mirror of
https://github.com/Chouchen/ShikiryuRSS.git
synced 2024-11-22 07:48:51 +01:00
726 lines
16 KiB
PHP
726 lines
16 KiB
PHP
<?php
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/**
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TODO textinput a 4 sous enfant
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TODO language
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TODO CDATA ?
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*/
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class SRSS extends DomDocument implements Iterator
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{
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protected $xpath; // xpath engine
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protected $items; // array of SRSSItems
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protected $attr; // array of RSS attributes
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private $position; // Iterator position
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// lists of possible attributes for RSS
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protected $possibleAttr = array(
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'title' => 'nohtml',
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'link' => 'link',
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'description' => 'html',
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'language' => '',
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//'language' => 'lang',
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'copyright' => 'nohtml',
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'pubDate' => 'date',
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'lastBuildDate' => 'date',
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'category' => 'nohtml',
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'docs' => 'link',
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'cloud' => '',
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'generator' => 'nohtml',
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'managingEditor' => 'email',
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'webMaster' => 'email',
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'ttl' => 'int',
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'image' => '',
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'rating' => 'nohtml',
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//'textInput' => '',
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'skipHours' => 'hour',
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'skipDays' => 'day',
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);
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/**
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* Constructor
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*/
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public function __construct()
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{
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libxml_use_internal_errors(true);
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parent::__construct();
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$this->xpath = new DOMXpath($this);
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$this->attr = array();
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$this->items = array();
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$this->position = 0;
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$this->formatOutput = true;
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}
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/**
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* Destructor
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* manage of libxml errors
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*/
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public function __destruct()
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{
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foreach (libxml_get_errors() as $error) {
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error_log($error->message, 3, 'error.log');
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}
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libxml_clear_errors();
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}
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/**
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* @param $link url of the rss
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* @return SRSS
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*/
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public static function read($link)
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{
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$doc = new SRSS;
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if(@$doc->load($link)) // We don't want the warning in case of bad XML. Let's manage it.
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{
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$channel = $doc->getElementsByTagName('channel');
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if($channel->length == 1){ // Good URL and good RSS
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$doc->_loadAttributes(); // loading channel properties
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$doc->getItems(); // loading all items
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return $doc;
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}
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else
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{
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throw new SRSSException('invalid file '.$link);
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}
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}
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else
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{
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throw new SRSSException('Can not open file '.$link);
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}
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}
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/**
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* @return SRSS
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*/
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public static function create()
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{
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$doc = new SRSS;
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$root = $doc->createElement('rss');
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$root->setAttribute('version', '2.0');
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$channel = $doc->createElement('channel');
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$root->appendChild($channel);
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$doc->appendChild($root);
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$doc->encoding = "UTF-8";
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$doc->generator = 'Shikiryu RSS';
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$docs = 'http://www.scriptol.fr/rss/RSS-2.0.html';
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return $doc;
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}
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/**
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* setter of "image"'s channel attributes
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* @param $url picture's url
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* @param $title picture's title
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* @param $link link on the picture
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* @param $width width
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* @param $height height
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* @param $description description
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*/
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public function setImage($url, $title, $link, $width = 0, $height = 0, $description = '')
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{
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$channel = $this->_getChannel();
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$array = array();
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$url = SRSSTools::checkLink($url);
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$array['url'] = $url;
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$title = SRSSTools::noHTML($title);
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$array['title'] = $title;
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$link = SRSSTools::checkLink($link);
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$array['link'] = $link;
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if($width != 0)
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{
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$width = SRSSTools::checkInt($width);
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$array['width'] = $width;
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}
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if($height != 0)
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{
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$height = SRSSTools::checkInt($height);
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$array['height'] = $height;
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}
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if($description != 0)
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{
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$description = SRSSTools::noHTML($description);
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$array['description'] = $description;
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}
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if($this->image == null)
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{
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$node = $this->createElement('image');
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$urlNode = $this->createElement('url', $url);
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$titleNode = $this->createElement('title', $title);
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$linkNode = $this->createElement('link', $link);
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$node->appendChild($urlNode);
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$node->appendChild($titleNode);
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$node->appendChild($linkNode);
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if($width != 0)
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{
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$widthNode = $this->createElement('width', $width);
