127 lines
4.8 KiB
Go
127 lines
4.8 KiB
Go
// Statping
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// Copyright (C) 2018. Hunter Long and the project contributors
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// Written by Hunter Long <info@socialeck.com> and the project contributors
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//
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// https://github.com/hunterlong/statping
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//
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// The licenses for most software and other practical works are designed
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// to take away your freedom to share and change the works. By contrast,
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// the GNU General Public License is intended to guarantee your freedom to
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// share and change all versions of a program--to make sure it remains free
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// software for all its users.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package notifiers
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import (
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"bytes"
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"errors"
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"fmt"
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"github.com/hunterlong/statping/core/notifier"
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"github.com/hunterlong/statping/types"
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"github.com/hunterlong/statping/utils"
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"strings"
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"text/template"
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"time"
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)
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const (
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slackMethod = "slack"
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failingTemplate = `{ "attachments": [ { "fallback": "Service {{.Service.Name}} - is currently failing", "text": "Your Statping service <{{.Service.Domain}}|{{.Service.Name}}> has just received a Failure notification based on your expected results. {{.Service.Name}} responded with a HTTP Status code of {{.Service.LastStatusCode}}.", "fields": [ { "title": "Expected Status Code", "value": "{{.Service.ExpectedStatus}}", "short": true }, { "title": "Received Status Code", "value": "{{.Service.LastStatusCode}}", "short": true } ,{ "title": "Error Message", "value": "{{.Issue}}", "short": false } ], "color": "#FF0000", "thumb_url": "https://statping.com", "footer": "Statping", "footer_icon": "https://img.cjx.io/statuplogo32.png" } ] }`
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successTemplate = `{ "attachments": [ { "fallback": "Service {{.Service.Name}} - is now back online", "text": "Your Statping service <{{.Service.Domain}}|{{.Service.Name}}> is now back online and meets your expected responses.", "color": "#00FF00", "thumb_url": "https://statping.com", "footer": "Statping", "footer_icon": "https://img.cjx.io/statuplogo32.png" } ] }`
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slackText = `{"text":"{{.}}"}`
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)
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type slack struct {
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*notifier.Notification
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}
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var Slacker = &slack{¬ifier.Notification{
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Method: slackMethod,
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Title: "slack",
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Description: "Send notifications to your slack channel when a service is offline. Insert your Incoming webhooker URL for your channel to receive notifications. Based on the <a href=\"https://api.slack.com/incoming-webhooks\">slack API</a>.",
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Author: "Hunter Long",
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AuthorUrl: "https://github.com/hunterlong",
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Delay: time.Duration(10 * time.Second),
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Host: "https://webhooksurl.slack.com/***",
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Icon: "fab fa-slack",
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Form: []notifier.NotificationForm{{
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Type: "text",
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Title: "Incoming webhooker Url",
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Placeholder: "Insert your slack Webhook URL here.",
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SmallText: "Incoming webhooker URL from <a href=\"https://api.slack.com/apps\" target=\"_blank\">slack Apps</a>",
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DbField: "Host",
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Required: true,
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}}},
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}
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func parseSlackMessage(id int64, temp string, data interface{}) error {
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buf := new(bytes.Buffer)
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slackTemp, _ := template.New("slack").Parse(temp)
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err := slackTemp.Execute(buf, data)
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if err != nil {
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return err
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}
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Slacker.AddQueue(fmt.Sprintf("service_%v", id), buf.String())
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return nil
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}
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type slackMessage struct {
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Service *types.Service
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Template string
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Time int64
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Issue string
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}
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// Send will send a HTTP Post to the slack webhooker API. It accepts type: string
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func (u *slack) Send(msg interface{}) error {
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message := msg.(string)
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_, _, err := utils.HttpRequest(u.Host, "POST", "application/json", nil, strings.NewReader(message), time.Duration(10*time.Second), true)
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return err
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}
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func (u *slack) Select() *notifier.Notification {
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return u.Notification
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}
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func (u *slack) OnTest() error {
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contents, _, err := utils.HttpRequest(u.Host, "POST", "application/json", nil, bytes.NewBuffer([]byte(`{"text":"testing message"}`)), time.Duration(10*time.Second), true)
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if string(contents) != "ok" {
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return errors.New("The slack response was incorrect, check the URL")
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}
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return err
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}
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// OnFailure will trigger failing service
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func (u *slack) OnFailure(s *types.Service, f *types.Failure) {
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message := slackMessage{
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Service: s,
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Template: failingTemplate,
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Time: utils.Now().Unix(),
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Issue: f.Issue,
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}
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parseSlackMessage(s.Id, failingTemplate, message)
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}
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// OnSuccess will trigger successful service
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func (u *slack) OnSuccess(s *types.Service) {
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if !s.Online {
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u.ResetUniqueQueue(fmt.Sprintf("service_%v", s.Id))
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message := slackMessage{
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Service: s,
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Template: successTemplate,
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Time: utils.Now().Unix(),
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}
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parseSlackMessage(s.Id, successTemplate, message)
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}
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}
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// OnSave triggers when this notifier has been saved
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func (u *slack) OnSave() error {
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message := fmt.Sprintf("Notification %v is receiving updated information.", u.Method)
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u.AddQueue("saved", message)
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return nil
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}
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