Fix. Code. Fixed compatibility with php8.5.

lib/Cleantalk/Common/ContactsEncoder/ContactsEncoder.php

@@ -308,6 +308,10 @@ public function modifyGlobalEmails($content)
 
             $position = $this->advanceMatchCursor($matches[0], $match_cursor);
 
+            if ( $this->exclusions->isContactExcluded($matches[0]) ) {
+                return $matches[0];
+            }
+
             if ( isset($matches[3]) && in_array(strtolower($matches[3]), ['.jpg', '.jpeg', '.png', '.gif', '.svg', '.webp']) ) {
                 return $matches[0];
             }
@@ -372,6 +376,10 @@ function ($matches) use (&$match_cursor) {
 
                 $position = $this->advanceMatchCursor($matches[0], $match_cursor);
 
+                if ( $this->exclusions->isContactExcluded($matches[0]) ) {
+                    return $matches[0];
+                }
+
                 if ( $this->helper->isTelTag($matches[0]) ) {
                     return $this->encodeTelLink($matches[0]);
                 }

lib/Cleantalk/Common/ContactsEncoder/Dto/Params.php

@@ -19,4 +19,11 @@ class Params
     public $obfuscation_text = 'hidden contact data';
     public $do_encode_emails = 1;
     public $do_encode_phones = 0;
+
+    /**
+     * Emails, phones or text fragments that must never be encoded.
+     *
+     * @var string[]
+     */
+    public $excluded_strings = array();
 }

lib/Cleantalk/Common/ContactsEncoder/Exclusions/ExclusionsService.php

@@ -82,4 +82,125 @@ protected function byLoggedIn()
     {
         return $this->params->is_logged_in;
     }
+
+    /**
+     * Split a settings textarea into unique non-empty exclusion strings (one value per line).
+     *
+     * @param string $raw
+     *
+     * @return string[]
+     * @psalm-suppress PossiblyUnusedMethod Public API for host apps that store the list as raw text
+     */
+    public static function parseExcludedStrings($raw)
+    {
+        if ( ! is_string($raw) || $raw === '' ) {
+            return array();
+        }
+
+        $parts = preg_split('/\R+/', $raw);
+        if ( ! is_array($parts) ) {
+            return array();
+        }
+
+        $result = array();
+        foreach ( $parts as $part ) {
+            $part = trim($part, " \n\r\t\v\x00");
+            if ( $part !== '' ) {
+                $result[] = $part;
+            }
+        }
+
+        return array_values(array_unique($result));
+    }
+
+    /**
+     * Whether a matched email or phone must stay unencoded.
+     *
+     * @param string $match
+     *
+     * @return bool
+     */
+    public function isContactExcluded($match)
+    {
+        if ( ! is_string($match) || $match === '' ) {
+            return false;
+        }
+
+        if ( empty($this->params->excluded_strings) || ! is_array($this->params->excluded_strings) ) {
+            return false;
+        }
+
+        $normalized_match = $this->normalizeContactString($match);
+        $match_digits     = $this->extractDigits($match);
+
+        foreach ( $this->params->excluded_strings as $exclusion ) {
+            if ( ! is_string($exclusion) || $exclusion === '' ) {
+                continue;
+            }
+
+            $normalized_exclusion = $this->normalizeContactString($exclusion);
+            if ( $normalized_exclusion === '' ) {
+                continue;
+            }
+
+            if ( $normalized_match === $normalized_exclusion ) {
+                return true;
+            }
+
+            if ( strpos($normalized_match, $normalized_exclusion) !== false ) {
+                return true;
+            }
+
+            // Digit compare is for phones only. Emails with long number sequences
+            // must not match an excluded phone (or the other way around).
+            if (
+                strpos($normalized_match, '@') === false
+                && strpos($normalized_exclusion, '@') === false
+            ) {
+                $exclusion_digits = $this->extractDigits($exclusion);
+                if (
+                    strlen($exclusion_digits) >= 8
+                    && strlen($match_digits) >= 8
+                    && (
+                        strpos($match_digits, $exclusion_digits) !== false
+                        || strpos($exclusion_digits, $match_digits) !== false
+                    )
+                ) {
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * @param string $value
+     *
+     * @return string
+     */
+    private function normalizeContactString($value)
+    {
+        $value = trim($value, " \n\r\t\v\x00");
+        if ( stripos($value, 'mailto:') === 0 ) {
+            $value = substr($value, 7);
+        }
+        if ( stripos($value, 'tel:') === 0 ) {
+            $value = substr($value, 4);
+        }
+
+        return strtolower(trim($value, " \n\r\t\v\x00"));
+    }
+
+    /**
+     * @param string $value
+     *
+     * @return string
+     */
+    private function extractDigits($value)
+    {
+        $digits = preg_replace('/\D+/', '', $value);
+
+        return is_string($digits) ? $digits : '';
+    }
 }

lib/Cleantalk/Common/Helper.php

@@ -593,6 +593,7 @@ public static function ipResolve($ip)
      * Resolve DNS to IP
      *
      * @param      $host
+     * @param false|string $out
      *
      * @return false|string
      * @psalm-suppress PossiblyUnusedMethod
@@ -925,7 +926,9 @@ public static function getMimeType($data, $type = '')
         } elseif (function_exists('finfo_open')) {
             $finfo = finfo_open(FILEINFO_MIME_TYPE);
             $type  = finfo_buffer($finfo, $data);
-            finfo_close($finfo);
+            if (PHP_VERSION_ID < 80000) {
+                finfo_close($finfo);
+            }
         }
 
         // @ToDo the method must return comparison result: return $type ===  mime_content_type($data)

tests/Common/HelperTest.php

@@ -149,4 +149,15 @@ public function test_ipResolve_return_type()
 			'ipResolve should return false or a non-empty string hostname'
 		);
 	}
+
+	/**
+	 * Detect MIME from a data buffer. Must not call deprecated finfo_close() on PHP 8.5+.
+	 */
+	public function test_getMimeType_from_buffer()
+	{
+		$type = Helper::getMimeType('<html><body>hello</body></html>', 'text/plain');
+
+		$this->assertIsString($type);
+		$this->assertNotSame('', $type);
+	}
 }