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import threading
from sqlalchemy import Column, Integer, String, UnicodeText, distinct, func
from Database.sql import BASE, SESSION
class BlackListFilters(BASE):
__tablename__ = "blacklist"
chat_id = Column(String(14), primary_key=True)
trigger = Column(UnicodeText, primary_key=True, nullable=False)
def __init__(self, chat_id, trigger):
self.chat_id = str(chat_id) # ensure string
self.trigger = trigger
def __repr__(self):
return "<Blacklist filter '%s' for %s>" % (self.trigger, self.chat_id)
def __eq__(self, other):
return bool(
isinstance(other, BlackListFilters)
and self.chat_id == other.chat_id
and self.trigger == other.trigger,
)
class BlacklistSettings(BASE):
__tablename__ = "blacklist_settings"
chat_id = Column(String(14), primary_key=True)
blacklist_type = Column(Integer, default=1)
value = Column(UnicodeText, default="0")
def __init__(self, chat_id, blacklist_type=1, value="0"):
self.chat_id = str(chat_id)
self.blacklist_type = blacklist_type
self.value = value
def __repr__(self):
return "<{} will executing {} for blacklist trigger.>".format(
self.chat_id,
self.blacklist_type,
)
BlackListFilters.__table__.create(checkfirst=True)
BlacklistSettings.__table__.create(checkfirst=True)
BLACKLIST_FILTER_INSERTION_LOCK = threading.RLock()
BLACKLIST_SETTINGS_INSERTION_LOCK = threading.RLock()
CHAT_BLACKLISTS = {}
CHAT_SETTINGS_BLACKLISTS = {}
def add_to_blacklist(chat_id, trigger):
with BLACKLIST_FILTER_INSERTION_LOCK:
blacklist_filt = BlackListFilters(str(chat_id), trigger)
SESSION.merge(blacklist_filt) # merge to avoid duplicate key issues
SESSION.commit()
global CHAT_BLACKLISTS
if CHAT_BLACKLISTS.get(str(chat_id), set()) == set():
CHAT_BLACKLISTS[str(chat_id)] = {trigger}
else:
CHAT_BLACKLISTS.get(str(chat_id), set()).add(trigger)
def rm_from_blacklist(chat_id, trigger):
with BLACKLIST_FILTER_INSERTION_LOCK:
blacklist_filt = SESSION.query(BlackListFilters).get((str(chat_id), trigger))
if blacklist_filt:
if trigger in CHAT_BLACKLISTS.get(str(chat_id), set()): # sanity check
CHAT_BLACKLISTS.get(str(chat_id), set()).remove(trigger)
SESSION.delete(blacklist_filt)
SESSION.commit()
return True
SESSION.close()
return False
def get_chat_blacklist(chat_id):
return CHAT_BLACKLISTS.get(str(chat_id), set())
def num_blacklist_filters():
try:
return SESSION.query(BlackListFilters).count()
finally:
SESSION.close()
def num_blacklist_chat_filters(chat_id):
try:
return (
SESSION.query(BlackListFilters.chat_id)
.filter(BlackListFilters.chat_id == str(chat_id))
.count()
)
finally:
SESSION.close()
def num_blacklist_filter_chats():
try:
return SESSION.query(func.count(distinct(BlackListFilters.chat_id))).scalar()
finally:
SESSION.close()
def set_blacklist_strength(chat_id, blacklist_type, value):
# for blacklist_type
# 0 = nothing
# 1 = delete
# 2 = warn
# 3 = mute
# 4 = kick
# 5 = ban
# 6 = tban
# 7 = tmute
with BLACKLIST_SETTINGS_INSERTION_LOCK:
global CHAT_SETTINGS_BLACKLISTS
curr_setting = SESSION.query(BlacklistSettings).get(str(chat_id))
if not curr_setting:
curr_setting = BlacklistSettings(
chat_id,
blacklist_type=int(blacklist_type),
value=value,
)
curr_setting.blacklist_type = int(blacklist_type)
curr_setting.value = str(value)
CHAT_SETTINGS_BLACKLISTS[str(chat_id)] = {
"blacklist_type": int(blacklist_type),
"value": value,
}
SESSION.add(curr_setting)
SESSION.commit()
def get_blacklist_setting(chat_id):
try:
setting = CHAT_SETTINGS_BLACKLISTS.get(str(chat_id))
if setting:
return setting["blacklist_type"], setting["value"]
else:
return 1, "0"
finally:
SESSION.close()
def __load_chat_blacklists():
global CHAT_BLACKLISTS
try:
chats = SESSION.query(BlackListFilters.chat_id).distinct().all()
for (chat_id,) in chats: # remove tuple by ( ,)
CHAT_BLACKLISTS[chat_id] = []
all_filters = SESSION.query(BlackListFilters).all()
for x in all_filters:
CHAT_BLACKLISTS[x.chat_id] += [x.trigger]
CHAT_BLACKLISTS = {x: set(y) for x, y in CHAT_BLACKLISTS.items()}
finally:
SESSION.close()
def __load_chat_settings_blacklists():
global CHAT_SETTINGS_BLACKLISTS
try:
chats_settings = SESSION.query(BlacklistSettings).all()
for x in chats_settings: # remove tuple by ( ,)
CHAT_SETTINGS_BLACKLISTS[x.chat_id] = {
"blacklist_type": x.blacklist_type,
"value": x.value,
}
finally:
SESSION.close()
def migrate_chat(old_chat_id, new_chat_id):
with BLACKLIST_FILTER_INSERTION_LOCK:
chat_filters = (
SESSION.query(BlackListFilters)
.filter(BlackListFilters.chat_id == str(old_chat_id))
.all()
)
for filt in chat_filters:
filt.chat_id = str(new_chat_id)
SESSION.commit()
__load_chat_blacklists()
__load_chat_settings_blacklists()
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