Add API wiring

clientapi/jsonerror/jsonerror.go

@@ -125,6 +125,18 @@ func GuestAccessForbidden(msg string) *MatrixError {
 	return &MatrixError{"M_GUEST_ACCESS_FORBIDDEN", msg}
 }
 
+// InvalidSignature is an error which is returned when the client tries
+// to upload invalid signatures.
+func InvalidSignature(msg string) *MatrixError {
+	return &MatrixError{"M_INVALID_SIGNATURE", msg}
+}
+
+// MissingParam is an error that is returned when a parameter was incorrect,
+// traditionally with cross-signing.
+func MissingParam(msg string) *MatrixError {
+	return &MatrixError{"M_MISSING_PARAM", msg}
+}
+
 type IncompatibleRoomVersionError struct {
 	RoomVersion string `json:"room_version"`
 	Error       string `json:"error"`

clientapi/routing/key_crosssigning.go

@@ -0,0 +1,89 @@
+// Copyright 2021 The Matrix.org Foundation C.I.C.
+//
+// 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 (
+	"net/http"
+
+	"github.com/matrix-org/dendrite/clientapi/httputil"
+	"github.com/matrix-org/dendrite/clientapi/jsonerror"
+	"github.com/matrix-org/dendrite/keyserver/api"
+	userapi "github.com/matrix-org/dendrite/userapi/api"
+	"github.com/matrix-org/util"
+)
+
+func UploadCrossSigningDeviceKeys(req *http.Request, keyserverAPI api.KeyInternalAPI, device *userapi.Device) util.JSONResponse {
+	uploadReq := &api.PerformUploadDeviceKeysRequest{}
+	uploadRes := &api.PerformUploadDeviceKeysResponse{}
+
+	if err := httputil.UnmarshalJSONRequest(req, &uploadReq.CrossSigningKeys); err != nil {
+		return *err
+	}
+
+	keyserverAPI.PerformUploadDeviceKeys(req.Context(), uploadReq, uploadRes)
+	if err := uploadRes.Error; err != nil {
+		switch {
+		case err.IsInvalidSignature:
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: jsonerror.InvalidSignature(err.Error()),
+			}
+		case err.IsMissingParam:
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: jsonerror.MissingParam(err.Error()),
+			}
+		default:
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: jsonerror.Unknown(err.Error()),
+			}
+		}
+	}
+
+	return util.JSONResponse{}
+}
+
+func UploadCrossSigningDeviceSignatures(req *http.Request, keyserverAPI api.KeyInternalAPI, device *userapi.Device) util.JSONResponse {
+	uploadReq := &api.PerformUploadDeviceSignaturesRequest{}
+	uploadRes := &api.PerformUploadDeviceSignaturesResponse{}
+
+	if err := httputil.UnmarshalJSONRequest(req, &uploadReq.CrossSigningSignatures); err != nil {
+		return *err
+	}
+
+	keyserverAPI.PerformUploadDeviceSignatures(req.Context(), uploadReq, uploadRes)
+	if err := uploadRes.Error; err != nil {
+		switch {
+		case err.IsInvalidSignature:
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: jsonerror.InvalidSignature(err.Error()),
+			}
+		case err.IsMissingParam:
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: jsonerror.MissingParam(err.Error()),
+			}
+		default:
+			return util.JSONResponse{
+				Code: http.StatusBadRequest,
+				JSON: jsonerror.Unknown(err.Error()),
+			}
+		}
+	}
+
+	return util.JSONResponse{}
+}

