Fix moveLink to send NameSignatureEmail required by Proton Drive API

Set the new NameSignatureEmail field on MoveLinkReq and stop sending
NodePassphraseSignature/SignatureEmail. Per the official Proton Drive
Windows client (MoveLinkParameters.cs) the latter pair are only sent
when moving an anonymously-signed node; for ordinary user-owned nodes
they must be omitted so the server preserves the existing signature on
the link.

Bump go-proton-api for the new MoveLinkReq schema.

Fixes rclone/rclone#8512

Author: ncw

folder.go

@@ -202,9 +202,9 @@ func (protonDrive *ProtonDrive) MoveFolder(ctx context.Context, srcLink *proton.
 func (protonDrive *ProtonDrive) moveLink(ctx context.Context, srcLink *proton.Link, dstParentLink *proton.Link, dstName string) error {
 	// we are moving the srcLink to under dstParentLink, with name dstName
 	req := proton.MoveLinkReq{
-		ParentLinkID:     dstParentLink.LinkID,
-		OriginalHash:     srcLink.Hash,
-		SignatureAddress: protonDrive.signatureAddress,
+		ParentLinkID:       dstParentLink.LinkID,
+		OriginalHash:       srcLink.Hash,
+		NameSignatureEmail: protonDrive.signatureAddress,
 	}
 
 	dstParentKR, err := protonDrive.getLinkKR(ctx, dstParentLink)
@@ -239,7 +239,11 @@ func (protonDrive *ProtonDrive) moveLink(ctx context.Context, srcLink *proton.Li
 		return err
 	}
 	req.NodePassphrase = nodePassphrase
-	req.NodePassphraseSignature = srcLink.NodePassphraseSignature
+
+	// NodePassphraseSignature/SignatureEmail are only required for
+	// anonymously created nodes (matching the official Proton Drive Windows
+	// client). For regular user-owned nodes they are omitted so the server
+	// preserves the existing signature on the link.
 
 	protonDrive.removeLinkIDFromCache(srcLink.LinkID, false)
 

go.mod

@@ -7,7 +7,7 @@ toolchain go1.23.5
 require (
 	github.com/ProtonMail/gluon v0.17.1-0.20230724134000-308be39be96e
 	github.com/ProtonMail/gopenpgp/v2 v2.8.2
-	github.com/rclone/go-proton-api v1.0.1-0.20260127173028-eb465cac3b18
+	github.com/rclone/go-proton-api v1.0.1
 	github.com/relvacode/iso8601 v1.6.0
 	golang.org/x/sync v0.10.0
 )

go.sum

@@ -75,8 +75,8 @@ github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/rclone/go-proton-api v1.0.1-0.20260127173028-eb465cac3b18 h1:Lc+d3ISfQaMJKWZOE7z4ZSY4RVmdzbn1B0IM8xN18qM=
-github.com/rclone/go-proton-api v1.0.1-0.20260127173028-eb465cac3b18/go.mod h1:LB2kCEaZMzNn3ocdz+qYfxXmuLxxN0ka62KJd2x53Bc=
+github.com/rclone/go-proton-api v1.0.1 h1:Nb7E1d0kPpniupBTqvf0JCmAfRdmuQx0IVjfo5T1/jg=
+github.com/rclone/go-proton-api v1.0.1/go.mod h1:LB2kCEaZMzNn3ocdz+qYfxXmuLxxN0ka62KJd2x53Bc=
 github.com/relvacode/iso8601 v1.6.0 h1:eFXUhMJN3Gz8Rcq82f9DTMW0svjtAVuIEULglM7QHTU=
 github.com/relvacode/iso8601 v1.6.0/go.mod h1:FlNp+jz+TXpyRqgmM7tnzHHzBnz776kmAH2h3sZCn0I=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=