0
0
mirror of https://github.com/ezyang/htmlpurifier.git synced 2024-09-18 18:25:18 +00:00
- Documentation updated
- API docs now exclude more files that are not classes
- Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3
- (internal) Refactored parseData() to general Lexer class

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@466 48356398-32a2-884e-a903-53898d9a118a
This commit is contained in:
Edward Z. Yang 2006-09-27 02:09:54 +00:00
parent d9bb97cc26
commit 37def0104b
8 changed files with 99 additions and 79 deletions

View File

@ -4,7 +4,7 @@
# Project related configuration options
#---------------------------------------------------------------------------
PROJECT_NAME = HTML Purifier
PROJECT_NUMBER = 1.0.0
PROJECT_NUMBER = 1.1.1
OUTPUT_DIRECTORY = "C:/Documents and Settings/Edward/My Documents/My Webs/htmlpurifier/docs/doxygen"
CREATE_SUBDIRS = NO
OUTPUT_LANGUAGE = English
@ -89,9 +89,12 @@ EXCLUDE =
EXCLUDE_SYMLINKS = NO
EXCLUDE_PATTERNS = */tests/* \
*/benchmarks/* \
*/docs/phpdoc/* \
*/docs/doxygen/* \
*/test-settings.php
*/docs/* \
*/test-settings.php \
*/configdoc/* \
*/test-settings.php \
*/maintenance/* \
*/smoketests/*
EXAMPLE_PATH =
EXAMPLE_PATTERNS = *
EXAMPLE_RECURSIVE = NO

3
NEWS
View File

@ -6,7 +6,10 @@ NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
1.1.2, unknown projected release date
(bugfix release, may be merged with 1.2.0 if new features precede major bugs)
- Documentation updated
- API docs now exclude more files that are not classes
- Line endings standardized throughout project
- Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3
1.1.1, released 2006-09-24
- Various documentation updates

View File

@ -3,7 +3,7 @@
/*!
* @mainpage
*
* HTMLPurifier is an HTML filter that will take an arbitrary snippet of
* HTML Purifier is an HTML filter that will take an arbitrary snippet of
* HTML and rigorously test, validate and filter it into a version that
* is safe for output onto webpages. It achieves this by:
*
@ -22,7 +22,7 @@
*/
/*
HTMLPurifier - Standards Compliant HTML Filtering
HTML Purifier - Standards Compliant HTML Filtering
Copyright (C) 2006 Edward Z. Yang
This library is free software; you can redistribute it and/or

View File

@ -60,6 +60,60 @@ class HTMLPurifier_Lexer
$this->_entity_parser = new HTMLPurifier_EntityParser();
}
/**
* Most common entity to raw value conversion table for special entities.
* @protected
*/
var $_special_entity2str =
array(
'"' => '"',
'&' => '&',
'&lt;' => '<',
'&gt;' => '>',
'&#39;' => "'",
'&#039;' => "'",
'&#x27;' => "'"
);
/**
* Parses special entities into the proper characters.
*
* This string will translate escaped versions of the special characters
* into the correct ones.
*
* @warning
* You should be able to treat the output of this function as
* completely parsed, but that's only because all other entities should
* have been handled previously in substituteNonSpecialEntities()
*
* @param $string String character data to be parsed.
* @returns Parsed character data.
*/
function parseData($string) {
// following functions require at least one character
if ($string === '') return '';
// subtracts amps that cannot possibly be escaped
$num_amp = substr_count($string, '&') - substr_count($string, '& ') -
($string[strlen($string)-1] === '&' ? 1 : 0);
if (!$num_amp) return $string; // abort if no entities
$num_esc_amp = substr_count($string, '&amp;');
$string = strtr($string, $this->_special_entity2str);
// code duplication for sake of optimization, see above
$num_amp_2 = substr_count($string, '&') - substr_count($string, '& ') -
($string[strlen($string)-1] === '&' ? 1 : 0);
if ($num_amp_2 <= $num_esc_amp) return $string;
// hmm... now we have some uncommon entities. Use the callback.
$string = $this->_entity_parser->substituteSpecialEntities($string);
return $string;
}
var $_encoder;
/**

View File

@ -12,64 +12,12 @@ require_once 'HTMLPurifier/Lexer.php';
* completely eventually.
*
* @todo Reread XML spec and document differences.
* @todo Add support for CDATA sections.
* @todo Determine correct behavior in outputting comment data. (preserve dashes?)
* @todo Optimize main function tokenizeHTML().
* @todo Less than sign (<) being prohibited (even as entity) in attr-values?
*
* @todo Determine correct behavior in transforming comment data. (preserve dashes?)
*/
class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
{
/**
* Most common entity to raw value conversion table for special entities.
* @protected
*/
var $_special_entity2str =
array(
'&quot;' => '"',
'&amp;' => '&',
'&lt;' => '<',
'&gt;' => '>',
'&#39;' => "'",
'&#039;' => "'",
'&#x27;' => "'"
);
/**
* Parses special entities into the proper characters.
*
* This string will translate escaped versions of the special characters
* into the correct ones.
*
* @warning
* You should be able to treat the output of this function as
* completely parsed, but that's only because all other entities should
* have been handled previously in substituteNonSpecialEntities()
*
* @param $string String character data to be parsed.
* @returns Parsed character data.
*/
function parseData($string) {
// subtracts amps that cannot possibly be escaped
$num_amp = substr_count($string, '&') - substr_count($string, '& ') -
($string[strlen($string)-1] === '&' ? 1 : 0);
if (!$num_amp) return $string; // abort if no entities
$num_esc_amp = substr_count($string, '&amp;');
$string = strtr($string, $this->_special_entity2str);
// code duplication for sake of optimization, see above
$num_amp_2 = substr_count($string, '&') - substr_count($string, '& ') -
($string[strlen($string)-1] === '&' ? 1 : 0);
if ($num_amp_2 <= $num_esc_amp) return $string;
// hmm... now we have some uncommon entities. Use the callback.
$string = $this->_entity_parser->substituteSpecialEntities($string);
return $string;
}
/**
* Whitespace characters for str(c)spn.
* @protected

