コード例 #1
0
ファイル: db.go プロジェクト: ivahaev/gosms
func getPendingMessages(bufferSize int) (result []SMS, err error) {
	log.Info("getPendingMessages ")
	allMessages, err := sdb.GetAll(bucket)
	if err != nil {
		log.Error(err)
		return
	}
	result = []SMS{}
	for _, _m := range allMessages {
		sms := SMS{}
		err := json.Unmarshal(_m, &sms)
		if err != nil {
			log.Error(err)
			return nil, err
		}
		if sms.Status != SMSProcessed && sms.Retries < SMSRetryLimit {
			result = append(result, sms)
		}
		if len(result) >= bufferSize {
			break
		}
	}

	return
}
コード例 #2
0
ファイル: main.go プロジェクト: uzhinskiy/gosms
func main() {

	log.Info("main: ", "Initializing gosms")
	//load the config, abort if required config is not preset
	appConfig, err := gosms.GetConfig("conf.ini")
	if err != nil {
		log.Error("main: ", "Invalid config: ", err.Error(), " Aborting")
		os.Exit(1)
	}

	db, err := gosms.InitDB("sqlite3", "db.sqlite")
	if err != nil {
		log.Info("main: ", "Error initializing database: ", err, " Aborting")
		os.Exit(1)
	}
	defer db.Close()

	serverhost, _ := appConfig.Get("SETTINGS", "SERVERHOST")
	serverport, _ := appConfig.Get("SETTINGS", "SERVERPORT")

	_numDevices, _ := appConfig.Get("SETTINGS", "DEVICES")
	numDevices, _ := strconv.Atoi(_numDevices)
	log.Info("main: number of devices: ", numDevices)

	var modems []*modem.GSMModem
	for i := 0; i < numDevices; i++ {
		dev := fmt.Sprintf("DEVICE%v", i)
		_port, _ := appConfig.Get(dev, "COMPORT")
		_baud := 115200 //appConfig.Get(dev, "BAUDRATE")
		_devid, _ := appConfig.Get(dev, "DEVID")
		m := modem.New(_port, _baud, _devid)
		modems = append(modems, m)
	}

	_bufferSize, _ := appConfig.Get("SETTINGS", "BUFFERSIZE")
	bufferSize, _ := strconv.Atoi(_bufferSize)

	_bufferLow, _ := appConfig.Get("SETTINGS", "BUFFERLOW")
	bufferLow, _ := strconv.Atoi(_bufferLow)

	_loaderTimeout, _ := appConfig.Get("SETTINGS", "MSGTIMEOUT")
	loaderTimeout, _ := strconv.Atoi(_loaderTimeout)

	_loaderCountout, _ := appConfig.Get("SETTINGS", "MSGCOUNTOUT")
	loaderCountout, _ := strconv.Atoi(_loaderCountout)

	_loaderTimeoutLong, _ := appConfig.Get("SETTINGS", "MSGTIMEOUTLONG")
	loaderTimeoutLong, _ := strconv.Atoi(_loaderTimeoutLong)

	log.Info("main: Initializing worker")
	gosms.InitWorker(modems, bufferSize, bufferLow, loaderTimeout, loaderCountout, loaderTimeoutLong)

	log.Info("main: Initializing server")
	err = InitServer(serverhost, serverport)
	if err != nil {
		log.Error("main: ", "Error starting server: ", err.Error(), " Aborting")
		os.Exit(1)
	}
}
コード例 #3
0
ファイル: worker.go プロジェクト: uzhinskiy/gosms
func InitWorker(modems []*modem.GSMModem, bufferSize, bufferLow, loaderTimeout, countOut, loaderLongTimeout int) {
	log.Info("--- InitWorker")

	bufferMaxSize = bufferSize
	bufferLowCount = bufferLow
	messageLoaderTimeout = time.Duration(loaderTimeout) * time.Minute
	messageLoaderCountout = countOut
	messageLoaderLongTimeout = time.Duration(loaderLongTimeout) * time.Minute

	messages = make(chan SMS, bufferMaxSize)
	wakeupMessageLoader = make(chan bool, 1)
	wakeupMessageLoader <- true
	messageCountSinceLastWakeup = 0
	timeOfLastWakeup = time.Now().Add((time.Duration(loaderTimeout) * -1) * time.Minute) //older time handles the cold start state of the system

