author | Sverre Rabbelier <srabbelier@gmail.com> |
Sun, 15 Mar 2009 13:36:14 +0000 | |
changeset 1865 | f00720cddea0 |
parent 323 | ff1a9aa48cfd |
permissions | -rw-r--r-- |
323
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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1 |
""" |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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2 |
Classes representing uploaded files. |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
3 |
""" |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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4 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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5 |
import os |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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6 |
try: |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
7 |
from cStringIO import StringIO |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
8 |
except ImportError: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
9 |
from StringIO import StringIO |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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10 |
|
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
11 |
from django.conf import settings |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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12 |
from django.core.files.base import File |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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13 |
from django.core.files import temp as tempfile |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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14 |
from django.utils.encoding import smart_str |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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15 |
|
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parents:
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16 |
__all__ = ('UploadedFile', 'TemporaryUploadedFile', 'InMemoryUploadedFile', |
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17 |
'SimpleUploadedFile') |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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18 |
|
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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19 |
class UploadedFile(File): |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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20 |
""" |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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21 |
A abstract uploaded file (``TemporaryUploadedFile`` and |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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22 |
``InMemoryUploadedFile`` are the built-in concrete subclasses). |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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23 |
|
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parents:
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24 |
An ``UploadedFile`` object behaves somewhat like a file object and |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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25 |
represents some file data that the user submitted with a form. |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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26 |
""" |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
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parents:
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27 |
DEFAULT_CHUNK_SIZE = 64 * 2**10 |
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28 |
|
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29 |
def __init__(self, name=None, content_type=None, size=None, charset=None): |
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30 |
self.name = name |
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31 |
self.size = size |
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32 |
self.content_type = content_type |
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33 |
self.charset = charset |
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parents:
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34 |
|
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parents:
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35 |
def __repr__(self): |
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36 |
return "<%s: %s (%s)>" % (self.__class__.__name__, smart_str(self.name), self.content_type) |
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37 |
|
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38 |
def _get_name(self): |
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39 |
return self._name |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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40 |
|
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parents:
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41 |
def _set_name(self, name): |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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42 |
# Sanitize the file name so that it can't be dangerous. |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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43 |
if name is not None: |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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44 |
# Just use the basename of the file -- anything else is dangerous. |
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parents:
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45 |
name = os.path.basename(name) |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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46 |
|
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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47 |
# File names longer than 255 characters can cause problems on older OSes. |
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parents:
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48 |
if len(name) > 255: |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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49 |
name, ext = os.path.splitext(name) |
ff1a9aa48cfd
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parents:
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50 |
name = name[:255 - len(ext)] + ext |
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parents:
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51 |
|
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parents:
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52 |
self._name = name |
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parents:
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53 |
|
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parents:
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54 |
name = property(_get_name, _set_name) |
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parents:
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55 |
|
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parents:
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56 |
# Abstract methods; subclasses *must* define read() and probably should |
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parents:
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57 |
# define open/close. |
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parents:
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58 |
def read(self, num_bytes=None): |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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59 |
raise NotImplementedError() |
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parents:
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60 |
|
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parents:
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61 |
def open(self): |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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62 |
pass |
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parents:
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63 |
|
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parents:
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64 |
def close(self): |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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65 |
pass |
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parents:
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|
66 |
|
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
67 |
class TemporaryUploadedFile(UploadedFile): |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
68 |
""" |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
69 |
A file uploaded to a temporary location (i.e. stream-to-disk). |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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70 |
""" |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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71 |
def __init__(self, name, content_type, size, charset): |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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72 |
super(TemporaryUploadedFile, self).__init__(name, content_type, size, charset) |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
73 |
if settings.FILE_UPLOAD_TEMP_DIR: |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
74 |
self._file = tempfile.NamedTemporaryFile(suffix='.upload', dir=settings.FILE_UPLOAD_TEMP_DIR) |
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parents:
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75 |
else: |
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parents:
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|
76 |
self._file = tempfile.NamedTemporaryFile(suffix='.upload') |
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parents:
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77 |
|
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parents:
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78 |
def temporary_file_path(self): |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
79 |
""" |
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parents:
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|
80 |
Returns the full path of this file. |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
81 |
""" |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
82 |
return self._file.name |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
83 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
84 |
# Most methods on this object get proxied to NamedTemporaryFile. |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
85 |
# We can't directly subclass because NamedTemporaryFile is actually a |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
86 |
# factory function |
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parents:
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|
87 |
def read(self, *args): return self._file.read(*args) |
ff1a9aa48cfd
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parents:
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88 |
def seek(self, *args): return self._file.seek(*args) |
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parents:
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|
89 |
def write(self, s): return self._file.write(s) |
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parents:
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|
90 |
def tell(self, *args): return self._file.tell(*args) |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
91 |
def __iter__(self): return iter(self._file) |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
92 |
def readlines(self, size=None): return self._file.readlines(size) |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
93 |
def xreadlines(self): return self._file.xreadlines() |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
94 |
def close(self): |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
95 |
try: |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
96 |
return self._file.close() |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
97 |
except OSError, e: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
98 |
if e.errno == 2: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
99 |
# Means the file was moved or deleted before the tempfile could unlink it. |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
100 |
# Still sets self._file.close_called and calls self._file.file.close() |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff
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|
101 |
# before the exception |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
102 |
return |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
103 |
else: |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
104 |
raise e |
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parents:
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|
105 |
|
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
106 |
class InMemoryUploadedFile(UploadedFile): |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
107 |
""" |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
diff
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|
108 |
A file uploaded into memory (i.e. stream-to-memory). |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
109 |
""" |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
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110 |
def __init__(self, file, field_name, name, content_type, size, charset): |
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111 |
super(InMemoryUploadedFile, self).__init__(name, content_type, size, charset) |
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112 |
self._file = file |
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113 |
self.field_name = field_name |
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114 |
self._file.seek(0) |
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115 |
|
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116 |
def open(self): |
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117 |
self._file.seek(0) |
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118 |
|
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119 |
def chunks(self, chunk_size=None): |
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120 |
self._file.seek(0) |
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121 |
yield self.read() |
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122 |
|
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123 |
def multiple_chunks(self, chunk_size=None): |
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124 |
# Since it's in memory, we'll never have multiple chunks. |
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125 |
return False |
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126 |
|
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127 |
# proxy methods to StringIO |
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128 |
def read(self, *args): return self._file.read(*args) |
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129 |
def seek(self, *args): return self._file.seek(*args) |
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130 |
def tell(self, *args): return self._file.tell(*args) |
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131 |
def close(self): return self._file.close() |
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132 |
|
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133 |
class SimpleUploadedFile(InMemoryUploadedFile): |
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134 |
""" |
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135 |
A simple representation of a file, which just has content, size, and a name. |
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136 |
""" |
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137 |
def __init__(self, name, content, content_type='text/plain'): |
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138 |
self._file = StringIO(content or '') |
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139 |
self.name = name |
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140 |
self.field_name = None |
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141 |
self.size = len(content or '') |
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142 |
self.content_type = content_type |
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143 |
self.charset = None |
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144 |
self._file.seek(0) |
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145 |
|
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146 |
def from_dict(cls, file_dict): |
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147 |
""" |
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148 |
Creates a SimpleUploadedFile object from |
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149 |
a dictionary object with the following keys: |
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150 |
- filename |
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151 |
- content-type |
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152 |
- content |
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153 |
""" |
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154 |
return cls(file_dict['filename'], |
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155 |
file_dict['content'], |
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156 |
file_dict.get('content-type', 'text/plain')) |
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157 |
|
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158 |
from_dict = classmethod(from_dict) |