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GNU AFFERO GENERAL PUBLIC LICENSE
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# microblog.pub
This branch is a complete rewrite of the original microblog.pub server.
The original server became hard to debug, maintain and is not super easy to deploy (due to the dependecies like MongoDB).
This rewrite is built using "modern" Python 3.10, SQLite and does not need any external tasks queue service.
It is still in early development, this README will be updated when I get to deploy a personal instance in the wild.

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# A generic, single database configuration.
[alembic]
# path to migration scripts
script_location = alembic
# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s
# Uncomment the line below if you want the files to be prepended with date and time
# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file
# for all available tokens
# file_template = %%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s
# sys.path path, will be prepended to sys.path if present.
# defaults to the current working directory.
prepend_sys_path = .
# timezone to use when rendering the date within the migration file
# as well as the filename.
# If specified, requires the python-dateutil library that can be
# installed by adding `alembic[tz]` to the pip requirements
# string value is passed to dateutil.tz.gettz()
# leave blank for localtime
# timezone =
# max length of characters to apply to the
# "slug" field
# truncate_slug_length = 40
# set to 'true' to run the environment during
# the 'revision' command, regardless of autogenerate
# revision_environment = false
# set to 'true' to allow .pyc and .pyo files without
# a source .py file to be detected as revisions in the
# versions/ directory
# sourceless = false
# version location specification; This defaults
# to alembic/versions. When using multiple version
# directories, initial revisions must be specified with --version-path.
# The path separator used here should be the separator specified by "version_path_separator" below.
# version_locations = %(here)s/bar:%(here)s/bat:alembic/versions
# version path separator; As mentioned above, this is the character used to split
# version_locations. The default within new alembic.ini files is "os", which uses os.pathsep.
# If this key is omitted entirely, it falls back to the legacy behavior of splitting on spaces and/or commas.
# Valid values for version_path_separator are:
#
# version_path_separator = :
# version_path_separator = ;
# version_path_separator = space
version_path_separator = os # Use os.pathsep. Default configuration used for new projects.
# the output encoding used when revision files
# are written from script.py.mako
# output_encoding = utf-8
sqlalchemy.url =
[post_write_hooks]
# post_write_hooks defines scripts or Python functions that are run
# on newly generated revision scripts. See the documentation for further
# detail and examples
# format using "black" - use the console_scripts runner, against the "black" entrypoint
# hooks = black
# black.type = console_scripts
# black.entrypoint = black
# black.options = -l 79 REVISION_SCRIPT_FILENAME
# Logging configuration
[loggers]
keys = root,sqlalchemy,alembic
[handlers]
keys = console
[formatters]
keys = generic
[logger_root]
level = WARN
handlers = console
qualname =
[logger_sqlalchemy]
level = WARN
handlers =
qualname = sqlalchemy.engine
[logger_alembic]
level = INFO
handlers =
qualname = alembic
[handler_console]
class = StreamHandler
args = (sys.stderr,)
level = NOTSET
formatter = generic
[formatter_generic]
format = %(levelname)-5.5s [%(name)s] %(message)s
datefmt = %H:%M:%S

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Generic single-database configuration.

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from logging.config import fileConfig
from sqlalchemy import engine_from_config
from sqlalchemy import pool
import app.models # noqa: F401 # Register models
from alembic import context
from app.database import SQLALCHEMY_DATABASE_URL
from app.database import Base
# this is the Alembic Config object, which provides
# access to the values within the .ini file in use.
config = context.config
# Interpret the config file for Python logging.
# This line sets up loggers basically.
if config.config_file_name is not None:
fileConfig(config.config_file_name)
config.set_main_option("sqlalchemy.url", SQLALCHEMY_DATABASE_URL)
# add your model's MetaData object here
# for 'autogenerate' support
# from myapp import mymodel
# target_metadata = mymodel.Base.metadata
target_metadata = Base.metadata
# other values from the config, defined by the needs of env.py,
# can be acquired:
# my_important_option = config.get_main_option("my_important_option")
# ... etc.
def run_migrations_offline() -> None:
"""Run migrations in 'offline' mode.
This configures the context with just a URL
and not an Engine, though an Engine is acceptable
here as well. By skipping the Engine creation
we don't even need a DBAPI to be available.
Calls to context.execute() here emit the given string to the
script output.
