Files
zeromesh/internal/middleware/logger.go

98 lines
1.8 KiB
Go

package middleware
import (
"bytes"
"io"
"strings"
"time"
"github.com/gin-gonic/gin"
"zeromesh/internal/model"
)
type LogWriter interface {
InsertApiLog(*model.ApiLog) error
InsertErrorLog(*model.ErrorLog) error
}
type RequestLogger struct {
writer LogWriter
}
func NewRequestLogger(writer LogWriter) *RequestLogger {
return &RequestLogger{writer: writer}
}
func (l *RequestLogger) Handler() gin.HandlerFunc {
return func(c *gin.Context) {
path := c.Request.URL.Path
if strings.HasPrefix(path, "/api/v1/log") {
c.Next()
return
}
start := time.Now()
body := ""
if c.Request.Body != nil {
b, _ := io.ReadAll(c.Request.Body)
body = string(b)
c.Request.Body = io.NopCloser(bytes.NewBuffer(b))
}
blw := &bodyLogWriter{ResponseWriter: c.Writer, buf: &bytes.Buffer{}}
c.Writer = blw
c.Next()
latencyMs := time.Since(start).Milliseconds()
ip := c.ClientIP()
method := c.Request.Method
query := c.Request.URL.RawQuery
ua := c.Request.UserAgent()
status := c.Writer.Status()
if status >= 400 {
el := &model.ErrorLog{
IP: ip,
Method: method,
Path: path,
StatusCode: status,
Query: query,
UserAgent: ua,
RequestBody: body,
ResponseBody: blw.buf.String(),
LatencyMs: latencyMs,
}
if err := l.writer.InsertErrorLog(el); err != nil {
c.Error(err)
}
}
al := &model.ApiLog{
IP: ip,
Method: method,
Path: path,
StatusCode: status,
Query: query,
UserAgent: ua,
LatencyMs: latencyMs,
}
if err := l.writer.InsertApiLog(al); err != nil {
c.Error(err)
}
}
}
type bodyLogWriter struct {
gin.ResponseWriter
buf *bytes.Buffer
}
func (w *bodyLogWriter) Write(b []byte) (int, error) {
w.buf.Write(b)
return w.ResponseWriter.Write(b)
}