From 01d0be7004c73275647c0e72100e0c27cda11347 Mon Sep 17 00:00:00 2001 From: simon Date: Sat, 26 Jul 2025 10:35:21 +0200 Subject: [PATCH] Rebuild Python Tool in Go --- goTool/go.mod | 24 ++++ goTool/go.sum | 124 +++++++++++++++++++ goTool/main.go | 318 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 466 insertions(+) create mode 100644 goTool/go.mod create mode 100644 goTool/go.sum create mode 100644 goTool/main.go diff --git a/goTool/go.mod b/goTool/go.mod new file mode 100644 index 0000000..865a263 --- /dev/null +++ b/goTool/go.mod @@ -0,0 +1,24 @@ +module alox.tool + +go 1.24.5 + +require ( + github.com/pterm/pterm v0.12.81 + go.bug.st/serial v1.6.4 +) + +require ( + atomicgo.dev/cursor v0.2.0 // indirect + atomicgo.dev/keyboard v0.2.9 // indirect + atomicgo.dev/schedule v0.1.0 // indirect + github.com/containerd/console v1.0.5 // indirect + github.com/creack/goselect v0.1.2 // indirect + github.com/gookit/color v1.5.4 // indirect + github.com/lithammer/fuzzysearch v1.1.8 // indirect + github.com/mattn/go-runewidth v0.0.16 // indirect + github.com/rivo/uniseg v0.4.7 // indirect + github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect + golang.org/x/sys v0.33.0 // indirect + golang.org/x/term v0.32.0 // indirect + golang.org/x/text v0.26.0 // indirect +) diff --git a/goTool/go.sum b/goTool/go.sum new file mode 100644 index 0000000..d7456b5 --- /dev/null +++ b/goTool/go.sum @@ -0,0 +1,124 @@ +atomicgo.dev/assert v0.0.2 h1:FiKeMiZSgRrZsPo9qn/7vmr7mCsh5SZyXY4YGYiYwrg= +atomicgo.dev/assert v0.0.2/go.mod h1:ut4NcI3QDdJtlmAxQULOmA13Gz6e2DWbSAS8RUOmNYQ= +atomicgo.dev/cursor v0.2.0 h1:H6XN5alUJ52FZZUkI7AlJbUc1aW38GWZalpYRPpoPOw= +atomicgo.dev/cursor v0.2.0/go.mod h1:Lr4ZJB3U7DfPPOkbH7/6TOtJ4vFGHlgj1nc+n900IpU= +atomicgo.dev/keyboard v0.2.9 h1:tOsIid3nlPLZ3lwgG8KZMp/SFmr7P0ssEN5JUsm78K8= +atomicgo.dev/keyboard v0.2.9/go.mod h1:BC4w9g00XkxH/f1HXhW2sXmJFOCWbKn9xrOunSFtExQ= +atomicgo.dev/schedule v0.1.0 h1:nTthAbhZS5YZmgYbb2+DH8uQIZcTlIrd4eYr3UQxEjs= +atomicgo.dev/schedule v0.1.0/go.mod h1:xeUa3oAkiuHYh8bKiQBRojqAMq3PXXbJujjb0hw8pEU= +github.com/MarvinJWendt/testza v0.1.0/go.mod h1:7AxNvlfeHP7Z/hDQ5JtE3OKYT3XFUeLCDE2DQninSqs= +github.com/MarvinJWendt/testza v0.2.1/go.mod h1:God7bhG8n6uQxwdScay+gjm9/LnO4D3kkcZX4hv9Rp8= +github.com/MarvinJWendt/testza v0.2.8/go.mod h1:nwIcjmr0Zz+Rcwfh3/4UhBp7ePKVhuBExvZqnKYWlII= +github.com/MarvinJWendt/testza v0.2.10/go.mod h1:pd+VWsoGUiFtq+hRKSU1Bktnn+DMCSrDrXDpX2bG66k= +github.com/MarvinJWendt/testza v0.2.12/go.mod h1:JOIegYyV7rX+7VZ9r77L/eH6CfJHHzXjB69adAhzZkI= +github.com/MarvinJWendt/testza v0.3.0/go.mod h1:eFcL4I0idjtIx8P9C6KkAuLgATNKpX4/2oUqKc6bF2c= +github.com/MarvinJWendt/testza v0.4.2/go.mod h1:mSdhXiKH8sg/gQehJ63bINcCKp7RtYewEjXsvsVUPbE= +github.com/MarvinJWendt/testza v0.5.2 h1:53KDo64C1z/h/d/stCYCPY69bt/OSwjq5KpFNwi+zB4= +github.com/MarvinJWendt/testza v0.5.2/go.mod h1:xu53QFE5sCdjtMCKk8YMQ2MnymimEctc4n3EjyIYvEY= 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h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= diff --git a/goTool/main.go b/goTool/main.go new file mode 100644 index 0000000..c34c6fc --- /dev/null +++ b/goTool/main.go @@ -0,0 +1,318 @@ +package main + +import ( + "context" + "encoding/binary" + "fmt" + "log" + + "github.com/pterm/pterm" + "go.bug.st/serial" +) + +type ParserState int + +const ( + WAITING_FOR_START_BYTE ParserState = iota + ESCAPED_MESSAGE_ID + GET_MESSAGE_ID + IN_PAYLOD + ESCAPED_PAYLOAD_BYTE +) + +const ( + START_BYTE = 0xAA + ESCAPE_BYTE = 0xBB + END_BYTE = 0xCC +) + +type