Telegram Notification

[chiragkrishna]

sharing a bash script to monitor stick parameters and to send a notification if it exceeds the limit

• change values in Set Warnings accordingly
• set your telegram details in Set Telegram
• add stick login details in LOGIN_URL

on your Linux server save the file e.g monitor.sh
make it executable

chmod +x monitor.sh

add a crontab to run every 5 minutes

crontab -e

5 * * * * /home/$LOGNAME/monitor.sh

monitor.sh

#!/bin/bash

# Set Warnings
TEMPS=50
VOLTS=4
TX=3
RX="-25"
BIAS=15

# Set Telegram 
BOT_TOKEN="TOKEN"
CHAT_ID="ID"

# Telegram send message
send_telegram_message() {
    message="$1"
    curl -s -X POST "https://api.telegram.org/bot$BOT_TOKEN/sendMessage" \
         -H 'Content-Type: application/json' \
         -d '{"chat_id":"'"$CHAT_ID"'", "text":"'"$message"'", "parse_mode": "html", "protect_content": true}' \
            >/dev/null 2>&1
}

# Router URL
LOGIN_URL="http://192.168.1.1/boaform/admin/formLogin?username=admin&password=XXXXX&save=Login&submit-url=%2Fadmin%2Flogin.asp"
STATUS_URL="http://192.168.1.1/status_pon.asp"

# Fetch the content of the status page using the authenticated session
curl -s "$LOGIN_URL" > /dev/null

# Fetch the content of the status page using the authenticated session
html_content=$(curl -s "$STATUS_URL")

# Define an array of the parameters you want to extract
parameters=("Temperature" "Voltage" "Tx Power" "Rx Power" "Bias Current")

# Loop through the parameters
for param in "${parameters[@]}"; do
  # Use grep to find the line with the parameter and then use sed to extract the value
  value=$(echo "$html_content" | grep -A1 "$param" | tail -n1 | sed -n 's/.*>\(.*\)<\/.*/\1/p')

  # Extract the numerical part of the value (including negative sign)
  numerical_value=$(echo $value | awk '{print $1}')

  # Extract the unit of the value
  unit=$(echo $value | awk '{print $2}')

  # Round off the value to 2 decimal points
  rounded_value=$(printf "%.2f" $numerical_value)

  # Add individual checks for each parameter
  if [ "$param" == "Temperature" ] && (( $(echo "$rounded_value > $TEMPS" | bc -l) )); then
    send_telegram_message "<b>**WARNING**</b> \n <b>$param:</b> $rounded_value $unit"
  elif [ "$param" == "Voltage" ] && (( $(echo "$rounded_value > $VOLTS" | bc -l) )); then
    send_telegram_message "<b>**WARNING**</b> \n <b>$param:</b> $rounded_value $unit"
  elif [ "$param" == "Tx Power" ] && (( $(echo "$rounded_value > $TX" | bc -l) )); then
    send_telegram_message "<b>**WARNING**</b> \n <b>$param:</b> $rounded_value $unit"
  elif [ "$param" == "Rx Power" ] && (( $(echo "$rounded_value < $RX" | bc -l) )); then
    send_telegram_message "<b>**WARNING**</b> \n <b>$param:</b> $rounded_value $unit"
  elif [ "$param" == "Bias Current" ] && (( $(echo "$rounded_value > $BIAS" | bc -l) )); then
    send_telegram_message "<b>**WARNING**</b> \n <b>$param:</b> $rounded_value $unit"
  fi
done

[Anime4000]

wow, this is purely on bash script!
I add this at README!