async def delete_entry(_id: str, db: AioRedis):
"""
Deletes a rate limiter entry.
@param host: (string) the hostname of the rate limiter entry to delete
@param db: (object) db connection
"""
await asyncio.gather(
db.delete(_id),
RateLimiter._clear_indexes(_id, db),
db.srem(entry_set, _id)
)
async def delete_rule(_id: str, db: AioRedis):
"""
Deletes a rate limiter rule.
@param id: (string) the ID of the rate limiter rule to delete
@param db: (object) db connection
"""
await asyncio.gather(
db.delete(_id),
RateLimiter._clear_indexes(_id, db),
db.srem(rules_set, _id)
)
async def delete(_id: str, db: AioRedis):
"""
deletes a endpoint cache rule.
@param id: (string) id of endpoint cache to delete
@param db: (object) db connection
"""
await asyncio.gather(
db.delete(_id),
EndpointCacher._clear_indexes(_id, db),
db.srem(endpoint_cache_set, _id),
)
class Redis(KeyValueStore):
"""Implementation for Redis"""
user_groupid_key = "users:{!s}:groupid"
user_ready_key = "users:{!s}:ready"
user_partyid_key = "users:{!s}:partyid"
group_state_key = "groups:{!s}:state"
group_members_key = "groups:{!s}:members"
group_gameid_key = "groups:{!s}:gameid"
group_slotid_key = "groups:{!s}:slotid"
group_partyid_key = "groups:{!s}:partyid"
game_queue_key = "queues:{!s}"
slot_players_key = "slots:{!s}:players"
slot_groups_key = "slots:{!s}:groups"
party_gameid_key = "parties:{!s}:gameid"
party_slotid_key = "parties:{!s}:slotid"
party_host_key = "parties:{!s}:host"
party_ports_key = "parties:{!s}:ports"
msgqueue_key = "msgqueues:{!s}:{!s}"
def __init__(self, redis_pool):
self.redis = AIORedis(redis_pool)
async def revoke_token(self, token) -> None:
await self.redis.zremrangebyscore("trl", 0, int(time()))
await self.redis.zadd("trl", token["exp"], token["jti"])
async def is_token_revoked(self, token_id) -> bool:
return await self.redis.zscore("trl", token_id) != None
async def get_user(self, userid):
groupid = await self.redis.get(Redis.user_groupid_key.format(userid))
if groupid is None:
raise PlayerNotInGroup()
partyid = await self.redis.get(Redis.user_partyid_key.format(userid))
ready = await self.redis.get(Redis.user_ready_key.format(userid))
return UserKVS(UUID(groupid.decode()),
partyid and UUID(partyid.decode()),
ready == b"1")
async def create_group(self, userid, gameid):
user_groupid_key = Redis.user_groupid_key.format(userid)
groupid = await self.redis.get(user_groupid_key)
if groupid is not None:
raise PlayerInGroupAlready()
if (await RDB.get_game_by_id(gameid)) is None:
raise GameDoesntExist()
groupid = uuid4()
await self.redis.set(user_groupid_key, str(groupid))
await self.redis.set(Redis.user_ready_key.format(userid), b"0")
await self.redis.set(
Redis.group_state_key.format(groupid), State.GROUP_CHECK.value)
await self.redis.set(
Redis.group_gameid_key.format(groupid), str(gameid))
await self.redis.sadd(
Redis.group_members_key.format(groupid), str(userid))
return groupid
async def join_group(self, groupid, userid):
user_groupid_key = Redis.user_groupid_key.format(userid)
if (await self.redis.get(user_groupid_key)) is not None:
raise PlayerInGroupAlready()
await self.redis.set(Redis.user_ready_key.format(userid), b"0")
gameid = await self.redis.get(Redis.group_gameid_key.format(groupid))
if gameid is None:
raise GroupDoesntExist()
state = State(await self.redis.get(
Redis.group_state_key.format(groupid)))
if state != State.GROUP_CHECK:
raise WrongGroupState(state, State.GROUP_CHECK)
game = await RDB.get_game_by_id(int(gameid))
group_members_key = Redis.group_members_key.format(groupid)
group_size = await self.redis.scard(group_members_key)
if group_size + 1 > game.capacity:
raise GroupIsFull()
await self.redis.set(user_groupid_key, str(groupid))
await self.redis.sadd(group_members_key, str(userid))
await self.redis.set(Redis.user_ready_key.format(userid), b"0")
async def leave_group(self, userid):
user_groupid_key = Redis.user_groupid_key.format(userid)
groupid = await self.redis.get(user_groupid_key)
if groupid is None:
raise PlayerNotInGroup()
groupid = groupid.decode()
state = State(await self.redis.get(
Redis.group_state_key.format(groupid)))
