Improve name/postcode validation.

Telegram/Resources/langs/lang.strings

@@ -1591,6 +1591,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_passport_gender_male" = "Male";
 "lng_passport_gender_female" = "Female";
 "lng_passport_country" = "Country";
+"lng_passport_residence_country" = "Residence";
 "lng_passport_country_choose" = "Choose country";
 "lng_passport_document_number" = "Card Number";
 "lng_passport_expiry_date" = "Expiry date";

Telegram/SourceFiles/messenger.cpp

@@ -839,23 +839,22 @@ bool Messenger::openLocalUrl(const QString &url) {
 	auto command = urlTrimmed.midRef(qstr("tg://").size());
 
 	const auto showPassportForm = [](const QMap<QString, QString> &params) {
-		if (const auto botId = params.value("bot_id", QString()).toInt()) {
-			const auto scope = params.value("scope", QString());
-			const auto callback = params.value("callback_url", QString());
-			const auto publicKey = params.value("public_key", QString());
-			const auto payload = params.value("payload", QString());
-			const auto errors = params.value("errors", QString());
-			if (const auto window = App::wnd()) {
-				if (const auto controller = window->controller()) {
-					controller->showPassportForm(Passport::FormRequest(
-						botId,
-						scope,
-						callback,
-						publicKey,
-						payload,
-						errors));
-					return true;
-				}
+		const auto botId = params.value("bot_id", QString()).toInt();
+		const auto scope = params.value("scope", QString());
+		const auto callback = params.value("callback_url", QString());
+		const auto publicKey = params.value("public_key", QString());
+		const auto payload = params.value("payload", QString());
+		const auto errors = params.value("errors", QString());
+		if (const auto window = App::wnd()) {
+			if (const auto controller = window->controller()) {
+				controller->showPassportForm(Passport::FormRequest(
+					botId,
+					scope,
+					callback,
+					publicKey,
+					payload,
+					errors));
+				return true;
 			}
 		}
 		return false;

Telegram/SourceFiles/passport/passport_form_view_controller.cpp

@@ -158,7 +158,7 @@ QString ComputeScopeRowReadyString(const Scope &scope) {
 					return QString();
 				}
 				const auto text = i->second.text;
-				if (row.validate && !row.validate(text)) {
+				if (row.error && row.error(text).has_value()) {
 					return QString();
 				}
 				pushListValue(format ? format(text) : text);
@@ -170,7 +170,7 @@ QString ComputeScopeRowReadyString(const Scope &scope) {
 					return QString();
 				}
 				const auto text = i->second.text;
-				if (row.validate && !row.validate(text)) {
+				if (row.error && row.error(text).has_value()) {
 					return QString();
 				}
 				pushListValue(text);

Telegram/SourceFiles/passport/passport_panel_controller.cpp

@@ -28,8 +28,7 @@ constexpr auto kMaxDocumentSize = 24;
 constexpr auto kMaxStreetSize = 64;
 constexpr auto kMinCitySize = 2;
 constexpr auto kMaxCitySize = 64;
-constexpr auto kMinPostcodeSize = 2;
-constexpr auto kMaxPostcodeSize = 12;
+constexpr auto kMaxPostcodeSize = 10;
 
 EditDocumentScheme GetDocumentScheme(
 		Scope::Type type,
@@ -50,32 +49,53 @@ EditDocumentScheme GetDocumentScheme(
 		return value;
 	};
 	const auto DontValidate = nullptr;
-	const auto LimitedValidate = [](int max, int min = 1) {
+	const auto FromBoolean = [](auto validation) {
 		return [=](const QString &value) {
-			return (value.size() >= min) && (value.size() <= max);
+			return validation(value)
+				? base::none
+				: base::make_optional(QString());
 		};
 	};
-	const auto NameValidate = LimitedValidate(kMaxNameSize);
+	const auto LimitedValidate = [=](int max, int min = 1) {
+		return FromBoolean([=](const QString &value) {
+			return (value.size() >= min) && (value.size() <= max);
+		});
+	};
+	using Result = base::optional<QString>;
+	const auto NameValidate = [](const QString &value) -> Result {
+		if (value.isEmpty() || value.size() > kMaxNameSize) {
+			return QString();
+		} else if (!QRegularExpression(
+			"^[a-zA-Z\\- ]+$"
+		).match(value).hasMatch()) {
+			return "Use latin characters only.";// lang(lng_passport_bad_name);
+		}
+		return base::none;
+	};
+
 	const auto DocumentValidate = LimitedValidate(kMaxDocumentSize);
 	const auto StreetValidate = LimitedValidate(kMaxStreetSize);
 	const auto CityValidate = LimitedValidate(kMaxCitySize, kMinCitySize);
-	const auto PostcodeValidate = LimitedValidate(
-		kMaxPostcodeSize,
-		kMinPostcodeSize);
-	const auto DateValidate = [](const QString &value) {
+	const auto PostcodeValidate = FromBoolean([](const QString &value) {
+		return QRegularExpression(
+			QString("^[a-zA-Z0-9\\-]{2,%1}$").arg(kMaxPostcodeSize)
+		).match(value).hasMatch();
+	});
+	const auto DateValidateBoolean = [](const QString &value) {
 		return QRegularExpression(
 			"^\\d{2}\\.\\d{2}\\.\\d{4}$"
 		).match(value).hasMatch();
 	};
-	const auto DateOrEmptyValidate = [=](const QString &value) {
-		return value.isEmpty() || DateValidate(value);
-	};
-	const auto GenderValidate = [](const QString &value) {
+	const auto DateValidate = FromBoolean(DateValidateBoolean);
+	const auto DateOrEmptyValidate = FromBoolean([=](const QString &value) {
+		return value.isEmpty() || DateValidateBoolean(value);
+	});
+	const auto GenderValidate = FromBoolean([](const QString &value) {
 		return value == qstr("male") || value == qstr("female");
-	};
-	const auto CountryValidate = [=](const QString &value) {
+	});
+	const auto CountryValidate = FromBoolean([=](const QString &value) {
 		return !CountryFormat(value).isEmpty();
-	};
+	});
 
