mirror of
https://github.com/retspen/webvirtcloud
synced 2026-11-08 19:26:48 +00:00
No view used sensitive_post_parameters, so once ADMINS is set the error mail of a failing POST would carry the password or key in plain text. The user create, edit and password views, the password change, the compute forms, the host secrets, the VM's root password and its console settings now mark their POST data sensitive.
352 lines
13 KiB
Python
352 lines
13 KiB
Python
from datetime import timedelta
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from accounts.models import Instance, UserAttributes, UserInstance
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from appsettings.settings import app_settings
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from django.conf import settings
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from django.contrib import messages
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from django.contrib.auth import update_session_auth_hash
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from django.contrib.auth.models import Group, Permission, User
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from django.core.paginator import Paginator
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from django.http import HttpResponse
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from django.db import transaction
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from django.db.models import Count, Exists, OuterRef, Q
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from django.shortcuts import get_object_or_404, redirect, render
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from django.utils import timezone
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from django.utils.http import url_has_allowed_host_and_scheme, urlencode
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from django.utils.translation import gettext_lazy as _
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from django.views.decorators.http import require_POST
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from django.views.decorators.debug import sensitive_post_parameters
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from instances.models import InstanceTombstone
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from instances.report import workbook
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from logs.audit import audit, changed_fields, snapshot
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from logs.models import Logs
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from . import forms
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from .decorators import superuser_only
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def group_snapshot(group):
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"""snapshot() of a group with its members, which are a reverse relation snapshot() does not see."""
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return snapshot(group) | {"users": frozenset(group.user_set.values_list("pk", flat=True))}
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@superuser_only
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def group_list(request):
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groups = Group.objects.annotate(members=Count("user", distinct=True), perms=Count("permissions", distinct=True)).order_by("name")
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return render(
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request,
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"admin/group_list.html",
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{
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"groups": groups,
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},
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)
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@superuser_only
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def group_create(request):
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form = forms.GroupForm(request.POST or None)
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if form.is_valid():
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with audit(request, None, f"Group {form.cleaned_data['name']}", "add"):
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form.save()
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return redirect("admin:group_list")
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return render(
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request,
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"admin/group_form.html",
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{
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"form": form,
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"title": _("Create Group"),
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},
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)
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@superuser_only
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def group_update(request, pk):
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group = get_object_or_404(Group, pk=pk)
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subject, before = f"Group {group.name}", group_snapshot(group)
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form = forms.GroupForm(request.POST or None, instance=group)
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if form.is_valid():
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with audit(request, None, subject, "change") as entry:
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form.save()
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fields = changed_fields(before, group_snapshot(group))
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entry.action = "change " + ", ".join(fields)
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entry.skip = not fields
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return redirect("admin:group_list")
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return render(
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request,
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"admin/group_form.html",
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{
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"form": form,
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"group": group,
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"title": _("Update Group"),
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},
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)
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@superuser_only
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def group_delete(request, pk):
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group = get_object_or_404(Group, pk=pk)
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if request.method == "POST":
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with audit(request, None, f"Group {group.name}", "delete"):
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group.delete()
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return redirect("admin:group_list")
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return render(
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request,
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"common/confirm_delete.html",
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{"object": group, "consequence": _("Its members stay but lose the permissions it gave them.")},
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)
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# an administrator who blocks, deletes or demotes their own account is out of
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# these pages at once, and may have been the last one
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OWN_ACCOUNT = _("You cannot block, delete or demote your own account")
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@superuser_only
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def user_list(request):
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# API tokens that still work: an expired one is deleted only at the user's next create
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live = Q(auth_token_set__expiry__isnull=True) | Q(auth_token_set__expiry__gt=timezone.now())
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# the clone permission, given to the user or to a group of the user: one
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# query for the list, not a has_perm (two queries) a user
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clone = Permission.objects.filter(content_type__app_label="instances", codename="clone_instances")
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users = User.objects.annotate(
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api_tokens=Count("auth_token_set", filter=live),
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can_clone=Exists(clone.filter(Q(user=OuterRef("pk")) | Q(group__user=OuterRef("pk")))),
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).prefetch_related("groups")
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return render(
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request,
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"admin/user_list.html",
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{
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"users": users,
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"title": _("Users"),
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},
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)
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@sensitive_post_parameters()
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@superuser_only
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def user_create(request):
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user_form = forms.UserCreateForm(request.POST or None)
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attributes_form = forms.UserAttributesForm(request.POST or None)
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if user_form.is_valid() and attributes_form.is_valid():
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with audit(request, None, f"User {user_form.cleaned_data['username']}", "add"), transaction.atomic():