	// its important to init messages channel before starting modems because nil
	// channel is non-blocking

	for i := 0; i < len(modems); i++ {
		modem := modems[i]
		err := modem.Connect()
		if err != nil {
			log.Error("InitWorker: error connecting", modem.DeviceId, err)
			continue
		}
		go processMessages(modem)
	}
	go messageLoader(bufferMaxSize, bufferLowCount)
}
コード例 #4
0
ファイル: modem.go プロジェクト: ivahaev/gosms
func (m *GSMModem) SendCommand(command string, waitForOk bool) string {
	log.Info("SendCommand: ", command)
	var status string = ""
	m.Port.Flush()
	_, err := m.Port.Write([]byte(command))
	if err != nil {
		log.Error(err)
		return ""
	}
	buf := make([]byte, 32)
	var loop int = 1
	if waitForOk {
		loop = 10
	}
	for i := 0; i < loop; i++ {
		// ignoring error as EOF raises error on Linux
		n, _ := m.Port.Read(buf)
		if n > 0 {
			status = string(buf[:n])
			log.Info("SendCommand: rcvd bytes: ", n, status)
			if strings.Contains(status, "OK\r\n") || strings.Contains(status, "ERROR\r\n") {
				break
			}
		}
	}
	return status
}
コード例 #5
0
ファイル: db.go プロジェクト: ivahaev/gosms
func insertMessage(sms *SMS) error {
	log.Info("insertMessage ", sms)
	err := sdb.Save(bucket, sms.UUID, sms)
	if err != nil {
		log.Error("Error when inserting message: ", err)
	}
	return nil
}
コード例 #6
0
ファイル: db.go プロジェクト: ivahaev/gosms
func GetMessages(filter string) (result []SMS, err error) {
	log.Info("GetMessages")
	allMessages, err := sdb.GetAll(bucket)
	if err != nil {
		log.Error(err)
		return
	}
	result = []SMS{}
	for _, _m := range allMessages {
		sms := SMS{}
		err := json.Unmarshal(_m, &sms)
		if err != nil {
			log.Error("Error when unmarshaling message: ", err)
			return nil, err
		}
		//		if sms.Status != SMSProcessed && sms.Retries < SMSRetryLimit {
		result = append(result, sms)
		//		}
	}
	return result, nil
}
コード例 #7
0
ファイル: db.go プロジェクト: ivahaev/gosms
func GetStatusSummary() ([]int, error) {
	log.Info("GetStatusSummary")
	allMessages, err := GetMessages("")
	if err != nil {
		log.Error(err)
		return nil, err
	}
	statusSummary := make([]int, 3)
	for _, sms := range allMessages {
		statusSummary[sms.Status]++
	}
	return statusSummary, nil
}
コード例 #8
0
ファイル: db.go プロジェクト: ivahaev/gosms
func updateMessageStatus(sms SMS) error {
	log.Info("updateMessageStatus ", sms)
	encoded, err := sdb.Get(bucket, sms.UUID)
	if err != nil {
		log.Error("Error when getting message: ", err)
		return err
	}
	oldSms := SMS{}
	err = json.Unmarshal(encoded, &oldSms)
	if err != nil {
		log.Error("Error when unmarshaling message: ", err)
		return err
	}
	oldSms.Status = sms.Status
	oldSms.Retries = sms.Retries
	oldSms.Device = sms.Device
	oldSms.UpdatedAt = time.Now()
	err = sdb.Save(bucket, oldSms.UUID, oldSms)
	if err != nil {
		log.Error("Error when inserting message: ", err)
	}
	return err
}
コード例 #9
0
ファイル: worker.go プロジェクト: uzhinskiy/gosms
func messageLoader(bufferSize, minFill int) {
	// Load pending messages from database as needed
	for {

