plugins/experimental/ts_lua/ts_lua_client_request.c - trafficserver - Git at Google

 /*
   Licensed to the Apache Software Foundation (ASF) under one
   or more contributor license agreements.  See the NOTICE file
   distributed with this work for additional information
   regarding copyright ownership.  The ASF licenses this file
   to you 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 <arpa/inet.h>
 #include "ts_lua_util.h"

 static void ts_lua_inject_client_request_client_addr_api(lua_State *L);
 static void ts_lua_inject_client_request_server_addr_api(lua_State *L);

 static int ts_lua_client_request_header_get(lua_State *L);
 static int ts_lua_client_request_header_set(lua_State *L);
 static int ts_lua_client_request_get_url(lua_State *L);
 static int ts_lua_client_request_get_pristine_url(lua_State *L);
 static int ts_lua_client_request_get_uri(lua_State *L);
 static int ts_lua_client_request_set_uri(lua_State *L);
 static int ts_lua_client_request_set_uri_args(lua_State *L);
 static int ts_lua_client_request_get_uri_args(lua_State *L);
 static int ts_lua_client_request_get_method(lua_State *L);
 static int ts_lua_client_request_set_method(lua_State *L);
 static int ts_lua_client_request_get_body_size(lua_State * L);
 static int ts_lua_client_request_get_header_size(lua_State *L);

 static void ts_lua_inject_client_request_socket_api(lua_State *L);
 static void ts_lua_inject_client_request_header_api(lua_State *L);
 static void ts_lua_inject_client_request_url_api(lua_State *L);
 static void ts_lua_inject_client_request_uri_api(lua_State *L);
 static void ts_lua_inject_client_request_args_api(lua_State *L);
 static void ts_lua_inject_client_request_method_api(lua_State *L);
 static void ts_lua_inject_client_request_body_size_api(lua_State *L);
 static void ts_lua_inject_client_request_header_size_api(lua_State *L);


 static int ts_lua_client_request_client_addr_get_ip(lua_State *L);
 static int ts_lua_client_request_client_addr_get_port(lua_State *L);
 static int ts_lua_client_request_client_addr_get_addr(lua_State *L);


 void
 ts_lua_inject_client_request_api(lua_State *L)
 {
     lua_newtable(L);

     ts_lua_inject_client_request_socket_api(L);
     ts_lua_inject_client_request_header_api(L);
     ts_lua_inject_client_request_url_api(L);
     ts_lua_inject_client_request_uri_api(L);
     ts_lua_inject_client_request_args_api(L);
     ts_lua_inject_client_request_method_api(L);
     ts_lua_inject_client_request_body_size_api(L);
     ts_lua_inject_client_request_header_size_api(L);

     lua_setfield(L, -2, "client_request");
 }

 static void
 ts_lua_inject_client_request_socket_api(lua_State *L)
 {
     ts_lua_inject_client_request_client_addr_api(L);
     ts_lua_inject_client_request_server_addr_api(L);
 }

 static void
 ts_lua_inject_client_request_client_addr_api(lua_State *L)
 {
     lua_newtable(L);

     lua_pushcfunction(L, ts_lua_client_request_client_addr_get_ip);
     lua_setfield(L, -2, "get_ip");

     lua_pushcfunction(L, ts_lua_client_request_client_addr_get_port);
     lua_setfield(L, -2, "get_port");

     lua_pushcfunction(L, ts_lua_client_request_client_addr_get_addr);
     lua_setfield(L, -2, "get_addr");

     lua_setfield(L, -2, "client_addr");
 }

 static void
 ts_lua_inject_client_request_server_addr_api(lua_State *L ATS_UNUSED)
 {
     return;
 }

 static void
 ts_lua_inject_client_request_header_api(lua_State *L)
 {
     lua_newtable(L);         /* .header */

     lua_createtable(L, 0, 2);       /* metatable for .header */

     lua_pushcfunction(L, ts_lua_client_request_header_get);
     lua_setfield(L, -2, "__index");
     lua_pushcfunction(L, ts_lua_client_request_header_set);
     lua_setfield(L, -2, "__newindex");

     lua_setmetatable(L, -2);

     lua_setfield(L, -2, "header");
 }

 static int
 ts_lua_client_request_header_get(lua_State *L)
 {
     const char  *key;
     const char  *val;
     int         val_len;
     size_t      key_len;

