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<?php
/* Reminder: always indent with 4 spaces (no tabs). */
// +---------------------------------------------------------------------------+
// | Copyright (c) 2008, Demian Turner |
// | All rights reserved. |
// | |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | are met: |
// | |
// | o Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | o Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution. |
// | o The names of the authors may not be used to endorse or promote |
// | products derived from this software without specific prior written |
// | permission. |
// | |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
// | |
// +---------------------------------------------------------------------------+
// | Seagull 0.6 |
// +---------------------------------------------------------------------------+
// | RssMgr.php |
// +---------------------------------------------------------------------------+
// | Authors: Fabio Bacigalupo <seagull@open-haus.de> |
// | Demian Turner <demian@phpkitchen.com> |
// +---------------------------------------------------------------------------+
// $Id: RssMgr.php,v 1.4 2005/06/23 18:21:25 demian Exp $
require_once SGL_CORE_DIR . '/Item.php';
define('SGL_FEED_RSS_VERSION', '2.0');
define('SGL_FEED_ITEM_LIMIT', 10);
define('SGL_FEED_ITEM_LIMIT_MAXIMUM', 50);
define('SGL_ITEM_TYPE_ARTICLE_HTML', 2);
define('SGL_ITEM_TYPE_ARTICLE_NEWS', 4);
define('SGL_CATEGORY_NEWS_ID', 1);
/**
* A class to build RSS 2.0 compliant export.
*
*/
class RssMgr extends SGL_Manager
{
var $feed;
function RssMgr()
{
SGL::logMessage(null, PEAR_LOG_DEBUG);
parent::SGL_Manager();
$this->masterTemplate = 'masterFeed.html';
$this->template = 'masterRss.xml';
$this->_aActionsMapping = array(
'news' => array('news'),
);
$this->feed = new SGL_Feed();
$this->feed->xml_version = "1.0";
$this->feed->xml_encoding = "utf-8";
$this->feed->rss_version = SGL_FEED_RSS_VERSION;
$this->feed->docs = 'http://blogs.law.harvard.edu/tech/rss';
$this->feed->title = $this->conf['RssMgr']['feedTitle'];
$this->feed->description = $this->conf['RssMgr']['feedDescription'];
$this->feed->copyright = $this->conf['RssMgr']['feedCopyright'];
$this->feed->managingeditor = $this->conf['RssMgr']['feedEmail'] . " (" . $this->conf['RssMgr']['feedEditor'] . ")";
$this->feed->webmaster = $this->conf['RssMgr']['feedEmail'] . " (" . $this->conf['RssMgr']['feedWebmaster'] . ")";
$this->feed->ttl = $this->conf['RssMgr']['feedRssTtl'];
$this->feed->link = $this->conf['RssMgr']['feedUrl'];
$this->feed->syndicationurl = $this->conf['RssMgr']['feedSyndicationUrl'];
// $this->feed->lastbuilddate = $this->datetime2Rfc2822();
$this->feed->pubdate = $this->datetime2Rfc2822();
$this->feed->generator = 'Seagull RSS Manager';
/* $image = new stdClass();
$image->url = ;
$image->title = ;
$image->link = ;
$image->width = ""; # Maximum value for width is 144, default value is 88.
$image->height = ""; # Maximum value for height is 400, default value is 31.
$image->description = ;
$this->feed->image = $image;*/
#$this->feed->mrss["ns"] = 'xmlns:media="http://search.yahoo.com/mrss"';
#$this->feed->itunes["ns"] = 'xmlns:itunes="http://www.itunes.com/DTDs/Podcast-1.0.dtd"';
}
function validate($req, &$input)
{
SGL::logMessage(null, PEAR_LOG_DEBUG);
$this->validated = true;
$input->error = array();
$input->pageTitle = $this->pageTitle;
$input->masterTemplate = $this->masterTemplate;
$input->template = $this->template;
$input->action = ($req->get('action')) ? $req->get('action') : 'news';
$input->limit = ($req->get('limit')) ? $req->get('limit') : 10;
return $input;
}
/**
*
* Generate a RSS feed with the latest news from the startpage.
*
* @param object $input
* @param object $output
*
* @return string XML
*/
function _cmd_news(&$input, &$output)
{
SGL::logMessage(null, PEAR_LOG_DEBUG);
$output->template = 'masterRss.xml';
$this->feed->category[]["content"] = $this->conf['RssMgr']['feedCategory'];
$limit = $this->normalizeLimit($input->limit);
$res = $this->getNews($limit);
if (($res !== false) && (!empty($res))) {
foreach ($res as $article) {
$item = array();
$item["title"] = $article["title"];
$item["link"] = SGL_Output::makeUrl('view','articleview','publisher', array(),
"frmArticleID|{$article["id"]}");
$item["description"] = SGL_String::summariseHtml($article["description"]);# .
