github.com/arieschain/arieschain@v0.0.0-20191023063405-37c074544356/signer/core/auditlog.go (about)

     1  
     2  package core
     3  
     4  import (
     5  	"context"
     6  
     7  	"encoding/json"
     8  
     9  	"github.com/quickchainproject/quickchain/accounts"
    10  	"github.com/quickchainproject/quickchain/common"
    11  	"github.com/quickchainproject/quickchain/common/hexutil"
    12  	"github.com/quickchainproject/quickchain/internal/qctapi"
    13  	"github.com/quickchainproject/quickchain/log"
    14  )
    15  
    16  type AuditLogger struct {
    17  	log log.Logger
    18  	api ExternalAPI
    19  }
    20  
    21  func (l *AuditLogger) List(ctx context.Context) (Accounts, error) {
    22  	l.log.Info("List", "type", "request", "metadata", MetadataFromContext(ctx).String())
    23  	res, e := l.api.List(ctx)
    24  
    25  	l.log.Info("List", "type", "response", "data", res.String())
    26  
    27  	return res, e
    28  }
    29  
    30  func (l *AuditLogger) New(ctx context.Context) (accounts.Account, error) {
    31  	return l.api.New(ctx)
    32  }
    33  
    34  func (l *AuditLogger) SignTransaction(ctx context.Context, args SendTxArgs, methodSelector *string) (*qctapi.SignTransactionResult, error) {
    35  	sel := "<nil>"
    36  	if methodSelector != nil {
    37  		sel = *methodSelector
    38  	}
    39  	l.log.Info("SignTransaction", "type", "request", "metadata", MetadataFromContext(ctx).String(),
    40  		"tx", args.String(),
    41  		"methodSelector", sel)
    42  
    43  	res, e := l.api.SignTransaction(ctx, args, methodSelector)
    44  	if res != nil {
    45  		l.log.Info("SignTransaction", "type", "response", "data", common.Bytes2Hex(res.Raw), "error", e)
    46  	} else {
    47  		l.log.Info("SignTransaction", "type", "response", "data", res, "error", e)
    48  	}
    49  	return res, e
    50  }
    51  
    52  func (l *AuditLogger) Sign(ctx context.Context, addr common.MixedcaseAddress, data hexutil.Bytes) (hexutil.Bytes, error) {
    53  	l.log.Info("Sign", "type", "request", "metadata", MetadataFromContext(ctx).String(),
    54  		"addr", addr.String(), "data", common.Bytes2Hex(data))
    55  	b, e := l.api.Sign(ctx, addr, data)
    56  	l.log.Info("Sign", "type", "response", "data", common.Bytes2Hex(b), "error", e)
    57  	return b, e
    58  }
    59  
    60  func (l *AuditLogger) EcRecover(ctx context.Context, data, sig hexutil.Bytes) (common.Address, error) {
    61  	l.log.Info("EcRecover", "type", "request", "metadata", MetadataFromContext(ctx).String(),
    62  		"data", common.Bytes2Hex(data))
    63  	a, e := l.api.EcRecover(ctx, data, sig)
    64  	l.log.Info("EcRecover", "type", "response", "addr", a.String(), "error", e)
    65  	return a, e
    66  }
    67  
    68  func (l *AuditLogger) Export(ctx context.Context, addr common.Address) (json.RawMessage, error) {
    69  	l.log.Info("Export", "type", "request", "metadata", MetadataFromContext(ctx).String(),
    70  		"addr", addr.Hex())
    71  	j, e := l.api.Export(ctx, addr)
    72  	// In this case, we don't actually log the json-response, which may be extra sensitive
    73  	l.log.Info("Export", "type", "response", "json response size", len(j), "error", e)
    74  	return j, e
    75  }
    76  
    77  func (l *AuditLogger) Import(ctx context.Context, keyJSON json.RawMessage) (Account, error) {
    78  	// Don't actually log the json contents
    79  	l.log.Info("Import", "type", "request", "metadata", MetadataFromContext(ctx).String(),
    80  		"keyJSON size", len(keyJSON))
    81  	a, e := l.api.Import(ctx, keyJSON)
    82  	l.log.Info("Import", "type", "response", "addr", a.String(), "error", e)
    83  	return a, e
    84  }
    85  
    86  func NewAuditLogger(path string, api ExternalAPI) (*AuditLogger, error) {
    87  	l := log.New("api", "signer")
    88  	handler, err := log.FileHandler(path, log.LogfmtFormat())
    89  	if err != nil {
    90  		return nil, err
    91  	}
    92  	l.SetHandler(handler)
    93  	l.Info("Configured", "audit log", path)
    94  	return &AuditLogger{l, api}, nil
    95  }