proxy access log

Signed-off-by: Jörn Friedrich Dreyer <jfd@butonic.de>

proxy/pkg/middleware/accesslog.go

@@ -0,0 +1,33 @@
+package middleware
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/go-chi/chi/middleware"
+	"github.com/owncloud/ocis/ocis-pkg/log"
+	"github.com/owncloud/ocis/proxy/pkg/proxy/policy"
+)
+
+// AccessLog is a middleware to log http requests at info level logging.
+func AccessLog(logger log.Logger) func(http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			start := time.Now()
+			wrap := middleware.NewWrapResponseWriter(w, r.ProtoMajor)
+			next.ServeHTTP(wrap, r)
+
+			logger.Info().
+				Str("proto", r.Proto).
+				Str("request", r.Header.Get("X-Request-ID")).
+				Str("remote-addr", r.RemoteAddr).
+				Str("method", r.Method).
+				Str("routing-policy", policy.ContextGetPolicy(r.Context())).
+				Int("status", wrap.Status()).
+				Str("path", r.URL.Path).
+				Dur("duration", time.Since(start)).
+				Int("bytes", wrap.BytesWritten()).
+				Msg("access-log")
+		})
+	}
+}