from django.template import loader from django.http import Http404, HttpResponse, HttpResponseRedirect, HttpResponseNotModified from django.template import Template, Context, TemplateDoesNotExist import mimetypes import os import posixpath import re import rfc822 import stat import urllib def serve(request, path, document_root='', app_media_folder='', show_indexes=False): """ Serve static files below a given point in the directory structure. To use, put a URL pattern such as:: (r'^(?P.*)$', 'django.views.static.serve', {'document_root' : '/path/to/my/files/'}) in your URLconf. You may also set ``show_indexes`` to ``True`` if you'd like to serve a basic index of the directory. This index view will use the template hardcoded below, but if you'd like to override it, you can create a template called ``static/directory_index``. """ # Clean up given path to only allow serving files below document_root. path = posixpath.normpath(urllib.unquote(path)) newpath = '' for part in path.split('/'): if not part: # strip empty path components continue drive, part = os.path.splitdrive(part) head, part = os.path.split(part) if part in (os.curdir, os.pardir): # strip '.' amd '..' in path continue newpath = os.path.join(newpath, part).replace('\\', '/') if newpath and path != newpath: return HttpResponseRedirect(newpath) fullpath = get_fullpath(newpath, document_root, app_media_folder) # fullpath = os.path.join(document_root, newpath) if os.path.isdir(fullpath): if show_indexes: return directory_index(newpath, fullpath) raise Http404, "Directory indexes are not allowed here." if not os.path.exists(fullpath): raise Http404, '"%s" does not exist' % fullpath # Respect the If-Modified-Since header. statobj = os.stat(fullpath) if not was_modified_since(request.META.get('HTTP_IF_MODIFIED_SINCE'), statobj[stat.ST_MTIME], statobj[stat.ST_SIZE]): return HttpResponseNotModified() mimetype = mimetypes.guess_type(fullpath)[0] contents = open(fullpath, 'rb').read() response = HttpResponse(contents, mimetype=mimetype) response["Last-Modified"] = rfc822.formatdate(statobj[stat.ST_MTIME]) return response DEFAULT_DIRECTORY_INDEX_TEMPLATE = """ Index of {{ directory|escape }}

Index of {{ directory|escape }}

{{ f|escape }}

""" def directory_index(path, fullpath): try: t = loader.get_template('static/directory_index') except TemplateDoesNotExist: t = Template(DEFAULT_DIRECTORY_INDEX_TEMPLATE, name='Default directory index template') files = [] for f in os.listdir(fullpath): if not f.startswith('.'): if os.path.isdir(os.path.join(fullpath, f)): f += '/' files.append(f) c = Context({ 'directory' : path + '/', 'file_list' : files, }) return HttpResponse(t.render(c)) def was_modified_since(header=None, mtime=0, size=0): """ Was something modified since the user last downloaded it? header This is the value of the If-Modified-Since header. If this is None, I'll just return True. mtime This is the modification time of the item we're talking about. size This is the size of the item we're talking about. """ try: if header is None: raise ValueError matches = re.match(r"^([^;]+)(; length=([0-9]+))?$", header, re.IGNORECASE) header_mtime = rfc822.mktime_tz(rfc822.parsedate_tz( matches.group(1))) header_len = matches.group(3) if header_len and int(header_len) != size: raise ValueError if mtime > header_mtime: raise ValueError except (AttributeError, ValueError): return True return False def get_fullpath(path, document_root, app_media_folder): from django.conf import settings if document_root: fullpath = os.path.join(document_root, path) if os.path.exists(fullpath): return fullpath for app in settings.INSTALLED_APPS: try: model = __import__(app, {}, {}, ['']) basepath = os.path.dirname(model.__file__) fullpath = os.path.normcase(os.path.join(basepath, app_media_folder, path)) if os.path.exists(fullpath): return fullpath except: print 'Cannot import model %s' % app else: return ''