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authorDave Barach <dave@barachs.net>2019-09-17 09:47:35 -0400
committerFlorin Coras <florin.coras@gmail.com>2019-09-18 14:26:59 +0000
commit43765e2b4eaa8e1f2a5f1562414e04962c777ff3 (patch)
treee5a18e7ba42c4c7fb962d034e22a79d9beb89288 /src/plugins/builtinurl/builtins.c
parent4bf849043d6ffc1d3d43e65f381e310f425d01f7 (diff)
builtinurl: initial working attempt
Note that the builtin URLs are disabled by default. To activate, "builtinurl enable" or use the builtinurl_enable API. See .../extras/http/sample.md for some Hugo-friendly .md w/ embedded Javascript that accesses the builtin URLs. Type: feature Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I6d82d9292c41d6d2d90be73ba8a1a043fb20c986
Diffstat (limited to 'src/plugins/builtinurl/builtins.c')
-rw-r--r--src/plugins/builtinurl/builtins.c129
1 files changed, 129 insertions, 0 deletions
diff --git a/src/plugins/builtinurl/builtins.c b/src/plugins/builtinurl/builtins.c
new file mode 100644
index 00000000000..73582220995
--- /dev/null
+++ b/src/plugins/builtinurl/builtins.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/vnet.h>
+#include <builtinurl/builtinurl.h>
+#include <http_static/http_static.h>
+#include <vpp/app/version.h>
+
+int
+handle_get_version (u8 * request, http_session_t * hs)
+{
+ u8 *s = 0;
+
+ /* Build some json bullshit */
+ s = format (s, "{\"vpp_details\": {");
+ s = format (s, " \"version\": \"%s\",", VPP_BUILD_VER);
+ s = format (s, " \"build_date\": \"%s\"}}\r\n", VPP_BUILD_DATE);
+
+ hs->data = s;
+ hs->data_offset = 0;
+ hs->cache_pool_index = ~0;
+ hs->free_data = 1;
+ return 0;
+}
+
+void
+trim_path_from_request (u8 * s, char *path)
+{
+ u8 *cp;
+ int trim_length = strlen (path) + 1 /* remove '?' */ ;
+
+ /* Get rid of the path and question-mark */
+ vec_delete (s, trim_length, 0);
+
+ /* Tail trim irrelevant browser info */
+ cp = s;
+ while ((cp - s) < vec_len (s))
+ {
+ if (*cp == ' ')
+ {
+ /*
+ * Makes request a vector which happens to look
+ * like a c-string.
+ */
+ *cp = 0;
+ _vec_len (s) = cp - s;
+ break;
+ }
+ cp++;
+ }
+}
+
+int
+handle_get_interface_stats (u8 * request, http_session_t * hs)
+{
+ u8 *s = 0, *stats = 0;
+ u32 sw_if_index;
+ uword *p;
+ vnet_sw_interface_t *si;
+ u8 *format_vnet_sw_interface_cntrs (u8 * s, vnet_interface_main_t * im,
+ vnet_sw_interface_t * si, int json);
+
+ vnet_main_t *vnm = vnet_get_main ();
+
+ trim_path_from_request (request, "interface_stats.json");
+
+ /* get data */
+
+ p = hash_get (vnm->interface_main.hw_interface_by_name, request);
+ if (!p)
+ {
+ clib_warning ("Couldn't find interface '%v'", request);
+
+ s = format (s, "{\"interface_stats\": {");
+ s = format (s, " \"name\": \"%s\",", request);
+ s = format (s, " \"stats\": \"%s\"", "ERRORUnknownInterface");
+ s = format (s, "}}\r\n");
+ goto out;
+ }
+
+ sw_if_index = p[0];
+ si = vnet_get_sw_interface (vnm, sw_if_index);
+
+ stats = format_vnet_sw_interface_cntrs (stats, &vnm->interface_main, si,
+ 1 /* want json */ );
+ /* Build answer */
+ s = format (s, "{\"interface_stats\": {");
+ s = format (s, "\"name\": \"%s\",\n", request);
+ s = format (s, "%s", stats);
+ s = format (s, "}}\n");
+ vec_free (stats);
+
+out:
+ hs->data = s;
+ hs->data_offset = 0;
+ hs->cache_pool_index = ~0;
+ hs->free_data = 1;
+ return 0;
+}
+
+void
+builtinurl_handler_init (builtinurl_main_t * bm)
+{
+
+ bm->register_handler (handle_get_version, "version.json",
+ HTTP_BUILTIN_METHOD_GET);
+ bm->register_handler (handle_get_interface_stats,
+ "interface_stats.json", HTTP_BUILTIN_METHOD_POST);
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */