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dropbox: make across config server side Move/Copy/DirMove fallback to copy

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If we are doing a cross remote transfer then attempting a
Move/Copy/DirMove where we don't have permission gives
`from_lookup/not_found` errors.

This patch notices that error and only if we are doing a cross remote
transfer it engages the fallback where the file is streamed.

See: https://forum.rclone.org/t/dropbox-io-error-movedir-failed-from-lookup-not-found-when-try-to-move-copy-works/34088
This commit is contained in:
Nick Craig-Wood 2022-11-15 12:39:17 +00:00
parent 2c78f56d48
commit 4660f5f15d
1 changed files with 27 additions and 0 deletions
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27
backend/dropbox/dropbox.go
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@ -1078,6 +1078,15 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
return shouldRetry(ctx, err)
})
if err != nil {
switch e := err.(type) {
case files.CopyV2APIError:
// If we are doing a cross remote transfer then from_lookup/not_found indicates we
// don't have permission to read the source, so engage the slow path
if srcObj.fs != f && e.EndpointError != nil && e.EndpointError.FromLookup != nil && e.EndpointError.FromLookup.Tag == files.LookupErrorNotFound {
fs.Debugf(srcObj, "Copy failed attempting fallback: %v", err)
return nil, fs.ErrorCantCopy
}
}
return nil, fmt.Errorf("copy failed: %w", err)
}
@ -1139,6 +1148,15 @@ func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object,
return shouldRetry(ctx, err)
})
if err != nil {
switch e := err.(type) {
case files.MoveV2APIError:
// If we are doing a cross remote transfer then from_lookup/not_found indicates we
// don't have permission to read the source, so engage the slow path
if srcObj.fs != f && e.EndpointError != nil && e.EndpointError.FromLookup != nil && e.EndpointError.FromLookup.Tag == files.LookupErrorNotFound {
fs.Debugf(srcObj, "Move failed attempting fallback: %v", err)
return nil, fs.ErrorCantMove
}
}
return nil, fmt.Errorf("move failed: %w", err)
}
@ -1257,6 +1275,15 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
return shouldRetry(ctx, err)
})
if err != nil {
switch e := err.(type) {
case files.MoveV2APIError:
// If we are doing a cross remote transfer then from_lookup/not_found indicates we
// don't have permission to read the source, so engage the slow path
if srcFs != f && e.EndpointError != nil && e.EndpointError.FromLookup != nil && e.EndpointError.FromLookup.Tag == files.LookupErrorNotFound {
fs.Debugf(srcFs, "DirMove failed attempting fallback: %v", err)
return fs.ErrorCantDirMove
}
}
return fmt.Errorf("MoveDir failed: %w", err)
}