2004-07-20 05:51:56 +02:00
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###
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# Copyright (c) 2004, James Vega
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions, and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions, and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the author of this software nor the name of
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# contributors to this software may be used to endorse or promote products
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# derived from this software without specific prior written consent.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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###
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"""
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Provides commands which interface with various websites to perform currency
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conversions.
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"""
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2004-09-01 08:06:54 +02:00
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import supybot
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2004-07-20 05:51:56 +02:00
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__revision__ = "$Id$"
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2004-09-01 08:06:54 +02:00
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__author__ = supybot.authors.jamessan
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2004-07-20 05:51:56 +02:00
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import re
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2004-07-24 07:18:26 +02:00
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import supybot.conf as conf
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import supybot.utils as utils
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2004-11-20 00:54:14 +01:00
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from supybot.commands import *
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2004-07-24 07:18:26 +02:00
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import supybot.ircutils as ircutils
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import supybot.registry as registry
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import supybot.webutils as webutils
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import supybot.callbacks as callbacks
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2004-07-20 05:51:56 +02:00
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class CurrencyCommand(registry.String):
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def setValue(self, s):
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m = Currency.currencyCommands
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if s not in m:
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raise registry.InvalidRegistryValue,\
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2004-08-24 14:10:18 +02:00
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'Command must be one of %s.' % utils.commaAndify(m)
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2004-07-20 05:51:56 +02:00
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else:
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method = getattr(Currency, s)
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Currency.convert.im_func.__doc__ = method.__doc__
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registry.String.setValue(self, s)
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class Currency(callbacks.Privmsg):
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currencyCommands = ['xe', 'yahoo']
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threaded = True
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2004-08-24 14:10:18 +02:00
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_symbolError = 'Currency must be denoted by its three-letter symbol.'
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2004-07-20 05:51:56 +02:00
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def convert(self, irc, msg, args):
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# This specifically does not have a docstring.
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channel = None
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if ircutils.isChannel(msg.args[0]):
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channel = msg.args[0]
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realCommandName = self.registryValue('command', channel)
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realCommand = getattr(self, realCommandName)
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realCommand(irc, msg, args)
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_xeCurrError = re.compile(r'The following error occurred:<BR><BR>\s+'
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r'(.*)</body>', re.I | re.S)
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_xeConvert = re.compile(r'<TD[^>]+><FONT[^>]+>\s+([\d.]+\s+\w{3}\s+='
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r'\s+[\d.]+\s+\w{3})', re.I | re.S)
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2004-11-21 14:18:58 +01:00
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def xe(self, irc, msg, args, number, curr1, curr2):
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2004-11-20 00:54:14 +01:00
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"""[<number>] <currency1> [to] <currency2>
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2004-07-20 05:51:56 +02:00
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Converts from <currency1> to <currency2>. If number isn't given, it
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defaults to 1.
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"""
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2004-08-16 05:34:36 +02:00
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if len(curr1) != 3 and len(curr2) != 3:
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2004-07-20 05:51:56 +02:00
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irc.error(self._symbolError)
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return
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url = 'http://www.xe.com/ucc/convert.cgi?Amount=%s&From=%s&To=%s'
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try:
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text = webutils.getUrl(url % (number, curr1, curr2))
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except webutils.WebError, e:
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irc.error(str(e))
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return
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err = self._xeCurrError.search(text)
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if err is not None:
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irc.error('You used an incorrect currency symbol.')
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return
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conv = self._xeConvert.search(text)
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if conv is not None:
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2004-08-16 05:34:36 +02:00
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resp = conv.group(1).split()
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resp[0] = str(float(resp[0]) * number)
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if resp[0].endswith('.0'):
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resp[0] = '%s.00' % resp[0][:-2]
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resp[3] = str(float(resp[3]) * number)
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irc.reply(' '.join(resp))
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2004-07-20 05:51:56 +02:00
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return
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else:
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irc.error('XE must\'ve changed the format of their site.')
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return
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2004-11-21 14:18:58 +01:00
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xe = wrap(xe, [optional('float', 1.0), 'lowered', 'to', 'lowered'])
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2004-07-20 05:51:56 +02:00
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2004-11-21 14:18:58 +01:00
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def yahoo(self, irc, msg, args, number, curr1, curr2):
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2004-07-20 05:51:56 +02:00
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"""[<number>] <currency1> to <currency2>
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Converts from <currency1> to <currency2>. If number isn't given, it
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defaults to 1.
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"""
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2004-08-16 05:34:36 +02:00
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if len(curr1) != 3 and len(curr2) != 3:
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2004-07-20 05:51:56 +02:00
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irc.error(self._symbolError)
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return
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2004-08-20 21:07:51 +02:00
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url = r'http://finance.yahoo.com/d/quotes.csv?'\
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r's=%s%s=X&f=sl1d1t1ba&e=.csv' % (curr1, curr2)
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2004-07-20 05:51:56 +02:00
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try:
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2004-08-20 21:07:51 +02:00
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text = webutils.getUrl(url)
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2004-07-20 05:51:56 +02:00
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except webutils.WebError, e:
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irc.error(str(e))
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return
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2004-08-20 21:07:51 +02:00
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if 'N/A' in text:
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irc.error('You used an incorrect currency symbol.')
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2004-07-20 05:51:56 +02:00
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return
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2004-08-20 21:07:51 +02:00
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conv = text.split(',')[1]
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conv = number * float(conv)
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resp = [str(number), curr1.upper(), '=', str(conv), curr2.upper()]
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if '.' not in resp[0] and 'e' not in resp[0]:
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resp[0] = '%s.00' % resp[0]
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irc.reply(' '.join(resp))
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2004-11-22 08:33:35 +01:00
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yahoo = wrap(yahoo, [optional('float', 1.0), 'lowered', 'to', 'lowered'])
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2004-07-20 05:51:56 +02:00
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conf.registerPlugin('Currency')
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conf.registerChannelValue(conf.supybot.plugins.Currency, 'command',
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2004-08-16 05:34:36 +02:00
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CurrencyCommand('yahoo', """Sets the default command to use when retrieving
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2004-07-20 05:51:56 +02:00
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the currency conversion. Command must be one of %s.""" %
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utils.commaAndify(Currency.currencyCommands, And='or')))
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Class = Currency
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# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78:
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