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280 lines (224 loc) · 9.47 KB
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# -*- coding: utf-8 -*-
# Copyright (c) 2010 by Jani Kesänen <jani.kesanen@gmail.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 3 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, see <http://www.gnu.org/licenses/>.
#
#
# Google Weather to bar item
# (This script requires WeeChat 0.3.0.)
#
# Usage: Add "gweather" to weechat.bar.status.items or other bar you like.
# Specify city: "/set plugins.var.python.gweather.city Tokyo".
#
# Formatting: "/set plugins.var.python.gweather.format %C: %D°%U, %O".
# Where: %C - city
# %D - temperature degrees
# %U - temperature unit
# %O - current condition
#
# History:
# 2011-03-11, Sebastien Helleu <flashcode@flashtux.org>:
# version 0.4: get python 2.x binary for hook_process (fix problem when
# python 3.x is default python version)
# 2010-04-15, jkesanen <jani.kesanen@gmail.com>
# version 0.3: - added output formatting
# - removed output and city color related options
# 2010-04-09, jkesanen <jani.kesanen@gmail.com>
# version 0.2.1: - added support for different languages
# 2010-04-07, jkesanen <jani.kesanen@gmail.com>
# version 0.2: - fetch weather using non-blocking hook_process interface
# 2010-04-06, jkesanen <jani.kesanen@gmail.com>
# version 0.1: - initial release.
#
import weechat
from urllib import quote
from xml.dom import minidom
from time import time
from sys import version_info
SCRIPT_NAME = "gweather"
SCRIPT_AUTHOR = "Jani Kesänen <jani.kesanen@gmail.com>"
SCRIPT_VERSION = "0.4"
SCRIPT_LICENSE = "GPL3"
SCRIPT_DESC = "Bar item with current Google weather"
# Script options
settings = {
# City to monitor (ex. "Tokyo", "Austin, Texas", ...)
'city' : '',
# Language of the conditions (ex. en, ja, fi, fr, ...)
'language' : 'en',
# Temperature units (C or F)
'unit' : 'C',
# Update interval in minutes
'interval' : '10',
# Timeout in seconds for fetching weather data
'timeout' : '10',
# The color of the output
'output_color' : 'white',
# Formatting (%C = city, %D = degrees, %U = unit, %O = condition)
'format' : '%C: %D%U, %O',
}
# Timestamp for the last update
last_run = 0
# The last city, language and format for the need of refresh
last_city = ''
last_lang = ''
last_format = ''
# Cached copy of the last successful output
gweather_output = 'WAIT'
gweather_hook_process = ''
gweather_stdout = ''
# The url to Google's "unofficial" weather API
GOOGLE_WEATHER_URL = 'http://www.google.com/ig/api?weather=%s&hl=%s'
def parse_google_weather(xml_response):
'''
Parses weather report from Google
This uses code from python-weather-api 0.2.2 by Eugene Kaznacheev <qetzal@gmail.com>.
Returns:
weather_data: a dictionary of weather data that exists in XML feed.
'''
try:
dom = minidom.parseString(xml_response)
weather_data = {}
weather_dom = dom.getElementsByTagName('weather')[0]
except:
return
data_structure = {
'forecast_information': ('city', 'postal_code', 'latitude_e6', 'longitude_e6', 'forecast_date', 'current_date_time', 'unit_system'),
'current_conditions': ('condition','temp_f', 'temp_c', 'humidity', 'wind_condition', 'icon')
}
for (tag, list_of_tags2) in data_structure.iteritems():
tmp_conditions = {}
for tag2 in list_of_tags2:
try:
tmp_conditions[tag2] = weather_dom.getElementsByTagName(tag)[0].getElementsByTagName(tag2)[0].getAttribute('data').strip()
except IndexError:
pass
weather_data[tag] = tmp_conditions
dom.unlink()
return weather_data
def format_weather(weather_data):
'''
Formats the weather data dictionary received from Google
Returns:
output: a string of formatted weather data.
