module.textsanitizer.php

讲的是网络编程

	function &displayTarea( $text, $html = 0, $smiley = 1, $xcode = 1, $image = 1, $br = 1)
	{
		if ($html != 1) {
			// html not allowed
			$text = $this->htmlSpecialChars($text);
		}
		$text = $this->codePreConv($text, $xcode); // Ryuji_edit(2003-11-18)
		$text = $this->makeClickable($text);
		if ($smiley != 0) {
			// process smiley
			$text = $this->smiley($text);
		}
		if ($xcode != 0) {
			// decode xcode
			if ($image != 0) {
				// image allowed
				$text = $this->xoopsCodeDecode($text);
			} else {
				// image not allowed
				$text = $this->xoopsCodeDecode($text, 0);
			}
		}
		if ($br != 0) {
			$text = $this->nl2Br($text);
		}
		$text = $this->codeConv($text, $xcode, $image);	// Ryuji_edit(2003-11-18)
		return $text;
	}

	/**
	 * Filters textarea form data submitted for preview
	 *
	 * @param   string  $text
	 * @param   bool    $html   allow html?
	 * @param   bool    $smiley allow smileys?
	 * @param   bool    $xcode  allow xoopscode?
	 * @param   bool    $image  allow inline images?
	 * @param   bool    $br     convert linebreaks?
	 * @return  string
	 **/
	function &previewTarea( $text, $html = 0, $smiley = 1, $xcode = 1, $image = 1, $br = 1)
	{
		$text = $this->stripSlashesGPC($text);
		if ($html != 1) {
			// html not allowed
			$text = $this->htmlSpecialChars($text);
		}
		$text = $this->codePreConv($text, $xcode); // Ryuji_edit(2003-11-18)
		$text = $this->makeClickable($text);
		if ($smiley != 0) {
			// process smiley
			$text = $this->smiley($text);
		}
		if ($xcode != 0) {
			// decode xcode
			if ($image != 0) {
				// image allowed
				$text = $this->xoopsCodeDecode($text);
			} else {
				// image not allowed
				$text = $this->xoopsCodeDecode($text, 0);
			}
		}
		if ($br != 0) {
			$text = $this->nl2Br($text);
		}
		$text = $this->codeConv($text, $xcode, $image);	// Ryuji_edit(2003-11-18)
		return $text;
	}

	/**
	 * Replaces banned words in a string with their replacements
	 *
	 * @param   string $text
	 * @return  string
     *
     * @deprecated
	 **/
	function &censorString(&$text)
	{
		if (!isset($this->censorConf)) {
			$config_handler =& xoops_gethandler('config');
			$this->censorConf =& $config_handler->getConfigsByCat(XOOPS_CONF_CENSOR);
		}
		if ($this->censorConf['censor_enable'] == 1) {
			$replacement = $this->censorConf['censor_replace'];
			foreach ($this->censorConf['censor_words'] as $bad) {
				if ( !empty($bad) ) {
	 				$bad = quotemeta($bad);
					$patterns[] = "/(\s)".$bad."/siU";
					$replacements[] = "\\1".$replacement;
					$patterns[] = "/^".$bad."/siU";
					$replacements[] = $replacement;
					$patterns[] = "/(\n)".$bad."/siU";
					$replacements[] = "\\1".$replacement;
					$patterns[] = "/]".$bad."/siU";
					$replacements[] = "]".$replacement;
					$text = preg_replace($patterns, $replacements, $text);
				}
   			}
		}
   		return $text;
	}


	/**#@+
	 * Sanitizing of [code] tag
	 */
	function codePreConv($text, $xcode = 1) {
		if($xcode != 0){
			$patterns = "/\[code](.*)\[\/code\]/esU";
			$replacements = "'[code]'.base64_encode('$1').'[/code]'";
			$text =  preg_replace($patterns, $replacements, $text);
		}
		return $text;
	}

	function codeConv($text, $xcode = 1, $image = 1){
		if($xcode != 0){
			$patterns = "/\[code](.*)\[\/code\]/esU";
			if ($image != 0) {
				// image allowed
				$replacements = "'<div class=\"xoopsCode\"><code><pre>'.MyTextSanitizer::codeSanitizer('$1').'</pre></code></div>'";
				//$text =& $this->xoopsCodeDecode($text);
			} else {
				// image not allowed
				$replacements = "'<div class=\"xoopsCode\"><code><pre>'.MyTextSanitizer::codeSanitizer('$1', 0).'</pre></code></div>'";
				//$text =& $this->xoopsCodeDecode($text, 0);
			}
			$text =  preg_replace($patterns, $replacements, $text);
		}
		return $text;
	}

	function codeSanitizer($str, $image = 1){
		if($image != 0){
			$str = $this->xoopsCodeDecode(
				$this->htmlSpecialChars(str_replace('\"', '"', base64_decode($str)))
				);
		}else{
			$str = $this->xoopsCodeDecode(
				$this->htmlSpecialChars(str_replace('\"', '"', base64_decode($str))),0
				);
		}
		return $str;
	}


