From d2e4bf2f35d216f46b9b2820fa248260545c5047 Mon Sep 17 00:00:00 2001
From: DIVISIONSolar <me@joshsevero.dev>
Date: Fri, 18 Aug 2023 18:58:05 -0400
Subject: [PATCH] make it so the cron doesn't spam you

---
 README.md                                 | 95 +----------------------
 email/README.md                           | 94 ++++++++++++++++++++++
 {scripts => email/scripts}/critlowbatt.sh | 23 +++++-
 {scripts => email/scripts}/lowbatt.sh     | 25 +++++-
 {scripts => email/scripts}/onbatt.sh      |  0
 webhook/scripts/critlowbatt.sh            | 65 ++++++++++++++++
 webhook/scripts/lowbatt.sh                | 65 ++++++++++++++++
 webhook/scripts/onbatt.sh                 | 31 ++++++++
 8 files changed, 297 insertions(+), 101 deletions(-)
 create mode 100644 email/README.md
 rename {scripts => email/scripts}/critlowbatt.sh (57%)
 rename {scripts => email/scripts}/lowbatt.sh (56%)
 rename {scripts => email/scripts}/onbatt.sh (100%)
 create mode 100644 webhook/scripts/critlowbatt.sh
 create mode 100644 webhook/scripts/lowbatt.sh
 create mode 100644 webhook/scripts/onbatt.sh

diff --git a/README.md b/README.md
index 54a2561..341fb67 100644
--- a/README.md
+++ b/README.md
@@ -1,94 +1 @@
-# These are automated notification scripts for the APC UPS
-
-### Steps to setup are here: https://www.pontikis.net/blog/apc-ups-on-ubuntu-workstation
-
-
-
-# How to setup
-
-1. Install `sudo apt-get install ssmtp`
-2. Enter your SMTP creds: `nano /etc/ssmtp/ssmtp.conf`
-
-```
-root=changeme@example.com
-mailhub=smtp.example.com:587
-AuthUser=your_username
-AuthPass=your_password
-UseTLS=YES # OR UseSTARTTLS=YES
-
-```
-3. Go to `/etc/apcupsd/` and edit the onbattery file. `nano /etc/apcupsd/onbattery`
-
-it should look something like this:
-
-```
-#!/bin/sh
-#
-# This shell script if placed in /etc/apcupsd
-# will be called by /etc/apcupsd/apccontrol when the UPS
-# goes on batteries.
-# We send an email message to root to notify him.
-#
-
-HOSTNAME=`hostname`
-MSG="$HOSTNAME UPS $1 Power Failure !!!"
-#
-(
-   echo "$MSG"
-   echo " "
-   /sbin/apcaccess status
-) | $APCUPSD_MAIL -s "$MSG" $SYSADMIN
-exit 0
-
-```
-
-you'll want yours to look like this:
-
-```
-#!/bin/sh
-#
-# This shell script if placed in /etc/apcupsd
-# will be called by /etc/apcupsd/apccontrol when the UPS
-# goes on batteries.
-# We send an email message to root to notify him.
-#
-
-HOSTNAME=`hostname`
-MSG="$HOSTNAME UPS $1 Power Failure !!!"
-#
-(
-   echo "$MSG"
-   echo " "
-   /sbin/apcaccess status
-) | $APCUPSD_MAIL -s "$MSG" $SYSADMIN
-./etc/apcupsd/scripts/onbatt.sh
-exit 0
-
-```
-
-4. Run these commands: `cd /etc/apcupsd/ && mkdir scripts && nano onbatt.sh`
-
-then fill the `onbatt.sh` file with the contents from this github repo
-
-5. Run these commands to grant permissions to the script and run it: `chmod +x ./onbatt.sh && ./onbatt.sh` and it should run some commands and send you the email! (it'll only send the email if the UPS has no power!)
-
-# Setting up the battery alerts
-
-1. Run these commands `nano /etc/apcupsd/scripts/lowbatt.sh` and fill it with the desired contents (do the same with the /etc/apcupsd/scripts/critlowbatt.sh).
