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#include <QtTest/QtTest>

#include <qsslcertificate.h>

#include <qsslkey.h>

#include <qsslsocket.h>

#ifdef Q_OS_SYMBIAN

// In Symbian OS test data is located in applications private dir

// Current path (C:\private\<UID>) contains only ascii chars

#define SRCDIR "./"

#endif

class tst_QSslCertificate : public QObject

{

    Q_OBJECT

    struct CertInfo {

        QFileInfo fileInfo;

        QFileInfo fileInfo_digest_md5;

        QFileInfo fileInfo_digest_sha1;

        QSsl::EncodingFormat format;

        CertInfo(const QFileInfo &fileInfo, QSsl::EncodingFormat format)

            : fileInfo(fileInfo), format(format) {}

    };

    QList<CertInfo> certInfoList;

    QMap<QString, QString> subjAltNameMap;

    QMap<QString, QString> pubkeyMap;

    QMap<QString, QString> md5Map;

    QMap<QString, QString> sha1Map;

    void createTestRows();

#ifndef QT_NO_OPENSSL

    void compareCertificates(const QSslCertificate & cert1, const QSslCertificate & cert2);

#endif

    QString oldCurrentDir;

public:

    tst_QSslCertificate();

    virtual ~tst_QSslCertificate();

public slots:

    void initTestCase_data();

    void init();

    void cleanup();

#ifndef QT_NO_OPENSSL

private slots:

    void emptyConstructor();

    void constructor_data();

    void constructor();

    void constructingGarbage();

    void copyAndAssign_data();

    void copyAndAssign();

    void digest_data();

    void digest();

    void alternateSubjectNames_data();

    void alternateSubjectNames();

    void publicKey_data();

    void publicKey();

    void toPemOrDer_data();

    void toPemOrDer();

    void fromDevice();

    void fromPath_data();

    void fromPath();

    void certInfo();

    void task256066toPem();

    void nulInCN();

    void nulInSan();

// ### add tests for certificate bundles (multiple certificates concatenated into a single

//     structure); both PEM and DER formatted

#endif

};

tst_QSslCertificate::tst_QSslCertificate()

{

    QDir dir(SRCDIR + QLatin1String("/certificates"));

    QFileInfoList fileInfoList = dir.entryInfoList(QDir::Files | QDir::Readable);

    QRegExp rxCert(QLatin1String("^.+\\.(pem|der)$"));

    QRegExp rxSan(QLatin1String("^(.+\\.(?:pem|der))\\.san$"));

    QRegExp rxPubKey(QLatin1String("^(.+\\.(?:pem|der))\\.pubkey$"));

    QRegExp rxDigest(QLatin1String("^(.+\\.(?:pem|der))\\.digest-(md5|sha1)$"));

    foreach (QFileInfo fileInfo, fileInfoList) {

        if (rxCert.indexIn(fileInfo.fileName()) >= 0)

            certInfoList <<

                CertInfo(fileInfo,

                         rxCert.cap(1) == QLatin1String("pem") ? QSsl::Pem : QSsl::Der);

        if (rxSan.indexIn(fileInfo.fileName()) >= 0)

            subjAltNameMap.insert(rxSan.cap(1), fileInfo.absoluteFilePath());

        if (rxPubKey.indexIn(fileInfo.fileName()) >= 0)

            pubkeyMap.insert(rxPubKey.cap(1), fileInfo.absoluteFilePath());

        if (rxDigest.indexIn(fileInfo.fileName()) >= 0) {

            if (rxDigest.cap(2) == QLatin1String("md5"))

                md5Map.insert(rxDigest.cap(1), fileInfo.absoluteFilePath());

            else

                sha1Map.insert(rxDigest.cap(1), fileInfo.absoluteFilePath());

        }

    }

}

tst_QSslCertificate::~tst_QSslCertificate()

{

}

void tst_QSslCertificate::initTestCase_data()

{

}

void tst_QSslCertificate::init()

{

    QString srcdir(QLatin1String(SRCDIR));

    if (!srcdir.isEmpty()) {

        oldCurrentDir = QDir::current().absolutePath();

        QDir::setCurrent(srcdir);

    }

}

void tst_QSslCertificate::cleanup()

{

    if (!oldCurrentDir.isEmpty()) {

        QDir::setCurrent(oldCurrentDir);

