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<?php
require_once(__DIR__ . '/FormatInterface.php');
abstract class FormatAbstract implements FormatInterface{
const DEFAULT_CHARSET = 'UTF-8';
protected
$contentType,
$charset,
$items,
$extraInfos
;
public function setCharset($charset){
$this->charset = $charset;
return $this;
}
public function getCharset(){
$charset = $this->charset;
return is_null($charset) ? self::DEFAULT_CHARSET : $charset;
}
protected function setContentType($contentType){
$this->contentType = $contentType;
return $this;
}
protected function callContentType(){
header('Content-Type: ' . $this->contentType);
}
public function display(){
echo $this->stringify();
return $this;
}
public function setItems(array $items){
$this->items = array_map(array($this, 'array_trim'), $items);
return $this;
}
public function getItems(){
if(!is_array($this->items))
throw new \LogicException('Feed the ' . get_class($this) . ' with "setItems" method before !');
return $this->items;
}
/**
* Define common informations can be required by formats and set default value for unknow values
* @param array $extraInfos array with know informations (there isn't merge !!!)
* @return this
*/
public function setExtraInfos(array $extraInfos = array()){
foreach(array('name', 'uri') as $infoName){
if( !isset($extraInfos[$infoName]) ){
$extraInfos[$infoName] = '';
}
}
$this->extraInfos = $extraInfos;
return $this;
}
/**
* Return extra infos
* @return array See "setExtraInfos" detail method to know what extra are disponibles
*/
public function getExtraInfos(){
if( is_null($this->extraInfos) ){ // No extra info ?
$this->setExtraInfos(); // Define with default value
}
return $this->extraInfos;
}
/**
* Sanitized html while leaving it functionnal.
* The aim is to keep html as-is (with clickable hyperlinks)
* while reducing annoying and potentially dangerous things.
* Yes, I know sanitizing HTML 100% is an impossible task.
* Maybe we'll switch to http://htmlpurifier.org/
* or http://www.bioinformatics.org/phplabware/internal_utilities/htmLawed/index.php
*/
protected function sanitizeHtml($html)
{
$html = str_replace('<script','<‌script',$html); // Disable scripts, but leave them visible.
$html = str_replace('<iframe','<‌iframe',$html);
$html = str_replace('<link','<‌link',$html);
// We leave alone object and embed so that videos can play in RSS readers.
return $html;
}
protected function array_trim($elements){
foreach($elements as $key => $value){
if(is_string($value))
$elements[$key] = trim($value);
}
return $elements;
}
}
|
