mirror of
https://github.com/1f349/dendrite.git
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c7193e24d0
There are cases where a dendrite instance is unaware of a pseudo ID for a user, the user is not a member of that room. To represent this case, we currently use the 'zero' value, which is often not checked and so causes errors later down the line. To make this case more explict, and to be consistent with `QueryUserIDForSender`, this PR changes this to use a pointer (and `nil` to mean no sender ID). Signed-off-by: `Sam Wedgwood <sam@wedgwood.dev>`
699 lines
21 KiB
Go
699 lines
21 KiB
Go
// Copyright 2017 Vector Creations 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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package routing
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import (
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"context"
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"crypto/ed25519"
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"fmt"
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"net/http"
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"time"
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"github.com/getsentry/sentry-go"
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appserviceAPI "github.com/matrix-org/dendrite/appservice/api"
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"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
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"github.com/matrix-org/dendrite/clientapi/httputil"
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"github.com/matrix-org/dendrite/clientapi/threepid"
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"github.com/matrix-org/dendrite/internal/eventutil"
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"github.com/matrix-org/dendrite/roomserver/api"
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roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/dendrite/roomserver/types"
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"github.com/matrix-org/dendrite/setup/config"
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userapi "github.com/matrix-org/dendrite/userapi/api"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/gomatrixserverlib/fclient"
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"github.com/matrix-org/gomatrixserverlib/spec"
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"github.com/matrix-org/util"
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)
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func SendBan(
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req *http.Request, profileAPI userapi.ClientUserAPI, device *userapi.Device,
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roomID string, cfg *config.ClientAPI,
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rsAPI roomserverAPI.ClientRoomserverAPI, asAPI appserviceAPI.AppServiceInternalAPI,
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) util.JSONResponse {
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body, evTime, reqErr := extractRequestData(req)
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if reqErr != nil {
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return *reqErr
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}
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if body.UserID == "" {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: spec.BadJSON("missing user_id"),
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}
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}
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deviceUserID, err := spec.NewUserID(device.UserID, true)
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if err != nil {
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return util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: spec.Forbidden("You don't have permission to ban this user, bad userID"),
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}
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}
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validRoomID, err := spec.NewRoomID(roomID)
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if err != nil {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: spec.BadJSON("RoomID is invalid"),
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}
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}
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senderID, err := rsAPI.QuerySenderIDForUser(req.Context(), *validRoomID, *deviceUserID)
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if err != nil || senderID == nil {
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return util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: spec.Forbidden("You don't have permission to ban this user, unknown senderID"),
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}
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}
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errRes := checkMemberInRoom(req.Context(), rsAPI, *deviceUserID, roomID)
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if errRes != nil {
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return *errRes
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}
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pl, errRes := getPowerlevels(req, rsAPI, roomID)
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if errRes != nil {
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return *errRes
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}
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allowedToBan := pl.UserLevel(*senderID) >= pl.Ban
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if !allowedToBan {
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return util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: spec.Forbidden("You don't have permission to ban this user, power level too low."),
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}
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}
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return sendMembership(req.Context(), profileAPI, device, roomID, spec.Ban, body.Reason, cfg, body.UserID, evTime, rsAPI, asAPI)
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}
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func sendMembership(ctx context.Context, profileAPI userapi.ClientUserAPI, device *userapi.Device,
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roomID, membership, reason string, cfg *config.ClientAPI, targetUserID string, evTime time.Time,
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rsAPI roomserverAPI.ClientRoomserverAPI, asAPI appserviceAPI.AppServiceInternalAPI) util.JSONResponse {
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event, err := buildMembershipEvent(
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ctx, targetUserID, reason, profileAPI, device, membership,
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roomID, false, cfg, evTime, rsAPI, asAPI,
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)
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if err != nil {
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util.GetLogger(ctx).WithError(err).Error("buildMembershipEvent failed")
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return util.JSONResponse{
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Code: http.StatusInternalServerError,
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JSON: spec.InternalServerError{},
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}
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}
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serverName := device.UserDomain()
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if err = roomserverAPI.SendEvents(
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ctx, rsAPI,
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roomserverAPI.KindNew,
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[]*types.HeaderedEvent{event},
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device.UserDomain(),
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serverName,
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serverName,
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nil,
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false,
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); err != nil {
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util.GetLogger(ctx).WithError(err).Error("SendEvents failed")
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return util.JSONResponse{
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Code: http.StatusInternalServerError,
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JSON: spec.InternalServerError{},
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}
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}
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return util.JSONResponse{
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Code: http.StatusOK,
