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use go module for dependencies (#594)
This commit is contained in:
ruben
Brendan Abolivier
parent
4d588f7008
commit
74827428bd
6109 changed files with 216 additions and 1114821 deletions
285
roomserver/alias/alias.go
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285
roomserver/alias/alias.go
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// 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 alias
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import (
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"context"
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"encoding/json"
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"fmt"
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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/common"
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"github.com/matrix-org/dendrite/common/config"
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roomserverAPI "github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/util"
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)
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// RoomserverAliasAPIDatabase has the storage APIs needed to implement the alias API.
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type RoomserverAliasAPIDatabase interface {
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// Save a given room alias with the room ID it refers to.
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// Returns an error if there was a problem talking to the database.
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SetRoomAlias(ctx context.Context, alias string, roomID string) error
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// Look up the room ID a given alias refers to.
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// Returns an error if there was a problem talking to the database.
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GetRoomIDForAlias(ctx context.Context, alias string) (string, error)
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// Look up all aliases referring to a given room ID.
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// Returns an error if there was a problem talking to the database.
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GetAliasesForRoomID(ctx context.Context, roomID string) ([]string, error)
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// Remove a given room alias.
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// Returns an error if there was a problem talking to the database.
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RemoveRoomAlias(ctx context.Context, alias string) error
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}
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// RoomserverAliasAPI is an implementation of alias.RoomserverAliasAPI
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type RoomserverAliasAPI struct {
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DB RoomserverAliasAPIDatabase
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Cfg *config.Dendrite
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InputAPI roomserverAPI.RoomserverInputAPI
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QueryAPI roomserverAPI.RoomserverQueryAPI
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AppserviceAPI appserviceAPI.AppServiceQueryAPI
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}
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// SetRoomAlias implements alias.RoomserverAliasAPI
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func (r *RoomserverAliasAPI) SetRoomAlias(
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ctx context.Context,
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request *roomserverAPI.SetRoomAliasRequest,
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response *roomserverAPI.SetRoomAliasResponse,
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) error {
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// Check if the alias isn't already referring to a room
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roomID, err := r.DB.GetRoomIDForAlias(ctx, request.Alias)
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if err != nil {
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return err
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}
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if len(roomID) > 0 {
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// If the alias already exists, stop the process
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response.AliasExists = true
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return nil
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}
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response.AliasExists = false
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// Save the new alias
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if err := r.DB.SetRoomAlias(ctx, request.Alias, request.RoomID); err != nil {
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return err
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}
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// Send a m.room.aliases event with the updated list of aliases for this room
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// At this point we've already committed the alias to the database so we
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// shouldn't cancel this request.
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// TODO: Ensure that we send unsent events when if server restarts.
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return r.sendUpdatedAliasesEvent(context.TODO(), request.UserID, request.RoomID)
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}
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// GetRoomIDForAlias implements alias.RoomserverAliasAPI
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func (r *RoomserverAliasAPI) GetRoomIDForAlias(
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ctx context.Context,
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request *roomserverAPI.GetRoomIDForAliasRequest,
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response *roomserverAPI.GetRoomIDForAliasResponse,
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) error {
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// Look up the room ID in the database
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roomID, err := r.DB.GetRoomIDForAlias(ctx, request.Alias)
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if err != nil {
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return err
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}
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// No rooms found locally, try our application services by making a call to
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// the appservice component
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aliasReq := appserviceAPI.RoomAliasExistsRequest{Alias: request.Alias}
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var aliasResp appserviceAPI.RoomAliasExistsResponse
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if err = r.AppserviceAPI.RoomAliasExists(ctx, &aliasReq, &aliasResp); err != nil {
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return err
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}
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response.RoomID = roomID
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return nil
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}
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// GetAliasesForRoomID implements alias.RoomserverAliasAPI
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func (r *RoomserverAliasAPI) GetAliasesForRoomID(
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ctx context.Context,
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request *roomserverAPI.GetAliasesForRoomIDRequest,
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response *roomserverAPI.GetAliasesForRoomIDResponse,
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) error {
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// Look up the aliases in the database for the given RoomID
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aliases, err := r.DB.GetAliasesForRoomID(ctx, request.RoomID)
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if err != nil {
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return err
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}
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response.Aliases = aliases
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return nil
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}
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// RemoveRoomAlias implements alias.RoomserverAliasAPI
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func (r *RoomserverAliasAPI) RemoveRoomAlias(
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ctx context.Context,
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request *roomserverAPI.RemoveRoomAliasRequest,
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response *roomserverAPI.RemoveRoomAliasResponse,
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) error {
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// Look up the room ID in the database
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roomID, err := r.DB.GetRoomIDForAlias(ctx, request.Alias)
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if err != nil {
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return err
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}
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// Remove the dalias from the database
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if err := r.DB.RemoveRoomAlias(ctx, request.Alias); err != nil {
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return err
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}
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// Send an updated m.room.aliases event
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// At this point we've already committed the alias to the database so we
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// shouldn't cancel this request.
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// TODO: Ensure that we send unsent events when if server restarts.
