protected static function truncateHtml($string, $count, $suffix, $wordsPerLine, $encoding)
{
$config = \HTMLPurifier_Config::create(null);
$config->set('Cache.SerializerPath', \Yii::$app->getRuntimePath());
$lexer = \HTMLPurifier_Lexer::create($config);
$tokens = $lexer->tokenizeHTML($string, $config, null);
$openTokens = 0;
$totalCount = 0;
$truncated = [];
foreach ($tokens as $token) {
if ($token instanceof \HTMLPurifier_Token_Start) {
//Tag begins
$openTokens++;
$truncated[] = $token;
} elseif ($token instanceof \HTMLPurifier_Token_Text && $totalCount <= $count) {
//Text
if (false === $encoding) {
$token->data = self::truncateWords($token->data, ($count - $totalCount) * $wordsPerLine, '');
$currentWords = str_word_count($token->data);
} else {
$token->data = self::truncate($token->data, ($count - $totalCount) * $wordsPerLine, '', $encoding) . ' ';
$currentWords = mb_strlen($token->data, $encoding);
}
//$totalCount += $currentWords;
if (!$token->is_whitespace) {
$totalCount += intval(ceil($currentWords / $wordsPerLine));
}
//turn into lines
if (1 === $currentWords) {
$token->data = ' ' . $token->data;
}
$truncated[] = $token;
} elseif ($token instanceof \HTMLPurifier_Token_End) {
//Tag ends
$openTokens--;
$truncated[] = $token;
} elseif ($token instanceof \HTMLPurifier_Token_Empty) {
//Self contained tags, i.e. <img/> etc.
if ($token->name == 'img') {
//filter img tag
} else {
$truncated[] = $token;
}
}
if (0 === $openTokens && $totalCount >= $count) {
break;
}
}
$context = new \HTMLPurifier_Context();
$generator = new \HTMLPurifier_Generator($config, $context);
return $generator->generateFromTokens($truncated) . $suffix;
}
public function __construct()
{
// setup the factory
parent::HTMLPurifier_Lexer();
$this->factory = new HTMLPurifier_TokenFactory();
}
/**
* Filters an HTML snippet/document to be XSS-free and standards-compliant.
*
* @param $html String of HTML to purify
* @param $config HTMLPurifier_Config object for this operation, if omitted,
* defaults to the config object specified during this
* object's construction. The parameter can also be any type
* that HTMLPurifier_Config::create() supports.
* @return Purified HTML
*/
public function purify($html, $config = null)
{
// :TODO: make the config merge in, instead of replace
$config = $config ? HTMLPurifier_Config::create($config) : $this->config;
// implementation is partially environment dependant, partially
// configuration dependant
$lexer = HTMLPurifier_Lexer::create($config);
$context = new HTMLPurifier_Context();
// setup HTML generator
$this->generator = new HTMLPurifier_Generator($config, $context);
$context->register('Generator', $this->generator);
// set up global context variables
if ($config->get('Core.CollectErrors')) {
// may get moved out if other facilities use it
$language_factory = HTMLPurifier_LanguageFactory::instance();
$language = $language_factory->create($config, $context);
$context->register('Locale', $language);
$error_collector = new HTMLPurifier_ErrorCollector($context);
$context->register('ErrorCollector', $error_collector);
}
// setup id_accumulator context, necessary due to the fact that
// AttrValidator can be called from many places
$id_accumulator = HTMLPurifier_IDAccumulator::build($config, $context);
$context->register('IDAccumulator', $id_accumulator);
$html = HTMLPurifier_Encoder::convertToUTF8($html, $config, $context);
// setup filters
$filter_flags = $config->getBatch('Filter');
$custom_filters = $filter_flags['Custom'];
unset($filter_flags['Custom']);
$filters = array();
foreach ($filter_flags as $filter => $flag) {
if (!$flag) {
continue;
}
if (strpos($filter, '.') !== false) {
continue;
}
$class = "HTMLPurifier_Filter_{$filter}";
$filters[] = new $class();
}
foreach ($custom_filters as $filter) {
// maybe "HTMLPurifier_Filter_$filter", but be consistent with AutoFormat
$filters[] = $filter;
}
$filters = array_merge($filters, $this->filters);
// maybe prepare(), but later
for ($i = 0, $filter_size = count($filters); $i < $filter_size; $i++) {
$html = $filters[$i]->preFilter($html, $config, $context);
}
// purified HTML
$html = $this->generator->generateFromTokens($this->strategy->execute($lexer->tokenizeHTML($html, $config, $context), $config, $context));
for ($i = $filter_size - 1; $i >= 0; $i--) {
$html = $filters[$i]->postFilter($html, $config, $context);
}
$html = HTMLPurifier_Encoder::convertFromUTF8($html, $config, $context);
$this->context =& $context;
return $html;
}
/**
* Truncate a string while preserving the HTML.
*
* @param string $string The string to truncate
* @param integer $count
* @param string $suffix String to append to the end of the truncated string.
