133 lines
3.8 KiB
Python
133 lines
3.8 KiB
Python
# -*- coding: utf-8 -*-
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import re
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from docopt import Dict
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from irc3.plugins.command import Commands, command
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from irc3.utils import IrcString
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from psycopg2 import Error
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from . import DatabasePlugin, Bot
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from .utils import parse_int
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class Quotes(DatabasePlugin):
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def __init__(self, bot: Bot):
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super().__init__(bot)
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self.guard = bot.get_plugin(Commands).guard
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def add_quote(self, mask: IrcString, nick: str, quote: str, channel: IrcString):
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# Parse nick from "<@foobar>" like strings
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nick = re.match(r'<?[~&@%+]?([a-zA-Z0-9_\-^`|\\\[\]{}]+)>?', nick).group(1)
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if not nick:
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self.bot.notice(mask.nick, '[Quotes] Error parsing nick')
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else:
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# Insert quote into database
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self.cur.execute('''
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INSERT INTO
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quotes (nick, item, channel, created_by)
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VALUES
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(%s, %s, %s, %s)
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''', [nick, quote, channel, mask.nick])
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def delete_quote(self, nick: str, quote: str):
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index, order = parse_int(quote, select=False)
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if index:
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# Delete from database
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self.cur.execute('''
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-- noinspection SqlResolve
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WITH ranked_quotes AS (
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SELECT
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id,
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rank() OVER (PARTITION BY nick ORDER BY id {order})
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FROM
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quotes
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WHERE
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lower(nick) = lower(%s)
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)
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-- noinspection SqlResolve
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DELETE FROM
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quotes
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WHERE
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id = (
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SELECT
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id
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FROM
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ranked_quotes
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WHERE
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rank = %s
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)
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'''.format(order=order), [nick, index])
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@command(options_first=True)
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def q(self, mask: IrcString, target: IrcString, args: Dict):
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"""Get, add or delete quotes for an user
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%%q <cmd> <nick> <quote>...
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%%q <nick> [<index>]
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"""
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cmd = args.get('<cmd>')
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nick = args['<nick>']
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quote = ' '.join(args.get('<quote>'))
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if cmd and quote:
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try:
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# Anybody can add
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if cmd == 'add':
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self.add_quote(mask, nick, quote, target)
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# But only admins can delete
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elif cmd == 'del' and self.guard.has_permission(mask, 'admin'):
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self.delete_quote(nick, quote)
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self.con.commit()
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except Error as ex:
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# Rollback transaction on error
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print(ex)
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self.con.rollback()
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else:
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index = args.get('<index>')
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values = [nick]
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if index:
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index = parse_int(index)
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if not index:
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return
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index, order = index
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order = 'rank {order}'.format(order=order)
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offset = 'OFFSET %s'
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values.append(index)
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else:
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order = 'random()'
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offset = ''
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# Fetch quote from database
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self.cur.execute('''
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WITH ranked_quotes AS (
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SELECT
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nick,
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item,
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rank() OVER (PARTITION BY nick ORDER BY id),
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count(*) OVER (PARTITION BY nick) AS total
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FROM
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quotes
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)
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SELECT
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*
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FROM
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ranked_quotes
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WHERE
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lower(nick) LIKE lower(%s)
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ORDER BY
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{order}
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LIMIT
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1
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{offset}
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'''.format(order=order, offset=offset), values)
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result = self.cur.fetchone()
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if result:
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return '[{rank}/{total}] <{nick}> {item}'.format(**result)
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