Update API scheme to layer 202.

Telegram/Resources/langs/lang.strings

@@ -2220,6 +2220,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_action_message_price_paid#other" = "Messages now cost {count} Stars each in this group.";
 "lng_you_paid_stars#one" = "You paid {count} Star.";
 "lng_you_paid_stars#other" = "You paid {count} Stars.";
+"lng_action_confcall_invitation" = "Call invitation...";
+"lng_action_confcall_missed" = "Missed conference call";
+"lng_action_confcall_ongoing" = "Ongoing conference call";
+"lng_action_confcall_finished" = "Conference call";
 
 "lng_you_joined_group" = "You joined this group";
 
@@ -4904,6 +4908,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_group_call_rtmp_viewers#one" = "{count} viewer";
 "lng_group_call_rtmp_viewers#other" = "{count} viewers";
 
+"lng_confcall_join_title" = "Group Call";
+"lng_confcall_join_text" = "You are invited to join a Telegram Call.";
+"lng_confcall_join_button" = "Join Group Call";
+
 "lng_no_mic_permission" = "Telegram needs microphone access so that you can make calls and record voice messages.";
 
 "lng_player_message_today" = "today at {time}";

Telegram/SourceFiles/calls/calls_instance.cpp

@@ -632,6 +632,8 @@ void Instance::handleGroupCallUpdate(
 	}, [](const MTPDupdateGroupCallParticipants &data) {
 		return data.vcall().match([&](const MTPDinputGroupCall &data) {
 			return data.vid().v;
+		}, [](const MTPDinputGroupCallSlug &) -> CallId {
+			Unexpected("slug in Instance::handleGroupCallUpdate");
 		});
 	}, [](const auto &) -> CallId {
 		Unexpected("Type in Instance::handleGroupCallUpdate.");

Telegram/SourceFiles/calls/group/calls_group_call.cpp

@@ -1091,6 +1091,8 @@ void GroupCall::join(const MTPInputGroupCall &inputCall) {
 	inputCall.match([&](const MTPDinputGroupCall &data) {
 		_id = data.vid().v;
 		_accessHash = data.vaccess_hash().v;
+	}, [&](const MTPDinputGroupCallSlug &) {
+		Unexpected("inputGroupCallSlug in GroupCall::join.");
 	});
 	setState(_scheduleDate ? State::Waiting : State::Joining);
 
@@ -1377,7 +1379,8 @@ void GroupCall::rejoin(not_null<PeerData*> as) {
 				inputCall(),
 				joinAs()->input,
 				MTP_string(_joinHash),
-				MTPlong(), // key_fingerprint
+				MTPint256(), // public_key
+				MTPint(), // invite_msg_id
 				MTP_dataJSON(MTP_bytes(json))
 			)).done([=](
 					const MTPUpdates &updates,
@@ -1607,7 +1610,8 @@ void GroupCall::applyMeInCallLocally() {
 					MTPstring(), // Don't update about text in local updates.
 					MTP_long(raisedHandRating),
 					MTPGroupCallParticipantVideo(),
-					MTPGroupCallParticipantVideo())),
+					MTPGroupCallParticipantVideo(),
+					AssertIsDebug() MTPint256())), // public_key
 			MTP_int(0)).c_updateGroupCallParticipants());
 }
 
@@ -1654,7 +1658,8 @@ void GroupCall::applyParticipantLocally(
 					MTPstring(), // Don't update about text in local updates.
 					MTP_long(participant->raisedHandRating),
 					MTPGroupCallParticipantVideo(),
-					MTPGroupCallParticipantVideo())),
+					MTPGroupCallParticipantVideo(),
+					AssertIsDebug() MTPint256())), // public_key
 			MTP_int(0)).c_updateGroupCallParticipants());
 }
 
@@ -1966,8 +1971,11 @@ void GroupCall::handleUpdate(const MTPDupdateGroupCall &data) {
 }
 
 void GroupCall::handleUpdate(const MTPDupdateGroupCallParticipants &data) {
-	const auto callId = data.vcall().match([](const auto &data) {
+	const auto callId = data.vcall().match([](
+			const MTPDinputGroupCall &data) {
 		return data.vid().v;
+	}, [](const MTPDinputGroupCallSlug &) -> CallId {
+		Unexpected("inputGroupCallSlug in GroupCall::handleUpdate.");
 	});
 	if (_id != callId) {
 		return;

