refactor email send functions, integrate check_nodes in mini-beieli-web

This commit is contained in:
Joerg Lehmann 2022-07-20 17:49:07 +02:00
parent 1feb6961bd
commit 681005f10e
8 changed files with 245 additions and 435 deletions

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@ -1,399 +0,0 @@
package main
import (
"bufio"
"bytes"
"fmt"
"github.com/gomodule/redigo/redis"
"github.com/jordan-wright/email"
"io/ioutil"
"log"
"net/http"
"os"
"strconv"
"strings"
"time"
)
func sendEmailAccu(username string, alias string, deveui string, accu_percent string, threshold int, level string) {
fmt.Printf("SEND EMAIL ACCU (%s) - %s:%s\n", level, username, deveui)
mail_message := `Lieber Benutzer von mini-beieli.ch
Der Akku von "` + alias + `" (DevEUI: ` + deveui + `) ist noch zu ` + accu_percent + ` Prozent geladen.
Bitte rechtzeitig wieder laden! Bei 10%-er Ladung erscheint die letzte Warnung.
Mit freundlichen Grüssen
--
mini-beieli.ch`
e := email.NewEmail()
e.From = "mini-beieli.ch <info@mini-beieli.ch>"
e.To = []string{username}
e.Bcc = []string{"joerg.lehmann@nbit.ch"}
e.Subject = level + " - mini-beieli.ch: Akku Ladezustand (" + alias + ")"
e.Text = []byte(mail_message)
e.Send("127.0.0.1:25", nil)
}
func sendEmailAbo(username string, alias string, deveui string, days_left int, level string) {
fmt.Printf("SEND EMAIL ABO (%s) - %s:%s\n", level, username, deveui)
mail_message := `Lieber Benutzer von mini-beieli.ch
Das Abo von "` + alias + `" (DevEUI: ` + deveui + `) laeuft in ` + strconv.Itoa(days_left) + ` Tagen ab.
Bitte Abo verlaengern auf https://mini-beieli.ch
Mit freundlichen Grüssen
--
mini-beieli.ch`
e := email.NewEmail()
e.From = "mini-beieli.ch <info@mini-beieli.ch>"
e.To = []string{username}
e.Bcc = []string{"joerg.lehmann@nbit.ch"}
e.Subject = level + " - mini-beieli.ch: Abo laeuft ab (" + alias + ")"
e.Text = []byte(mail_message)
e.Send("127.0.0.1:25", nil)
}
var globalPool *redis.Pool
const userPrefix string = "user:"
const devPrefix string = "dev:"
const confirmPrefix string = "confirm:"
func newPool() *redis.Pool {
return &redis.Pool{
// Maximum number of idle connections in the pool.
MaxIdle: 80,
// max number of connections
MaxActive: 12000,
// Dial is an application supplied function for creating and
// configuring a connection.
Dial: func() (redis.Conn, error) {
c, err := redis.Dial("tcp", ":6379")
if err != nil {
panic(err.Error())
}
return c, err
},
}
}
// ping tests connectivity for redis (PONG should be returned)
func ping(c redis.Conn) error {
// Send PING command to Redis
// PING command returns a Redis "Simple String"
// Use redis.String to convert the interface type to string
s, err := redis.String(c.Do("PING"))
if err != nil {
return err
}
logit("PING Response = " + s)
// Output: PONG
return nil
}
type Dev struct {
Deveui string
Alias string
Alarmactive string
Smsnumber string
ActiveUntil string // Abo bezahlt bis TT.MM.YYYY
}
func initDB() {
// newPool returns a pointer to a redis.Pool
pool := newPool()
// get a connection from the globalPool (redis.Conn)
conn := pool.Get()
defer conn.Close()
globalPool = pool
// wir machen einen Connection Test
ping(conn)
}
func closeDB() {
globalPool.Close()
}
func getUsers() []string {
res := []string{}
conn := globalPool.Get()
