in GetMessage, parse message with Attr[file-downloaded] to seed a CheckDownloadStatus call

lib.go

@@ -15,7 +15,6 @@ import (
 
 	"git.openprivacy.ca/cwtch.im/libcwtch-go/features"
 
-
 	// Import SQL Cipher
 	"os/user"
 	"runtime"
@@ -526,6 +525,26 @@ func GetMessage(profileOnion string, conversationID int, messageIndex int) strin
 			message.ID = messages[0].ID
 			message.Attributes = messages[0].Attr
 			message.ContactImage = utils.RandomProfileImage(message.PeerID)
+
+			if messages[0].Attr["file-downloaded"] == "true" {
+				var wrapper model.MessageWrapper
+				err := json.Unmarshal([]byte(messages[0].Body), &wrapper)
+				if err != nil {
+					log.Errorf("Couldn't decode MessageWrapper with attribute file-download:true: %v", err)
+				} else {
+					if wrapper.Overlay == model.OverlayFileSharing {
+						var fsOverlay filesharing.OverlayMessage
+						err = json.Unmarshal([]byte(wrapper.Data), &fsOverlay)
+						if err != nil {
+							log.Errorf("Couldn't decode message FileSharingOverlayMessage: %v", err)
+						} else {
+							CheckDownloadStatus(profileOnion, fsOverlay.Hash+"."+fsOverlay.Nonce)
+						}
+					} else {
+						log.Errorf("Message with attribute file-download:true has Overlay that is not filesharing:200, got %v", wrapper.Overlay)
+					}
+				}
+			}
 		}
 	}
 	bytes, _ := json.Marshal(message)