1 function auth.openid._curl(url, curl_options)

2 -- NOTE: Don't accept URLs starting with file:// or other nasty protocols

3 if not string.find(url, "^[Hh][Tt][Tt][Pp][Ss]?://") then

4 return nil

5 end

6 local options = table.new(curl_options)

7 options[#options+1] = "-i"

8 options[#options+1] = url

9 local stdout, errmsg, status = os.pfilter(nil, "curl", table.unpack(options))

10 if not stdout then

11 error("Error while executing curl: " .. errmsg)

12 end

13 if status ~= 0 then

14 return nil

15 end

16 local status = tonumber(string.match(stdout, "^[^ ]+ *([0-9]*)"))

17 local headers = string.match(stdout, "(\r?\n.-\r?\n)\r?\n")

18 local body = string.match(stdout, "\r?\n\r?\n(.*)")

19 return status, headers, body

20 end