kopia lustrzana https://gitlab.com/marnanel/chapeau
349 wiersze
10 KiB
Python
349 wiersze
10 KiB
Python
from django_kepi import ATSIGN_CONTEXT
|
|
import django_kepi.validation
|
|
from django_kepi.find import find
|
|
from django.shortcuts import render, get_object_or_404
|
|
import django.views
|
|
from django.http import HttpResponse, JsonResponse, Http404
|
|
from django.contrib.auth.decorators import login_required
|
|
from django.core.exceptions import ValidationError
|
|
from django.conf import settings
|
|
from django_kepi.models import Thing, ThingField, Following, Actor
|
|
from collections.abc import Iterable
|
|
import logging
|
|
import urllib.parse
|
|
import json
|
|
import re
|
|
from collections import defaultdict
|
|
|
|
logger = logging.getLogger(name='django_kepi')
|
|
|
|
PAGE_LENGTH = 50
|
|
PAGE_FIELD = 'page'
|
|
|
|
class KepiView(django.views.View):
|
|
|
|
def __init__(self):
|
|
super().__init__()
|
|
|
|
self.http_method_names.append('activity')
|
|
|
|
def activity(self, request, *args, **kwargs):
|
|
"""
|
|
Returns this view in a form suitable for ActivityPub.
|
|
|
|
It may return:
|
|
- a dict, suitable for turning into JSON
|
|
- an iterable, such as a list or QuerySet;
|
|
this will be turned into an OrderedCollection.
|
|
Every member will be passed through
|
|
_modify_list_item before rendering.
|
|
- anything with a property called "activity_form";
|
|
this value should be either an iterable or a dict,
|
|
as above.
|
|
|
|
This method is usually called by a KepiView's get() handler.
|
|
By default, its args and kwargs will be passed in unchanged.
|
|
|
|
It's also used to retrieve the ActivityPub form within
|
|
the rest of the program, rather than as a response to
|
|
a particular HTTP request. In that case, "request" will
|
|
not be a real HttpRequest. (XXX so, what *will* it be?)
|
|
|
|
Override this method in your subclass. In KepiView
|
|
it's abstract.
|
|
"""
|
|
raise NotImplementedError("implement activity() in a subclass: %s" % (
|
|
self.__class__,
|
|
))
|
|
|
|
def get(self, request, *args, **kwargs):
|
|
"""
|
|
Returns a rendered HttpResult for a GET request.
|
|
|
|
By default, KepiViews call self.activity() to get
|
|
the data to render.
|
|
"""
|
|
result = self.activity(request, *args, **kwargs)
|
|
|
|
if result is None:
|
|
raise Http404()
|
|
|
|
logger.debug('About to render object: %s',
|
|
result)
|
|
|
|
while True:
|
|
if isinstance(result, dict):
|
|
return self._render(result)
|
|
|
|
if isinstance(result, Iterable):
|
|
return self._collection_get(request, result)
|
|
|
|
try:
|
|
result = result.activity_form
|
|
logger.debug(' -- it has an activity_form, %s; recurring',
|
|
result)
|
|
except AttributeError:
|
|
logger.warn("I don't know how to render objects like %s.", result)
|
|
raise ValueError("I don't know how to render objects like %s." % (result,))
|
|
|
|
def _render(self, data):
|
|
result = JsonResponse(
|
|
data=data,
|
|
json_dumps_params={
|
|
'sort_keys': True,
|
|
'indent': 2,
|
|
}
|
|
)
|
|
|
|
result['Content-Type'] = 'application/activity+json'
|
|
|
|
if data['type']=='Tombstone':
|
|
result.reason = 'Entombed'
|
|
result.status_code = 410
|
|
|
|
return result
|
|
|
|
def _collection_get(self, request, items):
|
|
|
|
# XXX assert that items.ordered
|
|
|
|
our_url = request.build_absolute_uri()
|
|
index_url = self._make_query_page(request, None)
|
|
|
|
if PAGE_FIELD in request.GET:
|
|
|
|
page_number = int(request.GET[PAGE_FIELD])
|
|
|
|
start = (page_number-1) * PAGE_LENGTH
|
|
|
|
listed_items = items[start: start+PAGE_LENGTH]
|
|
|
|
result = {
|
|
"@context": ATSIGN_CONTEXT,
|
|
"type" : "OrderedCollectionPage",
|
|
"id" : our_url,
|
|
"totalItems" : items.count(),
|
|
"orderedItems" : [self._modify_list_item(x)
|
|
for x in listed_items],
|
|
"partOf": index_url,
|
|
}
|
|
|
|
if page_number > 1:
|
|
result["prev"] = self._make_query_page(request, page_number-1)
|
|
|
|
if start+PAGE_LENGTH < items.count():
|
|
result["next"] = self._make_query_page(request, page_number+1)
|
|
|
|
else:
|
|
|
|
# Index page.
|
|
|
|
result = {
|
|
"@context": ATSIGN_CONTEXT,
|
|
"type": "OrderedCollection",
|
|
"id": index_url,
|
|
"totalItems" : items.count(),
|
|
}
|
|
|
|
if items.exists():
|
|
result["first"] = "{}?page=1".format(our_url,)
|
|
|
|
return self._render(result)
|
|
|
|
def _make_query_page(
|
|
self,
|
|
request,
|
|
page_number,
|
|
):
|
|
fields = dict(request.GET)
|
|
|
|
if page_number is None:
|
|
if PAGE_FIELD in fields:
|
|
del fields[PAGE_FIELD]
|
|
else:
|
|
fields[PAGE_FIELD] = page_number
|
|
|
|
encoded = urllib.parse.urlencode(fields)
|
|
|
|
if encoded!='':
|
|
encoded = '?'+encoded
|
|
|
|
return '{}://{}{}{}'.format(
|
|
request.scheme,
|
|
request.get_host(),
|
|
request.path,
|
|
encoded,
|
|
)
|
|
|
|
def _modify_list_item(self, obj):
|
|
return str(obj)
|
|
|
|
class ThingView(KepiView):
|
|
|
|
def activity(self, request, *args, **kwargs):
|
|
|
|
try:
|
|
if 'id' in kwargs:
|
|
logger.debug('Looking up Thing by id==%s',
|
|
kwargs['id'])
|
|
activity_object = Thing.objects.get(
|
|
number=kwargs['id'],
|
|
)
|
|
|
|
elif 'name' in kwargs:
|
|
logger.debug('Looking up Thing by name==%s',
|
|
kwargs['name'])
|
|
activity_object = Thing.objects.get(
|
|
f_name=kwargs['name'],
|
|
)
|
|
else:
|
|
raise ValueError("Need an id or a name")
|
|
|
|
except Thing.DoesNotExist:
|
|
logger.info(' -- unknown: %s', kwargs)
|
|
return None
|
|
except django.core.exceptions.ValidationError:
|
|
logger.info(' -- invalid: %s', kwargs)
|
|
return None
|
|
|
|
result = activity_object
|
|
logger.debug(' -- found object: %s', result)
|
|
|
|
return result
|
|
|
|
class FollowingView(KepiView):
|
|
|
|
def activity(self, request, *args, **kwargs):
|
|
|
|
logger.debug('Finding following of %s:', kwargs['name'])
|
|
|
|
person = Thing.objects.get(
|
|
f_type='Person',
|
|
f_name = kwargs['name'],
|
|
)
|
|
|
|
logging.debug('Finding followers of %s: %s',
|
|
kwargs['name'], person)
|
|
|
|
return Following.objects.filter(follower=person.url,
|
|
pending=False)
|
|
|
|
def _modify_list_item(self, obj):
|
|
return obj.following
|
|
|
|
class FollowersView(KepiView):
|
|
|
|
def activity(self, request, *args, **kwargs):
|
|
|
|
logger.debug('Finding followers of %s:', kwargs['name'])
|
|
|
|
person = Thing.objects.get(
|
|
f_type='Person',
|
|
f_name=kwargs['name'],
|
|
)
|
|
|
|
logging.debug('Finding followers of %s: %s',
|
|
kwargs['name'], person)
|
|
|
|
return Following.objects.filter(following=person.url,
|
|
pending=False)
|
|
|
|
def _modify_list_item(self, obj):
|
|
return obj.follower
|
|
|
|
class ActorView(ThingView):
|
|
|
|
def activity(self, request, *args, **kwargs):
|
|
thing = super().activity(request, *args, **kwargs)
|
|
|
|
if thing.f_type=='Tombstone':
|
|
return thing
|
|
|
|
logger.debug(' -- found Thing %s; does it have an Actor?',
|
|
thing)
|
|
|
|
try:
|
|
result = Actor.objects.get(
|
|
thing=thing,
|
|
)
|
|
logger.debug(' -- yes, %s',
|
|
result)
|
|
return result
|
|
except Actor.DoesNotExist:
|
|
logger.debug(' -- no')
|
|
return None
|
|
|
|
class AllUsersView(KepiView):
|
|
|
|
def activity(self, request, *args, **kwargs):
|
|
|
|
logger.debug('Finding all users.')
|
|
|
|
return Thing.objects.filter(f_type='Person')
|
|
|
|
def _modify_list_item(self, obj):
|
|
return obj.activity_form
|
|
|
|
########################################
|
|
|
|
class InboxView(django.views.View):
|
|
|
|
def post(self, request, name=None, *args, **kwargs):
|
|
|
|
# name is None for the shared inbox.
|
|
|
|
if request.META['CONTENT_TYPE'] not in [
|
|
'application/activity+json',
|
|
'application/json',
|
|
]:
|
|
return HttpResponse(
|
|
status = 415, # unsupported media type
|
|
reason = 'Try application/activity+json',
|
|
)
|
|
|
|
try:
|
|
decoded_body = json.loads(
|
|
str(request.body, encoding='UTF-8'))
|
|
except json.decoder.JSONDecodeError:
|
|
return HttpResponse(
|
|
status = 415, # unsupported media type
|
|
reason = 'Invalid JSON',
|
|
)
|
|
except UnicodeDecodeError:
|
|
return HttpResponse(
|
|
status = 400, # bad request
|
|
reason = 'Invalid UTF-8',
|
|
)
|
|
|
|
capture = django_kepi.validation.IncomingMessage(
|
|
date = request.META['HTTP_DATE'],
|
|
host = request.META['HOST'],
|
|
path = request.path,
|
|
signature = request.META['HTTP_SIGNATURE'],
|
|
content_type = request.META['CONTENT_TYPE'],
|
|
body = json.dumps(decoded_body),
|
|
)
|
|
capture.save()
|
|
logger.debug('%s: received %s with headers %s at %s -- now validating',
|
|
capture,
|
|
str(request.body, encoding='UTF-8'),
|
|
dict(request.META.items()),
|
|
request.path,
|
|
)
|
|
|
|
django_kepi.validation.validate(message_id=capture.id)
|
|
logger.debug('%s: finished kicking off validation; returning to HTTP caller',
|
|
capture,
|
|
)
|
|
|
|
return HttpResponse(
|
|
status = 200,
|
|
reason = 'Thank you',
|
|
content = '',
|
|
content_type = 'text/plain',
|
|
)
|
|
|
|
# We need to support GET (as a collection)
|
|
# but we don't yet.
|
|
|