     TSMLoc      field_loc;
     ts_lua_http_ctx  *http_ctx;

     http_ctx = ts_lua_get_http_ctx(L);

     /*  we skip the first argument that is the table */
     key = luaL_checklstring(L, 2, &key_len);

     if (key && key_len) {

         field_loc = TSMimeHdrFieldFind(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, key, key_len);
         if (field_loc) {
             val = TSMimeHdrFieldValueStringGet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc, -1, &val_len);
             lua_pushlstring(L, val, val_len);
             TSHandleMLocRelease(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc);

         } else {
             lua_pushnil(L);
         }

     } else {
         lua_pushnil(L);
     }

     return 1;
 }

 static int
 ts_lua_client_request_header_set(lua_State *L)
 {
     const char  *key;
     const char  *val;
     size_t      val_len;
     size_t      key_len;
     int         remove;

     TSMLoc      field_loc;

     ts_lua_http_ctx  *http_ctx;

     http_ctx = ts_lua_get_http_ctx(L);

     remove = 0;
     val = NULL;

     /*   we skip the first argument that is the table */
     key = luaL_checklstring(L, 2, &key_len);
     if (lua_isnil(L, 3)) {
         remove = 1;
     } else {
         val = luaL_checklstring(L, 3, &val_len);
     }

     field_loc = TSMimeHdrFieldFind(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, key, key_len);

     if (remove) {
         if (field_loc) {
             TSMimeHdrFieldDestroy(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc);
         }

     } else if (field_loc) {
         TSMimeHdrFieldValueStringSet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc, 0, val, val_len);

     } else if (TSMimeHdrFieldCreateNamed(http_ctx->client_request_bufp, http_ctx->client_request_hdrp,
                 key, key_len, &field_loc) != TS_SUCCESS) {
         TSError("[%s] TSMimeHdrFieldCreateNamed error", __FUNCTION__);
         return 0;

     } else {
         TSMimeHdrFieldValueStringSet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc, -1, val, val_len);
         TSMimeHdrFieldAppend(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc);
     }

     if (field_loc)
         TSHandleMLocRelease(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc);

     return 0;
 }

 static void
 ts_lua_inject_client_request_url_api(lua_State *L)
 {
     lua_pushcfunction(L, ts_lua_client_request_get_url);
     lua_setfield(L, -2, "get_url");

     lua_pushcfunction(L, ts_lua_client_request_get_pristine_url);
     lua_setfield(L, -2, "get_pristine_url");
 }

 static void
 ts_lua_inject_client_request_uri_api(lua_State *L)
 {
     lua_pushcfunction(L, ts_lua_client_request_set_uri);
     lua_setfield(L, -2, "set_uri");

     lua_pushcfunction(L, ts_lua_client_request_get_uri);
     lua_setfield(L, -2, "get_uri");
 }

 static int
 ts_lua_client_request_get_url(lua_State *L)
 {
     char        *url;
     int         url_len;

     ts_lua_http_ctx  *http_ctx;

     http_ctx = ts_lua_get_http_ctx(L);

     url = TSUrlStringGet(http_ctx->client_request_bufp, http_ctx->client_request_url, &url_len);

     if (url) {
         lua_pushlstring(L, url, url_len);
         TSfree(url);

     } else {
         lua_pushnil(L);
     }

     return 1;
 }

 static int
 ts_lua_client_request_get_pristine_url(lua_State *L)
 {
     char        *url;
     int         url_len;

