auth middleware

src/server/middleware.go

@@ -0,0 +1,57 @@
+package server
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/nkanaev/yarr/src/assets"
+	"github.com/nkanaev/yarr/src/auth"
+	"github.com/nkanaev/yarr/src/router"
+)
+
+type authMiddleware struct {
+	username string
+	password string
+	basepath string
+	public   string
+}
+
+func (m *authMiddleware) handler(c *router.Context) {
+	basepath := m.basepath
+	if basepath == "" {
+		basepath = "/"
+	}
+
+	if strings.HasPrefix(c.Req.URL.Path, m.public) {
+		c.Next()
+		return
+	}
+	if auth.IsAuthenticated(c.Req, m.username, m.password) {
+		c.Next()
+		return
+	}
+
+	if c.Req.URL.Path != basepath {
+		// TODO: check ajax
+		c.Out.WriteHeader(http.StatusForbidden)
+		return
+	}
+
+	if c.Req.Method == "POST" {
+		username := c.Req.FormValue("username")
+		password := c.Req.FormValue("password")
+		if auth.StringsEqual(username, m.username) && auth.StringsEqual(password, m.password) {
+			auth.Authenticate(c.Out, m.username, m.password, m.basepath)
+			c.Redirect(m.basepath)
+			return
+		} else {
+			// TODO: show error
+			c.Out.Header().Set("Content-Type", "text/html")
+			assets.Render("login.html", c.Out, nil)
+			return
+		}
+	}
+
+	c.Out.Header().Set("Content-Type", "text/html")
+	assets.Render("login.html", c.Out, nil)
+}