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JSON: struct{}{},
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}
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}
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func SendKick(
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req *http.Request, profileAPI userapi.ClientUserAPI, device *userapi.Device,
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roomID string, cfg *config.ClientAPI,
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rsAPI roomserverAPI.ClientRoomserverAPI, asAPI appserviceAPI.AppServiceInternalAPI,
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) util.JSONResponse {
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body, evTime, reqErr := extractRequestData(req)
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if reqErr != nil {
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return *reqErr
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}
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if body.UserID == "" {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: spec.BadJSON("missing user_id"),
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}
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}
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deviceUserID, err := spec.NewUserID(device.UserID, true)
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if err != nil {
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return util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: spec.Forbidden("You don't have permission to kick this user, bad userID"),
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}
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}
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validRoomID, err := spec.NewRoomID(roomID)
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if err != nil {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: spec.BadJSON("RoomID is invalid"),
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}
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}
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senderID, err := rsAPI.QuerySenderIDForUser(req.Context(), *validRoomID, *deviceUserID)
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if err != nil || senderID == nil {
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return util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: spec.Forbidden("You don't have permission to kick this user, unknown senderID"),
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}
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}
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errRes := checkMemberInRoom(req.Context(), rsAPI, *deviceUserID, roomID)
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if errRes != nil {
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return *errRes
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}
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pl, errRes := getPowerlevels(req, rsAPI, roomID)
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if errRes != nil {
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return *errRes
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}
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allowedToKick := pl.UserLevel(*senderID) >= pl.Kick
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if !allowedToKick {
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return util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: spec.Forbidden("You don't have permission to kick this user, power level too low."),
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}
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}
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bodyUserID, err := spec.NewUserID(body.UserID, true)
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if err != nil {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: spec.BadJSON("body userID is invalid"),
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}
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}
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var queryRes roomserverAPI.QueryMembershipForUserResponse
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err = rsAPI.QueryMembershipForUser(req.Context(), &roomserverAPI.QueryMembershipForUserRequest{
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RoomID: roomID,
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UserID: *bodyUserID,
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}, &queryRes)
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if err != nil {
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return util.ErrorResponse(err)
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}
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// kick is only valid if the user is not currently banned or left (that is, they are joined or invited)
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if queryRes.Membership != spec.Join && queryRes.Membership != spec.Invite {
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return util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: spec.Unknown("cannot /kick banned or left users"),
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}
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}
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// TODO: should we be using SendLeave instead?
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return sendMembership(req.Context(), profileAPI, device, roomID, spec.Leave, body.Reason, cfg, body.UserID, evTime, rsAPI, asAPI)
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}
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func SendUnban(
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req *http.Request, profileAPI userapi.ClientUserAPI, device *userapi.Device,
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roomID string, cfg *config.ClientAPI,
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rsAPI roomserverAPI.ClientRoomserverAPI, asAPI appserviceAPI.AppServiceInternalAPI,
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) util.JSONResponse {
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body, evTime, reqErr := extractRequestData(req)
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if reqErr != nil {
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return *reqErr
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}
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if body.UserID == "" {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: spec.BadJSON("missing user_id"),
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}
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}
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deviceUserID, err := spec.NewUserID(device.UserID, true)
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if err != nil {
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return util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: spec.Forbidden("You don't have permission to kick this user, bad userID"),
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}
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}
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errRes := checkMemberInRoom(req.Context(), rsAPI, *deviceUserID, roomID)
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if errRes != nil {
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return *errRes
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}
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bodyUserID, err := spec.NewUserID(body.UserID, true)
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if err != nil {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: spec.BadJSON("body userID is invalid"),
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}
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}
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var queryRes roomserverAPI.QueryMembershipForUserResponse
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err = rsAPI.QueryMembershipForUser(req.Context(), &roomserverAPI.QueryMembershipForUserRequest{
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RoomID: roomID,
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UserID: *bodyUserID,
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}, &queryRes)
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if err != nil {
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return util.ErrorResponse(err)
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}
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// unban is only valid if the user is currently banned
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if queryRes.Membership != spec.Ban {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: spec.Unknown("can only /unban users that are banned"),
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}
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}
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// TODO: should we be using SendLeave instead?
