Bug report #9306: mapserver GetMap segfaults when OPACITIES is set and an external SLD and is provided but not for all layers - QGIS Application - QGIS Issue Tracking

Bug report #9306

mapserver GetMap segfaults when OPACITIES is set and an external SLD and is provided but not for all layers

Added by Alessandro Pasotti almost 12 years ago. Updated almost 12 years ago.

Status:	Closed
Priority:	High
Assignee:	Alessandro Pasotti
Category:	QGIS Server
Affected QGIS version:	2.0.1	Regression?:	No
Operating System:		Easy fix?:	No
Pull Request or Patch supplied:	Yes	Resolution:
Crashes QGIS or corrupts data:	Yes	Copied to github as #:	17914

Description

Here is a patch, I'll provide it in a PR.

For the impatients:

diff --git a/src/mapserver/qgswmsserver.cpp b/src/mapserver/qgswmsserver.cpp
index 89e7614..0debfaf 100644
--- a/src/mapserver/qgswmsserver.cpp
+++ b/src/mapserver/qgswmsserver.cpp
@@ -2194,7 +2194,7 @@ void QgsWMSServer::applyOpacities( const QStringList& layerList, QList< QPair< Q
   QList< QPair< QgsMapLayer*, int > > layerOpacityList;
   QStringList::const_iterator oIt = opacityList.constBegin();
   QStringList::const_iterator lIt = layerList.constBegin();
-  for ( ; oIt != opacityList.constEnd(); ++oIt, ++lIt )
+  for ( ; oIt != opacityList.constEnd() && lIt != layerList.constEnd(); ++oIt, ++lIt )
   {
     //get layer list for
     int opacity = oIt->toInt();