github.com/kchristidis/fabric@v1.0.4-0.20171028114726-837acd08cde1/peer/channel/update.go (about)

     1  /*
     2  Copyright IBM Corp. 2017 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 channel
    18  
    19  import (
    20  	"fmt"
    21  	"io/ioutil"
    22  
    23  	"errors"
    24  
    25  	"github.com/hyperledger/fabric/peer/common"
    26  	"github.com/hyperledger/fabric/protos/utils"
    27  
    28  	"github.com/spf13/cobra"
    29  )
    30  
    31  func updateCmd(cf *ChannelCmdFactory) *cobra.Command {
    32  	updateCmd := &cobra.Command{
    33  		Use:   "update",
    34  		Short: "Send a configtx update.",
    35  		Long:  "Signs and sends the supplied configtx update file to the channel. Requires '-f', '-o', '-c'.",
    36  		RunE: func(cmd *cobra.Command, args []string) error {
    37  			return update(cmd, args, cf)
    38  		},
    39  	}
    40  	flagList := []string{
    41  		"channelID",
    42  		"file",
    43  	}
    44  	attachFlags(updateCmd, flagList)
    45  
    46  	return updateCmd
    47  }
    48  
    49  func update(cmd *cobra.Command, args []string, cf *ChannelCmdFactory) error {
    50  	//the global chainID filled by the "-c" command
    51  	if chainID == common.UndefinedParamValue {
    52  		return errors.New("Must supply channel ID")
    53  	}
    54  
    55  	if channelTxFile == "" {
    56  		return InvalidCreateTx("No configtx file name supplied")
    57  	}
    58  
    59  	var err error
    60  	if cf == nil {
    61  		cf, err = InitCmdFactory(EndorserNotRequired, OrdererRequired)
    62  		if err != nil {
    63  			return err
    64  		}
    65  	}
    66  
    67  	fileData, err := ioutil.ReadFile(channelTxFile)
    68  	if err != nil {
    69  		return ConfigTxFileNotFound(err.Error())
    70  	}
    71  
    72  	ctxEnv, err := utils.UnmarshalEnvelope(fileData)
    73  	if err != nil {
    74  		return err
    75  	}
    76  
    77  	sCtxEnv, err := sanityCheckAndSignConfigTx(ctxEnv)
    78  	if err != nil {
    79  		return err
    80  	}
    81  
    82  	var broadcastClient common.BroadcastClient
    83  	broadcastClient, err = cf.BroadcastFactory()
    84  	if err != nil {
    85  		return fmt.Errorf("Error getting broadcast client: %s", err)
    86  	}
    87  
    88  	defer broadcastClient.Close()
    89  	return broadcastClient.Send(sCtxEnv)
    90  }