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Message encoding of announcement and response messages.

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More changes coming.
Rename of organization to Peernet s.r.o.
InformationRequest proper termination signal.
This commit is contained in:
Kleissner
2021-03-14 04:30:57 +01:00
parent f120971944
commit 323f379ee7
18 changed files with 852 additions and 100 deletions
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54
Commands.go
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@@ -1,6 +1,6 @@
/*
File Name: Commands.go
Copyright: 2021 Peernet Foundation s.r.o.
Copyright: 2021 Peernet s.r.o.
Author: Peter Kleissner
*/
@@ -9,36 +9,10 @@ package core
import (
"fmt"
"time"
"github.com/btcsuite/btcd/btcec"
)
// Commands between peers
const (
// Peer List Management
CommandAnnouncement = 0 // Announcement
CommandResponse = 1 // Response
CommandPing = 2 // Keep-alive message (no payload).
CommandPong = 3 // Response to ping (no payload).
// Blockchain
CommandGet = 4 // Request blocks for specified peer.
// File Discovery
// Debug
CommandChat = 10 // Chat message [debug]
)
// packet2 is a high-level message between peers
type packet2 struct {
PacketRaw
SenderPublicKey *btcec.PublicKey // Sender Public Key, ECDSA (secp256k1) 257-bit
connection *Connection // Connection that received the packet
}
// cmdAnouncement handles an incoming announcement
func (peer *PeerInfo) cmdAnouncement(msg *packet2) {
func (peer *PeerInfo) cmdAnouncement(msg *MessageAnnouncement) {
if peer == nil {
peer, added := PeerlistAdd(msg.SenderPublicKey, msg.connection)
fmt.Printf("Incoming initial announcement from %s\n", msg.connection.Address.String())
@@ -57,7 +31,7 @@ func (peer *PeerInfo) cmdAnouncement(msg *packet2) {
}
// cmdResponse handles the response to the announcement
func (peer *PeerInfo) cmdResponse(msg *packet2) {
func (peer *PeerInfo) cmdResponse(msg *MessageResponse) {
if peer == nil {
peer, _ = PeerlistAdd(msg.SenderPublicKey, msg.connection)
fmt.Printf("Incoming initial response from %s\n", msg.connection.Address.String())
@@ -69,7 +43,7 @@ func (peer *PeerInfo) cmdResponse(msg *packet2) {
}
// cmdPing handles an incoming ping message
func (peer *PeerInfo) cmdPing(msg *packet2) {
func (peer *PeerInfo) cmdPing(msg *MessageRaw) {
if peer == nil {
// Unexpected incoming ping, reply with announce message
// TODO
@@ -80,12 +54,12 @@ func (peer *PeerInfo) cmdPing(msg *packet2) {
}
// cmdPong handles an incoming pong message
func (peer *PeerInfo) cmdPong(msg *packet2) {
func (peer *PeerInfo) cmdPong(msg *MessageRaw) {
//fmt.Printf("Incoming pong from %s on %s\n", msg.connection.Address.String(), msg.connection.Address.String())
}
// cmdChat handles a chat message [debug]
func (peer *PeerInfo) cmdChat(msg *packet2) {
func (peer *PeerInfo) cmdChat(msg *MessageRaw) {
fmt.Printf("Chat from '%s': %s\n", msg.connection.Address.String(), string(msg.PacketRaw.Payload))
}
@@ -124,7 +98,7 @@ func autoPingAll() {
}
if connection.LastPacketIn.Before(thresholdPing) && connection.LastPingOut.Before(thresholdPing) {
peer.sendPing(connection)
peer.pingConnection(connection)
continue
}
}
@@ -139,26 +113,16 @@ func autoPingAll() {
// if no ping was sent recently, send one now
if connection.LastPingOut.Before(thresholdPingOut1) {
peer.sendPing(connection)
peer.pingConnection(connection)
}
}
}
}
}
// sendPing sends a ping to the target peer
func (peer *PeerInfo) sendPing(connection *Connection) {
err := peer.sendConnection(&PacketRaw{Command: CommandPing}, connection)
connection.LastPingOut = time.Now()
if (connection.Status == ConnectionActive || connection.Status == ConnectionRedundant) && IsNetworkErrorFatal(err) {
peer.invalidateActiveConnection(connection)
}
}
// SendChatAll sends a text message to all peers
func SendChatAll(text string) {
for _, peer := range PeerlistGet() {
peer.send(&PacketRaw{Command: CommandChat, Payload: []byte(text)})
peer.Chat(text)
}
}