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/*
SPDX-FileCopyrightText: 2023 Janet Blackquill <uhhadd@gmail.com>
SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
*/
#include <QDebug>
#include <algorithm>
#include "kscreenlocker_greet_logging.h"
#include "pamauthenticator.h"
#include "pamauthenticators.h"
struct PamAuthenticators::Private {
std::unique_ptr<PamAuthenticator> interactive;
std::vector<std::unique_ptr<PamAuthenticator>> noninteractive;
PamAuthenticator::NoninteractiveAuthenticatorTypes computedTypes = PamAuthenticator::NoninteractiveAuthenticatorType::None;
AuthenticatorsState state = AuthenticatorsState::Idle;
bool graceLocked = false;
bool hadPrompt = false;
void recomputeNoninteractiveAuthenticationTypes()
{
PamAuthenticator::NoninteractiveAuthenticatorTypes result = PamAuthenticator::NoninteractiveAuthenticatorType::None;
for (auto &&noninteractive : noninteractive) {
if (noninteractive->isAvailable()) {
result |= noninteractive->authenticatorType();
}
}
computedTypes = result;
}
void cancelNoninteractive()
{
for (auto &&noninteractive : noninteractive) {
noninteractive->cancel();
}
}
};
PamAuthenticators::PamAuthenticators(std::unique_ptr<PamAuthenticator> &&interactive,
std::vector<std::unique_ptr<PamAuthenticator>> &&noninteractive,
QObject *parent)
: QObject(parent)
, d(new Private{std::move(interactive), std::move(noninteractive)})
{
connect(d->interactive.get(), &PamAuthenticator::succeeded, this, [this] {
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: Success from interactive authenticator" << qUtf8Printable(d->interactive->service());
Q_EMIT succeeded();
});
connect(d->interactive.get(), &PamAuthenticator::failed, this, [this] {
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: Failure from interactive authenticator" << qUtf8Printable(d->interactive->service());
setState(AuthenticatorsState::Idle);
d->cancelNoninteractive();
Q_EMIT failed(PamAuthenticator::NoninteractiveAuthenticatorType::None, d->interactive.get());
});
connect(d->interactive.get(), &PamAuthenticator::loginFailedDelayStarted, this, [this](const uint uSecDelay) noexcept -> void {
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: Delay started on login failure for interactive authenticator" << qUtf8Printable(d->interactive->service())
<< "duration:" << uSecDelay;
Q_EMIT loginFailedDelayStarted(PamAuthenticator::NoninteractiveAuthenticatorType::None, d->interactive.get(), uSecDelay);
});
for (auto &&noninteractive : d->noninteractive) {
connect(noninteractive.get(), &PamAuthenticator::succeeded, this, [this, &noninteractive] {
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: Success from non-interactive authenticator" << qUtf8Printable(noninteractive->service());
Q_EMIT succeeded();
});
connect(noninteractive.get(), &PamAuthenticator::availableChanged, this, [this, &noninteractive] {
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: Availability changed for non-interactive authenticator"
<< qUtf8Printable(noninteractive->service()) << noninteractive->isAvailable();
d->recomputeNoninteractiveAuthenticationTypes();
Q_EMIT authenticatorTypesChanged();
});
connect(noninteractive.get(), &PamAuthenticator::failed, this, [this, &noninteractive] {
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: Non-interactive authenticator" << qUtf8Printable(noninteractive->service()) << "failed";
Q_EMIT failed(noninteractive->authenticatorType(), noninteractive.get());
});
connect(noninteractive.get(), &PamAuthenticator::loginFailedDelayStarted, this, [this, &noninteractive](const uint uSecDelay) noexcept -> void {
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: Delay started on login failure for non-interactive authenticator" << qUtf8Printable(noninteractive->service())
<< "duration:" << uSecDelay;
Q_EMIT loginFailedDelayStarted(noninteractive->authenticatorType(), noninteractive.get(), uSecDelay);
});
connect(noninteractive.get(), &PamAuthenticator::infoMessage, this, [this, &noninteractive]() {
if (!d->hadPrompt) {
d->hadPrompt = true;
Q_EMIT hadPromptChanged();
}
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: Info message from non-interactive authenticator" << qUtf8Printable(noninteractive->service());
