lua https request 调用

网上资料

引用ssl.https 包

local https = require("ssl.https")

之后按同http一样调用。

但是，这种只最基本的实现了访问https服务的要求，却没有验证数字证书的示例说明。

数字证书的调用

类似

wget --private-key /root/client.key --certificate /root/client.crt    --ca-certificate /root/ca.crt https://www.test.com -O wgetssl

curl --key /root/client.key --cert /root/client.crt    --cacert /root/ca.crt https://www.test.com

必须要传入证书文件

再搜 资料很少

最有用的是

http://notebook.kulchenko.com/programming/https-ssl-calls-with-lua-and-luasec

讲的是socket 建立连接，和https差了一层。

就差一步了……

再也没找到任何资料。

所以，查lua包源码

https的部分内容

local ssl    = require("ssl")
function request(url, body)
  local result_table = {}
  local stringrequest = type(url) == "string"
  if stringrequest then
    url = urlstring_totable(url, body, result_table)
  else
    url.url = default_https_port(url.url)
  end
  if http.PROXY or url.proxy then
    return nil, "proxy not supported"
  elseif url.redirect then
    return nil, "redirect not supported"
  elseif url.create then
    return nil, "create function not permitted"
  end
  -- New 'create' function to establish a secure connection
  url.create = tcp(url)
  local res, code, headers, status = http.request(url)
  if res and stringrequest then
    return table.concat(result_table), code, headers, status
  end
  return res, code, headers, status
end

-- Return a function which performs the SSL/TLS connection.
local function tcp(params)
   params = params or {}
   -- Default settings
   for k, v in pairs(cfg) do
      params[k] = params[k] or v
   end
   -- Force client mode
   params.mode = "client"
   -- 'create' function for LuaSocket
   return function ()
      local conn = {}
      conn.sock = try(socket.tcp())
      local st = getmetatable(conn.sock).__index.settimeout
      function conn:settimeout(...)
         return st(self.sock, ...)
      end
      -- Replace TCP's connection function
      function conn:connect(host, port)
         try(self.sock:connect(host, port))
         self.sock = try(ssl.wrap(self.sock, params))
         try(self.sock:dohandshake())
         reg(self, getmetatable(self.sock))
         return
      end
      return conn
  end
end

https.request

url.create = tcp(url)

会调用tcp函数。

params = params or {}
   -- Default settings
   for k, v in pairs(cfg) do
      params[k] = params[k] or v
   end 

self.sock = try(ssl.wrap(self.sock, params))

而tcp函数又用requset传入的参数创建名为 params的table类对象，传入params调用ssl.warp函数

好吧，再去ssl函数看源码

function newcontext(cfg)

   local succ, msg, ctx

   -- Create the context

   ctx, msg = context.create(cfg.protocol)

   if not ctx then return nil, msg end

   -- Mode

   succ, msg = context.setmode(ctx, cfg.mode)

   if not succ then return nil, msg end

   -- Load the key

   if cfg.key then

      succ, msg = context.loadkey(ctx, cfg.key, cfg.password)

      if not succ then return nil, msg end

   end

   -- Load the certificate

   if cfg.certificate then

      succ, msg = context.loadcert(ctx, cfg.certificate)

      if not succ then return nil, msg end

   end

   -- Load the CA certificates

   if cfg.cafile or cfg.capath then

      succ, msg = context.locations(ctx, cfg.cafile, cfg.capath)

      if not succ then return nil, msg end

   end

   -- Set the verification options

   succ, msg = optexec(context.setverify, cfg.verify, ctx)

   if not succ then return nil, msg end

   -- Set SSL options

   succ, msg = optexec(context.setoptions, cfg.options, ctx)

   if not succ then return nil, msg end

   -- Set the depth for certificate verification

   if cfg.depth then

      succ, msg = context.setdepth(ctx, cfg.depth)

      if not succ then return nil, msg end

   end

   return ctx

end

--

--

--

function wrap(sock, cfg)

   local ctx, msg

   if type(cfg) == "table" then

      ctx, msg = newcontext(cfg)

      if not ctx then return nil, msg end

   else

      ctx = cfg

   end

   local s, msg = core.create(ctx)

   if s then

      core.setfd(s, sock:getfd())

      sock:setfd(core.invalidfd)

      return s

   end

   return nil, msg 

end

眼前一亮，看到熟悉的证书参数了，key,password,ca...

懂的看代码就该如何作了。

首先wrap调用newcontext

而newcontext应用 之前request传入的参数

那把key,password,ca等，写入https.request就全通了。

写demo

测试通过。

不传证书

#!/usr/bin/lua
require("socket")
local https = require("ssl.https")

local one, code, headers, status = https.request{
           url = "https://www.test.com"
}
print(code)
print(header)
print(status)
print(one)

结果为

root@LeWiFi:~# lua luahttps.test
nil
nil
nil
nil

传入证书

#!/usr/bin/lua
require("socket")
local https = require("ssl.https")
local one, code, headers, status = https.request{
           url = "https://www.test.com",
           key = "/root/client.key",
           certificate="/root/client.crt",
           cafile="/root/ca.crt"
}
print(code)
print(header)
print(status)
print(one)

结果

root@LeWiFi:~# lua luahttps.test 

nil
HTTP/1.1  OK

success