Added support of admin log event of extended subscriptions.

Telegram/Resources/langs/lang.strings

@@ -4588,6 +4588,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_admin_log_admin_manage_calls" = "Manage voice chats";
 "lng_admin_log_admin_manage_calls_channel" = "Manage live streams";
 "lng_admin_log_admin_add_admins" = "Add new admins";
+"lng_admin_log_subscription_extend" = "{name} renewed subscription until {date}";
 
 "lng_admin_log_antispam_menu_report" = "Report False Positive";
 "lng_admin_log_antispam_menu_report_toast" = "You can manage anti-spam settings in {link}.";

Telegram/SourceFiles/api/api_chat_participants.cpp

@@ -8,6 +8,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "api/api_chat_participants.h"
 
 #include "apiwrap.h"
+#include "base/unixtime.h"
 #include "boxes/add_contact_box.h" // ShowAddParticipantsError
 #include "boxes/peers/add_participants_box.h" // ChatInviteForbidden
 #include "data/data_changes.h"
@@ -267,8 +268,16 @@ ChatParticipant::ChatParticipant(
 	}, [&](const MTPDchannelParticipantSelf &data) {
 		_type = Type::Member;
 		_by = peerToUser(peerFromUser(data.vinviter_id()));
+		if (data.vsubscription_until_date()) {
+			_subscriptionDate = base::unixtime::parse(
+				data.vsubscription_until_date()->v);
+		}
 	}, [&](const MTPDchannelParticipant &data) {
 		_type = Type::Member;
+		if (data.vsubscription_until_date()) {
+			_subscriptionDate = base::unixtime::parse(
+				data.vsubscription_until_date()->v);
+		}
 	}, [&](const MTPDchannelParticipantBanned &data) {
 		_restrictions = ChatRestrictionsInfo(data.vbanned_rights());
 		_by = peerToUser(peerFromUser(data.vkicked_by()));
@@ -348,6 +357,10 @@ ChatAdminRightsInfo ChatParticipant::rights() const {
 	return _rights;
 }
 
+QDateTime ChatParticipant::subscriptionDate() const {
+	return _subscriptionDate;
+}
+
 ChatParticipant::Type ChatParticipant::type() const {
 	return _type;
 }

Telegram/SourceFiles/api/api_chat_participants.h

@@ -60,6 +60,8 @@ public:
 	ChatRestrictionsInfo restrictions() const;
 	ChatAdminRightsInfo rights() const;
 
+	QDateTime subscriptionDate() const;
+
 	Type type() const;
 	QString rank() const;
 
@@ -73,6 +75,7 @@ private:
 	bool _canBeEdited = false;
 
 	QString _rank;
+	QDateTime _subscriptionDate;
 
 	ChatRestrictionsInfo _restrictions;
 	ChatAdminRightsInfo _rights;

Telegram/SourceFiles/history/admin_log/history_admin_log_item.cpp

@@ -2039,7 +2039,26 @@ void GenerateItems(
 	};
 
 	const auto createParticipantSubExtend = [&](const LogParticipantSubExtend &action) {
-		AssertIsDebug();
+		const auto participant = Api::ChatParticipant(
+			action.vnew_participant(),
+			channel);
+		if (participant.subscriptionDate().isNull()) {
+			return;
+		}
+		const auto participantPeer = channel->owner().peer(participant.id());
+		const auto participantPeerLink = participantPeer->createOpenLink();
+		const auto participantPeerLinkText = Ui::Text::Link(
+			participantPeer->name(),
+			QString());
+		addServiceMessageWithLink(
+			tr::lng_admin_log_subscription_extend(
+				tr::now,
+				lt_name,
+				participantPeerLinkText,
+				lt_date,
+				{ langDateTimeFull(participant.subscriptionDate()) },
+				Ui::Text::WithEntities),
+			participantPeerLink);
 	};
 
 	action.match(