Lua api: Support

Signed-off-by: Jianhui Zhao <jianhuizhao329@gmail.com>
main
Jianhui Zhao 2018-07-18 01:31:17 +08:00
parent f8148f2c85
commit 365e84fec3
5 changed files with 388 additions and 0 deletions

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@ -0,0 +1,59 @@
#!/usr/bin/env lua
--[[
Copyright (C) 2017 Jianhui Zhao <jianhuizhao329@gmail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
USA
--]]
local uloop = require "uloop"
local uh = require "uhttpd"
local port = 8914
uloop.init()
print("uhttpd version:", uh.VERSION)
local srv = uh.new(port)
print("Listen on:", port)
srv:add_action("/lua", function(cl, opt)
uh.send_header(cl, 200, "OK", -1)
uh.append_header(cl, "Myheader", "Hello")
uh.header_end(cl)
uh.chunk_send(cl, string.format("<h1>Hello Libuhttpd %s</h1>", uh.VERSION))
uh.chunk_send(cl, string.format("<h1>REMOTE_ADDR: %s</h1>", opt.peer_addr))
uh.chunk_send(cl, string.format("<h1>METHOD: %s</h1>", opt.method))
uh.chunk_send(cl, string.format("<h1>HTTP Version: %s</h1>", opt.version))
uh.chunk_send(cl, string.format("<h1>URL: %s</h1>", opt.url))
uh.chunk_send(cl, string.format("<h1>QUERY: %s</h1>", opt.query))
uh.chunk_send(cl, string.format("<h1>Body: %s</h1>", opt.body and opt.body or ""))
for k, v in pairs(opt.vars) do
uh.chunk_send(cl, string.format("<h1>%s: %s</h1>", k, v))
end
for k, v in pairs(opt.headers) do
uh.chunk_send(cl, string.format("<h1>%s: %s</h1>", k, v))
end
uh.request_done(cl)
end)
uloop.run()

2
src/CMakeLists.txt 100644 → 100755
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@ -42,6 +42,8 @@ if (UHTTPD_LUA_SUPPORT)
list(APPEND EXTRA_LIBS ${LUA_LIBRARY})
list(APPEND SOURCE_FILES lua_template.c)
add_subdirectory(lua)
else ()
set(UHTTPD_LUA_SUPPORT_CONFIG 0)
endif ()

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include_directories(${CMAKE_SOURCE_DIR}/src)
add_library(uhttpd-lua MODULE uhttpd-lua.c)
set_target_properties(uhttpd-lua PROPERTIES OUTPUT_NAME uhttpd PREFIX "")
target_link_libraries(uhttpd-lua uhttpd util)
install(TARGETS uhttpd-lua
LIBRARY DESTINATION lib/lua/${LUA_VERSION_MAJOR}.${LUA_VERSION_MINOR}
)