valids = [State.GROUP_CHECK, State.IN_QUEUE]
if state not in valids:
raise WrongGroupState(state, valids)
if state == State.IN_QUEUE:
await self.leave_queue(groupid)
await self.redis.delete(user_groupid_key)
await self.redis.delete(Redis.user_ready_key.format(userid))
await self.redis.srem(
Redis.group_members_key.format(groupid), str(userid))
ensure_future(self.group_cleanup(groupid))
async def group_cleanup(self, groupid):
"""Remove keys from redis"""
if (await self.redis.scard(Redis.group_members_key.format(groupid))) == 0:
await gather(
self.redis.delete(Redis.group_gameid_key.format(groupid)),
self.redis.delete(Redis.group_state_key.format(groupid)),
self.redis.delete(Redis.group_slotid_key.format(groupid)),
self.redis.delete(Redis.group_partyid_key.format(groupid))
)
async def get_group(self, groupid):
state = await self.redis.get(Redis.group_state_key.format(groupid))
if state is None:
raise GroupDoesntExist()
gameid = await self.redis.get(Redis.group_gameid_key.format(groupid))
slotid = await self.redis.get(Redis.group_slotid_key.format(groupid))
partyid = await self.redis.get(Redis.group_partyid_key.format(groupid))
members = await self.redis.smembers(Redis.group_members_key.format(groupid))
return Group(State(state),
[UUID(userid.decode()) for userid in members],
int(gameid),
slotid and UUID(slotid.decode()),
partyid and UUID(partyid.decode()))
async def mark_as_ready(self, userid):
user_groupid_key = Redis.user_groupid_key.format(userid)
groupid = await self.redis.get(user_groupid_key)
if groupid is None:
raise PlayerNotInGroup()
groupid = groupid.decode()
state = State(await self.redis.get(
Redis.group_state_key.format(groupid)))
valids = [State.GROUP_CHECK, State.PARTY_CHECK]
if state not in valids:
raise WrongGroupState(state, valids)
await self.redis.set(Redis.user_ready_key.format(userid), b"1")
async def mark_as_not_ready(self, userid):
user_groupid_key = Redis.user_groupid_key.format(userid)
groupid = await self.redis.get(user_groupid_key)
if groupid is None:
raise PlayerNotInGroup()
groupid = groupid.decode()
state = State(await self.redis.get(
Redis.group_state_key.format(groupid)))
valids = [State.GROUP_CHECK, State.IN_QUEUE, State.PARTY_CHECK]
if state not in valids:
raise WrongGroupState(state, valids)
if state == State.IN_QUEUE:
await self.leave_queue(groupid)
await self.redis.set(Redis.user_ready_key.format(userid), b"0")
async def is_user_ready(self, userid):
return (await self.redis.get(Redis.user_ready_key.format(userid))) == b"1"
async def is_group_ready(self, groupid):
"""Check the readiness of each member of a group"""
return all(await gather(*[
self.is_user_ready(userid.decode()) for userid in
await self.redis.smembers(Redis.group_members_key.format(groupid))]))
async def join_queue(self, groupid):
gameid = await self.redis.get(Redis.group_gameid_key.format(groupid))
if gameid is None:
raise GroupDoesntExist()
gameid = int(gameid)
group_state_key = Redis.group_state_key.format(groupid)
state = State(await self.redis.get(group_state_key))
if state != State.GROUP_CHECK:
raise WrongGroupState(state, State.GROUP_CHECK)
if not await self.is_group_ready(groupid):
raise GroupNotReady()
await self.redis.set(group_state_key, State.IN_QUEUE.value)
game = await RDB.get_game_by_id(gameid)
group_members_key = Redis.group_members_key.format(groupid)
group_members = await self.redis.smembers(group_members_key)
game_queue_key = Redis.game_queue_key.format(gameid)
slotids = await self.redis.lrange(
game_queue_key, 0, await self.redis.llen(game_queue_key))
for slotid in [UUID(slotid.decode()) for slotid in slotids]:
slot_players_key = Redis.slot_players_key.format(slotid)
slot_size = await self.redis.scard(slot_players_key)
if slot_size + len(group_members) <= game.capacity:
await self.redis.set(
Redis.group_slotid_key.format(groupid), str(slotid))
await self.redis.sunionstore(
slot_players_key, slot_players_key, group_members_key)
await self.redis.sadd(
Redis.slot_groups_key.format(slotid), str(groupid))
if slot_size + len(group_members) == game.capacity:
ensure_future(self.start_game(gameid, slotid))
