Minor cleanup: bugs found by Psalm static checker

IEMailTemplate: The public interface to addBodyListItem also needs to include the new plainIndent parameter.
IMipPlugin: Fixes an undefined variable for events that do not have DTEND.  Also use explicit string conversion for parameters and properties in several places.

Signed-off-by: Brad Rubenstein <[email protected]>

Author: brad2014

apps/dav/lib/CalDAV/Schedule/IMipPlugin.php

@@ -3,7 +3,6 @@
  * @copyright Copyright (c) 2016, ownCloud, Inc.
  * @copyright Copyright (c) 2017, Georg Ehrke
  *
- * @author brad2014 <[email protected]>
  * @author Brad Rubenstein <[email protected]>
  * @author Christoph Wurst <[email protected]>
  * @author Georg Ehrke <[email protected]>
@@ -242,8 +241,7 @@ public function schedule(Message $iTipMessage) {
 
 		$summary = ((string) $summary !== '') ? (string) $summary : $l10n->t('Untitled event');
 
-		$this->addSubjectAndHeading($template, $l10n, $method, $summary,
-			$meetingAttendeeName, $meetingInviteeName);
+		$this->addSubjectAndHeading($template, $l10n, $method, $summary);
 		$this->addBulletList($template, $l10n, $vevent);
 
 
@@ -408,13 +406,13 @@ private function generateWhenString(IL10N $l10n, VEvent $vevent) {
 		} elseif (isset($vevent->DURATION)) {
 			$isFloating = $vevent->DTSTART->isFloating();
 			$dtend = clone $vevent->DTSTART;
-			$endDateTime = $end->getDateTime();
+			$endDateTime = $dtend->getDateTime();
 			$endDateTime = $endDateTime->add(DateTimeParser::parse($vevent->DURATION->getValue()));
 			$dtend->setDateTime($endDateTime, $isFloating);
 		} elseif (!$vevent->DTSTART->hasTime()) {
 			$isFloating = $vevent->DTSTART->isFloating();
 			$dtend = clone $vevent->DTSTART;
-			$endDateTime = $end->getDateTime();
+			$endDateTime = $dtend->getDateTime();
 			$endDateTime = $endDateTime->modify('+1 day');
 			$dtend->setDateTime($endDateTime, $isFloating);
 		} else {
@@ -539,19 +537,20 @@ private function addBulletList(IEMailTemplate $template, IL10N $l10n, $vevent) {
 				$this->getAbsoluteImagePath('caldav/location.svg'),'','',self::IMIP_INDENT);
 		}
 		if ($vevent->URL) {
+			$url = $vevent->URL->getValue();
 			$template->addBodyListItem(sprintf('<a href="%s">%s</a>',
-					htmlspecialchars($vevent->URL),
-					htmlspecialchars($vevent->URL)),
+					htmlspecialchars($url),
+					htmlspecialchars($url)),
 				$l10n->t('Link:'),
 				$this->getAbsoluteImagePath('caldav/link.svg'),
-				$vevent->URL,'',self::IMIP_INDENT);
+				$url,'',self::IMIP_INDENT);
 		}
 
 		$this->addAttendees($template, $l10n, $vevent);
 
 		/* Put description last, like an email body, since it can be arbitrarily long */
 		if ($vevent->DESCRIPTION) {
-			$template->addBodyListItem($vevent->DESCRIPTION, $l10n->t('Description:'),
+			$template->addBodyListItem($vevent->DESCRIPTION->getValue(), $l10n->t('Description:'),
 				$this->getAbsoluteImagePath('caldav/description.svg'),'','',self::IMIP_INDENT);
 		}
 	}
@@ -579,18 +578,23 @@ private function addAttendees(IEMailTemplate $template, IL10N $l10n, VEvent $vev
 		}
 
