Support for raster mbtiles (issue #13)

public/templates/index.tmpl

@@ -43,8 +43,13 @@
       <div class="item">
         <div class="sample-img"></div>
         <h3>{{name}}</h3>
-        <p>Id: {{@key}} | <a href="/vector/{{@key}}.json">TileJSON</a></p>
+        <p>Id: {{@key}} | <a href="/data/{{@key}}.json">TileJSON</a></p>
-        <a class="btn" href="/vector/{{@key}}/{{viewer_hash}}">X-Ray viewer</a>
+        {{#is_vector}}
+        <a class="btn" href="/data/{{@key}}/{{viewer_hash}}">X-Ray viewer</a>
+        {{/is_vector}}
+        {{^is_vector}}
+        Raster tiles
+        {{/is_vector}}
       </div>
     {{/each}}
     </div>

public/templates/xray.tmpl

@@ -84,7 +84,7 @@
     }
   };
   xhttp.responseType = 'json';
-  xhttp.open('GET', '/vector/{{id}}.json', true);
+  xhttp.open('GET', '/data/{{id}}.json', true);
   xhttp.send();
 
   var propertyList = document.getElementById('propertyList');

src/serve_style.js

@@ -7,7 +7,7 @@ var clone = require('clone'),
     express = require('express');
 
 
-module.exports = function(options, repo, params, id, reportVector, reportFont) {
+module.exports = function(options, repo, params, id, reportTiles, reportFont) {
   var app = express().disable('x-powered-by');
 
   var styleFile = path.join(options.paths.styles, params.style);
@@ -18,8 +18,8 @@ module.exports = function(options, repo, params, id, reportVector, reportFont) {
     var url = source.url;
     if (url.lastIndexOf('mbtiles:', 0) === 0) {
       var mbtiles = url.substring('mbtiles://'.length);
-      var identifier = reportVector(mbtiles);
+      var identifier = reportTiles(mbtiles);
-      source.url = 'local://vector/' + identifier + '.json';
+      source.url = 'local://data/' + identifier + '.json';
     }
   });
 

src/serve_tiles.js

@@ -23,24 +23,27 @@ module.exports = function(options, repo, params, id) {
                            function(err) {
     source.getInfo(function(err, info) {
       tileJSON['name'] = id;
+      tileJSON['format'] = 'pbf';
 
       Object.assign(tileJSON, info);
 
       tileJSON['tilejson'] = '2.0.0';
       tileJSON['basename'] = id;
-      tileJSON['format'] = 'pbf';
 
       Object.assign(tileJSON, params.tilejson || {});
       utils.fixTileJSONCenter(tileJSON);
     });
   });
 
-  var tilePattern = '/vector/' + id + '/:z(\\d+)/:x(\\d+)/:y(\\d+).pbf';
+  var tilePattern = '/data/' + id + '/:z(\\d+)/:x(\\d+)/:y(\\d+).:format([\\w]+)';
 
   app.get(tilePattern, function(req, res, next) {
     var z = req.params.z | 0,
         x = req.params.x | 0,
         y = req.params.y | 0;
+    if (req.params.format != tileJSON.format) {
+      return res.status(404).send('Invalid format');
+    }
     if (z < tileJSON.minzoom || 0 || x < 0 || y < 0 ||
         z > tileJSON.maxzoom ||
         x >= Math.pow(2, z) || y >= Math.pow(2, z)) {
@@ -56,8 +59,10 @@ module.exports = function(options, repo, params, id) {
       } else {
         var md5 = crypto.createHash('md5').update(data).digest('base64');
         headers['content-md5'] = md5;
-        headers['content-type'] = 'application/x-protobuf';
+        if (tileJSON['format'] == 'pbf') {
-        headers['content-encoding'] = 'gzip';
+          headers['content-type'] = 'application/x-protobuf';
+          headers['content-encoding'] = 'gzip';
+        }
         res.set(headers);
 
         if (data == null) {
@@ -69,10 +74,10 @@ module.exports = function(options, repo, params, id) {
     });
   });
 
