file: add support for disabling cache related precondition checks via handlers

[project/uhttpd.git] / file.c

diff --git a/file.c b/file.c
index 816df85..2a94818 100644 (file)
--- a/file.c
+++ b/file.c
@@ -235,7 +235,8 @@ uh_path_lookup(struct client *cl, const char *url)
           url with trailing slash appended */
        if (!slash) {
                uh_http_header(cl, 302, "Found");
-               ustream_printf(cl->us, "Content-Length: 0\r\n");
+               if (!uh_use_chunked(cl))
+                       ustream_printf(cl->us, "Content-Length: 0\r\n");
                ustream_printf(cl->us, "Location: %s%s%s\r\n\r\n",
                                &path_phys[docroot_len],
                                p.query ? "?" : "",
@@ -564,11 +565,12 @@ static void uh_file_free(struct client *cl)
 static void uh_file_data(struct client *cl, struct path_info *pi, int fd)
 {
        /* test preconditions */
-       if (!uh_file_if_modified_since(cl, &pi->stat) ||
-               !uh_file_if_match(cl, &pi->stat) ||
-               !uh_file_if_range(cl, &pi->stat) ||
-               !uh_file_if_unmodified_since(cl, &pi->stat) ||
-               !uh_file_if_none_match(cl, &pi->stat)) {
+       if (!cl->dispatch.no_cache &&
+           (!uh_file_if_modified_since(cl, &pi->stat) ||
+            !uh_file_if_match(cl, &pi->stat) ||
+            !uh_file_if_range(cl, &pi->stat) ||
+            !uh_file_if_unmodified_since(cl, &pi->stat) ||
+            !uh_file_if_none_match(cl, &pi->stat))) {
                ustream_printf(cl->us, "\r\n");
                uh_request_done(cl);
                close(fd);
@@ -862,6 +864,7 @@ void uh_handle_request(struct client *cl)
        char *url = blobmsg_data(blob_data(cl->hdr.head));
        char *error_handler;
 
+       blob_buf_init(&cl->hdr_response, 0);
        url = uh_handle_alias(url);
 
        uh_handler_run(cl, &url, false);