Allow multiple authors on enclosures (#6272)

fix https://github.com/FreshRSS/FreshRSS/issues/5066

app/Models/Entry.php

@@ -201,7 +201,7 @@ HTML;
 			if (!$allowDuplicateEnclosures && self::containsLink($content, $elink)) {
 				continue;
 			}
-			$credit = $enclosure['credit'] ?? '';
+			$credits = $enclosure['credit'] ?? '';
 			$description = nl2br($enclosure['description'] ?? '', true);
 			$length = $enclosure['length'] ?? 0;
 			$medium = $enclosure['medium'] ?? '';
@@ -238,8 +238,13 @@ HTML;
 					. '" title="' . $etitle . '">💾</a></p>';
 			}
 
-			if ($credit != '') {
-				$content .= '<p class="enclosure-credits">© ' . $credit . '</p>';
+			if ($credits != '') {
+				if (!is_array($credits)) {
+					$credits = [$credits];
+				}
+				foreach ($credits as $credit) {
+					$content .= '<p class="enclosure-credits">© ' . $credit . '</p>';
+				}
 			}
 			if ($description != '') {
 				$content .= '<figcaption class="enclosure-description">' . $description . '</figcaption>';
@@ -250,7 +255,7 @@ HTML;
 		return $content;
 	}
 
-	/** @return Traversable<array{'url':string,'type'?:string,'medium'?:string,'length'?:int,'title'?:string,'description'?:string,'credit'?:string,'height'?:int,'width'?:int,'thumbnails'?:array<string>}> */
+	/** @return Traversable<array{'url':string,'type'?:string,'medium'?:string,'length'?:int,'title'?:string,'description'?:string,'credit'?:string|array<string>,'height'?:int,'width'?:int,'thumbnails'?:array<string>}> */
 	public function enclosures(bool $searchBodyImages = false): Traversable {
 		$attributeEnclosures = $this->attributeArray('enclosures');
 		if (is_iterable($attributeEnclosures)) {

app/Models/Feed.php

@@ -520,7 +520,7 @@ class FreshRSS_Feed extends Minz_Model {
 					$elink = $enclosure->get_link();
 					if ($elink != '') {
 						$etitle = $enclosure->get_title() ?? '';
-						$credit = $enclosure->get_credit() ?? null;
+						$credits = $enclosure->get_credits() ?? null;
 						$description = $enclosure->get_description() ?? '';
 						$mime = strtolower($enclosure->get_type() ?? '');
 						$medium = strtolower($enclosure->get_medium() ?? '');
@@ -534,8 +534,11 @@ class FreshRSS_Feed extends Minz_Model {
 						if ($etitle != '') {
 							$attributeEnclosure['title'] = $etitle;
 						}
-						if ($credit != null) {
-							$attributeEnclosure['credit'] = $credit->get_name();
+						if (is_array($credits)) {
+							$attributeEnclosure['credit'] = [];
+							foreach ($credits as $credit) {
+								$attributeEnclosure['credit'][] = $credit->get_name();
+							}
 						}
 						if ($description != '') {
 							$attributeEnclosure['description'] = $description;

app/views/index/rss.phtml

@@ -60,6 +60,16 @@ foreach ($this->entries as $item) {
 						continue;
 					}
 					$urls[$enclosure['url']] = true;
+
+					$credits = $enclosure['credit'] ?? [];
+					if (!is_array($credits)) {	// For entries < FreshRSS 1.24
+						$credits = [$credits];
+					}
+					$mediaCredits = '';
+					foreach ($credits as $credit) {
+						$mediaCredits = '<media:credit>' . $credit . '</media:credit>';
+					}
+
 					// https://www.rssboard.org/media-rss
 					echo "\t\t\t", '<media:content url="' . $enclosure['url']
 						. (empty($enclosure['medium']) ? '' : '" medium="' . $enclosure['medium'])
@@ -69,7 +79,7 @@ foreach ($this->entries as $item) {
 						. (empty($enclosure['width']) ? '' : '" width="' . $enclosure['width'])
 						. '">'
 						. (empty($enclosure['title']) ? '' : '<media:title type="html">' . $enclosure['title'] . '</media:title>')
-						. (empty($enclosure['credit']) ? '' : '<media:credit>' . $enclosure['credit'] . '</media:credit>')
+						. $mediaCredits
 						. '</media:content>', "\n";
 				}
 			?>