def test_dissert(self):
objs = [
{"accounts": {"actions": {"add": "", "delete": "", "edit": ""}}, "proftpd": {"ftp_client": {"access": "self", "type": {"write": {"access_change": ""}}}, "statistics": "self", "daemon": ""}},
{"accounts": {"actions": {"add": "", "delete": "", "edit": ""}}},
{"proftpd": {"ftp_client": {"access": "self", "type": {"write": {"access_change": ""}}}, "statistics": "self", "daemon": ""}},
{"accounts": {"actions": {"add": "", "delete": "", "edit": ""}}, "proftpd": {"ftp_client": {"access": "self", "type": {"write": {"access_change": ""}}}, "statistics": "self", "daemon": ""}},
{"proftpd": {"ftp_client": {"access": "self", "type": {"write": {"access_change": ""}}}, "statistics": "self", "daemon": ""}}
]
dissect = [
{"accounts": {"actions": {"add": "", "edit": ""}}, "proftpd": {"ftp_client": {"access": "self", "type": "read"}, "statistics": "self", "daemon": ""}},
{"accounts": {"actions": {"add": ""}}, "proftpd": {"ftp_client": {"type": {"write": {"access_change": ""}}}}},
{"proftpd": {"ftp_client": {"access": "self", "type": "read"}, "statistics": "self", "daemon": ""}},
{"accounts": {"actions": {"add": "", "delete": "", "edit": ""}}},
{"proftpd": {"ftp_client": {"access": "self", "type": {"write": {"access_change": ""}}}, "statistics": "self", "daemon": ""}},
]
result = [
{'proftpd': {'ftp_client': {'type': {"write": {"access_change": ""}}}}, 'accounts': {'actions': {'delete': ''}}},
{"accounts": {"actions": {"delete": "", "edit": ""}}},
{"proftpd": {"ftp_client": {"type": {"write": {"access_change": ""}}}}},
{"proftpd": {"ftp_client": {"access": "self", "type": {"write": {"access_change": ""}}}, "statistics": "self", "daemon": ""}},
{}
]
i = 0
for o in objs:
perm_obj = Permission(o)
perm_obj.dissect(dissect[i])
self.assertTrue(perm_obj.permissions == result[i])
i += 1
def manage(request, mode, action):
data_str = request.POST.get("data", None)
formset_id = request.COOKIES.get("formset_id", None)
instance_id = request.POST.get("id", request.GET.get("id", None))
data = None
# If in the "edit" mode, account_obj contains either a user or a group object
# Otherwise the object is None
account_obj = None
"""
If data is send, write this data in cache and follow the following steps
accordingly. Otherwise, if it's a step back return the cached data. In any
other case it should be the first request in a formset, so return an empty
form.
"""
if data_str:
# The user is submitting the form. Trying to deserialize data first.
try:
data = json.loads(data_str)
except: # Damn... returng a bad request error
log(6, "accounts_app - account add", "Failed to serialize data string: %s" % data_str)
return HttpResponseBadRequest()
# Let's dig out the previously recorded data from the cache.
formset = cache.get(formset_id)
# If the request uses POST method, apperently the user is submiting the form
if request.method == "POST":
if formset:
step = formset["step"]
object = formset["object"]
# Fetching an object from the DB
if instance_id and action == "edit":
if object == "user":
class_obj = WenixUser
else:
class_obj = WenixGroup
account_obj = class_obj.objects.get(pk=instance_id)
if data:
# Get the form and check wether the submitted data valid or not.
form = get_form(object.title(), action, step)(data)
if not form.is_valid():
print data
print form
return HttpResponse(json.dumps({"ok": 0,"errors": get_errors(form, data)}),
mimetype="application/json")
# Update formset. All data in the following lines could be reached
# only with the formset.
formset["data"].update(data)
"""
If it's the last step in a formset we don't need to return the next
step, but rather we return the result of the user/group creation.
