show wms get capabilities error

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@14003 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: jef

python/core/qgsrasterdataprovider.sip

@@ -5,14 +5,14 @@
  *         QgsVectorDataProvider, and does not yet make
  *         sense for Raster layers.
  */
- 
+
 class QgsRasterDataProvider : QgsDataProvider
 {
-%TypeHeaderCode
+    % TypeHeaderCode
 #include <qgsrasterdataprovider.h>
-%End
+    % End
 
-public:
+  public:
 
     //! If you add to this, please also add to capabilitiesString()
     enum Capability
@@ -32,8 +32,8 @@ public:
     /**
      * Add the list of WMS layer names to be rendered by this server
      */
-    virtual void addLayers(const QStringList & layers,
-                           const QStringList & styles = QStringList()) = 0;
+    virtual void addLayers( const QStringList & layers,
+                            const QStringList & styles = QStringList() ) = 0;
 
     //! get raster image encodings supported by (e.g.) the WMS Server, expressed as MIME types
     virtual QStringList supportedImageEncodings() = 0;
@@ -46,18 +46,18 @@ public:
     /**
      * Set the image encoding (as a MIME type) used in the transfer from (e.g.) the WMS server
      */
-    virtual void setImageEncoding(const QString & mimeType) = 0;
- 
+    virtual void setImageEncoding( const QString & mimeType ) = 0;
+
     /**
      * Set the image projection (in WMS CRS format) used in the transfer from (e.g.) the WMS server
      */
-    virtual void setImageCrs(const QString & crs) = 0;
+    virtual void setImageCrs( const QString & crs ) = 0;
 
 
     // TODO: Document this better.
     /** \brief   Renders the layer as an image
      */
-    virtual QImage* draw(const QgsRectangle & viewExtent, int pixelWidth, int pixelHeight) = 0;
+    virtual QImage* draw( const QgsRectangle & viewExtent, int pixelWidth, int pixelHeight ) = 0;
 
     /** Returns a bitmask containing the supported capabilities
         Note, some capabilities may change depending on whether
@@ -73,9 +73,9 @@ public:
 
 
     // TODO: Get the supported formats by this provider
-    
+
     // TODO: Get the file masks supported by this provider, suitable for feeding into the file open dialog box
-    
+
 
     /**
      * Get metadata in a format suitable for feeding directly
@@ -96,7 +96,7 @@ public:
      * \note  The arbitraryness of the returned document is enforced by WMS standards
      *        up to at least v1.3.0
      */
-    virtual QString identifyAsText(const QgsPoint& point) = 0;
+    virtual QString identifyAsText( const QgsPoint& point ) = 0;
 
     /**
      * \brief Identify details from a server (e.g. WMS) from the last screen update
@@ -113,7 +113,7 @@ public:
      *
      * \note  added in 1.5
      */
-    virtual QString identifyAsHtml(const QgsPoint& point) = 0;
+    virtual QString identifyAsHtml( const QgsPoint& point ) = 0;
 
     /**
      * \brief   Returns the caption error text for the last error in this provider
@@ -137,16 +137,19 @@ public:
      */
     virtual QString lastError() = 0;
 
-      /**Returns the dpi of the output device.
+    /**
+     * \brief   Returns the format of the error text for the last error in this provider
+     *
+     * \note added in 1.6
+     */
+    virtual QString lastErrorFormat();
+
+    /**Returns the dpi of the output device.
       @note: this method was added in version 1.2*/
     int dpi();
 
     /**Sets the output device resolution.
       @note: this method was added in version 1.2*/
-    void setDpi(int dpi);
-
-
-protected:
-
+    void setDpi( int dpi );
 };
 

src/app/qgswmssourceselect.cpp

@@ -1021,29 +1021,25 @@ void QgsWMSSourceSelect::showStatusMessage( QString const &theMessage )
 
 void QgsWMSSourceSelect::showError( QgsWmsProvider * wms )
 {
-#if 0
-  QMessageBox::warning(
-    this,
-    wms->lastErrorTitle(),
-    tr( "Could not understand the response.  The %1 provider said:\n%2", "COMMENTED OUT" )
-    .arg( wms->name() ).arg( wms->lastError() )
-  );
-#endif
-
   QgsMessageViewer * mv = new QgsMessageViewer( this );
   mv->setWindowTitle( wms->lastErrorTitle() );
-  mv->setMessageAsPlainText( tr( "Could not understand the response.  The %1 provider said:\n%2" )
-                             .arg( wms->name() ).arg( wms->lastError() )
-                           );
+
+  if ( wms->lastErrorFormat() == "text/html" )
+  {
+    mv->setMessageAsHtml( wms->lastError() );
+  }
+  else
+  {
+    mv->setMessageAsPlainText( tr( "Could not understand the response.  The %1 provider said:\n%2" ).arg( wms->name() ).arg( wms->lastError() ) );
+  }
   mv->showMessage( true ); // Is deleted when closed
 }
 
