277 lines
9 KiB
PHP
Executable file
277 lines
9 KiB
PHP
Executable file
<?php
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/**
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* class_rssfeed.php uses:
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* RSSFeed: This class has methods for making a RSS 2.0 feed.
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* RSSMerger: This class has the ability to merge different RSS feeds and sort them after the date the feed items were posted.
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* @author David Laurell <david.laurell@gmail.com>
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*
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* + 03/2013
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* Few changes, AutoblogRSS and FileRSSFeed
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* @author Arthur Hoaro <http://hoa.ro>
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*/
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class RSSFeed {
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protected $xml;
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/**
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* Construct a RSS feed
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*/
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public function __construct() {
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$template = <<<END
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<?xml version="1.0" encoding="UTF-8" ?>
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<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
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<channel>
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</channel>
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</rss>
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END;
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$this->xml = new SimpleXMLElement($template);
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}
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/**
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* Set RSS Feed headers
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* @param $title the title of the feed
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* @param $link link to the website where you can find the RSS feed
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* @param $description a description of the RSS feed
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* @param $rsslink the link to this RSS feed
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*/
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public function setHeaders($title, $link, $description, $rsslink) {
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$atomlink = $this->xml->channel->addChild("atom:link","","http://www.w3.org/2005/Atom");
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$atomlink->addAttribute("href",$rsslink);
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$atomlink->addAttribute("rel","self");
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$atomlink->addAttribute("type","application/rss+xml");
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$this->xml->channel->title = $title;
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$this->xml->channel->link = $link;
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$this->xml->channel->description = $description;
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}
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/**
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* Set the language of the RSS feed
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* @param $lang the language of the RSS feed
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*/
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public function setLanguage($lang) {
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$this->xml->channel->addChild("language",$lang);
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}
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/**
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* Adds a picture to the RSS feed
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* @param $url URL to the image
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* @param $title The image title. Usually same as the RSS feed's title
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* @param $link Where the image should link to. Usually same as the RSS feed's link
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*/
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public function setImage($url, $title, $link) {
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$image = $this->xml->channel->addChild("image");
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$image->url = $url;
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$image->title = $title;
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$image->link = $link;
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}
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/**
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* Add a item to the RSS feed
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* @param $title The title of the RSS feed
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* @param $link Link to the item's url
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* @param $description The description of the item
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* @param $author The author who wrote this item
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* @param $guid Unique ID for this post
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* @param $timestamp Unix timestamp for making a date
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*/
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public function addItem($title, $link, $description, $author, $guid, $timestamp) {
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$item = $this->xml->channel->addChild("item");
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$item->title = $title;
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$item->description = $description;
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$item->link = $link;
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$item->guid = $guid;
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if( isset($guid['isPermaLink']))
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$item->guid['isPermaLink'] = $guid['isPermaLink'];
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if( !empty( $author) )
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$item->author = $author;
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$item->pubDate = date(DATE_RSS,intval($timestamp));
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}
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/**
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* Displays the RSS feed
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*/
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public function displayXML() {
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header('Content-type: application/rss+xml; charset=utf-8');
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echo $this->xml->asXML();
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exit;
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}
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public function getXML() {
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return $this->xml;
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}
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}
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class RSSMerger {
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private $feeds = array();
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/**
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* Constructs a RSSmerger object
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*/
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function __construct() {
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}
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/**
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* Populates the feeds array from the given url which is a rss feed
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* @param $url
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*/
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function add($xml) {
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foreach($xml->channel->item as $item) {
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$item->sitetitle = $xml->channel->title;
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$item->sitelink = $xml->channel->link;
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preg_match("/^[A-Za-z]{3}, ([0-9]{2}) ([A-Za-z]{3}) ([0-9]{4}) ([0-9]{2}):([0-9]{2}):([0-9]{2}) ([\+|\-]?[0-9]{4})$/", $item->pubDate, $match);
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$item->time = time($match[4]+($match[6]/100),$match[5],$match[6],date("m",strtotime($match[2])),$match[1],$match[3]);
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$this->feeds[] = $item;
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}
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}
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/**
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* Comparing function for sorting the feeds
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* @param $value1
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* @param $value2
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*/
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function feeds_cmp($value1,$value2) {
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if(intval($value1->time) == intval($value2->time))
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return 0;
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return (intval($value1->time) < intval($value2->time)) ? +1 : -1;
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}
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/**
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* Sorts the feeds array using the Compare function feeds_cmp
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*/
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function sort() {
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usort($this->feeds,Array("RssMerger","feeds_cmp"));
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}
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/**
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* This function return the feed items.
