Merge pull request #5425 from pblottiere/server_getfeatureinfo

[server][bugfix] Consider QUERY_LAYERS as valid layers in GetFeatureInfo

src/server/services/wms/qgswmsrenderer.cpp

@@ -956,6 +956,16 @@ namespace QgsWms
     else
       layers = stylizedLayers( params );
 
+    // add QUERY_LAYERS to list of available layers for more flexibility
+    for ( const QString &queryLayer : queryLayers )
+    {
+      if ( mNicknameLayers.contains( queryLayer )
+           && !layers.contains( mNicknameLayers[queryLayer] ) )
+      {
+        layers.append( mNicknameLayers[queryLayer] );
+      }
+    }
+
     // create the mapSettings and the output image
     QgsMapSettings mapSettings;
     std::unique_ptr<QImage> outputImage( createImage() );

tests/src/python/test_qgsserver_wms.py

@@ -84,6 +84,14 @@ def test_getfeatureinfo(self):
                                  'query_layers=testlayer%20%C3%A8%C3%A9&X=190&Y=320',
                                  'wms_getfeatureinfo-text-xml')
 
+        self.wms_request_compare('GetFeatureInfo',
+                                 '&layers=&styles=&' +
+                                 'info_format=text%2Fxml&transparent=true&' +
+                                 'width=600&height=400&srs=EPSG%3A3857&bbox=913190.6389747962%2C' +
+                                 '5606005.488876367%2C913235.426296057%2C5606035.347090538&' +
+                                 'query_layers=testlayer%20%C3%A8%C3%A9&X=190&Y=320',
+                                 'wms_getfeatureinfo-text-xml')
+
         # Test getfeatureinfo response html
         self.wms_request_compare('GetFeatureInfo',
                                  '&layers=testlayer%20%C3%A8%C3%A9&styles=&' +