[GIS] Problem with setting up proxy in Apache

apacheopenlayers-2PROXY

I've downloaded sample proxy.cgi file from here. I've placed it in Apache's cgi-bin directory. However, whenever I try to access it, it throws the error Can't find string terminator '"' anywhere before EOF at C:/dev_/dev_php/sws/xampp/cgi-bin/proxy.cgi line 80.\r. I'm using MS Windows and I've updated the first line of the CGI file to reflect my settings, i.e., to #!"C:\dev_\dev_php\sws\xampp\perl\bin\perl.exe".

All the cgi files in the same directory execute fine. Is it that I'm using an outdated proxy file? I'm using Apache 2.2.21.

Best Answer

In this case it is because your sample proxy script from Open Layers is written in Python. Changing the header line just changes the language that your cgi file tells the server that it's in. You either need to modify your apache server to run Python (see here for one method) or alternately download a Perl proxy and modify it for your purposes, for example the James Marshall CGI Proxy.

Related Solutions

[GIS] WFS via Geoserver – Proxy or MapDocument Issues

A quick solution which avoids the need for proxies while testing is to put your web pages in the www directory of your GeoServer data directory. The page will then be served through the same port and host as your WFS and all will work fine.

Ultimately you will need a proxy if (and only if) you move the web pages to some other location.

GeoServer – How to Proxy GeoServer Through Apache in Windows

If you're using Ubuntu, you'll first have to configure Apache

$sudo ln -s /etc/apache2/mods-available/proxy.conf /etc/apache2/mods-enabled/proxy.conf
$sudo ln -s /etc/apache2/mods-available/proxy.load /etc/apache2/mods-enabled/proxy.load
$sudo ln -s /etc/apache2/mods-available/proxy_http.load /etc/apache2/mods-enabled/proxy_http.load

Then append the following to your /etc/apache2/sites-available/default

 ProxyRequests Off 
 # Remember to turn the next line off if you are proxying to a NameVirtualHost 
 ProxyPreserveHost On 

 <Proxy *> 
     Order deny,allow 
     Allow from all 
 </Proxy> 

 ProxyPass /geoserver http://localhost:8888/geoserver 
 ProxyPassReverse /geoserver http://localhost:8888/geoserver 

 </VirtualHost>

It's a bit tricky in Windows, you'll have to load some modules to enable the proxy. In your httpd.conf, add the following:

LoadModule  proxy_module         modules/mod_proxy.so
LoadModule  proxy_http_module    modules/mod_proxy_http.so
#LoadModule proxy_ftp_module     modules/mod_proxy_ftp.so
#LoadModule proxy_connect_module modules/mod_proxy_connect.so
LoadModule  headers_module       modules/mod_headers.so
LoadModule  deflate_module       modules/mod_deflate.so
LoadModule  xml2enc_module       modules/mod_xml2enc.so
LoadModule  proxy_html_module    modules/mod_proxy_html.so

At the end of your httpd.conf add the following lines

<VirtualHost  *:80>
   ProxyPass /geoserver http://localhost:8080/geoserver
   ProxyPassReverse /geoserver http://localhost:8080/geoserver
</VirtualHost>

Source: http://scripting.com/stories/2008/11/19/checklistForReverseProxies.html

Best Answer

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[GIS] WFS via Geoserver – Proxy or MapDocument Issues

GeoServer – How to Proxy GeoServer Through Apache in Windows

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