'''
output = weechat.color(weechat.config_get_plugin('output_color')) + weechat.config_get_plugin('format')
output = output.replace('%C', weechat.config_get_plugin('city'))
temp = 'N/A'
condition = 'N/A'
if weather_data:
if len(weather_data['current_conditions']):
if weechat.config_get_plugin('unit') == 'F':
temp = weather_data['current_conditions']['temp_f'].encode('utf-8')
else:
temp = weather_data['current_conditions']['temp_c'].encode('utf-8')
if weather_data['current_conditions'].has_key('condition'):
condition = weather_data['current_conditions']['condition'].encode('utf-8')
output = output.replace('%D', temp)
output = output.replace('%O', condition)
output = output.replace('%U', weechat.config_get_plugin('unit'))
output += weechat.color('reset')
return output
def gweather_data_cb(data, command, rc, stdout, stderr):
'''
Callback for the data fetching process.
'''
global last_city, last_lang, last_run, last_format
global gweather_hook_process, gweather_stdout, gweather_output
if rc == weechat.WEECHAT_HOOK_PROCESS_ERROR or stderr != '':
weechat.prnt('', '%sgweather: Weather information fetching failed: %s' % (\
weechat.prefix("error"), stderr))
return weechat.WEECHAT_RC_ERROR
if stdout:
gweather_stdout += stdout
if int(rc) < 0:
# Process not ready
return weechat.WEECHAT_RC_OK
# Update status variables for succesful run
last_run = time()
last_city = weechat.config_get_plugin('city')
last_lang = weechat.config_get_plugin('language')
last_format = weechat.config_get_plugin('format')
gweather_hook_process = ''
if not gweather_stdout:
return weechat.WEECHAT_RC_OK
try:
# The first row should contain "content-type" from HTTP header
content_type, xml_response = gweather_stdout.split('\n', 1)
except:
# Failed to split received data in two at carridge return
weechat.prnt('', '%sgweather: Invalid data received' % (weechat.prefix("error")))
gweather_stdout = ''
return weechat.WEECHAT_RC_ERROR
gweather_stdout = ''
# Determine the used character set in the response
try:
charset = content_type.split('charset=')[1]
except:
charset = 'utf-8'
if charset.lower() != 'utf-8':
xml_response = xml_response.decode(charset).encode('utf-8')
# Feed the respose to parser and parsed data to formatting
weather_data = parse_google_weather(xml_response)
gweather_output = format_weather(weather_data)
# Request bar item to update to the latest "gweather_output"
weechat.bar_item_update('gweather')
return weechat.WEECHAT_RC_OK
def gweather_cb(*kwargs):
''' Callback for the Google weather bar item. '''
global last_run, last_city, last_lang, last_format
global gweather_output, gweather_hook_process
# Nag if user has not specified the city
if not weechat.config_get_plugin('city'):
return 'SET CITY'
# Nag if user has not specified the language
if not weechat.config_get_plugin('language'):
return 'SET LANGUAGE'
# Use cached copy if it is updated recently enough
if weechat.config_get_plugin('city') == last_city and \
weechat.config_get_plugin('language') == last_lang and \
weechat.config_get_plugin('format') == last_format and \
(time() - last_run) < (int(weechat.config_get_plugin('interval')) * 60):
return gweather_output
location_id, hl = map(quote, (weechat.config_get_plugin('city'), \
weechat.config_get_plugin('language')))
url = GOOGLE_WEATHER_URL % (location_id, hl)
command = 'urllib2.urlopen(\'%s\')' % (url)
if gweather_hook_process != "":
weechat.unhook(gweather_hook_process)
gweather_hook_process = ''
# Fire up the weather informationg fetching
python2_bin = weechat.info_get("python2_bin", "") or "python"
gweather_hook_process = weechat.hook_process(\
python2_bin + " -c \"import urllib2;\
handler = " + command + ";\
print handler.info().dict['content-type'];\
print handler.read();\
handler.close();\"",
int(weechat.config_get_plugin('timeout')) * 1000, "gweather_data_cb", "")
# The old cached string is returned here. gweather_data_cb() will
# request a new update after the data is fetched and parsed.
return gweather_output
def gweather_update(*kwargs):
weechat.bar_item_update('gweather')
return weechat.WEECHAT_RC_OK
if weechat.register(SCRIPT_NAME, SCRIPT_AUTHOR, SCRIPT_VERSION, SCRIPT_LICENSE,
SCRIPT_DESC, '', ''):
for option, default_value in settings.iteritems():
if not weechat.config_is_set_plugin(option):
weechat.config_set_plugin(option, default_value)
weechat.bar_item_new('gweather', 'gweather_cb', '')
weechat.bar_item_update('gweather')
weechat.hook_timer(int(weechat.config_get_plugin('interval')) * 1000 * 60,
0, 0, 'gweather_update', '')
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