grouping community and conference routes and making more functionality implemented by middleware

ui/middleware.go

@@ -0,0 +1,89 @@
+/*
+ * Amsterdam Web Communities System
+ * Copyright (c) 2025 Erbosoft Metaverse Design Solutions, All Rights Reserved
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+// Package ui holds the support for the Amsterdam user interface, wrapping Echo and Jet templates.
+package ui
+
+import (
+	"net/http"
+	"net/url"
+
+	"git.erbosoft.com/amy/amsterdam/config"
+	"git.erbosoft.com/amy/amsterdam/database"
+	"github.com/labstack/echo/v4"
+	log "github.com/sirupsen/logrus"
+)
+
+// IPBanTest is middleware that handles the IP banning.
+func IPBanTest(next echo.HandlerFunc) echo.HandlerFunc {
+	return func(c echo.Context) error {
+		// Check IP banning.
+		banmsg, banerr := database.AmTestIPBan(c.RealIP())
+		if banerr != nil {
+			c.Logger().Warnf("address %s could not be tested: %v", c.RealIP(), banerr)
+			// but let the request pass anyway
+		} else if banmsg != "" {
+			amctxt := AmContextFromEchoContext(c)
+			amctxt.VarMap().Set("amsterdam_pageTitle", "IP Address Banned")
+			amctxt.VarMap().Set("message", banmsg)
+			amctxt.SetRC(http.StatusForbidden)
+			return AmSendPageData(c, amctxt, "framed_template", "ipban.jet")
+		}
+		return next(c)
+	}
+}
+
+// CookieLoginTest is middleware that handles cookie logins.
+func CookieLoginTest(next echo.HandlerFunc) echo.HandlerFunc {
+	return func(c echo.Context) error {
+		amctxt := AmContextFromEchoContext(c)
+		// Check for cookie login.
+		if amctxt.CurrentUser().IsAnon {
+			cookie, err := c.Cookie(config.GlobalConfig.Site.LoginCookieName)
+			if err == nil {
+				var user *database.User
+				user, err = database.AmAuthenticateUserByToken(cookie.Value, c.RealIP())
+				if err == nil {
+					// log the user in and rotate login cookie
+					amctxt.ReplaceUser(user)
+					var newToken string
+					if newToken, err = user.NewAuthToken(); err == nil {
+						amctxt.SetLoginCookie(newToken)
+					} else {
+						log.Warnf("unable to rotate login cookie: %v", err)
+					}
+					if !user.VerifyEMail {
+						// bounce to E-mail verification before we go anywhere
+						return AmSendPageData(c, amctxt, "redirect",
+							"/verify?tgt="+url.QueryEscape(c.Request().URL.Path))
+					}
+				} else {
+					log.Errorf("login cookie bogus, do not use: %v", err)
+					amctxt.ClearLoginCookie()
+				}
+			}
+		}
+		return next(c)
+	}
+}
+
+// SetCommunity is middleware that sets the community context based on the URL.
+func SetCommunity(next echo.HandlerFunc) echo.HandlerFunc {
+	return func(c echo.Context) error {
+		ctxt := AmContextFromEchoContext(c)
+		err := ctxt.SetCommunityContext(ctxt.URLParam("cid"))
+		if err != nil {
+			ctxt.SetRC(http.StatusNotFound)
+			cmd, data, _ := ErrorPage(ctxt, err)
+			return AmSendPageData(c, ctxt, cmd, data)
+		}
+		ctxt.SetLeftMenu("community")
+		return next(c)
+	}
+}