Content Unavailable Error with Multiple Google Drive Accounts/Vaults

[infosecguard]

Please agree to the following

• I have searched existing issues for duplicates
• I agree to follow this project's Code of Conduct

Summary

Unable to simultaneously access vaults with two Google Drive Accounts

What software is involved?

• Operating System: iPadOS 17.4
• Cryptomator: 2.5.0
• Google Drive

Volume Type

None

Steps to Reproduce

1. Successfully create Vault (1) for GoogleDrive Account (A) - open in iPadOS Files App & successfully authenticate; view Vault OK.
2. Successfully create Vault (2) for GoogleDrive Account (B) - open in iPadOS Files App & successfully authenticate; unable to view vault - error "Content Unavailable - try again".

Expected Behavior

It should be possible to simultaneously mount/unlock/access vaults for two of more authenticated Google Drive accounts.

Prior to iPadOS 17.4, this was possible.

Actual Behavior

While it is possible to mount/authenticate vaults for two or more Google Drive accounts, only the first-accessed vault is accessible from the iPadOS Files App. Vaults associated with other authenticated Google Drive accounts cannot be accessed. When attempting to access the vault from the Files App, error "Content Unavailable - Try again".

This problem only appears to affect Google Drive Accounts

Reproducibility

Always

Relevant Log Output

No response

Anything else?

No response

[RceMBEdIxiCl]

[ADD] issue also exist on iOS 17.4 with a single Microsoft OneDrive account

[tobihagemann]

Thank you for the bug report. I've transferred this issue to the iOS repository.

Unfortunately, the "Content Unavailable" error could mean any error during directory listing. In order to analyze this error, the log files would be very helpful.

@infosecguard @RceMBEdIxiCl Can you both please go to the settings in Cryptomator and use the "Send Log Files" functionality? Thank you!

If you want, you can also go through the log files of org.cryptomator.ios.fileprovider yourselves and only post the relevant lines, where an error occurred.

[RceMBEdIxiCl]

@tobihagemann i´ve extracted the error Lines from your named logfile.

Note

• issue happens also on iOS 17.4
• If you have two Vaults opened within file App on iOS / iPad OS 17.4 issue rotate from vault one to vault two.

2024/03/12 11:59:24:867  enumerateItems failed with: Error Domain=NSURLErrorDomain Code=-996 "Kommunikation mit Hintergrundübertragungsdienst nicht möglich." UserInfo={_NSURLErrorRelatedURLSessionTaskErrorKey=(
    "BackgroundDataTask <4E559A92-9891-425E-A633-BDA28B778082>.<1>"
), NSLocalizedDescription=Kommunikation mit Hintergrundübertragungsdienst nicht möglich., _NSURLErrorFailingURLSessionTaskErrorKey=BackgroundDataTask <4E559A92-9891-425E-A633-BDA28B778082>.<1>} for identifier: NSFileProviderItemIdentifier(_rawValue: NSFileProviderRootContainerItemIdentifier)
2024/03/12 11:59:27:004  enumerateItems failed with: Error Domain=NSURLErrorDomain Code=-996 "Kommunikation mit Hintergrundübertragungsdienst nicht möglich." UserInfo={_NSURLErrorRelatedURLSessionTaskErrorKey=(
    "BackgroundDataTask <83635451-56F4-459F-9C93-A818A3F601B6>.<2>"
), NSLocalizedDescription=Kommunikation mit Hintergrundübertragungsdienst nicht möglich., _NSURLErrorFailingURLSessionTaskErrorKey=BackgroundDataTask <83635451-56F4-459F-9C93-A818A3F601B6>.<2>} for identifier: NSFileProviderItemIdentifier(_rawValue: NSFileProviderRootContainerItemIdentifier)
2024/03/12 11:59:28:134  enumerateItems failed with: Error Domain=NSURLErrorDomain Code=-996 "Kommunikation mit Hintergrundübertragungsdienst nicht möglich." UserInfo={_NSURLErrorRelatedURLSessionTaskErrorKey=(
    "BackgroundDataTask <D3867C08-C6B3-4155-B32F-80800D4FA9F5>.<3>"
), NSLocalizedDescription=Kommunikation mit Hintergrundübertragungsdienst nicht möglich., _NSURLErrorFailingURLSessionTaskErrorKey=BackgroundDataTask <D3867C08-C6B3-4155-B32F-80800D4FA9F5>.<3>} for identifier: NSFileProviderItemIdentifier(_rawValue: NSFileProviderRootContainerItemIdentifier)
2024/03/12 11:59:40:680  enumerateItems failed with: Error Domain=NSURLErrorDomain Code=-996 "Kommunikation mit Hintergrundübertragungsdienst nicht möglich." UserInfo={_NSURLErrorRelatedURLSessionTaskErrorKey=(
    "BackgroundDataTask <A7F63C4C-C2F8-4EA3-B24F-90447685BA03>.<4>"
), NSLocalizedDescription=Kommunikation mit Hintergrundübertragungsdienst nicht möglich., _NSURLErrorFailingURLSessionTaskErrorKey=BackgroundDataTask <A7F63C4C-C2F8-4EA3-B24F-90447685BA03>.<4>} for identifier: NSFileProviderItemIdentifier(_rawValue: NSFileProviderRootContainerItemIdentifier)
2024/03/12 11:59:41:896  enumerateItems failed with: Error Domain=NSURLErrorDomain Code=-996 "Kommunikation mit Hintergrundübertragungsdienst nicht möglich." UserInfo={_NSURLErrorRelatedURLSessionTaskErrorKey=(
    "BackgroundDataTask <81A56823-62D2-4B32-BFB5-A8DE2C02EAFE>.<5>"
), NSLocalizedDescription=Kommunikation mit Hintergrundübertragungsdienst nicht möglich., _NSURLErrorFailingURLSessionTaskErrorKey=BackgroundDataTask <81A56823-62D2-4B32-BFB5-A8DE2C02EAFE>.<5>} for identifier: NSFileProviderItemIdentifier(_rawValue: NSFileProviderRootContainerItemIdentifier)
2024/03/12 11:59:42:697  enumerateItems failed with: Error Domain=NSURLErrorDomain Code=-996 "Kommunikation mit Hintergrundübertragungsdienst nicht möglich." UserInfo={_NSURLErrorRelatedURLSessionTaskErrorKey=(
    "BackgroundDataTask <F50911A0-C93A-4CA0-AA8C-136369F48ABA>.<6>"
), NSLocalizedDescription=Kommunikation mit Hintergrundübertragungsdienst nicht möglich., _NSURLErrorFailingURLSessionTaskErrorKey=BackgroundDataTask <F50911A0-C93A-4CA0-AA8C-136369F48ABA>.<6>} for identifier: NSFileProviderItemIdentifier(_rawValue: NSFileProviderRootContainerItemIdentifier)
2024/03/12 11:59:51:037  enumerateItems getAdapter failed with: defaultLock for identifier: NSFileProviderItemIdentifier(_rawValue: NSFileProviderRootContainerItemIdentifier)
2024/03/12 11:59:54:788  enumerateItems failed with: Error Domain=NSURLErrorDomain Code=-996 "Kommunikation mit Hintergrundübertragungsdienst nicht möglich." UserInfo={_NSURLErrorRelatedURLSessionTaskErrorKey=(
    "BackgroundDataTask <50F0C23A-2BB6-472A-975E-DF81DE0485BB>.<7>"
), NSLocalizedDescription=Kommunikation mit Hintergrundübertragungsdienst nicht möglich., _NSURLErrorFailingURLSessionTaskErrorKey=BackgroundDataTask <50F0C23A-2BB6-472A-975E-DF81DE0485BB>.<7>} for identifier: NSFileProviderItemIdentifier(_rawValue: NSFileProviderRootContainerItemIdentifier)
2024/03/12 11:59:57:859  enumerateItems getAdapter failed with: defaultLock for identifier: NSFileProviderItemIdentifier(_rawValue: NSFileProviderRootContainerItemIdentifier)

