Fix #3852: Error when OpenSSL extension is not installed

protected/humhub/components/mail/Message.php

@@ -16,7 +16,7 @@ namespace humhub\components\mail;
  */
 class Message extends \yii\swiftmailer\Message
 {
-    public function setSmimeSigner($signingCertificatePath, $signingPrivateKeyPath, $signingOptions = PKCS7_DETACHED, $extraCerts = null)
+    public function setSmimeSigner($signingCertificatePath, $signingPrivateKeyPath, $signingOptions = 64, $extraCerts = null)
 	{
 		$signer = \Swift_Signers_SMimeSigner::newInstance();
 

protected/humhub/docs/CHANGELOG.md

@@ -1,6 +1,12 @@
 HumHub Change Log
 =================
 
+1.4.1 (Unreleased)
+------------------
+
+- Fix #3852: Error when OpenSSL extension is not installed
+
+
 
 1.4.0 (February 4, 2020)
 ------------------------

protected/humhub/libs/SelfTest.php

@@ -269,6 +269,22 @@ class SelfTest
             ];
         }
 
+        // Checks OpenSSL Extension
+        $title = 'PHP - OpenSSL Extension';
+
+        if (function_exists('openssl_encrypt')) {
+            $checks[] = [
+                'title' => Yii::t('base', $title),
+                'state' => 'OK'
+            ];
+        } else {
+            $checks[] = [
+                'title' => Yii::t('base', $title),
+                'state' => 'WARNING',
+                'hint' => 'Optional - Install OpenSSL Extension for e-mail S/MIME support.'
+            ];
+        }
+
         // Checks LDAP Extension
         $title = 'LDAP Support';
 
@@ -285,6 +301,7 @@ class SelfTest
             ];
         }
 
+
         // Checks APC(u) Extension
         $title = 'PHP - APC(u) Support';