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| 1 | +// Copyright 2020 The casbin Authors. All Rights Reserved. |
| 2 | +// |
| 3 | +// Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | +// you may not use this file except in compliance with the License. |
| 5 | +// You may obtain a copy of the License at |
| 6 | +// |
| 7 | +// http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +// |
| 9 | +// Unless required by applicable law or agreed to in writing, software |
| 10 | +// distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | +// See the License for the specific language governing permissions and |
| 13 | +// limitations under the License. |
| 14 | + |
| 15 | +package zaplogger |
| 16 | + |
| 17 | +import ( |
| 18 | + "go.uber.org/zap" |
| 19 | + "go.uber.org/zap/zapcore" |
| 20 | +) |
| 21 | + |
| 22 | +// Logger is the implementation for a Logger using zap. |
| 23 | +type Logger struct { |
| 24 | + enabled bool |
| 25 | + logger *zap.Logger |
| 26 | +} |
| 27 | + |
| 28 | +// Mapping of event field. |
| 29 | +var logEventMap = map[int]string{ |
| 30 | + 0: "LogTypeGrantedAccessRequest", |
| 31 | + 1: "LogTypeRejectedAccessRequest", |
| 32 | + 2: "LogTypeLoadPolicy", |
| 33 | + 3: "LogTypePrintModel", |
| 34 | + 4: "LogTypePrintPolicy", |
| 35 | + 5: "LogTypePrintRole", |
| 36 | + 6: "LogTypeLinkRole", |
| 37 | +} |
| 38 | + |
| 39 | +// NewLogger is the default constructor for Logger. |
| 40 | +// Params : enabled, jsonEncode |
| 41 | +// enabled initialize recording state, jsonEncode initialize log whether structured as json. |
| 42 | +func NewLogger(enabled, jsonEncode bool) *Logger { |
| 43 | + var encoderConfig = zapcore.EncoderConfig{ |
| 44 | + TimeKey: "time", |
| 45 | + LevelKey: "level", |
| 46 | + MessageKey: "event", |
| 47 | + EncodeLevel: zapcore.LowercaseLevelEncoder, |
| 48 | + EncodeTime: zapcore.ISO8601TimeEncoder, |
| 49 | + EncodeDuration: zapcore.SecondsDurationEncoder, |
| 50 | + } |
| 51 | + atomicLevel := zap.NewAtomicLevel() |
| 52 | + atomicLevel.SetLevel(zap.InfoLevel) // default log level: info |
| 53 | + |
| 54 | + encodeMethod := "json" |
| 55 | + if !jsonEncode { |
| 56 | + encodeMethod = "console" |
| 57 | + } |
| 58 | + |
| 59 | + config := zap.Config{ |
| 60 | + Level: atomicLevel, |
| 61 | + Development: true, |
| 62 | + Encoding: encodeMethod, |
| 63 | + EncoderConfig: encoderConfig, |
| 64 | + OutputPaths: []string{"stdout"}, |
| 65 | + ErrorOutputPaths: []string{"stderr"}, |
| 66 | + } |
| 67 | + |
| 68 | + logger, err := config.Build() |
| 69 | + if err != nil { |
| 70 | + panic(err) |
| 71 | + } |
| 72 | + |
| 73 | + return &Logger{enabled: enabled, logger: logger} |
| 74 | +} |
| 75 | + |
| 76 | +// NewLoggerByZap creates zap-logger by an existing zap instance. |
| 77 | +func NewLoggerByZap(zapLogger *zap.Logger, enabled bool) *Logger { |
| 78 | + return &Logger{ |
| 79 | + enabled: enabled, |
| 80 | + logger: zapLogger, |
| 81 | + } |
| 82 | +} |
| 83 | + |
| 84 | +func (l *Logger) EnableLog(enable bool) { |
| 85 | + l.enabled = enable |
| 86 | +} |
| 87 | + |
| 88 | +func (l *Logger) IsEnabled() bool { |
| 89 | + return l.enabled |
| 90 | +} |
| 91 | + |
| 92 | +func (l *Logger) LogModel(event int, line []string, model [][]string) { |
| 93 | + if !l.enabled { |
| 94 | + return |
| 95 | + } |
| 96 | + |
| 97 | + l.logger.Info(logEventMap[event], zap.Strings("line", line)) |
| 98 | +} |
| 99 | + |
| 100 | +func (l *Logger) LogEnforce(event int, line string, request *[]interface{}, policies *[]string, result *[]interface{}) { |
| 101 | + if !l.enabled { |
| 102 | + return |
| 103 | + } |
| 104 | + |
| 105 | + l.logger.Info(logEventMap[event], zap.String("line", line)) |
| 106 | +} |
| 107 | + |
| 108 | +func (l *Logger) LogPolicy(event int, line string, pPolicyFormat []string, gPolicyFormat []string, pPolicy *[]interface{}, gPolicy *[]interface{}) { |
| 109 | + if !l.enabled { |
| 110 | + return |
| 111 | + } |
| 112 | + |
| 113 | + if pPolicy != nil { |
| 114 | + for k, v := range *pPolicy { |
| 115 | + l.logger.Info(logEventMap[event], zap.String("line", line), zap.Any("pPolicyFormat", pPolicyFormat[k]), zap.Any("pPolicy", v)) |
| 116 | + } |
| 117 | + } |
| 118 | + if gPolicy != nil { |
| 119 | + for k, v := range *gPolicy { |
| 120 | + l.logger.Info(logEventMap[event], zap.String("line", line), zap.Any("gPolicyFormat", gPolicyFormat[k]), zap.Any("gPolicy", v)) |
| 121 | + } |
| 122 | + } |
| 123 | +} |
| 124 | + |
| 125 | +func (l *Logger) LogRole(event int, line string, role []string) { |
| 126 | + if !l.enabled { |
| 127 | + return |
| 128 | + } |
| 129 | + |
| 130 | + l.logger.Info(logEventMap[event], zap.String("line", line)) |
| 131 | +} |
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