00cb8895d4
Review follow-up on the one-shot state.db -> shared-state.db import (#109775): - A room id present in both stores is skipped as a unit. Grafting the legacy events under the store's own room left next_seq behind MAX(seq) and every later append_event collided on (room_id, seq). - Columns only the target has are selected with the same defaults the in-place column migration applies ('legacy' authority, epoch 1, legacy actor json), and room-scoped tables use a plain INSERT under a savepoint. INSERT OR IGNORE used to swallow the NOT NULL violations of a pre-Sep-2 layout, drop every row and still record the marker with rooms=0. event_bytes is backfilled for the copied rooms. - An unreadable or refused legacy store is remembered per process, so the warning fires once and the retry happens on the next start instead of on every poll. - The import lives in gateway/hosted_rooms_legacy_import.py; the facade keeps only the _connect seam.
1201 lines
64 KiB
Python
1201 lines
64 KiB
Python
"""Durable state for gateway-hosted Bot Mode rooms.
|
|
|
|
Owns only hosted-room identity and its append-only event log; delivery, relay leasing and agent turns
|
|
belong to the relay and the hosted-room driver, so the log composes with a durable relay without a second
|
|
transport queue. Callers supply the database path (production handlers use the gateway's root ``state.db``).
|
|
"""
|
|
|
|
from __future__ import annotations
|
|
|
|
import hashlib
|
|
import json
|
|
import re
|
|
import sqlite3
|
|
from contextlib import closing
|
|
from functools import partial
|
|
from pathlib import Path
|
|
from typing import Any, Mapping
|
|
|
|
from gateway.hosted_rooms_common import (
|
|
DbPath, bounded_int, canonical_json, clock as _now, compact_json, connect, fenced_update as _fenced_update,
|
|
identifier, open_sqlite, table_columns, table_exists, transaction, utf8_len)
|
|
|
|
PROTOCOL_VERSION = 2
|
|
MAX_ROOM_ID_CHARS = 128
|
|
MAX_EVENT_ID_CHARS = 128
|
|
MAX_ROOM_NAME_CHARS = 200
|
|
MAX_EVENT_KIND_CHARS = 64
|
|
MAX_ACTOR_ID_CHARS = 128
|
|
MAX_ACTOR_LABEL_CHARS = 200
|
|
MAX_MEMBERS = 128
|
|
MAX_MEMBERS_JSON_BYTES = 128 * 1024
|
|
MAX_EVENT_JSON_BYTES = 256 * 1024
|
|
MAX_LOG_LIMIT = 500
|
|
MAX_LOG_PAGE_BYTES = 2 * 1024 * 1024
|
|
MAX_ROOM_LIST_LIMIT = 500
|
|
MAX_ACTIVE_ROOMS = 256
|
|
MAX_DISBANDED_ROOM_TOMBSTONES = 512
|
|
DISBANDED_ROOM_RETENTION_SECONDS = 90 * 24 * 60 * 60
|
|
MAX_EVENTS_PER_ROOM = 50_000
|
|
MAX_ROOM_EVENT_BYTES = 256 * 1024 * 1024
|
|
# Leave substantial headroom below the pre-update state.db snapshot ceiling: event accounting excludes
|
|
# SQLite indexes and repeated room ids, so the logical budget must stay well below the physical-file limit.
|
|
MAX_GATEWAY_EVENT_BYTES = 16 * 1024 * 1024
|
|
CONTROL_EVENT_COUNT_RESERVE = 64
|
|
CONTROL_EVENT_BYTE_RESERVE = 1024 * 1024
|
|
_JOURNAL_MODE_LOCK_RETRIES = 8
|
|
|
|
_EVENT_KIND_RE = re.compile(r"^[a-z][a-z0-9_.-]*$")
|
|
_CONTROL_EVENT_KINDS = frozenset({"authority.claimed", "authority.lost", "room.disbanded", "room.stop_requested"})
|
|
_EVENT_KINDS_BY_ACTOR = {
|
|
"user": frozenset({"message.user"}), "member": frozenset({"message.member"}),
|
|
"gateway": frozenset({
|
|
"member.unavailable", "room.activity", "room.stop_requested", "turn.deferred", "turn.reassigned",
|
|
"turn.cancelled", "turn.failed", "turn.settled", "turn.started"}),
|
|
"system": frozenset({
|
|
"authority.claimed", "authority.lost", "room.created", "room.disbanded", "room.members_changed", "room.renamed"
|
|
})}
|
|
_OPTIONAL_ACTOR_FIELDS = (
|
|
("display_name", MAX_ACTOR_LABEL_CHARS), ("profile", MAX_ACTOR_ID_CHARS), ("connection_id", MAX_ACTOR_ID_CHARS))
|
|
_ACTOR_FIELDS = frozenset({"kind", "id", *(field for field, _ in _OPTIONAL_ACTOR_FIELDS)})
|
|
|
|
# --- schema -----------------------------------------------------------------
|
|
_REMOTE_RUN_IDENTITY_COLUMNS = (
|
|
"room_id", "home_install_id", "authority_gateway_id", "authority_epoch", "member_id", "target_install_id",
|
|
"target_profile", "task_id", "execution_generation")
|
|
_REMOTE_RUNS_BODY = """
|
|
room_id TEXT NOT NULL,
|
|
home_install_id TEXT NOT NULL,
|
|
authority_gateway_id TEXT NOT NULL,
|
|
authority_epoch INTEGER NOT NULL CHECK (authority_epoch >= 1),
|
|
member_id TEXT NOT NULL,
|
|
task_id TEXT NOT NULL,
|
|
execution_generation INTEGER NOT NULL CHECK (execution_generation >= 1),
|
|
target_install_id TEXT NOT NULL,
|
|
target_profile TEXT NOT NULL,
|
|
run_id TEXT NOT NULL,
|
|
session_id TEXT NOT NULL,
|
|
created_at REAL NOT NULL,
|
|
updated_at REAL NOT NULL,
|
|
PRIMARY KEY (
|
|
room_id, home_install_id, authority_gateway_id, authority_epoch,
|
|
member_id, target_install_id, target_profile, task_id,
|
|
execution_generation
|
|
)
|
|
"""
|
|
# Executed in this exact order on first open / migration.
|
|
_SCHEMA_DDL = (
|
|
"""CREATE TABLE IF NOT EXISTS hosted_rooms (
|
|
room_id TEXT PRIMARY KEY,
|
|
name TEXT NOT NULL,
|
|
members_json TEXT NOT NULL,
|
|
authority_gateway_id TEXT NOT NULL,
|
|
authority_epoch INTEGER NOT NULL DEFAULT 1 CHECK (authority_epoch >= 1),
|
|
next_seq INTEGER NOT NULL DEFAULT 1 CHECK (next_seq >= 1),
|
|
event_bytes INTEGER NOT NULL DEFAULT 0 CHECK (event_bytes >= 0),
|
|
revision INTEGER NOT NULL DEFAULT 1 CHECK (revision >= 1),
|
|
created_at REAL NOT NULL,
|
|
updated_at REAL NOT NULL,
|
|
disbanded_at REAL
|
|
)""",
|
|
"""CREATE TABLE IF NOT EXISTS hosted_room_events (
|
|
room_id TEXT NOT NULL,
|
|
seq INTEGER NOT NULL CHECK (seq >= 1),
|
|
event_id TEXT NOT NULL,
|
|
kind TEXT NOT NULL,
|
|
actor_json TEXT NOT NULL,
|
|
authority_epoch INTEGER CHECK (authority_epoch IS NULL OR authority_epoch >= 1),
|
|
payload_json TEXT NOT NULL,
|
|
created_at REAL NOT NULL,
|
|
PRIMARY KEY (room_id, seq),
|
|
UNIQUE (room_id, event_id),
|
|
FOREIGN KEY (room_id) REFERENCES hosted_rooms(room_id)
|
|
)""",
|
|
"""CREATE TABLE IF NOT EXISTS hosted_room_retired_ids (
|
|
room_id TEXT PRIMARY KEY,
|
|
retired_at REAL NOT NULL
|
|
)""",
|
|
"""CREATE TABLE IF NOT EXISTS hosted_room_links (
|
|
room_id TEXT NOT NULL,
|
|
member_id TEXT NOT NULL,
|
|
target_url TEXT NOT NULL,
|
|
target_profile TEXT NOT NULL,
|
|
grant TEXT NOT NULL,
|
|
catalog_json TEXT NOT NULL,
|
|
cancellation_scope_id TEXT NOT NULL,
|
|
trace_id TEXT NOT NULL,
|
|
transport_security TEXT NOT NULL,
|
|
status TEXT NOT NULL DEFAULT 'ready',
|
|
updated_at REAL NOT NULL,
|
|
PRIMARY KEY (room_id, member_id)
|
|
)""", f"CREATE TABLE IF NOT EXISTS hosted_room_remote_runs ({_REMOTE_RUNS_BODY})",
|
|
"""CREATE TABLE IF NOT EXISTS hosted_room_revoked_grants (
|
|
scope_key TEXT PRIMARY KEY,
|
|
expires_at REAL NOT NULL,
|
|
revoked_before REAL NOT NULL
|
|
)""",
|
|
"""CREATE TABLE IF NOT EXISTS hosted_room_peer_reservations (
|
|
room_id TEXT NOT NULL,
|
|
member_id TEXT NOT NULL,
|
|
target_profile TEXT NOT NULL,
|
|
authority_gateway_id TEXT NOT NULL,
|
|
authority_epoch INTEGER NOT NULL CHECK (authority_epoch >= 1),
|
|
expires_at REAL NOT NULL,
|
|
revoked_at REAL,
|
|
created_at REAL NOT NULL,
|
|
updated_at REAL NOT NULL,
|
|
PRIMARY KEY (room_id, member_id, target_profile)
|
|
)""")
|
|
# (table, required columns) parsed from the DDL, in the order _schema_is_current probes them.
|
|
_REQUIRED_COLUMNS = tuple(
|
|
(re.search(r"EXISTS (\w+)", ddl).group(1),
|
|
frozenset(re.findall(r"^\s*(\w+) (?:TEXT|INTEGER|REAL)\b", ddl.split("(", 1)[1], re.M))) for ddl in _SCHEMA_DDL)
|
|
_REMOTE_RUN_SCHEMA_COLUMNS = _REQUIRED_COLUMNS[4][1]
|
|
|
|
# --- SQL fragments (statement text must stay byte-stable after whitespace normalisation) ---
|
|
_EVENT_COLUMNS = ("room_id, seq, event_id, kind, actor_json, authority_epoch, payload_json, created_at")
|
|
_SELECT_EVENT = f"SELECT {_EVENT_COLUMNS} FROM hosted_room_events WHERE room_id=? AND event_id=?"
