Re: Serving images from classes directory
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Susan, On 6/18/2009 10:57 AM, Susan G. Conger wrote: I actually was thinking about doing it that way. But I was wondering about the overhead. I wish I knew how they were serving up the .html files in the class package. Just follow the code: you have everything you need to know right there in your HTML files and your web.xml. What is the URL you use to retrieve an HTML file from the server? What does the mapping in web.xml say will handle that URL? You only have two mappings: /servlet/* (calls invoker, which will translate the URL into a package + class that will be invoked... note that this is considered insecure and rarely used by competent webapp designers these days) and /servletToJsp (God only knows what that one does). If the URL doesn't match either of those patterns, then it's being served by the DefaultServlet, which just served static pages and won't allow you to serve content from META-INF/* or WEB-INF/*. So, either you have a crazy URL to access those files (and can probably use another crazy URL to access /your/ files), or you are confused about which web.xml file applies to your webapp, or you're just totally lying. I suspect the first or second possibilities are most likely. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAko78ZUACgkQ9CaO5/Lv0PBDTwCgi3FwWpSalKXoQ2NPOlKMAlUU QL4AoKyokJkc1V2M4J2L+B5L6mCUFJNI =uHIx -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Serving images from classes directory
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Susan, On 6/18/2009 8:13 AM, Susan G. Conger wrote: This is a windows box so I can't just put links in the other area. mklink.exe? Why does nobody think that NTFS supports links? I actually have to move or copy the pieces. Having multiple copies of the same objects is not a fix because they have to be kept up to date. rsync? - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAko78hsACgkQ9CaO5/Lv0PArNACfTFGqvGA0cXiuSFMrrcuDkhVb KmsAnjSC4B9D4o3CYj00NuQfXCjnMVjN =Wt3v -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Serving images from classes directory
Andre,
Thanks. I know serving images from the classes directory is not the best
way to do stuff. But from a maintenance/source control stand point it sure
would make things a lot easier if I didn't have to pick and choose what
directories to move when deploying on the users machines. Because the tool
app deploys the web apps that it builds as classes under it's own classes
directory, I have to move all of my custom scripts and graphics to another
location in order to use them. As I said it would make my life much easier
if everything was in one spot. That way I could package everything easier
and maintain with subversion easier. This is a windows box so I can't just
put links in the other area. I actually have to move or copy the pieces.
Having multiple copies of the same objects is not a fix because they have to
be kept up to date.
I knew when I posted the first request that it was strange. But sometimes
we have to take that square peg and hammer it into the round whole. So if
anyone has any ideas (I will take a look at your rewriting url stuff.
Thanks!) how this can be done then I am all ears. If you just want to slam
me for doing something different then don't bother.
Thanks,
Susan
-Original Message-
From: André Warnier [mailto:a...@ice-sa.com]
Sent: Wednesday, June 17, 2009 4:34 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
Susan,
have a look at this :
http://tuckey.org/urlrewrite/
This is a servlet filter, which kind of wraps your webapp,
intercepting all calls before they reach your webapp.
On the way, it allows you to modify the request URL (for instance), to
for example to redirect the call to some simple servlet which would just
return said image.
Or maybe - my knowledge is too limited to really tell - arrange for
these calls to be served by Tomcat's default webapp, which serves static
items.
Note that I am not in all this taking a stance on whether what you want
to do is fundamentally a good idea, which from the previous expert
testimonies here, it seems it is not.
Also, the reason that said experts object so strenuously to what you
want to do, is not that they just personally don't like it for some
reason of elegance or so. Their main objection probably has to do with
the security of your website. Mixing code (which you do not want to
disclose to just about anyone) with static objects (which you want to
disclose of course) is probably the best way to introduce huge holes in
whatever security scheme your site would otherwise have.
So the experts are telling you don't do that, because in their expert
and considerate opinion, they don't feel that they should help you do by
yourself something that will definitely put your site at risk.
Susan G. Conger wrote:
Thanks Tim. I don't have control during build because that is done by the
third party tool. I am not going to mention their name. I was hoping
that
this would be easy. You know a servlet mapping in the web.xml file that
would allow me to just map the directory/file type and I could just put
that
in my html. Since I can't use jsp everywhere I need the images. Again I
am
tied into their system and they have stuff in html files that they create.
I edit the html template files they have to add my images and javascript.
I use their environment to create/edit/build the web application.
Underneath
I have tied in netBeans the best I can so I can debug their stuff. But
that
has issues too.
Thanks,
Susan
-Original Message-
From: Tim Funk [mailto:funk...@apache.org]
Sent: Wednesday, June 17, 2009 1:07 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
If the images are physical images in the classes directory - you have a
few options.
