Todo: 集成多平台 解决因SaiNiu线程抢占资源问题 本地提交测试环境打包 和 正式打包脚本与正式环境打包bat 提交Python32环境包 改进多日志文件生成情况修改打包日志细节

Utils/PythonNew32/Lib/site-packages/win32/Demos/OpenEncryptedFileRaw.py

@@ -0,0 +1,66 @@
+import os
+
+import win32api
+import win32file
+import winerror
+
+
+def ReadCallback(input_buffer, data, buflen):
+    fnamein, fnameout, f = data
+    # print(fnamein, fnameout, buflen)
+    f.write(input_buffer)
+    return winerror.ERROR_SUCCESS
+
+
+def WriteCallback(output_buffer, data, buflen):
+    fnamebackup, fnameout, f = data
+    file_data = f.read(buflen)
+    ## returning 0 as len terminates WriteEncryptedFileRaw
+    output_len = len(file_data)
+    output_buffer[:output_len] = file_data
+    return winerror.ERROR_SUCCESS, output_len
+
+
+tmp_dir = win32api.GetTempPath()
+dst_dir = win32api.GetTempFileName(tmp_dir, "oef")[0]
+os.remove(dst_dir)
+os.mkdir(dst_dir)
+print("Destination dir:", dst_dir)
+
+## create an encrypted file
+fname = win32api.GetTempFileName(dst_dir, "ref")[0]
+print("orig file:", fname)
+f = open(fname, "w")
+f.write("xxxxxxxxxxxxxxxx\n" * 32768)
+f.close()
+## add a couple of extra data streams
+f = open(fname + ":stream_y", "w")
+f.write("yyyyyyyyyyyyyyyy\n" * 32768)
+f.close()
+f = open(fname + ":stream_z", "w")
+f.write("zzzzzzzzzzzzzzzz\n" * 32768)
+f.close()
+win32file.EncryptFile(fname)
+
+## backup raw data of encrypted file
+bkup_fname = win32api.GetTempFileName(dst_dir, "bef")[0]
+print("backup file:", bkup_fname)
+f = open(bkup_fname, "wb")
+ctxt = win32file.OpenEncryptedFileRaw(fname, 0)
+try:
+    win32file.ReadEncryptedFileRaw(ReadCallback, (fname, bkup_fname, f), ctxt)
+finally:
+    ## if context is not closed, file remains locked even if calling process is killed
+    win32file.CloseEncryptedFileRaw(ctxt)
+    f.close()
+
+## restore data from backup to new encrypted file
+dst_fname = win32api.GetTempFileName(dst_dir, "wef")[0]
+print("restored file:", dst_fname)
+f = open(bkup_fname, "rb")
+ctxtout = win32file.OpenEncryptedFileRaw(dst_fname, win32file.CREATE_FOR_IMPORT)
+try:
+    win32file.WriteEncryptedFileRaw(WriteCallback, (bkup_fname, dst_fname, f), ctxtout)
+finally:
+    win32file.CloseEncryptedFileRaw(ctxtout)
+    f.close()