/**
*
* get tag and attrs
* @param string $value
*/
public function getTagData($value)
{
$mixed = $this->getInstance("Fl_Html_TagToken", $value)->run();
$attrs = $mixed['attrs'];
$data = array($this->options['tag'] => $mixed['tag']);
if (!empty($attrs)) {
foreach ($attrs as $aItem) {
$count = count($aItem);
if ($count === 1) {
$attrsData[$aItem[0]] = "";
} elseif ($count === 3) {
if ($this->options['attrs_remove_quote']) {
$valueDetail = Fl_Html_Static::getUnquoteText($aItem[2]);
$attrsData[$aItem[0]] = $valueDetail['text'];
} else {
$attrsData[$aItem[0]] = $aItem[2];
}
}
}
$data[$this->options['attrs']] = $attrsData;
}
return $data;
}
/**
*
* 压缩开始标签
*/
public function compressStartTag($token)
{
if ($this->isXML) {
return $token['value'];
}
$tag = $token['tag'];
$lowerTag = $token['lowerTag'];
$attrs = $token['attrs'];
$resultAttrs = array();
foreach ($attrs as $item) {
if ($item[1] === '=') {
$valueDetail = Fl_Html_Static::getUnquoteText($item[2]);
if ($this->options['removeAttrDefaultValue'] && Fl_Html_Static::isTagAttrDefaultValue($item[0], $valueDetail['text'], $lowerTag)) {
continue;
}
if ($this->options['attrOnlyName'] && Fl_Html_Static::isTagOnlyNameAttr($item[0])) {
$item = array($item[0]);
} else {
if ($this->options['removeAttrQuote'] && Fl_Html_Static::isAttrValueNoQuote($valueDetail['text'], $this)) {
$item[2] = $valueDetail['text'];
}
}
}
$resultAttrs[] = $item;
}
$return = Fl_Html_Static::LEFT;
if ($this->options['tagToLower']) {
$return .= $lowerTag;
} else {
$return .= $tag;
}
$blankChar = ' ';
$return .= $blankChar;
foreach ($resultAttrs as $item) {
$itemText = join('', $item);
$lastChar = substr($return, strlen($return) - 1);
if ($lastChar !== '"' && $lastChar !== "'" && $lastChar !== $blankChar) {
if ($item[1] !== '=' && $this->isTpl($item[0]) && !$this->checkTplHasOutput($item[0])) {
//do nothing
} else {
$return .= $blankChar;
}
}
$return .= $itemText;
}
if ($this->options['endSingleTag'] && Fl_Html_Static::isSingleTag($lowerTag)) {
$lastChar = substr($return, strlen($return) - 1);
if ($lastChar !== '"' && $lastChar !== "'" && $lastChar !== $blankChar) {
$return .= $blankChar;
}
$return .= '/';
}
$return = rtrim($return);
$return .= Fl_Html_Static::RIGHT;
return $return;
}
/**
*
* 过滤开始标签
* @param array $token
*/
public function filterTag($token, $notCheckECss = false)
{
$value = $token['value'];
if (!empty($value)) {
$instance = $this->getInstance('Fl_Html_TagToken', $value);
$result = $instance->run();
} else {
$result = $token;
}
$tag = strtolower($result['tag']);
//外链的css
if (!$notCheckECss && $this->isExternalCss($result)) {
return $this->filterExternalCss($result);
}
if ($this->options['use_blank_tag_filter']) {
if (!in_array($tag, $this->blankTagList)) {
return false;
}
}
$attrs = $result['attrs'];
$attrResult = array();
foreach ($attrs as $item) {
$name = strtolower($item[0]);
//过滤事件
if ($this->options['remove_tag_event']) {
if (strpos($name, 'on') === 0) {
continue;
}
}
//标签属性白名单
if ($this->options['use_blank_tag_property_filter']) {
if (!in_array($name, $this->blankTagPropertyList)) {
//标签的特殊属性过滤
if ($this->options['use_special_tag_filter']) {
if (isset($this->allowSpecialTagProperty[$tag])) {
$propList = $this->allowSpecialTagProperty[$tag];
if (isset($propList[$name])) {
$value = $propList[$name];
$values = Fl_Html_Static::getUnquoteText($item[2]);
//正则
if (substr($value, 0, 1) === '/') {
if (preg_match($value, $values['text'])) {
$attrResult[] = $item;
}
} else {
if ($value === $values['text']) {
$attrResult[] = $item;
}
}
}
}
}
continue;
}
}
//a链接修复和过滤
if ($tag == 'a' && $this->options['filter_a_href_value'] && $name == 'href') {
if (count($item) == 3 && $item[1] == '=') {
$values = Fl_Html_Static::getUnquoteText($item[2]);
$url = Fl_Static::getFixedUrl($values['text'], $this->url);
if ($this->options['url_max_length']) {
$url = substr($url, 0, $this->options['url_max_length']);
}
$item[2] = $values['quote'] . $url . $values['quote'];
} else {
continue;
}
}
//图片连接的修复和过滤
if ($tag == 'img' && $this->options['filter_img_src_value'] && $name == 'src') {
if (count($item) == 3 && $item[1] == '=') {
$values = Fl_Html_Static::getUnquoteText($item[2]);
$url = Fl_Static::getFixedUrl($values['text'], $this->url);
if ($this->options['url_max_length']) {
$url = substr($url, 0, $this->options['url_max_length']);
}
$item[2] = $values['quote'] . $url . $values['quote'];
} else {
continue;
}
}
//style value
if ($this->options['filter_tag_style_value'] && $name == 'style') {
if (count($item) == 3 && $item[1] == '=') {
