更新 IDCardData 结构体字段类型为 uint8，并重构解码函数以支持 UCS-2/UTF-16LE 解码

electron/idcard-worker.js

@@ -5,35 +5,49 @@ const iconv = require("iconv-lite");
 
 // 定义结构体
 const IDCardData = koffi.struct("IDCardData", {
-  Name: koffi.array("char", 32),
-  Sex: koffi.array("char", 6),
-  Nation: koffi.array("char", 20),
-  Born: koffi.array("char", 18),
-  Address: koffi.array("char", 72),
-  IDCardNo: koffi.array("char", 38),
-  GrantDept: koffi.array("char", 32),
-  UserLifeBegin: koffi.array("char", 18),
-  UserLifeEnd: koffi.array("char", 18),
-  reserved: koffi.array("char", 38),
-  PhotoFileName: koffi.array("char", 255),
+  Name: koffi.array("uint8", 32),
+  Sex: koffi.array("uint8", 6),
+  Nation: koffi.array("uint8", 20),
+  Born: koffi.array("uint8", 18),
+  Address: koffi.array("uint8", 72),
+  IDCardNo: koffi.array("uint8", 38),
+  GrantDept: koffi.array("uint8", 32),
+  UserLifeBegin: koffi.array("uint8", 18),
+  UserLifeEnd: koffi.array("uint8", 18),
+  reserved: koffi.array("uint8", 38),
+  PhotoFileName: koffi.array("uint8", 255),
 });
 
 let lib = null;
 let running = false;
 
-// 解码 GBK 字符串
-function decodeGBK(buffer) {
-  // 找到第一个 null 字节 (0x00) 的位置
+// 解码字符串 (尝试 UCS-2/UTF-16LE)
+function decodeString(buffer) {
+  // 这里的 buffer 是 uint8 数组，先转为 Buffer
+  const buf = Buffer.from(buffer);
+
+  // 很多读卡器 DLL 返回的是 UCS-2 (UTF-16LE)
+  // 也有可能是 GBK。我们可以通过检查字节特征来判断，或者优先尝试 UCS-2
+  // UCS-2 的特征是每两个字节一个字符，对于 ASCII 字符，高字节通常是 0x00
+
+  // 尝试作为 UTF-16LE 解码
+  // 找到双 null 结尾 (0x00 0x00)
   let nullIndex = -1;
-  for (let i = 0; i < buffer.length; i++) {
-    if (buffer[i] === 0) {
+  for (let i = 0; i < buf.length - 1; i += 2) {
+    if (buf[i] === 0 && buf[i + 1] === 0) {
       nullIndex = i;
       break;
     }
   }
-  // 如果找到了 null，截取前面的部分；否则使用整个 buffer
-  const validBuffer = nullIndex !== -1 ? buffer.slice(0, nullIndex) : buffer;
-  return iconv.decode(validBuffer, "gbk").trim();
+  const validBuf16 = nullIndex !== -1 ? buf.slice(0, nullIndex) : buf;
+  const str16 = iconv.decode(validBuf16, "utf16le").trim();
+
+  // 如果解码出来的字符串看起来是乱码（包含很多 ）或者为空但 buffer 不为空，可能需要尝试 GBK
+  // 但通常 Syn_IDCardRead.dll 返回的是 UCS-2
+  // 让我们先打印一下原始 hex 以便调试
+  // parentPort.postMessage({ type: 'log', payload: `Hex: ${buf.slice(0, 10).toString('hex')}` });
+
+  return str16;
 }
 
 // 加载 DLL
@@ -188,16 +202,16 @@ async function startListen() {
 
       if (ret === 0 && data) {
         const payload = {
-          name: decodeGBK(Buffer.from(data.Name)),
-          sex: decodeGBK(Buffer.from(data.Sex)),
-          nation: decodeGBK(Buffer.from(data.Nation)),
-          born: decodeGBK(Buffer.from(data.Born)),
-          address: decodeGBK(Buffer.from(data.Address)),
-          id_card_no: decodeGBK(Buffer.from(data.IDCardNo)),
-          grant_dept: decodeGBK(Buffer.from(data.GrantDept)),
-          life_begin: decodeGBK(Buffer.from(data.UserLifeBegin)),
-          life_end: decodeGBK(Buffer.from(data.UserLifeEnd)),
-          photo_path: decodeGBK(Buffer.from(data.PhotoFileName)),
+          name: decodeString(data.Name),
+          sex: decodeString(data.Sex),
+          nation: decodeString(data.Nation),
+          born: decodeString(data.Born),
+          address: decodeString(data.Address),
+          id_card_no: decodeString(data.IDCardNo),
+          grant_dept: decodeString(data.GrantDept),
+          life_begin: decodeString(data.UserLifeBegin),
+          life_end: decodeString(data.UserLifeEnd),
+          photo_path: decodeString(data.PhotoFileName),
         };
 
         parentPort.postMessage({