Class: Zwiebel::HiddenService::OuterLayer

Inherits:
Object
  • Object
show all
Defined in:
lib/zwiebel/hidden_service/outer_layer.rb

Constant Summary collapse

FIELDS = 
%w(desc-auth-type desc-auth-ephemeral-key auth-client encrypted).freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(decrypted_data:) ⇒ OuterLayer

Returns a new instance of OuterLayer.



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# File 'lib/zwiebel/hidden_service/outer_layer.rb', line 22

def initialize(decrypted_data:)
  @decrypted_data = decrypted_data
  parse
end

Instance Attribute Details

#decrypted_data ⇒ Object

Returns the value of attribute decrypted_data.



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# File 'lib/zwiebel/hidden_service/outer_layer.rb', line 20

def decrypted_data
  @decrypted_data
end

Instance Method Details

#auth_clients ⇒ Object 



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# File 'lib/zwiebel/hidden_service/outer_layer.rb', line 76

def auth_clients
  @outer_layer["auth-client"]
end

#desc_auth_ephemeral_key ⇒ Object 



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# File 'lib/zwiebel/hidden_service/outer_layer.rb', line 72

def desc_auth_ephemeral_key
  @outer_layer["desc-auth-ephemeral-key"]
end

#desc_auth_type ⇒ Object 



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# File 'lib/zwiebel/hidden_service/outer_layer.rb', line 68

def desc_auth_type
  @outer_layer["desc-auth-type"]
end

#encrypted ⇒ Object 



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# File 'lib/zwiebel/hidden_service/outer_layer.rb', line 80

def encrypted
  @outer_layer["encrypted"]
end

#parse ⇒ Object 



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# File 'lib/zwiebel/hidden_service/outer_layer.rb', line 27

def parse
  @outer_layer = {}
  layer_current_field = nil
  decrypted_data.gsub("\x00", "").each_line do |line|
    line_field = line.split(" ")[0]
    if FIELDS.include?(line_field)
      layer_current_field = line_field
      if layer_current_field == "auth-client"
        if !@outer_layer[layer_current_field].nil?
          _, client_id, iv, cookie = line.split(" ")
          @outer_layer[layer_current_field].push({
            client_id: client_id,
            iv: iv,
            cookie: cookie
          })
        else
          _, client_id, iv, cookie = line.split(" ")
          @outer_layer[layer_current_field] = [{
            client_id: client_id,
            iv: iv,
            cookie: cookie
          }]
        end
      elsif @outer_layer[layer_current_field].nil? && !line.split(" ")[1..-1].nil?
        @outer_layer[layer_current_field] = line.split(" ")[1..-1].join(" ")
      elsif !@outer_layer[layer_current_field].nil? && !line.split(" ")[1..-1].nil?
        @outer_layer[layer_current_field] += line.split(" ")[1..-1].join(" ")
      else
        @outer_layer[layer_current_field] = ""
      end
    else
      outer_layer_value = @outer_layer[layer_current_field]
      if outer_layer_value.nil?
        @outer_layer[layer_current_field] = line
      else
        @outer_layer[layer_current_field] = outer_layer_value + line
      end
    end
  end
end