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// Copyright 2017 Vector Creations 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.
package routing
import (
"encoding/json"
"net/http"
"time"
"github.com/matrix-org/dendrite/clientapi/jsonerror"
"github.com/matrix-org/dendrite/internal/config"
"github.com/matrix-org/dendrite/keyserver/api"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/util"
"golang.org/x/crypto/ed25519"
)
type queryKeysRequest struct {
DeviceKeys map[string][]string `json:"device_keys"`
}
// QueryDeviceKeys returns device keys for users on this server.
// https://matrix.org/docs/spec/server_server/latest#post-matrix-federation-v1-user-keys-query
func QueryDeviceKeys(
httpReq *http.Request, request *gomatrixserverlib.FederationRequest, keyAPI api.KeyInternalAPI, thisServer gomatrixserverlib.ServerName,
) util.JSONResponse {
var qkr queryKeysRequest
err := json.Unmarshal(request.Content(), &qkr)
if err != nil {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: jsonerror.BadJSON("The request body could not be decoded into valid JSON. " + err.Error()),
}
}
// make sure we only query users on our domain
for userID := range qkr.DeviceKeys {
_, serverName, err := gomatrixserverlib.SplitID('@', userID)
if err != nil {
delete(qkr.DeviceKeys, userID)
continue // ignore invalid users
}
if serverName != thisServer {
delete(qkr.DeviceKeys, userID)
continue
}
}
var queryRes api.QueryKeysResponse
keyAPI.QueryKeys(httpReq.Context(), &api.QueryKeysRequest{
UserToDevices: qkr.DeviceKeys,
}, &queryRes)
if queryRes.Error != nil {
util.GetLogger(httpReq.Context()).WithError(queryRes.Error).Error("Failed to QueryKeys")
return jsonerror.InternalServerError()
}
return util.JSONResponse{
Code: 200,
JSON: struct {
DeviceKeys interface{} `json:"device_keys"`
}{queryRes.DeviceKeys},
}
}
type claimOTKsRequest struct {
OneTimeKeys map[string]map[string]string `json:"one_time_keys"`
}
// ClaimOneTimeKeys claims OTKs for users on this server.
// https://matrix.org/docs/spec/server_server/latest#post-matrix-federation-v1-user-keys-claim
func ClaimOneTimeKeys(
httpReq *http.Request, request *gomatrixserverlib.FederationRequest, keyAPI api.KeyInternalAPI, thisServer gomatrixserverlib.ServerName,
) util.JSONResponse {
var cor claimOTKsRequest
err := json.Unmarshal(request.Content(), &cor)
if err != nil {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: jsonerror.BadJSON("The request body could not be decoded into valid JSON. " + err.Error()),
}
}
// make sure we only claim users on our domain
for userID := range cor.OneTimeKeys {
_, serverName, err := gomatrixserverlib.SplitID('@', userID)
if err != nil {
delete(cor.OneTimeKeys, userID)
continue // ignore invalid users
}
if serverName != thisServer {
delete(cor.OneTimeKeys, userID)
continue
}
}
var claimRes api.PerformClaimKeysResponse
keyAPI.PerformClaimKeys(httpReq.Context(), &api.PerformClaimKeysRequest{
OneTimeKeys: cor.OneTimeKeys,
}, &claimRes)
if claimRes.Error != nil {
util.GetLogger(httpReq.Context()).WithError(claimRes.Error).Error("Failed to PerformClaimKeys")
return jsonerror.InternalServerError()
}
return util.JSONResponse{
Code: 200,
JSON: struct {
OneTimeKeys interface{} `json:"one_time_keys"`
}{claimRes.OneTimeKeys},
}
}
// LocalKeys returns the local keys for the server.
// See https://matrix.org/docs/spec/server_server/unstable.html#publishing-keys
func LocalKeys(cfg *config.Dendrite) util.JSONResponse {
keys, err := localKeys(cfg, time.Now().Add(cfg.Matrix.KeyValidityPeriod))
if err != nil {
return util.ErrorResponse(err)
}
return util.JSONResponse{Code: http.StatusOK, JSON: keys}
}
func localKeys(cfg *config.Dendrite, validUntil time.Time) (*gomatrixserverlib.ServerKeys, error) {
var keys gomatrixserverlib.ServerKeys
keys.ServerName = cfg.Matrix.ServerName
publicKey := cfg.Matrix.PrivateKey.Public().(ed25519.PublicKey)
keys.VerifyKeys = map[gomatrixserverlib.KeyID]gomatrixserverlib.VerifyKey{
cfg.Matrix.KeyID: {
Key: gomatrixserverlib.Base64Bytes(publicKey),
},
}
keys.TLSFingerprints = cfg.Matrix.TLSFingerPrints
keys.OldVerifyKeys = map[gomatrixserverlib.KeyID]gomatrixserverlib.OldVerifyKey{}
keys.ValidUntilTS = gomatrixserverlib.AsTimestamp(validUntil)
toSign, err := json.Marshal(keys.ServerKeyFields)
if err != nil {
return nil, err
}
keys.Raw, err = gomatrixserverlib.SignJSON(
string(cfg.Matrix.ServerName), cfg.Matrix.KeyID, cfg.Matrix.PrivateKey, toSign,
)
if err != nil {
return nil, err
}
return &keys, nil
}
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