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 /* This file is part of the KDE project
     Copyright 2010 David Faure <faure@kde.org>
     Copyright 2012 Dawit Alemayehu <adawit@kde.org>
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License or ( at
    your option ) version 3 or, at the discretion of KDE e.V. ( which shall
    act as a proxy as in section 14 of the GPLv3 ), any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
    Boston, MA 02110-1301, USA.
 */
 
 #include <kpassworddialog.h>
 #include <QApplication>
 #include <kpasswdserver.h>
 #include <QTest>
 #include <QSignalSpy>
 
 static const char* sigQueryAuthInfoResult = SIGNAL(queryAuthInfoAsyncResult(qlonglong,qlonglong,KIO::AuthInfo));
 static const char* sigCheckAuthInfoResult = SIGNAL(checkAuthInfoAsyncResult(qlonglong,qlonglong,KIO::AuthInfo));
 
 // For the retry dialog (and only that one)
 static QDialogButtonBox::StandardButton s_buttonYes = QDialogButtonBox::Yes;
 static QDialogButtonBox::StandardButton s_buttonCancel = QDialogButtonBox::Cancel;
 
 Q_DECLARE_METATYPE(QDialogButtonBox::StandardButton)
 Q_DECLARE_METATYPE(QDialog::DialogCode)
 
 static QString getUserNameFrom(const KIO::AuthInfo& auth)
 {
     if (auth.username.isEmpty() && !auth.url.userName().isEmpty()) {
         return auth.url.userName();
     }
 
     return auth.username;
 }
 
 class KPasswdServerTest : public QObject
 {
     Q_OBJECT
 
 private Q_SLOTS:
     void initTestCase()
     {
         qRegisterMetaType<QDialogButtonBox::StandardButton>();
         qRegisterMetaType<QDialog::DialogCode>();
     }
 
     void simpleTest()
     {
         KPasswdServer server(this);
         server.setWalletDisabled(true);
 
         // Check that processRequest doesn't crash when it has nothing to do
         server.processRequest();
 
         KIO::AuthInfo info;
         info.url = QUrl(QStringLiteral("http://www.example.com"));
 
         // Make a check for that host, should say "not found"
         QVERIFY(noCheckAuth(server, info));
 
         // Now add auth to the cache
         const qlonglong windowId = 42;
         KIO::AuthInfo realInfo = info;
         realInfo.username = QStringLiteral("toto"); // you can see I'm french
         realInfo.password = QStringLiteral("foobar");
         server.addAuthInfo(realInfo, windowId); // seqnr=2
 
         // queryAuth without the ability to prompt, will just return info unmodified
         KIO::AuthInfo resultInfo;
         queryAuth(server, info, resultInfo);
         QCOMPARE(resultInfo.url, info.url);
         QCOMPARE(resultInfo.username, QString());
         QCOMPARE(resultInfo.password, QString());
         QCOMPARE(resultInfo.isModified(), false);
 
         // Check that checkAuth finds it
         QVERIFY(successCheckAuth(server, info, realInfo));
 
         // Now remove auth
         server.removeAuthInfo(info.url.host(), info.url.scheme(), info.username);
         // Check we can't find that auth anymore
         QVERIFY(noCheckAuth(server, info));
     }
 
     void testCheckDuringQuery()
     {
         KPasswdServer server(this);
         server.setWalletDisabled(true);
         KIO::AuthInfo info;
         info.url = QUrl(QStringLiteral("http://www.kde.org"));
 
         // Start a query
         QSignalSpy spyQuery(&server, sigQueryAuthInfoResult);
         const qlonglong windowId = 42;
         const qlonglong seqNr = 2;
         const qlonglong id = server.queryAuthInfoAsync(
             info,
             QStringLiteral("<NoAuthPrompt>"), // magic string to avoid a dialog
             windowId, seqNr, 16 /*usertime*/);
 
         // Before it is processed, do a check, it will reply delayed.
         QSignalSpy spyCheck(&server, sigCheckAuthInfoResult);
         const qlonglong idCheck = server.checkAuthInfoAsync(info, windowId, 17 /*usertime*/);
         QCOMPARE(idCheck, 0LL); // always
         QCOMPARE(spyCheck.count(), 0); // no reply yet
 
         // Wait for the query to be processed
         QVERIFY(QSignalSpy(&server, sigQueryAuthInfoResult).wait(1000));
         QCOMPARE(spyQuery.count(), 1);
         QCOMPARE(spyQuery[0][0].toLongLong(), id);
         KIO::AuthInfo result = spyQuery[0][2].value<KIO::AuthInfo>();
 
