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nheko/src/RegisterPage.cpp

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// SPDX-FileCopyrightText: 2017 Konstantinos Sideris <siderisk@auth.gr>
// SPDX-FileCopyrightText: 2021 Nheko Contributors
//
// SPDX-License-Identifier: GPL-3.0-or-later
#include <QInputDialog>
#include <QLabel>
#include <QMetaType>
#include <QPainter>
#include <QStyleOption>
#include <QTimer>
#include <QtMath>
#include <mtx/responses/register.hpp>
#include <mtx/responses/well-known.hpp>
#include <mtxclient/http/client.hpp>
#include "Config.h"
#include "Logging.h"
#include "MainWindow.h"
#include "MatrixClient.h"
#include "RegisterPage.h"
#include "ui/FlatButton.h"
#include "ui/RaisedButton.h"
#include "ui/TextField.h"
#include "ui/UIA.h"
#include "dialogs/FallbackAuth.h"
#include "dialogs/ReCaptcha.h"
Q_DECLARE_METATYPE(mtx::user_interactive::Unauthorized)
Q_DECLARE_METATYPE(mtx::user_interactive::Auth)
RegisterPage::RegisterPage(QWidget *parent)
: QWidget(parent)
{
qRegisterMetaType<mtx::user_interactive::Unauthorized>();
qRegisterMetaType<mtx::user_interactive::Auth>();
top_layout_ = new QVBoxLayout();
back_layout_ = new QHBoxLayout();
back_layout_->setSpacing(0);
back_layout_->setContentsMargins(5, 5, -1, -1);
back_button_ = new FlatButton(this);
back_button_->setMinimumSize(QSize(30, 30));
QIcon icon;
icon.addFile(":/icons/icons/ui/angle-arrow-left.svg");
back_button_->setIcon(icon);
back_button_->setIconSize(QSize(32, 32));
back_layout_->addWidget(back_button_, 0, Qt::AlignLeft | Qt::AlignVCenter);
back_layout_->addStretch(1);
QIcon logo;
logo.addFile(":/logos/register.png");
logo_ = new QLabel(this);
logo_->setPixmap(logo.pixmap(128));
logo_layout_ = new QHBoxLayout();
logo_layout_->setMargin(0);
logo_layout_->addWidget(logo_, 0, Qt::AlignHCenter);
form_wrapper_ = new QHBoxLayout();
form_widget_ = new QWidget();
form_widget_->setMinimumSize(QSize(350, 300));
form_layout_ = new QVBoxLayout();
form_layout_->setSpacing(20);
form_layout_->setContentsMargins(0, 0, 0, 40);
form_widget_->setLayout(form_layout_);
form_wrapper_->addStretch(1);
form_wrapper_->addWidget(form_widget_);
form_wrapper_->addStretch(1);
username_input_ = new TextField();
username_input_->setLabel(tr("Username"));
username_input_->setRegexp(QRegularExpression("[a-z0-9._=/-]+"));
username_input_->setToolTip(tr("The username must not be empty, and must contain only the "
"characters a-z, 0-9, ., _, =, -, and /."));
password_input_ = new TextField();
password_input_->setLabel(tr("Password"));
password_input_->setRegexp(QRegularExpression("^.{8,}$"));
password_input_->setEchoMode(QLineEdit::Password);
password_input_->setToolTip(tr("Please choose a secure password. The exact requirements "
"for password strength may depend on your server."));
password_confirmation_ = new TextField();
password_confirmation_->setLabel(tr("Password confirmation"));
password_confirmation_->setEchoMode(QLineEdit::Password);
server_input_ = new TextField();
server_input_->setLabel(tr("Homeserver"));
server_input_->setRegexp(QRegularExpression(".+"));
server_input_->setToolTip(
tr("A server that allows registration. Since matrix is decentralized, you need to first "
"find a server you can register on or host your own."));
error_username_label_ = new QLabel(this);
error_username_label_->setWordWrap(true);
error_username_label_->hide();
error_password_label_ = new QLabel(this);
error_password_label_->setWordWrap(true);
error_password_label_->hide();
error_password_confirmation_label_ = new QLabel(this);
error_password_confirmation_label_->setWordWrap(true);
error_password_confirmation_label_->hide();
error_server_label_ = new QLabel(this);
error_server_label_->setWordWrap(true);
error_server_label_->hide();
form_layout_->addWidget(username_input_, Qt::AlignHCenter);
form_layout_->addWidget(error_username_label_, Qt::AlignHCenter);
form_layout_->addWidget(password_input_, Qt::AlignHCenter);
form_layout_->addWidget(error_password_label_, Qt::AlignHCenter);
