Redo direct media access with URL refreshing (#135)

attachments.go

@@ -323,19 +323,17 @@ func (br *DiscordBridge) copyAttachmentToMatrix(intent *appservice.IntentAPI, ur
 }
 
 func (portal *Portal) getEmojiMXCByDiscordID(emojiID, name string, animated bool) id.ContentURI {
-	var url, mimeType, ext string
+	mxc := portal.bridge.DMA.EmojiMXC(emojiID, name, animated)
+	if !mxc.IsEmpty() {
+		return mxc
+	}
+	var url, mimeType string
 	if animated {
 		url = discordgo.EndpointEmojiAnimated(emojiID)
 		mimeType = "image/gif"
-		ext = "gif"
 	} else {
 		url = discordgo.EndpointEmoji(emojiID)
 		mimeType = "image/png"
-		ext = "png"
-	}
-	mxc := portal.bridge.Config.Bridge.MediaPatterns.Emoji(emojiID, ext)
-	if !mxc.IsEmpty() {
-		return mxc
 	}
 	dbFile, err := portal.bridge.copyAttachmentToMatrix(portal.MainIntent(), url, false, AttachmentMeta{
 		AttachmentID: emojiID,