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Use gomatrixserverlib.StateKeyTuple and helper functions for auth (#44)
* Update gomatrixserverib dep * Use helper functions when creating rooms * Use gomatrixserverlib.StateKeyTuple
This commit is contained in:
parent
44c63254a7
commit
346f5d6334
@ -14,7 +14,6 @@ import (
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"github.com/matrix-org/dendrite/clientapi/httputil"
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"github.com/matrix-org/dendrite/clientapi/jsonerror"
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"github.com/matrix-org/dendrite/clientapi/producers"
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"github.com/matrix-org/dendrite/common"
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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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@ -112,8 +111,6 @@ func createRoom(req *http.Request, cfg config.ClientAPI, roomID string, producer
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"roomID": roomID,
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}).Info("Creating new room")
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// Remember events we've built and key off the state tuple so we can look them up easily when filling in auth_events
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builtEventMap := make(map[common.StateKeyTuple]*gomatrixserverlib.Event)
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var builtEvents []gomatrixserverlib.Event
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// send events into the room in order of:
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@ -165,7 +162,7 @@ func createRoom(req *http.Request, cfg config.ClientAPI, roomID string, producer
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if i > 0 {
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builder.PrevEvents = []gomatrixserverlib.EventReference{builtEvents[i-1].EventReference()}
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}
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ev, err := buildEvent(&builder, builtEventMap, cfg)
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ev, err := buildEvent(&builder, &authEvents, cfg)
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if err != nil {
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return httputil.LogThenError(req, err)
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}
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@ -175,7 +172,6 @@ func createRoom(req *http.Request, cfg config.ClientAPI, roomID string, producer
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}
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// Add the event to the list of auth events
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builtEventMap[common.StateKeyTuple{e.Type, e.StateKey}] = ev
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builtEvents = append(builtEvents, *ev)
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authEvents.AddEvent(ev)
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}
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@ -193,14 +189,18 @@ func createRoom(req *http.Request, cfg config.ClientAPI, roomID string, producer
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// buildEvent fills out auth_events for the builder then builds the event
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func buildEvent(builder *gomatrixserverlib.EventBuilder,
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events map[common.StateKeyTuple]*gomatrixserverlib.Event,
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provider gomatrixserverlib.AuthEventProvider,
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cfg config.ClientAPI) (*gomatrixserverlib.Event, error) {
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eventsNeeded, err := gomatrixserverlib.StateNeededForEventBuilder(builder)
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if err != nil {
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return nil, err
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}
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builder.AuthEvents = authEventsFromStateNeeded(eventsNeeded, events)
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refs, err := eventsNeeded.AuthEventReferences(provider)
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if err != nil {
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return nil, err
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}
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builder.AuthEvents = refs
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eventID := fmt.Sprintf("$%s:%s", util.RandomString(16), cfg.ServerName)
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now := time.Now()
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event, err := builder.Build(eventID, now, cfg.ServerName, cfg.KeyID, cfg.PrivateKey)
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@ -209,41 +209,3 @@ func buildEvent(builder *gomatrixserverlib.EventBuilder,
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}
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return &event, nil
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}
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func authEventsFromStateNeeded(eventsNeeded gomatrixserverlib.StateNeeded,
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events map[common.StateKeyTuple]*gomatrixserverlib.Event) (authEvents []gomatrixserverlib.EventReference) {
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// These events are only "needed" if they exist, so if they don't exist we can safely ignore them.
