Email notification on new connection

[coloxim]

Are you replacing these lines with your site specific arguments or are you using them as is;

FROM="your-gmail-address"
AUTH="your-gmail-username"
PASS="your-gmail-password"
FROMNAME="Your Router"
TO="your-email-address"

PASS is the google password for the account you are sending the email from, etc.

I mean no offence here, but I am getting the impression that your scripting skills/knowledge are not quite there. That's OK, we all start somewhere. It is just I don't think I am the right person to help at this point.

To your other question re the app statistics. I do not know where they are stored, or how so the quick answer is no.

Maybe.is my English the problem...i meat:

I the script which I posted i known where place username and password...

But I want to use yours, and there aren't the "variables" before the code..

 

[coloxim]

I just re-read your last email an noted that you said that the script works if you run it manually right? But not after a reboot?

The script is called /jffs/scripts/wan-event right?

If so, then it sure does sound like it is failing because the clock is not set. Don't forget too that wan-event gets called for other wan events than just connected. You are testing that the wan-event is "connected" before you try to email the status?

I don't know what you mean by a "report app usage"

sorry jeffy,
now seems work, but after reboot i receive 3 mails....mnnn

 

[Jeffrey Young]

Sorry @coloxim just seeing this now. Been busy with yard work today.

The wan-event gets called for various reasons. Unless you test $2 for "connected", you are going to get emails for every wan-event (init, starting, connected, etc. ).

That would be my guess why you are getting multiple emails.

Glad you got it figured out.

 

[coloxim]

Spiacenti, [USER = 76109] @coloxim [/ USER] ha visto questo messaggio. Oggi sono stato impegnato con il lavoro in giardino.

L'evento pallido viene richiamato per vari motivi. A meno che non provi $ 2 per "connesso", riceverai email per ogni evento wan (init, avvio, connessione, ecc.).

Questa sarebbe la mia ipotesi perché stai ricevendo più email.

Sono contento che tu abbia capito.

come può implementare $ 2 mio codice?

io'm non sicuri di fare un lavoro buono .....

i added also wan event in cru, so i can receive and email every day in evening so see the time of connection...

 

[Jeffrey Young]

If you look at https://github.com/RMerl/asuswrt-merlin.ng/wiki/User-scripts

You can see that Merlin passes two variables to wan-event. They are the interface (0 or 1) and the event being handled.

from inside the wan-event script, you can access those variables as $1 as the interface and the $2 as the event. If you look at my wan-event script, you see where I test $2 to see if it is equal to "connected". If it is, then I build my email body, then call another script that is my email code. I have a number if scripts that email me for various reasons, so my scripts builds the email body, then I call another script that actually does the email work.

Since you are also running your script via a cron job, you can call the wan-event script manually by entering "/jffs/scripts/wan-event 0 connected" to simulate how Merlin would call the script.

BTW, don't worry about doing a "good" job. If your script works and does what you want, then it's a "good" job. Sure, there is better ways to make code, fancy ways to make code, maybe more efficient ways to make code, but for me, a good code is one that works.

 

[coloxim]

In cron i call the script, i didn't out all script of course...anyway if I call manually the script i received only one mail, after reboot or if I disconnect that cable i receive 5 email... Ye, i read about $1 and $2... I've to understand how put inside the script..i read yours, everything seems a bit complicated... eheheh

Thanks for patience...

 

[Jeffrey Young]

Do a google search for "bash case statement" or "bash if statement" for examples. I use "case" in my script, but you can use the "if" statement

Here is an example site; https://linuxize.com/post/bash-case-statement/

 

[coloxim]

It's not easy, but I'll try....
Another question, in my script i receive an email with up time of system from last reboot. Is possible have also timeup of the connection? How can I find it?

 

[Jeffrey Young]

It's not easy, but I'll try....
Another question, in my script i receive an email with up time of system from last reboot. Is possible have also timeup of the connection? How can I find it?

Not any easy way that I can think of.

 

[coloxim]

Everything is so complicated...this a function must be set by default....