-2. Make sure to grant the right perms for the scripts: `chmod +x /etc/apcupsd/scripts/lowbatt.sh && chmod +x /etc/apcupsd/scripts/critlowbatt.sh`
-3. Run this: `crontab -e` and scroll all the way to the bottom and paste these lines:
-
-```
-*/1 * * * * /bin/bash /etc/apcupsd/scripts/lowbatt.sh
-*/1 * * * * /bin/bash /etc/apcupsd/scripts/critlowbatt.sh
-
-```
-and then `systemctl restart cron`
-
-this will save the crontab file and start running the crons.
-
-Want to change how often they run?
-
-Go to: https://crontab.cronhub.io/
-
-## If you need any help feel free to email me: `me@joshsevero.dev`
+# For info on how to setup and such click on the method you want. (email or discord webhook)
\ No newline at end of file
diff --git a/email/README.md b/email/README.md
new file mode 100644
index 0000000..c281af7
--- /dev/null
+++ b/email/README.md
@@ -0,0 +1,94 @@
+# These are automated notification scripts for the APC UPS
+
+### Steps to setup are here: https://www.pontikis.net/blog/apc-ups-on-ubuntu-workstation
+
+
+
+# How to setup
+
+1. Install `sudo apt-get install ssmtp`
+2. Enter your SMTP creds: `nano /etc/ssmtp/ssmtp.conf`
+
+```
+root=changeme@example.com
+mailhub=smtp.example.com:587
+AuthUser=your_username
+AuthPass=your_password
+UseTLS=YES # OR UseSTARTTLS=YES
+
+```
+3. Go to `/etc/apcupsd/` and edit the onbattery file. `nano /etc/apcupsd/onbattery`
+
+it should look something like this:
+
+```
+#!/bin/sh
+#
+# This shell script if placed in /etc/apcupsd
+# will be called by /etc/apcupsd/apccontrol when the UPS
+# goes on batteries.
+# We send an email message to root to notify him.
+#
+
+HOSTNAME=`hostname`
+MSG="$HOSTNAME UPS $1 Power Failure !!!"
+#
+(
+   echo "$MSG"
+   echo " "
+   /sbin/apcaccess status
+) | $APCUPSD_MAIL -s "$MSG" $SYSADMIN
+exit 0
+
+```
+
+you'll want yours to look like this:
+
+```
+#!/bin/sh
+#
+# This shell script if placed in /etc/apcupsd
+# will be called by /etc/apcupsd/apccontrol when the UPS
+# goes on batteries.
+# We send an email message to root to notify him.
+#
+
+HOSTNAME=`hostname`
+MSG="$HOSTNAME UPS $1 Power Failure !!!"
+#
+(
+   echo "$MSG"
+   echo " "
+   /sbin/apcaccess status
+) | $APCUPSD_MAIL -s "$MSG" $SYSADMIN
+./etc/apcupsd/scripts/onbatt.sh
+exit 0
+
+```
+
+4. Run these commands: `cd /etc/apcupsd/ && mkdir scripts && nano onbatt.sh`
+
+then fill the `onbatt.sh` file with the contents from this github repo
+
+5. Run these commands to grant permissions to the script and run it: `chmod +x ./onbatt.sh && ./onbatt.sh` and it should run some commands and send you the email! (it'll only send the email if the UPS has no power!)
+
+# Setting up the battery alerts
+
+1. Run these commands `nano /etc/apcupsd/scripts/lowbatt.sh` and fill it with the desired contents (do the same with the /etc/apcupsd/scripts/critlowbatt.sh).
+2. Make sure to grant the right perms for the scripts: `chmod +x /etc/apcupsd/scripts/lowbatt.sh && chmod +x /etc/apcupsd/scripts/critlowbatt.sh`
+3. Run this: `crontab -e` and scroll all the way to the bottom and paste these lines:
+
+```
+*/1 * * * * /bin/bash /etc/apcupsd/scripts/lowbatt.sh
+*/1 * * * * /bin/bash /etc/apcupsd/scripts/critlowbatt.sh
+
+```
+and then `systemctl restart cron`
+
+this will save the crontab file and start running the crons.