#" " . SGL_String::translate("Read more");
$author_name = (!empty($article["fullname"]))
? " (" . $article["fullname"] . ")"
: " (" . $article["username"] . ")";
$item["author"] = $this->conf['RssMgr']['feedEmail'] . $author_name;
$item["source"]["url"] = '';
$item["source"]["content"] = '';
$item["guid"]["bool"] = "true";
$item["guid"]["permalink"] = $item["link"];
$item["comments"] = $item["link"];
$item["pubdate"] = $this->datetime2Rfc2822($article["issued"]);
$this->feed->items[] = $item;
}
// Set the pubDate to the release date of the newest item
$this->feed->pubdate = $this->feed->items[0]["pubdate"];
}
// set content type for header generation
$output->contentType = 'text/xml';
$output->feed = $this->feed;
}
function datetime2Rfc2822($date = "now")
{
SGL::logMessage(null, PEAR_LOG_DEBUG);
if (strlen($date) != 19) {
return date("r");
}
return date("r", strtotime($date));
}
function normalizeLimit($limit = null)
{
SGL::logMessage(null, PEAR_LOG_DEBUG);
if ((strtolower($limit) == "all") || ($limit > SGL_FEED_ITEM_LIMIT_MAXIMUM)) {
// Keep the transferred data limited
$limit = SGL_FEED_ITEM_LIMIT_MAXIMUM;
} elseif (is_int($limit) === true) {
$limit = $limit;
} else {
$limit = SGL_FEED_ITEM_LIMIT;
}
return $limit;
}
/**
*Fetch news used for feeds
*
* @param int $limit
*/
function getNews($limit = 10)
{
SGL::logMessage(null, PEAR_LOG_DEBUG);
$cache = SGL_Cache::singleton();
$hasCache = false;
if ($data = $cache->get('rss', 'export')) {
$aRes = unserialize($data);
// check if stored last_updated equals last_updated in db return cache
$hasCache = ($aRes['last_updated'] == $this->getLastUpdated()) ? true : false;
unset($aRes['last_updated']);
}
if (!$hasCache) {
$query = "
SELECT i.item_id AS id,
i.date_created AS created,
i.last_updated AS modified,
i.start_date AS issued,
ia.addition AS title,
ia2.addition AS description,
u.username AS username,
CONCAT(first_name, ' ', last_name) AS fullname
FROM
{$this->conf['table']['item']} i,
{$this->conf['table']['item_type']} it,
{$this->conf['table']['item_addition']} ia,
{$this->conf['table']['item_addition']} ia2,
{$this->conf['table']['item_type_mapping']} itm,
{$this->conf['table']['item_type_mapping']} itm2,
{$this->conf['table']['user']} u
WHERE ia.item_type_mapping_id = itm.item_type_mapping_id
AND i.created_by_id = u.usr_id
AND ia2.item_type_mapping_id = itm2.item_type_mapping_id
AND i.item_id = ia.item_id
AND i.item_id = ia2.item_id
AND it.item_type_id = itm.item_type_id
AND itm.field_type <> itm2.field_type
AND it.item_type_id = ?
AND i.start_date < ?
AND (i.expiry_date > ? OR i.expiry_date IS NULL)
AND i.status = ?
GROUP BY i.item_id
ORDER BY i.date_created DESC
LIMIT 0, ?
";
//Fix PHP5.3 (use MDB2)
$aRes = $this->dbh->getAll($query, array(
SGL_ITEM_TYPE_ARTICLE_HTML,
SGL_Date::getTime(),
SGL_Date::getTime(),
SGL_STATUS_PUBLISHED,
$limit), SGL_DB_FETCHMODE_ASSOC);
if (DB::isError($aRes)) {
SGL::raiseError('problem getting news: ' .
$aRes->getMessage(), SGL_ERROR_NOAFFECTEDROWS);
return false;
}
// add last_updated key/value
$aCache = $aRes;
$aCache['last_updated'] = $this->getLastUpdated();
// cache data
$data = serialize($aCache);
$cache->save($data, 'rss', 'export');
SGL::logMessage('RSS news from db', PEAR_LOG_DEBUG);
} else {
SGL::logMessage('RSS news from cache', PEAR_LOG_DEBUG);
}
return $aRes;
}
function getLastUpdated()
{
$dbh = SGL_DB::singleton();
$query = "SELECT MAX(last_updated)
FROM {$this->conf['table']['item']}
WHERE status = ". SGL_STATUS_PUBLISHED;
$result = $dbh->getOne($query);
return $result;
}
}
class SGL_Feed
{
var $xml_version;
var $xml_encoding;
var $rss_version;
var $docs;
var $title;
var $description;
var $copyright;
var $managingeditor;
var $webmaster;
var $category = array();
var $ttl;
var $link;
var $syndicationurl;
var $generator;
var $lastbuilddate;
var $pubdate;
var $image;
var $mrss = array();
var $itunes = array();
}
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