mirror of
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6d9e043284
This reintroduces support for Go modules, as v4. CloseNotifier() is removed as it has been obsoleted, see https://golang.org/doc/go1.11#net/http It was already NOT working (not sending signals) as of 1.11 the functionality was gone, we merely deleted the functions that exposed it. If anyone still relies on it they should migrate to using `c.Request().Context().Done()` instead. Closes #1268, #1255
82 lines
2.0 KiB
Go
82 lines
2.0 KiB
Go
package middleware
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import (
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"fmt"
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"runtime"
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"github.com/labstack/echo/v4"
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)
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type (
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// RecoverConfig defines the config for Recover middleware.
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RecoverConfig struct {
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// Skipper defines a function to skip middleware.
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Skipper Skipper
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// Size of the stack to be printed.
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// Optional. Default value 4KB.
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StackSize int `yaml:"stack_size"`
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// DisableStackAll disables formatting stack traces of all other goroutines
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// into buffer after the trace for the current goroutine.
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// Optional. Default value false.
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DisableStackAll bool `yaml:"disable_stack_all"`
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// DisablePrintStack disables printing stack trace.
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// Optional. Default value as false.
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DisablePrintStack bool `yaml:"disable_print_stack"`
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}
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)
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var (
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// DefaultRecoverConfig is the default Recover middleware config.
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DefaultRecoverConfig = RecoverConfig{
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Skipper: DefaultSkipper,
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StackSize: 4 << 10, // 4 KB
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DisableStackAll: false,
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DisablePrintStack: false,
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}
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)
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// Recover returns a middleware which recovers from panics anywhere in the chain
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// and handles the control to the centralized HTTPErrorHandler.
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func Recover() echo.MiddlewareFunc {
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return RecoverWithConfig(DefaultRecoverConfig)
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}
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// RecoverWithConfig returns a Recover middleware with config.
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// See: `Recover()`.
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func RecoverWithConfig(config RecoverConfig) echo.MiddlewareFunc {
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// Defaults
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if config.Skipper == nil {
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config.Skipper = DefaultRecoverConfig.Skipper
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}
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if config.StackSize == 0 {
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config.StackSize = DefaultRecoverConfig.StackSize
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}
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return func(next echo.HandlerFunc) echo.HandlerFunc {
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return func(c echo.Context) error {
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if config.Skipper(c) {
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return next(c)
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}
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defer func() {
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if r := recover(); r != nil {
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err, ok := r.(error)
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if !ok {
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err = fmt.Errorf("%v", r)
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}
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stack := make([]byte, config.StackSize)
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length := runtime.Stack(stack, !config.DisableStackAll)
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if !config.DisablePrintStack {
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c.Logger().Printf("[PANIC RECOVER] %v %s\n", err, stack[:length])
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}
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c.Error(err)
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}
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}()
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return next(c)
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}
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}
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}
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