     TSMBuffer   bufp;
     TSMLoc      url_loc;

     ts_lua_http_ctx  *http_ctx;

     http_ctx = ts_lua_get_http_ctx(L);

     if (TSHttpTxnPristineUrlGet(http_ctx->txnp, &bufp, &url_loc) != TS_SUCCESS)
         return 0;

     url = TSUrlStringGet(bufp, url_loc, &url_len);

     if (url) {
         lua_pushlstring(L, url, url_len);
         TSfree(url);

     } else {
         lua_pushnil(L);
     }

     TSHandleMLocRelease(bufp, NULL, url_loc);

     return 1;
 }

 static int
 ts_lua_client_request_get_uri(lua_State *L)
 {
     char        uri[TS_LUA_MAX_URL_LENGTH];
     const char  *path;
     int         path_len;
     int         uri_len;

     ts_lua_http_ctx  *http_ctx;

     http_ctx = ts_lua_get_http_ctx(L);

     path = TSUrlPathGet(http_ctx->client_request_bufp, http_ctx->client_request_url, &path_len);

     uri_len = snprintf(uri, TS_LUA_MAX_URL_LENGTH, "/%.*s", path_len, path);

     lua_pushlstring(L, uri, uri_len);

     return 1;
 }

 static int
 ts_lua_client_request_set_uri(lua_State *L)
 {
     const char  *path;
     size_t      path_len;

     ts_lua_http_ctx  *http_ctx;

     http_ctx = ts_lua_get_http_ctx(L);

     path = luaL_checklstring(L, 1, &path_len);

     if (*path == '/') {
         path++;
         path_len--;
     }

     TSUrlPathSet(http_ctx->client_request_bufp, http_ctx->client_request_url, path, path_len);

     return 0;
 }


 static void
 ts_lua_inject_client_request_args_api(lua_State *L)
 {
     lua_pushcfunction(L, ts_lua_client_request_set_uri_args);
     lua_setfield(L, -2, "set_uri_args");

     lua_pushcfunction(L, ts_lua_client_request_get_uri_args);
     lua_setfield(L, -2, "get_uri_args");
 }

 static int
 ts_lua_client_request_get_uri_args(lua_State *L)
 {
     const char  *param;
     int         param_len;

     ts_lua_http_ctx  *http_ctx;

     http_ctx = ts_lua_get_http_ctx(L);

     param = TSUrlHttpQueryGet(http_ctx->client_request_bufp, http_ctx->client_request_url, &param_len);

     if (param && param_len > 0) {
         lua_pushlstring(L, param, param_len);
     } else {
         lua_pushnil(L);
     }

     return 1;
 }

 static int
 ts_lua_client_request_set_uri_args(lua_State *L)
 {
     const char  *param;
     size_t      param_len;

     ts_lua_http_ctx  *http_ctx;

     http_ctx = ts_lua_get_http_ctx(L);

     param = luaL_checklstring(L, 1, &param_len);
     TSUrlHttpQuerySet(http_ctx->client_request_bufp, http_ctx->client_request_url, param, param_len);

     return 0;
 }

 static int
 ts_lua_client_request_client_addr_get_ip(lua_State *L)
 {
     struct sockaddr const   *client_ip;
     char                    cip[128];
     ts_lua_http_ctx         *http_ctx;

     http_ctx = ts_lua_get_http_ctx(L);

     client_ip = TSHttpTxnClientAddrGet(http_ctx->txnp);

     if (client_ip == NULL) {
         lua_pushnil(L);

     } else {

         if (client_ip->sa_family == AF_INET) {
             inet_ntop(AF_INET, (const void *)&((struct sockaddr_in *)client_ip)->sin_addr, cip, sizeof(cip));
         } else {
             inet_ntop(AF_INET6, (const void *)&((struct sockaddr_in6 *)client_ip)->sin6_addr, cip, sizeof(cip));
         }

         lua_pushstring(L, cip);
     }

     return 1;
 }

 static int
 ts_lua_client_request_client_addr_get_port(lua_State *L)
 {
     struct sockaddr const   *client_ip;
     ts_lua_http_ctx         *http_ctx;
     int                     port;

     http_ctx = ts_lua_get_http_ctx(L);

     client_ip = TSHttpTxnClientAddrGet(http_ctx->txnp);

     if (client_ip == NULL) {
         lua_pushnil(L);