Telegram/SourceFiles/calls/group/calls_group_common.cpp

@@ -50,4 +50,23 @@ object_ptr<Ui::GenericBox> ScreenSharingPrivacyRequestBox() {
 #endif // Q_OS_MAC
 }
 
+void ConferenceCallJoinConfirm(
+		not_null<Ui::GenericBox*> box,
+		std::shared_ptr<Data::GroupCall> call) {
+	box->setTitle(tr::lng_confcall_join_title());
+
+	box->addRow(
+		object_ptr<Ui::FlatLabel>(
+			box,
+			tr::lng_confcall_join_text(),
+			st::boxLabel));
+
+	box->addButton(tr::lng_confcall_join_button(), [=] {
+
+	});
+	box->addButton(tr::lng_cancel(), [=] {
+		box->closeBox();
+	});
+}
+
 } // namespace Calls::Group

Telegram/SourceFiles/calls/group/calls_group_common.h

@@ -11,6 +11,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 class UserData;
 
+namespace Data {
+class GroupCall;
+} // namespace Data
+
 namespace Ui {
 class GenericBox;
 } // namespace Ui
@@ -93,4 +97,8 @@ using StickedTooltips = base::flags<StickedTooltip>;
 
 [[nodiscard]] object_ptr<Ui::GenericBox> ScreenSharingPrivacyRequestBox();
 
+void ConferenceCallJoinConfirm(
+	not_null<Ui::GenericBox*> box,
+	std::shared_ptr<Data::GroupCall> call);
+
 } // namespace Calls::Group

Telegram/SourceFiles/core/local_url_handlers.cpp

@@ -1448,6 +1448,21 @@ bool ResolveUniqueGift(
 	return true;
 }
 
+bool ResolveConferenceCall(
+		Window::SessionController *controller,
+		const Match &match,
+		const QVariant &context) {
+	if (!controller) {
+		return false;
+	}
+	const auto slug = match->captured(1);
+	if (slug.isEmpty()) {
+		return false;
+	}
+	controller->window().activate();
+	controller->resolveConferenceCall(match->captured(1));
+	return true;
+}
 } // namespace
 
 const std::vector<LocalUrlHandler> &LocalUrlHandlers() {
@@ -1544,6 +1559,10 @@ const std::vector<LocalUrlHandler> &LocalUrlHandlers() {
 			u"^nft/?\\?slug=([a-zA-Z0-9\\.\\_\\-]+)(&|$)"_q,
 			ResolveUniqueGift
 		},
+		{
+			u"^call/?\\?slug=([a-zA-Z0-9\\.\\_\\-]+)(&|$)"_q,
+			ResolveConferenceCall
+		},
 		{
 			u"^([^\\?]+)(\\?|#|$)"_q,
 			HandleUnknown
@@ -1704,6 +1723,9 @@ QString TryConvertUrlToLocal(QString url) {
 		} else if (const auto nftMatch = regex_match(u"^nft/([a-zA-Z0-9\\.\\_\\-]+)(\\?|$)"_q, query, matchOptions)) {
 			const auto slug = nftMatch->captured(1);
 			return u"tg://nft?slug="_q + slug;
+		} else if (const auto callMatch = regex_match(u"^call/([a-zA-Z0-9\\.\\_\\-]+)(\\?|$)"_q, query, matchOptions)) {
+			const auto slug = callMatch->captured(1);
+			return u"tg://call?slug="_q + slug;
 		} else if (const auto privateMatch = regex_match(u"^"
 			"c/(\\-?\\d+)"
 			"("

Telegram/SourceFiles/data/data_channel.cpp

@@ -1005,6 +1005,8 @@ void ChannelData::setGroupCall(
 		owner().registerGroupCall(_call.get());
 		session().changes().peerUpdated(this, UpdateFlag::GroupCall);
 		addFlags(Flag::CallActive);
+	}, [&](const MTPDinputGroupCallSlug &) {
+		clearGroupCall();
 	});
 }
 

Telegram/SourceFiles/data/data_chat.cpp

@@ -238,6 +238,8 @@ void ChatData::setGroupCall(
 		owner().registerGroupCall(_call.get());
 		session().changes().peerUpdated(this, UpdateFlag::GroupCall);
 		addFlags(Flag::CallActive);
+	}, [&](const MTPDinputGroupCallSlug &) {
+		clearGroupCall();
 	});
 }
 

Telegram/SourceFiles/data/data_group_call.cpp

@@ -60,7 +60,7 @@ bool GroupCallParticipant::screenPaused() const {
 GroupCall::GroupCall(
 	not_null<PeerData*> peer,
 	CallId id,
-	CallId accessHash,
+	uint64 accessHash,
 	TimeId scheduleDate,
 	bool rtmp)
 : _id(id)

