[logUpload] Configurable upload size limit

A key 'sizeLimit' added to uploadServer field in branding.desc to limit the size of logFile to upload.

src/branding/default/branding.desc

@@ -227,6 +227,10 @@ slideshowAPI: 2
 #  - url       : Defines the address of pastebin service to be used.
 #                Takes string as input. Important bits are the host and port,
 #                the scheme is not used.
+#  - sizeLimit : Defines maximum size limit (in KiB) of log file to be pasted. 
+#                Takes integer as input. If <=0, no limit will be forced,
+#                else only last 'n' KiB of log file will be pasted. 
 uploadServer :
     type :    "fiche"
     url :     "http://termbin.com:9999"
+    sizeLimit : 20

src/libcalamaresui/Branding.cpp

@@ -153,15 +153,17 @@ uploadServerFromMap( const QVariantMap& map )
 
     QString typestring = map[ "type" ].toString();
     QString urlstring = map[ "url" ].toString();
+    qint64 sizeLimit = map[ "sizeLimit" ].toLongLong();
 
     if ( typestring.isEmpty() || urlstring.isEmpty() )
     {
-        return Branding::UploadServerInfo( Branding::UploadServerType::None, QUrl() );
+        return Branding::UploadServerInfo( Branding::UploadServerType::None, QUrl(), -1 );
     }
 
     bool bogus = false;  // we don't care about type-name lookup success here
     return Branding::UploadServerInfo( names.find( typestring, bogus ),
-                                       QUrl( urlstring, QUrl::ParsingMode::StrictMode ) );
+                                       QUrl( urlstring, QUrl::ParsingMode::StrictMode ),
+                                       sizeLimit );
 }
 
 /** @brief Load the @p map with strings from @p config

src/libcalamaresui/Branding.h

@@ -226,7 +226,7 @@ public:
      * This is both the type (which may be none, in which case the URL
      * is irrelevant and usually empty) and the URL for the upload.
      */
-    using UploadServerInfo = QPair< UploadServerType, QUrl >;
+    using UploadServerInfo = std::tuple< UploadServerType, QUrl, qint64 >;
     UploadServerInfo uploadServer() const { return m_uploadServer; }
 
     /**

src/libcalamaresui/ViewManager.cpp

@@ -144,7 +144,7 @@ void
 ViewManager::onInstallationFailed( const QString& message, const QString& details )
 {
     bool shouldOfferWebPaste
-        = Calamares::Branding::instance()->uploadServer().first != Calamares::Branding::UploadServerType::None;
+        = std::get<2>(Calamares::Branding::instance()->uploadServer()) != Calamares::Branding::UploadServerType::None;
 
     cError() << "Installation failed:" << message;
     cDebug() << Logger::SubEntry << "- message:" << message;

src/libcalamaresui/utils/Paste.cpp

@@ -30,7 +30,7 @@ using namespace CalamaresUtils::Units;
  * Returns an empty QByteArray() on any kind of error.
  */
 STATICTEST QByteArray
-logFileContents()
+logFileContents( qint64 sizeLimit )
 {
     const QString name = Logger::logFile();
     QFile pasteSourceFile( name );
@@ -40,11 +40,15 @@ logFileContents()
         return QByteArray();
     }
     QFileInfo fi( pasteSourceFile );
-    if ( fi.size() > 16_KiB )
+    sizeLimit *= 1024;            //For KiB to bytes
+    cDebug() << "Log upload size limit was set to " << sizeLimit << " bytes";
+    if ( fi.size() > sizeLimit and sizeLimit > 0 )
     {
-        pasteSourceFile.seek( fi.size() - 16_KiB );
+        // Fixme : this following line is not getting pasted
+        cDebug() << "Only last " << sizeLimit << " bytes of log file (" << fi.size() << ") uploaded" ;
+        pasteSourceFile.seek( fi.size() - sizeLimit );
     }
-    return pasteSourceFile.read( 16_KiB );
+    return pasteSourceFile.read( sizeLimit );
 }
 
 
@@ -101,7 +105,7 @@ ficheLogUpload( const QByteArray& pasteData, const QUrl& serverUrl, QObject* par
 QString
 CalamaresUtils::Paste::doLogUpload( QObject* parent )
 {
-    auto [ type, serverUrl ] = Calamares::Branding::instance()->uploadServer();
+    auto [ type, serverUrl, sizeLimit ] = Calamares::Branding::instance()->uploadServer();
     if ( !serverUrl.isValid() )
     {
         cWarning() << "Upload configure with invalid URL";
@@ -113,7 +117,7 @@ CalamaresUtils::Paste::doLogUpload( QObject* parent )
         return QString();
     }
 
-    QByteArray pasteData = logFileContents();
+    QByteArray pasteData = logFileContents( sizeLimit );
     if ( pasteData.isEmpty() )
     {
         // An error has already been logged
@@ -165,6 +169,6 @@ CalamaresUtils::Paste::doLogUploadUI( QWidget* parent )
 bool
 CalamaresUtils::Paste::isEnabled()
 {
-    auto [ type, serverUrl ] = Calamares::Branding::instance()->uploadServer();
+    auto [ type, serverUrl, sizeLimit ] = Calamares::Branding::instance()->uploadServer();
     return type != Calamares::Branding::UploadServerType::None;
 }

src/libcalamaresui/utils/TestPaste.cpp

@@ -16,7 +16,7 @@
 #include <QDateTime>
 #include <QtTest/QtTest>
 
-extern QByteArray logFileContents();
+extern QByteArray logFileContents( qint64 sizeLimit );
 extern QString ficheLogUpload( const QByteArray& pasteData, const QUrl& serverUrl, QObject* parent );
 
 class TestPaste : public QObject
@@ -37,13 +37,13 @@ TestPaste::testGetLogFile()
 {
     QFile::remove( Logger::logFile() );
     // This test assumes nothing **else** has set up logging yet
-    QByteArray contentsOfLogfileBefore = logFileContents();
+    QByteArray contentsOfLogfileBefore = logFileContents( 16 );
     QVERIFY( contentsOfLogfileBefore.isEmpty() );
 
     Logger::setupLogLevel( Logger::LOGDEBUG );
     Logger::setupLogfile();
 
-    QByteArray contentsOfLogfileAfterSetup = logFileContents();
+    QByteArray contentsOfLogfileAfterSetup = logFileContents( 16 );
     QVERIFY( !contentsOfLogfileAfterSetup.isEmpty() );
 }