Add information about saved data.

Telegram/Resources/langs/lang.strings

@@ -1657,8 +1657,11 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_export_title" = "Export Personal Data";
 "lng_export_progress_title" = "Exporting personal data";
 "lng_export_option_info" = "Personal information";
+"lng_export_option_info_about" = "Your chosen screen name, username and profile pictures are public and available to everyone. You don't have to supply your real name.";
 "lng_export_option_contacts" = "Contacts list";
+"lng_export_option_contacts_about" = "To let you connect with friends across all your devices, your contacts are continuosly synced with Telegram. You can disable syncing or delete your stored contacts in Settings > Privacy & Security.";
 "lng_export_option_sessions" = "Sessions list";
+"lng_export_option_sessions_about" = "We store this to display your connected devices in Settings > Privacy & Security > Active Sessions. Terminating a session removes this data from Telegram servers.";
 "lng_export_header_chats" = "Chat export settings";
 "lng_export_option_personal_chats" = "Personal chats";
 "lng_export_option_bot_chats" = "Bot chats";

Telegram/SourceFiles/export/data/export_data_about.h

@@ -0,0 +1,35 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+#include "export/data/export_data_types.h"
+
+namespace Export {
+namespace Data {
+
+inline Utf8String AboutPersonalInfo() {
+	return "Your chosen screen name, username and profile pictures "
+		"are public and available to everyone. "
+		"You don't have to supply your real name.";
+}
+
+inline Utf8String AboutContacts() {
+	return "To let you connect with friends across all your devices, "
+		"your contacts are continuosly synced with Telegram. "
+		"You can disable syncing or delete your stored contacts "
+		"in Settings > Privacy & Security.";
+}
+
+inline Utf8String AboutSessions() {
+	return "We store this to display your connected devices "
+		"in Settings > Privacy & Security > Active Sessions. "
+		"Terminating a session removes this data from Telegram servers.";
+}
+
+} // namespace Data
+} // namespace Export

Telegram/SourceFiles/export/output/export_output_json.cpp

@@ -9,6 +9,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "export/output/export_output_result.h"
 #include "export/data/export_data_types.h"
+#include "export/data/export_data_about.h"
 #include "core/utils.h"
 
 #include <QtCore/QDateTime>
@@ -615,6 +616,7 @@ Result JsonWriter::writePersonal(const Data::PersonalInfo &data) {
 	return _output->writeBlock(
 		prepareObjectItemStart("personal_information")
 		+ SerializeObject(_context, {
+		{ "about", SerializeString(Data::AboutPersonalInfo()) },
 		{ "first_name", SerializeString(info.firstName) },
 		{ "last_name", SerializeString(info.lastName) },
 		{
@@ -687,6 +689,10 @@ Result JsonWriter::writeSavedContacts(const Data::ContactsList &data) {
 	Expects(_output != nullptr);
 
 	auto block = prepareObjectItemStart("contacts");
+	block.append(pushNesting(Context::kObject));
+	block.append(prepareObjectItemStart("about"));
+	block.append(SerializeString(Data::AboutContacts()));
+	block.append(prepareObjectItemStart("list"));
 	block.append(pushNesting(Context::kArray));
 	for (const auto index : Data::SortedContactsIndices(data)) {
 		const auto &contact = data.list[index];
@@ -711,6 +717,7 @@ Result JsonWriter::writeSavedContacts(const Data::ContactsList &data) {
 			}));
 		}
 	}
+	block.append(popNesting());
 	return _output->writeBlock(block + popNesting());
 }
 
@@ -765,6 +772,10 @@ Result JsonWriter::writeSessions(const Data::SessionsList &data) {
 	Expects(_output != nullptr);
 
 	auto block = prepareObjectItemStart("sessions");
+	block.append(pushNesting(Context::kObject));
+	block.append(prepareObjectItemStart("about"));
+	block.append(SerializeString(Data::AboutSessions()));
+	block.append(prepareObjectItemStart("list"));
 	block.append(pushNesting(Context::kArray));
 	for (const auto &session : data.list) {
 		block.append(prepareArrayItemStart());
@@ -787,6 +798,7 @@ Result JsonWriter::writeSessions(const Data::SessionsList &data) {
 			{ "created", SerializeDate(session.created) },
 		}));
 	}
+	block.append(popNesting());
 	return _output->writeBlock(block + popNesting());
 }
 

Telegram/SourceFiles/export/output/export_output_text.cpp

@@ -9,6 +9,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "export/output/export_output_result.h"
 #include "export/data/export_data_types.h"
+#include "export/data/export_data_about.h"
 #include "core/utils.h"
 
