first draft of a public shared link view

* API method to create a new time-limited shared link
* API method for retrieving the current location given a shared link token
* map view that refreshes the current location every 5 seconds

compass/app/Http/Controllers/Api.php

@@ -412,4 +412,31 @@ public static function geocode($params) {
     }
   }
 
+  public function share(Request $request) {
+    $token = $request->input('token');
+    if(!$token)
+      return response(json_encode(['error' => 'no token provided']))->header('Content-Type', 'application/json');
+
+    $db = DB::table('databases')->where('write_token','=',$token)->first();
+    if(!$db)
+      return response(json_encode(['error' => 'invalid token']))->header('Content-Type', 'application/json');
+
+    $expires_at = time() + $request->input('duration');
+    $share_token = str_random(15);
+
+    $share_id = DB::table('shares')->insertGetId([
+      'database_id' => $db->id,
+      'created_at' => date('Y-m-d H:i:s'),
+      'expires_at' => date('Y-m-d H:i:s', $expires_at),
+      'token' => $share_token,
+    ]);
+
+    $share_url = env('BASE_URL').'s/'.$share_token;
+
+    return response(json_encode([
+      'url' => $share_url
+    ]), 201)->header('Content-Type', 'application/json')
+       ->header('Location', $share_url);
+  }
+
 }

compass/app/Http/Controllers/Share.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Laravel\Lumen\Routing\Controller as BaseController;
+use Illuminate\Http\Request;
+use DB;
+
+class Share extends BaseController
+{
+
+  private function _databaseFromToken($token) {
+    $share = DB::table('shares')
+      ->where('token', $token)
+      ->where('expires_at', '>', time())
+      ->first();
+
+    if(!$share) return false;
+
+    $database = DB::table('databases')->where('id', $share->database_id)->first();
+
+    return $database;
+  }
+
+  public function view(Request $request, $token) {
+    $database = $this->_databaseFromToken($token);
+
+    if(!$database) {
+      return view('share-expired');
+    }
+
+    return view('share', [
+      'database' => $database,
+      'share_token' => $token,
+    ]);
+  }
+
+  public function current_location(Request $request) {
+    $database = $this->_databaseFromToken($request->input('token'));
+
+    $response = [
+      'data' => json_decode($database->last_location),
+    ];
+
+    return response(json_encode($response))->header('Content-Type', 'application/json');
+  }
+
+}

compass/app/Http/routes.php

@@ -2,6 +2,9 @@
 
 $app->get('/', 'Controller@index');
 
+$app->get('/s/{token:[A-Za-z0-9]+}', 'Share@view');
+$app->get('/share/current.json', 'Share@current_location');
+
 $app->post('/auth/start', 'IndieAuth@start');
 $app->get('/auth/callback', 'IndieAuth@callback');
 $app->get('/auth/github', 'IndieAuth@github');
@@ -22,3 +25,4 @@
 $app->get('/api/input', 'Api@account');
 $app->post('/api/input', 'Api@input');
 $app->post('/api/trip-complete', 'Api@trip_complete');
+$app->post('/api/share', 'Api@share');

compass/database/migrations/2019_05_12_123107_shares.php

@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class Shares extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('shares', function (Blueprint $table) {
+            $table->increments('id');
+            $table->unsignedInteger('database_id');
+            $table->datetime('expires_at')->nullable();
+            $table->string('token', 30);
+            $table->datetime('created_at');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::drop('shares');
+    }
+}

compass/public/assets/map.js

@@ -32,10 +32,6 @@ var startMarker;
 var endMarker;
 var timers = [];
 