|
|
_INSERT_EVENT = (f"INSERT INTO hosted_room_events ({_EVENT_COLUMNS}) VALUES (?, ?, ?, ?, ?, ?, ?, ?)")
|
|
_ROOM_COLUMNS = (
|
|
"room_id, name, members_json, authority_gateway_id, authority_epoch, next_seq, revision,"
|
|
" created_at, updated_at, disbanded_at")
|
|
_ROOM_COLUMNS_WITH_BYTES = (
|
|
"room_id, name, members_json, authority_gateway_id, authority_epoch, next_seq, event_bytes,"
|
|
" revision, created_at, updated_at, disbanded_at")
|
|
_SELECT_ROOM = f"SELECT {_ROOM_COLUMNS} FROM hosted_rooms WHERE room_id=?"
|
|
_SELECT_ROOM_WITH_BYTES = f"SELECT {_ROOM_COLUMNS_WITH_BYTES} FROM hosted_rooms WHERE room_id=?"
|
|
_SUM_EVENT_BYTES = "SELECT COALESCE(SUM(event_bytes), 0) FROM hosted_rooms"
|
|
_INSERT_RETIRED = ("INSERT OR IGNORE INTO hosted_room_retired_ids (room_id, retired_at) VALUES (?, ?)")
|
|
_RETIRE_FROM_ROOMS = (
|
|
"INSERT OR IGNORE INTO hosted_room_retired_ids (room_id, retired_at)"
|
|
" SELECT room_id, disbanded_at FROM hosted_rooms WHERE {where}")
|
|
_LINK_COLUMNS = (
|
|
"room_id", "member_id", "target_url", "target_profile", "grant", "catalog_json", "cancellation_scope_id",
|
|
"trace_id", "transport_security", "status", "updated_at")
|
|
_REMOTE_RUN_WHERE = " AND ".join(f"{column}=?" for column in _REMOTE_RUN_IDENTITY_COLUMNS)
|
|
_SELECT_REMOTE_RUN = f"SELECT * FROM hosted_room_remote_runs WHERE {_REMOTE_RUN_WHERE}"
|
|
_LIVE_RESERVATION_WHERE = ("WHERE room_id=? AND target_profile=? AND expires_at>? AND revoked_at IS NULL")
|
|
_SELECT_LIVE_RESERVATION = (f"SELECT 1 FROM hosted_room_peer_reservations {_LIVE_RESERVATION_WHERE} LIMIT 1")
|
|
|
|
|
|
class HostedRoomError(ValueError): """Base class for invalid or conflicting hosted-room operations."""
|
|
|
|
class RoomNotFoundError(HostedRoomError): """Raised when a room does not exist or has been disbanded."""
|
|
|
|
class RoomHistoryExpiredError(RoomNotFoundError):
|
|
"""Raised when a retired room remains reserved after history compaction."""
|
|
reason = "room_history_expired"
|
|
|
|
class RoomConflictError(HostedRoomError): """Raised when an idempotency key is reused for different room state."""
|
|
|
|
class RoomProbeUnavailableError(HostedRoomError):
|
|
"""Raised when a non-blocking ownership probe cannot read the room store."""
|
|
|
|
class EventConflictError(HostedRoomError): """Raised when an event id is reused with different immutable content."""
|
|
|
|
class AuthorityConflictError(HostedRoomError):
|
|
"""Raised when a stale room authority attempts to mutate hosted state."""
|
|
reason = "authority_conflict"
|
|
|
|
class AuthoritySupersededError(AuthorityConflictError):
|
|
"""Raised when a successful authority claim was later superseded."""
|
|
|
|
|
|
# --- validation ---------------------------------------------------------------
|
|
_canonical_json = partial(canonical_json, error=HostedRoomError, ensure_ascii=False)
|
|
_validate_identifier = partial(identifier, error=HostedRoomError)
|
|
_room_id = partial(_validate_identifier, label="room_id", max_chars=MAX_ROOM_ID_CHARS)
|
|
_event_id = partial(_validate_identifier, label="event_id", max_chars=MAX_EVENT_ID_CHARS)
|
|
_actor_json = partial(_canonical_json, label="actor", max_bytes=4 * 1024)
|
|
_payload_json = partial(_canonical_json, label="payload", max_bytes=MAX_EVENT_JSON_BYTES)
|
|
_bounded_int = partial(bounded_int, error=HostedRoomError)
|
|
_validate_room_name = partial(
|
|
_validate_identifier, label="name", max_chars=MAX_ROOM_NAME_CHARS, pattern=None, invalid="invalid room name")
|
|
_validate_event_kind = partial(
|
|
_validate_identifier, label="kind", max_chars=MAX_EVENT_KIND_CHARS, pattern=_EVENT_KIND_RE,
|
|
invalid="invalid event kind")
|
|
|
|
|
|
def _actor_id(value: Any, label: str) -> str:
|
|
return _validate_identifier(value, label=label, max_chars=MAX_ACTOR_ID_CHARS)
|
|
|
|
|
|
def _require_positive_int(value: Any, label: str) -> int:
|
|
return _bounded_int(value, message=f"{label} must be a positive integer", low=1)
|
|
|
|
|
|
def _bounded_limit(value: Any, maximum: int) -> int:
|
|
return _bounded_int(value, message=f"limit must be between 1 and {maximum}", low=1, high=maximum)
|
|
|
|
|
|
def _non_negative(value: Any, label: str) -> int:
|
|
return _bounded_int(value, message=f"{label} must be a non-negative integer")
|
|
|
|
|
|
def _system_actor_json(actor_id: str) -> str:
|
|
return _actor_json({"kind": "system", "id": actor_id})
|
|
|
|
|
|
def _claim_payload_json(previous_gateway_id: str, new_gateway_id: str, epoch: int) -> str:
|
|
return _payload_json(
|
|
{"previous_gateway_id": previous_gateway_id, "authority_gateway_id": new_gateway_id, "authority_epoch": epoch})
|
|
|
|
|
|
def user_event_id(client_event_id: Any) -> str:
|
|
"""Map a client retry key into the server-owned user-event namespace."""
|
|
return f"user:{hashlib.sha256(_event_id(client_event_id).encode('utf-8')).hexdigest()}"
|
|
|
|
|
|
def _validate_members(value: Any) -> tuple[list[dict[str, Any]], str]:
|
|
if not isinstance(value, list):
|
|
raise HostedRoomError("members must be a list")
|
|
if len(value) > MAX_MEMBERS:
|
|
raise HostedRoomError("too many room members")
|
|
if not all(isinstance(member, dict) for member in value):
|
|
raise HostedRoomError("each room member must be an object")
|
|
members = [dict(member) for member in value]
|
|
return members, _canonical_json(members, label="members", max_bytes=MAX_MEMBERS_JSON_BYTES)
|
|
|
|
|
|
def _legacy_members_match(existing_json: str, proposed: list[dict[str, Any]]) -> bool:
|
|
"""Allow adoption to add routing metadata an older room could not store."""
|
|
try:
|
|
existing = json.loads(existing_json)
|
|
except (TypeError, ValueError):
|
|
return False
|
|
if not isinstance(existing, list) or len(existing) != len(proposed):
|
|
return False
|
|
for previous, current in zip(existing, proposed, strict=True):
|
|
if not isinstance(previous, dict):
|
|
return False
|
|
previous, current = dict(previous), dict(current)
|
|
previous_target, current_target = previous.pop("target", None), current.pop("target", None)
|
|
if previous != current or (previous_target not in (None, {}) and previous_target != current_target):
|
|
return False
|
|
return True
|
|
|
|
|
|
def _validate_actor(value: Any, *, kind: str) -> tuple[dict[str, str], str]:
|
|
if not isinstance(value, dict):
|
|
raise HostedRoomError("actor must be an object")
|
|
unknown = set(value) - _ACTOR_FIELDS
|
|
if unknown:
|
|
raise HostedRoomError(f"unknown actor fields: {', '.join(sorted(unknown))}")
|
|
actor_kind = value.get("kind")
|
|
if not isinstance(actor_kind, str) or actor_kind not in _EVENT_KINDS_BY_ACTOR:
|
|
raise HostedRoomError("invalid actor.kind")
|
|
if kind not in _EVENT_KINDS_BY_ACTOR[actor_kind]:
|
|
raise HostedRoomError(f"actor kind '{actor_kind}' cannot append '{kind}'")
|
|
actor = {"kind": actor_kind, "id": _actor_id(value.get("id"), "actor.id")}
|
|
for field, max_chars in _OPTIONAL_ACTOR_FIELDS:
|
|
field_value = value.get(field)
|
|
if field_value is None:
|
|
continue
|
|
if not isinstance(field_value, str):
|
|
raise HostedRoomError(f"actor.{field} must be a string")
|
|
if len(field_value := field_value.strip()) > max_chars:
|
|
raise HostedRoomError(f"actor.{field} is too long")
|
|
if field_value:
|
|
actor[field] = field_value
|
|
return actor, _actor_json(actor)
|
|
|
|
|
|
# --- schema / connections -------------------------------------------------------
|
|
def _remote_run_schema_current(conn: sqlite3.Connection, columns: frozenset[str]) -> bool:
|
|
if not _REMOTE_RUN_SCHEMA_COLUMNS.issubset(columns):
|
|
return False
|
|
pk_rows = [row for row in conn.execute("PRAGMA table_info(hosted_room_remote_runs)") if row[5]]
|
|
return tuple(str(row[1]) for row in sorted(pk_rows, key=lambda row: int(row[5]))) == _REMOTE_RUN_IDENTITY_COLUMNS
|
|
|
|
|
|
def _migrate_remote_run_schema(conn: sqlite3.Connection) -> None:
|
|
"""Fence legacy receipts behind a complete authority-lineage key."""