"""
url = config.get_main_option("sqlalchemy.url")
context.configure(
url=url,
target_metadata=target_metadata,
literal_binds=True,
dialect_opts={"paramstyle": "named"},
)
with context.begin_transaction():
context.run_migrations()
def run_migrations_online() -> None:
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
connectable = engine_from_config(
config.get_section(config.config_ini_section),
prefix="sqlalchemy.",
poolclass=pool.NullPool,
)
with connectable.connect() as connection:
context.configure(connection=connection, target_metadata=target_metadata)
with context.begin_transaction():
context.run_migrations()
if context.is_offline_mode():
run_migrations_offline()
else:
run_migrations_online()

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"""${message}
Revision ID: ${up_revision}
Revises: ${down_revision | comma,n}
Create Date: ${create_date}
"""
from alembic import op
import sqlalchemy as sa
${imports if imports else ""}
# revision identifiers, used by Alembic.
revision = ${repr(up_revision)}
down_revision = ${repr(down_revision)}
branch_labels = ${repr(branch_labels)}
depends_on = ${repr(depends_on)}
def upgrade() -> None:
${upgrades if upgrades else "pass"}
def downgrade() -> None:
${downgrades if downgrades else "pass"}

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"""Initial migration
Revision ID: b122c3a69fc9
Revises:
Create Date: 2022-06-22 19:54:19.153320
"""
import sqlalchemy as sa
from alembic import op
# revision identifiers, used by Alembic.
revision = 'b122c3a69fc9'
down_revision = None
branch_labels = None
depends_on = None
def upgrade() -> None:
# ### commands auto generated by Alembic - please adjust! ###
op.create_table('actors',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('updated_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('ap_id', sa.String(), nullable=False),
sa.Column('ap_actor', sa.JSON(), nullable=False),
sa.Column('ap_type', sa.String(), nullable=False),
sa.Column('handle', sa.String(), nullable=True),
sa.PrimaryKeyConstraint('id')
)
op.create_index(op.f('ix_actors_ap_id'), 'actors', ['ap_id'], unique=True)
op.create_index(op.f('ix_actors_handle'), 'actors', ['handle'], unique=False)
op.create_index(op.f('ix_actors_id'), 'actors', ['id'], unique=False)
op.create_table('inbox',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('updated_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('actor_id', sa.Integer(), nullable=False),
sa.Column('server', sa.String(), nullable=False),
sa.Column('is_hidden_from_stream', sa.Boolean(), nullable=False),
sa.Column('ap_actor_id', sa.String(), nullable=False),
sa.Column('ap_type', sa.String(), nullable=False),
sa.Column('ap_id', sa.String(), nullable=False),
sa.Column('ap_context', sa.String(), nullable=True),
sa.Column('ap_published_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('ap_object', sa.JSON(), nullable=False),
sa.Column('activity_object_ap_id', sa.String(), nullable=True),
sa.Column('visibility', sa.Enum('PUBLIC', 'UNLISTED', 'DIRECT', name='visibilityenum'), nullable=False),
sa.Column('relates_to_inbox_object_id', sa.Integer(), nullable=True),
sa.Column('relates_to_outbox_object_id', sa.Integer(), nullable=True),
sa.Column('undone_by_inbox_object_id', sa.Integer(), nullable=True),
sa.Column('liked_via_outbox_object_ap_id', sa.String(), nullable=True),
sa.Column('announced_via_outbox_object_ap_id', sa.String(), nullable=True),
sa.Column('is_bookmarked', sa.Boolean(), nullable=False),
sa.Column('has_replies', sa.Boolean(), nullable=False),
sa.Column('og_meta', sa.JSON(), nullable=True),
sa.ForeignKeyConstraint(['actor_id'], ['actors.id'], ),
sa.ForeignKeyConstraint(['relates_to_inbox_object_id'], ['inbox.id'], ),
sa.ForeignKeyConstraint(['relates_to_outbox_object_id'], ['outbox.id'], ),
sa.ForeignKeyConstraint(['undone_by_inbox_object_id'], ['inbox.id'], ),
