func validateAuthParams(opts *HmacProxyOpts, msgs []string) []string {
var err error
opts.Digest.ID, err = hmacauth.DigestNameToCryptoHash(opts.Digest.Name)
if err != nil {
msgs = append(msgs, "unsupported digest: "+opts.Digest.Name)
}
if opts.Secret == "" {
msgs = append(msgs, "no secret specified")
}
if opts.SignHeader == "" {
msgs = append(msgs, "no signature header specified")
}
return msgs
}
func parseSignatureKey(o *Options, msgs []string) []string {
if o.SignatureKey == "" {
return msgs
}
components := strings.Split(o.SignatureKey, ":")
if len(components) != 2 {
return append(msgs, "invalid signature hash:key spec: "+
o.SignatureKey)
}
algorithm, secretKey := components[0], components[1]
if hash, err := hmacauth.DigestNameToCryptoHash(algorithm); err != nil {
return append(msgs, "unsupported signature hash algorithm: "+
o.SignatureKey)
} else {
o.signatureData = &SignatureData{hash, secretKey}
}
return msgs
}