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Sending html emails with images using Django templates

I have not extensively test this yet. But working for templates with embedded images. If you want to use Django template system use `msg` and optionally `textmsg` as template context (dict) and define `template` and optionally `texttemplate` variables. Otherwise msg and textmsg variables are used as html and text message sources. If you want to use images in html message, define physical paths and ids in tuples. (image paths are relative to MEDIA_ROOT) example: images=(('email_images/logo.gif','img1'),('email_images/footer.gif','img2')) use them in html like this: `<img src="cid:img1"><br><img src="cid:img2">` stripogram and feedparser modules are used for extract plain text from html message source. If you are going to define text partition explicitly, than you can comment out line 10,11 and 48.

  • template
  • email
  • mail
  • html
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Workaround Firefox bug 553888

Firefox transparently follows redirects when AJAX calls return 3xx code. And it drops additional headers, X-Requested-With among them. Server treats redirected HTTP requested as non-AJAX. JS libraries has nothing to do here. At 16.03.11 bug https://bugzilla.mozilla.org/show_bug.cgi?id=553888 has status "NEW" being reported at 21.03.10. Workaround is following: - in process_response(): if request.is_ajax() and response has status_code 3xx then put response["Location"] to session, otherwise unset session stored value (if it is there). - in process_request(): if not request.is_ajax() and request.path equals to stored session value then monkeypatch request.is_ajax() return True (before any views come into play). This results in smooth transparent redirects in Firefox, all treated as AJAX calls.

  • ajax
  • redirect
  • headers
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Login + logout script from a nub

A simple way to log in and log out users. It's most likely nowhere near as good as the built-in login forms. This was more of a learning experience for me. Nevertheless, the script works. Usage: def some_view(request): check_login(request) Some explanation can be found here: http://bit.ly/ete0

  • forms
  • login
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Decorate every view in a url tree

Add login_required (or any other combination of decorators) to any view references by the urls created by patterns(...). My personal little itch as an example... urlpatterns += required( login_required, patterns('', (r'^api/', include(api.urls)), ) )

  • urls
  • login_required
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Choice Submit Widget

This widget renders choices as submit buttons. This may be a better choice than radio buttons + submit sometimes

  • choices
  • widget
  • submit
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staff_or_404 Decorator

Sometimes I don't want to reveal a staff-only view so I created this decorator, using ``django.contrib.admin.views.decorators.staff_member_required`` as my boilerplate. Non staff members are kicked to the 404 curb. Suggestion: Create a file, ``decorators.py`` in your project (or single app) and import like so: ``from myproject.app_name.decorators import staff_or_404``.

  • user
  • auth
  • decorators
  • staff
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Filter to resize a ImageField on demand

A filter to resize a ImageField on demand, a use case could be: ` <img src="object.get_image_url" alt="original image"> <img src="object.image|thumbnail" alt="image resized to default 200x200 format"> <img src="object.image|thumbnail:"200x300" alt="image resized to 200x300"> ` The filter is applied to a image field (not the image url get from *get_image_url* method of the model), supposing the image filename is "image.jpg", it checks if there is a file called "image_200x200.jpg" or "image_200x300.jpg" on the second case, if the file isn't there, it resizes the original image, finally it returns the proper url to the resized image. There is a **TODO**: the filter isn't checking if the original filename is newer than the cached resized image, it should check it and resize the image again in this case.

  • filter
  • models
  • thumbnail
  • resize
  • imagefield
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Support for permissions for anonymous users in django ModelBackend

Model backend that enables permissions for AnonymusUsers. I wanted it to be as simple as possible so anonymous users just forward their permission checks to some fixed user model. This instance can be edited via django admin, assigned to groups, etc. To control which user will represent anonymous user you use ANONYMOUS_USER_NAME setting in settings file. To provide some sensible level of security i enforce following for user that represents anonymous user: * This user must have password equal to UNUSABLE_PASSWORD * This user may not log in * You cant cange password for this user via admin. You need to enable this backend by setting AUTHENTICATION_BACKENDS. Please note that you should not place this backend alongside django ModelBackend. This backend inherits from it.

  • user
  • auth
  • permissions
  • anonymous
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Author: jb
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