sa.PrimaryKeyConstraint('id')
)
op.create_index(op.f('ix_inbox_ap_id'), 'inbox', ['ap_id'], unique=True)
op.create_index(op.f('ix_inbox_id'), 'inbox', ['id'], unique=False)
op.create_table('outbox',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('updated_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('is_hidden_from_homepage', sa.Boolean(), nullable=False),
sa.Column('public_id', sa.String(), nullable=False),
sa.Column('ap_type', sa.String(), nullable=False),
sa.Column('ap_id', sa.String(), nullable=False),
sa.Column('ap_context', sa.String(), nullable=True),
sa.Column('ap_object', sa.JSON(), nullable=False),
sa.Column('activity_object_ap_id', sa.String(), nullable=True),
sa.Column('source', sa.String(), nullable=True),
sa.Column('ap_published_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('visibility', sa.Enum('PUBLIC', 'UNLISTED', 'DIRECT', name='visibilityenum'), nullable=False),
sa.Column('likes_count', sa.Integer(), nullable=False),
sa.Column('announces_count', sa.Integer(), nullable=False),
sa.Column('replies_count', sa.Integer(), nullable=False),
sa.Column('webmentions', sa.JSON(), nullable=True),
sa.Column('og_meta', sa.JSON(), nullable=True),
sa.Column('is_deleted', sa.Boolean(), nullable=False),
sa.Column('relates_to_inbox_object_id', sa.Integer(), nullable=True),
sa.Column('relates_to_outbox_object_id', sa.Integer(), nullable=True),
sa.Column('undone_by_outbox_object_id', sa.Integer(), nullable=True),
sa.ForeignKeyConstraint(['relates_to_inbox_object_id'], ['inbox.id'], ),
sa.ForeignKeyConstraint(['relates_to_outbox_object_id'], ['outbox.id'], ),
sa.ForeignKeyConstraint(['undone_by_outbox_object_id'], ['outbox.id'], ),
sa.PrimaryKeyConstraint('id')
)
op.create_index(op.f('ix_outbox_ap_id'), 'outbox', ['ap_id'], unique=True)
op.create_index(op.f('ix_outbox_id'), 'outbox', ['id'], unique=False)
op.create_index(op.f('ix_outbox_public_id'), 'outbox', ['public_id'], unique=False)
op.create_table('followers',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('updated_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('actor_id', sa.Integer(), nullable=False),
sa.Column('inbox_object_id', sa.Integer(), nullable=False),
sa.Column('ap_actor_id', sa.String(), nullable=False),
sa.ForeignKeyConstraint(['actor_id'], ['actors.id'], ),
sa.ForeignKeyConstraint(['inbox_object_id'], ['inbox.id'], ),
sa.PrimaryKeyConstraint('id'),
sa.UniqueConstraint('actor_id'),
sa.UniqueConstraint('ap_actor_id')
)
op.create_index(op.f('ix_followers_id'), 'followers', ['id'], unique=False)
op.create_table('following',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('updated_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('actor_id', sa.Integer(), nullable=False),
sa.Column('outbox_object_id', sa.Integer(), nullable=False),
sa.Column('ap_actor_id', sa.String(), nullable=False),
sa.ForeignKeyConstraint(['actor_id'], ['actors.id'], ),
sa.ForeignKeyConstraint(['outbox_object_id'], ['outbox.id'], ),
sa.PrimaryKeyConstraint('id'),
sa.UniqueConstraint('actor_id'),
sa.UniqueConstraint('ap_actor_id')
)
op.create_index(op.f('ix_following_id'), 'following', ['id'], unique=False)
op.create_table('notifications',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('notification_type', sa.Enum('NEW_FOLLOWER', 'UNFOLLOW', 'LIKE', 'UNDO_LIKE', 'ANNOUNCE', 'UNDO_ANNOUNCE', 'MENTION', name='notificationtype'), nullable=True),
sa.Column('is_new', sa.Boolean(), nullable=False),
sa.Column('actor_id', sa.Integer(), nullable=True),
sa.Column('outbox_object_id', sa.Integer(), nullable=True),
sa.Column('inbox_object_id', sa.Integer(), nullable=True),
sa.ForeignKeyConstraint(['actor_id'], ['actors.id'], ),
sa.ForeignKeyConstraint(['inbox_object_id'], ['inbox.id'], ),
sa.ForeignKeyConstraint(['outbox_object_id'], ['outbox.id'], ),
sa.PrimaryKeyConstraint('id')
)
