feat: 重写喷码通讯为伟迪捷1880 ASCII协议, 配置改由前端传入

- 原 CoderClient 用的是 Domino 1000 系列 STX/ETX 二进制帧, 不适用于 1880
- 改为 ASCII '|' 分隔 + <CR> 结尾, 实现 SLA/JDA/CQI/JDI/SST/GST 等指令
- send_to_coder 把多条 commands 合并成单帧 JDA 一次下发
- 配合模型字段移除, IP/端口/用户区由请求 body 提供, 不再走模板回退

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/cm/coder.py

@@ -1,14 +1,14 @@
 """
-1000 系列喷码机网口通讯封装
-协议: STX(0x02) + 指令 + 数据 + ETX(0x03)
-反馈: $XX 成功 / !XX 失败 (XX 为两位校验)
+伟迪捷 1880 喷码机 ASCII 协议封装
+
+帧格式: 纯 ASCII, 字段以 '|' 分隔, 整帧以 <CR>(0x0D) 结尾
+- 写指令(SLA/JDA/CQI/JDI/SST/SNO) 通常无回包
+- 查询指令(GST/GFT/GJD) 回包同样以 <CR> 结尾
 """
 import socket
 from rest_framework.exceptions import ParseError
 
-STX = b"\x02"
-ETX = b"\x03"
-LF = b"\x0a"
+CR = b"\x0d"
 
 
 class CoderError(ParseError):
@@ -18,53 +18,135 @@ class CoderError(ParseError):
 class CoderClient:
     def __init__(self, ip: str, port: int = 3100, timeout: float = 2.0):
         if not ip:
-            raise CoderError("打码器IP未配置")
+            raise CoderError("喷码IP未配置")
         self.ip = ip
         self.port = port
         self.timeout = timeout
 
-    def _send(self, frame: bytes) -> bytes:
+    def _send(self, frame: bytes, expect_reply: bool = False) -> bytes:
         try:
             with socket.create_connection((self.ip, self.port), timeout=self.timeout) as s:
                 s.sendall(frame)
-                return s.recv(64)
+                if not expect_reply:
+                    return b""
+                buf = b""
+                while CR not in buf:
+                    chunk = s.recv(256)
+                    if not chunk:
+                        break
+                    buf += chunk
+                return buf
         except (socket.timeout, OSError) as e:
-            raise CoderError(f"打码器通讯失败 {self.ip}:{self.port} - {e}")
+            raise CoderError(f"喷码通讯失败 {self.ip}:{self.port} - {e}")
 
     @staticmethod
-    def _check_ack(resp: bytes):
-        if not resp:
-            raise CoderError("打码器无响应")
-        head = resp[:1]
-        if head == b"$":
-            return True
-        if head == b"!":
-            raise CoderError(f"打码器返回失败: {resp!r}")
-        raise CoderError(f"打码器响应不识别: {resp!r}")
-
-    @staticmethod
-    def _encode_payload(value: str, label: str) -> bytes:
-        if any(c in value for c in ("\x02", "\x03", "\x0a")):
-            raise CoderError(f"{label}含控制字符(STX/ETX/LF), 会破坏帧结构")
+    def _encode(text: str, label: str) -> bytes:
+        if "\r" in text or "\n" in text:
+            raise CoderError(f"{label}含 CR/LF, 会破坏帧结构")
+        if "|" in text:
+            raise CoderError(f"{label}含 '|', 与 1880 分隔符冲突")
         try:
-            return value.encode("latin-1")
+            return text.encode("latin-1")
         except UnicodeEncodeError as e:
             raise CoderError(f"{label}含喷码机不支持的字符: {e}")
 
-    def update_field(self, field_name: str, content: str) -> bool:
-        """更新用户区: 02 55 <field> 0A <content> 03"""
-        frame = STX + b"\x55" + self._encode_payload(field_name, "用户区名") + LF + self._encode_payload(content, "喷印内容") + ETX
-        return self._check_ack(self._send(frame))
+    def send_command(self, command: str, expect_reply: bool = False) -> bytes:
+        """直接下发一条已拼装好的 1880 指令(不含末尾 CR), 由本方法统一补 CR。"""
+        if "\r" in command or "\n" in command:
+            raise CoderError("指令含 CR/LF, 由 send_command 统一补 CR, 不要手动拼")
+        return self._send(command.encode("latin-1") + CR, expect_reply=expect_reply)
 