1) At build time - move (or copy) the files from the classes directory
to somewhere more sane that the default servlet can access
2) Write a filter the detects these images that live in the classes dir,
and then forwards to the images. (You need to be careful with this one)
For # 2 - it would look something like this:
doFilter(...) {
String p = request.getServletPath();
if (p.matches(/magic_prefix/[\\w]+\\.gif$)) {
String np = request.getServletPath().replaceFirst(.+/, );
request.getRequestDispatcher(/WEB-INF/class/more/cowbell/ + np)
.forward(request, response);
} else {
chain.doFilter(...);
}
}
-Tim
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RE: Serving images from classes directory
-- What is 'it', precisely? It is server images from the classes directory. I realize the correct place to put my scripts and graphics. However the tool app deploys the app it makes for me as a class under it's classes directory. So I want to put all of my custom scripts and graphics in that class package that it creates. I then want to be able to access my custom content by editing the html and putting a url in that points to the custom content inside the class that was created by the tool app. I have no control over what gets copied and where it is copied from. The developer of the tool app doesn't have any scripts or customizations for this scenario. In the end I may end up putting my custom content where I don't want it, in doing so I know that I will be causing myself a maintenance nightmare for the next couple of year. Everytime I deploy an application it will take extra time/steps. This is what I am trying to avoid by serving the custom content from the images directory. Thanks, Susan -Original Message- From: Pid [mailto:p...@pidster.com] Sent: Wednesday, June 17, 2009 2:58 PM To: Tomcat Users List Subject: Re: Serving images from classes directory Susan G. Conger wrote: I started with the authors of the tool app and they said it was a tomcat limitation. Basically can't be done. What is 'it', precisely? If they control the tool app then why can't they specify a location to place scripts, stylesheets and images, so that they output in a predictable place in your webapp? So I figured I would try the list before I took their word for it. You're not meant to _directly_ access anything in WEB-INF/. It's protected, and deliberately so, as it has stuff you don't want users to access. You *can* put stuff in there and write some code to access it and deliver it on request, but there's not a lot of point in doing so if you can just put the data in question somewhere more accessible. Typically, your webapp would look like (something) this: appname/index.html appname/thing.jsp appname/images/logo.gif appname/styles/layout.css appname/scripts/common.js appname/WEB-INF/web.xml appname/WEB-INF/classes/com/my/app/AppServlet.class appname/WEB-INF/lib/commons-logging.jar Anything you put under /classes isn't going to be available directly to the user if the server is a properly functioning Servlet container. Doesn't stop you putting things elsewhere though. Yes, I use the tool to modify the template files. But that is basically just editing html using the tool. When the tool app builds my app it copies everything into the classes directory. Which classes directory? The one in the tool-app, or the one in your generated webapp? If it copies 'everything' why can't it copy images somewhere into the generated app too? So that everything looks like one big Java class under the tool app. That doesn't make a great deal of sense. You're saying that there's a file called (something like) BigBunchOfTemplates.class in WEB-INF/classes ? So my thought is that my images and javascripts should go in here so I can have everything together and make maintenance easier. I check everything the tool app builds into subversion so I can have some source control. Let's see if my understanding is accurate first. p Thanks, Susan -Original Message- From: Pid [mailto:p...@pidster.com] Sent: Wednesday, June 17, 2009 2:09 PM To: Tomcat Users List Subject: Re: Serving images from classes directory Susan G. Conger wrote: The template files are in the classes directory. This is a web app that is deploying it's own web app. So it is rather convoluted. The web app that gets deployed is my web app while the web app doing the developing is the third party tool. For reference then, we'll call the first one the 'tool app'. So are you actually editing the template files yourself, or are you using the tool app to edit the template files? Where in your app do the modified template files end up, and are they copied individually? The thought also occurs that the authors of the tool app might be the people you really want to be talking to about this. p Thanks, Susan -Original Message- From: Pid [mailto:p...@pidster.com] Sent: Wednesday, June 17, 2009 1:29 PM To: Tomcat Users List Subject: Re: Serving images from classes directory Susan G. Conger wrote: Thanks Tim. I don't have control during build because that is done by the third party tool. I am not going to mention their name. I was hoping that this would be easy. You know a servlet mapping in the web.xml file that would allow me to just map the directory/file type and I could just put that in my html. Since I can't use jsp everywhere I need the images. Again I am tied into their system and they have stuff in html files that they create. I edit the html template files they have to add my images and javascript. I use
RE: Serving images from classes directory
From: Susan G. Conger [mailto:sus...@bfcassociates.com] Subject: RE: Serving images from classes directory But from a maintenance/source control stand point it sure would make things a lot easier if I didn't have to pick and choose what directories to move when deploying on the users machines. That would be the function of a deployment script, written in ant or whatever strikes your fancy; it's not something you'd have to do manually. Once the script is written, you can use it for each deployment, and files will be in the proper locations, eliminating the complexity and risk you're facing now. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Serving images from classes directory
From: Susan G. Conger [mailto:sus...@bfcassociates.com] Subject: RE: Serving images from classes directory So I want to put all of my custom scripts and graphics in that class package that it creates. I then want to be able to access my custom content by editing the html and putting a url in that points to the custom content inside the class that was created by the tool app. I'll bite: how do you expect to put something other than Java code inside a class file? - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Serving images from classes directory
On 18-Jun-2009, at 08:26, Susan G. Conger wrote: -- What is 'it', precisely? It is server images from the classes directory. I realize the correct place to put my scripts and graphics. However the tool app deploys the app it makes for me as a class under it's classes directory. So I want to put all of my custom scripts and graphics in that class package that it creates. I then want to be able to access my custom content by editing the html and putting a url in that points to the custom content inside the class that was created by the tool app. The only way to serve images from the classes directory would be for you to write a servlet that reads the files and then serves them up. While you can do this, don't be surprised by the performance overhead. I would recommend trying to find the least 'hackerish' approach to make things work. For example if it is a question of project management, then you could either split things into separate webapps, or find a folder naming structure that is maintainable, and enforced. One other approach I have seen is to split the project into 'functional areas' that get merged at build time. There is a common project, which has the shared API and the sub projects have the specific elements for their functional area. Andre - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Serving images from classes directory
