Federation fixes (#845)

* Update gomatrixserverlib to p2p commit 92c0338, other tweaks

* Update gomatrixserverlib to p2p commit e5dcc65

* Rewrite getAuthChain

* Update gomatrixserverlib in go.mod/go.sum

* Correct a couple of package refs for updated gmsl/gomatrix

* Update gomatrixserverlib ref in go.mod/go.sum

* Update getAuthChain comments following @babolivier review

clientapi/routing/joinroom.go

@@ -320,7 +320,7 @@ func (r joinRoomReq) joinRoomUsingServer(roomID string, server gomatrixserverlib
 	}
 
 	if err = r.producer.SendEventWithState(
-		r.req.Context(), gomatrixserverlib.RespState(respSendJoin), event,
+		r.req.Context(), gomatrixserverlib.RespState(respSendJoin.RespState), event,
 	); err != nil {
 		res := httputil.LogThenError(r.req, err)
 		return &res, nil

go.mod

@@ -2,69 +2,36 @@ module github.com/matrix-org/dendrite
 
 require (
 	github.com/Shopify/sarama v0.0.0-20170127151855-574d3147eee3
-	github.com/alecthomas/gometalinter v2.0.2+incompatible
+	github.com/Shopify/toxiproxy v2.1.4+incompatible // indirect
-	github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4
+	github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd // indirect
-	github.com/apache/thrift v0.0.0-20161221203622-b2a4d4ae21c7
+	github.com/eapache/go-resiliency v0.0.0-20160104191539-b86b1ec0dd42 // indirect
-	github.com/beorn7/perks v1.0.1
+	github.com/eapache/go-xerial-snappy v0.0.0-20160609142408-bb955e01b934 // indirect
-	github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd
+	github.com/eapache/queue v1.1.0 // indirect
-	github.com/crossdock/crossdock-go v0.0.0-20160816171116-049aabb0122b
+	github.com/golang/snappy v0.0.0-20170119014723-7db9049039a0 // indirect
-	github.com/davecgh/go-spew v1.1.1
-	github.com/eapache/go-resiliency v0.0.0-20160104191539-b86b1ec0dd42
-	github.com/eapache/go-xerial-snappy v0.0.0-20160609142408-bb955e01b934
-	github.com/eapache/queue v1.1.0
-	github.com/golang/protobuf v1.3.2
-	github.com/golang/snappy v0.0.0-20170119014723-7db9049039a0
-	github.com/google/shlex v0.0.0-20150127133951-6f45313302b9
-	github.com/gorilla/context v1.1.1
 	github.com/gorilla/mux v1.7.3
-	github.com/jaegertracing/jaeger-client-go v0.0.0-20170921145708-3ad49a1d839b
+	github.com/klauspost/crc32 v0.0.0-20161016154125-cb6bfca970f6 // indirect
-	github.com/jaegertracing/jaeger-lib v0.0.0-20170920222118-21a3da6d66fe
-	github.com/klauspost/crc32 v0.0.0-20161016154125-cb6bfca970f6
 	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
 	github.com/lib/pq v0.0.0-20170918175043-23da1db4f16d
 	github.com/matrix-org/dugong v0.0.0-20171220115018-ea0a4690a0d5
 	github.com/matrix-org/gomatrix v0.0.0-20190528120928-7df988a63f26
-	github.com/matrix-org/gomatrixserverlib v0.0.0-20190814163046-d6285a18401f
+	github.com/matrix-org/gomatrixserverlib v0.0.0-20200110113524-5f9a44f2fc67
 	github.com/matrix-org/naffka v0.0.0-20171115094957-662bfd0841d0
 	github.com/matrix-org/util v0.0.0-20171127121716-2e2df66af2f5
-	github.com/matttproud/golang_protobuf_extensions v1.0.1
-	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.1 // indirect
 	github.com/nfnt/resize v0.0.0-20160724205520-891127d8d1b5
-	github.com/nicksnyder/go-i18n v1.8.1
 	github.com/opentracing/opentracing-go v0.0.0-20170806192116-8ebe5d4e236e
-	github.com/pelletier/go-toml v0.0.0-20170904195809-1d6b12b7cb29
+	github.com/pierrec/lz4 v0.0.0-20161206202305-5c9560bfa9ac // indirect
-	github.com/pierrec/lz4 v0.0.0-20161206202305-5c9560bfa9ac
+	github.com/pierrec/xxHash v0.0.0-20160112165351-5a004441f897 // indirect
-	github.com/pierrec/xxHash v0.0.0-20160112165351-5a004441f897
 	github.com/pkg/errors v0.8.1
-	github.com/pmezard/go-difflib v1.0.0
 	github.com/prometheus/client_golang v1.2.1
-	github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4
+	github.com/rcrowley/go-metrics v0.0.0-20161128210544-1f30fe9094a5 // indirect
-	github.com/prometheus/common v0.7.0
-	github.com/prometheus/procfs v0.0.5
-	github.com/rcrowley/go-metrics v0.0.0-20161128210544-1f30fe9094a5
 	github.com/sirupsen/logrus v1.4.2
-	github.com/stretchr/objx v0.2.0 // indirect
+	github.com/uber-go/atomic v1.3.0 // indirect
-	github.com/stretchr/testify v1.3.0
-	github.com/tidwall/gjson v1.1.5
-	github.com/tidwall/match v1.0.1
-	github.com/tidwall/sjson v1.0.3
-	github.com/uber-go/atomic v1.3.0
 	github.com/uber/jaeger-client-go v2.15.0+incompatible
 	github.com/uber/jaeger-lib v1.5.0
-	github.com/uber/tchannel-go v0.0.0-20170927010734-b3e26487e291
+	go.uber.org/atomic v1.3.0 // indirect
-	go.uber.org/atomic v1.3.0
-	go.uber.org/multierr v0.0.0-20170829224307-fb7d312c2c04
-	go.uber.org/zap v1.7.1
 	golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2
-	golang.org/x/net v0.0.0-20190613194153-d28f0bde5980
-	golang.org/x/sys v0.0.0-20191010194322-b09406accb47
 	gopkg.in/Shopify/sarama.v1 v1.11.0
-	gopkg.in/airbrake/gobrake.v2 v2.0.9
-	gopkg.in/alecthomas/kingpin.v3-unstable v3.0.0-20170727041045-23bcc3c4eae3
-	gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2
 	gopkg.in/h2non/bimg.v1 v1.0.18
-	gopkg.in/macaroon.v2 v2.1.0
 	gopkg.in/yaml.v2 v2.2.2
 )
 