     } else {

         if (client_ip->sa_family == AF_INET) {
             port = ((struct sockaddr_in *)client_ip)->sin_port;
         } else {
             port = ((struct sockaddr_in6 *)client_ip)->sin6_port;
         }

         lua_pushnumber(L, port);
     }

     return 1;
 }

 static int
 ts_lua_client_request_client_addr_get_addr(lua_State *L)
 {
     struct sockaddr const   *client_ip;
     ts_lua_http_ctx         *http_ctx;
     int                     port;
     int                     family;
     char                    cip[128];

     http_ctx = ts_lua_get_http_ctx(L);

     client_ip = TSHttpTxnClientAddrGet(http_ctx->txnp);

     if (client_ip == NULL) {
         lua_pushnil(L);
         lua_pushnil(L);
         lua_pushnil(L);

     } else {

         if (client_ip->sa_family == AF_INET) {
             port = ((struct sockaddr_in *)client_ip)->sin_port;
             inet_ntop(AF_INET, (const void *)&((struct sockaddr_in *)client_ip)->sin_addr, cip, sizeof(cip));
             family = AF_INET;
         } else {
             port = ((struct sockaddr_in6 *)client_ip)->sin6_port;
             inet_ntop(AF_INET6, (const void *)&((struct sockaddr_in6 *)client_ip)->sin6_addr, cip, sizeof(cip));
             family = AF_INET6;
         }

         lua_pushstring(L, cip);
         lua_pushnumber(L, port);
         lua_pushnumber(L, family);
     }

     return 3;
 }

 static void
 ts_lua_inject_client_request_method_api(lua_State *L)
 {
     lua_pushcfunction(L, ts_lua_client_request_get_method);
     lua_setfield(L, -2, "get_method");

     lua_pushcfunction(L, ts_lua_client_request_set_method);
     lua_setfield(L, -2, "set_method");
 }

 static int
 ts_lua_client_request_get_method(lua_State *L)
 {
     const char  *method;
     int         method_len;

     ts_lua_http_ctx  *http_ctx;

     http_ctx = ts_lua_get_http_ctx(L);

     method = TSHttpHdrMethodGet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, &method_len);

     if (method && method_len) {
         lua_pushlstring(L, method, method_len);
     } else {
         lua_pushnil(L);
     }

     return 1;
 }

 static int
 ts_lua_client_request_set_method(lua_State *L)
 {
     const char  *method;
     size_t      method_len;

     ts_lua_http_ctx  *http_ctx;

     http_ctx = ts_lua_get_http_ctx(L);

     method = luaL_checklstring(L, 1, &method_len);

     if (method) {
         TSHttpHdrMethodSet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, method, method_len);
     }

     return 0;
 }

 static void
 ts_lua_inject_client_request_body_size_api(lua_State *L)
 {
     lua_pushcfunction(L, ts_lua_client_request_get_body_size);
     lua_setfield(L, -2, "get_body_size");
 }

 static int
 ts_lua_client_request_get_body_size(lua_State *L)
 {
     int64_t body_size;
     ts_lua_http_ctx  *http_ctx;

     http_ctx = ts_lua_get_http_ctx(L);

     body_size = TSHttpTxnClientReqBodyBytesGet(http_ctx->txnp);
     lua_pushnumber(L, body_size);

     return 1;
 }

 static void
 ts_lua_inject_client_request_header_size_api(lua_State *L)
 {
     lua_pushcfunction(L, ts_lua_client_request_get_header_size);
     lua_setfield(L, -2, "get_header_size");
 }

 static int
 ts_lua_client_request_get_header_size(lua_State *L)
 {
     int header_size;
     ts_lua_http_ctx  *http_ctx;

     http_ctx = ts_lua_get_http_ctx(L);

