Product Opener/Installation

Installation instructions for Product Opener (see Project:Product Opener).

Before you start

Product Opener is not yet released as open source. The instructions below are for reference and for early testers of Product Opener. They are very likely to change as the code will be restructured, made more independent of proprietary code and specific Open Food Facts uses etc.

When it is released, Product Opener will have much easier to use install scripts and instructions.

Install directory

Instructions below use /home/obf for the install directory, replace with your install dir.

Product Opener code

Configuration

startup.pl

This file is used to preload Perl module in Apache. It contains a path that needs to be updated:

# Needs to be configured
use lib "/home/obf/cgi/";

Config2.pm

Contains info about the domain, database and path. This is separated from Config.pm so that it is easy to create test instance that share the same configuration in Config.pm but are on other domains.

# server constants
$domain = "openbeautyfacts.org";

# server paths
$www_root = "/home/obf/html";
$data_root = "/home/obf";

$mongodb = "obf";

Apache servers

In production we use a light weight Apache web server for static files (e.g. images) that does reverse proxying to a modperl Apache server that dynamically generates the HTML pages.

If the trafic is low or moderate, you can use only one Apache mod_perl server that also serves images etc.

In the example below, the Apache mod_perl server listens on port 19000.

Light-weight reverse proxy for static files

Add to httpd.conf:

<VirtualHost *>
DocumentRoot /home/obf/html
ServerName world.openbeautyfacts.org
ServerAlias *.openbeautyfacts.org

ErrorLog /home/obf/logs/proxy_error_log
CustomLog /home/obf/logs/proxy_access_log combined
ServerAdmin stephane@openbeautyfacts.org

<Directory "/home/obf/html">
    Options -Indexes FollowSymLinks
    Order allow,deny
    Allow from all
</Directory>
RewriteEngine on
RewriteCond  %{REQUEST_URI}  !/./
RewriteRule ^(/cgi/.*)$ http://localhost:19000$1 [P,L]
RewriteMap escape int:escape
RewriteRule ^/favicon.ico$ /favicon.ico [L]
RewriteCond  %{REQUEST_URI}  !^/images/
RewriteCond  %{REQUEST_URI}  !^/js/
RewriteCond  %{REQUEST_URI}  !^/rss/
RewriteCond  %{REQUEST_URI}  !^/robots
RewriteCond  %{REQUEST_URI}  !^/clicks/
RewriteCond  %{REQUEST_URI}  !^/data/
RewriteCond  %{REQUEST_URI}  !^/files/
RewriteRule  ^(.*)$ http://localhost:19000/cgi/display.pl?${escape:$1} [P,L,QSA]
</VirtualHost>


<VirtualHost *>
DocumentRoot /home/obf/html
ServerName openbeautyfacts.org
ErrorLog /home/obf/logs/proxy_error_log
CustomLog /home/obf/logs/proxy_access_log combined
DirectoryIndex index.html index.shtml
<Directory "/home/obf/html">
    Options -Indexes FollowSymLinks Includes
    Order allow,deny
    Allow from all
</Directory>
RewriteEngine on
RewriteCond %{HTTP_HOST} ^openbeautyfacts\.org
RewriteRule ^/products$ /products.shtml [L]

</VirtualHost>

modperl Apache server for dynamic pages

• download the latest version of the source of the Apache httpd server from the 2.2 branch (2.2.29 when writing this)
  • do not use the 2.4 branch as mod_perl is not yet compatible with it
• extract the source
• ./configure --with-mpm=prefork --prefix=/home/obf/apache --enable-rewrite --enable-proxy --enable-proxy_http --enable-deflate --disable-userdir --enable-headers
• make
• make install

• download the latest version of mod_perl from http://perl.apache.org/
• extract the source
• perl Makefile.PL MP_APXS=/home/obf/apache/bin/apxs
• make
• make install

Configuration

In /home/obf/apache/conf/httpd.conf:

Change the port:

Listen 19000

Add at the end:

PerlWarn Off
PerlRequire /home/obf/cgi/startup.pl


<Location /cgi>
SetHandler perl-script
PerlResponseHandler ModPerl::Registry
PerlOptions +ParseHeaders
Options +ExecCGI
Order allow,deny
Allow from all
</Location>


<VirtualHost *>
DocumentRoot /home/obf/html
ServerName world.openbeautyfacts.org
ErrorLog /home/obf/logs/error_log
CustomLog /home/obf/logs/access_log combined
ScriptAlias /cgi/ "/home/obf/cgi/"
</VirtualHost>

PerlPostReadRequestHandler My::ProxyRemoteAddr