Init bio in fake updateGroupCallParticipant when joining call.

td/telegram/ContactsManager.cpp

@@ -4769,6 +4769,43 @@ RestrictedRights ContactsManager::get_secret_chat_default_permissions(SecretChat
   return RestrictedRights(true, true, true, true, true, true, true, true, false, false, false);
 }
 
+string ContactsManager::get_dialog_about(DialogId dialog_id) {
+  switch (dialog_id.get_type()) {
+    case DialogType::User: {
+      auto user_full = get_user_full_force(dialog_id.get_user_id());
+      if (user_full != nullptr) {
+        return user_full->about;
+      }
+      break;
+    }
+    case DialogType::Chat: {
+      auto chat_full = get_chat_full_force(dialog_id.get_chat_id(), "get_dialog_about");
+      if (chat_full != nullptr) {
+        return chat_full->description;
+      }
+      break;
+    }
+    case DialogType::Channel: {
+      auto channel_full = get_channel_full_force(dialog_id.get_channel_id(), "get_dialog_about");
+      if (channel_full != nullptr) {
+        return channel_full->description;
+      }
+      break;
+    }
+    case DialogType::SecretChat: {
+      auto user_full = get_user_full_force(get_secret_chat_user_id(dialog_id.get_secret_chat_id()));
+      if (user_full != nullptr) {
+        return user_full->about;
+      }
+      break;
+    }
+    case DialogType::None:
+    default:
+      UNREACHABLE();
+  }
+  return string();
+}
+
 int32 ContactsManager::get_secret_chat_date(SecretChatId secret_chat_id) const {
   auto c = get_secret_chat(secret_chat_id);
   if (c == nullptr) {

td/telegram/ContactsManager.h

@@ -128,6 +128,8 @@ class ContactsManager : public Actor {
   RestrictedRights get_channel_default_permissions(ChannelId channel_id) const;
   RestrictedRights get_secret_chat_default_permissions(SecretChatId secret_chat_id) const;
 
+  string get_dialog_about(DialogId dialog_id);
+
   bool is_update_about_username_change_received(UserId user_id) const;
 
   void for_each_secret_chat_with_user(UserId user_id, std::function<void(SecretChatId)> f);

td/telegram/GroupCallManager.cpp

@@ -1564,6 +1564,9 @@ void GroupCallManager::join_group_call(GroupCallId group_call_id, DialogId as_di
     if (!td_->messages_manager_->have_input_peer(as_dialog_id, AccessRights::Read)) {
       return promise.set_error(Status::Error(400, "Can't access the chat"));
     }
+    if (as_dialog_id.get_type() == DialogType::SecretChat) {
+      return promise.set_error(Status::Error(400, "Can't join voice chat as a secret chat"));
+    }
   }
 
   if (audio_source == 0) {
@@ -1640,6 +1643,7 @@ void GroupCallManager::join_group_call(GroupCallId group_call_id, DialogId as_di
       td_->messages_manager_->force_create_dialog(my_dialog_id, "join_group_call");
       group_call_participant.dialog_id = my_dialog_id;
     }
+    group_call_participant.about = td_->contacts_manager_->get_dialog_about(group_call_participant.dialog_id);
     group_call_participant.audio_source = audio_source;
     group_call_participant.joined_date = G()->unix_time();
     // if can_self_unmute has never been inited from self-participant,