defer conn.Close()
//logit("getUsers")
users, err := redis.Strings(conn.Do("KEYS", userPrefix+"*"))
if err == nil {
//logit("getUsers successful!")
res = users
} else {
log.Print(err)
}
return res
}
func getMyDevs(username string) []string {
res := []string{}
if username == "" {
return res
}
conn := globalPool.Get()
defer conn.Close()
//logit("getMyDevs: User: " + username)
mydevs, err := redis.String(conn.Do("HGET", userPrefix+username, "my_devs"))
if err == nil {
//logit("getMyDevs: mydevs: " + mydevs)
res = strings.Split(mydevs, ",")
} else {
log.Print(err)
}
return res
}
func getDevAlias(deveui string) string {
res := deveui
if deveui == "" {
return res
}
conn := globalPool.Get()
defer conn.Close()
//logit("getDevAlias: Deveui: " + deveui)
alias, err := redis.String(conn.Do("HGET", devPrefix+deveui, "alias"))
if err == nil {
//logit("getDevAlias: alias: " + alias)
res = alias
} else {
log.Print(err)
}
return res
}
func getActiveUntil(deveui string) string {
res := ""
if deveui == "" {
return res
}
conn := globalPool.Get()
defer conn.Close()
//logit("getActiveUntil: Deveui: " + deveui)
activeuntil, err := redis.String(conn.Do("HGET", devPrefix+deveui, "active_until"))
if err == nil {
//logit("getActiveUntil: activeuntil: " + activeuntil)
res = activeuntil
} else {
log.Print(err)
}
return res
}
func InsertAlert(prefix string, deveui string, email string, threshold int) {
conn := globalPool.Get()
defer conn.Close()
_, err := conn.Do("SET", prefix+deveui+":"+email, threshold)
if err != nil {
logit("InsertAlert: Error inserting: " + prefix + deveui + ":" + email)
}
}
func DeleteAlert(prefix string, deveui string, email string) {
conn := globalPool.Get()
defer conn.Close()
exists, _ := redis.Bool(conn.Do("EXISTS", prefix+deveui+":"+email))
if exists {
_, err := conn.Do("DEL", prefix+deveui+":"+email)
if err != nil {
logit("DeleteAlert: Error deleting: " + prefix + deveui + ":" + email)
}
}
}
func AlarmNotAlreadySent(prefix string, deveui string, email string, threshold int) bool {
conn := globalPool.Get()
defer conn.Close()
exists, _ := redis.Bool(conn.Do("EXISTS", prefix+deveui+":"+email))
if !exists {
return true
}
alarm_threshold, _ := redis.Int(conn.Do("GET", prefix+deveui+":"+email))
return threshold != alarm_threshold
}
type OneMetric struct {
Deveui string
Alias string
Timestamp string
BatteryPercent string
ActiveUntil string
DaysUntilDeactivated int // berechneter Wert
}
func CalcDaysUntil(mydate string) int {
var days int
layout := "02.01.2006"
t, err := time.Parse(layout, mydate)
if err != nil {
days = 0
}
days = int(t.Sub(time.Now()).Hours() / 24)
return days
}
func getLastMetrics(deveui string) OneMetric {
var res OneMetric
url := "http://localhost:8086/api/v2/query?org=minibeieliorg"
data := []byte(fmt.Sprintf(`from(bucket:"minibeielibucket")
|> range(start:-5d)
|> filter(fn: (r) => r._measurement == "measurement" and r.deveui == "%s")
|> filter(fn: (r) => r._field == "vp")
|> last(column: "_time") |> yield(name: "last")`, deveui))
req, err := http.NewRequest("POST", url, bytes.NewBuffer(data))
if err != nil {
log.Fatal("Error reading request. ", err)
}
// Set headers
var INFLUX_RO_TOKEN = os.Getenv("INFLUX_RO_TOKEN")
// Set headers
req.Header.Set("Authorization", "Token "+INFLUX_RO_TOKEN)