         // Now the check will have replied
         QCOMPARE(spyCheck.count(), 1);
         QCOMPARE(spyCheck[0][0].toLongLong(), id+1); // it was the next request after the query
         KIO::AuthInfo resultCheck = spyCheck[0][2].value<KIO::AuthInfo>();
         QCOMPARE(result.username, resultCheck.username);
         QCOMPARE(result.password, resultCheck.password);
     }
 
     void testExpiry()
     {
         KPasswdServer server(this);
         server.setWalletDisabled(true);
         KIO::AuthInfo info;
         info.url = QUrl(QStringLiteral("http://www.example.com"));
 
         // Add auth to the cache
         const qlonglong windowId = 42;
         KIO::AuthInfo realInfo = info;
         realInfo.username = QStringLiteral("toto");
         realInfo.password = QStringLiteral("foobar");
         server.addAuthInfo(realInfo, windowId);
 
         QVERIFY(successCheckAuth(server, info, realInfo));
 
         // Close another window, shouldn't hurt
         server.removeAuthForWindowId(windowId + 1);
         QVERIFY(successCheckAuth(server, info, realInfo));
 
         // Close window
         server.removeAuthForWindowId(windowId);
 
         // Check we can't find that auth anymore
         QVERIFY(noCheckAuth(server, info));
     }
 
     void testFillDialog()
     {
         KPasswdServer server(this);
         server.setWalletDisabled(true);
         // What the app would ask
         KIO::AuthInfo info;
         info.url = QUrl(QStringLiteral("http://www.example.com"));
 
         // What the user would type
         KIO::AuthInfo filledInfo(info);
         filledInfo.username = QStringLiteral("dfaure");
         filledInfo.password = QStringLiteral("toto");
 
         KIO::AuthInfo result;
         queryAuthWithDialog(server, info, filledInfo, result);
     }
 
     void testRejectRetryDialog()
     {
         KPasswdServer server(this);
         server.setWalletDisabled(true);
 
        // What the app would ask
         KIO::AuthInfo info;
         info.url = QUrl(QStringLiteral("http://www.example.com"));
 
         // What the user would type
         KIO::AuthInfo filledInfo(info);
         filledInfo.username = QStringLiteral("username");
         filledInfo.password = QStringLiteral("password");
 
         KIO::AuthInfo result;
         queryAuthWithDialog(server, info, filledInfo, result);
 
         // Pretend that the returned credentials failed and initiate a retry,
         // but cancel the retry dialog.
         info.password.clear();
         result = KIO::AuthInfo();
         queryAuthWithDialog(server, info, filledInfo, result, s_buttonCancel, QDialog::Accepted /*unused*/, QStringLiteral("Invalid username or password"));
     }
 
     void testAcceptRetryDialog()
     {
         KPasswdServer server(this);
         server.setWalletDisabled(true);
 
        // What the app would ask
         KIO::AuthInfo info;
         info.url = QUrl(QStringLiteral("http://www.example.com"));
 
         // What the user would type
         KIO::AuthInfo filledInfo(info);
         filledInfo.username = QStringLiteral("username");
         filledInfo.password = QStringLiteral("password");
 
         KIO::AuthInfo result;
         queryAuthWithDialog(server, info, filledInfo, result);
 
         // Pretend that the returned credentials failed and initiate a retry,
         // but this time continue the retry.
         info.password.clear();
         result = KIO::AuthInfo();
 
         queryAuthWithDialog(server, info, filledInfo, result, s_buttonYes, QDialog::Accepted, QStringLiteral("Invalid username or password"));
     }
 
     void testUsernameMistmatch()
     {
         KPasswdServer server(this);
         server.setWalletDisabled(true);
 
         // What the app would ask. Note the username in the URL.
         KIO::AuthInfo info;
         info.url = QUrl(QStringLiteral("http://foo@www.example.com"));
 
         // What the user would type
         KIO::AuthInfo filledInfo(info);
         filledInfo.username = QStringLiteral("bar");
         filledInfo.password = QStringLiteral("blah");
 
         KIO::AuthInfo result;
         queryAuthWithDialog(server, info, filledInfo, result);
 
         // Check the returned url does not match the request url because of the
         // username mismatch between the request URL and the filled in one.
         QVERIFY(result.url != filledInfo.url);
 
         // Verify there is NO cached auth data if the request URL contains the
         // original user name (foo).
         QVERIFY(noCheckAuth(server, info));
 
         // Verify there is a cached auth data if the request URL contains the
         // new user name (bar).
         filledInfo.url = QUrl(QStringLiteral("http://bar@www.example.com"));
         QVERIFY(successCheckAuth(server, filledInfo, result));
 
