Re: [josm-dev] WMS and remote-control

2010-08-12 Thread bomm


Komяpa wrote:
 
 2) fires.Kosmosnimki.ru have provided us access to their realtime
 satellite imagery. That imagery [...] consists of thousands of layers.
 [...]
 Now, we need a convenient way to load that imagery into josm. An
 extenstion to josm-remote that will load specified WMS URL will be
 just fine.
 

What do you want to implement? A Web page to select a layer and load it into
JOSM?

Currently the WMS plugin needs a configuration entry for every WMS server
(and every layer).
I don't know how much work it would be to implement a remote interface for
(temporarily?) adding the necessary configuration and automatically loading
the new WMS layer.

For now I suggest you generate and display the WMS URL for the selected
layer in the format required by JOSM. Then the user can copy and paste it
into JOSM's configuration as needed. It's not as user friendly as you
intended but it's the best you can do with the current version of JOSM and
WMS plugin.

(I resend this via nabble because my original message sent via webmail
interface did not show up on the list.)


Bodo
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Re: [josm-dev] WMS and remote-control

2010-08-12 Thread Komяpa
 What do you want to implement? A Web page to select a layer and load it into
 JOSM?
Yes.

 Currently the WMS plugin needs a configuration entry for every WMS server
 (and every layer).
 I don't know how much work it would be to implement a remote interface for
 (temporarily?) adding the necessary configuration and automatically loading
 the new WMS layer.
Except for configuration window (F12-WMS), WMS plugin has menu item
WMS-Rectified Image, that lets user quickly add a layer by WMS URL.
What's needed is a way to access this functionality from a webpage.

-- 
Darafei Komяpa Praliaskouski
xmpp:m...@komzpa.net mailto:m...@komzpa.net

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[josm-dev] Error messages in Josm

2010-08-12 Thread Jonas Stein

i just had a problem with josm. A friend tried to reproduce the steps and
got a different (translated) message.

I suggest to add errorcodes and 
not to translate error messages as things get very improper.
Errormessages could start with 
WW: warning
II: information
EE: error

That could help to filter information.

Fatal: seems to be not the best word to describe the situation.


Example 
JOSM will not stop working for german users:

Fatal: failed to locate image 'markers/Bus Station.png'. This is a serious 
configuration problem. JOSM will stop working.

Fehler: Das Bild 'markers/Bus Station.png' konnte nicht geladen werden. Das 
ist ein schwerwiegendes Konfigurationsproblem.

please comment,

-- 
Jonas Stein n...@jonasstein.de


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Re: [josm-dev] WMS requiring an EULA acceptance

2010-08-12 Thread Bodo Meissner


Pieren wrote:
 
 It could be a WMS customization (blocking the
 images delivery if the user-agent is not in the white list), I don't know
 this part well enough to answer.
 

Matthias is right. You cannot rely on the client program. It is easy to
change the user agent. see
http://chrispederick.com/work/user-agent-switcher/


Matthias Meißer wrote:
 
 so best would be to let mappers somewhat register by mail/osm PM/.. so
 they
 can check who is online. During this step it is necessary to accept the
 EULA.
 


Pieren wrote:
 
 The things you suggest have been
 studied in details with their lawyers and they found this solution as a
 compromise (no user accounts to manage, simplicity, etc). Just click 'OK'
 on
 the text asking you to use the imagery for OSM only. Sounds reasonable.
 

With this simplicity they won't get any security.
As I already said you cannot rely on the client program.

I saw in the WMS plugin that you can specify cookies. (I don't know if it
works correct.)
Maybe the user can go to their website to accept the license. The user will
get a string that he has to copy and paste to his WMS configuration as a
cookie specification. The WMS server can reject requests without a known
cookie.
(But without other checks some cookies will sooner or later be known to
everyone.)

Or the website can create an individual URL after accepting the license. The
user can select the WMS - rectified image option and paste the URL.
(similar security problems here, maybe the URL can be restricted to a
specific IP address and could expire when unused for some time...)


