如何在Raspberry Pi(Backport mod_proxy_wstunnel)上将mod_proxy_wstunnel添加到Apache2 2.2

Question

Raspberry Pi仍在使用Apache 2.2(现在为2.2.22-13 + deb7u4).要使用Apache作为Websockets的代理("ProxyPass"),需要Apache模块mod_proxy_wstunnel.

Apache模块mod_proxy_wstunnel在httpd 2.4.5及更高版本中可用.

如何在Raspberry Pi(Backport mod_proxy_wstunnel)上将mod_proxy_wstunnel添加到Apache2 2.2？

Answer 1

下载Apache Source,从Vitkin添加补丁,编译Apache并将模块mod_proxy_wstunnel.so添加到Apache Modules

有关补丁的详细信息:https://gist.github.com/vitkin/6661683

详细步骤:

# Check apache version (should be 2.2.22 as of writing, if not adjust the next step)
dpkg -s apache2

# Checkout apache source
svn checkout http://svn.apache.org/repos/asf/httpd/httpd/tags/2.2.22/ httpd-2.2.22

# Get patch and apply it
wget https://gist.github.com/vitkin/6661683/raw/873dd8b4de4ad1ff69757ffe48fc574374aedc57/apache-2.2-wstunnel.patch
cd httpd-2.2.22
patch -p1 -i ../apache-2.2-wstunnel.patch

# Build Apache 
svn co http://svn.apache.org/repos/asf/apr/apr/branches/1.4.x srclib/apr
svn co http://svn.apache.org/repos/asf/apr/apr-util/branches/1.3.x srclib/apr-util
./buildconf # EDIT: Some commenters noted that buildconf should be run before the configure
./configure --enable-proxy=shared --enable-proxy_wstunnel=shared
make

# Copy the module to apache installation
sudo cp modules/proxy/.libs/mod_proxy_wstunnel.so /usr/lib/apache2/modules

# Create module load file
cd /etc/apache2/mods-available
sudo echo "LoadModule proxy_wstunnel_module /usr/lib/apache2/modules/mod_proxy_wstunnel.so" > proxy_wstunnel.load

# Create symbolic link to load the module
cd /etc/apache2/mods-enabled
sudo ln -s ../mods-available/proxy_wstunnel.load proxy_wstunnel.load

# Add ProxyPass to Site config
cd /etc/apache2/sites-available

# e.g. modify default site config with "sudo nano default"
# and add the following line inside the VirtualHost element:
# "ProxyPass /websockets/mywebsocket ws://mywebsocketserver.com/websockets/mywebsocket"

# Restart Apache
sudo /etc/init.d/apache2 restart