public function minify($url)
{
$this->url = $url;
$cachFilePath = WPFC_WP_CONTENT_DIR . "/cache/wpfc-minified/" . md5($url);
$cssLink = content_url() . "/cache/wpfc-minified/" . md5($url);
if (is_dir($cachFilePath)) {
if ($cssFiles = @scandir($cachFilePath, 1)) {
if ($cssContent = $this->file_get_contents_curl($cssLink . "/" . $cssFiles[0])) {
return array("cachFilePath" => $cachFilePath, "cssContent" => $cssContent, "url" => $cssLink . "/" . $cssFiles[0], "realUrl" => $url);
} else {
return false;
}
}
} else {
if ($cssContent = $this->file_get_contents_curl($url, "?v=" . time())) {
$original_content_length = strlen($cssContent);
$cssContent = $this->fixPathsInCssContent($cssContent, $url);
if (isset($this->wpfc->options->wpFastestCacheMinifyCss) && $this->wpfc->options->wpFastestCacheMinifyCss) {
$cssContent = $this->_process($cssContent);
}
if (isset($this->wpfc->options->wpFastestCacheMinifyCssPowerFul) && $this->wpfc->options->wpFastestCacheMinifyCssPowerFul) {
if (class_exists("WpFastestCachePowerfulHtml")) {
$powerful_html = new WpFastestCachePowerfulHtml();
$cssContent = $powerful_html->minify_css($cssContent);
}
}
$cssContent = str_replace("", '', $cssContent);
// If the content is empty, the file is not created. This breaks "combine css" feature
if (strlen($cssContent) == 0 && $original_content_length > 0) {
return array("cssContent" => "", "url" => $url);
}
if (!is_dir($cachFilePath)) {
$prefix = time();
if ($this->wpfc->cdn) {
$cssContent = preg_replace_callback("/(url)\\(([^\\)]+)\\)/i", array($this->wpfc, 'cdn_replace_urls'), $cssContent);
}
$this->wpfc->createFolder($cachFilePath, $cssContent, "css", $prefix);
}
if ($cssFiles = @scandir($cachFilePath, 1)) {
return array("cachFilePath" => $cachFilePath, "cssContent" => $cssContent, "url" => $cssLink . "/" . $cssFiles[0], "realUrl" => $url);
}
}
}
return false;
}
public function minify($url)
{
$this->url = $url;
$cachFilePath = WPFC_WP_CONTENT_DIR . "/cache/wpfc-minified/" . md5($url);
$cssLink = content_url() . "/cache/wpfc-minified/" . md5($url);
if (is_dir($cachFilePath)) {
if ($cssFiles = @scandir($cachFilePath, 1)) {
if ($cssContent = $this->file_get_contents_curl($cssLink . "/" . $cssFiles[0])) {
return array("cachFilePath" => $cachFilePath, "cssContent" => $cssContent, "url" => $cssLink . "/" . $cssFiles[0], "realUrl" => $url);
} else {
return false;
}
}
} else {
if ($cssContent = $this->file_get_contents_curl($url . "?v=" . time())) {
$cssContent = $this->fixPathsInCssContent($cssContent);
if (isset($this->wpfc->options->wpFastestCacheMinifyCss) && $this->wpfc->options->wpFastestCacheMinifyCss) {
$cssContent = $this->_process($cssContent);
}
if (isset($this->wpfc->options->wpFastestCacheMinifyCssPowerFul) && $this->wpfc->options->wpFastestCacheMinifyCssPowerFul) {
if (class_exists("WpFastestCachePowerfulHtml")) {
$powerful_html = new WpFastestCachePowerfulHtml();
$cssContent = $powerful_html->minify_css($cssContent);
}
}
$cssContent = str_replace("", '', $cssContent);
if (!is_dir($cachFilePath)) {
$prefix = time();
$this->wpfc->createFolder($cachFilePath, $cssContent, "css", $prefix);
}
if ($cssFiles = @scandir($cachFilePath, 1)) {
return array("cachFilePath" => $cachFilePath, "cssContent" => $cssContent, "url" => $cssLink . "/" . $cssFiles[0], "realUrl" => $url);
}
}
}
return false;
}
