From 43e113e420a19becdc8a0cb9a62e98ae85d05f07 Mon Sep 17 00:00:00 2001 From: Thomas Sileo Date: Fri, 18 May 2018 20:41:41 +0200 Subject: [PATCH] Initial import --- .dockerignore | 1 + .gitignore | 8 + .travis.yml | 9 + Dockerfile | 6 + LICENSE | 661 +++++++++++++++ Makefile | 5 + README.md | 74 ++ activitypub.py | 978 +++++++++++++++++++++++ app.py | 1014 ++++++++++++++++++++++++ config.py | 83 ++ config/me.sample.yml | 6 + data/.gitignore | 2 + docker-compose-dev.yml | 21 + docker-compose.yml | 30 + requirements.txt | 21 + sass/base_theme.scss | 207 +++++ sass/theme.scss | 1 + setup.cfg | 2 + static/base.css | 160 ++++ static/css/.gitignore | 2 + static/media/.gitignore | 2 + static/nopic.png | Bin 0 -> 1791 bytes tasks.py | 56 ++ templates/about.html | 22 + templates/admin.html | 30 + templates/authorize_remote_follow.html | 15 + templates/followers.html | 16 + templates/following.html | 16 + templates/header.html | 29 + templates/index.html | 45 ++ templates/indieauth_flow.html | 42 + templates/layout.html | 29 + templates/login.html | 36 + templates/new.html | 17 + templates/note.html | 23 + templates/remote_follow.html | 16 + templates/stream.html | 39 + templates/tags.html | 30 + templates/u2f.html | 29 + templates/utils.html | 91 +++ utils/__init__.py | 0 utils/actor_service.py | 72 ++ utils/content_helper.py | 57 ++ utils/httpsig.py | 87 ++ utils/key.py | 39 + utils/linked_data_sig.py | 53 ++ utils/object_service.py | 60 ++ utils/opengraph.py | 46 ++ utils/urlutils.py | 27 + utils/webfinger.py | 63 ++ 50 files changed, 4378 insertions(+) create mode 100644 .dockerignore create mode 100644 .gitignore create mode 100644 .travis.yml create mode 100644 Dockerfile create mode 100644 LICENSE create mode 100644 Makefile create mode 100644 README.md create mode 100644 activitypub.py create mode 100644 app.py create mode 100644 config.py create mode 100644 config/me.sample.yml create mode 100644 data/.gitignore create mode 100644 docker-compose-dev.yml create mode 100644 docker-compose.yml create mode 100644 requirements.txt create mode 100644 sass/base_theme.scss create mode 100644 sass/theme.scss create mode 100644 setup.cfg create mode 100644 static/base.css create mode 100644 static/css/.gitignore create mode 100644 static/media/.gitignore create mode 100644 static/nopic.png create mode 100644 tasks.py create mode 100644 templates/about.html create mode 100644 templates/admin.html create mode 100644 templates/authorize_remote_follow.html create mode 100644 templates/followers.html create mode 100644 templates/following.html create mode 100644 templates/header.html create mode 100644 templates/index.html create mode 100644 templates/indieauth_flow.html create mode 100644 templates/layout.html create mode 100644 templates/login.html create mode 100644 templates/new.html create mode 100644 templates/note.html create mode 100644 templates/remote_follow.html create mode 100644 templates/stream.html create mode 100644 templates/tags.html create mode 100644 templates/u2f.html create mode 100644 templates/utils.html create mode 100644 utils/__init__.py create mode 100644 utils/actor_service.py create mode 100644 utils/content_helper.py create mode 100644 utils/httpsig.py create mode 100644 utils/key.py create mode 100644 utils/linked_data_sig.py create mode 100644 utils/object_service.py create mode 100644 utils/opengraph.py create mode 100644 utils/urlutils.py create mode 100644 utils/webfinger.py diff --git a/.dockerignore b/.dockerignore new file mode 100644 index 0000000..8fce603 --- /dev/null +++ b/.dockerignore @@ -0,0 +1 @@ +data/ diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..e43f899 --- /dev/null +++ b/.gitignore @@ -0,0 +1,8 @@ +*.sw[op] +key_*.pem +data/* +config/* +static/media/* + +.mypy_cache/ +__pycache__/ diff --git a/.travis.yml b/.travis.yml new file mode 100644 index 0000000..e3b0785 --- /dev/null +++ b/.travis.yml @@ -0,0 +1,9 @@ +language: python +python: + - "3.6" +install: + - pip install pytest mypy flake8 +script: + - flake8 + - mypy --ignore-missing-imports + - pytest -v diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..3fed815 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,6 @@ +FROM python:3.6 +ADD . /app +WORKDIR /app +RUN pip install -r requirements.txt +ENV FLASK_APP=app.py +CMD ["gunicorn", "-w", "4", "-b", "0.0.0.0:5005", "app:app"] diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..be3f7b2 --- /dev/null +++ b/LICENSE @@ -0,0 +1,661 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Limitation of Liability. + + IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY +GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE +USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF +DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD +PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF +SUCH DAMAGES. + + 17. Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If your software can interact with users remotely through a computer +network, you should also make sure that it provides a way for users to +get its source. For example, if your program is a web application, its +interface could display a "Source" link that leads users to an archive +of the code. There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..bc473fc --- /dev/null +++ b/Makefile @@ -0,0 +1,5 @@ +css: + python -c "import sass; sass.compile(dirname=('sass', 'static/css'), output_style='compressed')" + +password: + python -c "import bcrypt; from getpass import getpass; print(bcrypt.hashpw(getpass().encode('utf-8'), bcrypt.gensalt()).decode('utf-8'))" diff --git a/README.md b/README.md new file mode 100644 index 0000000..071be44 --- /dev/null +++ b/README.md @@ -0,0 +1,74 @@ +# microblog.pub + +

+ microblog.pub +

+

+Version +Build Status +License +

+ +

A self-hosted, single-user, ActivityPub powered microblog.

