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Copy pathtinyurl.py
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419 lines (399 loc) · 14 KB
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#!/bin/env python
#
# TinyUrl, version 3.5, for weechat version 0.1.9 or later
#
# Listens to all channels for long URLs, and submits them to ln-s.net or
# tinyurl.com for easier links.
#
# Usage:
#
# By default, any URL longer than 30 characters in length is grabbed,
# submitted to a service, and printed in the channel for your eyes only. For
# example, you may see something like this:
#
# [11:21] <@lack> http://www.cbc.ca/story/canada/national/2005/11/12/mcdona
# lds-051112.html?ref=rss
# [11:21] -P- [AKA] http://tinyurl.com/9dthl
#
# Now you can just cut&paste the easier, shorter URL into your favourite
# browser.
#
# If you want to be extra-helpful (or annoying) to certain channels you
# are in, you can actually have the script say the tinyurl.com equivalent
# of all long URLs, by adding the channel to the 'activechans' list. In
# that case, everyone in the channel would see the following:
#
# [11:25] <testuser> http://www.cbc.ca/story/canada/national/2005/11/12/mcdona
# lds-051112.html?ref=rss
# [11:25] <@lack> [AKA] http://tinyurl.com/9dthl
#
# Configuration:
#
# Run '/help tinyurl' for the actual usage for setting these options:
#
# activechans
# A comma-delimited list of channels you will actually "say" the
# tinyurl in. By default the list is empty. Be warned, some channels
# won't appreciate extra help (or 'noise' as they like to call it), and
# some channels already have bots that do this. Please only enable
# this in channels where the ops have given you permission.
#
# urllength
# An integer, default value 30. Any URL this long or longer will
# trigger a tinyurl event.
#
# printall
# Either "on" or "off", default "on". When ON, you will see the
# tinyurl printed in your window for any channels not in your
# activechans list. When OFF, you will not see any tinyurls except in
# your activechans list.
#
# service
# Either "tinyurl" or "ln-s". tinyurl is the default.
#
# Requirements:
#
# - Designed to run with weechat version 0.1.9 or better.
# http://weechat.flashtux.org/
#
# - Requires that 'curl' is in the path (tested with curl 7.15.0).
# http://curl.haxx.se/
#
# Copyright (C) 2005 Jim Ramsay <i.am@jimramsay.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
# USA.
#
# Changelog:
#
# Version 3.5, June 3, 2008
# Added ln-s.net support
# Turned off some ugly verbose output unless requested
#
# Version 3.4, June 3, 2008
# tinyurl.com changed their output page slightly, and broke our parsing
#
# Version 3.3, July 4, 2006
# Catches possible error in os.waitpid
# Properly prints tinyurls in query windows
#
# Version 3.2, June 15, 2006
# Multiple configuration bugfixes, pointed out by Stalwart on #weechat.
#
# Version 3.1, June 15, 2006
# Now kills any leftover curl processes when the script is unloaded.
# Thanks again to kolter for the great idea!
# Also cleaned up /tinyurl command, added comletion_template, updated
# help text, improved option parsing logic, etc.
#
# Version 3.0, June 15, 2006
# Fixes "tinyurl script sometimes makes weechat freeze" issue by using
# the new timer handlers available in Weechat 0.1.9
# Also includes URL detection fix from Raimund Specht
# <raimund@spemaus.de>.
#
# Version 2.0, Dec 13, 2005
# Also catches https, ftp, and ftps URLs, thanks to kolter for the
# suggestion!
#
# Version 1.1, Dec 2, 2005
# Fixed undefined 'urlend' thanks to kolter@irc.freenode.org#weechat
#
# TODO:
#
# - Handle outgoing messages and replace long urls with the tinyurl
# equivalent automatically.
# - On load, check that 'curl' is installed, and fail if not.
#
import os, tempfile, re
try:
import urllib
except:
raise ImportError("You need to reload the python plugin to reload urllib")
import weechat
class TryAgain(UserWarning):
def __init__(self, message):
super(UserWarning, self).__init__(message)
# Register with weechat
weechat.register( "TinyUrl", "3.5", "tinyurlShutdown", "Waits for URLs and sends them to 'tinyurl' for you" )
# Global variables
tinyurlParams = ("urllength","activechans","printall","service","debug")
tinyurlProcessList = {}
# Set default settings values:
if weechat.get_plugin_config('urllength') == "":
weechat.set_plugin_config('urllength', "30")
if not weechat.get_plugin_config('printall') in ("on", "off"):
weechat.set_plugin_config('printall', "on")
if not weechat.get_plugin_config('service') in ("tinyurl", "ln-s"):
weechat.set_plugin_config('service', "tinyurl")
if not weechat.get_plugin_config('debug') in ("on", "off"):
weechat.set_plugin_config('debug', "off")
# Start the timer thread and register handlers
weechat.add_timer_handler( 1, "tinyurlCheckComplete" )
weechat.add_message_handler("privmsg", "tinyurlHandleMessage")
weechat.add_command_handler("tinyurl", "tinyurlMain", \
"Sets/Gets 'tinyurl' settings.",
"[<variable> [[=] <value>]]",
"""When run without arguments, displays all tinyurl settings
<variable> : Sets or displays a single tinyurl setting. One of:
activechans [[=] #chan1[,#chan2...]]
