diff options
Diffstat (limited to 'framework/IO')
| -rw-r--r-- | framework/IO/SafeHtml/HTMLSax3.php | 695 | ||||
| -rw-r--r-- | framework/IO/SafeHtml/HTMLSax3/Decorators.php | 363 | ||||
| -rw-r--r-- | framework/IO/SafeHtml/HTMLSax3/States.php | 288 | ||||
| -rw-r--r-- | framework/IO/SafeHtml/license.txt | 26 | ||||
| -rw-r--r-- | framework/IO/SafeHtml/readme.txt | 81 | ||||
| -rw-r--r-- | framework/IO/TSafeHtml.php | 670 |
6 files changed, 0 insertions, 2123 deletions
diff --git a/framework/IO/SafeHtml/HTMLSax3.php b/framework/IO/SafeHtml/HTMLSax3.php deleted file mode 100644 index 35e50f55..00000000 --- a/framework/IO/SafeHtml/HTMLSax3.php +++ /dev/null @@ -1,695 +0,0 @@ -<?php
-/* vim: set expandtab tabstop=4 shiftwidth=4: */
-//
-// +----------------------------------------------------------------------+
-// | PHP Version 4 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1997-2002 The PHP Group |
-// +----------------------------------------------------------------------+
-// | This source file is subject to version 2.02 of the PHP license, |
-// | that is bundled with this package in the file LICENSE, and is |
-// | available at through the world-wide-web at |
-// | http://www.php.net/license/3_0.txt. |
-// | If you did not receive a copy of the PHP license and are unable to |
-// | obtain it through the world-wide-web, please send a note to |
-// | license@php.net so we can mail you a copy immediately. |
-// +----------------------------------------------------------------------+
-// | Authors: Alexander Zhukov <alex@veresk.ru> Original port from Python |
-// | Authors: Harry Fuecks <hfuecks@phppatterns.com> Port to PEAR + more |
-// | Authors: Many @ Sitepointforums Advanced PHP Forums |
-// +----------------------------------------------------------------------+
-//
-// $Id: HTMLSax3.php,v 1.2 2005/12/22 11:09:09 weizhuo Exp $
-//
-/**
-* Main parser components
-* @package System.Security.SafeHtml
-* @version $Id: HTMLSax3.php,v 1.2 2005/12/22 11:09:09 weizhuo Exp $
-*/
-/**
-* Required classes
-*/
-
-require_once(dirname(__FILE__).'/HTMLSax3/States.php');
-require_once(dirname(__FILE__).'/HTMLSax3/Decorators.php');
-
-/**
-* Base State Parser
-* @package System.Security.SafeHtml
-* @access protected
-* @abstract
-*/
-class TSax3_StateParser {
- /**
- * Instance of user front end class to be passed to callbacks
- * @var TSax3
- * @access private
- */
- public $htmlsax;
- /**
- * User defined object for handling elements
- * @var object
- * @access private
- */
- public $handler_object_element;
- /**
- * User defined open tag handler method
- * @var string
- * @access private
- */
- public $handler_method_opening;
- /**
- * User defined close tag handler method
- * @var string
- * @access private
- */
- public $handler_method_closing;
- /**
- * User defined object for handling data in elements
- * @var object
- * @access private
- */
- public $handler_object_data;
- /**
- * User defined data handler method
- * @var string
- * @access private
- */
- public $handler_method_data;
- /**
- * User defined object for handling processing instructions
- * @var object
- * @access private
- */
- public $handler_object_pi;
- /**
- * User defined processing instruction handler method
- * @var string
- * @access private
- */
- public $handler_method_pi;
- /**
- * User defined object for handling JSP/ASP tags
- * @var object
- * @access private
- */
- public $handler_object_jasp;
- /**
- * User defined JSP/ASP handler method
- * @var string
- * @access private
- */
- public $handler_method_jasp;
- /**
- * User defined object for handling XML escapes
- * @var object
- * @access private
- */
- public $handler_object_escape;
- /**
- * User defined XML escape handler method
- * @var string
- * @access private
- */
- public $handler_method_escape;
- /**
- * User defined handler object or NullHandler
- * @var object
- * @access private
- */
- public $handler_default;
- /**
- * Parser options determining parsing behavior
- * @var array
- * @access private
- */
- protected $parser_options = array();
- /**
- * XML document being parsed
- * @var string
- * @access private
- */
- protected $rawtext;
- /**
- * Position in XML document relative to start (0)
- * @var int
- * @access private
- */
- protected $position;
- /**
- * Length of the XML document in characters
- * @var int
- * @access private
- */
- protected $length;
- /**
- * Array of state objects
- * @var array
- * @access private
- */
- protected $State = array();
-
- const TSAX3_STATE_STOP = 0;
- const TSAX3_STATE_START = 1;
- const TSAX3_STATE_TAG = 2;
- const TSAX3_STATE_OPENING_TAG = 3;
- const TSAX3_STATE_CLOSING_TAG = 4;
- const TSAX3_STATE_ESCAPE = 6;
- const TSAX3_STATE_JASP = 7;
- const TSAX3_STATE_PI = 8;
-
- /**
- * Constructs TSax3_StateParser setting up states
- * @var TSax3 instance of user front end class
- * @access protected
- */
- protected function __construct($htmlsax) {
- $this->htmlsax = $htmlsax;
- $this->State[self::TSAX3_STATE_START] = new TSax3_StartingState();
-
- $this->State[self::TSAX3_STATE_CLOSING_TAG] = new TSax3_ClosingTagState();
- $this->State[self::TSAX3_STATE_TAG] = new TSax3_TagState();
- $this->State[self::TSAX3_STATE_OPENING_TAG] = new TSax3_OpeningTagState();
-
- $this->State[self::TSAX3_STATE_PI] = new TSax3_PiState();
- $this->State[self::TSAX3_STATE_JASP] = new TSax3_JaspState();
- $this->State[self::TSAX3_STATE_ESCAPE] = new TSax3_EscapeState();
- }
-
- /**
- * Moves the position back one character
- * @access protected
- * @return void
- */
- function unscanCharacter() {
- $this->position -= 1;
- }
-
- /**
- * Moves the position forward one character
- * @access protected
- * @return void
- */
- function ignoreCharacter() {
- $this->position += 1;
- }
-
- /**
- * Returns the next character from the XML document or void if at end
- * @access protected
- * @return mixed
- */
- function scanCharacter() {
- if ($this->position < $this->length) {
- return $this->rawtext{$this->position++};
- }
- }
-
- /**
- * Returns a string from the current position to the next occurance
- * of the supplied string
- * @param string string to search until
- * @access protected
- * @return string
- */
- function scanUntilString($string) {
- $start = $this->position;
- $this->position = strpos($this->rawtext, $string, $start);
- if ($this->position === FALSE) {
- $this->position = $this->length;
- }
- return substr($this->rawtext, $start, $this->position - $start);
- }
-
- /**
- * Returns a string from the current position until the first instance of
- * one of the characters in the supplied string argument
- * @param string string to search until
- * @access protected
- * @return string
- * @abstract
- */
- function scanUntilCharacters($string) {}
-
- /**
- * Moves the position forward past any whitespace characters
- * @access protected
- * @return void
- * @abstract
- */
- function ignoreWhitespace() {}
-
- /**
- * Begins the parsing operation, setting up any decorators, depending on
- * parse options invoking _parse() to execute parsing
- * @param string XML document to parse
- * @access protected
- * @return void
- */
- function parse($data) {
- if ($this->parser_options['XML_OPTION_TRIM_DATA_NODES']==1) {
- $decorator = new TSax3_Trim(
- $this->handler_object_data,
- $this->handler_method_data);
- $this->handler_object_data =& $decorator;
- $this->handler_method_data = 'trimData';
- }
- if ($this->parser_options['XML_OPTION_CASE_FOLDING']==1) {
- $open_decor = new TSax3_CaseFolding(
- $this->handler_object_element,
- $this->handler_method_opening,
- $this->handler_method_closing);
