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wp-content/plugins/mailpoet/lib/WP/Emoji.php

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+<?php // phpcs:ignore SlevomatCodingStandard.TypeHints.DeclareStrictTypes.DeclareStrictTypesMissing
+
+namespace MailPoet\WP;
+
+if (!defined('ABSPATH')) exit;
+
+
+use MailPoet\DI\ContainerWrapper;
+use MailPoet\Form\FormsRepository;
+use MailPoet\Newsletter\Sending\SendingQueuesRepository;
+use MailPoet\WP\Functions as WPFunctions;
+
+class Emoji {
+  /** @var WPFunctions */
+  private $wp;
+
+  public function __construct(
+    WPFunctions $wp = null
+  ) {
+    if ($wp === null) {
+      $wp = new WPFunctions();
+    }
+    $this->wp = $wp;
+  }
+
+  public function encodeEmojisInBody($newsletterRenderedBody) {
+    if (is_array($newsletterRenderedBody)) {
+      return array_map([$this, 'encodeRenderedBodyForUTF8Column'], $newsletterRenderedBody);
+    }
+    return $this->encodeRenderedBodyForUTF8Column($newsletterRenderedBody);
+  }
+
+  public function decodeEmojisInBody($newsletterRenderedBody) {
+    if (is_array($newsletterRenderedBody)) {
+      return array_map([$this, 'decodeEntities'], $newsletterRenderedBody);
+    }
+    return $this->decodeEntities($newsletterRenderedBody);
+  }
+
+  public function sanitizeEmojisInFormBody(array $body): array {
+    $formsTableName = ContainerWrapper::getInstance()->get(FormsRepository::class)->getTableName();
+    $bodyJson = json_encode($body, JSON_UNESCAPED_UNICODE);
+    $fixedJson = $this->encodeForUTF8Column($formsTableName, 'body', $bodyJson);
+    return json_decode($fixedJson, true);
+  }
+
+  private function encodeRenderedBodyForUTF8Column($value) {
+    $sendingQueuesTableName = ContainerWrapper::getInstance()->get(SendingQueuesRepository::class)->getTableName();
+    return $this->encodeForUTF8Column(
+      $sendingQueuesTableName,
+      'newsletter_rendered_body',
+      $value
+    );
+  }
+
+  public function encodeForUTF8Column($table, $field, $value) {
+    global $wpdb;
+    $charset = $wpdb->get_col_charset($table, $field);
+    // utf8 doesn't support emojis, so we need to encode them
+    // utf8 was an alias for utf8mb3, but it was dropped in MySQL 8.0.28 so we need to check both
+    if ($charset === 'utf8' || $charset === 'utf8mb3') {
+      $value = $this->wp->wpEncodeEmoji($value);
+    }
+    return $value;
+  }
+
+  public function decodeEntities($content) {
+    // Based on WPFunctions::get()->wpStaticizeEmoji()
+
+    // Loosely match the Emoji Unicode range.
+    $regex = '/(&#x[2-3][0-9a-f]{3};|&#x1f[1-6][0-9a-f]{2};)/';
+
+    $matches = [];
+    if (preg_match_all($regex, $content, $matches)) {
+      if (!empty($matches[1])) {
+        foreach ($matches[1] as $emoji) {
+          $entity = html_entity_decode($emoji, ENT_COMPAT, 'UTF-8');
+          $content = str_replace($emoji, $entity, $content);
+        }
+      }
+    }
+
+    return $content;
+  }
+}