func sendAuthRequest(requestId, domain, ip, id, mechanism, credentials string) (Status, error) {
sock, err := czmq.NewReq(ZAP_ENDPOINT)
if err != nil {
return InternalError, fmt.Errorf("Error creating new REQ for %s: %s", ZAP_ENDPOINT, err)
}
err = sock.SendMessage([][]byte{
[]byte(ZAP_VERSION), //The version frame, which SHALL contain the three octets "1.0".
[]byte(requestId), //The request id, which MAY contain an opaque binary blob.
[]byte(domain), //The domain, which SHALL contain a string.
[]byte(ip), //The address, the origin network IP address.
[]byte(id), //The identity, the connection Identity, if any.
[]byte(mechanism), //The mechanism, which SHALL contain a string.
[]byte(credentials), //The credentials, which SHALL be zero or more opaque frames.
})
if err != nil {
return InternalError, fmt.Errorf("Error in SendMessage: %s", err)
}
reply, err := sock.RecvMessage()
//for i, x := range reply { log.Printf("reply %d: %s", i, string(x)) }
if err != nil {
return InternalError, fmt.Errorf("Error in SendMessage: %s", err)
}
// SPEC: The version frame, which SHALL contain the three octets "1.0".
if !bytes.Equal(reply[0], []byte(ZAP_VERSION)) {
return InternalError, fmt.Errorf("Expected first frame to be `%s`.", ZAP_VERSION)
}
// SPEC: The request id, which MAY contain an opaque binary blob.
if !bytes.Equal(reply[1], []byte(requestId)) {
return InternalError, fmt.Errorf("Request ID did not match")
}
// SPEC: The status code, which SHALL contain a string.
status := Status(reply[2])
reason := string(reply[3])
switch status {
case Success:
return status, nil
case TemporaryError:
return status, fmt.Errorf("Temporary Error: %s", reason)
case AuthenticationFailure:
return status, fmt.Errorf("Authentication Failure: %s", reason)
case InternalError:
return status, fmt.Errorf("Internal Server Error: %s", reason)
default:
return status, fmt.Errorf("Invalid status code: %s", status)
}
// SPEC: The status text, which MAY contain a string.
// SPEC: The user id, which SHALL contain a string.
// SPEC: The metadata, which MAY contain a blob.
}
func (s *SocketType) Create(endpoint string) (sock *czmq.Sock, err error) {
log.Printf("New `%s` on `%s`", s, endpoint)
switch *s {
case REQ:
return czmq.NewReq(endpoint)
case DEALER:
return czmq.NewDealer(endpoint)
case SUB:
return czmq.NewSub(endpoint, "")
}
return nil, &InvalidSocketTypeError{*s}
}