forked from Adleraci/adlerka.top
Bruno Rybársky
1c9f5cf3c0
add additional clarification to some functions, add addNewsComment function and API, currently untested and not implemented in the client, fix a bunch of stuff that PHPStorm pointed out
104 lines
3.7 KiB
PHP
104 lines
3.7 KiB
PHP
<?php
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/**
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* Processes an HTML string to inline all linked stylesheets by replacing <link> tags
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* with corresponding <style> tags containing the CSS content.
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* Might be broken, currently disabled in the config
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*
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* @param string $inputString The HTML content containing <link> tags to stylesheets.
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* @return string The modified HTML content with stylesheets inlined within <style> tags.
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*/
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function inlineLocalStylesFromHref(string $inputString): string
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{
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$pattern = '/<link[^>]*?\srel=["\']?stylesheet["\'].*?\shref=["\']?\/(.*?)["\'][^>]*?>/i';
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return preg_replace_callback($pattern, function($match) {
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$href = $match[1];
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$cssFilePath = $_SERVER['DOCUMENT_ROOT'] . '/' . $href;
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$cssContent = file_get_contents($cssFilePath);
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$cssDir = dirname($cssFilePath);
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$cssContent = preg_replace_callback('/url\(["\']?(\/.*?|.*?)["\']?\)/i', function($urlMatch) use ($cssDir) {
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$url = $urlMatch[1];
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// Check if the URL starts with any protocol or //
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if (!preg_match('/^([a-zA-Z]+:)?\/\//', $url)) {
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$absolutePath = $cssDir . '/' . $url;
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$relativePath = ltrim(substr($absolutePath, strlen($_SERVER['DOCUMENT_ROOT'])), '/');
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return 'url("' . $relativePath . '")';
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} else {
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// If the URL starts with a protocol or //, leave it unchanged
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return 'url("' . $url . '")';
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}
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}, $cssContent);
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// Minify the CSS content
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$cssContent = minifyCss($cssContent);
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return "<style>$cssContent</style>";
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}, $inputString);
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}
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/**
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* Processes an HTML string to inline all external JavaScript files by replacing <script src="..."> tags
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* with <script> tags containing the JavaScript content.
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* Might be broken, currently disabled in the config
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*
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* @param string $inputString The HTML content containing <script src=""> tags.
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* @return string The modified HTML content with external scripts inlined within <script> tags.
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*/
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function inlineScriptFromSrc(string $inputString): string
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{
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$pattern = '/<script.*?src=["\']\/(.*?)["\'].*?>\s*<\/script>/i';
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return preg_replace_callback($pattern, function($match) {
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$src = $match[1];
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$jsContent = file_get_contents($_SERVER['DOCUMENT_ROOT'] . '/' . $src);
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// Minify the JavaScript content
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$jsContent = minifyJs($jsContent);
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return "<script>$jsContent</script>";
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}, $inputString);
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}
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/**
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* Minifies CSS content by removing comments, unnecessary whitespaces, semicolons, and optimizing other aspects of the stylesheet.
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* Might be broken, currently disabled in the config
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*
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* @param string $css The original CSS content.
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* @return string The minified CSS content.
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*/
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function minifyCss(string $css): string
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{
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// Remove comments
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$css = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $css);
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// Remove whitespace
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$css = preg_replace('/\s+/', ' ', $css);
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// Remove unnecessary semicolons
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$css = str_replace(';}', '}', $css);
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// Remove spaces around colons
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$css = str_replace(': ', ':', $css);
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// Remove spaces around commas
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$css = str_replace(', ', ',', $css);
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return trim($css);
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}
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/**
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* Minifies JavaScript content by removing comments, unnecessary whitespaces, and optimizing spaces around operators.
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* Might be broken, currently disabled in the config
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*
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* @param string $js The original JavaScript content.
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* @return string The minified JavaScript content.
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*/
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function minifyJs(string $js): string
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{
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// Remove newlines and tabs
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$js = str_replace("\t", '', $js);
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// Remove spaces around operators
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$js = preg_replace('~\s*([=+\-*/])\s*~', '$1', $js);
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return trim($js);
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} |