Class: MTProto::Type::ServerDHInnerData

Inherits:
Object
  • Object
show all
Defined in:
lib/mtproto/type/server_dh_inner_data.rb

Constant Summary collapse

CONSTRUCTOR = 
0xb5890dba

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(nonce:, server_nonce:, g:, dh_prime:, g_a:, server_time:) ⇒ ServerDHInnerData

Returns a new instance of ServerDHInnerData.



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# File 'lib/mtproto/type/server_dh_inner_data.rb', line 67

def initialize(nonce:, server_nonce:, g:, dh_prime:, g_a:, server_time:)
  @nonce = nonce
  @server_nonce = server_nonce
  @g = g
  @dh_prime = dh_prime
  @g_a = g_a
  @server_time = server_time
end

Instance Attribute Details

#dh_prime ⇒ Object (readonly)

Returns the value of attribute dh_prime.



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# File 'lib/mtproto/type/server_dh_inner_data.rb', line 8

def dh_prime
  @dh_prime
end

#g ⇒ Object (readonly)

Returns the value of attribute g.



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# File 'lib/mtproto/type/server_dh_inner_data.rb', line 8

def g
  @g
end

#g_a ⇒ Object (readonly)

Returns the value of attribute g_a.



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# File 'lib/mtproto/type/server_dh_inner_data.rb', line 8

def g_a
  @g_a
end

#nonce ⇒ Object (readonly)

Returns the value of attribute nonce.



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# File 'lib/mtproto/type/server_dh_inner_data.rb', line 8

def nonce
  @nonce
end

#server_nonce ⇒ Object (readonly)

Returns the value of attribute server_nonce.



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# File 'lib/mtproto/type/server_dh_inner_data.rb', line 8

def server_nonce
  @server_nonce
end

#server_time ⇒ Object (readonly)

Returns the value of attribute server_time.



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# File 'lib/mtproto/type/server_dh_inner_data.rb', line 8

def server_time
  @server_time
end

Class Method Details

.deserialize(data) ⇒ Object 



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# File 'lib/mtproto/type/server_dh_inner_data.rb', line 10

def self.deserialize(data)
  constructor = data[0, 4].unpack1('L<')
  raise "Unexpected constructor: 0x#{constructor.to_s(16)}" unless constructor == CONSTRUCTOR

  offset = 4

  nonce = data[offset, 16]
  offset += 16

  server_nonce = data[offset, 16]
  offset += 16

  g = data[offset, 4].unpack1('L<')
  offset += 4

  dh_prime_length_byte = data[offset].ord
  offset += 1

  if dh_prime_length_byte == 254
    length_bytes = data[offset, 3].bytes
    dh_prime_length = length_bytes[0] | (length_bytes[1] << 8) | (length_bytes[2] << 16)
    offset += 3
  else
    dh_prime_length = dh_prime_length_byte
  end

  dh_prime = data[offset, dh_prime_length]
  offset += dh_prime_length
  offset += padding_length(dh_prime_length_byte == 254 ? dh_prime_length + 4 : dh_prime_length + 1)

  g_a_length_byte = data[offset].ord
  offset += 1

  if g_a_length_byte == 254
    length_bytes = data[offset, 3].bytes
    g_a_length = length_bytes[0] | (length_bytes[1] << 8) | (length_bytes[2] << 16)
    offset += 3
  else
    g_a_length = g_a_length_byte
  end

  g_a = data[offset, g_a_length]
  offset += g_a_length
  offset += padding_length(g_a_length_byte == 254 ? g_a_length + 4 : g_a_length + 1)

  server_time = data[offset, 4].unpack1('L<')

  new(
    nonce: nonce,
    server_nonce: server_nonce,
    g: g,
    dh_prime: dh_prime,
    g_a: g_a,
    server_time: server_time
  )
end

.padding_length(length) ⇒ Object 



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# File 'lib/mtproto/type/server_dh_inner_data.rb', line 76

def self.padding_length(length)
  (4 - (length % 4)) % 4
end

Instance Method Details

#padding_length(length) ⇒ Object 



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# File 'lib/mtproto/type/server_dh_inner_data.rb', line 80

def padding_length(length)
  self.class.padding_length(length)
end