Susan G. Conger wrote: -- What is 'it', precisely? It is server images from the classes directory. I realize the correct place to put my scripts and graphics. However the tool app deploys the app it makes for me as a class under it's classes directory. So I want to put all of my custom scripts and graphics in that class package that it creates. I then want to be able to access my custom content by editing the html and putting a url in that points to the custom content inside the class that was created by the tool app. I have no control over what gets copied and where it is copied from. The developer of the tool app doesn't have any scripts or customizations for this scenario. In the end I may end up putting my custom content where I don't want it, in doing so I know that I will be causing myself a maintenance nightmare for the next couple of year. Everytime I deploy an application it will take extra time/steps. This is what I am trying to avoid by serving the custom content from the images directory. So that everything looks like one big Java class under the tool app. That doesn't make a great deal of sense. You're saying that there's a file called (something like) BigBunchOfTemplates.class in WEB-INF/classes ? I'd like to help, but I'm a little confused by what you're describing. What, exactly, is generated by the tool app? Is it a .war file? If so, have you expanded it and examined the results to see what's in it? p So my thought is that my images and javascripts should go in here so I can have everything together and make maintenance easier. I check everything the tool app builds into subversion so I can have some source control. Let's see if my understanding is accurate first. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Serving images from classes directory
From: Andre-John Mas [mailto:aj...@sympatico.ca] Subject: Re: Serving images from classes directory The only way to serve images from the classes directory would be for you to write a servlet that reads the files and then serves them up. While you can do this, don't be surprised by the performance overhead. Why would there be any more overhead with that approach than with letting the DefaultServlet do it from some location other than WEB-INF/classes? If the previously suggested internal forwarding mechanism doesn't work (haven't tried it), then extending Tomcat's DefaultServlet would provide a relatively easy means of delivering the content. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Serving images from classes directory
The tool app is the third party development tool that is used to generate my web application. -Original Message- From: Pid [mailto:p...@pidster.com] Sent: Thursday, June 18, 2009 8:47 AM To: Tomcat Users List Subject: Re: Serving images from classes directory Susan G. Conger wrote: -- What is 'it', precisely? It is server images from the classes directory. I realize the correct place to put my scripts and graphics. However the tool app deploys the app it makes for me as a class under it's classes directory. So I want to put all of my custom scripts and graphics in that class package that it creates. I then want to be able to access my custom content by editing the html and putting a url in that points to the custom content inside the class that was created by the tool app. I have no control over what gets copied and where it is copied from. The developer of the tool app doesn't have any scripts or customizations for this scenario. In the end I may end up putting my custom content where I don't want it, in doing so I know that I will be causing myself a maintenance nightmare for the next couple of year. Everytime I deploy an application it will take extra time/steps. This is what I am trying to avoid by serving the custom content from the images directory. So that everything looks like one big Java class under the tool app. That doesn't make a great deal of sense. You're saying that there's a file called (something like) BigBunchOfTemplates.class in WEB-INF/classes ? I'd like to help, but I'm a little confused by what you're describing. What, exactly, is generated by the tool app? Is it a .war file? If so, have you expanded it and examined the results to see what's in it? p So my thought is that my images and javascripts should go in here so I can have everything together and make maintenance easier. I check everything the tool app builds into subversion so I can have some source control. Let's see if my understanding is accurate first. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Serving images from classes directory
Sorry, it is a treated as a package with .xml, .html, .class files, and .java files. So it is serving up the .html files that are in there just fine. So I put an images directory under there and tried to serve up my images and tomcat can't find them. Maybe the images directory needs to be added to the classpath? Thanks, Susan -Original Message- From: Caldarale, Charles R [mailto:chuck.caldar...@unisys.com] Sent: Thursday, June 18, 2009 8:32 AM To: Tomcat Users List; sus...@bfcassociates.com; p...@pidster.com Subject: RE: Serving images from classes directory From: Susan G. Conger [mailto:sus...@bfcassociates.com] Subject: RE: Serving images from classes directory So I want to put all of my custom scripts and graphics in that class package that it creates. I then want to be able to access my custom content by editing the html and putting a url in that points to the custom content inside the class that was created by the tool app. I'll bite: how do you expect to put something other than Java code inside a class file? - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Serving images from classes directory
That is the rub. I don't control this process. The tool app is the one that builds/deploys my application. It is its own web application that actually generates my application and deploys it. So I have to play nice with the tool app in order to have everything work correctly. Thanks, Susan -Original Message- From: Caldarale, Charles R [mailto:chuck.caldar...@unisys.com] Sent: Thursday, June 18, 2009 8:30 AM To: Tomcat Users List Subject: RE: Serving images from classes directory From: Susan G. Conger [mailto:sus...@bfcassociates.com] Subject: RE: Serving images from classes directory But from a maintenance/source control stand point it sure would make things a lot easier if I didn't have to pick and choose what directories to move when deploying on the users machines. That would be the function of a deployment script, written in ant or whatever strikes your fancy; it's not something you'd have to do manually. Once the script is written, you can use it for each deployment, and files will be in the proper locations, eliminating the complexity and risk you're facing now. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Serving images from classes directory
From: Susan G. Conger [mailto:sus...@bfcassociates.com] Subject: RE: Serving images from classes directory Sorry, it is a treated as a package with .xml, .html, .class files, and .java files. So it is serving up the .html files that are in there just fine. You're saying that you already have some mechanism of delivering .html files from WEB-INF/classes? How does that work? Maybe the images directory needs to be added to the classpath? A classloader's classpath is used to access .class files and other resources *via a classloader*; a classloader can not deliver .html files to an HTTP client, so how are you doing it? Do you already have a servlet that reads .html from WEB-INF/classes and writes the output to the response output stream? - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Serving images from classes directory
