chore (pyqdes): 合并代码仓库

deps/pyqdes/main.cpp

@@ -0,0 +1,67 @@
+#include "des.cpp"
+#include <Python.h>
+#define PY_SSIZE_T_CLEAN
+unsigned char KEY1[] = "!@#)(NHLiuy*$%^&";
+unsigned char KEY2[] = "123ZXC!@#)(*$%^&";
+unsigned char KEY3[] = "!@#)(*$%^&abcDEF";
+
+int func_des(unsigned char *buff, unsigned char *key, int len)
+{
+  BYTE schedule[16][6];
+  des_key_setup(key, schedule, DES_ENCRYPT);
+  for (int i = 0; i < len; i += 8)
+    des_crypt(buff + i, buff + i, schedule);
+  return 0;
+}
+
+int func_ddes(unsigned char *buff, unsigned char *key, int len)
+{
+  BYTE schedule[16][6];
+  des_key_setup(key, schedule, DES_DECRYPT);
+  for (int i = 0; i < len; i += 8)
+    des_crypt(buff + i, buff + i, schedule);
+  return 0;
+}
+
+void LyricDecode_(unsigned char *content, int len)
+{
+  func_ddes(content, KEY1, len);
+  func_des(content, KEY2, len);
+  func_ddes(content, KEY3, len);
+}
+
+static PyObject* lyric_decode(PyObject* self, PyObject* args) {
+    const char* content;
+    int len;
+
+    // Parse arguments
+    if (!PyArg_ParseTuple(args, "s#", &content, &len)) {
+        return NULL;
+    }
+
+    // Call the C function
+    LyricDecode_((unsigned char*)content, len);
+
+    // Return the result as bytes
+    return Py_BuildValue("y#", content, len);
+}
+
+// Method table
+static PyMethodDef module_methods[] = {
+    {"LyricDecode", lyric_decode, METH_VARARGS, "QRC Decrypt."},
+    {NULL, NULL, 0, NULL} /* Sentinel */
+};
+
+// Module initialization function
+static struct PyModuleDef lyric_decoder_module = {
+    PyModuleDef_HEAD_INIT,
+    "qdes",
+    NULL,
+    -1,
+    module_methods
+};
+
+// Module initialization
+PyMODINIT_FUNC PyInit_qdes(void) {
+    return PyModule_Create(&lyric_decoder_module);
+}