From c4943a96b1ae3995c4c83002f68380f60cf389b5 Mon Sep 17 00:00:00 2001
From: Daniel <dhaavi@users.noreply.github.com>
Date: Tue, 4 Oct 2022 12:53:42 +0200
Subject: [PATCH] Expose registered process tags via API

---
 process/api.go    | 39 +++++++++++++++++++++++++++++++++++++++
 process/module.go |  4 ++++
 2 files changed, 43 insertions(+)
 create mode 100644 process/api.go

diff --git a/process/api.go b/process/api.go
new file mode 100644
index 00000000..2e37502d
--- /dev/null
+++ b/process/api.go
@@ -0,0 +1,39 @@
+package process
+
+import (
+	"github.com/safing/portbase/api"
+)
+
+func registerAPIEndpoints() error {
+	if err := api.RegisterEndpoint(api.Endpoint{
+		Path:        "process/tags",
+		Read:        api.PermitUser,
+		BelongsTo:   module,
+		StructFunc:  handleProcessTagMetadata,
+		Name:        "Get Process Tag Metadata",
+		Description: "Get information about process tags.",
+	}); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func handleProcessTagMetadata(ar *api.Request) (i interface{}, err error) {
+	tagRegistryLock.Lock()
+	defer tagRegistryLock.Unlock()
+
+	// Create response struct.
+	resp := struct {
+		Tags []TagDescription
+	}{
+		Tags: make([]TagDescription, 0, len(tagRegistry)*2),
+	}
+
+	// Get all tag descriptions.
+	for _, th := range tagRegistry {
+		resp.Tags = append(resp.Tags, th.TagDescriptions()...)
+	}
+
+	return resp, nil
+}
diff --git a/process/module.go b/process/module.go
index a530bd21..b33be8ca 100644
--- a/process/module.go
+++ b/process/module.go
@@ -26,5 +26,9 @@ func start() error {
 		updatesPath += string(os.PathSeparator)
 	}
 
+	if err := registerAPIEndpoints(); err != nil {
+		return err
+	}
+
 	return nil
 }