All that is controlled by the tool app (Not written by me). That is why I have to play nice. :-) Here is my web.xml for the tool app. ?xml version=1.0 encoding=ISO-8859-1 ? !DOCTYPE web-app (View Source for full doctype...) - web-app display-nametool_app application/display-name descriptiontoolapp/description - !-- Define servlet-mapped and path-mapped example filters -- - !-- Define servlets that are included in the example application -- - servlet servlet-nameservletToJsp/servlet-name servlet-classservletToJsp/servlet-class /servlet - servlet servlet-nameinvoker/servlet-name servlet-classorg.apache.catalina.servlets.InvokerServlet/servlet-class - init-param param-namedebug/param-name param-value3/param-value /init-param load-on-startup2/load-on-startup /servlet - servlet-mapping servlet-nameinvoker/servlet-name url-pattern/servlet/*/url-pattern /servlet-mapping - servlet-mapping servlet-nameservletToJsp/servlet-name url-pattern/servletToJsp/url-pattern /servlet-mapping /web-app -Original Message- From: Caldarale, Charles R [mailto:chuck.caldar...@unisys.com] Sent: Thursday, June 18, 2009 10:49 AM To: Tomcat Users List Subject: RE: Serving images from classes directory From: Susan G. Conger [mailto:sus...@bfcassociates.com] Subject: RE: Serving images from classes directory Sorry, it is a treated as a package with .xml, .html, .class files, and .java files. So it is serving up the .html files that are in there just fine. You're saying that you already have some mechanism of delivering .html files from WEB-INF/classes? How does that work? Maybe the images directory needs to be added to the classpath? A classloader's classpath is used to access .class files and other resources *via a classloader*; a classloader can not deliver .html files to an HTTP client, so how are you doing it? Do you already have a servlet that reads .html from WEB-INF/classes and writes the output to the response output stream? - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Serving images from classes directory
Caldarale, Charles R wrote: From: Susan G. Conger [mailto:sus...@bfcassociates.com] Subject: RE: Serving images from classes directory Sorry, it is a treated as a package with .xml, .html, .class files, and .java files. So it is serving up the .html files that are in there just fine. Which is what I was trying to establish. You're saying that you already have some mechanism of delivering .html files from WEB-INF/classes? How does that work? Which is what I was going to ask next. p Maybe the images directory needs to be added to the classpath? A classloader's classpath is used to access .class files and other resources *via a classloader*; a classloader can not deliver .html files to an HTTP client, so how are you doing it? Do you already have a servlet that reads .html from WEB-INF/classes and writes the output to the response output stream? - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Serving images from classes directory
Susan G. Conger wrote: Andre, I actually was thinking about doing it that way. But I was wondering about the overhead. I wish I knew how they were serving up the .html files in the class package. Pull apart the *generated* 'yourapp.war' file. It's just a zip file, so you could rename it to 'yourapp.zip' and then expand the zip. Or use the 'jar' command. Give us an idea of what's in there - the web.xml of that, rather than the tool app will be more interesting. p Thanks, Susan -Original Message- From: Andre-John Mas [mailto:aj...@sympatico.ca] Sent: Thursday, June 18, 2009 8:39 AM To: Tomcat Users List Cc: p...@pidster.com Subject: Re: Serving images from classes directory On 18-Jun-2009, at 08:26, Susan G. Conger wrote: -- What is 'it', precisely? It is server images from the classes directory. I realize the correct place to put my scripts and graphics. However the tool app deploys the app it makes for me as a class under it's classes directory. So I want to put all of my custom scripts and graphics in that class package that it creates. I then want to be able to access my custom content by editing the html and putting a url in that points to the custom content inside the class that was created by the tool app. The only way to serve images from the classes directory would be for you to write a servlet that reads the files and then serves them up. While you can do this, don't be surprised by the performance overhead. I would recommend trying to find the least 'hackerish' approach to make things work. For example if it is a question of project management, then you could either split things into separate webapps, or find a folder naming structure that is maintainable, and enforced. One other approach I have seen is to split the project into 'functional areas' that get merged at build time. There is a common project, which has the shared API and the sub projects have the specific elements for their functional area. Andre - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Serving images from classes directory
Susan G. Conger wrote: All that is controlled by the tool app (Not written by me). That is why I have to play nice. :-) Here is my web.xml for the tool app. ?xml version=1.0 encoding=ISO-8859-1 ? !DOCTYPE web-app (View Source for full doctype...) - web-app etc.. While not being in any way the expert here, the more I see and hear about this webapp, (or is it webapp embedded in another webapp and using an Invoker to serve other stuff), the more I'm getting uneasy and thinking this is a very big mess. Let me suggest an unconventional drastic solution : Put an Apache httpd in front of this Tomcat. Unzip your war file, and put the content somewhere under the httpd document root. Have httpd serve anything that is static, wherever it ends up being under /WEB-INF under this httpd document root. (Apache httpd does not have the scruples about /WEB-INF/ that Tomcat has). Delete everything that it /not/ static (*.jsp,*.class,*.jar,..) from this Apache httpd structure (so you don't serve it raw by mistake). Now connect httpd with Tomcat using a connector like mod_proxy_ajp or mod_jk, and forward all the real dynamic calls to Tomcat. Tomcat will by default not serve anything under /WEB-INF/. But that's fine : whatever static you need there, would already have been served by httpd. Unless this webapp within a webapp really generates static content on-the-fly, all of the above can be done with a simple shell script. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Serving images from classes directory
From: Susan G. Conger [mailto:sus...@bfcassociates.com] Subject: Serving images from classes directory I need to be able to serve images from the classes directory of my web app. Try using ClassLoader.getResourceAsStream() to read the image, then write it to the response output stream. You'll need to set the content-type header appropriately, of course. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Serving images from classes directory
So there isn't any easy way to do this without using java? I was just wanted to use a different url and have them served up correctly. Can you give me/point me to an example of what you are talking about below? Thanks, Susan -Original Message- From: Caldarale, Charles R [mailto:chuck.caldar...@unisys.com] Sent: Wednesday, June 17, 2009 11:33 AM To: Tomcat Users List Subject: RE: Serving images from classes directory From: Susan G. Conger [mailto:sus...@bfcassociates.com] Subject: Serving images from classes directory I need to be able to serve images from the classes directory of my web app. Try using ClassLoader.getResourceAsStream() to read the image, then write it to the response output stream. You'll need to set the content-type header appropriately, of course. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Serving images from classes directory
On Wed, Jun 17, 2009 at 6:56 AM, Susan G. Conger sus...@bfcassociates.com wrote: This may be a bit weird, however there is a reason for it. I need to be able to serve images from the classes directory of my web app. I have to ask -- why? It seems a pointless complication... -- Hassan Schroeder hassan.schroe...@gmail.com - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Serving images from classes directory
The web app is made by another company that screen scrapes/translates a mainframe app and then makes a web app out of it. They store this in their classes directory. So in order to keep everything together and make maintenance and deployment easier, I would like to have all of the generated code and custom code in one location. That way I don't have to pull things from everywhere when I deploy to the web app to our customers. I wish it didn't work this way and if I was developing from scratch I wouldn't do it this way. However sometime we have to find work arounds caused by the environment that others choose. Basically I am stuck so I am trying to make the best of it. Thanks, Susan -Original Message- From: Hassan Schroeder [mailto:hassan.schroe...@gmail.com] Sent: Wednesday, June 17, 2009 11:56 AM To: Tomcat Users List; sus...@bfcassociates.com Subject: Re: Serving images from classes directory On Wed, Jun 17, 2009 at 6:56 AM, Susan G. Conger sus...@bfcassociates.com wrote: This may be a bit weird, however there is a reason for it. I need to be able to serve images from the classes directory of my web app. I have to ask -- why? It seems a pointless complication... -- Hassan Schroeder hassan.schroe...@gmail.com - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Serving images from classes directory
