use the redirect function in the example code

[project/uclient.git] / uclient-http.c

diff --git a/uclient-http.c b/uclient-http.c
index c344513..0ce43c2 100644 (file)
--- a/uclient-http.c
+++ b/uclient-http.c
@@ -501,6 +501,19 @@ static void uclient_parse_http_line(struct uclient_http *uh, char *data)
        char *sep;
 
        if (uh->state == HTTP_STATE_REQUEST_DONE) {
+               char *code;
+
+               /* HTTP/1.1 */
+               strsep(&data, " ");
+
+               code = strsep(&data, " ");
+               if (!code)
+                       goto error;
+
+               uh->uc.status_code = strtoul(code, &sep, 10);
+               if (sep && *sep)
+                       goto error;
+
                uh->state = HTTP_STATE_RECV_HEADERS;
                return;
        }
@@ -524,6 +537,12 @@ static void uclient_parse_http_line(struct uclient_http *uh, char *data)
                sep++;
 
        blobmsg_add_string(&uh->meta, name, sep);
+       return;
+
+error:
+       uh->uc.status_code = 400;
+       uh->eof = true;
+       uclient_notify_eof(uh);
 }
 
 static void __uclient_notify_read(struct uclient_http *uh)
@@ -831,7 +850,45 @@ uclient_http_read(struct uclient *cl, char *buf, unsigned int len)
        return len;
 }
 
-const struct uclient_backend uclient_backend_http __hidden = {
+bool uclient_http_redirect(struct uclient *cl)
+{
+       struct uclient_http *uh = container_of(cl, struct uclient_http, uc);
+       struct blobmsg_policy location = {
+               .name = "location",
+               .type = BLOBMSG_TYPE_STRING,
+       };
+       struct uclient_url *url = cl->url;
+       struct blob_attr *tb;
+
+       if (cl->backend != &uclient_backend_http)
+               return false;
+
+       switch (cl->status_code) {
+       case 301:
+       case 302:
+       case 307:
+               break;
+       default:
+               return false;
+       }
+
+       blobmsg_parse(&location, 1, &tb, blob_data(uh->meta.head), blob_len(uh->meta.head));
+       if (!tb)
+               return false;
+
+       url = uclient_get_url(blobmsg_data(tb), url->auth);
+       if (!url)
+               return false;
+
+       free(cl->url);
+       cl->url = url;
+       uclient_http_connect(cl);
+       uclient_http_request_done(cl);
+
+       return true;
+}
+
+const struct uclient_backend uclient_backend_http = {
        .prefix = uclient_http_prefix,
 
        .alloc = uclient_http_alloc,