;(

 

[coloxim]

ok add $1 and $2 fro me is impossible....
anyway when i send command: ./wan-event 0 connnected or only ././wan-event i receive only one mail adn theoutpur is:


depth=2 OU = GlobalSign Root CA - R2, O = GlobalSign, CN = GlobalSign
verify return:1
depth=1 C = US, O = Google Trust Services, CN = GTS CA 1O1
verify return:1
depth=0 C = US, ST = California, L = Mountain View, O = Google LLC, CN = smtp.gmail.com
verify return:1
250 SMTPUTF8
read:errno=0



but if i reboot router the email as you said are 4/5...
better than nothing

 

[Jeffrey Young]

Ok, so using the script you posted in post 14, you would build your wan-event like this to test for connected state;

#!/bin/sh
FROM="your-gmail-address"
AUTH="your-gmail-username"
PASS="your-gmail-password"
FROMNAME="Your Router"
TO="your-email-address"

if [ $2 = "connected" ]
then

    ntpclient -h pool.ntp.org -s &> /dev/null
    sleep 5

    echo "Subject: WAN state notification" >/tmp/mail.txt
    echo "From: \"$FROMNAME\"<$FROM>" >>/tmp/mail.txt
    echo "Date: $(date -R)" >>/tmp/mail.txt
    echo "" >>/tmp/mail.txt
    echo "I just got connected to the internet." >>/tmp/mail.txt
    echo "" >>/tmp/mail.txt
    echo "My WAN IP is: $(nvram get wan0_ipaddr)" >>/tmp/mail.txt
    echo "Uptime is: $(uptime | cut -d ',' -f1 | sed 's/^.\{12\}//g')" >>/tmp/mail.txt
    echo "" >>/tmp/mail.txt
    echo "---- " >>/tmp/mail.txt
    echo "Your friendly router." >>/tmp/mail.txt
    echo "" >>/tmp/mail.txt

    cat /tmp/mail.txt | sendmail -H"exec openssl s_client -quiet \
    -CAfile /jffs/configs/google_root.pem \
    -connect smtp.gmail.com:587 -tls1 -starttls smtp" \
    -f"$FROM" \
    -au"$AUTH" -ap"$PASS" $TO

    rm /tmp/mail.txt

fi

 

[coloxim]

Ok, so using the script you posted in post 14, you would build your wan-event like this to test for connected state;

#!/bin/sh
FROM="your-gmail-address"
AUTH="your-gmail-username"
PASS="your-gmail-password"
FROMNAME="Your Router"
TO="your-email-address"

if [ $2 = "connected" ]
then

    ntpclient -h pool.ntp.org -s &> /dev/null
    sleep 5

    echo "Subject: WAN state notification" >/tmp/mail.txt
    echo "From: \"$FROMNAME\"<$FROM>" >>/tmp/mail.txt
    echo "Date: $(date -R)" >>/tmp/mail.txt
    echo "" >>/tmp/mail.txt
    echo "I just got connected to the internet." >>/tmp/mail.txt
    echo "" >>/tmp/mail.txt
    echo "My WAN IP is: $(nvram get wan0_ipaddr)" >>/tmp/mail.txt
    echo "Uptime is: $(uptime | cut -d ',' -f1 | sed 's/^.\{12\}//g')" >>/tmp/mail.txt
    echo "" >>/tmp/mail.txt
    echo "---- " >>/tmp/mail.txt
    echo "Your friendly router." >>/tmp/mail.txt
    echo "" >>/tmp/mail.txt

    cat /tmp/mail.txt | sendmail -H"exec openssl s_client -quiet \
    -CAfile /jffs/configs/google_root.pem \
    -connect smtp.gmail.com:587 -tls1 -starttls smtp" \
    -f"$FROM" \
    -au"$AUTH" -ap"$PASS" $TO

    rm /tmp/mail.txt

fi

Thanks! Tomorrow I'm at home and I'll try your script...i made something similar but I was thinking to declare $2 as variable...

Thanks¡ I'll tell you how it works!

 

[Jeffrey Young]

No need to declare $2 as a variable. It gets passed to the script from the command line. Thus, the command "wan-event 0 connected" passes "0" to the script as $1 and "connected" as $2.