On Wed, Jun 17, 2009 at 9:04 AM, Susan G. Conger sus...@bfcassociates.comwrote: The web app is made by another company that screen scrapes/translates a mainframe app and then makes a web app out of it. They store this in their classes directory. So in order to keep everything together and make maintenance and deployment easier, I would like to have all of the generated code and custom code in one location. That way I don't have to pull things from everywhere when I deploy to the web app to our customers. That makes no sense at all. A web app is a web app, and the classes directory is only one part of it. Pretty much any normal web app includes exposed content like images, stylesheets, javascript. Are you saying you deploy *only* a classes directory to customers? Again, that makes no sense. -- Hassan Schroeder hassan.schroe...@gmail.com
RE: Serving images from classes directory
As I said. It is not a web app that I have created. It is generated by a third party development environment. If I want my stuff to play nice with their stuff then I have to wedge my stuff into their stuff. Which is located under the classes directory. I don't make the rules I just try to bend them to solve my problems. I can't change the development environment. I have to figure out how to get around it. Do you have any idea on how I can accomplish this. I know it is weird but it is what it is. Thanks, Susan -Original Message- From: Hassan Schroeder [mailto:hassan.schroe...@gmail.com] Sent: Wednesday, June 17, 2009 12:10 PM To: Tomcat Users List; sus...@bfcassociates.com Subject: Re: Serving images from classes directory On Wed, Jun 17, 2009 at 9:04 AM, Susan G. Conger sus...@bfcassociates.comwrote: The web app is made by another company that screen scrapes/translates a mainframe app and then makes a web app out of it. They store this in their classes directory. So in order to keep everything together and make maintenance and deployment easier, I would like to have all of the generated code and custom code in one location. That way I don't have to pull things from everywhere when I deploy to the web app to our customers. That makes no sense at all. A web app is a web app, and the classes directory is only one part of it. Pretty much any normal web app includes exposed content like images, stylesheets, javascript. Are you saying you deploy *only* a classes directory to customers? Again, that makes no sense. -- Hassan Schroeder hassan.schroe...@gmail.com - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Serving images from classes directory
From: Susan G. Conger [mailto:sus...@bfcassociates.com] Subject: RE: Serving images from classes directory If I want my stuff to play nice with their stuff then I have to wedge my stuff into their stuff. So what is your stuff? Still haven't heard an explanation of why you think images have to be placed under WEB-INF/classes. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Serving images from classes directory
On Wed, Jun 17, 2009 at 9:24 AM, Susan G. Conger sus...@bfcassociates.comwrote: As I said. It is not a web app that I have created. It is generated by a third party development environment. If I want my stuff to play nice with their stuff then I have to wedge my stuff into their stuff. Which is located under the classes directory. I don't make the rules I just try to bend them to solve my problems. I can't change the development environment. I have to figure out how to get around it. Do you have any idea on how I can accomplish this. Sure, have your own servlet deliver the images and javascript. I know it is weird but it is what it is. It still sounds like utter nonsense. Can you give us any idea of what this third party development environment is so I can be sure to stay far away from it? :-) -- Hassan Schroeder hassan.schroe...@gmail.com
Re: Serving images from classes directory
If the images are physical images in the classes directory - you have a
few options.
1) At build time - move (or copy) the files from the classes directory
to somewhere more sane that the default servlet can access
2) Write a filter the detects these images that live in the classes dir,
and then forwards to the images. (You need to be careful with this one)
For # 2 - it would look something like this:
doFilter(...) {
String p = request.getServletPath();
if (p.matches(/magic_prefix/[\\w]+\\.gif$)) {
String np = request.getServletPath().replaceFirst(.+/, );
request.getRequestDispatcher(/WEB-INF/class/more/cowbell/ + np)
.forward(request, response);
} else {
chain.doFilter(...);
}
}
-Tim
-
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RE: Serving images from classes directory
Thanks Tim. I don't have control during build because that is done by the
third party tool. I am not going to mention their name. I was hoping that
this would be easy. You know a servlet mapping in the web.xml file that
would allow me to just map the directory/file type and I could just put that
in my html. Since I can't use jsp everywhere I need the images. Again I am
tied into their system and they have stuff in html files that they create.
I edit the html template files they have to add my images and javascript.
I use their environment to create/edit/build the web application. Underneath
I have tied in netBeans the best I can so I can debug their stuff. But that
has issues too.
Thanks,
Susan
-Original Message-
From: Tim Funk [mailto:funk...@apache.org]
Sent: Wednesday, June 17, 2009 1:07 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
If the images are physical images in the classes directory - you have a
few options.
1) At build time - move (or copy) the files from the classes directory
to somewhere more sane that the default servlet can access
2) Write a filter the detects these images that live in the classes dir,
and then forwards to the images. (You need to be careful with this one)
For # 2 - it would look something like this:
doFilter(...) {
String p = request.getServletPath();
if (p.matches(/magic_prefix/[\\w]+\\.gif$)) {
String np = request.getServletPath().replaceFirst(.+/, );
request.getRequestDispatcher(/WEB-INF/class/more/cowbell/ + np)
.forward(request, response);
} else {
chain.doFilter(...);
}
}
-Tim
-
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Re: Serving images from classes directory
Susan G. Conger wrote:
Thanks Tim. I don't have control during build because that is done by the
third party tool. I am not going to mention their name. I was hoping that
this would be easy. You know a servlet mapping in the web.xml file that
would allow me to just map the directory/file type and I could just put that
in my html. Since I can't use jsp everywhere I need the images. Again I am
tied into their system and they have stuff in html files that they create.
I edit the html template files they have to add my images and javascript.
I use their environment to create/edit/build the web application. Underneath
I have tied in netBeans the best I can so I can debug their stuff. But that
has issues too.
If you can edit the template files, can't you include images in the same
place as the templates?
p
Thanks,
Susan
-Original Message-
From: Tim Funk [mailto:funk...@apache.org]
Sent: Wednesday, June 17, 2009 1:07 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
If the images are physical images in the classes directory - you have a
few options.
1) At build time - move (or copy) the files from the classes directory
to somewhere more sane that the default servlet can access
2) Write a filter the detects these images that live in the classes dir,
and then forwards to the images. (You need to be careful with this one)
For # 2 - it would look something like this:
doFilter(...) {
String p = request.getServletPath();
if (p.matches(/magic_prefix/[\\w]+\\.gif$)) {
String np = request.getServletPath().replaceFirst(.+/, );
request.getRequestDispatcher(/WEB-INF/class/more/cowbell/ + np)
.forward(request, response);
} else {
chain.doFilter(...);
}
}
-Tim
-
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Re: Serving images from classes directory
The filter (below) can be made smarter to perform smarter checks - so
regular images could be excluded.