 #include <QtCore/QFile>
@@ -457,6 +458,9 @@ Result TextWriter::writePersonal(const Data::PersonalInfo &data) {
 		{ "Username", FormatUsername(data.user.username) },
 		{ "Bio", data.bio },
 		})
+		+ kLineBreak
+		+ Data::AboutPersonalInfo()
+		+ kLineBreak
 		+ kLineBreak;
 	return _summary->writeBlock(serialized);
 }
@@ -545,7 +549,10 @@ Result TextWriter::writeSavedContacts(const Data::ContactsList &data) {
 			}));
 		}
 	}
-	const auto full = JoinList(kLineBreak, list);
+	const auto full = Data::AboutContacts()
+		+ kLineBreak
+		+ kLineBreak
+		+ JoinList(kLineBreak, list);
 	if (const auto result = file->writeBlock(full); !result) {
 		return result;
 	}
@@ -663,7 +670,10 @@ Result TextWriter::writeSessions(const Data::SessionsList &data) {
 			{ "Created", Data::FormatDateTime(session.created) },
 		}));
 	}
-	const auto full = JoinList(kLineBreak, list);
+	const auto full = Data::AboutSessions()
+		+ kLineBreak
+		+ kLineBreak
+		+ JoinList(kLineBreak, list);
 	if (const auto result = file->writeBlock(full); !result) {
 		return result;
 	}

Telegram/SourceFiles/export/view/export.style

@@ -43,6 +43,12 @@ exportLocationLabel: FlatLabel(boxLabel) {
 }
 exportLocationPadding: margins(22px, 8px, 22px, 8px);
 
+exportAboutOptionLabel: FlatLabel(defaultFlatLabel) {
+	textFg: windowSubTextFg;
+	minWidth: 175px;
+}
+exportAboutOptionPadding: margins(22px, 0px, 22px, 16px);
+
 exportErrorLabel: FlatLabel(boxLabel) {
 	minWidth: 175px;
 	align: align(top);

Telegram/SourceFiles/export/view/export_view_settings.cpp

@@ -95,12 +95,21 @@ void SettingsWidget::setupContent() {
 }
 
 void SettingsWidget::setupOptions(not_null<Ui::VerticalLayout*> container) {
-	addOption(
+	addOptionWithAbout(
 		container,
 		lng_export_option_info,
-		Type::PersonalInfo | Type::Userpics);
+		Type::PersonalInfo | Type::Userpics,
-	addOption(container, lng_export_option_contacts, Type::Contacts);
+		lng_export_option_info_about);
-	addOption(container, lng_export_option_sessions, Type::Sessions);
+	addOptionWithAbout(
+		container,
+		lng_export_option_contacts,
+		Type::Contacts,
+		lng_export_option_contacts_about);
+	addOptionWithAbout(
+		container,
+		lng_export_option_sessions,
+		Type::Sessions,
+		lng_export_option_sessions_about);
 	addHeader(container, lng_export_header_chats);
 	addOption(
 		container,
@@ -311,6 +320,21 @@ not_null<Ui::Checkbox*> SettingsWidget::addOption(
 	return checkbox;
 }
 
+void SettingsWidget::addOptionWithAbout(
+		not_null<Ui::VerticalLayout*> container,
+		LangKey key,
+		Types types,
+		LangKey about) {
+	addOption(container, key, types);
+	const auto label = container->add(
+		object_ptr<Ui::FlatLabel>(
+			container,
+			lang(about),
+			Ui::FlatLabel::InitType::Simple,
+			st::exportAboutOptionLabel),
+		st::exportAboutOptionPadding);
+}
+
 void SettingsWidget::addChatOption(
 		not_null<Ui::VerticalLayout*> container,
 		LangKey key,

Telegram/SourceFiles/export/view/export_view_settings.h

@@ -51,6 +51,11 @@ private:
 		not_null<Ui::VerticalLayout*> container,
 		LangKey key,
 		Types types);
+	void addOptionWithAbout(
+		not_null<Ui::VerticalLayout*> container,
+		LangKey key,
+		Types types,
+		LangKey about);
 	void addChatOption(
 		not_null<Ui::VerticalLayout*> container,
 		LangKey key,

Telegram/gyp/lib_export.gyp

@@ -56,6 +56,7 @@
       '<(src_loc)/export/export_controller.h',
       '<(src_loc)/export/export_settings.cpp',
       '<(src_loc)/export/export_settings.h',
+	  '<(src_loc)/export/data/export_data_about.h',
       '<(src_loc)/export/data/export_data_types.cpp',
       '<(src_loc)/export/data/export_data_types.h',
       '<(src_loc)/export/output/export_output_abstract.cpp',