Expose registered process tags via API

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
+}

process/module.go

@@ -26,5 +26,9 @@ func start() error {
 		updatesPath += string(os.PathSeparator)
 	}
 
+	if err := registerAPIEndpoints(); err != nil {
+		return err
+	}
+
 	return nil
 }