273 lines
13 KiB
Python
273 lines
13 KiB
Python
"""Read-only identity and existing private-WeChat recipients for review reminders.
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This module does not initialize/decrypt databases, send messages, or choose an
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account/contact by display name. UI refreshes run it on a background worker.
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"""
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from __future__ import annotations
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from collections import OrderedDict
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from datetime import datetime
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import math
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from pathlib import Path
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import re
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import sqlite3
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import threading
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from runtime_paths import application_data_dir
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_ACCOUNT = re.compile(r"[0-9]{1,24}\Z")
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_PRIVATE = re.compile(r"M:[0-9]{1,24}\Z")
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_LOCK = threading.RLock()
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_CACHE = OrderedDict()
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def active_context() -> dict:
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try:
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from wecom_native_sender import discover, readonly_build_validation_scope
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except ImportError:
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return {"account_id": "", "account_name": "", "ready": False,
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"reason": "当前版本不支持医疗助理审核提醒"}
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try:
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with readonly_build_validation_scope():
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identity = discover()
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account = str(identity.get("accountId") or "")
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if not _ACCOUNT.fullmatch(account):
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raise ValueError("未取得可核验的当前企微账号")
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return {"account_id": account, "account_name": account, "ready": True,
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"reason": "", "pid": int(identity.get("pid") or 0)}
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except Exception as exc:
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return {"account_id": "", "account_name": "", "ready": False,
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"reason": f"当前企微账号尚未核验：{str(exc)[:240]}"}
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def _roots():
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data, source = application_data_dir(), Path(__file__).resolve().parent
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return [data / "wxwork_reply_cache", data / "archive_auto_backup" / "decrypted",
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data / "wxwork_decrypted", source / "wxwork_reply_cache",
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source / "archive_auto_backup" / "decrypted", source / "wxwork_decrypted"]
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def _modified(path):
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# An active SQLite WAL can be newer than the main database file.
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stamps = [path.stat().st_mtime_ns]
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try:
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stamps.append(Path(str(path) + "-wal").stat().st_mtime_ns)
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except OSError:
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pass
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return max(stamps)
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def _databases(account, cache_roots=None):
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if not _ACCOUNT.fullmatch(str(account)):
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raise ValueError("企微账号格式无效")
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found = {}
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for root in cache_roots if cache_roots is not None else _roots():
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directory = Path(root) / account
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# Reject a linked directory belonging to a different account.
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if directory.resolve().name != account:
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continue
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for name in ("message.db", "session.db", "user.db"):
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path = directory / name
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if not path.is_file() or path.resolve().parent != directory.resolve():
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continue
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try:
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if name not in found or _modified(path) > _modified(found[name]):
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found[name] = path
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except OSError:
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continue
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if "message.db" not in found:
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raise ValueError("当前企微账号的本机消息库尚不可读，请先在微信消息库中完成读取")
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return found
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def _revision(databases):
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result = []
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for name, path in sorted(databases.items()):
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for candidate in (path, Path(str(path) + "-wal")):
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try:
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stat = candidate.stat()
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result.append((name, str(candidate.resolve()), stat.st_size, stat.st_mtime_ns,
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stat.st_ctime_ns, stat.st_ino))
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except OSError:
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result.append((name, str(candidate), None))
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return tuple(result)
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def _open(path):
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connection = sqlite3.connect(path.resolve().as_uri() + "?mode=ro", uri=True, timeout=2)