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$node->appendChild($widthNode);
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}
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if($height != 0)
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{
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$heightNode = $this->createElement('height', $height);
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$node->appendChild($heightNode);
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}
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if($description != '')
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{
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$descNode = $this->createElement('description', $description);
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$node->appendChild($descNode);
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}
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$channel->appendChild($node);
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}
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$this->attr['image'] = $array;
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}
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/**
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* setter of "cloud"'s channel attributes
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* @param $domain domain
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* @param $port port
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* @param $path path
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* @param $registerProcedure register procedure
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* @param $protocol protocol
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*/
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public function setCloud($domain, $port, $path, $registerProcedure, $protocol)
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{
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$channel = $this->_getChannel();
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$array = array();
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$domain = SRSSTools::noHTML($domain);
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$array['domain'] = $domain;
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$port = SRSSTools::checkInt($port);
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$array['port'] = $port;
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$path = SRSSTools::noHTML($path);
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$array['path'] = $path;
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$registerProcedure = SRSSTools::noHTML($registerProcedure);
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$array['registerProcedure'] = $registerProcedure;
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$protocol = SRSSTools::noHTML($protocol);
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$array['protocol'] = $protocol;
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if($this->cloud == null)
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{
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$node = $this->createElement('cloud');
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$node->setAttribute('domain', $domain);
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$node->setAttribute('port', $port);
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$node->setAttribute('path', $path);
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$node->setAttribute('registerProcedure', $registerProcedure);
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$node->setAttribute('protocol', $protocol);
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$channel->appendChild($node);
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}
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$this->attr['cloud'] = $array;
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}
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/**
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* check if current RSS is a valid one (based on specifications)
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* @return bool
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*/
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public function isValid()
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{
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$valid = true;
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$items = $this->getItems();
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$invalidItems = array();
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$i = 1;
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foreach($items as $item){
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if($item->isValid() === false){
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$invalidItems[] = $i;
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$valid = false;
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}
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$i++;
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}
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return ($valid && $this->title != null && $this->link != null && $this->description != null);
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}
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/**
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* getter of current RSS channel
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*/
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private function _getChannel()
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{
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$channel = $this->getElementsByTagName('channel');
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if($channel->length != 1) throw new SRSSException('channel node not created, or too many channel nodes');
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return $channel->item(0);
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}
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/**
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* setter of others attributes
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*/
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public function __set($name, $val)
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{
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$channel = $this->_getChannel();
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if(array_key_exists($name, $this->possibleAttr)){
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$flag = $this->possibleAttr[$name];
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$val = SRSSTools::check($val, $flag);
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if(!empty($val)){
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if($this->$name == null){
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$node = $this->createElement($name, $val);
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$channel->appendChild($node);
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}
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$this->attr[$name] = $val;
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}
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}else{
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throw new SRSSException($name.' is not a possible item');
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}
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}
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/**
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* getter of others attributes
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*/
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public function __get($name)
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{
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if(isset($this->attr[$name]))
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return $this->attr[$name];
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$channel = $this->_getChannel();
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if(array_key_exists($name, $this->possibleAttr)){
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$tmp = $this->xpath->query('//channel/'.$name);
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if($tmp->length != 1) return;
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return $tmp->item(0)->nodeValue;
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}else{
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throw new SRSSException($name.' is not a possible value.');
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}
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}
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/**
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* add a SRSS Item as an item into current RSS
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* @param SRSSItem $item
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*/
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public function addItem(SRSSItem $item)
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{
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$node = $this->importNode($item->getItem(), true);
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$channel = $this->_getChannel();
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$channel->appendChild($node);
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}
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/**
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* rewind from Iterator
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*/
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public function rewind() {
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$this->position = 0;
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}
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/**
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* current from Iterator
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*/
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public function current() {
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return $this->items[$this->position];
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}
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/**
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* key from Iterator
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*/
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public function key() {
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return $this->position;
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}
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/**
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* next from Iterator
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*/
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public function next() {