[infosecguard]

@tobihagemann

Log extract as requested:

2024/03/12 12:10:16:483  enumerateItems failed with: Error Domain=NSURLErrorDomain Code=-996 "Could not communicate with background transfer service" UserInfo={_NSURLErrorRelatedURLSessionTaskErrorKey=(
    "BackgroundDataTask <9AA42CE4-0433-4EA4-B20B-36B37B63EAA5>.<33>"
), NSLocalizedDescription=Could not communicate with background transfer service, _NSURLErrorFailingURLSessionTaskErrorKey=BackgroundDataTask <9AA42CE4-0433-4EA4-B20B-36B37B63EAA5>.<33>} for identifier: NSFileProviderItemIdentifier(_rawValue: NSFileProviderRootContainerItemIdentifier)
2024/03/12 12:10:19:264  enumerateItems failed with: Error Domain=NSURLErrorDomain Code=-996 "Could not communicate with background transfer service" UserInfo={_NSURLErrorRelatedURLSessionTaskErrorKey=(
    "BackgroundDataTask <F57D84F8-8B3E-43F6-9E4A-12D7D320BD2D>.<34>"
), NSLocalizedDescription=Could not communicate with background transfer service, _NSURLErrorFailingURLSessionTaskErrorKey=BackgroundDataTask <F57D84F8-8B3E-43F6-9E4A-12D7D320BD2D>.<34>} for identifier: NSFileProviderItemIdentifier(_rawValue: NSFileProviderRootContainerItemIdentifier)
2024/03/12 12:10:20:140  enumerateItems failed with: Error Domain=NSURLErrorDomain Code=-996 "Could not communicate with background transfer service" UserInfo={_NSURLErrorRelatedURLSessionTaskErrorKey=(
    "BackgroundDataTask <E1BBC4C9-B02C-4286-9809-9C13A077EAD4>.<35>"
), NSLocalizedDescription=Could not communicate with background transfer service, _NSURLErrorFailingURLSessionTaskErrorKey=BackgroundDataTask <E1BBC4C9-B02C-4286-9809-9C13A077EAD4>.<35>} for identifier: NSFileProviderItemIdentifier(_rawValue: NSFileProviderRootContainerItemIdentifier)

[infosecguard]

Cryptomator for iPad Version 2.5.1 (1212), released today 15/3/2024, does NOT resolve this issue.

[RceMBEdIxiCl]

Same for OneDrive 2.5.1 on iOS and iPad OS doesn't fix the issue.

[tobihagemann]

Yes, the update didn't address this issue. Thank you for the log files. From them alone, I can't tell why it results in an error. We will look into it and try to reproduce the error.

[phil1995]

This error means that we try to use another background URLSession with the same identifier.
I think I've already know why this happens after looking at the code. I'll open a small PR.

[RceMBEdIxiCl]

Does that mean a fix will be released soon? Pls remember issue also exist on other Cloud storage providers, like MS OneDrive in my specific case. Thanks guys!

[phil1995]

Does that mean a fix will be released soon? Pls remember issue also exist on other Cloud storage providers, like MS OneDrive in my specific case. Thanks guys!

My small PR is only related to the issue which I found for Google Drive. But I'm already trying to find out why this happens for a single account with OneDrive.

[RceMBEdIxiCl]

To precise my issue, I guess you mean single OneDrive Account and I've two Cryptomator Vaults save on my OneDrive.