     header_size = TSHttpTxnClientReqHdrBytesGet(http_ctx->txnp);
     lua_pushnumber(L,header_size);

     return 1;
 }
	/*
	Licensed to the Apache Software Foundation (ASF) under one
	or more contributor license agreements. See the NOTICE file
	distributed with this work for additional information
	regarding copyright ownership. The ASF licenses this file
	to you 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 <arpa/inet.h>
	#include "ts_lua_util.h"

	static void ts_lua_inject_client_request_client_addr_api(lua_State *L);
	static void ts_lua_inject_client_request_server_addr_api(lua_State *L);

	static int ts_lua_client_request_header_get(lua_State *L);
	static int ts_lua_client_request_header_set(lua_State *L);
	static int ts_lua_client_request_get_url(lua_State *L);
	static int ts_lua_client_request_get_pristine_url(lua_State *L);
	static int ts_lua_client_request_get_uri(lua_State *L);
	static int ts_lua_client_request_set_uri(lua_State *L);
	static int ts_lua_client_request_set_uri_args(lua_State *L);
	static int ts_lua_client_request_get_uri_args(lua_State *L);
	static int ts_lua_client_request_get_method(lua_State *L);
	static int ts_lua_client_request_set_method(lua_State *L);
	static int ts_lua_client_request_get_body_size(lua_State * L);
	static int ts_lua_client_request_get_header_size(lua_State *L);

	static void ts_lua_inject_client_request_socket_api(lua_State *L);
	static void ts_lua_inject_client_request_header_api(lua_State *L);
	static void ts_lua_inject_client_request_url_api(lua_State *L);
	static void ts_lua_inject_client_request_uri_api(lua_State *L);
	static void ts_lua_inject_client_request_args_api(lua_State *L);
	static void ts_lua_inject_client_request_method_api(lua_State *L);
	static void ts_lua_inject_client_request_body_size_api(lua_State *L);
	static void ts_lua_inject_client_request_header_size_api(lua_State *L);


	static int ts_lua_client_request_client_addr_get_ip(lua_State *L);
	static int ts_lua_client_request_client_addr_get_port(lua_State *L);
	static int ts_lua_client_request_client_addr_get_addr(lua_State *L);


	void
	ts_lua_inject_client_request_api(lua_State *L)
	{
	lua_newtable(L);

	ts_lua_inject_client_request_socket_api(L);
	ts_lua_inject_client_request_header_api(L);
	ts_lua_inject_client_request_url_api(L);
	ts_lua_inject_client_request_uri_api(L);
	ts_lua_inject_client_request_args_api(L);
	ts_lua_inject_client_request_method_api(L);
	ts_lua_inject_client_request_body_size_api(L);
	ts_lua_inject_client_request_header_size_api(L);

	lua_setfield(L, -2, "client_request");
	}

	static void
	ts_lua_inject_client_request_socket_api(lua_State *L)
	{
	ts_lua_inject_client_request_client_addr_api(L);
	ts_lua_inject_client_request_server_addr_api(L);
	}

	static void
	ts_lua_inject_client_request_client_addr_api(lua_State *L)
	{
	lua_newtable(L);

	lua_pushcfunction(L, ts_lua_client_request_client_addr_get_ip);
	lua_setfield(L, -2, "get_ip");

	lua_pushcfunction(L, ts_lua_client_request_client_addr_get_port);
	lua_setfield(L, -2, "get_port");

	lua_pushcfunction(L, ts_lua_client_request_client_addr_get_addr);
	lua_setfield(L, -2, "get_addr");

	lua_setfield(L, -2, "client_addr");
	}

	static void
	ts_lua_inject_client_request_server_addr_api(lua_State *L ATS_UNUSED)
	{
	return;
	}

	static void
	ts_lua_inject_client_request_header_api(lua_State *L)
	{
	lua_newtable(L); /* .header */

	lua_createtable(L, 0, 2); /* metatable for .header */

	lua_pushcfunction(L, ts_lua_client_request_header_get);
	lua_setfield(L, -2, "__index");
	lua_pushcfunction(L, ts_lua_client_request_header_set);
	lua_setfield(L, -2, "__newindex");

	lua_setmetatable(L, -2);

	lua_setfield(L, -2, "header");
	}

	static int
	ts_lua_client_request_header_get(lua_State *L)
	{
	const char *key;
	const char *val;
	int val_len;
	size_t key_len;

