Add td_api::getAvailableVoiceChatAliases.

td/generate/scheme/td_api.tl

@@ -4553,6 +4553,9 @@ sendCallRating call_id:int32 rating:int32 comment:string problems:vector<CallPro
 sendCallDebugInformation call_id:int32 debug_information:string = Ok;
 
 
+//@description Returns list of user and chat, which can be used as aliases to join a voice chat in the chat @chat_id Chat identifier
+getAvailableVoiceChatAliases chat_id:int53 = MessageSenders;
+
 //@description Creates a voice chat (a group call bound to a chat). Available only for basic groups, supergroups and channels; requires can_manage_voice_chats rights @chat_id Chat identifier
 createVoiceChat chat_id:int53 = GroupCallId;
 
@@ -4561,7 +4564,7 @@ getGroupCall group_call_id:int32 = GroupCall;
 
 //@description Joins a group call
 //@group_call_id Group call identifier
-//@participant_alias Identifier of the group call participant, which will be used to join the call
+//@participant_alias Identifier of the group call participant, which will be used to join the call; voice chats only
 //@payload Group join payload; received from tgcalls
 //@source Caller synchronization source identifier; received from tgcalls
 //@is_muted True, if the user's microphone is muted

td/telegram/GroupCallManager.cpp

@@ -31,6 +31,60 @@
 
 namespace td {
 
+class GetGroupCallJoinAsQuery : public Td::ResultHandler {
+  Promise<td_api::object_ptr<td_api::messageSenders>> promise_;
+  DialogId dialog_id_;
+
+ public:
+  explicit GetGroupCallJoinAsQuery(Promise<td_api::object_ptr<td_api::messageSenders>> &&promise)
+      : promise_(std::move(promise)) {
+  }
+
+  void send(DialogId dialog_id) {
+    dialog_id_ = dialog_id;
+
+    auto input_peer = td->messages_manager_->get_input_peer(dialog_id, AccessRights::Read);
+    CHECK(input_peer != nullptr);
+
+    send_query(G()->net_query_creator().create(telegram_api::phone_getGroupCallJoinAs(std::move(input_peer))));
+  }
+
+  void on_result(uint64 id, BufferSlice packet) override {
+    auto result_ptr = fetch_result<telegram_api::phone_getGroupCallJoinAs>(packet);
+    if (result_ptr.is_error()) {
+      return on_error(id, result_ptr.move_as_error());
+    }
+
+    auto ptr = result_ptr.move_as_ok();
+    LOG(INFO) << "Receive result for GetGroupCallJoinAsQuery: " << to_string(ptr);
+
+    td->contacts_manager_->on_get_users(std::move(ptr->users_), "GetGroupCallJoinAsQuery");
+    td->contacts_manager_->on_get_chats(std::move(ptr->chats_), "GetGroupCallJoinAsQuery");
+
+    vector<td_api::object_ptr<td_api::MessageSender>> participant_aliaces;
+    for (auto &peer : ptr->peers_) {
+      DialogId dialog_id(peer);
+      if (!dialog_id.is_valid()) {
+        LOG(ERROR) << "Receive invalid " << dialog_id << " as join as peer for " << dialog_id_;
+        continue;
+      }
+      if (dialog_id.get_type() != DialogType::User) {
+        td->messages_manager_->force_create_dialog(dialog_id, "GetGroupCallJoinAsQuery");
+      }
+
+      participant_aliaces.push_back(td->messages_manager_->get_message_sender_object(dialog_id));
+    }
+
+    promise_.set_value(td_api::make_object<td_api::messageSenders>(static_cast<int32>(participant_aliaces.size()),
+                                                                   std::move(participant_aliaces)));
+  }
+
+  void on_error(uint64 id, Status status) override {
+    td->messages_manager_->on_get_dialog_error(dialog_id_, status, "GetGroupCallJoinAsQuery");
+    promise_.set_error(std::move(status));
+  }
+};
+
 class CreateGroupCallQuery : public Td::ResultHandler {
   Promise<InputGroupCallId> promise_;
   DialogId dialog_id_;
@@ -780,6 +834,21 @@ bool GroupCallManager::can_manage_group_call(InputGroupCallId input_group_call_i
   return can_manage_group_calls(group_call->dialog_id).is_ok();
 }
 
+void GroupCallManager::get_group_call_join_as(DialogId dialog_id,
+                                              Promise<td_api::object_ptr<td_api::messageSenders>> &&promise) {
+  if (!dialog_id.is_valid()) {
+    return promise.set_error(Status::Error(400, "Invalid chat identifier specified"));
+  }
+  if (!td_->messages_manager_->have_dialog_force(dialog_id)) {
+    return promise.set_error(Status::Error(400, "Chat not found"));
+  }
+  if (!td_->messages_manager_->have_input_peer(dialog_id, AccessRights::Read)) {
+    return promise.set_error(Status::Error(400, "Can't access chat"));
+  }
+
+  td_->create_handler<GetGroupCallJoinAsQuery>(std::move(promise))->send(dialog_id);
+}
+
 void GroupCallManager::create_voice_chat(DialogId dialog_id, Promise<GroupCallId> &&promise) {
   if (!dialog_id.is_valid()) {
     return promise.set_error(Status::Error(400, "Invalid chat identifier specified"));

td/telegram/GroupCallManager.h

@@ -45,6 +45,8 @@ class GroupCallManager : public Actor {
 
   GroupCallId get_group_call_id(InputGroupCallId input_group_call_id, DialogId dialog_id);
 
+  void get_group_call_join_as(DialogId dialog_id, Promise<td_api::object_ptr<td_api::messageSenders>> &&promise);
+
   void create_voice_chat(DialogId dialog_id, Promise<GroupCallId> &&promise);
 
   void get_group_call(GroupCallId group_call_id, Promise<td_api::object_ptr<td_api::groupCall>> &&promise);

td/telegram/Td.cpp

@@ -5963,6 +5963,12 @@ void Td::on_request(uint64 id, td_api::sendCallDebugInformation &request) {
                std::move(request.debug_information_), std::move(promise));
 }
 
+void Td::on_request(uint64 id, const td_api::getAvailableVoiceChatAliases &request) {
+  CHECK_IS_USER();
+  CREATE_REQUEST_PROMISE();
+  group_call_manager_->get_group_call_join_as(DialogId(request.chat_id_), std::move(promise));
+}
+
 void Td::on_request(uint64 id, const td_api::createVoiceChat &request) {
   CHECK_IS_USER();
   CREATE_REQUEST_PROMISE();

td/telegram/Td.h

@@ -699,6 +699,8 @@ class Td final : public NetQueryCallback {
 
   void on_request(uint64 id, td_api::sendCallDebugInformation &request);
 
+  void on_request(uint64 id, const td_api::getAvailableVoiceChatAliases &request);
+
   void on_request(uint64 id, const td_api::createVoiceChat &request);
 
   void on_request(uint64 id, const td_api::getGroupCall &request);

td/telegram/cli.cpp

@@ -2665,6 +2665,8 @@ class CliClient final : public Actor {
           as_call_id(call_id), rating, "Wow, such good call! (TDLib test)", std::move(problems)));
     } else if (op == "scdi" || op == "SendCallDebugInformation") {
       send_request(td_api::make_object<td_api::sendCallDebugInformation>(as_call_id(args), "{}"));
+    } else if (op == "gavca") {
+      send_request(td_api::make_object<td_api::getAvailableVoiceChatAliases>(as_chat_id(args)));
     } else if (op == "cvc") {
       send_request(td_api::make_object<td_api::createVoiceChat>(as_chat_id(args)));
     } else if (op == "ggc") {