little farther in the thread. Sorry for the confusion. digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes))) On Mon, Mar 4, 2013 at 3:07 PM, larry google groups lawrencecloj...@gmail.com wrote: I have a feeling you may be correct, so I copy and pasted your code into mine: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api- credentials :shared-secret]) random-number (math/round (* (rand 1 ) 100)) nonce (DigestUtils/md5Hex (str random-number)) nonce-encoded-base64 (base64-encode (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM- dd'T'HH:mm:ss) created (.format date-formatter (new Date)) nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (- (java.security.MessageDigest/ getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes) .digest) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded- base64 \ Created=\ created \)] header) but now I get a null pointer exception here: digest (- (java.security.MessageDigest/ getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes) .digest) On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)] header) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en ---
Re: how to get SHA1 of a string?
I keep trying different things, but I feel like I'm missing some obvious mistake. Right now my code includes this function: (defn sha1 [string] ;; 2013-03-04 - this function comes from here: ;; https://github.com/dmitriy-kiriyenko/clojure-api-quiz/blob/master/src/clojure_api_quiz/sha1_url.clj (apply str (map (partial format %02x) (.digest (doto (java.security.MessageDigest/getInstance SHA-1) .reset (.update (.getBytes string))) And then I create the headers like this: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api- credentials :shared-secret]) random-number (math/round (* (rand 1 ) 100)) nonce (DigestUtils/md5Hex (str random-number)) nonce-encoded-base64 (base64-encode (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM- dd'T'HH:mm:ss) created (.format date-formatter (new Date)) digest-as-string (apply str nonce created secret) digest (sha1 digest-as-string) digest-base64 (base64-encode (.getBytes digest)) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest-base64 \ Nonce=\ nonce- encoded-base64 \ Created=\ created \)] header) Which gives me, in part: PasswordDigest=ZDk4NGZlMjgxMDZhMWIxZjZmZGMzYWYwZTY5Mjc1YTY\ xNjc1ODA0Yg== Nonce=ODlmOTY5MGRkMTczZTlkMDU4ZWY0M2JkYTQ5NjFmMzc= Which still fails to correctly authenticate. On Mar 4, 10:47 am, larry google groups lawrencecloj...@gmail.com wrote: I have been having problems making an API call to Omniture. I have exchanged a dozen emails with a developer at Omniture, and he gave me the impression that I was constructing my security codes incorrectly. So now I am confronting my ignorance over how Java handles certain conversions. The developer at Omniture sent me this explanation in an email: The security digest is formed from a sha1 hash of the following string concatenation: digest = sha1( Binary Nonce + Created Time String + API Secret Hex String (32 bytes) ) I have been struggling with this for several days and I have tried at least (literally) 200 variations on this bit of code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api- credentials :shared-secret]) nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM- dd'T'HH:mm:ss'Z') created (.format date-formatter (new Date)) digest-as-string (apply str (.getBytes nonce) created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) digest-as-string) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \)] header) This version gives me: Exception in the main function: #ClassCastException java.lang.ClassCastException: java.lang.String cannot be cast to [B For a long time I was using this for the last 3 lines: digest-as-string (apply str nonce created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) (.getByes digest-as-string)) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \) Here I wrapped the whole digest-as-string in (.getBytes) so there was no Java error, but this simply did not work when I pinged Omniture. In his email, he seems to suggest that the nonce should be binary but that the date and the secret should be strings: digest = sha1( Binary Nonce + Created Time String + API Secret Hex String (32 bytes) ) But, as I said, when I tried this I got the ClassCastException. No doubt some of my confusion is due to my ignorance of Java. I was able to take their sample PHP code and get that to successfully ping their API, however, my company has an official policy of moving to the JVM, and of course I have a personal preference to work with Clojure. So I'd like to figure out how to get this to work in Clojure. (Needless to say that Omniture doesn't offer sample code in Clojure.) I have been using clj-http to make the actual POST calls to Omniture. Since I am on a Mac, I have been using the excellent Charles network debugger (http://www.charlesproxy.com/) to watch the actual posts being made. Everything looks correct, except that in the end the requests fails, apparently because the digest is malformed. Any suggestions? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send
Re: how to get SHA1 of a string?
Hi Larry, One approach that helps a lot when trying to figure out where the issue is with all that message digesting, is by using well-known test cases. If you look at: http://en.wikipedia.org/wiki/SHA-1 you will find the test cases: SHA1(The quick brown fox jumps over the lazy dog) = 2fd4e1c6 7a2d28fc ed849ee1 bb76e739 1b93eb12 and SHA1() = da39a3ee 5e6b4b0d 3255bfef 95601890 afd80709 If you split up your nonce created secret as partial strings of The quick brown fox jumps over the lazy dog, then you know what hex'ified digest to expect, and helps you to track-down/eliminate errors. The empty string digest is also important to have, because the initial MessageDigest object, or any reset one, or after a call to .digest, will generate that particular digest value. In other words, if you see that digest then you're probably working with a (accidentally?) reset MessageDigest object. Hope that helps. -FrankS. On Mar 4, 2013, at 12:38 PM, larry google groups lawrencecloj...@gmail.com wrote: To be clear about an earlier point, if I do this: digest-as-string (apply str nonce created secret) and then print this to the terminal, I can see it really is just a string made of these 3 items. Just a plain string, exactly what I assumed. On Mar 4, 2:25 pm, Frank Siebenlist frank.siebenl...@gmail.com wrote: digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) There may be an issue with this snippet of code as .update does not return anything… i.e. nil. -FS. On Mar 4, 2013, at 11:06 AM, larry google groups lawrencecloj...@gmail.com wrote: ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted Apparently, yes. The developer at Omniture reviewed it and said my only problem was the way the passwordDigest was created. On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)] header) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visithttps://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe
Re: how to get SHA1 of a string?
Thank you for the suggestions. If I do this: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api- credentials :shared-secret]) random-number (math/round (* (rand 1 ) 100)) nonce (DigestUtils/md5Hex (str random-number)) nonce-encoded-base64 (base64-encode (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM- dd'T'HH:mm:ss) created (.format date-formatter (new Date)) nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (.digest (doto (java.security.MessageDigest/ getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as- bytes))) ;; ;;digest-base64 (base64-encode (.getBytes digest)) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded- base64 \ Created=\ created \)] header) I end up with, in part: PasswordDigest=[B@26f7b2f4 Nonce=Y2MwN2JiYzA5MDlmZjE2ZjExMGYzMjRhODA2Yjc5ODc= Created=2013-03-04T15:57:52 Which I think is still incorrect. I also tried this with the PasswordDigest base64 encoded, and that did not work either. On Mar 4, 2:43 pm, Frank Siebenlist frank.siebenl...@gmail.com wrote: That should work. No need for .reset though as the initially constructed MessageDigest is already in its initial state. Be careful with .digest as it implicitly resets the MessageDigest, and calling it a second time gives you the digest of the initial state which is not what you want. (all that incidental complexity is why I started to write that functional interface ;-) ) -FS. On Mar 4, 2013, at 11:32 AM, Aaron Cohen aa...@assonance.org wrote: Ah darn, thanks for the catch. The following is uglier but should work I guess. :\ digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update created-bytes) (.update secret-bytes))) On Mon, Mar 4, 2013 at 2:25 PM, Frank Siebenlist frank.siebenl...@gmail.com wrote: digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) There may be an issue with this snippet of code as .update does not return anything… i.e. nil. -FS. On Mar 4, 2013, at 11:06 AM, larry google groups lawrencecloj...@gmail.com wrote: ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted Apparently, yes. The developer at Omniture reviewed it and said my only problem was the way the passwordDigest was created. On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)]
Re: how to get SHA1 of a string?
