github.com/lzy4123/fabric@v2.1.1+incompatible/internal/peer/chaincode/signpackage.go (about)

     1  /*
     2  Copyright IBM Corp. 2016 All Rights Reserved.
     3  
     4  SPDX-License-Identifier: Apache-2.0
     5  */
     6  
     7  package chaincode
     8  
     9  import (
    10  	"fmt"
    11  	"io/ioutil"
    12  
    13  	"github.com/hyperledger/fabric/bccsp"
    14  	"github.com/hyperledger/fabric/core/common/ccpackage"
    15  	"github.com/hyperledger/fabric/protoutil"
    16  	"github.com/spf13/cobra"
    17  )
    18  
    19  // signpackageCmd returns the cobra command for signing a package
    20  func signpackageCmd(cf *ChaincodeCmdFactory, cryptoProvider bccsp.BCCSP) *cobra.Command {
    21  	spCmd := &cobra.Command{
    22  		Use:       "signpackage",
    23  		Short:     "Sign the specified chaincode package",
    24  		Long:      "Sign the specified chaincode package",
    25  		ValidArgs: []string{"2"},
    26  		RunE: func(cmd *cobra.Command, args []string) error {
    27  			if len(args) < 2 {
    28  				return fmt.Errorf("peer chaincode signpackage <inputpackage> <outputpackage>")
    29  			}
    30  			return signpackage(cmd, args[0], args[1], cf, cryptoProvider)
    31  		},
    32  	}
    33  
    34  	return spCmd
    35  }
    36  
    37  func signpackage(cmd *cobra.Command, ipackageFile string, opackageFile string, cf *ChaincodeCmdFactory, cryptoProvider bccsp.BCCSP) error {
    38  	// Parsing of the command line is done so silence cmd usage
    39  	cmd.SilenceUsage = true
    40  
    41  	var err error
    42  	if cf == nil {
    43  		cf, err = InitCmdFactory(cmd.Name(), false, false, cryptoProvider)
    44  		if err != nil {
    45  			return err
    46  		}
    47  	}
    48  
    49  	b, err := ioutil.ReadFile(ipackageFile)
    50  	if err != nil {
    51  		return err
    52  	}
    53  
    54  	env := protoutil.UnmarshalEnvelopeOrPanic(b)
    55  
    56  	env, err = ccpackage.SignExistingPackage(env, cf.Signer)
    57  	if err != nil {
    58  		return err
    59  	}
    60  
    61  	b = protoutil.MarshalOrPanic(env)
    62  	err = ioutil.WriteFile(opackageFile, b, 0700)
    63  	if err != nil {
    64  		return err
    65  	}
    66  
    67  	fmt.Printf("Wrote signed package to %s successfully\n", opackageFile)
    68  
    69  	return nil
    70  }