Use unix domain socket to process lua handlers

APIs/api.lua

@@ -1,10 +1,70 @@
+
+package.cpath = __api__.apiroot..'/?.so'
+require("antd")
+
+local readline = function()
+    local s = ""
+    repeat
+        local c = modules.std().antd_recv(HTTP_REQUEST.id,1)
+        if c ~= 0 and c ~= 10 then
+            s = s..utf8.char(c)
+        end
+    until(c == 0 or c == 10)
+    return s
+end
+local read_header =function()
+    repeat
+        local l = readline()
+        if l ~= '\r' then
+            if l == "HTTP_REQUEST" or l == "request" or l == "COOKIE" or l == "REQUEST_HEADER" or l == "REQUEST_DATA" then
+                coroutine.yield(l, "LUA_TABLE")
+            else
+                local l1 = readline()
+                if l1 ~= '\r' then
+                    coroutine.yield(l, l1)
+                end
+                l = l1
+            end
+        end
+    until l == '\r'
+end
+
+
+local read_headers = function()
+    local co = coroutine.create(function () read_header() end)
+      return function ()   -- iterator
+        local code, k, v = coroutine.resume(co)
+        return k,v
+      end
+end
+
+local parse_headers =function()
+    local lut = {
+        HTTP_REQUEST = HTTP_REQUEST
+    }
+    local curr_tbl = "HTTP_REQUEST"
+    for k,v in read_headers() do
+        if v == "LUA_TABLE" then
+            if not lut[k] then
+                lut[k] = {}
+            end
+            curr_tbl = k
+        else
+            lut[curr_tbl][k] = v
+        end
+    end
+    HTTP_REQUEST.request = lut.request
+    HTTP_REQUEST.request.COOKIE = lut.COOKIE
+    HTTP_REQUEST.request.REQUEST_HEADER = lut.REQUEST_HEADER
+    HTTP_REQUEST.request.REQUEST_DATA = lut.REQUEST_DATA
+end
+
+-- parsing the header
+parse_headers()
 -- root dir
-__ROOT__ = __api__.root
+__ROOT__ = HTTP_REQUEST.request.SERVER_WWW_ROOT
 -- set require path
 package.path = __ROOT__ .. '/?.lua;'..__api__.apiroot..'/?.lua'
-package.cpath = __api__.apiroot..'/?.so'
-
-require("antd")
 require("std")
 require("utils")
 require("extra_mime")
@@ -24,6 +84,14 @@ if HEADER["User-Agent"] and HEADER["User-Agent"]:match("Mobi") then
     HEADER.mobile = true
 end
 
+function LOG_INFO(fmt,...)
+    ulib.syslog(5,string.format(fmt, table.unpack({...})))
+end
+
+function LOG_ERROR(fmt,...)
+    ulib.syslog(3,string.format(fmt, table.unpack({...})))
+end
+
 function has_module(m)
 	if utils.file_exists(__ROOT__..'/'..m) then
 		if m:find("%.ls$") then
@@ -102,7 +170,6 @@ function loadscript(file, args)
                                 end
                             end
                             pro = pro.."\""..utils.escape(tmp:gsub("%%","%%%%")).."\")\n"
-                            --print(pro)
                         else
                             html = html..std.trim(line," "):gsub("%%","%%%%").."\n"
                         end
@@ -118,12 +185,121 @@ function loadscript(file, args)
             pro = pro.."echo(\""..utils.escape(html).."\")\n"
         end
         pro  = pro.."\nend \n return fn"
-        --print(pro)
         local r,e = load(pro)
         if r then return r(), e else return nil,e end
     end
 end
 
+local decode_post_data = function(ctype, clen, is_url)
+    local raw_data,size = std.antd_recv(HTTP_REQUEST.id, clen)
+    if not raw_data or size ~= clen then
+        LOG_ERROR("Unable to read request data: received %d bytes expected %d bytes", size, clen)
+        return 400, "Unable to read request data"
+    end
+    if is_url then
+        local str = tostring(raw)
+        local arr = explode(str, "&")
+        LOG_INFO("encoded POST URI: %s", str)
+        for i,v in ipairs(arr) do
+            local assoc = explode(v,"=")
+            if #assoc == 2 then
+                REQUEST[assoc[1]] = untils.decodeURI(assoc[2])
+            else
+                REQUEST[assoc[1]] = ""
+            end
+        end
+    else
+        local key = ctype:gsub("^[^/]*", "")
+        REQUEST[key] = raw_data
+    end
+    return 0
+end
+
+local decode_multi_part = function(ctype, clen)
+    --[[
+        local arr = explode(ctype, "=")
+    if #arr ~= 2 then
+        LOG_ERROR("Unable to parsed boundary for: %s", ctype)
+        return 400, "Multipart Boundary not found"
+    end
+    local boundary = std.trim(arr[2]," ")
+    local boundary_end = boundary.."--"
+    LOG_INFO("Boundary found: %s", boundary)
+    local line = nil
+    repeat
+        line = readline()
+    until not line or line:find(boundary) or line == ""
+    if not line or line == "" then
+        LOG_ERROR("Cannot find first match for boundary %s", boundary)
+        return 400, "Unable to decode data based on content boundary"
+    end
+    repeat
+        line = readline()
+    until not line or line:find("Content-Disposition:") or line == ""
+    if not line or line == "" then
+        LOG_ERROR("Content-Disposition meta data not fond")
+        return 400, "Unable to query Content-Disposition from request"
+    end
+    line = line:gsub("Content-Disposition:",""):gsub("\r\n","")
+    -- extract parameters from header
+    arr = explode(line,";")
+    local part_name, part_file = nil, nil
+    for i,v in ipairs(arr) do
+        LOG_INFO('Decoding: %s', v)
+        local assoc = explode(v, "=")
+        local key = std.trim(assoc[1])
+        local val = assoc[1]
+        if val then
+            val = std.trim(val, " ")
+            if key == "name" then
+                LOG_INFO("Part name: %s", val)
+                part_name = val
+            end
+            if key == "filename" then
+                LOG_INFO("Part file: %s", val)
+                part_file = val
+            end
+        end
+    end
+    -- TODO: to be continue
+    ]]
+    return 0
+end
+-- decode post data if any
+local decode_request = function()
+    LOG_INFO("Request method %s", REQUEST.method)
+    if (not REQUEST.method)
+        or (REQUEST.method ~= "POST"
+            and REQUEST.method ~= "PUT"
+            and REQUEST.method ~= "PATCH") then
+            return 0
+    end
+    local ctype = HEADER['Content-Type']
+    local clen = HEADER['Content-Length'] or -1
+    if clen then
+        clen = tonumber(clen)
+    end
+    if not ctype or clen == -1 then
+        LOG_ERROR("Invalid content type %s or content length %d", ctype, clen)
+        return 400, "Bad Request, missing content description"
+    end
+    if ctype == "application/x-www-form-urlencoded" then
+        return decode_post_data(ctype, clen, true)
+    elseif ctype == "multipart/form-data" then
+        return decode_multi_part(ctype, clen)
+    else
+        return decode_post_data(ctype, clen, false)
+    end
+end
+
+local code, error = decode_request()
+
+if code ~= 0 then
+    LOG_ERROR(error)
+    std.error(code, error)
+    return
+end
+
 -- OOP support
 --require("OOP")
 -- load sqlite helper