.digest returns a byte array - so your PasswordDigest value is unprintable and is not fit for any header/URL. Not sure what this base64-encode function does exactly, but normally base64 encoding takes a bunch of bytes already, so the (commented-out) digest-base64 (base64-encode (.getBytes digest)) does not need the (.getBytes …) transformation as your digest consists already of bytes. Note that base64 encoded stuff is not url/html safe and has to be encoded also before sending it over the http-wire. -FS. On Mar 4, 2013, at 1:00 PM, larry google groups lawrencecloj...@gmail.com wrote: Thank you for the suggestions. If I do this: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api- credentials :shared-secret]) random-number (math/round (* (rand 1 ) 100)) nonce (DigestUtils/md5Hex (str random-number)) nonce-encoded-base64 (base64-encode (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM- dd'T'HH:mm:ss) created (.format date-formatter (new Date)) nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (.digest (doto (java.security.MessageDigest/ getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as- bytes))) ;; ;;digest-base64 (base64-encode (.getBytes digest)) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded- base64 \ Created=\ created \)] header) I end up with, in part: PasswordDigest=[B@26f7b2f4 Nonce=Y2MwN2JiYzA5MDlmZjE2ZjExMGYzMjRhODA2Yjc5ODc= Created=2013-03-04T15:57:52 Which I think is still incorrect. I also tried this with the PasswordDigest base64 encoded, and that did not work either. On Mar 4, 2:43 pm, Frank Siebenlist frank.siebenl...@gmail.com wrote: That should work. No need for .reset though as the initially constructed MessageDigest is already in its initial state. Be careful with .digest as it implicitly resets the MessageDigest, and calling it a second time gives you the digest of the initial state which is not what you want. (all that incidental complexity is why I started to write that functional interface ;-) ) -FS. On Mar 4, 2013, at 11:32 AM, Aaron Cohen aa...@assonance.org wrote: Ah darn, thanks for the catch. The following is uglier but should work I guess. :\ digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update created-bytes) (.update secret-bytes))) On Mon, Mar 4, 2013 at 2:25 PM, Frank Siebenlist frank.siebenl...@gmail.com wrote: digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) There may be an issue with this snippet of code as .update does not return anything… i.e. nil. -FS. On Mar 4, 2013, at 11:06 AM, larry google groups lawrencecloj...@gmail.com wrote: ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted Apparently, yes. The developer at Omniture reviewed it and said my only problem was the way the passwordDigest was created. On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes)
Re: how to get SHA1 of a string?
Be careful with .digest as it implicitly resets the MessageDigest, and calling it a second time gives you the digest of the initial state which is not what you want. I am somewhat ignorant of how mutable Java variables behave inside of Clojure. Can I assume that the instance of MessageDigest disappears as soon as the function returns? If I call the function again, I am creating a new instance MessageDigest, and so I don't have to worry about calling .digest()? On Mar 4, 2:43 pm, Frank Siebenlist frank.siebenl...@gmail.com wrote: That should work. No need for .reset though as the initially constructed MessageDigest is already in its initial state. Be careful with .digest as it implicitly resets the MessageDigest, and calling it a second time gives you the digest of the initial state which is not what you want. (all that incidental complexity is why I started to write that functional interface ;-) ) -FS. On Mar 4, 2013, at 11:32 AM, Aaron Cohen aa...@assonance.org wrote: Ah darn, thanks for the catch. The following is uglier but should work I guess. :\ digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update created-bytes) (.update secret-bytes))) On Mon, Mar 4, 2013 at 2:25 PM, Frank Siebenlist frank.siebenl...@gmail.com wrote: digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) There may be an issue with this snippet of code as .update does not return anything… i.e. nil. -FS. On Mar 4, 2013, at 11:06 AM, larry google groups lawrencecloj...@gmail.com wrote: ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted Apparently, yes. The developer at Omniture reviewed it and said my only problem was the way the passwordDigest was created. On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)] header) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visithttps://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more
Re: Clojure 1.5 print-table, org-mode babel, and org-mode HTML gen
Very cool. Great looking doc! I just installed LaTeX and TeXworks so it's off to play. (Other than incanter I already have the rest working, including nrepl - though I have to start up nrepl with nrepl-jack-in. Is that what you were planning on doing? It would be cool to have it launched by the first compile!). On Sunday, March 3, 2013 6:03:51 PM UTC-5, greg r wrote: Here's a little project I worked on: https://github.com/Greg-R/incanterchartcustom I'm just now learning git, so I hope the files are intact in the repository. I cloned to another machine and they appear to be OK. The Incanter chart PDF document shows what is possible with regard to documenting code and showing a nice export result. The repository also includes the source .org file. In theory, if you have everything set up correctly you can reproduce the PDF document exactly. Since it is generating PDF charts, there are lots of side-effects and whatever directory you are running in will get filled up with the chart files. I used LaTeX snippets within the org file to include the chart graphics in the exported tex file and thus the eventual PDF. I don't use C-c C-e p. This doesn't always work, and I prefer C-c C-e l which exports the .tex file only. I open the .tex file with the Texworks application which has worked really well for me for editing LaTeX documents. Texworks has the ability to jump between the PDF and the .tex file and vice-versa, which makes troubleshooting much easier. I did a bunch of data processing for work using org, Clojure, and Incanter to produce reports in PDF. I created several Leiningen projects to attack various aspects of the data manipulation. Then within Clojure code blocks in org, the various namespaces are used to process data at the appropriate points in the document. None of the output was inserted directly into the org file. That turned out to be impractical as some of the generated documents were hundreds of pages long. The Clojure/Incanter code chunks generated .tex files which were included in the exported output via LaTeX code blocks. Really in this case the org-babel system operated more as a document/code organizer than as a programming system. But what an organizer it is!!! I saved hundreds, maybe thousands of man hours of manual document generating. There were several technologies to learn to get it all to work in harmony: Clojure Incanter Emacs (24.2) (including some Elisp in the .emacs file) org babel Leiningen LaTeX Texworks nrepl (this will require some extra stuff in the .emacs file to get babel to work) It took a lot of work, but I think the org-babel system is really worth it! Regards, Greg On Saturday, March 2, 2013 11:52:07 PM UTC-5, Mark C wrote: Worked like a charm. Thanks! Babel is fun. I really like the idea of being able to code in multiple languages in one document - and have return values from one feed another. And I just found out you can include TeX too - just starting to play with that. I'd love to hear more about how you use clojure and org mode together. Mark -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
Yup, in your case, with: digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update created-bytes) (.update secret-bytes))) you do not have to worry about calling .digest twice on the same instance. -FS. On Mar 4, 2013, at 1:22 PM, larry google groups lawrencecloj...@gmail.com wrote: Be careful with .digest as it implicitly resets the MessageDigest, and calling it a second time gives you the digest of the initial state which is not what you want. I am somewhat ignorant of how mutable Java variables behave inside of Clojure. Can I assume that the instance of MessageDigest disappears as soon as the function returns? If I call the function again, I am creating a new instance MessageDigest, and so I don't have to worry about calling .digest()? On Mar 4, 2:43 pm, Frank Siebenlist frank.siebenl...@gmail.com wrote: That should work. No need for .reset though as the initially constructed MessageDigest is already in its initial state. Be careful with .digest as it implicitly resets the MessageDigest, and calling it a second time gives you the digest of the initial state which is not what you want. (all that incidental complexity is why I started to write that functional interface ;-) ) -FS. On Mar 4, 2013, at 11:32 AM, Aaron Cohen aa...@assonance.org wrote: Ah darn, thanks for the catch. The following is uglier but should work I guess. :\ digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update created-bytes) (.update secret-bytes))) On Mon, Mar 4, 2013 at 2:25 PM, Frank Siebenlist frank.siebenl...@gmail.com wrote: digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) There may be an issue with this snippet of code as .update does not return anything… i.e. nil. -FS. On Mar 4, 2013, at 11:06 AM, larry google groups lawrencecloj...@gmail.com wrote: ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted Apparently, yes. The developer at Omniture reviewed it and said my only problem was the way the passwordDigest was created. On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)] header) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visithttps://groups.google.com/groups/opt_out. -- --
Re: how to get SHA1 of a string?
