Homestead/HomesteadGateway
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continuous send for simulators

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This commit is contained in:
Overlord
2025-12-08 06:58:43 +01:00
parent 786b217f05
commit 8e84523d4b
2 changed files with 188 additions and 63 deletions
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120
bot.go
View File

@@ -5,10 +5,14 @@ package main
import (
"encoding/json"
"flag"
"fmt"
"log"
"math/rand"
"net/url"
"os"
"os/signal"
"sync"
"sync/atomic"
"syscall"
"time"
@@ -18,8 +22,12 @@ import (
const (
gatewayURL = "ws://localhost:3333/sync"
apiKey = "gateway"
// must match the mod's channel id used by your mod simulator
channelID = "123456789"
channelID = "123456789"
)
var (
minInterval = 500 * time.Millisecond
maxInterval = 5 * time.Second
)
type Handshake struct {
@@ -28,7 +36,7 @@ type Handshake struct {
}
type BotHandshake struct {
ChannelId string `json:"channel_id"` // match gateway field exactly
ChannelId string `json:"channel_id"`
}
type GatewayAck struct {
@@ -56,12 +64,21 @@ type GatewayMessageIn struct {
ReceivedAt time.Time `json:"-"`
}
func randomDuration(min, max time.Duration) time.Duration {
if max <= min {
return min
}
diff := int64(max - min)
n := rand.Int63n(diff)
return min + time.Duration(n)
}
func main() {
var (
botID = flag.String("bot", "sim-bot-1", "bot id")
sendAfter = flag.Duration("send-after", 0, "optional: send a bot->mod message after this delay (e.g. 2s)")
sendMsg = flag.String("msg", "Hello from bot!", "optional bot->mod test message content")
)
rand.Seed(time.Now().UnixNano())
botID := flag.String("bot", "sim-bot-1", "bot id")
sendAfter := flag.Duration("send-after", 0, "optional: send a bot->mod message after this delay (e.g. 2s)")
sendMsg := flag.String("msg", "Hello from bot!", "optional bot->mod test message content")
flag.Parse()
interrupt := make(chan os.Signal, 1)
@@ -75,21 +92,25 @@ func main() {
q.Set("api_key", apiKey)
u.RawQuery = q.Encode()
log.Printf("Connecting to %s", u.String())
conn, _, err := websocket.DefaultDialer.Dial(u.String(), nil)
if err != nil {
log.Fatalf("Failed to connect: %v", err)
}
// we intentionally don't defer conn.Close() here immediately; we'll do on shutdown
log.Println("Connected to gateway")
defer conn.Close()
var writeMu sync.Mutex
// handle server pings by replying a Pong (safe)
conn.SetPingHandler(func(appData string) error {
log.Println("Received ping from server, sending pong")
return conn.WriteControl(websocket.PongMessage, []byte(appData), time.Now().Add(5*time.Second))
writeMu.Lock()
err := conn.WriteControl(websocket.PongMessage, []byte(appData), time.Now().Add(5*time.Second))
writeMu.Unlock()
if err != nil {
log.Printf("Failed to send pong: %v", err)
return err
}
return nil
})
// send bot handshake (must at least include bot_id)
bhs := BotHandshake{ChannelId: channelID}
data, err := json.Marshal(bhs)
if err != nil {
@@ -97,21 +118,22 @@ func main() {
log.Fatalf("Failed to marshal bot handshake: %v", err)
}
hs := Handshake{Type: "bot", Data: data}
writeMu.Lock()
if err := conn.WriteJSON(hs); err != nil {
writeMu.Unlock()
_ = conn.Close()
log.Fatalf("Failed to send handshake: %v", err)
}
log.Println("Handshake sent (bot)")
writeMu.Unlock()
// Instead of ReadJSON, read raw message so we can see whatever the server returns (or why it closes).
// This avoids a silent parsing failure if server returns non-JSON or closes immediately.
conn.SetReadDeadline(time.Now().Add(10 * time.Second))
msgType, raw, err := conn.ReadMessage()
if err != nil {
_ = conn.Close()
log.Fatalf("Failed to read handshake response: %v", err)
}
_ = conn.SetReadDeadline(time.Time{}) // clear deadline
_ = conn.SetReadDeadline(time.Time{})
if msgType == websocket.TextMessage || msgType == websocket.BinaryMessage {
log.Printf("Raw handshake reply: %s", string(raw))
@@ -122,11 +144,11 @@ func main() {
log.Printf("Parsed ack: status=%q, type=%q", ack.Status, ack.Type)
}
} else {
log.Printf("Handshake reply was control frame or unexpected type=%d", msgType)
log.Printf("Handshake reply type=%d", msgType)
}
// From here, start the normal read loop.
