From 706e17b665190b9d8b67057d3f110ba28dffd026 Mon Sep 17 00:00:00 2001
From: lonkaars <loek@pipeframe.xyz>
Date: Tue, 14 Dec 2021 21:44:47 +0100
Subject: semi-working

---
 jatwisd | 114 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-----
 test.sh |   3 ++
 2 files changed, 108 insertions(+), 9 deletions(-)
 create mode 100755 test.sh

diff --git a/jatwisd b/jatwisd
index 71c2f40..b136c8d 100755
--- a/jatwisd
+++ b/jatwisd
@@ -1,5 +1,20 @@
 #!/bin/sh
 
+JATWIS_MODE=""
+JATWIS_LOCKFILE=""
+JATWIS_TIMEOUT=10000
+JATWIS_FREQUENCY=600
+JATWIS_FIRST_RUN=1
+
+JATWIS_SCRIPT_LOCATION=""
+JATWIS_URL=""
+
+function poll_default() {
+	echo "error: no poll handler for \"$JATWIS_MODE\", exiting..."
+	exit 1
+}
+JATWIS_POLL_FN=poll_default
+
 function usage() {
 	cat << EOF
 Usage: jatwisd [options]
@@ -13,32 +28,104 @@ Usage: jatwisd [options]
 	-s, --sftp <sftp url>
 		poll url using sftp
 
-	-e, --exec
+	-e, --exec <path>
 		script to run if the url is reachable
 
-	-t, --timeout
+	-t, --timeout <milliseconds>
 		timeout period (in milliseconds)
+		default: 10 seconds (10000)
 
-	-f, --freq, --frequency
-		polling frequency
+	-f, --freq, --frequency <seconds>
+		polling frequency (in seconds)
+		default: every 10 minutes (600)
 
-	-l, --lockfile
+	-l, --lockfile <path>
 		set lockfile location and enable lockfile checking
+	
+	-p, --no-protection
+		disable protection agains endpoint success on first run
 
 See jatwisd(1) for more info
 EOF
 }
 
+function check_ready() {
+	if [ -z "$JATWIS_URL" ]; then
+		echo "error: no endpoint to poll, exiting..."
+		exit 1
+	elif [ -z "$JATWIS_SCRIPT_LOCATION" ]; then
+		echo "error: no script or executable specified, exiting..."
+		exit 1
+	fi
+
+	if [ ! -f "$JATWIS_SCRIPT_LOCATION" ]; then
+		if [ ! -x "$JATWIS_SCRIPT_LOCATION" ]; then
+			echo "error: script or executable not executable, exiting..."
+			exit 1
+		fi
+		echo "error: script or executable not found, exiting..."
+		exit 1
+	fi
+
+	if [ "$JATWIS_MODE" == "HTTPS" ] && [[ "$JATWIS_URL" != https://* ]]; then
+		echo "error: https url without https:// protocol, exiting..."
+		exit 1
+	fi
+}
+
+function trigger() {
+	if [ $JATWIS_FIRST_RUN -eq 1 ]; then
+		echo "error: poll succeeded on first run, exiting..."
+		exit 1
+	fi
+
+	sh "$JATWIS_SCRIPT_LOCATION"
+}
+
+function poll_https() {
+	curl -s -o /dev/null -w "%{http_code}" "$JATWIS_URL"
+	trigger
+}
+
+# parse args
 while [ "$1" != "" ]; do
-	PARAM=`echo $1 | awk -F= '{print $1}'`
-	VALUE=`echo $1 | awk -F= '{print $2}'`
-	case $PARAM in
+	case $1 in
 		--help)
 			usage
 			exit
 			;;
+		-h|--https)
+			JATWIS_URL="$2"
+			JATWIS_MODE="HTTPS"
+			JATWIS_POLL_FN=poll_https
+			shift
+			;;
+		-s|--sftp)
+			JATWIS_URL="$2"
+			JATWIS_MODE="SFTP"
+			shift
+			;;
+		-e|--exec)
+			JATWIS_SCRIPT_LOCATION="$2"
+			shift
+			;;
+		-t|--timeout)
+			JATWIS_TIMEOUT="$2"
+			shift
+			;;
+		-f|--freq|--frequency)
+			JATWIS_FREQUENCY="$2"
+			shift
+			;;
+		-l|--lockfile)
+			JATWIS_LOCKFILE="$2"
+			shift
+			;;
+		-p|--no-protection)
+			JATWIS_FIRST_RUN=0
+			;;
 		*)
-			echo "ERROR: unknown parameter \"$PARAM\""
+			echo "unknown parameter \"$PARAM\""
 			usage
 			exit 1
 			;;
@@ -46,3 +133,12 @@ while [ "$1" != "" ]; do
 	shift
 done
 
+check_ready
+
+while :; do
+	$JATWIS_POLL_FN
+
+	JATWIS_FIRST_RUN=0
+	sleep "$JATWIS_FREQUENCY"
+done
+
diff --git a/test.sh b/test.sh
new file mode 100755
index 0000000..30307c1
--- /dev/null
+++ b/test.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+echo "this is an example script to test jatwisd"
-- 
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