APIs/std.lua

@@ -61,7 +61,7 @@ function std.b(s)
 	std._b(HTTP_REQUEST.id,s)
 end
 function std.f(v)
-	std._f(HTTP_REQUEST.id,v)
+	ulib.send_file(v, HTTP_REQUEST.socket)
 end
 
 function std.setCookie(v)

APIs/web.lua

@@ -1,74 +0,0 @@
--- require the utils library to work
---require("utils")
--- require("std")
-local wurl = require("wurl")
-
-local web = {}
-
-web.understand = function(proto)
-	if proto == "http" or proto == "https" then 
-		return true 
-	else 
-		return false 
-	end
-end
-
-web.get = function(url)
-	local obj = utils.url_parser(url)
-	if web.understand(obj.protocol) then
-		return wurl._get(obj.hostname,obj.port, obj.query)
-	else
-		return nil,"Protocol is unsupported: "..obj.protocol
-	end
-end
-
-
-web.post = function(url,data)
-	local obj = utils.url_parser(url)
-	if web.understand(obj.protocol) then
-		if type(data) == "string" then
-			return wurl._post(obj.hostname,
-					obj.port,
-					obj.query,
-					"application/x-www-form-urlencoded",data)
-		else
-			return wurl._post(obj.hostname,
-					obj.port,
-					obj.query,
-					data.contentType,data.value)
-		end
-	else
-		return nil,"Protocol is unsupported: "..obj.protocol
-	end
-end
-
-web.download = function(url,to)
-	local obj = utils.url_parser(url)
-	if web.understand(obj.protocol) then
-		local file
-		if std.is_dir(to) then
-			-- need to find file name here
-			local pattern = "^[^%?]*/([%w.]*)%??.*$"
-			local filename = string.gsub(obj.query,pattern,"%1")
-			if filename == "" then filename = "index" end
-			file = to.."/"..filename
-		else
-			file = to
-		end
-		local obj = utils.url_parser(url)
-		return wurl._download(obj.hostname,obj.port,obj.query,file)
-	else
-		return false,"Protocol is unsupported: "..obj.protocol
-	end
-end
-
-web.upload = function(url,name,file)
-	local obj = utils.url_parser(url)
-	if web.understand(obj.protocol) then
-		return wurl._upload(obj.hostname,obj.port,obj.query,name,file)
-	else
-		return nil,"Protocol is unsupported: "..obj.protocol
-	end
-end
-
-return web

lib/asl/Makefile.am

@@ -19,10 +19,6 @@ json_la_LDFLAGS = -module -avoid-version -shared
 json_la_SOURCES =  3rd/jsmn/jsmn.c json.c
 
 
-lib_LTLIBRARIES += wurl.la
-wurl_la_LDFLAGS = -module -avoid-version -shared
-wurl_la_SOURCES =  wurl.c
-
 if HAS_FFI
 lib_LTLIBRARIES += ffi.la
 ffi_la_LDFLAGS = -module -avoid-version -shared -lffi

lib/asl/antd.c

@@ -255,6 +255,32 @@ static int l_t (lua_State *L) {
 	return 1;  /* number of results */
 }
 
+
+static int l_antd_recv (lua_State *L) {
+	void* client = lua_touserdata (L, 1);
+	int len = luaL_checknumber(L,2);
+	if(len == 0)
+	{
+		lua_pushnil(L);
+		return 1;
+	}
+	if(len == 1)
+	{
+		char c = 0;
+		len = antd_recv(client, &c, len);
+		lua_pushnumber(L, c);
+		return 1;
+	}
+	else
+	{
+		lua_new_byte_array(L,len);
+		byte_array_t * arr = l_check_barray(L,-1);
+		len = antd_recv(client, arr->data, len);
+		lua_pushnumber(L,len);
+		return 2;  /* number of results */
+	}
+}
+
 // TODO: add __b to LUA
 //int __b(int, const unsigned char*, int);
 static int l_b (lua_State *L) {
@@ -697,6 +723,7 @@ static const struct luaL_Reg standard [] = {
 	   //{"_text", l_text},
 	   //{"_json", l_json},
 	   //{"_jpeg", l_jpeg},
+	   {"antd_recv", l_antd_recv},
 	   {"_error", l_std_error},
 	   {"_send_header", l_send_header},
 	   {"b64encode", l_base64_encode},

lib/asl/handle.c

@@ -1,49 +1,34 @@
 #include <antd/plugin.h>
-#include <antd/scheduler.h>
-#include <antd/dbhelper.h>
 #include <sys/stat.h>
+#include <sys/types.h>          /* See NOTES */
+#include <sys/socket.h>
+#include <netinet/tcp.h> 
+#include <errno.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include <netinet/in.h>
 #include "../lualib.h"
 
-/**
+typedef struct {
+	plugin_header_t* __plugin__;
+	int fd;
+} lua_thread_data_t;
 