+ +## Features + + - Implements a basic [ActivityPub](https://activitypub.rocks/) server (with federation) + - Compatible with [Mastodon](https://github.com/tootsuite/mastodon) and others (Pleroma, Hubzilla...) + - Also implements a remote follow compatible with Mastodon instances + - Expose your outbox as a basic microblog + - [IndieAuth](https://indieauth.spec.indieweb.org/) endpoints (authorization and token endpoint) + - U2F support + - You can use your ActivityPub identity to login to other websites/app + - Admin UI with notifications and the stream of people you follow + - Attach files to your notes + - Privacy-aware upload that strip EXIF meta data before storing the file + - No JavaScript, that's it, even the admin UI is pure HTML/CSS + - Easy to customize (the theme is written Sass) + - Microformats aware (exports `h-feed`, `h-entry`, `h-cards`, ...) + - Exports RSS/Atom feeds + - Comes with a tiny HTTP API to help posting new content and performing basic actions + - Deployable with Docker + +## Running your instance + +### Installation + +```shell +$ git clone +$ make css +``` + +### Configuration + +```shell +$ make password +``` + +### Deployment + +```shell +$ docker-compose up -d +``` + +You should use a reverse proxy... + +## Development + +The most convenient way to hack on microblog.pub is to run the server locally, and run + + +```shell +# One-time setup +$ pip install -r requirements.txt +# Start the Celery worker, RabbitMQ and MongoDB +$ docker-compose -f docker-compose-dev.yml up -d +# Run the server locally +$ FLASK_APP=app.py flask run -p 5005 --with-threads +``` + +## Contributions + +PRs are welcome, please open an issue to start a discussion before your start any work. diff --git a/activitypub.py b/activitypub.py new file mode 100644 index 0000000..2a4a937 --- /dev/null +++ b/activitypub.py @@ -0,0 +1,978 @@ +import typing +import re +import json +import binascii +import os +from datetime import datetime +from enum import Enum + +import requests +from bleach.linkifier import Linker +from bson.objectid import ObjectId +from html2text import html2text +from feedgen.feed import FeedGenerator +from markdown import markdown + +from utils.linked_data_sig import generate_signature +from utils.actor_service import NotAnActorError +from utils.webfinger import get_actor_url +from utils.content_helper import parse_markdown +from config import USERNAME, BASE_URL, ID +from config import CTX_AS, CTX_SECURITY, AS_PUBLIC +from config import KEY, DB, ME, ACTOR_SERVICE +from config import OBJECT_SERVICE +from config import PUBLIC_INSTANCES +import tasks + +from typing import List, Optional, Tuple, Dict, Any, Union, Type +from typing import TypeVar + +A = TypeVar('A', bound='BaseActivity') +ObjectType = Dict[str, Any] +ObjectOrIDType = Union[str, ObjectType] + + +# Pleroma sample +# {'@context': ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1', {'Emoji': 'toot:Emoji', 'Hashtag': 'as:Hashtag', 'atomUri': 'ostatus:atomUri', 'conversation': 'ostatus:conversation', 'inReplyToAtomUri': 'ostatus:inReplyToAtomUri', 'manuallyApprovesFollowers': 'as:manuallyApprovesFollowers', 'ostatus': 'http://ostatus.org#', 'sensitive': 'as:sensitive', 'toot': 'http://joinmastodon.org/ns#'}], 'actor': 'https://soc.freedombone.net/users/bob', 'attachment': [{'mediaType': 'image/jpeg', 'name': 'stallmanlemote.jpg', 'type': 'Document', 'url': 'https://soc.freedombone.net/media/e1a3ca6f-df73-4f2d-a931-c389a221b008/stallmanlemote.jpg'}], 'attributedTo': 'https://soc.freedombone.net/users/bob', 'cc': ['https://cybre.space/users/vantablack', 'https://soc.freedombone.net/users/bob/followers'], 'content': '@vantablack
stallmanlemote.jpg', 'context': 'tag:cybre.space,2018-04-05:objectId=5756519:objectType=Conversation', 'conversation': 'tag:cybre.space,2018-04-05:objectId=5756519:objectType=Conversation', 'emoji': {}, 'id': 'https://soc.freedombone.net/objects/3f0faeca-4d37-4acf-b990-6a50146d23cc', 'inReplyTo': 'https://cybre.space/users/vantablack/statuses/99808953472969467', 'inReplyToStatusId': 300713, 'like_count': 1, 'likes': ['https://cybre.space/users/vantablack'], 'published': '2018-04-05T21:30:52.658817Z', 'sensitive': False, 'summary': None, 'tag': [{'href': 'https://cybre.space/users/vantablack', 'name': '@vantablack@cybre.space', 'type': 'Mention'}], 'to': ['https://www.w3.org/ns/activitystreams#Public'], 'type': 'Note'} + + +class ActivityTypes(Enum): + ANNOUNCE = 'Announce' + BLOCK = 'Block' + LIKE = 'Like' + CREATE = 'Create' + UPDATE = 'Update' + PERSON = 'Person' + ORDERED_COLLECTION = 'OrderedCollection' + ORDERED_COLLECTION_PAGE = 'OrderedCollectionPage' + COLLECTION_PAGE = 'CollectionPage' + COLLECTION = 'Collection' + NOTE = 'Note' + ACCEPT = 'Accept' + REJECT = 'Reject' + FOLLOW = 'Follow' + DELETE = 'Delete' + UNDO = 'Undo' + IMAGE = 'Image' + TOMBSTONE = 'Tombstone' + + +def random_object_id() -> str: + return binascii.hexlify(os.urandom(8)).decode('utf-8') + + +def _remove_id(doc: ObjectType) -> ObjectType: + doc = doc.copy() + if '_id' in doc: + del(doc['_id']) + return doc + + +def _to_list(data: Union[List[Any], Any]) -> List[Any]: + if isinstance(data, list): + return data + return [data] + + +def clean_activity(activity: ObjectType) -> Dict[str, Any]: + # Remove the hidden bco and bcc field + for field in ['bto', 'bcc']: + if field in activity: + del(activity[field]) + if activity['type'] == 'Create' and field in activity['object']: + del(activity['object'][field]) + return activity + + +def _get_actor_id(actor: ObjectOrIDType) -> str: + if isinstance(actor, dict): + return actor['id'] + return actor + + +class BaseActivity(object): + ACTIVITY_TYPE = None # type: Optional[ActivityTypes] + NO_CONTEXT = False + ALLOWED_OBJECT_TYPES = None # type: List[ActivityTypes] + + def __init__(self, **kwargs) -> None: + if not self.ACTIVITY_TYPE: + raise ValueError('Missing ACTIVITY_TYPE') + + if kwargs.get('type') is not None and kwargs.pop('type') != self.ACTIVITY_TYPE.value: + raise ValueError('Expect the type to be {}'.format(self.ACTIVITY_TYPE)) + + self._data = {'type': self.ACTIVITY_TYPE.value} # type: Dict[str, Any] + + if 'id' in kwargs: + self._data['id'] = kwargs.pop('id') + + if self.ACTIVITY_TYPE != ActivityTypes.PERSON: + actor = kwargs.get('actor') + if actor: + kwargs.pop('actor') + actor = self._validate_person(actor) + self._data['actor'] = actor + else: + if not self.NO_CONTEXT: + actor = ID + self._data['actor'] = actor + + if 'object' in kwargs: + obj = kwargs.pop('object') + if isinstance(obj, str): + self._data['object'] = obj + else: + if not self.ALLOWED_OBJECT_TYPES: + raise ValueError('unexpected object') + if 'type' not in obj or (self.ACTIVITY_TYPE != ActivityTypes.CREATE and 'id' not in obj): + raise ValueError('invalid object') + if ActivityTypes(obj['type']) not in self.ALLOWED_OBJECT_TYPES: + print(self, kwargs) + raise ValueError(f'unexpected object type {obj["type"]} (allowed={self.ALLOWED_OBJECT_TYPES})') + self._data['object'] = obj + + if '@context' not in kwargs: + if not self.NO_CONTEXT: + self._data['@context'] = CTX_AS + else: + self._data['@context'] = kwargs.pop('@context') + + # @context check + if not self.NO_CONTEXT: + if not isinstance(self._data['@context'], list): + self._data['@context'] = [self._data['@context']] + if not CTX_SECURITY in self._data['@context']: + self._data['@context'].append(CTX_SECURITY) + if isinstance(self._data['@context'][-1], dict): + self._data['@context'][-1]['Hashtag'] = 'as:Hashtag' + self._data['@context'][-1]['sensitive'] = 'as:sensitive' + else: + self._data['@context'].append({'Hashtag': 'as:Hashtag', 'sensitive': 'as:sensitive'}) + + allowed_keys = None + try: + allowed_keys = self._init(**kwargs) + except NotImplementedError: + pass + + if allowed_keys: + # Allows an extra to (like for Accept and Follow) + kwargs.pop('to', None) + if len(set(kwargs.keys()) - set(allowed_keys)) > 0: + raise ValueError('extra data left: {}'.format(kwargs)) + else: + self._data.update(**kwargs) + + def _init(self, **kwargs) -> Optional[List[str]]: + raise NotImplementedError + + def _verify(self) -> None: + raise NotImplementedError + + def verify(self) -> None: + try: + self._verify() + except NotImplementedError: + pass + + def __repr__(self) -> str: + return '{}({!r})'.format(self.__class__.__qualname__, self._data.get('id')) + + def __str__(self) -> str: + return str(self._data['id']) + + def __getattr__(self, name: str) -> Any: + if self._data.get(name): + return self._data.get(name) + + @property + def type_enum(self) -> ActivityTypes: + return ActivityTypes(self.type) + + def set_id(self, uri: str, obj_id: str) -> None: + self._data['id'] = uri + + def _actor_id(self, obj: ObjectOrIDType) -> str: + if isinstance(obj, dict) and obj['type'] == ActivityTypes.PERSON.value: + obj_id = obj.get('id') + if not obj_id: + raise ValueError('missing object id') + return obj_id + else: + return str(obj) + + def _validate_person(self, obj: ObjectOrIDType) -> str: + obj_id = self._actor_id(obj) + try: + actor = ACTOR_SERVICE.get(obj_id) + except Exception: + return obj_id # FIXME(tsileo): handle this + if not actor: + raise ValueError('Invalid actor') + return actor['id'] + + def get_object(self) -> 'BaseActivity': + if self.__obj: + return self.__obj + if isinstance(self._data['object'], dict): + p = parse_activity(self._data['object']) + else: + if self.ACTIVITY_TYPE == ActivityTypes.FOLLOW: + p = Person(**ACTOR_SERVICE.get(self._data['object'])) + else: + obj = OBJECT_SERVICE.get(self._data['object']) + if ActivityTypes(obj.get('type')) not in self.ALLOWED_OBJECT_TYPES: + raise ValueError('invalid object type') + + p = parse_activity(obj) + + self.__obj = p # type: BaseActivity + return p + + def _to_dict(self, data: ObjectType) -> ObjectType: + return data + + def to_dict(self, embed: bool = False) -> ObjectType: + data = dict(self._data) + if embed: + for k in ['@context', 'signature']: + if k in data: + del(data[k]) + return self._to_dict(data) + + def get_actor(self) -> 'BaseActivity': + actor = self._data.get('actor') + if not actor: + if self.type_enum == ActivityTypes.NOTE: + actor = str(self._data.get('attributedTo')) + else: + raise ValueError('failed to fetch actor') + + actor_id = self._actor_id(actor) + return Person(**ACTOR_SERVICE.get(actor_id)) + + def _post_to_outbox(self, obj_id: str, activity: ObjectType, recipients: List[str]) -> None: + raise NotImplementedError + + def _undo_outbox(self) -> None: + raise NotImplementedError + + def _process_from_inbox(self) -> None: + raise NotImplementedError + + def _undo_inbox(self) -> None: + raise NotImplementedError + + def process_from_inbox(self) -> None: + self.verify() + actor = self.get_actor() + + if DB.outbox.find_one({'type': ActivityTypes.BLOCK.value, + 'activity.object': actor.id, + 'meta.undo': False}): + print('actor is blocked, drop activity') + return + + if DB.inbox.find_one({'remote_id': self.id}): + # The activity is already in the inbox + print('received duplicate activity') + return + + activity = self.to_dict() + DB.inbox.insert_one({ + 'activity': activity, + 'type': self.type, + 'remote_id': self.id, + 'meta': {'undo': False, 'deleted': False}, + }) + + try: + self._process_from_inbox() + except NotImplementedError: + pass + + def post_to_outbox(self) -> None: + obj_id = random_object_id() + self.set_id(f'{ID}/outbox/{obj_id}', obj_id) + self.verify() + activity = self.to_dict() + DB.outbox.insert_one({ + 'id': obj_id, + 'activity': activity, + 'type': self.type, + 'remote_id': self.id, + 'meta': {'undo': False, 'deleted': False}, + }) + + recipients = self.recipients() + activity = clean_activity(activity) + + try: + self._post_to_outbox(obj_id, activity, recipients) + except NotImplementedError: + pass + + #return + generate_signature(activity, KEY.privkey) + payload = json.dumps(activity) + print('will post') + for recp in recipients: + self._post_to_inbox(payload, recp) + print('done') + + def _post_to_inbox(self, payload: str, to: str): + tasks.post_to_inbox.delay(payload, to) + + def _recipients(self) -> List[str]: + return [] + + def recipients(self) -> List[str]: + recipients = self._recipients() + + out = [] # type: List[str] + for recipient in recipients: + if recipient in PUBLIC_INSTANCES: + if recipient not in out: + out.append(str(recipient)) + continue + if recipient in [ME, AS_PUBLIC, None]: + continue + if isinstance(recipient, Person): + if recipient.id == ME: + continue + actor = recipient + else: + try: + actor = Person(**ACTOR_SERVICE.get(recipient)) + except NotAnActorError as error: + # Is the activity a `Collection`/`OrderedCollection`? + if error.activity and error.activity['type'] in [ActivityTypes.COLLECTION.value, + ActivityTypes.ORDERED_COLLECTION.value]: + for item in parse_collection(error.activity): + if item in [ME, AS_PUBLIC]: + continue + try: + col_actor = Person(**ACTOR_SERVICE.get(item)) + except NotAnActorError: + pass + + if col_actor.endpoints: + shared_inbox = col_actor.endpoints.get('sharedInbox') + if shared_inbox not in out: + out.append(shared_inbox) + continue + if col_actor.inbox and col_actor.inbox not in out: + out.append(col_actor.inbox) + + continue + + if actor.endpoints: + shared_inbox = actor.endpoints.get('sharedInbox') + if shared_inbox not in out: + out.append(shared_inbox) + continue + + if actor.inbox and actor.inbox not in out: + out.append(actor.inbox) + + return out + + def build_undo(self) -> 'BaseActivity': + raise NotImplementedError + + +class Person(BaseActivity): + ACTIVITY_TYPE = ActivityTypes.PERSON + + def _init(self, **kwargs): + #if 'icon' in kwargs: + # self._data['icon'] = Image(**kwargs.pop('icon')) + pass + + def _verify(self) -> None: + ACTOR_SERVICE.get(self._data['id']) + + def _to_dict(self, data): + #if 'icon' in data: + # data['icon'] = data['icon'].to_dict() + # + return data + + +class Block(BaseActivity): + ACTIVITY_TYPE = ActivityTypes.BLOCK + + +class Collection(BaseActivity): + ACTIVITY_TYPE = ActivityTypes.COLLECTION + + +class Image(BaseActivity): + ACTIVITY_TYPE = ActivityTypes.IMAGE + NO_CONTEXT = True + + def _init(self, **kwargs): + self._data.update( + url=kwargs.pop('url'), + ) + + def __repr__(self): + return 'Image({!r})'.format(self._data.get('url')) + + +class Follow(BaseActivity): + ACTIVITY_TYPE = ActivityTypes.FOLLOW + ALLOWED_OBJECT_TYPES = [ActivityTypes.PERSON] + + def _build_reply(self, reply_type: ActivityTypes) -> BaseActivity: + if reply_type == ActivityTypes.ACCEPT: + return Accept( + object=self.to_dict(embed=True), + ) + + raise ValueError(f'type {reply_type} is invalid for building a reply') + + def _recipients(self) -> List[str]: + return [self.get_object().id] + + def _process_from_inbox(self) -> None: + accept = self.build_accept() + accept.post_to_outbox() + + remote_actor = self.get_actor().id + + if DB.followers.find({'remote_actor': remote_actor}).count() == 0: + DB.followers.insert_one({'remote_actor': remote_actor}) + + def _undo_inbox(self) -> None: + DB.followers.delete_one({'remote_actor': self.get_actor().id}) + + def build_accept(self) -> BaseActivity: + return self._build_reply(ActivityTypes.ACCEPT) + + def build_undo(self) -> BaseActivity: + return Undo(object=self.to_dict(embed=True)) + + +class Accept(BaseActivity): + ACTIVITY_TYPE = ActivityTypes.ACCEPT + ALLOWED_OBJECT_TYPES = [ActivityTypes.FOLLOW] + + def _recipients(self) -> List[str]: + return [self.get_object().get_actor().id] + + def _process_from_inbox(self) -> None: + remote_actor = self.get_actor().id + if DB.following.find({'remote_actor': remote_actor}).count() == 0: + DB.following.insert_one({'remote_actor': remote_actor}) + + +class Undo(BaseActivity): + ACTIVITY_TYPE = ActivityTypes.UNDO + ALLOWED_OBJECT_TYPES = [ActivityTypes.FOLLOW, ActivityTypes.LIKE, ActivityTypes.ANNOUNCE] + + def _recipients(self) -> List[str]: + obj = self.get_object() + if obj.type_enum == ActivityTypes.FOLLOW: + return [obj.get_object().id] + else: + return [obj.get_object().get_actor().id] + # TODO(tsileo): handle like and announce + raise Exception('TODO') + + def _process_from_inbox(self) -> None: + obj = self.get_object() + DB.inbox.update_one({'remote_id': obj.id}, {'$set': {'meta.undo': True}}) + + try: + obj._undo_inbox() + except NotImplementedError: + pass + + def _post_to_outbox(self, obj_id: str, activity: ObjectType, recipients: List[str]) -> None: + obj = self.get_object() + DB.outbox.update_one({'remote_id': obj.id}, {'$set': {'meta.undo': True}}) + + try: + obj._undo_outbox() + except NotImplementedError: + pass + +class Like(BaseActivity): + ACTIVITY_TYPE = ActivityTypes.LIKE + ALLOWED_OBJECT_TYPES = [ActivityTypes.NOTE] + + def _recipients(self) -> List[str]: + return [self.get_object().get_actor().id] + + def _process_from_inbox(self): + obj = self.get_object() + # Update the meta counter if the object is published by the server + DB.outbox.update_one({'activity.object.id': obj.id}, {'$inc': {'meta.count_like': 1}}) + + def _undo_inbox(self) -> None: + obj = self.get_object() + # Update the meta counter if the object is published by the server + DB.outbox.update_one({'activity.object.id': obj.id}, {'$inc': {'meta.count_like': -1}}) + + def _post_to_outbox(self, obj_id: str, activity: ObjectType, recipients: List[str]): + obj = self.get_object() + # Unlikely, but an actor can like it's own post + DB.outbox.update_one({'activity.object.id': obj.id}, {'$inc': {'meta.count_like': 1}}) + + DB.inbox.update_one({'activity.object.id': obj.id}, {'$set': {'meta.liked': obj_id}}) + + def _undo_outbox(self) -> None: + obj = self.get_object() + # Unlikely, but an actor can like it's own post + DB.outbox.update_one({'activity.object.id': obj.id}, {'$inc': {'meta.count_like': -1}}) + + DB.inbox.update_one({'activity.object.id': obj.id}, {'$set': {'meta.liked': False}}) + + def build_undo(self) -> BaseActivity: + return Undo(object=self.to_dict(embed=True)) + + +class Announce(BaseActivity): + ACTIVITY_TYPE = ActivityTypes.ANNOUNCE + ALLOWED_OBJECT_TYPES = [ActivityTypes.NOTE] + + def _recipients(self) -> List[str]: + recipients = [] + + for field in ['to', 'cc']: + if field in self._data: + recipients.extend(_to_list(self._data[field])) + + return recipients + + def _process_from_inbox(self) -> None: + if isinstance(self._data['object'], str) and not self._data['object'].startswith('http'): + # TODO(tsileo): actually drop it without storing it and better logging, also move the check somewhere else + print(f'received an Annouce referencing an OStatus notice ({self._data["object"]}), dropping the message') + return + # Save/cache the object, and make it part of the stream so we can fetch it + if isinstance(self._data['object'], str): + raw_obj = OBJECT_SERVICE.get(self._data['object'], reload_cache=True, part_of_stream=True, announce_published=self._data['published']) + obj = parse_activity(raw_obj) + else: + obj = self.get_object() + DB.outbox.update_one({'activity.object.id': obj.id}, {'$inc': {'meta.count_boost': 1}}) + + def _undo_inbox(self) -> None: + obj = self.get_object() + DB.inbox.update_one({'remote_id': obj.id}, {'$set': {'meta.undo': True}}) + DB.outbox.update_one({'activity.object.id': obj.id}, {'$inc': {'meta.count_boost': -1}}) + + def _post_to_outbox(self, obj_id: str, activity: ObjectType, recipients: List[str]) -> None: + if isinstance(self._data['object'], str): + # Put the object in the cache + OBJECT_SERVICE.get(self._data['object'], reload_cache=True, part_of_stream=True, announce_published=self._data['published']) + + obj = self.get_object() + DB.inbox.update_one({'activity.object.id': obj.id}, {'$set': {'meta.boosted': obj_id}}) + + def _undo_outbox(self) -> None: + obj = self.get_object() + DB.inbox.update_one({'activity.object.id': obj.id}, {'$set': {'meta.boosted': False}}) + + def build_undo(self) -> BaseActivity: + return Undo(object=self.to_dict(embed=True)) + + +class Delete(BaseActivity): + ACTIVITY_TYPE = ActivityTypes.DELETE + ALLOWED_OBJECT_TYPES = [ActivityTypes.NOTE, ActivityTypes.TOMBSTONE] + + def _recipients(self) -> List[str]: + return self.get_object().recipients() + + def _process_from_inbox(self): + DB.inbox.update_one({'activity.object.id': self.get_object().id}, {'$set': {'meta.deleted': True}}) + # TODO(tsileo): also delete copies stored in parents' `meta.replies` + + def _post_to_outbox(self, obj_id, activity, recipients): + DB.outbox.update_one({'activity.object.id': self.get_object().id}, {'$set': {'meta.deleted': True}}) + + +class Update(BaseActivity): + ACTIVITY_TYPE = ActivityTypes.UPDATE + ALLOWED_OBJECT_TYPES = [ActivityTypes.NOTE, ActivityTypes.PERSON] + + # TODO(tsileo): ensure the actor updating is the same as the orinial activity + # (ensuring that the Update and its object are of same origin) + + def _process_from_inbox(self): + obj = self.get_object() + if obj.type_enum == ActivityTypes.NOTE: + DB.inbox.update_one({'activity.object.id': obj.id}, {'$set': {'activity.object': obj.to_dict()}}) + return + + # If the object is a Person, it means the profile was updated, we just refresh our local cache + ACTOR_SERVICE.get(obj.id, reload_cache=True) + + def _post_to_outbox(self, obj_id, activity, recipients): + obj = self.get_object() + + update_prefix = 'activity.object.' + update = {'$set': dict(), '$unset': dict()} + update['$set'][f'{update_prefix}updated'] = datetime.utcnow().replace(microsecond=0).isoformat() + 'Z' + for k, v in obj._data.items(): + if k in ['id', 'type']: + continue + if v is None: + update['$unset'][f'{update_prefix}{k}'] = '' + else: + update['$set'][f'{update_prefix}{k}'] = v + + if len(update['$unset']) == 0: + del(update['$unset']) + + DB.outbox.update_one({'remote_id': obj.id.replace('/activity', '')}, update) + # FIXME(tsileo): should send an Update (but not a partial one, to all the note's recipients + # (create a new Update with the result of the update, and send it without saving it?) + + +class Create(BaseActivity): + ACTIVITY_TYPE = ActivityTypes.CREATE + ALLOWED_OBJECT_TYPES = [ActivityTypes.NOTE] + + def _set_id(self, uri, obj_id): + self._data['object']['id'] = uri + '/activity' + self._data['object']['url'] = ID + '/' + self.get_object().type.lower() + '/' + obj_id + + def _init(self, **kwargs): + obj = self.get_object() + if not obj.attributedTo: + self._data['object']['attributedTo'] = self.get_actor().id + if not obj.published: + if self.published: + self._data['object']['published'] = self.published + else: + now = datetime.utcnow().replace(microsecond=0).isoformat() + 'Z' + self._data['published'] = now + self._data['object']['published'] = now + + def _recipients(self) -> List[str]: + # TODO(tsileo): audience support? + recipients = [] + for field in ['to', 'cc', 'bto', 'bcc']: + if field in self._data: + recipients.extend(_to_list(self._data[field])) + + recipients.extend(self.get_object()._recipients()) + + return recipients + + def _process_from_inbox(self): + obj = self.get_object() + + tasks.fetch_og.delay('INBOX', self.id) + + in_reply_to = obj.inReplyTo + if in_reply_to: + parent = DB.inbox.find_one({'activity.type': 'Create', 'activity.object.id': in_reply_to}) + if not parent: + DB.outbox.update_one( + {'activity.object.id': in_reply_to}, + {'$inc': {'meta.count_reply': 1}}, + ) + return + + # If the note is a "reply of a reply" update the parent message + # TODO(tsileo): review this code + while parent: + DB.inbox.update_one({'_id': parent['_id']}, {'$push': {'meta.replies': self.to_dict()}}) + in_reply_to = parent.get('activity', {}).get('object', {}).get('inReplyTo') + if in_reply_to: + parent = DB.inbox.find_one({'activity.type': 'Create', 'activity.object.id': in_reply_to}) + if parent is None: + # The reply is a note from the outbox + data = DB.outbox.update_one( + {'activity.object.id': in_reply_to}, + {'$inc': {'meta.count_reply': 1}}, + ) + else: + parent = None + + +class Tombstone(BaseActivity): + ACTIVITY_TYPE = ActivityTypes.TOMBSTONE + + +class Note(BaseActivity): + ACTIVITY_TYPE = ActivityTypes.NOTE + + def _init(self, **kwargs): + print(self._data) + # Remove the `actor` field as `attributedTo` is used for `Note` instead + if 'actor' in self._data: + del(self._data['actor']) + # FIXME(tsileo): use kwarg + # TODO(tsileo): support mention tag + # TODO(tisleo): implement the tag endpoint + if 'sensitive' not in kwargs: + self._data['sensitive'] = False + + # FIXME(tsileo): add the tag in CC + # for t in kwargs.get('tag', []): + # if t['type'] == 'Mention': + # cc -> c['href'] + + def _recipients(self) -> List[str]: + # TODO(tsileo): audience support? + recipients = [] # type: List[str] + + # If the note is public, we publish it to the defined "public instances" + if AS_PUBLIC in self._data.get('to', []): + recipients.extend(PUBLIC_INSTANCES) + print('publishing to public instances') + print(recipients) + + for field in ['to', 'cc', 'bto', 'bcc']: + if field in self._data: + recipients.extend(_to_list(self._data[field])) + + return recipients + + def build_create(self) -> BaseActivity: + """Wraps an activity in a Create activity.""" + create_payload = { + 'object': self.to_dict(embed=True), + 'actor': self.attributedTo or ME, + } + for field in ['published', 'to', 'bto', 'cc', 'bcc', 'audience']: + if field in self._data: + create_payload[field] = self._data[field] + + return Create(**create_payload) + + def build_like(self) -> BaseActivity: + return Like(object=self.id) + + def build_announce(self) -> BaseActivity: + return Announce( + object=self.id, + to=[AS_PUBLIC], + cc=[ID+'/followers', self.attributedTo], + published=datetime.utcnow().replace(microsecond=0).isoformat() + 'Z', + ) + +_ACTIVITY_TYPE_TO_CLS = { + ActivityTypes.IMAGE: Image, + ActivityTypes.PERSON: Person, + ActivityTypes.FOLLOW: Follow, + ActivityTypes.ACCEPT: Accept, + ActivityTypes.UNDO: Undo, + ActivityTypes.LIKE: Like, + ActivityTypes.ANNOUNCE: Announce, + ActivityTypes.UPDATE: Update, + ActivityTypes.DELETE: Delete, + ActivityTypes.CREATE: Create, + ActivityTypes.NOTE: Note, + ActivityTypes.BLOCK: Block, + ActivityTypes.COLLECTION: Collection, + ActivityTypes.TOMBSTONE: Tombstone, +} + +def parse_activity(payload: ObjectType) -> BaseActivity: + t = ActivityTypes(payload['type']) + if t not in _ACTIVITY_TYPE_TO_CLS: + raise ValueError('unsupported activity type') + + return _ACTIVITY_TYPE_TO_CLS[t](**payload) + + +def gen_feed(): + fg = FeedGenerator() + fg.id(f'{ID}') + fg.title(f'{USERNAME} notes') + fg.author( {'name': USERNAME,'email':'t@a4.io'} ) + fg.link(href=ID, rel='alternate') + fg.description(f'{USERNAME} notes') + fg.logo(ME.get('icon', {}).get('url')) + #fg.link( href='http://larskiesow.de/test.atom', rel='self' ) + fg.language('en') + for item in DB.outbox.find({'type': 'Create'}, limit=50): + fe = fg.add_entry() + fe.id(item['activity']['object'].get('url')) + fe.link(href=item['activity']['object'].get('url')) + fe.title(item['activity']['object']['content']) + fe.description(item['activity']['object']['content']) + return fg + + +def json_feed(path: str) -> Dict[str, Any]: + """JSON Feed (https://jsonfeed.org/) document.""" + data = [] + for item in DB.outbox.find({'type': 'Create'}, limit=50): + data.append({ + "id": item["id"], + "url": item['activity']['object'].get('url'), + "content_html": item['activity']['object']['content'], + "content_text": html2text(item['activity']['object']['content']), + "date_published": item['activity']['object'].get('published'), + }) + return { + "version": "https://jsonfeed.org/version/1", + "user_comment": "This is a microblog feed. You can add this to your feed reader using the following URL: " + ID + path, + "title": USERNAME, + "home_page_url": ID, + "feed_url": ID + path, + "author": { + "name": USERNAME, + "url": ID, + "avatar": ME.get('icon', {}).get('url'), + }, + "items": data, + } + + +def build_inbox_json_feed(path: str, request_cursor: Optional[str] = None) -> Dict[str, Any]: + data = [] + cursor = None + + q = {'type': 'Create'} # type: Dict[str, Any] + if request_cursor: + q['_id'] = {'$lt': request_cursor} + + for item in DB.inbox.find(q, limit=50).sort('_id', -1): + actor = ACTOR_SERVICE.get(item['activity']['actor']) + data.append({ + "id": item["activity"]["id"], + "url": item['activity']['object'].get('url'), + "content_html": item['activity']['object']['content'], + "content_text": html2text(item['activity']['object']['content']), + "date_published": item['activity']['object'].get('published'), + "author": { + "name": actor.get('name', actor.get('preferredUsername')), + "url": actor.get('url'), + 'avatar': actor.get('icon', {}).get('url'), + }, + }) + cursor = str(item['_id']) + + resp = { + "version": "https://jsonfeed.org/version/1", + "title": f'{USERNAME}\'s stream', + "home_page_url": ID, + "feed_url": ID + path, + "items": data, + } + if cursor and len(data) == 50: + resp['next_url'] = ID + path + '?cursor=' + cursor + + return resp + + +def parse_collection(payload: Optional[Dict[str, Any]] = None, url: Optional[str] = None) -> List[str]: + """Resolve/fetch a `Collection`/`OrderedCollection`.""" + # Resolve internal collections via MongoDB directly + if url == ID + '/followers': + return [doc['remote_actor'] for doc in DB.followers.find()] + elif url == ID + '/following': + return [doc['remote_actor'] for doc in DB.following.find()] + + # Go through all the pages + out = [] # type: List[str] + if url: + resp = requests.get(url, headers={'Accept': 'application/activity+json'}) + resp.raise_for_status() + payload = resp.json() + + if not payload: + raise ValueError('must at least prove a payload or an URL') + + if payload['type'] in ['Collection', 'OrderedCollection']: + if 'orderedItems' in payload: + return payload['orderedItems'] + if 'items' in payload: + return payload['items'] + if 'first' in payload: + if 'orderedItems' in payload['first']: + out.extend(payload['first']['orderedItems']) + if 'items' in payload['first']: + out.extend(payload['first']['items']) + n = payload['first'].get('next') + if n: + out.extend(parse_collection(url=n)) + return out + + while payload: + if payload['type'] in ['CollectionPage', 'OrderedCollectionPage']: + if 'orderedItems' in payload: + out.extend(payload['orderedItems']) + if 'items' in payload: + out.extend(payload['items']) + n = payload.get('next') + if n is None: + break + resp = requests.get(n, headers={'Accept': 'application/activity+json'}) + resp.raise_for_status() + payload = resp.json() + else: + raise Exception('unexpected activity type {}'.format(payload['type'])) + + return out + + +def build_ordered_collection(col, q=None, cursor=None, map_func=None, limit=50, col_name=None): + col_name = col_name or col.name + if q is None: + q = {} + + if cursor: + q['_id'] = {'$lt': ObjectId(cursor)} + data = list(col.find(q, limit=limit).sort('_id', -1)) + + if not data: + return { + 'id': BASE_URL + '/' + col_name, + 'totalItems': 0, + 'type': 'OrderedCollection', + 'orederedItems': [], + } + + start_cursor = str(data[0]['_id']) + next_page_cursor = str(data[-1]['_id']) + total_items = col.find(q).count() + + data = [_remove_id(doc) for doc in data] + if map_func: + data = [map_func(doc) for doc in data] + + # No cursor, this is the first page and we return an OrderedCollection + if not cursor: + resp = { + '@context': CTX_AS, + 'first': { + 'id': BASE_URL + '/' + col_name + '?cursor=' + start_cursor, + 'orderedItems': data, + 'partOf': BASE_URL + '/' + col_name, + 'totalItems': total_items, + 'type': 'OrderedCollectionPage' + }, + 'id': BASE_URL + '/' + col_name, + 'totalItems': total_items, + 'type': 'OrderedCollection' + } + + if len(data) == limit: + resp['first']['next'] = BASE_URL + '/' + col_name + '?cursor=' + next_page_cursor + + return resp + + # If there's a cursor, then we return an OrderedCollectionPage + resp = { + '@context': CTX_AS, + 'type': 'OrderedCollectionPage', + 'id': BASE_URL + '/' + col_name + '?cursor=' + start_cursor, + 'totalItems': total_items, + 'partOf': BASE_URL + '/' + col_name, + 'orderedItems': data, + } + if len(data) == limit: + resp['next'] = BASE_URL + '/' + col_name + '?cursor=' + next_page_cursor + + return resp diff --git a/app.py b/app.py new file mode 100644 index 0000000..034f1ca --- /dev/null +++ b/app.py @@ -0,0 +1,1014 @@ +import binascii +import hashlib +import json +import urllib +import os +import mimetypes +import logging +from functools import wraps +from datetime import datetime + +import timeago +import bleach +import mf2py +import pymongo +import piexif +from bson.objectid import ObjectId +from flask import Flask +from flask import abort +from flask import request +from flask import redirect +from flask import Response +from flask import render_template +from flask import session +from flask import url_for +from html2text import html2text +from itsdangerous import JSONWebSignatureSerializer +from itsdangerous import BadSignature +from passlib.hash import bcrypt +from u2flib_server import u2f +from urllib.parse import urlparse, urlencode +from werkzeug.utils import secure_filename + +import activitypub +import config +from activitypub import ActivityTypes +from activitypub import clean_activity +from activitypub import parse_markdown +from config import KEY +from config import DB +from config import ME +from config import ID +from config import DOMAIN +from config import USERNAME +from config import BASE_URL +from config import ACTOR_SERVICE +from config import OBJECT_SERVICE +from config import PASS +from config import HEADERS +from utils.httpsig import HTTPSigAuth, verify_request +from utils.key import get_secret_key +from utils.webfinger import get_remote_follow_template +from utils.webfinger import get_actor_url + + +app = Flask(__name__) +app.secret_key = get_secret_key('flask') + +JWT_SECRET = get_secret_key('jwt') +JWT = JSONWebSignatureSerializer(JWT_SECRET) + +with open('config/jwt_token', 'wb+') as f: + f.write(JWT.dumps({'type': 'admin_token'})) + +SIG_AUTH = HTTPSigAuth(ID+'#main-key', KEY.privkey) + + +def verify_pass(pwd): + return bcrypt.verify(pwd, PASS) + +@app.context_processor +def inject_config(): + return dict(config=config, logged_in=session.get('logged_in', False)) + +@app.after_request +def set_x_powered_by(response): + response.headers['X-Powered-By'] = 'microblog.pub' + return response + +# HTML/templates helper +ALLOWED_TAGS = [ + 'a', + 'abbr', + 'acronym', + 'b', + 'blockquote', + 'code', + 'pre', + 'em', + 'i', + 'li', + 'ol', + 'strong', + 'ul', + 'span', + 'div', + 'p', + 'h1', + 'h2', + 'h3', + 'h4', + 'h5', + 'h6', +] + + +def clean_html(html): + return bleach.clean(html, tags=ALLOWED_TAGS) + + +@app.template_filter() +def quote_plus(t): + return urllib.parse.quote_plus(t) + + +@app.template_filter() +def clean(html): + return clean_html(html) + + +@app.template_filter() +def html2plaintext(body): + return html2text(body) + + +@app.template_filter() +def domain(url): + return urlparse(url).netloc + + +@app.template_filter() +def get_actor(url): + if not url: + return None + print(f'GET_ACTOR {url}') + return ACTOR_SERVICE.get(url) + +@app.template_filter() +def format_time(val): + if val: + return datetime.strftime(datetime.strptime(val, '%Y-%m-%dT%H:%M:%SZ'), '%B %d, %Y, %H:%M %p') + return val + + +@app.template_filter() +def format_timeago(val): + if val: + try: + return timeago.format(datetime.strptime(val, '%Y-%m-%dT%H:%M:%SZ'), datetime.utcnow()) + except: + return timeago.format(datetime.strptime(val, '%Y-%m-%dT%H:%M:%S.%fZ'), datetime.utcnow()) + + return val + +def _is_img(filename): + filename = filename.lower() + if (filename.endswith('.png') or filename.endswith('.jpg') or filename.endswith('.jpeg') or + filename.endswith('.gif') or filename.endswith('.svg')): + return True + return False + +@app.template_filter() +def not_only_imgs(attachment): + for a in attachment: + if not _is_img(a['url']): + return True + return False + +@app.template_filter() +def is_img(filename): + return _is_img(filename) + + +def login_required(f): + @wraps(f) + def decorated_function(*args, **kwargs): + if not session.get('logged_in'): + return redirect(url_for('login', next=request.url)) + return f(*args, **kwargs) + return decorated_function + + +def api_required(f): + @wraps(f) + def decorated_function(*args, **kwargs): + if session.get('logged_in'): + return f(*args, **kwargs) + + # Token verification + token = request.headers.get('Authorization', '').replace('Bearer ', '') + if not token: + token = request.form.get('access_token', '') + + try: + payload = JWT.loads(token) + # TODO(tsileo): log payload + except BadSignature: + abort(401) + return f(*args, **kwargs) + return decorated_function + + +def jsonify(**data): + if '@context' not in data: + data['@context'] = config.CTX_AS + return Response( + response=json.dumps(data), + headers={'Content-Type': 'application/json' if app.debug else 'application/activity+json'}, + ) + + +def is_api_request(): + h = request.headers.get('Accept') + if h is None: + return False + h = h.split(',')[0] + if h in HEADERS or h == 'application/json': + return True + return False + +# App routes + +####### +# Login + +@app.route('/logout') +@login_required +def logout(): + session['logged_in'] = False + return redirect('/') + + +@app.route('/login', methods=['POST', 'GET']) +def login(): + devices = [doc['device'] for doc in DB.u2f.find()] + u2f_enabled = True if devices else False + if request.method == 'POST': + pwd = request.form.get('pass') + if pwd and verify_pass(pwd): + if devices: + resp = json.loads(request.form.get('resp')) + print(resp) + try: + u2f.complete_authentication(session['challenge'], resp) + except ValueError as exc: + print('failed', exc) + abort(401) + return + finally: + session['challenge'] = None + + session['logged_in'] = True + return redirect(request.args.get('redirect') or '/admin') + else: + abort(401) + + payload = None + if devices: + payload = u2f.begin_authentication(ID, devices) + session['challenge'] = payload + + return render_template( + 'login.html', + u2f_enabled=u2f_enabled, + me=ME, + payload=payload, + ) + + +@app.route('/remote_follow', methods=['GET', 'POST']) +@login_required +def remote_follow(): + if request.method == 'GET': + return render_template('remote_follow.html') + + return redirect(get_remote_follow_template('@'+request.form.get('profile')).format(uri=ID)) + + +@app.route('/authorize_follow', methods=['GET', 'POST']) +@login_required +def authorize_follow(): + if request.method == 'GET': + return render_template('authorize_remote_follow.html', profile=request.args.get('profile')) + + actor = get_actor_url(request.form.get('profile')) + if not actor: + abort(500) + if DB.following.find({'remote_actor': actor}).count() > 0: + return redirect('/following') + + follow = activitypub.Follow(object=actor) + follow.post_to_outbox() + return redirect('/following') + + +@app.route('/u2f/register', methods=['GET', 'POST']) +@login_required +def u2f_register(): + # TODO(tsileo): ensure no duplicates + if request.method == 'GET': + payload = u2f.begin_registration(ID) + session['challenge'] = payload + return render_template( + 'u2f.html', + payload=payload, + ) + else: + resp = json.loads(request.form.get('resp')) + device, device_cert = u2f.complete_registration(session['challenge'], resp) + session['challenge'] = None + DB.u2f.insert_one({'device': device, 'cert': device_cert}) + return '' + +####### +# Activity pub routes + +@app.route('/') +def index(): + print(request.headers.get('Accept')) + if is_api_request(): + return jsonify(**ME) + + # FIXME(tsileo): implements pagination, also for the followers/following page + limit = 50 + q = { + 'type': 'Create', + 'activity.object.type': 'Note', + 'meta.deleted': False, + } + c = request.args.get('cursor') + if c: + q['_id'] = {'$lt': ObjectId(c)} + + outbox_data = list(DB.outbox.find({'$or': [q, {'type': 'Announce', 'meta.undo': False}]}, limit=limit).sort('_id', -1)) + cursor = None + if outbox_data and len(outbox_data) == limit: + cursor = str(outbox_data[-1]['_id']) + + for data in outbox_data: + if data['type'] == 'Announce': + print(data) + if data['activity']['object'].startswith('http'): + data['ref'] = {'activity': {'object': OBJECT_SERVICE.get(data['activity']['object'])}, 'meta': {}} + + + return render_template( + 'index.html', + me=ME, + notes=DB.inbox.find({'type': 'Create', 'activity.object.type': 'Note', 'meta.deleted': False}).count(), + followers=DB.followers.count(), + following=DB.following.count(), + outbox_data=outbox_data, + cursor=cursor, + ) + + +@app.route('/note/') +def note_by_id(note_id): + data = DB.outbox.find_one({'id': note_id, 'meta.deleted': False}) + if not data: + return Response(status=404) + + replies = list(DB.inbox.find({ + 'type': 'Create', + 'activity.object.inReplyTo': data['activity']['object']['id'], + 'meta.deleted': False, + })) + + # Check for "replies of replies" + others = [] + for rep in replies: + for rep_reply in rep.get('meta', {}).get('replies', []): + others.append(rep_reply['id']) + + if others: + # Fetch the latest versions of the "replies of replies" + replies2 = list(DB.inbox.find({ + 'activity.id': {'$in': others}, + })) + + replies.extend(replies2) + + replies2 = list(DB.outbox.find({ + 'activity.id': {'$in': others}, + })) + + replies.extend(replies2) + + + # Re-sort everything + replies = sorted(replies, key=lambda o: o['activity']['object']['published']) + + + return render_template('note.html', me=ME, note=data, replies=replies) + + +@app.route('/.well-known/webfinger') +def webfinger(): + """Enable WebFinger support, required for Mastodon interopability.""" + resource = request.args.get('resource') + if resource not in ["acct:"+USERNAME+"@"+DOMAIN, ID]: + abort(404) + + out = { + "subject": "acct:"+USERNAME+"@"+DOMAIN, + "aliases": [ID], + "links": [ + {"rel": "http://webfinger.net/rel/profile-page", "type": "text/html", "href": BASE_URL}, + {"rel": "self", "type": "application/activity+json", "href": ID}, + {"rel":"http://ostatus.org/schema/1.0/subscribe","template": BASE_URL+"/authorize_follow?profile={uri}"}, + ], + } + + return Response( + response=json.dumps(out), + headers={'Content-Type': 'application/jrd+json; charset=utf-8' if not app.debug else 'application/json'}, + ) + +@app.route('/outbox', methods=['GET', 'POST']) +def outbox(): + if request.method == 'GET': + if not is_api_request(): + abort(404) + # TODO(tsileo): filter the outbox if not authenticated + # FIXME(tsileo): filter deleted, add query support for build_ordered_collection + q = { + 'meta.deleted': False, + 'type': {'$in': [ActivityTypes.CREATE.value, ActivityTypes.ANNOUNCE.value]}, + } + return jsonify(**activitypub.build_ordered_collection( + DB.outbox, + q=q, + cursor=request.args.get('cursor'), + map_func=lambda doc: clean_activity(doc['activity']), + )) + + # Handle POST request + # FIXME(tsileo): check auth + data = request.get_json(force=True) + print(data) + activity = activitypub.parse_activity(data) + + if activity.type_enum == ActivityTypes.NOTE: + activity = activity.build_create() + + activity.post_to_outbox() + + return Response(status=201, headers={'Location': activity.id}) + + +@app.route('/outbox/') +def outbox_detail(item_id): + doc = DB.outbox.find_one({'id': item_id, 'meta.deleted': False}) + return jsonify(**clean_activity(doc['activity'])) + + +@app.route('/outbox//activity') +def outbox_activity(item_id): + data = DB.outbox.find_one({'id': item_id, 'meta.deleted': False}) + if not data: + abort(404) + obj = data['activity'] + if obj['type'] != ActivityTypes.CREATE.value: + abort(404) + return jsonify(**clean_activity(obj['object'])) + +@app.route('/admin', methods=['GET']) +@login_required +def admin(): + q = { + 'meta.deleted': False, + 'meta.undo': False, + 'type': ActivityTypes.LIKE.value, + } + col_liked = DB.outbox.count(q) + + return render_template( + 'admin.html', + instances=list(DB.instances.find()), + inbox_size=DB.inbox.count(), + outbox_size=DB.outbox.count(), + object_cache_size=DB.objects_cache.count(), + actor_cache_size=DB.actors_cache.count(), + col_liked=col_liked, + col_followers=DB.followers.count(), + col_following=DB.following.count(), + ) + + +@app.route('/new', methods=['GET', 'POST']) +@login_required +def new(): + if request.method == 'POST': + reply = None + if request.form.get('reply'): + reply = activitypub.parse_activity(OBJECT_SERVICE.get(request.form.get('reply'))) + source = request.form.get('content') + content, tags = parse_markdown(source) + to = request.form.get('to') + cc = [ID+'/followers'] + if reply: + cc.append(reply.attributedTo) + for tag in tags: + if tag['type'] == 'Mention': + cc.append(tag['href']) + + note = activitypub.Note( + cc=cc, + to=[to if to else config.AS_PUBLIC], + content=content, # TODO(tsileo): handle markdown + tag=tags, + source={'mediaType': 'text/markdown', 'content': source}, + inReplyTo=reply.id, + ) + create = note.build_create() + print(create.to_dict()) + create.post_to_outbox() + + reply_id = None + content = '' + if request.args.get('reply'): + reply = activitypub.parse_activity(OBJECT_SERVICE.get(request.args.get('reply'))) + reply_id = reply.id + actor = reply.get_actor() + domain = urlparse(actor.id).netloc + content = f'@{actor.preferredUsername}@{domain} ' + + return render_template('new.html', reply=reply_id, content=content) + + +@app.route('/notifications') +@login_required +def notifications(): + # FIXME(tsileo): implements pagination, also for the followers/following page + limit = 50 + q = { + 'type': 'Create', + 'activity.object.tag.type': 'Mention', + 'activity.object.tag.name': f'@{USERNAME}@{DOMAIN}', + 'meta.deleted': False, + } + # TODO(tsileo): also include replies via regex on Create replyTo + q = {'$or': [q, {'type': 'Follow'}, {'type': 'Accept'}, {'type': 'Undo', 'activity.object.type': 'Follow'}, + {'type': 'Announce', 'activity.object': {'$regex': f'^{BASE_URL}'}}, + {'type': 'Create', 'activity.object.inReplyTo': {'$regex': f'^{BASE_URL}'}}, + ]} + print(q) + c = request.args.get('cursor') + if c: + q['_id'] = {'$lt': ObjectId(c)} + + outbox_data = list(DB.inbox.find(q, limit=limit).sort('_id', -1)) + cursor = None + if outbox_data and len(outbox_data) == limit: + cursor = str(outbox_data[-1]['_id']) + + # TODO(tsileo): fix the annonce handling, copy it from /stream + #for data in outbox_data: + # if data['type'] == 'Announce': + # print(data) + # if data['activity']['object'].startswith('http') and data['activity']['object'] in objcache: + # data['ref'] = {'activity': {'object': objcache[data['activity']['object']]}, 'meta': {}} + # out.append(data) + # else: + # out.append(data) + + return render_template( + 'stream.html', + inbox_data=outbox_data, + cursor=cursor, + ) + +@app.route('/ui/boost') +@login_required +def ui_boost(): + oid = request.args.get('id') + obj = activitypub.parse_activity(OBJECT_SERVICE.get(oid)) + announce = obj.build_announce() + announce.post_to_outbox() + return redirect(request.args.get('redirect')) + +@app.route('/ui/like') +@login_required +def ui_like(): + oid = request.args.get('id') + obj = activitypub.parse_activity(OBJECT_SERVICE.get(oid)) + like = obj.build_like() + like.post_to_outbox() + return redirect(request.args.get('redirect')) + +@app.route('/ui/undo') +@login_required +def ui_undo(): + oid = request.args.get('id') + doc =DB.outbox.find_one({'id': oid}) + if doc: + obj = activitypub.parse_activity(doc.get('activity')) + undo = obj.build_undo() + undo.post_to_outbox() + return redirect(request.args.get('redirect')) + +@app.route('/stream') +@login_required +def stream(): + # FIXME(tsileo): implements pagination, also for the followers/following page + limit = 100 + q = { + 'type': 'Create', + 'activity.object.type': 'Note', + 'activity.object.inReplyTo': None, + 'meta.deleted': False, + } + c = request.args.get('cursor') + if c: + q['_id'] = {'$lt': ObjectId(c)} + + outbox_data = list(DB.inbox.find( + { + '$or': [ + q, + { + 'type': 'Announce', + }, + ] + }, limit=limit).sort('activity.published', -1)) + cursor = None + if outbox_data and len(outbox_data) == limit: + cursor = str(outbox_data[-1]['_id']) + + out = [] + objcache = {} + cached = list(DB.objects_cache.find({'meta.part_of_stream': True}, limit=limit*3).sort('meta.announce_published', -1)) + for c in cached: + objcache[c['object_id']] = c['cached_object'] + for data in outbox_data: + if data['type'] == 'Announce': + if data['activity']['object'].startswith('http') and data['activity']['object'] in objcache: + data['ref'] = {'activity': {'object': objcache[data['activity']['object']]}, 'meta': {}} + out.append(data) + else: + print('OMG', data) + else: + out.append(data) + return render_template( + 'stream.html', + inbox_data=out, + cursor=cursor, + ) + + +@app.route('/inbox', methods=['GET', 'POST']) +def inbox(): + if request.method == 'GET': + if not is_api_request(): + abort(404) + # TODO(tsileo): handle auth and only return 404 if unauthenticated + # abort(404) + return jsonify(**activitypub.build_ordered_collection( + DB.inbox, + q={'meta.deleted': False}, + cursor=request.args.get('cursor'), + map_func=lambda doc: doc['activity'], + )) + data = request.get_json(force=True) + # FIXME(tsileo): ensure verify_request() == True + print(data) + try: + print(verify_request(ACTOR_SERVICE)) + except Exception: + print('failed to verify request') + + activity = activitypub.parse_activity(data) + print(activity) + activity.process_from_inbox() + + return Response( + status=201, + ) + + +@app.route('/api/upload', methods=['POST']) +@api_required +def api_upload(): + file = request.files['file'] + rfilename = secure_filename(file.filename) + prefix = hashlib.sha256(os.urandom(32)).hexdigest()[:6] + mtype = mimetypes.guess_type(rfilename)[0] + filename = f'{prefix}_{rfilename}' + file.save(os.path.join('static', 'media', filename)) + + # Remove EXIF metadata + if filename.lower().endswith('.jpg') or filename.lower().endswith('.jpeg'): + piexif.remove(os.path.join('static', 'media', filename)) + + print('upload OK') + print(filename) + attachment = [ + {'mediaType': mtype, + 'name': rfilename, + 'type': 'Document', + 'url': BASE_URL + f'/static/media/{filename}' + }, + ] + print(attachment) + content = request.args.get('content') + to = request.args.get('to') + note = activitypub.Note( + cc=[ID+'/followers'], + to=[to if to else config.AS_PUBLIC], + content=content, # TODO(tsileo): handle markdown + attachment=attachment, + ) + print('post_note_init') + print(note) + create = note.build_create() + print(create) + print(create.to_dict()) + create.post_to_outbox() + print('posted') + + return Response( + status=201, + response='OK', + ) + + +@app.route('/api/new_note') +@api_required +def api_new_note(): + source = request.args.get('content') + content, tags = parse_markdown(source) + to = request.args.get('to') + cc = [ID+'/followers'] + for tag in tags: + if tag['type'] == 'Mention': + cc.append(tag['href']) + + note = activitypub.Note( + cc=cc, + to=[to if to else config.AS_PUBLIC], + content=content, # TODO(tsileo): handle markdown + tag=tags, + source={'mediaType': 'text/markdown', 'content': source}, + ) + create = note.build_create() + create.post_to_outbox() + return Response( + status=201, + response='OK', + ) + +@app.route('/api/stream') +def api_stream(): + return Response( + response=json.dumps(activitypub.build_inbox_json_feed('/api/stream', request.args.get('cursor'))), + headers={'Content-Type': 'application/json'}, + ) + +@app.route('/api/follow') +@api_required +def api_follow(): + actor = request.args.get('actor') + if DB.following.find({'remote_actor': actor}).count() > 0: + return Response(status=201) + + follow = activitypub.Follow(object=actor) + follow.post_to_outbox() + return Response( + status=201, + ) + + +@app.route('/followers') +def followers(): + if is_api_request(): + return jsonify( + **activitypub.build_ordered_collection( + DB.followers, + cursor=request.args.get('cursor'), + map_func=lambda doc: doc['remote_actor'], + ) + ) + + followers = [ACTOR_SERVICE.get(doc['remote_actor']) for doc in DB.followers.find(limit=50)] + return render_template( + 'followers.html', + me=ME, + notes=DB.inbox.find({'object.object.type': 'Note'}).count(), + followers=DB.followers.count(), + following=DB.following.count(), + followers_data=followers, + ) + + +@app.route('/following') +def following(): + if is_api_request(): + return jsonify( + **activitypub.build_ordered_collection( + DB.following, + cursor=request.args.get('cursor'), + map_func=lambda doc: doc['remote_actor'], + ), + ) + + following = [ACTOR_SERVICE.get(doc['remote_actor']) for doc in DB.following.find(limit=50)] + return render_template( + 'following.html', + me=ME, + notes=DB.inbox.find({'object.object.type': 'Note'}).count(), + followers=DB.followers.count(), + following=DB.following.count(), + following_data=following, + ) + + +@app.route('/tags/') +def tags(tag): + if not DB.outbox.count({'activity.object.tag.type': 'Hashtag', 'activity.object.tag.name': '#'+tag}): + abort(404) + if not is_api_request(): + return render_template( + 'tags.html', + tag=tag, + outbox_data=DB.outbox.find({'type': 'Create', 'activity.object.type': 'Note', 'meta.deleted': False, + 'activity.object.tag.type': 'Hashtag', + 'activity.object.tag.name': '#'+tag}), + ) + q = { + 'meta.deleted': False, + 'meta.undo': False, + 'type': ActivityTypes.CREATE.value, + 'activity.object.tag.type': 'Hashtag', + 'activity.object.tag.name': '#'+tag, + } + return jsonify(**activitypub.build_ordered_collection( + DB.outbox, + q=q, + cursor=request.args.get('cursor'), + map_func=lambda doc: doc['activity']['object']['id'], + col_name=f'tags/{tag}', + )) + + +@app.route('/liked') +def liked(): + if not is_api_request(): + abort(404) + q = { + 'meta.deleted': False, + 'meta.undo': False, + 'type': ActivityTypes.LIKE.value, + } + return jsonify(**activitypub.build_ordered_collection( + DB.outbox, + q=q, + cursor=request.args.get('cursor'), + map_func=lambda doc: doc['activity']['object'], + col_name='liked', + )) + +####### +# IndieAuth + + +def build_auth_resp(payload): + if request.headers.get('Accept') == 'application/json': + return Response( + status=200, + headers={'Content-Type': 'application/json'}, + response=json.dumps(payload), + ) + return Response( + status=200, + headers={'Content-Type': 'application/x-www-form-urlencoded'}, + response=urlencode(payload), + ) + + +def _get_prop(props, name, default=None): + if name in props: + items = props.get(name) + if isinstance(items, list): + return items[0] + return items + return default + +def get_client_id_data(url): + data = mf2py.parse(url=url) + for item in data['items']: + if 'h-x-app' in item['type'] or 'h-app' in item['type']: + props = item.get('properties', {}) + print(props) + return dict( + logo=_get_prop(props, 'logo'), + name=_get_prop(props, 'name'), + url=_get_prop(props, 'url'), + ) + return dict( + logo=None, + name=url, + url=url, + ) + + +@app.route('/indieauth/flow', methods=['POST']) +@login_required +def indieauth_flow(): + auth = dict( + scope=' '.join(request.form.getlist('scopes')), + me=request.form.get('me'), + client_id=request.form.get('client_id'), + state=request.form.get('state'), + redirect_uri=request.form.get('redirect_uri'), + response_type=request.form.get('response_type'), + ) + + code = binascii.hexlify(os.urandom(8)).decode('utf-8') + auth.update( + code=code, + verified=False, + ) + print(auth) + if not auth['redirect_uri']: + abort(500) + + DB.indieauth.insert_one(auth) + + # FIXME(tsileo): fetch client ID and validate redirect_uri + red = f'{auth["redirect_uri"]}?code={code}&state={auth["state"]}&me={auth["me"]}' + return redirect(red) + + +@app.route('/indieauth', methods=['GET', 'POST']) +def indieauth_endpoint(): + session['logged_in'] = True + if request.method == 'GET': + if not session.get('logged_in'): + return redirect(url_for('login', next=request.url)) + + me = request.args.get('me') + # FIXME(tsileo): ensure me == ID + client_id = request.args.get('client_id') + redirect_uri = request.args.get('redirect_uri') + state = request.args.get('state', '') + response_type = request.args.get('response_type', 'id') + scope = request.args.get('scope', '').split() + + print('STATE', state) + return render_template( + 'indieauth_flow.html', + client=get_client_id_data(client_id), + scopes=scope, + redirect_uri=redirect_uri, + state=state, + response_type=response_type, + client_id=client_id, + me=me, + ) + + # Auth verification via POST + code = request.form.get('code') + redirect_uri = request.form.get('redirect_uri') + client_id = request.form.get('client_id') + + auth = DB.indieauth.find_one_and_update( + {'code': code, 'redirect_uri': redirect_uri, 'client_id': client_id}, #}, # , 'verified': False}, + {'$set': {'verified': True}}, + sort=[('_id', pymongo.DESCENDING)], + ) + print(auth) + print(code, redirect_uri, client_id) + + if not auth: + abort(403) + return + + me = auth['me'] + state = auth['state'] + scope = ' '.join(auth['scope']) + print('STATE', state) + return build_auth_resp({'me': me, 'state': state, 'scope': scope}) + + +@app.route('/token', methods=['GET', 'POST']) +def token_endpoint(): + if request.method == 'POST': + code = request.form.get('code') + me = request.form.get('me') + redirect_uri = request.form.get('redirect_uri') + client_id = request.form.get('client_id') + + auth = DB.indieauth.find_one({'code': code, 'me': me, 'redirect_uri': redirect_uri, 'client_id': client_id}) + if not auth: + abort(403) + scope = ' '.join(auth['scope']) + payload = dict(me=me, client_id=client_id, scope=scope, ts=datetime.now().timestamp()) + token = JWT.dumps(payload).decode('utf-8') + + return build_auth_resp({'me': me, 'scope': scope, 'access_token': token}) + + # Token verification + token = request.headers.get('Authorization').replace('Bearer ', '') + try: + payload = JWT.loads(token) + except BadSignature: + abort(403) + + # TODO(tsileo): handle expiration + + return build_auth_resp({ + 'me': payload['me'], + 'scope': payload['scope'], + 'client_id': payload['client_id'], + }) diff --git a/config.py b/config.py new file mode 100644 index 0000000..b8ff84f --- /dev/null +++ b/config.py @@ -0,0 +1,83 @@ +import os +import yaml +from pymongo import MongoClient +import requests + +from utils.key import Key +from utils.actor_service import ActorService +from utils.object_service import ObjectService + + +VERSION = '1.0.0' + +CTX_AS = 'https://www.w3.org/ns/activitystreams' +CTX_SECURITY = 'https://w3id.org/security/v1' +AS_PUBLIC = 'https://www.w3.org/ns/activitystreams#Public' +HEADERS = [ + 'application/activity+json', + 'application/ld+json;profile=https://www.w3.org/ns/activitystreams', + 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"', + 'application/ld+json', +] + + +with open('config/me.yml') as f: + conf = yaml.load(f) + + USERNAME = conf['username'] + NAME = conf['name'] + DOMAIN = conf['domain'] + SCHEME = 'https' if conf.get('https', True) else 'http' + BASE_URL = SCHEME + '://' + DOMAIN + ID = BASE_URL + SUMMARY = conf['summary'] + ICON_URL = conf['icon_url'] + PASS = conf['pass'] + PUBLIC_INSTANCES = conf.get('public_instances') + +USER_AGENT = ( + f'{requests.utils.default_user_agent()} ' + f'(microblog.pub/{VERSION}; +{BASE_URL})' +) + +# TODO(tsileo): use 'mongo:27017; +# mongo_client = MongoClient(host=['mongo:27017']) +mongo_client = MongoClient( + host=[os.getenv('MICROBLOGPUB_MONGODB_HOST', 'localhost:27017')], +) + +DB = mongo_client['{}_{}'.format(USERNAME, DOMAIN.replace('.', '_'))] +KEY = Key(USERNAME, DOMAIN, create=True) + +ME = { + "@context": [ + CTX_AS, + CTX_SECURITY, + ], + "type": "Person", + "id": ID, + "following": ID+"/following", + "followers": ID+"/followers", + "liked": ID+"/liked", + "inbox": ID+"/inbox", + "outbox": ID+"/outbox", + "preferredUsername": USERNAME, + "name": NAME, + "summary": SUMMARY, + "endpoints": {}, + "url": ID, + "icon": { + "mediaType": "image/png", + "type": "Image", + "url": ICON_URL, + }, + "publicKey": { + "id": ID+"#main-key", + "owner": ID, + "publicKeyPem": KEY.pubkey_pem, + }, +} +print(ME) + +ACTOR_SERVICE = ActorService(USER_AGENT, DB.actors_cache, ID, ME, DB.instances) +OBJECT_SERVICE = ObjectService(USER_AGENT, DB.objects_cache, DB.inbox, DB.outbox, DB.instances) diff --git a/config/me.sample.yml b/config/me.sample.yml new file mode 100644 index 0000000..56e37b0 --- /dev/null +++ b/config/me.sample.yml @@ -0,0 +1,6 @@ +username: 'username' +name: 'You Name' +icon_url: 'https://you-avatar-url' +domain: 'your-domain.tld' +summary: 'your summary' +https: true diff --git a/data/.gitignore b/data/.gitignore new file mode 100644 index 0000000..d6b7ef3 --- /dev/null +++ b/data/.gitignore @@ -0,0 +1,2 @@ +* +!.gitignore diff --git a/docker-compose-dev.yml b/docker-compose-dev.yml new file mode 100644 index 0000000..0967722 --- /dev/null +++ b/docker-compose-dev.yml @@ -0,0 +1,21 @@ +version: '3' +services: + celery: + build: . + links: + - mongo + - rabbitmq + command: 'celery worker -l info -A tasks' + environment: + - MICROBLOGPUB_AMQP_BORKER=pyamqp://guest@rabbitmq// + - MICROBLOGPUB_MONGODB_HOST=mongo:27017 + mongo: + image: "mongo:latest" + volumes: + - "./data:/data/db" + ports: + - "27017:27017" + rabbitmq: + image: "rabbitmq:latest" + ports: + - "5672:5672" diff --git a/docker-compose.yml b/docker-compose.yml new file mode 100644 index 0000000..50516aa --- /dev/null +++ b/docker-compose.yml @@ -0,0 +1,30 @@ +version: '3' +services: + web: + build: . + ports: + - "5005:5005" + links: + - mongo + - rabbitmq + volumes: + - "./config:/app/config" + - "./static:/app/static" + environment: + - MICROBLOGPUB_AMQP_BORKER=pyamqp://guest@rabbitmq// + - MICROBLOGPUB_MONGODB_HOST=mongo:27017 + celery: + build: . + links: + - mongo + - rabbitmq + command: 'celery worker -l info -A tasks' + environment: + - MICROBLOGPUB_AMQP_BORKER=pyamqp://guest@rabbitmq// + - MICROBLOGPUB_MONGODB_HOST=mongo:27017 + mongo: + image: "mongo:latest" + volumes: + - "./data:/data/db" + rabbitmq: + image: "rabbitmq:latest" diff --git a/requirements.txt b/requirements.txt new file mode 100644 index 0000000..3e770ad --- /dev/null +++ b/requirements.txt @@ -0,0 +1,21 @@ +libsass +gunicorn +piexif +requests +markdown +python-u2flib-server +Flask +Celery +pymongo +pyld +timeago +bleach +pycryptodome +html2text +feedgen +itsdangerous +bcrypt +mf2py +passlib +pyyaml +git+https://github.com/erikriver/opengraph.git diff --git a/sass/base_theme.scss b/sass/base_theme.scss new file mode 100644 index 0000000..8a6fba0 --- /dev/null +++ b/sass/base_theme.scss @@ -0,0 +1,207 @@ +// a4.io dark theme +$background-color: #060606; +$background-light: #222; +$color: #808080; +$color-title-link: #fefefe; +$color-summary: #ddd; +$color-light: #bbb; +$color-menu-background: #222; +$color-note-link: #666; +$primary-color: #f7ca18; + +$background-color: #eee; +$background-light: #ccc; +$color: #111; +$color-title-link: #333; +$color-light: #555; +$color-summary: #111; +$color-note-link: #333; +$color-menu-background: #ddd; +$primary-color: #1d781d; + +.note-container p:first-child { + margin-top: 0; +} +html, body { + height: 100%; +} +body { + background-color: $background-color; + color: $color; + display: flex; + flex-direction: column; +} +.base-container { + flex: 1 0 auto; +} +.footer { + flex-shrink: 0; +} +a, h1, h2, h3, h4, h5, h6 { + color: $color-title-link; +} +a { + text-decoration: none; +} +a:hover { + text-decoration: underline; +} +.gold { + color: $primary-color; +} + +#header { + margin-bottom: 40px; + + .title { + font-size: 1.2em; + padding-right: 15px; + color: $color-title-link; + } + .title:hover { + text-decoration: none; + } + .subtitle-username { + color: $color; + } + .menu { + padding: 20px 0 10px 0; + ul { + display: inline; + list-style-type: none; + padding: 0; + li { + float:left; + padding-right:10px; + margin-bottom:10px; + } + } + a { + padding: 2px 7px; + } + a.selected { + background: $primary-color; + color: $background-color; + border-radius:2px; + } + a:hover { + background: $primary-color; + color: $background-color; + text-decoration: none; + } + } +} +#container { + width: 90%; + max-width: 720px; + margin: 40px auto; +} +#container #notes { + margin-top: 20px; +} +.actor-box { + display: block; + text-decoration: none; + margin-bottom: 40px; + + .actor-icon { + width: 100%; + max-width:120px; + border-radius:2px; + } + h3 { margin: 0; } +} +.note { + display: flex; + margin-bottom: 70px; + .l { + color: $color-note-link; + } + + .h-card { + flex: initial; + width: 50px; + } + + .u-photo { + width: 50px; + border-radius: 2px; + } + .note-wrapper { + flex: 1; + padding-left: 15px; + } + + .bottom-bar { margin-top:10px; } + + .img-attachment { + max-width:100%; + border-radius:2px; + } + + h3 { + font-size: 1.1em; + color: $color-light; + } + + strong { font-weight:600; } + + .note-container { + clear: right; + padding:10px 0; + } +} + +.bar-item { + background: $color-menu-background; + padding: 5px; + color: $color-light; + margin-right:5px; + border-radius:2px; +} + +.bottom-bar .perma-item { + margin-right:5px; +} +.bottom-bar a.bar-item:hover { + text-decoration: none; +} +.footer > div { + width: 90%; + max-width: 720px; + margin: 40px auto; +} +.footer a, .footer a:hover, .footer a:visited { + text-decoration: underline; + color: $color; +} +.summary { + color: $color-summary; + font-size:1.3em; + margin-top:50px; + margin-bottom:70px; +} +.summary a, .summay a:hover { + color: $color-summary; + text-decoration:underline; +} +#followers, #following, #new { + margin-top:50px; +} +#admin { + margin-top:50px; +} +textarea, input { + background: $color-menu-background; + padding: 10px; + color: $color-light; + border: 0px; + border-radius: 2px; +} +input { + padding: 10px; +} +input[type=submit] { + color: $primary-color; + text-transform: uppercase; +} diff --git a/sass/theme.scss b/sass/theme.scss new file mode 100644 index 0000000..6277839 --- /dev/null +++ b/sass/theme.scss @@ -0,0 +1 @@ +@import 'base_theme.scss' diff --git a/setup.cfg b/setup.cfg new file mode 100644 index 0000000..6deafc2 --- /dev/null +++ b/setup.cfg @@ -0,0 +1,2 @@ +[flake8] +max-line-length = 120 diff --git a/static/base.css b/static/base.css new file mode 100644 index 0000000..aeab1f3 --- /dev/null +++ b/static/base.css @@ -0,0 +1,160 @@ +.note-container p:first-child { + margin-top: 0; +} +html, body { + height: 100%; +} +body { + background-color: #060606; + color: #808080; +display: flex; +flex-direction: column; +} +.base-container { + flex: 1 0 auto; +} +.footer { +flex-shrink: 0; +} +a, h1, h2, h3, h4, h5, h6 { + color: #fefefe; +} +a { + text-decoration: none; +} +a:hover { + text-decoration: underline; +} +.gold { + color: #f7ca18; +} + +#header { + margin-bottom: 40px; +} +#header .h-card { +} +#header .title { +font-size:1.2em;padding-right:15px;color:#fefefe; +} +#header .title:hover { +text-decoration: none; +} +#header .menu { +padding: 20px 0 10px 0; +} +#header .menu ul { +display:inline;list-style-type:none;padding:0; +} +#header .menu li { +float:left; +padding-right:10px; +margin-bottom:10px; +} +#header .menu a { + padding: 2px 7px; +} +#header .menu a.selected { +background:#f7ca18;color:#634806; +border-radius:2px; +} +#header .menu a:hover { +background:#f7ca18;color:#060606; +text-decoration: none; +} +#container { +width:90%;max-width: 720px;margin:40px auto; +} +#container #notes { +margin-top:20px; +} +.actor-box { +display:block;text-decoration:none;margin-bottom:40px; +} +.actor-box .actor-icon { +width: 100%; +max-width:120px; +border-radius:2px; +} +.actor-box h3 { margin:0; } +.note .l { +color:#666; +} +.note { +display:flex;margin-bottom:70px; +} +.note .h-card { +flex:initial;width:50px; +} +.note .u-photo { +width:50px;border-radius:2px; +} +.note .note-wrapper { +flex:1;padding-left:15px; +} +.note .bottom-bar { +margin-top:10px; +} +.bar-item { +background: #222; +padding: 5px; +color:#bbb; +margin-right:5px; +border-radius:2px; +} +.bottom-bar .perma-item { +margin-right:5px; +} +.bottom-bar a.bar-item:hover { + text-decoration: none; +} +.note .img-attachment { +max-width:100%; +border-radius:2px; +} +.note h3 { +font-size:1.1em;color:#ccc; +} +.note .note-container { +clear:right;padding:10px 0; +} +.note strong { +font-weight:600; +} +.footer > div { +width:90%;max-width: 720px;margin:40px auto; +} +.footer a, .footer a:hover, .footer a:visited { + text-decoration:underline; + color:#808080; +} +.summary { +color: #ddd; +font-size:1.3em; +margin-top:50px; +margin-bottom:70px; +} +.summary a, .summay a:hover { +color:#ddd; +text-decoration:underline; +} +#followers, #following, #new { + margin-top:50px; +} +#admin { + margin-top:50px; +} +textarea, input { + background: #222; + padding: 10px; + color: #bbb; + border: 0px; + border-radius: 2px; +} +input { + padding: 10px; +} +input[type=submit] { + color: #f7ca18; + text-transform: uppercase; +} diff --git a/static/css/.gitignore b/static/css/.gitignore new file mode 100644 index 0000000..d6b7ef3 --- /dev/null +++ b/static/css/.gitignore @@ -0,0 +1,2 @@ +* +!.gitignore diff --git a/static/media/.gitignore b/static/media/.gitignore new file 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+++ b/tasks.py @@ -0,0 +1,56 @@ +import os +import logging +import random + +import requests +from celery import Celery +from requests.exceptions import HTTPError + +from config import HEADERS +from config import ID +from config import DB +from config import KEY +from config import USER_AGENT +from utils.httpsig import HTTPSigAuth +from utils.opengraph import fetch_og_metadata + + +log = logging.getLogger() +app = Celery('tasks', broker=os.getenv('MICROBLOGPUB_AMQP_BROKER', 'pyamqp://guest@localhost//')) +# app = Celery('tasks', broker='pyamqp://guest@rabbitmq//') +SigAuth = HTTPSigAuth(ID+'#main-key', KEY.privkey) + + +@app.task(bind=True, max_retries=12) +def post_to_inbox(self, payload, to): + try: + log.info('payload=%s', payload) + log.info('to=%s', to) + resp = requests.post(to, data=payload, auth=SigAuth, headers={ + 'Content-Type': HEADERS[1], + 'Accept': HEADERS[1], + 'User-Agent': USER_AGENT, + }) + print(resp) + log.info('resp=%s', resp) + log.info('resp_body=%s', resp.text) + resp.raise_for_status() + except HTTPError as err: + log.exception('request failed') + if 400 >= err.response.status_code >= 499: + log.info('client error, no retry') + return + self.retry(exc=err, countdown=int(random.uniform(2, 4) ** self.request.retries)) + + +@app.task(bind=True, max_retries=12) +def fetch_og(self, col, remote_id): + try: + log.info('fetch_og_meta remote_id=%s col=%s', remote_id, col) + if col == 'INBOX': + log.info('%d links saved', fetch_og_metadata(USER_AGENT, DB.inbox, remote_id)) + elif col == 'OUTBOX': + log.info('%d links saved', fetch_og_metadata(USER_AGENT, DB.outbox, remote_id)) + except Exception as err: + self.log.exception('failed') + self.retry(exc=err, countdown=int(random.uniform(2, 4) ** self.request.retries)) diff --git a/templates/about.html b/templates/about.html new file mode 100644 index 0000000..7625840 --- /dev/null +++ b/templates/about.html @@ -0,0 +1,22 @@ +{% extends "layout.html" %} +{% import 'utils.html' as utils %} +{% block header %} +{% endblock %} +{% block content %} +
+ +{% include "header.html" %} + +
+
+ +
+ +
+{{ text | safe }} +
{{ me.summary }}
+
+
+ +
+{% endblock %} diff --git a/templates/admin.html b/templates/admin.html new file mode 100644 index 0000000..90e11c7 --- /dev/null +++ b/templates/admin.html @@ -0,0 +1,30 @@ +{% extends "layout.html" %} +{% import 'utils.html' as utils %} +{% block content %} +
+{% include "header.html" %} +
+