-    def select_message(self, message_name: str) -> bool:
-        """选择信息: 02 4D <name> 03"""
-        frame = STX + b"\x4d" + self._encode_payload(message_name, "信息名") + ETX
-        return self._check_ack(self._send(frame))
+    def select_job(self, job_name: str):
+        """SLA|<jobname>|<CR>  选择信息模板"""
+        self._send(b"SLA|" + self._encode(job_name, "模板名") + b"|" + CR)
 
-    def get_status(self) -> bytes:
-        """获取喷码机状态: 02 45 03"""
-        return self._send(STX + b"\x45" + ETX)
+    def update_fields(self, fields: dict):
+        """JDA|<field>=<value>|...|<CR>  一帧更新多个用户区"""
+        if not fields:
+            return
+        parts = [b"JDA"]
+        for k, v in fields.items():
+            parts.append(self._encode(str(k), "用户区名") + b"=" + self._encode(str(v), "喷印内容"))
+        self._send(b"|".join(parts) + b"|" + CR)
 
-    def send_raw(self, frame_str: str) -> bytes:
-        """发送任意已拼好的帧字符串(不含 STX/ETX), 自动补头尾"""
-        return self._send(STX + frame_str.encode("ascii") + ETX)
+    def clear_queue(self):
+        """CQI<CR>  清空喷码机内部缓存队列"""
+        self._send(b"CQI" + CR)
+
+    def push_queue(self, fields: dict):
+        """JDI|1|<field>=<value>|...|<CR>  入队列数据"""
+        if not fields:
+            return
+        parts = [b"JDI", b"1"]
+        for k, v in fields.items():
+            parts.append(self._encode(str(k), "用户区名") + b"=" + self._encode(str(v), "喷印内容"))
+        self._send(b"|".join(parts) + b"|" + CR)
+
+    def set_state(self, state: int):
+        """SST|<State>|<CR>  0关机 1开机 3运行 4离线"""
+        self._send(b"SST|" + str(int(state)).encode("ascii") + b"|" + CR)
+
+    def register_print_callback(self):
+        """SNO|PRC|1|<CR>  注册打印完成反馈, 之后喷码机每打印一次会回 PRC<CR>"""
+        self._send(b"SNO|PRC|1|" + CR)
+
+    def get_status(self) -> dict:
+        """GST|<CR> -> STS|<overall>|<error>|<currentjob>|<batchcount>|<totalcount>|<CR>"""
+        resp = self._send(b"GST|" + CR, expect_reply=True)
+        parts = resp.rstrip(b"\r\n").decode("latin-1").split("|")
+        if not parts or parts[0] != "STS" or len(parts) < 6:
+            raise CoderError(f"GST 响应不识别: {resp!r}")
+        try:
+            return {
+                "overall": int(parts[1]),
+                "error": int(parts[2]),
+                "current_job": parts[3],
+                "batch_count": int(parts[4]),
+                "total_count": int(parts[5]),
+            }
+        except ValueError as e:
+            raise CoderError(f"GST 响应解析失败: {resp!r} - {e}")
+
+    def get_faults(self) -> list:
+        """GFT|<CR> -> FLT|<count>|[<code>|<clearable>|<title>|]*<CR>"""
+        resp = self._send(b"GFT|" + CR, expect_reply=True)
+        parts = resp.rstrip(b"\r\n").decode("latin-1").split("|")
+        if not parts or parts[0] != "FLT" or len(parts) < 2:
+            raise CoderError(f"GFT 响应不识别: {resp!r}")
+        try:
+            count = int(parts[1])
+        except ValueError as e:
+            raise CoderError(f"GFT 响应解析失败: {resp!r} - {e}")
+        faults = []
+        for i in range(count):
+            base = 2 + i * 3
+            if base + 2 >= len(parts):
+                break
+            faults.append({
+                "code": parts[base],
+                "clearable": parts[base + 1] == "1",
+                "title": parts[base + 2],
+            })
+        return faults
+
+    def get_current_job(self) -> dict:
+        """GJD|<CR> -> JDL|<count>|<field>=<value>|...|<CR>"""
+        resp = self._send(b"GJD|" + CR, expect_reply=True)
+        parts = resp.rstrip(b"\r\n").decode("latin-1").split("|")
+        if not parts or parts[0] != "JDL" or len(parts) < 2:
+            raise CoderError(f"GJD 响应不识别: {resp!r}")
+        try:
+            count = int(parts[1])
+        except ValueError as e:
+            raise CoderError(f"GJD 响应解析失败: {resp!r} - {e}")
+        fields = {}
+        for i in range(count):
+            idx = 2 + i
+            if idx >= len(parts):
+                break
+            pair = parts[idx]
+            if "=" not in pair:
+                continue
+            k, v = pair.split("=", 1)
+            fields[k] = v
+        return fields