I finally got this to work. Many thanks for all of the help that I was given here. The final, winning combination was: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) random-number (math/round (* (rand 1 ) 100)) nonce (DigestUtils/md5Hex (str random-number)) nonce-encoded-base64 (base64-encode (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) created (.format date-formatter (new Date)) nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes))) digest-base64 (base64-encode digest) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest-base64 \ Nonce=\ nonce-encoded-base64 \ Created=\ created \)] header) On Mar 4, 10:47 am, larry google groups lawrencecloj...@gmail.com wrote: I have been having problems making an API call to Omniture. I have exchanged a dozen emails with a developer at Omniture, and he gave me the impression that I was constructing my security codes incorrectly. So now I am confronting my ignorance over how Java handles certain conversions. The developer at Omniture sent me this explanation in an email: The security digest is formed from a sha1 hash of the following string concatenation: digest = sha1( Binary Nonce + Created Time String + API Secret Hex String (32 bytes) ) I have been struggling with this for several days and I have tried at least (literally) 200 variations on this bit of code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api- credentials :shared-secret]) nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM- dd'T'HH:mm:ss'Z') created (.format date-formatter (new Date)) digest-as-string (apply str (.getBytes nonce) created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) digest-as-string) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \)] header) This version gives me: Exception in the main function: #ClassCastException java.lang.ClassCastException: java.lang.String cannot be cast to [B For a long time I was using this for the last 3 lines: digest-as-string (apply str nonce created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) (.getByes digest-as-string)) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \) Here I wrapped the whole digest-as-string in (.getBytes) so there was no Java error, but this simply did not work when I pinged Omniture. In his email, he seems to suggest that the nonce should be binary but that the date and the secret should be strings: digest = sha1( Binary Nonce + Created Time String + API Secret Hex String (32 bytes) ) But, as I said, when I tried this I got the ClassCastException. No doubt some of my confusion is due to my ignorance of Java. I was able to take their sample PHP code and get that to successfully ping their API, however, my company has an official policy of moving to the JVM, and of course I have a personal preference to work with Clojure. So I'd like to figure out how to get this to work in Clojure. (Needless to say that Omniture doesn't offer sample code in Clojure.) I have been using clj-http to make the actual POST calls to Omniture. Since I am on a Mac, I have been using the excellent Charles network debugger (http://www.charlesproxy.com/) to watch the actual posts being made. Everything looks correct, except that in the end the requests fails, apparently because the digest is malformed. Any suggestions? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit
Re: Java interop: Can't call public method of non-public class
I think not. But upgrading to clojure 1.5 will do.
On Friday, March 1, 2013 1:20:57 PM UTC+4, Marko Topolnik wrote:
I'd say it's a bug. You are invoking a public class's method, which
happens to be inherited from a package-private class. Clojure's reflective
code accesses the superclass method directly so there's no distinction
between direct invocation and invocation through inheritance.
If you are interseted in a workaround, type-hinting the code will work (my
guess).
On Friday, March 1, 2013 10:13:57 AM UTC+1, bsmith.occs wrote:
Simplified, from a more complex example:
abstract class Bytes {
public toHexString() { return ...; }
Bytes { }
}
public class Hash extends Bytes {
public Hash() { super(); }
}
This works in Java:
new Hash().toHexString();
This fails in Clojure:
(.toHexString (Hash.))
IllegalArgumentException Can't call public method of non-public class:
public final java.lang.String at.gv.brz.bjuvj.hashpass.Bytes.toHexString()
clojure.lang.Reflector.invokeMatchingMethod (Reflector.java:88)
Bug?
