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staticview for app

Author:
limodou
Posted:
June 14, 2007
Language:
Python
Version:
.96
Score:
2 (after 2 ratings)

This module is comes from the original staticview.py from django. But when you using it, it can looks for static files in your app's subdirectory. So that you can put static files which concerned with your app in a subdirectory of the app. I should say it method only suit for developing, so if you want to deploy your application to apache, you should copy static folder to the real media folder. And if you keep the same structure of the directory, then it'll be very easy. And you can write a little script to automatically do that. But for now, I didn't have written one yet :P

How to use it in urls.py

Here's an example:

(r'^site_media/(.*)$', 'utils.staticview.serve', {'document_root': settings.SITE_MEDIA, 'app_media_folder':'media'}),

It seems just like the original one in django. But there is a new parameter "app_media_folder", it's used for subdirectory name of app. So your django project folder structure maybe seem like this:

/yourproject
    /apps
        /appone
            /media
                /css
                /img
                /js
    /media
        /css
        /img
        /js

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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<path>.*)$', '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 = """
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
  <head>
    <meta http-equiv="Content-type" content="text/html; charset=utf-8" />
    <meta http-equiv="Content-Language" content="en-us" />
    <meta name="robots" content="NONE,NOARCHIVE" />
    <title>Index of {{ directory|escape }}</title>
  </head>
  <body>
    <h1>Index of {{ directory|escape }}</h1>
    <ul>
      {% for f in file_list %}
      <li><a href="{{ f|urlencode }}">{{ f|escape }}</a></li>
      {% endfor %}
    </ul>
  </body>
</html>
"""

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 ''

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Comments

gabamnml (on June 5, 2012):

yeah! thx is work perfect

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