github.com/linapex/ethereum-go-chinese@v0.0.0-20190316121929-f8b7a73c3fa1/signer/core/auditlog.go (about)

     1  
     2  //<developer>
     3  //    <name>linapex 曹一峰</name>
     4  //    <email>linapex@163.com</email>
     5  //    <wx>superexc</wx>
     6  //    <qqgroup>128148617</qqgroup>
     7  //    <url>https://jsq.ink</url>
     8  //    <role>pku engineer</role>
     9  //    <date>2019-03-16 19:16:42</date>
    10  //</624450110390013952>
    11  
    12  
    13  package core
    14  
    15  import (
    16  	"context"
    17  
    18  	"encoding/json"
    19  
    20  	"github.com/ethereum/go-ethereum/accounts"
    21  	"github.com/ethereum/go-ethereum/common"
    22  	"github.com/ethereum/go-ethereum/common/hexutil"
    23  	"github.com/ethereum/go-ethereum/internal/ethapi"
    24  	"github.com/ethereum/go-ethereum/log"
    25  )
    26  
    27  type AuditLogger struct {
    28  	log log.Logger
    29  	api ExternalAPI
    30  }
    31  
    32  func (l *AuditLogger) List(ctx context.Context) ([]common.Address, error) {
    33  	l.log.Info("List", "type", "request", "metadata", MetadataFromContext(ctx).String())
    34  	res, e := l.api.List(ctx)
    35  	l.log.Info("List", "type", "response", "data", res)
    36  
    37  	return res, e
    38  }
    39  
    40  func (l *AuditLogger) New(ctx context.Context) (accounts.Account, error) {
    41  	return l.api.New(ctx)
    42  }
    43  
    44  func (l *AuditLogger) SignTransaction(ctx context.Context, args SendTxArgs, methodSelector *string) (*ethapi.SignTransactionResult, error) {
    45  	sel := "<nil>"
    46  	if methodSelector != nil {
    47  		sel = *methodSelector
    48  	}
    49  	l.log.Info("SignTransaction", "type", "request", "metadata", MetadataFromContext(ctx).String(),
    50  		"tx", args.String(),
    51  		"methodSelector", sel)
    52  
    53  	res, e := l.api.SignTransaction(ctx, args, methodSelector)
    54  	if res != nil {
    55  		l.log.Info("SignTransaction", "type", "response", "data", common.Bytes2Hex(res.Raw), "error", e)
    56  	} else {
    57  		l.log.Info("SignTransaction", "type", "response", "data", res, "error", e)
    58  	}
    59  	return res, e
    60  }
    61  
    62  func (l *AuditLogger) Sign(ctx context.Context, addr common.MixedcaseAddress, data hexutil.Bytes) (hexutil.Bytes, error) {
    63  	l.log.Info("Sign", "type", "request", "metadata", MetadataFromContext(ctx).String(),
    64  		"addr", addr.String(), "data", common.Bytes2Hex(data))
    65  	b, e := l.api.Sign(ctx, addr, data)
    66  	l.log.Info("Sign", "type", "response", "data", common.Bytes2Hex(b), "error", e)
    67  	return b, e
    68  }
    69  
    70  func (l *AuditLogger) Export(ctx context.Context, addr common.Address) (json.RawMessage, error) {
    71  	l.log.Info("Export", "type", "request", "metadata", MetadataFromContext(ctx).String(),
    72  		"addr", addr.Hex())
    73  	j, e := l.api.Export(ctx, addr)
    74  //在这种情况下，我们实际上不记录JSON响应，这可能是非常敏感的。
    75  	l.log.Info("Export", "type", "response", "json response size", len(j), "error", e)
    76  	return j, e
    77  }
    78  
    79  //func（l*auditlogger）导入（ctx context.context，keyjson json.rawmessage）（account，error）
    80  ////不要记录JSON内容
    81  //l.log.info（“导入”，“类型”，“请求”，“元数据”，metadataFromContext（ctx.string（），
    82  //“keyjson大小”，len（keyjson））
    83  //a，e：=l.api.import（ctx，keyjson）
    84  //l.log.info（“导入”，“类型”，“响应”，“地址”，a.string（），“错误”，e）
    85  //返回A，E
    86  //}
    87  
    88  func NewAuditLogger(path string, api ExternalAPI) (*AuditLogger, error) {
    89  	l := log.New("api", "signer")
    90  	handler, err := log.FileHandler(path, log.LogfmtFormat())
    91  	if err != nil {
    92  		return nil, err
    93  	}
    94  	l.SetHandler(handler)
    95  	l.Info("Configured", "audit log", path)
    96  	return &AuditLogger{l, api}, nil
    97  }
    98