req.Header.Set("accept", "application/csv")
req.Header.Set("content-type", "application/vnd.flux")
// Set client timeout
client := &http.Client{Timeout: time.Second * 10}
// Send request
resp, err := client.Do(req)
if err != nil {
log.Fatal("Error reading response. ", err)
}
defer resp.Body.Close()
//fmt.Println("response Status:", resp.Status)
//fmt.Println("response Headers:", resp.Header)
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
log.Fatal("Error reading body. ", err)
}
//fmt.Println("response Body:", string(body))
scanner := bufio.NewScanner(strings.NewReader(string(body)))
location, err := time.LoadLocation("Europe/Zurich")
for scanner.Scan() {
s := strings.Split(scanner.Text(), ",")
if (len(s) >= 7) && !(strings.HasPrefix(s[5], "_")) {
mytime, err := time.Parse(time.RFC3339, s[5])
if err != nil {
continue
}
res.Timestamp = mytime.In(location).Format("02.01.2006 15:04")
value := s[6]
field := s[7]
if field == "vp" {
res.BatteryPercent = value
}
}
}
res.Deveui = deveui
res.Alias = getDevAlias(deveui)
res.ActiveUntil = getActiveUntil(deveui)
res.DaysUntilDeactivated = CalcDaysUntil(res.ActiveUntil)
return res
}
func CheckThreshold(d string, vp int, u2 string, last_metric OneMetric, info_threshold int, warning_threshold int, alert_threshold int) bool {
var alias string
if vp <= info_threshold {
alias = getDevAlias(d)
}
if vp <= alert_threshold {
if AlarmNotAlreadySent("alarm_sent_accu:", d, u2, alert_threshold) {
sendEmailAccu(u2, alias, d, last_metric.BatteryPercent, alert_threshold, "ALARM")
InsertAlert("alarm_sent_accu:", d, u2, alert_threshold)
}
return false
}
if vp <= warning_threshold {
if AlarmNotAlreadySent("alarm_sent_accu:", d, u2, warning_threshold) {
sendEmailAccu(u2, alias, d, last_metric.BatteryPercent, warning_threshold, "WARNING")
InsertAlert("alarm_sent_accu:", d, u2, warning_threshold)
}
return false
}
if vp <= info_threshold {
if AlarmNotAlreadySent("alarm_sent_accu:", d, u2, info_threshold) {
sendEmailAccu(u2, alias, d, last_metric.BatteryPercent, alert_threshold, "INFO")
InsertAlert("alarm_sent_accu:", d, u2, info_threshold)
}
return false
}
return true
}
func logit(log_message string) {
log.Println(log_message)
}
func main() {
logit("Starting check_battery...")
initDB()
defer closeDB()
users := getUsers()
for _, u := range users {
//fmt.Println(u)
u2 := u[5:]
my_devs := getMyDevs(u2)
for _, d := range my_devs {
//fmt.Printf("%s:%s\n", u2, d)
if !strings.HasPrefix(d, "@") {
last_metric := getLastMetrics(d)
// Zuerst der Batteriealarm
if last_metric.BatteryPercent != "" {
fmt.Printf("%s:%s:%s Percent:%s:%d\n", u2, d, last_metric.BatteryPercent, last_metric.ActiveUntil, last_metric.DaysUntilDeactivated)
vp, _ := strconv.Atoi(last_metric.BatteryPercent)
if CheckThreshold(d, vp, u2, last_metric, 50, 20, 10) {
DeleteAlert("alarm_sent_accu:", d, u2)
}
}
// Jetzt der Alarm wegen der Abodauer
if last_metric.DaysUntilDeactivated < 30 {
fmt.Printf("SEND EMAIL %s:%s:%s Percent:%s:%d\n", u2, d, last_metric.BatteryPercent, last_metric.ActiveUntil, last_metric.DaysUntilDeactivated)
alias := getDevAlias(d)
sendEmailAbo("joerg.lehmann@nbit.ch", alias, d, last_metric.DaysUntilDeactivated, "INFO")
}
}
}
}
logit("Done with check_battery...")
}

