140 lines
3.7 KiB
Go
140 lines
3.7 KiB
Go
package middleware
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import (
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"bytes"
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"fmt"
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str "github.com/fthvgb1/wp-go/helper/strings"
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"github.com/fthvgb1/wp-go/internal/mail"
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"github.com/fthvgb1/wp-go/internal/pkg/config"
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"github.com/fthvgb1/wp-go/internal/pkg/logs"
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"github.com/fthvgb1/wp-go/internal/wpconfig"
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"github.com/gin-gonic/gin"
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"io"
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"io/ioutil"
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"net/http"
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"net/http/httputil"
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"runtime"
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"strings"
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"time"
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)
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func RecoverAndSendMail(w io.Writer) func(ctx *gin.Context) {
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return gin.CustomRecoveryWithWriter(w, func(ctx *gin.Context, err any) {
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c := ctx.Copy()
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stack := stack(4)
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if gin.Mode() == gin.ReleaseMode {
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go func() {
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httpRequest, _ := httputil.DumpRequest(c.Request, true)
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headers := strings.Split(string(httpRequest), "\r\n")
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for idx, header := range headers {
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current := strings.Split(header, ":")
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if current[0] == "Authorization" {
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headers[idx] = current[0] + ": *"
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}
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}
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headersToStr := strings.Join(headers, "<br/>")
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content := `<dl><dt>err:</dt><dd>%v</dd><hr/>
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<dt>stack: </dt><dd>%v</dd><hr/>
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<dt>headers: </dt><dd>%s</dd></dl>
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`
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content = fmt.Sprintf(content,
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err,
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formatStack(string(stack)),
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headersToStr,
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)
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er := mail.SendMail(
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[]string{config.GetConfig().Mail.User},
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fmt.Sprintf("%s%s %s 发生错误", fmt.Sprintf(wpconfig.Options.Value("siteurl")), c.FullPath(), time.Now().Format(time.RFC1123Z)), content)
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if er != nil {
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logs.ErrPrintln(er, "recover send mail fail", fmt.Sprintf("%v", err))
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}
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}()
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}
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ctx.AbortWithStatus(http.StatusInternalServerError)
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})
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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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func formatStack(s string) (r string) {
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ss := str.NewBuilder()
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t := strings.Split(s, "\n")
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for i, line := range t {
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if i%2 == 0 {
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ss.WriteString("<dt>", line, "</dt>")
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} else {
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ss.WriteString("<dt>", strings.Trim(line, "\t"), "</dt>")
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}
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}
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r = ss.String()
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return
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}
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func stack(skip int) []byte {
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buf := new(bytes.Buffer) // the returned data
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// As we loop, we open files and read them. These variables record the currently
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// loaded file.
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var lines [][]byte
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var lastFile string
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for i := skip; ; i++ { // Skip the expected number of frames
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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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// Print this much at least. If we can't find the source, it won't show.
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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 := ioutil.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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// function returns, if possible, the name of the function containing the PC.
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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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// The name includes the path name to the package, which is unnecessary
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// since the file name is already included. Plus, it has center dots.
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// That is, we see
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// runtime/debug.*T·ptrmethod
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// and want
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// *T.ptrmethod
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// Also the package path might contain dot (e.g. code.google.com/...),
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// so first eliminate the path prefix
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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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// source returns a space-trimmed slice of the n'th line.
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func source(lines [][]byte, n int) []byte {
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n-- // in stack trace, lines are 1-indexed but our array is 0-indexed
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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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