mirror of
https://github.com/Mikaela/Limnoria.git
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500 lines
19 KiB
Python
500 lines
19 KiB
Python
###
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# Copyright (c) 2013, Valentin Lorentz
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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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import re
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import os
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import sys
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import datetime
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import supybot.utils as utils
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import supybot.ircdb as ircdb
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from supybot.commands import *
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import supybot.plugins as plugins
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import supybot.ircutils as ircutils
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import supybot.callbacks as callbacks
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from supybot.i18n import PluginInternationalization
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_ = PluginInternationalization('Aka')
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try:
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import sqlalchemy
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import sqlalchemy.ext
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import sqlalchemy.ext.declarative
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except ImportError:
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sqlalchemy = None
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if sqlalchemy:
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Base = sqlalchemy.ext.declarative.declarative_base()
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class Alias(Base):
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__tablename__ = 'aliases'
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id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True)
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name = sqlalchemy.Column(sqlalchemy.String, unique=True, nullable=False)
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alias = sqlalchemy.Column(sqlalchemy.String, nullable=False)
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locked = sqlalchemy.Column(sqlalchemy.Boolean, nullable=False)
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locked_by = sqlalchemy.Column(sqlalchemy.String, nullable=True)
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locked_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=True)
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def __init__(self, name, alias):
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self.name = name
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self.alias = alias
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self.locked = False
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self.locked_by = None
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self.locked_at = None
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def __repr__(self):
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return "<Alias('%r', '%r')>" % (self.name, self.alias)
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# TODO: Add table for usage statistics
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class SqlAlchemyAkaDB(object):
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def __init__(self, filename):
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self.engines = ircutils.IrcDict()
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self.filename = filename
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self.sqlalchemy = sqlalchemy
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def close(self):
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self.dbs.clear()
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def get_db(self, channel):
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if channel in self.engines:
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engine = self.engines[channel]
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else:
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filename = plugins.makeChannelFilename(self.filename, channel)
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exists = os.path.exists(filename)
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engine = sqlalchemy.create_engine('sqlite:///' + filename)
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if not exists:
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Base.metadata.create_all(engine)
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self.engines[channel] = engine
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assert engine.execute("select 1").scalar() == 1
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Session = sqlalchemy.orm.sessionmaker()
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Session.configure(bind=engine)
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return Session()
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def has_aka(self, channel, name):
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name = callbacks.canonicalName(name)
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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count = self.get_db(channel).query(Alias) \
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.filter(Alias.name == name) \
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.count()
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return bool(count)
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def get_aka_list(self, channel):
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list_ = list(self.get_db(channel).query(Alias.name))
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return list_
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def get_alias(self, channel, name):
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name = callbacks.canonicalName(name)
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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try:
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return self.get_db(channel).query(Alias.alias) \
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.filter(Alias.name == name).one()[0]
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except sqlalchemy.orm.exc.NoResultFound:
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return None
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def add_aka(self, channel, name, alias):
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name = callbacks.canonicalName(name)
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if self.has_aka(channel, name):
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raise AkaError(_('This Aka already exists.'))
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if sys.version_info[0] < 3:
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if isinstance(name, str):
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name = name.decode('utf8')
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if isinstance(alias, str):
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alias = alias.decode('utf8')
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db = self.get_db(channel)
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db.add(Alias(name, alias))
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db.commit()
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def remove_aka(self, channel, name):
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name = callbacks.canonicalName(name)
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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db = self.get_db(channel)
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db.query(Alias).filter(Alias.name == name).delete()
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db.commit()
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def lock_aka(self, channel, name, by):
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name = callbacks.canonicalName(name)
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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db = self.get_db(channel)
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try:
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aka = db.query(Alias) \
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.filter(Alias.name == name).one()
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except sqlalchemy.orm.exc.NoResultFound:
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raise AkaError(_('This Aka does not exist'))
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if aka.locked:
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raise AkaError(_('This Aka is already locked.'))
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aka.locked = True
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aka.locked_by = by
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aka.locked_at = datetime.datetime.now()
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db.commit()
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def unlock_aka(self, channel, name, by):
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name = callbacks.canonicalName(name)
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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db = self.get_db(channel)
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try:
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aka = db.query(Alias) \
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.filter(Alias.name == name).one()
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except sqlalchemy.orm.exc.NoResultFound:
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raise AkaError(_('This Aka does not exist'))
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if not aka.locked:
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raise AkaError(_('This Aka is already unlocked.'))
