AtlasFeed.php

<?php
use \FeedWriter\ATOM ;

date_default_timezone_set( "Asia/Tokyo" ) ;
require_once dirname(__FILE__)."/FeedWriter/Item.php" ;
require_once dirname(__FILE__)."/FeedWriter/Feed.php" ;
require_once dirname(__FILE__)."/FeedWriter/ATOM.php" ;


class AtlasFeed
{
    private $feed;
    
    private $applicaton ;
    
    /**
     * @brief 
     * @param 
     * @retval
     */
    function __construct($application)
    {
        $this->application = $application;
        
        $this->feed = new ATOM ;
        $this->feed->
          setTitle("Atlassian ".$application." version list")->
            setDate(new DateTime()) ;
    }

    /**
     * @brief 
     * @param 
     * @retval
     */
    function addJson($target_url, $use_cache = false)
    {
        $cache_file = sprintf('%s/%s_%s.json',
                              dirname(__FILE__),
                              $this->application,
                              md5($target_url));
        if (!$use_cache || !file_exists($cache_file)){
            ob_start();
            system(sprintf('wget -O %s %s', $cache_file, $target_url));
            $json = ob_get_clean();
        }
        $json = file_get_contents($cache_file);
        $json = substr($json, strlen('downloads('));
        $json = substr($json, 0, -1);
        $json = json_decode($json);

        $this->feed->setLink($target_url) ;

        foreach ($json as $release) {

            $item = $this->feed->createNewItem() ;

            $desc = sprintf("[size]=> %s\n[Release Notes]=> %s \n[Upgrade Notes]=> %s",
                            $release->size,
                            $release->releaseNotes,
                            $release->upgradeNotes
                            );
            $this->feed->addItem($item->setTitle($release->description)
                                 ->setLink($release->zipUrl)
                                 ->setDate(strtotime($release->released))
                                 ->setAuthor("Atlassian" )
                                 ->setDescription($desc)
                                 ->setContent(nl2br($desc)));
        }
        
        return $this;
    }
    
    /**
     * @brief 
     * @param 
     * @retval
     */
    function printFeed()
    {
        $this->feed->printFeed();
    }
}

atlassian-products-confluence.php

<?php
require_once dirname(__FILE__).'/AtlasFeed.php';
$feed = new AtlasFeed('confluence');
$feed->addJson('https://my.atlassian.com/download/feeds/current/confluence.json')->
  addJson('https://my.atlassian.com/download/feeds/archived/confluence.json')->
    printFeed();

atlassian-products-jira.php

<?php
require_once dirname(__FILE__).'/AtlasFeed.php';
$feed = new AtlasFeed('jira');
$feed->addJson('https://my.atlassian.com/download/feeds/current/jira-core.json')->
  addJson('https://my.atlassian.com/download/feeds/archived/jira-core.json')->
  addJson('https://my.atlassian.com/download/feeds/current/jira-servicedesk.json')->
  addJson('https://my.atlassian.com/download/feeds/archived/jira-servicedesk.json')->
  addJson('https://my.atlassian.com/download/feeds/current/jira-software.json')->
  addJson('https://my.atlassian.com/download/feeds/archived/jira-software.json')->
  addJson('https://my.atlassian.com/download/feeds/archived/jira.json')->
    printFeed();