- $this->handler_object_element =& $open_decor;
- $this->handler_method_opening ='foldOpen';
- $this->handler_method_closing ='foldClose';
- }
- if ($this->parser_options['XML_OPTION_LINEFEED_BREAK']==1) {
- $decorator = new TSax3_Linefeed(
- $this->handler_object_data,
- $this->handler_method_data);
- $this->handler_object_data =& $decorator;
- $this->handler_method_data = 'breakData';
- }
- if ($this->parser_options['XML_OPTION_TAB_BREAK']==1) {
- $decorator = new TSax3_Tab(
- $this->handler_object_data,
- $this->handler_method_data);
- $this->handler_object_data =& $decorator;
- $this->handler_method_data = 'breakData';
- }
- if ($this->parser_options['XML_OPTION_ENTITIES_UNPARSED']==1) {
- $decorator = new TSax3_Entities_Unparsed(
- $this->handler_object_data,
- $this->handler_method_data);
- $this->handler_object_data =& $decorator;
- $this->handler_method_data = 'breakData';
- }
- if ($this->parser_options['XML_OPTION_ENTITIES_PARSED']==1) {
- $decorator = new TSax3_Entities_Parsed(
- $this->handler_object_data,
- $this->handler_method_data);
- $this->handler_object_data =& $decorator;
- $this->handler_method_data = 'breakData';
- }
- // Note switched on by default
- if ($this->parser_options['XML_OPTION_STRIP_ESCAPES']==1) {
- $decorator = new TSax3_Escape_Stripper(
- $this->handler_object_escape,
- $this->handler_method_escape);
- $this->handler_object_escape =& $decorator;
- $this->handler_method_escape = 'strip';
- }
- $this->rawtext = $data;
- $this->length = strlen($data);
- $this->position = 0;
- $this->_parse();
- }
-
- /**
- * Performs the parsing itself, delegating calls to a specific parser
- * state
- * @param constant state object to parse with
- * @access protected
- * @return void
- */
- function _parse($state = self::TSAX3_STATE_START) {
- do {
- $state = $this->State[$state]->parse($this);
- } while ($state != self::TSAX3_STATE_STOP &&
- $this->position < $this->length);
- }
-}
-
-/**
-* Parser for PHP Versions below 4.3.0. Uses a slower parsing mechanism than
-* the equivalent PHP 4.3.0+ subclass of StateParser
-* @package System.Security.SafeHtml
-* @access protected
-* @see TSax3_StateParser_Gtet430
-*/
-class TSax3_StateParser_Lt430 extends TSax3_StateParser {
- /**
- * Constructs TSax3_StateParser_Lt430 defining available
- * parser options
- * @var TSax3 instance of user front end class
- * @access protected
- */
- function __construct(& $htmlsax) {
- parent::__construct($htmlsax);
- $this->parser_options['XML_OPTION_TRIM_DATA_NODES'] = 0;
- $this->parser_options['XML_OPTION_CASE_FOLDING'] = 0;
- $this->parser_options['XML_OPTION_LINEFEED_BREAK'] = 0;
- $this->parser_options['XML_OPTION_TAB_BREAK'] = 0;
- $this->parser_options['XML_OPTION_ENTITIES_PARSED'] = 0;
- $this->parser_options['XML_OPTION_ENTITIES_UNPARSED'] = 0;
- $this->parser_options['XML_OPTION_STRIP_ESCAPES'] = 0;
- //var_dump($this->parser_options);
- }
-
- /**
- * Returns a string from the current position until the first instance of
- * one of the characters in the supplied string argument
- * @param string string to search until
- * @access protected
- * @return string
- */
- function scanUntilCharacters($string) {
- $startpos = $this->position;
- while ($this->position < $this->length && strpos($string, $this->rawtext{$this->position}) === FALSE) {
- $this->position++;
- }
- return substr($this->rawtext, $startpos, $this->position - $startpos);
- }
-
- /**
- * Moves the position forward past any whitespace characters
- * @access protected
- * @return void
- */
- function ignoreWhitespace() {
- while ($this->position < $this->length &&
- strpos(" \n\r\t", $this->rawtext{$this->position}) !== FALSE) {
- $this->position++;
- }
- }
-
- /**
- * Begins the parsing operation, setting up the unparsed XML entities
- * decorator if necessary then delegating further work to parent
- * @param string XML document to parse
- * @access protected
- * @return void
- */
- function parse($data) {
- parent::parse($data);
- }
-}
-
-/**
-* Parser for PHP Versions equal to or greater than 4.3.0. Uses a faster
-* parsing mechanism than the equivalent PHP < 4.3.0 subclass of StateParser
-* @package System.Security.SafeHtml
-* @access protected
-* @see TSax3_StateParser_Lt430
-*/
-class TSax3_StateParser_Gtet430 extends TSax3_StateParser {
- /**
- * Constructs TSax3_StateParser_Gtet430 defining available
- * parser options
- * @var TSax3 instance of user front end class
- * @access protected
- */
- function __construct(& $htmlsax) {
- parent::__construct($htmlsax);
- $this->parser_options['XML_OPTION_TRIM_DATA_NODES'] = 0;
- $this->parser_options['XML_OPTION_CASE_FOLDING'] = 0;
- $this->parser_options['XML_OPTION_LINEFEED_BREAK'] = 0;
- $this->parser_options['XML_OPTION_TAB_BREAK'] = 0;
- $this->parser_options['XML_OPTION_ENTITIES_PARSED'] = 0;
- $this->parser_options['XML_OPTION_ENTITIES_UNPARSED'] = 0;
- $this->parser_options['XML_OPTION_STRIP_ESCAPES'] = 0;
- }
- /**
- * Returns a string from the current position until the first instance of
- * one of the characters in the supplied string argument.
- * @param string string to search until
- * @access protected
- * @return string
- */
- function scanUntilCharacters($string) {
- $startpos = $this->position;
- $length = strcspn($this->rawtext, $string, $startpos);
- $this->position += $length;
- return substr($this->rawtext, $startpos, $length);
- }
-
- /**
- * Moves the position forward past any whitespace characters
- * @access protected
- * @return void
- */
- function ignoreWhitespace() {
- $this->position += strspn($this->rawtext, " \n\r\t", $this->position);
- }
-
- /**
- * Begins the parsing operation, setting up the parsed and unparsed
- * XML entity decorators if necessary then delegating further work
- * to parent
- * @param string XML document to parse
- * @access protected
- * @return void
- */
- function parse($data) {
- parent::parse($data);
- }
-}
-
-/**
-* Default NullHandler for methods which were not set by user
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_NullHandler {
- /**
- * Generic handler method which does nothing
- * @access protected
- * @return void
- */
- function DoNothing() {
- }
-}
-
-/**
-* User interface class. All user calls should only be made to this class
-* @package System.Security.SafeHtml
-* @access public
-*/
-class TSax3 {
- /**
- * Instance of concrete subclass of TSax3_StateParser
- * @var TSax3_StateParser
- * @access private
- */
- private $state_parser;
-
- /**
- * Constructs TSax3 selecting concrete StateParser subclass
- * depending on PHP version being used as well as setting the default
- * NullHandler for all callbacks<br />
- * <b>Example:</b>
- * <pre>
- * $myHandler = & new MyHandler();
- * $parser = new TSax3();
- * $parser->set_object($myHandler);
- * $parser->set_option('XML_OPTION_CASE_FOLDING');
- * $parser->set_element_handler('myOpenHandler','myCloseHandler');
- * $parser->set_data_handler('myDataHandler');
- * $parser->parser($xml);
- * </pre>
- * @access public
- */
- function __construct() {
- if (version_compare(phpversion(), '4.3', 'ge')) {
- $this->state_parser = new TSax3_StateParser_Gtet430($this);
- } else {
- $this->state_parser = new TSax3_StateParser_Lt430($this);
- }
- $nullhandler = new TSax3_NullHandler();
- $this->set_object($nullhandler);
- $this->set_element_handler('DoNothing', 'DoNothing');
- $this->set_data_handler('DoNothing');
- $this->set_pi_handler('DoNothing');
- $this->set_jasp_handler('DoNothing');
- $this->set_escape_handler('DoNothing');
- }
-
- /**
- * Sets the user defined handler object. Returns a PEAR Error
- * if supplied argument is not an object.
