[BUGFIX] Use default from address as to address to prevent crashes, Add the...

[BUGFIX] Use default from address as to address to prevent crashes, Add the date for the auto-prefilled fields for send forms

Classes/Service/MailTemplateService.php

@@ -44,7 +44,6 @@ use TYPO3\CMS\Extbase\Domain\Model\FileReference;
 use TYPO3\CMS\Extbase\Object\ObjectManager;
 use TYPO3\CMS\Extbase\Utility\LocalizationUtility;
 use TYPO3\CMS\Fluid\View\StandaloneView;
-use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
 
 /**
  * MailTemplateService
@@ -980,6 +979,8 @@ class MailTemplateService {
 			} elseif (\is_bool($value)) {
 				$valueAsString = $value ? 'true' : 'false';
 				$allMarker .= $key . ': ' . $valueAsString . PHP_EOL;
+			} elseif ($value instanceof DateTime) {
+				$allMarker .= $key . ': ' . $value->format('d.m.Y') . PHP_EOL;
 			} elseif (\is_object($value)) {
 				if (\method_exists($value, '__toString')) {
 					$allMarker .= $key . ': ' . $value->__toString() . PHP_EOL;
@@ -1014,6 +1015,8 @@ class MailTemplateService {
 			} elseif (\is_bool($value)) {
 				$valueAsString = $value ? 'true' : 'false';
 				$allMarker .= '<tr><th>' . $key . ' </th><td> ' . $valueAsString . '</td></tr>';
+			} elseif ($value instanceof DateTime) {
+				$allMarker .= '<tr><th>' . $key . ' </th><td> ' . $value->format('d.m.Y') . '</td></tr>';
 			} elseif (\is_object($value)) {
 				if (\method_exists($value, '__toString')) {
 					$allMarker .= '<tr><th>' . $key . ' </th><td> ' . $value->__toString() . '</td></tr>';
@@ -1242,7 +1245,16 @@ class MailTemplateService {
 			$toAddresses = $addressesArray;
 		}
 
-		$this->mailMessage->setTo($toAddresses);
+		if ($toAddresses === '') {
+			if (\filter_var($GLOBALS['TYPO3_CONF_VARS']['MAIL']['defaultMailFromAddress'], FILTER_VALIDATE_EMAIL)) {
+				$this->mailMessage->setTo($GLOBALS['TYPO3_CONF_VARS']['MAIL']['defaultMailFromAddress']);
+			} else {
+				return FALSE;
+			}
+		} else {
+			$this->mailMessage->setTo($toAddresses);
+		}
+
 		$this->mailMessage->setFrom($mailToSend->getFromAddress(), $mailToSend->getFromName());
 		$this->mailMessage->setSubject($mailToSend->getMailSubject());
 		if ($mailToSend->getBccAddresses()) {