Hi Daniel,
Which version of Apache are you running?
Did you enabled all the modules?
$ sudo a2enmod vhost_alias
$ sudo a2enmod proxy
$ sudo a2enmod proxy_http
$ sudo a2enmod proxy_wstunnel
$ sudo a2enmod rewrite
For the launcher configuration, do you have a
proper "resources" and "apps" section?
I'm guessing you are looking at the following
documentation pages?
-
https://kitware.github.io/paraviewweb/docs/guides/apache_front_end.html
<https://kitware.github.io/paraviewweb/docs/guides/apache_front_end.html>
-
https://kitware.github.io/paraviewweb/docs/guides/python_launcher.html
<https://kitware.github.io/paraviewweb/docs/guides/python_launcher.html>
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.
Seb
On Wed, Aug 24, 2016 at 2:22 AM, Daniel Zuidinga
<i...@seoaachen.de <mailto:i...@seoaachen.de>> wrote:
I tried to run the launcher as described in
the docs. But I am still getting errors when
running http://localhost/apps/Visualizer/
<http://localhost/apps/Visualizer/>
Firefox console:
-------------------------------
1. when setting sessionManagerURL in html set
to vtkWeb.properties.sessionManagerURL:
POST
XHR
http://localhost/paraview/ [HTTP/1.1 503
Service Unavailable 48ms]
Object { error: "The process did not properly
start.…" } Visualizer:42:13
2. when setting sessionManagerURL in html to
http://localhost:8080/paraview:
Firefox can't establish a connection to the
server at ws://localhost/ws.
autobahn.min.js:114:0
null Visualizer:42:13
No launcher found. Attempting to connect
using the direct WS url. vtkweb-all.js:4456:19
Use of getPreventDefault() is deprecated. Use
defaultPrevented instead. jquery-1.8.3.min.js:2:0
Cross-Origin Request Blocked: The Same Origin
Policy disallows reading the remote resource
at http://localhost:8080/paraview. (Reason:
CORS header 'Access-Control-Allow-Origin'
missing). <unknown>
GET
http://localhost/ws [HTTP/1.1 404 Not Found 12ms]
null
So the launcher can't start the pv webserver?
But running http://localhost:8080/paraview/1
<http://localhost:8080/paraview/1> in browser
works but says: {"error": "No session with
id: 1"}
My apache config:
-----------------------------
<VirtualHost *:80>
ServerName localhost
ServerAdmin i...@seoaachen.de
<mailto:i...@seoaachen.de>
DocumentRoot
/home/daniel/salome_meca/V2016/prerequisites/Paraview-v501_EDF/share/paraview-5.0/www
ErrorLog "logs/pv-error_log"
CustomLog "logs/pv-access_log" common
### The following commented lines could
be useful when running
### over https and wss:
# SSLEngine On
# SSLCertificateFile
/etc/apache2/ssl/your_certificate.crt
# SSLCertificateKeyFile
/etc/apache2/ssl/your_domain_key.key
# SSLCertificateChainFile
/etc/apache2/ssl/DigiCertCA.crt
#
# <Location ${MY-DOCUMENT-ROOT} >
# SSLRequireSSL On
# SSLVerifyClient optional
# SSLVerifyDepth 1
# SSLOptions +StdEnvVars +StrictRequire
# </Location>
# Have Apache pass these requests to the
launcher :9000
ProxyPass /paraview
http://localhost:8080/paraview
# Turn on the rewrite engine
RewriteEngine On
# This is the path the mapping file Jetty
creates
RewriteMap session-to-port
txt:/home/daniel/proxy.txt
# This is the rewrite condition. Look for
anything with a sessionId= in the query part
of the URL and capture the value to use below.
RewriteCond %{QUERY_STRING} ^sessionId=(.*)$ [NC]
# This does the rewrite using the mapping
file and the sessionId
RewriteRule ^/proxy.*$
ws://${session-to-port:%1}/ws [P]
<Directory
"/home/daniel/salome_meca/V2016/prerequisites/Paraview-v501_EDF/share/paraview-5.0/www">
Options Indexes FollowSymLinks
Order allow,deny
Allow from all
AllowOverride None
Require all granted
</Directory>
</VirtualHost>
my launcher.json
----------------------------
"configuration": {
"host" : "localhost",
"port" : 8080,
"endpoint": "paraview",
"content": "/.../www",
"proxy_file" : "/home/daniel/proxy.txt",
"sessionURL":
"ws://localhost/proxy?sessionId=${id}",
"timeout" : 25,
"log_dir" : "/home/daniel",
"upload_dir" : "/home/daniel",
"fields" : ["file", "host", "port", "updir"]
},
What am I doing wrong?
Daniel Zuidinga
Dipl.-Ing.
SEO Aachen
Passstr. 5
52070 Aachen
Tel : 0241 / 450 912 67
E-Mail:i...@seoaachen.de <mailto:i...@seoaachen.de>
Web :http://www.seoaachen.de (nur zum Teil aktuell)
Xing :https://www.xing.com/profile/Daniel_Zuidinga
<https://www.xing.com/profile/Daniel_Zuidinga>
Bald online: Software Tools für Konstrukteure und
Bauteilhersteller
http://www.engineeringonline.de
<http://www.engineeringonline.de>
Am 22.08.2016 um 22:32 schrieb Sebastien
Jourdain:
Hi Daniel,
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?
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.
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?
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.
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.
Concerning:
https://kitware.github.io/visualizer/docs/
<https://kitware.github.io/visualizer/docs/>
The web visuailzer should work via npm
installation? It does not work for me:
C:\Users\danie\AppData\Roaming\npm\node_modules\pvw-visualizer\bin\pvw-visualizer-cli.js:41
var pvPythonExecs =
find(paraview).filter(function(file) {
return file.match(/pvpython$/) ||
file.match(/pvpython.exe$/); });
^ TypeError:
find(...).filter is not a function
at Object.<anonymous>
(C:\Users\danie\AppData\Roaming\npm\node_modules\pvw-visualizer\bin\pvw-visualizer-cli.js: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
Well, I guess I haven't tried to run the new
Visualizer server on a Windows machine.
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.
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.
Here is an example of what you should see in
a working environment:
$ Visualizer -d ~/Downloads/
===============================================================================
| Execute:
| $
/Applications/paraview.app/Contents/bin/pvpython
| -dr
|
/Users/seb/Documents/code/Web2/visualizer/server/pvw-visualizer.py
| --content
|
/Users/seb/Documents/code/Web2/visualizer/dist
| --port
| 8080
| --data
| /Users/seb/Downloads/
===============================================================================
[...]
-- Daniel Zuidinga Dipl.-Ing. SEO Aachen
Passstr. 5 52070 Aachen Tel : 0241 / 450
912 67 E-Mail: i...@seoaachen.de
<mailto:i...@seoaachen.de> Web :
http://www.seoaachen.de (nur zum Teil
aktuell) Xing :
https://www.xing.com/profile/Daniel_Zuidinga
<https://www.xing.com/profile/Daniel_Zuidinga>
Bald online: Software Tools für
Konstrukteure und Bauteilhersteller
http://www.engineeringonline.de
<http://www.engineeringonline.de>
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