go.sum

@@ -1,13 +1,11 @@
 github.com/Shopify/sarama v0.0.0-20170127151855-574d3147eee3 h1:j6BAEHYn1kUyW2j7kY0mOJ/R8A0qWwXpvUAEHGemm/g=
 github.com/Shopify/sarama v0.0.0-20170127151855-574d3147eee3/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
-github.com/alecthomas/gometalinter v2.0.2+incompatible/go.mod h1:qfIpQGGz3d+NmgyPBqv+LSh50emm1pt72EtcX2vKYQk=
+github.com/Shopify/toxiproxy v2.1.4+incompatible h1:TKdv8HiTLgE5wdJuEML90aBgNWsokNbMijUGhmcoBJc=
+github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/apache/thrift v0.0.0-20161221203622-b2a4d4ae21c7/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
-github.com/beorn7/perks v0.0.0-20160804104726-4c0e84591b9a h1:BtpsbiV638WQZwhA98cEZw2BsbnQJrbd0BI7tsy0W1c=
-github.com/beorn7/perks v0.0.0-20160804104726-4c0e84591b9a/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
@@ -16,7 +14,6 @@ github.com/cespare/xxhash/v2 v2.1.0 h1:yTUvW7Vhb89inJ+8irsUqiWjh8iT6sQPZiQzI6ReG
 github.com/cespare/xxhash/v2 v2.1.0/go.mod h1:dgIUBU3pDso/gPgZ1osOZ0iQf77oPR28Tjxl5dIMyVM=
 github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd h1:qMd81Ts1T2OTKmB4acZcyKaMtRnY5Y44NuXGX2GFJ1w=
 github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI=
-github.com/crossdock/crossdock-go v0.0.0-20160816171116-049aabb0122b/go.mod h1:v9FBN7gdVTpiD/+LZ7Po0UKvROyT87uLVxTHVky/dlQ=
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@@ -34,8 +31,6 @@ github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
-github.com/golang/protobuf v0.0.0-20161117033126-8ee79997227b h1:fE/yi9pibxGEc0gSJuEShcsBXE2d5FW3OudsjE9tKzQ=
-github.com/golang/protobuf v0.0.0-20161117033126-8ee79997227b/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs=
@@ -43,24 +38,20 @@ github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5y
 github.com/golang/snappy v0.0.0-20170119014723-7db9049039a0 h1:FMElzTwkd/2jQ2QzLEzt97JRgvFhYhnYiaQSwZ7tuyU=
 github.com/golang/snappy v0.0.0-20170119014723-7db9049039a0/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
+github.com/google/go-cmp v0.3.0 h1:crn/baboCvb5fXaQ0IJ1SGTsTVrWpDsCWC8EGETZijY=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
-github.com/google/shlex v0.0.0-20150127133951-6f45313302b9/go.mod h1:RpwtwJQFrIEPstU94h88MWPXP2ektJZ8cZ0YntAmXiE=
-github.com/gorilla/context v1.1.1/go.mod h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51q0aT7Yg=
-github.com/gorilla/mux v1.3.0 h1:HwSEKGN6U5T2aAQTfu5pW8fiwjSp3IgwdRbkICydk/c=
-github.com/gorilla/mux v1.3.0/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
