<div dir="ltr">Thanks Daniel,<div><br></div><div>the documentation explain how to do it in a slightly more secure way with groups and so on... ;-)</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Aug 25, 2016 at 1:20 AM, Daniel Zuidinga <span dir="ltr"><<a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
I allowed read/write permissions for proxy.txt for all. Now it
works! Thank you very much. I hope I can contribute to paraview web
when I am more into it.<div><div class="h5"><br>
<br>
<div>Am 25.08.2016 um 01:19 schrieb
Sebastien Jourdain:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Looking at your system log you may have some hints
on what is going wrong. (Still leaning toward file system
security issue)
<div><br>
</div>
<div>The sessionId could still be sent back but if the launcher
can not write that file, then apache could not figure out its
mapping.</div>
<div><br>
</div>
<div>What linux version are you running it on?<br>
<div><br>
</div>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Wed, Aug 24, 2016 at 4:12 PM, Daniel
Zuidinga <span dir="ltr"><<a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> yes that file has
contents. otherwise the sessionID also wouldn't be send
back?<br>
<br>
any ideas how to fix the ws communication?
<div>
<div><br>
<br>
<div>Am 24.08.2016 um 23:44 schrieb Sebastien
Jourdain:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Yes it seems the ws forwarding is not
working.
<div><br>
</div>
<div>if you cat that file you should see some
content with that id and a host/port that apache
should use to connect to the server that is
running paraview.</div>
<div><br>
</div>
<div>Otherwise the documentation (link that I
previously gave) explain how to use unix group
and setup the appropriate rights to that file so
apache can read while the launcher can write.</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Wed, Aug 24, 2016 at
3:01 PM, Daniel Zuidinga <span dir="ltr"><<a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> how can
I check?<br>
<br>
The sessionID is sent to the client. So as
far as I understand the http requests work,
but not the ws?
<div>
<div><br>
<br>
<br>
<div>Am 24.08.2016 um 22:52 schrieb
Sebastien Jourdain:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>Are you sure apache has the
right to read the <span style="font-size:12.8px">/home/daniel/proxy.txt
while the launcher is writting
it?</span></div>
<div><span style="font-size:12.8px"><br>
</span></div>
<div><span style="font-size:12.8px">Do
you see some content that match
your sessionId within that file?</span></div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Wed, Aug
24, 2016 at 1:57 PM, Daniel
Zuidinga <span dir="ltr"><<a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> <br>
<div>I changed
sessionManagerURL in my html
file to
vtkWeb.properties.sessionManag<wbr>erURL
instead of <a href="http://localhost:8080/paraview" target="_blank">http://localhost:8080/paraview</a><wbr>.
Now I get in firefox:<span><br>
<br>
Use of getPreventDefault()
is deprecated. Use
defaultPrevented instead.
jquery-1.8.3.min.js:2:0<br>
</span> GET <br>
<a href="http://localhost/proxy" target="_blank">http://localhost/proxy</a>
[HTTP/1.1 400 Bad Request
16ms]<br>
null Visualizer:42:13<br>
Firefox can't establish a
connection to the server at
<a>ws://localhost/proxy?sessionId<wbr>=7d12745c-6a34-11e6-a5dc-0016d<wbr>4e2bc28</a>.
autobahn.min.js:114:0<br>
GET <br>
<a href="http://localhost/proxy" target="_blank">http://localhost/proxy</a>
[HTTP/1.1 400 Bad Request
2ms]<br>
null<br>
<br>
...I think one more thing is
needed.
<div>
<div><br>
<br>
<br>
Am 24.08.2016 um 21:51
schrieb Daniel Zuidinga:<br>
</div>
</div>
</div>
<div>
<div>
<blockquote type="cite"> I
had wrong paths in my
launcher.config
properties.<br>
Now the request gets
through and the vtk
window opens. But I have
still the ws error.
