control the presence of the abort icon based on permission.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@6579 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/model/AbstractBuild.java

@@ -586,11 +586,8 @@ public abstract class AbstractBuild<P extends AbstractProject<P,R>,R extends Abs
         }
     }
 
-    /**
-     * People can stop a build if they can start a build.
-     */
     public void checkAbortPermission() {
-        getParent().getACL().checkPermission(AbstractProject.BUILD);
+        getParent().getACL().checkPermission(AbstractProject.ABORT);
     }
 
 //

core/src/main/java/hudson/model/AbstractProject.java

@@ -937,4 +937,8 @@ public abstract class AbstractProject<P extends AbstractProject<P,R>,R extends A
     private static final Logger LOGGER = Logger.getLogger(AbstractProject.class.getName());
 
     public static final Permission BUILD = new Permission(PERMISSIONS, "Build", Permission.UPDATE);
+    /**
+     * Permission to abort a build. For now, let's make it the same as {@link #BUILD}
+     */
+    public static final Permission ABORT = BUILD;
 }

core/src/main/java/hudson/model/Executor.java

@@ -8,6 +8,7 @@ import javax.servlet.ServletException;
 
 import org.kohsuke.stapler.StaplerRequest;
 import org.kohsuke.stapler.StaplerResponse;
+import org.acegisecurity.AccessDeniedException;
 
 
 /**
@@ -162,6 +163,18 @@ public class Executor extends Thread implements ModelObject {
         rsp.forwardToPreviousPage(req);
     }
 
+    /**
+     * Checks if the current user has a permission to stop this build. 
+     */
+    public boolean hasStopPermission() {
+        try {
+            executable.checkAbortPermission();
+            return true;
+        } catch (AccessDeniedException e) {
+            return false;
+        }
+    }
+
     public Computer getOwner() {
         return owner;
     }