site/api/lib/cross.lua

--[[
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 this work for additional information regarding copyright ownership.
 The ASF licenses this file to You under the Apache License, Version 2.0
 (the "License"); you may not use this file except in compliance with
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     http://www.apache.org/licenses/LICENSE-2.0

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-- cross-server module for making apache and nginx work roughly the same way

local function setContentType(r, foo)
    if ngx and ngx.header then
        ngx.header['Content-Type'] = foo
    else
        r.content_type = foo
    end
end

_M = {}

local apr = nil
pcall(function() apr = require 'apr' end)

local function ngstart(handler)
    if ngx then
        _G.apache2 = {
            OK = 0
        }
        local r = {
            puts = function(r, ...) ngx.say(...) end,
            write = function(r, ...) ngx.say(...) end,
            md5 = function(r, foo) return ngx.md5(foo) end,
            clock = ngx.time,
            parseargs = function() return ngx.req.get_uri_args() end,
            parsebody = function()
                ngx.req.read_body()
                return ngx.req.get_post_args()
                end,
            getcookie = function(r, name) return ngx.var['cookie_' .. name] end,
            setcookie = function(r, tbl)
                ngx.header["Set-Cookie"] = ("%s=%s; Path=/;"):format(tbl.key, tbl.value)
            end,
            escape =   function(r, foo) return ngx.escape_uri(foo) end,
            unescape = function(r, foo) return ngx.unescape_uri(foo) end,
            sha1 = function(r, foo) return apr and apr.sha1(foo) or ngx.md5(foo) end,
            ivm_set = function(r, key, val) _M['ivm_' .. key] = val end,
            ivm_get = function(r, key) return _M['ivm_' .. key] end,
            hostname = ngx.var['http_host'],
            strcmp_match = function(str, pat)
                pat = pat:gsub("%.", "%%."):gsub("*", ".+")
                return str:match(pat)
            end,
            useragent_ip = ngx.var.remote_addr,
            base64_decode = function(r, foo) return ngx.decode_base64(foo) end,
            headers_out = ngx.header,
            port = 443 -- I don't know where to fetch this in nginx :(
        }
        handler(r)
    end
end

return {
    contentType = setContentType,
    start = ngstart,
    OK = apache2 and apache2.OK or 0
}