mirror of
https://codeberg.org/june64/mrvc.git
synced 2026-01-10 16:06:33 +01:00
419 lines
16 KiB
Go
419 lines
16 KiB
Go
package main
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import (
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"context"
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"fmt"
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"log"
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"slices"
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"sort"
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"strings"
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"sync"
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"github.com/hashicorp/go-version"
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"github.com/matrix-org/gomatrixserverlib/fclient"
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"github.com/matrix-org/gomatrixserverlib/spec"
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"maunium.net/go/mautrix"
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"maunium.net/go/mautrix/id"
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"codeberg.org/june64/mrvc/config"
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)
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type HomeserverServerVersionInfo struct {
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Homeserver string
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ServerVersionInfo fclient.Version
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}
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type ServerPath struct {
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MaxRoomVersion string
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Server string
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}
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type VersionPath struct {
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MaxRoomVersion string
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Server string
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Version string
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}
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var unknownServerVersionInfo = fclient.Version{
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Server: struct {
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Name string `json:"name"`
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Version string `json:"version"`
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}{
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Name: "unknown",
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Version: "unknown",
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},
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}
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func getServerVersionInfoByHomeserver(homeservers []string, federationClient *fclient.Client) map[string](fclient.Version) {
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homeserverChannel := make(chan string)
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go func() {
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for _, hs := range homeservers {
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homeserverChannel <- hs
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}
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close(homeserverChannel)
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}()
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homeserverSVInfoChannel := make(chan HomeserverServerVersionInfo)
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var wg sync.WaitGroup
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const numHomeserverSVInfoReceivers = 100
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wg.Add(numHomeserverSVInfoReceivers)
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for i := 0; i < numHomeserverSVInfoReceivers; i++ {
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go func() {
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for hs := range homeserverChannel {
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serverVersionInfo, err := federationClient.GetVersion(context.Background(), spec.ServerName(hs))
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if err != nil {
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serverVersionInfo = unknownServerVersionInfo
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}
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homeserverSVInfoChannel <- HomeserverServerVersionInfo{hs, serverVersionInfo}
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}
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wg.Done()
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}()
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}
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go func() {
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wg.Wait()
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close(homeserverSVInfoChannel)
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}()
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serverVersionInfoByHomeserver := make(map[string](fclient.Version))
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for homeserverSVInfo := range homeserverSVInfoChannel {
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serverVersionInfoByHomeserver[homeserverSVInfo.Homeserver] = homeserverSVInfo.ServerVersionInfo
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}
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return serverVersionInfoByHomeserver
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}
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// Gets the maximum supported room version for the given server-version-pair.
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func getMaxRoomVersion(serverVersionInfo fclient.Version) string {
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// Use only the first part of the version string as sometimes there are suffixes after a space, like " (<commit>)", which then can't be parsed.
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serverVersion, err := version.NewVersion(strings.Split(serverVersionInfo.Server.Version, " ")[0])
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if err != nil {
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return "unkown"
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}
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switch serverVersionInfo.Server.Name {
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case "Conduit":
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// https://conduit.rs/
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// https://conduit.rs/changelog/
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// https://gitlab.com/famedly/conduit
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switch {
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// https://conduit.rs/changelog/#v0-10-8-2025-08-11
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.10.8"))):
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return "v12"
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// https://conduit.rs/changelog/#v0-7-0-2024-04-25
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.7.0"))):
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return "v11"
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// https://conduit.rs/changelog/#v0-5-0-2022-12-21
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// Includes MR 400:
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// https://gitlab.com/famedly/conduit/-/merge_requests/400/commits
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// MR 400 includes a commit, which specifies v10 as stable.
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// https://gitlab.com/famedly/conduit/-/commit/1e1a144dfa98429ef9f02d16045796b73013830d
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.5.0"))):
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return "v10"
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// https://conduit.rs/changelog/#v0-4-0-2022-06-23
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// Includes MR 257:
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// https://gitlab.com/famedly/conduit/-/merge_requests/257/commits
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// MR 257 includes a commit, which specifies added support v7 to v9.
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// https://gitlab.com/famedly/conduit/-/commit/0ae39807a478370a769217d01fa33514299a2b35
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.4.0"))):
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return "v9"
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// https://conduit.rs/changelog/#v0-2-0-2021-09-01
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default:
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return "v6"
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}
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case "conduwuit", "Conduwuit":
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// Using continuwuitys source (history) as a reference:
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// https://forgejo.ellis.link/continuwuation/continuwuity
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// History from first commit on "continuwuity":
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// https://forgejo.ellis.link/continuwuation/continuwuity/commits/commit/e054a56b3286a6fb3091bedd5261089435ed26d1
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// Last commit on "conduwuit"/"Conduwuit":
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// https://forgejo.ellis.link/continuwuation/continuwuity/src/commit/d8311a5ff672fdc4729d956af5e3af8646b0670d
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// Last version was "0.5.0":
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// https://forgejo.ellis.link/continuwuation/continuwuity/src/commit/d8311a5ff672fdc4729d956af5e3af8646b0670d/Cargo.toml
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// Matching both "conduwuit" and "Conduwuit" as the capitalization got changed.