-* convert antd dictionary to lua table
+void* lua_handle(void* ptr)
-* 
-*/
-static void push_dict_to_lua(lua_State* L, dictionary_t d)
 {
-	lua_newtable(L);
+	lua_thread_data_t* data = (lua_thread_data_t**)ptr;
-	
-	chain_t as;
-	if(d)
-		for_each_assoc(as, d)
-		{
-			lua_pushstring(L,as->key);
-			//printf("KEY %s\n", as->key);
-			if(EQU(as->key,"COOKIE") || EQU(as->key,"REQUEST_HEADER") || EQU(as->key,"REQUEST_DATA") )
-				push_dict_to_lua(L, (dictionary_t)as->value);
-			else
-			{
-				if(strncmp(as->key,"octet-stream",12) == 0)
-				{
-					lua_pushlightuserdata(L, as->value);
-				}
-				else
-				{
-					lua_pushstring(L,as->value);
-				}
-				//printf("VALUE : %s\n",as->value );
-			}
-			lua_settable(L, -3);
-		}
-}
-void* lua_handle(void* data, void* meta)
-{
-	antd_request_t* rq = (antd_request_t*) data;
-	char buf[BUFFLEN];
-	plugin_header_t* __plugin__ = meta;
 	lua_State* L = NULL;
-	//char * index = __s("%s/%s",__plugin__.htdocs,"router.lua");
+	antd_client_t cl = {0};
-	char* cnf = __s("%s%s%s", __plugin__->pdir,DIR_SEP, __plugin__->name);
+	cl.sock = data->fd;
+	time(&cl.last_io);
+	cl.ssl = NULL;
+	cl.state = ANTD_CLIENT_PLUGIN_EXEC;
+	cl.z_status = 0;
+	cl.z_level = ANTD_CNONE;
+	cl.zstream = NULL;
+	//char * index = __s("%s/%s",__plugin__->htdocs,"router.lua");
+	char* cnf = __s("%s%s%s", data->__plugin__->pdir,DIR_SEP, data->__plugin__->name);
 	char * apis = __s("%s/%s",cnf,"api.lua");
 	L = luaL_newstate();
 	luaL_openlibs(L);
@@ -54,25 +39,24 @@ void* lua_handle(void* data, void* meta)
 	// API header
 	lua_newtable(L);
 	lua_pushstring(L,"name");
-	lua_pushstring(L, __plugin__->name);
+	lua_pushstring(L, data->__plugin__->name);
 	lua_settable(L,-3);
 	
-	lua_pushstring(L,"root");
+	//lua_pushstring(L,"root");
-	htdocs(rq, buf);
+	//htdocs(rq, buf);
-	lua_pushstring(L, buf);
+	//lua_pushstring(L, data->__plugin__->htdocs);
-	lua_settable(L,-3);
+	//lua_settable(L,-3);
 	
 	lua_pushstring(L,"apiroot");
 	lua_pushstring(L, cnf);
 	lua_settable(L,-3);
 
 	lua_pushstring(L,"tmpdir");
-	tmpdir(buf);
+	lua_pushstring(L, data->__plugin__->tmpdir);
-	lua_pushstring(L, buf);
 	lua_settable(L,-3);
 
 	lua_pushstring(L,"dbpath");
-	lua_pushstring(L, __plugin__->dbpath);
+	lua_pushstring(L, data->__plugin__->dbpath);
 	lua_settable(L,-3);
 	
 	lua_setglobal(L, "__api__");
@@ -80,20 +64,32 @@ void* lua_handle(void* data, void* meta)
 	// Request
 	lua_newtable(L);
 	lua_pushstring(L,"id");
-	lua_pushlightuserdata(L, rq->client);
+	lua_pushlightuserdata(L, &cl);
 	//lua_pushnumber(L,client);
 	lua_settable(L, -3);
 
-	lua_pushstring(L,"request");
+	lua_pushstring(L,"socket");
-	push_dict_to_lua(L,rq->request);
+	lua_pushnumber(L, cl.sock);
+	//lua_pushnumber(L,client);
 	lua_settable(L, -3);
-	lua_setglobal(L, "HTTP_REQUEST");
 
+	int flag = 1;
+
+	if (setsockopt(cl.sock, IPPROTO_TCP, TCP_NODELAY, &(int){1}, sizeof(int)) == -1)
+	{
+		ERROR("Unable to set TCP_NODELAY on %d - setsockopt: %s", cl.sock, strerror(errno));
+	}
+	//lua_pushstring(L,"request");
+	//push_dict_to_lua(L,rq->request);
+	//lua_settable(L, -3);
+	lua_setglobal(L, "HTTP_REQUEST");
+	free(ptr);
 	// load major apis
 	if(is_file(apis))
 		if (luaL_loadfile(L, apis) || lua_pcall(L, 0, 0, 0))
 		{
 			ERROR( "cannot start API file: [%s] %s\n", apis, lua_tostring(L, -1));
+			antd_error(&cl, 503, "Internal server error");
 		}
 	
 	/*if (luaL_loadfile(L, index) || lua_pcall(L, 0, 0, 0))
@@ -102,7 +98,7 @@ void* lua_handle(void* data, void* meta)
 		__t(client, "Cannot run router: %s", lua_tostring(L, -1));
 	}
 	free(index);*/
-	LOG("LUA handle exit on %d", rq->client->sock);
+	LOG("LUA handle exit on %d", cl.sock);
 	// clear request
 	if(L)
 		lua_close(L);
@@ -110,6 +106,7 @@ void* lua_handle(void* data, void* meta)
 		free(cnf);
 	if(apis)
 		free(apis);
-	return antd_create_task(NULL, (void*)rq, NULL,rq->client->last_io);
+	(void) close(cl.sock);
+	return 0;
 	//lua_close(L);
 }

lib/asl/ulib.c

@@ -381,16 +381,19 @@ static int l_file_move(lua_State* L)
 
 static int l_send_file(lua_State* L)
 {
-	const char* old = luaL_checkstring(L,1);
-	const char* new = luaL_checkstring(L,2);
 	int fromfd, tofd, ret;
-	off_t off = 0;
+	size_t sz = 0;
-	if (unlink(new) < 0 && errno != ENOENT) {
+	char* old = NULL;
-		lua_pushboolean(L,0);
+	char* new = NULL;
-		goto end_send_file;
+	if(lua_isnumber(L,1))
+	{
+		fromfd = (int)luaL_checknumber(L,1);
 	}
-	if ((fromfd = open(old, O_RDONLY)) < 0 ||
+	else
-	    (tofd = open(new, O_WRONLY | O_CREAT, 0600)) < 0) {
+	{
+		old = (char*)luaL_checkstring(L,1);
+		if((fromfd = open(old, O_RDONLY)) < 0)
+		{
 			lua_pushboolean(L,0);
 			goto end_send_file;
 		}
@@ -400,24 +403,57 @@ static int l_send_file(lua_State* L)
 			lua_pushboolean(L,0);
 			goto end_send_file;
 		}
-	size_t sz = st.st_size;
+		sz = st.st_size;
-	int read = 0;
+	}
-	while (read != sz && (ret = sendfile(tofd, fromfd, &off, sz - read)) == 0)
+	if(lua_isnumber(L,2))
 	{
+		tofd = (int) luaL_checknumber(L,2);
+	}
+	else
+	{
+		new = (char*)luaL_checkstring(L,2);
+		if (unlink(new) < 0 && errno != ENOENT) {
+			lua_pushboolean(L,0);
+			goto end_send_file;
+		}
+		if((tofd = open(new, O_WRONLY | O_CREAT, 0600)) < 0)
+		{
+			lua_pushboolean(L,0);
+			goto end_send_file;
+		}
+	}
+
+	if(lua_isnumber(L,3))
+	{
+		sz = (size_t) luaL_checknumber(L,3);
+	}
+	
+	off_t off = 0;
+	int read = 0;
+	while (
+		sz > 0 &&
+		read != sz &&
+		(
+			((ret = sendfile(tofd, fromfd, &off, sz - read)) >= 0) ||
+			(errno == EAGAIN)
+		)
+	)
+	{
+		if(ret < 0) ret = 0;
 		read += ret;
 	}
-	if(ret != sz)
+	if(read != sz)
 	{
 		lua_pushboolean(L,0);
 		goto end_send_file;
 	}
 	lua_pushboolean(L,1);
 end_send_file:
-	if(fromfd >= 0)
+	if(fromfd >= 0 && old)
 	{
 		(void) close(fromfd);
 	}
-	if(tofd >= 0)
+	if(tofd >= 0 && new)
 	{
 		(void) close(tofd);
 	}