+
+Want to change how often they run?
+
+Go to: https://crontab.cronhub.io/
+
+## If you need any help feel free to email me: `me@joshsevero.dev`
diff --git a/scripts/critlowbatt.sh b/email/scripts/critlowbatt.sh
similarity index 57%
rename from scripts/critlowbatt.sh
rename to email/scripts/critlowbatt.sh
index 230e3d8..f90507f 100644
--- a/scripts/critlowbatt.sh
+++ b/email/scripts/critlowbatt.sh
@@ -4,6 +4,7 @@
 EMAIL_TO=""
 EMAIL_SUBJECT="UPS Battery Critically Low"
 SENDER_ADDRESS=""
+TIMESTAMP_FILE="/tmp/last_email_sent_timestamp_critically_low"
 
 # Check the UPS battery percentage using the apcaccess command
 battery_percentage=$(apcaccess status 2>/dev/null | awk '/BCHARGE/ {print $3}')
@@ -11,8 +12,21 @@ battery_percentage=$(apcaccess status 2>/dev/null | awk '/BCHARGE/ {print $3}')
 # Define the threshold as a floating-point number
 threshold=30.0
 
+# Get the current timestamp
+current_timestamp=$(date +%s)
+
+# Read the last email sent timestamp from the file (if it exists)
+if [ -f "$TIMESTAMP_FILE" ]; then
+    last_email_timestamp=$(cat "$TIMESTAMP_FILE")
+else
+    last_email_timestamp=0
+fi
+
+# Calculate the time elapsed since the last email
+time_elapsed=$((current_timestamp - last_email_timestamp))
+
 # Compare battery percentage with the threshold using bc
-if (( $(echo "$battery_percentage <= $threshold" | bc -l) )); then
+if (( $(echo "$battery_percentage <= $threshold" | bc -l) )) && [ "$time_elapsed" -ge 1800 ]; then
     echo "UPS battery is at or below $threshold%. Sending email alert."
 
     # Get estimated remaining runtime
@@ -28,6 +42,9 @@ if (( $(echo "$battery_percentage <= $threshold" | bc -l) )); then
         echo "Current Level: $battery_percentage%"
         echo "Estimated time remaining: $remaining_runtime"
     } | ssmtp -vvv $EMAIL_TO
+
+    # Update the last email sent timestamp
+    echo "$current_timestamp" > "$TIMESTAMP_FILE"
 else
-    echo "UPS battery is above $threshold%. No action needed."
-fi
\ No newline at end of file
+    echo "UPS battery is above $threshold% or email was sent recently. No action needed."
+fi
diff --git a/scripts/lowbatt.sh b/email/scripts/lowbatt.sh
similarity index 56%
rename from scripts/lowbatt.sh
rename to email/scripts/lowbatt.sh
index d12d717..96663b2 100644
--- a/scripts/lowbatt.sh
+++ b/email/scripts/lowbatt.sh
@@ -3,7 +3,8 @@
 # Replace these variables with your actual values
 EMAIL_TO=""
 EMAIL_SUBJECT="UPS Battery Low"
-SENDER_ADDRESS=""  
+SENDER_ADDRESS=""
+TIMESTAMP_FILE="/tmp/last_email_sent_timestamp"
 
 # Check the UPS battery percentage using the apcaccess command
 battery_percentage=$(apcaccess status 2>/dev/null | awk '/BCHARGE/ {print $3}')
@@ -11,8 +12,21 @@ battery_percentage=$(apcaccess status 2>/dev/null | awk '/BCHARGE/ {print $3}')
 # Define the threshold as a floating-point number
 threshold=75.0
 
+# Get the current timestamp
+current_timestamp=$(date +%s)
+
+# Read the last email sent timestamp from the file (if it exists)
+if [ -f "$TIMESTAMP_FILE" ]; then
+    last_email_timestamp=$(cat "$TIMESTAMP_FILE")
+else
+    last_email_timestamp=0
+fi
+
+# Calculate the time elapsed since the last email
+time_elapsed=$((current_timestamp - last_email_timestamp))
+
 # Compare battery percentage with the threshold using bc
-if (( $(echo "$battery_percentage <= $threshold" | bc -l) )); then
+if (( $(echo "$battery_percentage <= $threshold" | bc -l) )) && [ "$time_elapsed" -ge 1800 ]; then
     echo "UPS battery is at or below $threshold%. Sending email alert."
