66 lines
1.8 KiB
Go
66 lines
1.8 KiB
Go
package accesslog
|
|
|
|
import (
|
|
"net/http"
|
|
"time"
|
|
|
|
"github.com/traefik/traefik/v2/pkg/log"
|
|
"github.com/traefik/traefik/v2/pkg/middlewares/capture"
|
|
"github.com/vulcand/oxy/utils"
|
|
)
|
|
|
|
// FieldApply function hook to add data in accesslog.
|
|
type FieldApply func(rw http.ResponseWriter, r *http.Request, next http.Handler, data *LogData)
|
|
|
|
// FieldHandler sends a new field to the logger.
|
|
type FieldHandler struct {
|
|
next http.Handler
|
|
name string
|
|
value string
|
|
applyFn FieldApply
|
|
}
|
|
|
|
// NewFieldHandler creates a Field handler.
|
|
func NewFieldHandler(next http.Handler, name, value string, applyFn FieldApply) http.Handler {
|
|
return &FieldHandler{next: next, name: name, value: value, applyFn: applyFn}
|
|
}
|
|
|
|
func (f *FieldHandler) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
|
|
table := GetLogData(req)
|
|
if table == nil {
|
|
f.next.ServeHTTP(rw, req)
|
|
return
|
|
}
|
|
|
|
table.Core[f.name] = f.value
|
|
|
|
if f.applyFn != nil {
|
|
f.applyFn(rw, req, f.next, table)
|
|
} else {
|
|
f.next.ServeHTTP(rw, req)
|
|
}
|
|
}
|
|
|
|
// AddOriginFields add origin fields.
|
|
func AddOriginFields(rw http.ResponseWriter, req *http.Request, next http.Handler, data *LogData) {
|
|
start := time.Now().UTC()
|
|
|
|
next.ServeHTTP(rw, req)
|
|
|
|
// use UTC to handle switchover of daylight saving correctly
|
|
data.Core[OriginDuration] = time.Now().UTC().Sub(start)
|
|
// make copy of headers, so we can ensure there is no subsequent mutation
|
|
// during response processing
|
|
data.OriginResponse = make(http.Header)
|
|
utils.CopyHeaders(data.OriginResponse, rw.Header())
|
|
|
|
ctx := req.Context()
|
|
capt, err := capture.FromContext(ctx)
|
|
if err != nil {
|
|
log.FromContext(log.With(ctx, log.Str(log.MiddlewareType, "AccessLogs"))).Errorf("Could not get Capture: %v", err)
|
|
return
|
|
}
|
|
|
|
data.Core[OriginStatus] = capt.StatusCode()
|
|
data.Core[OriginContentSize] = capt.ResponseSize()
|
|
}
|