ParseError int + +const ( + WRONG_CHECKSUM ParseError = iota + UNEXPECETD_BYTE +) + +type MessageReceive struct { + raw_message []byte + parsed_message []byte + checksum byte + error ParseError + state ParserState + write_index int + raw_write_index int +} + +func initMessageReceive(mr *MessageReceive) { + mr.raw_message = make([]byte, 1024*4) + mr.parsed_message = make([]byte, 1024*4) + mr.checksum = 0 + mr.error = 0 + mr.write_index = 0 + mr.raw_write_index = 0 + mr.state = WAITING_FOR_START_BYTE +} + +func addByteToRawBuffer(mr *MessageReceive, pbyte byte) { + mr.raw_message[mr.raw_write_index] = pbyte + mr.raw_write_index += 1 +} +func addByteToParsedBuffer(mr *MessageReceive, pbyte byte) { + mr.parsed_message[mr.write_index] = pbyte + mr.write_index += 1 + mr.checksum ^= pbyte +} + +func parse_03_payload(payloadBuffer []byte, payload_len int) { + + type payload_data struct { + ClientID uint8 + IsAvailable uint8 + SlotIsUsed uint8 + MACAddr [6]uint8 + LastPing uint32 + LastSuccessfulPing uint32 + Version uint16 + } + + tableHeaders := pterm.TableData{ + {"Client ID", "Verfügbar", "Genutzt", "MAC-Adresse", "Last Ping", "Letzter Erfolg Ping", "Version"}, + } + + tableData := tableHeaders + + currentOffset := 2 + + const ( + ENTRY_LEN = 19 + OFFSET_MAC_ADDR = 3 + OFFSET_LAST_PING = 9 + OFFSET_LAST_SUCCESS_PING = 13 + OFFSET_VERSION = 17 + ) + + for i := 0; i < int(payloadBuffer[1]); i++ { + if currentOffset+ENTRY_LEN > payload_len { + fmt.Printf("Fehler: Payload zu kurz für Client-Eintrag %d\n", i) + break + } + + entryBytes := payloadBuffer[currentOffset : currentOffset+ENTRY_LEN] + + var clientData payload_data + + clientData.ClientID = entryBytes[0] + clientData.IsAvailable = entryBytes[1] + clientData.SlotIsUsed = entryBytes[2] + + copy(clientData.MACAddr[:], entryBytes[OFFSET_MAC_ADDR:OFFSET_MAC_ADDR+6]) + + clientData.LastPing = binary.LittleEndian.Uint32(entryBytes[OFFSET_LAST_PING : OFFSET_LAST_PING+4]) + clientData.LastSuccessfulPing = binary.LittleEndian.Uint32(entryBytes[OFFSET_LAST_SUCCESS_PING : OFFSET_LAST_SUCCESS_PING+4]) + clientData.Version = binary.LittleEndian.Uint16(entryBytes[OFFSET_VERSION : OFFSET_VERSION+2]) + + // Füge die geparsten Daten als String-Slice zur Tabelle hinzu + tableData = append(tableData, []string{ + fmt.Sprintf("%d", clientData.ClientID), + fmt.Sprintf("%d", clientData.IsAvailable), + fmt.Sprintf("%d", clientData.SlotIsUsed), + fmt.Sprintf("%X:%X:%X:%X:%X:%X", + clientData.MACAddr[0], clientData.MACAddr[1], clientData.MACAddr[2], + clientData.MACAddr[3], clientData.MACAddr[4], clientData.MACAddr[5]), + fmt.Sprintf("%d", clientData.LastPing), + fmt.Sprintf("%d", clientData.LastSuccessfulPing), + fmt.Sprintf("%d", clientData.Version), + }) + + currentOffset += ENTRY_LEN + } + err := pterm.DefaultTable.WithHasHeader().WithBoxed().WithData(tableData).Render() + if err != nil { + fmt.Printf("Fehler beim Rendern der Tabelle: %s\n", err) + } +} + +func message_receive_callback(mr MessageReceive) { + log.Printf("Message Received: % 02X\n", mr.raw_message[:mr.raw_write_index]) + switch mr.parsed_message[0] { + case 0x01: + break + case 0x02: + break + case 0x03: + parse_03_payload(mr.parsed_message, mr.write_index) + break + } +} + +func message_receive_failed_callback(mr MessageReceive) { + log.Printf("Error Message Received: % 02X\n", mr.raw_message[:mr.raw_write_index]) +} + +func parseByte(mr *MessageReceive, pbyte byte) { + addByteToRawBuffer(mr, pbyte) + switch mr.state { + case WAITING_FOR_START_BYTE: + if pbyte == START_BYTE { + initMessageReceive(mr) + mr.state = GET_MESSAGE_ID + addByteToRawBuffer(mr, pbyte) + } + // ignore every other byte + break + case GET_MESSAGE_ID: + if pbyte == ESCAPE_BYTE { + mr.state = ESCAPED_MESSAGE_ID + } else { + addByteToParsedBuffer(mr, pbyte) + mr.state = IN_PAYLOD + } + break + case ESCAPED_MESSAGE_ID: + addByteToParsedBuffer(mr, pbyte) + mr.state = IN_PAYLOD + break + case IN_PAYLOD: + if pbyte == ESCAPE_BYTE { + mr.state = ESCAPED_PAYLOAD_BYTE + break + } + if pbyte == START_BYTE { + mr.error = UNEXPECETD_BYTE + message_receive_failed_callback(*mr) + initMessageReceive(mr) + return + } + if pbyte == END_BYTE { + if mr.checksum != 0 { // checksum wrong + mr.error = WRONG_CHECKSUM + message_receive_failed_callback(*mr) + initMessageReceive(mr) + return + } + message_receive_callback(*mr) + initMessageReceive(mr) + break + } + // normal case + addByteToParsedBuffer(mr, pbyte) + break + case ESCAPED_PAYLOAD_BYTE: + addByteToParsedBuffer(mr, pbyte) + mr.state = IN_PAYLOD + break + default: + panic(fmt.Sprintf("unexpected main.ParserState: %#v", mr.state)) + } +} + +func buildMessage(payloadBuffer []byte, payload_len int, sendBuffer []byte) int { + var writeIndex int + checksum := byte(0x00) + writeIndex = 0 + sendBuffer[writeIndex] = START_BYTE + writeIndex++ + for i := range payload_len { + b := payloadBuffer[i] + if b == START_BYTE || b == ESCAPE_BYTE || b == END_BYTE { + sendBuffer[writeIndex] = ESCAPE_BYTE + writeIndex++ + } + sendBuffer[writeIndex] = b + writeIndex++ + checksum ^= b + } + sendBuffer[writeIndex] = checksum + writeIndex++ + sendBuffer[writeIndex] = END_BYTE + writeIndex++ + return writeIndex +} + +func sendMessage(port serial.Port, sendBuffer []byte) { + n, err := port.Write(sendBuffer) + if err != nil { + log.Printf("Could not Send %v to Serial Port", sendBuffer) + } + if n < len(sendBuffer) { + log.Printf("Did not send all data %v, only send %v", len(sendBuffer), n) + } + fmt.Printf("Send Message % 02X\n", sendBuffer[:n]) +} + +func main() { + mode := &serial.Mode{ + BaudRate: 115200, + } + port, err := serial.Open("/dev/ttyUSB0", mode) + if err != nil { + log.Fatal(err) + } + + ctx, cancle := context.WithCancel(context.Background()) + defer cancle() + + go func() { + buff := make([]byte, 1024) + mr := MessageReceive{} + initMessageReceive(&mr) + for { + select { + case <-ctx.Done(): + return + default: + n, err := port.Read(buff) + if err != nil { + log.Print(err) + break + } + if n == 0 { + fmt.Println("\nEOF") + break + } + for _, b := range buff[:n] { + parseByte(&mr, b) + } + //fmt.Printf("Empfangen: % 02X\n", string(buff[:n])) + break + } + } + }() + + for { + var input string + _, err := fmt.Scanln(&input) + if err != nil { + log.Fatalf("Could not read from stdin") + } + fmt.Printf("Input %v", input) + + switch input { + case "q": + return + case "1": + payload_buffer := make([]byte, 1024) + send_buffer := make([]byte, 1024) + payload_buffer[0] = 0x01 + n := buildMessage(payload_buffer, 1, send_buffer) + sendMessage(port, send_buffer[:n]) + break + case "2": + payload_buffer := make([]byte, 1024) + send_buffer := make([]byte, 1024) + payload_buffer[0] = 0x02 + n := buildMessage(payload_buffer, 1, send_buffer) + sendMessage(port, send_buffer[:n]) + break + case "3": + payload_buffer := make([]byte, 1024) + send_buffer := make([]byte, 1024) + payload_buffer[0] = 0x03 + n := buildMessage(payload_buffer, 1, send_buffer) + sendMessage(port, send_buffer[:n]) + break + default: + fmt.Printf("Not a valid input") + } + } +}