272 lines
8 KiB
Go
272 lines
8 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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"encoding/json"
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"net/http"
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"time"
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appserviceAPI "github.com/matrix-org/dendrite/appservice/api"
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"github.com/matrix-org/dendrite/clientapi/httputil"
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"github.com/matrix-org/dendrite/internal/eventutil"
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roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/dendrite/userapi/api"
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"github.com/matrix-org/gomatrix"
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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 JoinRoomByIDOrAlias(
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req *http.Request,
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device *api.Device,
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rsAPI roomserverAPI.ClientRoomserverAPI,
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profileAPI api.ClientUserAPI,
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roomIDOrAlias string,
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) util.JSONResponse {
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// Prepare to ask the roomserver to perform the room join.
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joinReq := roomserverAPI.PerformJoinRequest{
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RoomIDOrAlias: roomIDOrAlias,
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UserID: device.UserID,
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IsGuest: device.AccountType == api.AccountTypeGuest,
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Content: map[string]interface{}{},
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}
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// Check to see if any ?server_name= query parameters were
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// given in the request.
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if serverNames, ok := req.URL.Query()["server_name"]; ok {
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for _, serverName := range serverNames {
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joinReq.ServerNames = append(
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joinReq.ServerNames,
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spec.ServerName(serverName),
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)
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}
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}
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// If content was provided in the request then include that
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// in the request. It'll get used as a part of the membership
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// event content.
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_ = httputil.UnmarshalJSONRequest(req, &joinReq.Content)
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// Work out our localpart for the client profile request.
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// Request our profile content to populate the request content with.
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profile, err := profileAPI.QueryProfile(req.Context(), device.UserID)
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switch err {
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case nil:
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joinReq.Content["displayname"] = profile.DisplayName
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joinReq.Content["avatar_url"] = profile.AvatarURL
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case appserviceAPI.ErrProfileNotExists:
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util.GetLogger(req.Context()).Error("Unable to query user profile, no profile found.")
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return util.JSONResponse{
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Code: http.StatusInternalServerError,
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JSON: spec.Unknown("Unable to query user profile, no profile found."),
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}
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default:
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}
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// Ask the roomserver to perform the join.
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done := make(chan util.JSONResponse, 1)
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go func() {
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defer close(done)
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roomID, _, err := rsAPI.PerformJoin(req.Context(), &joinReq)
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var response util.JSONResponse
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switch e := err.(type) {
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case nil: // success case
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response = util.JSONResponse{
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Code: http.StatusOK,
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// TODO: Put the response struct somewhere internal.
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JSON: struct {
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RoomID string `json:"room_id"`
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}{roomID},
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}
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case roomserverAPI.ErrInvalidID:
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response = util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: spec.Unknown(e.Error()),
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}
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case roomserverAPI.ErrNotAllowed:
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jsonErr := spec.Forbidden(e.Error())
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if device.AccountType == api.AccountTypeGuest {
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jsonErr = spec.GuestAccessForbidden(e.Error())
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}
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response = util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: jsonErr,
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}
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case *gomatrix.HTTPError: // this ensures we proxy responses over federation to the client
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response = util.JSONResponse{
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Code: e.Code,
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JSON: json.RawMessage(e.Message),
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}
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case eventutil.ErrRoomNoExists:
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response = util.JSONResponse{
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Code: http.StatusNotFound,
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JSON: spec.NotFound(e.Error()),
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}
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default:
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response = 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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done <- response
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}()
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// Wait either for the join to finish, or for us to hit a reasonable
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// timeout, at which point we'll just return a 200 to placate clients.
