Class: TwoCaptcha::HTTP

Inherits:
Object
  • Object
show all
Defined in:
lib/two_captcha/http.rb

Overview

TwoCaptcha::HTTP exposes common HTTP routines that can be used by the TwoCaptcha API client.

Class Method Summary collapse

Class Method Details

.open_url(url) ⇒ String

Retrieve the contents of a captcha URL supporting HTTPS and redirects.



12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
 
# File 'lib/two_captcha/http.rb', line 12

def self.open_url(url)
  uri = URI(url)

  http = Net::HTTP.new(uri.host, uri.port)

  if uri.scheme == 'https'
    http.use_ssl = true
    http.verify_mode = OpenSSL::SSL::VERIFY_NONE
  end

  res = http.get(uri.request_uri)

  if (redirect = res.header['location'])
    open_url(redirect)
  else
    res.body
  end
end

.prepare_multipart_data(payload) ⇒ String

Prepare the multipart data to be sent via a :multipart request.



84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
 
# File 'lib/two_captcha/http.rb', line 84

def self.prepare_multipart_data(payload)
  boundary = 'randomstr' + rand(1_000_000).to_s # a random unique string

  content = []
  payload.each do |param, value|
    content << '--' + boundary
    content << "Content-Disposition: form-data; name=\"#{param}\""
    content << ''
    content << value
  end
  content << '--' + boundary + '--'
  content << ''

  [boundary, content.join("\r\n")]
end

.request(options = {}) ⇒ String

Perform an HTTP request with support to multipart requests.



41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
 
# File 'lib/two_captcha/http.rb', line 41

def self.request(options = {})
  uri     = URI(options[:url])
  method  = options[:method] || :get
  payload = options[:payload] || {}
  timeout = options[:timeout] || 60
  headers = { 'User-Agent' => TwoCaptcha::USER_AGENT }

  case method
  when :get
    uri.query = URI.encode_www_form(payload)
    req = Net::HTTP::Get.new(uri.request_uri, headers)

  when :post
    req = Net::HTTP::Post.new(uri.request_uri, headers)
    req.set_form_data(payload)

  when :multipart
    req = Net::HTTP::Post.new(uri.request_uri, headers)
    boundary, body = prepare_multipart_data(payload)
    req.content_type = "multipart/form-data; boundary=#{boundary}"
    req.body = body

  else
    fail TwoCaptcha::ArgumentError, "Illegal HTTP method (#{method})"
  end

  http = Net::HTTP.new(uri.hostname, uri.port)
  http.use_ssl = true if (uri.scheme == 'https')
  http.open_timeout = timeout
  http.read_timeout = timeout
  res = http.request(req)
  res.body

rescue Net::OpenTimeout, Net::ReadTimeout
  raise TwoCaptcha::Timeout
end