done := make(chan struct{})
go func() {
defer close(done)
for {
@@ -139,20 +161,20 @@ func main() {
}
return
}
if msgType == websocket.TextMessage || msgType == websocket.BinaryMessage {
log.Printf("Received from gateway: %s", string(message))
}
}
}()
// optionally send a bot->mod message after a delay
var msgCounter uint64 = 1
if *sendAfter > 0 {
go func() {
time.Sleep(*sendAfter)
msg := GatewayMessageIn{
MsgID: "bot-msg-001",
ID: channelID, // bot reports channel id as ID
MsgID: fmt.Sprintf("bot-msg-%06d", atomic.AddUint64(&msgCounter, 1)),
ID: channelID,
Author: User{
ID: *botID,
Name: "SimBot",
@@ -160,20 +182,55 @@ func main() {
Content: *sendMsg,
Ts: time.Now().UTC(),
}
// set a write deadline
writeMu.Lock()
_ = conn.SetWriteDeadline(time.Now().Add(5 * time.Second))
if err := conn.WriteJSON(msg); err != nil {
log.Printf("Failed to send bot->mod test message: %v", err)
return
} else {
log.Printf("Sent bot->mod test message (channel=%s)", channelID)
}
log.Printf("Sent bot->mod test message (channel=%s)", channelID)
_ = conn.SetWriteDeadline(time.Time{})
writeMu.Unlock()
}()
}
log.Println("Bot simulator running. Press Ctrl+C to exit.")
go func() {
for {
select {
case <-done:
return
default:
}
d := randomDuration(minInterval, maxInterval)
select {
case <-done:
return
case <-time.After(d):
msgNum := atomic.AddUint64(&msgCounter, 1)
msg := GatewayMessageIn{
MsgID: fmt.Sprintf("sim-bot-msg-%06d", msgNum),
ID: channelID,
Author: User{
ID: fmt.Sprintf("%s-%d", *botID, msgNum%1000),
Name: fmt.Sprintf("SimBot%d", msgNum%1000),
},
Content: fmt.Sprintf("Automated bot message #%d (delay %s)", msgNum, d),
Ts: time.Now().UTC(),
}
writeMu.Lock()
_ = conn.SetWriteDeadline(time.Now().Add(5 * time.Second))
if err := conn.WriteJSON(msg); err != nil {
writeMu.Unlock()
log.Printf("Failed to send automated bot message: %v", err)
return
}
_ = conn.SetWriteDeadline(time.Time{})
writeMu.Unlock()
log.Printf("Sent automated bot message %s", msg.MsgID)
}
}
}()
// Wait for interrupt or read loop done
for {
select {
case <-done:
@@ -182,8 +239,9 @@ func main() {
return
case <-interrupt:
log.Println("Interrupt received, closing connection...")
// politely close
writeMu.Lock()
_ = conn.WriteMessage(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.CloseNormalClosure, ""))
writeMu.Unlock()
select {
case <-done:
case <-time.After(time.Second):

131
sim.go
View File

@@ -4,10 +4,14 @@ package main
import (
"encoding/json"
"fmt"
"log"
"math/rand"
"net/url"
"os"
"os/signal"
"sync"
"sync/atomic"
"syscall"
"time"
@@ -22,6 +26,12 @@ const (
channelID = "123456789"
)
// send interval range (random between minInterval and maxInterval)
var (
minInterval = 500 * time.Millisecond
maxInterval = 5 * time.Second
)
type Handshake struct {
Type string `json:"type"`
Data json.RawMessage `json:"data"`
@@ -59,6 +69,8 @@ type GatewayMessageIn struct {
}
func main() {
rand.Seed(time.Now().UnixNano())
interrupt := make(chan os.Signal, 1)
signal.Notify(interrupt, os.Interrupt, syscall.SIGTERM)
@@ -80,19 +92,19 @@ func main() {
log.Println("Connected to gateway")
// respond to pings (server ping -> client must pong). Using SetPingHandler is fine,
// but WriteControl for Pong is acceptable too.
