package main import ( "git.curoverse.com/arvados.git/sdk/go/keepclient" "time" ) // The PermissionSecret is the secret key used to generate SHA1 // digests for permission hints. apiserver and Keep must use the same // key. var PermissionSecret []byte // SignLocator takes a blobLocator, an apiToken and an expiry time, and // returns a signed locator string. func SignLocator(blobLocator, apiToken string, expiry time.Time) string { return keepclient.SignLocator(blobLocator, apiToken, expiry, PermissionSecret) } // VerifySignature returns nil if the signature on the signedLocator // can be verified using the given apiToken. Otherwise it returns // either ExpiredError (if the timestamp has expired, which is // something the client could have figured out independently) or // PermissionError. func VerifySignature(signedLocator, apiToken string) error { err := keepclient.VerifySignature(signedLocator, apiToken, PermissionSecret) if err == keepclient.ErrSignatureExpired { return ExpiredError } else if err != nil { return PermissionError } return nil }