remove pubsubhubbub: dead

[tt-rss.git] / lib / pubsubhubbub / Subscriber.php

diff --git a/lib/pubsubhubbub/Subscriber.php b/lib/pubsubhubbub/Subscriber.php
deleted file mode 100644 (file)
index 5b980a1..0000000
--- a/lib/pubsubhubbub/Subscriber.php
+++ /dev/null
@@ -1,210 +0,0 @@
-<?php
-/**
- * A PHP client library for pubsubhubbub.
- *
- * @link    http://code.google.com/p/pubsubhubbub/
- *
- * @author  Josh Fraser | joshfraser.com | josh@eventvue.com
- * @license Apache License 2.0
- */
-namespace Pubsubhubbub\Subscriber;
-
-use InvalidArgumentException;
-
-class Subscriber
-{
-    /**
-     * Put your google key here.
-     * Required if you want to use the google feed API to lookup RSS feeds.
-     *
-     * @var string
-     */
-    protected $google_key = '';
-
-    /**
-     * @var string
-     */
-    protected $hub_url;
-
-    /**
-     * @var string
-     */
-    protected $callback_url;
-
-    /**
-     * @var string
-     */
-    protected $credentials;
-
-    /**
-     * @var string accepted values are "async" and "sync"
-     */
-    protected $verify = 'async';
-
-    /**
-     * @var string
-     */
-    protected $verify_token;
-
-    /**
-     * @var string
-     */
-    protected $lease_seconds;
-
-    /**
-     * Create a new Subscriber (credentials added for SuperFeedr support).
-     *
-     * @param string $hub_url
-     * @param string $callback_url
-     * @param string $credentials
-     */
-    public function __construct($hub_url, $callback_url, $credentials = false)
-    {
-        if (! isset($hub_url)) {
-            throw new InvalidArgumentException('Please specify a hub url');
-        }
-
-        if (! preg_match('|^https?://|i', $hub_url)) {
-            throw new InvalidArgumentException('The specified hub url does not appear to be valid: ' . $hub_url);
-        }
-
-        if (! isset($callback_url)) {
-            throw new InvalidArgumentException('Please specify a callback');
-        }
-
-        $this->hub_url = $hub_url;
-        $this->callback_url = $callback_url;
-        $this->credentials = $credentials;
-    }
-
-    /**
-     * $use_regexp lets you choose whether to use google AJAX feed api (faster, but cached) or a regexp to read from site.
-     *
-     * @param string   $url
-     * @param callable $http_function
-     *
-     * @return string
-     */
-    public function find_feed($url, $http_function = false)
-    {
-        // using google feed API
-        $url = "http://ajax.googleapis.com/ajax/services/feed/lookup?key={$this->google_key}&v=1.0&q=" . urlencode($url);
-        // fetch the content
-        if ($http_function) {
-            $response = $http_function($url);
-        } else {
-            $response = $this->http($url);
-        }
-
-        $result = json_decode($response, true);
-        $rss_url = $result['responseData']['url'];
-
-        return $rss_url;
-    }
-
-    /**
-     * Subscribe to a topic.
-     *
-     * @param string   $topic_url
-     * @param callable $http_function
-     *
-     * @return mixed
-     */
-    public function subscribe($topic_url, $http_function = false)
-    {
-        return $this->change_subscription('subscribe', $topic_url, $http_function);
-    }
-
-    /**
-     * Unsubscribe from a topic.
-     *
-     * @param string   $topic_url
-     * @param callable $http_function
-     *
-     * @return mixed
-     */
-    public function unsubscribe($topic_url, $http_function = false)
-    {
-        return $this->change_subscription('unsubscribe', $topic_url, $http_function);
-    }
-
-    /**
-     * Helper function since sub/unsub are handled the same way.
-     *
-     * @param string   $mode
-     * @param string   $topic_url
-     * @param callable $http_function
-     *
-     * @return mixed
-     */
-    private function change_subscription($mode, $topic_url, $http_function = false)
-    {
-        if (! isset($topic_url)) {
-            throw new InvalidArgumentException('Please specify a topic url');
-        }
-
-        // lightweight check that we're actually working w/ a valid url
-        if (! preg_match('|^https?://|i', $topic_url)) {
-            throw new InvalidArgumentException('The specified topic url does not appear to be valid: ' . $topic_url);
-        }
-
-        // set the mode subscribe/unsubscribe
-        $post_string = 'hub.mode=' . $mode;
-        $post_string .= '&hub.callback=' . urlencode($this->callback_url);
-        $post_string .= '&hub.verify=' . $this->verify;
-        $post_string .= '&hub.verify_token=' . $this->verify_token;
-        $post_string .= '&hub.lease_seconds=' . $this->lease_seconds;
-
-        // append the topic url parameters
-        $post_string .= '&hub.topic=' . urlencode($topic_url);
-
-        // make the http post request and return true/false
-        // easy to over-write to use your own http function
-        if ($http_function) {
-            return call_user_func_array($http_function, [$this->hub_url, $post_string]);
-        }
-
-        return $this->http($this->hub_url, $post_string);
-    }
-
-    /**
-     * Default http function that uses curl to post to the hub endpoint.
-     *
-     * @param string $url
-     * @param string $post_string
-     *
-     * @return mixed
-     */
-    private function http($url, $post_string)
-    {
-
-        // add any additional curl options here
-        $options = [
-            CURLOPT_URL            => $url,
-            CURLOPT_USERAGENT      => 'PubSubHubbub-Subscriber-PHP/1.0',
-            CURLOPT_RETURNTRANSFER => true,
-        ];
-
-        if ($post_string) {
-            $options[CURLOPT_POST] = true;
-            $options[CURLOPT_POSTFIELDS] = $post_string;
-        }
-
-        if ($this->credentials) {
-            $options[CURLOPT_USERPWD] = $this->credentials;
-        }
-
-        $ch = curl_init();
-        curl_setopt_array($ch, $options);
-
-        $response = curl_exec($ch);
-        $info = curl_getinfo($ch);
-
-        // all good -- anything in the 200 range
-        if (substr($info['http_code'], 0, 1) == '2') {
-            return $response;
-        }
-
-        return false;
-    }
-}