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|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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For_More_Tools:
-- Copyright (C) Yichun Zhang (agentzh)
local ffi = require "ffi"
local base = require "resty.core.base"
local C = ffi.C
local ffi_string = ffi.string
local ngx = ngx
local type = type
local error = error
local tostring = tostring
local get_string_buf = base.get_string_buf
local subsystem = ngx.config.subsystem
local ngx_lua_ffi_escape_uri
local ngx_lua_ffi_unescape_uri
local ngx_lua_ffi_uri_escaped_length
local NGX_ESCAPE_URI = 0
local NGX_ESCAPE_URI_COMPONENT = 2
local NGX_ESCAPE_MAIL_AUTH = 6
if subsystem == "http" then
ffi.cdef[[
size_t ngx_http_lua_ffi_uri_escaped_length(const unsigned char *src,
size_t len, int type);
void ngx_http_lua_ffi_escape_uri(const unsigned char *src, size_t len,
unsigned char *dst, int type);
size_t ngx_http_lua_ffi_unescape_uri(const unsigned char *src,
size_t len, unsigned char *dst);
]]
ngx_lua_ffi_escape_uri = C.ngx_http_lua_ffi_escape_uri
ngx_lua_ffi_unescape_uri = C.ngx_http_lua_ffi_unescape_uri
ngx_lua_ffi_uri_escaped_length = C.ngx_http_lua_ffi_uri_escaped_length
elseif subsystem == "stream" then
ffi.cdef[[
size_t ngx_stream_lua_ffi_uri_escaped_length(const unsigned char *src,
size_t len, int type);
void ngx_stream_lua_ffi_escape_uri(const unsigned char *src, size_t len,
unsigned char *dst, int type);
size_t ngx_stream_lua_ffi_unescape_uri(const unsigned char *src,
size_t len, unsigned char *dst);
]]
ngx_lua_ffi_escape_uri = C.ngx_stream_lua_ffi_escape_uri
ngx_lua_ffi_unescape_uri = C.ngx_stream_lua_ffi_unescape_uri
ngx_lua_ffi_uri_escaped_length = C.ngx_stream_lua_ffi_uri_escaped_length
end
ngx.escape_uri = function (s, esc_type)
if type(s) ~= 'string' then
if not s then
s = ''
else
s = tostring(s)
end
end
if esc_type == nil then
esc_type = NGX_ESCAPE_URI_COMPONENT
else
if type(esc_type) ~= 'number' then
error("\"type\" is not a number", 3)
end
if esc_type < NGX_ESCAPE_URI or esc_type > NGX_ESCAPE_MAIL_AUTH then
error("\"type\" " .. esc_type .. " out of range", 3)
end
end
local slen = #s
local dlen = ngx_lua_ffi_uri_escaped_length(s, slen, esc_type)
-- print("dlen: ", tonumber(dlen))
if dlen == slen then
return s
end
local dst = get_string_buf(dlen)
ngx_lua_ffi_escape_uri(s, slen, dst, esc_type)
return ffi_string(dst, dlen)
end
ngx.unescape_uri = function (s)
if type(s) ~= 'string' then
if not s then
s = ''
else
s = tostring(s)
end
end
local slen = #s
local dlen = slen
local dst = get_string_buf(dlen)
dlen = ngx_lua_ffi_unescape_uri(s, slen, dst)
return ffi_string(dst, dlen)
end
return {
version = base.version,
}