Fixed #7658 -- Added some Windows-specific tempfile handling. The standard

stuff doesn't work with the way Django's file uploading code wants to operate.
Patch from Mike Axiak.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8096 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/files/temp.py

@@ -0,0 +1,58 @@
+"""
+The temp module provides a NamedTemporaryFile that can be re-opened on any
+platform. Most platforms use the standard Python tempfile.TemporaryFile class,
+but MS Windows users are given a custom class.
+
+This is needed because in Windows NT, the default implementation of
+NamedTemporaryFile uses the O_TEMPORARY flag, and thus cannot be reopened [1].
+
+1: http://mail.python.org/pipermail/python-list/2005-December/359474.html
+"""
+
+import os
+import tempfile
+
+__all__ = ('NamedTemporaryFile', 'gettempdir',)
+
+if os.name == 'nt':
+    class TemporaryFile(object):
+        """
+        Temporary file object constructor that works in Windows and supports
+        reopening of the temporary file in windows.
+        """
+        def __init__(self, mode='w+b', bufsize=-1, suffix='', prefix='',
+                dir=None):
+            fd, name = tempfile.mkstemp(suffix=suffix, prefix=prefix,
+                                          dir=dir)
+            self.name = name
+            self._file = os.fdopen(fd, mode, bufsize)
+
+        def __del__(self):
+            try:
+                self._file.close()
+            except (OSError, IOError):
+                pass
+            try:
+                os.unlink(self.name)
+            except (OSError):
+                pass
+
+            try:
+                super(TemporaryFile, self).__del__()
+            except AttributeError:
+                pass
+
+
+        def read(self, *args):          return self._file.read(*args)
+        def seek(self, offset):         return self._file.seek(offset)
+        def write(self, s):             return self._file.write(s)
+        def close(self):                return self._file.close()
+        def __iter__(self):             return iter(self._file)
+        def readlines(self, size=None): return self._file.readlines(size)
+        def xreadlines(self):           return self._file.xreadlines()
+
+    NamedTemporaryFile = TemporaryFile
+else:
+    NamedTemporaryFile = tempfile.NamedTemporaryFile
+
+gettempdir = tempfile.gettempdir

django/core/files/uploadedfile.py

@@ -3,7 +3,6 @@ Classes representing uploaded files.
 """
 
 import os
-import tempfile
 import warnings
 try:
     from cStringIO import StringIO
@@ -12,6 +11,8 @@ except ImportError:
 
 from django.conf import settings
 
+from django.core.files import temp as tempfile
+
 __all__ = ('UploadedFile', 'TemporaryUploadedFile', 'InMemoryUploadedFile', 'SimpleUploadedFile')
 
 # Because we fooled around with it a bunch, UploadedFile has a bunch