Bodo
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Re: [josm-dev] WMS requiring an EULA acceptance

2010-08-12 Thread Sebastian Klein

Pieren wrote:

Dear josm-devs,

In my country, we have a commercial imagery supplier which is ready to open
its images but only for the OSM project (licencing issues fixed). For that,
they will set-up a WMS for a limited coverage during an experimental period
and want to check that only allowed clients are accessing the data by
checking the user-agent (on which only the OSM editors could be accepted and
others rejected of course).
The main concern is about a special handling of the WMS. They want that a
contributor using the WMS the first time shall read and accept an EULA (End
User License Agreement). Again this is just to inform people that they are
only allowed to use the imagery for OSM and nothing else. Of course, the
whole process can be bypassed by anyone who really want to access the WMS
but this is a demand from the lawyers. The EULA would be available in two
languages but could be extended later.
Then I'm asking you to check if this demand is possible and how it could be
solved. I don't want to fork the WMS plugin just for that, so my idea is
that the plugin could be modified in a way that the special WMS URI could be
identified as such in the Java code (hardcoded) and would raise the EULA
acceptance dialog automatically the first time (stored somewhere is
different languages). I could implement that myself but I would have your
feedback first to see if this is the right way to go.


Generally, it should be possible to include something like this in the 
main wms plugin. Hardcoding some URLs might also be acceptable (but I 
don't think it is needed).


There are always older versions of the wms plugin out there in use. 
These older versions would not know about this blacklist and would 
simply ignore the EULA enforcement. You might want to demand a certain 
parameter in the URL (like ...user=openstreetmap) just to sort out the 
older clients.


When reading the list of defaults [1], wms plugin ignores each line that 
has more than 2 semicolons in it. You can exploit this, to create your 
own custom format. E.g. the first string could be the name of the custom 
format EULA-1.0, followed by the necessary parameters. When extending 
the plugin, make it ignore lines with unknown format.


I would imagine it like this:
* You open josm preference and select the entry from the defaults.
* A message box pops up, informing you that it is necessary to accept an 
EULA for using the service.
* If you click OK, it would download the EULA text from an external 
website (possibly translated) and present it in another dialog.

* Save in the preferences that EULA has been accepted.

[1] 
http://svn.openstreetmap.org/applications/editors/josm/plugins/wmsplugin/sources.cfg


Sebastian

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Re: [josm-dev] WMS requiring an EULA acceptance

2010-08-12 Thread Pieren
On Thu, Aug 12, 2010 at 5:56 PM, Bodo Meissner b...@bodo-m.de wrote:

 Matthias is right. You cannot rely on the client program. It is easy to
 change the user agent. see
 http://chrispederick.com/work/user-agent-switcher/


Again, the idea is not to build up a fortress. It is well known that if
someone really want to catch the images, he will be able to do so anyway.
The request to show and accept the uela is coming from the jurists, I cannot
change that. What I would like to know is if it is possible and how I could
do it in JOSM/WMS plugin without disturbing the main stream.

Pieren
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Re: [josm-dev] WMS requiring an EULA acceptance

2010-08-12 Thread Pieren
On Thu, Aug 12, 2010 at 6:20 PM, Sebastian Klein basti...@googlemail.comwrote:

 I would imagine it like this:
 * You open josm preference and select the entry from the defaults.
 * A message box pops up, informing you that it is necessary to accept an
 EULA for using the service.
 * If you click OK, it would download the EULA text from an external
 website (possibly translated) and present it in another dialog.
 * Save in the preferences that EULA has been accepted.


Sounds reasonable for me. If nobody is against this proposal, I will look to
implement it in the plugin.

Thank you for your support,
Pieren
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Re: [josm-dev] WMS and remote-control

2010-08-12 Thread Sebastian Klein

Komяpa wrote:

Hi all,

1) Due to Landsat WMS being down and overloaded usually, we've set up
a caching WMS proxy for it.
JOSM URL is http://irs.gis-lab.info/?layers=landsat;
Please consider updating JOSM defaults.


Do you want it to show up in the list on the bottom, or make it 
installed by default instead of the standard landsat URL?


Are you sure, you can handle the traffic?

The list of wms services [1] can be edited and is loaded by each wms 
client on startup. However you cannot force people to delete an entry 
from their menu, once it has been added it to their bookmarks.


[1] 
http://svn.openstreetmap.org/applications/editors/josm/plugins/wmsplugin/sources.cfg



2) fires.Kosmosnimki.ru have provided us access to their realtime
satellite imagery. That imagery is not mosaiced, and consists of
thousands of layers. We've made a WMS gateway to it.
Now, we need a convenient way to load that imagery into josm. An
extenstion to josm-remote that will load specified WMS URL will be
just fine. Hope somebody will write it, as I'm no java coder,
unfortunately.


There are some security issues when the browser has too much control 
over the client software.


If you extend josm-remote this way, I suggest you fork it. (No offence 
intended, might be useful for some.)



Sebastian

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