Q_EMIT noninteractiveInfo(noninteractive->authenticatorType(), noninteractive.get());
});
connect(noninteractive.get(), &PamAuthenticator::errorMessage, this, [this, &noninteractive]() {
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: Error message from non-interactive authenticator " << qUtf8Printable(noninteractive->service());
Q_EMIT noninteractiveError(noninteractive->authenticatorType(), noninteractive.get());
});
}
// connect the delegated signals
connect(d->interactive.get(), &PamAuthenticator::busyChanged, this, [this] {
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: Interactive authenticator" << qUtf8Printable(d->interactive->service()) << "changed business";
Q_EMIT busyChanged();
});
connect(d->interactive.get(), &PamAuthenticator::prompt, this, [this] {
if (!d->hadPrompt) {
d->hadPrompt = true;
Q_EMIT hadPromptChanged();
}
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: Normal prompt from interactive authenticator" << qUtf8Printable(d->interactive->service());
Q_EMIT promptChanged();
});
connect(d->interactive.get(), &PamAuthenticator::promptForSecret, this, [this] {
if (!d->hadPrompt) {
d->hadPrompt = true;
Q_EMIT hadPromptChanged();
}
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: Secret prompt from interactive authenticator" << qUtf8Printable(d->interactive->service());
Q_EMIT promptForSecretChanged();
});
connect(d->interactive.get(), &PamAuthenticator::infoMessage, this, [this] {
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: Info message from interactive authenticator" << qUtf8Printable(d->interactive->service());
Q_EMIT infoMessageChanged();
});
connect(d->interactive.get(), &PamAuthenticator::errorMessage, this, [this] {
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: Error message from interactive authenticator" << qUtf8Printable(d->interactive->service());
Q_EMIT errorMessageChanged();
});
}
PamAuthenticators::~PamAuthenticators()
{
}
bool PamAuthenticators::isUnlocked() const
{
return d->interactive->isUnlocked() || std::any_of(d->noninteractive.cbegin(), d->noninteractive.cend(), [](auto &&t) {
return t->isUnlocked();
});
}
PamAuthenticators::AuthenticatorsState PamAuthenticators::state() const
{
return d->state;
}
void PamAuthenticators::startAuthenticating()
{
if (d->state == AuthenticatorsState::Authenticating || d->graceLocked) {
return;
}
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: starting authenticators";
d->interactive->tryUnlock();
for (auto &&noninteractive : d->noninteractive) {
noninteractive->tryUnlock();
}
setState(AuthenticatorsState::Authenticating);
}
void PamAuthenticators::stopAuthenticating()
{
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: stopping authenticators";
for (auto &&noninteractive : d->noninteractive) {
noninteractive->cancel();
}
d->interactive->cancel();
setState(AuthenticatorsState::Idle);
}
void PamAuthenticators::setState(AuthenticatorsState state)
{
if (d->state == state) {
return;
}
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: state changing from" << d->state << "to" << state;
d->state = state;
Q_EMIT stateChanged();
}
// these properties are delegated to interactive authenticator
bool PamAuthenticators::isBusy() const
{
return d->interactive->isBusy();
}
QString PamAuthenticators::prompt() const
{
return d->interactive->getPrompt();
}
QString PamAuthenticators::promptForSecret() const
{
return d->interactive->getPromptForSecret();
}
QString PamAuthenticators::infoMessage() const
{
return d->interactive->getInfoMessage();
}
QString PamAuthenticators::errorMessage() const
{
return d->interactive->getErrorMessage();
}
void PamAuthenticators::respond(const QByteArray &response)
{
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: responding to interactive authenticator";
return d->interactive->respond(response);
}
void PamAuthenticators::cancel()
{
qCDebug(KSCREENLOCKER_GREET) << "PamAuthenticators: cancelling interactive authenticator";
return d->interactive->cancel();
}
PamAuthenticator::NoninteractiveAuthenticatorTypes PamAuthenticators::authenticatorTypes() const
{
return d->computedTypes;
}
void PamAuthenticators::setGraceLocked(bool b)
{
d->graceLocked = b;
}
bool PamAuthenticators::hadPrompt() const
{
return d->hadPrompt;
}
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