    }

}

static QByteArray readFile(const QString &absFilePath)

{

    QFile file(absFilePath);

    if (!file.open(QIODevice::ReadOnly)) {

        QWARN("failed to open file");

        return QByteArray();

    }

    return file.readAll();

}

#ifndef QT_NO_OPENSSL

void tst_QSslCertificate::emptyConstructor()

{

    if (!QSslSocket::supportsSsl())

        return;

    QSslCertificate certificate;

    QVERIFY(certificate.isNull());

    //make sure none of the functions crash  (task 203035)

    QVERIFY(!certificate.isValid());

    QCOMPARE(certificate.version() , QByteArray());

    QCOMPARE(certificate.serialNumber(), QByteArray());

    QCOMPARE(certificate.digest(), QCryptographicHash::hash(QByteArray(), QCryptographicHash::Md5));

    QCOMPARE(certificate.issuerInfo(QSslCertificate::Organization), QString());

    QCOMPARE(certificate.subjectInfo(QSslCertificate::Organization), QString());

    QCOMPARE(certificate.alternateSubjectNames(),(QMultiMap<QSsl::AlternateNameEntryType, QString>()));

#ifndef QT_NO_TEXTSTREAM

    QCOMPARE(certificate.effectiveDate(), QDateTime());

    QCOMPARE(certificate.expiryDate(), QDateTime());

#endif

}

Q_DECLARE_METATYPE(QSsl::EncodingFormat);

void tst_QSslCertificate::createTestRows()

{

    QTest::addColumn<QString>("absFilePath");

    QTest::addColumn<QSsl::EncodingFormat>("format");

    foreach (CertInfo certInfo, certInfoList) {

        QTest::newRow(certInfo.fileInfo.fileName().toLatin1())

            << certInfo.fileInfo.absoluteFilePath() << certInfo.format;

    }

}

void tst_QSslCertificate::constructor_data()

{

    createTestRows();

}

void tst_QSslCertificate::constructor()

{

    if (!QSslSocket::supportsSsl())

        return;

    QFETCH(QString, absFilePath);

    QFETCH(QSsl::EncodingFormat, format);

    QByteArray encoded = readFile(absFilePath);

    QSslCertificate certificate(encoded, format);

    QVERIFY(!certificate.isNull());

}

void tst_QSslCertificate::constructingGarbage()

{

    if (!QSslSocket::supportsSsl())

        return;

    QByteArray garbage("garbage");

    QSslCertificate certificate(garbage);

    QVERIFY(certificate.isNull());

}

void tst_QSslCertificate::copyAndAssign_data()

{

    createTestRows();

}

void tst_QSslCertificate::compareCertificates(

    const QSslCertificate & cert1, const QSslCertificate & cert2)

{

    QCOMPARE(cert1.isNull(), cert2.isNull());

    // Note: in theory, the next line could fail even if the certificates are identical!

    QCOMPARE(cert1.isValid(), cert2.isValid());

    QCOMPARE(cert1.version(), cert2.version());

    QCOMPARE(cert1.serialNumber(), cert2.serialNumber());

    QCOMPARE(cert1.digest(), cert2.digest());

    QCOMPARE(cert1.toPem(), cert2.toPem());

    QCOMPARE(cert1.toDer(), cert2.toDer());

    for (int info = QSslCertificate::Organization;

         info <= QSslCertificate::StateOrProvinceName; info++) {

        const QSslCertificate::SubjectInfo subjectInfo = (QSslCertificate::SubjectInfo)info;

        QCOMPARE(cert1.issuerInfo(subjectInfo), cert2.issuerInfo(subjectInfo));

        QCOMPARE(cert1.subjectInfo(subjectInfo), cert2.subjectInfo(subjectInfo));

    }

    QCOMPARE(cert1.alternateSubjectNames(), cert2.alternateSubjectNames());

    QCOMPARE(cert1.effectiveDate(), cert2.effectiveDate());

    QCOMPARE(cert1.expiryDate(), cert2.expiryDate());

    QCOMPARE(cert1.version(), cert2.version());

    QCOMPARE(cert1.serialNumber(), cert2.serialNumber());

    // ### add more functions here ...

