mirror of
https://github.com/hoernschen/dendrite.git
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Encode v3 event IDs correctly (#1090)
This commit is contained in:
Kegsay
GitHub
parent
8c3f51d624
commit
feb32ba365
3 changed files with 39 additions and 77 deletions
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@ -37,6 +37,9 @@ const (
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)
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// Setup registers HTTP handlers with the given ServeMux.
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// The provided publicAPIMux MUST have `UseEncodedPath()` enabled or else routes will incorrectly
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// path unescape twice (once from the router, once from MakeFedAPI). We need to have this enabled
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// so we can decode paths like foo/bar%2Fbaz as [foo, bar/baz] - by default it will decode to [foo, bar, baz]
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//
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// Due to Setup being used to call many other functions, a gocyclo nolint is
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// applied:
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@ -76,11 +79,7 @@ func Setup(
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v1fedmux.Handle("/send/{txnID}", internal.MakeFedAPI(
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"federation_send", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars, err := internal.URLDecodeMapValues(mux.Vars(httpReq))
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if err != nil {
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return util.ErrorResponse(err)
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}
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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return Send(
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httpReq, request, gomatrixserverlib.TransactionID(vars["txnID"]),
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cfg, rsAPI, producer, eduProducer, keys, federation,
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@ -90,11 +89,7 @@ func Setup(
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v2fedmux.Handle("/invite/{roomID}/{eventID}", internal.MakeFedAPI(
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"federation_invite", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars, err := internal.URLDecodeMapValues(mux.Vars(httpReq))
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if err != nil {
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return util.ErrorResponse(err)
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}
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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return Invite(
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httpReq, request, vars["roomID"], vars["eventID"],
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cfg, producer, keys,
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@ -110,11 +105,7 @@ func Setup(
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v1fedmux.Handle("/exchange_third_party_invite/{roomID}", internal.MakeFedAPI(
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"exchange_third_party_invite", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars, err := internal.URLDecodeMapValues(mux.Vars(httpReq))
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if err != nil {
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return util.ErrorResponse(err)
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}
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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return ExchangeThirdPartyInvite(
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httpReq, request, vars["roomID"], rsAPI, cfg, federation, producer,
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)
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@ -123,11 +114,7 @@ func Setup(
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v1fedmux.Handle("/event/{eventID}", internal.MakeFedAPI(
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"federation_get_event", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars, err := internal.URLDecodeMapValues(mux.Vars(httpReq))
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if err != nil {
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return util.ErrorResponse(err)
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}
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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return GetEvent(
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httpReq.Context(), request, rsAPI, vars["eventID"], cfg.Matrix.ServerName,
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)
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@ -136,11 +123,7 @@ func Setup(
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v1fedmux.Handle("/state/{roomID}", internal.MakeFedAPI(
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"federation_get_state", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars, err := internal.URLDecodeMapValues(mux.Vars(httpReq))
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if err != nil {
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return util.ErrorResponse(err)
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}
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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return GetState(
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httpReq.Context(), request, rsAPI, vars["roomID"],
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)
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@ -149,11 +132,7 @@ func Setup(
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v1fedmux.Handle("/state_ids/{roomID}", internal.MakeFedAPI(
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"federation_get_state_ids", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars, err := internal.URLDecodeMapValues(mux.Vars(httpReq))
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if err != nil {
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return util.ErrorResponse(err)
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}
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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return GetStateIDs(
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httpReq.Context(), request, rsAPI, vars["roomID"],
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)
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@ -162,8 +141,7 @@ func Setup(
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v1fedmux.Handle("/event_auth/{roomID}/{eventID}", internal.MakeFedAPI(
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"federation_get_event_auth", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars := mux.Vars(httpReq)
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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return GetEventAuth(
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httpReq.Context(), request, rsAPI, vars["roomID"], vars["eventID"],
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)
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@ -172,7 +150,7 @@ func Setup(
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v1fedmux.Handle("/query/directory", internal.MakeFedAPI(
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"federation_query_room_alias", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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return RoomAliasToID(
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httpReq, federation, cfg, rsAPI, fsAPI,
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)
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@ -181,7 +159,7 @@ func Setup(
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v1fedmux.Handle("/query/profile", internal.MakeFedAPI(
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"federation_query_profile", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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return GetProfile(
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httpReq, accountDB, cfg, asAPI,
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)
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@ -190,11 +168,7 @@ func Setup(
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v1fedmux.Handle("/user/devices/{userID}", internal.MakeFedAPI(
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"federation_user_devices", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars, err := internal.URLDecodeMapValues(mux.Vars(httpReq))
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if err != nil {
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return util.ErrorResponse(err)
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}
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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return GetUserDevices(
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httpReq, deviceDB, vars["userID"],
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)
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@ -203,11 +177,7 @@ func Setup(
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v1fedmux.Handle("/make_join/{roomID}/{eventID}", internal.MakeFedAPI(
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"federation_make_join", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars, err := internal.URLDecodeMapValues(mux.Vars(httpReq))
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if err != nil {
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return util.ErrorResponse(err)
