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authchain_test.go
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package gomatrixserverlib_test
import (
"context"
"testing"
"github.com/brianathere/gomatrixserverlib"
)
// A basic sanity check of a linear sequence of common events
func TestVerifyEventAuthChain(t *testing.T) {
ctx := context.Background()
testEvents := [][]byte{
[]byte(`{"auth_events":[],"content":{"creator":"@userid:baba.is.you"},"depth":0,"event_id":"$WCraVpPZe5TtHAqs:baba.is.you","hashes":{"sha256":"EehWNbKy+oDOMC0vIvYl1FekdDxMNuabXKUVzV7DG74"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[],"prev_state":[],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"08aF4/bYWKrdGPFdXmZCQU6IrOE1ulpevmWBM3kiShJPAbRbZ6Awk7buWkIxlMF6kX3kb4QpbAlZfHLQgncjCw"}},"state_key":"","type":"m.room.create"}`),
[]byte(`{"auth_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}]],"content":{"membership":"join"},"depth":1,"event_id":"$fnwGrQEpiOIUoDU2:baba.is.you","hashes":{"sha256":"DqOjdFgvFQ3V/jvQW2j3ygHL4D+t7/LaIPZ/tHTDZtI"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}]],"prev_state":[],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"qBWLb42zicQVsbh333YrcKpHfKokcUOM/ytldGlrgSdXqDEDDxvpcFlfadYnyvj3Z/GjA2XZkqKHanNEh575Bw"}},"state_key":"@userid:baba.is.you","type":"m.room.member"}`),
[]byte(`{"auth_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}],["$fnwGrQEpiOIUoDU2:baba.is.you",{"sha256":"gUr26K5Tt7GQlNs8BlUup92gOzAZHbT8WNEobkrEIqk"}]],"content":{"body":"Test Message"},"depth":2,"event_id":"$xOJZshi3NeKKJiCf:baba.is.you","hashes":{"sha256":"lu5fF5HE090AXdu/+NpJ/RjRVRk/2tWCUozUc5t7Ru4"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[["$fnwGrQEpiOIUoDU2:baba.is.you",{"sha256":"gUr26K5Tt7GQlNs8BlUup92gOzAZHbT8WNEobkrEIqk"}]],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"5KoVSLOBesqH9vciKXDExdu95lKFDtK1I72Hq1GG/UeEsH9jx7wL3V4jGYSKDnX2aLYp/VPiBQje7DFjde+hDQ"}},"type":"m.room.message"}`),
[]byte(`{"auth_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}],["$fnwGrQEpiOIUoDU2:baba.is.you",{"sha256":"gUr26K5Tt7GQlNs8BlUup92gOzAZHbT8WNEobkrEIqk"}]],"content":{"body":"Test Message"},"depth":3,"event_id":"$4Kp0G1yWZ6tNpeI7:baba.is.you","hashes":{"sha256":"B+MjcGZRh72iaGOgyNbIxgFkHDJo6NO8NQDgiKDKDBA"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[["$xOJZshi3NeKKJiCf:baba.is.you",{"sha256":"5PGENImHC863Yz9sO6IJX+bIQthZFI2RMhFZyFy+bC0"}]],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"rP+Ybp17GPCqQBrTQ3yz+q6PihdaMWvNY3SngV8aDLHv8wdDlH4ULGnjsB+Az7trqYdCE3rZVo9M7Hy5tOObDg"}},"type":"m.room.message"}`),
}
testEvent, _ := gomatrixserverlib.NewEventFromTrustedJSON(testEvents[len(testEvents)-1], false, gomatrixserverlib.RoomVersionV1)
if err := gomatrixserverlib.VerifyEventAuthChain(ctx, testEvent.Headered(gomatrixserverlib.RoomVersionV1), provideEvents(t, testEvents)); err != nil {
t.Fatalf("Expected event to pass auth chain checks, but failed: %s", err)
}
}
// A basic check that missing events causes a failure, in this example the membership event.