op.create_index(op.f('ix_notifications_id'), 'notifications', ['id'], unique=False)
op.create_table('outgoing_activities',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
sa.Column('recipient', sa.String(), nullable=False),
sa.Column('outbox_object_id', sa.Integer(), nullable=False),
sa.Column('tries', sa.Integer(), nullable=False),
sa.Column('next_try', sa.DateTime(timezone=True), nullable=True),
sa.Column('last_try', sa.DateTime(timezone=True), nullable=True),
sa.Column('last_status_code', sa.Integer(), nullable=True),
sa.Column('last_response', sa.String(), nullable=True),
sa.Column('is_sent', sa.Boolean(), nullable=False),
sa.Column('is_errored', sa.Boolean(), nullable=False),
sa.Column('error', sa.String(), nullable=True),
sa.ForeignKeyConstraint(['outbox_object_id'], ['outbox.id'], ),
sa.PrimaryKeyConstraint('id')
)
op.create_index(op.f('ix_outgoing_activities_id'), 'outgoing_activities', ['id'], unique=False)
op.create_table('tagged_outbox_objects',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('outbox_object_id', sa.Integer(), nullable=False),
sa.Column('tag', sa.String(), nullable=False),
sa.ForeignKeyConstraint(['outbox_object_id'], ['outbox.id'], ),
sa.PrimaryKeyConstraint('id'),
sa.UniqueConstraint('outbox_object_id', 'tag', name='uix_tagged_object')
)
op.create_index(op.f('ix_tagged_outbox_objects_id'), 'tagged_outbox_objects', ['id'], unique=False)
op.create_index(op.f('ix_tagged_outbox_objects_tag'), 'tagged_outbox_objects', ['tag'], unique=False)
# ### end Alembic commands ###
def downgrade() -> None:
# ### commands auto generated by Alembic - please adjust! ###
op.drop_index(op.f('ix_tagged_outbox_objects_tag'), table_name='tagged_outbox_objects')
op.drop_index(op.f('ix_tagged_outbox_objects_id'), table_name='tagged_outbox_objects')
op.drop_table('tagged_outbox_objects')
op.drop_index(op.f('ix_outgoing_activities_id'), table_name='outgoing_activities')
op.drop_table('outgoing_activities')
op.drop_index(op.f('ix_notifications_id'), table_name='notifications')
op.drop_table('notifications')
op.drop_index(op.f('ix_following_id'), table_name='following')
op.drop_table('following')
op.drop_index(op.f('ix_followers_id'), table_name='followers')
op.drop_table('followers')
op.drop_index(op.f('ix_outbox_public_id'), table_name='outbox')
op.drop_index(op.f('ix_outbox_id'), table_name='outbox')
op.drop_index(op.f('ix_outbox_ap_id'), table_name='outbox')
op.drop_table('outbox')
op.drop_index(op.f('ix_inbox_id'), table_name='inbox')
op.drop_index(op.f('ix_inbox_ap_id'), table_name='inbox')
op.drop_table('inbox')
op.drop_index(op.f('ix_actors_id'), table_name='actors')
op.drop_index(op.f('ix_actors_handle'), table_name='actors')
op.drop_index(op.f('ix_actors_ap_id'), table_name='actors')
op.drop_table('actors')
# ### end Alembic commands ###

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import enum
import json
import mimetypes
from typing import Any
import httpx
from app import config
from app.httpsig import auth
from app.key import get_pubkey_as_pem
RawObject = dict[str, Any]
AS_CTX = "https://www.w3.org/ns/activitystreams"
AS_PUBLIC = "https://www.w3.org/ns/activitystreams#Public"
ACTOR_TYPES = ["Application", "Group", "Organization", "Person", "Service"]
class VisibilityEnum(str, enum.Enum):
PUBLIC = "public"
UNLISTED = "unlisted"
DIRECT = "direct"
MICROBLOGPUB = {
"@context": [
"https://www.w3.org/ns/activitystreams",
"https://w3id.org/security/v1",
{
"Hashtag": "as:Hashtag",
"PropertyValue": "schema:PropertyValue",
"manuallyApprovesFollowers": "as:manuallyApprovesFollowers",
"ostatus": "http://ostatus.org#",
"schema": "http://schema.org",
"sensitive": "as:sensitive",
"toot": "http://joinmastodon.org/ns#",
"totalItems": "as:totalItems",
"value": "schema:value",
"Emoji": "toot:Emoji",
},
]
}
DEFAULT_CTX = COLLECTION_CTX = [
"https://www.w3.org/ns/activitystreams",
"https://w3id.org/security/v1",
{
