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path: root/synapse/rest/appservice/v1/register.py
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# -*- coding: utf-8 -*-
# Copyright 2015 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""This module contains REST servlets to do with registration: /register"""

from base import AppServiceRestServlet, as_path_pattern
from synapse.api.errors import CodeMessageException, SynapseError

import json
import logging

logger = logging.getLogger(__name__)


class RegisterRestServlet(AppServiceRestServlet):
    """Handles AS registration with the home server.
    """

    PATTERN = as_path_pattern("/register$")

    def on_POST(self, request):
        params = _parse_json(request)

        # sanity check required params
        try:
            as_token = params["as_token"]
            as_url = params["url"]
            if (not isinstance(as_token, basestring) or
                    not isinstance(as_url, basestring)):
                raise ValueError
        except (KeyError, ValueError):
            raise SynapseError(
                400, "Missed required keys: as_token(str) / url(str)."
            )

        namespaces = {
            "users": [],
            "rooms": [],
            "aliases": []
        }

        if "namespaces" in params:
            self._parse_namespace(namespaces, params["namespaces"], "users")
            self._parse_namespace(namespaces, params["namespaces"], "rooms")
            self._parse_namespace(namespaces, params["namespaces"], "aliases")

        # TODO: pass to the appservice handler

        raise CodeMessageException(500, "Not implemented.")

    def _parse_namespace(self, target_ns, origin_ns, ns):
        if ns not in target_ns or ns not in origin_ns:
            return  # nothing to parse / map through to.

        possible_regex_list = origin_ns[ns]
        if not type(possible_regex_list) == list:
            raise SynapseError(400, "Namespace %s isn't an array." % ns)

        for regex in possible_regex_list:
            if not isinstance(regex, basestring):
                raise SynapseError(
                    400, "Regex '%s' isn't a string in namespace %s" %
                    (regex, ns)
                )

        target_ns[ns] = origin_ns[ns]


class UnregisterRestServlet(AppServiceRestServlet):
    """Handles AS registration with the home server.
    """

    PATTERN = as_path_pattern("/unregister$")

    def on_POST(self, request):
        params = _parse_json(request)
        try:
            as_token = params["as_token"]
            if not isinstance(as_token, basestring):
                raise ValueError
        except (KeyError, ValueError):
            raise SynapseError(400, "Missing required key: as_token(str)")

        # TODO: pass to the appservice handler

        raise CodeMessageException(500, "Not implemented")


def _parse_json(request):
    try:
        content = json.loads(request.content.read())
        if type(content) != dict:
            raise SynapseError(400, "Content must be a JSON object.")
        return content
    except ValueError:
        raise SynapseError(400, "Content not JSON.")


def register_servlets(hs, http_server):
    RegisterRestServlet(hs).register(http_server)
    UnregisterRestServlet(hs).register(http_server)