diff --git a/main.go b/main.go
index 26b8539..c2b2d3b 100644
--- a/main.go
+++ b/main.go
@@ -10,6 +10,7 @@ import (
 	"github.com/taoshihan1991/imaptool/docs"
 	"github.com/taoshihan1991/imaptool/middleware"
 	"github.com/taoshihan1991/imaptool/tmpl"
+	"github.com/taoshihan1991/imaptool/tools"
 	"log"
 	"os"
 	"os/exec"
@@ -118,5 +119,8 @@ func main() {
 	docs.SwaggerInfo.BasePath = "/"
 	//docs.SwaggerInfo.Schemes = []string{"http"}
 	engine.GET("/docs/*any", ginSwagger.WrapHandler(swaggerFiles.Handler))
+
+	logFile, _ := os.OpenFile("./fatal.log", os.O_CREATE|os.O_APPEND|os.O_RDWR, 0660)
+	tools.RedirectStderr(logFile)
 	engine.Run(baseServer)
 }
diff --git a/middleware/rbac.go b/middleware/rbac.go
new file mode 100644
index 0000000..2a9c877
--- /dev/null
+++ b/middleware/rbac.go
@@ -0,0 +1,38 @@
+package middleware
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/taoshihan1991/imaptool/models"
+	"strings"
+)
+
+func RbacAuth(c *gin.Context){
+	roleId, _ :=c.Get("role_id")
+	role:=models.FindRole(roleId)
+	if role.Method!="*"{
+		methods:=strings.Split(role.Method,",")
+		for _,m:=range methods{
+			if c.Request.Method!=m{
+				c.JSON(200, gin.H{
+					"code": 403,
+					"msg":  "没有权限:"+c.Request.Method+","+c.Request.RequestURI,
+				})
+				c.Abort()
+				return
+			}
+		}
+	}
+	if role.Path!="*"{
+		paths:=strings.Split(role.Path,",")
+		for _,p:=range paths{
+			if c.Request.RequestURI!=p{
+				c.JSON(200, gin.H{
+					"code": 403,
+					"msg":  "没有权限:"+c.Request.Method+","+c.Request.RequestURI,
+				})
+				c.Abort()
+			}
+		}
+	}
+}
+
diff --git a/tools/paniclog_unix.go b/tools/paniclog_unix.go
new file mode 100644
index 0000000..ba58bde
--- /dev/null
+++ b/tools/paniclog_unix.go
@@ -0,0 +1,19 @@
+// Log the panic under unix to the log file
+
+//+build unix
+
+package tools
+
+import (
+	"log"
+	"os"
+	"syscall"
+)
+
+// redirectStderr to the file passed in
+func RedirectStderr(f *os.File) {
+	err := syscall.Dup2(int(f.Fd()), int(os.Stderr.Fd()))
+	if err != nil {
+		log.Printf("Failed to redirect stderr to file: %v", err)
+	}
+}
\ No newline at end of file
diff --git a/tools/paniclog_windows.go b/tools/paniclog_windows.go
new file mode 100644
index 0000000..59602f4
--- /dev/null
+++ b/tools/paniclog_windows.go
@@ -0,0 +1,41 @@
+// Log the panic under windows to the log file
+//
+// Code from minix, via
+//
+// http://play.golang.org/p/kLtct7lSUg
+
+//+build windows
+
+package tools
+
+import (
+	"log"
+	"os"
+	"syscall"
+)
+
+var (
+	kernel32         = syscall.MustLoadDLL("kernel32.dll")
+	procSetStdHandle = kernel32.MustFindProc("SetStdHandle")
+)
+
+func setStdHandle(stdhandle int32, handle syscall.Handle) error {
+	r0, _, e1 := syscall.Syscall(procSetStdHandle.Addr(), 2, uintptr(stdhandle), uintptr(handle), 0)
+	if r0 == 0 {
+		if e1 != 0 {
+			return error(e1)
+		}
+		return syscall.EINVAL
+	}
+	return nil
+}
+
+// redirectStderr to the file passed in
+func RedirectStderr(f *os.File) {
+	err := setStdHandle(syscall.STD_ERROR_HANDLE, syscall.Handle(f.Fd()))
+	if err != nil {
+		log.Printf("Failed to redirect stderr to file: %v", err)
+	}
+	// SetStdHandle does not affect prior references to stderr
+	os.Stderr = f
+}
\ No newline at end of file