 void QgsWMSSourceSelect::on_cmbConnections_activated( int )
 {
   // Remember which server was selected.
   QSettings settings;
-  settings.setValue( "/Qgis/connections-wms/selected",
-                     cmbConnections->currentText() );
+  settings.setValue( "/Qgis/connections-wms/selected", cmbConnections->currentText() );
 }
 
 void QgsWMSSourceSelect::on_btnAddDefault_clicked()

src/core/qgsrasterdataprovider.cpp

@@ -25,13 +25,12 @@ QgsRasterDataProvider::QgsRasterDataProvider(): mDpi( -1 )
 {
 }
 
-
 QgsRasterDataProvider::QgsRasterDataProvider( QString const & uri )
-    : QgsDataProvider( uri ), mDpi( -1 )
+    : QgsDataProvider( uri )
+    , mDpi( -1 )
 {
 }
 
-
 QString QgsRasterDataProvider::capabilitiesString() const
 {
   QStringList abilitiesList;
@@ -53,4 +52,9 @@ bool QgsRasterDataProvider::identify( const QgsPoint& thePoint, QMap<QString, QS
   return false;
 }
 
+QString QgsRasterDataProvider::lastErrorFormat()
+{
+  return "text/plain";
+}
+
 // ENDS

src/core/qgsrasterdataprovider.h

@@ -172,6 +172,14 @@ class CORE_EXPORT QgsRasterDataProvider : public QgsDataProvider
      */
     virtual QString lastError() = 0;
 
+    /**
+     * \brief   Returns the format of the error text for the last error in this provider
+     *
+     * \note added in 1.6
+     */
+    virtual QString lastErrorFormat();
+
+
     /**Returns the dpi of the output device.
       @note: this method was added in version 1.2*/
     int dpi() const {return mDpi;}

src/providers/wms/qgswmsprovider.cpp

@@ -727,6 +727,7 @@ void QgsWmsProvider::tileReplyFinished()
     if ( !status.isNull() && status.toInt() >= 400 )
     {
       QVariant phrase = reply->attribute( QNetworkRequest::HttpReasonPhraseAttribute );
+      mErrorFormat = "text/plain";
       mError = tr( "tile request err %1: %2" ).arg( status.toInt() ).arg( phrase.toString() );
       emit statusChanged( mError );
 
@@ -808,6 +809,7 @@ void QgsWmsProvider::cacheReplyFinished()
     if ( !status.isNull() && status.toInt() >= 400 )
     {
       QVariant phrase = cacheReply->attribute( QNetworkRequest::HttpReasonPhraseAttribute );
+      mErrorFormat = "text/plain";
       mError = tr( "map request error %1: %2" ).arg( status.toInt() ).arg( phrase.toString() );
       emit statusChanged( mError );
 
@@ -865,7 +867,16 @@ bool QgsWmsProvider::retrieveServerCapabilities( bool forceRefresh )
 
     if ( httpcapabilitiesresponse.isEmpty() )
     {
-      QgsDebugMsg( "empty capabilities: " + mError );
+      mErrorFormat = "text/plain";
+      mError = tr( "empty capabilities document" );
+      return false;
+    }
+
+    if ( httpcapabilitiesresponse.startsWith( "<html>" ) ||
+         httpcapabilitiesresponse.startsWith( "<HTML>" ) )
+    {
+      mErrorFormat = "text/html";
+      mError = httpcapabilitiesresponse;
       return false;
     }
 
@@ -919,11 +930,13 @@ void QgsWmsProvider::capabilitiesReplyFinished()
 
     if ( httpcapabilitiesresponse.isEmpty() )
     {
+      mErrorFormat = "text/plain";
       mError = tr( "empty of capabilities: %1" ).arg( mCapabilitiesReply->errorString() );
     }
   }
   else
   {
+    mErrorFormat = "text/plain";
     mError = tr( "Download of capabilities failed: %1" ).arg( mCapabilitiesReply->errorString() );
     QgsDebugMsg( "error: " + mError );
     httpcapabilitiesresponse.clear();
@@ -966,9 +979,12 @@ bool QgsWmsProvider::parseCapabilitiesDom( QByteArray const &xml, QgsWmsCapabili
   if ( !contentSuccess )
   {
     mErrorCaption = tr( "Dom Exception" );
-    mError = tr( "Could not get WMS capabilities: %1 at line %2 column %3\n" )
-             .arg( errorMsg ).arg( errorLine ).arg( errorColumn )
-             + tr( "This is probably due to an incorrect WMS Server URL." );
+    mErrorFormat = "text/plain";
+    mError = tr( "Could not get WMS capabilities: %1 at line %2 column %3\nThis is probably due to an incorrect WMS Server URL.\nResponse was:\n\n%4" )
+             .arg( errorMsg )
+             .arg( errorLine )
+             .arg( errorColumn )
+             .arg( QString( xml ) );
 
