Confirm telegra.ph external opening.

Telegram/SourceFiles/core/click_handler_types.cpp

@@ -87,6 +87,11 @@ constexpr auto kReminderSetToastDuration = 4 * crl::time(1000);
 	return UrlRequiresConfirmation(url) || IsTelegramShortLinkHost(url);
 }
 
+[[nodiscard]] bool RequiresConfirmationAfterIvFallback(const QUrl &url) {
+	const auto host = url.host().toLower();
+	return (host == u"telegra.ph"_q) || (host == u"te.legra.ph"_q);
+}
+
 // Possible context owners: media viewer, profile, history widget.
 
 void SearchByHashtag(ClickContext context, const QString &tag) {
@@ -253,9 +258,6 @@ void HiddenUrlClickHandler::Open(QString url, QVariant context) {
 		return;
 	}
 
-	const auto open = [=] {
-		UrlClickHandler::Open(url, context);
-	};
 	if (url.startsWith(u"tg://"_q, Qt::CaseInsensitive)
 		|| url.startsWith(u"internal:"_q, Qt::CaseInsensitive)) {
 		UrlClickHandler::Open(url, QVariant::fromValue([&] {
@@ -267,9 +269,31 @@ void HiddenUrlClickHandler::Open(QString url, QVariant context) {
 		const auto parsedUrl = url.startsWith(u"tonsite://"_q)
 			? QUrl(url)
 			: QUrl::fromUserInput(url);
-		if (HiddenUrlRequiresConfirmation(parsedUrl)
-			&& !base::IsCtrlPressed()) {
-			const auto my = context.value<ClickHandlerContext>();
+		auto my = context.value<ClickHandlerContext>();
+		auto openContext = context;
+		const auto forceConfirmation = my.forceExternalUrlConfirmation
+			&& my.ignoreIv;
+		const auto skipConfirmation = base::IsCtrlPressed();
+		if (forceConfirmation) {
+			my.forceExternalUrlConfirmation = false;
+			openContext = QVariant::fromValue(my);
+		}
+		const auto confirmAfterIvFallback
+			= RequiresConfirmationAfterIvFallback(parsedUrl)
+			&& !my.ignoreIv
+			&& !skipConfirmation;
+		const auto canTryIv = (my.sessionWindow.get() != nullptr);
+		if (confirmAfterIvFallback && canTryIv) {
+			my.forceExternalUrlConfirmation = true;
+			openContext = QVariant::fromValue(my);
+		}
+		const auto open = [=] {
+			UrlClickHandler::Open(url, openContext);
+		};
+		if (forceConfirmation
+			|| (confirmAfterIvFallback && !canTryIv)
+			|| (HiddenUrlRequiresConfirmation(parsedUrl)
+				&& !skipConfirmation)) {
 			if (!my.show) {
 				Core::App().hideMediaView();
 			}

Telegram/SourceFiles/core/click_handler_types.h

@@ -56,6 +56,7 @@ struct ClickHandlerContext {
 	bool skipBotAutoLogin = false;
 	bool botStartAutoSubmit = false;
 	bool ignoreIv = false;
+	bool forceExternalUrlConfirmation = false;
 	bool dark = false;
 	// Is filled from peer info.
 	PeerData *peer = nullptr;

Telegram/SourceFiles/iv/iv_instance.cpp

@@ -1026,7 +1026,12 @@ void Instance::openWithIvPreferred(
 	const auto openExternal = [=] {
 		auto my = context.value<ClickHandlerContext>();
 		my.ignoreIv = true;
-		UrlClickHandler::Open(uri, QVariant::fromValue(my));
+		const auto updated = QVariant::fromValue(my);
+		if (my.forceExternalUrlConfirmation) {
+			HiddenUrlClickHandler::Open(uri, updated);
+		} else {
+			UrlClickHandler::Open(uri, updated);
+		}
 	};
 	const auto parts = uri.split('#');
 	if (parts.isEmpty() || parts[0].isEmpty()) {