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peer-rpc-client.go
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peer-rpc-client.go
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/*
* Minio Cloud Storage, (C) 2018 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"context"
"crypto/tls"
"github.com/pydio/minio-srv/cmd/logger"
"github.com/pydio/minio-srv/pkg/event"
xnet "github.com/pydio/minio-srv/pkg/net"
"github.com/pydio/minio-srv/pkg/policy"
)
// PeerRPCClient - peer RPC client talks to peer RPC server.
type PeerRPCClient struct {
*RPCClient
}
// DeleteBucket - calls delete bucket RPC.
func (rpcClient *PeerRPCClient) DeleteBucket(bucketName string) error {
args := DeleteBucketArgs{BucketName: bucketName}
reply := VoidReply{}
return rpcClient.Call(peerServiceName+".DeleteBucket", &args, &reply)
}
// SetBucketPolicy - calls set bucket policy RPC.
func (rpcClient *PeerRPCClient) SetBucketPolicy(bucketName string, bucketPolicy *policy.Policy) error {
args := SetBucketPolicyArgs{
BucketName: bucketName,
Policy: *bucketPolicy,
}
reply := VoidReply{}
return rpcClient.Call(peerServiceName+".SetBucketPolicy", &args, &reply)
}
// RemoveBucketPolicy - calls remove bucket policy RPC.
func (rpcClient *PeerRPCClient) RemoveBucketPolicy(bucketName string) error {
args := RemoveBucketPolicyArgs{
BucketName: bucketName,
}
reply := VoidReply{}
return rpcClient.Call(peerServiceName+".RemoveBucketPolicy", &args, &reply)
}
// PutBucketNotification - calls put bukcet notification RPC.
func (rpcClient *PeerRPCClient) PutBucketNotification(bucketName string, rulesMap event.RulesMap) error {
args := PutBucketNotificationArgs{
BucketName: bucketName,
RulesMap: rulesMap,
}
reply := VoidReply{}
return rpcClient.Call(peerServiceName+".PutBucketNotification", &args, &reply)
}
// ListenBucketNotification - calls listen bucket notification RPC.
func (rpcClient *PeerRPCClient) ListenBucketNotification(bucketName string, eventNames []event.Name,
pattern string, targetID event.TargetID, addr xnet.Host) error {
args := ListenBucketNotificationArgs{
BucketName: bucketName,
EventNames: eventNames,
Pattern: pattern,
TargetID: targetID,
Addr: addr,
}
reply := VoidReply{}
return rpcClient.Call(peerServiceName+".ListenBucketNotification", &args, &reply)
}
// RemoteTargetExist - calls remote target ID exist RPC.
func (rpcClient *PeerRPCClient) RemoteTargetExist(bucketName string, targetID event.TargetID) (bool, error) {
args := RemoteTargetExistArgs{
BucketName: bucketName,
TargetID: targetID,
}
var reply bool
err := rpcClient.Call(peerServiceName+".RemoteTargetExist", &args, &reply)
return reply, err
}
// SendEvent - calls send event RPC.
func (rpcClient *PeerRPCClient) SendEvent(bucketName string, targetID, remoteTargetID event.TargetID, eventData event.Event) error {
args := SendEventArgs{
BucketName: bucketName,
TargetID: remoteTargetID,
Event: eventData,
}
var reply bool
err := rpcClient.Call(peerServiceName+".SendEvent", &args, &reply)
if err != nil && !reply {
reqInfo := &logger.ReqInfo{BucketName: bucketName}
reqInfo.AppendTags("targetID", targetID.Name)
reqInfo.AppendTags("event", eventData.EventName.String())
ctx := logger.SetReqInfo(context.Background(), reqInfo)
logger.LogIf(ctx, err)
globalNotificationSys.RemoveRemoteTarget(bucketName, targetID)
}
return err
}
// LoadCredentials - calls load credentials RPC.
func (rpcClient *PeerRPCClient) LoadCredentials() error {
args := AuthArgs{}
reply := VoidReply{}
return rpcClient.Call(peerServiceName+".SetCredentials", &args, &reply)
}
// NewPeerRPCClient - returns new peer RPC client.
func NewPeerRPCClient(host *xnet.Host) (*PeerRPCClient, error) {
scheme := "http"
if globalIsSSL {
scheme = "https"
}
serviceURL := &xnet.URL{
Scheme: scheme,
Host: host.String(),
Path: peerServicePath,
}
var tlsConfig *tls.Config
if globalIsSSL {
tlsConfig = &tls.Config{
ServerName: host.Name,
RootCAs: globalRootCAs,
}
}
rpcClient, err := NewRPCClient(
RPCClientArgs{
NewAuthTokenFunc: newAuthToken,
RPCVersion: globalRPCAPIVersion,
ServiceName: peerServiceName,
ServiceURL: serviceURL,
TLSConfig: tlsConfig,
},
)
if err != nil {
return nil, err
}
return &PeerRPCClient{rpcClient}, nil
}
// makeRemoteRPCClients - creates Peer RPCClients for given endpoint list.
func makeRemoteRPCClients(endpoints EndpointList) map[xnet.Host]*PeerRPCClient {
peerRPCClientMap := make(map[xnet.Host]*PeerRPCClient)
for _, hostStr := range GetRemotePeers(endpoints) {
host, err := xnet.ParseHost(hostStr)
logger.FatalIf(err, "Unable to parse peer RPC Host")
rpcClient, err := NewPeerRPCClient(host)
logger.FatalIf(err, "Unable to parse peer RPC Client")
peerRPCClientMap[*host] = rpcClient
}
return peerRPCClientMap
}