- * @param object handler object containing SAX callback methods
- * @access public
- * @return mixed
- */
- function set_object(&$object) {
- if ( is_object($object) ) {
- $this->state_parser->handler_default =& $object;
- return true;
- } else {
- require_once('PEAR.php');
- PEAR::raiseError('TSax3::set_object requires '.
- 'an object instance');
- }
- }
-
- /**
- * Sets a parser option. By default all options are switched off.
- * Returns a PEAR Error if option is invalid<br />
- * <b>Available options:</b>
- * <ul>
- * <li>XML_OPTION_TRIM_DATA_NODES: trim whitespace off the beginning
- * and end of data passed to the data handler</li>
- * <li>XML_OPTION_LINEFEED_BREAK: linefeeds result in additional data
- * handler calls</li>
- * <li>XML_OPTION_TAB_BREAK: tabs result in additional data handler
- * calls</li>
- * <li>XML_OPTION_ENTITIES_UNPARSED: XML entities are returned as
- * seperate data handler calls in unparsed form</li>
- * <li>XML_OPTION_ENTITIES_PARSED: (PHP 4.3.0+ only) XML entities are
- * returned as seperate data handler calls and are parsed with
- * PHP's html_entity_decode() function</li>
- * <li>XML_OPTION_STRIP_ESCAPES: strips out the -- -- comment markers
- * or CDATA markup inside an XML escape, if found.</li>
- * </ul>
- * To get HTMLSax to behave in the same way as the native PHP SAX parser,
- * using it's default state, you need to switch on XML_OPTION_LINEFEED_BREAK,
- * XML_OPTION_ENTITIES_PARSED and XML_OPTION_CASE_FOLDING
- * @param string name of parser option
- * @param int (optional) 1 to switch on, 0 for off
- * @access public
- * @return boolean
- */
- function set_option($name, $value=1) {
- if ( array_key_exists($name,$this->state_parser->parser_options) ) {
- $this->state_parser->parser_options[$name] = $value;
- return true;
- } else {
- require_once('PEAR.php');
- PEAR::raiseError('TSax3::set_option('.$name.') illegal');
- }
- }
-
- /**
- * Sets the data handler method which deals with the contents of XML
- * elements.<br />
- * The handler method must accept two arguments, the first being an
- * instance of TSax3 and the second being the contents of an
- * XML element e.g.
- * <pre>
- * function myDataHander(& $parser,$data){}
- * </pre>
- * @param string name of method
- * @access public
- * @return void
- * @see set_object
- */
- function set_data_handler($data_method) {
- $this->state_parser->handler_object_data =& $this->state_parser->handler_default;
- $this->state_parser->handler_method_data = $data_method;
- }
-
- /**
- * Sets the open and close tag handlers
- * <br />The open handler method must accept three arguments; the parser,
- * the tag name and an array of attributes e.g.
- * <pre>
- * function myOpenHander(& $parser,$tagname,$attrs=array()){}
- * </pre>
- * The close handler method must accept two arguments; the parser and
- * the tag name e.g.
- * <pre>
- * function myCloseHander(& $parser,$tagname){}
- * </pre>
- * @param string name of open method
- * @param string name of close method
- * @access public
- * @return void
- * @see set_object
- */
- function set_element_handler($opening_method, $closing_method) {
- $this->state_parser->handler_object_element =& $this->state_parser->handler_default;
- $this->state_parser->handler_method_opening = $opening_method;
- $this->state_parser->handler_method_closing = $closing_method;
- }
-
- /**
- * Sets the processing instruction handler method e.g. for PHP open
- * and close tags<br />
- * The handler method must accept three arguments; the parser, the
- * PI target and data inside the PI
- * <pre>
- * function myPIHander(& $parser,$target, $data){}
- * </pre>
- * @param string name of method
- * @access public
- * @return void
- * @see set_object
- */
- function set_pi_handler($pi_method) {
- $this->state_parser->handler_object_pi =& $this->state_parser->handler_default;
- $this->state_parser->handler_method_pi = $pi_method;
- }
-
- /**
- * Sets the XML escape handler method e.g. for comments and doctype
- * declarations<br />
- * The handler method must accept two arguments; the parser and the
- * contents of the escaped section
- * <pre>
- * function myEscapeHander(& $parser, $data){}
- * </pre>
- * @param string name of method
- * @access public
- * @return void
- * @see set_object
- */
- function set_escape_handler($escape_method) {
- $this->state_parser->handler_object_escape =& $this->state_parser->handler_default;
- $this->state_parser->handler_method_escape = $escape_method;
- }
-
- /**
- * Sets the JSP/ASP markup handler<br />
- * The handler method must accept two arguments; the parser and
- * body of the JASP tag
- * <pre>
- * function myJaspHander(& $parser, $data){}
- * </pre>
- * @param string name of method
- * @access public
- * @return void
- * @see set_object
- */
- function set_jasp_handler ($jasp_method) {
- $this->state_parser->handler_object_jasp =& $this->state_parser->handler_default;
- $this->state_parser->handler_method_jasp = $jasp_method;
- }
-
- /**
- * Returns the current string position of the "cursor" inside the XML
- * document
- * <br />Intended for use from within a user defined handler called
- * via the $parser reference e.g.