break
else:
slotid = uuid4()
await self.redis.set(
Redis.group_slotid_key.format(groupid), str(slotid))
await self.redis.sunionstore(
Redis.slot_players_key.format(slotid), group_members_key)
await self.redis.sadd(Redis.slot_groups_key.format(slotid), str(groupid))
await self.redis.rpush(
Redis.game_queue_key.format(gameid), str(slotid))
if len(group_members) == game.capacity:
ensure_future(self.start_game(gameid, slotid))
async def leave_queue(self, groupid):
gameid = await self.redis.get(Redis.group_gameid_key.format(groupid))
if gameid is None:
raise GroupDoesntExist()
gameid = int(gameid)
group_state_key = Redis.group_state_key.format(groupid)
state = State(await self.redis.get(group_state_key))
if state != State.IN_QUEUE:
raise WrongGroupState(state, State.IN_QUEUE)
group_slotid_key = Redis.group_slotid_key.format(groupid)
slotid = (await self.redis.get(group_slotid_key)).decode()
slot_players_key = Redis.slot_players_key.format(slotid)
await self.redis.srem(Redis.slot_groups_key.format(slotid), str(groupid))
await self.redis.sdiffstore(
slot_players_key, slot_players_key, Redis.group_members_key.format(groupid))
if (await self.redis.scard(slot_players_key)) == 0:
self.redis.lrem(Redis.game_queue_key.format(gameid), 1, slotid)
await self.redis.set(group_state_key, State.GROUP_CHECK.value)
async def start_game(self, gameid, slotid):
partyid = str(uuid4())
payload = {"type": "game:starting", "partyid": str(partyid)}
groups = await self.redis.smembers(Redis.slot_groups_key.format(slotid))
for groupid in map(methodcaller("decode"), groups):
await MSG.send_message(MsgQueueType.GROUP, groupid, payload)
await self.redis.set(
Redis.group_state_key.format(groupid), State.PLAYING.value)
await self.redis.set(
Redis.group_partyid_key.format(groupid), partyid)
users = await self.redis.smembers(Redis.slot_players_key.format(slotid))
for userid in map(methodcaller("decode"), users):
await self.redis.set(
Redis.user_partyid_key.format(userid), partyid)
await self.redis.lrem(Redis.game_queue_key.format(gameid), 1, str(slotid))
game = await RDB.get_game_by_id(gameid)
party = Party(gameid, slotid, config.webapi.GAME_HOST,
sorted(sample(range(config.webapi.GAME_PORT_RANGE_START,
config.webapi.GAME_PORT_RANGE_STOP),
len(game.ports))))
await self.redis.set(
Redis.party_gameid_key.format(partyid), str(party.gameid))
await self.redis.set(
Redis.party_slotid_key.format(partyid), str(party.slotid))
await self.redis.set(
Redis.party_host_key.format(partyid), party.host)
await self.redis.sadd(
Redis.party_ports_key.format(partyid), *party.ports)
ensure_future(CTR.launch_game(gameid, game, partyid, party))
async def get_party(self, partyid):
gameid = await self.redis.get(Redis.party_gameid_key.format(partyid))
if gameid is None:
raise PartyDoesntExist()
slotid = await self.redis.get(Redis.party_slotid_key.format(partyid))
host = await self.redis.get(Redis.party_host_key.format(partyid))
ports = await self.redis.get(Redis.party_ports_key.format(partyid))
return Party(gameid=UUID(gameid.decode()),
slotid=UUID(slotid.decode()),
host=host.decode(),
ports=list(map(int, ports)))
async def end_game(self, partyid):
slotid = await self.redis.get(Redis.party_slotid_key.format(partyid))
slotid = UUID(slotid.decode())
groups = await self.redis.smembers(Redis.slot_groups_key.format(slotid))
for groupid in map(methodcaller("decode"), groups):
await self.redis.set(
Redis.group_state_key.format(groupid), State.GROUP_CHECK.value)
await self.redis.delete(Redis.group_partyid_key.format(groupid))
users = await self.redis.smembers(Redis.slot_players_key.format(slotid))
for userid in map(methodcaller("decode"), users):
await self.redis.delete(Redis.user_partyid_key.format(userid))
await self.redis.delete(Redis.party_gameid_key.format(partyid))
await self.redis.delete(Redis.party_slotid_key.format(partyid))
await self.redis.delete(Redis.party_host_key.format(partyid))
await self.redis.delete(Redis.party_ports_key.format(partyid))
await self.redis.delete(Redis.slot_players_key.format(slotid))
await self.redis.delete(Redis.slot_groups_key.format(slotid))