http_static: code cleanup

[vpp.git] / src / plugins / http_static / http_static.c

diff --git a/src/plugins/http_static/http_static.c b/src/plugins/http_static/http_static.c
index 4e611a6..077371c 100644 (file)
--- a/src/plugins/http_static/http_static.c
+++ b/src/plugins/http_static/http_static.c
@@ -1,7 +1,5 @@
 /*
- * http_static.c - skeleton vpp engine plug-in
- *
- * Copyright (c) <current-year> <your-organization>
+ * Copyright (c) 2017-2022 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:
@@ -31,17 +29,85 @@
 
 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
 
-#define REPLY_MSG_ID_BASE hmp->msg_id_base
+#define REPLY_MSG_ID_BASE hsm->msg_id_base
 #include <vlibapi/api_helper_macros.h>
 
-http_static_main_t http_static_main;
+/** \brief Register a builtin GET or POST handler
+ */
+__clib_export void
+http_static_server_register_builtin_handler (void *fp, char *url,
+                                            http_req_method_t request_type)
+{
+  hss_main_t *hsm = &hss_main;
+  uword *p, *builtin_table;
+
+  builtin_table = (request_type == HTTP_REQ_GET) ? hsm->get_url_handlers :
+                                                  hsm->post_url_handlers;
+
+  p = hash_get_mem (builtin_table, url);
+
+  if (p)
+    {
+      clib_warning ("WARNING: attempt to replace handler for %s '%s' ignored",
+                   (request_type == HTTP_REQ_GET) ? "GET" : "POST", url);
+      return;
+    }
+
+  hash_set_mem (builtin_table, url, (uword) fp);
+
+  /*
+   * Need to update the hash table pointer in http_static_server_main
+   * in case we just expanded it...
+   */
+  if (request_type == HTTP_REQ_GET)
+    hsm->get_url_handlers = builtin_table;
+  else
+    hsm->post_url_handlers = builtin_table;
+}
+
+/** \brief API helper function for vl_api_http_static_enable_t messages
+ */
+static int
+hss_enable_api (u32 fifo_size, u32 cache_limit, u32 prealloc_fifos,
+               u32 private_segment_size, u8 *www_root, u8 *uri)
+{
+  hss_main_t *hsm = &hss_main;
+  int rv;
+
+  hsm->fifo_size = fifo_size;
+  hsm->cache_limit = cache_limit;
+  hsm->prealloc_fifos = prealloc_fifos;
+  hsm->private_segment_size = private_segment_size;
+  hsm->www_root = format (0, "%s%c", www_root, 0);
+  hsm->uri = format (0, "%s%c", uri, 0);
+
+  if (vec_len (hsm->www_root) < 2)
+    return VNET_API_ERROR_INVALID_VALUE;
+
+  if (hsm->app_index != ~0)
+    return VNET_API_ERROR_APP_ALREADY_ATTACHED;
+
+  vnet_session_enable_disable (hsm->vlib_main, 1 /* turn on TCP, etc. */);
+
+  rv = hss_create (hsm->vlib_main);
+  switch (rv)
+    {
+    case 0:
+      break;
+    default:
+      vec_free (hsm->www_root);
+      vec_free (hsm->uri);
+      return VNET_API_ERROR_INIT_FAILED;
+    }
+  return 0;
+}
 
 /* API message handler */
 static void vl_api_http_static_enable_t_handler
   (vl_api_http_static_enable_t * mp)
 {
   vl_api_http_static_enable_reply_t *rmp;
-  http_static_main_t *hmp = &http_static_main;
+  hss_main_t *hsm = &hss_main;
   int rv;
 
   mp->uri[ARRAY_LEN (mp->uri) - 1] = 0;
@@ -57,28 +123,23 @@ static void vl_api_http_static_enable_t_handler
 
 #include <http_static/http_static.api.c>
 static clib_error_t *
-http_static_init (vlib_main_t * vm)
+hss_api_init (vlib_main_t *vm)
 {
-  http_static_main_t *hmp = &http_static_main;
-
-  hmp->vlib_main = vm;
-  hmp->vnet_main = vnet_get_main ();
+  hss_main_t *hsm = &hss_main;
 
   /* Ask for a correctly-sized block of API message decode slots */
-  hmp->msg_id_base = setup_message_id_table ();
+  hsm->msg_id_base = setup_message_id_table ();
 
   return 0;
 }
 
-VLIB_INIT_FUNCTION (http_static_init);
+VLIB_INIT_FUNCTION (hss_api_init);
 
-/* *INDENT-OFF* */
 VLIB_PLUGIN_REGISTER () =
 {
   .version = VPP_BUILD_VER,
   .description = "HTTP Static Server"
 };
-/* *INDENT-ON* */
 
 /*
  * fd.io coding-style-patch-verification: ON