Telegram/SourceFiles/data/data_group_call.h

@@ -56,7 +56,7 @@ public:
 	GroupCall(
 		not_null<PeerData*> peer,
 		CallId id,
-		CallId accessHash,
+		uint64 accessHash,
 		TimeId scheduleDate,
 		bool rtmp);
 	~GroupCall();
@@ -201,7 +201,7 @@ private:
 	[[nodiscard]] Participant *findParticipant(not_null<PeerData*> peer);
 
 	const CallId _id = 0;
-	const CallId _accessHash = 0;
+	const uint64 _accessHash = 0;
 
 	not_null<PeerData*> _peer;
 	int _version = 0;

Telegram/SourceFiles/export/data/export_data_types.cpp

@@ -1713,6 +1713,12 @@ ServiceAction ParseServiceAction(
 		result.content = ActionPaidMessagesPrice{
 			.stars = int(data.vstars().v),
 		};
+	}, [&](const MTPDmessageActionConferenceCall &data) {
+		result.content = ActionConferenceCall{
+			.duration = data.vduration().value_or_empty(),
+			.active = data.is_active(),
+			.missed = data.is_missed(),
+		};
 	}, [](const MTPDmessageActionEmpty &data) {});
 	return result;
 }

Telegram/SourceFiles/export/data/export_data_types.h

@@ -671,6 +671,12 @@ struct ActionPaidMessagesPrice {
 	int stars = 0;
 };
 
+struct ActionConferenceCall {
+	int duration = 0;
+	bool active = false;
+	bool missed = false;
+};
+
 struct ServiceAction {
 	std::variant<
 		v::null_t,
@@ -718,7 +724,8 @@ struct ServiceAction {
 		ActionPrizeStars,
 		ActionStarGift,
 		ActionPaidMessagesRefunded,
-		ActionPaidMessagesPrice> content;
+		ActionPaidMessagesPrice,
+		ActionConferenceCall> content;
 };
 
 ServiceAction ParseServiceAction(

Telegram/SourceFiles/export/output/export_output_html.cpp

@@ -1387,6 +1387,16 @@ auto HtmlWriter::Wrap::pushMessage(
 			+ QString::number(data.stars).toUtf8()
 			+ " Telegram Stars.";
 		return result;
+	}, [&](const ActionConferenceCall &data) {
+		return data.missed
+			? "Missed conference call"
+			: data.active
+			? "Ongoing conference call"
+			: data.duration
+			? "Conference call ("
+				+ NumberToString(data.duration)
+				+ " seconds)"
+			: "Declined conference call";
 	}, [](v::null_t) { return QByteArray(); });
 
 	if (!serviceText.isEmpty()) {

Telegram/SourceFiles/export/output/export_output_json.cpp

@@ -672,6 +672,12 @@ QByteArray SerializeMessage(
 		pushActor();
 		pushAction("paid_messages_price_change");
 		push("price_stars", data.stars);
+	}, [&](const ActionConferenceCall &data) {
+		pushActor();
+		pushAction("conference_call");
+		push("duration_seconds", data.duration);
+		push("is_missed", data.missed);
+		push("is_active", data.active);
 	}, [](v::null_t) {});
 
 	if (v::is_null(message.action.content)) {

Telegram/SourceFiles/history/history_item.cpp

@@ -5624,6 +5624,19 @@ void HistoryItem::setServiceMessageByAction(const MTPmessageAction &action) {
 		return result;
 	};
 
+	auto prepareConferenceCall = [&](const MTPDmessageActionConferenceCall &action) {
+		auto result = PreparedServiceText();
+		const auto duration = action.vduration().value_or_empty();
+		result.text.text = action.is_missed()
+			? tr::lng_action_confcall_missed(tr::now)
+			: action.is_active()
+			? tr::lng_action_confcall_ongoing(tr::now)
+			: duration
+			? tr::lng_action_confcall_finished(tr::now)
+			: tr::lng_action_confcall_invitation(tr::now);
+		return result;
+	};
+
 	setServiceText(action.match(
 		prepareChatAddUserText,
 		prepareChatJoinedByLink,
@@ -5673,6 +5686,7 @@ void HistoryItem::setServiceMessageByAction(const MTPmessageAction &action) {
 		prepareStarGiftUnique,
 		preparePaidMessagesRefunded,
 		preparePaidMessagesPrice,
+		prepareConferenceCall,
 		PrepareEmptyText<MTPDmessageActionRequestedPeerSentMe>,
 		PrepareErrorText<MTPDmessageActionEmpty>));
 