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}
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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roomID := vars["roomID"]
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eventID := vars["eventID"]
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queryVars := httpReq.URL.Query()
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@ -232,11 +202,7 @@ func Setup(
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v1fedmux.Handle("/send_join/{roomID}/{eventID}", internal.MakeFedAPI(
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"federation_send_join", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars, err := internal.URLDecodeMapValues(mux.Vars(httpReq))
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if err != nil {
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return util.ErrorResponse(err)
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}
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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roomID := vars["roomID"]
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eventID := vars["eventID"]
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res := SendJoin(
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@ -254,11 +220,7 @@ func Setup(
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v2fedmux.Handle("/send_join/{roomID}/{eventID}", internal.MakeFedAPI(
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"federation_send_join", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars, err := internal.URLDecodeMapValues(mux.Vars(httpReq))
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if err != nil {
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return util.ErrorResponse(err)
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}
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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roomID := vars["roomID"]
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eventID := vars["eventID"]
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return SendJoin(
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@ -269,11 +231,7 @@ func Setup(
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v1fedmux.Handle("/make_leave/{roomID}/{eventID}", internal.MakeFedAPI(
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"federation_make_leave", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars, err := internal.URLDecodeMapValues(mux.Vars(httpReq))
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if err != nil {
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return util.ErrorResponse(err)
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}
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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roomID := vars["roomID"]
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eventID := vars["eventID"]
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return MakeLeave(
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@ -284,11 +242,7 @@ func Setup(
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v2fedmux.Handle("/send_leave/{roomID}/{eventID}", internal.MakeFedAPI(
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"federation_send_leave", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars, err := internal.URLDecodeMapValues(mux.Vars(httpReq))
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if err != nil {
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return util.ErrorResponse(err)
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}
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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roomID := vars["roomID"]
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eventID := vars["eventID"]
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return SendLeave(
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@ -306,22 +260,14 @@ func Setup(
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v1fedmux.Handle("/get_missing_events/{roomID}", internal.MakeFedAPI(
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"federation_get_missing_events", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars, err := internal.URLDecodeMapValues(mux.Vars(httpReq))
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if err != nil {
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return util.ErrorResponse(err)
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}
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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return GetMissingEvents(httpReq, request, rsAPI, vars["roomID"])
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},
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)).Methods(http.MethodPost)
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v1fedmux.Handle("/backfill/{roomID}", internal.MakeFedAPI(
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"federation_backfill", cfg.Matrix.ServerName, keys, wakeup,
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest) util.JSONResponse {
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vars, err := internal.URLDecodeMapValues(mux.Vars(httpReq))
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if err != nil {
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return util.ErrorResponse(err)
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}
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func(httpReq *http.Request, request *gomatrixserverlib.FederationRequest, vars map[string]string) util.JSONResponse {
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return Backfill(httpReq, request, rsAPI, vars["roomID"], cfg)
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},
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)).Methods(http.MethodGet)
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@ -103,7 +103,18 @@ func NewBaseDendrite(cfg *config.Dendrite, componentName string, enableHTTPAPIs
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})}
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}
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httpmux := mux.NewRouter()
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// Ideally we would only use SkipClean on routes which we know can allow '/' but due to
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// https://github.com/gorilla/mux/issues/460 we have to attach this at the top router.
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// When used in conjunction with UseEncodedPath() we get the behaviour we want when parsing
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// path parameters:
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// /foo/bar%2Fbaz == [foo, bar%2Fbaz] (from UseEncodedPath)
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// /foo/bar%2F%2Fbaz == [foo, bar%2F%2Fbaz] (from SkipClean)
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// In particular, rooms v3 event IDs are not urlsafe and can include '/' and because they
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// are randomly generated it results in flakey tests.
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// We need to be careful with media APIs if they read from a filesystem to make sure they
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// are not inadvertently reading paths without cleaning, else this could introduce a
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// directory traversal attack e.g /../../../etc/passwd
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httpmux := mux.NewRouter().SkipClean(true)
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return &BaseDendrite{
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componentName: componentName,
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@ -174,7 +174,7 @@ func MakeFedAPI(
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serverName gomatrixserverlib.ServerName,
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keyRing gomatrixserverlib.KeyRing,
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wakeup *FederationWakeups,
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f func(*http.Request, *gomatrixserverlib.FederationRequest) util.JSONResponse,
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f func(*http.Request, *gomatrixserverlib.FederationRequest, map[string]string) util.JSONResponse,
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) http.Handler {
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h := func(req *http.Request) util.JSONResponse {
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fedReq, errResp := gomatrixserverlib.VerifyHTTPRequest(
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@ -184,7 +184,12 @@ func MakeFedAPI(
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return errResp
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}
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go wakeup.Wakeup(req.Context(), fedReq.Origin())
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return f(req, fedReq)
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vars, err := URLDecodeMapValues(mux.Vars(req))
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if err != nil {
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return util.ErrorResponse(err)
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}
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return f(req, fedReq, vars)
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}
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return MakeExternalAPI(metricsName, h)
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}
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