}

void tst_QSslCertificate::copyAndAssign()

{

    if (!QSslSocket::supportsSsl())

        return;

    QFETCH(QString, absFilePath);

    QFETCH(QSsl::EncodingFormat, format);

    QByteArray encoded = readFile(absFilePath);

    QSslCertificate certificate(encoded, format);

    QVERIFY(!certificate.isNull());

    QSslCertificate copied(certificate);

    compareCertificates(certificate, copied);

    QSslCertificate assigned = certificate;

    compareCertificates(certificate, assigned);

}

void tst_QSslCertificate::digest_data()

{

    QTest::addColumn<QString>("absFilePath");

    QTest::addColumn<QSsl::EncodingFormat>("format");

    QTest::addColumn<QString>("absFilePath_digest_md5");

    QTest::addColumn<QString>("absFilePath_digest_sha1");

    foreach (CertInfo certInfo, certInfoList) {

        QString certName = certInfo.fileInfo.fileName();

        QTest::newRow(certName.toLatin1())

            << certInfo.fileInfo.absoluteFilePath()

            << certInfo.format

            << md5Map.value(certName)

            << sha1Map.value(certName);

    }

}

// Converts a digest of the form '{MD5|SHA1} Fingerprint=AB:B8:32...' to binary format.

static QByteArray convertDigest(const QByteArray &input)

{

    QByteArray result;

    QRegExp rx(QLatin1String("(?:=|:)([0-9A-Fa-f]{2})"));

    int pos = 0;

    while ((pos = rx.indexIn(input, pos)) != -1) {

        result.append(rx.cap(1).toLatin1());

        pos += rx.matchedLength();

    }

    return QByteArray::fromHex(result);

}

void tst_QSslCertificate::digest()

{

    if (!QSslSocket::supportsSsl())

        return;

    QFETCH(QString, absFilePath);

    QFETCH(QSsl::EncodingFormat, format);

    QFETCH(QString, absFilePath_digest_md5);

    QFETCH(QString, absFilePath_digest_sha1);

    QByteArray encoded = readFile(absFilePath);

    QSslCertificate certificate(encoded, format);

    QVERIFY(!certificate.isNull());

    if (!absFilePath_digest_md5.isEmpty())

        QCOMPARE(convertDigest(readFile(absFilePath_digest_md5)),

                 certificate.digest(QCryptographicHash::Md5));

    if (!absFilePath_digest_sha1.isEmpty())

        QCOMPARE(convertDigest(readFile(absFilePath_digest_sha1)),

                 certificate.digest(QCryptographicHash::Sha1));

}

void tst_QSslCertificate::alternateSubjectNames_data()

{

    QTest::addColumn<QString>("certFilePath");

    QTest::addColumn<QSsl::EncodingFormat>("format");

    QTest::addColumn<QString>("subjAltNameFilePath");

    foreach (CertInfo certInfo, certInfoList) {

        QString certName = certInfo.fileInfo.fileName();

        if (subjAltNameMap.contains(certName))

            QTest::newRow(certName.toLatin1())

                << certInfo.fileInfo.absoluteFilePath()

                << certInfo.format

                << subjAltNameMap.value(certName);

    }

}

void tst_QSslCertificate::alternateSubjectNames()

{

    if (!QSslSocket::supportsSsl())

        return;

    QFETCH(QString, certFilePath);

    QFETCH(QSsl::EncodingFormat, format);

    QFETCH(QString, subjAltNameFilePath);

    QByteArray encodedCert = readFile(certFilePath);

    QSslCertificate certificate(encodedCert, format);

    QVERIFY(!certificate.isNull());

    QByteArray fileContents = readFile(subjAltNameFilePath);

    const QMultiMap<QSsl::AlternateNameEntryType, QString> altSubjectNames =

        certificate.alternateSubjectNames();

    // verify that each entry in subjAltNames is present in fileContents

    QMapIterator<QSsl::AlternateNameEntryType, QString> it(altSubjectNames);

    while (it.hasNext()) {

        it.next();

        QString type;

        if (it.key() == QSsl::EmailEntry)

            type = QLatin1String("email");

        else if (it.key() == QSsl::DnsEntry)

            type = QLatin1String("DNS");

        else

            QFAIL("unsupported alternative name type");

        QString entry = QString("%1:%2").arg(type).arg(it.value());

        QVERIFY(fileContents.contains(entry.toAscii()));

