Class: MTProto::Type::RPC::Users::Users

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

Constant Summary collapse

VECTOR_CONSTRUCTOR = 
0x1cb5c415
USER_CONSTRUCTOR = 
0x020b1422

Class Method Summary collapse

Class Method Details

.parse(response) ⇒ Object 



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# File 'lib/mtproto/type/rpc/users/users.rb', line 14

def self.parse(response)
  offset = 0

  constructor = response[offset, 4].unpack1('L<')
  offset += 4

  if constructor == Type::GzipPacked::CONSTRUCTOR
    response = Type::GzipPacked.unpack(response)
    constructor = response[0, 4].unpack1('L<')
    offset = 4
  end

  if constructor == Type::RpcError::CONSTRUCTOR
    error = Type::RpcError.deserialize(response)
    raise MTProto::RpcError.new(error.error_code, error.error_message)
  end

  # Expect Vector<User>
  raise "Expected Vector constructor, got 0x#{constructor.to_s(16)}" unless constructor == VECTOR_CONSTRUCTOR

  count = response[offset, 4].unpack1('L<')
  offset += 4

  users = []
  count.times do
    user_constructor = response[offset, 4].unpack1('L<')
    offset += 4

    next unless user_constructor == USER_CONSTRUCTOR

    # Parse User: flags:# flags2:# id:long access_hash:flags.0?long first_name:flags.1?string ...
    flags = response[offset, 4].unpack1('L<')
    offset += 4

    flags2 = response[offset, 4].unpack1('L<')
    offset += 4

    id = response[offset, 8].unpack1('Q<')
    offset += 8

    access_hash = nil
    if (flags & (1 << 0)) != 0
      access_hash = response[offset, 8].unpack1('Q<')
      offset += 8
    end

    first_name = nil
    if (flags & (1 << 1)) != 0
      len = response[offset].unpack1('C')
      offset += 1
      first_name = response[offset, len]
      offset += len
      padding = (4 - ((1 + len) % 4)) % 4
      offset += padding
    end

    last_name = nil
    if (flags & (1 << 2)) != 0
      len = response[offset].unpack1('C')
      offset += 1
      last_name = response[offset, len]
      offset += len
      padding = (4 - ((1 + len) % 4)) % 4
      offset += padding
    end

    users << {
      id: id,
      access_hash: access_hash,
      first_name: first_name,
      last_name: last_name,
      flags: flags,
      flags2: flags2
    }

    # Skip remaining fields - we don't need them for this test
    break
  end

  users
end