* @param string|boolean $encoding
* @return string
* @since 2.0.1
*/
protected static function truncateHtml($string, $count, $suffix, $encoding = false)
{
$config = \HTMLPurifier_Config::create(null);
$lexer = \HTMLPurifier_Lexer::create($config);
$tokens = $lexer->tokenizeHTML($string, $config, null);
$openTokens = 0;
$totalCount = 0;
$truncated = [];
foreach ($tokens as $token) {
if ($token instanceof \HTMLPurifier_Token_Start) {
//Tag begins
$openTokens++;
$truncated[] = $token;
} else {
if ($token instanceof \HTMLPurifier_Token_Text && $totalCount <= $count) {
//Text
if (false === $encoding) {
$token->data = self::truncateWords($token->data, $count - $totalCount, '');
$currentCount = str_word_count($token->data);
} else {
$token->data = self::truncate($token->data, $count - $totalCount, '', $encoding) . ' ';
$currentCount = mb_strlen($token->data, $encoding);
}
$totalCount += $currentCount;
if (1 === $currentCount) {
$token->data = ' ' . $token->data;
}
$truncated[] = $token;
} else {
if ($token instanceof \HTMLPurifier_Token_End) {
//Tag ends
$openTokens--;
$truncated[] = $token;
} else {
if ($token instanceof \HTMLPurifier_Token_Empty) {
//Self contained tags, i.e. <img/> etc.
$truncated[] = $token;
}
}
}
}
if (0 === $openTokens && $totalCount >= $count) {
break;
}
}
$context = new \HTMLPurifier_Context();
$generator = new \HTMLPurifier_Generator($config, $context);
return $generator->generateFromTokens($truncated) . $suffix;
}
function assertExtractBody($text, $extract = true)
{
$lexer = new HTMLPurifier_Lexer();
$result = $lexer->extractBody($text);
if ($extract === true) {
$extract = $text;
}
$this->assertIdentical($extract, $result);
}
/**
* Filters an HTML snippet/document to be XSS-free and standards-compliant.
*
* @param $html String of HTML to purify
* @param $config HTMLPurifier_Config object for this operation, if omitted,
* defaults to the config object specified during this
* object's construction. The parameter can also be any type
* that HTMLPurifier_Config::create() supports.
* @return Purified HTML
*/
function purify($html, $config = null)
{
$config = $config ? HTMLPurifier_Config::create($config) : $this->config;
// implementation is partially environment dependant, partially
// configuration dependant
$lexer = HTMLPurifier_Lexer::create($config);
$context = new HTMLPurifier_Context();
// our friendly neighborhood generator, all primed with configuration too!
$this->generator->generateFromTokens(array(), $config, $context);
$context->register('Generator', $this->generator);
// set up global context variables
if ($config->get('Core', 'CollectErrors')) {
// may get moved out if other facilities use it
$language_factory = HTMLPurifier_LanguageFactory::instance();
$language = $language_factory->create($config, $context);
$context->register('Locale', $language);
$error_collector = new HTMLPurifier_ErrorCollector($context);
$context->register('ErrorCollector', $error_collector);
}
$html = HTMLPurifier_Encoder::convertToUTF8($html, $config, $context);
for ($i = 0, $size = count($this->filters); $i < $size; $i++) {
$html = $this->filters[$i]->preFilter($html, $config, $context);
}
// purified HTML
$html = $this->generator->generateFromTokens($this->strategy->execute($lexer->tokenizeHTML($html, $config, $context), $config, $context), $config, $context);
for ($i = $size - 1; $i >= 0; $i--) {
$html = $this->filters[$i]->postFilter($html, $config, $context);
}
$html = HTMLPurifier_Encoder::convertFromUTF8($html, $config, $context);
$this->context =& $context;
return $html;
}
/**
* Truncate a string while preserving the HTML.
*
* @param string $string The string to truncate
* @param int $count
* @param string $suffix String to append to the end of the truncated string.
* @param string|bool $encoding
* @return string
* @since 2.0.1
*/
protected static function truncateHtml($string, $count, $suffix, $encoding = false)
{
$config = \HTMLPurifier_Config::create(null);
$config->set('Cache.SerializerPath', \Yii::$app->getRuntimePath());
$lexer = \HTMLPurifier_Lexer::create($config);
$tokens = $lexer->tokenizeHTML($string, $config, null);
$openTokens = 0;
$totalCount = 0;
$truncated = [];
foreach ($tokens as $token) {
if ($token instanceof \HTMLPurifier_Token_Start) {
//Tag begins
$openTokens++;
$truncated[] = $token;
} elseif ($token instanceof \HTMLPurifier_Token_Text && $totalCount <= $count) {
//Text
if (false === $encoding) {
preg_match('/^(\\s*)/um', $token->data, $prefixSpace) ?: ($prefixSpace = ['', '']);
$token->data = $prefixSpace[1] . self::truncateWords(ltrim($token->data), $count - $totalCount, '');
$currentCount = self::countWords($token->data);
} else {
$token->data = self::truncate($token->data, $count - $totalCount, '', $encoding);
$currentCount = mb_strlen($token->data, $encoding);
}
$totalCount += $currentCount;
$truncated[] = $token;
} elseif ($token instanceof \HTMLPurifier_Token_End) {
//Tag ends
$openTokens--;
$truncated[] = $token;
} elseif ($token instanceof \HTMLPurifier_Token_Empty) {
//Self contained tags, i.e. <img/> etc.
$truncated[] = $token;
}
if (0 === $openTokens && $totalCount >= $count) {
break;
}
}
$context = new \HTMLPurifier_Context();
$generator = new \HTMLPurifier_Generator($config, $context);
return $generator->generateFromTokens($truncated) . ($totalCount >= $count ? $suffix : '');
}
public function __construct()
{
parent::__construct();
$this->factory = new HTMLPurifier_TokenFactory();
}