clientapi/routing/routing.go

@@ -1066,6 +1066,22 @@ func Setup(
 
 	// Deleting E2E Backup Keys
 
+	// Cross-signing device keys
+
+	postDeviceSigningKeys := httputil.MakeAuthAPI("post_device_signing_keys", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
+		return UploadCrossSigningDeviceKeys(req, keyAPI, device)
+	})
+
+	postDeviceSigningSignatures := httputil.MakeAuthAPI("post_device_signing_signatures", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
+		return UploadCrossSigningDeviceSignatures(req, keyAPI, device)
+	})
+
+	r0mux.Handle("/keys/device_signing/upload", postDeviceSigningKeys).Methods(http.MethodPost, http.MethodOptions)
+	r0mux.Handle("/keys/signatures/upload", postDeviceSigningSignatures).Methods(http.MethodPost, http.MethodOptions)
+
+	unstableMux.Handle("/keys/device_signing/upload", postDeviceSigningKeys).Methods(http.MethodPost, http.MethodOptions)
+	unstableMux.Handle("/keys/signatures/upload", postDeviceSigningSignatures).Methods(http.MethodPost, http.MethodOptions)
+
 	// Supplying a device ID is deprecated.
 	r0mux.Handle("/keys/upload/{deviceID}",
 		httputil.MakeAuthAPI("keys_upload", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {

keyserver/api/api.go

@@ -32,6 +32,8 @@ type KeyInternalAPI interface {
 	PerformUploadKeys(ctx context.Context, req *PerformUploadKeysRequest, res *PerformUploadKeysResponse)
 	// PerformClaimKeys claims one-time keys for use in pre-key messages
 	PerformClaimKeys(ctx context.Context, req *PerformClaimKeysRequest, res *PerformClaimKeysResponse)
+	PerformUploadDeviceKeys(ctx context.Context, req *PerformUploadDeviceKeysRequest, res *PerformUploadDeviceKeysResponse)
+	PerformUploadDeviceSignatures(ctx context.Context, req *PerformUploadDeviceSignaturesRequest, res *PerformUploadDeviceSignaturesResponse)
 	QueryKeys(ctx context.Context, req *QueryKeysRequest, res *QueryKeysResponse)
 	QueryKeyChanges(ctx context.Context, req *QueryKeyChangesRequest, res *QueryKeyChangesResponse)
 	QueryOneTimeKeys(ctx context.Context, req *QueryOneTimeKeysRequest, res *QueryOneTimeKeysResponse)
@@ -40,7 +42,9 @@ type KeyInternalAPI interface {
 
 // KeyError is returned if there was a problem performing/querying the server
 type KeyError struct {
-	Err string
+	Err                string `json:"error"`
+	IsInvalidSignature bool   `json:"is_invalid_signature,omitempty"` // M_INVALID_SIGNATURE
+	IsMissingParam     bool   `json:"is_missing_param,omitempty"`     // M_MISSING_PARAM
 }
 
 func (k *KeyError) Error() string {
@@ -151,6 +155,22 @@ type PerformClaimKeysResponse struct {
 	Error *KeyError
 }
 
+type PerformUploadDeviceKeysRequest struct {
+	gomatrixserverlib.CrossSigningKeys
+}
+
+type PerformUploadDeviceKeysResponse struct {
+	Error *KeyError
+}
+
+type PerformUploadDeviceSignaturesRequest struct {
+	gomatrixserverlib.CrossSigningSignatures
+}
+
+type PerformUploadDeviceSignaturesResponse struct {
+	Error *KeyError
+}
+
 type QueryKeysRequest struct {
 	// Maps user IDs to a list of devices
 	UserToDevices map[string][]string

keyserver/internal/internal.go

@@ -568,6 +568,18 @@ func (a *KeyInternalAPI) uploadOneTimeKeys(ctx context.Context, req *api.Perform
 
 }
 
+func (a *KeyInternalAPI) PerformUploadDeviceKeys(ctx context.Context, req *api.PerformUploadDeviceKeysRequest, res *api.PerformUploadDeviceKeysResponse) {
+	res.Error = &api.KeyError{
+		Err: "Not supported yet",
+	}
+}
+
+func (a *KeyInternalAPI) PerformUploadDeviceSignatures(ctx context.Context, req *api.PerformUploadDeviceSignaturesRequest, res *api.PerformUploadDeviceSignaturesResponse) {
+	res.Error = &api.KeyError{
+		Err: "Not supported yet",
+	}
+}
+
 func emitDeviceKeyChanges(producer KeyChangeProducer, existing, new []api.DeviceMessage) error {
 	// find keys in new that are not in existing
 	var keysAdded []api.DeviceMessage

