From 642b1bb105cda6e7f631010927160e49dca5a02f Mon Sep 17 00:00:00 2001
From: Pavel Muhortov <pavel.muhortov@hmp.today>
Date: Sun, 24 Dec 2023 15:15:03 +0300
Subject: [PATCH] info about reboot extended

---
 templates/sendmail-reboot.sh     | 133 ++++++++++++++++++++++++-------
 templates/sendtelegram-reboot.sh |  75 ++++++++++++++++-
 2 files changed, 176 insertions(+), 32 deletions(-)

diff --git a/templates/sendmail-reboot.sh b/templates/sendmail-reboot.sh
index 97eca9f..f06c064 100644
--- a/templates/sendmail-reboot.sh
+++ b/templates/sendmail-reboot.sh
@@ -2,43 +2,116 @@
 # chkconfig: 2345 20 80
 
 ### BEGIN INIT INFO
-# Provides:		sendmail-reboot
-# Required-Start:	$all
-# Required-Stop:	
-# Default-Start:	2 3 4 5
-# Default-Stop:		
-# Short-Description:	Sending a message on startup
+# Provides:          sendmail-reboot
+# Required-Start:    $all
+# Required-Stop:
+# Default-Start:     2 3 4 5
+# Default-Stop:
+# Short-Description: Sending a message on startup
 ### END INIT INFO
 
 start() {
-    sleep 30
-    python3 /usr/local/bin/sendmail.py \
-        --smtp "$(cat /usr/local/bin/sendmail.config | grep "smtp=" | cut -d= -f2)" \
-        -u "$(cat /usr/local/bin/sendmail.config | grep "from=" | cut -d= -f2)" \
-        -p "$(cat /usr/local/bin/sendmail.config | grep "pass=" | cut -d= -f2)" \
-        -d "$(cat /usr/local/bin/sendmail.config | grep "dest=" | cut -d= -f2)" \
-        --subj "[System States] $(cat /etc/hostname): computer has been rebooted" \
-        --text "$(w)" \
-    >> /dev/null 2>&1 &
+  TXT_MSG="[System States] $(cat /etc/hostname): OS has been rebooted"
+
+REL=$(grep 'PRETTY_NAME' /etc/os-release | cut -d= -f2)
+if [ -n "${REL}" ]; then
+TXT_MSG=$(cat <<-END
+${TXT_MSG}
+
+--- RELEASE:
+${REL}
+END
+)
+fi
+
+KER=$(uname -srm)
+if [ -n "${KER}" ]; then
+TXT_MSG=$(cat <<-END
+${TXT_MSG}
+
+--- KERNEL:
+${KER}
+END
+)
+fi
+
+NET=$(ip a | grep 'inet' | grep -v -e '127.0.0.1/8' -e '::1/128' \
+    | awk '{print $2}')
+if [ -n "${NET}" ]; then
+TXT_MSG=$(cat <<-END
+${TXT_MSG}
+
+--- NETWORK:
+${NET}
+END
+)
+fi
+
+CPU=$(grep 'model name' /proc/cpuinfo | cut -d':' -f2- | cut -d' ' -f2-)
+if [ -n "${CPU}" ]; then
+TXT_MSG=$(cat <<-END
+${TXT_MSG}
+
+--- CPUs:
+${CPU}
+END
+)
+fi
+
+MEM=$(grep /proc/meminfo \
+    -e 'MemTotal' -e 'MemAvailable' -e 'MemFree' \
+    -e 'SwapTotal' -e 'SwapFree' \
+    | numfmt --field 2 --from-unit=Ki --to=iec | sed 's/ kB//g')
+if [ -n "${MEM}" ]; then
+TXT_MSG=$(cat <<-END
+${TXT_MSG}
+
+--- MEMORY:
+${MEM}
+END
+)
+fi
+
+DRI=$(LC_ALL=en_US.UTF-8 df -h --output=source,fstype,size,pcent,target \
+    -x tmpfs -x devtmpfs -x squashfs)
+if [ -n "${DRI}" ]; then
+TXT_MSG=$(cat <<-END
+${TXT_MSG}
+
+--- DRIVES:
+${DRI}
+END
+)
+fi
+
+  sleep 15
+  python3 /usr/local/bin/sendmail.py \
+    --smtp "$(grep "smtp=" /usr/local/bin/sendmail.config | cut -d= -f2)" \
+    -u "$(grep "from=" /usr/local/bin/sendmail.config | cut -d= -f2)" \
+    -p "$(grep "pass=" /usr/local/bin/sendmail.config | cut -d= -f2)" \
+    -d "$(grep "dest=" /usr/local/bin/sendmail.config | cut -d= -f2)" \
+    --subj "[System States] $(cat /etc/hostname): OS has been rebooted" \
+    --text "${TXT_MSG}" \
+  >> /dev/null 2>&1 &
 }
 
 stop() {
-    pkill -f /usr/local/bin/sendmail.py
+  pkill -f /usr/local/bin/sendmail.py
 }
 