 github.com/gorilla/mux v1.7.3 h1:gnP5JzjVOuiZD07fKKToCAOjS0yOpj/qPETTXCCS6hw=
 github.com/gorilla/mux v1.7.3/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
 github.com/h2non/parth v0.0.0-20190131123155-b4df798d6542 h1:2VTzZjLZBgl62/EtslCrtky5vbi9dd7HrQPQIx6wqiw=
 github.com/h2non/parth v0.0.0-20190131123155-b4df798d6542/go.mod h1:Ow0tF8D4Kplbc8s8sSb3V2oUCygFHVp8gC3Dn6U4MNI=
-github.com/jaegertracing/jaeger-client-go v0.0.0-20170921145708-3ad49a1d839b/go.mod h1:HWG7INeOG1ZE17I/S8eeb+svquXmBS/hf1Obi6hJUyQ=
-github.com/jaegertracing/jaeger-lib v0.0.0-20170920222118-21a3da6d66fe/go.mod h1:VqeqQrZmZr9G4WdLw4ei9tAHU54iJRkfoFHvTTQn4jQ=
 github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
 github.com/json-iterator/go v1.1.7/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/klauspost/crc32 v0.0.0-20161016154125-cb6bfca970f6 h1:KAZ1BW2TCmT6PRihDPpocIy1QTtsAsrx6TneU/4+CMg=
 github.com/klauspost/crc32 v0.0.0-20161016154125-cb6bfca970f6/go.mod h1:+ZoRqAPRLkC4NPOvfYeR5KNOrY6TD+/sAC3HXPZgDYg=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/konsorten/go-windows-terminal-sequences v1.0.2 h1:DB17ag19krx9CFsz4o3enTrPXyIXCl+2iCXH/aMAp9s=
 github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
@@ -70,26 +61,14 @@ github.com/lib/pq v0.0.0-20170918175043-23da1db4f16d h1:Hdtccv31GWxWoCzWsIhZXy5N
 github.com/lib/pq v0.0.0-20170918175043-23da1db4f16d/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
 github.com/matrix-org/dugong v0.0.0-20171220115018-ea0a4690a0d5 h1:nMX2t7hbGF0NYDYySx0pCqEKGKAeZIiSqlWSspetlhY=
 github.com/matrix-org/dugong v0.0.0-20171220115018-ea0a4690a0d5/go.mod h1:NgPCr+UavRGH6n5jmdX8DuqFZ4JiCWIJoZiuhTRLSUg=
-github.com/matrix-org/gomatrix v0.0.0-20171003113848-a7fc80c8060c h1:aZap604NyBGhAUE0CyNHz6+Pryye5A5mHnYyO4KPPW8=
-github.com/matrix-org/gomatrix v0.0.0-20171003113848-a7fc80c8060c/go.mod h1:3fxX6gUjWyI/2Bt7J1OLhpCzOfO/bB3AiX0cJtEKud0=
 github.com/matrix-org/gomatrix v0.0.0-20190130130140-385f072fe9af h1:piaIBNQGIHnni27xRB7VKkEwoWCgAmeuYf8pxAyG0bI=
 github.com/matrix-org/gomatrix v0.0.0-20190130130140-385f072fe9af/go.mod h1:3fxX6gUjWyI/2Bt7J1OLhpCzOfO/bB3AiX0cJtEKud0=
 github.com/matrix-org/gomatrix v0.0.0-20190528120928-7df988a63f26 h1:Hr3zjRsq2bhrnp3Ky1qgx/fzCtCALOoGYylh2tpS9K4=
 github.com/matrix-org/gomatrix v0.0.0-20190528120928-7df988a63f26/go.mod h1:3fxX6gUjWyI/2Bt7J1OLhpCzOfO/bB3AiX0cJtEKud0=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20181109104322-1c2cbc0872f0 h1:3UzhmERBbis4ZaB3imEbZwtDjGz/oVRC2cLLEajCzJA=