Firefox console:<br>
<br>
Firefox can't establish
a connection to the
server at <a>ws://localhost/ws</a>.
autobahn.min.js:114:0<br>
null Visualizer:42:13<br>
Use of
getPreventDefault() is
deprecated. Use
defaultPrevented
instead.
jquery-1.8.3.min.js:2:0<br>
No launcher found.
Attempting to connect
using the direct WS url.
vtkweb-all.js:4456:19<br>
<br>
--- vtk window opens,
then:<br>
<br>
Cross-Origin Request
Blocked: The Same Origin
Policy disallows reading
the remote resource at <a href="http://localhost:8080/paraview" target="_blank">http://localhost:8080/paraview</a><wbr>.
(Reason: CORS header
'Access-Control-Allow-Origin'
missing).
<unknown><br>
GET <br>
<a href="http://localhost/ws" target="_blank">http://localhost/ws</a>
[HTTP/1.1 404 Not Found
2ms]<br>
null Visualizer:42:13<br>
Firefox can't establish
a connection to the
server at <a>ws://localhost/ws</a>.<br>
<br>
<br>
<div>Am 24.08.2016 um
19:18 schrieb
Sebastien Jourdain:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Actually
the hostname might
be an issue if you
have several network
card.
<div>Can you try to
use the computer
IP? Or '0.0.0.0'
for the launcher
if that work?</div>
<div><br>
</div>
<div>Otherwise I did
not spotted any
issue in your
config.</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On
Wed, Aug 24, 2016
at 11:14 AM,
Daniel Zuidinga <span dir="ltr"><<a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
- apache
2.4.12<br>
- modules are
enabled<br>
- launcher.py
launches
without error,
resrouces and
apps section
are in the
config file as
described in
the
documentation<br>
are all ports
and hostnames
right in my
configuration
files? apache
is localhost
and paraview
also
<div>
<div><br>
<br>
Am 24.08.2016
um 16:22
schrieb
Sebastien
Jourdain:<br>
<blockquote type="cite">
<div dir="ltr">Hi
Daniel,
<div><br>
</div>
<div>Which
version of
Apache are you
running?</div>
<div><br>
</div>
<div>Did you
enabled all
the modules?</div>
<div><br>
</div>
<div>
<pre style="margin-top:0px;margin-bottom:0px;padding:0px;border:none;outline:0px;font-family:"Source Code Pro",Monaco,Menlo,Consolas,monospace;font-size:0.95em;vertical-align:baseline;color:rgb(77,77,76);line-height:22px;background:none rgb(238,238,238)"><div style="margin:0px;padding:0px;border:0px;outline:0px;font-weight:inherit;font-style:inherit;font-family:inherit;font-size:14.25px;vertical-align:baseline;min-height:22px">$ sudo a2enmod vhost_alias</div><div style="margin:0px;padding:0px;border:0px;outline:0px;font-weight:inherit;font-style:inherit;font-family:inherit;font-size:14.25px;vertical-align:baseline;min-height:22px">$ sudo a2enmod proxy</div><div style="margin:0px;padding:0px;border:0px;outline:0px;font-weight:inherit;font-style:inherit;font-family:inherit;font-size:14.25px;vertical-align:baseline;min-height:22px">$ sudo a2enmod proxy_http</div><div style="margin:0px;padding:0px;border:0px;outline:0px;font-weight:inherit;font-style:inherit;font-family:inherit;font-size:14.25px;vertical-align:baseline;min-height:22px">$ sudo a2enmod proxy_wstunnel</div><div style="margin:0px;padding:0px;border:0px;outline:0px;font-weight:inherit;font-style:inherit;font-family:inherit;font-size:14.25px;vertical-align:baseline;min-height:22px">$ sudo a2enmod rewrite</div></pre>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">For
the launcher
configuration,
do you have a
proper <span style="color:rgb(77,77,76);font-family:"Source Code Pro",Monaco,Menlo,Consolas,monospace;font-size:14.25px;line-height:22px;white-space:pre-wrap;background-color:rgb(238,238,238)">"resources"</span> and <span style="color:rgb(77,77,76);font-family:"Source Code Pro",Monaco,Menlo,Consolas,monospace;font-size:14.25px;line-height:22px;white-space:pre-wrap;background-color:rgb(238,238,238)">"apps"</span> <wbr>section?</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">I'm
guessing you
are looking at
the following
documentation