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aka.locked = False
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aka.locked_by = by
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aka.locked_at = datetime.datetime.now()
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db.commit()
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def get_aka_lock(self, channel, name):
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name = callbacks.canonicalName(name)
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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try:
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return self.get_db(channel) \
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.query(Alias.locked, Alias.locked_by, Alias.locked_at)\
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.filter(Alias.name == name).one()
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except sqlalchemy.orm.exc.NoResultFound:
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raise AkaError(_('This Aka does not exist'))
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def getArgs(args, required=1, optional=0, wildcard=0):
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if len(args) < required:
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raise callbacks.ArgumentError
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if len(args) < required + optional:
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ret = list(args) + ([''] * (required + optional - len(args)))
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elif len(args) >= required + optional:
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if not wildcard:
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ret = list(args[:required + optional - 1])
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ret.append(' '.join(args[required + optional - 1:]))
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else:
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ret = list(args)
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return ret
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class AkaError(Exception):
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pass
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class RecursiveAlias(AkaError):
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pass
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dollarRe = re.compile(r'\$(\d+)')
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def findBiggestDollar(alias):
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dollars = dollarRe.findall(alias)
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dollars = map(int, dollars)
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dollars.sort()
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if dollars:
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return dollars[-1]
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else:
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return 0
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atRe = re.compile(r'@(\d+)')
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def findBiggestAt(alias):
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ats = atRe.findall(alias)
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ats = map(int, ats)
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ats.sort()
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if ats:
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return ats[-1]
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else:
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return 0
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AkaDB = plugins.DB('Aka', {'sqlalchemy': SqlAlchemyAkaDB})
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class Aka(callbacks.Plugin):
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"""Add the help for "@plugin help Aka" here
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This should describe *how* to use this plugin."""
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def __init__(self, irc):
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self.__parent = super(Aka, self)
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self.__parent.__init__(irc)
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self._db = AkaDB()
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def isCommandMethod(self, name):
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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channel = dynamic.channel or 'global'
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return self._db.has_aka(channel, name) or \
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self._db.has_aka('global', name) or \
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self.__parent.isCommandMethod(name)
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isCommand = isCommandMethod
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def listCommands(self):
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channel = dynamic.channel or 'global'
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return list(set(map(callbacks.formatCommand,
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self._db.get_aka_list(channel) +
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self._db.get_aka_list('global')) +
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self.__parent.listCommands()))
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def getCommand(self, args):
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canonicalName = callbacks.canonicalName
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# All the code from here to the 'for' loop is copied from callbacks.py
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assert args == map(canonicalName, args)
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first = args[0]
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for cb in self.cbs:
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if first == cb.canonicalName():
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return cb.getCommand(args)
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if first == self.canonicalName() and len(args) > 1:
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ret = self.getCommand(args[1:])
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if ret:
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return [first] + ret
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for i in xrange(len(args), 0, -1):
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if self.isCommandMethod(callbacks.formatCommand(args[0:i])):
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return args[0:i]
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return []
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def getCommandMethod(self, command):
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if len(command) == 1 or command[0] == self.canonicalName():
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try:
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return self.__parent.getCommandMethod(command)
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except AttributeError:
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pass
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name = callbacks.formatCommand(command)
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channel = dynamic.channel or 'global'
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original = self._db.get_alias(channel, name)
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if not original:
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original = self._db.get_alias('global', name)
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biggestDollar = findBiggestDollar(original)
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biggestAt = findBiggestAt(original)
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wildcard = '$*' in original
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def f(irc, msg, args):
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tokens = callbacks.tokenize(original)
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if biggestDollar or biggestAt:
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args = getArgs(args, required=biggestDollar, optional=biggestAt,
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wildcard=wildcard)
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def regexpReplace(m):
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idx = int(m.group(1))
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return args[idx-1]
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def replace(tokens, replacer):
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for (i, token) in enumerate(tokens):
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if isinstance(token, list):
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replace(token, replacer)
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else:
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tokens[i] = replacer(token)
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replace(tokens, lambda s: dollarRe.sub(regexpReplace, s))
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args = args[biggestDollar:]
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if biggestAt:
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replace(tokens, lambda s: atRe.sub(regexpReplace, s))
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if wildcard:
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def everythingReplace(tokens):
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ret = False
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new_tokens = []
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for (i, token) in enumerate(tokens):
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if isinstance(token, list):
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(sub_ret, sub_tokens) = everythingReplace(token)
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new_tokens.append(sub_tokens)
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if sub_ret:
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continue
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if token == '$*':
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new_tokens.extend(args)
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ret = True
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else:
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new_tokens.append(
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token.replace('$*', ' '.join(args)))
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ret = True
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return (ret, new_tokens)
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(ret, tokens) = everythingReplace(tokens)
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self.Proxy(irc, msg, tokens)
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if biggestDollar and (wildcard or biggestAt):
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flexargs = _(' at least')
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else:
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flexargs = ''
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try:
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lock = self._db.get_aka_lock(channel, name)
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except AkaError:
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lock = self._db.get_aka_lock('global', name)
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(locked, locked_by, locked_at) = lock
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if locked:
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lock = ' ' + _('Locked by %s at %s') % (locked_by, locked_at)
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else:
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lock = ''
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doc = format(_('<an alias,%s %n>\n\nAlias for %q.%s'),
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flexargs, (biggestDollar, _('argument')), original, lock)
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f = utils.python.changeFunctionName(f, name, doc)
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return f
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def _add_aka(self, channel, name, alias):
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if self.__parent.isCommandMethod(name):
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raise AkaError(_('You can\'t overwrite commands in '
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'this plugin.'))
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if self._db.has_aka(channel, name):
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raise AkaError(_('This Aka already exists.'))
