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libpurple-core-answerscripts

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Most-hackable Pidgin plugin! Framework for hooking scripts to respond received messages for various libpurple clients such as pidgin or finch

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#libPurple core-answerscripts plugin
  * **Most hackable pidgin plugin!**
  * Framework for hooking scripts to **respond received messages** (and maybe bit more in future) for various **libpurple** clients such as **pidgin or finch**
  * This simple plugin just passes every single message received by any libPurple-based client (pidgin,finch) to script(s) in user's home directory... So **you can add various hooks.**
  * There are already few sample (answer)scripts in ./purple directory, so you can check how easy it is to write some script for pidgin or finch...

##What can this do for me?

There are lot of hacks that you can do with this simple framework if you know some basic scripting. eg.:

- **Map any response to any incomming message** (You can even use some substitutions and regexes)
- **Forward your instant messages** to email, SMS gateway, text-to-speech (eg. espeak) or something...
- **Remote control** your music player (or anything else on your computer) using instant messages
- **Simple IRC/Jabber/ICQ/XMPP/Facebook bot** (you can run finch in headless screen on server)
- Providing some **service** (Searching web, Weather info, System status, RPG game...)
- BackDoor (**even unintentional one - you've been warned**)
- Loging and analyzing messages
- Connect IM with **Arduino**
- Annoy everyone with spam (and probably **get banned everywhere**)
- **Anything else that you can imagine...** (i'm looking forward to hearing your stories)

##Writing own (answer)scripts

* Check example scripts in **./purple/answerscripts.d/** to see how easy it is
  * Basically
    * Each time you receive message, the main **answerscripts.sh script (answerscripts.exe on M$ Windows) is executed** on background
    * Every line that is outputed by this script to it's **STDOUT is sent** as response to message that executed it
    * Following **environment values are passed** to the script (ANSW\_L = local user, ANSW\_R = remote user = your buddy who sent the message):
      * ANSW\_ACTION	(what happend: IM/CHAT/UNKNOWN, show setting dialog, event, etc...)
      * ANSW\_MSG	(text of the message)
      * ANSW\_MSG\_HIGHLIGHTED	(was my nick mentioned in message? true/false)
      * ANSW\_PROTOCOL	(protocol used to deliver the message. eg.: xmpp, irc,...)
      * ANSW\_R\_NAME	(ID of remote user - "buddy")
      * ANSW\_R\_GROUP	(group which contains that buddy OR empty string)
      * ANSW\_R\_ALIAS	(buddy's OPTIONAL alias, server alias, contact alias, username OR empty string)
      * ANSW\_R\_STATUS	(unique ID of remote user's status. eg.: available, away,...)
      * ANSW\_R\_ROOM\_NAME	(Chatroom name)
      * ANSW\_R\_STATUS\_MSG	(status message set by your buddy)
      * ANSW\_L\_NAME	(ID of local user)
      * ANSW\_L\_ALIAS	(OPTIONAL alias of local user OR empty string)
      * ANSW\_L\_STATUS	(unique ID of local user's status. eg.: available, away,...)
      * ANSW\_L\_STATUS\_MSG	(status message set by local user)
      * ANSW\_L\_AGENT	(ID of IM client used with answerscripts)
      * ANSW\_L\_AGENT\_VERSION	(Version of client)
    * **WARNING: You should mind security (don't let attackers to execute their messages/nicks!)**
    * I guess that you will want to use more than one answerscript, so i made such answerscript which will execute all answerscripts in **~/.purple/answerscripts.d**
      * It's quite smart and all you need to do is set the filenames and permissions of answerscripts in that directory properly...
      * See it's (**./purple/answerscripts.sh**) comments for rest of documentation...

###Example
Following answerscript will reply to each incoming private message if you are not available. Reply will consist of two messages: one with username of your buddy who sent you a message and text of that message; and second with your status message. Simple huh?

#!/bin/sh
    [ "$ANSW_ACTION" = 'IM' ] && [ "$ANSW_L_STATUS" != 'available' ] && {
    	echo "<$ANSW_R_NAME> $ANSW_MSG"
    	echo "My status: $ANSW_L_STATUS_MSG";
    }

##Building & installation

###From packages
- ArchLinux: http://aur.archlinux.org/packages.php?ID=37942

###Manually
- The libpurple header files are needed to compile the plugin.
- To build and install :
  You can compile the plugin using

$ make

and install it with

$ make install

This will install it in ~/.purple/plugins so that only the user who install it can use it.

$ make user

Install main script and sample answerscripts to ~/.purple/answerscripts.d/

- To install it for everybody on your computer,

$ make
        $ su
        # make install PREFIX="/path/to/libpurple" (this command as root user)

generally /path/to/libpurple is /usr or /usr/local. If you don't know the path then you can find out using

$ whereis libpurple

and look for the part before "/lib/libpurple.so".

libpurple-core-answerscripts

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