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return sendMembership(req.Context(), profileAPI, device, roomID, spec.Leave, body.Reason, cfg, body.UserID, evTime, rsAPI, asAPI)
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}
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func SendInvite(
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req *http.Request, profileAPI userapi.ClientUserAPI, device *userapi.Device,
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roomID string, cfg *config.ClientAPI,
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rsAPI roomserverAPI.ClientRoomserverAPI, asAPI appserviceAPI.AppServiceInternalAPI,
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) util.JSONResponse {
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body, evTime, reqErr := extractRequestData(req)
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if reqErr != nil {
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return *reqErr
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}
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inviteStored, jsonErrResp := checkAndProcessThreepid(
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req, device, body, cfg, rsAPI, profileAPI, roomID, evTime,
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)
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if jsonErrResp != nil {
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return *jsonErrResp
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}
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// If an invite has been stored on an identity server, it means that a
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// m.room.third_party_invite event has been emitted and that we shouldn't
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// emit a m.room.member one.
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if inviteStored {
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return util.JSONResponse{
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Code: http.StatusOK,
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JSON: struct{}{},
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}
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}
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if body.UserID == "" {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: spec.BadJSON("missing user_id"),
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}
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}
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deviceUserID, err := spec.NewUserID(device.UserID, true)
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if err != nil {
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return util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: spec.Forbidden("You don't have permission to kick this user, bad userID"),
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}
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}
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errRes := checkMemberInRoom(req.Context(), rsAPI, *deviceUserID, roomID)
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if errRes != nil {
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return *errRes
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}
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// We already received the return value, so no need to check for an error here.
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response, _ := sendInvite(req.Context(), profileAPI, device, roomID, body.UserID, body.Reason, cfg, rsAPI, asAPI, evTime)
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return response
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}
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// sendInvite sends an invitation to a user. Returns a JSONResponse and an error
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func sendInvite(
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ctx context.Context,
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profileAPI userapi.ClientUserAPI,
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device *userapi.Device,
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roomID, userID, reason string,
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cfg *config.ClientAPI,
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rsAPI roomserverAPI.ClientRoomserverAPI,
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asAPI appserviceAPI.AppServiceInternalAPI, evTime time.Time,
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) (util.JSONResponse, error) {
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validRoomID, err := spec.NewRoomID(roomID)
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if err != nil {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: spec.InvalidParam("RoomID is invalid"),
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}, err
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}
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inviter, err := spec.NewUserID(device.UserID, true)
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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: spec.InternalServerError{},
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}, err
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}
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invitee, err := spec.NewUserID(userID, true)
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if err != nil {
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: spec.InvalidParam("UserID is invalid"),
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}, err
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}
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profile, err := loadProfile(ctx, userID, cfg, profileAPI, asAPI)
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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: spec.InternalServerError{},
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}, err
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}
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identity, err := cfg.Matrix.SigningIdentityFor(device.UserDomain())
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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: spec.InternalServerError{},
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}, err
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}
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err = rsAPI.PerformInvite(ctx, &api.PerformInviteRequest{
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InviteInput: roomserverAPI.InviteInput{
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RoomID: *validRoomID,
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Inviter: *inviter,
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Invitee: *invitee,
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DisplayName: profile.DisplayName,
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AvatarURL: profile.AvatarURL,
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Reason: reason,
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IsDirect: false,
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KeyID: identity.KeyID,
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PrivateKey: identity.PrivateKey,
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EventTime: evTime,
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},
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InviteRoomState: nil, // ask the roomserver to draw up invite room state for us
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SendAsServer: string(device.UserDomain()),
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})
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switch e := err.(type) {
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case roomserverAPI.ErrInvalidID:
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return util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: spec.Unknown(e.Error()),
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}, e
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case roomserverAPI.ErrNotAllowed:
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return util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: spec.Forbidden(e.Error()),
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}, e
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case nil:
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default:
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util.GetLogger(ctx).WithError(err).Error("PerformInvite failed")
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sentry.CaptureException(err)
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return util.JSONResponse{
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Code: http.StatusInternalServerError,
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JSON: spec.InternalServerError{},
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}, err
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}
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return util.JSONResponse{
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Code: http.StatusOK,
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JSON: struct{}{},
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}, nil
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}
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func buildMembershipEventDirect(
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ctx context.Context,
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targetSenderID spec.SenderID, reason string, userDisplayName, userAvatarURL string,
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sender spec.SenderID, senderDomain spec.ServerName,
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membership, roomID string, isDirect bool,
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keyID gomatrixserverlib.KeyID, privateKey ed25519.PrivateKey, evTime time.Time,
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rsAPI roomserverAPI.ClientRoomserverAPI,
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) (*types.HeaderedEvent, error) {
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targetSenderString := string(targetSenderID)
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proto := gomatrixserverlib.ProtoEvent{
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SenderID: string(sender),
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RoomID: roomID,
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Type: "m.room.member",
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StateKey: &targetSenderString,
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}
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content := gomatrixserverlib.MemberContent{
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Membership: membership,
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DisplayName: userDisplayName,
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AvatarURL: userAvatarURL,
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Reason: reason,
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IsDirect: isDirect,
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}
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if err := proto.SetContent(content); err != nil {
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return nil, err
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}
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identity := &fclient.SigningIdentity{
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ServerName: senderDomain,
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KeyID: keyID,
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PrivateKey: privateKey,
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}
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return eventutil.QueryAndBuildEvent(ctx, &proto, identity, evTime, rsAPI, nil)
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}
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func buildMembershipEvent(
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ctx context.Context,
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targetUserID, reason string, profileAPI userapi.ClientUserAPI,
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device *userapi.Device,
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membership, roomID string, isDirect bool,
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cfg *config.ClientAPI, evTime time.Time,
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rsAPI roomserverAPI.ClientRoomserverAPI, asAPI appserviceAPI.AppServiceInternalAPI,
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) (*types.HeaderedEvent, error) {
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profile, err := loadProfile(ctx, targetUserID, cfg, profileAPI, asAPI)
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if err != nil {
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return nil, err
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}
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userID, err := spec.NewUserID(device.UserID, true)
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if err != nil {
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return nil, err
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}
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validRoomID, err := spec.NewRoomID(roomID)
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if err != nil {
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return nil, err
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}
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senderID, err := rsAPI.QuerySenderIDForUser(ctx, *validRoomID, *userID)
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if err != nil {
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return nil, err
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} else if senderID == nil {
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return nil, fmt.Errorf("no sender ID for %s in %s", *userID, *validRoomID)
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}
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targetID, err := spec.NewUserID(targetUserID, true)
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if err != nil {
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return nil, err
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}
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targetSenderID, err := rsAPI.QuerySenderIDForUser(ctx, *validRoomID, *targetID)
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if err != nil {
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return nil, err
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} else if targetSenderID == nil {
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return nil, fmt.Errorf("no sender ID for %s in %s", *targetID, *validRoomID)
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}
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identity, err := rsAPI.SigningIdentityFor(ctx, *validRoomID, *userID)
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if err != nil {
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return nil, err
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}
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return buildMembershipEventDirect(ctx, *targetSenderID, reason, profile.DisplayName, profile.AvatarURL,
|
|
*senderID, device.UserDomain(), membership, roomID, isDirect, identity.KeyID, identity.PrivateKey, evTime, rsAPI)
|
|
}
|
|
|
|
// loadProfile lookups the profile of a given user from the database and returns
|
|
// it if the user is local to this server, or returns an empty profile if not.
|
|
// Returns an error if the retrieval failed or if the first parameter isn't a
|
|
// valid Matrix ID.