 		if (isset($vevent->ORGANIZER)) {
+			/** @var Property\ICalendar\CalAddress $organizer */
 			$organizer = $vevent->ORGANIZER;
 			$organizerURI = $organizer->getNormalizedValue();
 			list($scheme,$organizerEmail) = explode(':',$organizerURI,2); # strip off scheme mailto:
+			/** @var string|null $organizerName */
 			$organizerName = isset($organizer['CN']) ? $organizer['CN'] : null;
 			$organizerHTML = sprintf('<a href="%s">%s</a>',
 				htmlspecialchars($organizerURI),
 				htmlspecialchars($organizerName ?: $organizerEmail));
 			$organizerText = sprintf('%s <%s>', $organizerName, $organizerEmail);
-			if (isset($organizer['PARTSTAT'])
-				&& strcasecmp($organizer['PARTSTAT'], 'ACCEPTED') === 0) {
-				$organizerHTML .= ' ✔︎';
-				$organizerText .= ' ✔︎';
+			if (isset($organizer['PARTSTAT'])) {
+				/** @var Parameter $partstat */
+				$partstat = $organizer['PARTSTAT'];
+				if (strcasecmp($partstat->getValue(), 'ACCEPTED') === 0) {
+					$organizerHTML .= ' ✔︎';
+					$organizerText .= ' ✔︎';
+				}
 			}
 			$template->addBodyListItem($organizerHTML, $l10n->t('Organizer:'),
 				$this->getAbsoluteImagePath('caldav/organizer.svg'),

lib/private/Mail/EMailTemplate.php

@@ -447,21 +447,21 @@ public function addBodyText(string $text, $plainText = '') {
 	 * @param string $metaInfo Note: When $plainMetaInfo falls back to this, HTML is automatically escaped in the HTML email
 	 * @param string $icon Absolute path, must be 16*16 pixels
 	 * @param string|bool $plainText Text that is used in the plain text email
-	 *   if empty the $text is used, if false none will be used
+	 *   if empty or true the $text is used, if false none will be used
 	 * @param string|bool $plainMetaInfo Meta info that is used in the plain text email
-	 *   if empty the $metaInfo is used, if false none will be used
+	 *   if empty or true the $metaInfo is used, if false none will be used
 	 * @param integer plainIndent If > 0, Indent plainText by this amount.
 	 * @since 12.0.0
 	 */
 	public function addBodyListItem(string $text, string $metaInfo = '', string $icon = '', $plainText = '', $plainMetaInfo = '', $plainIndent = 0) {
 		$this->ensureBodyListOpened();
 
-		if ($plainText === '') {
+		if ($plainText === '' || $plainText === true) {
 			$plainText = $text;
 			$text = htmlspecialchars($text);
 			$text = str_replace("\n", "<br/>", $text); // convert newlines to HTML breaks
 		}
-		if ($plainMetaInfo === '') {
+		if ($plainMetaInfo === '' || $plainMetaInfo === true) {
 			$plainMetaInfo = $metaInfo;
 			$metaInfo = htmlspecialchars($metaInfo);
 		}
@@ -494,8 +494,10 @@ public function addBodyListItem(string $text, string $metaInfo = '', string $ico
 				 * "plainIndent". Multilines after the first are indented plainIndent+1
 				 * (to account for space after label).  Fixes: #12391
 				 */
+				/** @var string $label */
+				$label = ( $plainMetaInfo !== false )? $plainMetaInfo : '';
 				$this->plainBody .= sprintf("%${plainIndent}s %s\n",
-					$plainMetaInfo,
+					$label,
 					str_replace("\n", "\n" . str_repeat(' ', $plainIndent+1), $plainText));
 			}
 		}

lib/public/Mail/IEMailTemplate.php

@@ -106,9 +106,10 @@ public function addBodyText(string $text, $plainText = '');
 	 *   if empty the $text is used, if false none will be used
 	 * @param string|bool $plainMetaInfo Meta info that is used in the plain text email
 	 *   if empty the $metaInfo is used, if false none will be used
+   * @param integer plainIndent If > 0, Indent plainText by this amount.
 	 * @since 12.0.0
 	 */
-	public function addBodyListItem(string $text, string $metaInfo = '', string $icon = '', $plainText = '', $plainMetaInfo = '');
+	public function addBodyListItem(string $text, string $metaInfo = '', string $icon = '', $plainText = '', $plainMetaInfo = '', $plainIndent = 0);
 
 	/**
 	 * Adds a button group of two buttons to the body of the email