Stats

+

DB

+
    +
  • Inbox size: {{ inbox_size }}
    • +
  • Outbox size: {{ outbox_size }}
    • +
  • Object cache size: {{ object_cache_size }}
    • +
  • Actor cache size: {{ actor_cache_size }}
    • +
+

Collections

+
    +
  • followers: {{ col_followers }}
    • +
  • following: {{ col_following }}
    • +
  • liked: {{col_liked }}
    • +
+

Known Instances

+ +
+ +
+{% endblock %} diff --git a/templates/authorize_remote_follow.html b/templates/authorize_remote_follow.html new file mode 100644 index 0000000..78b7ef0 --- /dev/null +++ b/templates/authorize_remote_follow.html @@ -0,0 +1,15 @@ +{% extends "layout.html" %} +{% import 'utils.html' as utils %} +{% block header %} +{% endblock %} +{% block content %} +
+

You're about to follow {{ profile}}

+ +
+ + +
+ +
+{% endblock %} diff --git a/templates/followers.html b/templates/followers.html new file mode 100644 index 0000000..c4d03e2 --- /dev/null +++ b/templates/followers.html @@ -0,0 +1,16 @@ +{% extends "layout.html" %} +{% import 'utils.html' as utils %} +{% block header %} +{% endblock %} +{% block content %} +
+{% include "header.html" %} + +
+ {% for follower in followers_data %} + {{ utils.display_actor(follower) }} + {% endfor %} +
+ +
+{% endblock %} diff --git a/templates/following.html b/templates/following.html new file mode 100644 index 0000000..c783133 --- /dev/null +++ b/templates/following.html @@ -0,0 +1,16 @@ +{% extends "layout.html" %} +{% import 'utils.html' as utils %} +{% block header %} +{% endblock %} +{% block content %} +
+{% include "header.html" %} + +
+ {% for followed in following_data %} + {{ utils.display_actor(followed) }} + {% endfor %} +
+ +
+{% endblock %} diff --git a/templates/header.html b/templates/header.html new file mode 100644 index 0000000..e3ca067 --- /dev/null +++ b/templates/header.html @@ -0,0 +1,29 @@ + diff --git a/templates/index.html b/templates/index.html new file mode 100644 index 0000000..acf6b16 --- /dev/null +++ b/templates/index.html @@ -0,0 +1,45 @@ +{% extends "layout.html" %} +{% import 'utils.html' as utils %} +{% block header %} + + + + + + + + + + + + +{% endblock %} +{% block content %} +
+ + +{% include "header.html" %} + +
+{{ config.SUMMARY | safe }} +
+ +
+ {% for item in outbox_data %} + + {% if item.type == 'Announce' %} + {% set boost_actor = item.activity.actor | get_actor %} +

{{ boost_actor.name }} boosted

+ {% if item.ref %} + {{ utils.display_note(item.ref, ui=False) }} + {% endif %} + + {% elif item.type == 'Create' %} + {{ utils.display_note(item) }} + {% endif %} + + {% endfor %} +
+ +
+{% endblock %} diff --git a/templates/indieauth_flow.html b/templates/indieauth_flow.html new file mode 100644 index 0000000..c0ce2c9 --- /dev/null +++ b/templates/indieauth_flow.html @@ -0,0 +1,42 @@ +{% extends "layout.html" %} +{% import 'utils.html' as utils %} +{% block header %} +{% endblock %} +{% block content %} +
+ {% if session.logged_in %}logged{% else%}not logged{%endif%} + +
+{% if client.logo %} +
+ +
+{% endif %} +
+
+{{ client.name }} +

wants you to login

+
+
+
+ +
+ {% if scopes %} +

Scopes

+
    + {% for scope in scopes %} +
  • +
    • + {% endfor %} +
+ {% endif %} + + + + + + +
+ +
+{% endblock %} diff --git a/templates/layout.html b/templates/layout.html new file mode 100644 index 0000000..a50d6fb --- /dev/null +++ b/templates/layout.html @@ -0,0 +1,29 @@ + + + + + + +{{ config.USERNAME }} + + + + + + + + + + + + +
+{% block content %}{% endblock %} +
+
+
+ Powered by microblog.pub (source code) and the ActivityPub protocol +
+
+ + diff --git a/templates/login.html b/templates/login.html new file mode 100644 index 0000000..2c16998 --- /dev/null +++ b/templates/login.html @@ -0,0 +1,36 @@ +{% extends "layout.html" %} +{% import 'utils.html' as utils %} +{% block header %} +{% endblock %} +{% block content %} +
+ {% if session.logged_in %}logged{% else%}not logged{%endif%} + +
+ + {% if u2f_enabled %} + + + {% else %} + + {% endif %} +
+ +
+{% if u2f_enabled %} + +{% endif %} +{% endblock %} diff --git a/templates/new.html b/templates/new.html new file mode 100644 index 0000000..2e73f38 --- /dev/null +++ b/templates/new.html @@ -0,0 +1,17 @@ +{% extends "layout.html" %} +{% import 'utils.html' as utils %} +{% block content %} +
+{% include "header.html" %} +
+
+{% if reply %}{% endif %} + +
+ +
+
+ +
+
+{% endblock %} diff --git a/templates/note.html b/templates/note.html new file mode 100644 index 0000000..55bdfa2 --- /dev/null +++ b/templates/note.html @@ -0,0 +1,23 @@ +{% extends "layout.html" %} +{% import 'utils.html' as utils %} +{% block header %} + + + + + + + + + + +{% endblock %} +{% block content %} +
+{% include "header.html" %} +{{ utils.display_note(note, perma=True) }} +{% for reply in replies %} +{{ utils.display_note(reply, perma=False) }} +{% endfor %} +
+{% endblock %} diff --git a/templates/remote_follow.html b/templates/remote_follow.html new file mode 100644 index 0000000..8b54d49 --- /dev/null +++ b/templates/remote_follow.html @@ -0,0 +1,16 @@ +{% extends "layout.html" %} +{% import 'utils.html' as utils %} +{% block header %} +{% endblock %} +{% block content %} +
+{% include "header.html" %} +

You're about to follow me

+ +
+ + +
+ +
+{% endblock %} diff --git a/templates/stream.html b/templates/stream.html new file mode 100644 index 0000000..4759ae0 --- /dev/null +++ b/templates/stream.html @@ -0,0 +1,39 @@ +{% extends "layout.html" %} +{% import 'utils.html' as utils %} +{% block content %} +
+{% include "header.html" %} +
+ +
+ {% for item in inbox_data %} + {% if item.type == 'Create' %} + {{ utils.display_note(item, ui=True) }} + {% else %} + + {% if item.type == 'Announce' %} + + {% set boost_actor = item.activity.actor | get_actor %} +

{{ boost_actor.name or boost_actor.preferredUsername }} boosted

+ {% if item.ref %} + {{ utils.display_note(item.ref, ui=True) }} + {% endif %} + {% endif %} + + {% if item.type == 'Follow' %} +

{{ item.activity.actor }} followed you

+ {% elif item.type == 'Accept' %} +

you followed {{ item.activity.actor }}

+ {% elif item.type == 'Undo' %} +

{{ item.activity.actor }} unfollowed you

+ {% else %} + {% endif %} + + + {% endif %} + {% endfor %} +
+
+ +
+{% endblock %} diff --git a/templates/tags.html b/templates/tags.html new file mode 100644 index 0000000..fc02452 --- /dev/null +++ b/templates/tags.html @@ -0,0 +1,30 @@ +{% extends "layout.html" %} +{% import 'utils.html' as utils %} +{% block header %} + + + + + + + + + + + + +{% endblock %} +{% block content %} +
+ + +{% include "header.html" %} +

#{{ tag }}

+
+ {% for item in outbox_data %} + {{ utils.display_note(item) }} + {% endfor %} +
+ +
+{% endblock %} diff --git a/templates/u2f.html b/templates/u2f.html new file mode 100644 index 0000000..0d94691 --- /dev/null +++ b/templates/u2f.html @@ -0,0 +1,29 @@ +{% extends "layout.html" %} +{% import 'utils.html' as utils %} +{% block header %} +{% endblock %} +{% block content %} +
+ {% if session.logged_in %}logged{% else%}not logged{%endif%} + +
+ + +
+ +
+ +{% endblock %} diff --git a/templates/utils.html b/templates/utils.html new file mode 100644 index 0000000..5808374 --- /dev/null +++ b/templates/utils.html @@ -0,0 +1,91 @@ +{% macro display_actor(follower) -%} + +
+
+{% if not follower.icon %} + +{% else %} +{% endif %} +
+
+

{{ follower.name or follower.preferredUsername }}

+@{{ follower.preferredUsername }}@{{ follower.url | domain }} +
{{ follower.summary | safe }}
+
+
+ +{%- endmacro %} + +{% macro display_note(item, perma=False, ui=False) -%} +{% set actor = item.activity.object.attributedTo | get_actor %} +
+ +
+ + + +
+ +
+ {{ actor.name or actor.preferredUsername }} @{{ actor.preferredUsername }}@{{ actor.url | domain }} + + {% if not perma %} + + + + + {% endif %} + {% if item.activity.object.summary %}

{{ item.activity.object.summary }}

{% endif %} +
+ {{ item.activity.object.content | safe }} +
+ + {% if item.activity.object.attachment %} +
+ {% if item.activity.object.attachment | not_only_imgs %} +