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if eventsNeeded.Create {
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ev := events[common.StateKeyTuple{"m.room.create", ""}]
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if ev != nil {
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authEvents = append(authEvents, ev.EventReference())
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}
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}
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if eventsNeeded.JoinRules {
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ev := events[common.StateKeyTuple{"m.room.join_rules", ""}]
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if ev != nil {
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authEvents = append(authEvents, ev.EventReference())
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}
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}
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if eventsNeeded.PowerLevels {
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ev := events[common.StateKeyTuple{"m.room.power_levels", ""}]
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if ev != nil {
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authEvents = append(authEvents, ev.EventReference())
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}
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}
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for _, userID := range eventsNeeded.Member {
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ev := events[common.StateKeyTuple{"m.room.member", userID}]
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if ev != nil {
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authEvents = append(authEvents, ev.EventReference())
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}
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}
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for _, token := range eventsNeeded.ThirdPartyInvite {
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ev := events[common.StateKeyTuple{"m.room.member", token}]
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if ev != nil {
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authEvents = append(authEvents, ev.EventReference())
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}
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}
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return
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}
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@ -11,7 +11,6 @@ import (
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"github.com/matrix-org/dendrite/clientapi/httputil"
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"github.com/matrix-org/dendrite/clientapi/jsonerror"
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"github.com/matrix-org/dendrite/clientapi/producers"
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"github.com/matrix-org/dendrite/common"
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"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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@ -48,7 +47,7 @@ func SendEvent(req *http.Request, roomID, eventType, txnID string, stateKey *str
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builder.SetContent(r)
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// work out what will be required in order to send this event
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requiredStateEvents, err := stateNeeded(&builder)
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needed, err := gomatrixserverlib.StateNeededForEventBuilder(&builder)
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if err != nil {
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return httputil.LogThenError(req, err)
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}
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@ -56,7 +55,7 @@ func SendEvent(req *http.Request, roomID, eventType, txnID string, stateKey *str
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// Ask the roomserver for information about this room
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queryReq := api.QueryLatestEventsAndStateRequest{
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RoomID: roomID,
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StateToFetch: requiredStateEvents,
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StateToFetch: needed.Tuples(),
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}
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var queryRes api.QueryLatestEventsAndStateResponse
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if queryErr := queryAPI.QueryLatestEventsAndState(&queryReq, &queryRes); queryErr != nil {
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@ -105,26 +104,3 @@ func SendEvent(req *http.Request, roomID, eventType, txnID string, stateKey *str
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JSON: sendEventResponse{e.EventID()},
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}
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}
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func stateNeeded(builder *gomatrixserverlib.EventBuilder) (requiredStateEvents []common.StateKeyTuple, err error) {
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authEvents, err := gomatrixserverlib.StateNeededForEventBuilder(builder)
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if err != nil {
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return
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}
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if authEvents.Create {
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requiredStateEvents = append(requiredStateEvents, common.StateKeyTuple{"m.room.create", ""})
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}
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if authEvents.JoinRules {
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requiredStateEvents = append(requiredStateEvents, common.StateKeyTuple{"m.room.join_rules", ""})
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}
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if authEvents.PowerLevels {
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requiredStateEvents = append(requiredStateEvents, common.StateKeyTuple{"m.room.power_levels", ""})
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}
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for _, userID := range authEvents.Member {
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requiredStateEvents = append(requiredStateEvents, common.StateKeyTuple{"m.room.member", userID})
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}
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for _, token := range authEvents.ThirdPartyInvite {
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requiredStateEvents = append(requiredStateEvents, common.StateKeyTuple{"m.room.third_party_invite", token})
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}
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return
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}
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@ -1,13 +1 @@
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package common
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// StateKeyTuple is a pair of an event type and state_key.
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// This is typically used as a key in a map.
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type StateKeyTuple struct {
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// The "type" key of a matrix event.
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EventType string
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// The "state_key" of a matrix event.
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// The empty string is a legitimate value for the "state_key" in matrix
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// so take care to initialise this field lest you accidentally request a
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// "state_key" with the go default of the empty string.
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EventStateKey string
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}
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@ -4,7 +4,6 @@ import (
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"bytes"
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"encoding/json"
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"fmt"
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"github.com/matrix-org/dendrite/common"
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"github.com/matrix-org/gomatrixserverlib"
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"net/http"
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)
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@ -15,7 +14,7 @@ type QueryLatestEventsAndStateRequest struct {
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RoomID string
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// The state key tuples to fetch from the room current state.
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// If this list is empty or nil then no state events are returned.
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StateToFetch []common.StateKeyTuple
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StateToFetch []gomatrixserverlib.StateKeyTuple
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}
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// QueryLatestEventsAndStateResponse is a response to QueryLatestEventsAndState
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@ -2,7 +2,6 @@ package main
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import (
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"fmt"
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"github.com/matrix-org/dendrite/common"
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"github.com/matrix-org/dendrite/roomserver/api"
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"github.com/matrix-org/gomatrixserverlib"
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"os"
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@ -368,7 +367,7 @@ func main() {
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if err := q.QueryLatestEventsAndState(
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&api.QueryLatestEventsAndStateRequest{
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RoomID: "!HCXfdvrfksxuYnIFiJ:matrix.org",
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StateToFetch: []common.StateKeyTuple{
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StateToFetch: []gomatrixserverlib.StateKeyTuple{
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{"m.room.member", "@richvdh:matrix.org"},
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},
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},
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@ -4,8 +4,8 @@ package state
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import (
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"fmt"
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"github.com/matrix-org/dendrite/common"
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"github.com/matrix-org/dendrite/roomserver/types"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/util"
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"sort"
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)
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@ -200,12 +200,12 @@ func DifferenceBetweeenStateSnapshots(db RoomStateDatabase, oldStateNID, newStat
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// stringTuplesToNumericTuples converts the string state key tuples into numeric IDs
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// If there isn't a numeric ID for either the event type or the event state key then the tuple is discarded.
