github.com/leonlxy/hyperledger@v1.0.0-alpha.0.20170427033203-34922035d248/peer/chaincode/signpackage.go (about)

     1  /*
     2  Copyright IBM Corp. 2016 All Rights Reserved.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8  		 http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package chaincode
    18  
    19  import (
    20  	"fmt"
    21  	"io/ioutil"
    22  
    23  	"github.com/spf13/cobra"
    24  
    25  	"github.com/hyperledger/fabric/core/common/ccpackage"
    26  	"github.com/hyperledger/fabric/protos/utils"
    27  )
    28  
    29  // signpackageCmd returns the cobra command for signing a package
    30  func signpackageCmd(cf *ChaincodeCmdFactory) *cobra.Command {
    31  	spCmd := &cobra.Command{
    32  		Use:       "signpackage",
    33  		Short:     "Sign the specified chaincode package",
    34  		Long:      "Sign the specified chaincode package",
    35  		ValidArgs: []string{"2"},
    36  		RunE: func(cmd *cobra.Command, args []string) error {
    37  			if len(args) < 2 {
    38  				return fmt.Errorf("peer chaincode signpackage <inputpackage> <outputpackage>")
    39  			}
    40  			return signpackage(cmd, args[0], args[1], cf)
    41  		},
    42  	}
    43  
    44  	return spCmd
    45  }
    46  
    47  func signpackage(cmd *cobra.Command, ipackageFile string, opackageFile string, cf *ChaincodeCmdFactory) error {
    48  	var err error
    49  	if cf == nil {
    50  		cf, err = InitCmdFactory(false, false)
    51  		if err != nil {
    52  			return err
    53  		}
    54  	}
    55  
    56  	b, err := ioutil.ReadFile(ipackageFile)
    57  	if err != nil {
    58  		return err
    59  	}
    60  
    61  	env := utils.UnmarshalEnvelopeOrPanic(b)
    62  
    63  	env, err = ccpackage.SignExistingPackage(env, cf.Signer)
    64  	if err != nil {
    65  		return err
    66  	}
    67  
    68  	b = utils.MarshalOrPanic(env)
    69  	err = ioutil.WriteFile(opackageFile, b, 0700)
    70  	if err != nil {
    71  		return err
    72  	}
    73  
    74  	fmt.Printf("Wrote signed package to %s successfully\n", opackageFile)
    75  
    76  	return nil
    77  }