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* @param $limit how many feed items that should be returned
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* @return the feeds array
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*/
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function getFeeds($limit) {
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return array_slice($this->feeds,0,$limit);
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}
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}
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class FileRSSFeed extends RSSFeed {
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protected $filename;
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public function __construct($filename) {
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parent::__construct();
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$this->filename = $filename;
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$this->load();
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}
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public function load() {
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if ( file_exists( $this->filename )) {
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$this->xml = simplexml_load_file($this->filename);
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}
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}
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public function create($title, $link, $description, $rsslink) {
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parent::setHeaders($title, $link, $description, $rsslink);
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$this->write();
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}
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public function addItem($title, $link, $description, $author, $guid, $timestamp) {
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parent::addItem($title, $link, $description, $author, $guid, $timestamp);
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$this->write();
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}
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private function write() {
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if ( file_exists( $this->filename )) {
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unlink($this->filename);
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}
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$outputXML = new RSSFeed();
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foreach($this->xml->channel->item as $f) {
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$item = $outputXML->addItem($f->title,$f->link,$f->description,$f->author,$f->guid, strtotime($f->pubDate));
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}
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$merger = new RssMerger();
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$merger->add($outputXML->getXML());
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$merger->sort();
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unset($this->xml->channel->item);
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foreach($merger->getFeeds(20) as $f) {
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parent::addItem($f->title,$f->link,$f->description,$f->author,$f->guid,$f->time);
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}
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file_put_contents( $this->filename, $this->xml->asXML() );
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}
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}
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class AutoblogRSS extends FileRSSFeed {
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public function __construct($filename) {
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parent::__construct($filename);
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}
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public function addUnavailable($title, $folder, $siteurl, $rssurl) {
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$path = pathinfo( $_SERVER['PHP_SELF'] );
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$autobHref = 'http'.(!empty($_SERVER['HTTPS'])?'s':'').'://'.
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$_SERVER["SERVER_NAME"].$_SERVER["SERVER_PORT"]. $path['dirname'].'/'.$folder;
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parent::addItem( 'L\'autoblog "'. $title.'" est indisponible', $autobHref,
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'Autoblog: <a href="'. $autobHref .'">'.$title.'</a><br>
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Site: <a href="'. $siteurl .'">'. $siteurl .'</a><br>
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RSS: <a href="'.$rssurl.'">'.$rssurl.'</a><br>
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Folder: '. $folder ,
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'admin@'.$_SERVER['SERVER_NAME'],
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$autobHref,
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time()
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);
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}
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public function addAvailable($title, $folder, $siteurl, $rssurl) {
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$path = pathinfo( $_SERVER['PHP_SELF'] );
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$autobHref = 'http'.(!empty($_SERVER['HTTPS'])?'s':'').'://'.
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$_SERVER["SERVER_NAME"].$_SERVER["SERVER_PORT"]. $path['dirname'].'/'.$folder;
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parent::addItem( 'L\'autoblog "'. $title.'" est de nouveau disponible', $autobHref,
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'Autoblog : <a href="'. $autobHref .'">'.$title.'</a><br>
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Site: <a href="'. $siteurl .'">'. $siteurl .'</a><br>
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RSS: <a href="'.$rssurl.'">'.$rssurl.'</a><br>
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Folder: '. $folder ,
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'admin@'.$_SERVER['SERVER_NAME'],
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$autobHref,
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time()
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);
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}
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public function addCodeChanged($title, $folder, $siteurl, $rssurl, $code) {
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$path = pathinfo( $_SERVER['PHP_SELF'] );
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$autobHref = 'http'.(!empty($_SERVER['HTTPS'])?'s':'').'://'.
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$_SERVER["SERVER_NAME"].$_SERVER["SERVER_PORT"]. $path['dirname'].'/'.$folder;
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parent::addItem( 'L\'autoblog "'. $title.'" a renvoyé un code imprévu', $autobHref,
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'Code: '. $code .'<br>
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Autoblog : <a href="'. $autobHref .'">'.$title.'</a><br>
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Site: <a href="'. $siteurl .'">'. $siteurl .'</a><br>
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RSS: <a href="'.$rssurl.'">'.$rssurl.'</a><br>
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Folder: '. $folder ,
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'admin@'.$_SERVER['SERVER_NAME'],
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$autobHref,
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time()
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);
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}
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public function addNewAutoblog($title, $folder, $siteurl, $rssurl) {
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$path = pathinfo( $_SERVER['PHP_SELF'] );
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$autobHref = 'http'.(!empty($_SERVER['HTTPS'])?'s':'').'://'.
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$_SERVER["SERVER_NAME"].$_SERVER["SERVER_PORT"]. $path['dirname'].'/'.$folder;
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parent::addItem( 'L\'autoblog "'. $title.'" a été ajouté à la ferme', $autobHref,
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'Autoblog : <a href="'. $autobHref .'">'.$title.'</a><br>
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Site: <a href="'. $siteurl .'">'. $siteurl .'</a><br>
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RSS: <a href="'.$rssurl.'">'.$rssurl.'</a><br>
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Folder: '. $folder ,
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'admin@'.$_SERVER['SERVER_NAME'],
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$autobHref,
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time()
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);
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}
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}
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?>
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