lib/asl/wurl.c

@@ -1,633 +0,0 @@
-#include<stdio.h> //printf
-#include<string.h> //memset
-#include<stdlib.h> //for exit(0);
-#include<errno.h> //For errno - the error number
-#include<netdb.h> //hostent
-#include <netinet/in.h>
-#include <arpa/inet.h>
-//#include <signal.h>
-#include <dirent.h>
-#include <errno.h>
-#include <sys/socket.h>
-#include <resolv.h>
-#include <errno.h>
-#include <ifaddrs.h>
-#include <sys/stat.h>
-#include <libgen.h>
-
-#include "../lualib.h"
-//#include "../../lua-api.h"
-#include <antd/utils.h>
-#include <sys/time.h>
-	
-#define CLIENT_NAME "wurl"
-#define CLIENT_HOST "192.168.9.249"
-#define CONN_TIME_OUT_S 3
-#define MAX_BUFF 1024
-#define REQUEST_BOUNDARY "------wURLFormBoundaryVo4QYVaSVseFNpeK"
-#define GET 0
-#define POST 1
-typedef struct{
-	int type; 		// POST(1) or GET(0)
-	char* resource;	// path
-	char* ctype;	// content type, used by POST
-	int clen;		// content length, used by POST
-	unsigned char* data ;
-} wurl_header_t;
-
-byte_array_t *l_check_barray (lua_State *L,int idx) {
-	void *ud = luaL_checkudata(L, idx, BYTEARRAY);
-	luaL_argcheck(L, ud != NULL, idx, "`byte array' expected");
-	return (byte_array_t *)ud;
-}
-
-void lua_new_byte_array(lua_State*L, int n)
-{
-	 size_t nbytes = sizeof(byte_array_t) + (n-1)*sizeof(unsigned char);
-	 byte_array_t *a = (byte_array_t *)lua_newuserdata(L, nbytes);
- 	luaL_getmetatable(L, BYTEARRAY);
- 	lua_setmetatable(L, -2);
-	 a->size = n;
-}
-
-/*get the ip by hostname*/
-int wurl_ip_from_hostname(const char * hostname , char* ip)
-{
-    struct hostent *he;
-    struct in_addr **addr_list;
-    int i;    
-    if ( (he = gethostbyname( hostname ) ) == NULL) 
-    {
-        // get the host info
-        herror("gethostbyname");
-        return -1;
-    }
-    addr_list = (struct in_addr **) he->h_addr_list;
-     
-    for(i = 0; addr_list[i] != NULL; i++) 
-    {
-        //Return the first one;
-        strcpy(ip , inet_ntoa(*addr_list[i]) );
-        return 0;
-    }
-    return -1;
-}
-
-/*
-send a request
-*/
-int wurl_request_socket(const char* ip, int port)
-{
-	int sockfd;
-	struct sockaddr_in dest;
-	
-	// time out setting
-	struct timeval timeout;      
-	timeout.tv_sec = CONN_TIME_OUT_S;
-	timeout.tv_usec = 0;
-	if ( (sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0 )
-	{
-		perror("Socket");
-		return -1;
-	}
-	if (setsockopt (sockfd, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout,sizeof(timeout)) < 0)
-	        perror("setsockopt failed\n");
-
-    if (setsockopt (sockfd, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout,sizeof(timeout)) < 0)
-        perror("setsockopt failed\n");
-	
-    bzero(&dest, sizeof(dest));
-    dest.sin_family = AF_INET;
-    dest.sin_port = htons(port);
-    if ( inet_aton(ip, &dest.sin_addr) == 0 )
-    {
-		perror(ip);
-		close(sockfd);
-		return -1;
-    }
-	if ( connect(sockfd, (struct sockaddr*)&dest, sizeof(dest)) != 0 )
-	{
-		close(sockfd);
-		perror("Connect");
-		return -1;
-	}
-	return sockfd;
-}
-/*
-POST %s HTTP/1.0\r\n
-Host: %s\r\n
-User-Agent: %s\r\n
-Content-Type: %s\r\n
-Content-Length: %d\r\n\r\n"
-
-maybe cookie support? this can cause security problem
-
-GET %s HTTP/1.0\r\n
-Host: %s\r\n
-User-Agent: %s\r\n\r\n"
-
-multipart
-POST %s HTTP/1.1
-Host: %s
-User-Agent: %s
-Content-Type: multipart/form-data; boundary=----------287032381131322
-Content-Length: %d
-
-------------287032381131322
-Content-Disposition: form-data; name="datafile1"; filename="r.gif"
-Content-Type: image/gif
-
-GIF87a.............,...........D..;
-------------287032381131322
-Content-Disposition: form-data; name="datafile2"; filename="g.gif"
-Content-Type: image/gif
-
-GIF87a.............,...........D..;
-------------287032381131322
-Content-Disposition: form-data; name="datafile3"; filename="b.gif"
-Content-Type: image/gif
-
-GIF87a.............,...........D..;
-------------287032381131322--
-*/
-
-int wurl_header(int sockfd, wurl_header_t rq)
-{	
-	char buff[MAX_BUFF];
-	if(sockfd < 0) return -1;
-	
-	if(rq.type == GET)  // GET
-	{
-		send(sockfd,"GET ",4,0);
-		send(sockfd,rq.resource, strlen(rq.resource),0);
-		send(sockfd," HTTP/1.0\r\n",11,0);
-	}
-	else
-	{
-		send(sockfd,"POST ",5, 0);
-		send(sockfd,rq.resource, strlen(rq.resource),0);
-		send(sockfd," HTTP/1.0\r\n",11,0);
-		sprintf(buff,"Content-Type: %s\r\n", rq.ctype);
-		send(sockfd,buff,strlen(buff),0);
-		sprintf(buff,"Content-Length: %d\r\n", rq.clen);
-		send(sockfd,buff,strlen(buff),0);
-	}
-	// host dont need to send the host
-	//sprintf(buff,"Host: %s\r\n",CLIENT_HOST);
-	//send(sockfd,buff,strlen(buff),0);
-	// user agent
-	sprintf(buff,"User-Agent: %s\r\n",CLIENT_NAME);
-	send(sockfd,buff,strlen(buff),0);
-	// terminate  request
-	send(sockfd,"\r\n",2,0);
-
-	// if there is data, send out
-	if(rq.type == POST && rq.data)
-	{
-		send(sockfd,rq.data,rq.clen,0);
-	}
-	return 0;
-}
-
-/*
-	send multiple files to server
-	using multipart/form-data
-*/
-
-void wurl_send_files(int sockfd,char* resource, int n, char* name [], char* files[])