+github.com/matrix-org/gomatrixserverlib v0.0.0-20200110113524-5f9a44f2fc67 h1:8yIf1f9Bmy3WO3zZ9WMFAuADeooxKn4QdlRrXMIXc8M=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20181109104322-1c2cbc0872f0/go.mod h1:YHyhIQUmuXyKtoVfDUMk/DyU93Taamlu6nPZkij/JtA=
+github.com/matrix-org/gomatrixserverlib v0.0.0-20200110113524-5f9a44f2fc67/go.mod h1:FsKa2pWE/bpQql9H7U4boOPXFoJX/QcqaZZ6ijLkaZI=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20190619132215-178ed5e3b8e2 h1:pYajAEdi3sowj4iSunqctchhcMNW3rDjeeH0T4uDkMY=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20190619132215-178ed5e3b8e2/go.mod h1:sf0RcKOdiwJeTti7A313xsaejNUGYDq02MQZ4JD4w/E=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20190724145009-a6df10ef35d6 h1:B8n1H5Wb1B5jwLzTylBpY0kJCMRqrofT7PmOw4aJFJA=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20190724145009-a6df10ef35d6/go.mod h1:sf0RcKOdiwJeTti7A313xsaejNUGYDq02MQZ4JD4w/E=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20190805173246-3a2199d5ecd6 h1:xr69Hk6QM3RIN6JSvx3RpDowBGpHpDDqhqXCeySwYow=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20190805173246-3a2199d5ecd6/go.mod h1:sf0RcKOdiwJeTti7A313xsaejNUGYDq02MQZ4JD4w/E=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20190814163046-d6285a18401f h1:20CZL7ApB7xgR7sZF9yD/qpsP51Sfx0TTgUJ3vKgnZQ=
-github.com/matrix-org/gomatrixserverlib v0.0.0-20190814163046-d6285a18401f/go.mod h1:sf0RcKOdiwJeTti7A313xsaejNUGYDq02MQZ4JD4w/E=
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-gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
-gopkg.in/alecthomas/kingpin.v3-unstable v3.0.0-20170727041045-23bcc3c4eae3/go.mod h1:3HH7i1SgMqlzxCcBmUHW657sD4Kvv9sC3HpL3YukzwA=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
+gopkg.in/h2non/bimg.v1 v1.0.18 h1:qn6/RpBHt+7WQqoBcK+aF2puc6nC78eZj5LexxoalT4=
 gopkg.in/h2non/bimg.v1 v1.0.18/go.mod h1:PgsZL7dLwUbsGm1NYps320GxGgvQNTnecMCZqxV11So=
 gopkg.in/h2non/gock.v1 v1.0.14 h1:fTeu9fcUvSnLNacYvYI54h+1/XEteDyHvrVCZEEEYNM=
 gopkg.in/h2non/gock.v1 v1.0.14/go.mod h1:sX4zAkdYX1TRGJ2JY156cFspQn4yRWn6p9EMdODlynE=
-gopkg.in/macaroon.v2 v2.0.0/go.mod h1:+I6LnTMkm/uV5ew/0nsulNjL16SK4+C8yDmRUzHR17I=
 gopkg.in/macaroon.v2 v2.1.0/go.mod h1:OUb+TQP/OP0WOerC2Jp/3CwhIKyIa9kQjuc7H24e6/o=
-gopkg.in/yaml.v2 v2.0.0-20171116090243-287cf08546ab h1:yZ6iByf7GKeJ3gsd1Dr/xaj1DyJ//wxKX1Cdh8LhoAw=
-gopkg.in/yaml.v2 v2.0.0-20171116090243-287cf08546ab/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