     QgsLogger::debug( "Dom Exception: " + mError );
 
@@ -986,10 +1002,12 @@ bool QgsWmsProvider::parseCapabilitiesDom( QByteArray const &xml, QgsWmsCapabili
   )
   {
     mErrorCaption = tr( "Dom Exception" );
-    mError = tr( "Could not get WMS capabilities in the "
-                 "expected format (DTD): no %1 or %2 found\n" )
-             .arg( "WMS_Capabilities" ).arg( "WMT_MS_Capabilities" )
-             + tr( "This is probably due to an incorrect WMS Server URL." );
+    mErrorFormat = "text/plain";
+    mError = tr( "Could not get WMS capabilities in the expected format (DTD): no %1 or %2 found.\nThis might be due to an incorrect WMS Server URL.\nTag:%3\nResponse was:\n%4" )
+             .arg( "WMS_Capabilities" )
+             .arg( "WMT_MS_Capabilities" )
+             .arg( docElem.tagName() )
+             .arg( QString( xml ) );
 
     QgsLogger::debug( "Dom Exception: " + mError );
 
@@ -1825,11 +1843,13 @@ bool QgsWmsProvider::parseServiceExceptionReportDom( QByteArray const & xml )
   if ( !contentSuccess )
   {
     mErrorCaption = tr( "Dom Exception" );
-    mError = tr( "Could not get WMS Service Exception at %1: %2 at line %3 column %4" )
+    mErrorFormat = "text/plain";
+    mError = tr( "Could not get WMS Service Exception at %1: %2 at line %3 column %4\n\nResponse was:\n\n%4" )
              .arg( mBaseUrl )
              .arg( errorMsg )
              .arg( errorLine )
-             .arg( errorColumn );
+             .arg( errorColumn )
+             .arg( QString( xml ) );
 
     QgsLogger::debug( "Dom Exception: " + mError );
 
@@ -1875,10 +1895,12 @@ void QgsWmsProvider::parseServiceException( QDomElement const & e )
   QString seCode = e.attribute( "code" );
   QString seText = e.text();
 
+  mErrorFormat = "text/plain";
+
   // set up friendly descriptions for the service exception
   if ( seCode == "InvalidFormat" )
   {
-    mError = tr( "Request contains a Format not offered by the server." );
+    mError = tr( "Request contains a format not offered by the server." );
   }
   else if ( seCode == "InvalidCRS" )
   {
@@ -2744,6 +2766,7 @@ void QgsWmsProvider::identifyReplyFinished()
     if ( !status.isNull() && status.toInt() >= 400 )
     {
       QVariant phrase = mIdentifyReply->attribute( QNetworkRequest::HttpReasonPhraseAttribute );
+      mErrorFormat = "text/plain";
       mError = tr( "map request error %1: %2" ).arg( status.toInt() ).arg( phrase.toString() );
       emit statusChanged( mError );
 
@@ -2781,6 +2804,10 @@ QString QgsWmsProvider::lastError()
   return mError;
 }
 
+QString QgsWmsProvider::lastErrorFormat()
+{
+  return mErrorFormat;
+}
 
 QString  QgsWmsProvider::name() const
 {

src/providers/wms/qgswmsprovider.h

@@ -579,9 +579,13 @@ class QgsWmsProvider : public QgsRasterDataProvider
      * Interactive users of this provider can then, for example,
      * call a QMessageBox to display the contents.
      */
-
     QString lastError();
 
+    /**
+     * \brief   Returns the format of the error message (text or html)
+     */
+    QString lastErrorFormat();
+
     /** return a provider name
 
     Essentially just returns the provider key.  Should be used to build file
@@ -884,6 +888,11 @@ class QgsWmsProvider : public QgsRasterDataProvider
      */
     QString mError;
 
+
+    /** The mime type of the message
+     */
+    QString mErrorFormat;
+
     //! A QgsCoordinateTransform is used for transformation of WMS layer extents
     QgsCoordinateTransform *mCoordinateTransform;