- * <pre>
- * function myDataHandler(& $parser,$data) {
- * echo( 'Current position: '.$parser->get_current_position() );
- * }
- * </pre>
- * @access public
- * @return int
- * @see get_length
- */
- function get_current_position() {
- return $this->state_parser->position;
- }
-
- /**
- * Returns the string length of the XML document being parsed
- * @access public
- * @return int
- */
- function get_length() {
- return $this->state_parser->length;
- }
-
- /**
- * Start parsing some XML
- * @param string XML document
- * @access public
- * @return void
- */
- function parse($data) {
- $this->state_parser->parse($data);
- }
-}
-?>
\ No newline at end of file diff --git a/framework/IO/SafeHtml/HTMLSax3/Decorators.php b/framework/IO/SafeHtml/HTMLSax3/Decorators.php deleted file mode 100644 index 6256706c..00000000 --- a/framework/IO/SafeHtml/HTMLSax3/Decorators.php +++ /dev/null @@ -1,363 +0,0 @@ -<?php
-/* vim: set expandtab tabstop=4 shiftwidth=4: */
-//
-// +----------------------------------------------------------------------+
-// | PHP Version 4 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1997-2002 The PHP Group |
-// +----------------------------------------------------------------------+
-// | This source file is subject to version 2.02 of the PHP license, |
-// | that is bundled with this package in the file LICENSE, and is |
-// | available at through the world-wide-web at |
-// | http://www.php.net/license/3_0.txt. |
-// | If you did not receive a copy of the PHP license and are unable to |
-// | obtain it through the world-wide-web, please send a note to |
-// | license@php.net so we can mail you a copy immediately. |
-// +----------------------------------------------------------------------+
-// | Authors: Alexander Zhukov <alex@veresk.ru> Original port from Python |
-// | Authors: Harry Fuecks <hfuecks@phppatterns.com> Port to PEAR + more |
-// | Authors: Many @ Sitepointforums Advanced PHP Forums |
-// +----------------------------------------------------------------------+
-//
-// $Id: Decorators.php,v 1.2 2005/12/22 11:09:09 weizhuo Exp $
-//
-/**
-* Decorators for dealing with parser options
-* @package System.Security.SafeHtml
-* @version $Id: Decorators.php,v 1.2 2005/12/22 11:09:09 weizhuo Exp $
-* @see TSax3::set_option
-*/
-/**
-* Trims the contents of element data from whitespace at start and end
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_Trim {
- /**
- * Original handler object
- * @var object
- * @access private
- */
- private $orig_obj;
- /**
- * Original handler method
- * @var string
- * @access private
- */
- private $orig_method;
- /**
- * Constructs TSax3_Trim
- * @param object handler object being decorated
- * @param string original handler method
- * @access protected
- */
- function __construct(&$orig_obj, $orig_method) {
- $this->orig_obj =& $orig_obj;
- $this->orig_method = $orig_method;
- }
- /**
- * Trims the data
- * @param TSax3
- * @param string element data
- * @access protected
- */
- function trimData(&$parser, $data) {
- $data = trim($data);
- if ($data != '') {
- $this->orig_obj->{$this->orig_method}($parser, $data);
- }
- }
-}
-/**
-* Coverts tag names to upper case
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_CaseFolding {
- /**
- * Original handler object
- * @var object
- * @access private
- */
- private $orig_obj;
- /**
- * Original open handler method
- * @var string
- * @access private
- */
- private $orig_open_method;
- /**
- * Original close handler method
- * @var string
- * @access private
- */
- private $orig_close_method;
- /**
- * Constructs TSax3_CaseFolding
- * @param object handler object being decorated
- * @param string original open handler method
- * @param string original close handler method
- * @access protected
- */
- function __construct(&$orig_obj, $orig_open_method, $orig_close_method) {
- $this->orig_obj =& $orig_obj;
- $this->orig_open_method = $orig_open_method;
- $this->orig_close_method = $orig_close_method;
- }
- /**
- * Folds up open tag callbacks
- * @param TSax3
- * @param string tag name
- * @param array tag attributes
- * @access protected
- */
- function foldOpen(&$parser, $tag, $attrs=array(), $empty = FALSE) {
- $this->orig_obj->{$this->orig_open_method}($parser, strtoupper($tag), $attrs, $empty);
- }
- /**
- * Folds up close tag callbacks
- * @param TSax3
- * @param string tag name
- * @access protected
- */
- function foldClose(&$parser, $tag, $empty = FALSE) {
- $this->orig_obj->{$this->orig_close_method}($parser, strtoupper($tag), $empty);
- }
-}
-/**
-* Breaks up data by linefeed characters, resulting in additional
-* calls to the data handler
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_Linefeed {
- /**
- * Original handler object
- * @var object
- * @access private
- */
- private $orig_obj;
- /**
- * Original handler method
- * @var string
- * @access private
- */
- private $orig_method;
- /**
- * Constructs TSax3_LineFeed
- * @param object handler object being decorated
- * @param string original handler method
- * @access protected
- */
- function __construct(&$orig_obj, $orig_method) {
- $this->orig_obj =& $orig_obj;
- $this->orig_method = $orig_method;
- }
- /**
- * Breaks the data up by linefeeds
- * @param TSax3
- * @param string element data
- * @access protected
- */
- function breakData(&$parser, $data) {
- $data = explode("\n",$data);
- foreach ( $data as $chunk ) {
- $this->orig_obj->{$this->orig_method}($parser, $chunk);
- }
- }
-}
-/**
-* Breaks up data by tab characters, resulting in additional
-* calls to the data handler
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_Tab {
- /**
- * Original handler object
- * @var object
- * @access private
- */
- private $orig_obj;
- /**
- * Original handler method
- * @var string
- * @access private
- */
- private $orig_method;
- /**
- * Constructs TSax3_Tab
- * @param object handler object being decorated
- * @param string original handler method
- * @access protected
- */
- function __construct(&$orig_obj, $orig_method) {
- $this->orig_obj =& $orig_obj;
- $this->orig_method = $orig_method;
- }
- /**
- * Breaks the data up by linefeeds
- * @param TSax3
- * @param string element data
- * @access protected
- */
- function breakData(&$parser, $data) {
- $data = explode("\t",$data);
- foreach ( $data as $chunk ) {
- $this->orig_obj->{$this->orig_method}($this, $chunk);
- }
- }
-}
-/**
-* Breaks up data by XML entities and parses them with html_entity_decode(),
-* resulting in additional calls to the data handler<br />
-* Requires PHP 4.3.0+
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_Entities_Parsed {
- /**
- * Original handler object
- * @var object
- * @access private
- */
- private $orig_obj;
- /**
- * Original handler method
- * @var string
- * @access private
- */
- private $orig_method;
- /**
- * Constructs TSax3_Entities_Parsed
- * @param object handler object being decorated
- * @param string original handler method
- * @access protected
- */
- function __construct(&$orig_obj, $orig_method) {
- $this->orig_obj =& $orig_obj;
- $this->orig_method = $orig_method;
- }
- /**
- * Breaks the data up by XML entities
- * @param TSax3
- * @param string element data
- * @access protected
- */
- function breakData(&$parser, $data) {
- $data = preg_split('/(&.+?;)/',$data,-1,PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
- foreach ( $data as $chunk ) {
- $chunk = html_entity_decode($chunk,ENT_NOQUOTES);
- $this->orig_obj->{$this->orig_method}($this, $chunk);
- }
- }
-}
-/**
-* Compatibility with older PHP versions
-*/
-if (version_compare(phpversion(), '4.3', '<') && !function_exists('html_entity_decode') ) {
- function html_entity_decode($str, $style=ENT_NOQUOTES) {
- return strtr($str,
- array_flip(get_html_translation_table(HTML_ENTITIES,$style)));
- }
-}
-/**
-* Breaks up data by XML entities but leaves them unparsed,
-* resulting in additional calls to the data handler<br />
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_Entities_Unparsed {
- /**
- * Original handler object
- * @var object
- * @access private
- */
- private $orig_obj;
- /**
- * Original handler method
- * @var string
- * @access private
- */
- private $orig_method;
- /**
- * Constructs TSax3_Entities_Unparsed
- * @param object handler object being decorated
- * @param string original handler method
- * @access protected
- */
- function __construct(&$orig_obj, $orig_method) {
- $this->orig_obj =& $orig_obj;
- $this->orig_method = $orig_method;
- }
- /**
- * Breaks the data up by XML entities
- * @param TSax3
- * @param string element data
- * @access protected
- */
- function breakData(&$parser, $data) {
- $data = preg_split('/(&.+?;)/',$data,-1,PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
- foreach ( $data as $chunk ) {
- $this->orig_obj->{$this->orig_method}($this, $chunk);
- }
- }
-}
-
-/**
-* Strips the HTML comment markers or CDATA sections from an escape.
-* If XML_OPTIONS_FULL_ESCAPES is on, this decorator is not used.<br />
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_Escape_Stripper {
- /**
- * Original handler object
- * @var object
- * @access private
- */
- private $orig_obj;
- /**
- * Original handler method
- * @var string
- * @access private
- */
- private $orig_method;
- /**
- * Constructs TSax3_Entities_Unparsed
- * @param object handler object being decorated
- * @param string original handler method
- * @access protected
- */
- function __construct(&$orig_obj, $orig_method) {
- $this->orig_obj =& $orig_obj;
- $this->orig_method = $orig_method;
- }
- /**
- * Breaks the data up by XML entities
- * @param TSax3
- * @param string element data
- * @access protected
- */
- function strip(&$parser, $data) {
- // Check for HTML comments first
- if ( substr($data,0,2) == '--' ) {
- $patterns = array(
- '/^\-\-/', // Opening comment: --
- '/\-\-$/', // Closing comment: --
- );
- $data = preg_replace($patterns,'',$data);
-
- // Check for XML CDATA sections (note: don't do both!)