roomserver/query/query.go

@@ -609,50 +609,54 @@ func (r *RoomserverQueryAPI) QueryStateAndAuthChain(
 	return err
 }
 
-// getAuthChain fetches the auth chain for the given auth events.
+// getAuthChain fetches the auth chain for the given auth events. An auth chain
-// An auth chain is the list of all events that are referenced in the
+// is the list of all events that are referenced in the auth_events section, and
-// auth_events section, and all their auth_events, recursively.
+// all their auth_events, recursively. The returned set of events contain the
-// The returned set of events contain the given events.
+// given events. Will *not* error if we don't have all auth events.
-// Will *not* error if we don't have all auth events.
 func getAuthChain(
 	ctx context.Context, dB RoomserverQueryAPIEventDB, authEventIDs []string,
 ) ([]gomatrixserverlib.Event, error) {
-	var authEvents []gomatrixserverlib.Event
+	// List of event IDs to fetch. On each pass, these events will be requested
-
+	// from the database and the `eventsToFetch` will be updated with any new
-	// List of event ids to fetch. These will be added to the result and
+	// events that we have learned about and need to find. When `eventsToFetch`
-	// their auth events will be fetched (if they haven't been previously)
+	// is eventually empty, we should have reached the end of the chain.
 	eventsToFetch := authEventIDs
+	authEventsMap := make(map[string]gomatrixserverlib.Event)
 
-	// Set of events we've already fetched.
-	fetchedEventMap := make(map[string]bool)
-
-	// Check if there's anything left to do
 	for len(eventsToFetch) > 0 {
-		// Convert eventIDs to events. First need to fetch NIDs
+		// Try to retrieve the events from the database.
 		events, err := dB.EventsFromIDs(ctx, eventsToFetch)
 		if err != nil {
 			return nil, err
 		}
 
-		// Work out a) which events we should add to the returned list of
+		// We've now fetched these events so clear out `eventsToFetch`. Soon we may
-		// events and b) which of the auth events we haven't seen yet and
+		// add newly discovered events to this for the next pass.
-		// add them to the list of events to fetch.
 		eventsToFetch = eventsToFetch[:0]
-		for _, event := range events {
-			fetchedEventMap[event.EventID()] = true
-			authEvents = append(authEvents, event.Event)
 
-			// Now we need to fetch any auth events that we haven't
+		for _, event := range events {
-			// previously seen.
+			// Store the event in the event map - this prevents us from requesting it
-			for _, authEventID := range event.AuthEventIDs() {
+			// from the database again.
-				if !fetchedEventMap[authEventID] {
+			authEventsMap[event.EventID()] = event.Event
-					fetchedEventMap[authEventID] = true
+
-					eventsToFetch = append(eventsToFetch, authEventID)
+			// Extract all of the auth events from the newly obtained event. If we
+			// don't already have a record of the event, record it in the list of
+			// events we want to request for the next pass.
+			for _, authEvent := range event.AuthEvents() {
+				if _, ok := authEventsMap[authEvent.EventID]; !ok {
+					eventsToFetch = append(eventsToFetch, authEvent.EventID)
 				}
 			}
 		}
 	}
 
