h1. Apple Push Notification Server Toolkit

* http://github.com/bpoweski/apnserver

h2. Description

apnserver is a server and set of command line programs to send push notifications to the iPhone.
Apple recomends to maintain an open connection to the push notification service and refrain from 
opening up and tearing down SSL connections reapeated.  To solve this problem an intermediate 
network server is introduced that queues are requests to the APN service and sends them via a 
persistent connection.

h2. Remaining Tasks
 
 * Implement feedback service mechanism
 * Implement robust notification sending in reactor periodic scheduler
 
h2. Issues Fixed

 * second attempt at retry logic, SSL Errors close down sockets now
 * apnsend --badge option correctly sends integer number rather than string of number for aps json payload
 * connections are properly closed in Notification#push method now
 * better compatibility with Rails

h2. APN Server Daemon
   
<pre>
  <code>
Usage: apnserverd [options] --pem /path/to/pem
  --bind-address bind address (defaults to 0.0.0.0)
    bind address of the server daemon
  
  --proxy-port port 
    the port that the daemon will listen on (defaults to 22195)
  
  --server server
    APN Server (defaults to gateway.push.apple.com)
  
  --port port of the APN Server
    APN server port (defaults to 2195)
  
  --pem pem file path
    The PEM encoded private key and certificate.
    To export a PEM ecoded file execute 
    # openssl pkcs12 -in cert.p12 -out cert.pem -nodes -clcerts
 
  --help
    usage message  
  
  --daemon
    Runs process as daemon, not available on Windows
  </code>
</pre>

h2. APN Server Client

With the APN server client script you can send push notifications directly to 
Apple's APN server over an SSL connection or to the above daemon using a plain socket.
To send a notification to Apple's APN server using SSL the *--pem* option must be used.

<pre>
  <code>
Usage: apnsend [switches] (--b64-token | --hex-token) <token>
  --server <localhost>                 the apn server defaults to a locally running apnserverd
  --port <2195>                        the port of the apn server
  --pem <path>                         the path to the pem file, if a pem is supplied the server 
                                       defaults to gateway.push.apple.com:2195
  --alert <message>                    the message to send"
  --sound <default>                    the sound to play, defaults to 'default'
  --badge <number>                     the badge number
  --custom <json string>               a custom json string to be added to the main object
  --b64-token <token>                  a base 64 encoded device token
  --hex-token <token>                  a hex encoded device token
  --help                               this message
  </code>
</pre>

To send a base64 encoded push notification via the command line execute the following:

<pre>
  <code>
  $ apnsend --server gateway.push.apple.com --port 2195 --pem key.pem \
     --b64-token j92f12jh8lqcAwcOVeSIrsBxibaJ0xyCi8/AkmzNlk8= --sound default \
     --alert Hello
  </code>
</pre>

h2. Sending Notifications from Ruby

To configure the client to send to the local apnserverd process configure the ApnServer client with the following.

<pre>
  <code>
  # configured for a using the apnserverd proxy
  ApnServer::Config.host = 'localhost'
  ApnServer::Config.port = 22195
  </code>
</pre>

To configure the client to send directly to Apple's push notification server, bypassing the apnserverd process configure the following.

<pre>
  <code>
  ApnServer::Config.pem = '/path/to/pem'
  ApnServer::Config.host = 'gateway.push.apple.com'
  ApnServer::Config.port = 2195
  </code>
</pre>

Finally within we can send a push notification using the following code

<pre>
  <code>
  notification = ApnServer::Notification.new
  notification.device_token = Base64.decode64(apns_token) # if base64 encoded
  notification.alert = message
  notification.badge = 1
  notification.sound = 'default'
  notification.push
  </code>
</pre>


h2. Installation

To install apnserver execute the following gem command:

<pre>
<code>
  $ gem install bpoweski-apnserver --source http://gems.github.com
</code>
</pre>

Adding apnserver to your Rails application

<pre>
  <code>
  config.gem "bpoweski-apnserver", :lib => 'apnserver', :source => "http://gems.github.com"
  </code>
</pre>

h2. License

(The MIT License)

Copyright (c) 2009 Ben Poweski

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.