119 lines
3.2 KiB
Go
119 lines
3.2 KiB
Go
// Copyright 2019 Prometheus Team
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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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package hipchat
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"net/http"
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"github.com/go-kit/kit/log"
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commoncfg "github.com/prometheus/common/config"
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"github.com/prometheus/alertmanager/config"
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"github.com/prometheus/alertmanager/notify"
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"github.com/prometheus/alertmanager/template"
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"github.com/prometheus/alertmanager/types"
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)
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// Notifier implements a Notifier for Hipchat notifications.
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type Notifier struct {
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conf *config.HipchatConfig
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tmpl *template.Template
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logger log.Logger
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client *http.Client
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}
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// New returns a new Hipchat notification handler.
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func New(c *config.HipchatConfig, t *template.Template, l log.Logger) (*Notifier, error) {
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client, err := commoncfg.NewClientFromConfig(*c.HTTPConfig, "hipchat")
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if err != nil {
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return nil, err
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}
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return &Notifier{
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conf: c,
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tmpl: t,
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logger: l,
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client: client,
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}, nil
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}
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type hipchatReq struct {
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From string `json:"from"`
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Notify bool `json:"notify"`
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Message string `json:"message"`
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MessageFormat string `json:"message_format"`
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Color string `json:"color"`
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}
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// Notify implements the Notifier interface.
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func (n *Notifier) Notify(ctx context.Context, as ...*types.Alert) (bool, error) {
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var err error
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var msg string
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var (
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data = notify.GetTemplateData(ctx, n.tmpl, as, n.logger)
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tmplText = notify.TmplText(n.tmpl, data, &err)
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tmplHTML = notify.TmplHTML(n.tmpl, data, &err)
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roomid = tmplText(n.conf.RoomID)
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apiURL = n.conf.APIURL.Copy()
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)
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apiURL.Path += fmt.Sprintf("v2/room/%s/notification", roomid)
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q := apiURL.Query()
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q.Set("auth_token", string(n.conf.AuthToken))
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apiURL.RawQuery = q.Encode()
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if n.conf.MessageFormat == "html" {
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msg = tmplHTML(n.conf.Message)
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} else {
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msg = tmplText(n.conf.Message)
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}
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req := &hipchatReq{
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From: tmplText(n.conf.From),
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Notify: n.conf.Notify,
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Message: msg,
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MessageFormat: n.conf.MessageFormat,
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Color: tmplText(n.conf.Color),
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}
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if err != nil {
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return false, err
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}
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var buf bytes.Buffer
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if err := json.NewEncoder(&buf).Encode(req); err != nil {
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return false, err
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}
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resp, err := notify.PostJSON(ctx, n.client, apiURL.String(), &buf)
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if err != nil {
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return true, notify.RedactURL(err)
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}
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defer notify.Drain(resp)
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return n.retry(resp.StatusCode)
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}
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func (n *Notifier) retry(statusCode int) (bool, error) {
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// Response codes 429 (rate limiting) and 5xx can potentially recover.
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// 2xx response codes indicate successful requests.
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// https://developer.atlassian.com/hipchat/guide/hipchat-rest-api/api-response-codes
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if statusCode/100 != 2 {
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return (statusCode == 429 || statusCode/100 == 5), fmt.Errorf("unexpected status code %v", statusCode)
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}
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return false, nil
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}
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