130
check_nodes.go Normal file
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@ -0,0 +1,130 @@
package main
import (
"fmt"
"net/http"
"strconv"
"strings"
)
func sendEmailAccu(username string, alias string, deveui string, accu_percent string, threshold int, level string) {
fmt.Printf("SEND EMAIL ACCU (%s) - %s:%s\n", level, username, deveui)
mail_message := "To: " + username + `
From: info@mini-beieli.ch
Subject: ` + level + ` - mini-beieli.ch: Akku Ladezustand (` + alias + `)
Lieber Benutzer von mini-beieli.ch
Der Akku von "` + alias + `" (DevEUI: ` + deveui + `) ist noch zu ` + accu_percent + ` Prozent geladen.
Bitte rechtzeitig wieder laden! Bei Unterschreitung von 5% Ladung erscheint die letzte Warnung.
Mit freundlichen Grüssen
--
mini-beieli.ch`
sendEmail(username, "mail@mini-beieli.ch", mail_message)
}
func sendEmailAbo(username string, alias string, deveui string, days_left int, level string) {
var ablauftext string
if days_left == 0 {
fmt.Printf("SEND EMAIL ABO (%s) - %s:%s\n", level, username, deveui)
ablauftext = "Das Abo von \"" + alias + "\" (DevEUI: " + deveui + ") ist abgelaufen."
} else if days_left > 0 {
fmt.Printf("SEND EMAIL ABO (%s) - %s:%s\n", level, username, deveui)
ablauftext = "Das Abo von \"" + alias + "\" (DevEUI: " + deveui + ") laeuft in " + strconv.Itoa(days_left) + " Tagen ab."
} else {
fmt.Printf("DO NOT SEND EMAIL ABO (%s) - %s:%s\n", level, username, deveui)
return
}
mail_message := "To: " + username + `
From: info@mini-beieli.ch
Subject: ` + level + ` - mini-beieli.ch: Abo verlaengern (` + alias + `)
Lieber Benutzer von mini-beieli.ch
` + ablauftext + `
Bitte Abo verlaengern auf https://mini-beieli.ch
Mit freundlichen Grüssen
--
mini-beieli.ch`
sendEmail(username, "mail@mini-beieli.ch", mail_message)
}
func CheckThreshold(d string, vp int, u2 string, last_metric OneMetric, info_threshold int, warning_threshold int, alert_threshold int) bool {
var alias string
if vp <= info_threshold {
alias = getDevAlias(d)
}
if vp <= alert_threshold {
if AlarmNotAlreadySent("alarm_sent_accu:", d, u2, alert_threshold) {
sendEmailAccu(u2, alias, d, last_metric.BatteryPercent, alert_threshold, "ALARM")
InsertAlert("alarm_sent_accu:", d, u2, alert_threshold)
}
return false
}
if vp <= warning_threshold {
if AlarmNotAlreadySent("alarm_sent_accu:", d, u2, warning_threshold) {
sendEmailAccu(u2, alias, d, last_metric.BatteryPercent, warning_threshold, "WARNING")
InsertAlert("alarm_sent_accu:", d, u2, warning_threshold)
}
return false
}
if vp <= info_threshold {
if AlarmNotAlreadySent("alarm_sent_accu:", d, u2, info_threshold) {
sendEmailAccu(u2, alias, d, last_metric.BatteryPercent, alert_threshold, "INFO")
InsertAlert("alarm_sent_accu:", d, u2, info_threshold)
}
return false
}
return true
}
func checkNodes() {
logit("Starting check_battery...")
users := getUsers()
for _, u := range users {
//fmt.Println(u)
u2 := u[5:]
my_devs := getMyDevs(u2)
for _, d := range my_devs {
fmt.Printf("%s:%s\n", u2, d)
if !strings.HasPrefix(d, "@") {
last_metric := getLastMetrics(d)
// Zuerst der Batteriealarm
if last_metric.BatteryPercent != "" {
fmt.Printf("%s:%s:%s Percent:%s:%d\n", u2, d, last_metric.BatteryPercent, last_metric.ActiveUntil, last_metric.DaysUntilDeactivated)
vp, _ := strconv.Atoi(last_metric.BatteryPercent)
if CheckThreshold(d, vp, u2, last_metric, 20, 10, 5) {
DeleteAlert("alarm_sent_accu:", d, u2)
}
}
// Jetzt der Alarm wegen der Abodauer
if last_metric.DaysUntilDeactivated < 30 {
fmt.Printf("SEND EMAIL %s:%s:%s Percent:%s:%d\n", u2, d, last_metric.BatteryPercent, last_metric.ActiveUntil, last_metric.DaysUntilDeactivated)
alias := getDevAlias(d)
sendEmailAbo(u2, alias, d, last_metric.DaysUntilDeactivated, "INFO")
}
}
}
}
logit("Done with check_battery...")
}
func checkNodesHandler(w http.ResponseWriter, req *http.Request) {
headers := req.Header
val, ok := headers["X-Checknodes"]
if ok {
fmt.Printf("X-Checknodes header is present with value %s\n", val)
checkNodes()
} else {
fmt.Println("X-Checknodes header is not present")
}
w.WriteHeader(http.StatusOK)
}

