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box: fix server-side copying a file over existing dst - fixes #3511
Before this change, server-side copying a src file over a dst that already exists gave `Error "item_name_in_use" (409): Item with the same name already exists`. This change fixes the error by copying to a temporary name first, then moving it to the real name. There might be a more graceful way to overwrite a file during a copy, but I didn't see one in the API docs. https://developer.box.com/reference/post-files-id-copy/ In the meantime, this workaround is better than a critical error. This should (hopefully) fix 8 bisync integration tests.
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@ -43,6 +43,7 @@ import (
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"github.com/rclone/rclone/lib/jwtutil"
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"github.com/rclone/rclone/lib/oauthutil"
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"github.com/rclone/rclone/lib/pacer"
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"github.com/rclone/rclone/lib/random"
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"github.com/rclone/rclone/lib/rest"
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"github.com/youmark/pkcs8"
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"golang.org/x/oauth2"
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@ -256,7 +257,6 @@ func getQueryParams(boxConfig *api.ConfigJSON) map[string]string {
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}
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func getDecryptedPrivateKey(boxConfig *api.ConfigJSON) (key *rsa.PrivateKey, err error) {
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block, rest := pem.Decode([]byte(boxConfig.BoxAppSettings.AppAuth.PrivateKey))
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if len(rest) > 0 {
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return nil, fmt.Errorf("box: extra data included in private key: %w", err)
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@ -619,7 +619,7 @@ func (f *Fs) CreateDir(ctx context.Context, pathID, leaf string) (newID string,
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return shouldRetry(ctx, resp, err)
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})
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if err != nil {
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//fmt.Printf("...Error %v\n", err)
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// fmt.Printf("...Error %v\n", err)
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return "", err
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}
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// fmt.Printf("...Id %q\n", *info.Id)
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@ -966,6 +966,26 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
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return nil, err
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}
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// check if dest already exists
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item, err := f.preUploadCheck(ctx, leaf, directoryID, src.Size())
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if err != nil {
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return nil, err
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}
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if item != nil { // dest already exists, need to copy to temp name and then move
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tempSuffix := "-rclone-copy-" + random.String(8)
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fs.Debugf(remote, "dst already exists, copying to temp name %v", remote+tempSuffix)
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tempObj, err := f.Copy(ctx, src, remote+tempSuffix)
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if err != nil {
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return nil, err
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}
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fs.Debugf(remote+tempSuffix, "moving to real name %v", remote)
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err = f.deleteObject(ctx, item.ID)
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if err != nil {
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return nil, err
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}
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return f.Move(ctx, tempObj, remote)
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}
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// Copy the object
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opts := rest.Opts{
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Method: "POST",
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