QMediaNetworkPlaylistProvider: Upon error parsing, stop parsing.

When an error is found parsing a playlist, stop parsing. This will also prevent
the emission of the "loaded" signal when the parser finishes.

Some of the newly added testcases do not yet pass because the parser is overly
strict. These improvements are being tracked in QTBUG-40515.

Change-Id: I5c96b7eb488996f28eebd7b6c643940de8e2e0b9
Done-by: Andres Gomez <agomez@igalia.com>
Task-number: QTBUG-40513
Reviewed-by: Andrew den Exter <andrew.den.exter@qinetic.com.au>

src/multimedia/playback/qmedianetworkplaylistprovider.cpp

@@ -90,6 +90,8 @@ void QMediaNetworkPlaylistProviderPrivate::_q_handleParserError(QPlaylistFilePar
         break;
     }
 
+    parser.stop();
+
     emit q->loadFailed(playlistError, errorMessage);
 }
 

tests/auto/unit/qmediaplaylist/testdata/test.pls

@@ -0,0 +1,27 @@
+[playlist]
+
+File1=http://test.host/path
+Title1=First
+Length1=-1
+File2= http://test.host/path  
+Title2=Second
+Length2=-1
+File3=testfile
+Title3=Third
+Length3=-1
+
+
+
+File4=testdir/testfile
+Title4=Fourth
+Length4=-1
+File5=/testdir/testfile
+Title5=Fifth
+Length5=-1
+File6=file://path/name#suffix
+Title6=Sixth
+Length6=-1
+File7=testfile2#suffix
+Title7=Seventh
+Length7=-1
+NumberOfEntries=7

tests/auto/unit/qmediaplaylist/testdata/totem-pl-example.pls

@@ -0,0 +1,5 @@
+[playlist]
+X-GNOME-Title=totem-pl-file-example
+NumberOfEntries=1
+File1=http://test.host/path
+Title1=Silence

tests/auto/unit/qmediaplaylist/testdata/trash.pls

@@ -0,0 +1,2 @@
+[playlist]
+NumberOfEntries=100

tests/auto/unit/qmediaplaylist/tst_qmediaplaylist.cpp

@@ -86,6 +86,7 @@ private slots:
     void currentItem();
     void saveAndLoad();
     void loadM3uFile();
+    void loadPLSFile();
     void playbackMode();
     void playbackMode_data();
     void shuffle();
@@ -356,8 +357,10 @@ void tst_QMediaPlaylist::saveAndLoad()
     QVERIFY(playlist.error() == QMediaPlaylist::FormatNotSupportedError);
     QVERIFY(!playlist.errorString().isEmpty());
 
+    QSignalSpy loadedSignal(&playlist, SIGNAL(loaded()));
     QSignalSpy errorSignal(&playlist, SIGNAL(loadFailed()));
     playlist.load(&buffer, "unsupported_format");
+    QTRY_VERIFY(loadedSignal.isEmpty());
     QCOMPARE(errorSignal.size(), 1);
     QVERIFY(playlist.error() != QMediaPlaylist::NoError);
     QVERIFY(!playlist.errorString().isEmpty());
@@ -367,8 +370,10 @@ void tst_QMediaPlaylist::saveAndLoad()
     QVERIFY(playlist.error() != QMediaPlaylist::NoError);
     QVERIFY(!playlist.errorString().isEmpty());
 
+    loadedSignal.clear();
     errorSignal.clear();
     playlist.load(QUrl::fromLocalFile(QLatin1String("tmp.unsupported_format")), "unsupported_format");
+    QTRY_VERIFY(loadedSignal.isEmpty());
     QCOMPARE(errorSignal.size(), 1);
     QVERIFY(playlist.error() == QMediaPlaylist::FormatNotSupportedError);
     QVERIFY(!playlist.errorString().isEmpty());
@@ -380,7 +385,11 @@ void tst_QMediaPlaylist::saveAndLoad()
     buffer.seek(0);
 
     QMediaPlaylist playlist2;
+    QSignalSpy loadedSignal2(&playlist2, SIGNAL(loaded()));
+    QSignalSpy errorSignal2(&playlist2, SIGNAL(loadFailed()));
     playlist2.load(&buffer, "m3u");
+    QCOMPARE(loadedSignal2.size(), 1);
+    QTRY_VERIFY(errorSignal2.isEmpty());
     QCOMPARE(playlist.error(), QMediaPlaylist::NoError);
 
     QCOMPARE(playlist.mediaCount(), playlist2.mediaCount());
@@ -390,9 +399,13 @@ void tst_QMediaPlaylist::saveAndLoad()
     res = playlist.save(QUrl::fromLocalFile(QLatin1String("tmp.m3u")), "m3u");
     QVERIFY(res);
 
+    loadedSignal2.clear();
+    errorSignal2.clear();
     playlist2.clear();
     QVERIFY(playlist2.isEmpty());
     playlist2.load(QUrl::fromLocalFile(QLatin1String("tmp.m3u")), "m3u");
+    QCOMPARE(loadedSignal2.size(), 1);
+    QTRY_VERIFY(errorSignal2.isEmpty());
     QCOMPARE(playlist.error(), QMediaPlaylist::NoError);
 
     QCOMPARE(playlist.mediaCount(), playlist2.mediaCount());
@@ -406,12 +419,20 @@ void tst_QMediaPlaylist::loadM3uFile()
     QMediaPlaylist playlist;
 
     // Try to load playlist that does not exist in the testdata folder
+    QSignalSpy loadSpy(&playlist, SIGNAL(loaded()));
+    QSignalSpy loadFailedSpy(&playlist, SIGNAL(loadFailed()));
     QString testFileName = QFINDTESTDATA("testdata");
     playlist.load(QUrl::fromLocalFile(testFileName + "/missing_file.m3u"));
+    QTRY_VERIFY(loadSpy.isEmpty());
+    QVERIFY(!loadFailedSpy.isEmpty());
     QVERIFY(playlist.error() != QMediaPlaylist::NoError);
 