	TSMLoc field_loc;
	ts_lua_http_ctx *http_ctx;

	http_ctx = ts_lua_get_http_ctx(L);

	/* we skip the first argument that is the table */
	key = luaL_checklstring(L, 2, &key_len);

	if (key && key_len) {

	field_loc = TSMimeHdrFieldFind(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, key, key_len);
	if (field_loc) {
	val = TSMimeHdrFieldValueStringGet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc, -1, &val_len);
	lua_pushlstring(L, val, val_len);
	TSHandleMLocRelease(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc);

	} else {
	lua_pushnil(L);
	}

	} else {
	lua_pushnil(L);
	}

	return 1;
	}

	static int
	ts_lua_client_request_header_set(lua_State *L)
	{
	const char *key;
	const char *val;
	size_t val_len;
	size_t key_len;
	int remove;

	TSMLoc field_loc;

	ts_lua_http_ctx *http_ctx;

	http_ctx = ts_lua_get_http_ctx(L);

	remove = 0;
	val = NULL;

	/* we skip the first argument that is the table */
	key = luaL_checklstring(L, 2, &key_len);
	if (lua_isnil(L, 3)) {
	remove = 1;
	} else {
	val = luaL_checklstring(L, 3, &val_len);
	}

	field_loc = TSMimeHdrFieldFind(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, key, key_len);

	if (remove) {
	if (field_loc) {
	TSMimeHdrFieldDestroy(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc);
	}

	} else if (field_loc) {
	TSMimeHdrFieldValueStringSet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc, 0, val, val_len);

	} else if (TSMimeHdrFieldCreateNamed(http_ctx->client_request_bufp, http_ctx->client_request_hdrp,
	key, key_len, &field_loc) != TS_SUCCESS) {
	TSError("[%s] TSMimeHdrFieldCreateNamed error", __FUNCTION__);
	return 0;

	} else {
	TSMimeHdrFieldValueStringSet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc, -1, val, val_len);
	TSMimeHdrFieldAppend(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc);
	}

	if (field_loc)
	TSHandleMLocRelease(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc);

	return 0;
	}

	static void
	ts_lua_inject_client_request_url_api(lua_State *L)
	{
	lua_pushcfunction(L, ts_lua_client_request_get_url);
	lua_setfield(L, -2, "get_url");

	lua_pushcfunction(L, ts_lua_client_request_get_pristine_url);
	lua_setfield(L, -2, "get_pristine_url");
	}

	static void
	ts_lua_inject_client_request_uri_api(lua_State *L)
	{
	lua_pushcfunction(L, ts_lua_client_request_set_uri);
	lua_setfield(L, -2, "set_uri");

	lua_pushcfunction(L, ts_lua_client_request_get_uri);
	lua_setfield(L, -2, "get_uri");
	}

	static int
	ts_lua_client_request_get_url(lua_State *L)
	{
	char *url;
	int url_len;

	ts_lua_http_ctx *http_ctx;

	http_ctx = ts_lua_get_http_ctx(L);

	url = TSUrlStringGet(http_ctx->client_request_bufp, http_ctx->client_request_url, &url_len);

	if (url) {
	lua_pushlstring(L, url, url_len);
	TSfree(url);

	} else {
	lua_pushnil(L);
	}

	return 1;
	}

	static int
	ts_lua_client_request_get_pristine_url(lua_State *L)
	{
	char *url;
	int url_len;