-Tim
Susan G. Conger wrote:
Thanks Tim. I don't have control during build because that is done by the
third party tool. I am not going to mention their name. I was hoping that
this would be easy. You know a servlet mapping in the web.xml file that
would allow me to just map the directory/file type and I could just put that
in my html. Since I can't use jsp everywhere I need the images. Again I am
tied into their system and they have stuff in html files that they create.
I edit the html template files they have to add my images and javascript.
I use their environment to create/edit/build the web application. Underneath
I have tied in netBeans the best I can so I can debug their stuff. But that
has issues too.
Thanks,
Susan
-Original Message-
From: Tim Funk [mailto:funk...@apache.org]
Sent: Wednesday, June 17, 2009 1:07 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
If the images are physical images in the classes directory - you have a
few options.
1) At build time - move (or copy) the files from the classes directory
to somewhere more sane that the default servlet can access
2) Write a filter the detects these images that live in the classes dir,
and then forwards to the images. (You need to be careful with this one)
For # 2 - it would look something like this:
doFilter(...) {
String p = request.getServletPath();
if (p.matches(/magic_prefix/[\\w]+\\.gif$)) {
String np = request.getServletPath().replaceFirst(.+/, );
request.getRequestDispatcher(/WEB-INF/class/more/cowbell/ + np)
.forward(request, response);
} else {
chain.doFilter(...);
}
}
-Tim
-
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RE: Serving images from classes directory
The template files are in the classes directory. This is a web app that is
deploying it's own web app. So it is rather convoluted. The web app that
gets deployed is my web app while the web app doing the developing is the
third party tool.
Thanks,
Susan
-Original Message-
From: Pid [mailto:p...@pidster.com]
Sent: Wednesday, June 17, 2009 1:29 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
Susan G. Conger wrote:
Thanks Tim. I don't have control during build because that is done by the
third party tool. I am not going to mention their name. I was hoping
that
this would be easy. You know a servlet mapping in the web.xml file that
would allow me to just map the directory/file type and I could just put
that
in my html. Since I can't use jsp everywhere I need the images. Again I
am
tied into their system and they have stuff in html files that they create.
I edit the html template files they have to add my images and javascript.
I use their environment to create/edit/build the web application.
Underneath
I have tied in netBeans the best I can so I can debug their stuff. But
that
has issues too.
If you can edit the template files, can't you include images in the same
place as the templates?
p
Thanks,
Susan
-Original Message-
From: Tim Funk [mailto:funk...@apache.org]
Sent: Wednesday, June 17, 2009 1:07 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
If the images are physical images in the classes directory - you have a
few options.
1) At build time - move (or copy) the files from the classes directory
to somewhere more sane that the default servlet can access
2) Write a filter the detects these images that live in the classes dir,
and then forwards to the images. (You need to be careful with this one)
For # 2 - it would look something like this:
doFilter(...) {
String p = request.getServletPath();
if (p.matches(/magic_prefix/[\\w]+\\.gif$)) {
String np = request.getServletPath().replaceFirst(.+/, );
request.getRequestDispatcher(/WEB-INF/class/more/cowbell/ + np)
.forward(request, response);
} else {
chain.doFilter(...);
}
}
-Tim
-
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Re: Serving images from classes directory
Susan G. Conger wrote:
The template files are in the classes directory. This is a web app that is
deploying it's own web app. So it is rather convoluted. The web app that
gets deployed is my web app while the web app doing the developing is the
third party tool.
For reference then, we'll call the first one the 'tool app'.
So are you actually editing the template files yourself, or are you
using the tool app to edit the template files?
Where in your app do the modified template files end up, and are they
copied individually?
The thought also occurs that the authors of the tool app might be the
people you really want to be talking to about this.
p
Thanks,
Susan
-Original Message-
From: Pid [mailto:p...@pidster.com]
Sent: Wednesday, June 17, 2009 1:29 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
Susan G. Conger wrote:
Thanks Tim. I don't have control during build because that is done by the
third party tool. I am not going to mention their name. I was hoping
that
this would be easy. You know a servlet mapping in the web.xml file that
would allow me to just map the directory/file type and I could just put
that
in my html. Since I can't use jsp everywhere I need the images. Again I
am
tied into their system and they have stuff in html files that they create.
I edit the html template files they have to add my images and javascript.
I use their environment to create/edit/build the web application.
Underneath
I have tied in netBeans the best I can so I can debug their stuff. But
that
has issues too.
If you can edit the template files, can't you include images in the same
place as the templates?
p
Thanks,
Susan
-Original Message-
From: Tim Funk [mailto:funk...@apache.org]
Sent: Wednesday, June 17, 2009 1:07 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
If the images are physical images in the classes directory - you have a
few options.
1) At build time - move (or copy) the files from the classes directory
to somewhere more sane that the default servlet can access
2) Write a filter the detects these images that live in the classes dir,
and then forwards to the images. (You need to be careful with this one)
For # 2 - it would look something like this:
doFilter(...) {
String p = request.getServletPath();
if (p.matches(/magic_prefix/[\\w]+\\.gif$)) {
String np = request.getServletPath().replaceFirst(.+/, );
request.getRequestDispatcher(/WEB-INF/class/more/cowbell/ + np)
.forward(request, response);
} else {
chain.doFilter(...);
}
}
-Tim
-
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RE: Serving images from classes directory
I started with the authors of the tool app and they said it was a tomcat
limitation. Basically can't be done. So I figured I would try the list
before I took their word for it.
Yes, I use the tool to modify the template files. But that is basically
just editing html using the tool. When the tool app builds my app it copies
everything into the classes directory. So that everything looks like one
big Java class under the tool app. So my thought is that my images and
javascripts should go in here so I can have everything together and make
maintenance easier. I check everything the tool app builds into subversion
so I can have some source control.
