feat(global): introduce user teams and new UAC system (#868)

api/http/handler/templates.go

@@ -0,0 +1,73 @@
+package handler
+
+import (
+	"io/ioutil"
+	"log"
+	"net/http"
+	"os"
+
+	"github.com/gorilla/mux"
+	httperror "github.com/portainer/portainer/http/error"
+	"github.com/portainer/portainer/http/security"
+)
+
+// TemplatesHandler represents an HTTP API handler for managing templates.
+type TemplatesHandler struct {
+	*mux.Router
+	Logger                *log.Logger
+	containerTemplatesURL string
+}
+
+const (
+	containerTemplatesURLLinuxServerIo = "http://tools.linuxserver.io/portainer.json"
+)
+
+// NewTemplatesHandler returns a new instance of TemplatesHandler.
+func NewTemplatesHandler(bouncer *security.RequestBouncer, containerTemplatesURL string) *TemplatesHandler {
+	h := &TemplatesHandler{
+		Router:                mux.NewRouter(),
+		Logger:                log.New(os.Stderr, "", log.LstdFlags),
+		containerTemplatesURL: containerTemplatesURL,
+	}
+	h.Handle("/templates",
+		bouncer.AuthenticatedAccess(http.HandlerFunc(h.handleGetTemplates)))
+	return h
+}
+
+// handleGetTemplates handles GET requests on /templates?key=<key>
+func (handler *TemplatesHandler) handleGetTemplates(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		httperror.WriteMethodNotAllowedResponse(w, []string{http.MethodGet})
+		return
+	}
+
+	key := r.FormValue("key")
+	if key == "" {
+		httperror.WriteErrorResponse(w, ErrInvalidQueryFormat, http.StatusBadRequest, handler.Logger)
+		return
+	}
+
+	var templatesURL string
+	if key == "containers" {
+		templatesURL = handler.containerTemplatesURL
+	} else if key == "linuxserver.io" {
+		templatesURL = containerTemplatesURLLinuxServerIo
+	} else {
+		httperror.WriteErrorResponse(w, ErrInvalidQueryFormat, http.StatusBadRequest, handler.Logger)
+		return
+	}
+
+	resp, err := http.Get(templatesURL)
+	if err != nil {
+		httperror.WriteErrorResponse(w, err, http.StatusInternalServerError, handler.Logger)
+		return
+	}
+	defer resp.Body.Close()
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		httperror.WriteErrorResponse(w, err, http.StatusInternalServerError, handler.Logger)
+		return
+	}
+	w.Header().Set("Content-Type", "application/json")
+	w.Write(body)
+}