         // Now the URL check should be valid too.
         QCOMPARE(result.url, filledInfo.url);
     }
 
     void testCancelPasswordDialog()
     {
         KPasswdServer server(this);
         server.setWalletDisabled(true);
 
         // What the app would ask.
         KIO::AuthInfo info;
         info.url = QUrl(QStringLiteral("http://www.example.com"));
         info.username = info.url.userName();
 
         KIO::AuthInfo result;
         queryAuthWithDialog(server, info, KIO::AuthInfo(), result, QDialogButtonBox::NoButton, QDialog::Rejected);
     }
 
     void testVerifyPath()
     {
         KPasswdServer server(this);
         server.setWalletDisabled(true);
 
         // Add auth to the cache
         const qlonglong windowId = 42;
         KIO::AuthInfo authInfo;
         authInfo.url = QUrl(QStringLiteral("http://www.example.com/test/test.html"));
         authInfo.username = QStringLiteral("toto");
         authInfo.password = QStringLiteral("foobar");
         server.addAuthInfo(authInfo, windowId);
 
         KIO::AuthInfo queryAuthInfo;
         queryAuthInfo.url = QUrl(QStringLiteral("http://www.example.com/test/test2/test.html"));
         queryAuthInfo.verifyPath = true;
 
         KIO::AuthInfo expectedAuthInfo;
         expectedAuthInfo.username = QStringLiteral("toto");
         expectedAuthInfo.password = QStringLiteral("foobar");
 
         QVERIFY(successCheckAuth(server, queryAuthInfo, expectedAuthInfo));
     }
 
     void testConcurrentQueryAuth()
     {
         KPasswdServer server(this);
         server.setWalletDisabled(true);
 
         QList<KIO::AuthInfo> authInfos;
         for (int i=0; i < 10; ++i) {
            KIO::AuthInfo info;
            info.url = QUrl(QLatin1String("http://www.example.com/test") + QString::number(i) + QLatin1String(".html"));
            authInfos << info;
         }
 
         // What the user would type
         KIO::AuthInfo filledInfo;
         filledInfo.username = QStringLiteral("bar");
         filledInfo.password = QStringLiteral("blah");
 
         QList<KIO::AuthInfo> results;
         concurrentQueryAuthWithDialog(server, authInfos, filledInfo, results);
     }
 
     void testConcurrentCheckAuth()
     {
         KPasswdServer server(this);
         server.setWalletDisabled(true);
 
         QList<KIO::AuthInfo> authInfos;
         for (int i=0; i < 10; ++i) {
            KIO::AuthInfo info;
            info.url = QUrl(QLatin1String("http://www.example.com/test") + QString::number(i) + QStringLiteral(".html"));
            authInfos << info;
         }
 
         // What the user would type
         KIO::AuthInfo filledInfo;
         filledInfo.username = QStringLiteral("bar");
         filledInfo.password = QStringLiteral("blah");
 
         QList<KIO::AuthInfo> results;
         concurrentQueryAuthWithDialog(server, authInfos, filledInfo, results);
     }
 
 private:
     // Checks that no auth is available for @p info
     bool noCheckAuth(KPasswdServer& server, const KIO::AuthInfo& info)
     {
         KIO::AuthInfo result;
         checkAuth(server, info, result);
         return (result.username == info.username)
             && (result.password == info.password)
             && !result.isModified();
     }
 
     // Check that the auth is available and equal to @expectedInfo
     bool successCheckAuth(KPasswdServer& server, const KIO::AuthInfo& info, const KIO::AuthInfo& expectedInfo)
     {
         KIO::AuthInfo result;
         checkAuth(server, info, result);
         return (result.username == expectedInfo.username)
             && (result.password == expectedInfo.password)
             && result.isModified();
     }
 
     void checkAuth(KPasswdServer& server, const KIO::AuthInfo& info, KIO::AuthInfo& result)
     {
         QSignalSpy spy(&server, sigCheckAuthInfoResult);
         const qlonglong windowId = 42;
         const qlonglong id = server.checkAuthInfoAsync(info, windowId, 17 /*usertime*/);
         QCOMPARE(id, 0LL); // always
         if (spy.isEmpty()) {
             QVERIFY(QSignalSpy(&server, sigCheckAuthInfoResult).wait(1000));
         }
         QCOMPARE(spy.count(), 1);
         // kpasswdserver emits a requestId via dbus, we can't get that id here
         QVERIFY(spy[0][0].toLongLong() >= 0);
         //QCOMPARE(spy[0][1].toLongLong(), 3LL); // seqNr
         result = spy[0][2].value<KIO::AuthInfo>();
     }
 
