add xtea impl

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "simple-crypto"]
 	path = simple-crypto
 	url = https://github.com/synodriver/simple-crypto
+[submodule "xtea-c"]
+	path = xtea-c
+	url = https://github.com/shixiongfei/xtea

changename.py

@@ -1,5 +1,8 @@
 import os
 
-for f in os.listdir('dist'):
-    if 'linux' in f:
-        os.rename(os.path.join('dist', f), os.path.join('dist', f.replace('linux', 'manylinux2014')))
+for f in os.listdir("dist"):
+    if "linux" in f:
+        os.rename(
+            os.path.join("dist", f),
+            os.path.join("dist", f.replace("linux", "manylinux2014")),
+        )

ftea/__init__.py

@@ -2,5 +2,6 @@
 Copyright (c) 2008-2021 synodriver <synodriver@gmail.com>
 """
 from ftea._tea import *
+from ftea._xtea import *
 
 __version__ = "0.1.5"

ftea/_tea.pyi

@@ -5,14 +5,18 @@ class TEA:
     def decrypt(self, text: bytes, sumtable: bytes) -> bytes: ...
     def decrypt_into(self, text: bytes, sumtable: bytes, out: bytearray) -> int: ...
     def decrypt_native_endian(self, text: bytes, sumtable: bytes) -> bytes: ...
-    def decrypt_native_endian_into(self,text: bytes, sumtable: bytes, out: bytearray) -> int: ...
+    def decrypt_native_endian_into(
+        self, text: bytes, sumtable: bytes, out: bytearray
+    ) -> int: ...
     def decrypt_qq(self, text: bytes) -> bytes: ...
     def decrypt_qq_into(self, text: bytes, out: bytearray) -> int: ...
     def encrypt(self, text: bytes, sumtable: bytes) -> bytes: ...
     def encrypt_into(self, text: bytes, sumtable: bytes, out: bytearray) -> int: ...
     def encrypt_native_endian(self, text: bytes, sumtable: bytes) -> bytes: ...
-    def encrypt_native_endian_into(self, text: bytes, sumtable: bytes, out: bytearray) -> int: ...
-    def encrypt_qq(self,  text: bytes) -> bytes: ...
+    def encrypt_native_endian_into(
+        self, text: bytes, sumtable: bytes, out: bytearray
+    ) -> int: ...
+    def encrypt_qq(self, text: bytes) -> bytes: ...
     def encrypt_qq_into(self, text: bytes, out: bytearray) -> int: ...
 
-def encrypt_len(src: int) -> int: ...
+def encrypt_len(src: int) -> int: ...

ftea/_tea.pyx

@@ -1,13 +1,15 @@
 # cython: language_level=3
-from libc.stdint cimport uint8_t, uint32_t, int64_t
-from libc.string cimport memcpy
 cimport cython
-
-from cpython.pycapsule cimport PyCapsule_New
+from cpython.bytes cimport PyBytes_AS_STRING, PyBytes_FromStringAndSize
 from cpython.object cimport PyObject
-from cpython.bytes cimport PyBytes_FromStringAndSize, PyBytes_AS_STRING
+from cpython.pycapsule cimport PyCapsule_New
+from libc.stdint cimport int64_t, uint8_t, uint32_t
+from libc.string cimport memcpy
+
+from ftea.tea cimport (SHOULD_SWAP, encrypt_qq_len, swap_uint32, tea_decrypt,
+                       tea_decrypt_native_endian, tea_decrypt_qq, tea_encrypt,
+                       tea_encrypt_native_endian, tea_encrypt_qq)
 
-from ftea.tea cimport tea_encrypt_qq,tea_encrypt, tea_encrypt_native_endian, tea_decrypt_qq,tea_decrypt,tea_decrypt_native_endian, encrypt_qq_len, swap_uint32, SHOULD_SWAP
 
 @cython.freelist(8)
 @cython.no_gc