-- 指定模块引用目录，否则无法加载同目录下的其他文件
--package.path = package.path .. ';/usr/local/opt/openresty/nginx/scripts/?.lua';
package.path = package.path .. ';<SCRIPT_PATH>/?.lua';

local _M = {}

--local strip_path = require("strip_path")
--local Upyun = require('upyun')

function host(s)
    return (s.."/"):match("://(.-)/")
end


function _M.upt(uri)
    local hostname = host(uri)

    local secret;
    if (hostname == 'moicen.com') then
        secret = ngx.var.upt_moicen_secret
    elseif hostname == "alchemy-studio.cn" then
        secret = ngx.var.upt_alchemy_secret
    elseif hostname == "huiwings.cn" then
        secret = ngx.var.upt_huiwings_secret
    end

    ngx.log(ngx.INFO, 'url...' .. uri .. ' host...' .. hostname .. 'secret...' .. secret)
    local duration = ngx.var.upt_duration
    local etime = os.time() + duration
    local sign = ngx.md5(secret .. '&' .. etime .. '&' .. uri)
    ngx.log(ngx.INFO, 'sign...' .. sign .. ' etime..' .. etime)
    local upt = string.sub(sign, 13, 13 + 7) .. etime
    ngx.log(ngx.INFO, 'upt...' .. upt)
    return (upt)
end

return _M