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user = user_form.save()
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attributes = attributes_form.save(commit=False)
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attributes.user = user
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attributes.save()
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UserInstance.objects.bulk_create(UserInstance(user=user, instance=instance)
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for instance in user_form.default_instances)
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return redirect("admin:user_list")
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return render(
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request,
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"admin/user_form.html",
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{
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"user_form": user_form,
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"attributes_form": attributes_form,
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"title": _("Create User"),
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},
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)
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@sensitive_post_parameters()
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@superuser_only
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def user_update(request, pk):
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user = get_object_or_404(User, pk=pk)
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attributes, attributes_created = UserAttributes.objects.get_or_create(user=user)
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subject = f"User {user.username}"
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before, before_attributes = snapshot(user), snapshot(attributes)
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user_form = forms.UserForm(request.POST or None, instance=user)
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attributes_form = forms.UserAttributesForm(
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request.POST or None, instance=attributes
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)
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valid = user_form.is_valid() and attributes_form.is_valid()
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if valid and user == request.user and not (user_form.cleaned_data["is_active"] and user_form.cleaned_data["is_superuser"]):
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user_form.add_error(None, OWN_ACCOUNT)
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valid = False
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if valid:
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with audit(request, None, subject, "change") as entry:
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user_form.save()
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attributes_form.save()
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fields = set(changed_fields(before, snapshot(user))) | set(changed_fields(before_attributes, snapshot(attributes)))
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fields = sorted(fields - {"password", "last_login"})
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entry.action = "change " + ", ".join(fields)
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entry.skip = not fields
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next_url = request.GET.get("next")
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if next_url and url_has_allowed_host_and_scheme(
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url=next_url, allowed_hosts={request.get_host()}, require_https=request.is_secure()
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):
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return redirect(next_url)
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return redirect("admin:user_list")
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return render(
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request,
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"admin/user_form.html",
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{
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"user_form": user_form,
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"attributes_form": attributes_form,
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"edited_user": user,
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"title": _("Update User"),
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},
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)
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@sensitive_post_parameters()
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@superuser_only
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def user_update_password(request, pk):
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user = get_object_or_404(User, pk=pk)
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if request.method == "POST":
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form = forms.AdminPasswordForm(user, request.POST)
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valid = form.is_valid()
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if valid and user == request.user and not form.cleaned_data["set_usable_password"]:
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form.add_error(None, OWN_ACCOUNT)
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valid = False
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if valid:
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with audit(request, None, f"User {user.username}", "set password"), transaction.atomic():
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user = form.save()
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UserAttributes.objects.update_or_create(
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user=user, defaults={"must_change_password": form.cleaned_data["must_change_password"]})
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update_session_auth_hash(request, user) # Important!
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messages.success(
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request, _("Password changed for %(user)s") % {"user": user.username}
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)
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return redirect("admin:user_list")
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else:
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form = forms.AdminPasswordForm(user)
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return render(request, "admin/user_password_form.html", {"form": form, "edited_user": user})
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@superuser_only
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def user_delete(request, pk):
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user = get_object_or_404(User, pk=pk)
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if user == request.user:
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messages.error(request, OWN_ACCOUNT)
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return redirect("admin:user_list")
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if request.method == "POST":
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with audit(request, None, f"User {user.username}", "delete"):
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user.delete()
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return redirect("admin:user_list")
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return render(
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request,
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"common/confirm_delete.html",
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{"object": user,
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"consequence": _("Their access to VMs, SSH keys and settings go; the VMs themselves stay.")},
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)
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@require_POST
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@superuser_only
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def user_block(request, pk):
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user: User = get_object_or_404(User, pk=pk)
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if user == request.user:
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messages.error(request, OWN_ACCOUNT)
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return redirect("admin:user_list")
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with audit(request, None, f"User {user.username}", "block") as entry:
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entry.skip = not user.is_active # already blocked
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user.is_active = False
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user.save()
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return redirect("admin:user_list")
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@require_POST
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@superuser_only
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def user_unblock(request, pk):
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user: User = get_object_or_404(User, pk=pk)
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with audit(request, None, f"User {user.username}", "unblock") as entry:
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entry.skip = user.is_active # not blocked
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user.is_active = True
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user.save()
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return redirect("admin:user_list")
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# rows in one Logs download: the workbook is built in memory
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EXPORT_ROWS = 100000
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def _logs(request):
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"""The Logs rows the search and the failed-only box choose, newest first,
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and the query that chooses them again."""