-{
-	char buff[MAX_BUFF];
-	wurl_header_t rq;
-	rq.type = POST;
-	rq.resource = resource;
-	// get the total size of data
-	int totalsize = 0;
-	FILE* fd;
-	struct stat st;
-	for(int i = 0; i < n; ++i)
-	{
-		if(stat(files[i], &st) != 0) continue;
-		totalsize += st.st_size;
-	}
-	rq.clen = totalsize;
-	sprintf(buff,"%s; boundary=%s","multipart/form-data",REQUEST_BOUNDARY);
-	rq.ctype = buff;
-	
-	// now send the header
-	wurl_header(sockfd,rq);
-	// now send the files
-	size_t size;
-	for(int i = 0; i < n; ++i)
-	{
-		fd = fopen(files[i],"rb");
-		if(!fd) continue;
-		// first send the boundary
-		//printf("sending file %s name:%s\n", files[i],name[i]);
-		sprintf(buff,"%s\r\n",REQUEST_BOUNDARY);
-		send(sockfd, buff, strlen(buff),0);
-		// content disposition
-		sprintf(buff,"Content-Disposition: form-data; name=\"%s\"; filename=\"%s\"\r\n",
-					name[i],basename(files[i]));
-		send(sockfd,buff, strlen(buff),0);
-		// content type
-		sprintf(buff,"Content-Type: %s\r\n\r\n",mime(files[i]));
-		send(sockfd,buff, strlen(buff),0);
-		// now send the file
-		while(!feof(fd))
-		{
-			size = fread(buff,1,MAX_BUFF,fd);
-			send(sockfd,buff,size,0);
-			//if(!__b(client,buffer,size)) return;
-		}
-		fclose(fd);
-		send(sockfd,"\r\n",2,0);
-	}
-	//end the boudary
-	sprintf(buff,"%s--\r\n",REQUEST_BOUNDARY);
-	send(sockfd,buff,strlen(buff),0);
-}
-
-/**
- * Read the socket request in to a buffer or size
- * The data is read until the buffer is full or
- * there are a carrier return character
- * @param  sock socket
- * @param  buf  buffer
- * @param  size size of buffer
- * @return      number of bytes read
- */
-int wurl_read_buf(int sock, char*buf,int size)
-{
-	int i = 0;
-	char c = '\0';
-	int n;
-	while ((i < size - 1) && (c != '\n'))
-	{
-		n = recv(sock, &c, 1, 0);
-		if (n > 0)
-		{
-			buf[i] = c;
-			i++;
-		}
-		else
-			c = '\n';
-	}
-	buf[i] = '\0';
-	return i;
-}
-/*
-	POST example
-	wurl_header_t rq;
-	rq.resource = path;
-	rq.type = POST;
-	rq.data = "s=a&q=b#test";//"{\"name\":\"sang\"}";
-	rq.clen =  strlen(rq.data);
-	rq.ctype = "application/x-www-form-urlencoded";//"application/json";
-	
-	if(wurl_request(hostname,port,&rq,1) == 0)
-	{
-		printf(rq.data);
-	}
-	else
-	{
-		printf("Cannot connect to host\n");
-	}
-	
-	DOWNLOAD
-	wurl_header_t rq;
-	rq.resource = path;
-	rq.type = GET;
-	
-	if(wurl_download(hostname,port,&rq,file) == 0)
-	{
-		printf("Download sucess ful\n");
-	}
-	else
-	{
-		printf("Cannot connect to host\n");
-	}
-
-	
-	upload example
-		// send files
-		char * names[2];
-		names[0] = "zip";
-		names[1] = "text";
-		char* files[2];
-		files[0] = "/Users/mrsang/tmp/Archive.zip";
-		files[1] = "/Users/mrsang/tmp/test.py";
-		
-		wurl_send_files(sock,path,2,names, files);
-		printf("RETURN:\n");
-		size = wurl_read_buf(sock,buff, MAX_BUFF);
-		while(size > 0)
-		{
-			printf("%s", buff);
-			size = wurl_read_buf(sock,buff, MAX_BUFF);
-		}
-		close(sock);
-*/
-void wurl_response_header(int sock, wurl_header_t* header)
-{
-	char buff[MAX_BUFF];
-	int size  = wurl_read_buf(sock,buff,MAX_BUFF);
-	char* token;
-	while (size > 0 && strcmp("\r\n",buff))
-	{
-		char* line = strdup(buff);
-		//printf("LINE %s\n", line);
-		token = strsep(&line,":");
-		trim(token,' ');
-		if(token != NULL &&strcasecmp(token,"Content-Type") == 0)
-		{
-			header->ctype = strsep(&line,":");
-			trim(header->ctype,' ');
-			trim(header->ctype,'\n');
-			trim(header->ctype,'\r');
-		} else if(token != NULL &&strcasecmp(token,"Content-Length") == 0)
-		{
-			token = strsep(&line,":");
-			trim(token,' ');
-			header->clen = atoi(token);
-		}
-		//if(line) free(line);
-		size  = wurl_read_buf(sock,buff,MAX_BUFF);
-	}
-}
-int wurl_read_data(int sock,char** din)
-{
-	// read line by line, ignore content length
-	int total_length = 0;
-	char* tmp = NULL;
-	int CHUNK = 512;
-	char buff[MAX_BUFF];
-	char * data = ( char*) malloc(CHUNK);
-	int cursize = CHUNK;
-	int size = wurl_read_buf(sock,buff,MAX_BUFF);
-	while(size > 0)
-	{
-		if(total_length+size > cursize)
-		{
-			tmp = (char*) realloc(data,total_length + size+ CHUNK );
-			
-			if(!tmp) 
-			{
-				if(data) free(data);
-				break;
-			}
-			cursize = total_length + size+ CHUNK;
-			data = tmp;
-		}
-		memcpy(data+total_length,buff,size);
-		total_length += size;
-		size = wurl_read_buf(sock,buff,MAX_BUFF);
-	}
-	data[total_length] = '\0';
-	close(sock);
-	*din = data;
-	return total_length;
-}
-/*
-	hostname
-	port
-	header for request and respond
-	lazy : 	if 1, all data is read to the header
-			if 0, user has the responsibility to handler it
-*/
-int wurl_request(const char* hostname, int port, wurl_header_t* header, int lazy)
-{
-	char ip[100];
-	wurl_ip_from_hostname(hostname ,ip);
-	int sock = wurl_request_socket(ip, port);
-	
-	if(sock <= 0) return -1;
-	// send header
-	wurl_header(sock,*header);
-	// read respond header
-	wurl_response_header(sock,header);
-	
-	if(header->ctype == NULL || header->clen == -1)
-	{
-		LOG("Bad data\n");