pages?</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">-
<a href="https://kitware.github.io/paraviewweb/docs/guides/apache_front_end.html" target="_blank">https://kitware.github.io/para<wbr>viewweb/docs/guides/apache_fro<wbr>nt_end.html</a><br>
</div>
<div class="gmail_quote">-
<a href="https://kitware.github.io/paraviewweb/docs/guides/python_launcher.html" target="_blank">https://kitware.github.io/para<wbr>viewweb/docs/guides/python_lau<wbr>ncher.html</a><br>
</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">Once
you have the
forwarding of
the launcher
request
working, the
next part will
be the
forwarding of
the ws. But we
can talk about
it when and if
you run into
issue about
it.</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">Seb</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">On
Wed, Aug 24,
2016 at 2:22
AM, Daniel
Zuidinga <span dir="ltr"><<a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<p>I tried to
run the
launcher as
described in
the docs. But
I am still
getting errors
when running <a href="http://localhost/apps/Visualizer/" target="_blank">http://localhost/apps/Visualiz<wbr>er/</a></p>
<p>Firefox
console:</p>
<p>------------------------------<wbr>-<br>
</p>
<p>1. when
setting
sessionManagerURL
in html set to
vtkWeb.properties.sessionManag<wbr>erURL:</p>
<p>POST <br>
XHR <br>
<a href="http://localhost/paraview/" target="_blank">http://localhost/paraview/</a>
[HTTP/1.1 503
Service
Unavailable
48ms]<br>
Object {
error: "The
process did
not properly
start.…" }
Visualizer:42:13</p>
<p><br>
</p>
<p>2. when
setting
sessionManagerURL
in html to <a href="http://localhost:8080/paraview" target="_blank">http://localhost:8080/paraview</a><wbr>:</p>
<p>Firefox
can't
establish a
connection to
the server at
<a>ws://localhost/ws</a>.
autobahn.min.js:114:0<br>
null
Visualizer:42:13<br>
No launcher
found.
Attempting to
connect using
the direct WS
url.
vtkweb-all.js:4456:19<br>
Use of
getPreventDefault()
is
deprecated.
Use
defaultPrevented
instead.
jquery-1.8.3.min.js:2:0<br>
Cross-Origin
Request
Blocked: The
Same Origin
Policy
disallows
reading the
remote
resource at <a href="http://localhost:8080/paraview" target="_blank">http://localhost:8080/paraview</a><wbr>.
(Reason: CORS
header
'Access-Control-Allow-Origin'
missing).
<unknown><br>
GET <br>
<a href="http://localhost/ws" target="_blank">http://localhost/ws</a>
[HTTP/1.1 404
Not Found
12ms]<br>
null</p>
<p><br>
</p>
<p>So the
launcher can't
start the pv
webserver? But
running <a href="http://localhost:8080/paraview/1" target="_blank">http://localhost:8080/paraview<wbr>/1</a>
in browser
works but
says:
{"error": "No
session with
id: 1"}<br>
</p>
<p><br>
</p>
<p>My apache
config:</p>
<p>-----------------------------<br>
</p>
<p><VirtualHost
*:80><br>
ServerName
localhost<br>
ServerAdmin <a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a><br>
DocumentRoot
/home/daniel/salome_meca/V2016<wbr>/prerequisites/Paraview-v501_E<wbr>DF/share/paraview-5.0/www<br>
ErrorLog
"logs/pv-error_log"<br>
CustomLog
"logs/pv-access_log" common<br>
### The
following
commented
lines could be
useful when
running<br>
### over
https and wss:<br>
#
SSLEngine On<br>
#
SSLCertificateFile
/etc/apache2/ssl/your_certific<wbr>ate.crt<br>
#
SSLCertificateKeyFile
/etc/apache2/ssl/your_domain_k<wbr>ey.key<br>
#
SSLCertificateChainFile
/etc/apache2/ssl/DigiCertCA.cr<wbr>t<br>
#<br>
#
<Location
${MY-DOCUMENT-ROOT}
><br>
#
SSLRequireSSL
On<br>
#
SSLVerifyClient
optional<br>
#
SSLVerifyDepth
1<br>
#
SSLOptions
+StdEnvVars
+StrictRequire<br>
#
</Location><br>
# Have
Apache pass
these requests
to the
launcher :9000<br>
ProxyPass
/paraview <a href="http://localhost:8080/paraview" target="_blank">http://localhost:8080/paraview</a><br>
# Turn on
the rewrite
engine<br>
RewriteEngine
On<br>
# This is
the path the
mapping file
Jetty creates<br>
RewriteMap
session-to-port txt:/home/daniel/proxy.txt<br>
# This is
the rewrite
condition.
