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130 lines
3.2 KiB
Python
130 lines
3.2 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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""" Defines the JSON structure of the protocol units used by the server to
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server protocol.
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"""
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from synapse.util.jsonobject import JsonEncodedObject
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import logging
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logger = logging.getLogger(__name__)
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class Edu(JsonEncodedObject):
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""" An Edu represents a piece of data sent from one homeserver to another.
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In comparison to Pdus, Edus are not persisted for a long time on disk, are
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not meaningful beyond a given pair of homeservers, and don't have an
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internal ID or previous references graph.
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"""
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valid_keys = [
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"origin",
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"destination",
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"edu_type",
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"content",
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]
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required_keys = [
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"edu_type",
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]
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internal_keys = [
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"origin",
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"destination",
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]
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class Transaction(JsonEncodedObject):
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""" A transaction is a list of Pdus and Edus to be sent to a remote home
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server with some extra metadata.
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Example transaction::
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{
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"origin": "foo",
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"prev_ids": ["abc", "def"],
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"pdus": [
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...
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],
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}
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"""
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valid_keys = [
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"transaction_id",
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"origin",
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"destination",
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"origin_server_ts",
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"previous_ids",
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"pdus",
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"edus",
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"transaction_id",
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"destination",
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"pdu_failures",
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]
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internal_keys = [
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"transaction_id",
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"destination",
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]
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required_keys = [
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"transaction_id",
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"origin",
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"destination",
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"origin_server_ts",
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"pdus",
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]
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def __init__(self, transaction_id=None, pdus=[], **kwargs):
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""" If we include a list of pdus then we decode then as PDU's
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automatically.
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"""
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# If there's no EDUs then remove the arg
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if "edus" in kwargs and not kwargs["edus"]:
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del kwargs["edus"]
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super(Transaction, self).__init__(
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transaction_id=transaction_id,
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pdus=pdus,
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**kwargs
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)
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@staticmethod
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def create_new(pdus, **kwargs):
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""" Used to create a new transaction. Will auto fill out
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transaction_id and origin_server_ts keys.
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"""
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if "origin_server_ts" not in kwargs:
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raise KeyError(
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"Require 'origin_server_ts' to construct a Transaction"
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)
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if "transaction_id" not in kwargs:
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raise KeyError(
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"Require 'transaction_id' to construct a Transaction"
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)
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for p in pdus:
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p.transaction_id = kwargs["transaction_id"]
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kwargs["pdus"] = [p.get_pdu_json() for p in pdus]
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return Transaction(**kwargs)
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