View File

@ -18,6 +18,8 @@ require_once 'HTMLPurifier/Lexer.php';
* whatever it does for poorly formed HTML is up to it.
*
* @todo Generalize so that XML_HTMLSax is also supported.
*
* @warning Entity-resolution inside attributes is broken.
*/
class HTMLPurifier_Lexer_PEARSax3 extends HTMLPurifier_Lexer
@ -41,6 +43,8 @@ class HTMLPurifier_Lexer_PEARSax3 extends HTMLPurifier_Lexer
$parser->set_element_handler('openHandler','closeHandler');
$parser->set_data_handler('dataHandler');
$parser->set_escape_handler('escapeHandler');
// doesn't seem to work correctly for attributes
$parser->set_option('XML_OPTION_ENTITIES_PARSED', 1);
$parser->parse($string);
@ -53,6 +57,10 @@ class HTMLPurifier_Lexer_PEARSax3 extends HTMLPurifier_Lexer
* Open tag event handler, interface is defined by PEAR package.
*/
function openHandler(&$parser, $name, $attrs, $closed) {
// entities are not resolved in attrs
foreach ($attrs as $key => $attr) {
$attrs[$key] = $this->parseData($attr);
}
if ($closed) {
$this->tokens[] = new HTMLPurifier_Token_Empty($name, $attrs);
} else {

View File

@ -11,24 +11,6 @@ class HTMLPurifier_Lexer_DirectLexTest extends UnitTestCase
$this->DirectLex = new HTMLPurifier_Lexer_DirectLex();
}
function test_parseData() {
$HP =& $this->DirectLex;
$this->assertIdentical('asdf', $HP->parseData('asdf'));
$this->assertIdentical('&', $HP->parseData('&amp;'));
$this->assertIdentical('"', $HP->parseData('&quot;'));
$this->assertIdentical("'", $HP->parseData('&#039;'));
$this->assertIdentical("'", $HP->parseData('&#39;'));
$this->assertIdentical('&&&', $HP->parseData('&amp;&amp;&amp;'));
$this->assertIdentical('&&', $HP->parseData('&amp;&')); // [INVALID]
$this->assertIdentical('Procter & Gamble',
$HP->parseData('Procter & Gamble')); // [INVALID]
// This is not special, thus not converted. Test of fault tolerance,
// realistically speaking, this should never happen
$this->assertIdentical('&#x2D;', $HP->parseData('&#x2D;'));
}
// internals testing
function test_parseAttributeString() {

View File

@ -38,6 +38,25 @@ class HTMLPurifier_LexerTest extends UnitTestCase
$this->assertIdentical($extract, $result);
}
function test_parseData() {
$HP =& $this->Lexer;
$this->assertIdentical('asdf', $HP->parseData('asdf'));
$this->assertIdentical('&', $HP->parseData('&amp;'));
$this->assertIdentical('"', $HP->parseData('&quot;'));
$this->assertIdentical("'", $HP->parseData('&#039;'));
$this->assertIdentical("'", $HP->parseData('&#39;'));
$this->assertIdentical('&&&', $HP->parseData('&amp;&amp;&amp;'));
$this->assertIdentical('&&', $HP->parseData('&amp;&')); // [INVALID]
$this->assertIdentical('Procter & Gamble',
$HP->parseData('Procter & Gamble')); // [INVALID]
// This is not special, thus not converted. Test of fault tolerance,
// realistically speaking, this should never happen
$this->assertIdentical('&#x2D;', $HP->parseData('&#x2D;'));
}
function test_extractBody() {
$this->assertExtractBody('<b>Bold</b>');
$this->assertExtractBody('<html><body><b>Bold</b></body></html>', '<b>Bold</b>');
@ -249,13 +268,16 @@ class HTMLPurifier_LexerTest extends UnitTestCase
,new HTMLPurifier_Token_Text('Link')
,new HTMLPurifier_Token_End('a')
);
$sax_expect[16] = false; // PEARSax doesn't support it!
// test that UTF-8 is preserved
$char_hearts = $this->_entity_lookup->table['hearts'];
$input[17] = $char_hearts;
$expect[17] = array( new HTMLPurifier_Token_Text($char_hearts) );
// test weird characters in attributes
$input[18] = '<br test="x &lt; 6" />';
$expect[18] = array( new HTMLPurifier_Token_Empty('br', array('test' => 'x < 6')) );
$default_config = HTMLPurifier_Config::createDefault();
foreach($input as $i => $discard) {
if (!isset($config[$i])) $config[$i] = $default_config;