github.com/aswedchain/aswed@v1.0.1/signer/core/stdioui.go (about)

     1  // Copyright 2018 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package core
    18  
    19  import (
    20  	"context"
    21  
    22  	"github.com/aswedchain/aswed/internal/ethapi"
    23  	"github.com/aswedchain/aswed/log"
    24  	"github.com/aswedchain/aswed/rpc"
    25  )
    26  
    27  type StdIOUI struct {
    28  	client rpc.Client
    29  }
    30  
    31  func NewStdIOUI() *StdIOUI {
    32  	client, err := rpc.DialContext(context.Background(), "stdio://")
    33  	if err != nil {
    34  		log.Crit("Could not create stdio client", "err", err)
    35  	}
    36  	ui := &StdIOUI{client: *client}
    37  	return ui
    38  }
    39  
    40  func (ui *StdIOUI) RegisterUIServer(api *UIServerAPI) {
    41  	ui.client.RegisterName("clef", api)
    42  }
    43  
    44  // dispatch sends a request over the stdio
    45  func (ui *StdIOUI) dispatch(serviceMethod string, args interface{}, reply interface{}) error {
    46  	err := ui.client.Call(&reply, serviceMethod, args)
    47  	if err != nil {
    48  		log.Info("Error", "exc", err.Error())
    49  	}
    50  	return err
    51  }
    52  
    53  // notify sends a request over the stdio, and does not listen for a response
    54  func (ui *StdIOUI) notify(serviceMethod string, args interface{}) error {
    55  	ctx := context.Background()
    56  	err := ui.client.Notify(ctx, serviceMethod, args)
    57  	if err != nil {
    58  		log.Info("Error", "exc", err.Error())
    59  	}
    60  	return err
    61  }
    62  
    63  func (ui *StdIOUI) ApproveTx(request *SignTxRequest) (SignTxResponse, error) {
    64  	var result SignTxResponse
    65  	err := ui.dispatch("ui_approveTx", request, &result)
    66  	return result, err
    67  }
    68  
    69  func (ui *StdIOUI) ApproveSignData(request *SignDataRequest) (SignDataResponse, error) {
    70  	var result SignDataResponse
    71  	err := ui.dispatch("ui_approveSignData", request, &result)
    72  	return result, err
    73  }
    74  
    75  func (ui *StdIOUI) ApproveListing(request *ListRequest) (ListResponse, error) {
    76  	var result ListResponse
    77  	err := ui.dispatch("ui_approveListing", request, &result)
    78  	return result, err
    79  }
    80  
    81  func (ui *StdIOUI) ApproveNewAccount(request *NewAccountRequest) (NewAccountResponse, error) {
    82  	var result NewAccountResponse
    83  	err := ui.dispatch("ui_approveNewAccount", request, &result)
    84  	return result, err
    85  }
    86  
    87  func (ui *StdIOUI) ShowError(message string) {
    88  	err := ui.notify("ui_showError", &Message{message})
    89  	if err != nil {
    90  		log.Info("Error calling 'ui_showError'", "exc", err.Error(), "msg", message)
    91  	}
    92  }
    93  
    94  func (ui *StdIOUI) ShowInfo(message string) {
    95  	err := ui.notify("ui_showInfo", Message{message})
    96  	if err != nil {
    97  		log.Info("Error calling 'ui_showInfo'", "exc", err.Error(), "msg", message)
    98  	}
    99  }
   100  func (ui *StdIOUI) OnApprovedTx(tx ethapi.SignTransactionResult) {
   101  	err := ui.notify("ui_onApprovedTx", tx)
   102  	if err != nil {
   103  		log.Info("Error calling 'ui_onApprovedTx'", "exc", err.Error(), "tx", tx)
   104  	}
   105  }
   106  
   107  func (ui *StdIOUI) OnSignerStartup(info StartupInfo) {
   108  	err := ui.notify("ui_onSignerStartup", info)
   109  	if err != nil {
   110  		log.Info("Error calling 'ui_onSignerStartup'", "exc", err.Error(), "info", info)
   111  	}
   112  }
   113  func (ui *StdIOUI) OnInputRequired(info UserInputRequest) (UserInputResponse, error) {
   114  	var result UserInputResponse
   115  	err := ui.dispatch("ui_onInputRequired", info, &result)
   116  	if err != nil {
   117  		log.Info("Error calling 'ui_onInputRequired'", "exc", err.Error(), "info", info)
   118  	}
   119  	return result, err
   120  }