zulip/zerver/tornado/sharding.py

53 lines
1.5 KiB
Python

import json
import os
import re
from typing import Dict, List, Pattern, Tuple, Union
from django.conf import settings
from zerver.models import Realm, UserProfile
shard_map: Dict[str, Union[int, List[int]]] = {}
shard_regexes: List[Tuple[Pattern[str], Union[int, List[int]]]] = []
if os.path.exists("/etc/zulip/sharding.json"):
with open("/etc/zulip/sharding.json") as f:
data = json.loads(f.read())
shard_map = data.get(
"shard_map",
data, # backwards compatibility
)
shard_regexes = [
(re.compile(regex, re.IGNORECASE), port)
for regex, port in data.get("shard_regexes", [])
]
def get_realm_tornado_ports(realm: Realm) -> List[int]:
if realm.host in shard_map:
ports = shard_map[realm.host]
return [ports] if isinstance(ports, int) else ports
for regex, ports in shard_regexes:
if regex.match(realm.host):
return [ports] if isinstance(ports, int) else ports
return [settings.TORNADO_PORTS[0]]
def get_user_id_tornado_port(realm_ports: List[int], user_id: int) -> int:
return realm_ports[user_id % len(realm_ports)]
def get_user_tornado_port(user: UserProfile) -> int:
return get_user_id_tornado_port(get_realm_tornado_ports(user.realm), user.id)
def get_tornado_url(port: int) -> str:
return f"http://127.0.0.1:{port}"
def notify_tornado_queue_name(port: int) -> str:
if settings.TORNADO_PROCESSES == 1:
return "notify_tornado"
return f"notify_tornado_port_{port}"