|
|
columns = table_columns(conn, "hosted_room_remote_runs")
|
|
if _remote_run_schema_current(conn, columns):
|
|
return
|
|
conn.execute("DROP TABLE IF EXISTS hosted_room_remote_runs_migrating")
|
|
conn.execute(f"CREATE TABLE hosted_room_remote_runs_migrating ({_REMOTE_RUNS_BODY})")
|
|
if columns:
|
|
fallbacks = (("home_install_id", "'legacy'"), ("authority_gateway_id", "'legacy'"), ("authority_epoch", "1"))
|
|
home, gateway, epoch = (column if column in columns else default for column, default in fallbacks)
|
|
conn.execute(
|
|
f"""INSERT OR IGNORE INTO hosted_room_remote_runs_migrating(
|
|
room_id, home_install_id, authority_gateway_id,
|
|
authority_epoch, member_id, task_id,
|
|
execution_generation, target_install_id, target_profile,
|
|
run_id, session_id, created_at, updated_at
|
|
)
|
|
SELECT room_id, {home}, {gateway}, {epoch}, member_id, task_id,
|
|
execution_generation, target_install_id, target_profile,
|
|
run_id, session_id, created_at, updated_at
|
|
FROM hosted_room_remote_runs""")
|
|
conn.execute("DROP TABLE hosted_room_remote_runs")
|
|
conn.execute("ALTER TABLE hosted_room_remote_runs_migrating RENAME TO hosted_room_remote_runs")
|
|
|
|
|
|
# Draft builds before the actor contract carried no identity. Preserve their inert replay rows explicitly
|
|
# as legacy system events rather than guessing a user or Bot author.
|
|
_LEGACY_ACTOR_JSON = _system_actor_json("legacy").replace("'", "''")
|
|
# (table, column, declaration, default literal) applied in this exact order; each table's PRAGMA is read on
|
|
# first use. The default is also what the pre-isolation import selects for a source that predates the column.
|
|
_LEGACY_COLUMNS = (
|
|
("hosted_rooms", "authority_gateway_id", "TEXT NOT NULL", "'legacy'"),
|
|
("hosted_rooms", "authority_epoch", "INTEGER NOT NULL", "1"),
|
|
("hosted_rooms", "event_bytes", "INTEGER NOT NULL", "0"),
|
|
("hosted_room_events", "actor_json", "TEXT NOT NULL", f"'{_LEGACY_ACTOR_JSON}'"),
|
|
("hosted_room_events", "authority_epoch", "INTEGER", None))
|
|
_EVENT_BYTES_BACKFILL = """UPDATE hosted_rooms
|
|
SET event_bytes=COALESCE((
|
|
SELECT SUM(
|
|
length(CAST(event_id AS BLOB)) +
|
|
length(CAST(kind AS BLOB)) +
|
|
length(CAST(actor_json AS BLOB)) +
|
|
length(CAST(payload_json AS BLOB))
|
|
)
|
|
FROM hosted_room_events
|
|
WHERE hosted_room_events.room_id=hosted_rooms.room_id
|
|
), 0) WHERE {where}"""
|
|
|
|
|
|
def _migrate_legacy_columns(conn: sqlite3.Connection) -> None:
|
|
"""Add columns draft schemas lacked; backfill event_bytes when first introduced."""
|
|
columns: dict[str, frozenset[str]] = {}
|
|
for table, column, declaration, default in _LEGACY_COLUMNS:
|
|
if table not in columns:
|
|
columns[table] = table_columns(conn, table)
|
|
if column not in columns[table]:
|
|
conn.execute(f"ALTER TABLE {table} ADD COLUMN {column} {declaration}"
|
|
+ (f" DEFAULT {default}" if default is not None else ""))
|
|
if "event_bytes" not in columns["hosted_rooms"]:
|
|
conn.execute(_EVENT_BYTES_BACKFILL.format(where="1"))
|
|
|
|
|
|
def _initialize_schema(conn: sqlite3.Connection) -> None:
|
|
for statement in _SCHEMA_DDL:
|
|
conn.execute(statement)
|
|
_migrate_legacy_columns(conn)
|
|
# Old schemas kept the final identity tombstone in hosted_rooms itself. Copy those identities before
|
|
# bounded history pruning can remove their heavier room/event payloads. This compact registry is
|
|
# intentionally permanent: a stale coordinate must never name a different Group Chat.
|
|
conn.execute(_RETIRE_FROM_ROOMS.format(where="disbanded_at IS NOT NULL"))
|
|
_migrate_remote_run_schema(conn)
|
|
conn.execute("CREATE INDEX IF NOT EXISTS idx_hosted_room_events_cursor ON hosted_room_events(room_id, seq)")
|
|
if not _schema_is_current(conn):
|
|
raise HostedRoomError("hosted room schema migration did not complete")
|
|
|
|
|
|
def _schema_is_current(conn: sqlite3.Connection) -> bool:
|
|
# Read every table first (fixed PRAGMA order), then compare.
|
|
actual = [table_columns(conn, table) for table, _ in _REQUIRED_COLUMNS]
|
|
return all(
|
|
required.issubset(columns)
|
|
and (table != "hosted_room_remote_runs" or _remote_run_schema_current(conn, columns))
|
|
for (table, required), columns in zip(_REQUIRED_COLUMNS, actual, strict=True)) and conn.execute(
|
|
"SELECT 1 FROM sqlite_master WHERE type='index' AND name='idx_hosted_room_events_cursor'"
|
|
).fetchone() is not None
|
|
|
|
|
|
def default_db_path() -> Path:
|
|
"""Return the hosted-room coordination database for the active install.
|
|
|
|
Profile gateways (``~/.hermes/profiles/<name>/``) resolve to the shared
|
|
ROOT ``shared-state.db`` instead of the master ``state.db``: hosted-room
|
|
coordination is the only thing this module owns, and pointing profile
|
|
gateways at the master session store makes every profile process a
|
|
long-lived writer on state.db — the recurring multi-writer corruption
|
|
vector observed across a 6-gateway fleet (state.db WAL/FTS collisions
|
|
during bot-gateway restart storms, 2026-09-03). Keeping the hosted_room*
|
|
tables in a dedicated file means profile gateways never open the master
|
|
session store writable.
|
|
"""
|
|
from hermes_constants import get_hermes_home
|
|
home = get_hermes_home()
|
|
return (home.parent.parent if home.parent.name == "profiles" else home) / "shared-state.db"
|
|
|
|
|
|
def local_authority_gateway_id() -> str:
|
|
"""Return the stable server-owned identity for hosted-room authority."""
|
|
from hermes_cli.install_identity import get_install_id
|
|
install_id = get_install_id()
|
|
if not install_id:
|
|
raise HostedRoomError("stable gateway install identity is unavailable")
|
|
return _actor_id(f"install:{install_id}", "authority_gateway_id")
|
|
|
|
|
|
def _store_ready(conn: sqlite3.Connection, db_path: Path) -> bool:
|
|
"""The store can serve rooms once its schema is current and the pre-isolation import has run."""
|
|
from gateway.hosted_rooms_legacy_import import settled
|
|
|
|
return _schema_is_current(conn) and settled(conn, db_path)
|
|
|
|
|
|
def _initialize_store(conn: sqlite3.Connection, db_path: Path) -> None:
|
|
"""Create or migrate the schema, then copy the pre-isolation rows in (#109775)."""
|
|
from gateway.hosted_rooms_legacy_import import import_legacy_rooms
|
|
|
|
_initialize_schema(conn)
|
|
import_legacy_rooms(conn, db_path)
|
|
|
|
|
|
def _connect(db_path: DbPath) -> sqlite3.Connection:
|
|
"""Open the shared room store; ``initialize`` carries the path so the one-shot import can find it."""
|
|
path = Path(db_path)
|
|
return connect(
|
|
path, db_label="shared-state.db (hosted_rooms)", ready=partial(_store_ready, db_path=path),
|
|
initialize=partial(_initialize_store, db_path=path), lock_retries=_JOURNAL_MODE_LOCK_RETRIES)
|
|
|
|
|
|
def _read_connection(db_path: DbPath) -> sqlite3.Connection:
|
|
"""Open the room store without steady-state journal or migration writes."""