"""
if object == "user" and step == 3:
u_perm_obj = Permission(formset["data"]["permissions"])
perm_obj = Permission(request.user.merged_permissions())
groups = WenixGroup.objects.in_bulk(formset["data"]["groups"]).values()
g_perm_obj = Permission()
for group in groups:
g_perm_obj.merge(group.permissions)
if u_perm_obj >= g_perm_obj and u_perm_obj <= perm_obj:
"""
Priviliges check has passed. We have nothing to do but to
create or change the user.
We don't want redundancy, therefore the common attributes
will be fetched here.
"""
# User permissions first
permissions = u_perm_obj.dissect(g_perm_obj.permissions)
if action == "add":
new_user = WenixUser.objects.create(username=formset["data"]["username"])
# Saving general information about the user
for key in ("first_name", "last_name", "email", "permissions"):
setattr(new_user, key, formset["data"][key])
# Changing the user's membership
new_user.groups = groups
# We need to store a clean user password in order for
# other modules to be aware of it
new_user.password = formset["data"]["password"]
# Invoking a method to notify all modules about the new user
WenixUser.objects.on_create(new_user)
# Setting crypted password and saving the user
new_user.set_password(formset["data"]['password'])
new_user.save()
message = _("A new user '%(username)s' has been created") % {"username": new_user.username}
else: # action == "edit"
account_obj.save()
# Saving general information about the user
for key in ("first_name", "last_name", "email", "permissions"):
setattr(account_obj, key, formset["data"][key])
# Resetting the user's password if needed
if formset["data"]['password']:
account_obj.set_password(formset["data"]['password'])
# Changing the user's membership
account_obj.groups = groups
account_obj.save()
# Invoking a method to notify all modules about the change
WenixUser.objects.on_edit(account_obj, formset["data"])
message = _("The user '%(username)s' has been changed") % {"username": account_obj.username}
response = HttpResponse(json.dumps({"ok": 1,"message": message}))
response.delete_cookie("formset_id")
return response
else:
"""
It turns out as if the user created another user with higher
priviliges. That breaks the rules, therefore access should be
denied.
"""
log(5, "accounts_app - account add", "Permission denied for user '%s' creating another user" % request.user.username)
return HttpResponse(json.dumps({"ok": 1, "message": _("Access denied")}))
elif object == "group" and step == 2:
g_perm_obj = Permission(formset["data"]["permissions"])
perm_obj = Permission(request.user.merged_permissions())
if g_perm_obj <= perm_obj:
# Fetching users to be included in the group
users = WenixUser.objects.in_bulk(formset["data"]["users"] or []).values()
"""
Priviliges check has passed. We have nothing to do but to
create or change the group.
"""
if action == "add":
# We are going to create a new group.
group = WenixGroup.objects.create(name=formset["data"]["name"],
permissions=g_perm_obj.permissions)
# The new members of the group should have their priviliges updated
[user.groups.add(group) for user in users]
WenixGroup.objects.on_create(group)
message = _("A new group '%(name)s' has been created") % {"name": formset["data"]["name"]}
else: # action == "edit"
# We are going to change a group.
group = account_obj
# Reseting users's permissions so they can form again
# At the same time if a user was in the MultipleChoice
# field remove his membership from the group
choice_ids = dict(id_and_name_to_dict(request.user, mode, "user")).keys()
old_group_users = WenixUser.objects.filter(groups__name=group.name)
for u in old_group_users:
#cache.delete(CACHE_KEY_UGRPERM % u.username)
#cache.delete(CACHE_KEY_USERPERM % u.username)
if str(u.id) in choice_ids:
u.groups.remove(group)
# Contructing a new dictionary with old_dat to pass with "on_edit" method
old_data = {"permissions": group.permissions,
"users": old_group_users}
group.permissions = g_perm_obj.permissions
group.save()
# We're going to add users to the group
for user in users:
user.groups.add(group)
#if not user in old_group_users:
# cache.delete(CACHE_KEY_UGRPERM % user.username)
# cache.delete(CACHE_KEY_USERPERM % user.username)
# On edit method has three arguments: user, object_being_changed and new_data
WenixGroup.objects.on_edit(request.user, group, old_data)
message = _("The priviliges for the group '%(name)s' have been saved") % {"name": group.name}
response = HttpResponse(json.dumps({"ok": 1,"message": message}))
response.delete_cookie("formset_id")
return response
else:
"""
It turns out as if the user created another group with higher
priviliges. That breaks the rules, therefore access should be
denied.