form_layout_->addWidget(password_confirmation_, Qt::AlignHCenter);
form_layout_->addWidget(error_password_confirmation_label_, Qt::AlignHCenter);
form_layout_->addWidget(server_input_, Qt::AlignHCenter);
form_layout_->addWidget(error_server_label_, Qt::AlignHCenter);
button_layout_ = new QHBoxLayout();
button_layout_->setSpacing(0);
button_layout_->setMargin(0);
error_label_ = new QLabel(this);
error_label_->setWordWrap(true);
register_button_ = new RaisedButton(tr("REGISTER"), this);
register_button_->setMinimumSize(350, 65);
register_button_->setFontSize(conf::btn::fontSize);
register_button_->setCornerRadius(conf::btn::cornerRadius);
button_layout_->addStretch(1);
button_layout_->addWidget(register_button_);
button_layout_->addStretch(1);
top_layout_->addLayout(back_layout_);
top_layout_->addLayout(logo_layout_);
top_layout_->addLayout(form_wrapper_);
top_layout_->addStretch(1);
top_layout_->addLayout(button_layout_);
top_layout_->addWidget(error_label_, 0, Qt::AlignHCenter);
top_layout_->addStretch(1);
setLayout(top_layout_);
connect(back_button_, SIGNAL(clicked()), this, SLOT(onBackButtonClicked()));
connect(register_button_, SIGNAL(clicked()), this, SLOT(onRegisterButtonClicked()));
connect(username_input_, SIGNAL(returnPressed()), register_button_, SLOT(click()));
connect(username_input_, &TextField::editingFinished, this, &RegisterPage::checkUsername);
connect(password_input_, SIGNAL(returnPressed()), register_button_, SLOT(click()));
connect(password_input_, &TextField::editingFinished, this, &RegisterPage::checkPassword);
connect(password_confirmation_, SIGNAL(returnPressed()), register_button_, SLOT(click()));
connect(password_confirmation_,
&TextField::editingFinished,
this,
&RegisterPage::checkPasswordConfirmation);
connect(server_input_, SIGNAL(returnPressed()), register_button_, SLOT(click()));
connect(server_input_, &TextField::editingFinished, this, &RegisterPage::checkServer);
connect(
this,
&RegisterPage::serverError,
this,
[this](const QString &msg) {
server_input_->setValid(false);
showError(error_server_label_, msg);
},
Qt::QueuedConnection);
connect(this, &RegisterPage::wellKnownLookup, this, &RegisterPage::doWellKnownLookup);
connect(this, &RegisterPage::versionsCheck, this, &RegisterPage::doVersionsCheck);
connect(this, &RegisterPage::registration, this, &RegisterPage::doRegistration);
}
void
RegisterPage::onBackButtonClicked()
{
emit backButtonClicked();
}
void
RegisterPage::showError(const QString &msg)
{
emit errorOccurred();
auto rect = QFontMetrics(font()).boundingRect(msg);
int width = rect.width();
int height = rect.height();
error_label_->setFixedHeight(qCeil(width / 200.0) * height);
error_label_->setText(msg);
}
void
RegisterPage::showError(QLabel *label, const QString &msg)
{
emit errorOccurred();
auto rect = QFontMetrics(font()).boundingRect(msg);
int width = rect.width();
int height = rect.height();
label->setFixedHeight((int)qCeil(width / 200.0) * height);
label->setText(msg);
label->show();
}
bool
RegisterPage::checkOneField(QLabel *label, const TextField *t_field, const QString &msg)
{
if (t_field->isValid()) {
label->hide();
return true;
} else {
showError(label, msg);
return false;
}
}
bool
RegisterPage::checkUsername()
{
return checkOneField(error_username_label_,
username_input_,
tr("The username must not be empty, and must contain only the "
"characters a-z, 0-9, ., _, =, -, and /."));
}
bool
RegisterPage::checkPassword()
{
return checkOneField(
error_password_label_, password_input_, tr("Password is not long enough (min 8 chars)"));
}
bool
RegisterPage::checkPasswordConfirmation()
{
if (password_input_->text() == password_confirmation_->text()) {
error_password_confirmation_label_->hide();
password_confirmation_->setValid(true);
return true;
} else {
showError(error_password_confirmation_label_, tr("Passwords don't match"));
password_confirmation_->setValid(false);
return false;
}
}
bool
RegisterPage::checkServer()
{
// This doesn't check that the server is reachable,
// just that the input is not obviously wrong.
