Initial API

Signed-off-by: Knut Ahlers <knut@ahlers.me>

api.go

@@ -0,0 +1,82 @@
+package main
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/gorilla/mux"
+)
+
+type apiServer struct {
+	store storage
+}
+
+func newAPI(s storage) *apiServer {
+	return &apiServer{
+		store: s,
+	}
+}
+
+func (a apiServer) Register(r *mux.Router) {
+	r.HandleFunc("/create", a.handleCreate)
+	r.HandleFunc("/get/{id}", a.handleRead)
+}
+
+func (a apiServer) handleCreate(res http.ResponseWriter, r *http.Request) {
+	secret := r.FormValue("secret")
+	if secret == "" {
+		a.jsonResponse(res, http.StatusBadRequest, map[string]interface{}{
+			"success": false,
+			"error":   "Secret missing",
+		})
+		return
+	}
+
+	id, err := a.store.Create(secret)
+	if err != nil {
+		a.jsonResponse(res, http.StatusInternalServerError, map[string]interface{}{
+			"success": false,
+			"error":   err.Error(),
+		})
+		return
+	}
+
+	a.jsonResponse(res, http.StatusCreated, map[string]interface{}{
+		"success":   true,
+		"secret_id": id,
+	})
+}
+
+func (a apiServer) handleRead(res http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+	id := vars["id"]
+	if id == "" {
+		a.jsonResponse(res, http.StatusBadRequest, map[string]interface{}{
+			"success": false,
+			"error":   "ID missing",
+		})
+		return
+	}
+
+	secret, err := a.store.ReadAndDestroy(id)
+	if err != nil {
+		a.jsonResponse(res, http.StatusInternalServerError, map[string]interface{}{
+			"success": false,
+			"error":   err.Error(),
+		})
+		return
+	}
+
+	a.jsonResponse(res, http.StatusOK, map[string]interface{}{
+		"success": true,
+		"secret":  secret,
+	})
+}
+
+func (a apiServer) jsonResponse(res http.ResponseWriter, status int, response map[string]interface{}) {
+	res.Header().Set("Content-Type", "application/json")
+	res.Header().Set("Cache-Control", "no-cache")
+	res.WriteHeader(status)
+
+	json.NewEncoder(res).Encode(response)
+}