# AS ext
"Hashtag": "as:Hashtag",
"sensitive": "as:sensitive",
"manuallyApprovesFollowers": "as:manuallyApprovesFollowers",
# toot
"toot": "http://joinmastodon.org/ns#",
# "featured": "toot:featured",
# schema
"schema": "http://schema.org#",
"PropertyValue": "schema:PropertyValue",
"value": "schema:value",
},
]
ME = {
"@context": DEFAULT_CTX,
"type": "Person",
"id": config.ID,
"following": config.BASE_URL + "/following",
"followers": config.BASE_URL + "/followers",
# "featured": ID + "/featured",
"inbox": config.BASE_URL + "/inbox",
"outbox": config.BASE_URL + "/outbox",
"preferredUsername": config.USERNAME,
"name": config.CONFIG.name,
"summary": config.CONFIG.summary,
"endpoints": {},
"url": config.ID,
"manuallyApprovesFollowers": False,
"attachment": [],
"icon": {
"mediaType": mimetypes.guess_type(config.CONFIG.icon_url)[0],
"type": "Image",
"url": config.CONFIG.icon_url,
},
"publicKey": {
"id": f"{config.ID}#main-key",
"owner": config.ID,
"publicKeyPem": get_pubkey_as_pem(),
},
"alsoKnownAs": [],
}
class NotAnObjectError(Exception):
def __init__(self, url: str, resp: httpx.Response | None = None) -> None:
message = f"{url} is not an AP activity"
super().__init__(message)
self.url = url
self.resp = resp
def fetch(url: str, params: dict[str, Any] | None = None) -> dict[str, Any]:
resp = httpx.get(
url,
headers={
"User-Agent": config.USER_AGENT,
"Accept": config.AP_CONTENT_TYPE,
},
params=params,
follow_redirects=True,
)
resp.raise_for_status()
try:
return resp.json()
except json.JSONDecodeError:
raise NotAnObjectError(url, resp)
def parse_collection( # noqa: C901
url: str | None = None,
payload: RawObject | None = None,
level: int = 0,
) -> list[RawObject]:
"""Resolve/fetch a `Collection`/`OrderedCollection`."""
if level > 3:
raise ValueError("recursion limit exceeded")
# Go through all the pages
out: list[RawObject] = []
if url:
payload = fetch(url)
if not payload:
raise ValueError("must at least prove a payload or an URL")
ap_type = payload.get("type")
if not ap_type:
raise ValueError(f"Missing type: {payload=}")
if level == 0 and ap_type not in ["Collection", "OrderedCollection"]:
raise ValueError(f"Unexpected type {ap_type}")
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 isinstance(payload["first"], str):
out.extend(parse_collection(url=payload["first"], level=level + 1))
else:
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, level=level + 1))
return out
while payload:
if ap_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
payload = fetch(n)
else:
raise ValueError("unexpected activity type {}".format(payload["type"]))
return out
def as_list(val: Any | list[Any]) -> list[Any]:
if isinstance(val, list):
return val
return [val]
def get_id(val: str | dict[str, Any]) -> str:
if isinstance(val, dict):
val = val["id"]
if not isinstance(val, str):
raise ValueError(f"Invalid ID type: {val}")
return val
def object_visibility(ap_activity: RawObject) -> VisibilityEnum:
to = as_list(ap_activity.get("to", []))
cc = as_list(ap_activity.get("cc", []))
if AS_PUBLIC in to:
return VisibilityEnum.PUBLIC
elif AS_PUBLIC in cc:
return VisibilityEnum.UNLISTED
else:
return VisibilityEnum.DIRECT
def get_actor_id(activity: RawObject) -> str:
if activity["type"] in ["Note", "Article", "Video"]:
attributed_to = as_list(activity["attributedTo"])
return get_id(attributed_to[0])
else:
return get_id(activity["actor"])
def wrap_object(activity: RawObject) -> RawObject:
return {
"@context": AS_CTX,
"actor": config.ID,
"to": activity.get("to", []),
"cc": activity.get("cc", []),
"id": activity["id"] + "/activity",
"object": remove_context(activity),
"published": activity["published"],
"type": "Create",
}
def wrap_object_if_needed(raw_object: RawObject) -> RawObject:
if raw_object["type"] in ["Note"]:
return wrap_object(raw_object)
return raw_object
def unwrap_activity(activity: RawObject) -> RawObject:
