Fix get_thumbnails null exception (#1933)

app/Models/Feed.php

@@ -356,49 +356,53 @@ class FreshRSS_Feed extends Minz_Model {
 
 			$content = html_only_entity_decode($item->get_content());
 
-			$elinks = array();
-			foreach ($item->get_enclosures() as $enclosure) {
-				$elink = $enclosure->get_link();
-				if ($elink != '' && empty($elinks[$elink])) {
-					$content .= '<div class="enclosure">';
-
-					if ($enclosure->get_title() != '') {
-						$content .= '<p class="enclosure-title">' . $enclosure->get_title() . '</p>';
-					}
+			if ($item->get_enclosures() != null) {
+				$elinks = array();
+				foreach ($item->get_enclosures() as $enclosure) {
+					$elink = $enclosure->get_link();
+					if ($elink != '' && empty($elinks[$elink])) {
+						$content .= '<div class="enclosure">';
+
+						if ($enclosure->get_title() != '') {
+							$content .= '<p class="enclosure-title">' . $enclosure->get_title() . '</p>';
+						}
 
-					$enclosureContent = '';
-					$elinks[$elink] = true;
-					$mime = strtolower($enclosure->get_type());
-					$medium = strtolower($enclosure->get_medium());
-					if ($medium === 'image' || strpos($mime, 'image/') === 0) {
-						$enclosureContent .= '<p class="enclosure-content"><img src="' . $elink . '" alt="" /></p>';
-					} elseif ($medium === 'audio' || strpos($mime, 'audio/') === 0) {
-						$enclosureContent .= '<p class="enclosure-content"><audio preload="none" src="' . $elink
-							. '" controls="controls"></audio> <a download="" href="' . $elink . '">💾</a></p>';
-					} elseif ($medium === 'video' || strpos($mime, 'video/') === 0) {
-						$enclosureContent .= '<p class="enclosure-content"><video preload="none" src="' . $elink
-							. '" controls="controls"></video> <a download="" href="' . $elink . '">💾</a></p>';
-					} elseif ($medium != '' || strpos($mime, 'application/') === 0 || strpos($mime, 'text/') === 0) {
-						$enclosureContent .= '<p class="enclosure-content"><a download="" href="' . $elink . '">💾</a></p>';
-					} else {
-						unset($elinks[$elink]);
-					}
+						$enclosureContent = '';
+						$elinks[$elink] = true;
+						$mime = strtolower($enclosure->get_type());
+						$medium = strtolower($enclosure->get_medium());
+						if ($medium === 'image' || strpos($mime, 'image/') === 0) {
+							$enclosureContent .= '<p class="enclosure-content"><img src="' . $elink . '" alt="" /></p>';
+						} elseif ($medium === 'audio' || strpos($mime, 'audio/') === 0) {
+							$enclosureContent .= '<p class="enclosure-content"><audio preload="none" src="' . $elink
+								. '" controls="controls"></audio> <a download="" href="' . $elink . '">💾</a></p>';
+						} elseif ($medium === 'video' || strpos($mime, 'video/') === 0) {
+							$enclosureContent .= '<p class="enclosure-content"><video preload="none" src="' . $elink
+								. '" controls="controls"></video> <a download="" href="' . $elink . '">💾</a></p>';
+						} elseif ($medium != '' || strpos($mime, 'application/') === 0 || strpos($mime, 'text/') === 0) {
+							$enclosureContent .= '<p class="enclosure-content"><a download="" href="' . $elink . '">💾</a></p>';
+						} else {
+							unset($elinks[$elink]);
+						}
 
-					$thumbnailContent = '';
-					foreach ($enclosure->get_thumbnails() as $thumbnail) {
-						if (empty($elinks[$thumbnail])) {
-							$elinks[$thumbnail] = true;
-							$thumbnailContent .= '<p><img class="enclosure-thumbnail" src="' . $thumbnail . '" alt="" /></p>';
+						$thumbnailContent = '';
+						if ($enclosure->get_thumbnails() != null) {
+							foreach ($enclosure->get_thumbnails() as $thumbnail) {
+								if (empty($elinks[$thumbnail])) {
+									$elinks[$thumbnail] = true;
+									$thumbnailContent .= '<p><img class="enclosure-thumbnail" src="' . $thumbnail . '" alt="" /></p>';
+								}
+							}
 						}
-					}
 
-					$content .= $thumbnailContent;
-					$content .= $enclosureContent;
+						$content .= $thumbnailContent;
+						$content .= $enclosureContent;
 
-					if ($enclosure->get_description() != '') {
-						$content .= '<pre class="enclosure-description">' . $enclosure->get_description() . '</pre>';
+						if ($enclosure->get_description() != '') {
+							$content .= '<pre class="enclosure-description">' . $enclosure->get_description() . '</pre>';
+						}
+						$content .= "</div>\n";
 					}
-					$content .= "</div>\n";
 				}
 			}