+    loadSpy.clear();
+    loadFailedSpy.clear();
     testFileName = QFINDTESTDATA("testdata/test.m3u");
     playlist.load(QUrl::fromLocalFile(testFileName));
+    QTRY_VERIFY(!loadSpy.isEmpty());
+    QVERIFY(loadFailedSpy.isEmpty());
     QCOMPARE(playlist.error(), QMediaPlaylist::NoError);
     QCOMPARE(playlist.mediaCount(), 7);
 
@@ -428,10 +449,79 @@ void tst_QMediaPlaylist::loadM3uFile()
     //ensure #2 suffix is not stripped from path
     testFileName = QFINDTESTDATA("testdata/testfile2#suffix");
     QCOMPARE(playlist.media(6).canonicalUrl(), QUrl::fromLocalFile(testFileName));
+
     // check ability to load from QNetworkRequest
+    loadSpy.clear();
+    loadFailedSpy.clear();
+    playlist.load(QNetworkRequest(QUrl::fromLocalFile(QFINDTESTDATA("testdata/test.m3u"))));
+    QTRY_VERIFY(!loadSpy.isEmpty());
+    QVERIFY(loadFailedSpy.isEmpty());
+}
+
+void tst_QMediaPlaylist::loadPLSFile()
+{
+    QMediaPlaylist playlist;
+
+    // Try to load playlist that does not exist in the testdata folder
     QSignalSpy loadSpy(&playlist, SIGNAL(loaded()));
     QSignalSpy loadFailedSpy(&playlist, SIGNAL(loadFailed()));
-    playlist.load(QNetworkRequest(QUrl::fromLocalFile(QFINDTESTDATA("testdata/test.m3u"))));
+    QString testFileName = QFINDTESTDATA("testdata");
+    playlist.load(QUrl::fromLocalFile(testFileName + "/missing_file.pls"));
+    QTRY_VERIFY(loadSpy.isEmpty());
+    QVERIFY(!loadFailedSpy.isEmpty());
+    QVERIFY(playlist.error() != QMediaPlaylist::NoError);
+
+    // Try to load bogus playlist
+    loadSpy.clear();
+    loadFailedSpy.clear();
+    testFileName = QFINDTESTDATA("testdata/trash.pls");
+    playlist.load(QUrl::fromLocalFile(testFileName));
+    QTRY_VERIFY(loadSpy.isEmpty());
+    QVERIFY(!loadFailedSpy.isEmpty());
+    QVERIFY(playlist.error() == QMediaPlaylist::FormatError);
+
+    // Try to load regular playlist
+    loadSpy.clear();
+    loadFailedSpy.clear();
+    testFileName = QFINDTESTDATA("testdata/test.pls");
+    playlist.load(QUrl::fromLocalFile(testFileName));
+    QTRY_VERIFY(!loadSpy.isEmpty());
+    QVERIFY(loadFailedSpy.isEmpty());
+    QCOMPARE(playlist.error(), QMediaPlaylist::NoError);
+    QCOMPARE(playlist.mediaCount(), 7);
+
+    QCOMPARE(playlist.media(0).canonicalUrl(), QUrl(QLatin1String("http://test.host/path")));
+    QCOMPARE(playlist.media(1).canonicalUrl(), QUrl(QLatin1String("http://test.host/path")));
+    testFileName = QFINDTESTDATA("testdata/testfile");
+    QEXPECT_FAIL("", "See QTBUG-40515", Continue);
+    QCOMPARE(playlist.media(2).canonicalUrl(),
+             QUrl::fromLocalFile(testFileName));
+    testFileName = QFINDTESTDATA("testdata");
+    QEXPECT_FAIL("", "See QTBUG-40515", Continue);
+    QCOMPARE(playlist.media(3).canonicalUrl(),
+             QUrl::fromLocalFile(testFileName + "/testdir/testfile"));
+    QEXPECT_FAIL("", "See QTBUG-40515", Continue);
+    QCOMPARE(playlist.media(4).canonicalUrl(), QUrl(QLatin1String("file:///testdir/testfile")));
+    QCOMPARE(playlist.media(5).canonicalUrl(), QUrl(QLatin1String("file://path/name#suffix")));
+    //ensure #2 suffix is not stripped from path
+    testFileName = QFINDTESTDATA("testdata/testfile2#suffix");
+    QEXPECT_FAIL("", "See QTBUG-40515", Continue);
+    QCOMPARE(playlist.media(6).canonicalUrl(), QUrl::fromLocalFile(testFileName));
+
+    // Try to load a totem-pl generated playlist
+    loadSpy.clear();
+    loadFailedSpy.clear();
+    testFileName = QFINDTESTDATA("testdata/totem-pl-example.pls");
+    playlist.load(QUrl::fromLocalFile(testFileName));
+    QEXPECT_FAIL("", "See QTBUG-40515", Continue);
+    QTRY_VERIFY(!loadSpy.isEmpty());
+    QEXPECT_FAIL("", "See QTBUG-40515", Continue);
+    QVERIFY(loadFailedSpy.isEmpty());
+
+    // check ability to load from QNetworkRequest
+    loadSpy.clear();
+    loadFailedSpy.clear();
+    playlist.load(QNetworkRequest(QUrl::fromLocalFile(QFINDTESTDATA("testdata/test.pls"))));
     QTRY_VERIFY(!loadSpy.isEmpty());
     QVERIFY(loadFailedSpy.isEmpty());
 }