apps/cm/serializers.py

@@ -19,9 +19,9 @@ class Tid2Serializer(serializers.Serializer):
 
 class CoderSendSerializer(serializers.Serializer):
     tdata = serializers.JSONField(label='模板数据', required=False, default=dict)
-    coder_ip = serializers.IPAddressField(label='打码器IP')
-    coder_port = serializers.IntegerField(label='打码器端口', required=False, allow_null=True)
-    coder_field = serializers.CharField(label='用户区名', required=False, allow_null=True)
+    coder_ip = serializers.IPAddressField(label='喷码IP')
+    coder_port = serializers.IntegerField(label='喷码端口', required=False, allow_null=True)
+    coder_field = serializers.CharField(label='默认用户区名', required=False, allow_null=True)
 
 
 class LabelMatSerializer(serializers.ModelSerializer):

apps/cm/views.py

@@ -118,10 +118,11 @@ class LabelTemplateViewSet(CustomModelViewSet):
     @action(methods=["post"], detail=True, serializer_class=CoderSendSerializer, perms_map={"post": "*"})
     def send_to_coder(self, request, pk=None, *args, **kwargs):
         """
-        下发指令到打码器
+        下发指令到伟迪捷 1880 喷码机
 
-        按模板 commands 用 tdata 格式化后, 通过模板上配置的 IP/端口下发到 1000 系列喷码机用户区。
-        body 中的 coder_ip/coder_port/coder_field 可临时覆盖模板配置。
+        按模板 commands 用 tdata 格式化后, 解析为 <字段>=<内容> 对, 合并成单帧 JDA 下发。
+        commands 中不含 '=' 的元素, 会绑定到默认 coder_field 上。
+        IP/端口/字段全部由请求 body 提供。
         """
         sr = CoderSendSerializer(data=request.data)
         sr.is_valid(raise_exception=True)
@@ -129,18 +130,22 @@ class LabelTemplateViewSet(CustomModelViewSet):
         lt: LabelTemplate = self.get_object()
 
         ip = vdata.get("coder_ip")
-        port = vdata.get("coder_port") or 3000
+        port = vdata.get("coder_port") or 3100
         field = vdata.get("coder_field") or "1"
-        if not ip:
-            raise ParseError("模板未配置打码器IP, 也未在请求中提供 coder_ip")
 
         commands = LabelTemplate.gen_commands(lt.id, None, vdata.get("tdata") or {})
         if not commands:
             raise ParseError("模板未生成任何指令")
 
+        fields = {}
+        for item in commands:
+            text = str(item)
+            if "=" in text:
+                k, v = text.split("=", 1)
+                fields[k.strip()] = v
+            else:
+                fields[field] = text
+
         client = CoderClient(ip=ip, port=port)
-        results = []
-        for content in commands:
-            client.update_field(field, content)
-            results.append(content)
-        return Response({"sent": results, "ip": ip, "port": port, "field": field})
+        client.update_fields(fields)
+        return Response({"sent": fields, "ip": ip, "port": port})