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log.go
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log.go
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// Copyright 2018-2021 CERN
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// In applying this license, CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
package log
import (
"context"
"time"
"github.com/cs3org/reva/v2/pkg/appctx"
ctxpkg "github.com/cs3org/reva/v2/pkg/ctx"
"github.com/rs/zerolog"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/peer"
"google.golang.org/grpc/status"
)
// NewUnary returns a new unary interceptor
// that logs grpc calls.
func NewUnary() grpc.UnaryServerInterceptor {
interceptor := func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
start := time.Now()
res, err := handler(ctx, req)
code := status.Code(err)
end := time.Now()
diff := end.Sub(start).Nanoseconds()
var fromAddress string
if p, ok := peer.FromContext(ctx); ok {
fromAddress = p.Addr.Network() + "://" + p.Addr.String()
}
userAgent, ok := ctxpkg.ContextGetUserAgentString(ctx)
if !ok {
userAgent = ""
}
log := appctx.GetLogger(ctx)
var event *zerolog.Event
var msg string
if code != codes.OK {
event = log.Error()
msg = err.Error()
} else {
event = log.Debug()
msg = "unary"
}
event.Str("user-agent", userAgent).
Str("from", fromAddress).
Str("uri", info.FullMethod).
Str("start", start.Format("02/Jan/2006:15:04:05 -0700")).
Str("end", end.Format("02/Jan/2006:15:04:05 -0700")).Int("time_ns", int(diff)).
Str("code", code.String()).
Msg(msg)
return res, err
}
return interceptor
}
// NewStream returns a new server stream interceptor
// that adds trace information to the request.
func NewStream() grpc.StreamServerInterceptor {
interceptor := func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
ctx := ss.Context()
start := time.Now()
err := handler(srv, ss)
end := time.Now()
code := status.Code(err)
diff := end.Sub(start).Nanoseconds()
var fromAddress string
if p, ok := peer.FromContext(ss.Context()); ok {
fromAddress = p.Addr.Network() + "://" + p.Addr.String()
}
userAgent, ok := ctxpkg.ContextGetUserAgentString(ctx)
if !ok {
userAgent = ""
}
log := appctx.GetLogger(ss.Context())
var event *zerolog.Event
var msg string
if code != codes.OK {
event = log.Error()
msg = err.Error()
} else {
event = log.Debug()
msg = "stream"
}
event.Str("user-agent", userAgent).
Str("from", fromAddress).
Str("uri", info.FullMethod).
Str("start", start.Format("02/Jan/2006:15:04:05 -0700")).
Str("end", end.Format("02/Jan/2006:15:04:05 -0700")).Int("time_ns", int(diff)).
Str("code", code.String()).
Msg(msg)
return err
}
return interceptor
}