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151 lines
3.3 KiB
151 lines
3.3 KiB
/*
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* Minio Cloud Storage, (C) 2016, 2017 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 cmd
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import (
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"crypto/tls"
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"fmt"
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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/Sirupsen/logrus"
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)
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type webhookNotify struct {
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Enable bool `json:"enable"`
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Endpoint string `json:"endpoint"`
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}
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func (w *webhookNotify) Validate() error {
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if !w.Enable {
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return nil
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}
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if _, err := checkURL(w.Endpoint); 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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type httpConn struct {
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*http.Client
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Endpoint string
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}
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// Lookup endpoint address by successfully dialing.
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func lookupEndpoint(u *url.URL) error {
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dialer := &net.Dialer{
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Timeout: 300 * time.Millisecond,
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KeepAlive: 300 * time.Millisecond,
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}
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nconn, err := dialer.Dial("tcp", canonicalAddr(u))
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if err != nil {
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return err
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}
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return nconn.Close()
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}
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// Initializes new webhook logrus notifier.
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func newWebhookNotify(accountID string) (*logrus.Logger, error) {
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rNotify := serverConfig.Notify.GetWebhookByID(accountID)
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if rNotify.Endpoint == "" {
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return nil, errInvalidArgument
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}
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u, err := url.Parse(rNotify.Endpoint)
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if err != nil {
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return nil, err
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}
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if err = lookupEndpoint(u); err != nil {
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return nil, err
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}
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conn := httpConn{
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// Configure aggressive timeouts for client posts.
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Client: &http.Client{
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Transport: &http.Transport{
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TLSClientConfig: &tls.Config{RootCAs: globalRootCAs},
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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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Endpoint: rNotify.Endpoint,
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}
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notifyLog := logrus.New()
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notifyLog.Out = ioutil.Discard
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// Set default JSON formatter.
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notifyLog.Formatter = new(logrus.JSONFormatter)
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notifyLog.Hooks.Add(conn)
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// Success
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return notifyLog, nil
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}
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// Fire is called when an event should be sent to the message broker.
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func (n httpConn) Fire(entry *logrus.Entry) error {
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body, err := entry.Reader()
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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", n.Endpoint, body)
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if err != nil {
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return err
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}
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// Set content-type.
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req.Header.Set("Content-Type", "application/json")
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// Set proper server user-agent.
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req.Header.Set("User-Agent", globalServerUserAgent)
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// Initiate the http request.
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resp, err := n.Do(req)
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if err != nil {
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return err
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}
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// Make sure to close the response body so the connection can be re-used.
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK &&
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resp.StatusCode != http.StatusAccepted &&
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resp.StatusCode != http.StatusContinue {
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return fmt.Errorf("Unable to send event %s", resp.Status)
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}
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return nil
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}
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// Levels are Required for logrus hook implementation
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func (httpConn) Levels() []logrus.Level {
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return []logrus.Level{
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logrus.InfoLevel,
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}
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}
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