 	switch (type) {
 	case Scope::Type::Identity: {
@@ -142,6 +162,14 @@ EditDocumentScheme GetDocumentScheme(
 				CountryValidate,
 				CountryFormat,
 			},
+			{
+				ValueClass::Fields,
+				PanelDetailsType::Country,
+				qsl("residence_country_code"),
+				lang(lng_passport_residence_country),
+				CountryValidate,
+				CountryFormat,
+			},
 			{
 				ValueClass::Scans,
 				PanelDetailsType::Text,
@@ -234,7 +262,7 @@ EditDocumentScheme GetDocumentScheme(
 			},
 			{
 				ValueClass::Fields,
-				PanelDetailsType::Text,
+				PanelDetailsType::Postcode,
 				qsl("post_code"),
 				lang(lng_passport_postcode),
 				PostcodeValidate,

Telegram/SourceFiles/passport/passport_panel_details_row.cpp

@@ -22,9 +22,60 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 namespace Passport {
 namespace {
 
-class TextRow : public PanelDetailsRow {
+class PostcodeInput : public Ui::MaskedInputField {
 public:
-	TextRow(
+	PostcodeInput(
+		QWidget *parent,
+		const style::InputField &st,
+		base::lambda<QString()> placeholderFactory,
+		const QString &val);
+
+protected:
+	void correctValue(
+		const QString &was,
+		int wasCursor,
+		QString &now,
+		int &nowCursor) override;
+
+};
+
+PostcodeInput::PostcodeInput(
+	QWidget *parent,
+	const style::InputField &st,
+	base::lambda<QString()> placeholderFactory,
+	const QString &val)
+: MaskedInputField(parent, st, std::move(placeholderFactory), val) {
+	if (!QRegularExpression("^[a-zA-Z0-9\\-]+$").match(val).hasMatch()) {
+		setText(QString());
+	}
+}
+
+void PostcodeInput::correctValue(
+		const QString &was,
+		int wasCursor,
+		QString &now,
+		int &nowCursor) {
+	QString newText;
+	newText.reserve(now.size());
+	auto newPos = nowCursor;
+	for (auto i = 0, l = now.size(); i < l; ++i) {
+		const auto ch = now[i];
+		if ((ch >= '0' && ch <= '9')
+			|| (ch >= 'a' && ch <= 'z')
+			|| (ch >= 'A' && ch <= 'Z')
+			|| (ch == '-')) {
+			newText.append(ch);
+		} else if (i < nowCursor) {
+			--newPos;
+		}
+	}
+	setCorrectedText(now, nowCursor, newText, newPos);
+}
+
+template <typename Input>
+class AbstractTextRow : public PanelDetailsRow {
+public:
+	AbstractTextRow(
 		QWidget *parent,
 		const QString &label,
 		const QString &value,
@@ -39,7 +90,7 @@ private:
 	void showInnerError() override;
 	void finishInnerAnimating() override;
 
-	object_ptr<Ui::InputField> _field;
+	object_ptr<Input> _field;
 	rpl::variable<QString> _value;
 
 };
@@ -192,7 +243,8 @@ private:
 
 };
 
-TextRow::TextRow(
+template <typename Input>
+AbstractTextRow<Input>::AbstractTextRow(
 	QWidget *parent,
 	const QString &label,
 	const QString &value,
@@ -201,34 +253,40 @@ TextRow::TextRow(
 , _field(this, st::passportDetailsField, nullptr, value)
 , _value(value) {
 	_field->setMaxLength(limit);
-	connect(_field, &Ui::InputField::changed, [=] {
+	connect(_field, &Input::changed, [=] {
 		_value = valueCurrent();
 	});
 }
 