11
go.mod Normal file
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@ -0,0 +1,11 @@
module nbit.ch/mini-beieli-web/v2
go 1.17
require (
github.com/gomodule/redigo v1.8.9
github.com/gorilla/securecookie v1.1.1
github.com/jordan-wright/email v4.0.1-0.20210109023952-943e75fe5223+incompatible
github.com/stripe/stripe-go v70.15.0+incompatible
golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d
)

29
go.sum Normal file
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@ -0,0 +1,29 @@
github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/gomodule/redigo v1.8.9 h1:Sl3u+2BI/kk+VEatbj0scLdrFhjPmbxOc1myhDP41ws=
github.com/gomodule/redigo v1.8.9/go.mod h1:7ArFNvsTjH8GMMzB4uy1snslv2BwmginuMs06a1uzZE=
github.com/gorilla/securecookie v1.1.1 h1:miw7JPhV+b/lAHSXz4qd/nN9jRiAFV5FwjeKyCS8BvQ=
github.com/gorilla/securecookie v1.1.1/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+HVt/4epWDjd4=
github.com/jordan-wright/email v4.0.1-0.20210109023952-943e75fe5223+incompatible h1:jdpOPRN1zP63Td1hDQbZW73xKmzDvZHzVdNYxhnTMDA=
github.com/jordan-wright/email v4.0.1-0.20210109023952-943e75fe5223+incompatible/go.mod h1:1c7szIrayyPPB/987hsnvNzLushdWf4o/79s3P08L8A=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stripe/stripe-go v70.15.0+incompatible h1:hNML7M1zx8RgtepEMlxyu/FpVPrP7KZm1gPFQquJQvM=
github.com/stripe/stripe-go v70.15.0+incompatible/go.mod h1:A1dQZmO/QypXmsL0T8axYZkSN/uA/T/A64pfKdBAMiY=
golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d h1:sK3txAijHtOK88l68nt020reeT1ZdKLIYetKl95FzVY=
golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2 h1:CIJ76btIcR3eFI5EgSo6k1qKw9KJexJuRLI9G7Hp5wE=
golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

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@ -2,6 +2,7 @@ package main
import (
"log"
"os"
)
// Contains tells whether a contains x.
@ -18,3 +19,11 @@ func Contains(a []string, x string) bool {
}
return false
}
func getenv(key, fallback string) string {
value := os.Getenv(key)
if len(value) == 0 {
return fallback
}
return value
}

