Class: Session

Inherits:
Object
  • Object
show all
Defined in:
lib/redpay/session.rb

Instance Method Summary collapse

Constructor Details

#initialize(app, key, endpoint) ⇒ Session

Returns a new instance of Session.



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
 
# File 'lib/redpay/session.rb', line 11

def initialize(app, key, endpoint)
  @app      = app
  @key      = key
  @endpoint = endpoint

  # Generate and save Random key
  @cipher = OpenSSL::Cipher::AES.new(128, :CBC)
  @cipher.encrypt
  
  @random = @cipher.random_key
  @iv = @cipher.random_iv

  # Have decipher ready to decrypt response  
  @decipher = OpenSSL::Cipher::AES.new(128, :CBC)
  @decipher.decrypt
  @decipher.key = @random
  @decipher.iv = @iv

  @public_key = OpenSSL::PKey::RSA.new(Base64.decode64(@key))
  @encrypted_random = Base64.encode64(@public_key.public_encrypt(Base64.encode64(@random)))
  #puts "encrypted_random ->" + @encrypted_random

  # POST Request sessionId
  begin
    uri = URI(@endpoint)
    header = {'Content-Type': 'text/json'}
    data = 
    {
      "rsaPublicKey" => @key,
      "aesKey" => @encrypted_random
    }
    
    # Create the HTTP objects
    http = Net::HTTP.new(uri.host, uri.port)
    http.use_ssl = true if uri.scheme == 'https'
    req = Net::HTTP::Post.new(uri.request_uri, header)
    req.body = data.to_json
    
    # Send the request
    res = http.request(req)

    # Parse and send back sessionId
    ses = JSON.parse(res.body)
    @sessionId = ses["sessionId"]
    # puts "sessionId ->" + @sessionId
  rescue => e
    @sessionId = "ERROR #{e}"
  end
end

Instance Method Details

#Send(request) ⇒ Object 



61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
 
# File 'lib/redpay/session.rb', line 61

def Send(request)
  plaintext_request = request.to_json;
  #puts "plaintext_request -> " + plaintext_request
  encrypted = @cipher.update(plaintext_request) + @cipher.final
  #encrypted_request = URI::encode(Base64.encode64(encrypted))
  encrypted_request = Base64.encode64(encrypted)
  #puts "encrypted_request -> " + encrypted_request
  
  data = 
  {
    "sessionId" => @sessionId,
    "app" => @app,
    "iv" => Base64.encode64(@iv),
    "aesData" => encrypted_request
  }

  #POST Request packet
  begin
    uri = URI(@endpoint)
    header = {'Content-Type': 'text/json'}

    # Create the HTTP objects
    http = Net::HTTP.new(uri.host, uri.port)
    http.use_ssl = true if uri.scheme == 'https'
    req = Net::HTTP::Post.new(uri.request_uri, header)
    req.body = data.to_json
    
    # Send the request
    res = http.request(req)

    # Get encrypted response
    encrypted_response = JSON.parse(res.body)

    # Decrypt response
    plain_response = @decipher.update(Base64.decode64(encrypted_response["aesData"])) + @decipher.final
    return JSON.parse(plain_response)
  rescue => e
    return "ERROR #{e}"
  end
end