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return r.sendUpdatedAliasesEvent(context.TODO(), request.UserID, roomID)
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}
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type roomAliasesContent struct {
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Aliases []string `json:"aliases"`
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}
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// Build the updated m.room.aliases event to send to the room after addition or
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// removal of an alias
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func (r *RoomserverAliasAPI) sendUpdatedAliasesEvent(
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ctx context.Context, userID string, roomID string,
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) error {
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serverName := string(r.Cfg.Matrix.ServerName)
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builder := gomatrixserverlib.EventBuilder{
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Sender: userID,
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RoomID: roomID,
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Type: "m.room.aliases",
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StateKey: &serverName,
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}
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// Retrieve the updated list of aliases, marhal it and set it as the
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// event's content
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aliases, err := r.DB.GetAliasesForRoomID(ctx, roomID)
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if err != nil {
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return err
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}
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content := roomAliasesContent{Aliases: aliases}
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rawContent, err := json.Marshal(content)
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if err != nil {
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return err
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}
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err = builder.SetContent(json.RawMessage(rawContent))
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if err != nil {
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return err
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}
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// Get needed state events and depth
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eventsNeeded, err := gomatrixserverlib.StateNeededForEventBuilder(&builder)
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if err != nil {
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return err
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}
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req := roomserverAPI.QueryLatestEventsAndStateRequest{
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RoomID: roomID,
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StateToFetch: eventsNeeded.Tuples(),
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}
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var res roomserverAPI.QueryLatestEventsAndStateResponse
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if err = r.QueryAPI.QueryLatestEventsAndState(ctx, &req, &res); err != nil {
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return err
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}
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builder.Depth = res.Depth
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builder.PrevEvents = res.LatestEvents
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// Add auth events
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authEvents := gomatrixserverlib.NewAuthEvents(nil)
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for i := range res.StateEvents {
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err = authEvents.AddEvent(&res.StateEvents[i])
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if err != nil {
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return err
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}
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}
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refs, err := eventsNeeded.AuthEventReferences(&authEvents)
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if err != nil {
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return err
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}
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builder.AuthEvents = refs
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// Build the event
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eventID := fmt.Sprintf("$%s:%s", util.RandomString(16), r.Cfg.Matrix.ServerName)
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now := time.Now()
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event, err := builder.Build(
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eventID, now, r.Cfg.Matrix.ServerName, r.Cfg.Matrix.KeyID, r.Cfg.Matrix.PrivateKey,
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)
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if err != nil {
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return err
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}
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// Create the request
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ire := roomserverAPI.InputRoomEvent{
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Kind: roomserverAPI.KindNew,
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Event: event,
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AuthEventIDs: event.AuthEventIDs(),
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SendAsServer: serverName,
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}
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inputReq := roomserverAPI.InputRoomEventsRequest{
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InputRoomEvents: []roomserverAPI.InputRoomEvent{ire},
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}
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var inputRes roomserverAPI.InputRoomEventsResponse
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// Send the request
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return r.InputAPI.InputRoomEvents(ctx, &inputReq, &inputRes)
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}
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// SetupHTTP adds the RoomserverAliasAPI handlers to the http.ServeMux.
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func (r *RoomserverAliasAPI) SetupHTTP(servMux *http.ServeMux) {
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servMux.Handle(
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roomserverAPI.RoomserverSetRoomAliasPath,
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common.MakeInternalAPI("setRoomAlias", func(req *http.Request) util.JSONResponse {
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var request roomserverAPI.SetRoomAliasRequest
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var response roomserverAPI.SetRoomAliasResponse
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if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
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return util.ErrorResponse(err)
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}
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if err := r.SetRoomAlias(req.Context(), &request, &response); err != nil {
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return util.ErrorResponse(err)
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}
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return util.JSONResponse{Code: http.StatusOK, JSON: &response}
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}),
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)
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servMux.Handle(
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roomserverAPI.RoomserverGetRoomIDForAliasPath,
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common.MakeInternalAPI("GetRoomIDForAlias", func(req *http.Request) util.JSONResponse {
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var request roomserverAPI.GetRoomIDForAliasRequest
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var response roomserverAPI.GetRoomIDForAliasResponse
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if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
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return util.ErrorResponse(err)
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}
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if err := r.GetRoomIDForAlias(req.Context(), &request, &response); err != nil {
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return util.ErrorResponse(err)
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}
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return util.JSONResponse{Code: http.StatusOK, JSON: &response}
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}),
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)
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servMux.Handle(
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roomserverAPI.RoomserverRemoveRoomAliasPath,
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common.MakeInternalAPI("removeRoomAlias", func(req *http.Request) util.JSONResponse {
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var request roomserverAPI.RemoveRoomAliasRequest
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var response roomserverAPI.RemoveRoomAliasResponse
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if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
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return util.ErrorResponse(err)
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}
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if err := r.RemoveRoomAlias(req.Context(), &request, &response); err != nil {
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return util.ErrorResponse(err)
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}
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return util.JSONResponse{Code: http.StatusOK, JSON: &response}
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}),
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)
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}
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