     void queryAuth(KPasswdServer& server, const KIO::AuthInfo& info, KIO::AuthInfo& result)
     {
         QSignalSpy spy(&server, sigQueryAuthInfoResult);
         const qlonglong windowId = 42;
         const qlonglong seqNr = 2;
         const qlonglong id = server.queryAuthInfoAsync(
             info,
             QStringLiteral("<NoAuthPrompt>"), // magic string to avoid a dialog
             windowId, seqNr, 16 /*usertime*/);
         QVERIFY(id >= 0); // requestId, ever increasing
         if (spy.isEmpty())
             QVERIFY(QSignalSpy(&server, sigQueryAuthInfoResult).wait(1000));
         QCOMPARE(spy.count(), 1);
         QCOMPARE(spy[0][0].toLongLong(), id);
         //QCOMPARE(spy[0][1].toLongLong(), 3LL); // seqNr
         result = spy[0][2].value<KIO::AuthInfo>();
     }
 
     void queryAuthWithDialog(KPasswdServer& server, const KIO::AuthInfo& info,
                              const KIO::AuthInfo& filledInfo, KIO::AuthInfo& result,
                              QDialogButtonBox::StandardButton retryButton = s_buttonYes,
                              QDialog::DialogCode code = QDialog::Accepted,
                              const QString& errMsg = QString())
     {
         QSignalSpy spy(&server, sigQueryAuthInfoResult);
         const qlonglong windowId = 42;
         const qlonglong seqNr = 2;
         const qlonglong id = server.queryAuthInfoAsync(
             info,
             errMsg,
             windowId, seqNr, 16 /*usertime*/);
         QVERIFY(id >= 0); // requestId, ever increasing
         QVERIFY(spy.isEmpty());
 
         const bool hasErrorMessage = (!errMsg.isEmpty());
         const bool isCancelRetryDialogTest = (hasErrorMessage && retryButton == s_buttonCancel);
 
         if (hasErrorMessage) {
             // Retry dialog only knows Yes/No
             QMetaObject::invokeMethod(this, "checkRetryDialog",
                                       Qt::QueuedConnection, Q_ARG(QDialogButtonBox::StandardButton, retryButton));
         }
 
         if (!isCancelRetryDialogTest) {
             QMetaObject::invokeMethod(this, "checkAndFillDialog", Qt::QueuedConnection,
                                       Q_ARG(KIO::AuthInfo, info),
                                       Q_ARG(KIO::AuthInfo, filledInfo),
                                       Q_ARG(QDialog::DialogCode, code ));
         }
         // Force KPasswdServer to process the request now, otherwise the checkAndFillDialog needs a timer too...
         server.processRequest();
         if (spy.isEmpty())
             QVERIFY(QSignalSpy(&server, sigQueryAuthInfoResult).wait(1000));
         QCOMPARE(spy.count(), 1);
         QCOMPARE(spy[0][0].toLongLong(), id);
         //QCOMPARE(spy[0][1].toLongLong(), 3LL); // seqNr
         result = spy[0][2].value<KIO::AuthInfo>();
         const QString username = (isCancelRetryDialogTest ? QString() : filledInfo.username);
         const QString password = (isCancelRetryDialogTest ? QString() : filledInfo.password);
         QCOMPARE(result.username, username);
         QCOMPARE(result.password, password);
         QCOMPARE(result.isModified(), retryButton == s_buttonYes && code  == QDialog::Accepted);
     }
 
     void concurrentQueryAuthWithDialog(KPasswdServer& server, const QList<KIO::AuthInfo>& infos,
                                        const KIO::AuthInfo& filledInfo, QList<KIO::AuthInfo>& results,
                                        QDialog::DialogCode code = QDialog::Accepted)
     {
         QSignalSpy spy(&server, sigQueryAuthInfoResult);
         const qlonglong windowId = 42;
         qlonglong seqNr = 0;
         QList<qlonglong> idList;
 
         for (const KIO::AuthInfo& info : infos) {
             const qlonglong id = server.queryAuthInfoAsync(
                 info,
                 QString(),
                 windowId, seqNr, 16 /*usertime*/);
             QVERIFY(id >= 0); // requestId, ever increasing
             idList << id;
         }
 
         QVERIFY(spy.isEmpty());
         QMetaObject::invokeMethod(this, "checkAndFillDialog", Qt::QueuedConnection,
                                   Q_ARG(KIO::AuthInfo, infos.first()),
                                   Q_ARG(KIO::AuthInfo,filledInfo),
                                   Q_ARG(QDialog::DialogCode, code));
 