|
|
path = Path(db_path)
|
|
if not path.is_file():
|
|
_connect(path).close()
|
|
conn = open_sqlite(path)
|
|
if not _store_ready(conn, path):
|
|
conn.close()
|
|
_connect(path).close()
|
|
conn = open_sqlite(path)
|
|
return conn
|
|
|
|
|
|
_transaction = partial(transaction, _connect, immediate=False)
|
|
|
|
|
|
# --- row helpers ------------------------------------------------------------------
|
|
def _is_retired(conn: sqlite3.Connection, room_id: str) -> bool:
|
|
return conn.execute("SELECT 1 FROM hosted_room_retired_ids WHERE room_id=?", (room_id,)).fetchone() is not None
|
|
|
|
|
|
def _room_row(conn: sqlite3.Connection, sql: str, params: tuple[Any, ...], room_id: str) -> sqlite3.Row:
|
|
"""Fetch one hosted_rooms row or raise the precise not-found/expired error."""
|
|
row = conn.execute(sql, params).fetchone()
|
|
if row is not None:
|
|
return row
|
|
# A retained disband tombstone still has replayable history; the caller did not opt into disbanded rooms.
|
|
retained = conn.execute("SELECT 1 FROM hosted_rooms WHERE room_id=?", (room_id,)).fetchone()
|
|
if retained is None and _is_retired(conn, room_id):
|
|
raise RoomHistoryExpiredError("Group Chat history expired; room_id remains permanently retired")
|
|
raise RoomNotFoundError("hosted room not found")
|
|
|
|
|
|
def _require_authority(room: sqlite3.Row, gateway_id: str, epoch: int, message: str) -> None:
|
|
if str(room["authority_gateway_id"]) != gateway_id or int(room["authority_epoch"]) != epoch:
|
|
raise AuthorityConflictError(message)
|
|
|
|
|
|
def _reload(conn: sqlite3.Connection, sql: str, params: tuple, missing: str) -> sqlite3.Row:
|
|
"""Re-read a row this transaction just wrote; a miss is an invariant violation."""
|
|
row = conn.execute(sql, params).fetchone()
|
|
if row is None: # pragma: no cover - guarded by the write above
|
|
raise RuntimeError(missing)
|
|
return row
|
|
|
|
|
|
def _room_from_row(row: sqlite3.Row, *, idempotent: bool = False) -> dict[str, Any]:
|
|
keys = row.keys() # sqlite3.Row: ``x in row`` scans values, so ``.keys()`` is load-bearing.
|
|
return {
|
|
"room_id": row["room_id"], "name": row["name"], "members": json.loads(row["members_json"]),
|
|
"authority_gateway_id": row["authority_gateway_id"], "authority_epoch": int(row["authority_epoch"]),
|
|
"revision": int(row["revision"]), "created_at": float(row["created_at"]),
|
|
"updated_at": float(row["updated_at"]), "idempotent": idempotent,
|
|
**({"disbanded_at": float(row["disbanded_at"])} if "disbanded_at" in keys and row["disbanded_at"] is not None
|
|
else {}),
|
|
**({"latest_seq": int(row["next_seq"]) - 1} if "next_seq" in keys else {})}
|
|
|
|
|
|
def _event_from_row(row: sqlite3.Row, *, idempotent: bool = False) -> dict[str, Any]:
|
|
epoch = row["authority_epoch"]
|
|
return {
|
|
"room_id": row["room_id"], "seq": int(row["seq"]), "event_id": row["event_id"], "kind": row["kind"],
|
|
"actor": json.loads(row["actor_json"]), "authority_epoch": int(epoch) if epoch is not None else None,
|
|
"payload": json.loads(row["payload_json"]), "created_at": float(row["created_at"]), "idempotent": idempotent}
|
|
|
|
|
|
def _load_event(conn: sqlite3.Connection, room_id: str, event_id: str) -> sqlite3.Row | None:
|
|
return conn.execute(_SELECT_EVENT, (room_id, event_id)).fetchone()
|
|
|
|
|
|
def _event_content(row: sqlite3.Row) -> tuple[Any, Any, Any, Any]:
|
|
"""The immutable (kind, actor_json, authority_epoch, payload_json) an event id is bound to."""
|
|
return row["kind"], row["actor_json"], row["authority_epoch"], row["payload_json"]
|
|
|
|
|
|
def _gateway_event_bytes(conn: sqlite3.Connection) -> int:
|
|
return int(conn.execute(_SUM_EVENT_BYTES).fetchone()[0])
|
|
|
|
|
|
def _insert_event(
|
|
conn: sqlite3.Connection, room: sqlite3.Row, room_id: str, seq: int, event_id: str, kind: str, actor_json: str,
|
|
epoch: int, payload_json: str, now: float, *, allow_control: bool = False) -> int:
|
|
"""Capacity-check then INSERT one event at ``seq``; returns its accounted bytes."""
|
|
event_bytes = _prepare_event(conn, room, event_id, kind, actor_json, payload_json, allow_control=allow_control)
|
|
conn.execute(_INSERT_EVENT, (room_id, seq, event_id, kind, actor_json, epoch, payload_json, now))
|
|
return event_bytes
|
|
|
|
|
|
def _prepare_event(
|
|
conn: sqlite3.Connection, room: sqlite3.Row, event_id: str, kind: str, actor_json: str, payload_json: str, *,
|
|
allow_control: bool = False) -> int:
|
|
"""Size one pending event and enforce per-room and gateway capacity; returns its bytes."""
|
|
additional_bytes = utf8_len(event_id, kind, actor_json, payload_json)
|
|
count_reserve, byte_reserve = (CONTROL_EVENT_COUNT_RESERVE, CONTROL_EVENT_BYTE_RESERVE) if allow_control else (0, 0)
|
|
gateway_byte_limit = MAX_GATEWAY_EVENT_BYTES + byte_reserve
|
|
if int(room["next_seq"]) - 1 >= MAX_EVENTS_PER_ROOM + count_reserve:
|
|
raise HostedRoomError("This Group Chat reached its history limit. Start a new Group Chat to continue.")
|
|
if int(room["event_bytes"]) + additional_bytes > MAX_ROOM_EVENT_BYTES + byte_reserve:
|
|
raise HostedRoomError("This Group Chat reached its storage limit. Start a new Group Chat to continue.")
|
|
gateway_bytes = _gateway_event_bytes(conn)
|
|
if gateway_bytes + additional_bytes > gateway_byte_limit:
|
|
_prune_disbanded_rooms_locked(
|
|
conn, now=None, max_gateway_event_bytes=max(0, gateway_byte_limit - additional_bytes))
|
|
gateway_bytes = _gateway_event_bytes(conn)
|
|
if gateway_bytes + additional_bytes > gateway_byte_limit:
|
|
raise HostedRoomError("Group Chat storage is full on this host. Delete an old Group Chat and try again.")
|
|
return additional_bytes
|
|
|
|
|
|
# --- retention -------------------------------------------------------------------
|
|
# Deleted in this order when a disbanded room's payload is purged.
|
|
_DEPENDENT_TABLES = (
|
|
"hosted_room_policy_transcript_state", "hosted_room_policy_transcript", "hosted_room_policy_publications",
|
|
"hosted_room_policy_watermarks", "hosted_room_policy_events", "hosted_room_policy_threads",
|
|
"hosted_room_policy_cursors", "hosted_room_driver_tasks", "hosted_room_driver_leases", "hosted_room_remote_runs",
|
|
"hosted_room_links", "hosted_room_peer_reservations", "hosted_room_events")
|
|
|
|
|
|
def _room_ids(conn: sqlite3.Connection, sql: str, params: tuple[Any, ...]) -> list[str]:
|
|
return [str(row["room_id"]) for row in conn.execute(sql, params).fetchall()]
|
|
|
|
|
|
def _prune_disbanded_rooms_locked(
|
|
conn: sqlite3.Connection, *, now: float | None, max_gateway_event_bytes: int | None = None) -> int:
|
|
candidates: set[str] = set()
|
|
if now is not None:
|
|
candidates.update(_room_ids(
|
|
conn, """SELECT room_id FROM hosted_rooms
|
|
WHERE disbanded_at IS NOT NULL AND disbanded_at<=?""", (now - DISBANDED_ROOM_RETENTION_SECONDS,)))
|
|
candidates.update(_room_ids(
|
|
conn, """SELECT room_id FROM hosted_rooms WHERE disbanded_at IS NOT NULL
|
|
ORDER BY disbanded_at DESC, room_id ASC LIMIT -1 OFFSET ?""", (MAX_DISBANDED_ROOM_TOMBSTONES,)))
|
|
if max_gateway_event_bytes is not None:
|
|
retained_bytes = _gateway_event_bytes(conn)
|
|
if retained_bytes > max_gateway_event_bytes:
|
|
for row in conn.execute("""SELECT room_id, event_bytes FROM hosted_rooms WHERE disbanded_at IS NOT NULL
|
|
ORDER BY disbanded_at ASC, room_id ASC"""
|
|
).fetchall():
|
|
candidates.add(str(row["room_id"]))
|
|
retained_bytes -= int(row["event_bytes"])
|
|
if retained_bytes <= max_gateway_event_bytes:
|
|
break
|
|
if not candidates:
|
|
return 0
|
|
placeholders = ",".join("?" for _ in candidates)
|
|
room_ids = tuple(sorted(candidates))
|
|
conn.execute(_RETIRE_FROM_ROOMS.format(where=f"room_id IN ({placeholders}) AND disbanded_at IS NOT NULL"), room_ids)
|
|
for table in _DEPENDENT_TABLES:
|
|
if table_exists(conn, table):
|
|
conn.execute(f"DELETE FROM {table} WHERE room_id IN ({placeholders})", room_ids)
|
|
conn.execute(f"DELETE FROM hosted_rooms WHERE room_id IN ({placeholders})", room_ids)
|
|
return len(room_ids)
|
|
|
|
|
|
def prune_disbanded_rooms(db_path: DbPath, *, now: float | None = None) -> int:
|
|
"""Purge deleted Group Chat payloads while reserving their identities."""
