feature/dwn sw js (#1103)

- **feat(macaroon): add  and  to macaroon genesis**
- **refactor: move schema definitions to dedicated file**
- **feat: remove Session model**
- **refactor: move session middleware to internal package**

internal/session/cookies.go

@@ -0,0 +1,41 @@
+package session
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/donseba/go-htmx"
+	"github.com/labstack/echo/v4"
+)
+
+type Session struct {
+	echo.Context
+	htmx *htmx.HTMX
+}
+
+func (c *Session) Htmx() *htmx.HTMX {
+	return c.htmx
+}
+
+func (c *Session) ID() string {
+	return ReadCookie(c, "session")
+}
+
+func ReadCookie(c echo.Context, key string) string {
+	cookie, err := c.Cookie(key)
+	if err != nil {
+		return ""
+	}
+	if cookie == nil {
+		return ""
+	}
+	return cookie.Value
+}
+
+func WriteCookie(c echo.Context, key string, value string) {
+	cookie := new(http.Cookie)
+	cookie.Name = key
+	cookie.Value = value
+	cookie.Expires = time.Now().Add(24 * time.Hour)
+	c.SetCookie(cookie)
+}

internal/session/middleware.go

@@ -0,0 +1,35 @@
+package session
+
+import (
+	"github.com/labstack/echo/v4"
+	"github.com/segmentio/ksuid"
+
+	"github.com/onsonr/sonr/internal/headers"
+)
+
+// GetSession returns the current Session
+func GetSession(c echo.Context) *Session {
+	return c.(*Session)
+}
+
+// UseSession establishes a Session Cookie.
+func UseSession(next echo.HandlerFunc) echo.HandlerFunc {
+	return func(c echo.Context) error {
+		sc := initSession(c)
+		headers := new(headers.RequestHeaders)
+		err := sc.Bind(headers)
+		if err != nil {
+			return err
+		}
+		return next(sc)
+	}
+}
+
+func initSession(c echo.Context) *Session {
+	s := &Session{Context: c}
+	if val := ReadCookie(c, "session"); val == "" {
+		id := ksuid.New().String()
+		WriteCookie(c, "session", id)
+	}
+	return s
+}