go.temporal.io/server@v1.23.0/common/rpc/interceptor/namespace_logger.go (about)

     1  // The MIT License
     2  //
     3  // Copyright (c) 2020 Temporal Technologies Inc.  All rights reserved.
     4  //
     5  // Copyright (c) 2020 Uber Technologies, Inc.
     6  //
     7  // Permission is hereby granted, free of charge, to any person obtaining a copy
     8  // of this software and associated documentation files (the "Software"), to deal
     9  // in the Software without restriction, including without limitation the rights
    10  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    11  // copies of the Software, and to permit persons to whom the Software is
    12  // furnished to do so, subject to the following conditions:
    13  //
    14  // The above copyright notice and this permission notice shall be included in
    15  // all copies or substantial portions of the Software.
    16  //
    17  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    18  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    19  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    20  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    21  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    22  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    23  // THE SOFTWARE.
    24  
    25  package interceptor
    26  
    27  import (
    28  	"context"
    29  	"crypto/md5"
    30  	"fmt"
    31  
    32  	"google.golang.org/grpc"
    33  
    34  	"go.temporal.io/server/common/authorization"
    35  	"go.temporal.io/server/common/log"
    36  	"go.temporal.io/server/common/log/tag"
    37  	"go.temporal.io/server/common/namespace"
    38  )
    39  
    40  type (
    41  	NamespaceLogInterceptor struct {
    42  		namespaceRegistry namespace.Registry
    43  		logger            log.Logger
    44  	}
    45  )
    46  
    47  var _ grpc.UnaryServerInterceptor = (*NamespaceLogInterceptor)(nil).Intercept
    48  
    49  func NewNamespaceLogInterceptor(namespaceRegistry namespace.Registry, logger log.Logger) *NamespaceLogInterceptor {
    50  
    51  	return &NamespaceLogInterceptor{
    52  		namespaceRegistry: namespaceRegistry,
    53  		logger:            logger,
    54  	}
    55  }
    56  
    57  func (nli *NamespaceLogInterceptor) Intercept(
    58  	ctx context.Context,
    59  	req interface{},
    60  	info *grpc.UnaryServerInfo,
    61  	handler grpc.UnaryHandler,
    62  ) (interface{}, error) {
    63  
    64  	if nli.logger != nil {
    65  		_, methodName := SplitMethodName(info.FullMethod)
    66  		namespace := MustGetNamespaceName(nli.namespaceRegistry, req)
    67  		tlsInfo := authorization.TLSInfoFormContext(ctx)
    68  		var serverName string
    69  		var certThumbprint string
    70  		if tlsInfo != nil {
    71  			serverName = tlsInfo.State.ServerName
    72  			cert := authorization.PeerCert(tlsInfo)
    73  			if cert != nil {
    74  				certThumbprint = fmt.Sprintf("%x", md5.Sum(cert.Raw))
    75  			}
    76  		}
    77  		nli.logger.Debug(
    78  			"Frontend method invoked.",
    79  			tag.WorkflowNamespace(namespace.String()),
    80  			tag.Operation(methodName),
    81  			tag.ServerName(serverName),
    82  			tag.CertThumbprint(certThumbprint))
    83  	}
    84  	return handler(ctx, req)
    85  }