Thanks,
Susan
-Original Message-
From: Pid [mailto:p...@pidster.com]
Sent: Wednesday, June 17, 2009 2:09 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
Susan G. Conger wrote:
The template files are in the classes directory. This is a web app that
is
deploying it's own web app. So it is rather convoluted. The web app that
gets deployed is my web app while the web app doing the developing is the
third party tool.
For reference then, we'll call the first one the 'tool app'.
So are you actually editing the template files yourself, or are you
using the tool app to edit the template files?
Where in your app do the modified template files end up, and are they
copied individually?
The thought also occurs that the authors of the tool app might be the
people you really want to be talking to about this.
p
Thanks,
Susan
-Original Message-
From: Pid [mailto:p...@pidster.com]
Sent: Wednesday, June 17, 2009 1:29 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
Susan G. Conger wrote:
Thanks Tim. I don't have control during build because that is done by
the
third party tool. I am not going to mention their name. I was hoping
that
this would be easy. You know a servlet mapping in the web.xml file that
would allow me to just map the directory/file type and I could just put
that
in my html. Since I can't use jsp everywhere I need the images. Again I
am
tied into their system and they have stuff in html files that they
create.
I edit the html template files they have to add my images and javascript.
I use their environment to create/edit/build the web application.
Underneath
I have tied in netBeans the best I can so I can debug their stuff. But
that
has issues too.
If you can edit the template files, can't you include images in the same
place as the templates?
p
Thanks,
Susan
-Original Message-
From: Tim Funk [mailto:funk...@apache.org]
Sent: Wednesday, June 17, 2009 1:07 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
If the images are physical images in the classes directory - you have a
few options.
1) At build time - move (or copy) the files from the classes directory
to somewhere more sane that the default servlet can access
2) Write a filter the detects these images that live in the classes dir,
and then forwards to the images. (You need to be careful with this one)
For # 2 - it would look something like this:
doFilter(...) {
String p = request.getServletPath();
if (p.matches(/magic_prefix/[\\w]+\\.gif$)) {
String np = request.getServletPath().replaceFirst(.+/, );
request.getRequestDispatcher(/WEB-INF/class/more/cowbell/ + np)
.forward(request, response);
} else {
chain.doFilter(...);
}
}
-Tim
-
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RE: Serving images from classes directory
From: Susan G. Conger [mailto:sus...@bfcassociates.com] Subject: RE: Serving images from classes directory This is a web app that is deploying it's own web app. Isn't that illegal in some states/countries? The web app that gets deployed is my web app while the web app doing the developing is the third party tool. When are the images used? When the 3rd-party tool deploys your webapp, or when your webapp is actually running? Is there any way of configuring the 3rd-party tool to store specific files in specific locations in the deployed webapp? - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Serving images from classes directory
Susan G. Conger wrote:
I started with the authors of the tool app and they said it was a tomcat
limitation. Basically can't be done.
What is 'it', precisely?
If they control the tool app then why can't they specify a location to
place scripts, stylesheets and images, so that they output in a
predictable place in your webapp?
So I figured I would try the list before I took their word for it.
You're not meant to _directly_ access anything in WEB-INF/. It's
protected, and deliberately so, as it has stuff you don't want users to
access.
You *can* put stuff in there and write some code to access it and
deliver it on request, but there's not a lot of point in doing so if you
can just put the data in question somewhere more accessible.
Typically, your webapp would look like (something) this:
appname/index.html
appname/thing.jsp
appname/images/logo.gif
appname/styles/layout.css
appname/scripts/common.js
appname/WEB-INF/web.xml
appname/WEB-INF/classes/com/my/app/AppServlet.class
appname/WEB-INF/lib/commons-logging.jar
Anything you put under /classes isn't going to be available directly to
the user if the server is a properly functioning Servlet container.
Doesn't stop you putting things elsewhere though.
Yes, I use the tool to modify the template files. But that is basically
just editing html using the tool. When the tool app builds my app it copies
everything into the classes directory.
Which classes directory? The one in the tool-app, or the one in your
generated webapp?
If it copies 'everything' why can't it copy images somewhere into the
generated app too?
So that everything looks like one big Java class under the tool app.
That doesn't make a great deal of sense. You're saying that there's a
file called (something like) BigBunchOfTemplates.class in WEB-INF/classes ?
So my thought is that my images and javascripts should go in here so I can
have everything together and make
maintenance easier. I check everything the tool app builds into subversion
so I can have some source control.
Let's see if my understanding is accurate first.
p
Thanks,
Susan
-Original Message-
From: Pid [mailto:p...@pidster.com]
Sent: Wednesday, June 17, 2009 2:09 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
Susan G. Conger wrote:
The template files are in the classes directory. This is a web app that
is
deploying it's own web app. So it is rather convoluted. The web app that
gets deployed is my web app while the web app doing the developing is the
third party tool.
For reference then, we'll call the first one the 'tool app'.
So are you actually editing the template files yourself, or are you
using the tool app to edit the template files?
Where in your app do the modified template files end up, and are they
copied individually?
The thought also occurs that the authors of the tool app might be the
people you really want to be talking to about this.
p
Thanks,
Susan
-Original Message-
From: Pid [mailto:p...@pidster.com]
Sent: Wednesday, June 17, 2009 1:29 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
Susan G. Conger wrote:
Thanks Tim. I don't have control during build because that is done by
the
third party tool. I am not going to mention their name. I was hoping
that
this would be easy. You know a servlet mapping in the web.xml file that
would allow me to just map the directory/file type and I could just put
that
in my html. Since I can't use jsp everywhere I need the images. Again I
am
tied into their system and they have stuff in html files that they
create.
I edit the html template files they have to add my images and javascript.
I use their environment to create/edit/build the web application.
Underneath
I have tied in netBeans the best I can so I can debug their stuff. But
that
has issues too.
If you can edit the template files, can't you include images in the same
place as the templates?
p
Thanks,
Susan
-Original Message-
From: Tim Funk [mailto:funk...@apache.org]
Sent: Wednesday, June 17, 2009 1:07 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
If the images are physical images in the classes directory - you have a
few options.