-		return -1;
-	}
-	
-	// read data if lazy
-	if(lazy)
-	{
-		// read line by line, ignore content length
-		header->clen = wurl_read_data(sock,(char**)&header->data);
-		return 0;
-	} 	
-	return sock;
-}
-
-int wurl_download(const char* hostname, int port, wurl_header_t* h, const char* to)
-{
-	// we will handler the data reading
-	int sock = wurl_request(hostname, port,h,0);
-	char buff[MAX_BUFF];
-	if(sock < 0) return -1;
-	
-	FILE* fp =  fopen(to,"wb");
-	int size;
-	if(fp)
-	{
-		while((size = wurl_read_buf(sock,buff, MAX_BUFF)) > 0)
-		{
-			fwrite(buff, size, 1, fp);
-		}
-		fclose(fp);
-	}
-	else
-	{
-		close(sock);
-		return -1;
-	}
-	close(sock);
-	return 0;
-}
-
-/*
-int main (int argc, char const *argv[])
-{
-	if(argc < 4)
-	{
-	        printf("wurl [host] [port] [path]\n");
-	        exit(1);
-	}
-     
-	char *hostname = argv[1];
-	char* path = argv[3];	
-	int port = atoi(argv[2]);
-	char*file = argv[4];
-	wurl_header_t rq;
-	rq.resource = path;
-	rq.type = POST;
-	rq.data = "s=a&q=b#test";//"{\"name\":\"sang\"}";
-	rq.clen =  strlen(rq.data);
-	rq.ctype = "application/x-www-form-urlencoded";//"application/json";
-	
-	if(wurl_download(hostname,port,&rq,file) == 0)
-	{
-		printf("Download sucess ful\n");
-	}
-	else
-	{
-		printf("Cannot connect to host\n");
-	}
-	return 0;
-}*/
-
-static int l_get(lua_State *L)
-{
-	const char* host = luaL_checkstring(L,1);
-	int port = luaL_checknumber(L,2);
-	const char* resource = luaL_checkstring(L,3);
-	
-	wurl_header_t rq;
-	rq.resource = (char*)resource;
-	rq.type = GET;
-	
-	if(wurl_request(host,port,&rq,1) == 0)
-	{
-		//printf("Content type is %s\n", rq.ctype);
-		//mime_t m = mime_from_type(rq.ctype);
-		lua_newtable(L);
-		lua_pushstring(L,"contentType");
-		lua_pushstring(L,rq.ctype);
-		lua_settable(L,-3);
-		
-		/*
-		lua_pushstring(L,"binary");
-		lua_pushboolean(L,m.bin);
-		lua_settable(L,-3);*/
-		
-		lua_pushstring(L,"data");
-		// byte array, that can be convert to string later
-		lua_new_byte_array(L,rq.clen);
-		byte_array_t* arr = l_check_barray(L,-1);
-		memcpy(arr->data,rq.data,rq.clen);
-		free(rq.data); // be careful
-		lua_settable(L,-3);
-		return 1;
-	}
-	else
-	{
-		lua_pushnil(L);
-		return 1;
-	}
-}
-static int l_post(lua_State *L)
-{
-	const char* host = luaL_checkstring(L,1); // host
-	int port = luaL_checknumber(L,2); // port
-	const char* res = luaL_checkstring(L,3); // resource
-	const char* ctype = luaL_checkstring(L,4); // content type
-	const char* data = luaL_checkstring(L,5); // post data
-	wurl_header_t rq;
-	rq.resource = (char*)res;
-	rq.type = POST;
-	rq.ctype = (char*)ctype;
-	rq.clen = strlen(data);
-	rq.data = (unsigned char*)data;
-	
-	if(wurl_request(host,port,&rq,1) == 0)
-	{
-		
-		//printf("Content type is %s\n", rq.ctype);
-		mime_t m = mime_from_type(rq.ctype);
-		lua_newtable(L);
-		lua_pushstring(L,"contentType");
-		lua_pushstring(L,rq.ctype);
-		lua_settable(L,-3);
-		
-		/*lua_pushstring(L,"binary");
-		lua_pushboolean(L,m.bin);
-		lua_settable(L,-3);
-		*/
-
-		lua_pushstring(L,"data");
-		lua_new_byte_array(L,rq.clen);
-		byte_array_t* arr = l_check_barray(L,-1);
-		memcpy(arr->data,rq.data,rq.clen);
-		free(rq.data); // be careful
-		lua_settable(L,-3);
-		return 1;
-	}
-	else
-	{
-		lua_pushnil(L);
-		return 1;
-	}
-	
-}
-static int l_download(lua_State* L)
-{
-	// we user only GET for down load and POST for upload
-	const char* host = luaL_checkstring(L,1); // host
-	int port = luaL_checknumber(L,2); // port
-	const char* res = luaL_checkstring(L,3); // resource
-	const char* file = luaL_checkstring(L,4); // file 
-	wurl_header_t rq;
-	rq.resource = (char*)res;
-	rq.type = GET;
-	if(wurl_download(host,port,&rq,file) == 0)
-		lua_pushboolean(L, true);
-	else
-		lua_pushboolean(L,false);
-	return 1;
-}
-static int l_upload(lua_State* L)
-{
-	const char* host = luaL_checkstring(L,1);
-	int port = luaL_checknumber(L,2);
-	const char* resource = luaL_checkstring(L,3);
-	const char* name = luaL_checkstring(L,4);
-	const char* file = luaL_checkstring(L,5);
-	
-	if(!_exist(file)) goto fail;
-	
-	// request socket
-	char ip[100];
-	wurl_ip_from_hostname(host ,ip);
-	int sock = wurl_request_socket(ip, port);
-	
-	if(sock <= 0) goto fail;
-	
-	char * names[2];
-	names[0] = (char*)name;
-	char* files[2];
-	//files[0] = "/Users/mrsang/tmp/Archive.zip";
-	files[0] = (char*)file;
-	
-	//printf("SENDIND DILE\n");
-	wurl_send_files(sock, (char*)resource,1,names,files);
-	wurl_header_t header;
-	//printf("READ HEADER\n");
-	wurl_response_header(sock, &header);
-	//printf("read data\n");
-	wurl_read_data(sock,(char**)&header.data);
-	if(header.ctype != NULL && header.data)
-	{
-		lua_pushstring(L,(const char*)header.data);
-		free(header.data);
-		return 1;
-	}
-	fail:
-		lua_pushnil(L);
-		return 1;
-}
-static const struct luaL_Reg _lib [] = {
-	{"_get",l_get},
-	{"_post",l_post},
-	{"_download",l_download},
-	{"_upload",l_upload},
-	{NULL,NULL}
-};
-
-int luaopen_wurl(lua_State *L)
-{
-	luaL_newlib(L, _lib);
-	return 1;
-}

