Couchbase Lite android replication FORBIDDEN error

bharath · July 10, 2017, 8:51am

Hi,
When trying to sync between mobile and sync-gateway, how to capture FORBIDDEN status errors as callback? There is only change listener available and it does not get error callback but I can see logs from cb android library like this,

W/Sync: error=forbidden, id=332444fa-0e81-4896-a171-8e1510ffc938, reason=Unknown document type, status=403}: _bulk_docs got an error: com.couchbase.lite.replicator.PusherInternal

I posted this issue in github (https://github.com/couchbase/couchbase-lite-android/issues/1253) and @hideki responded,
“you could set ChangeListener to the replicator, and check the value of ChangeEvent.getError().”

But even getError returns null always when the above log is printed.
I think it is because 403 errors are eaten up here,

github.com

couchbase/couchbase-lite-java-core/blob/master/src/main/java/com/couchbase/lite/replicator/PusherInternal.java#L552


      
          public void onCompletion(RemoteRequest remoteRequest, Response httpResponse, Object result, Throwable e) {
              if (e == null) {
                  Set<String> failedIDs = new HashSet<String>();
                  // _bulk_docs response is really an array, not a dictionary!
                  List<Map<String, Object>> items = (List) result;
                  for (Map<String, Object> item : items) {
                      Status status = statusFromBulkDocsResponseItem(item);
                      if (status.isError()) {
                          // One of the docs failed to save.
                          Log.w(TAG, "%s: _bulk_docs got an error: %s", item, this);
                          // 403/Forbidden means validation failed; don't treat it as an error
                          // because I did my job in sending the revision. Other statuses are
                          // actual replication errors.
                          if (status.getCode() != Status.FORBIDDEN) {
                              String docID = (String) item.get("id");
                              failedIDs.add(docID);
                              // TODO - port from iOS
                              // NSURL* url = docID ? [_remote URLByAppendingPathComponent: docID] : nil;
                              // error = CBLStatusToNSError(status, url);
                          }
                      }

Log.w(TAG, “%s: _bulk_docs got an error: %s”, item, this);
// 403/Forbidden means validation failed; don’t treat it as an error
// because I did my job in sending the revision. Other statuses are
// actual replication errors.

Is there any other way to capture sync-gateway FORBIDDEN 403 errors in replication object? Thanks!

hideki · July 10, 2017, 10:41pm

Hi @bharath,

As CBL is open source, you could clone from github. You could customize Replicator codes as you want.

Hope this helps you.

bharath · July 11, 2017, 3:54am

Hi @hideki ,
Thanks a lot for responding again on this forum. Can you recommend how to handle validation errors from client side if a document fails to sync because of 403 errors?

hideki · July 11, 2017, 4:27am

With current implementation (spec), 403/Forbidden error during push replication is skipped. You could set Exception to `e variable. Could you please do some experiment by yourself?
Thanks!

bharath · July 11, 2017, 4:39am

Sure. So I guess only way to solve this is by forking and adding my changes to pass Forbidden errors. Thanks

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Couchbase Lite android replication FORBIDDEN error

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