$values = Fl_Html_Static::getUnquoteText($item[2]);
$text = 'a{' . $values['text'] . '}';
$instance = $this->getInstance("Fl_Css_Filter", $text);
$instance->url = $this->url;
$instance->getResourceContentFn = $this->getResourceContentFn;
$text = $instance->run($this->options);
$item[2] = $values['quote'] . substr($text, 2, strlen($text) - 3) . $values['quote'];
} else {
continue;
}
}
$attrResult[] = $item;
}
$attrsJoin = array();
foreach ($attrResult as $item) {
$attrsJoin[] = join("", $item);
}
if (empty($attrsJoin)) {
return '<' . $tag . '>';
}
return '<' . $tag . ' ' . join(" ", $attrsJoin) . ">";
}
/**
*
* 压缩开始标签
*/
public function compressStartTag($token)
{
if ($this->isXML || !$this->options['compress_tag']) {
return $token['value'];
}
$tag = $token['tag'];
$lowerTag = $token['lowerTag'];
if ($lowerTag === 'meta' && $this->options['simple_charset']) {
$result = $this->compressCharset($token);
if ($result) {
return $result;
}
}
$attrs = $token['attrs'];
$resultAttrs = array();
foreach ($attrs as $item) {
if ($item[1] === '=') {
$valueDetail = Fl_Html_Static::getUnquoteText($item[2]);
$nameLower = strtolower($item[0]);
if ($this->options['remove_optional_attrs'] && Fl_Html_Static::isTagAttrDefaultValue($item[0], $valueDetail['text'], $lowerTag)) {
continue;
}
if ($this->options['remove_attrs_optional_value'] && Fl_Html_Static::isTagOnlyNameAttr($item[0])) {
$item = array($item[0]);
} else {
if ($this->options['remove_attrs_quote'] && Fl_Html_Static::isAttrValueNoQuote($valueDetail['text'], $this)) {
if ($nameLower != 'style') {
$item[2] = $valueDetail['text'];
$valueDetail['quote'] = '';
}
}
}
//$nameLower = strtolower ( $item [0] );
//remove html xmlns attr
if ($lowerTag === 'html' && $nameLower === 'xmlns' && $this->options['remove_html_xmlns']) {
continue;
}
if ($this->options['remove_http_protocal'] || $this->options['remove_https_protocal']) {
if ($nameLower === 'href' || $nameLower === "src") {
$valueDetail = Fl_Html_Static::getUnquoteText($item[2]);
$value = $valueDetail['text'];
if ($this->options['remove_http_protocal'] && strpos($value, "http://") === 0) {
$value = substr($value, 5);
$item[2] = $valueDetail['quote'] . $value . $valueDetail['quote'];
} elseif ($this->options['remove_https_protocal'] && strpos($value, "https://") === 0) {
$value = substr($value, 6);
$item[2] = $valueDetail['quote'] . $value . $valueDetail['quote'];
}
}
}
//$valueDetail = Fl_Html_Static::getUnquoteText ( $item [2] );
//remove ext blank in class value
if ($nameLower === 'class' && !$this->containTpl($item[2])) {
$value = trim($valueDetail['text']);
$value = preg_split(FL_SPACE_PATTERN, $value);
$item[2] = $valueDetail['quote'] . join(FL_SPACE, $value) . $valueDetail['quote'];
} else {
if ($this->options['compress_style_value'] && $nameLower === 'style' && !$this->containTpl($valueDetail["text"])) {
//如果压缩失败，则直接使用源代码
try {
if ($this->cssCompressMethod) {
$value = call_user_func($this->cssCompressMethod, "*{" . $valueDetail["text"] . "}", $this);
} else {
$value = $this->getInstance("Fl_Css_Compress", "*{" . $valueDetail["text"] . "}")->run();
}
$item[2] = $valueDetail['quote'] . substr($value, 2, strlen($value) - 3) . $valueDetail['quote'];
} catch (Fl_Exception $e) {
//这里不抛出异常
}
} else {
if (strpos($nameLower, "on") === 0) {
//remove last ; in onxxx attr
$value = trim(trim($valueDetail['text']), ';');
$item[2] = $valueDetail['quote'] . $value . $valueDetail['quote'];
}
}
}
}
$resultAttrs[] = $item;
}
$return = Fl_Html_Static::LEFT;
if ($this->options['tag_to_lower']) {
$return .= $lowerTag;
} else {
$return .= $tag;
}
$blankChar = FL_SPACE;
$return .= $blankChar;
foreach ($resultAttrs as $item) {
$itemText = join('', $item);
$lastChar = substr($return, strlen($return) - 1);
if ($lastChar !== '"' && $lastChar !== "'" && $lastChar !== $blankChar) {
if ($item[1] !== '=' && $this->isTpl($item[0]) && !$this->checkTplHasOutput($item[0])) {
//do nothing
} else {
$return .= $blankChar;
}
} else {
$last2Char = substr($return, strlen($return) - 2);
if ($last2Char === '\\"' || $last2Char === "\\'") {
$return .= $blankChar;
}
}
$return .= $itemText;
}
$return = rtrim($return) . Fl_Html_Static::RIGHT;
return $return;
}
/**
*
* 获取特定属性的值
* @param array $attrs
* @param string $name
*/
public static function getAttrValue($attrs, $name = '')
{
foreach ($attrs as $item) {
if (count($item) === 3) {
if (strtolower($item[0]) === $name) {
$value = $item[2];
$valueInfo = Fl_Html_Static::getUnquoteText($value);
return $valueInfo['text'];
}
}
}
return false;
}
