func NewMemberInfoFromToken(token *XLRegMsg_Token) (
m *xcl.MemberInfo, err error) {
var (
ck, sk *rsa.PublicKey
ctor xt.ConnectorI
ctors []xt.ConnectorI
farEnd xt.EndPointI
nodeID *xi.NodeID
peer *xn.Peer
)
if token == nil {
err = NilToken
} else {
nodeID, err = xi.New(token.GetID())
if err == nil {
ck, err = xc.RSAPubKeyFromWire(token.GetCommsKey())
if err == nil {
sk, err = xc.RSAPubKeyFromWire(token.GetSigKey())
if err == nil {
attrs := token.GetAttrs()
myEnds := token.GetMyEnds()
for i := 0; i < len(myEnds); i++ {
myEnd := myEnds[i]
farEnd, err = xt.NewTcpEndPoint(myEnd)
if err != nil {
break
}
ctor, err = xt.NewTcpConnector(farEnd)
if err != nil {
break
}
ctors = append(ctors, ctor)
}
if err == nil {
peer, err = xn.NewPeer(token.GetName(), nodeID,
ck, sk, nil, ctors)
if err == nil {
m = &xcl.MemberInfo{
Attrs: attrs,
Peer: peer,
}
}
}
}
//if err == nil {
// m, err = NewMemberInfo(token.GetName(), nodeID,
// ck, sk, token.GetAttrs(), token.GetMyEnds())
//}
}
}
}
return
}
func NewClientInfoFromToken(token *XLRegMsg_Token) (
m *ClientInfo, err error) {
var nodeID *xi.NodeID
if token == nil {
err = NilToken
} else {
nodeID, err = xi.New(token.GetID())
if err == nil {
ck, err := xc.RSAPubKeyFromWire(token.GetCommsKey())
if err == nil {
sk, err := xc.RSAPubKeyFromWire(token.GetSigKey())
if err == nil {
m, err = NewClientInfo(token.GetName(), nodeID,
ck, sk, token.GetAttrs(), token.GetMyEnds())
}
}
}
}
return
}
func doClientMsg(h *InHandler) {
var err error
defer func() {
h.errOut = err
}()
// DEBUG
regName := h.reg.GetName()
h.reg.Logger.Printf("doClientMsg: regName is %s\n", regName)
// END
// Examine incoming message -------------------------------------
var (
name string
attrs uint64
nodeID *xi.NodeID
ck, sk *rsa.PublicKey
myEnds []string
hash []byte
cm *ClientInfo
)
// XXX We should accept EITHER clientName + token OR clientID
// This implementation only accepts a token.
clientMsg := h.msgIn
clientSpecs := clientMsg.GetMemberSpecs()
name = clientSpecs.GetName()
attrs = clientSpecs.GetAttrs()
ckBytes := clientSpecs.GetCommsKey()
skBytes := clientSpecs.GetSigKey()
digSig := clientSpecs.GetDigSig()
ck, err = xc.RSAPubKeyFromWire(ckBytes)
if err == nil {
sk, err = xc.RSAPubKeyFromWire(skBytes)
if err == nil {
myEnds = clientSpecs.GetMyEnds() // a string array
}
}
if err == nil {
// calculate hash over fields in canonical order XXX EXCLUDING ID
aBytes := make([]byte, 8)
binary.LittleEndian.PutUint64(aBytes, attrs)
d := sha1.New()
d.Write([]byte(name))
d.Write(aBytes)
d.Write(ckBytes)
d.Write(skBytes)
for i := 0; i < len(myEnds); i++ {
d.Write([]byte(myEnds[i]))
}
hash = d.Sum(nil)
// verify the digital signature
err = rsa.VerifyPKCS1v15(sk, crypto.SHA1, hash, digSig)
}
if err == nil {
id := clientSpecs.GetID()
// DEBUG
if id == nil {
h.reg.Logger.Println(" doClientMsg: id from Specs is NIL")
} else {
h.reg.Logger.Printf(" doClientMsg: id from Specs is %x\n", id)
}
// END
if id == nil {
nodeID, err = h.reg.InsertUniqueNodeID()
// DEBUG
h.reg.Logger.Printf(" doClientMsg: inserting %x returned %v\n", id, err)
// END
if err == nil {
id := nodeID.Value()
// this is echoed to the console
h.reg.Logger.Printf("doClientMsg: assigning new MemberID %xi, user %s",
id, name)
}
} else {
// must be known to the registry
nodeID, err = xi.New(id)
if err == nil {
var found bool
found, err = h.reg.ContainsID(nodeID)
if err == nil && !found {
err = h.reg.InsertID(nodeID)
}
}
}
}
// Take appropriate action --------------------------------------
if err == nil || err == IDAlreadyInUse {
// The appropriate action is to hang a token for this client off
// the InHandler.
cm, err = NewClientInfo(name, nodeID, ck, sk, attrs, myEnds)
if err == nil {
h.thisClient = cm
}
}
if err == nil {
// Prepare reply to client --------------------------------------
// In this implementation We simply accept the client's proposed
// attrs and ID.
op := XLRegMsg_MemberOK
h.msgOut = &XLRegMsg{
Op: &op,
MemberID: nodeID.Value(),
MemberAttrs: &attrs, // in production, review and limit
}
// Set exit state -----------------------------------------------
h.exitState = CLIENT_DETAILS_RCVD
}
}
