Uploaded Test files

2020-11-12 11:05:57 -05:00 · 2020-11-12 11:05:57 -05:00 · 2e81cb7d99
commit 2e81cb7d99
parent f584ad9d97
16627 changed files with 2065359 additions and 102444 deletions
--- a/venv/Lib/site-packages/win32/Demos/BackupSeek_streamheaders.py
+++ b/venv/Lib/site-packages/win32/Demos/BackupSeek_streamheaders.py
@ -0,0 +1,85 @@
+## demonstrates using BackupSeek to enumerate data streams for a file
+import win32file, win32api, win32con
+from win32com import storagecon
+import pythoncom, pywintypes
+import struct, traceback
+
+stream_types={
+    win32con.BACKUP_DATA:"Standard data", 
+    win32con.BACKUP_EA_DATA:"Extended attribute data", 
+    win32con.BACKUP_SECURITY_DATA:"Security descriptor data", 
+    win32con.BACKUP_ALTERNATE_DATA:"Alternative data streams", 
+    win32con.BACKUP_LINK:"Hard link information",
+    win32con.BACKUP_PROPERTY_DATA:"Property data",
+    win32con.BACKUP_OBJECT_ID:"Objects identifiers",
+    win32con.BACKUP_REPARSE_DATA:"Reparse points",
+    win32con.BACKUP_SPARSE_BLOCK:"Sparse file"
+}
+
+tempdir=win32api.GetTempPath()
+tempfile=win32api.GetTempFileName(tempdir,'bkr')[0]
+print('Filename:',tempfile)
+
+f=open(tempfile,'w')
+f.write('some random junk'+'x'*100)
+f.close()
+
+f=open(tempfile+':streamdata','w')
+f.write('data written to alternate stream'+'y'*100)
+f.close()
+
+f=open(tempfile+':anotherstream','w')
+f.write('z'*200)
+f.close()
+
+## add Summary Information, which is stored as a separate stream
+m=storagecon.STGM_READWRITE | storagecon.STGM_SHARE_EXCLUSIVE |storagecon.STGM_DIRECT
+pss=pythoncom.StgOpenStorageEx(tempfile, m, storagecon.STGFMT_FILE, 0 , pythoncom.IID_IPropertySetStorage,None)
+ps=pss.Create(pythoncom.FMTID_SummaryInformation,pythoncom.IID_IPropertyStorage,0,storagecon.STGM_READWRITE|storagecon.STGM_SHARE_EXCLUSIVE)
+ps.WriteMultiple((storagecon.PIDSI_KEYWORDS,storagecon.PIDSI_COMMENTS),('keywords','comments'))
+ps=None
+pss=None
+
+sa=pywintypes.SECURITY_ATTRIBUTES()
+sa.bInheritHandle=False
+h=win32file.CreateFile(tempfile, win32con.GENERIC_ALL ,win32con.FILE_SHARE_READ,
+    sa, win32con.OPEN_EXISTING, win32file.FILE_FLAG_BACKUP_SEMANTICS , None)
+
+
+""" stream header:
+typedef struct _WIN32_STREAM_ID {
+    DWORD dwStreamId;  DWORD dwStreamAttributes;  LARGE_INTEGER Size;
+    DWORD dwStreamNameSize;  WCHAR cStreamName[ANYSIZE_ARRAY];
+}
+"""
+
+win32_stream_id_format="LLQL"
+win32_stream_id_size=struct.calcsize(win32_stream_id_format)
+
+def parse_stream_header(h,ctxt,data):
+    stream_type, stream_attributes, stream_size, stream_name_size=struct.unpack(win32_stream_id_format,data)
+    print('\nType:',stream_type,stream_types[stream_type], 'Attributes:', stream_attributes, 'Size:', stream_size, 'Name len:',stream_name_size)
+    if stream_name_size>0:
+        ## ??? sdk says this size is in characters, but it appears to be number of bytes ???
+        bytes_read, stream_name_buf, ctxt=win32file.BackupRead(h, stream_name_size, None, False, True, ctxt)
+        stream_name=pywintypes.UnicodeFromRaw(stream_name_buf[:])
+    else:
+        stream_name='Unnamed'
+    print('Name:'+stream_name)
+    return ctxt, stream_type, stream_attributes, stream_size, stream_name_size, stream_name
+
+ctxt=0
+win32_stream_id_buf=None  ## gets rebound to a writable buffer on first call and reused
+while 1:
+    bytes_read, win32_stream_id_buf, ctxt=win32file.BackupRead(h, win32_stream_id_size, win32_stream_id_buf, False, True, ctxt)
+    if bytes_read==0:
+        break
+    ctxt, stream_type, stream_attributes, stream_size, stream_name_size, stream_name=\
+        parse_stream_header(h, ctxt, win32_stream_id_buf[:])
+    if stream_size>0:
+        bytes_moved=win32file.BackupSeek(h, stream_size, ctxt)
+        print('Moved: ',bytes_moved)
+
+win32file.BackupRead(h, win32_stream_id_size, win32_stream_id_buf, True, True, ctxt)
+win32file.CloseHandle(h)
+