This is a Symfony2 bundle which helps your application act as a subscriber to a PubSubHubbub hub. Supports subscription via Superfeedr.

Installation

Add the bundle to your vendors directory.

$ git submodule add [email protected]:hearsayit/PubSubHubbubBundle.git src/vendors/bundles/Hearsay/PubSubHubbubBundle

Register the Hearsay namespace with the autoloader.

// app/autoload.php

$loader->registerNamespaces(array(
    // ...

    'Hearsay' => __DIR__.'/../vendor/bundles',

    // ...
));

Add the bundle to your kernel.

// app/AppKernel.php

public function registerBundles()
{
    return array(
        // ...

        new Hearsay\PubSubHubbubBundle\HearsayPubSubHubbubBundle(),

        // ...
    );
}

Add the bundle routes.

# app/config/routing.yml

# ...
_pubsubhubbub:
    resource: @HearsayPubSubHubbubBundle/Resources/config/routing.yml

Configuration

Set up a hub connection.

The minimal configuration takes a hub URL and a callback specification:

hearsay_pub_sub_hubbub:
    hub:           http://hub.com
    callback:    
        host:      your.app.com              # Must be explicitly specified
        base_url:  /your_app_subdirectory    # Defaults to empty
        scheme:    https                     # Defaults to http

The callback configuration is required to allow for consistent callback URLs no matter how you subscribe to feeds (from the command line, from a web interface, etc.).

Tell the bundle which topics it's allowed to subscribe to.

You can specify a service implementing Hearsay\PubSubHubbubBundle\Topic\TopicProviderInterface to control your allowed topic subscriptions (the default provider allows subscriptions to or unsubscriptions from any topic URL, so it's useful for testing but not at all secure):

hearsay_pub_sub_hubbub:
    # ...
    provider:
        service:   your_service_id

A Doctrine provider is included if your topics are database entities:

hearsay_pub_sub_hubbub:
    # ...
    provider:
        doctrine:
            entity:     \Your\Topic\Entity    # Must implement Hearsay\PubSubHubbubBundle\Topic\TopicInterface

You can specify a service implementing Hearsay\PubSubHubbubBundle\Handler\NotificationHandlerInterface to handle push notifications as they arrive (the default handler dispatches onPushNotificationReceived events):

hearsay_pub_sub_hubbub:
    # ...
    handler:      your_handler_service

Add your Superfeedr credentials if necessary.

Connecting to the Superfeedr hub requires some additional information:

hearsay_pub_sub_hubbub:
    # ...
    superfeedr:
        username: superfeedr_username
        password: superfeedr_password
        digest:   true      # Whether to receive daily digest notifications (false by default)

Start receiving push notifications!

Subscribe to topics.

To subscribe or unsubscribe from a topic from the command line (topic_id is the ID passed to your topic provider; if no provider is configured, this is just the topic URL):

app$ ./console pubsubhubbub:subscribe [-u] topic_id

Or, from a controller:

$this->get('hearsay_pubsubhubbub.hub_subscriber')->subscribe($topicId);
$this->get('hearsay_pubsubhubbub.hub_subscriber')->unsubscribe($topicId);