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timer := time.NewTimer(time.Second * 20)
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select {
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case <-timer.C:
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return util.JSONResponse{
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Code: http.StatusAccepted,
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JSON: spec.Unknown("The room join will continue in the background."),
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}
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case result := <-done:
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// Stop and drain the timer
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if !timer.Stop() {
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<-timer.C
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}
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return result
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}
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}
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type joinRoomCryptoIDsResponse struct {
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RoomID string `json:"room_id"`
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Version string `json:"room_version"`
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ViaServer string `json:"via_server"`
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PDU json.RawMessage `json:"pdu"`
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}
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func JoinRoomByIDOrAliasCryptoIDs(
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req *http.Request,
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device *api.Device,
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rsAPI roomserverAPI.ClientRoomserverAPI,
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profileAPI api.ClientUserAPI,
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roomIDOrAlias string,
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) util.JSONResponse {
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// Prepare to ask the roomserver to perform the room join.
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joinReq := roomserverAPI.PerformJoinRequest{
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RoomIDOrAlias: roomIDOrAlias,
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UserID: device.UserID,
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IsGuest: device.AccountType == api.AccountTypeGuest,
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Content: map[string]interface{}{},
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}
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// Check to see if any ?server_name= query parameters were
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// given in the request.
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if serverNames, ok := req.URL.Query()["server_name"]; ok {
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for _, serverName := range serverNames {
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joinReq.ServerNames = append(
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joinReq.ServerNames,
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spec.ServerName(serverName),
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)
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}
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}
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// If content was provided in the request then include that
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// in the request. It'll get used as a part of the membership
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// event content.
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_ = httputil.UnmarshalJSONRequest(req, &joinReq.Content)
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// Work out our localpart for the client profile request.
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// Request our profile content to populate the request content with.
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profile, err := profileAPI.QueryProfile(req.Context(), device.UserID)
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switch err {
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case nil:
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joinReq.Content["displayname"] = profile.DisplayName
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joinReq.Content["avatar_url"] = profile.AvatarURL
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case appserviceAPI.ErrProfileNotExists:
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util.GetLogger(req.Context()).Error("Unable to query user profile, no profile found.")
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return util.JSONResponse{
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Code: http.StatusInternalServerError,
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JSON: spec.Unknown("Unable to query user profile, no profile found."),
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}
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default:
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}
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// Ask the roomserver to perform the join.
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done := make(chan util.JSONResponse, 1)
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go func() {
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defer close(done)
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joinEvent, roomID, version, serverName, err := rsAPI.PerformJoinCryptoIDs(req.Context(), &joinReq)
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var response util.JSONResponse
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switch e := err.(type) {
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case nil: // success case
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response = util.JSONResponse{
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Code: http.StatusOK,
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JSON: joinRoomCryptoIDsResponse{
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RoomID: roomID,
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Version: string(version),
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ViaServer: string(serverName),
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PDU: json.RawMessage(joinEvent.JSON()),
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},
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}
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case roomserverAPI.ErrInvalidID:
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response = util.JSONResponse{
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Code: http.StatusBadRequest,
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JSON: spec.Unknown(e.Error()),
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}
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case roomserverAPI.ErrNotAllowed:
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jsonErr := spec.Forbidden(e.Error())
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if device.AccountType == api.AccountTypeGuest {
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jsonErr = spec.GuestAccessForbidden(e.Error())
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}
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response = util.JSONResponse{
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Code: http.StatusForbidden,
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JSON: jsonErr,
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}
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case *gomatrix.HTTPError: // this ensures we proxy responses over federation to the client
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response = util.JSONResponse{
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Code: e.Code,
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JSON: json.RawMessage(e.Message),
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}
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case eventutil.ErrRoomNoExists:
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response = util.JSONResponse{
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Code: http.StatusNotFound,
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JSON: spec.NotFound(e.Error()),
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}
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default:
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response = 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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done <- response
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}()
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// Wait either for the join to finish, or for us to hit a reasonable
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// timeout, at which point we'll just return a 200 to placate clients.
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timer := time.NewTimer(time.Second * 20)
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select {
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case <-timer.C:
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return util.JSONResponse{
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Code: http.StatusRequestTimeout,
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JSON: spec.Unknown("Failed creating join event with the remote server."),
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}
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case result := <-done:
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// Stop and drain the timer
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if !timer.Stop() {
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<-timer.C
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}
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return result
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}
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}
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