         // Force KPasswdServer to process the request now, otherwise the checkAndFillDialog needs a timer too...
         server.processRequest();
         while (spy.count() < infos.count())
             QVERIFY(QSignalSpy(&server, sigQueryAuthInfoResult).wait(1000));
 
         QCOMPARE(spy.count(), infos.count());
 
         for(int i = 0, count = spy.count(); i < count; ++i) {
             QCOMPARE(spy[i][0].toLongLong(), idList.at(i));
             //QCOMPARE(spy[0][1].toLongLong(), 3LL); // seqNr
             KIO::AuthInfo result = spy[i][2].value<KIO::AuthInfo>();
             QCOMPARE(result.username, filledInfo.username);
             QCOMPARE(result.password, filledInfo.password);
             QCOMPARE(result.isModified(), code == QDialog::Accepted);
             results << result;
         }
     }
 
     void concurrentCheckAuthWithDialog(KPasswdServer& server, const QList<KIO::AuthInfo>& infos,
                                        const KIO::AuthInfo& filledInfo, QList<KIO::AuthInfo>& results,
                                        QDialog::DialogCode code = QDialog::Accepted)
     {
         QSignalSpy spy(&server, sigQueryAuthInfoResult);
         const qlonglong windowId = 42;
         qlonglong seqNr = 0;
         QList<qlonglong> idList;
 
         QListIterator<KIO::AuthInfo> it (infos);
         if (it.hasNext()) {
             const qlonglong id = server.queryAuthInfoAsync(
                 it.next(),
                 QString(),
                 windowId, seqNr, 16 /*usertime*/);
             QVERIFY(id >= 0); // requestId, ever increasing
             idList << id;
         }
 
         while (it.hasNext()) {
             const qlonglong id = server.checkAuthInfoAsync(it.next(), windowId,16 /*usertime*/);
             QVERIFY(id >= 0); // requestId, ever increasing
             idList << id;
         }
 
         QVERIFY(spy.isEmpty());
         QMetaObject::invokeMethod(this, "checkAndFillDialog", Qt::QueuedConnection,
                                   Q_ARG(KIO::AuthInfo, infos.first()),
                                   Q_ARG(KIO::AuthInfo,filledInfo),
                                   Q_ARG(QDialog::DialogCode, code));
 
         // Force KPasswdServer to process the request now, otherwise the checkAndFillDialog needs a timer too...
         server.processRequest();
         if (spy.isEmpty()) {
             QVERIFY(QSignalSpy(&server, sigQueryAuthInfoResult).wait(1000));
         }
 
         while ((spy.count()-1) < infos.count()) {
             QVERIFY(QSignalSpy(&server, sigCheckAuthInfoResult).wait(1000));
         }
 
         for(int i = 0, count = spy.count(); i < count; ++i) {
             QCOMPARE(spy[i][0].toLongLong(), idList.at(i));
             //QCOMPARE(spy[0][1].toLongLong(), 3LL); // seqNr
             KIO::AuthInfo result = spy[i][2].value<KIO::AuthInfo>();
             QCOMPARE(result.username, filledInfo.username);
             QCOMPARE(result.password, filledInfo.password);
             QCOMPARE(result.isModified(), code == QDialog::Accepted);
             results << result;
         }
     }
 
 protected Q_SLOTS:
     void checkAndFillDialog(const KIO::AuthInfo& info, const KIO::AuthInfo& filledInfo, QDialog::DialogCode code)
     {
         Q_FOREACH(QWidget *widget, QApplication::topLevelWidgets()) {
             if (KPasswordDialog* dialog = qobject_cast<KPasswordDialog *>(widget)) {
                 if (code == QDialog::Accepted) {
                     QCOMPARE(dialog->username(), getUserNameFrom(info));
                     QCOMPARE(dialog->password(), info.password);
                     dialog->setUsername(filledInfo.username);
                     dialog->setPassword(filledInfo.password);
                 }
                 dialog->done(code);
                 return;
             }
         }
         qWarning() << "No KPasswordDialog found!";
     }
 
     void checkRetryDialog(QDialogButtonBox::StandardButton code = s_buttonYes)
     {
         Q_FOREACH(QWidget *widget, QApplication::topLevelWidgets()) {
             QDialog* dialog = qobject_cast<QDialog*>(widget);
             if (dialog && !dialog->inherits("KPasswordDialog")) {
                 dialog->done(code);
                 return;
             }
         }
         qWarning() << "No retry dialog found";
     }
 };
 
 QTEST_MAIN( KPasswdServerTest )
 
 #include "kpasswdservertest.moc"