feature (plugins): expand and migrate plugin - #803

* chore (dockerfile): cleanup dockerfile

* feature (plugin): extend plugin interface

* chore (docker): setup new Dockerfile

* chore (dockerfile): update dockerfile

server/ctrl/plugin.go

@@ -0,0 +1,57 @@
+package ctrl
+
+import (
+	"io"
+	"net/http"
+	"os"
+
+	. "github.com/mickael-kerjean/filestash/server/common"
+	"github.com/mickael-kerjean/filestash/server/model"
+
+	"github.com/gorilla/mux"
+)
+
+func init() {
+	Hooks.Register.Onload(func() {
+		if err := model.PluginDiscovery(); err != nil {
+			Log.Error("Plugin Discovery failed. err=%s", err.Error())
+			os.Exit(1)
+		}
+	})
+}
+
+func PluginExportHandler(ctx *App, res http.ResponseWriter, req *http.Request) {
+	plgExports := map[string][]string{}
+	for name, plg := range model.PLUGINS {
+		for _, module := range plg.Modules {
+			if module["type"] == "xdg-open" {
+				index := module["entrypoint"]
+				if index == "" {
+					index = "/index.js"
+				}
+				plgExports[module["mime"]] = []string{
+					module["application"],
+					WithBase(JoinPath("/plugin/", name+index)),
+				}
+			}
+		}
+	}
+	SendSuccessResult(res, plgExports)
+}
+
+func PluginStaticHandler(ctx *App, res http.ResponseWriter, req *http.Request) {
+	path := mux.Vars(req)["path"]
+	mtype := GetMimeType(path)
+	file, err := model.GetPluginFile(mux.Vars(req)["name"], path)
+	if err != nil {
+		SendErrorResult(res, err)
+		return
+	}
+	defer file.Close()
+	res.Header().Set("Content-Type", mtype)
+	_, err = io.Copy(res, file)
+	if err != nil {
+		SendErrorResult(res, err)
+		return
+	}
+}