github.com/erda-project/erda-infra@v1.0.9/providers/httpserver/interceptors/recover.go (about)

     1  // Copyright (c) 2021 Terminus, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package interceptors
    16  
    17  import (
    18  	"fmt"
    19  	"runtime"
    20  
    21  	"github.com/labstack/echo"
    22  
    23  	"github.com/erda-project/erda-infra/base/logs"
    24  )
    25  
    26  // Recover .
    27  func Recover(log logs.Logger) interface{} {
    28  	const StackSize = 4 << 10
    29  	return func(next echo.HandlerFunc) echo.HandlerFunc {
    30  		return func(c echo.Context) error {
    31  			defer func() {
    32  				if r := recover(); r != nil {
    33  					err, ok := r.(error)
    34  					if !ok {
    35  						err = fmt.Errorf("%v", r)
    36  					}
    37  					stack := make([]byte, StackSize)
    38  					length := runtime.Stack(stack, true)
    39  					log.Errorf("[PANIC RECOVER] %v %s\n", err, stack[:length])
    40  					c.Error(err)
    41  				}
    42  			}()
    43  			return next(c)
    44  		}
    45  	}
    46  }