more error tracing; refs #22

swisssurfer/src/downloadmanager.hxx

@@ -6,6 +6,7 @@
 // 45678901234567890123456789012345678901234567890123456789012345678901234567890
 
 #include <QtNetwork/QNetworkReply>
+#include <QtNetwork/QSslError>
 #include <map>
 
 #include <cassert>
@@ -24,6 +25,79 @@ class DownloadManager: public QObject {
       return *this;
     }
     
+    static QString networkError(QNetworkReply::NetworkError err) {
+      LOG<<err;
+      switch (err) {
+        case QNetworkReply::NoError:
+          return tr("Network connection successful, remote host can be"
+                    " reached.");
+        case QNetworkReply::ConnectionRefusedError:
+          return tr("The remote server refused the connection (the server is"
+                    " not accepting requests).");
+        case QNetworkReply::RemoteHostClosedError:
+          return tr("The remote server closed the connection prematurely,"
+                    " before the entire reply was received and processed.");
+        case QNetworkReply::HostNotFoundError:
+          return tr("The remote host name was not found (invalid hostname).");
+        case QNetworkReply::TimeoutError:
+          return tr("The connection to the remote server timed out.");
+        case QNetworkReply::OperationCanceledError:
+          return tr("The operation was canceled via calls to abort() or"
+                    " close() before it was finished.");
+        case QNetworkReply::SslHandshakeFailedError:
+          return tr("The SSL/TLS handshake failed and the encrypted channel"
+                    " could not be established. The sslErrors() signal should"
+                    " have been emitted.");
+        case QNetworkReply::ProxyConnectionRefusedError:
+          return tr("The connection to the proxy server was refused (the"
+                    " proxy server is not accepting requests).");
+        case QNetworkReply::ProxyConnectionClosedError:
+          return tr("The proxy server closed the connection prematurely,"
+                    " before the entire reply was received and processed.");
+        case QNetworkReply::ProxyNotFoundError:
+          return tr("The proxy host name was not found (invalid proxy"
+                    " hostname).");
+        case QNetworkReply::ProxyTimeoutError:
+          return tr("The connection to the proxy timed out or the proxy did"
+                    " not reply in time to the request sent.");
+        case QNetworkReply::ProxyAuthenticationRequiredError:
+          return tr("The proxy requires authentication in order to honour the"
+                    " request but did not accept any credentials offered"
+                    " (if any).");
+        case QNetworkReply::ContentAccessDenied:
+          return tr("The access to the remote content was denied (similar to"
+                    " HTTP error 401).");
+        case QNetworkReply::ContentOperationNotPermittedError:
+          return tr("The operation requested on the remote content is not"
+                    " permitted.");
+        case QNetworkReply::ContentNotFoundError:
+          return tr("The remote content was not found at the server (similar"
+                    " to HTTP error 404).");
+        case QNetworkReply::AuthenticationRequiredError:
+          return tr("The remote server requires authentication to serve the"
+                    " content but the credentials provided were not accepted"
+                    " (if any).");
+        case QNetworkReply::ProtocolUnknownError:
+          return tr("The Network Access API cannot honor the request because"
+                    " the protocol is not known.");
+        case QNetworkReply::ProtocolInvalidOperationError:
+          return tr("The requested operation is invalid for this protocol.");
+        case QNetworkReply::UnknownNetworkError:
+          return tr("An unknown network-related error was detected.");
+        case QNetworkReply::UnknownProxyError:
+          return tr("An unknown proxy-related error was detected.");
+        case QNetworkReply::UnknownContentError:
+          return tr("An unknonwn error related to the remote content was"
+                    " detected.");
+        case QNetworkReply::ProtocolFailure:
+          return tr("A breakdown in protocol was detected (parsing error,"
+                    " invalid or unexpected responses, etc.).");
+        default:
+          return tr("<strong>Unknown network error (code: %1).</string>")
+            .arg(err);
+      }
+    }
+    
   Q_SIGNALS:
       
     void progress(qint64 done, qint64 total);
@@ -77,7 +151,7 @@ class DownloadManager: public QObject {
       calcProgress();
     }
     void error(QNetworkReply::NetworkError code) {
-      LOG;
+      LOG<<"Status:"<<networkError(code);
     }
     void slotFinished() {
       LOG;
@@ -89,6 +163,9 @@ class DownloadManager: public QObject {
     }
     void sslErrors(const QList<QSslError> & errors) {
       LOG;
+      for (QList<QSslError>::const_iterator err(errors.begin());
+           err!=errors.end(); ++err)
+        LOG<<"SSL-Error: "<<err->errorString();
     }
     void uploadProgress(qint64 bytesSent, qint64 bytesTotal) {
       //LOG<<bytesSent<<bytesTotal;