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127 lines
3.0 KiB
127 lines
3.0 KiB
/*
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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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"bytes"
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"crypto/tls"
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"crypto/x509"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"net"
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"net/http"
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"net/url"
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"time"
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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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)
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// WebhookArgs - Webhook target arguments.
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type WebhookArgs struct {
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Enable bool `json:"enable"`
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Endpoint xnet.URL `json:"endpoint"`
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RootCAs *x509.CertPool `json:"-"`
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}
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// Validate WebhookArgs fields
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func (w WebhookArgs) Validate() error {
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if !w.Enable {
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return nil
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}
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if w.Endpoint.IsEmpty() {
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return errors.New("endpoint empty")
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}
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return nil
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}
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// WebhookTarget - Webhook target.
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type WebhookTarget struct {
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id event.TargetID
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args WebhookArgs
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httpClient *http.Client
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}
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// ID - returns target ID.
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func (target WebhookTarget) ID() event.TargetID {
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return target.id
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}
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// Send - sends event to Webhook.
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func (target *WebhookTarget) Send(eventData event.Event) error {
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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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req, err := http.NewRequest("POST", target.args.Endpoint.String(), bytes.NewReader(data))
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if err != nil {
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return err
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}
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// req.Header.Set("User-Agent", globalServerUserAgent)
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req.Header.Set("Content-Type", "application/json")
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resp, err := target.httpClient.Do(req)
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if err != nil {
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return err
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}
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// FIXME: log returned error. ignore time being.
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io.Copy(ioutil.Discard, resp.Body)
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_ = resp.Body.Close()
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if resp.StatusCode < 200 || resp.StatusCode > 299 {
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return fmt.Errorf("sending event failed with %v", resp.Status)
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}
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return nil
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}
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// Close - does nothing and available for interface compatibility.
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func (target *WebhookTarget) Close() error {
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return nil
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}
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// NewWebhookTarget - creates new Webhook target.
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func NewWebhookTarget(id string, args WebhookArgs) *WebhookTarget {
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return &WebhookTarget{
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id: event.TargetID{id, "webhook"},
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args: args,
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httpClient: &http.Client{
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Transport: &http.Transport{
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TLSClientConfig: &tls.Config{RootCAs: args.RootCAs},
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DialContext: (&net.Dialer{
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Timeout: 5 * time.Second,
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KeepAlive: 5 * time.Second,
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}).DialContext,
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TLSHandshakeTimeout: 3 * time.Second,
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ResponseHeaderTimeout: 3 * time.Second,
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ExpectContinueTimeout: 2 * time.Second,
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},
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},
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}
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}
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