feat: rework entire repo structure

sshd-login.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+PROJECT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+readonly PROJECT_DIR 2>/dev/null
+
+source $PROJECT_DIR/utils.sh
+
+INSTALLED=$1
+if [[ "--install" == $INSTALLED ]]; then
+	log_info "sshd-login Installation"
+
+	login="session optional pam_exec.so $PROJECT_DIR/sshd-login.sh"
+	file='/etc/pam.d/common-session'
+
+	if [[ ! -f "$file" ]]; then
+		log_error "$file doesn't found."
+		exit 1
+	fi
+
+	if ! grep -Fxq "$login" "$file"; then
+		echo "$login" >>"$file"
+		log_success "login command added to $file."
+	else
+		log_warn "login command already added to $file." $WARN_FLAG
+	fi
+	exit 0
+fi
+
+case "$PAM_TYPE" in
+open_session)
+	PAYLOAD=$(printf "<b>🚨 Login Event 🚨</b>\nUser <code>%s</code> logged in from <code>%s</code> at <i>%s</i>." "$PAM_USER" "$PAM_RHOST" "$(date)")
+	;;
+close_session)
+	PAYLOAD=$(printf "<b>🚨 Logout Event 🚨</b>\nUser <code>%s</code> logged out from <code>%s</code> at <i>%s</i>." "$PAM_USER" "$PAM_RHOST" "$(date)")
+	;;
+esac
+
+if [ -n "$PAYLOAD" ]; then
+	send_notification "$PAYLOAD"
+fi