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autonginx

@@ -6,43 +6,79 @@ URL:  url à laquelle le service sera accessible (exemple.urlab.be)
 IP:   adresse ip locale du service (127.0.0.1 si sur cette machine, 172.23.100.X sinon)
 PORT: port utilisé par le service (entre 1 et 65535; certains ports sont déjà utilisés)"
 
-error(){
-	echo "$USAGE"
+error() {
+	echo "$@"
 	exit 1
 }
 
-sanitize()
-{
+sanitize() {
 	if ! [ "$PORT" -eq "$PORT" ] 2> /dev/null; then
-        error
+        error "$USAGE"
 	fi
-	if 1 "<" PORT ">" 65535 ; then
-		error
+	if [ "$PORT" -lt 1 ] || [ "$PORT" -gt 65535 ]; then
+		error "$USAGE"
 	fi
+	case "$URL" in
+		*.urlab.be) SUBDOMAIN=${URL%.urlab.be} ;;
+		*) error "$USAGE";;
+	esac
+	if [ "$SUBDOMAIN" = "" ]; then
+		error "$USAGE"
+	fi
+	if [ "$(expr "$SUBDOMAIN" : '[A-Za-z0-9][A-Za-z0-9\-]\{0,61\}[A-Za-z0-9]\{0,1\}')" != "${#SUBDOMAIN}" ]; then
+		error "$USAGE"
+	fi
+	if [ "$IP" != "127.0.0.1" ]; then
+		case "$IP" in
+			127.0.0.1) ;;
+			172.23.100.[0-9]*) 
+				LAST=${IP#172.23.100.}
+				if [ "$LAST" -lt 2 ] || [ "$LAST" -gt 254 ]; then
+					error "$USAGE"
+				fi ;;
+			*) error "$USAGE";;
+		esac
+	fi
+	echo "looks good"
 }
 
-if [ $# != 3 ]; then
-	error
-fi
+verify() {
+	if ! ping -c 1 -W 1 "$IP" >/dev/null 2>/dev/null ; then
+		error "Error : Cannot reach host $IP"
+	fi
+	if ! timeout 1 sh -c "(echo > /dev/tcp/$IP/$PORT) >/dev/null 2>&1"; then
+		error "Error : Port $PORT isn't open"
+	fi
+	echo "is good"
+}
 
-URL="$1"
-IP="$2"
-PORT="$3"
+main() {
+	if [ $# != 3 ]; then
+		error "$USAGE"
+	fi
 
-sanitize
+	URL="$1"
+	IP="$2"
+	PORT="$3"
+	NGINX="server {
+       listen 80;
+       listen [::]:80;
 
-echo "$URL"
-echo "$IP"
-echo "$PORT"
-# sanitize input 
-# 	port entre 1 et 65535
-# 	url de la forme *.urlab.be
-# 	ip soit 127.0.0.1 soit 172.23.100.X, X entre 2 et 254
-# verifier input
-# 	ping ip
-# 	check si port utilisé
-#
-#
-# generate config, put it in right location
-# generate ssl certificate
+       server_name $URL;
+
+       location / {
+		   proxy_pass http://$IP:$PORT/;
+		   include proxy_params;
+       }
+}"
+
+	sanitize
+	verify
+	echo "$NGINX"
+	# generate config, put it in right location
+	# verify nginx config (nginx -t)
+	# generate ssl certificate
+}
+
+main "$@"