# FIXME(ts): other types to unwrap?
if activity["type"] == "Create":
unwrapped_object = activity["object"]
# Sanity check, ensure the wrapped object actor matches the activity
if get_actor_id(unwrapped_object) != get_actor_id(activity):
raise ValueError(
f"Unwrapped object actor does not match activity: {activity}"
)
return unwrapped_object
return activity
def remove_context(raw_object: RawObject) -> RawObject:
if "@context" not in raw_object:
return raw_object
a = dict(raw_object)
del a["@context"]
return a
def get(url: str, params: dict[str, Any] | None = None) -> dict[str, Any]:
resp = httpx.get(
url,
headers={"User-Agent": config.USER_AGENT, "Accept": config.AP_CONTENT_TYPE},
params=params,
follow_redirects=True,
auth=auth,
)
resp.raise_for_status()
return resp.json()
def post(url: str, payload: dict[str, Any]) -> httpx.Response:
resp = httpx.post(
url,
headers={
"User-Agent": config.USER_AGENT,
"Content-Type": config.AP_CONTENT_TYPE,
},
json=payload,
auth=auth,
)
resp.raise_for_status()
return resp

190
app/actor.py Normal file
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import typing
from dataclasses import dataclass
from urllib.parse import urlparse
from sqlalchemy.orm import Session
from sqlalchemy.orm import joinedload
from app import activitypub as ap
if typing.TYPE_CHECKING:
from app.models import Actor as ActorModel
def _handle(raw_actor: ap.RawObject) -> str:
ap_id = ap.get_id(raw_actor["id"])
domain = urlparse(ap_id)
if not domain.hostname:
raise ValueError(f"Invalid actor ID {ap_id}")
return f'@{raw_actor["preferredUsername"]}@{domain.hostname}' # type: ignore
class Actor:
@property
def ap_actor(self) -> ap.RawObject:
raise NotImplementedError()
@property
def ap_id(self) -> str:
return ap.get_id(self.ap_actor["id"])
@property
def name(self) -> str | None:
return self.ap_actor.get("name")
@property
def summary(self) -> str | None:
return self.ap_actor.get("summary")
@property
def url(self) -> str | None:
return self.ap_actor.get("url") or self.ap_actor["id"]
@property
def preferred_username(self) -> str:
return self.ap_actor["preferredUsername"]
@property
def handle(self) -> str:
return _handle(self.ap_actor)
@property
def ap_type(self) -> str:
raise NotImplementedError()
@property
def inbox_url(self) -> str:
return self.ap_actor["inbox"]
@property
def shared_inbox_url(self) -> str | None:
return self.ap_actor.get("endpoints", {}).get("sharedInbox")
@property
def icon_url(self) -> str | None:
return self.ap_actor.get("icon", {}).get("url")
@property
def icon_media_type(self) -> str | None:
return self.ap_actor.get("icon", {}).get("mediaType")
@property
def public_key_as_pem(self) -> str:
return self.ap_actor["publicKey"]["publicKeyPem"]
@property
def public_key_id(self) -> str:
return self.ap_actor["publicKey"]["id"]
class RemoteActor(Actor):
def __init__(self, ap_actor: ap.RawObject) -> None:
if (ap_type := ap_actor.get("type")) not in ap.ACTOR_TYPES:
raise ValueError(f"Unexpected actor type: {ap_type}")
self._ap_actor = ap_actor
self._ap_type = ap_type
@property
def ap_actor(self) -> ap.RawObject:
return self._ap_actor
@property
def ap_type(self) -> str:
return self._ap_type
@property
def is_from_db(self) -> bool:
return False
LOCAL_ACTOR = RemoteActor(ap_actor=ap.ME)
def save_actor(db: Session, ap_actor: ap.RawObject) -> "ActorModel":
from app import models
if ap_type := ap_actor.get("type") not in ap.ACTOR_TYPES:
raise ValueError(f"Invalid type {ap_type} for actor {ap_actor}")
actor = models.Actor(
ap_id=ap_actor["id"],
ap_actor=ap_actor,
ap_type=ap_actor["type"],
handle=_handle(ap_actor),
)
db.add(actor)
db.commit()
db.refresh(actor)
return actor
def fetch_actor(db: Session, actor_id: str) -> "ActorModel":
from app import models
existing_actor = (
db.query(models.Actor).filter(models.Actor.ap_id == actor_id).one_or_none()
)
if existing_actor:
return existing_actor
ap_actor = ap.get(actor_id)
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