 
     # Get estimated remaining runtime
@@ -28,6 +42,9 @@ if (( $(echo "$battery_percentage <= $threshold" | bc -l) )); then
         echo "Current Level: $battery_percentage%"
         echo "Estimated time remaining: $remaining_runtime"
     } | ssmtp -vvv $EMAIL_TO
+
+    # Update the last email sent timestamp
+    echo "$current_timestamp" > "$TIMESTAMP_FILE"
 else
-    echo "UPS battery is above $threshold%. No action needed."
-fi
\ No newline at end of file
+    echo "UPS battery is above $threshold% or email was sent recently. No action needed."
+fi
diff --git a/scripts/onbatt.sh b/email/scripts/onbatt.sh
similarity index 100%
rename from scripts/onbatt.sh
rename to email/scripts/onbatt.sh
diff --git a/webhook/scripts/critlowbatt.sh b/webhook/scripts/critlowbatt.sh
new file mode 100644
index 0000000..4f60ad7
--- /dev/null
+++ b/webhook/scripts/critlowbatt.sh
@@ -0,0 +1,65 @@
+#!/bin/bash
+
+# Replace this with your actual Discord webhook URL
+DISCORD_WEBHOOK_URL="YOUR_DISCORD_WEBHOOK_URL"
+
+# Replace these variables with your actual values
+TIMESTAMP_FILE="/tmp/last_message_sent_timestamp_critically_low"
+
+# Check the UPS battery percentage using the apcaccess command
+battery_percentage=$(apcaccess status 2>/dev/null | awk '/BCHARGE/ {print $3}')
+
+# Define the threshold as a floating-point number
+threshold=30.0
+
+# Get the current timestamp
+current_timestamp=$(date +%s)
+
+# Read the last message sent timestamp from the file (if it exists)
+if [ -f "$TIMESTAMP_FILE" ]; then
+    last_message_timestamp=$(cat "$TIMESTAMP_FILE")
+else
+    last_message_timestamp=0
+fi
+
+# Calculate the time elapsed since the last message
+time_elapsed=$((current_timestamp - last_message_timestamp))
+
+# Compare battery percentage with the threshold using bc
+if (( $(echo "$battery_percentage <= $threshold" | bc -l) )) && [ "$time_elapsed" -ge 1800 ]; then
+    echo "UPS battery is at or below $threshold%. Sending message to Discord."
+
+    # Get estimated remaining runtime
+    remaining_runtime=$(apcaccess status 2>/dev/null | awk '/TIMELEFT/ {print $3}')
+
+    # Prepare the JSON payload for the embedded message in Discord
+    discord_payload='{
+        "embeds": [
+            {
+                "title": "Critical UPS Battery Alert",
+                "description": "UPS battery is critically low at or below '"$threshold"'%",
+                "color": 16711680,
+                "fields": [
+                    {
+                        "name": "Current Level",
+                        "value": "'"$battery_percentage"'%",
+                        "inline": true
+                    },
+                    {
+                        "name": "Estimated Time Remaining",
+                        "value": "'"$remaining_runtime"'",
+                        "inline": true
+                    }
+                ]
+            }
+        ]
+    }'
+
+    # Send embedded message to Discord using curl
+    curl -H "Content-Type: application/json" -d "$discord_payload" "$DISCORD_WEBHOOK_URL"
+
+    # Update the last message sent timestamp
+    echo "$current_timestamp" > "$TIMESTAMP_FILE"
+else
+    echo "UPS battery is above $threshold% or message was sent recently. No action needed."