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rows = Logs.objects.order_by("-date", "-id")
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text = request.GET.get("q", "").strip()
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failed = bool(request.GET.get("failed"))
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if text:
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rows = rows.filter(Q(user__icontains=text) | Q(host__icontains=text) | Q(instance__icontains=text)
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| Q(instance_uuid__icontains=text) | Q(message__icontains=text) | Q(ip__icontains=text))
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if failed:
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rows = rows.filter(success=False)
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query = urlencode([(key, value) for key, value in (("q", text), ("failed", "1" if failed else "")) if value])
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return rows, text, failed, query
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def _result(success):
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return _("Unknown") if success is None else _("Done") if success else _("Failed")
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@superuser_only
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def logs(request):
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rows, text, failed, query = _logs(request)
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logs = Paginator(rows, int(app_settings.LOGS_PER_PAGE)).get_page(request.GET.get("page"))
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# a VM's rows link to it while it is in the panel
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vms = dict(Instance.objects.filter(uuid__in={log.instance_uuid for log in logs if log.instance_uuid})
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.values_list("uuid", "pk"))
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for log in logs:
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log.vm_pk = vms.get(log.instance_uuid)
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return render(request, "admin/logs.html", {"logs": logs, "q": text, "failed": failed, "query": query,
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"time_zone": timezone.get_current_timezone_name()})
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@superuser_only
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def logs_export(request):
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"""The rows the Logs page shows for the same search, every page of them,
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as an Excel workbook."""
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rows, text, failed, _query = _logs(request)
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zone = timezone.get_current_timezone_name()
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header = [f"Date ({zone})", "User", "Host", "VM", "VM UUID", "Message", "Result", "IP"]
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logs = list(rows[:EXPORT_ROWS + 1])
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data = [[timezone.localtime(log.date).strftime("%Y-%m-%d %H:%M:%S"), log.user, log.host, log.instance,
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log.instance_uuid, log.message, str(_result(log.success)), log.ip or ""] for log in logs[:EXPORT_ROWS]]
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notes = [f"Search: {text}" if text else "Search: none", "Failed only" if failed else "All results",
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f"Rows: {len(data)}", f"Times in {zone}"]
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if len(logs) > EXPORT_ROWS:
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notes.append(f"Only the newest {EXPORT_ROWS} rows: narrow the search for the others")
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response = HttpResponse(workbook("Logs", header, data, "About", notes),
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content_type="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
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name = f"webvirtcloud-logs-{timezone.localtime():%Y%m%d-%H%M%S}.xlsx"
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response["Content-Disposition"] = f'attachment; filename="{name}"'
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return response
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@superuser_only
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def tombstone_list(request):
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"""The owners kept for VMs that vanished from their compute, in case the
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same UUID comes back."""
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tombstones = list(InstanceTombstone.objects.order_by("-removed"))
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ids = {owner["user"] for tombstone in tombstones for owner in tombstone.owners}
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names = dict(User.objects.filter(id__in=ids).values_list("id", "username"))
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retention = timedelta(days=getattr(settings, "INSTANCE_OWNERSHIP_RETENTION_DAYS", 30))
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for tombstone in tombstones:
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tombstone.owner_names = [names.get(owner["user"], _("deleted user")) for owner in tombstone.owners]
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tombstone.expires = tombstone.removed + retention
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return render(request, "admin/tombstone_list.html", {"tombstones": tombstones})
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@superuser_only
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def tombstone_delete(request, pk):
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tombstone = get_object_or_404(InstanceTombstone, pk=pk)
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if request.method == "POST":
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with audit(request, None, f"Removed VM {tombstone.name} ({tombstone.uuid})", "delete"):
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tombstone.delete()
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messages.success(request, _("Removed VM %(name)s deleted") % {"name": tombstone.name})
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return redirect("admin:tombstone_list")
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return render(
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request,
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"common/confirm_delete.html",
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{"object": tombstone,
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"consequence": _("Its owners no longer get the VM back if its UUID shows up again.")},
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)
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