Class: Pushr::Daemon::ApnsSupport::ConnectionApns

Inherits:
Object
  • Object
show all
Defined in:
lib/pushr/daemon/apns_support/connection_apns.rb

Constant Summary collapse

IDLE_PERIOD = 
30 * 60
SELECT_TIMEOUT = 
0.2
ERROR_TUPLE_BYTES = 
6
APN_ERRORS = 
{
  1 => 'Processing error',
  2 => 'Missing device token',
  3 => 'Missing topic',
  4 => 'Missing payload',
  5 => 'Missing token size',
  6 => 'Missing topic size',
  7 => 'Missing payload size',
  8 => 'Invalid token',
  10 => 'Shutdown (APNS is in maintenance)',
  255 => 'None (unknown error)'
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(configuration, i = nil) ⇒ ConnectionApns

developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/CommunicatingWIthAPS.html#//apple_ref/doc/uid/TP40008194-CH101-SW3



25
26
27
28
29
30
31
32
33
34
35
36
37
38
 
# File 'lib/pushr/daemon/apns_support/connection_apns.rb', line 25

def initialize(configuration, i = nil)
  @configuration = configuration
  if i
    # Apns push connection
    @name = "#{@configuration.app}: ConnectionApns #{i}"
    @host = "gateway.#{configuration.sandbox ? 'sandbox.' : ''}push.apple.com"
    @port = 2195
  else
    @name = "#{@configuration.app}: FeedbackReceiver"
    @host = "feedback.#{configuration.sandbox ? 'sandbox.' : ''}push.apple.com"
    @port = 2196
  end
  written
end

Instance Attribute Details

#configuration ⇒ Object (readonly)

Returns the value of attribute configuration.



7
8
9
 
# File 'lib/pushr/daemon/apns_support/connection_apns.rb', line 7

def configuration
  @configuration
end

#last_write ⇒ Object

Returns the value of attribute last_write.



8
9
10
 
# File 'lib/pushr/daemon/apns_support/connection_apns.rb', line 8

def last_write
  @last_write
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



7
8
9
 
# File 'lib/pushr/daemon/apns_support/connection_apns.rb', line 7

def name
  @name
end

Instance Method Details

#check_for_error(notification) ⇒ Object 



91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
 
# File 'lib/pushr/daemon/apns_support/connection_apns.rb', line 91

def check_for_error(notification)
  # check for true, because check_for_error can be nil
  return if @configuration.skip_check_for_error == true

  if select(SELECT_TIMEOUT)
    error = nil

    if tuple = read(ERROR_TUPLE_BYTES)
      _, code, notification_id = tuple.unpack('ccN')

      if code.to_i == 8
        Pushr::FeedbackApns.create(app: @configuration.app, device: notification.device, follow_up: 'delete',
                                   failed_at: Time.now)
        Pushr::Daemon.logger.info("[#{@name}] Invalid device (error 8), feedback sent, message delivery failed"\
                                  " to #{notification.to_json}")
      else
        description = APN_ERRORS[code.to_i] || 'Unknown error. Possible push bug?'
        error = Pushr::Daemon::DeliveryError.new(code, notification, description, 'APNS')
      end
    else
      error = DisconnectionError.new
    end

    begin
      Pushr::Daemon.logger.error("[#{@name}] Error received, reconnecting...")
      reconnect
    ensure
      fail error if error
    end
  end
end

#close ⇒ Object 



47
48
49
50
51
 
# File 'lib/pushr/daemon/apns_support/connection_apns.rb', line 47

def close
  @ssl_socket.close if @ssl_socket
  @tcp_socket.close if @tcp_socket
rescue IOError
end

#connect ⇒ Object 



40
41
42
43
44
45
 
# File 'lib/pushr/daemon/apns_support/connection_apns.rb', line 40

def connect
  @ssl_context = setup_ssl_context
  @tcp_socket, @ssl_socket = connect_socket
rescue
  Pushr::Daemon.logger.error("#{@name}] Error connection to server, invalid certificate?")
end

#read(num_bytes) ⇒ Object 



53
54
55
 
# File 'lib/pushr/daemon/apns_support/connection_apns.rb', line 53

def read(num_bytes)
  @ssl_socket ? @ssl_socket.read(num_bytes) : false
end

#reconnect ⇒ Object 



86
87
88
89
 
# File 'lib/pushr/daemon/apns_support/connection_apns.rb', line 86

def reconnect
  close
  @tcp_socket, @ssl_socket = connect_socket
end

#select(timeout) ⇒ Object 



57
58
59
 
# File 'lib/pushr/daemon/apns_support/connection_apns.rb', line 57

def select(timeout)
  IO.select([@ssl_socket], nil, nil, timeout)
end

#write(data) ⇒ 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
 
# File 'lib/pushr/daemon/apns_support/connection_apns.rb', line 61

def write(data)
  reconnect_idle if idle_period_exceeded?

  retry_count = 0

  begin
    write_data(data)
  rescue Errno::EPIPE, Errno::ETIMEDOUT, Errno::ECONNRESET, OpenSSL::SSL::SSLError => e
    retry_count += 1

    if retry_count == 1
      Pushr::Daemon.logger.error("[#{@name}] Lost connection to #{@host}:#{@port} (#{e.class.name}), reconnecting...")
    end

    if retry_count <= 3
      reconnect
      sleep 1
      retry
    else
      raise ConnectionError, "#{@name} tried #{retry_count - 1} times to reconnect but failed (#{e.class.name})."
    end
  end
  check_for_error(data)
end