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biggestDollar = findBiggestDollar(alias)
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biggestAt = findBiggestAt(alias)
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wildcard = '$*' in alias
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self._db.add_aka(channel, name, alias)
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def _remove_aka(self, channel, name, evenIfLocked=False):
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if not evenIfLocked:
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(locked, by, at) = self._db.get_aka_lock(channel, name)
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if locked:
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raise AkaError(_('This Aka is locked.'))
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self._db.remove_aka(channel, name)
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def add(self, irc, msg, args, optlist, name, alias):
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"""[--channel <#channel>] <name> <command>
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Defines an alias <name> that executes <command>. The <command>
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should be in the standard "command argument [nestedcommand argument]"
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arguments to the alias; they'll be filled with the first, second, etc.
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arguments. $1, $2, etc. can be used for required arguments. @1, @2,
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etc. can be used for optional arguments. $* simply means "all
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arguments that have not replaced $1, $2, etc.", ie. it will also
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include optional arguments.
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"""
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channel = 'global'
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for (option, arg) in optlist:
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if option == 'channel':
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if not ircutils.isChannel(arg):
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irc.error(_('%r is not a valid channel.') % arg,
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Raise=True)
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channel = arg
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if ' ' not in alias:
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# If it's a single word, they probably want $*.
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alias += ' $*'
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try:
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self._add_aka(channel, name, alias)
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self.log.info('Adding Aka %r for %r (from %s)',
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name, alias, msg.prefix)
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irc.replySuccess()
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except AkaError as e:
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irc.error(str(e))
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add = wrap(add, [getopts({
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'channel': 'somethingWithoutSpaces',
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}), 'something', 'text'])
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def remove(self, irc, msg, args, optlist, name):
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"""[--channel <#channel>] <name>
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Removes the given alias, if unlocked.
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"""
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channel = 'global'
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for (option, arg) in optlist:
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if option == 'channel':
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if not ircutils.isChannel(arg):
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irc.error(_('%r is not a valid channel.') % arg,
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Raise=True)
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channel = arg
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try:
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self._remove_aka(channel, name)
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self.log.info('Removing Aka %r (from %s)', name, msg.prefix)
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irc.replySuccess()
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except AkaError as e:
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irc.error(str(e))
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remove = wrap(remove, [getopts({
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'channel': 'somethingWithoutSpaces',
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}), 'something'])
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def _checkManageCapabilities(self, irc, msg, channel):
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"""Check if the user has any of the required capabilities to manage
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the regexp database."""
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if channel != 'global':
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capability = ircdb.makeChannelCapability(channel, 'op')
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else:
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capability = 'admin'
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if not ircdb.checkCapability(msg.prefix, capability):
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irc.errorNoCapability(capability, Raise=True)
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def lock(self, irc, msg, args, optlist, user, name):
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"""[--channel <#channel>] <alias>
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Locks an alias so that no one else can change it.
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"""
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channel = 'global'
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for (option, arg) in optlist:
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if option == 'channel':
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if not ircutils.isChannel(arg):
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irc.error(_('%r is not a valid channel.') % arg,
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Raise=True)
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channel = arg
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self._checkManageCapabilities(irc, msg, channel)
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try:
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self._db.lock_aka(channel, name, user.name)
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except AkaError as e:
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irc.error(str(e))
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else:
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irc.replySuccess()
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lock = wrap(lock, [getopts({
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'channel': 'somethingWithoutSpaces',
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}), 'user', 'something'])
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def unlock(self, irc, msg, args, optlist, user, name):
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"""[--channel <#channel>] <alias>
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Unlocks an alias so that people can define new aliases over it.
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"""
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channel = 'global'
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for (option, arg) in optlist:
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if option == 'channel':
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if not ircutils.isChannel(arg):
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irc.error(_('%r is not a valid channel.') % arg,
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Raise=True)
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channel = arg
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self._checkManageCapabilities(irc, msg, channel)
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try:
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self._db.unlock_aka(channel, name, user.name)
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except AkaError as e:
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irc.error(str(e))
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else:
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irc.replySuccess()
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unlock = wrap(unlock, [getopts({
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'channel': 'somethingWithoutSpaces',
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}), 'user', 'something'])
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def importaliasdatabase(self, irc, msg, args):
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"""takes no arguments
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Imports the Alias database into Aka's, and clean the former."""
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alias_plugin = irc.getCallback('Alias')
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if alias_plugin is None:
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irc.error(_('Alias plugin is not loaded.'), Raise=True)
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errors = {}
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for (name, (command, locked, func)) in alias_plugin.aliases.items():
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try:
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self._add_aka('global', name, command)
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except AkaError as e:
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errors[name] = e.args[0]
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else:
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alias_plugin.removeAlias(name, evenIfLocked=True)
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if errors:
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irc.error(format(_('Error occured when importing the %n: %L'),
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(len(errors), 'following', 'command'),
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map(lambda x:'%s (%s)' % x, errors.items())))
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else:
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irc.replySuccess()
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importaliasdatabase = wrap(importaliasdatabase, ['owner'])
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Class = Aka
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# vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79:
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