Telegram/SourceFiles/history/history_item_helpers.cpp

@@ -915,6 +915,8 @@ MediaCheckResult CheckMessageMedia(const MTPMessageMedia &media) {
 [[nodiscard]] CallId CallIdFromInput(const MTPInputGroupCall &data) {
 	return data.match([&](const MTPDinputGroupCall &data) {
 		return data.vid().v;
+	}, [](const MTPDinputGroupCallSlug &) -> CallId {
+		Unexpected("inputGroupCallSlug in CallIdFromInput.");
 	});
 }
 

Telegram/SourceFiles/mtproto/scheme/api.tl

@@ -187,6 +187,7 @@ messageActionStarGift#4717e8a4 flags:# name_hidden:flags.0?true saved:flags.2?tr
 messageActionStarGiftUnique#acdfcb81 flags:# upgrade:flags.0?true transferred:flags.1?true saved:flags.2?true refunded:flags.5?true gift:StarGift can_export_at:flags.3?int transfer_stars:flags.4?long from_id:flags.6?Peer peer:flags.7?Peer saved_id:flags.7?long = MessageAction;
 messageActionPaidMessagesRefunded#ac1f1fcd count:int stars:long = MessageAction;
 messageActionPaidMessagesPrice#bcd71419 stars:long = MessageAction;
+messageActionConferenceCall#ff397dea flags:# missed:flags.0?true active:flags.1?true call_id:long slug:string duration:flags.2?int other_participants:flags.3?Vector<Peer> = MessageAction;
 
 dialog#d58a08c6 flags:# pinned:flags.2?true unread_mark:flags.3?true view_forum_as_messages:flags.6?true peer:Peer top_message:int read_inbox_max_id:int read_outbox_max_id:int unread_count:int unread_mentions_count:int unread_reactions_count:int notify_settings:PeerNotifySettings pts:flags.0?int draft:flags.1?DraftMessage folder_id:flags.4?int ttl_period:flags.5?int = Dialog;
 dialogFolder#71bd134c flags:# pinned:flags.2?true folder:Folder peer:Peer top_message:int unread_muted_peers_count:int unread_unmuted_peers_count:int unread_muted_messages_count:int unread_unmuted_messages_count:int = Dialog;
@@ -431,6 +432,7 @@ updateStarsRevenueStatus#a584b019 peer:Peer status:StarsRevenueStatus = Update;
 updateBotPurchasedPaidMedia#283bd312 user_id:long payload:string qts:int = Update;
 updatePaidReactionPrivacy#8b725fce private:PaidReactionPrivacy = Update;
 updateSentPhoneCode#504aa18f sent_code:auth.SentCode = Update;
+updateGroupCallChainBlocks#a477288f call:InputGroupCall sub_chain_id:int blocks:Vector<bytes> next_offset:int = Update;
 
 updates.state#a56c2a3e pts:int qts:int date:int seq:int unread_count:int = updates.State;
 
@@ -1340,11 +1342,12 @@ peerBlocked#e8fd8014 peer_id:Peer date:int = PeerBlocked;
 stats.messageStats#7fe91c14 views_graph:StatsGraph reactions_by_emotion_graph:StatsGraph = stats.MessageStats;
 
 groupCallDiscarded#7780bcb4 id:long access_hash:long duration:int = GroupCall;
-groupCall#cdf8d3e3 flags:# join_muted:flags.1?true can_change_join_muted:flags.2?true join_date_asc:flags.6?true schedule_start_subscribed:flags.8?true can_start_video:flags.9?true record_video_active:flags.11?true rtmp_stream:flags.12?true listeners_hidden:flags.13?true id:long access_hash:long participants_count:int title:flags.3?string stream_dc_id:flags.4?int record_start_date:flags.5?int schedule_date:flags.7?int unmuted_video_count:flags.10?int unmuted_video_limit:int version:int conference_from_call:flags.14?long = GroupCall;
+groupCall#d597650c flags:# join_muted:flags.1?true can_change_join_muted:flags.2?true join_date_asc:flags.6?true schedule_start_subscribed:flags.8?true can_start_video:flags.9?true record_video_active:flags.11?true rtmp_stream:flags.12?true listeners_hidden:flags.13?true conference:flags.14?true id:long access_hash:long participants_count:int title:flags.3?string stream_dc_id:flags.4?int record_start_date:flags.5?int schedule_date:flags.7?int unmuted_video_count:flags.10?int unmuted_video_limit:int version:int = GroupCall;
 
 inputGroupCall#d8aa840f id:long access_hash:long = InputGroupCall;
+inputGroupCallSlug#fe06823f slug:string = InputGroupCall;
 
-groupCallParticipant#eba636fe flags:# muted:flags.0?true left:flags.1?true can_self_unmute:flags.2?true just_joined:flags.4?true versioned:flags.5?true min:flags.8?true muted_by_you:flags.9?true volume_by_admin:flags.10?true self:flags.12?true video_joined:flags.15?true peer:Peer date:int active_date:flags.3?int source:int volume:flags.7?int about:flags.11?string raise_hand_rating:flags.13?long video:flags.6?GroupCallParticipantVideo presentation:flags.14?GroupCallParticipantVideo = GroupCallParticipant;
+groupCallParticipant#23860077 flags:# muted:flags.0?true left:flags.1?true can_self_unmute:flags.2?true just_joined:flags.4?true versioned:flags.5?true min:flags.8?true muted_by_you:flags.9?true volume_by_admin:flags.10?true self:flags.12?true video_joined:flags.15?true peer:Peer date:int active_date:flags.3?int source:int volume:flags.7?int about:flags.11?string raise_hand_rating:flags.13?long video:flags.6?GroupCallParticipantVideo presentation:flags.14?GroupCallParticipantVideo public_key:flags.16?int256 = GroupCallParticipant;
 
 phone.groupCall#9e727aad call:GroupCall participants:Vector<GroupCallParticipant> participants_next_offset:string chats:Vector<Chat> users:Vector<User> = phone.GroupCall;
 
@@ -2582,7 +2585,7 @@ phone.setCallRating#59ead627 flags:# user_initiative:flags.0?true peer:InputPhon
 phone.saveCallDebug#277add7e peer:InputPhoneCall debug:DataJSON = Bool;
 phone.sendSignalingData#ff7a9383 peer:InputPhoneCall data:bytes = Bool;
 phone.createGroupCall#48cdc6d8 flags:# rtmp_stream:flags.2?true peer:InputPeer random_id:int title:flags.0?string schedule_date:flags.1?int = Updates;
-phone.joinGroupCall#d61e1df3 flags:# muted:flags.0?true video_stopped:flags.2?true call:InputGroupCall join_as:InputPeer invite_hash:flags.1?string key_fingerprint:flags.3?long params:DataJSON = Updates;
+phone.joinGroupCall#ffae43f4 flags:# muted:flags.0?true video_stopped:flags.2?true call:InputGroupCall join_as:InputPeer invite_hash:flags.1?string public_key:flags.3?int256 invite_msg_id:flags.4?int params:DataJSON = Updates;
 phone.leaveGroupCall#500377f9 call:InputGroupCall source:int = Updates;
 phone.inviteToGroupCall#7b393160 call:InputGroupCall users:Vector<InputUser> = Updates;
 phone.discardGroupCall#7a777135 call:InputGroupCall = Updates;
@@ -2603,7 +2606,13 @@ phone.leaveGroupCallPresentation#1c50d144 call:InputGroupCall = Updates;
 phone.getGroupCallStreamChannels#1ab21940 call:InputGroupCall = phone.GroupCallStreamChannels;
 phone.getGroupCallStreamRtmpUrl#deb3abbf peer:InputPeer revoke:Bool = phone.GroupCallStreamRtmpUrl;
 phone.saveCallLog#41248786 peer:InputPhoneCall file:InputFile = Bool;
-phone.createConferenceCall#dfc909ab peer:InputPhoneCall key_fingerprint:long = phone.PhoneCall;
+phone.createConferenceCall#dae2632f public_key:int256 zero_block:bytes = phone.GroupCall;
+phone.addConferenceCallParticipant#3cb2a504 call:InputGroupCall peer:InputPeer block:bytes = Updates;
+phone.deleteConferenceCallParticipant#7b8cc2a3 call:InputGroupCall peer:InputPeer block:bytes = Updates;
+phone.sendConferenceCallBroadcast#c6701900 call:InputGroupCall block:bytes = Updates;
+phone.inviteConferenceCallParticipant#3e9cf7ee call:InputGroupCall user_id:InputUser = Updates;
+phone.declineConferenceCallInvite#3c479971 msg_id:int = Updates;
+phone.getGroupCallChainBlocks#ee9f88a6 call:InputGroupCall sub_chain_id:int offset:int limit:int = Updates;
 
 langpack.getLangPack#f2f2330a lang_pack:string lang_code:string = LangPackDifference;
 langpack.getStrings#efea3803 lang_pack:string lang_code:string keys:Vector<string> = Vector<LangPackString>;
@@ -2679,4 +2688,4 @@ smsjobs.finishJob#4f1ebf24 flags:# job_id:string error:flags.0?string = Bool;
 
 fragment.getCollectibleInfo#be1e85ba collectible:InputCollectible = fragment.CollectibleInfo;
 
