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minio/cmd/bucket-notification-datatyp...

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/*
* Minio Cloud Storage, (C) 2016 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 (
"encoding/xml"
"errors"
)
// Represents the criteria for the filter rule.
type filterRule struct {
Name string `xml:"Name"`
Value string `xml:"Value"`
}
// Collection of filter rules per service config.
type keyFilter struct {
FilterRules []filterRule `xml:"FilterRule,omitempty"`
}
type filterStruct struct {
Key keyFilter `xml:"S3Key,omitempty" json:"S3Key,omitempty"`
}
// ServiceConfig - Common elements of service notification.
type ServiceConfig struct {
Events []string `xml:"Event" json:"Event"`
Filter filterStruct `xml:"Filter" json:"Filter"`
ID string `xml:"Id" json:"Id"`
}
// Queue SQS configuration.
type queueConfig struct {
ServiceConfig
QueueARN string `xml:"Queue"`
}
// Topic SNS configuration, this is a compliance field not used by minio yet.
type topicConfig struct {
ServiceConfig
TopicARN string `xml:"Topic" json:"Topic"`
}
// Lambda function configuration, this is a compliance field not used by minio yet.
type lambdaConfig struct {
ServiceConfig
LambdaARN string `xml:"CloudFunction"`
}
// Notification configuration structure represents the XML format of
// notification configuration of buckets.
type notificationConfig struct {
XMLName xml.Name `xml:"NotificationConfiguration"`
QueueConfigs []queueConfig `xml:"QueueConfiguration"`
LambdaConfigs []lambdaConfig `xml:"CloudFunctionConfiguration"`
}
// listenerConfig structure represents run-time notification
// configuration for live listeners
type listenerConfig struct {
TopicConfig topicConfig `json:"TopicConfiguration"`
TargetServer string `json:"TargetServer"`
}
// Internal error used to signal notifications not set.
var errNoSuchNotifications = errors.New("The specified bucket does not have bucket notifications")
// EventName is AWS S3 event type:
// http://docs.aws.amazon.com/AmazonS3/latest/dev/NotificationHowTo.html
type EventName int
const (
// ObjectCreatedPut is s3:ObjectCreated:Put
ObjectCreatedPut EventName = iota
// ObjectCreatedPost is s3:ObjectCreated:Post
ObjectCreatedPost
// ObjectCreatedCopy is s3:ObjectCreated:Copy
ObjectCreatedCopy
// ObjectCreatedCompleteMultipartUpload is s3:ObjectCreated:CompleteMultipartUpload
ObjectCreatedCompleteMultipartUpload
// ObjectRemovedDelete is s3:ObjectRemoved:Delete
ObjectRemovedDelete
// ObjectAccessedGet is s3:ObjectAccessed:Get
ObjectAccessedGet
// ObjectAccessedHead is s3:ObjectAccessed:Head
ObjectAccessedHead
)
// Stringer interface for event name.
func (eventName EventName) String() string {
switch eventName {
case ObjectCreatedPut:
return "s3:ObjectCreated:Put"
case ObjectCreatedPost:
return "s3:ObjectCreated:Post"
case ObjectCreatedCopy:
return "s3:ObjectCreated:Copy"
case ObjectCreatedCompleteMultipartUpload:
return "s3:ObjectCreated:CompleteMultipartUpload"
case ObjectRemovedDelete:
return "s3:ObjectRemoved:Delete"
case ObjectAccessedGet:
return "s3:ObjectAccessed:Get"
case ObjectAccessedHead:
return "s3:ObjectAccessed:Head"
default:
return "s3:Unknown"
}
}
// Indentity represents the accessKey who caused the event.
type identity struct {
PrincipalID string `json:"principalId"`
}
// Notification event bucket metadata.
type bucketMeta struct {
Name string `json:"name"`
OwnerIdentity identity `json:"ownerIdentity"`
ARN string `json:"arn"`
}
// Notification event object metadata.
type objectMeta struct {
Key string `json:"key"`
Size int64 `json:"size,omitempty"`
ETag string `json:"eTag,omitempty"`
ContentType string `json:"contentType,omitempty"`
UserDefined map[string]string `json:"userDefined,omitempty"`
VersionID string `json:"versionId,omitempty"`
Sequencer string `json:"sequencer"`
}
const (
// Event schema version number defaulting to the value in S3 spec.
// ref: http://docs.aws.amazon.com/AmazonS3/latest/dev/notification-content-structure.html
eventSchemaVersion = "1.0"
// Default ID found in bucket notification configuration.
// ref: http://docs.aws.amazon.com/AmazonS3/latest/dev/notification-content-structure.html
eventConfigID = "Config"
)
const (
// Response element origin endpoint key.
responseOriginEndpointKey = "x-minio-origin-endpoint"
)
// Notification event server specific metadata.
type eventMeta struct {
SchemaVersion string `json:"s3SchemaVersion"`
ConfigurationID string `json:"configurationId"`
Bucket bucketMeta `json:"bucket"`
Object objectMeta `json:"object"`
}
const (
// Event source static value defaulting to the value in S3 spec.
// ref: http://docs.aws.amazon.com/AmazonS3/latest/dev/notification-content-structure.html
eventSource = "aws:s3"
// Event version number defaulting to the value in S3 spec.
// ref: http://docs.aws.amazon.com/AmazonS3/latest/dev/notification-content-structure.html
eventVersion = "2.0"
)
// sourceInfo represents information on the client that triggered the
// event notification.
type sourceInfo struct {
Host string `json:"host"`
Port string `json:"port"`
UserAgent string `json:"userAgent"`
}
// NotificationEvent represents an Amazon an S3 bucket notification event.
type NotificationEvent struct {
EventVersion string `json:"eventVersion"`
EventSource string `json:"eventSource"`
AwsRegion string `json:"awsRegion"`
EventTime string `json:"eventTime"`
EventName string `json:"eventName"`
UserIdentity identity `json:"userIdentity"`
RequestParameters map[string]string `json:"requestParameters"`
ResponseElements map[string]string `json:"responseElements"`
S3 eventMeta `json:"s3"`
Source sourceInfo `json:"source"`
}
// Represents the minio sqs type and account id's.
type arnSQS struct {
Type string
AccountID string
}
// Stringer for constructing AWS ARN compatible string.
func (m arnSQS) String() string {
return minioSqs + serverConfig.GetRegion() + ":" + m.AccountID + ":" + m.Type
}