// ben
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Re: Clojure 1.5 print-table, org-mode babel, and org-mode HTML gen
This is a very helpful example. Along similar lines, I was thinking it would be cool to have a document of 4clojure problems/solutions/tests. I haven't used tangle/weave yet, which would be pretty useful for that. I think it would be a great learning resource to create an org-based book of best of idiomatic Clojure solutions to all 4clojure (or Euler) problems and solutions. As long as you don't get too mired in what constitutes best :) Btw, it would be interesting to see the resulting pdf from you Kata doc.. M. On Monday, March 4, 2013 2:25:42 PM UTC-5, Gary Johnson wrote: +1 for org-babel. I put together an example project solving the Potter Kata on github several months ago, so if someone is looking for some examples of how you might do LP with org-babel, take a look at it here: https://github.com/lambdatronic/org-babel-example Happy hacking, ~Gary On Sunday, March 3, 2013 6:03:51 PM UTC-5, greg r wrote: Here's a little project I worked on: https://github.com/Greg-R/incanterchartcustom I'm just now learning git, so I hope the files are intact in the repository. I cloned to another machine and they appear to be OK. The Incanter chart PDF document shows what is possible with regard to documenting code and showing a nice export result. The repository also includes the source .org file. In theory, if you have everything set up correctly you can reproduce the PDF document exactly. Since it is generating PDF charts, there are lots of side-effects and whatever directory you are running in will get filled up with the chart files. I used LaTeX snippets within the org file to include the chart graphics in the exported tex file and thus the eventual PDF. I don't use C-c C-e p. This doesn't always work, and I prefer C-c C-e l which exports the .tex file only. I open the .tex file with the Texworks application which has worked really well for me for editing LaTeX documents. Texworks has the ability to jump between the PDF and the .tex file and vice-versa, which makes troubleshooting much easier. I did a bunch of data processing for work using org, Clojure, and Incanter to produce reports in PDF. I created several Leiningen projects to attack various aspects of the data manipulation. Then within Clojure code blocks in org, the various namespaces are used to process data at the appropriate points in the document. None of the output was inserted directly into the org file. That turned out to be impractical as some of the generated documents were hundreds of pages long. The Clojure/Incanter code chunks generated .tex files which were included in the exported output via LaTeX code blocks. Really in this case the org-babel system operated more as a document/code organizer than as a programming system. But what an organizer it is!!! I saved hundreds, maybe thousands of man hours of manual document generating. There were several technologies to learn to get it all to work in harmony: Clojure Incanter Emacs (24.2) (including some Elisp in the .emacs file) org babel Leiningen LaTeX Texworks nrepl (this will require some extra stuff in the .emacs file to get babel to work) It took a lot of work, but I think the org-babel system is really worth it! Regards, Greg On Saturday, March 2, 2013 11:52:07 PM UTC-5, Mark C wrote: Worked like a charm. Thanks! Babel is fun. I really like the idea of being able to code in multiple languages in one document - and have return values from one feed another. And I just found out you can include TeX too - just starting to play with that. I'd love to hear more about how you use clojure and org mode together. Mark -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
Glad Larry has working code now... As I mentioned before in this thread, I'm working on this functional interface for the message-digesting/secure-hashing, and this whole discussion reads like a use case for the why? ;-) It proofs to me that there may be real value in a more user-friendly approach than the one offered by java.security.MessageDigest. So instead of writing: (let [... nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes))) …] my library lets you write: (let [… digest (md/digest :sha-1 :utf-8 nonce created secret) …] and the advantages of the more functional approach is much more than just saving a few lines of code! Although it still needs some more work, any feedback on https://github.com/franks42/clj.security.message-digest; is much appreciated. Regards, FrankS. On Mar 4, 2013, at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: I finally got this to work. Many thanks for all of the help that I was given here. The final, winning combination was: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) random-number (math/round (* (rand 1 ) 100)) nonce (DigestUtils/md5Hex (str random-number)) nonce-encoded-base64 (base64-encode (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) created (.format date-formatter (new Date)) nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes))) digest-base64 (base64-encode digest) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest-base64 \ Nonce=\ nonce-encoded-base64 \ Created=\ created \)] header) On Mar 4, 10:47 am, larry google groups lawrencecloj...@gmail.com wrote: I have been having problems making an API call to Omniture. I have exchanged a dozen emails with a developer at Omniture, and he gave me the impression that I was constructing my security codes incorrectly. So now I am confronting my ignorance over how Java handles certain conversions. The developer at Omniture sent me this explanation in an email: The security digest is formed from a sha1 hash of the following string concatenation: digest = sha1( Binary Nonce + Created Time String + API Secret Hex String (32 bytes) ) I have been struggling with this for several days and I have tried at least (literally) 200 variations on this bit of code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api- credentials :shared-secret]) nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM- dd'T'HH:mm:ss'Z') created (.format date-formatter (new Date)) digest-as-string (apply str (.getBytes nonce) created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) digest-as-string) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \)] header) This version gives me: Exception in the main function: #ClassCastException java.lang.ClassCastException: java.lang.String cannot be cast to [B For a long time I was using this for the last 3 lines: digest-as-string (apply str nonce created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) (.getByes digest-as-string)) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \) Here I wrapped the whole digest-as-string in (.getBytes) so there was no Java error, but this simply did not work when I pinged Omniture. In his email, he seems to suggest that the nonce should be binary but that the date and the secret should be strings: digest = sha1( Binary Nonce + Created Time String + API Secret Hex String (32 bytes) ) But, as I said, when I tried this I got the ClassCastException. No doubt some of my confusion is due to my ignorance of Java. I was able to take their sample PHP code and get that to successfully ping
Re: how to get SHA1 of a string?
On Monday, March 4, 2013 10:54:13 PM UTC+4, larry google groups wrote: Right now I am using this block of code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) random-number (math/round (* (rand 1 ) 100)) nonce (DigestUtils/md5Hex (str random-number)) nonce-encoded-base64 (Base64/encodeBase64String (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) created (.format date-formatter (new Date)) digest-as-string (apply str nonce created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) (.getBytes digest-as-string)) digest-base64 (Base64/encodeBase64String digest) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest-base64 \ Nonce=\ nonce-encoded-base64 \ Created=\ created \)] header) And I get output that contains an equal sign, which I think is suspect: PasswordDigest=r+HWjSAk8AUvo/QmKKfbqQFnJ18= Nonce=NmQxNGUwZjVlMjFhYjE1MzQ4MjUxYTA1MTg1YzE3ZTg= The developer at Omniture reminded me of the characters allowed into Base64: You can tell a given string is base64 encoded because it can only have 64 specific characters in the string: A-Z a-z 0-9 + / That's 26 + 26 + 10 + 2 = 64 http://en.wikipedia.org/wiki/Base64 I assume that means that if I see a = in the string, then it is not really Base64 encoded? It is. See http://en.wikipedia.org/wiki/Base64 , the Padding section. On Mar 4, 1:43 pm, Craig Brozefsky cr...@red-bean.com wrote: Craig Brozefsky cr...@red-bean.com writes: .. Sorry, didn't reaze you wanted the output to be base64 encoded, in which case, add these funcs: (defn base64-encode [^bytes v] (javax.xml.bind.DatatypeConverter/printBase64Binary v)) (defn sha1-base64 [^String v] (- (.getBytes v) (sha1) (base64-encode))) -- Craig Brozefsky cr...@red-bean.com Premature reification is the root of all evil -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Faster lein
