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"""The views/routes for the `gn3.auth.authorisation.groups` package."""
import uuid
import datetime
from functools import partial
from flask import request, jsonify, Response, Blueprint, current_app
from gn3.auth import db
from gn3.auth.dictify import dictify
from gn3.auth.db_utils import with_db_connection
from .models import (
user_group, all_groups, join_requests, accept_join_request,
GroupCreationError, group_users as _group_users,
create_group as _create_group)
from ..errors import AuthorisationError
from ...authentication.users import User
from ...authentication.oauth2.resource_server import require_oauth
groups = Blueprint("groups", __name__)
@groups.route("/list", methods=["GET"])
@require_oauth("profile group")
def list_groups():
"""Return the list of groups that exist."""
with db.connection(current_app.config["AUTH_DB"]) as conn:
the_groups = all_groups(conn)
return jsonify(the_groups.maybe(
[], lambda grps: [dictify(grp) for grp in grps]))
@groups.route("/create", methods=["POST"])
@require_oauth("profile group")
def create_group():
"""Create a new group."""
with require_oauth.acquire("profile group") as the_token:
group_name=request.form.get("group_name", "").strip()
if not bool(group_name):
raise GroupCreationError("Could not create the group.")
db_uri = current_app.config["AUTH_DB"]
with db.connection(db_uri) as conn:
user = the_token.user
new_group = _create_group(
conn, group_name, user, request.form.get("group_description"))
return jsonify({
**dictify(new_group), "group_leader": dictify(user)
})
@groups.route("/members/<uuid:group_id>", methods=["GET"])
@require_oauth("profile group")
def group_members(group_id: uuid.UUID) -> Response:
"""Retrieve all the members of a group."""
with require_oauth.acquire("profile group") as the_token:# pylint: disable=[unused-variable]
db_uri = current_app.config["AUTH_DB"]
## Check that user has appropriate privileges and remove the pylint disable above
with db.connection(db_uri) as conn:
return jsonify(tuple(
dictify(user) for user in _group_users(conn, group_id)))
@groups.route("/requests/join/<uuid:group_id>", methods=["POST"])
@require_oauth("profile group")
def request_to_join(group_id: uuid.UUID) -> Response:
"""Request to join a group."""
def __request__(conn: db.DbConnection, user: User, group_id: uuid.UUID,
message: str):
with db.cursor(conn) as cursor:
group = user_group(cursor, user).maybe(# type: ignore[misc]
False, lambda grp: grp)# type: ignore[arg-type]
if group:
error = AuthorisationError(
"You cannot request to join a new group while being a "
"member of an existing group.")
error.error_code = 400
raise error
request_id = uuid.uuid4()
cursor.execute(
"INSERT INTO group_join_requests VALUES "
"(:request_id, :group_id, :user_id, :ts, :status, :msg)",
{
"request_id": str(request_id),
"group_id": str(group_id),
"user_id": str(user.user_id),
"ts": datetime.datetime.now().timestamp(),
"status": "PENDING",
"msg": message
})
return {
"request_id": request_id,
"message": "Successfully sent the join request."
}
with require_oauth.acquire("profile group") as the_token:
form = request.form
results = with_db_connection(partial(
__request__, user=the_token.user, group_id=group_id, message=form.get(
"message", "I hereby request that you add me to your group.")))
return jsonify(results)
@groups.route("/requests/join/list", methods=["GET"])
@require_oauth("profile group")
def list_join_requests() -> Response:
"""List the pending join requests."""
with require_oauth.acquire("profile group") as the_token:
return jsonify(with_db_connection(partial(
join_requests, user=the_token.user)))
@groups.route("/requests/join/accept", methods=["POST"])
@require_oauth("profile group")
def accept_join_requests() -> Response:
"""Accept a join request."""
with require_oauth.acquire("profile group") as the_token:
form = request.form
request_id = uuid.UUID(form.get("request_id"))
return jsonify(with_db_connection(partial(
accept_join_request, request_id=request_id, user=the_token.user)))
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