- } else if ( substr($data,0,1) == '[' ) {
- $patterns = array(
- '/^\[.*CDATA.*\[/s', // Opening CDATA
- '/\].*\]$/s', // Closing CDATA
- );
- $data = preg_replace($patterns,'',$data);
- }
-
- $this->orig_obj->{$this->orig_method}($this, $data);
- }
-}
-?>
\ No newline at end of file diff --git a/framework/IO/SafeHtml/HTMLSax3/States.php b/framework/IO/SafeHtml/HTMLSax3/States.php deleted file mode 100644 index 2b863a59..00000000 --- a/framework/IO/SafeHtml/HTMLSax3/States.php +++ /dev/null @@ -1,288 +0,0 @@ -<?php
-/* vim: set expandtab tabstop=4 shiftwidth=4: */
-//
-// +----------------------------------------------------------------------+
-// | PHP Version 4 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1997-2002 The PHP Group |
-// +----------------------------------------------------------------------+
-// | This source file is subject to version 2.02 of the PHP license, |
-// | that is bundled with this package in the file LICENSE, and is |
-// | available at through the world-wide-web at |
-// | http://www.php.net/license/3_0.txt. |
-// | If you did not receive a copy of the PHP license and are unable to |
-// | obtain it through the world-wide-web, please send a note to |
-// | license@php.net so we can mail you a copy immediately. |
-// +----------------------------------------------------------------------+
-// | Authors: Alexander Zhukov <alex@veresk.ru> Original port from Python |
-// | Authors: Harry Fuecks <hfuecks@phppatterns.com> Port to PEAR + more |
-// | Authors: Many @ Sitepointforums Advanced PHP Forums |
-// +----------------------------------------------------------------------+
-//
-// $Id: States.php,v 1.2 2005/12/22 11:09:09 weizhuo Exp $
-//
-/**
-* Parsing states.
-* @package System.Security.SafeHtml
-* @version $Id: States.php,v 1.2 2005/12/22 11:09:09 weizhuo Exp $
-*/
-/**
-* Define parser states
-*/
-/*define('TSAX3_STATE_STOP', 0);
-define('TSAX3_STATE_START', 1);
-define('TSAX3_STATE_TAG', 2);
-define('TSAX3_STATE_OPENING_TAG', 3);
-define('TSAX3_STATE_CLOSING_TAG', 4);
-define('TSAX3_STATE_ESCAPE', 6);
-define('TSAX3_STATE_JASP', 7);
-define('TSAX3_STATE_PI', 8);
-*/
-/**
-* StartingState searches for the start of any XML tag
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_StartingState {
- /**
- * @param TSax3_StateParser subclass
- * @return constant TSAX3_STATE_TAG
- * @access protected
- */
- function parse(&$context) {
- $data = $context->scanUntilString('<');
- if ($data != '') {
- $context->handler_object_data->
- {$context->handler_method_data}($context->htmlsax, $data);
- }
- $context->IgnoreCharacter();
- return TSax3_StateParser::TSAX3_STATE_TAG;
- }
-}
-/**
-* Decides which state to move one from after StartingState
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_TagState {
- /**
- * @param TSax3_StateParser subclass
- * @return constant the next state to move into
- * @access protected
- */
- function parse(&$context) {
- switch($context->ScanCharacter()) {
- case '/':
- return TSax3_StateParser::TSAX3_STATE_CLOSING_TAG;
- break;
- case '?':
- return TSax3_StateParser::TSAX3_STATE_PI;
- break;
- case '%':
- return TSax3_StateParser::TSAX3_STATE_JASP;
- break;
- case '!':
- return TSax3_StateParser::TSAX3_STATE_ESCAPE;
- break;
- default:
- $context->unscanCharacter();
- return TSax3_StateParser::TSAX3_STATE_OPENING_TAG;
- }
- }
-}
-/**
-* Dealing with closing XML tags
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_ClosingTagState {
- /**
- * @param TSax3_StateParser subclass
- * @return constant TSAX3_STATE_START
- * @access protected
- */
- function parse(&$context) {
- $tag = $context->scanUntilCharacters('/>');
- if ($tag != '') {
- $char = $context->scanCharacter();
- if ($char == '/') {
- $char = $context->scanCharacter();
- if ($char != '>') {
- $context->unscanCharacter();
- }
- }
- $context->handler_object_element->
- {$context->handler_method_closing}($context->htmlsax, $tag, FALSE);
- }
- return TSax3_StateParser::TSAX3_STATE_START;
- }
-}
-/**
-* Dealing with opening XML tags
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_OpeningTagState {
- /**
- * Handles attributes
- * @param string attribute name
- * @param string attribute value
- * @return void
- * @access protected
- * @see TSax3_AttributeStartState
- */
- function parseAttributes(&$context) {
- $Attributes = array();
-
- $context->ignoreWhitespace();
- $attributename = $context->scanUntilCharacters("=/> \n\r\t");
- while ($attributename != '') {
- $attributevalue = NULL;
- $context->ignoreWhitespace();
- $char = $context->scanCharacter();
- if ($char == '=') {
- $context->ignoreWhitespace();
- $char = $context->ScanCharacter();
- if ($char == '"') {
- $attributevalue= $context->scanUntilString('"');
- $context->IgnoreCharacter();
- } else if ($char == "'") {
- $attributevalue = $context->scanUntilString("'");
- $context->IgnoreCharacter();
- } else {
- $context->unscanCharacter();
- $attributevalue =
- $context->scanUntilCharacters("> \n\r\t");
- }
- } else if ($char !== NULL) {
- $attributevalue = NULL;
- $context->unscanCharacter();
- }
- $Attributes[$attributename] = $attributevalue;
-
- $context->ignoreWhitespace();
- $attributename = $context->scanUntilCharacters("=/> \n\r\t");
- }
- return $Attributes;
- }
-
- /**
- * @param TSax3_StateParser subclass
- * @return constant TSAX3_STATE_START
- * @access protected
- */
- function parse(&$context) {
- $tag = $context->scanUntilCharacters("/> \n\r\t");
- if ($tag != '') {
- $this->attrs = array();
- $Attributes = $this->parseAttributes($context);
- $char = $context->scanCharacter();
- if ($char == '/') {
- $char = $context->scanCharacter();
- if ($char != '>') {
- $context->unscanCharacter();
- }
- $context->handler_object_element->
- {$context->handler_method_opening}($context->htmlsax, $tag,
- $Attributes, TRUE);
- $context->handler_object_element->
- {$context->handler_method_closing}($context->htmlsax, $tag,
- TRUE);
- } else {
- $context->handler_object_element->
- {$context->handler_method_opening}($context->htmlsax, $tag,
- $Attributes, FALSE);
- }
- }
- return TSax3_StateParser::TSAX3_STATE_START;
- }
-}
-
-/**
-* Deals with XML escapes handling comments and CDATA correctly
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_EscapeState {
- /**
- * @param TSax3_StateParser subclass
- * @return constant TSAX3_STATE_START
- * @access protected
- */
- function parse(&$context) {
- $char = $context->ScanCharacter();
- if ($char == '-') {
- $char = $context->ScanCharacter();
- if ($char == '-') {
- $context->unscanCharacter();
- $context->unscanCharacter();
- $text = $context->scanUntilString('-->');
- $text .= $context->scanCharacter();
- $text .= $context->scanCharacter();
- } else {
- $context->unscanCharacter();
- $text = $context->scanUntilString('>');
- }
- } else if ( $char == '[') {
- $context->unscanCharacter();
- $text = $context->scanUntilString(']>');
- $text.= $context->scanCharacter();
- } else {
- $context->unscanCharacter();
- $text = $context->scanUntilString('>');
- }
-
- $context->IgnoreCharacter();
- if ($text != '') {
- $context->handler_object_escape->
- {$context->handler_method_escape}($context->htmlsax, $text);
- }
- return TSax3_StateParser::TSAX3_STATE_START;
- }
-}
-/**
-* Deals with JASP/ASP markup
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_JaspState {
- /**
- * @param TSax3_StateParser subclass
- * @return constant TSAX3_STATE_START
- * @access protected
- */
- function parse(&$context) {
- $text = $context->scanUntilString('%>');
- if ($text != '') {
- $context->handler_object_jasp->
- {$context->handler_method_jasp}($context->htmlsax, $text);
- }
- $context->IgnoreCharacter();
- $context->IgnoreCharacter();
- return TSax3_StateParser::TSAX3_STATE_START;
- }
-}
-/**
-* Deals with XML processing instructions
-* @package System.Security.SafeHtml
-* @access protected
-*/
-class TSax3_PiState {
- /**
- * @param TSax3_StateParser subclass
- * @return constant TSAX3_STATE_START
- * @access protected
- */
- function parse(&$context) {
- $target = $context->scanUntilCharacters(" \n\r\t");
- $data = $context->scanUntilString('?>');
- if ($data != '') {
- $context->handler_object_pi->
- {$context->handler_method_pi}($context->htmlsax, $target, $data);
- }
- $context->IgnoreCharacter();
- $context->IgnoreCharacter();
- return TSax3_StateParser::TSAX3_STATE_START;
- }
-}
-?>
\ No newline at end of file diff --git a/framework/IO/SafeHtml/license.txt b/framework/IO/SafeHtml/license.txt deleted file mode 100644 index 21496aa2..00000000 --- a/framework/IO/SafeHtml/license.txt +++ /dev/null @@ -1,26 +0,0 @@ -(c) Roman Ivanov, 2004-2005
-(c) Pixel-Apes ( http://pixel-apes.com/ ), 2004-2005
-(c) JetStyle ( http://jetstyle.ru/ ), 2004-2005
-Maintainer -- Roman Ivanov <thingol@mail.ru>
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
-2. 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.