1) At build time - move (or copy) the files from the classes directory
to somewhere more sane that the default servlet can access
2) Write a filter the detects these images that live in the classes dir,
and then forwards to the images. (You need to be careful with this one)
For # 2 - it would look something like this:
doFilter(...) {
String p = request.getServletPath();
if (p.matches(/magic_prefix/[\\w]+\\.gif$)) {
String np = request.getServletPath().replaceFirst(.+/, );
request.getRequestDispatcher(/WEB-INF/class/more/cowbell/ + np)
.forward(request, response);
} else
Re: Serving images from classes directory
Susan G. Conger wrote: The template files are in the classes directory. This is a web app that is deploying it's own web app. So it is rather convoluted. The web app that gets deployed is my web app while the web app doing the developing is the third party tool. Thanks, Susan Self-modifying code; cool!! D - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Serving images from classes directory
Susan,
have a look at this :
http://tuckey.org/urlrewrite/
This is a servlet filter, which kind of wraps your webapp,
intercepting all calls before they reach your webapp.
On the way, it allows you to modify the request URL (for instance), to
for example to redirect the call to some simple servlet which would just
return said image.
Or maybe - my knowledge is too limited to really tell - arrange for
these calls to be served by Tomcat's default webapp, which serves static
items.
Note that I am not in all this taking a stance on whether what you want
to do is fundamentally a good idea, which from the previous expert
testimonies here, it seems it is not.
Also, the reason that said experts object so strenuously to what you
want to do, is not that they just personally don't like it for some
reason of elegance or so. Their main objection probably has to do with
the security of your website. Mixing code (which you do not want to
disclose to just about anyone) with static objects (which you want to
disclose of course) is probably the best way to introduce huge holes in
whatever security scheme your site would otherwise have.
So the experts are telling you don't do that, because in their expert
and considerate opinion, they don't feel that they should help you do by
yourself something that will definitely put your site at risk.
Susan G. Conger wrote:
Thanks Tim. I don't have control during build because that is done by the
third party tool. I am not going to mention their name. I was hoping that
this would be easy. You know a servlet mapping in the web.xml file that
would allow me to just map the directory/file type and I could just put that
in my html. Since I can't use jsp everywhere I need the images. Again I am
tied into their system and they have stuff in html files that they create.
I edit the html template files they have to add my images and javascript.
I use their environment to create/edit/build the web application. Underneath
I have tied in netBeans the best I can so I can debug their stuff. But that
has issues too.
Thanks,
Susan
-Original Message-
From: Tim Funk [mailto:funk...@apache.org]
Sent: Wednesday, June 17, 2009 1:07 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
If the images are physical images in the classes directory - you have a
few options.
1) At build time - move (or copy) the files from the classes directory
to somewhere more sane that the default servlet can access
2) Write a filter the detects these images that live in the classes dir,
and then forwards to the images. (You need to be careful with this one)
For # 2 - it would look something like this:
doFilter(...) {
String p = request.getServletPath();
if (p.matches(/magic_prefix/[\\w]+\\.gif$)) {
String np = request.getServletPath().replaceFirst(.+/, );
request.getRequestDispatcher(/WEB-INF/class/more/cowbell/ + np)
.forward(request, response);
} else {
chain.doFilter(...);
}
}
-Tim
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Re: Serving images from classes directory
What is your OS?
If this a *nix - then you have make sure that Web-INF is readable for the
world,
this is NOT good .On the other hand you could just create a soft link to
whatever they
have there...
Evgeny
On Wed, Jun 17, 2009 at 9:20 PM, Susan G. Conger
sus...@bfcassociates.comwrote:
I started with the authors of the tool app and they said it was a tomcat
limitation. Basically can't be done. So I figured I would try the list
before I took their word for it.
Yes, I use the tool to modify the template files. But that is basically
just editing html using the tool. When the tool app builds my app it
copies
everything into the classes directory. So that everything looks like one
big Java class under the tool app. So my thought is that my images and
javascripts should go in here so I can have everything together and make
maintenance easier. I check everything the tool app builds into subversion
so I can have some source control.
Thanks,
Susan
-Original Message-
From: Pid [mailto:p...@pidster.com]
Sent: Wednesday, June 17, 2009 2:09 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
Susan G. Conger wrote:
The template files are in the classes directory. This is a web app that
is
deploying it's own web app. So it is rather convoluted. The web app
that
gets deployed is my web app while the web app doing the developing is the
third party tool.
For reference then, we'll call the first one the 'tool app'.
So are you actually editing the template files yourself, or are you
using the tool app to edit the template files?
Where in your app do the modified template files end up, and are they
copied individually?
The thought also occurs that the authors of the tool app might be the
people you really want to be talking to about this.
p
Thanks,
Susan
-Original Message-
From: Pid [mailto:p...@pidster.com]
Sent: Wednesday, June 17, 2009 1:29 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
Susan G. Conger wrote:
Thanks Tim. I don't have control during build because that is done by
the
third party tool. I am not going to mention their name. I was hoping
that
this would be easy. You know a servlet mapping in the web.xml file that
would allow me to just map the directory/file type and I could just put
that
in my html. Since I can't use jsp everywhere I need the images. Again
I
am
tied into their system and they have stuff in html files that they
create.
I edit the html template files they have to add my images and
javascript.
I use their environment to create/edit/build the web application.
Underneath
I have tied in netBeans the best I can so I can debug their stuff. But
that
has issues too.
If you can edit the template files, can't you include images in the same
place as the templates?
p
Thanks,
Susan
-Original Message-
From: Tim Funk [mailto:funk...@apache.org]
Sent: Wednesday, June 17, 2009 1:07 PM
To: Tomcat Users List
Subject: Re: Serving images from classes directory
If the images are physical images in the classes directory - you have a
few options.
1) At build time - move (or copy) the files from the classes directory
to somewhere more sane that the default servlet can access
2) Write a filter the detects these images that live in the classes dir,
and then forwards to the images. (You need to be careful with this one)
For # 2 - it would look something like this:
doFilter(...) {
String p = request.getServletPath();
if (p.matches(/magic_prefix/[\\w]+\\.gif$)) {
String np = request.getServletPath().replaceFirst(.+/, );
request.getRequestDispatcher(/WEB-INF/class/more/cowbell/ + np)
.forward(request, response);
} else {
chain.doFilter(...);
}
}
-Tim
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