|
|
func loadProfile(
|
|
ctx context.Context,
|
|
userID string,
|
|
cfg *config.ClientAPI,
|
|
profileAPI userapi.ClientUserAPI,
|
|
asAPI appserviceAPI.AppServiceInternalAPI,
|
|
) (*authtypes.Profile, error) {
|
|
_, serverName, err := gomatrixserverlib.SplitID('@', userID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var profile *authtypes.Profile
|
|
if cfg.Matrix.IsLocalServerName(serverName) {
|
|
profile, err = appserviceAPI.RetrieveUserProfile(ctx, userID, asAPI, profileAPI)
|
|
} else {
|
|
profile = &authtypes.Profile{}
|
|
}
|
|
|
|
return profile, err
|
|
}
|
|
|
|
func extractRequestData(req *http.Request) (body *threepid.MembershipRequest, evTime time.Time, resErr *util.JSONResponse) {
|
|
|
|
if reqErr := httputil.UnmarshalJSONRequest(req, &body); reqErr != nil {
|
|
resErr = reqErr
|
|
return
|
|
}
|
|
|
|
evTime, err := httputil.ParseTSParam(req)
|
|
if err != nil {
|
|
resErr = &util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.InvalidParam(err.Error()),
|
|
}
|
|
return
|
|
}
|
|
return
|
|
}
|
|
|
|
func checkAndProcessThreepid(
|
|
req *http.Request,
|
|
device *userapi.Device,
|
|
body *threepid.MembershipRequest,
|
|
cfg *config.ClientAPI,
|
|
rsAPI roomserverAPI.ClientRoomserverAPI,
|
|
profileAPI userapi.ClientUserAPI,
|
|
roomID string,
|
|
evTime time.Time,
|
|
) (inviteStored bool, errRes *util.JSONResponse) {
|
|
|
|
inviteStored, err := threepid.CheckAndProcessInvite(
|
|
req.Context(), device, body, cfg, rsAPI, profileAPI,
|
|
roomID, evTime,
|
|
)
|
|
switch e := err.(type) {
|
|
case nil:
|
|
case threepid.ErrMissingParameter:
|
|
util.GetLogger(req.Context()).WithError(err).Error("threepid.CheckAndProcessInvite failed")
|
|
return inviteStored, &util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.BadJSON(err.Error()),
|
|
}
|
|
case threepid.ErrNotTrusted:
|
|
util.GetLogger(req.Context()).WithError(err).Error("threepid.CheckAndProcessInvite failed")
|
|
return inviteStored, &util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.NotTrusted(body.IDServer),
|
|
}
|
|
case eventutil.ErrRoomNoExists:
|
|
util.GetLogger(req.Context()).WithError(err).Error("threepid.CheckAndProcessInvite failed")
|
|
return inviteStored, &util.JSONResponse{
|
|
Code: http.StatusNotFound,
|
|
JSON: spec.NotFound(err.Error()),
|
|
}
|
|
case gomatrixserverlib.BadJSONError:
|
|
util.GetLogger(req.Context()).WithError(err).Error("threepid.CheckAndProcessInvite failed")
|
|
return inviteStored, &util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.BadJSON(e.Error()),
|
|
}
|
|
default:
|
|
util.GetLogger(req.Context()).WithError(err).Error("threepid.CheckAndProcessInvite failed")
|
|
return inviteStored, &util.JSONResponse{
|
|
Code: http.StatusInternalServerError,
|
|
JSON: spec.InternalServerError{},
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
func checkMemberInRoom(ctx context.Context, rsAPI roomserverAPI.ClientRoomserverAPI, userID spec.UserID, roomID string) *util.JSONResponse {
|
|
var membershipRes roomserverAPI.QueryMembershipForUserResponse
|
|
err := rsAPI.QueryMembershipForUser(ctx, &roomserverAPI.QueryMembershipForUserRequest{
|
|
RoomID: roomID,
|
|
UserID: userID,
|
|
}, &membershipRes)
|
|
