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import string
from django import forms
from django.contrib.auth.decorators import login_required
from django.http import Http404
from django.shortcuts import redirect
from django.utils.decorators import method_decorator
from django.views.generic import FormView, TemplateView, View
from core.models import Config
from users.decorators import identity_required
from users.models import Domain, Follow, FollowStates, Identity, IdentityStates
from users.shortcuts import by_handle_or_404
class ViewIdentity(TemplateView):
template_name = "identity/view.html"
def get_context_data(self, handle):
identity = by_handle_or_404(
self.request,
handle,
local=False,
fetch=True,
)
posts = identity.posts.all()[:100]
if identity.data_age > Config.system.identity_max_age:
identity.transition_perform(IdentityStates.outdated)
follow = None
if self.request.identity:
follow = Follow.maybe_get(self.request.identity, identity)
if follow and follow.state not in [
FollowStates.unrequested,
FollowStates.local_requested,
FollowStates.accepted,
]:
follow = None
return {
"identity": identity,
"posts": posts,
"follow": follow,
}
@method_decorator(identity_required, name="dispatch")
class ActionIdentity(View):
def post(self, request, handle):
identity = by_handle_or_404(self.request, handle, local=False)
# See what action we should perform
action = self.request.POST["action"]
if action == "follow":
existing_follow = Follow.maybe_get(self.request.identity, identity)
if not existing_follow:
Follow.create_local(self.request.identity, identity)
elif existing_follow.state in [
FollowStates.undone,
FollowStates.undone_remotely,
]:
existing_follow.transition_perform(FollowStates.unrequested)
elif action == "unfollow":
existing_follow = Follow.maybe_get(self.request.identity, identity)
if existing_follow:
existing_follow.transition_perform(FollowStates.undone)
else:
raise ValueError(f"Cannot handle identity action {action}")
return redirect(identity.urls.view)
@method_decorator(login_required, name="dispatch")
class SelectIdentity(TemplateView):
template_name = "identity/select.html"
def get_context_data(self):
return {
"identities": Identity.objects.filter(users__pk=self.request.user.pk),
}
@method_decorator(login_required, name="dispatch")
class ActivateIdentity(View):
def get(self, request, handle):
identity = by_handle_or_404(request, handle)
if not identity.users.filter(pk=request.user.pk).exists():
raise Http404()
request.session["identity_id"] = identity.id
# Get next URL, not allowing offsite links
next = request.GET.get("next") or "/"
if ":" in next:
next = "/"
return redirect("/")
@method_decorator(login_required, name="dispatch")
class CreateIdentity(FormView):
template_name = "identity/create.html"
class form_class(forms.Form):
username = forms.CharField(
help_text="Must be unique on your domain. Cannot be changed easily. Use only: a-z 0-9 _ -"
)
domain = forms.ChoiceField(
help_text="Pick the domain to make this identity on. Cannot be changed later."
)
name = forms.CharField(
help_text="The display name other users see. You can change this easily."
)
def __init__(self, user, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields["domain"].choices = [
(domain.domain, domain.domain)
for domain in Domain.available_for_user(user)
]
def clean_username(self):
# Remove any leading @ and force it lowercase
value = self.cleaned_data["username"].lstrip("@").lower()
# Validate it's all ascii characters
for character in value:
if character not in string.ascii_letters + string.digits + "_-":
raise forms.ValidationError(
"Only the letters a-z, numbers 0-9, dashes, and underscores are allowed."
)
return value
def clean(self):
# Check for existing users
username = self.cleaned_data.get("username")
domain = self.cleaned_data.get("domain")
if (
username
and domain
and Identity.objects.filter(username=username, domain=domain).exists()
):
raise forms.ValidationError(f"{username}@{domain} is already taken")
def get_form(self):
form_class = self.get_form_class()
return form_class(user=self.request.user, **self.get_form_kwargs())
def form_valid(self, form):
username = form.cleaned_data["username"]
domain = form.cleaned_data["domain"]
domain_instance = Domain.get_domain(domain)
new_identity = Identity.objects.create(
actor_uri=f"https://{domain_instance.uri_domain}/@{username}@{domain}/actor/",
username=username.lower(),
domain_id=domain,
name=form.cleaned_data["name"],
local=True,
)
new_identity.users.add(self.request.user)
new_identity.generate_keypair()
return redirect(new_identity.urls.view)
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