public static function cleanChildTokens(Configuration $configuration, array &$children, LoggerInterface $logger)
{
if ($configuration->get('clean-strategy') == Configuration::CLEAN_STRATEGY_NONE) {
return true;
}
foreach ($children as $key => $child) {
if ($child instanceof Cleanable) {
$isClean = $child->clean($logger);
if (!$isClean && $configuration->get('clean-strategy') !== Configuration::CLEAN_STRATEGY_LENIENT) {
unset($children[$key]);
}
}
}
return true;
}
public function clean($html)
{
// Tokenize.
$tokenizer = new Tokenizer($this->configuration);
$tokenContainer = $tokenizer->tokenize($html);
// Remove unwanted tokens.
$tokenContainer->remove($this->logger);
// Build output generator.
$outputClassName = 'Groundskeeper\\Output\\' . ucfirst($this->configuration->get('output'));
$outputGenerator = new $outputClassName();
// Clean
$i = 0;
do {
if ($i > 0) {
$tokenContainer = $tokenizer->tokenize($cleanedOutput);
}
$preCleaningOutput = $outputGenerator($tokenContainer);
$tokenContainer->clean($this->logger);
$cleanedOutput = $outputGenerator($tokenContainer);
++$i;
} while ($i < 5 && $preCleaningOutput != $cleanedOutput);
return $cleanedOutput;
}
/**
* Required by the Removable interface.
*/
public function remove(LoggerInterface $logger)
{
$hasRemovableElements = $this->configuration->get('element-blacklist') != '';
$hasRemovableTypes = $this->configuration->get('type-blacklist') != '';
foreach ($this->children as $child) {
// Check types.
if ($hasRemovableTypes && !$this->configuration->isAllowedType($child->getType())) {
$logger->debug('Removing ' . $child . ' on type blacklist.');
$this->removeChild($child);
continue;
}
// Check elements.
if ($hasRemovableElements && $child instanceof Element && !$this->configuration->isAllowedElement($child->getName())) {
$logger->debug('Removing ' . $child . ' on element blacklist.');
$this->removeChild($child);
continue;
}
// Check children.
if ($child instanceof Removable) {
$child->remove($logger);
}
}
}
private function cleanAttributeInteger(Configuration $configuration, Element $element, LoggerInterface $logger)
{
if ($this->value === true || $this->value == '') {
if ($configuration->get('clean-strategy') !== Configuration::CLEAN_STRATEGY_LENIENT) {
$logger->debug('Within ' . $element . ', the value for the attribute "' . $this->name . '" is required to be an positive, non-zero integer. The value is invalid, therefore the attribute has been removed.');
}
return false;
}
if (!is_int($this->value)) {
$origonalValue = (string) $this->value;
$this->value = (int) $this->value;
if ($origonalValue != (string) $this->value) {
$logger->debug('Within ' . $element . ', the value for the attribute "' . $this->name . '" is required to be an positive, non-zero integer. The value has been converted to an integer.');
}
}
if ($this->value <= 0 && $configuration->get('clean-strategy') !== Configuration::CLEAN_STRATEGY_LENIENT) {
$logger->debug('Within ' . $element . ', the value for the attribute "' . $this->value . '" is required to be an positive, non-zero integer. The value is invalid, therefore the attribute has been removed.');
return false;
}
return true;
}