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150 lines (134 loc) · 4.61 KB
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// 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 logger
import (
"context"
"fmt"
"net/http"
"strconv"
"time"
internalAudit "github.com/minio/minio/internal/logger/message/audit"
"github.com/minio/minio/internal/mcontext"
"github.com/minio/pkg/v2/logger/message/audit"
xhttp "github.com/minio/minio/internal/http"
)
const contextAuditKey = contextKeyType("audit-entry")
// SetAuditEntry sets Audit info in the context.
func SetAuditEntry(ctx context.Context, audit *audit.Entry) context.Context {
if ctx == nil {
LogIf(context.Background(), fmt.Errorf("context is nil"))
return nil
}
return context.WithValue(ctx, contextAuditKey, audit)
}
// GetAuditEntry returns Audit entry if set.
func GetAuditEntry(ctx context.Context) *audit.Entry {
if ctx != nil {
r, ok := ctx.Value(contextAuditKey).(*audit.Entry)
if ok {
return r
}
r = &audit.Entry{
Version: internalAudit.Version,
DeploymentID: xhttp.GlobalDeploymentID,
Time: time.Now().UTC(),
}
return r
}
return nil
}
// AuditLog - logs audit logs to all audit targets.
func AuditLog(ctx context.Context, w http.ResponseWriter, r *http.Request, reqClaims map[string]interface{}, filterKeys ...string) {
auditTgts := AuditTargets()
if len(auditTgts) == 0 {
return
}
var entry audit.Entry
if w != nil && r != nil {
reqInfo := GetReqInfo(ctx)
if reqInfo == nil {
return
}
reqInfo.RLock()
defer reqInfo.RUnlock()
entry = internalAudit.ToEntry(w, r, reqClaims, xhttp.GlobalDeploymentID)
// indicates all requests for this API call are inbound
entry.Trigger = "incoming"
for _, filterKey := range filterKeys {
delete(entry.ReqClaims, filterKey)
delete(entry.ReqQuery, filterKey)
delete(entry.ReqHeader, filterKey)
delete(entry.RespHeader, filterKey)
}
var (
statusCode int
timeToResponse time.Duration
timeToFirstByte time.Duration
outputBytes int64 = -1 // -1: unknown output bytes
headerBytes int64
)
tc, ok := r.Context().Value(mcontext.ContextTraceKey).(*mcontext.TraceCtxt)
if ok {
statusCode = tc.ResponseRecorder.StatusCode
outputBytes = int64(tc.ResponseRecorder.Size())
headerBytes = int64(tc.ResponseRecorder.HeaderSize())
timeToResponse = time.Now().UTC().Sub(tc.ResponseRecorder.StartTime)
timeToFirstByte = tc.ResponseRecorder.TimeToFirstByte
}
entry.AccessKey = reqInfo.Cred.AccessKey
entry.ParentUser = reqInfo.Cred.ParentUser
entry.API.Name = reqInfo.API
entry.API.Bucket = reqInfo.BucketName
entry.API.Object = reqInfo.ObjectName
entry.API.Objects = make([]audit.ObjectVersion, 0, len(reqInfo.Objects))
for _, ov := range reqInfo.Objects {
entry.API.Objects = append(entry.API.Objects, audit.ObjectVersion{
ObjectName: ov.ObjectName,
VersionID: ov.VersionID,
})
}
entry.API.Status = http.StatusText(statusCode)
entry.API.StatusCode = statusCode
entry.API.InputBytes = r.ContentLength
entry.API.OutputBytes = outputBytes
entry.API.HeaderBytes = headerBytes
entry.API.TimeToResponse = strconv.FormatInt(timeToResponse.Nanoseconds(), 10) + "ns"
entry.API.TimeToResponseInNS = strconv.FormatInt(timeToResponse.Nanoseconds(), 10)
// We hold the lock, so we cannot call reqInfo.GetTagsMap().
tags := make(map[string]interface{}, len(reqInfo.tags))
for _, t := range reqInfo.tags {
tags[t.Key] = t.Val
}
entry.Tags = tags
// ignore cases for ttfb when its zero.
if timeToFirstByte != 0 {
entry.API.TimeToFirstByte = strconv.FormatInt(timeToFirstByte.Nanoseconds(), 10) + "ns"
entry.API.TimeToFirstByteInNS = strconv.FormatInt(timeToFirstByte.Nanoseconds(), 10)
}
} else {
auditEntry := GetAuditEntry(ctx)
if auditEntry != nil {
entry = *auditEntry
}
}
// Send audit logs only to http targets.
for _, t := range auditTgts {
if err := t.Send(ctx, entry); err != nil {
LogOnceIf(ctx, fmt.Errorf("Unable to send an audit event to the target `%v`: %v", t, err), "send-audit-event-failure")
}
}
}