Look for
anything with
a sessionId=
in the query
part of the
URL and
capture the
value to use
below.<br>
RewriteCond
%{QUERY_STRING}
^sessionId=(.*)$ [NC]<br>
# This
does the
rewrite using
the mapping
file and the
sessionId<br>
RewriteRule
^/proxy.*$ <a>ws://$</a>{session-to-port:%1}/ws [P]<br>
<Directory
"/home/daniel/salome_meca/V201<wbr>6/prerequisites/Paraview-v501_<wbr>EDF/share/paraview-5.0/www"><br>
Options
Indexes
FollowSymLinks<br>
Order
allow,deny<br>
Allow
from all<br>
AllowOverride
None<br>
Require all
granted<br>
</Directory><br>
</VirtualHost></p>
<p><br>
</p>
<p><br>
</p>
<p>my
launcher.json</p>
<p>----------------------------<br>
</p>
<p> "configuration":
{<br>
"host" :
"localhost",<br>
<br>
"port" : 8080,<br>
"endpoint":
"paraview", <br>
"content":
"/.../www",
<br>
"proxy_file" :
"/home/daniel/proxy.txt", <br>
"sessionURL":
<a>"ws://localhost/proxy?sessionI<wbr>d=${id}"</a>,<br>
<br>
"timeout" :
25, <br>
"log_dir" :
"/home/daniel", <br>
"upload_dir" :
"/home/daniel", <br>
"fields" :
["file",
"host",
"port",
"updir"]
<br>
},<br>
</p>
<p><br>
</p>
<p>What am I
doing wrong?</p>
<span>
<p><br>
</p>
<pre cols="72">Daniel Zuidinga
Dipl.-Ing.
SEO Aachen
Passstr. 5
52070 Aachen
Tel : 0241 / 450 912 67
E-Mail: <a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a>
Web : <a href="http://www.seoaachen.de" target="_blank">http://www.seoaachen.de</a> (nur zum Teil aktuell)
Xing : <a href="https://www.xing.com/profile/Daniel_Zuidinga" target="_blank">https://www.xing.com/profile/D<wbr>aniel_Zuidinga</a>
Bald online: Software Tools für Konstrukteure und Bauteilhersteller
<a href="http://www.engineeringonline.de" target="_blank">http://www.engineeringonline.d<wbr>e</a></pre>
</span><div><div><div>Am 22.08.2016 um 22:32 schrieb
Sebastien Jourdain:
</div>
<blockquote type="cite">
<div dir="ltr">Hi Daniel,
<div class="gmail_extra">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I
want to use paraview web with SSL. As far as I understand
I need apache as a proxy server for that? Or is it
possible with pvpython?
</blockquote>
<div>
</div>
<div>It might be possible with pvpython, but I've never done
it, I've always used apache to rely on a single opened
port and handle the encryption. </div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I
have my own launcher which opens pvpython with a different
port for each user. Is this the right way? Will this work
with ssl?
