Fix mod_fastcgi prefix matching: match the prefix always against url, not the absolute filepath (regardless of check-local)

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-1.4.x@2150 152afb58-edef-0310-8abb-c4023f1b3aa9

NEWS

@@ -16,6 +16,7 @@ NEWS
   * Fix conditional interpretation of core options
   * Enable escaping of % and $ in redirect/rewrite; only two cases changed their behaviour: "%%" => "%", "$$" => "$"
   * Fix accesslog port (should be port from the connection, not the "server.port") (#1618)
+  * Fix mod_fastcgi prefix matching: match the prefix always against url, not the absolute filepath (regardless of check-local)
 
 - 1.4.19 - 2008-03-10
 

src/mod_fastcgi.c

@@ -3077,7 +3077,7 @@ SUBREQUEST_FUNC(mod_fastcgi_handle_subrequest) {
 
 		/* check if the next server has no load. */
 		ndx = hctx->ext->last_used_ndx + 1;
-		if(ndx >= hctx->ext->used || ndx < 0) ndx = 0;
+		if(ndx >= (int) hctx->ext->used || ndx < 0) ndx = 0;
 		host = hctx->ext->hosts[ndx];
 		if (host->load > 0) {
 			/* get backend with the least load. */
@@ -3483,13 +3483,12 @@ static handler_t fcgi_check_extension(server *srv, connection *con, void *p_d, i
 
 			ct_len = extension->key->used - 1;
 
-			if (s_len < ct_len) continue;
-
-			/* check extension in the form "/fcgi_pattern" */
-			if (*(extension->key->ptr) == '/') {
-				if (strncmp(fn->ptr, extension->key->ptr, ct_len) == 0)
+			/* check _url_ in the form "/fcgi_pattern" */
+			if (extension->key->ptr[0] == '/') {
+				if ((ct_len <= con->uri.path->used -1) &&
+				    (strncmp(con->uri.path->ptr, extension->key->ptr, ct_len) == 0))
 					break;
-			} else if (0 == strncmp(fn->ptr + s_len - ct_len, extension->key->ptr, ct_len)) {
+			} else if ((ct_len <= s_len) && (0 == strncmp(fn->ptr + s_len - ct_len, extension->key->ptr, ct_len))) {
 				/* check extension in the form ".fcg" */
 				break;
 			}