update

usercheck.py

@@ -0,0 +1,51 @@
+# (C) 2021 lifegpc
+# This file is part of rssbot.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+from enum import Enum, unique
+
+
+@unique
+class UserPermissionsInChatCheckResult(Enum):
+    OK = 0
+    GetChatInfoError = 1
+    PrivateChat = 2
+    GetChatAdministratorsError = 3
+    NoPermissions = 4
+
+
+def checkUserPermissionsInChat(m, chatId: int, userId: int) -> UserPermissionsInChatCheckResult:
+    from rssbot import main
+    _main: main = m
+    re = _main._request('getChat', 'post', {'chat_id': chatId})
+    if re is None or 'ok' not in re or not re['ok']:
+        return UserPermissionsInChatCheckResult.GetChatInfoError
+    chatInfo = re['result']
+    if chatInfo['type'] == 'private':
+        return UserPermissionsInChatCheckResult.PrivateChat
+    re = _main._request('getChatAdministrators', 'post', {'chat_id': chatId})
+    if re is None or 'ok' not in re or not re['ok']:
+        return UserPermissionsInChatCheckResult.GetChatAdministratorsError
+    chatAdministrators = re['result']
+    for chatMember in chatAdministrators:
+        if chatMember['user']['id'] != userId:
+            continue
+        if chatMember['status'] not in ['creator', 'administrator']:
+            continue
+        if chatInfo['type'] == 'channel' and chatMember['status'] == 'administrator' and ('can_post_messages' not in chatMember or not chatMember['can_post_messages']):
+            continue
+        if chatInfo['type'] == 'channel' and chatMember['status'] == 'administrator' and ('can_edit_messages' not in chatMember or not chatMember['can_edit_messages']):
+            continue
+        return UserPermissionsInChatCheckResult.OK
+    return UserPermissionsInChatCheckResult.NoPermissions