forked from hyperledger/fabric-sdk-go
/
utils.go
277 lines (239 loc) · 8.86 KB
/
utils.go
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/*
Copyright SecureKey Technologies Inc. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package integration
import (
"fmt"
"math/rand"
"os"
"strings"
"testing"
"time"
mspclient "github.com/hyperledger/fabric-sdk-go/pkg/client/msp"
"github.com/hyperledger/fabric-sdk-go/pkg/client/resmgmt"
"github.com/hyperledger/fabric-sdk-go/pkg/common/errors/retry"
"github.com/hyperledger/fabric-sdk-go/pkg/common/providers/core"
fabApi "github.com/hyperledger/fabric-sdk-go/pkg/common/providers/fab"
"github.com/hyperledger/fabric-sdk-go/pkg/core/config/lookup"
"github.com/hyperledger/fabric-sdk-go/pkg/core/cryptosuite"
"github.com/hyperledger/fabric-sdk-go/pkg/fabsdk"
"github.com/hyperledger/fabric-sdk-go/pkg/msp"
"github.com/pkg/errors"
)
const (
adminUser = "Admin"
ordererOrgName = "OrdererOrg"
ordererEndpoint = "orderer.example.com"
)
// GenerateRandomID generates random ID
func GenerateRandomID() string {
return randomString(10)
}
// Utility to create random string of strlen length
func randomString(strlen int) string {
const chars = "abcdefghijklmnopqrstuvwxyz0123456789"
result := make([]byte, strlen)
seed := rand.NewSource(time.Now().UnixNano())
rnd := rand.New(seed)
for i := 0; i < strlen; i++ {
result[i] = chars[rnd.Intn(len(chars))]
}
return string(result)
}
// InitializeChannel ...
func InitializeChannel(sdk *fabsdk.FabricSDK, orgID string, req resmgmt.SaveChannelRequest, targets []string) error {
joinedTargets, err := FilterTargetsJoinedChannel(sdk, orgID, req.ChannelID, targets)
if err != nil {
return errors.WithMessage(err, "checking for joined targets failed")
}
if len(joinedTargets) != len(targets) {
_, err := CreateChannel(sdk, req)
if err != nil {
return errors.Wrapf(err, "create channel failed")
}
_, err = JoinChannel(sdk, req.ChannelID, orgID, targets)
if err != nil {
return errors.Wrapf(err, "join channel failed")
}
}
return nil
}
// FilterTargetsJoinedChannel filters targets to those that have joined the named channel.
func FilterTargetsJoinedChannel(sdk *fabsdk.FabricSDK, orgID string, channelID string, targets []string) ([]string, error) {
var joinedTargets []string
//prepare context
clientContext := sdk.Context(fabsdk.WithUser(adminUser), fabsdk.WithOrg(orgID))
rc, err := resmgmt.New(clientContext)
if err != nil {
return nil, errors.WithMessage(err, "failed getting admin user session for org")
}
for _, target := range targets {
// Check if primary peer has joined channel
alreadyJoined, err := HasPeerJoinedChannel(rc, target, channelID)
if err != nil {
return nil, errors.WithMessage(err, "failed while checking if primary peer has already joined channel")
}
if alreadyJoined {
joinedTargets = append(joinedTargets, target)
}
}
return joinedTargets, nil
}
// CreateChannel attempts to save the named channel.
func CreateChannel(sdk *fabsdk.FabricSDK, req resmgmt.SaveChannelRequest) (bool, error) {
//prepare context
clientContext := sdk.Context(fabsdk.WithUser(adminUser), fabsdk.WithOrg(ordererOrgName))
// Channel management client is responsible for managing channels (create/update)
resMgmtClient, err := resmgmt.New(clientContext)
if err != nil {
return false, errors.WithMessage(err, "Failed to create new channel management client")
}
// Create channel (or update if it already exists)
if _, err = resMgmtClient.SaveChannel(req, resmgmt.WithRetry(retry.DefaultResMgmtOpts), resmgmt.WithOrdererEndpoint(ordererEndpoint)); err != nil {
return false, err
}
return true, nil
}
// JoinChannel attempts to save the named channel.
func JoinChannel(sdk *fabsdk.FabricSDK, name, orgID string, targets []string) (bool, error) {
//prepare context
clientContext := sdk.Context(fabsdk.WithUser(adminUser), fabsdk.WithOrg(orgID))
// Resource management client is responsible for managing resources (joining channels, install/instantiate/upgrade chaincodes)
resMgmtClient, err := resmgmt.New(clientContext)
if err != nil {
return false, errors.WithMessage(err, "Failed to create new resource management client")
}
if err := resMgmtClient.JoinChannel(
name,
resmgmt.WithRetry(retry.DefaultResMgmtOpts),
resmgmt.WithTargetEndpoints(targets...),
resmgmt.WithOrdererEndpoint(ordererEndpoint)); err != nil {
return false, nil
}
return true, nil
}
// OrgTargetPeers determines peer endpoints for orgs
func OrgTargetPeers(orgs []string, configBackend ...core.ConfigBackend) ([]string, error) {
networkConfig := fabApi.NetworkConfig{}
err := lookup.New(configBackend...).UnmarshalKey("organizations", &networkConfig.Organizations)
if err != nil {
return nil, errors.WithMessage(err, "failed to get organizations from config ")
}
var peers []string
for _, org := range orgs {
orgConfig, ok := networkConfig.Organizations[strings.ToLower(org)]
if !ok {
continue
}
peers = append(peers, orgConfig.Peers...)
