From c952fc0ba78932df14eef9e502cd5b7bb6375666 Mon Sep 17 00:00:00 2001
From: Michael Gernoth <michael@gernoth.net>
Date: Thu, 31 Jan 2019 13:59:38 +0100
Subject: [PATCH] iotcore: use IoTcore POST-request instead of GET

---
 ifmdl-temperature.conf |  3 ++-
 upsgraph.pl            | 22 +++++++++++++++++++---
 2 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/ifmdl-temperature.conf b/ifmdl-temperature.conf
index 3f9dd94..3c0ef63 100644
--- a/ifmdl-temperature.conf
+++ b/ifmdl-temperature.conf
@@ -14,9 +14,10 @@ $hosts = [
 		'vars' => {
 			'TD2501' => {
 				'name' => 'TD2501',
-				'url' => 'http://10.133.0.9/iolinkmaster/port[1]/iolinkdevice/pdin/getdata',
+				'adr' => 'iolinkmaster/port[1]/iolinkdevice/pdin/getdata',
 				'proto' => 'iotcore',
 				'factor' => 1/10,
+				'mask' => 0xffff,
 			},
 		}
 	},
diff --git a/upsgraph.pl b/upsgraph.pl
index 55c6a62..f9d0fe3 100755
--- a/upsgraph.pl
+++ b/upsgraph.pl
@@ -189,12 +189,24 @@ sub fetch_tcp_multi(@) {
 }
 
 sub fetch_iotcore(@) {
-	my $url = shift;
+	my $host = shift;
+	my $adr = shift;
+	my $mask = shift;
 
 	my $ua = LWP::UserAgent->new;
 	$ua->timeout(1);
 
-	my $resp = $ua->get($url);
+	my $iotcore_req = {
+		cid => 1,
+		code => 10,
+		adr => $adr,
+	};
+
+	my $req = HTTP::Request->new(POST => "http://${host}");
+	$req->content_type('application/json');
+	$req->content(encode_json($iotcore_req));
+
+	my $resp = $ua->request($req);
 	return undef if (!$resp->is_success);
 
 	my $pdin = decode_json($resp->decoded_content);
@@ -202,6 +214,10 @@ sub fetch_iotcore(@) {
 
 	my $value = hex($pdin->{'data'}->{'value'});
 
+	if (defined($mask)) {
+		$value = $value & $mask;
+	}
+
 	$value;
 }
 
@@ -497,7 +513,7 @@ while(1) {
 					$result = $multi_values{$vars->{$var}->{'multi_id'}};
 				}
 			} elsif ($vars->{$var}->{'proto'} eq 'iotcore') {
-				$result = fetch_iotcore($vars->{$var}->{'url'});
+				$result = fetch_iotcore($host->{'address'}, $vars->{$var}->{'adr'}, $vars->{$var}->{'mask'});
 			}
 
 			next unless (defined $result);
-- 
2.39.2