Add Validate() to serverConfig to call it at server startup and in Admin SetConfig handler to minimize errors scenario after server restart.
161 lines
3.8 KiB
Go
161 lines
3.8 KiB
Go
/*
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* Minio Cloud Storage, (C) 2018 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package target
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import (
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"encoding/json"
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"net"
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"net/url"
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"sync"
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"github.com/minio/minio/pkg/event"
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xnet "github.com/minio/minio/pkg/net"
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"github.com/streadway/amqp"
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)
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// AMQPArgs - AMQP target arguments.
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type AMQPArgs struct {
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Enable bool `json:"enable"`
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URL xnet.URL `json:"url"`
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Exchange string `json:"exchange"`
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RoutingKey string `json:"routingKey"`
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ExchangeType string `json:"exchangeType"`
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DeliveryMode uint8 `json:"deliveryMode"`
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Mandatory bool `json:"mandatory"`
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Immediate bool `json:"immediate"`
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Durable bool `json:"durable"`
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Internal bool `json:"internal"`
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NoWait bool `json:"noWait"`
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AutoDeleted bool `json:"autoDeleted"`
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}
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// Validate AMQP arguments
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func (a *AMQPArgs) Validate() error {
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if !a.Enable {
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return nil
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}
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if _, err := amqp.ParseURI(a.URL.String()); err != nil {
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return err
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}
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return nil
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}
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// AMQPTarget - AMQP target
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type AMQPTarget struct {
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id event.TargetID
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args AMQPArgs
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conn *amqp.Connection
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connMutex sync.Mutex
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}
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// ID - returns TargetID.
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func (target *AMQPTarget) ID() event.TargetID {
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return target.id
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}
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func (target *AMQPTarget) channel() (*amqp.Channel, error) {
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isAMQPClosedErr := func(err error) bool {
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if err == amqp.ErrClosed {
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return true
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}
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if nerr, ok := err.(*net.OpError); ok {
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return (nerr.Err.Error() == "use of closed network connection")
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}
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return false
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}
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target.connMutex.Lock()
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defer target.connMutex.Unlock()
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ch, err := target.conn.Channel()
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if err == nil {
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return ch, nil
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}
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if !isAMQPClosedErr(err) {
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return nil, err
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}
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var conn *amqp.Connection
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if conn, err = amqp.Dial(target.args.URL.String()); err != nil {
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return nil, err
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}
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if ch, err = conn.Channel(); err != nil {
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return nil, err
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}
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target.conn = conn
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return ch, nil
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}
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// Send - sends event to AMQP.
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func (target *AMQPTarget) Send(eventData event.Event) error {
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ch, err := target.channel()
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if err != nil {
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return err
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}
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defer func() {
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// FIXME: log returned error. ignore time being.
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_ = ch.Close()
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}()
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objectName, err := url.QueryUnescape(eventData.S3.Object.Key)
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if err != nil {
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return err
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}
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key := eventData.S3.Bucket.Name + "/" + objectName
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data, err := json.Marshal(event.Log{eventData.EventName, key, []event.Event{eventData}})
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if err != nil {
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return err
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}
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if err = ch.ExchangeDeclare(target.args.Exchange, target.args.ExchangeType, target.args.Durable,
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target.args.AutoDeleted, target.args.Internal, target.args.NoWait, nil); err != nil {
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return err
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}
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return ch.Publish(target.args.Exchange, target.args.RoutingKey, target.args.Mandatory,
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target.args.Immediate, amqp.Publishing{
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ContentType: "application/json",
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DeliveryMode: target.args.DeliveryMode,
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Body: data,
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})
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}
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// Close - does nothing and available for interface compatibility.
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func (target *AMQPTarget) Close() error {
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return nil
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}
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// NewAMQPTarget - creates new AMQP target.
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func NewAMQPTarget(id string, args AMQPArgs) (*AMQPTarget, error) {
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conn, err := amqp.Dial(args.URL.String())
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if err != nil {
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return nil, err
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}
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return &AMQPTarget{
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id: event.TargetID{id, "amqp"},
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args: args,
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conn: conn,
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}, nil
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}
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