</blockquote>
<div>
</div>
<div>If pvpython directly support the wss connection, you
can be good. Usually the setup, that I do is that I have
Apache serving only the port 443 (https) for both the
static content and the (wss) websocket endpoint. And I use
a mapping file between the Websocket endpoint that get
returned by my launcher and the host/port I should connect
to on the backend to establish the link between the client
and the actual ParaViewWeb server instance.</div>
<div>
</div>
<div>But that does not mean, that's the only way to do it
and if you don't mind having several port open, I don't
see why it could not work.</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Concerning:
<a href="https://kitware.github.io/visualizer/docs/" rel="noreferrer" target="_blank">https://kitware.github.io/visu<wbr>alizer/docs/</a>
The web visuailzer should work via npm installation? It
does not work for me:
C:\Users\danie\AppData\Roaming<wbr>\npm\node_modules\pvw-visualiz<wbr>er\bin\pvw-visualizer-cli.js:4<wbr>1
var pvPythonExecs = find(paraview).filter(function<wbr>(file)
{ return file.match(/pvpython$/) ||
file.match(/pvpython.exe$/); });
^
TypeError: find(...).filter is not a function
at Object.<anonymous>
(C:\Users\danie\AppData\Roamin<wbr>g\npm\node_modules\pvw-visuali<wbr>zer\bin\pvw-visualizer-cli.js:<wbr>41:36)
at Module._compile (module.js:409:26)
at Object.Module._extensions..js (module.js:416:10)
at Module.load (module.js:343:32)
at Function.Module._load (module.js:300:12)
at Function.Module.runMain (module.js:441:10)
at startup (node.js:139:18)
at node.js:968:3
</blockquote>
<div>
</div>
<div>Well, I guess I haven't tried to run the new Visualizer
server on a Windows machine. </div>
<div>But with ParaView 5.2 (yet to be released), we should
have a ParaViewWeb back in the binaries. So we should make
sure our Visualizer command line tool work on that
platform as well.</div>
<div>Although, the command line is more for beginners than
anything else as it only simplify the demo usage. In real
word deployment, with a launcher, the true pvpython
command line should be used instead.</div>
<div>
</div>
<div>Here is an example of what you should see in a working
environment:</div>
<div>
</div>
<div>
<div>$ Visualizer -d ~/Downloads/</div>
<div>
</div>
<div>==============================<wbr>==============================<wbr>===================</div>
<div>| Execute:</div>
<div>| $ /Applications/paraview.app/Con<wbr>tents/bin/pvpython</div>
<div>| -dr</div>
<div>|
/Users/seb/Documents/code/Web2<wbr>/visualizer/server/pvw-visuali<wbr>zer.py</div>
<div>| --content</div>
<div>| /Users/seb/Documents/code/Web2<wbr>/visualizer/dist</div>
<div>| --port</div>
<div>| 8080</div>
<div>| --data</div>
<div>| /Users/seb/Downloads/</div>
<div>==============================<wbr>==============================<wbr>===================</div>
<div>
</div>
<div>[...]</div>
<div>
</div>
--
Daniel Zuidinga
Dipl.-Ing.
SEO Aachen
Passstr. 5
52070 Aachen
Tel : 0241 / 450 912 67
E-Mail: <a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a>
Web : <a href="http://www.seoaachen.de" rel="noreferrer" target="_blank">http://www.seoaachen.de</a> (nur zum
Teil aktuell)
Xing : <a href="https://www.xing.com/profile/Daniel_Zuidinga" rel="noreferrer" target="_blank">https://www.xing.com/profile/D<wbr>aniel_Zuidinga</a>
Bald online: Software Tools für Konstrukteure und
Bauteilhersteller
<a href="http://www.engineeringonline.de" rel="noreferrer" target="_blank">http://www.engineeringonline.d<wbr>e</a>
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<pre>______________________________<wbr>_________________
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