"""
log(6, "accounts_app - account add", "Permission denied for user '%s' creating another group" % request.user.username)
return HttpResponse(json.dumps({"ok": 1,"message": _("Access denied")}))
formset["step"] += 1
else:
if formset["step"] > 1:
formset["step"] -= 1
else:
formset["step"] = 1
step = formset["step"]
form = get_form(object.title(), action, step)
# Generating the next form according to the step
if object == "user":
if step == 1:
new_form = form(initial=formset["data"])
elif step == 2:
"""
We need to initialize group list here. At the same time we can't
list groups the user is not a memeber of if she's in the "group"
mode. That's why we use "id_and_name_to_dict" function to generate
the list.
"""
new_form = form(initial=formset['data'])
new_form["groups"].field.choices = id_and_name_to_dict(request.user, mode, "group")
elif step == 3:
# Generating permissions
groups = WenixGroup.objects.in_bulk(data["groups"])
perm_obj = Permission(request.user.merged_permissions())
g_perm_obj = Permission()
for g in groups:
g_perm_obj.merge(groups[g].permissions)
if action == "add":
new_form = {"permissions": perm_obj.render(g_perm_obj.permissions)}
else: # action == "edit"
u_perm_obj = Permission(account_obj.permissions)
u_perm_obj.merge(g_perm_obj.permissions)
new_form = {"permissions": perm_obj.render(g_perm_obj.permissions, u_perm_obj.permissions)}
else:
# Unrecognised step
log(6, "accounts_app - account add", "Unknown step: %s" % step)
return HttpResponseBadRequest()
elif object == "group":
if step == 1:
new_form = form(initial=formset["data"])
new_form["users"].field.choices = id_and_name_to_dict(request.user, mode, "user")
elif step == 2:
# Generating permissions
perm_obj = Permission(request.user.merged_permissions())
if action == "add":
new_form = {"permissions": perm_obj.render()}
else: # action == "edit"
g_perm_obj = Permission(WenixGroup.objects.get(pk=instance_id).permissions)
new_form = {"permissions": perm_obj.render({}, g_perm_obj.permissions)}
else:
# Unrecognised step
log(6, "accounts_app - account add", "Unknown step: %s" % step)
return HttpResponseBadRequest()
template = get_template(TEMPLATE_FORM_PATH % object)
cache.set(formset_id, formset)
context = Context({"form": new_form, "step": formset["step"], "action": action, "object": account_obj})
return HttpResponse(json.dumps({"ok": 1, "html": template.render(context)}),
mimetype="application/json")
# No formset is found. Therefore, we conclude this is the first step.
object = request.POST.get("object", request.GET.get("object", ""))
if not object in ("user", "group"):
log(3, "accounts_app - account add", "An alien object type '%s' has been spotted" % object)
return HttpResponseBadRequest()
# Create a new formset
cache.delete(formset_id)
formset_id = gen_formset_id(CACHE_FORMSET[action], object)
form_obj = get_form(object, action, 1)
if action == "add":
data = {}
form = form_obj()
else: # action == "edit"
if object == "user":
account_obj = WenixUser.objects.get(pk=instance_id)
data = {"groups": map(lambda x: str(int(x)), account_obj.groups.all().values_list("id", flat=True))}
form = form_obj(instance=account_obj)
else: # object == "group"
account_obj = WenixGroup.objects.get(pk=instance_id)
data = {"users": map(lambda x: str(int(x)), WenixUser.objects.filter(groups__name=account_obj.name).values_list("id", flat=True))}
form = form_obj(initial=data)
# An ugly way to initialize users list
if object == "group":
form["users"].field.choices = id_and_name_to_dict(request.user, mode, "user")
cache.set(formset_id, {"object": object, "step": 1, "data": data})
response = render_to_response(TEMPLATE_FORM_PATH % object, {"form": form, "step": 1, "action": action, "object": account_obj})
response.set_cookie("formset_id", formset_id, FORMSET_ID_MAXAGE)
return response