public function combineCss($wpfc, $minify = false)
{
if (count($this->getCssLinks()) > 0) {
$prev = array("content" => "", "value" => array(), "name" => "");
foreach ($this->getCssLinks() as $key => $value) {
if ($href = $this->checkInternal($value)) {
if (preg_match("/\\.ttf/", $href)) {
continue;
}
if (strpos($this->getCssLinksExcept(), $href) === false && (preg_match("/media=[\\'\"]all[\\'\"]/", $value) || !preg_match("/media=/", $value))) {
$minifiedCss = $this->minify($href, $minify);
if ($minifiedCss) {
if ($minify && isset($wpfc->options->wpFastestCacheMinifyCssPowerFul)) {
$powerful_html = new WpFastestCachePowerfulHtml();
$minifiedCss["cssContent"] = $powerful_html->minify_css($minifiedCss["cssContent"]);
}
if (!is_dir($minifiedCss["cachFilePath"])) {
$prefix = time();
$wpfc->createFolder($minifiedCss["cachFilePath"], $minifiedCss["cssContent"], "css", $prefix);
}
if ($cssFiles = @scandir($minifiedCss["cachFilePath"], 1)) {
if ($cssContent = $this->file_get_contents_curl($minifiedCss["url"] . "/" . $cssFiles[0] . "?v=" . time())) {
$prev["name"] .= $minifiedCss["realUrl"];
$prev["content"] .= $cssContent . "\n";
array_push($prev["value"], $value);
}
}
}
} else {
$prev["content"] = $this->fixRules($prev["content"]);
$this->mergeCss($wpfc, $prev);
$prev = array("content" => "", "value" => array());
}
} else {
$prev["content"] = $this->fixRules($prev["content"]);
$this->mergeCss($wpfc, $prev);
$prev = array("content" => "", "value" => array());
}
}
$prev["content"] = $this->fixRules($prev["content"]);
$this->mergeCss($wpfc, $prev);
}
$this->html = preg_replace("/(<!-- )+/", "<!-- ", $this->html);
$this->html = preg_replace("/( -->)+/", " -->", $this->html);
return $this->html;
}
public function mergeCss($wpfc, $prev)
{
if (count($prev["value"]) > 0) {
$name = "";
foreach ($prev["value"] as $prevKey => $prevValue) {
if ($prevKey == count($prev["value"]) - 1) {
$name = md5($prev["name"]);
$cachFilePath = WPFC_WP_CONTENT_DIR . "/cache/wpfc-minified/" . $name;
$prev["content"] = $this->fixRules($prev["content"]);
if (isset($this->wpfc->options->wpFastestCacheMinifyCss) && $this->wpfc->options->wpFastestCacheMinifyCss) {
$prev["content"] = $this->_process($prev["content"]);
}
if (isset($this->wpfc->options->wpFastestCacheMinifyCssPowerFul) && $this->wpfc->options->wpFastestCacheMinifyCssPowerFul) {
$powerful_html = new WpFastestCachePowerfulHtml();
$prev["content"] = $powerful_html->minify_css($prev["content"]);
}
/*
The css files are saved in the previous function.
If only one css file is in the array, there is need to save again.
*/
if (count($prev["value"]) == 1) {
if ($cssFiles = @scandir($cachFilePath, 1)) {
file_put_contents($cachFilePath . "/" . $cssFiles[0], $prev["content"]);
}
} else {
if (!is_dir($cachFilePath)) {
$wpfc->createFolder($cachFilePath, $prev["content"], "css", time());
}
}
if ($cssFiles = @scandir($cachFilePath, 1)) {
$prefixLink = str_replace(array("http:", "https:"), "", content_url());
$newLink = "<link rel='stylesheet' href='" . $prefixLink . "/cache/wpfc-minified/" . $name . "/" . $cssFiles[0] . "' type='text/css' media='all' />";
$this->html = $wpfc->replaceLink($prevValue, "<!-- " . $prevValue . " -->" . "\n" . $newLink, $this->html);
}
} else {
$name .= $prevValue;
$this->html = $wpfc->replaceLink($prevValue, "<!-- " . $prevValue . " -->", $this->html);
}
}
}
}
