From 370522e7cfa219e81bab9cd2e7554ea6e427c354 Mon Sep 17 00:00:00 2001
From: jkoberg <jkoberg@owncloud.com>
Date: Mon, 15 Apr 2024 15:48:20 +0200
Subject: [PATCH] feat(clientlog): space/share created/removed sse

Signed-off-by: jkoberg <jkoberg@owncloud.com>
---
 changelog/unreleased/sharing-sse.md       |  5 ++++
 services/clientlog/pkg/command/server.go  |  4 ++++
 services/clientlog/pkg/service/service.go | 29 +++++++++++++++++++----
 3 files changed, 33 insertions(+), 5 deletions(-)
 create mode 100644 changelog/unreleased/sharing-sse.md

diff --git a/changelog/unreleased/sharing-sse.md b/changelog/unreleased/sharing-sse.md
new file mode 100644
index 0000000000..3a3a2d7d86
--- /dev/null
+++ b/changelog/unreleased/sharing-sse.md
@@ -0,0 +1,5 @@
+Enhancement: Sharing SSEs
+
+Added server side events for item moved, share created/removed, space membership created/removed, share/space membership updated.
+
+https://github.com/owncloud/ocis/pull/8854
diff --git a/services/clientlog/pkg/command/server.go b/services/clientlog/pkg/command/server.go
index f3cab7adae..0fcbf60959 100644
--- a/services/clientlog/pkg/command/server.go
+++ b/services/clientlog/pkg/command/server.go
@@ -33,6 +33,10 @@ var _registeredEvents = []events.Unmarshaller{
 	events.FileLocked{},
 	events.FileUnlocked{},
 	events.FileTouched{},
+	events.SpaceShared{},
+	events.SpaceUnshared{},
+	events.ShareCreated{},
+	events.ShareRemoved{},
 }
 
 // Server is the entrypoint for the server command.
diff --git a/services/clientlog/pkg/service/service.go b/services/clientlog/pkg/service/service.go
index 717104e75e..47fe6df688 100644
--- a/services/clientlog/pkg/service/service.go
+++ b/services/clientlog/pkg/service/service.go
@@ -8,6 +8,8 @@ import (
 	"reflect"
 
 	gateway "github.com/cs3org/go-cs3apis/cs3/gateway/v1beta1"
+	group "github.com/cs3org/go-cs3apis/cs3/identity/group/v1beta1"
+	user "github.com/cs3org/go-cs3apis/cs3/identity/user/v1beta1"
 	rpc "github.com/cs3org/go-cs3apis/cs3/rpc/v1beta1"
 	provider "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
 	"go.opentelemetry.io/otel/trace"
@@ -90,11 +92,6 @@ func (cl *ClientlogService) processEvent(event events.Event) {
 		return
 	}
 
-	gwc, err = cl.gatewaySelector.Next()
-	if err != nil {
-		cl.log.Error().Err(err).Interface("event", event).Msg("error getting gateway client")
-		return
-	}
 	var (
 		users  []string
 		evType string
@@ -160,6 +157,19 @@ func (cl *ClientlogService) processEvent(event events.Event) {
 		p("file-unlocked", e.Ref)
 	case events.FileTouched:
 		p("file-touched", e.Ref)
+	case events.SpaceShared:
+		r, _ := storagespace.ParseReference(e.ID.GetOpaqueId())
+		p("space-member-added", &r)
+	case events.SpaceUnshared:
+		r, _ := storagespace.ParseReference(e.ID.GetOpaqueId())
+		p("space-member-removed", &r)
+		users, err = addSharees(ctx, users, gwc, e.GranteeUserID, e.GranteeGroupID)
+	case events.ShareCreated:
+		p("share-created", &provider.Reference{ResourceId: e.ItemID})
+		users, err = addSharees(ctx, users, gwc, e.GranteeUserID, e.GranteeGroupID)
+	case events.ShareRemoved:
+		p("share-removed", &provider.Reference{ResourceId: e.ItemID})
+		users, err = addSharees(ctx, users, gwc, e.GranteeUserID, e.GranteeGroupID)
 	}
 
 	if err != nil {
@@ -204,3 +214,12 @@ func processFileEvent(ctx context.Context, ref *provider.Reference, gwc gateway.
 	users, err := utils.GetSpaceMembers(ctx, info.GetSpace().GetId().GetOpaqueId(), gwc, utils.ViewerRole)
 	return users, data, err
 }
+
+// adds userid to users slice or gets members of groupid and adds them to users slice
+func addSharees(ctx context.Context, users []string, gwc gateway.GatewayAPIClient, uid *user.UserId, gid *group.GroupId) ([]string, error) {
+	if uid != nil {
+		return append(users, uid.GetOpaqueId()), nil
+	}
+	us, err := utils.GetGroupMembers(ctx, gid.GetOpaqueId(), gwc)
+	return append(users, us...), err
+}