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// https://forgejo.ellis.link/continuwuation/continuwuity/commit/5b5ccba64e3d36a9235f4e0d449f40d859046dad
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switch {
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// Since the version went from "0.7.0-<something>" to "0.3.0" and the last version was "0.5.0", give all versions greater than "0.7.0" a lower max room version.
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// https://forgejo.ellis.link/continuwuation/continuwuity/commit/af0b81f5fb737d3550cf22fbcf8d8b8eb1947408
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.7.0"))):
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return "v10"
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// v11 support (shows there as included in tag "v0.3.0"):
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// https://forgejo.ellis.link/continuwuation/continuwuity/commit/223f05c922ea6f3085d386f0758df550459a25c3
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// Tag "v0.3.0":
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// https://forgejo.ellis.link/continuwuation/continuwuity/src/tag/v0.3.0/src/service/globals/mod.rs#L130
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.3.0"))):
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return "v11"
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// First version named "Conduwuit"/"conduwuit":
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// https://forgejo.ellis.link/continuwuation/continuwuity/commit/e71855cd0b59d9274e8528a4c1ee480f99006c3c
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// v10 support at first version named "Conduwuit"/"conduwuit":
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// https://forgejo.ellis.link/continuwuation/continuwuity/src/commit/e71855cd0b59d9274e8528a4c1ee480f99006c3c/src/service/globals/mod.rs#L187
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// And shows first version as "0.7.0-alpha+conduwuit-0.1.3":
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// https://forgejo.ellis.link/continuwuation/continuwuity/src/commit/e71855cd0b59d9274e8528a4c1ee480f99006c3c/Cargo.toml
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// Because of this versioning and the match on "0.7.0" before, this default should never match, but it is included for clarity.
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default:
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return "v10"
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}
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case "continuwuity":
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// https://continuwuity.org/
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// https://forgejo.ellis.link/continuwuation/continuwuity
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// First version named "continuwuity":
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// https://forgejo.ellis.link/continuwuation/continuwuity/commit/dc599db19c48ad3cbae15fc419c4a531d217ed05
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// v11 support at first version named "continuwuity":
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// https://forgejo.ellis.link/continuwuation/continuwuity/src/commit/dc599db19c48ad3cbae15fc419c4a531d217ed05/src/core/info/room_version.rs
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return "v11"
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case "Dendrite":
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// https://github.com/element-hq/dendrite
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// https://element-hq.github.io/dendrite/
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// https://github.com/element-hq/dendrite/blob/main/CHANGES.md
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switch {
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// https://github.com/element-hq/dendrite/blob/v0.15.0/CHANGES.md#dendrite-0150-2025-08-12
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.15.0"))):
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return "v12"
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// https://github.com/matrix-org/dendrite/blob/v0.13.3/CHANGES.md#dendrite-0133-2023-09-28
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.13.3"))):
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return "v11"
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// https://github.com/matrix-org/dendrite/blob/v0.8.7/CHANGES.md#dendrite-087-2022-06-01
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.8.7"))):
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return "v10"
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// https://github.com/matrix-org/dendrite/blob/v0.8.6/CHANGES.md#dendrite-086-2022-05-26
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.8.6"))):
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return "v9"
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// https://github.com/matrix-org/dendrite/blob/v0.8.6/CHANGES.md#dendrite-086-2022-05-26
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.8.6"))):
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return "v8"
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// https://github.com/matrix-org/dendrite/blob/v0.4.1/CHANGES.md#dendrite-041-2021-07-26
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.4.1"))):
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return "v7"
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// https://github.com/matrix-org/dendrite/blob/v0.1.0/CHANGES.md#dendrite-010-2020-10-08
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default:
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return "v6"
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}
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case "Synapse":
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// https://github.com/element-hq/synapse/
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// https://element-hq.github.io/synapse/latest/
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// https://github.com/element-hq/synapse/blob/develop/CHANGES.md
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// https://github.com/element-hq/synapse/blob/develop/docs/changelogs/
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switch {
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// https://github.com/element-hq/synapse/blob/v1.135.1/CHANGES.md#synapse-11351-2025-08-11
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("1.135.1"))):
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return "v12"
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// https://github.com/element-hq/synapse/blob/v1.89.0rc1/CHANGES.md#synapse-1890rc1-2023-07-25
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("1.89.0rc1"))):
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return "v11"
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// https://github.com/element-hq/synapse/blob/v1.64.0rc1/CHANGES.md#synapse-1640rc1-2022-07-26
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("1.64.0rc1"))):
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return "v10"
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// https://github.com/element-hq/synapse/blob/v1.42.0rc2/CHANGES.md#synapse-1420rc2-2021-09-06
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("1.42.0rc2"))):
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return "v9"
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// https://github.com/element-hq/synapse/blob/v1.40.0rc3/CHANGES.md#synapse-1400rc3-2021-08-09
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("1.40.0rc3"))):