List of channels where others will see your tinyurls.
Default: None
urllength [[=] length]
Will not create tinyurls for any URLs shorter than this.
Default: 30
printall [[=] on|off]
When off, will not display private tinyurls, just those
displayed publicly in your "active channels"
Default: on
service [[=] tinyurl|ln-s]
Sets the service used for shortening the URL.
Default: tinyurl
debug [[=] on|off]
Creates extra debug output in the server window when on.
Default: off""",
"urllength|activechans|printall|service|debug"
)
def tinyurlShutdown():
"""Cleanup - Kills any leftover child processes"""
if len(tinyurlProcessList.keys()) > 0:
weechat.prnt( "-TinyUrl- Cleaning up unfinished processes:", "", "" )
for pid in tinyurlProcessList.keys():
weechat.prnt( " Process %d" % pid, "", "" )
try:
os.kill(pid, 9)
os.waitpid( pid, 0 )
except:
weechat.prnt( " Cleanup failed, skipping", "", "" )
return weechat.PLUGIN_RC_OK
def tinyurlGet( name = "" ):
"""Gets a variable value"""
if name == "":
weechat.prnt( "-TinyUrl- Get all:" )
for name in tinyurlParams:
weechat.prnt( " %s = %s" % (name, weechat.get_plugin_config(name)) )
else:
weechat.prnt( "-TinyUrl- Get:" )
if name in tinyurlParams:
weechat.prnt( " %s = %s" % (name, weechat.get_plugin_config(name)) )
else:
weechat.prnt( " Unknown parameter \"%s\", try '/help tinyurl'" % name )
return
def tinyurlSet( name, value ):
"""Sets a variable value"""
if value == "":
tinyurlGet( name )
else:
weechat.prnt( "-TinyUrl- Set:" )
if name in tinyurlParams:
if name == "printall" or name == "debug":
if value == "0" or value.lower() == "no" or value.lower() == "off":
value = "off"
elif value == "1" or value.lower() == "yes" or value.lower() == "on":
value = "on"
else:
weechat.prnt( " %s must be one of 'on' or 'off'" % name )
weechat.prnt( " value = '%s'" % value )
return
elif name == "service":
if value.lower() in ("tinyurl", "ln-s"):
value = value.lower()
else:
weechat.prnt( " service must be one of 'tinyurl' or 'ln-s'" )
weechat.prnt( " value = '%s'" % value )
return
elif name == "urllength":
try:
v = int(value)
if v < 0 or v > 100:
weechat.prnt( " urllength must be between 0 and 100" )
weechat.prnt( " value = '%s'" % value )
return
except:
weechat.prnt( " urllength must be a valid integer" )
weechat.prnt( " value = '%s'" % value )
return
elif name == "activechans":
vs = re.split(", |,| ", value)
values = []
for v in vs:
if v.startswith("#"):
values.append(v)
value = ",".join(values)
weechat.set_plugin_config(name, value)
weechat.prnt( " %s = %s" % (name, weechat.get_plugin_config(name)) )
else:
weechat.prnt( " Unknown parameter \'%s\'" % name )
return
def tinyurlMain( server, args ):
"""Main handler for the /tinyurl command"""
args = args.split( " " )
while '' in args:
args.remove('')
while ' ' in args:
args.remove(' ')
if len(args) == 0:
tinyurlGet()
else:
name = args[0]
value = ""
if len(args) > 1:
if args[1] == "=":
value = " ".join(args[2:])
else:
value = " ".join(args[1:])
tinyurlSet( args[0], value )
else:
tinyurlGet( name )
return weechat.PLUGIN_RC_OK
def tinyurlGetUrl( url, channel, server ):
"""Starts a background process which will query the appropriate service and
put the result in a file that the timer function 'tinyurlCheck' will find and
parse."""