-3. The name of the author may not be used to endorse or promote products
- derived from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
diff --git a/framework/IO/SafeHtml/readme.txt b/framework/IO/SafeHtml/readme.txt deleted file mode 100644 index d525f92c..00000000 --- a/framework/IO/SafeHtml/readme.txt +++ /dev/null @@ -1,81 +0,0 @@ -SafeHTML
---------
-Version 1.3.7.
-http://pixel-apes.com/safehtml/
---------
-
-This parser strips down all potentially dangerous content within HTML:
- * opening tag without its closing tag
- * closing tag without its opening tag
- * any of these tags: "base", "basefont", "head", "html", "body", "applet", "object",
- "iframe", "frame", "frameset", "script", "layer", "ilayer", "embed", "bgsound",
- "link", "meta", "style", "title", "blink", "xml" etc.
- * any of these attributes: on*, data*, dynsrc
- * javascript:/vbscript:/about: etc. protocols
- * expression/behavior etc. in styles
- * any other active content
-It also tries to convert code to XHTML valid, but htmltidy is far better solution for this task.
-
-If you found any bugs in this parser, please inform me -- ICQ:551593 or mailto:thingol@mail.ru
-
-Please, subscribe to http://pixel-apes.com/safehtml/feed/rss feed in order to receive notices
-when SAFEHTML will be updated.
-
--- Roman Ivanov.
--- Pixel-Apes ( http://pixel-apes.com ).
--- JetStyle ( http://jetstyle.ru/ ).
-
-
-
---------
-Version history:
---------
-1.3.7.
- * Added 'dl' to the list of 'lists' tags.
- * Added 'callto' to the white list of protocols.
- * Added white list of "namespaced" attributes.
-1.3.6.
- * More accurate UTF-7 decoding.
-1.3.5.
- * Two serious security flaws fixed: UTF-7 XSS and CSS comments handling.
-1.3.2.
- * Security flaw (improper quotes handling in attributes' values) fixed. Big thanks to Nick Cleaton.
-1.3.1.
- * Dumb bug fixed (some closing tags were ignored).
-1.3.0.
- * Two holes (with decimal HTML entities and with \x00 symbol) fixed.
- * Class rewritten under PEAR coding standarts.
- * Class now uses unmodified HTMLSax3 from PEAR.
- * To the list of table tags added: "caption", "col", "colgroup".
-1.2.1.
- * It was possible to create XSS with hexadecimal HTML entities. Fixed. Big thanks to Christian Stocker.
-1.2.0.
- * "id" and "name" attributes added to dangerous attributes list, because malefactor can broke legal javascript by spoofing ID or NAME of some element.
- * New method parse() allows to do all parsing process in two lines of code. Examples also updated.
- * New array, closeParagraph, contains list of block-level elements. When we open such elemet, we should close paragraph before. . It allows SafeHTML to produce more XHTML compliant code.
- * Added "webcal" to white list of protocols for those who uses calendar programs (Mozilla/iCal/etc).
- * Now SafeHTML strips down table elements when we are not inside table.
- * Now SafeHTML correctly closes unclosed "li" tags: before opening "li" of the same nesting level.
-1.1.0.
- * New "dangerous" protocols: hcp, ms-help, help, disk, vnd.ms.radio, opera, res, resource, chrome, mocha, livescript.
- * <XML> tag was moved from "tags for deletion" to "tags for deletion with content".
- * New "dangerous" CSS instruction "include-source" (NN4 specific).
- * New array, Attributes, contains list of attributes for removal. If you need to remove "id" or "name" attribute,
- just add it to this array.
- * Now it is possible to choose between white-list and black-list filtering of protocols. Defaults are "white-list".
- This list is: "http", "https", "ftp", "telnet", "news", "nntp", "gopher", "mailto", "file".
- * For speed purposes, we now filter protocols only from these attributes: src, href, action, lowsrc, dynsrc,
- background, codebase.
- * Opera6 XSS bug ([\xC0][\xBC]script>alert(1)[\xC0][\xBC]/script> [UTF-8] workarounded.
-1.0.4.
- New "dangerous" tag: plaintext.
-1.0.3.
- Added array of elements that can have no closing tag.
-1.0.2.
- Bug fix: <img src="javascript:alert(1);"> attack.
- Thanks to shmel.
-1.0.1.
- Bug fix: safehtml hangs on <style></style></style> code.
- Thanks to lj user=electrocat.
-1.0.0.
- First public release
diff --git a/framework/IO/TSafeHtml.php b/framework/IO/TSafeHtml.php deleted file mode 100644 index 311ae2a3..00000000 --- a/framework/IO/TSafeHtml.php +++ /dev/null @@ -1,670 +0,0 @@ -<?php
-/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
-
-/**
- * SafeHTML Parser
- *
- * PHP versions 4 and 5
- *
- * @category HTML
- * @package System.Security
- * @author Roman Ivanov <thingol@mail.ru>
- * @copyright 2004-2005 Roman Ivanov
- * @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
- * @version 1.3.7
- * @link http://pixel-apes.com/safehtml/
- */
-
-
-/**
- * This package requires HTMLSax3 package
- */
-Prado::using('System.IO..SafeHtml.HTMLSax3');
-
-
-/**
- *
- * SafeHTML Parser
- *
- * This parser strips down all potentially dangerous content within HTML:
- * <ul>
- * <li>opening tag without its closing tag</li>
- * <li>closing tag without its opening tag</li>
- * <li>any of these tags: "base", "basefont", "head", "html", "body", "applet",
- * "object", "iframe", "frame", "frameset", "script", "layer", "ilayer", "embed",
- * "bgsound", "link", "meta", "style", "title", "blink", "xml" etc.</li>
- * <li>any of these attributes: on*, data*, dynsrc</li>
- * <li>javascript:/vbscript:/about: etc. protocols</li>
- * <li>expression/behavior etc. in styles</li>
- * <li>any other active content</li>
- * </ul>
- * It also tries to convert code to XHTML valid, but htmltidy is far better
- * solution for this task.
