mirror of
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123 lines
4.5 KiB
Python
123 lines
4.5 KiB
Python
###
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# Copyright (c) 2019, James Lu <james@overdrivenetworks.com>
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# Copyright (c) 2020, oddluck <oddluck@riseup.net>
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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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accountsdb: Provides storage for user-specific data via Supybot accounts, ident@host, or nicks.
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"""
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import pickle
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from supybot import ircdb, log, conf, registry
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MODES = ["accounts", "identhost", "nicks"]
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DEFAULT_MODE = MODES[2]
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class _AccountsDBAddressConfig(registry.OnlySomeStrings):
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validStrings = MODES
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CONFIG_OPTION_NAME = "DBAddressingMode"
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CONFIG_OPTION = _AccountsDBAddressConfig(
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DEFAULT_MODE,
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"""Sets the DB addressing mode.
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This requires reloading the plugin to take effect. Valid settings include accounts
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(save users by Supybot accounts and ident@host if not registered), identhost
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(save users by ident@host), and nicks (save users by nicks).
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When changing addressing modes, existing keys will be left intact, but migration between
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addressing modes is NOT supported.""",
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)
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class AccountsDB:
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"""
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Abstraction to map users to third-party account names.
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This stores users by their bot account first, falling back to their
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ident@host if they are not logged in.
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"""
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def __init__(self, plugin_name, filename, addressing_mode=DEFAULT_MODE):
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"""
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Loads the existing database, creating a new one in memory if none
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exists.
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"""
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self.db = {}
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self._plugin_name = plugin_name
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self.filename = conf.supybot.directories.data.dirize(filename)
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self.addressing_mode = addressing_mode
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try:
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with open(self.filename, "rb") as f:
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self.db = pickle.load(f)
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except Exception as e:
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log.debug(
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"%s: Unable to load database, creating a new one: %s",
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self._plugin_name,
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e,
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)
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def flush(self):
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"""Exports the database to a file."""
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try:
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with open(self.filename, "wb") as f:
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pickle.dump(self.db, f, 2)
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except Exception as e:
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log.warning("%s: Unable to write database: %s", self._plugin_name, e)
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def _get_key(self, prefix):
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nick, identhost = prefix.split("!", 1)
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if self.addressing_mode == "accounts":
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try: # Try to first look up the caller as a bot account.
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userobj = ircdb.users.getUser(prefix)
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return userobj.name
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except KeyError: # If that fails, store them by nick@host.
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return identhost
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elif self.addressing_mode == "identhost":
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return identhost
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elif self.addressing_mode == "nicks":
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return nick
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else:
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raise ValueError("Unknown addressing mode %r" % self.addressing_mode)
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def set(self, prefix, newId):
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"""Sets a user ID given the user's prefix."""
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user = self._get_key(prefix)
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self.db[user] = newId
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def get(self, prefix):
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"""Sets a user ID given the user's prefix."""
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user = self._get_key(prefix)
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# Automatically returns None if entry does not exist
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return self.db.get(user)
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