-// LAYER 201
+// LAYER 202

Telegram/SourceFiles/ui/image/image_location.cpp

@@ -172,6 +172,8 @@ StorageFileLocation::StorageFileLocation(
 		data.vcall().match([&](const MTPDinputGroupCall &data) {
 			_id = data.vid().v;
 			_accessHash = data.vaccess_hash().v;
+		}, [](const auto &data) {
+			Unexpected("inputGroupCallSlug in inputGroupCallStream.");
 		});
 		_volumeId = data.vtime_ms().v;
 		_localId = data.vscale().v;

Telegram/SourceFiles/window/window_session_controller.cpp

@@ -72,6 +72,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/toast/toast.h"
 #include "calls/calls_instance.h" // Core::App().calls().inCall().
 #include "calls/group/calls_group_call.h"
+#include "calls/group/calls_group_common.h"
 #include "ui/boxes/calendar_box.h"
 #include "ui/boxes/collectible_info_box.h"
 #include "ui/boxes/confirm_box.h"
@@ -816,10 +817,9 @@ void SessionNavigation::resolveCollectible(
 		Fn<void(QString)> fail) {
 	if (_collectibleEntity == entity) {
 		return;
-	} else {
-		_api.request(base::take(_collectibleRequestId)).cancel();
 	}
 	_collectibleEntity = entity;
+	_api.request(base::take(_collectibleRequestId)).cancel();
 	_collectibleRequestId = _api.request(MTPfragment_GetCollectibleInfo(
 		((Ui::DetectCollectibleType(entity) == Ui::CollectibleType::Phone)
 			? MTP_inputCollectiblePhone(MTP_string(entity))
@@ -840,6 +840,39 @@ void SessionNavigation::resolveCollectible(
 	}).send();
 }
 
+void SessionNavigation::resolveConferenceCall(const QString &slug) {
+	if (_conferenceCallSlug == slug) {
+		return;
+	}
+	_api.request(base::take(_conferenceCallRequestId)).cancel();
+	_conferenceCallSlug = slug;
+
+	const auto limit = 5;
+	_conferenceCallRequestId = _api.request(MTPphone_GetGroupCall(
+		MTP_inputGroupCallSlug(MTP_string(slug)),
+		MTP_int(limit)
+	)).done([=](const MTPphone_GroupCall &result) {
+		_conferenceCallRequestId = 0;
+		_conferenceCallSlug = QString();
+
+		result.data().vcall().match([&](const auto &data) {
+			const auto call = std::make_shared<Data::GroupCall>(
+				session().user(),
+				data.vid().v,
+				data.vaccess_hash().v,
+				TimeId(), // scheduleDate
+				false); // rtmp
+			call->processFullCall(result);
+			uiShow()->show(
+				Box(Calls::Group::ConferenceCallJoinConfirm, call));
+		});
+	}).fail([=] {
+		_conferenceCallRequestId = 0;
+		_conferenceCallSlug = QString();
+		showToast(tr::lng_group_invite_bad_link(tr::now));
+	}).send();
+}
+
 void SessionNavigation::applyBoost(
 		not_null<ChannelData*> channel,
 		Fn<void(Ui::BoostCounters)> done) {

Telegram/SourceFiles/window/window_session_controller.h

@@ -264,6 +264,7 @@ public:
 		PeerId ownerId,
 		const QString &entity,
 		Fn<void(QString)> fail = nullptr);
+	void resolveConferenceCall(const QString &slug);
 
 	base::weak_ptr<Ui::Toast::Instance> showToast(
 		Ui::Toast::Config &&config);
@@ -329,6 +330,9 @@ private:
 	QString _collectibleEntity;
 	mtpRequestId _collectibleRequestId = 0;
 
+	QString _conferenceCallSlug;
+	mtpRequestId _conferenceCallRequestId = 0;
+
 };
 
 class SessionController : public SessionNavigation {