		/*
		   - set a fairly long timeout for wakeup
		   - if there are very few number of messages in the system and they failed at first go,
		   and there are no events happening to call EnqueueMessage, those messages might get
		   stalled in the system until someone knocks on the API door
		   - we can afford a really long polling in this case
		*/
		timeout := make(chan bool, 1)
		go func() {
			time.Sleep(messageLoaderLongTimeout)
			timeout <- true
		}()
		log.Info("messageLoader: ", "waiting for wakeup call")
		select {
		case <-wakeupMessageLoader:
			log.Info("messageLoader: woken up by channel call")
		case <-timeout:
			log.Info("messageLoader: woken up by timeout")
		}
		if len(messages) >= bufferLowCount {
			//if we have sufficient number of messages to process,
			//don't bother hitting the database
			log.Info("messageLoader: ", "I have sufficient messages")
			continue
		}

		countToFetch := bufferMaxSize - len(messages)
		log.Info("messageLoader: ", "I need to fetch more messages", countToFetch)
		pendingMsgs, err := getPendingMessages(countToFetch)
		if err == nil {
			log.Info("messageLoader: ", len(pendingMsgs), " pending messages found")
			for _, msg := range pendingMsgs {
				messages <- msg
			}
		} else {
			log.Error(err)
		}
	}
}
コード例 #10
0
ファイル: server.go プロジェクト: uzhinskiy/gosms
// dumps JSON data, used by log view. Methods allowed: GET
func getLogsHandler(w http.ResponseWriter, r *http.Request) {
	log.Info("--- getLogsHandler")
	messages, _ := gosms.GetMessages("")
	summary, _ := gosms.GetStatusSummary()
	dayCount, _ := gosms.GetLast7DaysMessageCount()
	logs := SMSDataResponse{
		Status:   200,
		Message:  "ok",
		Summary:  summary,
		DayCount: dayCount,
		Messages: messages,
	}
	var toWrite []byte
	toWrite, err := json.Marshal(logs)
	if err != nil {
		log.Error(err)
		//lets just depend on the server to raise 500
	}
	w.Header().Set("Content-type", "application/json")
	w.Write(toWrite)
}
コード例 #11
0
ファイル: server.go プロジェクト: uzhinskiy/gosms
// push sms, allowed methods: POST
func sendSMSHandler(w http.ResponseWriter, r *http.Request) {
	log.Info("--- sendSMSHandler")
	w.Header().Set("Content-type", "application/json")

	//TODO: validation
	r.ParseForm()
	mobile := r.FormValue("mobile")
	message := r.FormValue("message")
	uuid := uuid.NewV4()
	sms := &gosms.SMS{UUID: uuid.String(), Mobile: mobile, Body: message, Retries: 0, CreatedAt: time.Now()}
	gosms.EnqueueMessage(sms, true)

	smsresp := SMSResponse{Status: 200, Message: "ok"}
	var toWrite []byte
	toWrite, err := json.Marshal(smsresp)
	if err != nil {
		log.Error(err)
		//lets just depend on the server to raise 500
	}
	w.Write(toWrite)
}
コード例 #12
0
ファイル: db.go プロジェクト: ivahaev/gosms
func GetLast7DaysMessageCount() (map[string]int, error) {
	log.Info("GetLast7DaysMessageCount")
	allMessages, err := GetMessages("")
	if err != nil {
		log.Error(err)
		return nil, err
	}
	dayCount := make(map[string]int)
	fromDate := time.Now().Add(-time.Hour * 24 * 8)
	for _, sms := range allMessages {
		if sms.CreatedAt.After(fromDate) {
			createdAt := sms.CreatedAt.Format("2006-01-02")
			count, ok := dayCount[createdAt]
			if ok {
				count++
			} else {
				count = 1
			}
			dayCount[createdAt] = count
		}
	}
	return dayCount, nil
}