+	// We've now retrieved all of the events we can. Flatten them down into an
+	// array and return them.
+	var authEvents []gomatrixserverlib.Event
+	for _, event := range authEventsMap {
+		authEvents = append(authEvents, event)
+	}
+
 	return authEvents, nil
 }
 

syncapi/routing/state.go

@@ -22,6 +22,7 @@ import (
 	"github.com/matrix-org/dendrite/clientapi/jsonerror"
 	"github.com/matrix-org/dendrite/syncapi/storage"
 	"github.com/matrix-org/dendrite/syncapi/types"
+	"github.com/matrix-org/gomatrix"
 	"github.com/matrix-org/gomatrixserverlib"
 	"github.com/matrix-org/util"
 	log "github.com/sirupsen/logrus"
@@ -44,7 +45,7 @@ func OnIncomingStateRequest(req *http.Request, db storage.Database, roomID strin
 	// TODO(#287): Auth request and handle the case where the user has left (where
 	// we should return the state at the poin they left)
 
-	stateFilterPart := gomatrixserverlib.DefaultFilterPart()
+	stateFilterPart := gomatrix.DefaultFilterPart()
 	// TODO: stateFilterPart should not limit the number of state events (or only limits abusive number of events)
 
 	stateEvents, err := db.GetStateEventsForRoom(req.Context(), roomID, &stateFilterPart)

syncapi/storage/postgres/account_data_table.go

@@ -21,7 +21,7 @@ import (
 
 	"github.com/lib/pq"
 	"github.com/matrix-org/dendrite/common"
-	"github.com/matrix-org/gomatrixserverlib"
+	"github.com/matrix-org/gomatrix"
 )
 
 const accountDataSchema = `
@@ -98,7 +98,7 @@ func (s *accountDataStatements) selectAccountDataInRange(
 	ctx context.Context,
 	userID string,
 	oldPos, newPos int64,
-	accountDataFilterPart *gomatrixserverlib.FilterPart,
+	accountDataFilterPart *gomatrix.FilterPart,
 ) (data map[string][]string, err error) {
 	data = make(map[string][]string)
 

syncapi/storage/postgres/current_room_state_table.go

@@ -22,6 +22,7 @@ import (
 
 	"github.com/lib/pq"
 	"github.com/matrix-org/dendrite/common"
+	"github.com/matrix-org/gomatrix"
 	"github.com/matrix-org/gomatrixserverlib"
 )
 
@@ -183,7 +184,7 @@ func (s *currentRoomStateStatements) selectRoomIDsWithMembership(
 // CurrentState returns all the current state events for the given room.
 func (s *currentRoomStateStatements) selectCurrentState(
 	ctx context.Context, txn *sql.Tx, roomID string,
-	stateFilterPart *gomatrixserverlib.FilterPart,
+	stateFilterPart *gomatrix.FilterPart,
 ) ([]gomatrixserverlib.Event, error) {
 	stmt := common.TxStmt(txn, s.selectCurrentStateStmt)
 	rows, err := stmt.QueryContext(ctx, roomID,

syncapi/storage/postgres/output_room_events_table.go

@@ -22,6 +22,7 @@ import (
 	"sort"
 
 	"github.com/matrix-org/dendrite/roomserver/api"
+	"github.com/matrix-org/gomatrix"
 
 	"github.com/lib/pq"
 	"github.com/matrix-org/dendrite/common"
@@ -127,7 +128,7 @@ func (s *outputRoomEventsStatements) prepare(db *sql.DB) (err error) {
 // two positions, only the most recent state is returned.
 func (s *outputRoomEventsStatements) selectStateInRange(
 	ctx context.Context, txn *sql.Tx, oldPos, newPos int64,
-	stateFilterPart *gomatrixserverlib.FilterPart,
+	stateFilterPart *gomatrix.FilterPart,
 ) (map[string]map[string]bool, map[string]streamEvent, error) {
 	stmt := common.TxStmt(txn, s.selectStateInRangeStmt)
 

syncapi/storage/postgres/syncserver.go

@@ -27,6 +27,7 @@ import (
 
 	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
 	"github.com/matrix-org/dendrite/roomserver/api"
+	"github.com/matrix-org/gomatrix"
 