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++$this->position;
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}
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/**
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* valid from Iterator
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*/
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public function valid() {
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return isset($this->items[$this->position]);
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}
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/**
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* getter of 1st item
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* @return SRSSItem
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*/
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public function getFirst()
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{
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return $this->getItem(1);
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}
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/**
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* getter of last item
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* @return SRSSItem
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*/
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public function getLast()
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{
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$items = $this->getItems();
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return $items[count($items)-1];
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}
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/**
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* getter of an item
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* @param $i int
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* @return SRSSItem
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*/
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public function getItem($i)
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{
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$i--;
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return isset($this->items[$i]) ? $this->items[$i] : null;
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}
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/**
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* getter of all items
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* @return array of SRSSItem
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*/
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public function getItems()
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{
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$channel = $this->_getChannel();
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$item = $channel->getElementsByTagName('item');
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$length = $item->length;
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$items = array();
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if($length > 0){
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for($i = 0; $i < $length; $i++)
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{
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$this->items[$i] = new SRSSItem($item->item($i));
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}
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}
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return $this->items;
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}
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/**
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* display XML
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* see DomDocument's docs
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*/
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public function show()
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{
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return $this->saveXml();
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}
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/**
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* putting all RSS attributes into the object
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*/
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private function _loadAttributes()
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{
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$channel = $this->_getChannel();
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foreach($channel->childNodes as $child)
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{
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if($child->nodeType == XML_ELEMENT_NODE && $child->nodeName != 'item')
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{
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$this->{$child->nodeName} = $child->nodeValue;
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}
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}
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}
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/**
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* transform current object into an array
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* @return array
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*/
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public function toArray()
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{
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$doc = array();
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foreach($this->attr as $attrName => $attrVal)
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{
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$doc[$attrName] = $attrVal;
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}
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foreach($this->getItems() as $item)
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{
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$doc['items'][] = $item->toArray();
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}
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return $doc;
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}
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}
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class SRSSItem extends DomDocument
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{
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protected $node; // item node
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protected $attr; // item's properties
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// possible properties' names
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protected $possibilities = array(
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'title' => 'nohtml',
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'link' => 'link',
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'description' => 'html',
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'author' => 'email',
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'category' => 'nohtml',
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'comments' => 'link',
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'enclosure' => '',
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'guid' => 'nohtml',
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'pubDate' => 'date',
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'source' => 'link',
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);
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/**
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* Constructor
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* @param DomElement $node
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*/
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public function __construct($node = null)
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{
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parent::__construct();
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if($node instanceof DOMElement) $this->node = $this->importNode($node, true);
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else $this->node = $this->importNode(new DomElement('item'));
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$this->_loadAttributes();
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}
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/**
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* putting all item attributes into the object
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*/
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private function _loadAttributes()
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{
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foreach($this->node->childNodes as $child)
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{
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if($child->nodeType == XML_ELEMENT_NODE && $child->nodeName != 'item')
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{
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$this->{$child->nodeName} = $child->nodeValue;
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}
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}
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}
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/**
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* getter of item DomElement
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*/
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public function getItem()
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{
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$this->appendChild($this->node);
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return $this->getElementsByTagName('item')->item(0);
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}
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/**
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* setter for enclosure's properties
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* @param $url string url
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* @param $length int length
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* @param $type string type
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*/
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public function setEnclosure($url, $length, $type)
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{
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$array = array();
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$url = SRSSTools::checkLink($url);
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$array['url'] = $url;
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$length = SRSSTools::checkInt($length);
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$array['length'] = $length;
