File size: 2,533 Bytes
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## `grappelli/views/switch.py` — `function:switch_user` (lines 23-75)
```python
def switch_user(request, object_id):
# current/session user
current_user = request.user
session_user = request.session.get("original_user", {"id": current_user.id, "username": current_user.get_username()})
# check redirect
redirect_url = request.GET.get("redirect", None)
if redirect_url is None or not \
url_has_allowed_host_and_scheme(
url=redirect_url,
allowed_hosts={request.get_host()},
require_https=request.is_secure(),
):
raise Http404()
# check original_user
try:
original_user = User.objects.get(pk=session_user["id"], is_staff=True)
if not SWITCH_USER_ORIGINAL(original_user):
messages.add_message(request, messages.ERROR, _("Permission denied."))
return redirect(redirect_url)
except ObjectDoesNotExist:
msg = _('%(name)s object with primary key %(key)r does not exist.') % {'name': "User", 'key': escape(session_user["id"])}
messages.add_message(request, messages.ERROR, msg)
return redirect(redirect_url)
# check new user
try:
target_user = User.objects.get(pk=object_id, is_staff=True)
if target_user != original_user and not SWITCH_USER_TARGET(original_user, target_user):
messages.add_message(request, messages.ERROR, _("Permission denied."))
return redirect(redirect_url)
except ObjectDoesNotExist:
msg = _('%(name)s object with primary key %(key)r does not exist.') % {'name': "User", 'key': escape(object_id)}
messages.add_message(request, messages.ERROR, msg)
return redirect(redirect_url)
# find backend
if not hasattr(target_user, 'backend'):
for backend in settings.AUTHENTICATION_BACKENDS:
if target_user == load_backend(backend).get_user(target_user.pk):
target_user.backend = backend
break
# target user login, set original as session
if hasattr(target_user, 'backend'):
login(request, target_user)
if original_user.id != target_user.id:
request.session["original_user"] = {"id": original_user.id, "username": original_user.get_username()}
return redirect(redirect_url)
```
## `grappelli/views/switch.py` — `module:<module>@11` (lines 11-11)
```python
from django.utils.http import url_has_allowed_host_and_scheme
```
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