github.com/linapex/ethereum-dpos-chinese@v0.0.0-20190316121959-b78b3a4a1ece/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 12:09:46</date>
    10  //</624342666460532736>
    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) (Accounts, error) {
    33  	l.log.Info("List", "type", "request", "metadata", MetadataFromContext(ctx).String())
    34  	res, e := l.api.List(ctx)
    35  
    36  	l.log.Info("List", "type", "response", "data", res.String())
    37  
    38  	return res, e
    39  }
    40  
    41  func (l *AuditLogger) New(ctx context.Context) (accounts.Account, error) {
    42  	return l.api.New(ctx)
    43  }
    44  
    45  func (l *AuditLogger) SignTransaction(ctx context.Context, args SendTxArgs, methodSelector *string) (*ethapi.SignTransactionResult, error) {
    46  	sel := "<nil>"
    47  	if methodSelector != nil {
    48  		sel = *methodSelector
    49  	}
    50  	l.log.Info("SignTransaction", "type", "request", "metadata", MetadataFromContext(ctx).String(),
    51  		"tx", args.String(),
    52  		"methodSelector", sel)
    53  
    54  	res, e := l.api.SignTransaction(ctx, args, methodSelector)
    55  	if res != nil {
    56  		l.log.Info("SignTransaction", "type", "response", "data", common.Bytes2Hex(res.Raw), "error", e)
    57  	} else {
    58  		l.log.Info("SignTransaction", "type", "response", "data", res, "error", e)
    59  	}
    60  	return res, e
    61  }
    62  
    63  func (l *AuditLogger) Sign(ctx context.Context, addr common.MixedcaseAddress, data hexutil.Bytes) (hexutil.Bytes, error) {
    64  	l.log.Info("Sign", "type", "request", "metadata", MetadataFromContext(ctx).String(),
    65  		"addr", addr.String(), "data", common.Bytes2Hex(data))
    66  	b, e := l.api.Sign(ctx, addr, data)
    67  	l.log.Info("Sign", "type", "response", "data", common.Bytes2Hex(b), "error", e)
    68  	return b, e
    69  }
    70  
    71  func (l *AuditLogger) EcRecover(ctx context.Context, data, sig hexutil.Bytes) (common.Address, error) {
    72  	l.log.Info("EcRecover", "type", "request", "metadata", MetadataFromContext(ctx).String(),
    73  		"data", common.Bytes2Hex(data))
    74  	a, e := l.api.EcRecover(ctx, data, sig)
    75  	l.log.Info("EcRecover", "type", "response", "addr", a.String(), "error", e)
    76  	return a, e
    77  }
    78  
    79  func (l *AuditLogger) Export(ctx context.Context, addr common.Address) (json.RawMessage, error) {
    80  	l.log.Info("Export", "type", "request", "metadata", MetadataFromContext(ctx).String(),
    81  		"addr", addr.Hex())
    82  	j, e := l.api.Export(ctx, addr)
    83  //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。
    84  	l.log.Info("Export", "type", "response", "json response size", len(j), "error", e)
    85  	return j, e
    86  }
    87  
    88  func (l *AuditLogger) Import(ctx context.Context, keyJSON json.RawMessage) (Account, error) {
    89  //不要记录JSON内容
    90  	l.log.Info("Import", "type", "request", "metadata", MetadataFromContext(ctx).String(),
    91  		"keyJSON size", len(keyJSON))
    92  	a, e := l.api.Import(ctx, keyJSON)
    93  	l.log.Info("Import", "type", "response", "addr", a.String(), "error", e)
    94  	return a, e
    95  }
    96  
    97  func NewAuditLogger(path string, api ExternalAPI) (*AuditLogger, error) {
    98  	l := log.New("api", "signer")
    99  	handler, err := log.FileHandler(path, log.LogfmtFormat())
   100  	if err != nil {
   101  		return nil, err
   102  	}
   103  	l.SetHandler(handler)
   104  	l.Info("Configured", "audit log", path)
   105  	return &AuditLogger{l, api}, nil
   106  }
   107