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mirror of https://github.com/labstack/echo.git synced 2025-01-07 23:01:56 +02:00
echo/middleware/recover.go
toimtoimtoim 6ef5f77bf2 WIP: logger examples
WIP: make default logger implemented custom writer for jsonlike logs
WIP: improve examples
WIP: defaultErrorHandler use errors.As to unwrap errors. Update readme
WIP: default logger logs json, restore e.Start method
WIP: clean router.Match a bit
WIP: func types/fields have echo.Context has first element
WIP: remove yaml tags as functions etc can not be serialized anyway
WIP: change BindPathParams,BindQueryParams,BindHeaders from methods to functions and reverse arguments to be like DefaultBinder.Bind is
WIP: improved comments, logger now extracts status from error
WIP: go mod tidy
WIP: rebase with 4.5.0
WIP:
* removed todos.
* removed StartAutoTLS and StartH2CServer methods from `StartConfig`
* KeyAuth middleware errorhandler can swallow the error and resume next middleware
WIP: add RouterConfig.UseEscapedPathForMatching to use escaped path for matching request against routes
WIP: FIXMEs
WIP: upgrade golang-jwt/jwt to `v4`
WIP: refactor http methods to return RouteInfo
WIP: refactor static not creating multiple routes
WIP: refactor route and middleware adding functions not to return error directly
WIP: Use 401 for problematic/missing headers for key auth and JWT middleware (#1552, #1402).
> In summary, a 401 Unauthorized response should be used for missing or bad authentication
WIP: replace `HTTPError.SetInternal` with `HTTPError.WithInternal` so we could not mutate global error variables
WIP: add RouteInfo and RouteMatchType into Context what we could know from in middleware what route was matched and/or type of that match (200/404/405)
WIP: make notFoundHandler and methodNotAllowedHandler private. encourage that all errors be handled in Echo.HTTPErrorHandler
WIP: server cleanup ideas
WIP: routable.ForGroup
WIP: note about logger middleware
WIP: bind should not default values on second try. use crypto rand for better randomness
WIP: router add route as interface and returns info as interface
WIP: improve flaky test (remains still flaky)
WIP: add notes about bind default values
WIP: every route can have their own path params names
WIP: routerCreator and different tests
WIP: different things
WIP: remove route implementation
WIP: support custom method types
WIP: extractor tests
WIP: v5.0.x proposal
over v4.4.0
2021-10-02 18:36:42 +03:00

82 lines
2.2 KiB
Go

package middleware
import (
"fmt"
"runtime"
"github.com/labstack/echo/v4"
)
// RecoverConfig defines the config for Recover middleware.
type RecoverConfig struct {
// Skipper defines a function to skip middleware.
Skipper Skipper
// Size of the stack to be printed.
// Optional. Default value 4KB.
StackSize int
// DisableStackAll disables formatting stack traces of all other goroutines
// into buffer after the trace for the current goroutine.
// Optional. Default value false.
DisableStackAll bool
// DisablePrintStack disables printing stack trace.
// Optional. Default value as false.
DisablePrintStack bool
}
// DefaultRecoverConfig is the default Recover middleware config.
var DefaultRecoverConfig = RecoverConfig{
Skipper: DefaultSkipper,
StackSize: 4 << 10, // 4 KB
DisableStackAll: false,
DisablePrintStack: false,
}
// Recover returns a middleware which recovers from panics anywhere in the chain
// and handles the control to the centralized HTTPErrorHandler.
func Recover() echo.MiddlewareFunc {
return RecoverWithConfig(DefaultRecoverConfig)
}
// RecoverWithConfig returns a Recovery middleware with config or panics on invalid configuration.
func RecoverWithConfig(config RecoverConfig) echo.MiddlewareFunc {
return toMiddlewareOrPanic(config)
}
// ToMiddleware converts RecoverConfig to middleware or returns an error for invalid configuration
func (config RecoverConfig) ToMiddleware() (echo.MiddlewareFunc, error) {
// Defaults
if config.Skipper == nil {
config.Skipper = DefaultRecoverConfig.Skipper
}
if config.StackSize == 0 {
config.StackSize = DefaultRecoverConfig.StackSize
}
return func(next echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) (err error) {
if config.Skipper(c) {
return next(c)
}
defer func() {
if r := recover(); r != nil {
tmpErr, ok := r.(error)
if !ok {
tmpErr = fmt.Errorf("%v", r)
}
if !config.DisablePrintStack {
stack := make([]byte, config.StackSize)
length := runtime.Stack(stack, !config.DisableStackAll)
tmpErr = fmt.Errorf("[PANIC RECOVER] %w %s", tmpErr, stack[:length])
}
err = tmpErr
}
}()
return next(c)
}
}, nil
}