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connection.execute("PRAGMA query_only=ON")
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return connection
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def _names(path, table, wanted, key="id"):
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if path is None:
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return []
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connection = _open(path)
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try:
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columns = {str(row[1]) for row in connection.execute(f'PRAGMA table_info("{table}")')}
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fields = [field for field in wanted if field in columns]
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if key not in fields:
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return []
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return [dict(zip(fields, row)) for row in connection.execute(f"SELECT {','.join(fields)} FROM {table}")]
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finally:
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connection.close()
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def _text(value):
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return str(value or "").strip()
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def _contact_time(value):
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try:
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stamp = float(value or 0)
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if not math.isfinite(stamp) or stamp < 0:
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stamp = 0
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if stamp > 10 ** 12:
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stamp /= 1000
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return stamp, datetime.fromtimestamp(stamp).strftime("%Y-%m-%d %H:%M") if stamp else ""
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except (ValueError, TypeError, OSError, OverflowError):
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return 0, ""
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def _contacts(account, cache_roots=None):
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databases = _databases(account, cache_roots)
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revision = _revision(databases)
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key = (account, revision)
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with _LOCK:
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if key in _CACHE:
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_CACHE.move_to_end(key)
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return _CACHE[key]
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users, aliases, remarks, friends, addressbook = {}, {}, {}, {}, {}
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user_db = databases.get("user.db")
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for row in _names(user_db, "user_table", ("id", "name", "real_name", "account")):
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uid = str(row["id"])
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values = [_text(row.get(field)) for field in ("name", "real_name", "account")]
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users[uid] = next((value for value in values if value), "")
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aliases[uid] = values
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for row in _names(user_db, "external_user_relation_v3",
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("user_id", "remarks", "real_remarks"), key="user_id"):
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uid = str(row["user_id"])
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values = [_text(row.get(field)) for field in ("real_remarks", "remarks")]
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remarks[uid] = next((value for value in values if value), "")
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aliases.setdefault(uid, []).extend(values)
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# Only an explicit UID <-> wx_id relation may link address-book names
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# to a sendable M: conversation. Never derive a UID from gene or a name.
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for row in _names(user_db, "wx_friend", ("user_id", "nick_name", "wx_id"), key="user_id"):
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uid, wxid = str(row["user_id"]), _text(row.get("wx_id"))
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if _ACCOUNT.fullmatch(uid):
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friends.setdefault(uid, []).append((wxid, _text(row.get("nick_name"))))
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for row in _names(user_db, "wechat_contactV1", ("wxid", "name"), key="wxid"):
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wxid = _text(row.get("wxid"))
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if wxid:
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addressbook[wxid] = _text(row.get("name")) or "未命名微信联系人"
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names = {}
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for row in _names(databases.get("session.db"), "conversation_table",
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("id", "name", "roomname_remark", "session_id")):
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names[str(row["id"])] = _text(row.get("roomname_remark")) or _text(row.get("name"))
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connection = _open(databases["message.db"])
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try:
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columns = {str(row[1]) for row in connection.execute('PRAGMA table_info("message_table")')}
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if "conversation_id" not in columns:
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raise ValueError("当前账号消息库缺少会话标识")
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timestamp = "MAX(CAST(send_time AS REAL))" if "send_time" in columns else "0"
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# Never read message bodies or use a preview to identify recipients.
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rows = connection.execute(
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f"SELECT conversation_id,{timestamp} FROM message_table "
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"WHERE conversation_id LIKE 'M:%' GROUP BY conversation_id").fetchall()
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finally:
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connection.close()
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items, linked = [], set()
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# Conflicting relation rows must not silently merge distinct identities.
