MaysWind
99 lines
1.7 KiB
Go
99 lines
1.7 KiB
Go
package middlewares
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import (
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"bytes"
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"fmt"
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"os"
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"runtime"
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"github.com/mayswind/ezbookkeeping/pkg/core"
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"github.com/mayswind/ezbookkeeping/pkg/errs"
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"github.com/mayswind/ezbookkeeping/pkg/log"
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"github.com/mayswind/ezbookkeeping/pkg/utils"
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)
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var (
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dunno = []byte("???")
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centerDot = []byte("·")
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dot = []byte(".")
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slash = []byte("/")
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)
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// Recovery logs error message when error occurs
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func Recovery(c *core.WebContext) {
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defer func() {
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if err := recover(); err != nil {
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stack := stack(3)
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log.ErrorfWithExtra(c, string(stack), "System Error! because %s", err)
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utils.PrintJsonErrorResult(c, errs.ErrSystemError)
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}
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}()
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c.Next()
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}
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// The following code is from recovery.go of gin
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func stack(skip int) []byte {
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buf := new(bytes.Buffer)
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var lines [][]byte
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var lastFile string
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for i := skip; ; i++ {
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pc, file, line, ok := runtime.Caller(i)
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if !ok {
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break
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}
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fmt.Fprintf(buf, "%s:%d (0x%x)\n", file, line, pc)
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if file != lastFile {
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data, err := os.ReadFile(file)
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if err != nil {
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continue
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}
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lines = bytes.Split(data, []byte{'\n'})
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lastFile = file
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}
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fmt.Fprintf(buf, "\t%s: %s\n", function(pc), source(lines, line))
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}
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return buf.Bytes()
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}
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func source(lines [][]byte, n int) []byte {
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n--
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if n < 0 || n >= len(lines) {
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return dunno
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}
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return bytes.TrimSpace(lines[n])
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}
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func function(pc uintptr) []byte {
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fn := runtime.FuncForPC(pc)
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if fn == nil {
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return dunno
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}
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name := []byte(fn.Name())
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if lastslash := bytes.LastIndex(name, slash); lastslash >= 0 {
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name = name[lastslash+1:]
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}
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if period := bytes.Index(name, dot); period >= 0 {
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name = name[period+1:]
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}
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name = bytes.Replace(name, centerDot, dot, -1)
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return name
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}
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