A replacement prpl for Google Chat in Pidgin/libpurple to support the proprietary protocol that Google uses for its "Google Chat" service.
This plugin is written by Eion Robb based on the old Hangouts plugin written by Eion Robb and Mike 'Maiku' Ruprecht.
To compile, just do the standard make && sudo make install dance. You'll need development packages for libpurple, libjson-glib, glib and libprotobuf-c to be able to compile.
Run the following commands from a terminal
#!sh
sudo apt-get install -y libpurple-dev libjson-glib-dev libglib2.0-dev libprotobuf-c-dev protobuf-c-compiler git make;
git clone https://github.com/EionRobb/purple-googlechat/ && cd purple-googlechat;
make && sudo make install
json-glib-devel libpurple-devel glib2-devel libpurple-devel protobuf-c-devel protobuf-c-compiler
Development builds of Windows dll's will live at https://eion.robbmob.com/libgooglechat.dll - copy this into your C:\Program Files (x86)\Pidgin\plugins folder. You'll also need libprotobuf-c-1.dll and libjson-glib-1.0.dll in your C:\Program Files (x86)\Pidgin folder (not the plugins subfolder)
Until there's some kind of helper/installer, you might want to copy in the protocol icons into the pixmaps folder, eg copy https://github.com/EionRobb/purple-googlechat/raw/master/googlechat16.png to C:\Program Files (x86)\Pidgin\pixmaps\pidgin\protocols\16\googlechat.png (and the same for the 22 and 48 png files)
If you're using this plugin with bitlbee, authentication might be a little confusing. After you follow the prompts, you should get a DM from a purple_request_0 user asking for the token. You can also set the token as the password on the account, if you don't see the DM.
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