63
mail.go
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@ -1,27 +1,39 @@
package main
import (
"bytes"
"log"
"net/smtp"
)
func sendEmail(username, confirm_id string) {
c, err := smtp.Dial("127.0.0.1:25")
func sendEmail(mail_to, mail_default_authuser, mail_message string) {
var auth smtp.Auth
if getenv("MAILSERVER_USER", "") != "" {
// Set up authentication information.
auth = smtp.PlainAuth(
"",
getenv("MAILSERVER_USER", ""),
getenv("MAILSERVER_PASSWORD", ""),
getenv("MAILSERVER_HOST", "127.0.0.1"),
)
}
// Connect to the server, authenticate, set the sender and recipient,
// and send the email all in one step.
err := smtp.SendMail(
getenv("MAILSERVER_HOST", "127.0.0.1")+":"+getenv("MAILSERVER_PORT", "25"),
auth,
getenv("MAILSERVER_USER", mail_default_authuser),
[]string{mail_to, "info@mini-beieli.ch"},
[]byte(mail_message),
)
if err != nil {
log.Fatal(err)
}
defer c.Close()
// Set the sender and recipient.
c.Mail("register@mini-beieli.ch")
c.Rcpt(username)
// Send the email body.
wc, err := c.Data()
if err != nil {
log.Fatal(err)
}
defer wc.Close()
}
func sendEmailConfirm(username, confirm_id string) {
mail_message := "To: " + username + `
From: register@mini-beieli.ch
Subject: Passwortaenderung auf https://mini-beieli.ch, bitte bestaetigen
Lieber Benutzer von mini-beieli.ch
@ -37,28 +49,12 @@ Mit freundlichen Grüssen
--
mini-beieli.ch`
buf := bytes.NewBufferString(mail_message)
if _, err = buf.WriteTo(wc); err != nil {
log.Fatal(err)
}
sendEmail(username, "mail@mini-beieli.ch", mail_message)
}
func sendPaymentConfirmationEmail(username, charge_data string, amount int64) {
c, err := smtp.Dial("127.0.0.1:25")
if err != nil {
log.Fatal(err)
}
defer c.Close()
// Set the sender and recipient.
c.Mail("info@mini-beieli.ch")
c.Rcpt(username)
// Send the email body.
wc, err := c.Data()
if err != nil {
log.Fatal(err)
}
defer wc.Close()
mail_message := "To: " + username + `
From: info@mini-beieli.ch
Subject: Zahlungsbestaetigung mini-beieli.ch
Lieber Benutzer von mini-beieli.ch
@ -71,8 +67,5 @@ Mit freundlichen Grüssen
--
mini-beieli.ch`
buf := bytes.NewBufferString(mail_message)
if _, err = buf.WriteTo(wc); err != nil {
log.Fatal(err)
}
sendEmail(username, "mail@mini-beieli.ch", mail_message)
}

View File

@ -99,6 +99,7 @@ func main() {
http.HandleFunc("/save_scale_settings", save_scale_settingsHandler)
http.HandleFunc("/getstripepaymentintent", getstripepaymentintentHandler)
http.HandleFunc("/stripewebhook", stripeWebhookHandler)
http.HandleFunc("/checknodes", checkNodesHandler)
logit("Starting Web Application...")
http.ListenAndServe("127.0.0.1:4000", nil)

View File

@ -385,7 +385,7 @@ func updateUser(username, password string) {
return
}
sendEmail(username, confirm_id)
sendEmailConfirm(username, confirm_id)
}
func checkLoginCredentials(username, password string) bool {
@ -454,3 +454,39 @@ func confirmUser(confirm_id string) bool {
return true
}
func InsertAlert(prefix string, deveui string, email string, threshold int) {
conn := globalPool.Get()
defer conn.Close()
_, err := conn.Do("SET", prefix+deveui+":"+email, threshold)
if err != nil {
logit("InsertAlert: Error inserting: " + prefix + deveui + ":" + email)
}
}
func DeleteAlert(prefix string, deveui string, email string) {
conn := globalPool.Get()
defer conn.Close()
exists, _ := redis.Bool(conn.Do("EXISTS", prefix+deveui+":"+email))
if exists {
_, err := conn.Do("DEL", prefix+deveui+":"+email)
if err != nil {
logit("DeleteAlert: Error deleting: " + prefix + deveui + ":" + email)
}
}
}
func AlarmNotAlreadySent(prefix string, deveui string, email string, threshold int) bool {
conn := globalPool.Get()
defer conn.Close()
exists, _ := redis.Bool(conn.Do("EXISTS", prefix+deveui+":"+email))
if !exists {
return true
}
alarm_threshold, _ := redis.Int(conn.Do("GET", prefix+deveui+":"+email))
return threshold != alarm_threshold
}