1 <html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-US">
3 <title>Location</title>
4 <!-- This uses reeeally old 2.13.1 from 2013, also part of Debian distro -->
5 <script src="http://www.openlayers.org/api/OpenLayers.js">
7 <script src="https://www.openstreetmap.org/openlayers/OpenStreetMap.js">
9 <script type="text/javascript">
10 const urlParams = new URLSearchParams(window.location.search);
11 const qimei = urlParams.get("imei");
13 const ourl = new URL(window.location);
14 const wsproto = ourl.protocol === "https" ? "wss" : "ws";
15 const wshost = ourl.hostname ? ourl.hostname : "localhost";
16 const wsport = ourl.port ? ourl.port : 5049;
18 const imeis = new Set();
19 const locations = new Array();
22 strokeColor: '#0000ff',
40 sts = document.getElementById("sts");
41 sts.innerHTML = "uninitialized";
42 imei = document.getElementById("imei");
43 send = document.getElementById("send");
44 clear = document.getElementById("clear");
45 subslist = document.getElementById("subslist");
46 devstatus = document.getElementById("devstatus");
47 tstamp = document.getElementById("tstamp");
55 map = new OpenLayers.Map ("map", {
57 new OpenLayers.Control.Navigation(),
58 new OpenLayers.Control.PanZoomBar(),
59 new OpenLayers.Control.LayerSwitcher(),
60 new OpenLayers.Control.Attribution()],
61 maxExtent: new OpenLayers.Bounds(
62 -20037508.34,-20037508.34,
63 20037508.34,20037508.34),
64 maxResolution: 156543.0399,
67 projection: new OpenLayers.Projection(
69 displayProjection: new OpenLayers.Projection(
73 new OpenLayers.Layer.OSM.Mapnik("Mapnik");
74 map.addLayer(layerMapnik)
76 new OpenLayers.Layer.OSM.TransportMap("TransportMap");
77 map.addLayer(layerTransportMap)
79 new OpenLayers.Layer.OSM.CycleMap("CycleMap");
80 map.addLayer(layerCycleMap);
82 new OpenLayers.Layer.Vector("Line Layer");
85 OpenLayers.Control.DrawFeature(line,
86 OpenLayers.Handler.Path));
88 new OpenLayers.Layer.Markers("Markers");
89 map.addLayer(markers);
91 var size = new OpenLayers.Size(21, 25);
92 var offset = new OpenLayers.Pixel(-(size.w/2), -size.h);
93 icon = new OpenLayers.Icon(
94 'https://www.openstreetmap.org/openlayers/img/marker.png',size,offset);
97 new OpenLayers.LonLat(0, 0).transform(
98 new OpenLayers.Projection("EPSG:4326"),
99 map.getProjectionObject());
100 map.setCenter(lonLat, 1);
103 function set_marker(msg) {
104 if (locations.push(msg) > maxmarkers) {
107 console.log("new marker list " + JSON.stringify(locations));
108 tstamp.innerHTML = msg.timestamp;
109 // Draw a line between backlog locations
110 for (var i = 1; i < locations.length; i++) {
112 new OpenLayers.Geometry.Point(
113 locations[i-1].longitude,
114 locations[i-1].latitude)
115 .transform(new OpenLayers.Projection("EPSG:4326"),
116 map.getProjectionObject());
118 new OpenLayers.Geometry.Point(
119 locations[i].longitude,
120 locations[i].latitude)
121 .transform(new OpenLayers.Projection("EPSG:4326"),
122 map.getProjectionObject());
124 new OpenLayers.Geometry.LineString([p0, p1]);
126 new OpenLayers.Feature.Vector(leg, null, lineStyle);
127 line.addFeatures([lineFeature]);
130 // Set marker at the reported (last) location
131 const lonLat = new OpenLayers.LonLat(+msg.longitude,
132 +msg.latitude).transform(
133 new OpenLayers.Projection("EPSG:4326"),
134 map.getProjectionObject());
135 markers.addMarker(new OpenLayers.Marker(lonLat, icon));
136 map.setCenter(lonLat, 14);
138 function display_status(msg) {
139 console.log("status " + JSON.stringify(msg));
140 devstatus.innerHTML = "BAT: " + msg.battery;
144 wsurl = new URL("ws://localhost/");
145 wsurl.protocol = wsproto
146 wsurl.hostname = wshost
148 console.log("wsurl is " + wsurl)
149 ws = new WebSocket(wsurl);
150 ws.onopen = ws_onopen;
151 ws.onmessage = ws_onmessage;
152 ws.onerror = ws_onerror;
153 ws.onclose = ws_onclose;
155 function ws_onopen(event) {
156 console.log("ws opened " + event);
157 sts.innerHTML = "online";
158 imei.disabled = false;
159 send.disabled = false;
160 clear.disabled = false;
163 function ws_onmessage(event) {
164 console.log("message " + event.data);
165 msg = JSON.parse(event.data);
166 if (msg.type === "location") {
168 } else if (msg.type === "status") {
173 function ws_onerror(event) {
174 console.log("error " + event);
175 sts.innerHTML = "error: " + event;
177 function ws_onclose(event) {
178 console.log("close " + event);
179 sts.innerHTML = "offline";
180 imei.disabled = true;
181 send.disabled = true;
182 clear.disabled = true;
183 setTimeout(open_ws, 5000);
186 function sendIMEI(do_clear) {
191 imeis.add(imei.value);
194 const imstr = Array.from(imeis).join(",");
195 document.title = imstr;
196 subslist.innerHTML = imstr;
198 imei: Array.from(imeis),
200 timestamp: Date.now(),
203 console.log("sending" + JSON.stringify(msg));
204 ws.send(JSON.stringify(msg));
208 function handleKey(evt) {
209 if (evt.keyCode === 13 || evt.keyCode === 14) {
210 if (!imei.disabled) {
218 <body onload="init();">
219 <div style="width:100%; height:2%" id="hdr">
220 <input id="imei" type="text" name="imei"
221 size="16" maxlength="16" placeholder="Enter IMEI"
222 autocomplete="off" onkeyup="handleKey(event)">
223 <input type="button" id="send" name="send" value="Send"
224 onclick="sendIMEI(false)" disabled>
225 <input type="button" id="clear" name="clear" value="Clear"
226 onclick="sendIMEI(true)" disabled>
227 <span id="subslist"></span>
228 <span style="float:right">
229 | <span id="devstatus"></span>
230 | <span id="tstamp"></span>
233 <div style="width:100%; height:97%" id="map"></div>
234 <div style="width:100%; height:1%">
235 <span id="sts"></span>
236 <span id="about" style="float:right">
237 <a href="http://www.average.org/gps303/">
238 http://www.average.org/gps303/</a>