func TestVerifyEventAuthChainMissing(t *testing.T) {
ctx := context.Background()
testEvents := [][]byte{
[]byte(`{"auth_events":[],"content":{"creator":"@userid:baba.is.you"},"depth":0,"event_id":"$WCraVpPZe5TtHAqs:baba.is.you","hashes":{"sha256":"EehWNbKy+oDOMC0vIvYl1FekdDxMNuabXKUVzV7DG74"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[],"prev_state":[],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"08aF4/bYWKrdGPFdXmZCQU6IrOE1ulpevmWBM3kiShJPAbRbZ6Awk7buWkIxlMF6kX3kb4QpbAlZfHLQgncjCw"}},"state_key":"","type":"m.room.create"}`),
// []byte(`{"auth_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}]],"content":{"membership":"join"},"depth":1,"event_id":"$fnwGrQEpiOIUoDU2:baba.is.you","hashes":{"sha256":"DqOjdFgvFQ3V/jvQW2j3ygHL4D+t7/LaIPZ/tHTDZtI"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}]],"prev_state":[],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"qBWLb42zicQVsbh333YrcKpHfKokcUOM/ytldGlrgSdXqDEDDxvpcFlfadYnyvj3Z/GjA2XZkqKHanNEh575Bw"}},"state_key":"@userid:baba.is.you","type":"m.room.member"}`),
[]byte(`{"auth_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}],["$fnwGrQEpiOIUoDU2:baba.is.you",{"sha256":"gUr26K5Tt7GQlNs8BlUup92gOzAZHbT8WNEobkrEIqk"}]],"content":{"body":"Test Message"},"depth":2,"event_id":"$xOJZshi3NeKKJiCf:baba.is.you","hashes":{"sha256":"lu5fF5HE090AXdu/+NpJ/RjRVRk/2tWCUozUc5t7Ru4"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[["$fnwGrQEpiOIUoDU2:baba.is.you",{"sha256":"gUr26K5Tt7GQlNs8BlUup92gOzAZHbT8WNEobkrEIqk"}]],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"5KoVSLOBesqH9vciKXDExdu95lKFDtK1I72Hq1GG/UeEsH9jx7wL3V4jGYSKDnX2aLYp/VPiBQje7DFjde+hDQ"}},"type":"m.room.message"}`),
[]byte(`{"auth_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}],["$fnwGrQEpiOIUoDU2:baba.is.you",{"sha256":"gUr26K5Tt7GQlNs8BlUup92gOzAZHbT8WNEobkrEIqk"}]],"content":{"body":"Test Message"},"depth":3,"event_id":"$4Kp0G1yWZ6tNpeI7:baba.is.you","hashes":{"sha256":"B+MjcGZRh72iaGOgyNbIxgFkHDJo6NO8NQDgiKDKDBA"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[["$xOJZshi3NeKKJiCf:baba.is.you",{"sha256":"5PGENImHC863Yz9sO6IJX+bIQthZFI2RMhFZyFy+bC0"}]],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"rP+Ybp17GPCqQBrTQ3yz+q6PihdaMWvNY3SngV8aDLHv8wdDlH4ULGnjsB+Az7trqYdCE3rZVo9M7Hy5tOObDg"}},"type":"m.room.message"}`),
}
testEvent, _ := gomatrixserverlib.NewEventFromTrustedJSON(testEvents[len(testEvents)-1], false, gomatrixserverlib.RoomVersionV1)
if err := gomatrixserverlib.VerifyEventAuthChain(ctx, testEvent.Headered(gomatrixserverlib.RoomVersionV1), provideEvents(t, testEvents)); err == nil {
t.Fatalf("Expected event to fail auth chain checks, but passed")
}
}
// A basic check that lying about which auth events are required to send the event results in failure, in this example lying and saying you don't need the membership event.
