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136 lines
3.5 KiB
136 lines
3.5 KiB
/*
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* Minio Cloud Storage, (C) 2016 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 main
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import (
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"errors"
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"strings"
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"github.com/minio/minio/pkg/wildcard"
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)
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// SQS type.
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const (
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// Minio sqs ARN prefix.
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minioSqs = "arn:minio:sqs:"
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// Static string indicating queue type 'amqp'.
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queueTypeAMQP = "amqp"
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// Static string indicating queue type 'elasticsearch'.
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queueTypeElastic = "elasticsearch"
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// Static string indicating queue type 'redis'.
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queueTypeRedis = "redis"
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)
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// Topic type.
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const (
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// Minio topic ARN prefix.
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minioTopic = "arn:minio:sns:"
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// Static string indicating sns type 'listen'.
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snsTypeMinio = "listen"
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)
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var errNotifyNotEnabled = errors.New("requested notifier not enabled")
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// Notifier represents collection of supported notification queues.
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type notifier struct {
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AMQP map[string]amqpNotify `json:"amqp"`
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ElasticSearch map[string]elasticSearchNotify `json:"elasticsearch"`
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Redis map[string]redisNotify `json:"redis"`
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// Add new notification queues.
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}
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// Returns true if queueArn is for an AMQP queue.
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func isAMQPQueue(sqsArn arnSQS) bool {
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if sqsArn.Type != queueTypeAMQP {
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return false
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}
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amqpL := serverConfig.GetAMQPNotifyByID(sqsArn.AccountID)
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if !amqpL.Enable {
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return false
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}
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// Connect to amqp server to validate.
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amqpC, err := dialAMQP(amqpL)
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if err != nil {
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errorIf(err, "Unable to connect to amqp service. %#v", amqpL)
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return false
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}
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defer amqpC.Close()
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return true
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}
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// Returns true if queueArn is for an Redis queue.
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func isRedisQueue(sqsArn arnSQS) bool {
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if sqsArn.Type != queueTypeRedis {
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return false
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}
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rNotify := serverConfig.GetRedisNotifyByID(sqsArn.AccountID)
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if !rNotify.Enable {
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return false
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}
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// Connect to redis server to validate.
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rPool, err := dialRedis(rNotify)
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if err != nil {
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errorIf(err, "Unable to connect to redis service. %#v", rNotify)
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return false
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}
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defer rPool.Close()
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return true
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}
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// Returns true if queueArn is for an ElasticSearch queue.
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func isElasticQueue(sqsArn arnSQS) bool {
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if sqsArn.Type != queueTypeElastic {
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return false
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}
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esNotify := serverConfig.GetElasticSearchNotifyByID(sqsArn.AccountID)
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if !esNotify.Enable {
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return false
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}
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elasticC, err := dialElastic(esNotify)
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if err != nil {
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errorIf(err, "Unable to connect to elasticsearch service %#v", esNotify)
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return false
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}
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defer elasticC.Stop()
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return true
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}
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// Match function matches wild cards in 'pattern' for events.
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func eventMatch(eventType string, events []string) (ok bool) {
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for _, event := range events {
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ok = wildcard.Match(event, eventType)
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if ok {
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break
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}
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}
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return ok
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}
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// Filter rule match, matches an object against the filter rules.
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func filterRuleMatch(object string, frs []filterRule) bool {
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var prefixMatch, suffixMatch = true, true
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for _, fr := range frs {
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if isValidFilterNamePrefix(fr.Name) {
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prefixMatch = strings.HasPrefix(object, fr.Value)
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} else if isValidFilterNameSuffix(fr.Name) {
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suffixMatch = strings.HasSuffix(object, fr.Value)
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}
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}
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return prefixMatch && suffixMatch
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}
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