return checkOneField(error_server_label_, server_input_, tr("Invalid server name"));
}
void
RegisterPage::onRegisterButtonClicked()
{
if (checkUsername() && checkPassword() && checkPasswordConfirmation() && checkServer()) {
auto server = server_input_->text().toStdString();
http::client()->set_server(server);
http::client()->verify_certificates(
!UserSettings::instance()->disableCertificateValidation());
// This starts a chain of `emit`s which ends up doing the
// registration. Signals are used rather than normal function
// calls so that the dialogs used in UIA work correctly.
//
// The sequence of events looks something like this:
//
// doKnownLookup
// v
// doVersionsCheck
// v
// doRegistration -> loops the UIAHandler until complete
emit wellKnownLookup();
emit registering();
}
}
void
RegisterPage::doWellKnownLookup()
{
http::client()->well_known(
[this](const mtx::responses::WellKnown &res, mtx::http::RequestErr err) {
if (err) {
if (err->status_code == 404) {
nhlog::net()->info("Autodiscovery: No .well-known.");
// Check that the homeserver can be reached
emit versionsCheck();
return;
}
if (!err->parse_error.empty()) {
emit serverError(tr("Autodiscovery failed. Received malformed response."));
nhlog::net()->error("Autodiscovery failed. Received malformed response.");
return;
}
emit serverError(tr("Autodiscovery failed. Unknown error when "
"requesting .well-known."));
nhlog::net()->error("Autodiscovery failed. Unknown error when "
"requesting .well-known. {} {}",
err->status_code,
err->error_code);
return;
}
nhlog::net()->info("Autodiscovery: Discovered '" + res.homeserver.base_url + "'");
http::client()->set_server(res.homeserver.base_url);
// Check that the homeserver can be reached
emit versionsCheck();
});
}
void
RegisterPage::doVersionsCheck()
{
// Make a request to /_matrix/client/versions to check the address
// given is a Matrix homeserver.
http::client()->versions([this](const mtx::responses::Versions &, mtx::http::RequestErr err) {
if (err) {
if (err->status_code == 404) {
emit serverError(tr("The required endpoints were not found. Possibly "
"not a Matrix server."));
return;
}
if (!err->parse_error.empty()) {
emit serverError(tr("Received malformed response. Make sure the homeserver "
"domain is valid."));
return;
}
emit serverError(tr("An unknown error occured. Make sure the "
"homeserver domain is valid."));
return;
}
// Attempt registration without an `auth` dict
emit registration();
});
}
void
RegisterPage::doRegistration()
{
// These inputs should still be alright, but check just in case
if (checkUsername() && checkPassword() && checkPasswordConfirmation()) {
auto username = username_input_->text().toStdString();
auto password = password_input_->text().toStdString();
connect(UIA::instance(), &UIA::error, this, [this](QString msg) {
showError(msg);
disconnect(UIA::instance(), &UIA::error, this, nullptr);
});
http::client()->registration(
username, password, ::UIA::instance()->genericHandler("Registration"), registrationCb());
}
}
mtx::http::Callback<mtx::responses::Register>
RegisterPage::registrationCb()
{
// Return a function to be used as the callback when an attempt at
// registration is made.
return [this](const mtx::responses::Register &res, mtx::http::RequestErr err) {
if (!err) {
http::client()->set_user(res.user_id);
http::client()->set_access_token(res.access_token);
emit registerOk();
disconnect(UIA::instance(), &UIA::error, this, nullptr);
return;
}
// The server requires registration flows.
if (err->status_code == 401) {
if (err->matrix_error.unauthorized.flows.empty()) {
nhlog::net()->warn("failed to retrieve registration flows: "
"status_code({}), matrix_error({}) ",
static_cast<int>(err->status_code),
err->matrix_error.error);
showError(QString::fromStdString(err->matrix_error.error));
}
return;
}
nhlog::net()->error("failed to register: status_code ({}), matrix_error({})",
static_cast<int>(err->status_code),
err->matrix_error.error);
showError(QString::fromStdString(err->matrix_error.error));
};
}
void
RegisterPage::paintEvent(QPaintEvent *)
{
QStyleOption opt;
opt.init(this);
QPainter p(this);
style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
}
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