lua-api.c

@@ -2,21 +2,102 @@
 #include <dlfcn.h>
 #include <antd/plugin.h>
 #include <antd/scheduler.h>
-#include <antd/dbhelper.h>
+
+#include <stdlib.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include <pthread.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/ioctl.h>
+#include <sys/select.h>
+#include <time.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sys/time.h>
+#include <netinet/in.h>
+
 #include <sys/stat.h>
-#include "lib/lualib.h"
 
 #define LUA_HDL_FN "lua_handle"
-static void* core = NULL;
+#define MAX_SOCK_NAME 64
-static void* lua_handle = NULL;
+#define SOCKET_NAME "lua.sock"
-static void *(*handle_fn)(void *, void*);
 
-void init()
+#define MAX_SESSION_TIMEOUT (15u * 60u) //15 min
+#define PING_INTERVAL 10u               // 10s
+#define PROCESS_TIMEOUT 200u          //100ms
+
+typedef struct {
+	plugin_header_t* __plugin__;
+	int fd;
+} lua_thread_data_t;
+
+static pid_t pid = 0;
+
+static int open_unix_socket()
 {
+    struct sockaddr_un address;
+    address.sun_family = AF_UNIX;
+	char path[sizeof(address.sun_path)];
+	(void)snprintf(path, sizeof(address.sun_path), "%s/%s", __plugin__.tmpdir, SOCKET_NAME);
+    (void) strncpy(address.sun_path, path, sizeof(address.sun_path));
+    int fd = socket(AF_UNIX, SOCK_STREAM, 0);
+    if(fd == -1)
+    {
+        ERROR( "Unable to create Unix domain socket: %s", strerror(errno));
+        return -1;
+    }
+    if(connect(fd, (struct sockaddr*)(&address), sizeof(address)) == -1)
+    {
+        ERROR( "Unable to connect to socket '%s': %s", address.sun_path, strerror(errno));
+        return -1;
+    }
+    LOG( "Socket %s is created successfully", path);
+    return fd;
+}
+
+static int mk_socket()
+{
+    struct sockaddr_un address;
+	char path[sizeof(address.sun_path)];
+	(void)snprintf(path, sizeof(address.sun_path), "%s/%s", __plugin__.tmpdir, SOCKET_NAME);
+    address.sun_family = AF_UNIX;
+    // create the socket
+    (void)snprintf(path, sizeof(address.sun_path), "%s/%s", __plugin__.tmpdir, SOCKET_NAME);
+
+    (void)strncpy(address.sun_path, path, sizeof(address.sun_path));
+    int fd = socket(AF_UNIX, SOCK_STREAM, 0);
+    if (fd == -1)
+    {
+        ERROR("Unable to create Unix domain socket: %s", strerror(errno));
+        return -1;
+    }
+    if (bind(fd, (struct sockaddr *)(&address), sizeof(address)) == -1)
+    {
+        ERROR("Unable to bind name: %s to a socket: %s", address.sun_path, strerror(errno));
+        return -1;
+    }
+    // mark the socket as passive mode
+    if (listen(fd, 500) == -1)
+    {
+        ERROR("Unable to listen to socket: %d (%s): %s", fd, path, strerror(errno));
+        return -1;
+    }
+    LOG("Socket %s is created successfully: %d", path, fd);
+    return fd;
+}
+
+static void lua_serve()
+{
+	void* core = NULL;
+	void* lua_handle = NULL;
+	void *(*handle_fn)(void*);
+	char path[BUFFLEN];
 	char* error;
-	char* path = __s("%s/lua/core.so", __plugin__.pdir);
+	(void)snprintf(path, BUFFLEN, "%s/lua/core.so", __plugin__.pdir);
 	core = dlopen(path, RTLD_NOW| RTLD_GLOBAL);
-	free(path);
 	if(!core)
 	{
 		ERROR("Cannot load Lua core: %s", dlerror());
@@ -24,9 +105,8 @@ void init()
 	}
 	LOG("Lua core loaded");
 	// now load the handle
-	path = __s("%s/lua/handle.so", __plugin__.pdir);
+	(void)snprintf(path, BUFFLEN, "%s/lua/handle.so", __plugin__.pdir);
 	lua_handle = dlopen(path, RTLD_LAZY);
-	free(path);
 	if(!lua_handle)
 	{
 		ERROR("Cannot load lua_handle: %s", dlerror());
@@ -40,26 +120,193 @@ void init()
 		handle_fn = NULL;
 		return;
 	}
-	LOG("Lua module initialized");
+	int socket = mk_socket();
+	if(socket != -1)
+	{
+		int fd;
+		if (setsockopt(socket, SOL_SOCKET, SO_REUSEADDR, &(int){1}, sizeof(int)) == -1)
+		{
+			ERROR("Unable to set reuse address on %d - setsockopt: %s", socket, strerror(errno));
+		}
+		while((fd = accept(socket, NULL, NULL)) > 0)
+		{
+			pthread_t thread;
+			lua_thread_data_t* data = (lua_thread_data_t*)malloc(sizeof(lua_thread_data_t));
+			data->__plugin__ = &__plugin__;
+			data->fd = fd;
+			set_nonblock(fd);
+			if (pthread_create(&thread, NULL, (void *(*)(void*))handle_fn, (void *)data) != 0)
+			{
+				ERROR("pthread_create: cannot create lua thread: %s", strerror(errno));
+				(void)close(fd);
+			}
+			else
+			{
+				LOG("Serve thread created for %d", fd);
+				pthread_detach(thread);
 			}
 
