我有一个Django web应用程序，它代表用户访问和操作多个服务器文件系统（例如/fs01、/fs02等）。我想向用户展示这些文件系统上的图像缩略图，并认为sorl缩略图是实现这一点的方法。
似乎这些图像必须在MEDIA\u根目录下才能创建缩略图。我的MEDIA_ROOT是/Users/me/Dev/MyProject/myproj/media，所以这是有效的：
path = "/Users/me/Dev/MyProject/myproj/media/pipe-img/magritte-pipe-large.jpg"
try:
im = get_thumbnail(path, '100x100', crop='center', quality=99)
except Exception, e:
exc_type, exc_obj, exc_tb = sys.exc_info()
print "Failed getting thumbnail: (%s) %s" % (exc_type, e)
print "im.url = %s" % im.url
它创建缩略图并打印im.url，正如我所料。但当我将
path更改为：path = "/fs02/dir/ep340102/foo/2048x1024/magritte-pipe-large.jpg"
失败的原因是：
Failed getting thumbnail: (<class 'django.core.exceptions.SuspiciousOperation'>)
Attempted access to '/fs02/dir/ep340102/foo/2048x1024/magritte-pipe-large.jpg' denied.
有办法解决这个问题吗？我可以像在这些其他文件系统（如/fs01、/fs02、/fs03等）下那样使用sorl缩略图来创建缩略图吗？有更好的方法吗？
更新。下面是完整的堆栈跟踪：
Environment:
Request Method: GET
Request URL: http://localhost:8000/pipe/file_selection/
Django Version: 1.4.1
Python Version: 2.7.2
Installed Applications:
('django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.admin',
'django.contrib.admindocs',
'django.contrib.humanize',
'django.contrib.messages',
'pipeproj.pipe',
'south',
'guardian',
'sorl.thumbnail')
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware')
Traceback:
File "/Library/Python/2.7/site-packages/django/core/handlers/base.py" in get_response
111. response = callback(request, *callback_args, **callback_kwargs)
File "/Library/Python/2.7/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
20. return view_func(request, *args, **kwargs)
File "/Users/dylan/Dev/Pipe/pipeproj/../pipeproj/pipe/views/data.py" in file_selection
184. im = get_thumbnail(path, '100x100', crop='center', quality=99)
File "/Library/Python/2.7/site-packages/sorl_thumbnail-11.12-py2.7.egg/sorl/thumbnail/shortcuts.py" in get_thumbnail
8. return default.backend.get_thumbnail(file_, geometry_string, **options)
File "/Library/Python/2.7/site-packages/sorl_thumbnail-11.12-py2.7.egg/sorl/thumbnail/base.py" in get_thumbnail
56. source_image = default.engine.get_image(source)
File "/Library/Python/2.7/site-packages/sorl_thumbnail-11.12-py2.7.egg/sorl/thumbnail/engines/pil_engine.py" in get_image
12. buf = StringIO(source.read())
File "/Library/Python/2.7/site-packages/sorl_thumbnail-11.12-py2.7.egg/sorl/thumbnail/images.py" in read
121. return self.storage.open(self.name).read()
File "/Library/Python/2.7/site-packages/django/core/files/storage.py" in open
33. return self._open(name, mode)
File "/Library/Python/2.7/site-packages/django/core/files/storage.py" in _open
156. return File(open(self.path(name), mode))
File "/Library/Python/2.7/site-packages/django/core/files/storage.py" in path
246. raise SuspiciousOperation("Attempted access to '%s' denied." % name)
Exception Type: SuspiciousOperation at /pipe/file_selection/
Exception Value: Attempted access to '/fs02/dir/ep340102/foo/2048x1024/bettina.jpg' denied.
最佳答案
可疑操作来自FileSystemStorage.path（）此处：
def path(self, name):
try:
path = safe_join(self.location, name)
except ValueError:
raise SuspiciousFileOperation("Attempted access to '%s' denied." % name)
return os.path.normpath(path)
它源于safe_join（），它具有以下测试：
if (not normcase(final_path).startswith(normcase(base_path + sep)) and
...
这意味着计算的文件名必须存在于配置的缩略图存储中。默认情况下，settings.THUMBNAIL_STORAGE是settings.default_FILE_STORAGE，它是在settings.MEDIA_根目录中存储文件的文件系统存储。
通过定义存储类，您应该能够为缩略图使用不同的存储路径：
from django.core.files.storage import FileSystemStorage
class ThumbnailStorage(FileSystemStorage):
def __init__(self, **kwargs):
super(ThumbnailStorage, self).__init__(
location='/fs02', base_url='/fs02')
然后在settings.py中
THUMBNAIL_STORAGE = 'myproj.storage.ThumbnailStorage'
您还需要确保该URL上有/fs02服务：
if settings.DEBUG:
patterns += patterns('',
url(r'^fs02/(?P<path>.*)$', 'django.views.static.serve',
{'document_root': '/fs02'}))
请注意，您的缩略图将创建为/fs02/cache/。。。根据默认缩略图前缀
关于python - SuspiciousOperation使用单一缩略图，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/14820957/