Attachment

+ + {% endif %} +
+ {% endif %} + +
+{% if perma %}{{ item.activity.object.published | format_time }} {% endif %} +permalink +{% if item.meta.count_reply %}{{ item.meta.count_reply }} replies{% endif %} +{% if item.meta.count_boost %}{{ item.meta.count_boost }} boosts{% endif %} +{% if item.meta.count_like %}{{ item.meta.count_like }} likes{% endif %} +{% if ui %} +{% set aid = item.activity.object.id | quote_plus %} +reply + +{% set redir = request.path + "#activity-" + item['_id'].__str__() %} + +{% if item.meta.boosted %} +unboost +{% else %} +boost +{% endif %} + +{% if item.meta.liked %} +unlike +{% else %} +like +{% endif %} + +{% endif %} +
+
+ +
+{%- endmacro %} diff --git a/utils/__init__.py b/utils/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/utils/actor_service.py b/utils/actor_service.py new file mode 100644 index 0000000..af7acc8 --- /dev/null +++ b/utils/actor_service.py @@ -0,0 +1,72 @@ +import logging + +import requests +from urllib.parse import urlparse +from Crypto.PublicKey import RSA + +logger = logging.getLogger(__name__) + + +class NotAnActorError(Exception): + def __init__(self, activity): + self.activity = activity + + +class ActorService(object): + def __init__(self, user_agent, col, actor_id, actor_data, instances): + logger.debug(f'Initializing ActorService user_agent={user_agent}') + self._user_agent = user_agent + self._col = col + self._in_mem = {actor_id: actor_data} + self._instances = instances + self._known_instances = set() + + def _fetch(self, actor_url): + logger.debug(f'fetching remote object {actor_url}') + resp = requests.get(actor_url, headers={ + 'Accept': 'application/activity+json', + 'User-Agent': self._user_agent, + }) + resp.raise_for_status() + return resp.json() + + def get(self, actor_url, reload_cache=False): + logger.info(f'get actor {actor_url} (reload_cache={reload_cache})') + + if actor_url in self._in_mem: + return self._in_mem[actor_url] + + instance = urlparse(actor_url)._replace(path='', query='', fragment='').geturl() + if instance not in self._known_instances: + self._known_instances.add(instance) + if not self._instances.find_one({'instance': instance}): + self._instances.insert({'instance': instance, 'first_object': actor_url}) + + if reload_cache: + actor = self._fetch(actor_url) + self._in_mem[actor_url] = actor + self._col.update({'actor_id': actor_url}, {'$set': {'cached_response': actor}}, upsert=True) + return actor + + cached_actor = self._col.find_one({'actor_id': actor_url}) + if cached_actor: + return cached_actor['cached_response'] + + actor = self._fetch(actor_url) + if not 'type' in actor: + raise NotAnActorError(None) + if actor['type'] != 'Person': + raise NotAnActorError(actor) + + self._col.update({'actor_id': actor_url}, {'$set': {'cached_response': actor}}, upsert=True) + self._in_mem[actor_url] = actor + return actor + + def get_public_key(self, actor_url, reload_cache=False): + profile = self.get(actor_url, reload_cache=reload_cache) + pub = profile['publicKey'] + return pub['id'], RSA.importKey(pub['publicKeyPem']) + + def get_inbox_url(self, actor_url, reload_cache=False): + profile = self.get(actor_url, reload_cache=reload_cache) + return profile.get('inbox') diff --git a/utils/content_helper.py b/utils/content_helper.py new file mode 100644 index 0000000..18fabf4 --- /dev/null +++ b/utils/content_helper.py @@ -0,0 +1,57 @@ +import typing +import re + +from bleach.linkifier import Linker +from markdown import markdown + +from utils.webfinger import get_actor_url +from config import USERNAME, BASE_URL, ID +from config import ACTOR_SERVICE + +from typing import List, Optional, Tuple, Dict, Any, Union, Type + + +def set_attrs(attrs, new=False): + attrs[(None, u'target')] = u'_blank' + attrs[(None, u'class')] = u'external' + attrs[(None, u'rel')] = u'noopener' + attrs[(None, u'title')] = attrs[(None, u'href')] + return attrs + + +LINKER = Linker(callbacks=[set_attrs]) +HASHTAG_REGEX = re.compile(r"(#[\d\w\.]+)") +MENTION_REGEX = re.compile(r"@[\d\w_.+-]+@[\d\w-]+\.[\d\w\-.]+") + + +def hashtagify(content: str) -> Tuple[str, List[Dict[str, str]]]: + tags = [] + for hashtag in re.findall(HASHTAG_REGEX, content): + tag = hashtag[1:] + link = f'' + tags.append(dict(href=f'{BASE_URL}/tags/{tag}', name=hashtag, type='Hashtag')) + content = content.replace(hashtag, link) + return content, tags + + +def mentionify(content: str) -> Tuple[str, List[Dict[str, str]]]: + tags = [] + for mention in re.findall(MENTION_REGEX, content): + _, username, domain = mention.split('@') + actor_url = get_actor_url(mention) + p = ACTOR_SERVICE.get(actor_url) + tags.append(dict(type='Mention', href=p['id'], name=mention)) + link = f'@{username}' + content = content.replace(mention, link) + return content, tags + + +def parse_markdown(content: str) -> Tuple[str, List[Dict[str, str]]]: + tags = [] + content = LINKER.linkify(content) + content, hashtag_tags = hashtagify(content) + tags.extend(hashtag_tags) + content, mention_tags = mentionify(content) + tags.extend(mention_tags) + content = markdown(content) + return content, tags diff --git a/utils/httpsig.py b/utils/httpsig.py new file mode 100644 index 0000000..a2e77c5 --- /dev/null +++ b/utils/httpsig.py @@ -0,0 +1,87 @@ +"""Implements HTTP signature for Flask requests. + +Mastodon instances won't accept requests that are not signed using this scheme. + +""" +from datetime import datetime +from urllib.parse import urlparse +from typing import Any, Dict +import base64 +import hashlib + +from flask import request +from requests.auth import AuthBase + +from Crypto.Signature import PKCS1_v1_5 +from Crypto.Hash import SHA256 + + +def _build_signed_string(signed_headers: str, method: str, path: str, headers: Any, body_digest: str) -> str: + out = [] + for signed_header in signed_headers.split(' '): + if signed_header == '(request-target)': + out.append('(request-target): '+method.lower()+' '+path) + elif signed_header == 'digest': + out.append('digest: '+body_digest) + else: + out.append(signed_header+': '+headers[signed_header]) + return '\n'.join(out) + + +def _parse_sig_header(val: str) -> Dict[str, str]: + out = {} + for data in val.split(','): + k, v = data.split('=', 1) + out[k] = v[1:len(v)-1] + return out + + +def _verify_h(signed_string, signature, pubkey): + signer = PKCS1_v1_5.new(pubkey) + digest = SHA256.new() + digest.update(signed_string.encode('utf-8')) + return signer.verify(digest, signature) + + +def _body_digest() -> str: + h = hashlib.new('sha256') + h.update(request.data) + return 'SHA-256='+base64.b64encode(h.digest()).decode('utf-8') + + +def verify_request(actor_service) -> bool: + hsig = _parse_sig_header(request.headers.get('Signature')) + signed_string = _build_signed_string(hsig['headers'], request.method, request.path, request.headers, _body_digest()) + _, rk = actor_service.get_public_key(hsig['keyId']) + return _verify_h(signed_string, base64.b64decode(hsig['signature']), rk) + + +class HTTPSigAuth(AuthBase): + def __init__(self, keyid, privkey): + self.keyid = keyid + self.privkey = privkey + + def __call__(self, r): + host = urlparse(r.url).netloc + bh = hashlib.new('sha256') + bh.update(r.body.encode('utf-8')) + bodydigest = 'SHA-256='+base64.b64encode(bh.digest()).decode('utf-8') + date = datetime.utcnow().strftime('%a, %d %b %Y %H:%M:%S GMT') + r.headers.update({'Digest': bodydigest, 'Date': date}) + r.headers.update({'Host': host}) + sigheaders = '(request-target) user-agent host date digest content-type' + to_be_signed = _build_signed_string(sigheaders, r.method, r.path_url, r.headers, bodydigest) + signer = PKCS1_v1_5.new(self.privkey) + digest = SHA256.new() + digest.update(to_be_signed.encode('utf-8')) + sig = base64.b64encode(signer.sign(digest)) + sig = sig.decode('utf-8') + headers = { + 'Signature': 'keyId="{keyid}",algorithm="rsa-sha256",headers="{headers}",signature="{signature}"'.format( + keyid=self.keyid, + signature=sig, + headers=sigheaders, + ), + } + r.headers.update(headers) + return r diff --git a/utils/key.py b/utils/key.py new file mode 100644 index 0000000..526b3be --- /dev/null +++ b/utils/key.py @@ -0,0 +1,39 @@ +import os +import binascii + +from Crypto.PublicKey import RSA + +KEY_DIR = 'config/' + + +def get_secret_key(name:str) -> str: + key_path = f'{KEY_DIR}{name}.key' + if not os.path.exists(key_path): + k = binascii.hexlify(os.urandom(32)).decode('utf-8') + with open(key_path, 'w+') as f: + f.write(k) + return k + + with open(key_path) as f: + return f.read() + + +class Key(object): + def __init__(self, user: str, domain: str, create: bool = True) -> None: + user = user.replace('.', '_') + domain = domain.replace('.', '_') + key_path = f'{KEY_DIR}/key_{user}_{domain}.pem' + if os.path.isfile(key_path): + with open(key_path) as f: + self.privkey_pem = f.read() + self.privkey = RSA.importKey(self.privkey_pem) + self.pubkey_pem = self.privkey.publickey().exportKey('PEM').decode('utf-8') + else: + if not create: + raise Exception('must init private key first') + k = RSA.generate(4096) + self.privkey_pem = k.exportKey('PEM').decode('utf-8') + self.pubkey_pem = k.publickey().exportKey('PEM').decode('utf-8') + with open(key_path, 'w') as f: + f.write(self.privkey_pem) + self.privkey = k diff --git a/utils/linked_data_sig.py b/utils/linked_data_sig.py new file mode 100644 index 0000000..9523ed4 --- /dev/null +++ b/utils/linked_data_sig.py @@ -0,0 +1,53 @@ +from pyld import jsonld +import hashlib +from datetime import datetime + +from Crypto.Signature import PKCS1_v1_5 +from Crypto.Hash import SHA256 +import base64 + + +def options_hash(doc): + doc = dict(doc['signature']) + for k in ['type', 'id', 'signatureValue']: + if k in doc: + del doc[k] + doc['@context'] = 'https://w3id.org/identity/v1' + normalized = jsonld.normalize(doc, {'algorithm': 'URDNA2015', 'format': 'application/nquads'}) + h = hashlib.new('sha256') + h.update(normalized.encode('utf-8')) + return h.hexdigest() + + +def doc_hash(doc): + doc = dict(doc) + if 'signature' in doc: + del doc['signature'] + normalized = jsonld.normalize(doc, {'algorithm': 'URDNA2015', 'format': 'application/nquads'}) + h = hashlib.new('sha256') + h.update(normalized.encode('utf-8')) + return h.hexdigest() + + +def verify_signature(doc, pubkey): + to_be_signed = options_hash(doc) + doc_hash(doc) + signature = doc['signature']['signatureValue'] + signer = PKCS1_v1_5.new(pubkey) + digest = SHA256.new() + digest.update(to_be_signed.encode('utf-8')) + return signer.verify(digest, base64.b64decode(signature)) + + +def generate_signature(doc, privkey): + options = { + 'type': 'RsaSignature2017', + 'creator': doc['actor'] + '#main-key', + 'created': datetime.utcnow().replace(microsecond=0).isoformat() + 'Z', + } + doc['signature'] = options + to_be_signed = options_hash(doc) + doc_hash(doc) + signer = PKCS1_v1_5.new(privkey) + digest = SHA256.new() + digest.update(to_be_signed.encode('utf-8')) + sig = base64.b64encode(signer.sign(digest)) + options['signatureValue'] = sig.decode('utf-8') diff --git a/utils/object_service.py b/utils/object_service.py new file mode 100644 index 0000000..185488f --- /dev/null +++ b/utils/object_service.py @@ -0,0 +1,60 @@ +import requests +from urllib.parse import urlparse + + +class ObjectService(object): + def __init__(self, user_agent, col, inbox, outbox, instances): + self._user_agent = user_agent + self._col = col + self._inbox = inbox + self._outbox = outbox + self._instances = instances + self._known_instances = set() + + def _fetch_remote(self, object_id): + print(f'fetch remote {object_id}') + resp = requests.get(object_id, headers={ + 'Accept': 'application/activity+json', + 'User-Agent': self._user_agent, + }) + resp.raise_for_status() + return resp.json() + + def _fetch(self, object_id): + instance = urlparse(object_id)._replace(path='', query='', fragment='').geturl() + if instance not in self._known_instances: + self._known_instances.add(instance) + if not self._instances.find_one({'instance': instance}): + self._instances.insert({'instance': instance, 'first_object': object_id}) + + obj = self._inbox.find_one({'$or': [{'remote_id': object_id}, {'type': 'Create', 'activity.object.id': object_id}]}) + if obj: + if obj['remote_id'] == object_id: + return obj['activity'] + return obj['activity']['object'] + + obj = self._outbox.find_one({'$or': [{'remote_id': object_id}, {'type': 'Create', 'activity.object.id': object_id}]}) + if obj: + if obj['remote_id'] == object_id: + return obj['activity'] + return obj['activity']['object'] + + return self._fetch_remote(object_id) + + def get(self, object_id, reload_cache=False, part_of_stream=False, announce_published=None): + if reload_cache: + obj = self._fetch(object_id) + self._col.update({'object_id': object_id}, {'$set': {'cached_object': obj, 'meta.part_of_stream': part_of_stream, 'meta.announce_published': announce_published}}, upsert=True) + return obj + + cached_object = self._col.find_one({'object_id': object_id}) + if cached_object: + print(f'ObjectService: {cached_object}') + return cached_object['cached_object'] + + obj = self._fetch(object_id) + + self._col.update({'object_id': object_id}, {'$set': {'cached_object': obj, 'meta.part_of_stream': part_of_stream, 'meta.announce_published': announce_published}}, upsert=True) + # print(f'ObjectService: {obj}') + + return obj diff --git a/utils/opengraph.py b/utils/opengraph.py new file mode 100644 index 0000000..e67a5a8 --- /dev/null +++ b/utils/opengraph.py @@ -0,0 +1,46 @@ +from urllib.parse import urlparse + +import ipaddress +import opengraph +import requests +from bs4 import BeautifulSoup + +from .urlutils import is_url_valid + + +def links_from_note(note): + tags_href= set() + for t in note.get('tag', []): + h = t.get('href') + if h: + # TODO(tsileo): fetch the URL for Actor profile, type=mention + tags_href.add(h) + + links = set() + soup = BeautifulSoup(note['content']) + for link in soup.find_all('a'): + h = link.get('href') + if h.startswith('http') and h not in tags_href and is_url_valid(h): + links.add(h) + + return links + + +def fetch_og_metadata(user_agent, col, remote_id): + doc = col.find_one({'remote_id': remote_id}) + if not doc: + raise ValueError + note = doc['activity']['object'] + print(note) + links = links_from_note(note) + if not links: + return 0 + # FIXME(tsileo): set the user agent by giving HTML directly to OpenGraph + htmls = [] + for l in links: + r = requests.get(l, headers={'User-Agent': user_agent}) + r.raise_for_status() + htmls.append(r.text) + links_og_metadata = [dict(opengraph.OpenGraph(html=html)) for html in htmls] + col.update_one({'remote_id': remote_id}, {'$set': {'meta.og_metadata': links_og_metadata}}) + return len(links) diff --git a/utils/urlutils.py b/utils/urlutils.py new file mode 100644 index 0000000..b304f5e --- /dev/null +++ b/utils/urlutils.py @@ -0,0 +1,27 @@ +import logging +import socket +import ipaddress +from urllib.parse import urlparse + +logger = logging.getLogger(__name__) + + +def is_url_valid(url): + parsed = urlparse(url) + if parsed.scheme not in ['http', 'https']: + return False + + if parsed.hostname in ['localhost']: + return False + + try: + ip_address = socket.getaddrinfo(parsed.hostname, parsed.port or 80)[0][4][0] + except socket.gaierror: + logger.exception(f'failed to lookup url {url}') + return False + + if ipaddress.ip_address(ip_address).is_private: + logger.info(f'rejecting private URL {url}') + return False + + return True diff --git a/utils/webfinger.py b/utils/webfinger.py new file mode 100644 index 0000000..296ecae --- /dev/null +++ b/utils/webfinger.py @@ -0,0 +1,63 @@ +from typing import Optional +from urllib.parse import urlparse + +import requests + +def get_remote_follow_template(resource: str) -> Optional[str]: + """Mastodon-like WebFinger resolution to retrieve the activity stream Actor URL. + + Returns: + the Actor URL or None if the resolution failed. + """ + if resource.startswith('http'): + host = urlparse(resource).netloc + else: + if resource.startswith('acct:'): + resource = resource[5:] + if resource.startswith('@'): + resource = resource[1:] + _, host = resource.split('@', 1) + resource='acct:'+resource + resp = requests.get( + f'https://{host}/.well-known/webfinger', + {'resource': resource} + ) + print(resp, resp.request.url) + if resp.status_code == 404: + return None + resp.raise_for_status() + data = resp.json() + for link in data['links']: + if link.get('rel') == 'http://ostatus.org/schema/1.0/subscribe': + return link.get('template') + return None + + +def get_actor_url(resource: str) -> Optional[str]: + """Mastodon-like WebFinger resolution to retrieve the activity stream Actor URL. + + Returns: + the Actor URL or None if the resolution failed. + """ + if resource.startswith('http'): + host = urlparse(resource).netloc + else: + if resource.startswith('acct:'): + resource = resource[5:] + if resource.startswith('@'): + resource = resource[1:] + _, host = resource.split('@', 1) + resource='acct:'+resource + resp = requests.get( + f'https://{host}/.well-known/webfinger', + {'resource': resource} + ) + print(resp, resp.request.url) + if resp.status_code == 404: + return None + resp.raise_for_status() + data = resp.json() + for link in data['links']: + if link.get('rel') == 'self' and link.get('type') == 'application/activity+json': + return link.get('href') + return None