-void* handle(void* data)
-{
-	plugin_header_t* meta_ptr = (void*)meta();
-	antd_request_t *rq = (antd_request_t *)data;
-	// find the handle function and execute it
-	if(!handle_fn)
-	{
-		antd_error(rq->client, 503, "Requested service not found");
-		return antd_create_task(NULL, (void *)rq, NULL, rq->client->last_io);
 		}
-	return handle_fn(data, meta_ptr);
+		if (fd < 0)
-}
-void destroy()
 		{
+			ERROR("Unable to accept the new connection: %s", strerror(errno));
+		}
+	}
 	if(core)
 		(void)dlclose(core);
 	if(lua_handle)
 		(void)dlclose(lua_handle);
+	LOG("lua_serve: stop serve due to error");
+}
+
+void init()
+{
+	use_raw_body();
+	pid = fork();
+	if (pid == 0)
+    {
+		// child
+		lua_serve();
+	}
+	// parent
+	LOG("Lua module initialized");
+}
+
+static void push_dict_to_socket(antd_client_t* cl, char* name, char* parent_name, dictionary_t d)
+{
+	antd_send(cl,name, strlen(name));
+	antd_send(cl,"\n", 1);
+	chain_t as;
+	if(d)
+		for_each_assoc(as, d)
+		{
+			if(EQU(as->key,"COOKIE") || EQU(as->key,"REQUEST_HEADER") || EQU(as->key,"REQUEST_DATA") )
+				push_dict_to_socket(cl, as->key, name, (dictionary_t)as->value);
+			else if(as->value)
+			{
+				antd_send(cl,as->key, strlen(as->key));
+				antd_send(cl,"\n", 1);
+				antd_send(cl,as->value, strlen(as->value));
+				antd_send(cl,"\n", 1);
+			}
+		}
+	antd_send(cl,parent_name, strlen(parent_name));
+	antd_send(cl,"\n", 1);
+}
+
+static void *process(void *data)
+{
+	fd_set fd_in;
+	antd_request_t *rq = (antd_request_t *)data;
+	antd_client_t* cl = (antd_client_t* ) dvalue(rq->request, "LUA_CL_DATA");
+	struct timeval timeout;
+	timeout.tv_sec = 0;
+	timeout.tv_usec = PROCESS_TIMEOUT;
+	FD_ZERO(&fd_in);
+	FD_SET(rq->client->sock, &fd_in);
+	FD_SET(cl->sock, &fd_in);
+	int max_fdm = rq->client->sock > cl->sock ? rq->client->sock : cl->sock;
+	int rc = select(max_fdm + 1, &fd_in, NULL, NULL, &timeout);
+	antd_task_t* task;
+	uint8_t buff[BUFFLEN];
+	int ret;
+	switch (rc)
+	{
+		case -1:
+			ERROR("Error on select(): %s", strerror(errno));
+			close(cl->sock);
+			return antd_create_task(NULL, data, NULL, rq->client->last_io);
+		case 0:
+			// time out
+			task = antd_create_task(process, (void *)rq, NULL, time(NULL));
+			//antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
+			//antd_task_bind_event(task, cl->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
+			return task;
+		// we have data
+		default:
+			// If data is on webserver
+			if (FD_ISSET(rq->client->sock, &fd_in))
+			{
+				while((ret = antd_recv_upto(rq->client,buff, BUFFLEN)) > 0)
+				{
+					LOG("Receive %d bytes from antd ", ret);
+					// write data to the other side
+					if(antd_send(cl,buff, ret) != ret)
+					{
+						ERROR("Error atnd_send(): %s", strerror(errno));
+						close(cl->sock);
+						return antd_create_task(NULL, data, NULL, rq->client->last_io);
+					}
+				}
+				if(ret <= 0)
+				{
+					ERROR("Error antd_recv_upto() on %d: %s",rq->client->sock,  strerror(errno));
+					close(cl->sock);
+					return antd_create_task(NULL, data, NULL, rq->client->last_io);
+				}
+			}
+			else if(FD_ISSET(cl->sock, &fd_in))
+			{
+				while((ret = antd_recv_upto(cl,buff, BUFFLEN)) > 0)
+				{
+					LOG("Receive %d bytes from LUA %d", ret, cl->sock);
+					// write data to the other side
+					if(antd_send(rq->client,buff, ret) != ret)
+					{
+						ERROR("Error atnd_send(): %s", strerror(errno));
+						close(cl->sock);
+						return antd_create_task(NULL, data, NULL, rq->client->last_io);
+					}
+				}
+				if(ret < 0)
+				{
+					ERROR("Error antd_recv_upto() on %d: %s", cl->sock, strerror(errno));
+					close(cl->sock);
+					return antd_create_task(NULL, data, NULL, rq->client->last_io);
+				}
+			}
+			task = antd_create_task(process, (void *)rq, NULL, time(NULL));
+			antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
+			antd_task_bind_event(task, cl->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
+			return task;
+	}
+}
+
+void* handle(void* data)
+{
+	antd_request_t *rq = (antd_request_t *)data;
+	// connect to socket
+	int fd = open_unix_socket();
+	if(fd < 0)
+	{
+		antd_error(rq->client, 503, "Service unavailable");
+        return antd_create_task(NULL, data, NULL, rq->client->last_io);
+	}
+	LOG("Connected to lua server at %d", fd);
+	set_nonblock(fd);
+	// write all header to lua
+	antd_client_t* cl = (antd_client_t*) malloc(sizeof(antd_client_t));
+	(void)memset(cl, 0, sizeof(antd_client_t));
+	cl->sock = fd;
+	time(&cl->last_io);
+	cl->ssl = NULL;
+	cl->state = ANTD_CLIENT_PLUGIN_EXEC;
+	cl->z_status = 0;
+	cl->z_level = ANTD_CNONE;
+	cl->zstream = NULL;
+	push_dict_to_socket(cl, "request","HTTP_REQUEST", rq->request);
+	antd_send(cl,"\r\n", 2);
+	dput(rq->request, "LUA_CL_DATA", cl);
+	antd_task_t* task = antd_create_task(process, (void *)rq, NULL, time(NULL));
+	antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
+	antd_task_bind_event(task, fd, 0, TASK_EVT_ON_READABLE);
+	return task;
+}
+void destroy()
+{
+	if(pid > 0)
+	{
+		kill(pid, SIGKILL);
+	}
 	LOG("Exit LUA Handle");
 }