keyserver/inthttp/client.go

@@ -30,6 +30,8 @@ const (
 	InputDeviceListUpdatePath         = "/keyserver/inputDeviceListUpdate"
 	PerformUploadKeysPath             = "/keyserver/performUploadKeys"
 	PerformClaimKeysPath              = "/keyserver/performClaimKeys"
+	PerformUploadDeviceKeysPath       = "/keyserver/performUploadDeviceKeys"
+	PerformUploadDeviceSignaturesPath = "/keyserver/performUploadDeviceSignatures"
 	QueryKeysPath                     = "/keyserver/queryKeys"
 	QueryKeyChangesPath               = "/keyserver/queryKeyChanges"
 	QueryOneTimeKeysPath              = "/keyserver/queryOneTimeKeys"
@@ -175,3 +177,37 @@ func (h *httpKeyInternalAPI) QueryKeyChanges(
 		}
 	}
 }
+
+func (h *httpKeyInternalAPI) PerformUploadDeviceKeys(
+	ctx context.Context,
+	request *api.PerformUploadDeviceKeysRequest,
+	response *api.PerformUploadDeviceKeysResponse,
+) {
+	span, ctx := opentracing.StartSpanFromContext(ctx, "PerformUploadDeviceKeys")
+	defer span.Finish()
+
+	apiURL := h.apiURL + PerformUploadDeviceKeysPath
+	err := httputil.PostJSON(ctx, span, h.httpClient, apiURL, request, response)
+	if err != nil {
+		response.Error = &api.KeyError{
+			Err: err.Error(),
+		}
+	}
+}
+
+func (h *httpKeyInternalAPI) PerformUploadDeviceSignatures(
+	ctx context.Context,
+	request *api.PerformUploadDeviceSignaturesRequest,
+	response *api.PerformUploadDeviceSignaturesResponse,
+) {
+	span, ctx := opentracing.StartSpanFromContext(ctx, "PerformUploadDeviceSignatures")
+	defer span.Finish()
+
+	apiURL := h.apiURL + PerformUploadDeviceSignaturesPath
+	err := httputil.PostJSON(ctx, span, h.httpClient, apiURL, request, response)
+	if err != nil {
+		response.Error = &api.KeyError{
+			Err: err.Error(),
+		}
+	}
+}

keyserver/inthttp/server.go

@@ -58,6 +58,28 @@ func AddRoutes(internalAPIMux *mux.Router, s api.KeyInternalAPI) {
 			return util.JSONResponse{Code: http.StatusOK, JSON: &response}
 		}),
 	)
+	internalAPIMux.Handle(PerformUploadDeviceKeysPath,
+		httputil.MakeInternalAPI("performUploadDeviceKeys", func(req *http.Request) util.JSONResponse {
+			request := api.PerformUploadDeviceKeysRequest{}
+			response := api.PerformUploadDeviceKeysResponse{}
+			if err := json.NewDecoder(req.Body).Decode(&request.CrossSigningKeys); err != nil {
+				return util.MessageResponse(http.StatusBadRequest, err.Error())
+			}
+			s.PerformUploadDeviceKeys(req.Context(), &request, &response)
+			return util.JSONResponse{Code: http.StatusOK, JSON: &response}
+		}),
+	)
+	internalAPIMux.Handle(PerformUploadDeviceSignaturesPath,
+		httputil.MakeInternalAPI("performUploadDeviceSignatures", func(req *http.Request) util.JSONResponse {
+			request := api.PerformUploadDeviceSignaturesRequest{}
+			response := api.PerformUploadDeviceSignaturesResponse{}
+			if err := json.NewDecoder(req.Body).Decode(&request.CrossSigningSignatures); err != nil {
+				return util.MessageResponse(http.StatusBadRequest, err.Error())
+			}
+			s.PerformUploadDeviceSignatures(req.Context(), &request, &response)
+			return util.JSONResponse{Code: http.StatusOK, JSON: &response}
+		}),
+	)
 	internalAPIMux.Handle(QueryKeysPath,
 		httputil.MakeInternalAPI("queryKeys", func(req *http.Request) util.JSONResponse {
 			request := api.QueryKeysRequest{}