if err != nil {
|
|
util.GetLogger(ctx).WithError(err).Error("QueryMembershipForUser: could not query membership for user")
|
|
return &util.JSONResponse{
|
|
Code: http.StatusInternalServerError,
|
|
JSON: spec.InternalServerError{},
|
|
}
|
|
}
|
|
if !membershipRes.IsInRoom {
|
|
return &util.JSONResponse{
|
|
Code: http.StatusForbidden,
|
|
JSON: spec.Forbidden("user does not belong to room"),
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func SendForget(
|
|
req *http.Request, device *userapi.Device,
|
|
roomID string, rsAPI roomserverAPI.ClientRoomserverAPI,
|
|
) util.JSONResponse {
|
|
ctx := req.Context()
|
|
logger := util.GetLogger(ctx).WithField("roomID", roomID).WithField("userID", device.UserID)
|
|
|
|
deviceUserID, err := spec.NewUserID(device.UserID, true)
|
|
if err != nil {
|
|
return util.JSONResponse{
|
|
Code: http.StatusForbidden,
|
|
JSON: spec.Forbidden("You don't have permission to kick this user, bad userID"),
|
|
}
|
|
}
|
|
|
|
var membershipRes roomserverAPI.QueryMembershipForUserResponse
|
|
membershipReq := roomserverAPI.QueryMembershipForUserRequest{
|
|
RoomID: roomID,
|
|
UserID: *deviceUserID,
|
|
}
|
|
err = rsAPI.QueryMembershipForUser(ctx, &membershipReq, &membershipRes)
|
|
if err != nil {
|
|
logger.WithError(err).Error("QueryMembershipForUser: could not query membership for user")
|
|
return util.JSONResponse{
|
|
Code: http.StatusInternalServerError,
|
|
JSON: spec.InternalServerError{},
|
|
}
|
|
}
|
|
if !membershipRes.RoomExists {
|
|
return util.JSONResponse{
|
|
Code: http.StatusForbidden,
|
|
JSON: spec.Forbidden("room does not exist"),
|
|
}
|
|
}
|
|
if membershipRes.IsInRoom {
|
|
return util.JSONResponse{
|
|
Code: http.StatusBadRequest,
|
|
JSON: spec.Unknown(fmt.Sprintf("User %s is in room %s", device.UserID, roomID)),
|
|
}
|
|
}
|
|
|
|
request := roomserverAPI.PerformForgetRequest{
|
|
RoomID: roomID,
|
|
UserID: device.UserID,
|
|
}
|
|
response := roomserverAPI.PerformForgetResponse{}
|
|
if err := rsAPI.PerformForget(ctx, &request, &response); err != nil {
|
|
logger.WithError(err).Error("PerformForget: unable to forget room")
|
|
return util.JSONResponse{
|
|
Code: http.StatusInternalServerError,
|
|
JSON: spec.InternalServerError{},
|
|
}
|
|
}
|
|
return util.JSONResponse{
|
|
Code: http.StatusOK,
|
|
JSON: struct{}{},
|
|
}
|
|
}
|
|
|
|
func getPowerlevels(req *http.Request, rsAPI roomserverAPI.ClientRoomserverAPI, roomID string) (*gomatrixserverlib.PowerLevelContent, *util.JSONResponse) {
|
|
plEvent := roomserverAPI.GetStateEvent(req.Context(), rsAPI, roomID, gomatrixserverlib.StateKeyTuple{
|
|
EventType: spec.MRoomPowerLevels,
|
|
StateKey: "",
|
|
})
|
|
if plEvent == nil {
|
|
return nil, &util.JSONResponse{
|
|
Code: http.StatusForbidden,
|
|
JSON: spec.Forbidden("You don't have permission to perform this action, no power_levels event in this room."),
|
|
}
|
|
}
|
|
pl, err := plEvent.PowerLevels()
|
|
if err != nil {
|
|
return nil, &util.JSONResponse{
|
|
Code: http.StatusForbidden,
|
|
JSON: spec.Forbidden("You don't have permission to perform this action, the power_levels event for this room is malformed so auth checks cannot be performed."),
|
|
}
|
|
}
|
|
return pl, nil
|
|
}
|