 

[coloxim]

No need to declare $2 as a variable. It gets passed to the script from the command line. Thus, the command "wan-event 0 connected" passes "0" to the script as $1 and "connected" as $2.

Ok...thanks! I never programming...i just learned something Right now...this afternoon I'll test your script...
Thanks

 

[coloxim]

No need to declare $2 as a variable. It gets passed to the script from the command line. Thus, the command "wan-event 0 connected" passes "0" to the script as $1 and "connected" as $2.

Works perfectly!!!! It was so easy...i used "if"in wrong mode. Thank you so much!!!!
A big help!!!!

 

[Joyz]

Here is my wan-event script. It emails me when a connected state happens. Th smail script is another general purpose script I use to call when ever I need something mailed to me.

EDIT: The spoiler code really looks bad, changed to use just code instead

#!/bin/sh

# variables passed to wan-event
# $1 > Wan Adaptor
# $2 > Wan state
#        init
#        connecting
#        connected
#        disconnected
#        stopped
#        disabled
#        stopping

if ! [ -d "/jffs/wan" ]; then
    mkdir /jffs/wan
fi

case $2 in
    "disconnected")
        echo "" > /jffs/wan/disconnected.txt
        echo "Wan$1 Port reported disconnected on $(date)" >> /jffs/wan/disconnected.txt
        echo "" >> /jffs/wan/disconnected.txt
    ;;
    "connected")

        sleep 5

        T1="$(nvram get ntp_server0)"
        T2="$(nvram get ntp_server1)"

        C1="True"
        C2=0

        while [ "$C1" = "True" ]
        do
            if [ "$(nvram get ntp_ready)" = "1" ]; then

                IP=$(nvram get wan${1}_ipaddr)
                PUBLIC=$(wget -qO - http://ipecho.net/plain | xargs echo)

                if [ -e "/jffs/wan/disconnected.txt" ]; then
                    cat /jffs/wan/disconnected.txt > /jffs/wan/connected.txt
                    rm /jffs/wan/disconnected.txt
                else
                    echo "" > /jffs/wan/connected.txt
                    echo "There is no record of the last time WAN port become disconnected" >> /jffs/wan/connected.txt
                    echo "" >> /jffs/wan/connected.txt
                fi

                echo "Wan$1 Port reported connected at $(date)" >> /jffs/wan/connected.txt
                echo "" >> /jffs/wan/connected.txt
                echo "The Wan$1 Address is: $IP" >> /jffs/wan/connected.txt
                echo "The Public Address is: $PUBLIC" >> /jffs/wan/connected.txt
                echo "" >> /jffs/wan/connected.txt
                echo "Waited for $C2 loops for time to be synced" >> /jffs/wan/connected.txt
                echo "" >> /jffs/wan/connected.txt

                /jffs/addons/young/smail.sh /jffs/wan/connected.txt "AC86U Router Connected to the Internet"
                C1="False"
            else
                sleep 3
                let "C2=C2+1"

                if [ "$C2" -gt 10 ]; then
                    C1="False"
                    logger "wan-event - wan event script did not start - ntp server failed to respond"
                fi
            fi
        done

        # Start SoftEtherVPN Server
#        /jffs/addons/young/start_vpn_server

        /jffs/addons/young/wakedc.sh
     
        exit 0
    ;;
    esac

Need to install Entware for your script to work?
Something I can't understand how you send messages to yourself

 

[Jeffrey Young]

I don't believe so.

There was another post recently about emailing using Google that did not require the use of the certificate.

When I built this script, I tried using it without the certificate, but only half of the emails would go through. Very odd.

I am away from my computer for the next couple weeks (camping season). When I have something better than a phone, I will look up the post (if someone else does not).

 

[Jeffrey Young]

Something I can't understand how you send messages to yourself

Sorry, missed that part. I created a google account for my router, using an Google app password. The router than emails me from it's own account.

 

[Joyz]

And what are these files responsible for?
/jffs/addons/young/smail.sh
/jffs/addons/young/wakedc.sh
Initially, they are not in the router. And why is SoftEtherVPN in your script?