78 lines
2.6 KiB
Go
78 lines
2.6 KiB
Go
// Copyright 2022 The Matrix.org Foundation C.I.C.
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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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package routing
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import (
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"encoding/json"
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"net/http"
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"github.com/matrix-org/dendrite/clientapi/jsonerror"
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"github.com/matrix-org/dendrite/relayapi/api"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/util"
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"github.com/sirupsen/logrus"
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)
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// SendTransactionToRelay implements PUT /_matrix/federation/v1/relay_txn/{txnID}/{userID}
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// This endpoint can be extracted into a separate relay server service.
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func SendTransactionToRelay(
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httpReq *http.Request,
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fedReq *gomatrixserverlib.FederationRequest,
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relayAPI api.RelayInternalAPI,
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txnID gomatrixserverlib.TransactionID,
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userID gomatrixserverlib.UserID,
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) util.JSONResponse {
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var txnEvents struct {
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PDUs []json.RawMessage `json:"pdus"`
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EDUs []gomatrixserverlib.EDU `json:"edus"`
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}
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if err := json.Unmarshal(fedReq.Content(), &txnEvents); err != nil {
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logrus.Info("The request body could not be decoded into valid JSON." + err.Error())
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: jsonerror.NotJSON("The request body could not be decoded into valid JSON." + err.Error()),
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}
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}
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// Transactions are limited in size; they can have at most 50 PDUs and 100 EDUs.
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// https://matrix.org/docs/spec/server_server/latest#transactions
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if len(txnEvents.PDUs) > 50 || len(txnEvents.EDUs) > 100 {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: jsonerror.BadJSON("max 50 pdus / 100 edus"),
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}
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}
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t := gomatrixserverlib.Transaction{}
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t.PDUs = txnEvents.PDUs
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t.EDUs = txnEvents.EDUs
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t.Origin = fedReq.Origin()
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t.TransactionID = txnID
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t.Destination = userID.Domain()
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util.GetLogger(httpReq.Context()).Warnf("Received transaction %q from %q containing %d PDUs, %d EDUs", txnID, fedReq.Origin(), len(t.PDUs), len(t.EDUs))
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err := relayAPI.PerformStoreTransaction(httpReq.Context(), t, userID)
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if err != nil {
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return util.JSONResponse{
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Code: http.StatusInternalServerError,
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JSON: jsonerror.BadJSON("could not store the transaction for forwarding"),
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}
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}
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return util.JSONResponse{Code: 200}
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}
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