-function pointFromGeoJSON(geo) {
-  return L.latLng(geo[1], geo[0])
-}
-
 function resetAnimation() {
   if(animatedMarker) {
     map.removeLayer(animatedMarker);

compass/public/assets/share-map.css

@@ -0,0 +1,12 @@
+html, body {
+  height: 100%;
+}
+#map {
+  height: 100%;
+}
+
+/* Move the map zoom controls away from the Compass logo */
+.leaflet-top .leaflet-control-zoom {
+  margin-top: 60px;
+  margin-left: 26px;
+}

compass/public/assets/share.js

@@ -0,0 +1,60 @@
+var map = L.map('map', { zoomControl: false }).setView([45.516, -122.660], 14, null, null, 24);
+
+L.tileLayer('https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token={accessToken}', {
+    attribution: 'Map data &copy; <a href="https://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="https://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, Imagery © <a href="https://www.mapbox.com/">Mapbox</a>',
+    maxZoom: 18,
+    id: 'mapbox.streets',
+    accessToken: 'pk.eyJ1IjoiYWFyb25wayIsImEiOiI1T0tpNjdzIn0.OQjXyI3xSt8Dj8na3l90Sg'
+}).addTo(map);
+
+new L.Control.Zoom({ position: 'topleft' }).addTo(map);
+
+var geojsonLineOptions = {
+  color: "#0033ff",
+  weight: 4,
+  opacity: 0.5
+};
+
+var startIcon = L.icon({
+  iconUrl: '/assets/map-pin-start.png',
+  iconSize: [18,28],
+  iconAnchor: [9,28]
+});
+
+// Load the current location and show on the map
+
+var currentLocationMarker;
+
+function getCurrentLocation() {
+  $.getJSON("/share/current.json?token="+$("#share_token").val(), function(data){
+    if(data.data) {
+      moveMarkerToPosition(data.data);
+      map.setView(currentLocationMarker.getLatLng());
+    }
+    setTimeout(getCurrentLocation, 5000);
+  });
+}
+
+getCurrentLocation();
+
+
+
+
+
+
+function moveMarkerToPosition(feature) {
+  if(feature && feature.geometry) {
+    var coord = pointFromGeoJSON(feature.geometry.coordinates);
+    if(coord) {
+      if(!currentLocationMarker) {
+        currentLocationMarker = L.marker(coord).addTo(map);
+      } else {
+        currentLocationMarker.setLatLng(coord);
+      }
+    }
+  }
+}
+
+function pointFromGeoJSON(geo) {
+  return L.latLng(geo[1], geo[0])
+}

compass/resources/views/layouts/share.blade.php

@@ -0,0 +1,25 @@
+<!doctype html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>Compass</title>
+    <link rel="stylesheet" href="/assets/semantic/semantic.min.css">
+    <link rel="stylesheet" href="/assets/font-awesome-4.4.0/css/font-awesome.min.css">
+    <link rel="stylesheet" href="/assets/styles.css">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <script src="/assets/jquery-1.11.3.min.js"></script>
+    <link rel="stylesheet" href="/assets/leaflet-0.7.3/leaflet.css" />
+    <link rel="stylesheet" href="/assets/share-map.css">
+  </head>
+  <body>
+
+    @yield('content')
+
+    <script src="/assets/leaflet-0.7.3/leaflet.js"></script>
+    <script src="/assets/leaflet-0.7.3/esri-leaflet.js"></script>
+    <script src="/assets/semantic/semantic.min.js"></script>
+    <script src="/assets/semantic/components/dropdown.min.js"></script>
+    <script src="/assets/extensions.js"></script>
+    <script src="/assets/share.js"></script>
+  </body>
+</html>

compass/resources/views/share-expired.blade.php

@@ -0,0 +1,9 @@
+@extends('layouts.master')
+
+@section('content')
+
+<div style="text-align: center; margin-top: 3em;">
+  This shared link has expired.
+</div>
+
+@endsection

compass/resources/views/share.blade.php

@@ -0,0 +1,9 @@
+@extends('layouts.share')
+
+@section('content')
+
+<div id="map"></div>
+
+<input type="hidden" id="share_token" value="{{ $share_token }}">
+
+@endsection