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$type = SRSSTools::noHTML($type);
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$array['type'] = $type;
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if($this->enclosure == null)
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{
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$node = $this->createElement('enclosure');
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$node->setAttribute('url', $url);
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$node->setAttribute('length', $length);
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$node->setAttribute('type', $type);
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$this->node->appendChild($node);
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}
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$this->attr['enclosure'] = $array;
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}
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/**
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* check if current item is valid (following specifications)
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* @return bool
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*/
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public function isValid()
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{
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return $this->description != null ? true : false;
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}
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/**
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* main setter for properties
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*/
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public function __set($name, $val)
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{
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if(array_key_exists($name, $this->possibilities))
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{
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$flag = $this->possibilities[$name];
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if($flag != '')
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$val = SRSSTools::check($val, $flag);
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if(!empty($val)){
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if($this->$name == null){
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$this->node->appendChild(new DomElement($name, $val));
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}
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$this->attr[$name] = $val;
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}
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}
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else
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{
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throw New SRSSException($name.' is not a possible item : '.print_r($this->possibilities));
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}
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}
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/**
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* main getter for properties
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*/
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public function __get($name)
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{
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if(isset($this->attr[$name]))
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return $this->attr[$name];
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if(array_key_exists($name, $this->possibilities))
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{
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$tmp = $this->node->getElementsByTagName($name);
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if($tmp->length != 1) return;
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return $tmp->item(0)->nodeValue;
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}
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else
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{
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throw New SRSSException($name.' is not a possible item : '.print_r($this->possibilities));
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}
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}
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/**
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* display item's XML
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* see DomDocument's docs
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*/
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public function show()
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{
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return $this->saveXml();
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}
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/**
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* transform current item's object into an array
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* @return array
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*/
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public function toArray()
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{
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$infos = array();
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foreach($this->attr as $attrName => $attrVal)
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{
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$infos[$attrName] = $attrVal;
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}
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return $infos;
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}
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}
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class SRSSException extends Exception
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{
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public function __construct($msg)
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{
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parent :: __construct($msg);
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}
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public function getError()
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{
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$return = 'Une exception a été générée : <strong>Message : ' . $this->getMessage() . '</strong> à la ligne : ' . $this->getLine();
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return $return;
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}
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}
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class SRSSTools
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{
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public static function check($check, $flag)
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{
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switch($flag){
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case 'nohtml':
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return self::noHTML($check);
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break;
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case 'link':
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return self::checkLink($check);
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break;
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case 'html':
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return self::HTML4XML($check);
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break;
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/*case 'lang':
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return self::noHTML($check);
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|
break;*/
|
|
case 'date':
|
|
return self::getRSSDate($check);
|
|
break;
|
|
case 'email':
|
|
return self::checkEmail($check);
|
|
break;
|
|
case 'int':
|
|
return self::checkInt($check);
|
|
break;
|
|
case 'hour':
|
|
return self::checkHour($check);
|
|
break;
|
|
case 'day':
|
|
return self::checkDay($check);
|
|
break;
|
|
case '':
|
|
return $check;
|
|
break;
|
|
default:
|
|
throw new SRSSEXception('flag '.$flag.' does not exist.');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* format the RSS to the wanted format
|
|
* @param $format string wanted format
|
|
* @param $date string RSS date
|
|
* @return date
|
|
*/
|
|
public static function formatDate($format, $date)
|
|
{
|
|
return date($format, strtotime($date));
|
|
}
|
|
|
|
/**
|
|
* format a date for RSS format
|
|
* @param $date string date to format
|
|
*/
|
|
public static function getRSSDate($date)
|
|
{
|
|
if(strtotime($date) !==false)
|
|
return date("D, d M Y H:i:s T", strtotime($date));
|
|
else
|
|
{
|
|
list($j, $m, $a) = explode('/', $date);
|
|
return date("D, d M Y H:i:s T", strtotime($a.'-'.$m.'-'.$j));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* check if it's an url
|
|
* @param $check string to check
|
|
* @return the filtered data, or FALSE if the filter fails.
|
|
*/
|
|
public static function checkLink($check)
|
|
{
|
|
return filter_var($check, FILTER_VALIDATE_URL);
|
|
}
|
|
|
|
/**
|
|
* make a string XML-compatible
|
|
* @param $check string to format
|
|
* @return formated string
|
|
* TODO CDATA ?
|
|
*/
|
|
public static function HTML4XML($check)
|
|
{
|
|
return htmlspecialchars($check);
|
|
}
|
|
|
|
/**
|
|
* delete html tags
|
|
* @param $check string to format
|
|
* @return formated string
|
|
*/
|
|
public static function noHTML($check)
|
|
{
|
|
return strip_tags($check);
|
|
}
|
|
|
|
/**
|
|
* check if it's a day (in RSS terms)
|
|
* @param $check string to check
|
|
* @return theday, or empty string
|
|
*/
|
|
public static function checkDay($check)
|
|
{
|
|
$possibleDay = array('monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday', 'sunday');
|
|
return in_array(strtolower($check), $possibleDay) ? $check : '';
|
|
}
|
|
|
|
/**
|
|
* check if it's an email
|
|
* @param $check string to check
|
|
* @return the filtered data, or FALSE if the filter fails.
|
|
*/
|
|
public static function checkEmail($check)
|
|
{
|
|
return filter_var($check, FILTER_VALIDATE_EMAIL);
|
|
}
|
|
|
|
/**
|
|
* check if it's an hour (in RSS terms)
|
|
* @param $check string to check
|
|
* @return the filtered data, or FALSE if the filter fails.
|
|
*/
|
|
public static function checkHour($check)
|
|
{
|
|
$options = array(
|
|
'options' => array(
|
|
'default' => 0,
|
|
'min_range' => 0,
|
|
'max_range' => 23
|
|
)
|
|
);
|
|
return filter_var($check, FILTER_VALIDATE_INT, $options);
|
|
}
|
|
|
|
/**
|
|
* check if it's an int
|
|
* @param $check int to check
|
|
* @return the filtered data, or FALSE if the filter fails.
|
|
*/
|
|
public static function checkInt($check)
|
|
{
|
|
return filter_var($check, FILTER_VALIDATE_INT);
|
|
}
|
|
} |