feat: add a power html rewriter to customized my old pages

www/.content.EZtzwPjb/includes/hosted_by_franciliens.html

@@ -0,0 +1,8 @@
+<div id="hosted-on" class="widget widget_text">
+  <h5>Auto-hébergé sur mon NAS</h5>
+  <div class="textwidget">
+    <div style="text-align: center">
+      Ce blog est hébergé à la maison avec de l'Internet fournit par <a href="https://www.franciliens.net">Franciliens.net</a>
+    </div>
+  </div>
+</div>

www/.content.EZtzwPjb/includes/warning_new_blog.php

@@ -0,0 +1,4 @@
+<div style="background-color: orange;border-radius: 6px;font-weight: bold;margin-bottom: 10px;" class="container">
+  Ceci est la version legacy de mon blog si vous voulez voir les nouveaux articles et et savoir pourquoi c'est par
+  <a href="/new">ICI</a>
+</div>

www/index.php

@@ -111,6 +111,24 @@ const ARCHIVARIX_INCLUDE_CUSTOM = array(
     'REGEX'     => 0,
     'POSITION'  => -1,
   ],
+
+  // remove twitter widget in the right column on all the pages
+  [
+    'OPERATION' => 'REMOVE',
+    'XPATH' => '//*[@id="twitter-2"]',
+  ],
+
+  [
+    'OPERATION' => 'REPLACE',
+    'XPATH' => '//*[@id="text-6"]',
+    'FILE' => 'hosted_by_franciliens.html',
+  ],
+
+  [
+    'OPERATION' => 'APPEND',
+    'XPATH' => '//nav[contains(@class, "navbar")]',
+    'FILE' => 'warning_new_blog.php',
+  ],
 );
 
 /**
@@ -368,7 +386,7 @@ function prepareContent( $file, $sourcePath )
   $content = file_get_contents( $file );
 
   foreach ( $LOADER['ARCHIVARIX_INCLUDE_CUSTOM'] as $includeCustom ) {
-    if ( $includeCustom['FILE'] ) {
+    if ( $includeCustom['FILE'] && $includeCustom['KEYPHRASE'] ) {
       global $includeRule;
       $includeRule = $includeCustom;
       ob_start();
@@ -391,8 +409,36 @@ function prepareContent( $file, $sourcePath )
       }
 
       $content = preg_replace( '~' . $includeCustom['KEYPHRASE'] . '~is', $includedContent, $content, $includeCustom['LIMIT'] );
+    } else if ( $includeCustom['OPERATION'] && $includeCustom['XPATH'] ) {
+      $doc = new DOMDocument();
+      $doc->loadHTML($content);
+      $xpath = new DOMXpath($doc);
+      $elementsToChange = $xpath->query($includeCustom['XPATH']);
+
+      foreach ( $elementsToChange as $elementToChange ) {
+        switch ( $includeCustom['OPERATION'] ) {
+          case 'APPEND':
+          case 'REPLACE' :
+            $fragment = $doc->createDocumentFragment();
+            ob_start();
+            require($sourcePath . DIRECTORY_SEPARATOR . 'includes' . DIRECTORY_SEPARATOR . $includeCustom['FILE']);
+            $fragment->appendXML(ob_get_clean());
+            if ($includeCustom['OPERATION'] === 'APPEND') {
+              $elementToChange->append($fragment->firstChild);
+            } else {
+              $elementToChange->replaceWith($fragment->firstChild);
+            }
+            break;
+          case 'REMOVE' :
+            $elementToChange->remove();
+            break;
         }
       }
+
+      $content = $doc->saveHTML();
+    }
+  }
+
   if ( function_exists( 'mb_strlen' ) ) {
     header( 'Content-Length: ' . mb_strlen( $content, '8bit' ), true );
   }