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Mask sensitive data from logger

This will help to secure the sensitive secrets, token, api keys, etc from logger. As we know there is security issue when we include the sensitive information to the logger in case logger got leaked/hacked. Before: ``` INFO ('192.168.1.1', 33321) - "WebSocket /ssh?token=abcdefg&width=20&heigh20" ``` After: ``` INFO ('192.168.1.1', 33321) - "WebSocket /ssh?token=********&width=20&heigh20" ```

  • django
  • security
  • logging
  • logger
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Smart {% if %} template tag

Save this as `smart_if.py` in the `templatetags` folder of one of your apps. Then a simple `{% load smart_if %}` replaces the boring built-in Django `{% if %}` template with the new smart one. *7 May 2009*: Was asked about whether it handles combination of and/or. It does, added a test to show it. I actually like how Django doesn't let you do this, but I'm not going to confuscate my code for a restriction like this. *15 June 2009*: Fixed up a bug with boolean precedence (`x or x == 0` was being parsed as `(x or x) == 0` instead of `x or (x == 0)`). Add some extra test cases, including some for invalid cases.

  • if
  • smart-if
  • if-in
  • greater-than
  • less-than
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Add Toggle Switch Widget to Django Forms

Implementation Suggestions use: ``` ....... widgets = { ...... }), 'solicitada_mpu': ToggleSwitchWidget(size='sm', active_color='#9333ea', inactive_color='#ccc', active_text='YES', inactive_text='NO' ), ............... ```

  • ToggleSwitchWidget
  • toggle-switches
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Template Query Debug

I often find something like this lurking at the end of my base templates - it'll show you which queries were run while generating the current page, but they'll start out hidden so as not to be a pain. Of course, before this works, you'll need to satisfy all the criteria for getting debug information in your template context: 1. Have `'django.core.context_processors.debug'` in your `TEMPLATE_CONTEXT_PROCESSORS` setting (it was there in the default settings, last time I checked). 2. Have your current IP in your `INTERNAL_IPS` setting. 3. Use [RequestContext](http://www.djangoproject.com/documentation/templates_python/#subclassing-context-requestcontext) when rendering the current template (if you're using a generic view, you're already using `RequestContext`).

  • template
  • debug
  • queries
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get_object_or_none

This utility is useful when you want to safely retrieve a single object from the database without having to wrap get() in a try/except block every time. It also supports query optimization via select_related and prefetch_related, making it ideal for performance-conscious applications.

  • orm
  • queryset
  • utils
  • select_related
  • get_or_none
  • prefetch_related
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SMTP sink server

In development, we need a SMTP Server to see the results of send mail via SMTP protocol in Python application. Instead of configure a mail daemon, we could use this little script to receive the SMTP request, and save each session into an EML file. *.eml could be viewed with your favorite email client, you need not send them out. [EML description](http://filext.com/detaillist.php?extdetail=EML) **Update**: Fix bug for overwrite files when received multi-message in one SMTP session.

  • email
  • debug
  • smtp
  • server
  • eml
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Unique Slugify

Automatically create a unique slug for a model. Note that you *don't* need to do `obj.slug = ...` since this method updates the instance's slug field directly. All you usually need is: `unique_slugify(obj, obj.title)` A frequent usage pattern is to override the `save` method of a model and call `unique_slugify` before the `super(...).save()` call.

  • slug
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View all log entries in the admin

By default, you can only see the action log ("History") for particular model instances and a list of your own actions on the admin's index. This adds a fully-fledged admin view for the LogEntry model, where you can filter actions by user, content type, action type, browse by change date, and also search in the change message. Add the code to any of your apps' admin.py. The entries will be visible only to superusers and won't be editable.

  • admin
  • logentry
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Binding signals to abstract models

Intro ----- I found a question on SO for which Justin Lilly's answer was correct but not as thorough as I'd like, so I ended up working on a simple snippet that shows how to bind signals at runtime, which is nifty when you want to bind signals to an abstract class. Bonus: simple cache invalidation! Question -------- [How do I use Django signals with an abstract model?](http://stackoverflow.com/questions/2692551/how-do-i-use-django-signals-with-an-abstract-model) I have an abstract model that keeps an on-disk cache. When I delete the model, I need it to delete the cache. I want this to happen for every derived model as well. If I connect the signal specifying the abstract model, this does not propagate to the derived models: pre_delete.connect(clear_cache, sender=MyAbstractModel, weak=False) If I try to connect the signal in an init, where I can get the derived class name, it works, but I'm afraid it will attempt to clear the cache as many times as I've initialized a derived model, not just once. Where should I connect the signal? Answer ------ I've created a custom manager that binds a post_save signal to every child of a class, be it abstract or not. This is a one-off, poorly tested code, so beware! It works so far, though. In this example, we allow an abstract model to define CachedModelManager as a manager, which then extends basic caching functionality to the model and its children. It allows you to define a list of volatile keys that should be deleted upon every save (hence the post_save signal) and adds a couple of helper functions to generate cache keys, as well as retrieving, setting and deleting keys. This of course assumes you have a cache backend setup and working properly.

  • managers
  • models
  • cache
  • model
  • manager
  • signals
  • abstract
  • signal
  • contribute_to_class
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Template tag - list punctuation for a list of items

If you have multiple items in a list and want them to be displayed as human readable list of items, this will add the proper punctuation to generate the text. You'll need to provide a conjugation to the end of the list like "or" or "and"; it defaults to "or". Intended use: `{% for item in items %}{{item}}{% list_punctuation forloop "and" %}{% endfor %}` * If items was `['a']`; the template would return `a`. * If items was `['a', 'b']`; the template would return `a and b`. * If items was `['a', 'b', 'c']`; the template would return `a, b, and c`.

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Middleware for fixing Microsoft Office (Word, Excel, Powerpoint) hyperlinks to views requiring authentication

Hyperlinks to views requiring authentication in Microsoft Office (Word, Excel, Powerpoint) can fail based on how Office handles rendering. This middleware sends a refresh return to the client, which will allow the page to be opened as normal, instead of the "Unable to open ... Cannot download the information you requested." This is a port from the ruby middleware project [fix microsoft links](https://github.com/spilliton/fix_microsoft_links). To enable, add to your [middleware stack](https://docs.djangoproject.com/en/dev/topics/http/middleware/) in the django project settings.

  • middleware
  • office
  • word
  • excel
  • powerpoint
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Generate iCal VTIMEZONE block with DAYLIGHT and STANDARD components, based on pytz zoneinfo data

In the last few days I spent a lot of time trying to find a library or repository of some kind that could help me generate the required DAYLIGHT and STANDARD components of ical VTIMEZONE blocks. Since I couldn't find anything, I cobbled together this snippet to poke around in pytz timezone information and output the bare minimum I needed to make my ICS files compliant and useful (DST transitions for this year and the next). I promise it's (superficially) tested against "real" ICS files, but that's all. UPDATE: Thanks to @ariannedee for a much improved version (see comment for details)

  • pytz
  • timezones
  • ical
  • icalendar
  • ics
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Unique field inline formset

This method will return an inline formset class that validates values across the given field are unique among all forms. For instance: ApprovedUserFormSet = inlineformset_factory(Request, ApprovedUser, formset=unique_field_formset('email'), form=ApprovedUserForm) Will make sure all ApprovedUser objects created for the Request have unique "email" fields.

  • field
  • unique
  • formset
  • inlineformset
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