added support to have a PATH_INFO on /prefix if check-local is disabled

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-1.3.x@477 152afb58-edef-0310-8abb-c4023f1b3aa9

src/mod_fastcgi.c

@@ -329,8 +329,6 @@ typedef struct {
 	int       fd;        /* fd to the fastcgi process */
 	int       fde_ndx;   /* index into the fd-event buffer */
 
-	size_t    path_info_offset; /* start of path_info in uri.path */
-	
 	pid_t     pid;
 	int       got_proc;
 	
@@ -2969,7 +2967,6 @@ static handler_t fcgi_check_extension(server *srv, connection *con, void *p_d, i
 	size_t k, i;
 	buffer *fn;
 	fcgi_extension *extension = NULL;
-	size_t path_info_offset;
 	
 	/* Possibly, we processed already this request */
 	if (con->file_started == 1) return HANDLER_GO_ON;
@@ -2990,11 +2987,9 @@ static handler_t fcgi_check_extension(server *srv, connection *con, void *p_d, i
 		fcgi_patch_connection(srv, con, p, CONST_BUF_LEN(patch));
 	}
 	
-	path_info_offset = 0;
-	
 	/* check if extension matches */
 	for (k = 0; k < p->conf.exts->used; k++) {
-		size_t ct_len;
+		size_t ct_len; /* length of the config entry */
 		
 		extension = p->conf.exts->exts[k];
 		
@@ -3006,13 +3001,6 @@ static handler_t fcgi_check_extension(server *srv, connection *con, void *p_d, i
 		
 		/* check extension in the form "/fcgi_pattern" */
 		if (*(extension->key->ptr) == '/' && strncmp(fn->ptr, extension->key->ptr, ct_len) == 0) {
-			if (s_len > ct_len + 1) {
-				char *pi_offset;
-				
-				if (0 != (pi_offset = strchr(fn->ptr + ct_len + 1, '/'))) {
-					path_info_offset = pi_offset - fn->ptr;
-				}
-			}
 			break;
 		} else if (0 == strncmp(fn->ptr + s_len - ct_len, extension->key->ptr, ct_len)) {
 			/* check extension in the form ".fcg" */
@@ -3052,9 +3040,10 @@ static handler_t fcgi_check_extension(server *srv, connection *con, void *p_d, i
 		if (uri_path_handler) {
 			if (host->check_local == 0) {
 				handler_ctx *hctx;
+				char *pathinfo;
+				
 				hctx = handler_ctx_init();
 				
-				hctx->path_info_offset = path_info_offset;
 				hctx->remote_conn      = con;
 				hctx->plugin_data      = p;
 				hctx->host             = host;
@@ -3072,13 +3061,44 @@ static handler_t fcgi_check_extension(server *srv, connection *con, void *p_d, i
 				if (con->conf.log_request_handling) {
 					log_error_write(srv, __FILE__, __LINE__, "s", "handling it in mod_fastcgi");
 				}
+				
+				/* the prefix is the SCRIPT_NAME, 
+				 * everthing from start to the next slash
+				 * this is important for check-local = "disable"
+				 * 
+				 * if prefix = /admin.fcgi
+				 * 
+				 * /admin.fcgi/foo/bar
+				 * 
+				 * SCRIPT_NAME = /admin.fcgi
+				 * PATH_INFO   = /foo/bar
+				 * 
+				 * if prefix = /fcgi-bin/
+				 * 
+				 * /fcgi-bin/foo/bar
+				 * 
+				 * SCRIPT_NAME = /fcgi-bin/foo
+				 * PATH_INFO   = /bar
+				 * 
+				 */
+				
+				/* the rewrite is only done for /prefix/? matches */
+				if (extension->key->ptr[0] == '/' &&
+				    con->uri.path->used > extension->key->used &&
+				    NULL != (pathinfo = strchr(con->uri.path->ptr + extension->key->used - 1, '/'))) {
+					/* rewrite uri.path and pathinfo */ 
+					
+					buffer_copy_string(con->request.pathinfo, pathinfo);
+					
+					con->uri.path->used -= con->request.pathinfo->used - 1;
+					con->uri.path->ptr[con->uri.path->used - 1] = '\0';
+				}
 			}
 			return HANDLER_GO_ON;
 		} else {
 			handler_ctx *hctx;
 			hctx = handler_ctx_init();
 			
-			hctx->path_info_offset = path_info_offset;
 			hctx->remote_conn      = con;
 			hctx->plugin_data      = p;
 			hctx->host             = host;