var writeMu sync.Mutex
conn.SetPingHandler(func(appData string) error {
log.Println("Received ping from server, sending pong")
err := conn.WriteControl(websocket.PongMessage, []byte(appData), time.Now().Add(5*time.Second))
if err != nil {
writeMu.Lock()
defer writeMu.Unlock()
if err := conn.WriteControl(websocket.PongMessage, []byte(appData), time.Now().Add(5*time.Second)); err != nil {
log.Printf("Failed to send pong: %v", err)
return err
}
return nil
})
// Build and send handshake including channel id
modHS := ModHandshake{
ServerID: serverID,
ChannelID: channelID,
@@ -107,12 +119,14 @@ func main() {
Data: modHSData,
}
writeMu.Lock()
if err := conn.WriteJSON(handshake); err != nil {
writeMu.Unlock()
log.Fatalf("Failed to send handshake: %v", err)
}
writeMu.Unlock()
log.Println("Handshake sent")
// Read acknowledgment (some servers might not reply with JSON; handle errors)
var ack GatewayAck
if err := conn.ReadJSON(&ack); err != nil {
log.Fatalf("Failed to read acknowledgment: %v", err)
@@ -129,62 +143,115 @@ func main() {
if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway, websocket.CloseNormalClosure) {
log.Printf("WebSocket error: %v", err)
} else {
log.Printf("Connection closed: %v", err)
log.Printf("Connection closed/read error: %v", err)
}
return
}
if messageType == websocket.TextMessage || messageType == websocket.BinaryMessage {
switch messageType {
case websocket.TextMessage, websocket.BinaryMessage:
log.Printf("Received from server: %s", string(message))
default:
}
}
}()
// Optional: send a test message after connecting
time.Sleep(1 * time.Second)
testMsg := GatewayMessageIn{
MsgID: "test-msg-001",
ID: serverID,
Destination: Destination{
ID: channelID,
},
Author: User{
ID: "player-uuid-123",
Name: "TestPlayer",
},
Content: "Hello from simulated mod!",
Ts: time.Now().UTC(),
}
var msgCounter uint64 = 1
if err := conn.WriteJSON(testMsg); err != nil {
log.Printf("Failed to send test message: %v", err)
} else {
log.Println("Sent test message to gateway")
}
func() {
testMsg := GatewayMessageIn{
MsgID: fmt.Sprintf("test-msg-%06d", atomic.AddUint64(&msgCounter, 1)),
ID: serverID,
Destination: Destination{
ID: channelID,
},
Author: User{
ID: "player-uuid-123",
Name: "TestPlayer",
},
Content: "Hello from simulated mod!",
Ts: time.Now().UTC(),
}
log.Println("Connection established. Responding to pings. Press Ctrl+C to disconnect.")
writeMu.Lock()
if err := conn.WriteJSON(testMsg); err != nil {
log.Printf("Failed to send test message: %v", err)
} else {
log.Println("Sent initial test message to gateway")
}
writeMu.Unlock()
}()
go func() {
for {
d := randomDuration(minInterval, maxInterval)
select {
case <-done:
return
case <-time.After(d):
// build message
msgNum := atomic.AddUint64(&msgCounter, 1)
msg := GatewayMessageIn{
MsgID: fmt.Sprintf("sim-msg-%06d", msgNum),
ID: serverID,
Destination: Destination{
ID: channelID,
},
Author: User{
ID: fmt.Sprintf("sim-user-%d", msgNum%1000),
Name: fmt.Sprintf("SimUser%d", msgNum%1000),
},
Content: fmt.Sprintf("Random interval message #%d (delay %s)", msgNum, d),
Ts: time.Now().UTC(),
}
writeMu.Lock()
if err := conn.WriteJSON(msg); err != nil {
log.Printf("Failed to send simulated message: %v", err)
writeMu.Unlock()
return
}
writeMu.Unlock()
log.Printf("Sent simulated message %s (next wait up to %s)", msg.MsgID, maxInterval)
}
}
}()
log.Println("Connection established. Sending simulated messages at random intervals. Press Ctrl+C to disconnect.")
for {
select {
case <-done:
log.Println("Connection closed")
log.Println("Connection read loop closed, exiting")
return
case <-interrupt:
log.Println("Interrupt received, closing connection...")
writeMu.Lock()
err := conn.WriteMessage(
websocket.CloseMessage,
websocket.FormatCloseMessage(websocket.CloseNormalClosure, ""),
)
writeMu.Unlock()
if err != nil {
log.Printf("Write close error: %v", err)
return
}
select {
case <-done:
case <-time.After(time.Second):
case <-time.After(1 * time.Second):
}
return
}
}
}
func randomDuration(min, max time.Duration) time.Duration {
if max <= min {
return min
}
diff := int64(max - min)
n := rand.Int63n(diff)
return min + time.Duration(n)
}