func TestVerifyEventAuthChainLying(t *testing.T) {
ctx := context.Background()
testEvents := [][]byte{
[]byte(`{"auth_events":[],"content":{"creator":"@userid:baba.is.you"},"depth":0,"event_id":"$WCraVpPZe5TtHAqs:baba.is.you","hashes":{"sha256":"EehWNbKy+oDOMC0vIvYl1FekdDxMNuabXKUVzV7DG74"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[],"prev_state":[],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"08aF4/bYWKrdGPFdXmZCQU6IrOE1ulpevmWBM3kiShJPAbRbZ6Awk7buWkIxlMF6kX3kb4QpbAlZfHLQgncjCw"}},"state_key":"","type":"m.room.create"}`),
[]byte(`{"auth_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}]],"content":{"membership":"join"},"depth":1,"event_id":"$fnwGrQEpiOIUoDU2:baba.is.you","hashes":{"sha256":"DqOjdFgvFQ3V/jvQW2j3ygHL4D+t7/LaIPZ/tHTDZtI"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}]],"prev_state":[],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"qBWLb42zicQVsbh333YrcKpHfKokcUOM/ytldGlrgSdXqDEDDxvpcFlfadYnyvj3Z/GjA2XZkqKHanNEh575Bw"}},"state_key":"@userid:baba.is.you","type":"m.room.member"}`),
[]byte(`{"auth_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}],["$fnwGrQEpiOIUoDU2:baba.is.you",{"sha256":"gUr26K5Tt7GQlNs8BlUup92gOzAZHbT8WNEobkrEIqk"}]],"content":{"body":"Test Message"},"depth":2,"event_id":"$xOJZshi3NeKKJiCf:baba.is.you","hashes":{"sha256":"lu5fF5HE090AXdu/+NpJ/RjRVRk/2tWCUozUc5t7Ru4"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[["$fnwGrQEpiOIUoDU2:baba.is.you",{"sha256":"gUr26K5Tt7GQlNs8BlUup92gOzAZHbT8WNEobkrEIqk"}]],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"5KoVSLOBesqH9vciKXDExdu95lKFDtK1I72Hq1GG/UeEsH9jx7wL3V4jGYSKDnX2aLYp/VPiBQje7DFjde+hDQ"}},"type":"m.room.message"}`),
// modified to remove $fnwGrQEpiOIUoDU2 from auth_events
[]byte(`{"auth_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}]],"content":{"body":"Test Message"},"depth":3,"event_id":"$4Kp0G1yWZ6tNpeI7:baba.is.you","hashes":{"sha256":"B+MjcGZRh72iaGOgyNbIxgFkHDJo6NO8NQDgiKDKDBA"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[["$xOJZshi3NeKKJiCf:baba.is.you",{"sha256":"5PGENImHC863Yz9sO6IJX+bIQthZFI2RMhFZyFy+bC0"}]],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"rP+Ybp17GPCqQBrTQ3yz+q6PihdaMWvNY3SngV8aDLHv8wdDlH4ULGnjsB+Az7trqYdCE3rZVo9M7Hy5tOObDg"}},"type":"m.room.message"}`),
}
testEvent, _ := gomatrixserverlib.NewEventFromTrustedJSON(testEvents[len(testEvents)-1], false, gomatrixserverlib.RoomVersionV1)
if err := gomatrixserverlib.VerifyEventAuthChain(ctx, testEvent.Headered(gomatrixserverlib.RoomVersionV1), provideEvents(t, testEvents)); err == nil {
t.Fatalf("Expected event to fail auth chain checks, but passed")
}
}
// A check to make sure that, even if the original specified event passes the check, if one of its auth events fails the check the whole thing fails.
// In this example, the membership event isn't valid as the membership is set to leave.
