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Limnoria/plugins/Weather.py

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#!/usr/bin/env python
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###
# Copyright (c) 2002, Jeremiah Fincher
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions, and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions, and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the author of this software nor the name of
# contributors to this software may be used to endorse or promote products
# derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
###
"""
This plugin does weather-related stuff.
"""
import plugins
import re
import sets
import utils
import webutils
import privmsgs
import callbacks
class Weather(callbacks.Privmsg):
threaded = True
def callCommand(self, method, irc, msg, *L):
try:
callbacks.Privmsg.callCommand(self, method, irc, msg, *L)
except webutils.WebError, e:
irc.error(str(e))
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_cityregex = re.compile(
r'<td><font size="4" face="arial"><b>'
r'(.*?), (.*?),(.*?)</b></font></td>', re.I)
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_interregex = re.compile(
r'<td><font size="4" face="arial"><b>'
r'([^,]+), ([^<]+)</b></font></td>', re.I)
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_condregex = re.compile(
r'<td width="100%" colspan="2" align="center"><strong>'
r'<font face="arial">([^<]+)</font></strong></td>', re.I)
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_tempregex = re.compile(
r'<td valign="top" align="right"><strong><font face="arial">'
r'([^<]+)</font></strong></td>', re.I)
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_chillregex = re.compile(
r'Wind Chill</font></strong>:</small></a></td>\s+<td align="right">'
r'<small><font face="arial">([^N][^<]+)</font></small></td>',
re.I | re.S)
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_heatregex = re.compile(
r'Heat Index</font></strong>:</small></a></td>\s+<td align="right">'
r'<small><font face="arial">([^N][^<]+)</font></small></td>',
re.I | re.S)
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# States
_realStates = sets.Set(['ak', 'al', 'ar', 'az', 'ca', 'co', 'ct',
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'dc', 'de', 'fl', 'ga', 'hi', 'ia', 'id',
'il', 'in', 'ks', 'ky', 'la', 'ma', 'md',
'me', 'mi', 'mn', 'mo', 'ms', 'mt', 'nc',
'nd', 'ne', 'nh', 'nj', 'nm', 'nv', 'ny',
'oh', 'ok', 'or', 'pa', 'ri', 'sc', 'sd',
'tn', 'tx', 'ut', 'va', 'vt', 'wa', 'wi',
'wv', 'wy'])
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# Provinces. (Province being a metric state measurement mind you. :D)
_fakeStates = sets.Set(['ab', 'bc', 'mb', 'nb', 'nf', 'ns', 'nt',
'nu', 'on', 'pe', 'qc', 'sk', 'yk'])
# Certain countries are expected to use a standard abbreviation
# The weather we pull uses weird codes. Map obvious ones here.
_countryMap = {'uk': 'gb'}
def weather(self, irc, msg, args):
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"""<US zip code | US/Canada city, state | Foreign city, country>
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Returns the approximate weather conditions for a given city.
"""
#If we received more than one argument, then we have received
#a city and state argument that we need to process.
if len(args) > 1:
#If we received more than 1 argument, then we got a city with a
#multi-word name. ie ['Garden', 'City', 'KS'] instead of
#['Liberal', 'KS']. We join it together with a + to pass
#to our query
state = args.pop()
state = state.lower()
city = '+'.join(args)
city = city.rstrip(',')
city = city.lower()
#We must break the States up into two sections. The US and
#Canada are the only countries that require a State argument.
if state in self._realStates:
country = 'us'
elif state in self._fakeStates:
country = 'ca'
else:
country = state
state = ''
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if country in self._countryMap.keys():
country = self._countryMap[country]
url = 'http://www.hamweather.net/cgi-bin/hw3/hw3.cgi?' \
'pass=&dpp=&forecast=zandh&config=&' \
'place=%s&state=%s&country=%s' % (city, state, country)
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html = webutils.getUrl(url)
if 'was not found' in html:
url = 'http://www.hamweather.net/cgi-bin/hw3/hw3.cgi?' \
'pass=&dpp=&forecast=zandh&config=&' \
'place=%s&state=&country=%s' % (city, state)
html = webutils.getUrl(url)
if 'was not found' in html: # Still.
irc.error('No such location could be found.')
return
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#We received a single argument. Zipcode or station id.
else:
zip = privmsgs.getArgs(args)
zip = zip.replace(',', '')
zip = zip.lower().split()
url = 'http://www.hamweather.net/cgi-bin/hw3/hw3.cgi?' \
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'config=&forecast=zandh&pands=%s&Submit=GO' % args[0]
html = webutils.getUrl(url)
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if 'was not found' in html:
irc.error('No such location could be found.')
return
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headData = self._cityregex.search(html)
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if headData is not None:
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(city, state, country) = headData.groups()
else:
headData = self._interregex.search(html)
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if headData:
(city, state) = headData.groups()
else:
irc.error('No such location could be found.')
return
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city = city.strip()
state = state.strip()
temp = self._tempregex.search(html)
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if temp is not None:
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temp = temp.group(1)
conds = self._condregex.search(html)
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if conds is not None:
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conds = conds.group(1)
index = ''
chill = self._chillregex.search(html)
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if chill is not None:
#self.log.warning(chill.groups())
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chill = chill.group(1)
if int(chill[:-2]) < int(temp[:-2]):
index = ' (Wind Chill: %s)' % chill
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heat = self._heatregex.search(html)
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if heat is not None:
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heat = heat.group(1)
if int(heat[:-2]) > int(temp[:-2]):
index = ' (Heat Index: %s)' % heat
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if temp and conds and city and state:
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conds = conds.replace('Tsra', 'Thunderstorms')
s = 'The current temperature in %s, %s is %s%s. Conditions: %s.'% \
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(city, state, temp, index, conds)
irc.reply(s)
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else:
irc.error('The format of the page was odd.')
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Class = Weather
# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78: