Add approve/declineCjatJoinRequest.

td/generate/scheme/td_api.tl

@@ -4942,6 +4942,12 @@ joinChatByInviteLink invite_link:string = Chat;
 //@limit The maximum number of chat join requests to return
 getChatJoinRequests chat_id:int53 invite_link:string query:string offset_request:chatJoinRequest limit:int32 = ChatJoinRequests;
 
+//@description Approves pending join request in a chat @chat_id Chat identifier @user_id Identifier of the user, which request will be approved
+approveChatJoinRequest chat_id:int53 user_id:int53 = Ok;
+
+//@description Declines pending join request in a chat @chat_id Chat identifier @user_id Identifier of the user, which request will be declined
+declineChatJoinRequest chat_id:int53 user_id:int53 = Ok;
+
 
 //@description Creates a new call @user_id Identifier of the user to be called @protocol Description of the call protocols supported by the application @is_video True, if a video call needs to be created
 createCall user_id:int53 protocol:callProtocol is_video:Bool = CallId;

td/telegram/ContactsManager.cpp

@@ -2023,6 +2023,51 @@ class GetChatJoinRequestsQuery final : public Td::ResultHandler {
   }
 };
 
+class HideChatJoinRequestQuery final : public Td::ResultHandler {
+  Promise<Unit> promise_;
+  DialogId dialog_id_;
+
+ public:
+  explicit HideChatJoinRequestQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
+  }
+
+  void send(DialogId dialog_id, UserId user_id, bool is_approved) {
+    dialog_id_ = dialog_id;
+    auto input_peer = td->messages_manager_->get_input_peer(dialog_id, AccessRights::Write);
+    if (input_peer == nullptr) {
+      return on_error(0, Status::Error(400, "Can't access the chat"));
+    }
+
+    auto input_user = td->contacts_manager_->get_input_user(user_id);
+    if (input_user == nullptr) {
+      return on_error(0, Status::Error(400, "Can't find user"));
+    }
+
+    int32 flags = 0;
+    if (is_approved) {
+      flags |= telegram_api::messages_hideChatJoinRequest::APPROVED_MASK;
+    }
+    send_query(G()->net_query_creator().create(telegram_api::messages_hideChatJoinRequest(
+        flags, false /*ignored*/, std::move(input_peer), std::move(input_user))));
+  }
+
+  void on_result(uint64 id, BufferSlice packet) final {
+    auto result_ptr = fetch_result<telegram_api::messages_hideChatJoinRequest>(packet);
+    if (result_ptr.is_error()) {
+      return on_error(id, result_ptr.move_as_error());
+    }
+
+    auto result = result_ptr.move_as_ok();
+    LOG(INFO) << "Receive result for HideChatJoinRequestQuery: " << to_string(result);
+    td->updates_manager_->on_get_updates(std::move(result), std::move(promise_));
+  }
+
+  void on_error(uint64 id, Status status) final {
+    td->messages_manager_->on_get_dialog_error(dialog_id_, status, "HideChatJoinRequestQuery");
+    promise_.set_error(std::move(status));
+  }
+};
+
 class RevokeChatInviteLinkQuery final : public Td::ResultHandler {
   Promise<td_api::object_ptr<td_api::chatInviteLinks>> promise_;
   DialogId dialog_id_;
@@ -7503,6 +7548,12 @@ void ContactsManager::get_dialog_join_requests(DialogId dialog_id, const string
       ->send(dialog_id, invite_link, query, offset_date, offset_user_id, limit);
 }
 
+void ContactsManager::process_dialog_join_requests(DialogId dialog_id, UserId user_id, bool is_approved,
+                                                   Promise<Unit> &&promise) {
+  TRY_STATUS_PROMISE(promise, can_manage_dialog_invite_links(dialog_id));
+  td_->create_handler<HideChatJoinRequestQuery>(std::move(promise))->send(dialog_id, user_id, is_approved);
+}
+
 void ContactsManager::revoke_dialog_invite_link(DialogId dialog_id, const string &invite_link,
                                                 Promise<td_api::object_ptr<td_api::chatInviteLinks>> &&promise) {
   TRY_STATUS_PROMISE(promise, can_manage_dialog_invite_links(dialog_id));

td/telegram/ContactsManager.h

@@ -408,6 +408,8 @@ class ContactsManager final : public Actor {
                                 td_api::object_ptr<td_api::chatJoinRequest> offset_request, int32 limit,
                                 Promise<td_api::object_ptr<td_api::chatJoinRequests>> &&promise);
 
+  void process_dialog_join_requests(DialogId dialog_id, UserId user_id, bool is_approved, Promise<Unit> &&promise);
+
   void revoke_dialog_invite_link(DialogId dialog_id, const string &link,
                                  Promise<td_api::object_ptr<td_api::chatInviteLinks>> &&promise);
 

td/telegram/Td.cpp

@@ -6341,6 +6341,18 @@ void Td::on_request(uint64 id, td_api::getChatJoinRequests &request) {
                                               std::move(request.offset_request_), request.limit_, std::move(promise));
 }
 
+void Td::on_request(uint64 id, const td_api::approveChatJoinRequest &request) {
+  CREATE_OK_REQUEST_PROMISE();
+  contacts_manager_->process_dialog_join_requests(DialogId(request.chat_id_), UserId(request.user_id_), true,
+                                                  std::move(promise));
+}
+
+void Td::on_request(uint64 id, const td_api::declineChatJoinRequest &request) {
+  CREATE_OK_REQUEST_PROMISE();
+  contacts_manager_->process_dialog_join_requests(DialogId(request.chat_id_), UserId(request.user_id_), false,
+                                                  std::move(promise));
+}
+
 void Td::on_request(uint64 id, td_api::revokeChatInviteLink &request) {
   CLEAN_INPUT_STRING(request.invite_link_);
   CREATE_REQUEST_PROMISE();

td/telegram/Td.h

@@ -872,6 +872,10 @@ class Td final : public Actor {
 
   void on_request(uint64 id, td_api::getChatJoinRequests &request);
 
+  void on_request(uint64 id, const td_api::approveChatJoinRequest &request);
+
+  void on_request(uint64 id, const td_api::declineChatJoinRequest &request);
+
   void on_request(uint64 id, td_api::revokeChatInviteLink &request);
 
   void on_request(uint64 id, td_api::deleteRevokedChatInviteLink &request);

td/telegram/cli.cpp

@@ -2998,6 +2998,16 @@ class CliClient final : public Actor {
           as_chat_id(chat_id), invite_link, query,
           td_api::make_object<td_api::chatJoinRequest>(as_user_id(offset_user_id), offset_date, string()),
           as_limit(limit)));
+    } else if (op == "acjr") {
+      string chat_id;
+      string user_id;
+      get_args(args, chat_id, user_id);
+      send_request(td_api::make_object<td_api::approveChatJoinRequest>(as_chat_id(chat_id), as_user_id(user_id)));
+    } else if (op == "dcjr") {
+      string chat_id;
+      string user_id;
+      get_args(args, chat_id, user_id);
+      send_request(td_api::make_object<td_api::declineChatJoinRequest>(as_chat_id(chat_id), as_user_id(user_id)));
     } else if (op == "drcil") {
       string chat_id;
       string invite_link;