    }

    // verify that each entry in fileContents is present in subjAltNames

    QRegExp rx(QLatin1String("(email|DNS):([^,\\r\\n]+)"));

    for (int pos = 0; (pos = rx.indexIn(fileContents, pos)) != -1; pos += rx.matchedLength()) {

        QSsl::AlternateNameEntryType key;

        if (rx.cap(1) == QLatin1String("email"))

            key = QSsl::EmailEntry;

        else if (rx.cap(1) == QLatin1String("DNS"))

            key = QSsl::DnsEntry;

        else

            QFAIL("unsupported alternative name type");

        QVERIFY(altSubjectNames.contains(key, rx.cap(2)));

    }

}

void tst_QSslCertificate::publicKey_data()

{

    QTest::addColumn<QString>("certFilePath");

    QTest::addColumn<QSsl::EncodingFormat>("format");

    QTest::addColumn<QString>("pubkeyFilePath");

    foreach (CertInfo certInfo, certInfoList) {

        QString certName = certInfo.fileInfo.fileName();

        if (pubkeyMap.contains(certName))

            QTest::newRow(certName.toLatin1())

                << certInfo.fileInfo.absoluteFilePath()

                << certInfo.format

                << pubkeyMap.value(certName);

    }

}

void tst_QSslCertificate::publicKey()

{

    if (!QSslSocket::supportsSsl())

        return;

    QFETCH(QString, certFilePath);

    QFETCH(QSsl::EncodingFormat, format);

    QFETCH(QString, pubkeyFilePath);

    QByteArray encodedCert = readFile(certFilePath);

    QSslCertificate certificate(encodedCert, format);

    QVERIFY(!certificate.isNull());

    QByteArray encodedPubkey = readFile(pubkeyFilePath);

    QSslKey pubkey(encodedPubkey, QSsl::Rsa, format, QSsl::PublicKey); // ### support DSA as well!

    QVERIFY(!pubkey.isNull());

    QCOMPARE(certificate.publicKey(), pubkey);

}

void tst_QSslCertificate::toPemOrDer_data()

{

    createTestRows();

}

static const char BeginCertString[] = "-----BEGIN CERTIFICATE-----";

static const char EndCertString[] = "-----END CERTIFICATE-----";

// Returns, in Pem-format, the first certificate found in a Pem-formatted block

// (Note that such a block may contain e.g. a private key at the end).

static QByteArray firstPemCertificateFromPem(const QByteArray &pem)

{

    int startPos = pem.indexOf(BeginCertString);

    int endPos = pem.indexOf(EndCertString);

    if (startPos == -1 || endPos == -1)

        return QByteArray();

    return pem.mid(startPos, endPos + sizeof(EndCertString) - startPos);

}

void tst_QSslCertificate::toPemOrDer()

{

    if (!QSslSocket::supportsSsl())

        return;

    QFETCH(QString, absFilePath);

    QFETCH(QSsl::EncodingFormat, format);

    QByteArray encoded = readFile(absFilePath);

    QSslCertificate certificate(encoded, format);

    QVERIFY(!certificate.isNull());

    if (format == QSsl::Pem) {

        encoded.replace('\r',"");

        QByteArray firstPem = firstPemCertificateFromPem(encoded);

        QCOMPARE(certificate.toPem(), firstPem);

    } else {

        // ### for now, we assume that DER-encoded certificates don't contain bundled stuff

        QCOMPARE(certificate.toDer(), encoded);

    }

}

void tst_QSslCertificate::fromDevice()

{

    QTest::ignoreMessage(QtWarningMsg, "QSslCertificate::fromDevice: cannot read from a null device");

    QList<QSslCertificate> certs = QSslCertificate::fromDevice(0); // don't crash

    QVERIFY(certs.isEmpty());

}

void tst_QSslCertificate::fromPath_data()

{

    QTest::addColumn<QString>("path");

    QTest::addColumn<int>("syntax");

    QTest::addColumn<bool>("pemencoding");

    QTest::addColumn<int>("numCerts");

    QTest::newRow("empty fixed pem") << QString() << int(QRegExp::FixedString) << true << 0;

    QTest::newRow("empty fixed der") << QString() << int(QRegExp::FixedString) << false << 0;

    QTest::newRow("empty regexp pem") << QString() << int(QRegExp::RegExp) << true << 0;

    QTest::newRow("empty regexp der") << QString() << int(QRegExp::RegExp) << false << 0;