On Mon, Mar 4, 2013 at 10:30 AM, Phil Hagelberg p...@hagelb.org wrote: Buck Golemon writes: I take this to mean that there's no widely accepted solution. The widely-accepted solution is to leave a single process running. It certainly has limitations, but it's the way most people deal with the problem. Thanks Phil! I posted this question earlier, but it may have gotten lost. I'm quite interested in the interactive session option, but none of the mechanics are described. How would I do the equivalent of `lein run` or `line cljs autobuild` in the repl? Did I miss this in the docs somewhere? It's also quite possible that it's an obvious feature of lisp/clojure that I don't know as a newbie. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: printing and reading functions
Dave Sann writes: Is there an Jira issue for this? Is it worth raising one? I don't follow Clojure development much these days, but I do recall Rich's Conj keynote a couple years ago mentioning an interest in dynamicity knobs that let you tune space/perf vs feature trade-offs. But that doesn't mean you'll actually get a response if you open an issue. Depends on your tolerance for Jira I guess. I noted that my requirement is slightly different from yours. I want to print the function by name (and namespace) only. Serializable-fn prints the full definition. But this difference is only in print-method - if the meta-data were available on the function, both would be possible depending on need. Yep, the end result is different, but the strategy of replacing a clojure.core var with a version that gives enhanced metadata and checking it from print-meta could be applied, though it has the same drawback of not applying to defns that are unaware of it. -Phil -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
If you split up your nonce created secret as partial strings of The quick brown fox jumps over the lazy dog, then you know what hex'ified digest to expect, and helps you to track-down/eliminate errors. That is a good tip and I'll use it in the future. On Mar 4, 3:58 pm, Frank Siebenlist frank.siebenl...@gmail.com wrote: Hi Larry, One approach that helps a lot when trying to figure out where the issue is with all that message digesting, is by using well-known test cases. If you look at: http://en.wikipedia.org/wiki/SHA-1 you will find the test cases: SHA1(The quick brown fox jumps over the lazy dog) = 2fd4e1c6 7a2d28fc ed849ee1 bb76e739 1b93eb12 and SHA1() = da39a3ee 5e6b4b0d 3255bfef 95601890 afd80709 If you split up your nonce created secret as partial strings of The quick brown fox jumps over the lazy dog, then you know what hex'ified digest to expect, and helps you to track-down/eliminate errors. The empty string digest is also important to have, because the initial MessageDigest object, or any reset one, or after a call to .digest, will generate that particular digest value. In other words, if you see that digest then you're probably working with a (accidentally?) reset MessageDigest object. Hope that helps. -FrankS. On Mar 4, 2013, at 12:38 PM, larry google groups lawrencecloj...@gmail.com wrote: To be clear about an earlier point, if I do this: digest-as-string (apply str nonce created secret) and then print this to the terminal, I can see it really is just a string made of these 3 items. Just a plain string, exactly what I assumed. On Mar 4, 2:25 pm, Frank Siebenlist frank.siebenl...@gmail.com wrote: digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) There may be an issue with this snippet of code as .update does not return anything… i.e. nil. -FS. On Mar 4, 2013, at 11:06 AM, larry google groups lawrencecloj...@gmail.com wrote: ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted Apparently, yes. The developer at Omniture reviewed it and said my only problem was the way the passwordDigest was created. On Mar 4, 2:02 pm, Aaron Cohen aa...@assonance.org wrote: I think you should try to avoid the string concatenation games. I'm not sure what your current code is, but I suspect you're still ending up with array toString's slipping in. How about the following? On Mon, Mar 4, 2013 at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: So, right now I am using this code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) nonce (DigestUtils/md5Hex (str (math/round (* (rand 1 ) 100 nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) formatter gmt-timezone) created (.format date-formatter (new Date)) nonce-bytes (.getBytes nonce) created-bytes (.getBytes created) secret-bytes (.getBytes secret) digest (- (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-bytes) (.update create-bytes) (.update secret-bytes) .digest) digest-base64 (Base64/encodeBase64 digest) ;; Should UsernameToken Username really be unquoted in the following line? ;; All the other variable names are quoted header (apply str UsernameToken Username=\ username ;; You may want digest-base64 here? \PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \Created=\ created \)] header) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visithttps://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to
Re: how to get SHA1 of a string?
Note that base64 encoded stuff is not url/html safe and has to be encoded also
before sending it over the http-wire.
Hmm, interesting. This is going as the headers in a POST. It did seem
to work the last time I ran it, just now, a few minutes ago.
I am using the clj-http library and my actual POST function is:
(defn omniture-call-api [url-with-queue-method api-payload headers]
(timbre/spy :debug return value of omniture-call-api
(try+
(http-client/post url-with-queue-method
{:body api-payload
:debug true
:debug-body true
:insecure true
:headers {X-Api-Version 2
X-WSSE headers}
:content-type :json
:socket-timeout 4000
:conn-timeout 4000
:accept :json
:client-params
{http.protocol.allow-circular-redirects true
http.useragent
clj-http}})
(catch Object o (println (pp/pprint o))
The 3rd argument, headers, is what you helped me figure out earlier.
On Mar 4, 4:17 pm, Frank Siebenlist frank.siebenl...@gmail.com
wrote:
.digest returns a byte array - so your PasswordDigest value is unprintable
and is not fit for any header/URL.
Not sure what this base64-encode function does exactly, but normally base64
encoding takes a bunch of bytes already, so the (commented-out)
digest-base64 (base64-encode (.getBytes digest)) does not need the
(.getBytes …) transformation as your digest consists already of bytes.
Note that base64 encoded stuff is not url/html safe and has to be encoded
also before sending it over the http-wire.
-FS.
On Mar 4, 2013, at 1:00 PM, larry google groups lawrencecloj...@gmail.com
wrote:
Thank you for the suggestions. If I do this:
(let [username (get-in @um/interactions [:omniture-api-
credentials :username])
secret (get-in @um/interactions [:omniture-api-
credentials :shared-secret])
random-number (math/round (* (rand 1 ) 100))
nonce (DigestUtils/md5Hex (str random-number))
nonce-encoded-base64 (base64-encode (.getBytes
nonce))
date-formatter (new SimpleDateFormat -MM-
dd'T'HH:mm:ss)
created (.format date-formatter (new Date))
nonce-as-bytes (.getBytes nonce)
created-as-bytes (.getBytes created)
secret-as-bytes (.getBytes secret)
digest (.digest
(doto (java.security.MessageDigest/
getInstance sha1)
.reset
(.update nonce-as-bytes)
(.update created-as-bytes)
(.update secret-as-
bytes)))
;; ;;digest-base64 (base64-encode (.getBytes
digest))
header (apply str UsernameToken Username=\
username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-
base64 \ Created=\ created \)]
header)
I end up with, in part:
PasswordDigest=[B@26f7b2f4
Nonce=Y2MwN2JiYzA5MDlmZjE2ZjExMGYzMjRhODA2Yjc5ODc=
Created=2013-03-04T15:57:52
Which I think is still incorrect.
I also tried this with the PasswordDigest base64 encoded, and that did
not work either.
On Mar 4, 2:43 pm, Frank Siebenlist frank.siebenl...@gmail.com
wrote:
That should work.
No need for .reset though as the initially constructed MessageDigest is
already in its initial state.
Be careful with .digest as it implicitly resets the MessageDigest, and
calling it a second time gives you the digest of the initial state which
is not what you want.
(all that incidental complexity is why I started to write that
functional interface ;-) )
-FS.