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return "v8"
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// https://github.com/element-hq/synapse/blob/v1.37.0rc1/CHANGES.md#synapse-1370rc1-2021-06-24
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// https://github.com/matrix-org/synapse/pull/10167
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// https://github.com/matrix-org/synapse/pull/10167/files#diff-8e36e2fc4dec5d84357ee3d140ad223b66fb36e630c25bbb45382ca59cdb0f40
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("1.37.0rc1"))):
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return "v7"
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// https://github.com/element-hq/synapse/blob/v1.14.0rc1/CHANGES.md#synapse-1140rc1-2020-05-26
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("1.14.0rc1"))):
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return "v6"
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// https://github.com/element-hq/synapse/blob/v1.0.0rc1/CHANGES.md#synapse-100rc1-2019-06-07
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// https://github.com/matrix-org/synapse/pull/5354
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// https://github.com/matrix-org/synapse/pull/5354/files#diff-8e36e2fc4dec5d84357ee3d140ad223b66fb36e630c25bbb45382ca59cdb0f40
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("1.0.0rc1"))):
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return "v5"
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// https://github.com/element-hq/synapse/blob/v0.99.5rc1/CHANGES.md#synapse-0995rc1-2019-05-21
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.99.5rc1"))):
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return "v4"
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// https://github.com/element-hq/synapse/blob/v0.99.0rc1/CHANGES.md#synapse-0990rc1-2019-01-30
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.99.0rc1"))):
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return "v3"
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// https://github.com/element-hq/synapse/blob/v0.34.1rc1/CHANGES.md#synapse-0341rc1-2019-01-08
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// https://github.com/matrix-org/synapse/pull/4307
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// https://github.com/matrix-org/synapse/pull/4307/files#diff-32e0f096397b0e3545054c51c42b5be4f0db953083b60d76a047cb1618f6b877
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case serverVersion.GreaterThanOrEqual(version.Must(version.NewVersion("0.34.1rc1"))):
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return "v2"
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default:
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return "v1"
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}
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case "Tuwunel":
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// https://github.com/matrix-construct/tuwunel
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// First version named "Tuwunel":
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// https://github.com/matrix-construct/tuwunel/commit/9b658d86b2f49d01ba8d2f5ae7f263a104e8f282#diff-d58f31e506570d0bcb7629251ec1b350c5dde4a205a338349f154f3fd3187e93
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// v11 support at first version named "Tuwunel":
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// https://github.com/matrix-construct/tuwunel/blob/9b658d86b2f49d01ba8d2f5ae7f263a104e8f282/src/core/info/room_version.rs
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return "v11"
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default:
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return "unkown"
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}
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}
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func compareVersionStrings(a, b string) int {
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// Try to parse a and b as versions.
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// Use only the first part of the version string as sometimes there are suffixes after a space, like " (<commit>)", which then can't be parsed.
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aStart := strings.Split(a, " ")[0]
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bStart := strings.Split(b, " ")[0]
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aVersion, aErr := version.NewVersion(aStart)
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bVersion, bErr := version.NewVersion(bStart)
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// An input, which can't be parsed as a version, should be interpreted as being smaller than an input, which can be parsed as a version.
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switch {
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case aErr != nil && bErr == nil:
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return -1
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case aErr == nil && bErr != nil:
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return 1
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case aErr != nil && bErr != nil:
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return strings.Compare(a, b)
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}
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if cmpResult := aVersion.Compare(bVersion); cmpResult != 0 {
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return cmpResult
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} else {
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// When the versions are equal, look at the potential suffixes in the version string.
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aEnd := strings.TrimPrefix(a, aStart)
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bEnd := strings.TrimPrefix(b, bStart)
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return strings.Compare(aEnd, bEnd)
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}
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}
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func main() {
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config := config.Get()
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userId := id.UserID(config.UserID)
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_, homeserver, err := userId.ParseAndValidate()
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if err != nil {
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log.Fatal(err)
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}
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client, err := mautrix.NewClient(
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homeserver,
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userId,
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config.Token,
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)
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if err != nil {
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log.Fatal(err)
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}
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federationClient := fclient.NewClient(
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fclient.WithWellKnownSRVLookups(true),
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fclient.WithTimeout(config.HomeserverVersionInfoTimeout),
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)
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var roomId id.RoomID
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// Check, if given room is an alias and try to resolve it into a room id.