 	// Import the postgres database driver.
 	_ "github.com/lib/pq"
@@ -186,7 +187,7 @@ func (d *SyncServerDatasource) GetStateEvent(
 // Returns an empty slice if no state events could be found for this room.
 // Returns an error if there was an issue with the retrieval.
 func (d *SyncServerDatasource) GetStateEventsForRoom(
-	ctx context.Context, roomID string, stateFilterPart *gomatrixserverlib.FilterPart,
+	ctx context.Context, roomID string, stateFilterPart *gomatrix.FilterPart,
 ) (stateEvents []gomatrixserverlib.Event, err error) {
 	err = common.WithTransaction(d.db, func(txn *sql.Tx) error {
 		stateEvents, err = d.roomstate.selectCurrentState(ctx, txn, roomID, stateFilterPart)
@@ -246,7 +247,7 @@ func (d *SyncServerDatasource) addPDUDeltaToResponse(
 	var succeeded bool
 	defer common.EndTransaction(txn, &succeeded)
 
-	stateFilterPart := gomatrixserverlib.DefaultFilterPart() // TODO: use filter provided in request
+	stateFilterPart := gomatrix.DefaultFilterPart() // TODO: use filter provided in request
 
 	// Work out which rooms to return in the response. This is done by getting not only the currently
 	// joined rooms, but also which rooms have membership transitions for this user between the 2 PDU stream positions.
@@ -411,7 +412,7 @@ func (d *SyncServerDatasource) getResponseWithPDUsForCompleteSync(
 		return
 	}
 
-	stateFilterPart := gomatrixserverlib.DefaultFilterPart() // TODO: use filter provided in request
+	stateFilterPart := gomatrix.DefaultFilterPart() // TODO: use filter provided in request
 
 	// Build up a /sync response. Add joined rooms.
 	for _, roomID := range joinedRoomIDs {
@@ -496,7 +497,7 @@ var txReadOnlySnapshot = sql.TxOptions{
 // If there was an issue with the retrieval, returns an error
 func (d *SyncServerDatasource) GetAccountDataInRange(
 	ctx context.Context, userID string, oldPos, newPos int64,
-	accountDataFilterPart *gomatrixserverlib.FilterPart,
+	accountDataFilterPart *gomatrix.FilterPart,
 ) (map[string][]string, error) {
 	return d.accountData.selectAccountDataInRange(ctx, userID, oldPos, newPos, accountDataFilterPart)
 }
@@ -743,7 +744,7 @@ func (d *SyncServerDatasource) fetchMissingStateEvents(
 func (d *SyncServerDatasource) getStateDeltas(
 	ctx context.Context, device *authtypes.Device, txn *sql.Tx,
 	fromPos, toPos int64, userID string,
-	stateFilterPart *gomatrixserverlib.FilterPart,
+	stateFilterPart *gomatrix.FilterPart,
 ) ([]stateDelta, []string, error) {
 	// Implement membership change algorithm: https://github.com/matrix-org/synapse/blob/v0.19.3/synapse/handlers/sync.py#L821
 	// - Get membership list changes for this user in this sync response
@@ -818,7 +819,7 @@ func (d *SyncServerDatasource) getStateDeltas(
 func (d *SyncServerDatasource) getStateDeltasForFullStateSync(
 	ctx context.Context, device *authtypes.Device, txn *sql.Tx,
 	fromPos, toPos int64, userID string,
-	stateFilterPart *gomatrixserverlib.FilterPart,
+	stateFilterPart *gomatrix.FilterPart,
 ) ([]stateDelta, []string, error) {
 	joinedRoomIDs, err := d.roomstate.selectRoomIDsWithMembership(ctx, txn, userID, gomatrixserverlib.Join)
 	if err != nil {
@@ -873,7 +874,7 @@ func (d *SyncServerDatasource) getStateDeltasForFullStateSync(
 
