add auto test for SSL certificates containing utf8 characters

Task-number: QTBUG-7912
Reviewed-by: Peter Hartmann <peter.hartmann@nokia.com>
(cherry picked from commit 19c77b5e5e5fefedafcfbd587c3fbb4114d7c641)

tests/auto/qsslcertificate/certificates/cert-ss-san-utf8.pem

@@ -0,0 +1,16 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

tests/auto/qsslcertificate/certificates/cert-ss-san-utf8.pem.san

@@ -0,0 +1,5 @@
+[subj_alt_name]
+subjectAltName=\
+  email:arne@foobar.org,\
+  DNS:www.foobar.org,\
+  email:bjarne@foobar.org

tests/auto/qsslcertificate/certificates/gencertificates.sh

@@ -90,5 +90,15 @@ openssl req -x509 -in req-san.pem -out $outname -key rsa-pri-1024.pem \
     -config san.cnf -extensions subj_alt_name
 /bin/cp san.cnf $outname.san
 
+#--- Non-ASCII Subject ---------------------------------------------------------------------
+echo -e "\n generating self signed root cert. with Subject containing UTF-8 characters ..."
+outname=cert-ss-san-utf8.pem
+#subject="/O=HĕĂƲÿ ʍếʈặḻ Récördŝ/OU=㈧A㉁ｫBC/CN=Johnny Guitar/C=NO"
+subject=$'/O=H\xc4\x95\xc4\x82\xc6\xb2\xc3\xbf \xca\x8d\xe1\xba\xbf\xca\x88\xe1\xba\xb7\xe1\xb8\xbb R\xc3\xa9c\xc3\xb6rd\xc5\x9d/OU=\xe3\x88\xa7A\xe3\x89\x81\xef\xbd\xabBC/CN=Johnny Guitar/C=NO'
+openssl req -out req-san.pem -new -key rsa-pri-1024.pem -utf8 -subj "$subject"
+openssl req -x509 -in req-san.pem -out $outname -key rsa-pri-1024.pem \
+    -config san.cnf -extensions subj_alt_name -nameopt multiline,utf8,-esc_msb
+/bin/cp san.cnf $outname.san
+
 echo -e "\n cleaning up ..."
 /bin/rm rsa-pri-1024.pem rsa-pub-1024.* req*.pem

tests/auto/qsslcertificate/tst_qsslcertificate.cpp

@@ -96,6 +96,7 @@ private slots:
     void digest_data();
     void digest();
     void alternateSubjectNames_data();
+    void utf8SubjectNames();
     void alternateSubjectNames();
     void publicKey_data();
     void publicKey();
@@ -407,6 +408,27 @@ void tst_QSslCertificate::alternateSubjectNames()
     }
 }
 
+void tst_QSslCertificate::utf8SubjectNames()
+{
+    QSslCertificate cert = QSslCertificate::fromPath("certificates/cert-ss-san-utf8.pem", QSsl::Pem,
+                                                     QRegExp::FixedString).first();
+    QVERIFY(!cert.isNull());
+
+    // O is "Heavy Metal Records" with heavy use of "decorations" like accents, umlauts etc.,
+    // OU uses arabian / asian script letters near codepoint 64K.
+    // strings split where the compiler would otherwise find three-digit hex numbers
+    static const char *o = "H\xc4\x95\xc4\x82\xc6\xb2\xc3\xbf \xca\x8d\xe1\xba\xbf\xca\x88\xe1\xba"
+            "\xb7\xe1\xb8\xbb R\xc3\xa9" "c" "\xc3\xb6rd\xc5\x9d";
+    static const char *ou = "\xe3\x88\xa7" "A" "\xe3\x89\x81\xef\xbd\xab" "BC";
+
+    // the following two tests should help find "\x"-literal encoding bugs in the test itself
+    QCOMPARE(cert.subjectInfo("O").length(), QString::fromUtf8(o).length());
+    QCOMPARE (cert.subjectInfo("O").toUtf8().toHex(), QByteArray(o).toHex());
+
+    QCOMPARE(cert.subjectInfo("O"), QString::fromUtf8(o));
+    QCOMPARE(cert.subjectInfo("OU"), QString::fromUtf8(ou));
+}
+
 void tst_QSslCertificate::publicKey_data()
 {
     QTest::addColumn<QString>("certFilePath");
@@ -519,13 +541,13 @@ void tst_QSslCertificate::fromPath_data()
     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 pem") << QString("certificates/*") << int(QRegExp::Wildcard) << true << 5;
     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 pem") << QString("c*/c*.pem") << int(QRegExp::Wildcard) << true << 5;
     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;
@@ -535,7 +557,7 @@ void tst_QSslCertificate::fromPath_data()
     QTest::newRow("\"d*/c*.pem\" wildcard der") << QString("d*/c*.pem") << 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 << 4;
+    QTest::newRow("\"c.*/c.*.pem\" regexp pem") << QString("c.*/c.*.pem") << int(QRegExp::RegExp) << true << 5;
     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 << 0;
     QTest::newRow("\"c.*/c.*.pem\" wildcard der") << QString("c.*/c.*.pem") << int(QRegExp::Wildcard) << false << 0;
@@ -546,7 +568,7 @@ void tst_QSslCertificate::fromPath_data()
     QTest::newRow("\"d.*/c.*.pem\" wildcard pem") << QString("d.*/c.*.pem") << int(QRegExp::Wildcard) << true << 0;
     QTest::newRow("\"d.*/c.*.pem\" wildcard der") << QString("d.*/c.*.pem") << int(QRegExp::Wildcard) << false << 0;
 #ifdef Q_OS_LINUX
-    QTest::newRow("absolute path wildcard pem") << QString(QDir::currentPath() + "/certificates/*.pem") << int(QRegExp::Wildcard) << true << 4;
+    QTest::newRow("absolute path wildcard pem") << QString(QDir::currentPath() + "/certificates/*.pem") << int(QRegExp::Wildcard) << true << 5;
 #endif
 
     QTest::newRow("trailing-whitespace") << QString("more-certificates/trailing-whitespace.pem") << int(QRegExp::FixedString) << true << 1;
@@ -769,7 +791,7 @@ void tst_QSslCertificate::nulInCN()
     QString cn = cert.subjectInfo(QSslCertificate::CommonName);
     QVERIFY(cn != "www.bank.com");
 
-    static const char realCN[] = "www.bank.com\\x00.badguy.com";
+    static const char realCN[] = "www.bank.com\0.badguy.com";
     QCOMPARE(cn, QString::fromLatin1(realCN, sizeof realCN - 1));
 }