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// Returns an error if there was a problem talking to the database.
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func stringTuplesToNumericTuples(db RoomStateDatabase, stringTuples []common.StateKeyTuple) ([]types.StateKeyTuple, error) {
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func stringTuplesToNumericTuples(db RoomStateDatabase, stringTuples []gomatrixserverlib.StateKeyTuple) ([]types.StateKeyTuple, error) {
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eventTypes := make([]string, len(stringTuples))
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stateKeys := make([]string, len(stringTuples))
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for i := range stringTuples {
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eventTypes[i] = stringTuples[i].EventType
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stateKeys[i] = stringTuples[i].EventStateKey
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stateKeys[i] = stringTuples[i].StateKey
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}
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eventTypes = util.UniqueStrings(eventTypes)
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eventTypeMap, err := db.EventTypeNIDs(eventTypes)
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@ -223,7 +223,7 @@ func stringTuplesToNumericTuples(db RoomStateDatabase, stringTuples []common.Sta
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var numericTuple types.StateKeyTuple
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var ok1, ok2 bool
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numericTuple.EventTypeNID, ok1 = eventTypeMap[stringTuple.EventType]
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numericTuple.EventStateKeyNID, ok2 = stateKeyMap[stringTuple.EventStateKey]
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numericTuple.EventStateKeyNID, ok2 = stateKeyMap[stringTuple.StateKey]
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// Discard the tuple if there wasn't a numeric ID for either the event type or the state key.
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if ok1 && ok2 {
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result = append(result, numericTuple)
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@ -239,7 +239,7 @@ func stringTuplesToNumericTuples(db RoomStateDatabase, stringTuples []common.Sta
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// This is typically the state before an event or the current state of a room.
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// Returns a sorted list of state entries or an error if there was a problem talking to the database.
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func LoadStateAtSnapshotForStringTuples(
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db RoomStateDatabase, stateNID types.StateSnapshotNID, stateKeyTuples []common.StateKeyTuple,
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db RoomStateDatabase, stateNID types.StateSnapshotNID, stateKeyTuples []gomatrixserverlib.StateKeyTuple,
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) ([]types.StateEntry, error) {
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numericTuples, err := stringTuplesToNumericTuples(db, stateKeyTuples)
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if err != nil {
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4
vendor/manifest
vendored
4
vendor/manifest
vendored
@ -92,7 +92,7 @@
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{
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"importpath": "github.com/matrix-org/gomatrixserverlib",
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"repository": "https://github.com/matrix-org/gomatrixserverlib",
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"revision": "775bc0b4341689c9fbb573008c3095495738f092",
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"revision": "e757e4f7f675c7356d4b2953059718f1b4598a08",
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"branch": "master"
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},
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{
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@ -206,4 +206,4 @@
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"branch": "master"
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}
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]
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}
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}
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@ -22,6 +22,18 @@ import (
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"time"
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)
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// A StateKeyTuple is the combination of an event type and an event state key.
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// It is often used as a key in maps.
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type StateKeyTuple struct {
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// The "type" key of a matrix event.
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EventType string
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// The "state_key" of a matrix event.
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// The empty string is a legitimate value for the "state_key" in matrix
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// so take care to initialise this field lest you accidentally request a
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// "state_key" with the go default of the empty string.
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StateKey string
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}
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// An EventReference is a reference to a matrix event.
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type EventReference struct {
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// The event ID of the event.
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@ -44,6 +44,69 @@ type StateNeeded struct {
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ThirdPartyInvite []string
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}
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// Tuples returns the needed state key tuples for performing auth on an event.
