func revokeKey(req *messages.Request, adm *messages.AdminRequest) ([]byte, error) {
tx, err := db.Begin()
if err != nil {
return messages.NewServerResponse(false, "Database failure.", nil)
}
if !db.HaveAdmin(tx) {
db.Finalise(tx, nil)
return messages.NewServerResponse(false, "Not initialised.", nil)
}
// Check key against revocation list.
revoked, err := db.IsKeyRevoked(tx, req.Public)
if err != nil {
log.Printf("failed to check revocation list (%v)", err)
db.Finalise(tx, err)
return messages.NewServerResponse(false, "Not authorised.", nil)
} else if revoked {
log.Println("attempt to revoke key using revoked key")
db.Finalise(tx, err)
return messages.NewServerResponse(false, "Not authorised.", nil)
}
// Retrieve the admin key, and ensure that the request was
// properly signed by this key. Also, check that the key being
// revoked is not the administrative signature key.
adminSigner, err := db.GetRoleSigner(tx, "admin")
if err != nil {
log.Println("failed to load admin signer")
db.Finalise(tx, err)
return messages.NewServerResponse(false, "Not authorised.", nil)
} else if bytes.Equal(adminSigner, adm.Public) {
log.Println("attempt to revoke current admin signer")
db.Finalise(tx, err)
return messages.NewServerResponse(false, "Cannot revoke current admin signer.", nil)
}
err = db.RevokeKey(tx, adm.Public, req.Public, "", "")
if err != nil {
db.Finalise(tx, err)
log.Printf("failed to revoke key (%v)", err)
return messages.NewServerResponse(false, "Failed to revoke key.", nil)
}
db.Finalise(tx, err)
log.Println("revoked key")
return messages.NewServerResponse(true, "Key revoked.", nil)
}
func alterRole(role string, req *messages.Request, adm *messages.AdminRequest) ([]byte, error) {
tx, err := db.Begin()
if err != nil {
log.Println("database failure on request")
return messages.NewServerResponse(false, "Database failure.", nil)
}
var out []byte
if !db.HaveAdmin(tx) {
if role == "admin" {
out, err = initAdmin(tx, req)
} else {
out, err = messages.NewServerResponse(false, "Admin role not initialised.", nil)
}
} else {
out, err = updateRole(tx, req, adm, role)
}
db.Finalise(tx, err)
return out, err
}