	TSMBuffer bufp;
	TSMLoc url_loc;

	ts_lua_http_ctx *http_ctx;

	http_ctx = ts_lua_get_http_ctx(L);

	if (TSHttpTxnPristineUrlGet(http_ctx->txnp, &bufp, &url_loc) != TS_SUCCESS)
	return 0;

	url = TSUrlStringGet(bufp, url_loc, &url_len);

	if (url) {
	lua_pushlstring(L, url, url_len);
	TSfree(url);

	} else {
	lua_pushnil(L);
	}

	TSHandleMLocRelease(bufp, NULL, url_loc);

	return 1;
	}

	static int
	ts_lua_client_request_get_uri(lua_State *L)
	{
	char uri[TS_LUA_MAX_URL_LENGTH];
	const char *path;
	int path_len;
	int uri_len;

	ts_lua_http_ctx *http_ctx;

	http_ctx = ts_lua_get_http_ctx(L);

	path = TSUrlPathGet(http_ctx->client_request_bufp, http_ctx->client_request_url, &path_len);

	uri_len = snprintf(uri, TS_LUA_MAX_URL_LENGTH, "/%.*s", path_len, path);

	lua_pushlstring(L, uri, uri_len);

	return 1;
	}

	static int
	ts_lua_client_request_set_uri(lua_State *L)
	{
	const char *path;
	size_t path_len;

	ts_lua_http_ctx *http_ctx;

	http_ctx = ts_lua_get_http_ctx(L);

	path = luaL_checklstring(L, 1, &path_len);

	if (*path == '/') {
	path++;
	path_len--;
	}

	TSUrlPathSet(http_ctx->client_request_bufp, http_ctx->client_request_url, path, path_len);

	return 0;
	}


	static void
	ts_lua_inject_client_request_args_api(lua_State *L)
	{
	lua_pushcfunction(L, ts_lua_client_request_set_uri_args);
	lua_setfield(L, -2, "set_uri_args");

	lua_pushcfunction(L, ts_lua_client_request_get_uri_args);
	lua_setfield(L, -2, "get_uri_args");
	}

	static int
	ts_lua_client_request_get_uri_args(lua_State *L)
	{
	const char *param;
	int param_len;

	ts_lua_http_ctx *http_ctx;

	http_ctx = ts_lua_get_http_ctx(L);

	param = TSUrlHttpQueryGet(http_ctx->client_request_bufp, http_ctx->client_request_url, &param_len);

	if (param && param_len > 0) {
	lua_pushlstring(L, param, param_len);
	} else {
	lua_pushnil(L);
	}

	return 1;
	}

	static int
	ts_lua_client_request_set_uri_args(lua_State *L)
	{
	const char *param;
	size_t param_len;

	ts_lua_http_ctx *http_ctx;

	http_ctx = ts_lua_get_http_ctx(L);

	param = luaL_checklstring(L, 1, &param_len);
	TSUrlHttpQuerySet(http_ctx->client_request_bufp, http_ctx->client_request_url, param, param_len);

	return 0;
	}

	static int
	ts_lua_client_request_client_addr_get_ip(lua_State *L)
	{
	struct sockaddr const *client_ip;
	char cip[128];
	ts_lua_http_ctx *http_ctx;

	http_ctx = ts_lua_get_http_ctx(L);

	client_ip = TSHttpTxnClientAddrGet(http_ctx->txnp);

	if (client_ip == NULL) {
	lua_pushnil(L);

	} else {

	if (client_ip->sa_family == AF_INET) {
	inet_ntop(AF_INET, (const void )&((struct sockaddr_in )client_ip)->sin_addr, cip, sizeof(cip));
	} else {
	inet_ntop(AF_INET6, (const void )&((struct sockaddr_in6 )client_ip)->sin6_addr, cip, sizeof(cip));
	}

	lua_pushstring(L, cip);
	}

	return 1;
	}

	static int
	ts_lua_client_request_client_addr_get_port(lua_State *L)
	{
	struct sockaddr const *client_ip;
	ts_lua_http_ctx *http_ctx;
	int port;

	http_ctx = ts_lua_get_http_ctx(L);

	client_ip = TSHttpTxnClientAddrGet(http_ctx->txnp);

	if (client_ip == NULL) {
	lua_pushnil(L);

