Merge pull request #9005 from alexbruy/wcs-fix

fix CRS handling in the DescribeCoverage response (refs #21045) [wcs]

Author: alexbruy

src/providers/wcs/qgswcscapabilities.cpp

@@ -794,7 +794,24 @@ bool QgsWcsCapabilities::parseDescribeCoverageDom10( QByteArray const &xml, QgsW
   QDomElement supportedCRSsElement = firstChild( coverageOfferingElement, QStringLiteral( "supportedCRSs" ) );
 
   // requestResponseCRSs and requestCRSs + responseCRSs are alternatives
-  coverage->supportedCrs = domElementsTexts( coverageOfferingElement, QStringLiteral( "supportedCRSs.requestResponseCRSs" ) );
+  // we try to parse one or the other
+  QStringList crsList;
+  crsList = domElementsTexts( coverageOfferingElement, QStringLiteral( "supportedCRSs.requestResponseCRSs" ) );
+  if ( crsList.isEmpty() )
+  {
+    crsList = domElementsTexts( coverageOfferingElement, QStringLiteral( "supportedCRSs.requestCRSs" ) );
+    crsList << domElementsTexts( coverageOfferingElement, QStringLiteral( "supportedCRSs.responseCRSs" ) );
+  }
+
+  // exclude invalid CRSs from the lists
+  for ( const QString &crsid : qgis::as_const( crsList ) )
+  {
+    if ( QgsCoordinateReferenceSystem::fromOgcWmsCrs( crsid ).isValid() )
+    {
+      coverage->supportedCrs << crsid;
+    }
+  }
+
   // TODO: requestCRSs, responseCRSs - must be then implemented also in provider
   //QgsDebugMsg( "supportedCrs = " + coverage->supportedCrs.join( "," ) );
 
@@ -817,7 +834,11 @@ bool QgsWcsCapabilities::parseDescribeCoverageDom10( QByteArray const &xml, QgsW
   // If supportedCRSs.nativeCRSs is not defined we try to get it from RectifiedGrid
   if ( coverage->nativeCrs.isEmpty() )
   {
-    coverage->nativeCrs = gridElement.attribute( QStringLiteral( "srsName" ) );
+    QString crs = gridElement.attribute( QStringLiteral( "srsName" ) );
+    if ( QgsCoordinateReferenceSystem::fromOgcWmsCrs( crs ).isValid() )
+    {
+      coverage->nativeCrs = crs;
+    }
   }
 
   if ( !gridElement.isNull() )

src/providers/wcs/qgswcssourceselect.cpp

@@ -226,7 +226,6 @@ QStringList QgsWCSSourceSelect::selectedLayersFormats()
 
 QStringList QgsWCSSourceSelect::selectedLayersCrses()
 {
-
   QString identifier = selectedIdentifier();
   if ( identifier.isEmpty() ) { return QStringList(); }