+fi
diff --git a/webhook/scripts/lowbatt.sh b/webhook/scripts/lowbatt.sh
new file mode 100644
index 0000000..099e751
--- /dev/null
+++ b/webhook/scripts/lowbatt.sh
@@ -0,0 +1,65 @@
+#!/bin/bash
+
+# Replace this with your actual Discord webhook URL
+DISCORD_WEBHOOK_URL="YOUR_DISCORD_WEBHOOK_URL"
+
+# Replace these variables with your actual values
+TIMESTAMP_FILE="/tmp/last_message_sent_timestamp"
+
+# Check the UPS battery percentage using the apcaccess command
+battery_percentage=$(apcaccess status 2>/dev/null | awk '/BCHARGE/ {print $3}')
+
+# Define the threshold as a floating-point number
+threshold=75.0
+
+# Get the current timestamp
+current_timestamp=$(date +%s)
+
+# Read the last message sent timestamp from the file (if it exists)
+if [ -f "$TIMESTAMP_FILE" ]; then
+    last_message_timestamp=$(cat "$TIMESTAMP_FILE")
+else
+    last_message_timestamp=0
+fi
+
+# Calculate the time elapsed since the last message
+time_elapsed=$((current_timestamp - last_message_timestamp))
+
+# Compare battery percentage with the threshold using bc
+if (( $(echo "$battery_percentage <= $threshold" | bc -l) )) && [ "$time_elapsed" -ge 1800 ]; then
+    echo "UPS battery is at or below $threshold%. Sending message to Discord."
+
+    # Get estimated remaining runtime
+    remaining_runtime=$(apcaccess status 2>/dev/null | awk '/TIMELEFT/ {print $3}')
+
+    # Prepare the JSON payload for the embedded message in Discord
+    discord_payload='{
+        "embeds": [
+            {
+                "title": "UPS Battery Alert",
+                "description": "UPS battery is at or below '"$threshold"'%",
+                "color": 16711680,
+                "fields": [
+                    {
+                        "name": "Current Level",
+                        "value": "'"$battery_percentage"'%",
+                        "inline": true
+                    },
+                    {
+                        "name": "Estimated Time Remaining",
+                        "value": "'"$remaining_runtime"'",
+                        "inline": true
+                    }
+                ]
+            }
+        ]
+    }'
+
+    # Send embedded message to Discord using curl
+    curl -H "Content-Type: application/json" -d "$discord_payload" "$DISCORD_WEBHOOK_URL"
+
+    # Update the last message sent timestamp
+    echo "$current_timestamp" > "$TIMESTAMP_FILE"
+else
+    echo "UPS battery is above $threshold% or message was sent recently. No action needed."
+fi
diff --git a/webhook/scripts/onbatt.sh b/webhook/scripts/onbatt.sh
new file mode 100644
index 0000000..d1f72d7
--- /dev/null
+++ b/webhook/scripts/onbatt.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+
+# Replace these variables with your actual values
+DISCORD_WEBHOOK_URL=""
+
+# Function to send a Discord webhook message
+send_discord_webhook() {
+    local messages=("$@")
+    local message_data=""
+    
+    for message in "${messages[@]}"; do
+        message_data+="[$message] \n"
+    done
+    
+    curl -X POST -H "Content-Type: application/json" -d "{\"embeds\":[{\"title\":\"APC UPS Alert\",\"description\":\"$message_data\",\"color\":16711680}]}" $DISCORD_WEBHOOK_URL
+}
+
+# Check the UPS status using the apcaccess command
+status=$(apcaccess status 2>/dev/null | grep STATUS | awk '{print $3}')
+
+# Check if UPS is offline and send a single Discord webhook message if necessary
+if [ "$status" != "ONLINE" ]; then
+    echo "APC UPS is offline. Sending Discord webhook notification."
+
+    # Send a single webhook message with multiple lines
+    send_discord_webhook \
+        "Power Outage Detected." \
+        "NA-PA-01 UPS is offline. Please check the status."
+else
+    echo "APC UPS is online."
+fi