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Project description

django-switchuser

django-switchuser makes it easy for an administrator to switch to temporarily switch to another account by visiting /su.

Assumptions

Because django-switchuser was a quick project, it does make one assumption:

  • If a user is not allowed to su, then they will get an HTTP 404 if they try to visit /su/ or do anything su-related.
  • Any superuser is allowed to switch to any other user. If this assumption does not hold: you’ll need to submit a pull request (hint: take a look at django_switchuser/state.py)… Sorry :(

Installation

  1. pip install django-switchuser

  2. Add a few things to settings.py (note: the SuStateMiddleware must appear after the AuthenticationMiddleware):

    INSTALLED_APPS = (
        ...
        "django_switchuser",
        ...
    )
    
    MIDDLEWARE_CLASSES = (
        ...
        "django.contrib.sessions.middleware.SessionMiddleware",
        "django.contrib.auth.middleware.AuthenticationMiddleware",
        "django_switchuser.middleware.SuStateMiddleware",
        ...
    )
    
    TEMPLATE_CONTEXT_PROCESSORS = (
        ...
        "django_switchuser.context_processors.su_state",
        ...
    )
    
  3. Add an entry to urls.py (note: you can use whatever URL you’d like; su/ is simply convenient):

    urlpatterns += patterns("",
        ...
        url(r"^su/", include("django_switchuser.urls")),
        ...
    )
    
  4. Start the server and check that everything is working by visiting http://localhost:8000/su/ Note: an HTTP 404 will be returned if the currently logged in user isn’t allowed to su (by default, only administrators are allowed to su).

  5. (Optional) Add an entry to your base.html template which will show a convenient logout button:

    <html>
        <head>...</head>
        <body>
            ...
            {% include "su/statusbar.html" %}
        </body>
    </html>
    

Doing Your Own Thing

Doing your own thing is easy. The SuStateMiddleware and su_state context processors add a su_state attribute to the request and a su_state variable to the template rendering context. su_state is an instance of django_switchuser.state.SuState, and has the following attributes:

SuState.is_active():
Returns True if the current user has been switched.
SuState.auth_user:
The original user associated with the request. For example, if the user admin has switched to jane, then su_state.auth_user will be admin.
SuState.active_user:
The user which has been switched to, or None if no user has been switched. For example, if the user admin has switched to jane, then su_state.active_user will be admin.
SuState.can_su():
Returns True if the current user is allowed to switch.
SuState.available_users():
Returns a QuerySet of User of the users which the current user is allowed to switch to.
SuState.set_su_user_id(su_user_id):
Switches to the user with id su_user_id.
SuState.clear_su():
Reverts back to the original user.

For example, if you don’t like the default switch user bar, you could add your own to your base.html:

{% if su_state.is_active %}
    <a href="{% url su-logout %}">deactive {{ su.active_user.username }}</a>
{% elif su_state.can_su %}
    <a href="{% url su-login %}">switch user</a>
{% endif %}

Project details


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