	} else {

	if (client_ip->sa_family == AF_INET) {
	port = ((struct sockaddr_in *)client_ip)->sin_port;
	} else {
	port = ((struct sockaddr_in6 *)client_ip)->sin6_port;
	}

	lua_pushnumber(L, port);
	}

	return 1;
	}

	static int
	ts_lua_client_request_client_addr_get_addr(lua_State *L)
	{
	struct sockaddr const *client_ip;
	ts_lua_http_ctx *http_ctx;
	int port;
	int family;
	char cip[128];

	http_ctx = ts_lua_get_http_ctx(L);

	client_ip = TSHttpTxnClientAddrGet(http_ctx->txnp);

	if (client_ip == NULL) {
	lua_pushnil(L);
	lua_pushnil(L);
	lua_pushnil(L);

	} else {

	if (client_ip->sa_family == AF_INET) {
	port = ((struct sockaddr_in *)client_ip)->sin_port;
	inet_ntop(AF_INET, (const void )&((struct sockaddr_in )client_ip)->sin_addr, cip, sizeof(cip));
	family = AF_INET;
	} else {
	port = ((struct sockaddr_in6 *)client_ip)->sin6_port;
	inet_ntop(AF_INET6, (const void )&((struct sockaddr_in6 )client_ip)->sin6_addr, cip, sizeof(cip));
	family = AF_INET6;
	}

	lua_pushstring(L, cip);
	lua_pushnumber(L, port);
	lua_pushnumber(L, family);
	}

	return 3;
	}

	static void
	ts_lua_inject_client_request_method_api(lua_State *L)
	{
	lua_pushcfunction(L, ts_lua_client_request_get_method);
	lua_setfield(L, -2, "get_method");

	lua_pushcfunction(L, ts_lua_client_request_set_method);
	lua_setfield(L, -2, "set_method");
	}

	static int
	ts_lua_client_request_get_method(lua_State *L)
	{
	const char *method;
	int method_len;

	ts_lua_http_ctx *http_ctx;

	http_ctx = ts_lua_get_http_ctx(L);

	method = TSHttpHdrMethodGet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, &method_len);

	if (method && method_len) {
	lua_pushlstring(L, method, method_len);
	} else {
	lua_pushnil(L);
	}

	return 1;
	}

	static int
	ts_lua_client_request_set_method(lua_State *L)
	{
	const char *method;
	size_t method_len;

	ts_lua_http_ctx *http_ctx;

	http_ctx = ts_lua_get_http_ctx(L);

	method = luaL_checklstring(L, 1, &method_len);

	if (method) {
	TSHttpHdrMethodSet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, method, method_len);
	}

	return 0;
	}

	static void
	ts_lua_inject_client_request_body_size_api(lua_State *L)
	{
	lua_pushcfunction(L, ts_lua_client_request_get_body_size);
	lua_setfield(L, -2, "get_body_size");
	}

	static int
	ts_lua_client_request_get_body_size(lua_State *L)
	{
	int64_t body_size;
	ts_lua_http_ctx *http_ctx;

	http_ctx = ts_lua_get_http_ctx(L);

	body_size = TSHttpTxnClientReqBodyBytesGet(http_ctx->txnp);
	lua_pushnumber(L, body_size);

	return 1;
	}

	static void
	ts_lua_inject_client_request_header_size_api(lua_State *L)
	{
	lua_pushcfunction(L, ts_lua_client_request_get_header_size);
	lua_setfield(L, -2, "get_header_size");
	}

	static int
	ts_lua_client_request_get_header_size(lua_State *L)
	{
	int header_size;
	ts_lua_http_ctx *http_ctx;

	http_ctx = ts_lua_get_http_ctx(L);

	header_size = TSHttpTxnClientReqHdrBytesGet(http_ctx->txnp);
	lua_pushnumber(L,header_size);

	return 1;
	}