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/*
* Copyright (C) 2017 Jianhui Zhao <jianhuizhao329@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#include <string.h>
#include "uhttpd.h"
#include "uhttpd-lua.h"
static void *uh_create_userdata(lua_State *L, size_t size, const luaL_Reg *reg, lua_CFunction gc)
{
void *ret = lua_newuserdata(L, size);
memset(ret, 0, size);
lua_createtable(L, 0, 2);
lua_pushvalue(L, -1);
lua_setfield(L, -2, "__index");
lua_pushcfunction(L, gc);
lua_setfield(L, -2, "__gc");
lua_pushvalue(L, -1);
lua_setmetatable(L, -3);
lua_pushvalue(L, -2);
luaI_openlib(L, NULL, reg, 1);
lua_pushvalue(L, -2);
return ret;
}
static inline void add_all_var(struct uh_client *cl, lua_State *L)
{
const char *name, *value;
lua_newtable(L);
kvlist_for_each(&cl->request.var, name, value) {
lua_pushstring(L, value);
lua_setfield(L, -2, name);
}
lua_setfield(L, -2, "vars");
}
static inline void add_all_header(struct uh_client *cl, lua_State *L)
{
const char *name, *value;
lua_newtable(L);
kvlist_for_each(&cl->request.header, name, value) {
lua_pushstring(L, value);
lua_setfield(L, -2, name);
}
lua_setfield(L, -2, "headers");
}
static inline void add_body(struct uh_client *cl, lua_State *L)
{
int len;
const char *body;
body = cl->get_body(cl, &len);
lua_pushlstring(L, body, len);
lua_setfield(L, -2, "body");
}
static void lua_uh_action(struct uh_client *cl)
{
struct uh_server *srv = cl->srv;
lua_State *L = srv->L;
lua_getglobal(L, "__uh_action_cb");
lua_getfield(L, -1, cl->get_path(cl));
lua_pushlightuserdata(L, cl);
lua_newtable(L);
lua_pushstring(L, cl->get_peer_addr(cl));
lua_setfield(L, -2, "peer_addr");
lua_pushstring(L, cl->get_method(cl));
lua_setfield(L, -2, "method");
lua_pushstring(L, cl->get_version(cl));
lua_setfield(L, -2, "version");
lua_pushstring(L, cl->get_url(cl));
lua_setfield(L, -2, "url");
lua_pushstring(L, cl->get_query(cl));
lua_setfield(L, -2, "query");
add_body(cl, L);
add_all_var(cl, L);
add_all_header(cl, L);
lua_call(L, 2, 0);
}
static int lua_uh_add_action(lua_State *L)
{
struct lua_uh_server *lsrv = lua_touserdata(L, 1);
struct uh_server *srv = lsrv->srv;
const char *path = lua_tostring(L, -2);
if (!srv) {
lua_pushstring(L, "Not initialized");
lua_error(L);
return 0;
}
if (!path || !path[0] || !lua_isfunction(L, -1)) {
lua_pushstring(L, "invalid arg list");
lua_error(L);
return 0;
}
srv->add_action(srv, path, lua_uh_action);
lua_getglobal(L, "__uh_action_cb");
lua_pushvalue(L, -2);
lua_setfield(L, -2, path);
return 0;
}
static int lua_uh_server_free(lua_State *L)
{
struct lua_uh_server *lsrv = lua_touserdata(L, 1);
if (lsrv->srv) {
lsrv->srv->free(lsrv->srv);
lsrv->srv = NULL;
}
return 0;
}
static const luaL_Reg server_mt[] = {
{ "add_action", lua_uh_add_action },
{ "free", lua_uh_server_free },
{ NULL, NULL }
};
static int lua_uh_new(lua_State *L)
{
int port = lua_tointeger(L, -1);
const char *address = lua_tostring(L, -2);
struct lua_uh_server *lsrv;
struct uh_server *srv;
srv = uh_server_new(address, port);
if (!srv) {
lua_pushnil(L);
lua_pushstring(L, "Bind failed");
return 2;
}
lsrv = uh_create_userdata(L, sizeof(struct lua_uh_server), server_mt, lua_uh_server_free);
lsrv->srv = srv;
lsrv->srv->L = L;
return 1;
}
static int lua_uh_send_header(lua_State *L)
{
struct uh_client *cl = lua_touserdata(L, 1);
int code = lua_tointeger(L, 2);
const char *summary = lua_tostring(L, 3);
int len = lua_tointeger(L, 4);
cl->send_header(cl, code, summary, len);
return 0;
}
static int lua_uh_append_header(lua_State *L)
{
struct uh_client *cl = lua_touserdata(L, 1);
const char *name = lua_tostring(L, 2);
const char *value = lua_tostring(L, 2);
cl->append_header(cl, name, value);
return 0;
}
static int lua_uh_header_end(lua_State *L)
{
struct uh_client *cl = lua_touserdata(L, 1);
cl->header_end(cl);
return 0;
}
static int lua_uh_send(lua_State *L)
{
struct uh_client *cl = lua_touserdata(L, 1);
const char *data;
size_t len;
data = lua_tolstring(L, 2, &len);
cl->send(cl, data, len);
return 0;
}
static int lua_uh_chunk_send(lua_State *L)
{
struct uh_client *cl = lua_touserdata(L, 1);
const char *data;
size_t len;
data = lua_tolstring(L, 2, &len);
cl->chunk_send(cl, data, len);
return 0;
}
static int lua_uh_request_done(lua_State *L)
{
struct uh_client *cl = lua_touserdata(L, 1);
cl->request_done(cl);
return 0;
}
static const luaL_Reg uhttpd_fun[] = {
{"new", lua_uh_new},
{"send_header", lua_uh_send_header},
{"append_header", lua_uh_append_header},
{"header_end", lua_uh_header_end},
{"send", lua_uh_send},
{"chunk_send", lua_uh_chunk_send},
{"request_done", lua_uh_request_done},
{NULL, NULL}
};
int luaopen_uhttpd(lua_State *L)
{
lua_createtable(L, 1, 0);
lua_setglobal(L, "__uh_action_cb");
lua_newtable(L);
luaL_setfuncs(L, uhttpd_fun, 0);
lua_pushstring(L, UHTTPD_VERSION_STRING);
lua_setfield(L, -2, "VERSION");
return 1;
}

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@ -0,0 +1,43 @@
/*
* Copyright (C) 2017 Jianhui Zhao <jianhuizhao329@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#ifndef _UHTTPD_LUA_H
#define _UHTTPD_LUA_H
#include <lauxlib.h>
#include <lualib.h>
/* Compatibility defines */
#if LUA_VERSION_NUM <= 501
#define lua_setuservalue(L, i) lua_setfenv((L), (i))
#define lua_getuservalue(L, i) lua_getfenv((L), (i))
/* NOTE: this only works if nups == 0! */
#define luaL_setfuncs(L, fns, nups) luaL_register((L), NULL, (fns))
#define lua_rawlen(L, i) lua_objlen((L), (i))
#endif
struct lua_uh_server {
struct uh_server *srv;
};
#endif