Class: ApnsGatling::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/apns_gatling/apns_client.rb

Constant Summary collapse

DRAFT = 
'h2'.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(team_id, auth_key_id, ecdsa_key, sandbox = false) ⇒ Client

Returns a new instance of Client.



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# File 'lib/apns_gatling/apns_client.rb', line 14

def initialize(team_id, auth_key_id, ecdsa_key, sandbox = false)
  @token_maker = Token.new(team_id, auth_key_id, ecdsa_key)
  @sandbox = sandbox
  @mutex = Mutex.new
  @requests = {}
  @cv = ConditionVariable.new
  init_vars
end

Instance Attribute Details

#sandbox ⇒ Object (readonly)

Returns the value of attribute sandbox.



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# File 'lib/apns_gatling/apns_client.rb', line 12

def sandbox
  @sandbox
end

#token ⇒ Object (readonly)

Returns the value of attribute token.



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# File 'lib/apns_gatling/apns_client.rb', line 12

def token
  @token
end

#token_maker ⇒ Object (readonly)

Returns the value of attribute token_maker.



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# File 'lib/apns_gatling/apns_client.rb', line 12

def token_maker
  @token_maker
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/apns_gatling/apns_client.rb', line 204

def close
  exit_thread(@socket_thread)
  init_vars
  @connection = nil
end

#connection ⇒ Object

connection



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# File 'lib/apns_gatling/apns_client.rb', line 128

def connection
  @connection ||= HTTP2::Client.new.tap do |conn|
    conn.on(:frame) do |bytes|
      @mutex.synchronize do
        @socket.write bytes
        @socket.flush
        @first_data_sent = true
      end
    end
  end
end

#connection_error(e) ⇒ Object 



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# File 'lib/apns_gatling/apns_client.rb', line 55

def connection_error(e)
  @mutex.synchronize do 
    @requests.values.map do | request | 
      block = request[:block]
      response = request[:response]
      if block && response
        response.error_with("connection failed #{e}")
        block.call response
      end
    end
    @requests = {}
    @connection = nil
  end
end

#ensure_sent_before_receiving ⇒ Object 



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# File 'lib/apns_gatling/apns_client.rb', line 182

def ensure_sent_before_receiving
  while !@first_data_sent
    sleep 0.01
  end
end

#ensure_socket_open ⇒ Object

scoket



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# File 'lib/apns_gatling/apns_client.rb', line 141

def ensure_socket_open
  @mutex.synchronize do 
    return if @socket_thread
    @socket = new_socket
    @socket_thread = Thread.new do 
      begin 
        socket_loop
      rescue EOFError
        init_vars
        connection_error(SocketError.new('Socket was remotely closed'))
      rescue Exception => e
        init_vars
        connection_error(e)
      end
    end
  end
end

#exit_thread(thread) ⇒ Object 



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# File 'lib/apns_gatling/apns_client.rb', line 210

def exit_thread(thread)
  return unless thread
  thread.exit
  thread.join
end

#host ⇒ Object 



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# File 'lib/apns_gatling/apns_client.rb', line 47

def host
  if sandbox
    APPLE_DEVELOPMENT_SERVER
  else
    APPLE_PRODUCTION_SERVER
  end
end

#init_vars ⇒ Object 



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# File 'lib/apns_gatling/apns_client.rb', line 23

def init_vars
  @mutex.synchronize do 
    @socket.close if @socket && !@socket.closed?
    @socket = nil
    @socket_thread = nil
    @first_data_sent = false
    @token_generated_at = 0
    @blocking = true
  end
end

#join ⇒ Object 



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# File 'lib/apns_gatling/apns_client.rb', line 216

def join
  @socket_thread.join if @socket_thread
end

#new_socket ⇒ Object 



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# File 'lib/apns_gatling/apns_client.rb', line 159

def new_socket
  ctx = OpenSSL::SSL::SSLContext.new
  ctx.verify_mode = OpenSSL::SSL::VERIFY_NONE

  # For ALPN support, Ruby >= 2.3 and OpenSSL >= 1.0.2 are required
  ctx.alpn_protocols = [DRAFT]
  ctx.alpn_select_cb = lambda do |protocols|
    DRAFT if protocols.include? DRAFT
  end

  tcp = TCPSocket.new(host, 443)
  socket = OpenSSL::SSL::SSLSocket.new(tcp, ctx)
  socket.sync_close = true
  socket.hostname = host
  socket.connect

  if socket.alpn_protocol != DRAFT
    puts "Failed to negotiate #{DRAFT} via ALPN"
    exit
  end
  socket
end

#provider_token ⇒ Object 



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# File 'lib/apns_gatling/apns_client.rb', line 34

def provider_token
  timestamp = Time.new.to_i
  if timestamp - @token_generated_at > 3550
    @mutex.synchronize do 
      @token_generated_at = timestamp
      @token = @token_maker.new_token
    end
    @token
  else
    @token
  end
end

#push(message, &block) ⇒ Object

push message



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# File 'lib/apns_gatling/apns_client.rb', line 71

def push(message, &block)
  request = Request.new(message, provider_token, host)
  response = Response.new(message)
  @mutex.synchronize do 
    @requests[request.id] = {block: block, response: response}
  end

  begin
    ensure_socket_open
    stream = connection.new_stream
  rescue SocketError => e
    response.error_with("create connection failed #{e}")
    block.call response
    return
  rescue HTTP2::Error::StreamLimitExceeded
    response.error_with('stream limit exceeded')
    block.call response
    return
  rescue HTTP2::Error::ConnectionClosed
    close
    response.error_with('connection closed')
    block.call response
    return
  rescue StandardError => e
    close
    response.error_with("standard error #{e}")
    block.call response
    return
  end

  stream.on(:close) do
    @mutex.synchronize do 
      @requests.delete request.id
      @token_generated_at = 0 if response.status == '403' && response.error[:reason] == 'ExpiredProviderToken' 
      if @blocking 
        @blocking = false
        @cv.signal
      end
      block.call response if block
    end
  end

  stream.on(:headers) do |h|
    hs = Hash[*h.flatten]
    response.headers.merge!(hs)
  end

  stream.on(:data) do |d|
    response.data << d
  end

  stream.headers(request.headers, end_stream: false)
  stream.data(request.data)
  @mutex.synchronize { @cv.wait(@mutex, 60) } if @blocking
end

#socket_loop ⇒ Object 



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# File 'lib/apns_gatling/apns_client.rb', line 188

def socket_loop
  ensure_sent_before_receiving
  loop do
    begin
      data = @socket.read_nonblock(1024)
      connection << data # in
    rescue IO::WaitReadable
      IO.select([@socket])
      retry
    rescue IO::WaitWritable
      IO.select(nil, [@socket])
      retry
    end
  end
end