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For_More_Tools:
local ffi = require "ffi"
local C = ffi.C
local os = os
local SOCKET_CTX_INDEX = 1
local NGX_OK = ngx.OK
local get_req_ssl, get_req_ssl_ctx
local get_socket_ssl, get_socket_ssl_ctx
local get_request
do
local ok, exdata = pcall(require, "thread.exdata")
if ok and exdata then
function get_request()
local r = exdata()
if r ~= nil then
return r
end
end
else
local getfenv = getfenv
function get_request()
return getfenv(0).__ngx_req
end
end
end
local stream_subsystem = false
local get_sock_ssl
if ngx.config.subsystem == "stream" then
stream_subsystem = true
ffi.cdef [[
typedef struct ngx_stream_lua_request_s ngx_stream_lua_request_t;
typedef struct ngx_stream_lua_socket_tcp_upstream_s ngx_stream_lua_socket_tcp_upstream_t;
int ngx_stream_lua_resty_openssl_aux_get_request_ssl(ngx_stream_lua_request_t *r,
void **_ssl_conn);
int ngx_stream_lua_resty_openssl_aux_get_request_ssl_ctx(ngx_stream_lua_request_t *r,
void **_sess);
int ngx_stream_lua_resty_openssl_aux_get_socket_ssl(ngx_stream_lua_socket_tcp_upstream_t *u,
void **_ssl_conn);
int ngx_stream_lua_resty_openssl_aux_get_socket_ssl_ctx(ngx_stream_lua_socket_tcp_upstream_t *u,
void **_sess);
int ngx_stream_lua_kong_get_socket_ssl(ngx_stream_lua_socket_tcp_upstream_t *u,
void **ssl_conn);
]]
local success
if not os.getenv("CI_SKIP_KONG_SSL_FUNCS") then
success, get_sock_ssl = pcall(function() return C.ngx_stream_lua_kong_get_socket_ssl end)
end
if not success or get_sock_ssl == nil then
get_sock_ssl = C.ngx_stream_lua_resty_openssl_aux_get_socket_ssl
end
else
ffi.cdef [[
typedef struct ngx_http_request_s ngx_http_request_t;
typedef struct ngx_http_lua_socket_tcp_upstream_s ngx_http_lua_socket_tcp_upstream_t;
int ngx_http_lua_resty_openssl_aux_get_request_ssl(ngx_http_request_t *r,
void **_ssl_conn);
int ngx_http_lua_resty_openssl_aux_get_request_ssl_ctx(ngx_http_request_t *r,
void **_sess);
int ngx_http_lua_resty_openssl_aux_get_socket_ssl(ngx_http_lua_socket_tcp_upstream_t *u,
void **_ssl_conn);
int ngx_http_lua_resty_openssl_aux_get_socket_ssl_ctx(ngx_http_lua_socket_tcp_upstream_t *u,
void **_sess);
int ngx_http_lua_kong_ffi_get_socket_ssl(ngx_http_lua_socket_tcp_upstream_t *u,
void **ssl_conn);
]]
local success
if not os.getenv("CI_SKIP_KONG_SSL_FUNCS") then
success, get_sock_ssl = pcall(function() return C.ngx_http_lua_kong_ffi_get_socket_ssl end)
end
if not success or get_sock_ssl == nil then
get_sock_ssl = C.ngx_http_lua_resty_openssl_aux_get_socket_ssl
end
end
local void_pp = ffi.new("void *[1]")
local ssl_type = ffi.typeof("SSL*")
local ssl_ctx_type = ffi.typeof("SSL_CTX*")
get_req_ssl = function()
local c = get_request()
local ret
if stream_subsystem then
ret = C.ngx_stream_lua_resty_openssl_aux_get_request_ssl(c, void_pp)
else
ret = C.ngx_http_lua_resty_openssl_aux_get_request_ssl(c, void_pp)
end
if ret ~= NGX_OK then
return nil, "cannot read r->connection->ssl->connection"
end
return ffi.cast(ssl_type, void_pp[0])
end
get_req_ssl_ctx = function()
local c = get_request()
local ret
if stream_subsystem then
ret = C.ngx_stream_lua_resty_openssl_aux_get_request_ssl_ctx(c, void_pp)
else
ret = C.ngx_http_lua_resty_openssl_aux_get_request_ssl_ctx(c, void_pp)
end
if ret ~= NGX_OK then
return nil, "cannot read r->connection->ssl->session_ctx"
end
return ffi.cast(ssl_ctx_type, void_pp[0])
end
get_socket_ssl = function(sock)
local u = sock[SOCKET_CTX_INDEX]
local ret = get_sock_ssl(u, void_pp)
if ret ~= NGX_OK then
return nil, "cannot read u->peer.connection->ssl->connection"
end
return ffi.cast(ssl_type, void_pp[0])
end
get_socket_ssl_ctx = function(sock)
local u = sock[SOCKET_CTX_INDEX]
local ret
if stream_subsystem then
ret = C.ngx_stream_lua_resty_openssl_aux_get_socket_ssl_ctx(u, void_pp)
else
ret = C.ngx_http_lua_resty_openssl_aux_get_socket_ssl_ctx(u, void_pp)
end
if ret ~= NGX_OK then
return nil, "cannot read u->peer.connection->ssl->session_ctx"
end
return ffi.cast(ssl_ctx_type, void_pp[0])
end
return {
get_req_ssl = get_req_ssl,
get_req_ssl_ctx = get_req_ssl_ctx,
get_socket_ssl = get_socket_ssl,
get_socket_ssl_ctx = get_socket_ssl_ctx,
}