Nginx Module for Google

higeon

by FISHERMAN

Nginx Module for Google Mirror

Build Status Gitter

Description

ngx_http_google_filter_module is a filter module which makes google mirror much easier to deploy.
Regular expressions, uri locations and other complex configurations have been built-in already.
The native nginx module ensure the efficiency of handling cookies, gstatic scoures and redirections.
Let’s see how easy it is to setup a google mirror.
location / {
google on;
}
What? Are you kidding me?
Yes, it’s just that simple!

Demo site https://g2.wen.lu

Demo Site

Dependency

  1. pcre regular expression support
  2. ngx_http_proxy_module backend proxy support
  3. ngx_http_substitutions_filter_module mutiple substitutions support

Installation

Download sources first
#
# download the newest source
# @see http://nginx.org/en/download.html
#
wget http://nginx.org/download/nginx-1.7.8.tar.gz

#
# clone ngx_http_google_filter_module
# @see https://github.com/cuber/ngx_http_google_filter_module
#
git clone https://github.com/cuber/ngx_http_google_filter_module

#
# clone ngx_http_substitutions_filter_module
# @see https://github.com/yaoweibin/ngx_http_substitutions_filter_module
#
git clone https://github.com/yaoweibin/ngx_http_substitutions_filter_module
Brand new installation
#
# configure nginx customly
# replace </path/to/> with your real path
#
./configure 
<your configuration> 
  --add-module=</path/to/>ngx_http_google_filter_module 
  --add-module=</path/to/>ngx_http_substitutions_filter_module
Migrate from existed distribution
#
# get the configuration of existed nginx
# replace </path/to/> with your real path
#
</path/to/>nginx -V
> nginx version: nginx/ <version>
> built by gcc 4.x.x
> configure arguments: <configuration>

#
# download the same version of nginx source
# @see http://nginx.org/en/download.html
# replace <version> with your nginx version
#
wget http://nginx.org/download/nginx-<version>.tar.gz

#
# configure nginx
# replace <configuration> with your nginx configuration
# replace </path/to/> with your real path
#
./configure 
<configuration> 
  --add-module=</path/to/>ngx_http_google_filter_module 
  --add-module=</path/to/>ngx_http_substitutions_filter_module
#
# if some libraries were missing, you should install them with the package manager
#   eg. apt-get, pacman, yum ...
#

Usage

Basic Configuration
resolver is needed to resolve domains.
server {
# ... part of server configuration
resolver 8.8.8.8;
location / {
google on;
  }
# ...
}
Google Scholar
google_scholar depends on google, so google_scholar cannot be used independently.
Nowadays google scholar has migrate from http to https, and ncr is supported, so the tld of google scholar is no more needed.
location / {
google on;
google_scholar on;
}
Google Language
The default language can be set through google_language, if it is not setup, zh-CN will be the default language.
location / {
google on;
google_scholar on;
# set language to German
google_language de; 
}
Supported languages are listed below.
ar    -> Arabic
bg    -> Bulgarian
ca    -> Catalan
zh-CN -> Chinese (Simplified)
zh-TW -> Chinese (Traditional)
hr    -> Croatian
cs    -> Czech
da    -> Danish
nl    -> Dutch
en    -> English
tl    -> Filipino
fi    -> Finnish
fr    -> French
de    -> German
el    -> Greek
iw    -> Hebrew
hi    -> Hindi
hu    -> Hungarian
id    -> Indonesian
it    -> Italian
ja    -> Japanese
ko    -> Korean
lv    -> Latvian
lt    -> Lithuanian
no    -> Norwegian
fa    -> Persian
pl    -> Polish
pt-BR -> Portuguese (Brazil)
pt-PT -> Portuguese (Portugal)
ro    -> Romanian
ru    -> Russian
sr    -> Serbian
sk    -> Slovak
sl    -> Slovenian
es    -> Spanish
sv    -> Swedish
th    -> Thai
tr    -> Turkish
uk    -> Ukrainian
vi    -> Vietnamese
Spider Exclusion
The spiders of any search engines are not allowed to crawl google mirror.
Default robots.txt listed below was build-in aleady.
User-agent: *
Disallow: /
If google_robots_allow set to on, the robots.txt will be replaced with the version of google itself.
  #...
location / {
google on;
google_robots_allow on;
  }
#...
Upstreaming
upstream can help you to avoid name resolving cost, decrease the possibility of google robot detection and proxy through some specific servers.
upstream www.google.com {
server 173.194.38.1:443;
server 173.194.38.2:443;
server 173.194.38.3:443;
server 173.194.38.4:443;
}
Proxy Protocol
By default, the proxy will use https to communicate with backend servers.
You can use google_ssl_off to force some domains to fall back to http protocol.
It is useful, if you want to proxy some domains through another gateway without ssl certificate.
#
# eg. 
# i want to proxy the domain 'www.google.com' like this
# vps(hk) -> vps(us) -> google
#

#
# configuration of vps(hk)
#
server {
# ...
location / {
google on;
google_ssl_off "www.google.com";
  }
# ...
}

upstream www.google.com {
server < ip of vps(us) >:80;
}

#
# configuration of vps(us)
#
server {
listen 80;
server_name www.google.com;
# ...
location / {
proxy_pass https://www.google.com;
  }
# ...
}
from https://github.com/cuber/ngx_http_go
ogle_filter_module

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Nginx Module for Google

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