From 5b3352345c5475750c4754f179b685b6c083d906 Mon Sep 17 00:00:00 2001
From: Alexandre CATTEAU <alexandre.catteau@gmail.com>
Date: Fri, 19 Aug 2022 13:50:18 +0200
Subject: [PATCH] Initial commit

---
 .gitignore                         |  2 ++
 README.md                          | 16 ++++++++++++++++
 boot-sms.sh                        | 16 ++++++++++++++++
 install.sh                         | 28 ++++++++++++++++++++++++++++
 systemd-templates/boot-sms.service | 11 +++++++++++
 variables.conf.template            |  6 ++++++
 wait-reaching.sh                   |  5 +++++
 7 files changed, 84 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 README.md
 create mode 100755 boot-sms.sh
 create mode 100755 install.sh
 create mode 100644 systemd-templates/boot-sms.service
 create mode 100644 variables.conf.template
 create mode 100755 wait-reaching.sh

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..99a3140
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+variables.conf
+.disabled
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..a5fae9d
--- /dev/null
+++ b/README.md
@@ -0,0 +1,16 @@
+# Boot SMS
+
+This script uses Free Mobile SMS API to send an SMS informing admin of server reboot.
+
+### Files
+* `boot-sms.sh` is the main script.
+* `wait-reaching.sh` is used by main script to make sure API service is reachable (in practice, delay is the time
+  required by network to be up).
+* `variables.conf.template` contains examples variables definitions, and should be copied locally to `variables.conf`
+  (with any required modifications).
+* `systemd-templates/` contains a Systemd units template for running the script at boot.
+#### Installation
+* `install.sh` script copies the Systemd template to its destination, and enable the service.
+
+### TODO
+* RAS
diff --git a/boot-sms.sh b/boot-sms.sh
new file mode 100755
index 0000000..dbeeaaa
--- /dev/null
+++ b/boot-sms.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+source "$run_directory/variables.conf"
+
+# Set parameters here
+host=$(hostname -f)
+sysboot=$(who -b | sed 's/^[ \t]*//;s/[ \t]*$//')
+time=$(date "+%Y-%m-%d %H:%M:%S")
+msg="$host has rebooted. $sysboot If you did not initiate this, a power failure has probably occured. Message sent on $time."
+msg=$(echo $msg | sed -e "s/ /%20/g") # Replace spaces with %20 as we are in an URL
+
+# Actual process
+URL="https://smsapi.free-mobile.fr/sendmsg?user=$user&pass=$pass&msg=$msg"
+curl $URL
+
+exit 0
diff --git a/install.sh b/install.sh
new file mode 100755
index 0000000..c4d1b11
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+run_directory=$(dirname "$0")
+user=$(whoami)
+
+if [ -f $run_directory/.disabled ]; then
+  echo "Installation is disabled. Exiting..."
+  exit 0
+fi
+
+if [[ $user != 'root' ]]; then
+  sudo="sudo"
+else
+  sudo=""
+fi
+
+echo "Copying WebSSH unit to system directory..."
+$sudo cp systemd-templates/boot-sms.service /etc/systemd/system/
+$sudo sed -i -e "s:PH_DIRECTORY:$(pwd):g" /etc/systemd/system/boot-sms.service
+
+echo "Reloading Systemd..."
+$sudo systemctl daemon-reload
+
+echo "Enabling boot-sms.service..."
+$sudo systemctl enable boot-sms.service
+
+echo "Finished install. Exiting..."
+exit 0
diff --git a/systemd-templates/boot-sms.service b/systemd-templates/boot-sms.service
new file mode 100644
index 0000000..78ba29a
--- /dev/null
+++ b/systemd-templates/boot-sms.service
@@ -0,0 +1,11 @@
+[Unit]
+Description=Send an SMS at system boot
+After=network.target
+
+[Service]
+Type=oneshot
+ExecStartPre=/usr/bin/bash PH_DIRECTORY/wait-reaching.sh smsapi.free-mobile.fr
+ExecStart=PH_DIRECTORY/boot-sms.sh
+
+[Install]
+WantedBy=multi-user.target
diff --git a/variables.conf.template b/variables.conf.template
new file mode 100644
index 0000000..652d188
--- /dev/null
+++ b/variables.conf.template
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+# Copy this file as variables.conf, with the correct values
+
+user=''
+pass=''
diff --git a/wait-reaching.sh b/wait-reaching.sh
new file mode 100755
index 0000000..849ce90
--- /dev/null
+++ b/wait-reaching.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+until ping -c 1 $1 > /dev/null 2>&1; do
+  sleep 1;
+done