274 lines
7.1 KiB
JavaScript
274 lines
7.1 KiB
JavaScript
L.AwesomeMarkers.Icon.prototype.options.prefix = 'ion'
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document.addEventListener('DOMContentLoaded', main)
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function get(url) {
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return new Promise(function(resolve, reject) {
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var req = new XMLHttpRequest();
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req.open('GET', url);
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req.onload = function() {
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if (req.status == 200) {
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resolve(req.response);
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}
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else {
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reject(Error(req.statusText));
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}
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};
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req.onerror = function() {
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reject(Error("Network Error"));
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};
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req.send();
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});
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}
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function getJSON(url) {
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return get(url).then(JSON.parse)
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}
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function main() {
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var options = { worldCopyJump: true,
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zoomControl: false
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}
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var map = L.map(document.getElementById("map"), options)
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var sh = document.getElementById("sidebarhandle")
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sh.onclick = function () {
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var sb = document.getElementById("sidebar")
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if (sb.classList.contains("hidden"))
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sb.classList.remove("hidden")
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else
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sb.classList.add("hidden")
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map.invalidateSize()
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}
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var urls = [ 'https://map.luebeck.freifunk.net/data/nodes.json',
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'https://map.luebeck.freifunk.net/data/graph.json'
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]
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var p = Promise.all(urls.map(getJSON))
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p.then(handle_data(map))
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}
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function sort(key, d) {
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return d.slice().sort( function (a, b) {
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return a[key] - b[key]
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}).reverse()
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}
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function limit(key, m, d) {
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return d.filter( function (d) {
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return d[key].isAfter(m)
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})
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}
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function offline(d) {
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return !d.flags.online
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}
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function online(d) {
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return d.flags.online
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}
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function has_location(d) {
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return "location" in d.nodeinfo
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}
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function subtract(a, b) {
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var ids = {}
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b.forEach( function (d) {
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ids[d.nodeinfo.node_id] = true
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})
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return a.filter( function (d) {
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return !(d.nodeinfo.node_id in ids)
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})
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}
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function handle_data(map) {
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return function (data) {
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var nodedict = data[0]
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var nodes = Object.keys(nodedict.nodes).map(function (key) { return nodedict.nodes[key] })
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nodes = nodes.filter( function (d) {
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return "firstseen" in d && "lastseen" in d
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})
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nodes.forEach( function(node) {
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node.firstseen = moment(node.firstseen)
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node.lastseen = moment(node.lastseen)
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})
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var age = moment().subtract(14, 'days')
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var newnodes = limit("firstseen", age, sort("firstseen", nodes).filter(online))
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var lostnodes = limit("lastseen", age, sort("lastseen", nodes).filter(offline))
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var onlinenodes = subtract(nodes.filter(online).filter(has_location), newnodes)
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addToList(document.getElementById("newnodes"), "firstseen", newnodes)
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addToList(document.getElementById("lostnodes"), "lastseen", lostnodes)
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var graph = data[1].batadv
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var nodes = data[0].nodes
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graph.nodes.forEach( function (d) {
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if (d.node_id in nodes && "location" in nodes[d.node_id].nodeinfo)
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d.node = nodes[d.node_id]
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})
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graph.links.forEach( function (d) {
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if (graph.nodes[d.source].node)
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d.source = graph.nodes[d.source]
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else
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d.source = undefined
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if (graph.nodes[d.target].node)
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d.target = graph.nodes[d.target]
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else
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d.target = undefined
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})
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graph = graph.links.filter( function (d) {
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var ok = d.source !== undefined && d.target !== undefined
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return ok
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})
