Support tg://proxy links.

Telegram/SourceFiles/boxes/connection_box.cpp

@@ -23,18 +23,36 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "application.h"
 #include "styles/style_boxes.h"
 
-void ConnectionBox::ShowApplyProxyConfirmation(const QMap<QString, QString> &fields) {
-	auto server = fields.value(qsl("server"));
-	auto port = fields.value(qsl("port")).toUInt();
-	if (!server.isEmpty() && port != 0) {
+void ConnectionBox::ShowApplyProxyConfirmation(
+		ProxyData::Type type,
+		const QMap<QString, QString> &fields) {
+	const auto server = fields.value(qsl("server"));
+	const auto port = fields.value(qsl("port")).toUInt();
+	const auto secret = fields.value(qsl("secret"));
+	const auto valid = !server.isEmpty()
+		&& (port != 0)
+		&& (type != ProxyData::Type::Mtproto
+			|| ProxyData::ValidSecret(secret))
+		&& (type == ProxyData::Type::Socks5
+			|| type == ProxyData::Type::Mtproto);
+	if (valid) {
 		const auto box = std::make_shared<QPointer<ConfirmBox>>();
-		*box = Ui::show(Box<ConfirmBox>(lng_sure_enable_socks(lt_server, server, lt_port, QString::number(port)), lang(lng_sure_enable), [=] {
+		const auto text = lng_sure_enable_socks(
+			lt_server,
+			server,
+			lt_port,
+			QString::number(port));
+		*box = Ui::show(Box<ConfirmBox>(text, lang(lng_sure_enable), [=] {
 			auto proxy = ProxyData();
-			proxy.type = ProxyData::Type::Socks5;
+			proxy.type = type;
 			proxy.host = server;
-			proxy.user = fields.value(qsl("user"));
-			proxy.password = fields.value(qsl("pass"));
 			proxy.port = port;
+			if (type == ProxyData::Type::Socks5) {
+				proxy.user = fields.value(qsl("user"));
+				proxy.password = fields.value(qsl("pass"));
+			} else if (type == ProxyData::Type::Mtproto) {
+				proxy.password = secret;
+			}
 			Global::SetConnectionType(dbictTcpProxy);
 			Global::SetConnectionProxy(proxy);
 			Local::writeSettings();

Telegram/SourceFiles/boxes/connection_box.h

@@ -26,7 +26,9 @@ class ConnectionBox : public BoxContent {
 public:
 	ConnectionBox(QWidget *parent);
 
-	static void ShowApplyProxyConfirmation(const QMap<QString, QString> &fields);
+	static void ShowApplyProxyConfirmation(
+		ProxyData::Type type,
+		const QMap<QString, QString> &fields);
 
 protected:
 	void prepare() override;

Telegram/SourceFiles/core/click_handler_types.cpp

@@ -50,6 +50,8 @@ QString tryConvertUrlToLocal(QString url) {
 			return url;
 		} else if (auto socksMatch = regex_match(qsl("socks/?\\?(.+)(#|$)"), query, matchOptions)) {
 			return qsl("tg://socks?") + socksMatch->captured(1);
+		} else if (auto proxyMatch = regex_match(qsl("proxy/?\\?(.+)(#|$)"), query, matchOptions)) {
+			return qsl("tg://proxy?") + proxyMatch->captured(1);
 		} else if (auto usernameMatch = regex_match(qsl("^([a-zA-Z0-9\\.\\_]+)(/?\\?|/?$|/(\\d+)/?(?:\\?|$))"), query, matchOptions)) {
 			auto params = query.mid(usernameMatch->captured(0).size()).toString();
 			auto postParam = QString();

Telegram/SourceFiles/core/utils.cpp

@@ -236,6 +236,10 @@ namespace {
 	_MsStarter _msStarter;
 }
 
+bool ProxyData::ValidSecret(const QString &secret) {
+	return QRegularExpression("^[a-fA-F0-9]{32}$").match(secret).hasMatch();
+}
+
 namespace ThirdParty {
 
 	void start() {

Telegram/SourceFiles/core/utils.h

@@ -434,10 +434,14 @@ struct ProxyData {
 		Http,
 		Mtproto,
 	};
+
 	Type type = Type::None;
 	QString host;
 	uint32 port = 0;
 	QString user, password;
+
+	static bool ValidSecret(const QString &secret);
+
 };
 
 enum DBIScale {

Telegram/SourceFiles/messenger.cpp

@@ -838,7 +838,11 @@ bool Messenger::openLocalUrl(const QString &url) {
 		}
 	} else if (auto socksMatch = regex_match(qsl("^socks/?\\?(.+)(#|$)"), command, matchOptions)) {
 		auto params = url_parse_params(socksMatch->captured(1), UrlParamNameTransform::ToLower);
-		ConnectionBox::ShowApplyProxyConfirmation(params);
+		ConnectionBox::ShowApplyProxyConfirmation(ProxyData::Type::Socks5, params);
+		return true;
+	} else if (auto proxyMatch = regex_match(qsl("^proxy/?\\?(.+)(#|$)"), command, matchOptions)) {
+		auto params = url_parse_params(proxyMatch->captured(1), UrlParamNameTransform::ToLower);
+		ConnectionBox::ShowApplyProxyConfirmation(ProxyData::Type::Mtproto, params);
 		return true;
 	}
 	return false;

Telegram/gyp/telegram_sources.txt

@@ -1,6 +1,7 @@
 <(src_loc)/base/algorithm.h
 <(src_loc)/base/assertion.h
 <(src_loc)/base/build_config.h
+<(src_loc)/base/bytes.h
 <(src_loc)/base/flags.h
 <(src_loc)/base/enum_mask.h
 <(src_loc)/base/flat_map.h