|
|
with _transaction(db_path, immediate=True) as conn:
|
|
return _prune_disbanded_rooms_locked(conn, now=_now(now))
|
|
|
|
|
|
# --- room links / grants / reservations / remote runs ---------------------------------
|
|
def list_room_link_records(db_path: DbPath) -> list[dict[str, Any]]:
|
|
"""Return private RoomLink records without logging or formatting grants."""
|
|
with _transaction(db_path) as conn:
|
|
rows = conn.execute("""SELECT room_id, member_id, target_url, target_profile, grant,
|
|
catalog_json, cancellation_scope_id, trace_id,
|
|
transport_security, status, updated_at
|
|
FROM hosted_room_links
|
|
ORDER BY room_id, member_id""").fetchall()
|
|
return [dict(row) for row in rows]
|
|
|
|
|
|
def upsert_room_link_record(db_path: DbPath, *, record: Mapping[str, Any], max_links: int) -> None:
|
|
"""Atomically insert or replace one private RoomLink record."""
|
|
with _transaction(db_path, immediate=True) as conn:
|
|
existing = conn.execute(
|
|
"SELECT 1 FROM hosted_room_links WHERE room_id=? AND member_id=?", (record["room_id"], record["member_id"])
|
|
).fetchone()
|
|
if existing is None and int(conn.execute("SELECT COUNT(*) FROM hosted_room_links").fetchone()[0]) >= max_links:
|
|
raise HostedRoomError("too many stored room links")
|
|
conn.execute("""INSERT INTO hosted_room_links(
|
|
room_id, member_id, target_url, target_profile, grant,
|
|
catalog_json, cancellation_scope_id, trace_id,
|
|
transport_security, status, updated_at
|
|
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
|
|
ON CONFLICT(room_id, member_id) DO UPDATE SET
|
|
target_url=excluded.target_url,
|
|
target_profile=excluded.target_profile,
|
|
grant=excluded.grant,
|
|
catalog_json=excluded.catalog_json,
|
|
cancellation_scope_id=excluded.cancellation_scope_id,
|
|
trace_id=excluded.trace_id,
|
|
transport_security=excluded.transport_security,
|
|
status=excluded.status,
|
|
updated_at=excluded.updated_at""",
|
|
tuple(record[column] for column in _LINK_COLUMNS))
|
|
|
|
|
|
def update_room_link_status(
|
|
db_path: DbPath, *, room_id: str, member_id: str, status: str, now: float | None = None) -> bool:
|
|
"""Persist a non-secret route health classification."""
|
|
with _transaction(db_path, immediate=True) as conn:
|
|
return conn.execute(
|
|
"UPDATE hosted_room_links SET status=?, updated_at=? WHERE room_id=? AND member_id=?",
|
|
(status, _now(now), room_id, member_id)).rowcount == 1
|
|
|
|
|
|
def delete_room_link_records(db_path: DbPath, *, room_id: str) -> int:
|
|
"""Delete persisted peer routes after their target grants are revoked."""
|
|
with _transaction(db_path, immediate=True) as conn:
|
|
return conn.execute("DELETE FROM hosted_room_links WHERE room_id=?", (room_id,)).rowcount
|
|
|
|
|
|
def _claim_values(claims: Mapping[str, Any], keys: tuple[str, ...]) -> dict[str, str]:
|
|
return {key: str(claims.get(key) or "") for key in keys}
|
|
|
|
|
|
def _room_grant_scope_key(claims: Mapping[str, Any]) -> str:
|
|
"""Return a stable non-secret key for one room/home/target/profile scope."""
|
|
fields = _claim_values(claims, (
|
|
"room_id", "home_install_id", "authority_gateway_id", "authority_epoch", "member_id", "target_install_id",
|
|
"target_profile"))
|
|
if not all(fields.values()):
|
|
raise HostedRoomError("room grant scope is incomplete")
|
|
return hashlib.sha256(compact_json(fields).encode("utf-8")).hexdigest()
|
|
|
|
|
|
def revoke_room_grant_scope(
|
|
db_path: DbPath, *, claims: Mapping[str, Any], expires_at: float, now: float | None = None) -> None:
|
|
"""Revoke every grant issued at or before now for one exact room scope."""
|
|
scope_key = _room_grant_scope_key(claims)
|
|
timestamp = _now(now)
|
|
expiry = float(expires_at)
|
|
if expiry <= timestamp:
|
|
return
|
|
with _transaction(db_path, immediate=True) as conn:
|
|
conn.execute("DELETE FROM hosted_room_revoked_grants WHERE expires_at<=?", (timestamp,))
|
|
conn.execute("""INSERT INTO hosted_room_revoked_grants(
|
|
scope_key, expires_at, revoked_before
|
|
) VALUES (?, ?, ?)
|
|
ON CONFLICT(scope_key) DO UPDATE SET
|
|
expires_at=MAX(hosted_room_revoked_grants.expires_at,
|
|
excluded.expires_at),
|
|
revoked_before=MAX(hosted_room_revoked_grants.revoked_before,
|
|
excluded.revoked_before)""", (scope_key, expiry, timestamp))
|
|
conn.execute("""UPDATE hosted_room_peer_reservations SET revoked_at=?, updated_at=? WHERE room_id=?
|
|
AND member_id=? AND target_profile=? AND authority_gateway_id=?
|
|
AND authority_epoch=?""",
|
|
(
|
|
timestamp, timestamp,
|
|
*_claim_values(claims, ("room_id", "member_id", "target_profile", "authority_gateway_id")).values(),
|
|
int(claims.get("authority_epoch") or 0)))
|
|
|
|
|
|
def _reservation_claims(claims: Mapping[str, Any]) -> tuple[str, str, str, str, int]:
|
|
"""Validate (room_id, member_id, target_profile, authority_gateway_id, authority_epoch)."""
|
|
values = (
|
|
_room_id(claims.get("room_id")),
|
|
*(_actor_id(claims.get(key), key) for key in ("member_id", "target_profile", "authority_gateway_id")),
|
|
int(claims.get("authority_epoch") or 0))
|
|
if values[4] < 1:
|
|
raise HostedRoomError("authority_epoch must be positive")
|
|
return values
|
|
|
|
|
|
def _reservation_superseded(row: sqlite3.Row, gateway_id: str, epoch: int) -> bool:
|
|
"""A newer epoch, or the same epoch under another gateway, outranks this claim."""
|
|
row_epoch = int(row["authority_epoch"])
|
|
return row_epoch > epoch or (row_epoch == epoch and str(row["authority_gateway_id"]) != gateway_id)
|
|
|
|
|
|
def reserve_peer_room(
|
|
db_path: DbPath, *, claims: Mapping[str, Any], expires_at: float, now: float | None = None) -> None:
|
|
"""Fence direct Desktop prompts before the first peer run is admitted."""
|
|
timestamp = _now(now)
|
|
expiry = float(expires_at)
|
|
if expiry <= timestamp:
|
|
raise HostedRoomError("peer room reservation must expire in the future")
|
|
values = _reservation_claims(claims)
|
|
room_id, _, target_profile, gateway_id, epoch = values
|
|
with _transaction(db_path, immediate=True) as conn:
|
|
conn.execute("DELETE FROM hosted_room_peer_reservations WHERE expires_at<=?", (timestamp,))
|
|
authority_rows = conn.execute(
|
|
f"""SELECT authority_gateway_id, authority_epoch
|
|
FROM hosted_room_peer_reservations {_LIVE_RESERVATION_WHERE}""", (room_id, target_profile, timestamp)
|
|
).fetchall()
|
|
if any(_reservation_superseded(row, gateway_id, epoch) for row in authority_rows):
|
|
raise AuthorityConflictError("peer room reservation authority changed")
|
|
conn.execute("""UPDATE hosted_room_peer_reservations SET revoked_at=?, updated_at=? WHERE room_id=?
|
|
AND target_profile=? AND authority_epoch<? AND revoked_at IS NULL""",
|
|
(timestamp, timestamp, room_id, target_profile, epoch))
|
|
existing = conn.execute("""SELECT authority_gateway_id, authority_epoch FROM hosted_room_peer_reservations
|
|
WHERE room_id=? AND member_id=? AND target_profile=?""", values[:3]).fetchone()
|
|
if existing is not None and _reservation_superseded(existing, gateway_id, epoch):
|
|
raise AuthorityConflictError("peer room reservation authority changed")
|
|
conn.execute("""INSERT INTO hosted_room_peer_reservations(
|
|
room_id, member_id, target_profile, authority_gateway_id,
|
|
authority_epoch, expires_at, revoked_at, created_at, updated_at
|
|
) VALUES (?, ?, ?, ?, ?, ?, NULL, ?, ?)
|
|
ON CONFLICT(room_id, member_id, target_profile) DO UPDATE SET
|
|
authority_gateway_id=excluded.authority_gateway_id,
|
|
authority_epoch=excluded.authority_epoch,
|
|
expires_at=MAX(hosted_room_peer_reservations.expires_at,
|
|
excluded.expires_at),
|
|
revoked_at=NULL,
|
|
updated_at=excluded.updated_at""", (*values, expiry, timestamp, timestamp))
|
|
|
|
|
|
def _read_one(db_path: DbPath, sql: str, params: tuple[Any, ...]) -> sqlite3.Row | None:
|
|
with _transaction(db_path) as conn:
|
|
return conn.execute(sql, params).fetchone()
|
|
|
|
|
|
def peer_room_is_reserved(db_path: DbPath, *, room_id: str, target_profile: str, now: float | None = None) -> bool:
|
|
"""Return whether a live target-side RoomLink reservation fences Desktop."""