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graph.forEach( function (d) {
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d.latlngs = []
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d.latlngs.push(L.latLng(d.source.node.nodeinfo.location.latitude, d.source.node.nodeinfo.location.longitude))
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d.latlngs.push(L.latLng(d.target.node.nodeinfo.location.latitude, d.target.node.nodeinfo.location.longitude))
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d.distance = d.latlngs[0].distanceTo(d.latlngs[1])
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})
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longlinks = graph.slice().sort( function (a, b) {
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return a.distance - b.distance
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}).reverse().slice(0, 10)
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addToLongLinksList(document.getElementById("longlinks"), longlinks)
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mkmap(map, newnodes, lostnodes, onlinenodes, graph)
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}
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}
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function showDistance(d) {
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return (new Intl.NumberFormat("de-DE", {maximumFractionDigits: 0}).format(d.distance)) + " m"
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}
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function mkmap(map, newnodes, lostnodes, onlinenodes, graph) {
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L.control.zoom({ position: "topright" }).addTo(map)
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L.tileLayer("http://otile{s}.mqcdn.com/tiles/1.0.0/osm/{z}/{x}/{y}.jpg", {
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subdomains: "1234",
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type: "osm",
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attribution: "Map data Tiles © <a href=\"http://www.mapquest.com/\" target=\"_blank\">MapQuest</a> <img src=\"http://developer.mapquest.com/content/osm/mq_logo.png\" />, Map data © OpenStreetMap contributors, CC-BY-SA",
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maxZoom: 18
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}).addTo(map)
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addLinksToMap(map, graph)
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var nodes = newnodes.concat(lostnodes).filter( function (d) {
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return "location" in d.nodeinfo
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})
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var markers = nodes.map( function (d) {
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var icon = L.AwesomeMarkers.icon({ markerColor: d.flags.online ? "green" : "red",
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icon: d.flags.online ? "lightbulb" : "bug" })
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var opt = { icon: icon }
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var m = L.marker([d.nodeinfo.location.latitude, d.nodeinfo.location.longitude], opt)
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m.bindPopup(d.nodeinfo.hostname)
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return m
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})
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var onlinemarkers = onlinenodes.map( function (d) {
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var opt = { color: "#76B22D",
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fillColor: "#76B22D",
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radius: 5,
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opacity: 0.7,
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fillOpacity: 0.5
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}
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var m = L.circleMarker([d.nodeinfo.location.latitude, d.nodeinfo.location.longitude], opt)
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m.bindPopup(d.nodeinfo.hostname)
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return m
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})
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var group = L.featureGroup(markers).addTo(map)
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var group_online = L.featureGroup(onlinemarkers).addTo(map)
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map.fitBounds(group.getBounds())
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}
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function addLinksToMap(map, graph) {
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var scale = chroma.scale(['green', 'orange', 'red']).domain([1, 10])
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var lines = graph.map( function (d) {
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var opts = { color: scale(d.tq).hex(),
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weight: 3
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}
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var line = L.polyline(d.latlngs, opts)
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line.bindPopup(d.source.node.nodeinfo.hostname + " – " + d.target.node.nodeinfo.hostname + "<br><strong>" + showDistance(d) + "</strong>")
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return line
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})
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var group = L.featureGroup(lines).addTo(map)
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}
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function addToLongLinksList(el, links) {
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links.forEach( function (d) {
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var row = document.createElement("tr")
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var td1 = document.createElement("td")
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td1.textContent = d.source.node.nodeinfo.hostname + " – " + d.target.node.nodeinfo.hostname
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row.appendChild(td1)
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var td2 = document.createElement("td")
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td2.textContent = showDistance(d)
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row.appendChild(td2)
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el.appendChild(row)
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})
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}
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function addToList(el, tf, list) {
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list.forEach( function (d) {
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var time = moment(d[tf]).fromNow()
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var row = document.createElement("tr")
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var td1 = document.createElement("td")
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var span = document.createElement("span")
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span.classList.add("hostname")
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span.classList.add(d.flags.online ? "online" : "offline")
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span.textContent = d.nodeinfo.hostname
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td1.appendChild(span)
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if ("owner" in d.nodeinfo) {
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var contact = d.nodeinfo.owner.contact
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td1.appendChild(document.createTextNode(" – " + contact + ""))
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}
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var td2 = document.createElement("td")
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td2.textContent = time
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row.appendChild(td1)
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row.appendChild(td2)
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el.appendChild(row)
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})
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}
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