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recovery.go
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recovery.go
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package recovery
import (
"fmt"
"log"
"net/http"
"go.uber.org/zap"
"github.com/yoas0bi/micro-toolkit/exception"
"github.com/yoas0bi/micro-toolkit/http/response"
"github.com/yoas0bi/micro-toolkit/http/router"
"github.com/yoas0bi/micro-toolkit/logger"
)
const recoveryExplanation = "Something went wrong"
// New returns a new recovery instance
func New() router.Middleware {
return &recovery{}
}
// NewWithLogger returns a new recovery instance
func NewWithLogger(l logger.WithMetaLogger) router.Middleware {
return &recovery{
log: l,
}
}
type recovery struct {
log logger.WithMetaLogger
debug bool
}
func (m *recovery) Debug(on bool) {
m.debug = on
}
// Wrap 实现中间
func (m *recovery) Handler(next http.Handler) http.Handler {
return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
defer func() {
if r := recover(); r != nil {
msg := fmt.Sprintf("%s. Recovering, but please report this.", recoveryExplanation)
stack := m.stack()
// 记录Panic日志
m.logf(msg, r, stack)
if m.debug {
msg += stack
}
// 返回500报错
response.Failed(rw, exception.NewInternalServerError(msg))
return
}
}()
next.ServeHTTP(rw, r)
})
}
func (m *recovery) stack() string {
return zap.Stack("stack").String
}
func (m *recovery) logf(msg string, r interface{}, stack string) {
if m.log != nil {
m.log.Errorw(msg, logger.NewAny("panic", r), logger.NewAny("stack", stack))
return
}
log.Println(msg, r, stack)
return
}