    QTest::newRow("empty wildcard pem") << QString() << int(QRegExp::Wildcard) << true << 0;

    QTest::newRow("empty wildcard der") << QString() << int(QRegExp::Wildcard) << false << 0;

    QTest::newRow("\"certificates\" fixed pem") << QString("certificates") << int(QRegExp::FixedString) << true << 0;

    QTest::newRow("\"certificates\" fixed der") << QString("certificates") << int(QRegExp::FixedString) << false << 0;

    QTest::newRow("\"certificates\" regexp pem") << QString("certificates") << int(QRegExp::RegExp) << true << 0;

    QTest::newRow("\"certificates\" regexp der") << QString("certificates") << int(QRegExp::RegExp) << false << 0;

    QTest::newRow("\"certificates\" wildcard pem") << QString("certificates") << int(QRegExp::Wildcard) << true << 0;

    QTest::newRow("\"certificates\" wildcard der") << QString("certificates") << int(QRegExp::Wildcard) << false << 0;

    QTest::newRow("\"certificates/cert.pem\" fixed pem") << QString("certificates/cert.pem") << int(QRegExp::FixedString) << true << 1;

    QTest::newRow("\"certificates/cert.pem\" fixed der") << QString("certificates/cert.pem") << int(QRegExp::FixedString) << false << 0;

    QTest::newRow("\"certificates/cert.pem\" regexp pem") << QString("certificates/cert.pem") << int(QRegExp::RegExp) << true << 1;

    QTest::newRow("\"certificates/cert.pem\" regexp der") << QString("certificates/cert.pem") << int(QRegExp::RegExp) << false << 0;

    QTest::newRow("\"certificates/cert.pem\" wildcard pem") << QString("certificates/cert.pem") << int(QRegExp::Wildcard) << true << 1;

    QTest::newRow("\"certificates/cert.pem\" wildcard der") << QString("certificates/cert.pem") << int(QRegExp::Wildcard) << false << 0;

    QTest::newRow("\"certificates/*\" fixed pem") << QString("certificates/*") << int(QRegExp::FixedString) << true << 0;

    QTest::newRow("\"certificates/*\" fixed der") << QString("certificates/*") << int(QRegExp::FixedString) << false << 0;

    QTest::newRow("\"certificates/*\" regexp pem") << QString("certificates/*") << int(QRegExp::RegExp) << true << 0;

    QTest::newRow("\"certificates/*\" regexp der") << QString("certificates/*") << int(QRegExp::RegExp) << false << 0;

    QTest::newRow("\"certificates/*\" wildcard pem") << QString("certificates/*") << int(QRegExp::Wildcard) << true << 4;

    QTest::newRow("\"certificates/*\" wildcard der") << QString("certificates/*") << int(QRegExp::Wildcard) << false << 0;

    QTest::newRow("\"c*/c*.pem\" fixed pem") << QString("c*/c*.pem") << int(QRegExp::FixedString) << true << 0;

    QTest::newRow("\"c*/c*.pem\" fixed der") << QString("c*/c*.pem") << int(QRegExp::FixedString) << false << 0;

    QTest::newRow("\"c*/c*.pem\" regexp pem") << QString("c*/c*.pem") << int(QRegExp::RegExp) << true << 0;

    QTest::newRow("\"c*/c*.pem\" regexp der") << QString("c*/c*.pem") << int(QRegExp::RegExp) << false << 0;

    QTest::newRow("\"c*/c*.pem\" wildcard pem") << QString("c*/c*.pem") << int(QRegExp::Wildcard) << true << 4;

    QTest::newRow("\"c*/c*.pem\" wildcard der") << QString("c*/c*.pem") << int(QRegExp::Wildcard) << false << 0;

    QTest::newRow("\"d*/c*.pem\" fixed pem") << QString("d*/c*.pem") << int(QRegExp::FixedString) << true << 0;

    QTest::newRow("\"d*/c*.pem\" fixed der") << QString("d*/c*.pem") << int(QRegExp::FixedString) << false << 0;

    QTest::newRow("\"d*/c*.pem\" regexp pem") << QString("d*/c*.pem") << int(QRegExp::RegExp) << true << 0;

    QTest::newRow("\"d*/c*.pem\" regexp der") << QString("d*/c*.pem") << int(QRegExp::RegExp) << false << 0;