On Mar 4, 2013, at 11:32 AM, Aaron Cohen aa...@assonance.org wrote:
Ah darn, thanks for the catch. The following is uglier but should work I
guess. :\
digest (.digest
(doto (java.security.MessageDigest/getInstance sha1)
.reset
(.update nonce-bytes)
(.update created-bytes)
(.update secret-bytes)))
On Mon, Mar 4, 2013 at 2:25 PM, Frank Siebenlist
frank.siebenl...@gmail.com wrote:
digest (- (java.security.MessageDigest/getInstance sha1)
.reset
(.update nonce-bytes)
(.update create-bytes)
(.update secret-bytes)
.digest)
There may be an issue with this snippet of code as .update does
Re: how to get SHA1 of a string?
my library lets you write: (let [… digest (md/digest :sha-1 :utf-8 nonce created secret) …] Great. Now that I have the code working I'll switch over to your library. I felt the need to get a mental picture of what the underlying Java code was doing, but now that I have that I would happily switch to a cleaner interface. On Mar 4, 4:55 pm, Frank Siebenlist frank.siebenl...@gmail.com wrote: Glad Larry has working code now... As I mentioned before in this thread, I'm working on this functional interface for the message-digesting/secure-hashing, and this whole discussion reads like a use case for the why? ;-) It proofs to me that there may be real value in a more user-friendly approach than the one offered by java.security.MessageDigest. So instead of writing: (let [... nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes))) …] my library lets you write: (let [… digest (md/digest :sha-1 :utf-8 nonce created secret) …] and the advantages of the more functional approach is much more than just saving a few lines of code! Although it still needs some more work, any feedback on https://github.com/franks42/clj.security.message-digest; is much appreciated. Regards, FrankS. On Mar 4, 2013, at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: I finally got this to work. Many thanks for all of the help that I was given here. The final, winning combination was: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) random-number (math/round (* (rand 1 ) 100)) nonce (DigestUtils/md5Hex (str random-number)) nonce-encoded-base64 (base64-encode (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) created (.format date-formatter (new Date)) nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes))) digest-base64 (base64-encode digest) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest-base64 \ Nonce=\ nonce-encoded-base64 \ Created=\ created \)] header) On Mar 4, 10:47 am, larry google groups lawrencecloj...@gmail.com wrote: I have been having problems making an API call to Omniture. I have exchanged a dozen emails with a developer at Omniture, and he gave me the impression that I was constructing my security codes incorrectly. So now I am confronting my ignorance over how Java handles certain conversions. The developer at Omniture sent me this explanation in an email: The security digest is formed from a sha1 hash of the following string concatenation: digest = sha1( Binary Nonce + Created Time String + API Secret Hex String (32 bytes) ) I have been struggling with this for several days and I have tried at least (literally) 200 variations on this bit of code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api- credentials :shared-secret]) nonce (DigestUtils/md5Hex (random-string 32)) nonce-encoded-base64 (Base64/encodeBase64 (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM- dd'T'HH:mm:ss'Z') created (.format date-formatter (new Date)) digest-as-string (apply str (.getBytes nonce) created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) digest-as-string) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \)] header) This version gives me: Exception in the main function: #ClassCastException java.lang.ClassCastException: java.lang.String cannot be cast to [B For a long time I was using this for the last 3 lines: digest-as-string (apply str nonce created secret) digest (.digest (java.security.MessageDigest/getInstance sha1) (.getByes digest-as-string)) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest \ Nonce=\ nonce-encoded-base64 \ Created=\ created \) Here I wrapped the whole digest-as-string in (.getBytes) so there was
Re: how to get SHA1 of a string?
Frank, Any idea when you might release your code in a stable form? I am using this code at work so I am nervous about using code that is still marked SNAPSHOT. Lein reminds me not to use a SNAPSHOT: Could not find metadata org.clojars.franks42:clj.security.message- digest:0.1.0-SNAPSHOT/maven-metadata.xml in central (http:// repo1.maven.org/maven2) Could not find metadata org.clojars.franks42:clj.security.message- digest:0.1.0-SNAPSHOT/maven-metadata.xml in central-proxy (https:// repository.sonatype.org/content/repositories/centralm1/) Retrieving org/clojars/franks42/clj.security.message-digest/0.1.0- SNAPSHOT/maven-metadata.xml (1k) from https://clojars.org/repo/ Could not find artifact org.clojars.franks42:clj.security.message- digest:pom:0.1.0-20130304.220822-1 in central (http://repo1.maven.org/ maven2) Retrieving org/clojars/franks42/clj.security.message-digest/0.1.0- SNAPSHOT/clj.security.message-digest-0.1.0-20130304.220822-1.pom (3k) from https://clojars.org/repo/ Retrieving org/clojure/clojure/1.5.0/clojure-1.5.0.pom (6k) from http://repo1.maven.org/maven2/ Retrieving org/clojars/franks42/clj.security.message-digest/0.1.0- SNAPSHOT/clj.security.message-digest-0.1.0-20130304.220822-1.jar (6k) from https://clojars.org/repo/ Compiling 1 source files to /Users/lkrubner/projects/multi-platform- data-visualization/mpdv-clojure/target/classes Release versions may not depend upon snapshots. Freeze snapshots to dated versions or set the LEIN_SNAPSHOTS_IN_RELEASE environment variable to override. On Mar 4, 4:55 pm, Frank Siebenlist frank.siebenl...@gmail.com wrote: Glad Larry has working code now... As I mentioned before in this thread, I'm working on this functional interface for the message-digesting/secure-hashing, and this whole discussion reads like a use case for the why? ;-) It proofs to me that there may be real value in a more user-friendly approach than the one offered by java.security.MessageDigest. So instead of writing: (let [... nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes))) …] my library lets you write: (let [… digest (md/digest :sha-1 :utf-8 nonce created secret) …] and the advantages of the more functional approach is much more than just saving a few lines of code! Although it still needs some more work, any feedback on https://github.com/franks42/clj.security.message-digest; is much appreciated. Regards, FrankS. On Mar 4, 2013, at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: I finally got this to work. Many thanks for all of the help that I was given here. The final, winning combination was: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) random-number (math/round (* (rand 1 ) 100)) nonce (DigestUtils/md5Hex (str random-number)) nonce-encoded-base64 (base64-encode (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) created (.format date-formatter (new Date)) nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes))) digest-base64 (base64-encode digest) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest-base64 \ Nonce=\ nonce-encoded-base64 \ Created=\ created \)] header) On Mar 4, 10:47 am, larry google groups lawrencecloj...@gmail.com wrote: I have been having problems making an API call to Omniture. I have exchanged a dozen emails with a developer at Omniture, and he gave me the impression that I was constructing my security codes incorrectly. So now I am confronting my ignorance over how Java handles certain conversions. The developer at Omniture sent me this explanation in an email: The security digest is formed from a sha1 hash of the following string concatenation: digest = sha1( Binary Nonce + Created Time String + API Secret Hex String (32 bytes) ) I have been struggling with this for several days and I have tried at least (literally) 200 variations on this bit of code: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api- credentials
Re: how to get SHA1 of a string?
