diff -r d77891f8915d -r 344470c6bb1c www/dbfermenters.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/www/dbfermenters.php	Wed Apr 24 16:46:45 2024 +0200
@@ -0,0 +1,163 @@
+<?php
+
+
+function open_socket()
+{
+    $sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
+
+    if (!($sock === false)) {
+        if (socket_connect($sock, "localhost", 6554)) {
+            socket_set_option($sock, SOL_SOCKET, SO_RCVTIMEO, array('sec' => 15, 'usec' => 0));
+        } else {
+            socket_close($sock);
+        }
+    }
+    return $sock;
+}
+
+
+/**
+ * @param string $command to send to the server.
+ * @return string with the complete reply from the
+ *         server. This can be a multiline reply.
+ */
+function send_cmd($command)
+{
+    $sock = open_socket();
+    if ($sock == false) {
+        return "";
+    }
+    socket_write($sock, $command . "\r\n", 4096);
+
+    $answer = "";
+    while (1) {
+        $line = socket_read($sock, 4096);
+        if ($line === '')
+            break;
+        $answer .= $line;
+    }
+    socket_close($sock);
+
+    return $answer;
+}
+
+
+function startsWith($haystack, $needle)
+{
+    return !strncmp($haystack, $needle, strlen($needle));
+}
+
+
+$response = array(
+   'error' => false,
+   'msg' => 'Ok',
+);
+
+
+if (isset($_POST['update'])) {
+
+    $cmd  = "UNIT PUT " . $_POST['uuid'] . "\r\n";
+    if (isset($_POST['air_address'])) {
+	$cmd .= "AIR_ADDRESS," . $_POST['air_address'] . "\r\n";
+	$cmd .= "AIR_IDX," . $_POST['air_idx'] . "\r\n";
+    }
+    if (isset($_POST['beer_address'])) {
+	$cmd .= "BEER_ADDRESS," . $_POST['beer_address'] . "\r\n";
+	if (isset($_POST['beer_address2']))
+	    $cmd .= "BEER_ADDRESS2," . $_POST['beer_address2'] . "\r\n";
+        $cmd .= "BEER_IDX," . $_POST['beer_idx'] . "\r\n";
+    }
+    if (isset($_POST['chiller_address'])) {
+	$cmd .= "CHILLER_ADDRESS," . $_POST['chiller_address'] . "\r\n";
+        $cmd .= "CHILLER_IDX," . $_POST['chiller_idx'] . "\r\n";
+    }
+    if (isset($_POST['heater_address'])) {
+	$cmd .= "HEATER_ADDRESS," . $_POST['heater_address'] . "\r\n";
+	$cmd .= "HEATER_STATE," . $_POST['heater_state'] . "\r\n";
+	$cmd .= "HEATER_DELAY," . $_POST['heater_delay'] . "\r\n";
+        $cmd .= "HEATER_IDX," . $_POST['heater_idx'] . "\r\n";
+    }
+    if (isset($_POST['cooler_address'])) {
+        $cmd .= "COOLER_ADDRESS," . $_POST['cooler_address'] . "\r\n";
+        $cmd .= "COOLER_STATE," . $_POST['cooler_state'] . "\r\n";
+        $cmd .= "COOLER_DELAY," . $_POST['cooler_delay'] . "\r\n";
+        $cmd .= "COOLER_IDX," . $_POST['cooler_idx'] . "\r\n";
+    }
+    if (isset($_POST['fan_address'])) {
+        $cmd .= "FAN_ADDRESS," . $_POST['fan_address'] . "\r\n";
+        $cmd .= "FAN_STATE," . $_POST['fan_state'] . "\r\n";
+        $cmd .= "FAN_DELAY," . $_POST['fan_delay'] . "\r\n";
+        $cmd .= "FAN_IDX," . $_POST['fan_idx'] . "\r\n";
+    }
+    if (isset($_POST['light_address'])) {
+        $cmd .= "LIGHT_ADDRESS," . $_POST['light_address'] . "\r\n";
+        $cmd .= "LIGHT_STATE," . $_POST['light_state'] . "\r\n";
+        $cmd .= "LIGHT_DELAY," . $_POST['light_delay'] . "\r\n";
+        $cmd .= "LIGHT_IDX," . $_POST['light_idx'] . "\r\n";
+    }
+    if (isset($_POST['door_address'])) {
+        $cmd .= "DOOR_ADDRESS," . $_POST['door_address'] . "\r\n";
+        $cmd .= "DOOR_IDX," . $_POST['door_idx'] . "\r\n";
+    }
+    if (isset($_POST['psu_address'])) {
+        $cmd .= "PSU_ADDRESS," . $_POST['psu_address'] . "\r\n";
+        $cmd .= "PSU_IDX," . $_POST['psu_idx'] . "\r\n";
+    }
+    $cmd .= "STAGE," . $_POST['stage'] . "\r\n";
+    $cmd .= "MODE," . $_POST['mode'] . "\r\n";
+    $cmd .= "PIDC_IMAX," . $_POST['pidc_imax'] . "\r\n";
+    $cmd .= "PIDC_PGAIN," . $_POST['pidc_pgain'] . "\r\n";
+    $cmd .= "PIDC_IGAIN," . $_POST['pidc_igain'] . "\r\n";
+    $cmd .= "PIDC_DGAIN," . $_POST['pidc_dgain'] . "\r\n";
+    $cmd .= "PIDC_IDLERANGE," . $_POST['pidc_idlerange'] . "\r\n";
+    $cmd .= "PIDH_IMAX," . $_POST['pidh_imax'] . "\r\n";
+    $cmd .= "PIDH_PGAIN," . $_POST['pidh_pgain'] . "\r\n";
+    $cmd .= "PIDH_IGAIN," . $_POST['pidh_igain'] . "\r\n";
+    $cmd .= "PIDH_DGAIN," . $_POST['pidh_dgain'] . "\r\n";
+    $cmd .= "PIDH_IDLERANGE," . $_POST['pidh_idlerange'] . "\r\n";
+    $cmd .= "TEMP_SET_MIN," . $_POST['temp_set_min'] . "\r\n";
+    $cmd .= "TEMP_SET_MAX," . $_POST['temp_set_max'] . "\r\n";
+    $cmd .= ".";
+    $answer = send_cmd($cmd);
+    $arr = explode("\r\n", $answer);
+    if (! startsWith($arr[0], "219")) {
+	$response['error'] = true;
+	$response['msg'] = $arr[0];
+    }
+    exit(json_encode($response));
+
+} else if (isset($_POST['add'])) {
+
+    // Name is not used and is generated.
+    $answer = send_cmd("UNIT ADD " . $_POST['name']);
+    $arr = explode("\r\n", $answer);
+    if (! startsWith($arr[0], "211")) {
+	$response['error'] = true;
+	$response['msg'] = $arr[0];
+    }
+    exit(json_encode($response));
+
+} else if (isset($_POST['del'])) {
+
+    $answer = send_cmd("UNIT DEL " . $_POST['uuid']);
+    $arr = explode("\r\n", $answer);
+    if (! startsWith($arr[0], "211")) {
+        $response['error'] = true;
+        $response['msg'] = $arr[0];
+    }
+    exit(json_encode($response));
+
+} else {
+
+    $answer = send_cmd("UNIT JSON");
+    header("Content-type: application/json");
+
+    $arr = explode("\r\n", $answer);
+    if (startsWith($arr[0], "212")) {
+    	echo $arr[1];
+    } else {
+        echo '{}';
+    }
+}
+
+?>