feat: updated server implementation

pkg/service/plugins.go

@@ -0,0 +1,120 @@
+package service
+
+import (
+	"encoding/json"
+	"io"
+	"net/http"
+	"os"
+
+	configurator "git.towk2.me/towk/configurator/pkg"
+)
+
+func (s *Service) ListPlugins() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var (
+			plugins map[string]configurator.Plugin
+			names   []string
+			body    []byte
+			err     error
+		)
+
+		plugins, err = LoadPluginsFromDir(s.PathForPlugins())
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		for name := range plugins {
+			names = append(names, name)
+		}
+
+		body, err = json.Marshal(names)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		w.Write(body)
+	}
+}
+
+func (s *Service) CreatePlugin() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var (
+			plugin configurator.Plugin
+			path   string
+			err    error
+		)
+
+		plugin, err = getPluginFromRequestBody(r)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		// helper to check for valid plugin name
+		var hasValidName = func(name string) bool {
+			return name != "" && len(name) < 64
+		}
+
+		// check for a valid plugin name
+		if !hasValidName(plugin.Name()) {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		// save plugin at path using it's name
+		path = s.PathForPluginWithName(plugin.Name())
+		err = SavePluginToFile(path, &plugin)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		w.WriteHeader(http.StatusOK)
+	}
+}
+
+func (s *Service) DeletePlugin() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var (
+			path   string
+			plugin configurator.Plugin
+			err    error
+		)
+
+		plugin, err = getPluginFromRequestBody(r)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		path = s.PathForPluginWithName(plugin.Name())
+		err = os.Remove(path)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		w.WriteHeader(http.StatusOK)
+	}
+}
+
+func getPluginFromRequestBody(r *http.Request) (configurator.Plugin, error) {
+	var (
+		plugin configurator.Plugin
+		body   []byte
+		err    error
+	)
+	body, err = io.ReadAll(r.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	err = json.Unmarshal(body, &plugin)
+	if err != nil {
+		return nil, err
+	}
+
+	return plugin, nil
+}