If your code is for production… do not use my code! It's pretty much written over the weekend and it's security code, meaning that it deserves much more scrutiny than ordinary code. As mentioned in the readme, it's more an educational exercise, although it was good to see you struggling as it validated my concerns about the java library's approach ;-) Don't even know if I'm willing to maintain it either… Sorry for the bad news - I was just trying to sollicit feedback about alternative interfaces for the secure hashing. Regards, FrankS. On Mar 4, 2013, at 3:09 PM, larry google groups lawrencecloj...@gmail.com wrote: Frank, Any idea when you might release your code in a stable form? I am using this code at work so I am nervous about using code that is still marked SNAPSHOT. Lein reminds me not to use a SNAPSHOT: Could not find metadata org.clojars.franks42:clj.security.message- digest:0.1.0-SNAPSHOT/maven-metadata.xml in central (http:// repo1.maven.org/maven2) Could not find metadata org.clojars.franks42:clj.security.message- digest:0.1.0-SNAPSHOT/maven-metadata.xml in central-proxy (https:// repository.sonatype.org/content/repositories/centralm1/) Retrieving org/clojars/franks42/clj.security.message-digest/0.1.0- SNAPSHOT/maven-metadata.xml (1k) from https://clojars.org/repo/ Could not find artifact org.clojars.franks42:clj.security.message- digest:pom:0.1.0-20130304.220822-1 in central (http://repo1.maven.org/ maven2) Retrieving org/clojars/franks42/clj.security.message-digest/0.1.0- SNAPSHOT/clj.security.message-digest-0.1.0-20130304.220822-1.pom (3k) from https://clojars.org/repo/ Retrieving org/clojure/clojure/1.5.0/clojure-1.5.0.pom (6k) from http://repo1.maven.org/maven2/ Retrieving org/clojars/franks42/clj.security.message-digest/0.1.0- SNAPSHOT/clj.security.message-digest-0.1.0-20130304.220822-1.jar (6k) from https://clojars.org/repo/ Compiling 1 source files to /Users/lkrubner/projects/multi-platform- data-visualization/mpdv-clojure/target/classes Release versions may not depend upon snapshots. Freeze snapshots to dated versions or set the LEIN_SNAPSHOTS_IN_RELEASE environment variable to override. On Mar 4, 4:55 pm, Frank Siebenlist frank.siebenl...@gmail.com wrote: Glad Larry has working code now... As I mentioned before in this thread, I'm working on this functional interface for the message-digesting/secure-hashing, and this whole discussion reads like a use case for the why? ;-) It proofs to me that there may be real value in a more user-friendly approach than the one offered by java.security.MessageDigest. So instead of writing: (let [... nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes))) …] my library lets you write: (let [… digest (md/digest :sha-1 :utf-8 nonce created secret) …] and the advantages of the more functional approach is much more than just saving a few lines of code! Although it still needs some more work, any feedback on https://github.com/franks42/clj.security.message-digest; is much appreciated. Regards, FrankS. On Mar 4, 2013, at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: I finally got this to work. Many thanks for all of the help that I was given here. The final, winning combination was: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) random-number (math/round (* (rand 1 ) 100)) nonce (DigestUtils/md5Hex (str random-number)) nonce-encoded-base64 (base64-encode (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) created (.format date-formatter (new Date)) nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes))) digest-base64 (base64-encode digest) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest-base64 \ Nonce=\ nonce-encoded-base64 \ Created=\ created \)] header) On Mar 4, 10:47 am, larry google groups lawrencecloj...@gmail.com wrote: I have been having problems making an API call to Omniture. I have exchanged a dozen emails with a developer at Omniture, and he gave me the impression that I was
how do I find an IO exception triggering retries in clj-http?
So, thanks to Michael Klishin, Aaron Cohen, Frank Siebenlist and Craig
Brozefsky I am now able to correctly ping the Omniture API. But I am
getting a strange behavior from the clj-http library. It makes 4 calls
to the API server, even though the first call is successful.
When I look here:
https://github.com/dakrone/clj-http
I see it says:
;; Apache's http client automatically retries on IOExceptions, if you
;; would like to handle these retries yourself, you can specify a
;; :retry-handler.
So, since it re-tries, I should assume that it is encountering an
IOException. But I get a successful response on the first try, so what
would the IOException be?
Because clj-http uses Slingshot, I have wrapped it in a try+ / catch
Object o block. And I print the o to the terminal, and yet I am not
seeing anything in the terminal. So where is the IOException? How do I
find it?
This is the actual function I use to ping the Omniture API:
(defn omniture-call-api [url-with-queue-method api-payload headers]
(timbre/spy :debug return value of omniture-call-api
(try+
(http-client/post url-with-queue-method
{:body api-payload
:debug true
:debug-body true
:insecure true
:headers {X-Api-Version 2
X-WSSE headers}
:content-type :json
:socket-timeout 4000
:conn-timeout 4000
:accept :json
:client-params
{http.protocol.allow-circular-redirects true
http.useragent
clj-http}})
(catch Object o (println (pp/pprint o))
If there is an IOException, why doesn't this line catch it?
(catch Object o (println (pp/pprint o))
I read here that catch Object o is the correct way to catch
everything, using Slingshot:
https://github.com/scgilardi/slingshot/issues/24
So why would I not see this error?
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Re: Listing more intuitive install options on the Clojure Downloads page
On Fri, Mar 1, 2013 at 9:58 AM, MC Andre andrew.penneba...@gmail.com wrote: I'm sure that Clojure users, especially novices, would appreciate these being listed as well-supported options on the official downloads page: * Windows chocolatey install clojure * Mac OS X brew install clojure * Ubuntu apt-get install clojure Whilst this sort of advice crops up on numerous blogs, the collected wisdom seems to be don't do that. Clojure itself is just a library for the JVM and should be treated the way other JVM libraries are treated. The thing that needs to be installed - if you don't want to set your hair on fire - is Leiningen. We really need the clojure.org downloads page and the clojure.org getting started page to tell people to use Leiningen and point to http://leiningen.org (NOT the Github repo like it currently does!!). clojure.org really is a disaster as far as new Clojure users are concerned, especially when you compare it to almost the official site for any other modern language... :( Getting clojure.org updated seems to be an extremely difficult process, however... -- Sean A Corfield -- (904) 302-SEAN An Architect's View -- http://corfield.org/ World Singles, LLC. -- http://worldsingles.com/ Perfection is the enemy of the good. -- Gustave Flaubert, French realist novelist (1821-1880) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Inserting multiple rows with clj-jdbc
insert-records will use a single with-connection call and a single transaction to wrap the inserts of all those records (maps). On Fri, Mar 1, 2013 at 3:57 PM, Jonathon McKitrick jmckitr...@gmail.com wrote: Does insert-records with a collection of records have any performance advantage over calling insert-values for each row? Is it only a question of network latency? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Sean A Corfield -- (904) 302-SEAN An Architect's View -- http://corfield.org/ World Singles, LLC. -- http://worldsingles.com/ Perfection is the enemy of the good. -- Gustave Flaubert, French realist novelist (1821-1880) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how to get SHA1 of a string?
