src/Support/HtmlCleaner.php

@@ -9,7 +9,7 @@ use DOMElement;
 class HtmlCleaner
 {
     /**
-     * Render a DOM node into safe HTML, preserving allowed block and inline tags.
+     * Renders a DOM node into safe HTML, preserving only allowed tags.
      */
     public static function renderNode(DOMNode $node, array $allowedTags, array $allowedInline, string $parentTag = ''): ?string
     {
@@ -23,7 +23,6 @@ class HtmlCleaner
 
         $tag = $node->nodeName;
 
-        // Special case: handle <br> within <p>
         if ($tag === 'br') {
             if ($parentTag === 'p') {
                 $prev = $node->previousSibling;
@@ -36,13 +35,11 @@ class HtmlCleaner
                     return '<br>';
                 }
             }
-
-            // Skip all other <br>
             return null;
         }
 
-        // Recursively render children
         $inner = '';
+
         foreach ($node->childNodes as $child) {
             $rendered = self::renderNode($child, $allowedTags, $allowedInline, $tag);
             if ($rendered !== null) {
@@ -50,7 +47,6 @@ class HtmlCleaner
             }
         }
 
-        // Handle block tags
         if (in_array($tag, $allowedTags)) {
             if ($tag === 'p') {
                 $html = $node->C14N();
@@ -58,31 +54,24 @@ class HtmlCleaner
                 $class = $isItalic ? ' class="italic"' : '';
                 return "<p{$class}>" . trim($inner) . "</p>";
             }
-
             return "<{$tag}>" . trim($inner) . "</{$tag}>";
         }
 
-        // Handle inline tags
         if (in_array($tag, $allowedInline)) {
             return "<{$tag}>{$inner}</{$tag}>";
         }
 
-        // Unknown tags are ignored but their content is preserved
         return $inner;
     }
 
     /**
-     * Clean a raw HTML string: remove unwanted tags, empty elements, garbage phrases, and excessive whitespace.
+     * Cleans a raw HTML string: removes unwanted content, empty tags, and excess whitespace.
      */
     public static function clean(string $html): string
     {
-        // Remove first <h1>
         $html = preg_replace('/<h1\b[^>]*>.*?<\/h1>/i', '', $html, 1);
-
-        // Remove empty tags like <i></i>, <span></span>
         $html = preg_replace('/<(\w+)[^>]*>\s*<\/\1>/', '', $html);
 
-        // Remove specific garbage strings
         $unwantedStrings = [
             'Report this content',
             '<p><strong>Taggar:</strong></p>',
@@ -92,16 +81,12 @@ class HtmlCleaner
             $html = str_replace($str, '', $html);
         }
 
-        // Remove localized date lines like: fre, jul 04, 2025 09:55 CET
         $html = preg_replace('/\b[a-z]{3},\s[a-z]{3}\s\d{2},\s\d{4}\s\d{2}:\d{2}\sCET\b/i', '', $html);
+        $html = str_replace(["\u{A0}", "\t", "\r"], ' ', $html);
+        $html = preg_replace('/[ ]{2,}/', ' ', $html);
+        $html = preg_replace("/(\n\s*){2,}/", "\n", $html);
+        $html = str_replace(['  ', ' \n'], '', $html);
 
-        // Normalize whitespace
-        $html = str_replace(["\u{A0}", "\t", "\r"], ' ', $html);          // Remove non-breaking spaces and tabs
-        $html = preg_replace('/[ ]{2,}/', ' ', $html);                    // Collapse double spaces
-        $html = preg_replace("/(\n\s*){2,}/", "\n", $html);               // Collapse multiple newlines
-        $html = str_replace(['  ', ' \n'], '', $html);                    // Additional spacing clean
-        $html = trim($html);
-
-        return $html;
+        return trim($html);
     }
 }