- *
- * <b>Example:</b>
- * <pre>
- * $parser =& new SafeHTML();
- * $result = $parser->parse($doc);
- * </pre>
- *
- * @category HTML
- * @package System.Security
- * @author Roman Ivanov <thingol@mail.ru>
- * @copyright 1997-2005 Roman Ivanov
- * @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
- * @version Release: @package_version@
- * @link http://pear.php.net/package/SafeHTML
- */
-class TSafeHtml
-{
- /**
- * Storage for resulting HTML output
- *
- * @var string
- * @access private
- */
- private $_xhtml = '';
-
- /**
- * Array of counters for each tag
- *
- * @var array
- * @access private
- */
- private $_counter = array();
-
- /**
- * Stack of unclosed tags
- *
- * @var array
- * @access private
- */
- private $_stack = array();
-
- /**
- * Array of counters for tags that must be deleted with all content
- *
- * @var array
- * @access private
- */
- private $_dcCounter = array();
-
- /**
- * Stack of unclosed tags that must be deleted with all content
- *
- * @var array
- * @access private
- */
- private $_dcStack = array();
-
- /**
- * Stores level of list (ol/ul) nesting
- *
- * @var int
- * @access private
- */
- private $_listScope = 0;
-
- /**
- * Stack of unclosed list tags
- *
- * @var array
- * @access private
- */
- private $_liStack = array();
-
- /**
- * Array of prepared regular expressions for protocols (schemas) matching
- *
- * @var array
- * @access private
- */
- private $_protoRegexps = array();
-
- /**
- * Array of prepared regular expressions for CSS matching
- *
- * @var array
- * @access private
- */
- private $_cssRegexps = array();
-
- /**
- * List of single tags ("<tag />")
- *
- * @var array
- * @access public
- */
- public $singleTags = array('area', 'br', 'img', 'input', 'hr', 'wbr', );
-
- /**
- * List of dangerous tags (such tags will be deleted)
- *
- * @var array
- * @access public
- */
- public $deleteTags = array(
- 'applet', 'base', 'basefont', 'bgsound', 'blink', 'body',
- 'embed', 'frame', 'frameset', 'head', 'html', 'ilayer',
- 'iframe', 'layer', 'link', 'meta', 'object', 'style',
- 'title', 'script',
- );
-
- /**
- * List of dangerous tags (such tags will be deleted, and all content
- * inside this tags will be also removed)
- *
- * @var array
- * @access public
- */
- public $deleteTagsContent = array('script', 'style', 'title', 'xml', );
-
- /**
- * Type of protocols filtering ('white' or 'black')
- *
- * @var string
- * @access public
- */
- public $protocolFiltering = 'white';
-
- /**
- * List of "dangerous" protocols (used for blacklist-filtering)
- *
- * @var array
- * @access public
- */
- public $blackProtocols = array(
- 'about', 'chrome', 'data', 'disk', 'hcp',
- 'help', 'javascript', 'livescript', 'lynxcgi', 'lynxexec',
- 'ms-help', 'ms-its', 'mhtml', 'mocha', 'opera',
- 'res', 'resource', 'shell', 'vbscript', 'view-source',
- 'vnd.ms.radio', 'wysiwyg',
- );
-
- /**
- * List of "safe" protocols (used for whitelist-filtering)
- *
- * @var array
- * @access public
- */
- public $whiteProtocols = array(
- 'ed2k', 'file', 'ftp', 'gopher', 'http', 'https',
- 'irc', 'mailto', 'news', 'nntp', 'telnet', 'webcal',
- 'xmpp', 'callto',
- );
-
- /**
- * List of attributes that can contain protocols
- *
- * @var array
- * @access public
- */
- public $protocolAttributes = array(
- 'action', 'background', 'codebase', 'dynsrc', 'href', 'lowsrc', 'src',
- );
-
- /**
- * List of dangerous CSS keywords
- *
- * Whole style="" attribute will be removed, if parser will find one of
- * these keywords
- *
- * @var array
- * @access public
- */
- public $cssKeywords = array(
- 'absolute', 'behavior', 'behaviour', 'content', 'expression',
- 'fixed', 'include-source', 'moz-binding',
- );
-
- /**
- * List of tags that can have no "closing tag"
- *
- * @var array
- * @access public
- * @deprecated XHTML does not allow such tags
- */
- public $noClose = array();
-
- /**
- * List of block-level tags that terminates paragraph
- *
- * Paragraph will be closed when this tags opened
- *
- * @var array
- * @access public
- */
- public $closeParagraph = array(
- 'address', 'blockquote', 'center', 'dd', 'dir', 'div',
- 'dl', 'dt', 'h1', 'h2', 'h3', 'h4',
- 'h5', 'h6', 'hr', 'isindex', 'listing', 'marquee',
- 'menu', 'multicol', 'ol', 'p', 'plaintext', 'pre',
- 'table', 'ul', 'xmp',
- );
-
- /**
- * List of table tags, all table tags outside a table will be removed
- *
- * @var array
- * @access public
- */
- public $tableTags = array(
- 'caption', 'col', 'colgroup', 'tbody', 'td', 'tfoot', 'th',
- 'thead', 'tr',
- );
-
- /**
- * List of list tags
- *
- * @var array
- * @access public
- */
- public $listTags = array('dir', 'menu', 'ol', 'ul', 'dl', );
-
- /**
- * List of dangerous attributes
- *
- * @var array
- * @access public
- */
- public $attributes = array('dynsrc', 'id', 'name', );
-
- /**
- * List of allowed "namespaced" attributes
- *
- * @var array
- * @access public
- */
- public $attributesNS = array('xml:lang', );
-
- /**
- * Constructs class
- *
- * @access public
- */
- public function __construct()
- {
- //making regular expressions based on Proto & CSS arrays
- foreach ($this->blackProtocols as $proto) {
- $preg = "/[\s\x01-\x1F]*";
- for ($i=0; $i<strlen($proto); $i++) {
- $preg .= $proto{$i} . "[\s\x01-\x1F]*";
- }
- $preg .= ":/i";
- $this->_protoRegexps[] = $preg;
- }
-
- foreach ($this->cssKeywords as $css) {
- $this->_cssRegexps[] = '/' . $css . '/i';
- }
- return true;
- }
-
- /**
- * Handles the writing of attributes - called from $this->_openHandler()
- *
- * @param array $attrs array of attributes $name => $value
- * @return boolean
- * @access private
- */
- private function _writeAttrs ($attrs)
- {
- if (is_array($attrs)) {
- foreach ($attrs as $name => $value) {
-
- $name = strtolower($name);
-
- if (strpos($name, 'on') === 0) {
- continue;
- }
- if (strpos($name, 'data') === 0) {
- continue;
- }
- if (in_array($name, $this->attributes)) {
- continue;
- }
- if (!preg_match("/^[a-z0-9]+$/i", $name)) {
- if (!in_array($name, $this->attributesNS))
- {
- continue;
- }
- }
-
- if (($value === TRUE) || (is_null($value))) {
- $value = $name;
- }
-
- if ($name == 'style') {
-
- // removes insignificant backslahes
- $value = str_replace("\\", '', $value);
-
- // removes CSS comments
- while (1)
- {
- $_value = preg_replace("!/\*.*?\*/!s", '', $value);
- if ($_value == $value) break;
- $value = $_value;
- }
-
- // replace all & to &
- $value = str_replace('&', '&', $value);
- $value = str_replace('&', '&', $value);
-
- foreach ($this->_cssRegexps as $css) {
- if (preg_match($css, $value)) {
- continue 2;
- }
- }
- foreach ($this->_protoRegexps as $proto) {
- if (preg_match($proto, $value)) {
- continue 2;
- }
- }
- }
-
- $tempval = preg_replace('/&#(\d+);?/me', "chr('\\1')", $value); //"'
