Fix mod_rewrite memleak/endless loop detection (#1775, thx phy - again!)

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-1.4.x@2306 152afb58-edef-0310-8abb-c4023f1b3aa9

NEWS

@@ -63,6 +63,7 @@ NEWS
   * workaround ldap connection leak if a ldap connection failed (restarting ldap)
   * fix auth.backend.ldap.bind-dn/pw problems (only read from global context for temporary ldap reconnects, thx ruskie)
   * fix memleak in request header parsing (#1774, thx qhy)
+  * fix mod_rewrite memleak/endless loop detection (#1775, thx phy - again!)
 
 - 1.4.19 - 2008-03-10
 

src/mod_rewrite.c

@@ -425,9 +425,12 @@ URIHANDLER_FUNC(mod_rewrite_uri_handler) {
 
 			pcre_free(list);
 
-			hctx = handler_ctx_init();
-
-			con->plugin_ctx[p->id] = hctx;
+			if (con->plugin_ctx[p->id] == NULL) {
+				hctx = handler_ctx_init();
+				con->plugin_ctx[p->id] = hctx;
+			} else {
+				hctx = con->plugin_ctx[p->id];
+			}
 
 			if (rule->once) hctx->state = REWRITE_STATE_FINISHED;