 func (d *SyncServerDatasource) currentStateStreamEventsForRoom(
 	ctx context.Context, txn *sql.Tx, roomID string,
-	stateFilterPart *gomatrixserverlib.FilterPart,
+	stateFilterPart *gomatrix.FilterPart,
 ) ([]streamEvent, error) {
 	allState, err := d.roomstate.selectCurrentState(ctx, txn, roomID, stateFilterPart)
 	if err != nil {

syncapi/storage/storage.go

@@ -25,6 +25,7 @@ import (
 	"github.com/matrix-org/dendrite/syncapi/storage/postgres"
 	"github.com/matrix-org/dendrite/syncapi/types"
 	"github.com/matrix-org/dendrite/typingserver/cache"
+	"github.com/matrix-org/gomatrix"
 	"github.com/matrix-org/gomatrixserverlib"
 )
 
@@ -34,11 +35,11 @@ type Database interface {
 	Events(ctx context.Context, eventIDs []string) ([]gomatrixserverlib.Event, error)
 	WriteEvent(ctx context.Context, ev *gomatrixserverlib.Event, addStateEvents []gomatrixserverlib.Event, addStateEventIDs, removeStateEventIDs []string, transactionID *api.TransactionID) (pduPosition int64, returnErr error)
 	GetStateEvent(ctx context.Context, roomID, evType, stateKey string) (*gomatrixserverlib.Event, error)
-	GetStateEventsForRoom(ctx context.Context, roomID string, stateFilterPart *gomatrixserverlib.FilterPart) (stateEvents []gomatrixserverlib.Event, err error)
+	GetStateEventsForRoom(ctx context.Context, roomID string, stateFilterPart *gomatrix.FilterPart) (stateEvents []gomatrixserverlib.Event, err error)
 	SyncPosition(ctx context.Context) (types.SyncPosition, error)
 	IncrementalSync(ctx context.Context, device authtypes.Device, fromPos, toPos types.SyncPosition, numRecentEventsPerRoom int, wantFullState bool) (*types.Response, error)
 	CompleteSync(ctx context.Context, userID string, numRecentEventsPerRoom int) (*types.Response, error)
-	GetAccountDataInRange(ctx context.Context, userID string, oldPos, newPos int64, accountDataFilterPart *gomatrixserverlib.FilterPart) (map[string][]string, error)
+	GetAccountDataInRange(ctx context.Context, userID string, oldPos, newPos int64, accountDataFilterPart *gomatrix.FilterPart) (map[string][]string, error)
 	UpsertAccountData(ctx context.Context, userID, roomID, dataType string) (int64, error)
 	AddInviteEvent(ctx context.Context, inviteEvent gomatrixserverlib.Event) (int64, error)
 	RetireInviteEvent(ctx context.Context, inviteEventID string) error

syncapi/sync/requestpool.go

@@ -24,6 +24,7 @@ import (
 	"github.com/matrix-org/dendrite/clientapi/jsonerror"
 	"github.com/matrix-org/dendrite/syncapi/storage"
 	"github.com/matrix-org/dendrite/syncapi/types"
+	"github.com/matrix-org/gomatrix"
 	"github.com/matrix-org/gomatrixserverlib"
 	"github.com/matrix-org/util"
 	log "github.com/sirupsen/logrus"
@@ -141,14 +142,14 @@ func (rp *RequestPool) currentSyncForUser(req syncRequest, latestPos types.SyncP
 		return
 	}
 
-	accountDataFilter := gomatrixserverlib.DefaultFilterPart() // TODO: use filter provided in req instead
+	accountDataFilter := gomatrix.DefaultFilterPart() // TODO: use filter provided in req instead
 	res, err = rp.appendAccountData(res, req.device.UserID, req, latestPos.PDUPosition, &accountDataFilter)
 	return
 }
 
 func (rp *RequestPool) appendAccountData(
 	data *types.Response, userID string, req syncRequest, currentPos int64,
-	accountDataFilter *gomatrixserverlib.FilterPart,
+	accountDataFilter *gomatrix.FilterPart,
 ) (*types.Response, error) {
 	// TODO: Account data doesn't have a sync position of its own, meaning that
 	// account data might be sent multiple time to the client if multiple account