- $tempval = preg_replace('/&#x([0-9a-f]+);?/mei', "chr(hexdec('\\1'))", $tempval);
-
- if ((in_array($name, $this->protocolAttributes)) &&
- (strpos($tempval, ':') !== false))
- {
- if ($this->protocolFiltering == 'black') {
- foreach ($this->_protoRegexps as $proto) {
- if (preg_match($proto, $tempval)) continue 2;
- }
- } else {
- $_tempval = explode(':', $tempval);
- $proto = $_tempval[0];
- if (!in_array($proto, $this->whiteProtocols)) {
- continue;
- }
- }
- }
-
- $value = str_replace("\"", """, $value);
- $this->_xhtml .= ' ' . $name . '="' . $value . '"';
- }
- }
- return true;
- }
-
- /**
- * Opening tag handler - called from HTMLSax
- *
- * @param object $parser HTML Parser
- * @param string $name tag name
- * @param array $attrs tag attributes
- * @return boolean
- * @access private
- */
- public function _openHandler(&$parser, $name, $attrs)
- {
- $name = strtolower($name);
-
- if (in_array($name, $this->deleteTagsContent)) {
- array_push($this->_dcStack, $name);
- $this->_dcCounter[$name] = isset($this->_dcCounter[$name]) ? $this->_dcCounter[$name]+1 : 1;
- }
- if (count($this->_dcStack) != 0) {
- return true;
- }
-
- if (in_array($name, $this->deleteTags)) {
- return true;
- }
-
- if (!preg_match("/^[a-z0-9]+$/i", $name)) {
- if (preg_match("!(?:\@|://)!i", $name)) {
- $this->_xhtml .= '<' . $name . '>';
- }
- return true;
- }
-
- if (in_array($name, $this->singleTags)) {
- $this->_xhtml .= '<' . $name;
- $this->_writeAttrs($attrs);
- $this->_xhtml .= ' />';
- return true;
- }
-
- // TABLES: cannot open table elements when we are not inside table
- if ((isset($this->_counter['table'])) && ($this->_counter['table'] <= 0)
- && (in_array($name, $this->tableTags)))
- {
- return true;
- }
-
- // PARAGRAPHS: close paragraph when closeParagraph tags opening
- if ((in_array($name, $this->closeParagraph)) && (in_array('p', $this->_stack))) {
- $this->_closeHandler($parser, 'p');
- }
-
- // LISTS: we should close <li> if <li> of the same level opening
- if ($name == 'li' && count($this->_liStack) &&
- $this->_listScope == $this->_liStack[count($this->_liStack)-1])
- {
- $this->_closeHandler($parser, 'li');
- }
-
- // LISTS: we want to know on what nesting level of lists we are
- if (in_array($name, $this->listTags)) {
- $this->_listScope++;
- }
- if ($name == 'li') {
- array_push($this->_liStack, $this->_listScope);
- }
-
- $this->_xhtml .= '<' . $name;
- $this->_writeAttrs($attrs);
- $this->_xhtml .= '>';
- array_push($this->_stack,$name);
- $this->_counter[$name] = isset($this->_counter[$name]) ? $this->_counter[$name]+1 : 1;
- return true;
- }
-
- /**
- * Closing tag handler - called from HTMLSax
- *
- * @param object $parsers HTML parser
- * @param string $name tag name
- * @return boolean
- * @access private
- */
- public function _closeHandler(&$parser, $name)
- {
-
- $name = strtolower($name);
-
- if (isset($this->_dcCounter[$name]) && ($this->_dcCounter[$name] > 0) &&
- (in_array($name, $this->deleteTagsContent)))
- {
- while ($name != ($tag = array_pop($this->_dcStack))) {
- $this->_dcCounter[$tag]--;
- }
-
- $this->_dcCounter[$name]--;
- }
-
- if (count($this->_dcStack) != 0) {
- return true;
- }
-
- if ((isset($this->_counter[$name])) && ($this->_counter[$name] > 0)) {
- while ($name != ($tag = array_pop($this->_stack))) {
- $this->_closeTag($tag);
- }
-
- $this->_closeTag($name);
- }
- return true;
- }
-
- /**
- * Closes tag
- *
- * @param string $tag tag name
- * @return boolean
- * @access private
- */
- public function _closeTag($tag)
- {
- if (!in_array($tag, $this->noClose)) {
- $this->_xhtml .= '</' . $tag . '>';
- }
-
- $this->_counter[$tag]--;
-
- if (in_array($tag, $this->listTags)) {
- $this->_listScope--;
- }
-
- if ($tag == 'li') {
- array_pop($this->_liStack);
- }
- return true;
- }
-
- /**
- * Character data handler - called from HTMLSax
- *
- * @param object $parser HTML parser
- * @param string $data textual data
- * @return boolean
- * @access private
- */
- public function _dataHandler(&$parser, $data)
- {
- if (count($this->_dcStack) == 0) {
- $this->_xhtml .= $data;
- }
- return true;
- }
-
- /**
- * Escape handler - called from HTMLSax
- *
- * @param object $parser HTML parser
- * @param string $data comments or other type of data
- * @return boolean
- * @access private
- */
- public function _escapeHandler(&$parser, $data)
- {
- return true;
- }
-
- /**
- * Returns the XHTML document
- *
- * @return string Processed (X)HTML document
- * @access public
- */
- public function getXHTML ()
- {
- while ($tag = array_pop($this->_stack)) {
- $this->_closeTag($tag);
- }
-
- return $this->_xhtml;
- }
-
- /**
- * Clears current document data
- *
- * @return boolean
- * @access public
- */
- public function clear()
- {
- $this->_xhtml = '';
- return true;
- }
-
- /**
- * Main parsing fuction
- *
- * @param string $doc HTML document for processing
- * @return string Processed (X)HTML document
- * @access public
- */
- public function parse($doc)
- {
-
- // Save all '<' symbols
- $doc = preg_replace("/<(?=[^a-zA-Z\/\!\?\%])/", '<', (string)$doc);
-
- // Web documents shouldn't contains \x00 symbol
- $doc = str_replace("\x00", '', $doc);
-
- // Opera6 bug workaround
- $doc = str_replace("\xC0\xBC", '<', $doc);
-
- // UTF-7 encoding ASCII decode
- $doc = $this->repackUTF7($doc);
-
- // Instantiate the parser
- $parser= new TSax3();
-
- // Set up the parser
- $parser->set_object($this);
-
- $parser->set_element_handler('_openHandler','_closeHandler');
- $parser->set_data_handler('_dataHandler');
- $parser->set_escape_handler('_escapeHandler');
-
- $parser->parse($doc);
-
- return $this->getXHTML();
-
- }
-
-
- /**
- * UTF-7 decoding fuction
- *
- * @param string $str HTML document for recode ASCII part of UTF-7 back to ASCII
- * @return string Decoded document
- * @access private
- */
- private function repackUTF7($str)
- {
- return preg_replace_callback('!\+([0-9a-zA-Z/]+)\-!', array($this, 'repackUTF7Callback'), $str);
- }
-
- /**
- * Additional UTF-7 decoding fuction
- *
- * @param string $str String for recode ASCII part of UTF-7 back to ASCII
- * @return string Recoded string
- * @access private
- */
- private function repackUTF7Callback($str)
- {
- $str = base64_decode($str[1]);
- $str = preg_replace_callback('/^((?:\x00.)*)((?:[^\x00].)+)/', array($this, 'repackUTF7Back'), $str);
- return preg_replace('/\x00(.)/', '$1', $str);
- }
-
- /**
- * Additional UTF-7 encoding fuction
- *
- * @param string $str String for recode ASCII part of UTF-7 back to ASCII
- * @return string Recoded string
- * @access private
- */
- private function repackUTF7Back($str)
- {
- return $str[1].'+'.rtrim(base64_encode($str[2]), '=').'-';
- }
-}
-
-/*
- * Local variables:
- * tab-width: 4
- * c-basic-offset: 4
- * c-hanging-comment-ender-p: nil
- * End:
- */
-
-?>
\ No newline at end of file |