|
|
params = (_room_id(room_id), _actor_id(target_profile, "target_profile"), _now(now))
|
|
return _read_one(db_path, _SELECT_LIVE_RESERVATION, params) is not None
|
|
|
|
|
|
def peer_room_grant_is_current(db_path: DbPath, *, claims: Mapping[str, Any], now: float | None = None) -> bool:
|
|
"""Require a grant to match the target's current live reservation."""
|
|
timestamp = _now(now)
|
|
return _read_one(
|
|
db_path, """SELECT 1 FROM hosted_room_peer_reservations WHERE room_id=? AND member_id=?
|
|
AND target_profile=? AND authority_gateway_id=? AND authority_epoch=?
|
|
AND expires_at>? AND revoked_at IS NULL LIMIT 1""", (*_reservation_claims(claims), timestamp)) is not None
|
|
|
|
|
|
def room_grant_is_revoked(db_path: DbPath, *, claims: Mapping[str, Any], now: float | None = None) -> bool:
|
|
"""Return whether a grant predates its exact scope's revocation fence."""
|
|
timestamp = _now(now)
|
|
scope_key = _room_grant_scope_key(claims)
|
|
issued_at = float(claims.get("issued_at") or 0)
|
|
row = _read_one(
|
|
db_path, """SELECT revoked_before FROM hosted_room_revoked_grants
|
|
WHERE scope_key=? AND expires_at>?""", (scope_key, timestamp))
|
|
return row is not None and issued_at <= float(row["revoked_before"])
|
|
|
|
|
|
def _remote_run_identity(record: Mapping[str, Any]) -> tuple[Any, ...]:
|
|
return tuple(record[column] for column in _REMOTE_RUN_IDENTITY_COLUMNS)
|
|
|
|
|
|
def upsert_remote_run_receipt(db_path: DbPath, *, record: Mapping[str, Any], now: float | None = None) -> None:
|
|
"""Durably bind one logical peer task attempt to its remote run handle."""
|
|
timestamp = _now(now)
|
|
identity = _remote_run_identity(record)
|
|
immutable = (*identity, record["run_id"], record["session_id"])
|
|
with _transaction(db_path, immediate=True) as conn:
|
|
existing = conn.execute(_SELECT_REMOTE_RUN, identity).fetchone()
|
|
if existing is not None:
|
|
if (*_remote_run_identity(existing), existing["run_id"], existing["session_id"]) != immutable:
|
|
raise HostedRoomError("remote run receipt conflicts with its logical task")
|
|
conn.execute(
|
|
f"UPDATE hosted_room_remote_runs SET updated_at=? WHERE {_REMOTE_RUN_WHERE}", (timestamp, *identity))
|
|
return
|
|
conn.execute("""INSERT INTO hosted_room_remote_runs(
|
|
room_id, home_install_id, authority_gateway_id,
|
|
authority_epoch, member_id, target_install_id,
|
|
target_profile, task_id, execution_generation, run_id,
|
|
session_id, created_at, updated_at
|
|
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)""", (*immutable, timestamp, timestamp))
|
|
|
|
|
|
def list_remote_run_receipts(
|
|
db_path: DbPath, *, room_id: str | None = None, target_profile: str | None = None, session_id: str | None = None
|
|
) -> list[dict[str, Any]]:
|
|
"""Return remote run handles in durable task order."""
|
|
candidates = (("room_id", room_id), ("target_profile", target_profile), ("session_id", session_id))
|
|
filters = [(column, value) for column, value in candidates if value is not None]
|
|
where = f" WHERE {' AND '.join(f'{column}=?' for column, _ in filters)}" if filters else ""
|
|
with _transaction(db_path) as conn:
|
|
rows = conn.execute(
|
|
"SELECT * FROM hosted_room_remote_runs" + where
|
|
+ " ORDER BY created_at, task_id, execution_generation", [value for _, value in filters]).fetchall()
|
|
return [dict(row) for row in rows]
|
|
|
|
|
|
def remote_run_receipt(db_path: DbPath, *, record: Mapping[str, Any]) -> dict[str, Any] | None:
|
|
"""Return the exact durable remote run handle for one task attempt."""
|
|
row = _read_one(db_path, _SELECT_REMOTE_RUN, _remote_run_identity(record))
|
|
return dict(row) if row is not None else None
|
|
|
|
|
|
# --- rooms and events -------------------------------------------------------------
|
|
def _adopt_legacy_room(
|
|
conn: sqlite3.Connection, existing: sqlite3.Row, *, room_id: str, members_json: str, authority_gateway_id: str,
|
|
now: float) -> dict[str, Any]:
|
|
"""Claim a 'legacy'-authority room for a real gateway with a fenced claim event."""
|
|
target_epoch = int(existing["authority_epoch"]) + 1
|
|
seq = int(existing["next_seq"])
|
|
claim_bytes = _insert_event(
|
|
conn, existing, room_id, seq, "system:authority-adopted", "authority.claimed",
|
|
_system_actor_json("authority-control"), target_epoch,
|
|
_claim_payload_json("legacy", authority_gateway_id, target_epoch), now, allow_control=True)
|
|
_fenced_update(conn, """UPDATE hosted_rooms
|
|
SET members_json=?, authority_gateway_id=?, authority_epoch=?,
|
|
next_seq=next_seq+1, revision=revision+1, event_bytes=event_bytes+?, updated_at=?
|
|
WHERE room_id=? AND authority_gateway_id='legacy' AND authority_epoch=? AND next_seq=?
|
|
AND disbanded_at IS NULL""",
|
|
(
|
|
members_json, authority_gateway_id, target_epoch, claim_bytes, now, room_id,
|
|
int(existing["authority_epoch"]), seq), AuthorityConflictError("legacy room adoption lost its fence"))
|
|
existing = _reload(conn, _SELECT_ROOM, (room_id,), "adopted room could not be reloaded")
|
|
claim_event = _reload(
|
|
conn, _SELECT_EVENT, (room_id, "system:authority-adopted"), "legacy adoption event could not be reloaded")
|
|
return {**_room_from_row(existing, idempotent=True), "adopted": True, "claim_event": _event_from_row(claim_event)}
|
|
|
|
|
|
def create_room(
|
|
db_path: DbPath, *, room_id: Any, name: Any, members: Any, authority_gateway_id: Any, now: float | None = None
|
|
) -> dict[str, Any]:
|
|
"""Create a room, or return the identical existing room idempotently."""
|
|
room_id = _room_id(room_id)
|
|
name = _validate_room_name(name)
|
|
normalized_members, members_json = _validate_members(members)
|
|
authority_gateway_id = _actor_id(authority_gateway_id, "authority_gateway_id")
|
|
now = _now(now)
|
|
with _transaction(db_path, immediate=True) as conn:
|
|
if _is_retired(conn, room_id):
|
|
raise RoomConflictError("room_id belongs to a disbanded room")
|
|
existing = conn.execute(_SELECT_ROOM_WITH_BYTES, (room_id,)).fetchone()
|
|
if existing is not None:
|
|
if existing["disbanded_at"] is not None:
|
|
raise RoomConflictError("room_id belongs to a disbanded room")
|
|
legacy_adoption = (existing["authority_gateway_id"] == "legacy" and authority_gateway_id != "legacy")
|
|
members_match = existing["members_json"] == members_json or (
|
|
legacy_adoption and _legacy_members_match(existing["members_json"], normalized_members))
|
|
if existing["name"] != name or not members_match:
|
|
raise RoomConflictError("room_id already exists with different state")
|
|
if legacy_adoption:
|
|
return _adopt_legacy_room(
|
|
conn, existing, room_id=room_id, members_json=members_json,
|
|
authority_gateway_id=authority_gateway_id, now=now)
|
|
if existing["authority_gateway_id"] != authority_gateway_id:
|
|
raise RoomConflictError("room_id already belongs to a different authority")
|
|
return _room_from_row(existing, idempotent=True)
|
|
active = conn.execute("SELECT COUNT(*) FROM hosted_rooms WHERE disbanded_at IS NULL").fetchone()[0]
|
|
if int(active) >= MAX_ACTIVE_ROOMS:
|
|
raise HostedRoomError("This host has too many active Group Chats. Delete one and try again.")
|
|
conn.execute(
|
|
f"""INSERT INTO hosted_rooms ({_ROOM_COLUMNS_WITH_BYTES})
|
|
VALUES (?, ?, ?, ?, 1, 1, 0, 1, ?, ?, NULL)""",
|
|
(room_id, name, members_json, authority_gateway_id, now, now))
|
|
row = _reload(
|
|
conn, """SELECT room_id, name, members_json, authority_gateway_id, authority_epoch, revision,
|
|
created_at, updated_at FROM hosted_rooms WHERE room_id=?""", (room_id,),
|
|
"created room could not be reloaded")
|
|
return {**_room_from_row(row), "members": normalized_members}
|
|
|
|
|
|
def list_rooms(
|
|
db_path: DbPath, *, include_disbanded: bool = False, limit: int = MAX_ROOM_LIST_LIMIT, offset: int = 0
|
|
) -> list[dict[str, Any]]:
|
|
"""Return one bounded read-only page ordered by most recent change."""
|
|
limit = _bounded_limit(limit, MAX_ROOM_LIST_LIMIT)
|
|
offset = _non_negative(offset, "offset")
|
|
with closing(_read_connection(db_path)) as conn:
|
|
rows = conn.execute(
|
|
f"""SELECT {_ROOM_COLUMNS} FROM hosted_rooms WHERE disbanded_at IS NULL OR ?
|
|
ORDER BY updated_at DESC, room_id ASC LIMIT ? OFFSET ?""", (int(include_disbanded), limit, offset)
|
|
).fetchall()
|
|
return [_room_from_row(row) for row in rows]
|
|
|
|
|
|
def rename_room(db_path: DbPath, *, room_id: Any, event_id: Any, name: Any, now: float | None = None) -> dict[str, Any]:
|
|
"""Rename a live room and append its replay event atomically."""