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if strings.HasPrefix(config.Room, "#") {
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resolvedAlias, err := client.ResolveAlias(context.Background(), id.RoomAlias(config.Room))
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if err != nil {
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log.Fatal(err)
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}
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roomId = resolvedAlias.RoomID
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} else {
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roomId = id.RoomID(config.Room)
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}
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joinedMembers, err := client.JoinedMembers(context.Background(), roomId)
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if err != nil {
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log.Fatal(err)
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}
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membersByHomeservers := make(map[string]uint)
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for key := range joinedMembers.Joined {
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membersByHomeservers[key.Homeserver()]++
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}
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homeservers := make([]string, 0, len(membersByHomeservers))
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for hs := range membersByHomeservers {
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homeservers = append(homeservers, hs)
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}
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serverVersionInfoByHomeserver := getServerVersionInfoByHomeserver(homeservers, federationClient)
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// Info map tree.
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maxRoomVersionInfo := make(map[string](map[string](map[string](map[string]uint))))
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// Member counters.
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membersByMaxRoomVersion := make(map[string]uint)
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membersByServerPath := make(map[ServerPath]uint)
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membersByVersionPath := make(map[VersionPath]uint)
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for key, value := range membersByHomeservers {
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serverVersionInfo := serverVersionInfoByHomeserver[key]
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maxRoomVersion := getMaxRoomVersion(serverVersionInfo)
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// Add to counters.
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membersByMaxRoomVersion[maxRoomVersion] += value
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membersByServerPath[ServerPath{maxRoomVersion, serverVersionInfo.Server.Name}] += value
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membersByVersionPath[VersionPath{maxRoomVersion, serverVersionInfo.Server.Name, serverVersionInfo.Server.Version}] += value
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// Sort into maxRoomVersionInfo map tree.
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serverMap, ok := maxRoomVersionInfo[maxRoomVersion]
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if !ok {
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serverMap = make(map[string](map[string](map[string]uint)))
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maxRoomVersionInfo[maxRoomVersion] = serverMap
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}
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versionMap, ok := serverMap[serverVersionInfo.Server.Name]
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if !ok {
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versionMap = make(map[string](map[string]uint))
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serverMap[serverVersionInfo.Server.Name] = versionMap
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}
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homeserverMap, ok := versionMap[serverVersionInfo.Server.Version]
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if !ok {
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homeserverMap = make(map[string]uint)
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versionMap[serverVersionInfo.Server.Version] = homeserverMap
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}
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homeserverMap[key] = value
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}
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fmt.Println("Room:")
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fmt.Printf("%s -> %d\n\n", config.Room, len(joinedMembers.Joined))
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fmt.Println("Version Support:")
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maxRoomVersionKeys := make([]string, 0, len(maxRoomVersionInfo))
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for key := range maxRoomVersionInfo {
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maxRoomVersionKeys = append(maxRoomVersionKeys, key)
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}
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slices.SortFunc(maxRoomVersionKeys, compareVersionStrings)
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for _, maxRoomVersionKey := range maxRoomVersionKeys {
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|
maxRoomVersionValue := maxRoomVersionInfo[maxRoomVersionKey]
|
|
|
|
fmt.Printf("%s -> %d\n", maxRoomVersionKey, membersByMaxRoomVersion[maxRoomVersionKey])
|
|
|
|
serverKeys := make([]string, 0, len(maxRoomVersionValue))
|
|
for key := range maxRoomVersionValue {
|
|
serverKeys = append(serverKeys, key)
|
|
}
|
|
sort.Strings(serverKeys)
|
|
for _, serverKey := range serverKeys {
|
|
serverValue := maxRoomVersionValue[serverKey]
|
|
|
|
fmt.Printf(" %s -> %d\n", serverKey, membersByServerPath[ServerPath{maxRoomVersionKey, serverKey}])
|
|
|
|
versionKeys := make([]string, 0, len(serverValue))
|
|
for key := range serverValue {
|
|
versionKeys = append(versionKeys, key)
|
|
}
|
|
slices.SortFunc(versionKeys, compareVersionStrings)
|
|
for _, versionKey := range versionKeys {
|
|
versionValue := serverValue[versionKey]
|
|
|
|
fmt.Printf(" %s -> %d\n", versionKey, membersByVersionPath[VersionPath{maxRoomVersionKey, serverKey, versionKey}])
|
|
|
|
if config.PrintHomeserverMemberCount {
|
|
homeserverKeys := make([]string, 0, len(versionValue))
|
|
for key := range versionValue {
|
|
homeserverKeys = append(homeserverKeys, key)
|
|
}
|
|
sort.Strings(homeserverKeys)
|
|
for _, homeserverKey := range homeserverKeys {
|
|
homeserverValue := versionValue[homeserverKey]
|
|
|
|
fmt.Printf(" %s -> %d\n", homeserverKey, homeserverValue)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|