Syncthing Android crashes syncing to untrusted machine

Sleuth · July 11, 2021, 3:13pm

Syncthing version: 1.17.0 for both devices

Android version: 11

Linux version: Latest RaspberryPiOS

Syncthing on android crashes when I configure an untrusted folder. I used the webUI because the native UI doesn’t support this feature yet. The RPI says it’s receiving unencrypted data on an encrypted folder and doesn’t write it. remote expects to exchange encrypted data, but is configured for plain data

It looks like Syncthing for Android just doesn’t support untrusted folders yet. Is that correct? A simple fix might be a setting to only use the webUI that way if the android UI doesn’t support something a user could still use it through the webUI.

AudriusButkevicius · July 11, 2021, 3:23pm

github.com/syncthing/syncthing-android

Encryption password is overwritten for any change to any folder using the Android UI

opened 07:06AM - 09 Jul 21 UTC

closed 07:53AM - 09 Jul 21 UTC

sashee

I noticed constant crashes when I use encrypted (untrusted) folders. When I set …up a folder, I use the Web UI to set the password. But later I found that the password was empty. This crashes Syncthing and I see an error on the other end: ``` ... Failure checking encryption consistency with device ... for folder ...: remote expects to exchange plain data, but is configured to be encrypted ``` Seems like if I use the Android UI (not the Web UI), open a folder than make any change to any folder, it clears the password for all folders. Steps to reproduce: - Open the Web UI and add a folder (Test), share it with a device and set a password - Go back to the Android UI, open any folder and make any change (for the test I opened a different folder (Folder2) and unshared it) - Back on the Web UI, the original folder (Test) is still shared with the device but with no password ### Version Information App Version: 1.18.0 Syncthing Version: v1.18.0 Android Version: Android 10

Sleuth · July 11, 2021, 4:23pm

Thanks @AudriusButkevicius, I should have looked on github.

system · August 10, 2021, 4:23pm

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