Module: Axlsx::UriUtils

Defined in:
lib/axlsx/util/uri_utils.rb

Overview

This module defines some utils related to mime type detection

Class Method Summary collapse

Class Method Details

.fetch_headers(uri, redirect_limit = 5) ⇒ Object

Performs an HTTP GeT request fetching only headers

Raises:

  • (ArgumentError) 


11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
# File 'lib/axlsx/util/uri_utils.rb', line 11

def fetch_headers(uri, redirect_limit = 5)
  redirect_count = 0
  use_get = false

  while redirect_count < redirect_limit
    case (response = fetch_headers_request(uri, use_get: use_get))
    when Net::HTTPSuccess
      return response
    when Net::HTTPMethodNotAllowed, Net::HTTPNotImplemented
      fail_response(response) if use_get
      use_get = true
      next # Retry current URL with GET
    when Net::HTTPRedirection
      uri = follow_redirect(uri, response)
      redirect_count += 1
    else
      fail_response(response)
    end
  end

  raise ArgumentError, "Too many redirects (exceeded #{redirect_limit})"
end