quantum-inspiration / files / pushover.go
pushover.go
| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "fmt" |
| 5 | "net/http" |
| 6 | "net/url" |
| 7 | "os" |
| 8 | ) |
| 9 | |
| 10 | const ( |
| 11 | pushoverTokenEnvVar = "PUSHOVER_QUANTUM_INSPIRATION_TOKEN" |
| 12 | pushoverUserTokenEnvVar = "PUSHOVER_USER_TOKEN" |
| 13 | maxMessageLength = 1024 |
| 14 | // this project runs daily, so this is the max TTL for now |
| 15 | // if this project is run more frequently, then this value should be changed |
| 16 | ttlDays = 2 |
| 17 | |
| 18 | // automatically calculated, do not change |
| 19 | ttlSeconds = ttlDays * 24 * 60 * 60 |
| 20 | ) |
| 21 | |
| 22 | func CombineUpToMaxMessageLength(prefix string, moreInfo string, messages []string) string { |
| 23 | var combinedMessage = prefix |
| 24 | for _, message := range messages { |
| 25 | newMessage := combinedMessage + message |
| 26 | if len(newMessage)+len(moreInfo) > maxMessageLength { |
| 27 | combinedMessage += moreInfo |
| 28 | break |
| 29 | } |
| 30 | combinedMessage = newMessage |
| 31 | } |
| 32 | return combinedMessage |
| 33 | } |
| 34 | |
| 35 | func SendPushoverMessage(message string) error { |
| 36 | if len(message) > maxMessageLength { |
| 37 | return fmt.Errorf("message is too long: %d > %d", len(message), maxMessageLength) |
| 38 | } |
| 39 | postUrl := "https://api.pushover.net/1/messages.json" |
| 40 | |
| 41 | pushoverToken := os.Getenv(pushoverTokenEnvVar) |
| 42 | pushoverUser := os.Getenv(pushoverUserTokenEnvVar) |
| 43 | if pushoverUser == "" || pushoverToken == "" { |
| 44 | return fmt.Errorf("missing environment variable %s or %s", pushoverUserTokenEnvVar, pushoverTokenEnvVar) |
| 45 | } |
| 46 | |
| 47 | response, err := http.PostForm(postUrl, url.Values{ |
| 48 | "token": {pushoverToken}, |
| 49 | "user": {pushoverUser}, |
| 50 | "message": {message}, |
| 51 | "html": {"1"}, |
| 52 | "ttl": {fmt.Sprintf("%d", ttlSeconds)}, |
| 53 | }) |
| 54 | |
| 55 | if err != nil { |
| 56 | return err |
| 57 | } |
| 58 | defer response.Body.Close() |
| 59 | |
| 60 | isNot200 := response.StatusCode != 200 |
| 61 | if isNot200 { |
| 62 | return fmt.Errorf("pushover returned status code %d: %s", response.StatusCode, response.Status) |
| 63 | } |
| 64 | return nil |
| 65 | } |