|
|
room_id = _room_id(room_id)
|
|
event_id = _event_id(event_id)
|
|
name = _validate_room_name(name)
|
|
now = _now(now)
|
|
actor_json = _system_actor_json("room-control")
|
|
payload_json = _payload_json({"name": name})
|
|
with _transaction(db_path, immediate=True) as conn:
|
|
room = _room_row(conn, _SELECT_ROOM_WITH_BYTES, (room_id,), room_id)
|
|
if room["disbanded_at"] is not None:
|
|
raise RoomNotFoundError("hosted room not found")
|
|
existing = _load_event(conn, room_id, event_id)
|
|
if existing is not None:
|
|
if existing["kind"] != "room.renamed" or existing["payload_json"] != payload_json:
|
|
raise EventConflictError("event_id already exists with different immutable content")
|
|
return {**_room_from_row(room, idempotent=True), "event": _event_from_row(existing, idempotent=True)}
|
|
seq = int(room["next_seq"])
|
|
event_bytes = _prepare_event(conn, room, event_id, "room.renamed", actor_json, payload_json)
|
|
# Rename updates the room row before inserting its event (order is load-bearing).
|
|
conn.execute("""UPDATE hosted_rooms
|
|
SET name=?, next_seq=?, event_bytes=event_bytes+?, revision=revision+1, updated_at=?
|
|
WHERE room_id=?""", (name, seq + 1, event_bytes, now, room_id))
|
|
conn.execute(_INSERT_EVENT, (
|
|
room_id, seq, event_id, "room.renamed", actor_json, int(room["authority_epoch"]), payload_json, now))
|
|
updated = conn.execute(_SELECT_ROOM, (room_id,)).fetchone()
|
|
return {**_room_from_row(updated), "event": _event_from_row(_load_event(conn, room_id, event_id))}
|
|
|
|
|
|
def append_event(
|
|
db_path: DbPath, *, room_id: Any, event_id: Any, kind: Any, actor: Any, payload: Any,
|
|
authority_gateway_id: Any = None, authority_epoch: Any = None, now: float | None = None) -> dict[str, Any]:
|
|
"""Append one immutable event and allocate its per-room sequence atomically; repeating an ``event_id``
|
|
with identical content returns the original, different content fails closed."""
|
|
room_id = _room_id(room_id)
|
|
event_id = _event_id(event_id)
|
|
kind = _validate_event_kind(kind)
|
|
normalized_actor, actor_json = _validate_actor(actor, kind=kind)
|
|
# Every admitted actor kind is room-scoped, so authority fields are always required.
|
|
authority_gateway_id = _actor_id(authority_gateway_id, "authority_gateway_id")
|
|
if normalized_actor["kind"] == "gateway" and normalized_actor["id"] != authority_gateway_id:
|
|
raise HostedRoomError("gateway actor.id must match authority_gateway_id")
|
|
authority_epoch = _require_positive_int(authority_epoch, "authority_epoch")
|
|
if not isinstance(payload, dict):
|
|
raise HostedRoomError("payload must be an object")
|
|
payload_json = _payload_json(payload)
|
|
now = _now(now)
|
|
with _transaction(db_path, immediate=True) as conn:
|
|
existing = _load_event(conn, room_id, event_id)
|
|
if existing is not None:
|
|
if _event_content(existing) != (kind, actor_json, authority_epoch, payload_json):
|
|
raise EventConflictError("event_id already exists with different content")
|
|
return _event_from_row(existing, idempotent=True)
|
|
room = _room_row(
|
|
conn, """SELECT next_seq, event_bytes, authority_gateway_id, authority_epoch
|
|
FROM hosted_rooms WHERE room_id=? AND disbanded_at IS NULL""", (room_id,), room_id)
|
|
_require_authority(room, authority_gateway_id, authority_epoch, "stale hosted room authority")
|
|
seq = int(room["next_seq"])
|
|
event_bytes = _insert_event(
|
|
conn, room, room_id, seq, event_id, kind, actor_json, authority_epoch, payload_json, now,
|
|
allow_control=kind in _CONTROL_EVENT_KINDS)
|
|
_fenced_update(conn, """UPDATE hosted_rooms SET next_seq=?, event_bytes=event_bytes+?, updated_at=?
|
|
WHERE room_id=? AND next_seq=?""", (seq + 1, event_bytes, now, room_id, seq),
|
|
RuntimeError("hosted room sequence advance lost its write fence"))
|
|
row = _reload(
|
|
conn, f"SELECT {_EVENT_COLUMNS} FROM hosted_room_events WHERE room_id=? AND seq=?", (room_id, seq),
|
|
"appended event could not be reloaded")
|
|
return {**_event_from_row(row), "actor": normalized_actor}
|
|
|
|
|
|
def _probe(path: Path, table: str, query: str, params: tuple[Any, ...], unavailable: str) -> bool:
|
|
"""Non-blocking existence probe: short timeout, no schema creation or migration."""
|
|
if not path.is_file():
|
|
return False
|
|
try:
|
|
with closing(sqlite3.connect(path, timeout=0.05)) as conn:
|
|
table_row = conn.execute(
|
|
f"SELECT 1 FROM sqlite_master WHERE type='table' AND name='{table}' LIMIT 1").fetchone()
|
|
return table_row is not None and conn.execute(query, params).fetchone() is not None
|
|
except sqlite3.Error as exc:
|
|
raise RoomProbeUnavailableError(unavailable) from exc
|
|
|
|
|
|
def probe_hosted_room(db_path: DbPath, *, room_id: Any) -> bool:
|
|
"""Check room ownership without creating or migrating the shared store; runs on the synchronous
|
|
prompt-admission path for older Desktop clients, so it fails fast under contention instead of blocking
|
|
the WebSocket reader for SQLite's ten-second timeout."""
|
|
return _probe(
|
|
Path(db_path), "hosted_rooms", "SELECT 1 FROM hosted_rooms WHERE room_id=? AND disbanded_at IS NULL LIMIT 1",
|
|
(_room_id(room_id),), "hosted room ownership is temporarily unavailable")
|
|
|
|
|
|
def probe_peer_room_reservation(
|
|
db_path: DbPath, *, room_id: Any, target_profile: Any, now: float | None = None) -> bool:
|
|
"""Check a peer reservation without creating or migrating shared state."""
|
|
params = (_room_id(room_id), _actor_id(target_profile, "target_profile"), _now(now))
|
|
return _probe(
|
|
Path(db_path), "hosted_room_peer_reservations", _SELECT_LIVE_RESERVATION, params,
|
|
"peer room ownership is temporarily unavailable")
|
|
|
|
|
|
def room_state(db_path: DbPath, *, room_id: Any, include_disbanded: bool = False) -> dict[str, Any]:
|
|
"""Return durable replay and authority state for one room."""
|
|
room_id = _room_id(room_id)
|
|
with _transaction(db_path) as conn:
|
|
row = _room_row(
|
|
conn,
|
|
f"""SELECT {_ROOM_COLUMNS} FROM hosted_rooms WHERE room_id=? AND (disbanded_at IS NULL
|
|
OR ?)""", (room_id, int(include_disbanded)), room_id)
|
|
claim_row = conn.execute(
|
|
f"""SELECT {_EVENT_COLUMNS} FROM hosted_room_events WHERE room_id=?
|
|
AND kind='authority.claimed' AND authority_epoch=? ORDER BY seq DESC LIMIT 1""",
|
|
(room_id, int(row["authority_epoch"]))).fetchone()
|
|
return {**_room_from_row(row), **({"authority_claim": _event_from_row(claim_row)} if claim_row is not None else {})}
|
|
|
|
|
|
def request_room_stop(
|
|
db_path: DbPath, *, room_id: Any, cancel_id: Any, expected_gateway_id: Any, expected_epoch: Any) -> dict[str, Any]:
|
|
"""Append an idempotent fence that supersedes earlier user turns."""
|
|
cancel_id = _validate_identifier(cancel_id, label="cancel_id", max_chars=MAX_EVENT_ID_CHARS)
|
|
return append_event(
|
|
db_path, room_id=room_id, event_id=f"room-stop:{hashlib.sha256(cancel_id.encode()).hexdigest()[:32]}",
|
|
kind="room.stop_requested", actor={"kind": "gateway", "id": expected_gateway_id},
|
|
payload={"cancel_id": cancel_id}, authority_gateway_id=expected_gateway_id, authority_epoch=expected_epoch)
|
|
|
|
|
|
def claim_authority(
|
|
db_path: DbPath, *, room_id: Any, expected_gateway_id: Any, expected_epoch: Any, new_gateway_id: Any, event_id: Any,
|
|
now: float | None = None) -> dict[str, Any]:
|
|
"""Fence a verified authority transfer with a compare-and-swap epoch; does not decide *when* takeover is
|
|
safe (a replicated driver calls it only after its lease/quorum policy established that the previous
|
|
owner can no longer commit)."""
