fallback possibility if HEIGHT is used on GetLegendGraphics for maps as well

Author: signedav

src/server/services/wms/qgswmsparameters.cpp

@@ -718,18 +718,17 @@ namespace QgsWms
 
   int QgsWmsParameters::getHeightAsInt() const
   {
-    if ( request().compare( QStringLiteral( "GetLegendGraphic" ), Qt::CaseInsensitive ) != 0 &&
-         request().compare( QStringLiteral( "GetLegendGraphics" ), Qt::CaseInsensitive ) != 0 )
-      return heightAsInt();
-    return srcHeightAsInt();
+    if ( QStringList( { QStringLiteral( "GetLegendGraphic" ), QStringLiteral( "GetLegendGraphics" ) } ).contains( request() ) && srcHeightAsInt() > 0 )
+      return srcHeightAsInt();
+    return heightAsInt();
   }
 
   int QgsWmsParameters::getWidthAsInt() const
   {
-    if ( request().compare( QStringLiteral( "GetLegendGraphic" ), Qt::CaseInsensitive ) != 0 &&
-         request().compare( QStringLiteral( "GetLegendGraphics" ), Qt::CaseInsensitive ) != 0 )
-      return widthAsInt();
-    return srcWidthAsInt();
+
+    if ( QStringList( { QStringLiteral( "GetLegendGraphic" ), QStringLiteral( "GetLegendGraphics" ) } ).contains( request() ) && srcWidthAsInt() > 0 )
+      return srcWidthAsInt();
+    return widthAsInt();
   }
 
   QString QgsWmsParameters::dpi() const

tests/src/python/test_qgsserver_wms_getlegendgraphic.py

@@ -495,6 +495,42 @@ def test_wms_GetLegendGraphic_BBox2(self):
         r, h = self._result(self._execute_request(qs))
         self._img_diff_error(r, h, "WMS_GetLegendGraphic_BBox2")
 
+    def test_wms_GetLegendGraphic_BBox_Fallback(self):
+        qs = "?" + "&".join(["%s=%s" % i for i in list({
+            "MAP": urllib.parse.quote(self.projectPath),
+            "SERVICE": "WMS",
+            "VERSION": "1.1.1",
+            "REQUEST": "GetLegendGraphic",
+            "LAYER": "Country,Hello,db_point",
+            "LAYERTITLE": "FALSE",
+            "FORMAT": "image/png",
+            "HEIGHT": "500",
+            "WIDTH": "500",
+            "BBOX": "-151.7,-38.9,51.0,78.0",
+            "CRS": "EPSG:4326"
+        }.items())])
+
+        r, h = self._result(self._execute_request(qs))
+        self._img_diff_error(r, h, "WMS_GetLegendGraphic_BBox")
+
+    def test_wms_GetLegendGraphic_BBox2_Fallback(self):
+        qs = "?" + "&".join(["%s=%s" % i for i in list({
+            "MAP": urllib.parse.quote(self.projectPath),
+            "SERVICE": "WMS",
+            "VERSION": "1.1.1",
+            "REQUEST": "GetLegendGraphic",
+            "LAYER": "Country,Hello,db_point",
+            "LAYERTITLE": "FALSE",
+            "FORMAT": "image/png",
+            "HEIGHT": "500",
+            "WIDTH": "500",
+            "BBOX": "-76.08,-6.4,-19.38,38.04",
+            "SRS": "EPSG:4326"
+        }.items())])
+
+        r, h = self._result(self._execute_request(qs))
+        self._img_diff_error(r, h, "WMS_GetLegendGraphic_BBox2")
+
     def test_wms_GetLegendGraphic_EmptyLegend(self):
         qs = "?" + "&".join(["%s=%s" % i for i in list({
             "MAP": self.testdata_path + 'test_project_contextual_legend.qgs',