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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "github.com/csmith/goplum" | ||
| "github.com/csmith/goplum/plugins/pushover" | ||
| ) | ||
|
|
||
| func Plum() goplum.Plugin { | ||
| return pushover.Plugin{} | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| package pushover | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "encoding/json" | ||
| "fmt" | ||
| "github.com/csmith/goplum" | ||
| "io/ioutil" | ||
| "net/http" | ||
| "strings" | ||
| "time" | ||
| ) | ||
|
|
||
| var client = http.Client{Timeout: 20 * time.Second} | ||
|
|
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| type Plugin struct{} | ||
|
|
||
| func (p Plugin) Alert(kind string) goplum.Alert { | ||
| switch kind { | ||
| case "message": | ||
| return MessageAlert{} | ||
| default: | ||
| return nil | ||
| } | ||
| } | ||
|
|
||
| func (p Plugin) Check(_ string) goplum.Check { | ||
| return nil | ||
| } | ||
|
|
||
| type PushSettings struct { | ||
| Priority int | ||
| Sound string | ||
| Retry time.Duration | ||
| Expire time.Duration | ||
| } | ||
|
|
||
| type MessageAlert struct { | ||
| Token string | ||
| Key string | ||
| Devices []string | ||
| Failing PushSettings | ||
| Recovering PushSettings | ||
| errored bool | ||
| } | ||
|
|
||
| func (m MessageAlert) Send(details goplum.AlertDetails) error { | ||
| if m.errored { | ||
| return fmt.Errorf("pushover alert disabled as a non-recoverable API error was previously returned") | ||
| } | ||
|
|
||
| var settings PushSettings | ||
| if details.NewState == goplum.StateFailing { | ||
| settings = m.Failing | ||
| } else { | ||
| settings = m.Recovering | ||
| } | ||
|
|
||
| data := struct { | ||
| Token string `json:"token"` | ||
| User string `json:"user"` | ||
| Message string `json:"message"` | ||
| Device string `json:"device,omitempty"` | ||
| Priority int `json:"priority,omitempty"` | ||
| Sound string `json:"sound,omitempty"` | ||
| Timestamp int64 `json:"timestamp"` | ||
| Retry int `json:"retry,omitempty"` | ||
| Expire int `json:"expire,omitempty"` | ||
| }{ | ||
| Token: m.Token, | ||
| User: m.Key, | ||
| Message: details.Text, | ||
| Device: strings.Join(m.Devices, ","), | ||
| Priority: settings.Priority, | ||
| Sound: settings.Sound, | ||
| Retry: int(settings.Retry.Seconds()), | ||
| Expire: int(settings.Expire.Seconds()), | ||
| Timestamp: time.Now().Unix(), | ||
| } | ||
|
|
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| payload, err := json.Marshal(data) | ||
|
|
||
| req, err := http.NewRequest(http.MethodPost, "https://api.pushover.net/1/messages.json", bytes.NewReader(payload)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| req.Header.Add("Content-Type", "application/json") | ||
| res, err := client.Do(req) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| defer res.Body.Close() | ||
|
|
||
| if res.StatusCode >= 400 && res.StatusCode < 500 { | ||
| m.errored = true | ||
| body, _ := ioutil.ReadAll(res.Body) | ||
| return fmt.Errorf("error response from pushover, disabling alert: HTTP %d (%s)", res.StatusCode, body) | ||
| } else if res.StatusCode >= 500 { | ||
| return fmt.Errorf("bad response from pushover: HTTP %d", res.StatusCode) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func (m MessageAlert) Validate() error { | ||
| if len(m.Token) == 0 { | ||
| return fmt.Errorf("missing required argument: token") | ||
| } | ||
| if len(m.Key) == 0 { | ||
| return fmt.Errorf("missing required argument: key") | ||
| } | ||
| if err := m.validateSettings(m.Failing); err != nil { | ||
| return fmt.Errorf("failing block invalid: %v", err) | ||
| } | ||
| if err := m.validateSettings(m.Recovering); err != nil { | ||
| return fmt.Errorf("recovering block invalid: %v", err) | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (m MessageAlert) validateSettings(settings PushSettings) error { | ||
| if settings.Priority < -1 || settings.Priority > 2 { | ||
| return fmt.Errorf("priority must be in range -2..+2") | ||
| } | ||
|
|
||
| if settings.Retry != 0 && settings.Retry < 30 * time.Second { | ||
| return fmt.Errorf("retry must be at least 30 seconds") | ||
| } | ||
|
|
||
| if settings.Expire > 10800 * time.Second { | ||
| return fmt.Errorf("expire must be at most 10800 seconds (3 hours)") | ||
| } | ||
|
|
||
| if settings.Priority == 2 && (settings.Expire == 0 || settings.Retry == 0) { | ||
| return fmt.Errorf("expire and retry must be specified for emergency (2) priority") | ||
| } | ||
|
|
||
| return nil | ||
| } |