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func (s StateNeeded) Tuples() (res []StateKeyTuple) {
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if s.Create {
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res = append(res, StateKeyTuple{"m.room.create", ""})
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}
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if s.JoinRules {
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res = append(res, StateKeyTuple{"m.room.join_rules", ""})
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}
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if s.PowerLevels {
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res = append(res, StateKeyTuple{"m.room.power_levels", ""})
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}
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for _, userID := range s.Member {
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res = append(res, StateKeyTuple{"m.room.member", userID})
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}
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for _, token := range s.ThirdPartyInvite {
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res = append(res, StateKeyTuple{"m.room.third_party_invite", token})
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}
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return
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}
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// AuthEventReferences returns the auth_events references for the StateNeeded. Returns an error if the
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// provider returns an error. If an event is missing from the provider but is required in StateNeeded, it
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// is skipped over: no error is returned.
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func (s StateNeeded) AuthEventReferences(provider AuthEventProvider) (refs []EventReference, err error) {
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var e *Event
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if s.Create {
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if e, err = provider.Create(); err != nil {
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return
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} else if e != nil {
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refs = append(refs, e.EventReference())
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}
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}
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if s.JoinRules {
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if e, err = provider.JoinRules(); err != nil {
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return
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} else if e != nil {
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refs = append(refs, e.EventReference())
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}
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}
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if s.PowerLevels {
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if e, err = provider.PowerLevels(); err != nil {
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return
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} else if e != nil {
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refs = append(refs, e.EventReference())
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}
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}
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for _, userID := range s.Member {
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if e, err = provider.Member(userID); err != nil {
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return
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} else if e != nil {
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refs = append(refs, e.EventReference())
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}
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}
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for _, token := range s.ThirdPartyInvite {
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if e, err = provider.ThirdPartyInvite(token); err != nil {
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return
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} else if e != nil {
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refs = append(refs, e.EventReference())
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}
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}
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return
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}
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// StateNeededForEventBuilder returns the event types and state_keys needed to authenticate the
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// event being built. These events should be put under 'auth_events' for the event being built.
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// Returns an error if the state needed could not be calculated with the given builder, e.g
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@ -175,14 +238,9 @@ type AuthEventProvider interface {
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ThirdPartyInvite(stateKey string) (*Event, error)
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}
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type stateKeyTuple struct {
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Type string
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StateKey string
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}
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// AuthEvents is an implementation of AuthEventProvider backed by a map.
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type AuthEvents struct {
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events map[stateKeyTuple]*Event
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events map[StateKeyTuple]*Event
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}
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// AddEvent adds an event to the provider. If an event already existed for the (type, state_key) then
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@ -191,39 +249,39 @@ func (a *AuthEvents) AddEvent(event *Event) error {
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if event.StateKey() == nil {
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return fmt.Errorf("AddEvent: event %s does not have a state key", event.Type())
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}
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a.events[stateKeyTuple{event.Type(), *event.StateKey()}] = event
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a.events[StateKeyTuple{event.Type(), *event.StateKey()}] = event
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return nil
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}
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// Create implements AuthEventProvider
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func (a *AuthEvents) Create() (*Event, error) {
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return a.events[stateKeyTuple{"m.room.create", ""}], nil
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return a.events[StateKeyTuple{"m.room.create", ""}], nil
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}
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// JoinRules implements AuthEventProvider
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func (a *AuthEvents) JoinRules() (*Event, error) {
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return a.events[stateKeyTuple{"m.room.join_rules", ""}], nil
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return a.events[StateKeyTuple{"m.room.join_rules", ""}], nil
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}
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// PowerLevels implements AuthEventProvider
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func (a *AuthEvents) PowerLevels() (*Event, error) {
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return a.events[stateKeyTuple{"m.room.power_levels", ""}], nil
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return a.events[StateKeyTuple{"m.room.power_levels", ""}], nil
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}
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// Member implements AuthEventProvider
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func (a *AuthEvents) Member(stateKey string) (*Event, error) {
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return a.events[stateKeyTuple{"m.room.member", stateKey}], nil
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return a.events[StateKeyTuple{"m.room.member", stateKey}], nil
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}
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// ThirdPartyInvite implements AuthEventProvider
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func (a *AuthEvents) ThirdPartyInvite(stateKey string) (*Event, error) {
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return a.events[stateKeyTuple{"m.room.third_party_invite", stateKey}], nil
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return a.events[StateKeyTuple{"m.room.third_party_invite", stateKey}], nil
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}
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// NewAuthEvents returns an AuthEventProvider backed by the given events. New events can be added by
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// calling AddEvent().
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func NewAuthEvents(events []*Event) AuthEvents {
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a := AuthEvents{make(map[stateKeyTuple]*Event)}
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a := AuthEvents{make(map[StateKeyTuple]*Event)}
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for _, e := range events {
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a.AddEvent(e)
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}
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