|
|
room_id = _room_id(room_id)
|
|
expected_gateway_id = _actor_id(expected_gateway_id, "expected_gateway_id")
|
|
new_gateway_id = _actor_id(new_gateway_id, "new_gateway_id")
|
|
event_id = _event_id(event_id)
|
|
_require_positive_int(expected_epoch, "expected_epoch")
|
|
now = _now(now)
|
|
target_epoch = expected_epoch + 1
|
|
claim_actor_json = _system_actor_json("authority-control")
|
|
claim_payload_json = _claim_payload_json(expected_gateway_id, new_gateway_id, target_epoch)
|
|
with _transaction(db_path, immediate=True) as conn:
|
|
row = _room_row(
|
|
conn, """SELECT authority_gateway_id, authority_epoch, next_seq, event_bytes
|
|
FROM hosted_rooms WHERE room_id=? AND disbanded_at IS NULL""", (room_id,), room_id)
|
|
existing_event = _load_event(conn, room_id, event_id)
|
|
idempotent = existing_event is not None
|
|
if idempotent:
|
|
if _event_content(existing_event) != (
|
|
"authority.claimed", claim_actor_json, target_epoch, claim_payload_json):
|
|
raise EventConflictError("event_id already exists with different content")
|
|
if str(row["authority_gateway_id"]) != new_gateway_id or int(row["authority_epoch"]) != target_epoch:
|
|
raise AuthoritySupersededError("authority claim succeeded but was later superseded")
|
|
else:
|
|
_require_authority(row, expected_gateway_id, expected_epoch, "hosted room authority changed")
|
|
# Insert the claim event, then CAS the room's authority behind the epoch fence.
|
|
claim_bytes = _insert_event(
|
|
conn, row, room_id, int(row["next_seq"]), event_id, "authority.claimed", claim_actor_json, target_epoch,
|
|
claim_payload_json, now, allow_control=True)
|
|
_fenced_update(conn, """UPDATE hosted_rooms SET authority_gateway_id=?,
|
|
authority_epoch=authority_epoch+1, next_seq=next_seq+1,
|
|
event_bytes=event_bytes+?, revision=revision+1, updated_at=? WHERE room_id=?
|
|
AND disbanded_at IS NULL AND authority_gateway_id=? AND authority_epoch=?""",
|
|
(new_gateway_id, claim_bytes, now, room_id, expected_gateway_id, expected_epoch),
|
|
AuthorityConflictError("hosted room authority changed"))
|
|
existing_event = _load_event(conn, room_id, event_id)
|
|
state_row = _reload(
|
|
conn, """SELECT room_id, name, members_json, authority_gateway_id, authority_epoch, next_seq,
|
|
revision, created_at, updated_at FROM hosted_rooms WHERE room_id=?""", (room_id,),
|
|
"claimed room could not be reloaded")
|
|
if existing_event is None: # pragma: no cover - both claim paths set it
|
|
raise RuntimeError("authority claim event could not be reloaded")
|
|
return {
|
|
**_room_from_row(state_row, idempotent=idempotent),
|
|
"claim_event": _event_from_row(existing_event, idempotent=idempotent)}
|
|
|
|
|
|
def _disband_replay(conn: sqlite3.Connection, room_id: str, room: sqlite3.Row | None) -> dict[str, Any] | None:
|
|
"""Idempotent replay for a retired or already-disbanded room; None when the room is live."""
|
|
if room is None:
|
|
retired = conn.execute("SELECT retired_at FROM hosted_room_retired_ids WHERE room_id=?", (room_id,)).fetchone()
|
|
if retired is None:
|
|
raise RoomNotFoundError("hosted room not found")
|
|
return {
|
|
"room_id": room_id, "disbanded_at": float(retired["retired_at"]), "idempotent": True,
|
|
"history_expired": True}
|
|
if room["disbanded_at"] is None:
|
|
return None
|
|
conn.execute(_INSERT_RETIRED, (room_id, float(room["disbanded_at"])))
|
|
event = _load_event(conn, room_id, "system:room-disbanded")
|
|
return {
|
|
"room_id": room_id, "disbanded_at": float(room["disbanded_at"]), "idempotent": True,
|
|
**({"event": _event_from_row(event, idempotent=True)} if event is not None else {})}
|
|
|
|
|
|
def disband_room(
|
|
db_path: DbPath, *, room_id: Any, expected_gateway_id: Any, expected_epoch: Any, now: float | None = None
|
|
) -> dict[str, Any]:
|
|
"""Tombstone a room id permanently and idempotently."""
|
|
room_id = _room_id(room_id)
|
|
expected_gateway_id = _actor_id(expected_gateway_id, "expected_gateway_id")
|
|
_require_positive_int(expected_epoch, "expected_epoch")
|
|
now = _now(now)
|
|
with _transaction(db_path, immediate=True) as conn:
|
|
room = conn.execute("""SELECT authority_gateway_id, authority_epoch, next_seq, event_bytes, disbanded_at
|
|
FROM hosted_rooms WHERE room_id=?""", (room_id,)).fetchone()
|
|
if (replay := _disband_replay(conn, room_id, room)) is not None:
|
|
return replay
|
|
_require_authority(room, expected_gateway_id, expected_epoch, "stale hosted room authority")
|
|
disband_bytes = _insert_event(
|
|
conn, room, room_id, int(room["next_seq"]), "system:room-disbanded", "room.disbanded",
|
|
_system_actor_json("room-control"), int(room["authority_epoch"]), _payload_json({"room_id": room_id}), now,
|
|
allow_control=True)
|
|
_fenced_update(conn, """UPDATE hosted_rooms
|
|
SET disbanded_at=?, updated_at=?, revision=revision+1,
|
|
next_seq=next_seq+1, event_bytes=event_bytes+?
|
|
WHERE room_id=? AND disbanded_at IS NULL AND authority_gateway_id=?
|
|
AND authority_epoch=?""",
|
|
(now, now, disband_bytes, room_id, expected_gateway_id, expected_epoch),
|
|
RoomConflictError("hosted room disband lost its fence"))
|
|
conn.execute(_INSERT_RETIRED, (room_id, now))
|
|
event = _reload(
|
|
conn, _SELECT_EVENT, (room_id, "system:room-disbanded"), "room disband event could not be reloaded")
|
|
_prune_disbanded_rooms_locked(conn, now=now, max_gateway_event_bytes=MAX_GATEWAY_EVENT_BYTES)
|
|
return {"room_id": room_id, "disbanded_at": now, "idempotent": False, "event": _event_from_row(event)}
|
|
|
|
|
|
def read_events(
|
|
db_path: DbPath, *, room_id: Any, since_seq: Any = 0, limit: Any = 100, include_disbanded: bool = False
|
|
) -> dict[str, Any]:
|
|
"""Read a monotonic room-log delta after ``since_seq``."""
|
|
room_id = _room_id(room_id)
|
|
since_seq = _non_negative(since_seq, "since_seq")
|
|
limit = _bounded_limit(limit, MAX_LOG_LIMIT)
|
|
with _transaction(db_path) as conn:
|
|
room = _room_row(
|
|
conn, """SELECT next_seq, authority_gateway_id, authority_epoch FROM hosted_rooms
|
|
WHERE room_id=? AND (disbanded_at IS NULL OR ?)""", (room_id, int(include_disbanded)), room_id)
|
|
latest_seq = int(room["next_seq"]) - 1
|
|
authority = {"gateway_id": str(room["authority_gateway_id"]), "epoch": int(room["authority_epoch"])}
|
|
if since_seq > latest_seq:
|
|
raise HostedRoomError("since_seq is ahead of the hosted room log")
|
|
rows = conn.execute(
|
|
f"""WITH candidates AS (
|
|
SELECT {_EVENT_COLUMNS},
|
|
SUM(
|
|
LENGTH(CAST(event_id AS BLOB)) +
|
|
LENGTH(CAST(kind AS BLOB)) +
|
|
LENGTH(CAST(actor_json AS BLOB)) +
|
|
LENGTH(CAST(payload_json AS BLOB))
|
|
) OVER (ORDER BY seq ASC) AS cumulative_bytes
|
|
FROM hosted_room_events
|
|
WHERE room_id=? AND seq>?
|
|
ORDER BY seq ASC LIMIT ?
|
|
)
|
|
SELECT {_EVENT_COLUMNS}
|
|
FROM candidates
|
|
WHERE cumulative_bytes<=?
|
|
ORDER BY seq ASC""", (room_id, since_seq, limit, MAX_LOG_PAGE_BYTES)).fetchall()
|
|
events = [_event_from_row(row) for row in rows]
|
|
def build_page(page_events: list[dict[str, Any]]) -> dict[str, Any]:
|
|
cursor = page_events[-1]["seq"] if page_events else since_seq
|
|
return {"events": page_events, "cursor": cursor, "latest_seq": latest_seq, "has_more": cursor < latest_seq,
|
|
"authority": authority}
|
|
def fits(page_events: list[dict[str, Any]]) -> bool:
|
|
page_json = json.dumps(build_page(page_events), ensure_ascii=False, separators=(",", ":"))
|
|
return utf8_len(page_json) <= MAX_LOG_PAGE_BYTES
|
|
if events and not fits(events):
|
|
# Binary-search the largest prefix whose serialized page fits the budget.
|
|
low, high = 1, len(events)
|
|
while low < high:
|
|
middle = (low + high + 1) // 2
|
|
low, high = (middle, high) if fits(events[:middle]) else (low, middle - 1)
|
|
events = events[:low]
|
|
if not fits(events):
|
|
raise HostedRoomError("hosted room event exceeds replay page limit")
|
|
return build_page(events)
|
|
|
|
|
|
# ---- BEGIN PLUGIN-COMPAT (revert-scheduled; see COMPAT_MANIFEST.md) ----
|
|
# Names external plugins imported from this module before the Sep 2026 decomposition.
|
|
# Internal code MUST NOT use these (scripts/check_compat_pointers.py fails CI if it does).
|
|
# The whole block is removed by reverting the commit that added it.
|
|
from typing import Iterator # noqa: F401,E402
|
|
from typing import NoReturn # noqa: F401,E402
|
|
from contextlib import contextmanager # noqa: F401,E402
|
|
import time # noqa: F401,E402
|
|
# ---- END PLUGIN-COMPAT ----
|