}
return peers, nil
}
// SetupMultiOrgContext creates an OrgContext for two organizations in the org channel.
func SetupMultiOrgContext(sdk *fabsdk.FabricSDK, org1Name string, org2Name string, org1AdminUser string, org2AdminUser string) ([]*OrgContext, error) {
org1AdminContext := sdk.Context(fabsdk.WithUser(org1AdminUser), fabsdk.WithOrg(org1Name))
org1ResMgmt, err := resmgmt.New(org1AdminContext)
if err != nil {
return nil, err
}
org1MspClient, err := mspclient.New(sdk.Context(), mspclient.WithOrg(org1Name))
if err != nil {
return nil, err
}
org1Admin, err := org1MspClient.GetSigningIdentity(org1AdminUser)
if err != nil {
return nil, err
}
org2AdminContext := sdk.Context(fabsdk.WithUser(org2AdminUser), fabsdk.WithOrg(org2Name))
org2ResMgmt, err := resmgmt.New(org2AdminContext)
if err != nil {
return nil, err
}
org2MspClient, err := mspclient.New(sdk.Context(), mspclient.WithOrg(org2Name))
if err != nil {
return nil, err
}
org2Admin, err := org2MspClient.GetSigningIdentity(org2AdminUser)
if err != nil {
return nil, err
}
// Ensure that Gossip has propagated its view of local peers before invoking
// install since some peers may be missed if we call InstallCC too early
org1Peers, err := DiscoverLocalPeers(org1AdminContext, 2)
if err != nil {
return nil, errors.WithMessage(err, "discovery of local peers failed")
}
org2Peers, err := DiscoverLocalPeers(org2AdminContext, 2)
if err != nil {
return nil, errors.WithMessage(err, "discovery of local peers failed")
}
return []*OrgContext{
{
OrgID: org1Name,
CtxProvider: org1AdminContext,
ResMgmt: org1ResMgmt,
Peers: org1Peers,
SigningIdentity: org1Admin,
AnchorPeerConfigFile: "orgchannelOrg1MSPanchors.tx",
},
{
OrgID: org2Name,
CtxProvider: org2AdminContext,
ResMgmt: org2ResMgmt,
Peers: org2Peers,
SigningIdentity: org2Admin,
AnchorPeerConfigFile: "orgchannelOrg2MSPanchors.tx",
},
}, nil
}
// HasPeerJoinedChannel checks whether the peer has already joined the channel.
// It returns true if it has, false otherwise, or an error
func HasPeerJoinedChannel(client *resmgmt.Client, target string, channel string) (bool, error) {
foundChannel := false
response, err := client.QueryChannels(resmgmt.WithTargetEndpoints(target), resmgmt.WithRetry(retry.DefaultResMgmtOpts))
if err != nil {
return false, errors.WithMessage(err, "failed to query channel for peer")
}
for _, responseChannel := range response.Channels {
if responseChannel.ChannelId == channel {
foundChannel = true
}
}
return foundChannel, nil
}
// CleanupTestPath removes the contents of a state store.
func CleanupTestPath(t *testing.T, storePath string) {
err := os.RemoveAll(storePath)
if err != nil {
if t == nil {
panic(fmt.Sprintf("Cleaning up directory '%s' failed: %v", storePath, err))
}
t.Fatalf("Cleaning up directory '%s' failed: %v", storePath, err)
}
}
// CleanupUserData removes user data.
func CleanupUserData(t *testing.T, sdk *fabsdk.FabricSDK) {
var keyStorePath, credentialStorePath string
configBackend, err := sdk.Config()
if err != nil {
// if an error is returned from Config, it means configBackend was nil, in this case simply hard code
// the keyStorePath and credentialStorePath to the default values
// This case is mostly happening due to configless test that is not passing a ConfigProvider to the SDK
// which makes configBackend = nil.
// Since configless test uses the same config values as the default ones (config_test.yaml), it's safe to
// hard code these paths here
keyStorePath = "/tmp/msp/keystore"
credentialStorePath = "/tmp/state-store"
} else {
cryptoSuiteConfig := cryptosuite.ConfigFromBackend(configBackend)
identityConfig, err := msp.ConfigFromBackend(configBackend)
if err != nil {
t.Fatal(err)
}
keyStorePath = cryptoSuiteConfig.KeyStorePath()
credentialStorePath = identityConfig.CredentialStorePath()
}
CleanupTestPath(t, keyStorePath)
CleanupTestPath(t, credentialStorePath)
}