func TestVerifyEventAuthChainCascadeFailure(t *testing.T) {
ctx := context.Background()
testEvents := [][]byte{
[]byte(`{"auth_events":[],"content":{"creator":"@userid:baba.is.you"},"depth":0,"event_id":"$WCraVpPZe5TtHAqs:baba.is.you","hashes":{"sha256":"EehWNbKy+oDOMC0vIvYl1FekdDxMNuabXKUVzV7DG74"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[],"prev_state":[],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"08aF4/bYWKrdGPFdXmZCQU6IrOE1ulpevmWBM3kiShJPAbRbZ6Awk7buWkIxlMF6kX3kb4QpbAlZfHLQgncjCw"}},"state_key":"","type":"m.room.create"}`),
// modified to set to 'leave'
[]byte(`{"auth_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}]],"content":{"membership":"leave"},"depth":1,"event_id":"$fnwGrQEpiOIUoDU2:baba.is.you","hashes":{"sha256":"DqOjdFgvFQ3V/jvQW2j3ygHL4D+t7/LaIPZ/tHTDZtI"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}]],"prev_state":[],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"qBWLb42zicQVsbh333YrcKpHfKokcUOM/ytldGlrgSdXqDEDDxvpcFlfadYnyvj3Z/GjA2XZkqKHanNEh575Bw"}},"state_key":"@userid:baba.is.you","type":"m.room.member"}`),
[]byte(`{"auth_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}],["$fnwGrQEpiOIUoDU2:baba.is.you",{"sha256":"gUr26K5Tt7GQlNs8BlUup92gOzAZHbT8WNEobkrEIqk"}]],"content":{"body":"Test Message"},"depth":2,"event_id":"$xOJZshi3NeKKJiCf:baba.is.you","hashes":{"sha256":"lu5fF5HE090AXdu/+NpJ/RjRVRk/2tWCUozUc5t7Ru4"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[["$fnwGrQEpiOIUoDU2:baba.is.you",{"sha256":"gUr26K5Tt7GQlNs8BlUup92gOzAZHbT8WNEobkrEIqk"}]],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"5KoVSLOBesqH9vciKXDExdu95lKFDtK1I72Hq1GG/UeEsH9jx7wL3V4jGYSKDnX2aLYp/VPiBQje7DFjde+hDQ"}},"type":"m.room.message"}`),
[]byte(`{"auth_events":[["$WCraVpPZe5TtHAqs:baba.is.you",{"sha256":"gBxQI2xzDLMoyIjkrpCJFBXC5NnrSemepc7SninSARI"}],["$fnwGrQEpiOIUoDU2:baba.is.you",{"sha256":"gUr26K5Tt7GQlNs8BlUup92gOzAZHbT8WNEobkrEIqk"}]],"content":{"body":"Test Message"},"depth":3,"event_id":"$4Kp0G1yWZ6tNpeI7:baba.is.you","hashes":{"sha256":"B+MjcGZRh72iaGOgyNbIxgFkHDJo6NO8NQDgiKDKDBA"},"origin":"baba.is.you","origin_server_ts":0,"prev_events":[["$xOJZshi3NeKKJiCf:baba.is.you",{"sha256":"5PGENImHC863Yz9sO6IJX+bIQthZFI2RMhFZyFy+bC0"}]],"room_id":"!roomid:baba.is.you","sender":"@userid:baba.is.you","signatures":{"baba.is.you":{"ed25519:auto":"rP+Ybp17GPCqQBrTQ3yz+q6PihdaMWvNY3SngV8aDLHv8wdDlH4ULGnjsB+Az7trqYdCE3rZVo9M7Hy5tOObDg"}},"type":"m.room.message"}`),
}
testEvent, _ := gomatrixserverlib.NewEventFromTrustedJSON(testEvents[len(testEvents)-1], false, gomatrixserverlib.RoomVersionV1)
if err := gomatrixserverlib.VerifyEventAuthChain(ctx, testEvent.Headered(gomatrixserverlib.RoomVersionV1), provideEvents(t, testEvents)); err == nil {
t.Fatalf("Expected event to fail auth chain checks, but passed")
}
}
func provideEvents(t *testing.T, events [][]byte) gomatrixserverlib.AuthChainProvider {
eventMap := make(map[string]*gomatrixserverlib.Event)
for _, eventBytes := range events {
ev, err := gomatrixserverlib.NewEventFromTrustedJSON(eventBytes, false, gomatrixserverlib.RoomVersionV1)
if err != nil {
t.Fatalf("Failed to load event: %s", err)
}
eventMap[ev.EventID()] = ev
}
return func(roomVer gomatrixserverlib.RoomVersion, eventIDs []string) (result []*gomatrixserverlib.Event, err error) {
for _, id := range eventIDs {
if ev, ok := eventMap[id]; ok {
result = append(result, ev)
}
}
return
}
}