修复 「1.2.2 用户管理-用户列表勾选单一用户会全选 」 close #216

server/app/middleware.go

@@ -0,0 +1,166 @@
+package app
+
+import (
+	"fmt"
+	"net"
+	"strings"
+
+	"next-terminal/server/api"
+	"next-terminal/server/constant"
+	"next-terminal/server/dto"
+	"next-terminal/server/global/cache"
+	"next-terminal/server/global/security"
+	"next-terminal/server/utils"
+
+	"github.com/labstack/echo/v4"
+)
+
+func ErrorHandler(next echo.HandlerFunc) echo.HandlerFunc {
+	return func(c echo.Context) error {
+
+		if err := next(c); err != nil {
+
+			if he, ok := err.(*echo.HTTPError); ok {
+				message := fmt.Sprintf("%v", he.Message)
+				return api.Fail(c, he.Code, message)
+			}
+
+			return api.Fail(c, 0, err.Error())
+		}
+		return nil
+	}
+}
+
+func TcpWall(next echo.HandlerFunc) echo.HandlerFunc {
+
+	return func(c echo.Context) error {
+		securities := security.GlobalSecurityManager.Values()
+		if len(securities) == 0 {
+			return next(c)
+		}
+
+		ip := c.RealIP()
+
+		for _, s := range securities {
+			if strings.Contains(s.IP, "/") {
+				// CIDR
+				_, ipNet, err := net.ParseCIDR(s.IP)
+				if err != nil {
+					continue
+				}
+				if !ipNet.Contains(net.ParseIP(ip)) {
+					continue
+				}
+			} else if strings.Contains(s.IP, "-") {
+				// 范围段
+				split := strings.Split(s.IP, "-")
+				if len(split) < 2 {
+					continue
+				}
+				start := split[0]
+				end := split[1]
+				intReqIP := utils.IpToInt(ip)
+				if intReqIP < utils.IpToInt(start) || intReqIP > utils.IpToInt(end) {
+					continue
+				}
+			} else {
+				// IP
+				if s.IP != ip {
+					continue
+				}
+			}
+
+			if s.Rule == constant.AccessRuleAllow {
+				return next(c)
+			}
+			if s.Rule == constant.AccessRuleReject {
+				if c.Request().Header.Get("X-Requested-With") != "" || c.Request().Header.Get(constant.Token) != "" {
+					return api.Fail(c, 0, "您的访问请求被拒绝 :(")
+				} else {
+					return c.HTML(666, "您的访问请求被拒绝 :(")
+				}
+			}
+		}
+
+		return next(c)
+	}
+}
+
+var anonymousUrls = []string{"/login", "/static", "/favicon.ico", "/logo.svg", "/asciinema"}
+
+func Auth(next echo.HandlerFunc) echo.HandlerFunc {
+
+	return func(c echo.Context) error {
+
+		uri := c.Request().RequestURI
+		if uri == "/" || strings.HasPrefix(uri, "/#") {
+			return next(c)
+		}
+		// 路由拦截 - 登录身份、资源权限判断等
+		for i := range anonymousUrls {
+			if strings.HasPrefix(uri, anonymousUrls[i]) {
+				return next(c)
+			}
+		}
+
+		token := api.GetToken(c)
+		if token == "" {
+			return api.Fail(c, 401, "您的登录信息已失效，请重新登录后再试。")
+		}
+
+		v, found := cache.TokenManager.Get(token)
+		if !found {
+			return api.Fail(c, 401, "您的登录信息已失效，请重新登录后再试。")
+		}
+
+		authorization := v.(dto.Authorization)
+
+		if strings.EqualFold(constant.LoginToken, authorization.Type) {
+			if authorization.Remember {
+				// 记住登录有效期两周
+				cache.TokenManager.Set(token, authorization, cache.RememberMeExpiration)
+			} else {
+				cache.TokenManager.Set(token, authorization, cache.NotRememberExpiration)
+			}
+		} else if strings.EqualFold(constant.ShareSession, authorization.Type) {
+			id := c.Param("id")
+			uri = strings.Split(uri, "?")[0]
+			allowUrls := []string{
+				"/share-sessions/" + id,
+				"/sessions",
+				"/sessions/" + id + "/tunnel",
+				"/sessions/" + id + "/connect",
+				"/sessions/" + id + "/resize",
+				"/sessions/" + id + "/stats",
+				"/sessions/" + id + "/ls",
+				"/sessions/" + id + "/download",
+				"/sessions/" + id + "/upload",
+				"/sessions/" + id + "/edit",
+				"/sessions/" + id + "/mkdir",
+				"/sessions/" + id + "/rm",
+				"/sessions/" + id + "/rename",
+			}
+			if !utils.Contains(allowUrls, uri) {
+				return api.Fail(c, 401, "您的登录信息已失效，请重新登录后再试。")
+			}
+		}
+
+		return next(c)
+	}
+}
+
+func Admin(next echo.HandlerFunc) echo.HandlerFunc {
+	return func(c echo.Context) error {
+
+		account, found := api.GetCurrentAccount(c)
+		if !found {
+			return api.Fail(c, 401, "您的登录信息已失效，请重新登录后再试。")
+		}
+
+		if account.Type != constant.TypeAdmin {
+			return api.Fail(c, 403, "permission denied")
+		}
+
+		return next(c)
+	}
+}