[TelegramBridge] Fix entries for "media too big" (RSS-Bridge#1184)

When a large video is posted, "Media is too big" appears in web preview. This adds code to detect this and offer a link.

bridges/TelegramBridge.php

@@ -108,6 +108,10 @@ private function processContent($messageDiv) {
 			$message .= $this->processPhoto($messageDiv);
 		}
 
+		if ($messageDiv->find('a.not_supported', 0)) {
+			$message .= $this->processNotSupported($messageDiv);
+		}
+
 		if ($messageDiv->find('div.tgme_widget_message_text.js-message_text', 0)) {
 			$message .= $messageDiv->find('div.tgme_widget_message_text.js-message_text', 0);
 
@@ -250,6 +254,24 @@ private function processPhoto($messageDiv) {
 		return $photos;
 	}
 
+	private function processNotSupported($messageDiv) {
+
+		if (empty($this->itemTitle)) {
+			$this->itemTitle = '@' . $this->processUsername() . ' posted a video';
+		}
+
+		preg_match($this->backgroundImageRegex, $messageDiv->find('i.tgme_widget_message_video_thumb', 0)->style, $photo);
+
+		$this->enclosures[] = $photo[1];
+
+		return <<<EOD
+<a href="{$messageDiv->find('a.not_supported', 0)->href}">
+{$messageDiv->find('div.message_media_not_supported_label', 0)->innertext}<br><br>
+{$messageDiv->find('span.message_media_view_in_telegram', 0)->innertext}<br><br>
+<img src="{$photo[1]}"/></a>
+EOD;
+	}
+
 	private function processDate($messageDiv) {
 
 		$messageMeta = $messageDiv->find('span.tgme_widget_message_meta', 0);