OP#792 initial commit after fork

internal/logger/message/audit/entry.go

@@ -0,0 +1,79 @@
+// Copyright (c) 2015-2021 MinIO, Inc.
+//
+// This file is part of MinIO Object Storage stack
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package audit
+
+import (
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/minio/madmin-go/v3/logger/audit"
+
+	"github.com/minio/minio/internal/handlers"
+	xhttp "github.com/minio/minio/internal/http"
+)
+
+// Version - represents the current version of audit log structure.
+const Version = "1"
+
+// NewEntry - constructs an audit entry object with some fields filled
+func NewEntry(deploymentID string) audit.Entry {
+	return audit.Entry{
+		Version:      Version,
+		DeploymentID: deploymentID,
+		Time:         time.Now().UTC(),
+	}
+}
+
+// ToEntry - constructs an audit entry from a http request
+func ToEntry(w http.ResponseWriter, r *http.Request, reqClaims map[string]any, deploymentID string) audit.Entry {
+	entry := NewEntry(deploymentID)
+
+	entry.RemoteHost = handlers.GetSourceIP(r)
+	entry.UserAgent = r.UserAgent()
+	entry.ReqClaims = reqClaims
+	entry.ReqHost = r.Host
+	entry.ReqPath = r.URL.Path
+
+	q := r.URL.Query()
+	reqQuery := make(map[string]string, len(q))
+	for k, v := range q {
+		reqQuery[k] = strings.Join(v, ",")
+	}
+	entry.ReqQuery = reqQuery
+
+	reqHeader := make(map[string]string, len(r.Header))
+	for k, v := range r.Header {
+		reqHeader[k] = strings.Join(v, ",")
+	}
+	entry.ReqHeader = reqHeader
+
+	wh := w.Header()
+	entry.RequestID = wh.Get(xhttp.AmzRequestID)
+	respHeader := make(map[string]string, len(wh))
+	for k, v := range wh {
+		respHeader[k] = strings.Join(v, ",")
+	}
+	entry.RespHeader = respHeader
+
+	if etag := respHeader[xhttp.ETag]; etag != "" {
+		respHeader[xhttp.ETag] = strings.Trim(etag, `"`)
+	}
+
+	return entry
+}