Larry, What I can advise though, is to look at my library code and it may give you different perspectives. Furthermore, copy, borrow, and steal what you like and make it your own. -FS. On Mar 4, 2013, at 3:17 PM, Frank Siebenlist frank.siebenl...@gmail.com wrote: If your code is for production… do not use my code! It's pretty much written over the weekend and it's security code, meaning that it deserves much more scrutiny than ordinary code. As mentioned in the readme, it's more an educational exercise, although it was good to see you struggling as it validated my concerns about the java library's approach ;-) Don't even know if I'm willing to maintain it either… Sorry for the bad news - I was just trying to sollicit feedback about alternative interfaces for the secure hashing. Regards, FrankS. On Mar 4, 2013, at 3:09 PM, larry google groups lawrencecloj...@gmail.com wrote: Frank, Any idea when you might release your code in a stable form? I am using this code at work so I am nervous about using code that is still marked SNAPSHOT. Lein reminds me not to use a SNAPSHOT: Could not find metadata org.clojars.franks42:clj.security.message- digest:0.1.0-SNAPSHOT/maven-metadata.xml in central (http:// repo1.maven.org/maven2) Could not find metadata org.clojars.franks42:clj.security.message- digest:0.1.0-SNAPSHOT/maven-metadata.xml in central-proxy (https:// repository.sonatype.org/content/repositories/centralm1/) Retrieving org/clojars/franks42/clj.security.message-digest/0.1.0- SNAPSHOT/maven-metadata.xml (1k) from https://clojars.org/repo/ Could not find artifact org.clojars.franks42:clj.security.message- digest:pom:0.1.0-20130304.220822-1 in central (http://repo1.maven.org/ maven2) Retrieving org/clojars/franks42/clj.security.message-digest/0.1.0- SNAPSHOT/clj.security.message-digest-0.1.0-20130304.220822-1.pom (3k) from https://clojars.org/repo/ Retrieving org/clojure/clojure/1.5.0/clojure-1.5.0.pom (6k) from http://repo1.maven.org/maven2/ Retrieving org/clojars/franks42/clj.security.message-digest/0.1.0- SNAPSHOT/clj.security.message-digest-0.1.0-20130304.220822-1.jar (6k) from https://clojars.org/repo/ Compiling 1 source files to /Users/lkrubner/projects/multi-platform- data-visualization/mpdv-clojure/target/classes Release versions may not depend upon snapshots. Freeze snapshots to dated versions or set the LEIN_SNAPSHOTS_IN_RELEASE environment variable to override. On Mar 4, 4:55 pm, Frank Siebenlist frank.siebenl...@gmail.com wrote: Glad Larry has working code now... As I mentioned before in this thread, I'm working on this functional interface for the message-digesting/secure-hashing, and this whole discussion reads like a use case for the why? ;-) It proofs to me that there may be real value in a more user-friendly approach than the one offered by java.security.MessageDigest. So instead of writing: (let [... nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes))) …] my library lets you write: (let [… digest (md/digest :sha-1 :utf-8 nonce created secret) …] and the advantages of the more functional approach is much more than just saving a few lines of code! Although it still needs some more work, any feedback on https://github.com/franks42/clj.security.message-digest; is much appreciated. Regards, FrankS. On Mar 4, 2013, at 1:31 PM, larry google groups lawrencecloj...@gmail.com wrote: I finally got this to work. Many thanks for all of the help that I was given here. The final, winning combination was: (let [username (get-in @um/interactions [:omniture-api- credentials :username]) secret (get-in @um/interactions [:omniture-api-credentials :shared- secret]) random-number (math/round (* (rand 1 ) 100)) nonce (DigestUtils/md5Hex (str random-number)) nonce-encoded-base64 (base64-encode (.getBytes nonce)) date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) created (.format date-formatter (new Date)) nonce-as-bytes (.getBytes nonce) created-as-bytes (.getBytes created) secret-as-bytes (.getBytes secret) digest (.digest (doto (java.security.MessageDigest/getInstance sha1) .reset (.update nonce-as-bytes) (.update created-as-bytes) (.update secret-as-bytes))) digest-base64 (base64-encode digest) header (apply str UsernameToken Username=\ username \ PasswordDigest=\ digest-base64 \ Nonce=\ nonce-encoded-base64 \ Created=\ created \)]
Re: Clojurescript bug
This particular problem goes away if you use ClojureScript release 1586 *and* rename the directory src/cljs/aima-clojure to src/cljs/aima_clojure and the file tictactoe-frontend.cljs to tictactoe_frontend.cljs Maybe we should warn on encountering filenames with dashes, or else treat them as equivalent to underscores? Cheers, Michał On 4 March 2013 21:35, Tom Hall thattommyh...@gmail.com wrote: Hello, I have just been stuck for ages trying to figure out what was going on in my first clojurescript application and think I have found a bug. I took some working game playing code for a simple tictactoe example and found that I got incorrectly names JS outputted I have created a project with as little clutter as possible. The cljs I am runing is at https://github.com/thattommyhall/cljs-bug/blob/master/src/cljs/aima-clojure/games/tictactoe-frontend.cljs and the commit that fixes it is https://github.com/thattommyhall/cljs-bug/commit/f80cdc4e97f94a6228ecf33d58d489af5de56245 It seems to generate game.aima - clojure$game$Game$moves$arity$2 (ie a subtraction operator) as you can see in the diff. I worked around it for now by adding an alias (def moves game/moves) outside and calling that rather than calling game/moves inside the function. Pretty sure this is a cljs bug as the clj tests run ok either way. Cheers, Tom -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Clojurescript bug
PS. Incidentally, cljs-1450 has a bug which causes it to emit the unmunged property name regardless of the filenames used. The relevant ticket is CLJS-336, fixed in 9824dbd7c8ac658ebc2d5bc9fa6b5b898f17f659 (releases = 1503). On 5 March 2013 01:06, Michał Marczyk michal.marc...@gmail.com wrote: This particular problem goes away if you use ClojureScript release 1586 *and* rename the directory src/cljs/aima-clojure to src/cljs/aima_clojure and the file tictactoe-frontend.cljs to tictactoe_frontend.cljs Maybe we should warn on encountering filenames with dashes, or else treat them as equivalent to underscores? Cheers, Michał On 4 March 2013 21:35, Tom Hall thattommyh...@gmail.com wrote: Hello, I have just been stuck for ages trying to figure out what was going on in my first clojurescript application and think I have found a bug. I took some working game playing code for a simple tictactoe example and found that I got incorrectly names JS outputted I have created a project with as little clutter as possible. The cljs I am runing is at https://github.com/thattommyhall/cljs-bug/blob/master/src/cljs/aima-clojure/games/tictactoe-frontend.cljs and the commit that fixes it is https://github.com/thattommyhall/cljs-bug/commit/f80cdc4e97f94a6228ecf33d58d489af5de56245 It seems to generate game.aima - clojure$game$Game$moves$arity$2 (ie a subtraction operator) as you can see in the diff. I worked around it for now by adding an alias (def moves game/moves) outside and calling that rather than calling game/moves inside the function. Pretty sure this is a cljs bug as the clj tests run ok either way. Cheers, Tom -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: core.logic: Dividing the knowledge base
Thanks so much! I'll check it out tomorrow! On Monday, 4 March 2013 10:51:48 UTC-5, Norman Richards wrote: On Wed, Feb 27, 2013 at 4:03 PM, JvJ kfjwh...@gmail.com javascript:wrote: It states that retractions aren't yet implemented. Is there any way to delete facts? Retractions are now supported. DB merging and cross-DB logic queries are still coming. Feel free to comment on the github issues if you have specific use cases in mind you would like to see this support. I have some specific ideas for things we want to do with this at Threatgrid, but that's only one use case. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