-case "$1" in 
-    start)
-       start
-       ;;
-    stop)
-       stop
-       ;;
-    restart)
-       stop
-       start
-       ;;
-    *)
-       echo "Usage: $0 {start|stop|restart}"
+case "$1" in
+  start)
+    start
+    ;;
+  stop)
+    stop
+    ;;
+  restart)
+    stop
+    start
+    ;;
+  *)
+  printf "%s\n" "Usage: $0 {start|stop|restart}"
 esac
 
-exit 0
\ No newline at end of file
+exit 0
diff --git a/templates/sendtelegram-reboot.sh b/templates/sendtelegram-reboot.sh
index 7437d67..5c424a4 100644
--- a/templates/sendtelegram-reboot.sh
+++ b/templates/sendtelegram-reboot.sh
@@ -15,7 +15,78 @@ start() {
   SILENCE="$(grep "SILENCE=" /usr/local/bin/sendtelegram.config | cut -d= -f2)"
   CHAT_ID="$(grep "CHAT_ID=" /usr/local/bin/sendtelegram.config | cut -d= -f2)"
   THRD_ID="$(grep "THRD_ID=" /usr/local/bin/sendtelegram.config | cut -d= -f2)"
-  TXT_MSG="[System States] $(cat /etc/hostname): computer has been rebooted"
+  TXT_MSG="[System States] $(cat /etc/hostname): OS has been rebooted"
+
+REL=$(grep 'PRETTY_NAME' /etc/os-release | cut -d= -f2)
+if [ -n "${REL}" ]; then
+TXT_MSG=$(cat <<-END
+${TXT_MSG}
+
+--- RELEASE:
+${REL}
+END
+)
+fi
+
+KER=$(uname -srm)
+if [ -n "${KER}" ]; then
+TXT_MSG=$(cat <<-END
+${TXT_MSG}
+
+--- KERNEL:
+${KER}
+END
+)
+fi
+
+NET=$(ip a | grep 'inet' | grep -v -e '127.0.0.1/8' -e '::1/128' \
+    | awk '{print $2}')
+if [ -n "${NET}" ]; then
+TXT_MSG=$(cat <<-END
+${TXT_MSG}
+
+--- NETWORK:
+${NET}
+END
+)
+fi
+
+CPU=$(grep 'model name' /proc/cpuinfo | cut -d':' -f2- | cut -d' ' -f2-)
+if [ -n "${CPU}" ]; then
+TXT_MSG=$(cat <<-END
+${TXT_MSG}
+
+--- CPUs:
+${CPU}
+END
+)
+fi
+
+MEM=$(grep /proc/meminfo \
+    -e 'MemTotal' -e 'MemAvailable' -e 'MemFree' \
+    -e 'SwapTotal' -e 'SwapFree' \
+    | numfmt --field 2 --from-unit=Ki --to=iec | sed 's/ kB//g')
+if [ -n "${MEM}" ]; then
+TXT_MSG=$(cat <<-END
+${TXT_MSG}
+
+--- MEMORY:
+${MEM}
+END
+)
+fi
+
+DRI=$(LC_ALL=en_US.UTF-8 df -h --output=source,fstype,size,pcent,target \
+    -x tmpfs -x devtmpfs -x squashfs)
+if [ -n "${DRI}" ]; then
+TXT_MSG=$(cat <<-END
+${TXT_MSG}
+
+--- DRIVES:
+${DRI}
+END
+)
+fi
 
   sleep 15
   if [ -z "${THRD_ID}" ]; then
@@ -35,7 +106,7 @@ start() {
 }
 
 stop() {
-  pkill -f curl -s -o /dev/null -X POST -d chat_id="${CHAT_ID}"
+  pkill -f "curl -s -o /dev/null -X POST -d chat_id=${CHAT_ID}"
 }
 
 case "$1" in