Storage - file.js. Any way to set Source Encryption Key?

[conundrum888]

Hi,
In File.js of the Storage package, the function setEncryptionKey() helps set the "x-goog-encryption-key" header. Is there a function to set the "x-goog-copy-source-encryption-key header"? Can a function be added for this please?

[lukesneeringer]

Hi @subra-vr,
Thanks for reporting this.

I just submitted #2324 which should give you what you need. Let me know if this solves your use case?

[conundrum888]

That should work, thanks.

[frankyn]

Hi, I'm just pinging the issue as I was trying to use the File.copy method to rotate customer-supplied encryption key using node.

I tried the following, but I didn't have any luck.

var file = bucket.file("file_name");
var options = {baseHeader: "x-goog-copy-source-encryption"};
file.setEncryptionKey(encryptionKey, options); // file was already set with encryption key
file.copy("file_name", function(err, copiedFile, apiResponse) { // used the same filename
   copiedFile.setEncryptionKey(new_encryptionKey);
   copiedFile.save(); // rotate encryption key
});

[stephenplusplus]

Maybe we should have a method:

file.rotateEncryptionKey(newKey, function(err) {});

This would handle doing the rewrite, and managing the headers. What do you think?

[frankyn]

+1 I agree can we move forward with this feature request? Ruby has this helper method in its client library. (Documentation).

[stephenplusplus]

Sounds good to me, and thanks for the reference.

[frankyn]

@stephenplusplus is there a status on this request?