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Redefined protocol

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This commit is contained in:
qowevisa 2024-06-07 09:47:40 +03:00
parent af491e27a0
commit 4e9b0f24bb
1 changed files with 71 additions and 46 deletions
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117
communication/protocol.go
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@ -8,48 +8,51 @@ import (
"git.qowevisa.me/Qowevisa/gotell/gmyerr"
)
// VERSION field
// VERSION is 1 byte
const (
V1 = 1 + iota
)
// FROM field
// ID is 1 byte
const (
FROM_SERVER = 1 + iota
FROM_CLIENT
FROM_MY_ID
// Client Handles
ID_SERVER_ASK_CLIENT_NICKNAME = 1
// Server Handles
ID_CLIENT_SEND_SERVER_NICKNAME = 2
// Client Handles
ID_SERVER_APPROVE_CLIENT_NICKNAME = 3
ID_SERVER_DECLINE_CLIENT_NICKNAME = 4
// Server Handles
ID_CLIENT_SEND_SERVER_LINK = 5
// Client Handles
ID_SERVER_APPROVE_CLIENT_LINK = 6
ID_SERVER_DECLINE_CLIENT_LINK = 7
// Server Handles
ID_CLIENT_ASK_SERVER_LINK = 8
// Client Handles
ID_SERVER_SEND_CLIENT_ANOTHER_ID = 9
// Client Handles . Server redirects
ID_CLIENT_ASK_CLIENT_HANDSHAKE = 10
ID_CLIENT_APPROVE_CLIENT_HANDSHAKE = 11
ID_CLIENT_DECLINE_CLIENT_HANDSHAKE = 12
ID_CLIENT_SEND_CLIENT_ECDH_PUBKEY = 13
ID_CLIENT_SEND_CLIENT_CBES_SPECS = 14
ID_CLIENT_SEND_CLIENT_MKLG_FINGERPRINT = 15
ID_CLIENT_DECLINE_CLIENT_MKLG_FINGERPRINT = 16
ID_CLIENT_SEND_CLIENT_MESSAGE = 17
)
// FROM_ID is 2 bytes
// TO_ID is 2 bytes
// ACTION field
const (
ACTION_ASK = 1 + iota
ACTION_SEND
)
// ABOUT field
const (
ABOUT_NICKNAME = 1 + iota
ABOUT_ID
ABOUT_LINK
ABOUT_ECDH_PUB_KEY
ABOUT_CBES_SPECS
ABOUT_MKLG_FGPRINT
ABOUT_MESSAGE
)
// DATA_LEN is 2 bytes
type Message struct {
Version uint8
From uint8
ID uint8
FromID uint16
ToID uint16
Action uint8
About uint8
DataLen uint16
Data []byte
}
@ -78,11 +81,9 @@ func Decode(serverBytes []byte) (*Message, error) {
func ServerAskClientAboutNickname() ([]byte, error) {
c := Message{
Version: V1,
From: FROM_SERVER,
ID: ID_SERVER_ASK_CLIENT_NICKNAME,
FromID: 0,
ToID: 0,
Action: ACTION_ASK,
About: ABOUT_NICKNAME,
DataLen: 0,
Data: []byte{},
}
@ -92,11 +93,9 @@ func ServerAskClientAboutNickname() ([]byte, error) {
func ClientSendServerNickname(nickname []byte) ([]byte, error) {
c := Message{
Version: V1,
From: FROM_CLIENT,
ID: ID_CLIENT_SEND_SERVER_NICKNAME,
FromID: 0,
ToID: 0,
Action: ACTION_SEND,
About: ABOUT_NICKNAME,
DataLen: uint16(len(nickname)),
Data: nickname,
}
@ -106,17 +105,27 @@ func ClientSendServerNickname(nickname []byte) ([]byte, error) {
func ServerSendClientHisID(id []byte) ([]byte, error) {
c := Message{
Version: V1,
From: FROM_SERVER,
ID: ID_SERVER_APPROVE_CLIENT_NICKNAME,
FromID: 0,
ToID: 0,
Action: ACTION_SEND,
About: ABOUT_ID,
DataLen: uint16(len(id)),
Data: id,
}
return c.Bytes()
}
func ServerSendClientDecline() ([]byte, error) {
c := Message{
Version: V1,
ID: ID_SERVER_DECLINE_CLIENT_NICKNAME,
FromID: 0,
ToID: 0,
DataLen: 0,
Data: []byte{},
}
return c.Bytes()
}
func (r *RegisteredUser) GenerateLink(count uint32) (Link, error) {
var l Link
buf := make([]byte, LINK_LEN_V1)
@ -152,11 +161,9 @@ func (r *RegisteredUser) GetIDFromLink(l Link) ([]byte, error) {
}
c := Message{
Version: V1,
From: FROM_CLIENT,
ID: ID_CLIENT_ASK_SERVER_LINK,
FromID: r.ID,
ToID: 0,
Action: ACTION_ASK,
About: ABOUT_LINK,
DataLen: uint16(len(bb)),
Data: bb,
}
@ -166,39 +173,57 @@ func (r *RegisteredUser) GetIDFromLink(l Link) ([]byte, error) {
func ServerSendClientIDFromLink(toID uint16, toName []byte) ([]byte, error) {
c := Message{
Version: V1,
From: FROM_SERVER,
FromID: 0,
ID: ID_SERVER_SEND_CLIENT_ANOTHER_ID,
ToID: toID,
Action: ACTION_SEND,
About: ABOUT_LINK,
DataLen: uint16(len(toName)),
Data: toName,
}
return c.Bytes()
}
func (r *RegisteredUser) ClientSendThroughServerECDHPubKey(to uint16, pubkey []byte) ([]byte, error) {
c := Message{
Version: V1,
ID: ID_CLIENT_SEND_CLIENT_ECDH_PUBKEY,
FromID: r.ID,
ToID: to,
DataLen: uint16(len(pubkey)),
Data: pubkey,
}
return c.Bytes()
}
func (r *RegisteredUser) ClientSendThroughServerCBESSpecs(to uint16, data []byte) ([]byte, error) {
c := Message{
Version: V1,
From: FROM_CLIENT,
ID: ID_CLIENT_SEND_CLIENT_CBES_SPECS,
FromID: r.ID,
ToID: to,
Action: ACTION_SEND,
About: ABOUT_CBES_SPECS,
DataLen: uint16(len(data)),
Data: data,
}
return c.Bytes()
}
func (r *RegisteredUser) ClientSendThroughServerMKLGPrint(to uint16, mklg []byte) ([]byte, error) {
c := Message{
Version: V1,
ID: ID_CLIENT_SEND_CLIENT_MKLG_FINGERPRINT,
FromID: r.ID,
ToID: to,
DataLen: uint16(len(mklg)),
Data: mklg,
}
return c.Bytes()
}
func (r *RegisteredUser) SendMessageToID(to uint16, msg []byte) ([]byte, error) {
c := Message{
Version: V1,
From: FROM_CLIENT,
ID: ID_CLIENT_SEND_CLIENT_MESSAGE,
FromID: r.ID,
ToID: to,
Action: ACTION_SEND,
About: ABOUT_MESSAGE,
DataLen: uint16(len(msg)),
Data: msg,
}