-bool TextRow::setFocusFast() {
+template <typename Input>
+bool AbstractTextRow<Input>::setFocusFast() {
 	_field->setFocusFast();
 	return true;
 }
 
-QString TextRow::valueCurrent() const {
+template <typename Input>
+QString AbstractTextRow<Input>::valueCurrent() const {
 	return _field->getLastText();
 }
 
-rpl::producer<QString> TextRow::value() const {
+template <typename Input>
+rpl::producer<QString> AbstractTextRow<Input>::value() const {
 	return _value.value();
 }
 
-int TextRow::resizeInner(int left, int top, int width) {
+template <typename Input>
+int AbstractTextRow<Input>::resizeInner(int left, int top, int width) {
 	_field->setGeometry(left, top, width, _field->height());
 	return st::semiboldFont->height;
 }
 
-void TextRow::showInnerError() {
+template <typename Input>
+void AbstractTextRow<Input>::showInnerError() {
 	_field->showError();
 }
 
-void TextRow::finishInnerAnimating() {
+template <typename Input>
+void AbstractTextRow<Input>::finishInnerAnimating() {
 	_field->finishAnimating();
 }
 
@@ -905,7 +963,17 @@ object_ptr<PanelDetailsRow> PanelDetailsRow::Create(
 	auto result = [&]() -> object_ptr<PanelDetailsRow> {
 		switch (type) {
 		case Type::Text:
-			return object_ptr<TextRow>(parent, label, value, limit);
+			return object_ptr<AbstractTextRow<Ui::InputField>>(
+				parent,
+				label,
+				value,
+				limit);
+		case Type::Postcode:
+			return object_ptr<AbstractTextRow<PostcodeInput>>(
+				parent,
+				label,
+				value,
+				limit);
 		case Type::Country:
 			return object_ptr<CountryRow>(parent, controller, label, value);
 		case Type::Gender:
@@ -944,7 +1012,7 @@ int PanelDetailsRow::resizeGetHeight(int newWidth) {
 	return result;
 }
 
-void PanelDetailsRow::showError(const QString &error) {
+void PanelDetailsRow::showError(base::optional<QString> error) {
 	if (!_errorHideSubscription) {
 		_errorHideSubscription = true;
 
@@ -955,17 +1023,24 @@ void PanelDetailsRow::showError(const QString &error) {
 	}
 	showInnerError();
 	startErrorAnimation(true);
-	if (!error.isEmpty()) {
+	if (!error.has_value()) {
+		return;
+	}
+	if (error->isEmpty()) {
+		if (_error) {
+			_error->hide(anim::type::normal);
+		}
+	} else {
 		if (!_error) {
 			_error.create(
 				this,
 				object_ptr<Ui::FlatLabel>(
 					this,
-					error,
+					*error,
 					Ui::FlatLabel::InitType::Simple,
 					st::passportVerifyErrorLabel));
 		} else {
-			_error->entity()->setText(error);
+			_error->entity()->setText(*error);
 		}
 		_error->heightValue(
 		) | rpl::start_with_next([=] {

Telegram/SourceFiles/passport/passport_panel_details_row.h

@@ -25,6 +25,7 @@ class PanelController;
 
 enum class PanelDetailsType {
 	Text,
+	Postcode,
 	Country,
 	Date,
 	Gender,
@@ -65,7 +66,7 @@ public:
 	virtual bool setFocusFast();
 	virtual rpl::producer<QString> value() const = 0;
 	virtual QString valueCurrent() const = 0;
-	void showError(const QString &error);
+	void showError(base::optional<QString> error = base::none);
 	bool errorShown() const;
 	void hideError();
 	void finishAnimating();

Telegram/SourceFiles/passport/passport_panel_edit_document.cpp

@@ -419,10 +419,14 @@ bool PanelEditDocument::validate() {
 	auto first = QPointer<PanelDetailsRow>();
 	for (const auto [i, field] : base::reversed(_details)) {
 		const auto &row = _scheme.rows[i];
-		if (field->errorShown()
-			|| (row.validate && !row.validate(field->valueCurrent()))) {
-			field->showError(QString());
+		if (field->errorShown()) {
+			field->showError();
 			first = field;
+		} else if (row.error) {
+			if (const auto error = row.error(field->valueCurrent())) {
+				field->showError(error);
+				first = field;
+			}
 		}
 	}
 	if (error) {

Telegram/SourceFiles/passport/passport_panel_edit_document.h

@@ -43,7 +43,7 @@ struct EditDocumentScheme {
 		PanelDetailsType inputType = PanelDetailsType();
 		QString key;
 		QString label;
-		base::lambda<bool(const QString &value)> validate;
+		base::lambda<base::optional<QString>(const QString &value)> error;
 		base::lambda<QString(const QString &value)> format;
 		int lengthLimit = 0;
 	};