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owners = {}
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for uid, relations in friends.items():
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for wxid, _nickname in relations:
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if wxid:
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owners.setdefault(wxid, set()).add(uid)
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for conv_id, stamp in rows:
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conv_id = str(conv_id or "")
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if not _PRIVATE.fullmatch(conv_id):
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continue
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uid = conv_id[2:]
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extra = list(aliases.get(uid, []))
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display_names = []
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distinct_wxids = {value for value, _ in friends.get(uid, []) if value}
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for wxid, nickname in friends.get(uid, []):
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if not wxid or owners.get(wxid) != {uid} or len(distinct_wxids) != 1:
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continue
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display_names.extend([nickname, addressbook.get(wxid, "")])
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extra.extend([nickname, addressbook.get(wxid, ""), wxid])
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linked.add(wxid)
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name = names.get(conv_id) or remarks.get(uid) or users.get(uid) or next(
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(value for value in display_names if value), "微信联系人")
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stamp, last_time = _contact_time(stamp)
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items.append({"id": conv_id, "name": name, "kind": "微信客户",
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"lastTimestamp": stamp, "lastTime": last_time,
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"identityLabel": f"微信联系人 · 联系编号 {uid}",
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"selectable": True, "unavailableReason": "",
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"searchText": " ".join([name, conv_id, *extra])})
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for wxid, name in addressbook.items():
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if wxid in linked:
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continue
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items.append({"id": "contact:" + wxid, "name": name, "kind": "微信通讯录",
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"lastTimestamp": 0, "lastTime": "", "selectable": False,
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"identityLabel": f"微信通讯录 · 联系编号 {wxid}",
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"unavailableReason": "尚无可核验的私人微信会话。请在当前托管企微与此联系人建立单聊并产生一条消息，再刷新消息库。",
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"searchText": name + " " + wxid})
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items.sort(key=lambda row: (not row["selectable"], -row["lastTimestamp"], row["name"].casefold(), row["id"]))
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result = (users.get(account) or account, items)
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_CACHE[key] = result
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while len(_CACHE) > 8:
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_CACHE.popitem(last=False)
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return result
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def list_recipients(account: str, query="", limit=50, offset=0, *, cache_roots=None) -> dict:
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context = active_context()
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if not context["ready"] or str(context["account_id"]) != str(account):
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return {**context, "ready": False, "items": [], "total": 0, "has_more": False,
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"reason": context["reason"] or "当前企业微信账号已变化，请重新读取账号"}
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try:
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name, contacts = _contacts(str(account), cache_roots)
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current = active_context()
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if not current["ready"] or str(current["account_id"]) != str(account):
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raise ValueError("读取期间企业微信账号已变化，请重新读取账号")
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needle = str(query or "").strip().casefold()[:100]
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matches = [item for item in contacts if not needle or needle in item.get("searchText", f"{item['name']} {item['id']}").casefold()]
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offset, limit = max(0, int(offset)), max(1, min(100, int(limit)))
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return {**context, "account_name": name, "items": [dict(row) for row in matches[offset:offset + limit]],
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"total": len(matches), "offset": offset, "has_more": offset + limit < len(matches),
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"selectable_total": sum(bool(item.get("selectable", True)) for item in matches),
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"contact_total": sum(not item.get("selectable", True) for item in matches)}
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except (ValueError, OSError, sqlite3.Error) as exc:
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return {**context, "ready": False, "items": [], "total": 0, "has_more": False, "reason": str(exc)[:300]}
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def validate_recipient(account: str, conv_id: str, *, cache_roots=None) -> dict:
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if not _PRIVATE.fullmatch(str(conv_id or "")):
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return {"ok": False, "reason": "请选择已有的私人微信单聊联系人", "recipient": None}
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context = active_context()
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if not context["ready"] or context["account_id"] != str(account):
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return {"ok": False, "reason": context["reason"] or "当前企业微信账号已变化，请重新选择", "recipient": None}
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try:
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name, contacts = _contacts(str(account), cache_roots)
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recipient = next((dict(item) for item in contacts if item["id"] == conv_id), None)
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if recipient is None or not recipient.get("selectable", True):
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raise ValueError("所选联系人不在当前账号的已有私人微信单聊中，请刷新后重新选择")
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current = active_context()
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if not current["ready"] or current["account_id"] != str(account):
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raise ValueError("核对期间企业微信账号已变化，请重新选择")
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return {"ok": True, "reason": "", "account_id": str(account), "account_name": name, "recipient": recipient}
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except (ValueError, OSError, sqlite3.Error) as exc:
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return {"ok": False, "reason": str(exc)[:300], "recipient": None}
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def notification_preview(account="当前企微账号", recipient=None) -> str:
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return ("【客户待审核提醒】\n"
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f"托管企微账号：{account}\n"
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"客户：示例客户（实际提醒包含会话标识）\n"
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"客户咨询：这里显示本轮待处理的客户消息\n"
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"待发送回复：这里显示 AI 生成、尚未发送的回复\n"
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"审核原因：这里显示命中的审核原因\n"
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"请用同一企业微信账号直接回复该客户，结束本次审核。后续自动回复仍逐条风控。\n"
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"——以上仅为内容示例，不会发送消息。")
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