	/**#@-*/


##################### Deprecated Methods ######################

	/**#@+
	 * @deprecated
	 */
	function sanitizeForDisplay($text, $allowhtml = 0, $smiley = 1, $bbcode = 1)
	{
		if ( $allowhtml == 0 ) {
			$text = $this->htmlSpecialChars($text);
		} else {
			//$config =& $GLOBALS['xoopsConfig'];
			//$allowed = $config['allowed_html'];
			//$text = strip_tags($text, $allowed);
			$text = $this->makeClickable($text);
		}
		if ( $smiley == 1 ) {
			$text = $this->smiley($text);
		}
		if ( $bbcode == 1 ) {
			$text = $this->xoopsCodeDecode($text);
		}
		$text = $this->nl2Br($text);
		return $text;
	}

	function sanitizeForPreview($text, $allowhtml = 0, $smiley = 1, $bbcode = 1)
	{
		$text = $this->oopsStripSlashesGPC($text);
		if ( $allowhtml == 0 ) {
			$text = $this->htmlSpecialChars($text);
		} else {
			//$config =& $GLOBALS['xoopsConfig'];
			//$allowed = $config['allowed_html'];
			//$text = strip_tags($text, $allowed);
			$text = $this->makeClickable($text);
		}
		if ( $smiley == 1 ) {
			$text = $this->smiley($text);
		}
		if ( $bbcode == 1 ) {
			$text = $this->xoopsCodeDecode($text);
		}
		$text = $this->nl2Br($text);
		return $text;
	}

	function makeTboxData4Save($text)
	{
		//$text = $this->undoHtmlSpecialChars($text);
		return $this->addSlashes($text);
	}

	function makeTboxData4Show($text, $smiley=0)
	{
		$text = $this->htmlSpecialChars($text);
		return $text;
	}

	function makeTboxData4Edit($text)
	{
		return $this->htmlSpecialChars($text);
	}

	function makeTboxData4Preview($text, $smiley=0)
	{
		$text = $this->stripSlashesGPC($text);
		$text = $this->htmlSpecialChars($text);
		return $text;
	}

	function makeTboxData4PreviewInForm($text)
	{
		$text = $this->stripSlashesGPC($text);
		return $this->htmlSpecialChars($text);
	}

	function makeTareaData4Save($text)
	{
		return $this->addSlashes($text);
	}

	function &makeTareaData4Show(&$text, $html=1, $smiley=1, $xcode=1)
	{
		$text = $this->displayTarea($text, $html, $smiley, $xcode);
		return $text;
	}

	function makeTareaData4Edit($text)
	{
		return $this->htmlSpecialChars($text);
	}

	function &makeTareaData4Preview(&$text, $html=1, $smiley=1, $xcode=1)
	{
		$text = $this->previewTarea($text, $html, $smiley, $xcode);
		return $text;
	}

	function makeTareaData4PreviewInForm($text)
	{
		//if magic_quotes_gpc is on, do stipslashes
		$text = $this->stripSlashesGPC($text);
		return $this->htmlSpecialChars($text);
	}

	function makeTareaData4InsideQuotes($text)
	{
		return $this->htmlSpecialChars($text);
	}

	function oopsStripSlashesGPC($text)
	{
		return $this->stripSlashesGPC($text);
	}

	function oopsStripSlashesRT($text)
	{
		if (get_magic_quotes_runtime()) {
			$text = stripslashes($text);
		}
		return $text;
	}

	function oopsAddSlashes($text)
	{
		return $this->addSlashes($text);
	}

	function oopsHtmlSpecialChars($text)
	{
		return $this->htmlSpecialChars($text);
	}

	function oopsNl2Br($text)
	{
		return $this->nl2br($text);
	}
    /**#@-*/
}
?>