[locations] Support CIDR notion (start field), tweak templates a bit

1 files changed, 66 insertions, 0 deletions

diff --git a/modules-available/locations/clientscript.js b/modules-available/locations/clientscript.js
new file mode 100644
index 00000000..ad3e6c43
--- /dev/null
+++ b/modules-available/locations/clientscript.js
@@ -0,0 +1,66 @@
+function ip2long(IP) {
+	var i = 0;
+	IP = IP.match(/^([1-9]\d*|0[0-7]*|0x[\da-f]+)(?:\.([1-9]\d*|0[0-7]*|0x[\da-f]+))?(?:\.([1-9]\d*|0[0-7]*|0x[\da-f]+))?(?:\.([1-9]\d*|0[0-7]*|0x[\da-f]+))?$/i);
+	if (!IP) {
+		return false;
+	}
+	IP.push(0, 0, 0, 0);
+	for (i = 1; i < 5; i += 1) {
+		IP[i] = parseInt(IP[i]) || 0;
+		if (IP[i] < 0 || IP[i] > 255)
+			return false;
+	}
+	return IP[1] * 16777216 + IP[2] * 65536 + IP[3] * 256 + IP[4] * 1;
+}
+
+function long2ip(a) {
+	return [
+		a >>> 24,
+		255 & a >>> 16,
+		255 & a >>> 8,
+		255 & a
+	].join('.');
+}
+
+function cidrToRange(cidr) {
+	var range = [2];
+	cidr = cidr.split('/');
+	var cidr_1 = parseInt(cidr[1]);
+	if (cidr_1 <= 0 || cidr_1 > 32)
+		return false;
+	var param = ip2long(cidr[0]);
+	if (param === false)
+		return false;
+	range[0] = long2ip((param) & ((-1 << (32 - cidr_1))));
+	var start = ip2long(range[0]);
+	range[1] = long2ip(start + Math.pow(2, (32 - cidr_1)) - 1);
+	return range;
+}
+
+/**
+ * Add listener to start IP input; when it loses focus, see if we have a
+ * CIDR notation and fill out start+end field.
+ */
+function slxAttachCidr() {
+	$('.cidrmagic').each(function () {
+		var t = $(this);
+		var s = t.find('input.cidrstart');
+		var e = t.find('input.cidrend');
+		if (!s || !e)
+			return;
+		t.removeClass('cidrmagic');
+		s.focusout(function () {
+			var val = s.val();
+			if (val.match(/^[0-9]+\.[0-9]+(\.[0-9]+(\.[0-9]+)?)?\/[0-9]{2}$/)) {
+				var res = cidrToRange(val);
+				if (res === false)
+					return;
+				s.val(res[0]);
+				e.val(res[1]);
+			}
+		});
+	});
+}
+
+// Attach
+slxAttachCidr();
\ No newline at end of file