global tinyurlProcessList
handle, filename = tempfile.mkstemp( prefix="weechat-tinyurl.py-" )
os.close(handle)
service = weechat.get_plugin_config('service')
if service == "tinyurl":
cmd = ("curl -d url=%s http://tinyurl.com/create.php --stderr /dev/null -o %s" % \
(urllib.quote(url), filename)).split()
else:
cmd = ("curl http://ln-s.net/home/api.jsp?url=%s --stderr /dev/null -o %s" % \
(urllib.quote(url), filename)).split()
try:
pid = os.spawnvp( os.P_NOWAIT, cmd[0], cmd )
if weechat.get_plugin_config('debug') == "on":
weechat.prnt( "Setting ProcessList[%d] to (%s, %s, %s)" % \
(pid, filename, channel, server), "", server )
tinyurlProcessList[pid] = (filename, url, service, channel, server)
except Exception, e:
weechat.prnt( "-TinyUrl- Error: Could not spawn curl: %s" % e )
def parseTinyurl( file ):
turl = None
for line in file:
if( line.startswith("<input type=\"hidden\" id=\"tinyurl\" value=\"") ):
turlend = line[41:].find("\"")
if turlend > -1:
turl = line[41:][:turlend]
break
if turl is None:
weechat.prnt( "-TinyUrl- Error: Unrecognized response from server" )
weechat.prnt( " Maybe tinyurl.com changed their format again." )
weechat.prnt( " Try '/tinyurl service ln-s' to use ln-s.net instead" )
return turl
def parseLns( file ):
turl = None
for line in file:
(code, message) = line.split(" ", 2)
if code == "200":
return message.rstrip()
elif code == "503":
# Try again, respawn curl
weechat.prnt( "-TinyUrl- Warning: ln-s.net is busy, trying again shortly" )
raise TryAgain(line)
else:
weechat.prnt( "-TinyUrl- Error: Error response from server: %s" % (line) )
return None
def tinyurlParsefile( filename, service ):
"""Parses the given HTML file and pulls out the tinyurl."""
turl = None
try:
html = open(filename, "r")
if service == "tinyurl":
turl = parseTinyurl(html)
else:
turl = parseLns(html)
html.close()
except Exception, e:
weechat.prnt( "-TinyUrl- Error: Could not open result file %s: %s" % (filename, e) )
return turl
def tinyurlPrint( original, url, channel, server ):
"""Prints the new tinyurl either to just you, or to the whole channel"""
where = "Unknown"
locstart = original.find("//")
if locstart > -1:
locend = original.find("/", locstart + 2)
if locend > -1:
where = original[locstart + 2:locend]
activeChans = weechat.get_plugin_config('activechans').split(',')
if channel in activeChans:
weechat.command( "/msg %s [AKA] %s" % ( channel, url) )
else:
if weechat.get_plugin_config('debug') == "on":
weechat.prnt( "Printing url to channel '%s', server '%s'" % \
(channel, server), "", server )
weechat.prnt( "[AKA] %s (%s)" % (url, where), channel, server )
def tinyurlFindUrlstart( msg, start = 0 ):
"""Finds the beginnings of URLs"""
index = -1
if start < 0 or start >= len(msg):
return index
for prefix in ( "http://", "https://", "ftp://", "ftps://" ):
index = msg.find( prefix, start )
if index > -1:
break
return index
def tinyurlFindUrlend( msg, urlstart ):
"""Finds the ends of URLs (Strips following punctuation)"""
m = msg[urlstart:]
index = m.find( " " )
if index == -1:
index = len(m)
while msg[index-1] in ( "?", ".", "!" ):
index -= 1
return index + urlstart
def tinyurlCheckComplete():
"""The periodic poll of all waiting processes"""
global tinyurlProcessList
for pid in tinyurlProcessList.keys():
(filename, url, service, channel, server) = tinyurlProcessList[pid]
try:
(p, er) = os.waitpid( pid, os.WNOHANG )
if p != 0:
if er == 0:
try:
tinyurl = tinyurlParsefile(filename, service)
if tinyurl is not None:
tinyurlPrint( url, tinyurl, channel, server )
except TryAgain:
tinyurlGetUrl(url, channel, server)
else:
weechat.prnt( "-TinyUrl- Error: 'curl' did not run properly" )
os.unlink(filename)
del tinyurlProcessList[pid]
except OSError, e:
weechat.prnt( "-TinyUrl- Error: 'curl' process not found: %s", e )
os.unlink(filename)
del tinyurlProcessList[pid]
return weechat.PLUGIN_RC_OK
def tinyurlHandleMessage( server, args ):
"""Handles IRC PRIVMSG and checks for URLs"""
maxlen = int(weechat.get_plugin_config( "urllength" ))
activeChans = weechat.get_plugin_config('activechans').split(',')
onlyActiveChans = weechat.get_plugin_config('printall') == "off"
(source, type, channel, msg) = args.split(" ", 3)
if onlyActiveChans and channel not in activeChans:
return weechat.PLUGIN_RC_OK
if not channel.startswith("#"):
channel = source.split("!", 2)[0][1:]
urlstart = tinyurlFindUrlstart( msg )
while urlstart > -1 and urlstart is not None:
urlend = tinyurlFindUrlend( msg, urlstart )
url = msg[urlstart:urlend]
if len(url) >= maxlen:
tinyurlGetUrl(url, channel, server)
# Check for more URLs
urlstart = tinyurlFindUrlstart( msg, urlend+1 )
return weechat.PLUGIN_RC_OK
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