From 07d27709957248008c61d6b8d553e3d2eb14d154 Mon Sep 17 00:00:00 2001
From: tobi <31960611+tsmethurst@users.noreply.github.com>
Date: Tue, 4 Feb 2025 16:52:42 +0100
Subject: [feature] Change `instance-stats-randomize` to `instance-stats-mode`
 with multiple options; implement nodeinfo 2.1 (#3734)

* [feature] Change `instance-stats-randomize` to `instance-stats-mode` with multiple options; implement nodeinfo 2.1

* swaggalaggadingdong
---
 internal/processing/fedi/wellknown.go | 50 ++++++++++++++++++++++++++---------
 1 file changed, 38 insertions(+), 12 deletions(-)

(limited to 'internal/processing')

diff --git a/internal/processing/fedi/wellknown.go b/internal/processing/fedi/wellknown.go
index ac92370c8..42a8e38e4 100644
--- a/internal/processing/fedi/wellknown.go
+++ b/internal/processing/fedi/wellknown.go
@@ -31,9 +31,11 @@ const (
 	hostMetaRel                     = "lrdd"
 	hostMetaType                    = "application/xrd+xml"
 	hostMetaTemplate                = ".well-known/webfinger?resource={uri}"
-	nodeInfoVersion                 = "2.0"
 	nodeInfoSoftwareName            = "gotosocial"
-	nodeInfoRel                     = "http://nodeinfo.diaspora.software/ns/schema/" + nodeInfoVersion
+	nodeInfo20Rel                   = "http://nodeinfo.diaspora.software/ns/schema/2.0"
+	nodeInfo21Rel                   = "http://nodeinfo.diaspora.software/ns/schema/2.1"
+	nodeInfoRepo                    = "https://github.com/superseriousbusiness/gotosocial"
+	nodeInfoHomepage                = "https://docs.gotosocial.org"
 	webfingerProfilePage            = "http://webfinger.net/rel/profile-page"
 	webFingerProfilePageContentType = "text/html"
 	webfingerSelf                   = "self"
@@ -56,27 +58,43 @@ func (p *Processor) NodeInfoRelGet(ctx context.Context) (*apimodel.WellKnownResp
 	return &apimodel.WellKnownResponse{
 		Links: []apimodel.Link{
 			{
-				Rel:  nodeInfoRel,
-				Href: fmt.Sprintf("%s://%s/nodeinfo/%s", protocol, host, nodeInfoVersion),
+				Rel:  nodeInfo20Rel,
+				Href: fmt.Sprintf("%s://%s/nodeinfo/2.0", protocol, host),
+			},
+			{
+				Rel:  nodeInfo21Rel,
+				Href: fmt.Sprintf("%s://%s/nodeinfo/2.1", protocol, host),
 			},
 		},
 	}, nil
 }
 
-// NodeInfoGet returns a node info struct in response to a node info request.
-func (p *Processor) NodeInfoGet(ctx context.Context) (*apimodel.Nodeinfo, gtserror.WithCode) {
+// NodeInfoGet returns a node info struct in response to a 2.0 or 2.1 node info request.
+func (p *Processor) NodeInfoGet(ctx context.Context, schemaVersion string) (*apimodel.Nodeinfo, gtserror.WithCode) {
+	const ()
+
 	var (
 		userCount int
 		postCount int
+		mau       int
 		err       error
 	)
 
-	if config.GetInstanceStatsRandomize() {
+	switch config.GetInstanceStatsMode() {
+
+	case config.InstanceStatsModeBaffle:
 		// Use randomized stats.
 		stats := p.converter.RandomStats()
 		userCount = int(stats.TotalUsers)
 		postCount = int(stats.Statuses)
-	} else {
+		mau = int(stats.MonthlyActiveUsers)
+
+	case config.InstanceStatsModeZero:
+		// Use zeroed stats
+		// (don't count anything).
+
+	default:
+		// Mode is either "serve" or "default".
 		// Count actual stats.
 		host := config.GetHost()
 
@@ -91,8 +109,8 @@ func (p *Processor) NodeInfoGet(ctx context.Context) (*apimodel.Nodeinfo, gtserr
 		}
 	}
 
-	return &apimodel.Nodeinfo{
-		Version: nodeInfoVersion,
+	nodeInfo := &apimodel.Nodeinfo{
+		Version: schemaVersion,
 		Software: apimodel.NodeInfoSoftware{
 			Name:    nodeInfoSoftwareName,
 			Version: config.GetSoftwareVersion(),
@@ -105,12 +123,20 @@ func (p *Processor) NodeInfoGet(ctx context.Context) (*apimodel.Nodeinfo, gtserr
 		OpenRegistrations: config.GetAccountsRegistrationOpen(),
 		Usage: apimodel.NodeInfoUsage{
 			Users: apimodel.NodeInfoUsers{
-				Total: userCount,
+				Total:       userCount,
+				ActiveMonth: mau,
 			},
 			LocalPosts: postCount,
 		},
 		Metadata: nodeInfoMetadata,
-	}, nil
+	}
+
+	if schemaVersion == "2.0" {
+		nodeInfo.Software.Repository = nodeInfoRepo
+		nodeInfo.Software.Homepage = nodeInfoHomepage
+	}
+
+	return nodeInfo, nil
 }
 
 // HostMetaGet returns a host-meta struct in response to a host-meta request.
-- 
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