put shared code into own mod (common), + apicontext env vars

api/utils.go

@@ -0,0 +1,96 @@
+/*
+Copyright © 2023 Thomas von Dein
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package api
+
+import (
+	"fmt"
+	"github.com/gofiber/fiber/v2"
+	"github.com/tlinden/cenophane/cfg"
+	"github.com/tlinden/cenophane/common"
+	"time"
+)
+
+const ApiVersion string = "/v1"
+
+// Binding from JSON, data coming from user, not tainted
+type Meta struct {
+	Expire string `json:"expire" form:"expire"`
+}
+
+// incoming id
+type Id struct {
+	Id string `json:"name" xml:"name" form:"name"`
+}
+
+// vaious helbers
+func Log(format string, values ...any) {
+	fmt.Printf("[DEBUG] "+format+"\n", values...)
+}
+
+func Ts() string {
+	t := time.Now()
+	return t.Format("2006-01-02-15-04-")
+}
+
+/*
+   Retrieve the  API Context  name from the  session, assuming  is has
+   been  successfully  authenticated. However,  if  there  are no  api
+   contexts     defined,    we'll     use     'default'    (set     in
+   auth.validateAPIKey()).
+
+   If there's no apicontext in the session, assume unauth user, return ""
+*/
+func GetApicontext(c *fiber.Ctx) (string, error) {
+	sess, err := Sessionstore.Get(c)
+	if err != nil {
+		return "", fmt.Errorf("Unable to initialize session store from context: " + err.Error())
+	}
+
+	apicontext := sess.Get("apicontext")
+	if apicontext != nil {
+		return apicontext.(string), nil
+	}
+
+	return "", nil
+}
+
+/*
+   Calculate   if  time   is   up  based   on   start  time.Time   and
+   duration. Returns  true if time  is expired. Start time  comes from
+   the database.
+
+aka:
+   if(now - start) >= duration { time is up}
+*/
+func IsExpired(conf *cfg.Config, start time.Time, duration string) bool {
+	var expiretime int // seconds
+
+	now := time.Now()
+
+	if duration == "asap" {
+		expiretime = conf.DefaultExpire
+	} else {
+		expiretime = common.Duration2int(duration)
+	}
+
+	if now.Unix()-start.Unix() >= int64(expiretime) {
+		return true
+	}
+
+	return false
+}