-  app.get('/vector/' + id + '.json', function(req, res, next) {
+  app.get('/data/' + id + '.json', function(req, res, next) {
     var info = clone(tileJSON);
     info.tiles = utils.getTileUrls(req, info.tiles,
-                                   'vector/' + id, info.format);
+                                   'data/' + id, info.format);
     return res.send(info);
   });
 

src/server.js

@@ -17,7 +17,7 @@ var clone = require('clone'),
 var serve_font = require('./serve_font'),
     serve_raster = require('./serve_raster'),
     serve_style = require('./serve_style'),
-    serve_vector = require('./serve_vector'),
+    serve_tiles = require('./serve_tiles'),
     utils = require('./utils');
 
 module.exports = function(opts, callback) {
@@ -25,7 +25,7 @@ module.exports = function(opts, callback) {
       serving = {
         styles: {},
         raster: {},
-        vector: {},
+        tiles: {},
         fonts: { // default fonts, always expose these (if they exist)
           'Open Sans Regular': true,
           'Arial Unicode MS Regular': true
@@ -61,7 +61,7 @@ module.exports = function(opts, callback) {
   paths.sprites = path.resolve(paths.root, paths.sprites || '');
   paths.mbtiles = path.resolve(paths.root, paths.mbtiles || '');
 
-  var vector = clone(config.vector || {});
+  var tiles = clone(config.data || {});
 
   Object.keys(config.styles || {}).forEach(function(id) {
     var item = config.styles[id];
@@ -70,21 +70,21 @@ module.exports = function(opts, callback) {
       return;
     }
 
-    if (item.vector !== false) {
+    if (item.serve_data !== false) {
       app.use('/', serve_style(options, serving.styles, item, id,
         function(mbtiles) {
-          var vectorItemId;
+          var tilesItemId;
-          Object.keys(vector).forEach(function(id) {
+          Object.keys(tiles).forEach(function(id) {
-            if (vector[id].mbtiles == mbtiles) {
+            if (tiles[id].mbtiles == mbtiles) {
-              vectorItemId = id;
+              tilesItemId = id;
             }
           });
-          if (vectorItemId) { // mbtiles exist in the vector config
+          if (tilesItemId) { // mbtiles exist in the tiles config
-            return vectorItemId;
+            return tilesItemId;
           } else {
             var id = mbtiles.substr(0, mbtiles.lastIndexOf('.')) || mbtiles;
-            while (vector[id]) id += '_';
+            while (tiles[id]) id += '_';
-            vector[id] = {
+            tiles[id] = {
               'mbtiles': mbtiles
             };
             return id;
@@ -105,14 +105,14 @@ module.exports = function(opts, callback) {
 
   app.use(cors());
 
-  Object.keys(vector).forEach(function(id) {
+  Object.keys(tiles).forEach(function(id) {
-    var item = vector[id];
+    var item = tiles[id];
     if (!item.mbtiles || item.mbtiles.length == 0) {
       console.log('Missing "mbtiles" property for ' + id);
       return;
     }
 
-    app.use('/', serve_vector(options, serving.vector, item, id));
+    app.use('/', serve_tiles(options, serving.tiles, item, id));
   });
 
   app.get('/styles.json', function(req, res, next) {
@@ -142,11 +142,11 @@ module.exports = function(opts, callback) {
   app.get('/raster.json', function(req, res, next) {
     res.send(addTileJSONs([], req, 'raster'));
   });
-  app.get('/vector.json', function(req, res, next) {
+  app.get('/data.json', function(req, res, next) {
-    res.send(addTileJSONs([], req, 'vector'));
+    res.send(addTileJSONs([], req, 'tiles'));
   });
   app.get('/index.json', function(req, res, next) {
-    res.send(addTileJSONs(addTileJSONs([], req, 'raster'), req, 'vector'));
+    res.send(addTileJSONs(addTileJSONs([], req, 'raster'), req, 'tiles'));
   });
 
   //------------------------------------
@@ -195,15 +195,16 @@ module.exports = function(opts, callback) {
         }
       }
     });
-    var data = clone(serving.vector || {});
+    var data = clone(serving.tiles || {});
     Object.keys(data).forEach(function(id) {
-      var vector = data[id];
+      var tiles = data[id];
-      var center = vector.center;
+      var center = tiles.center;
       if (center) {
-        vector.viewer_hash = '#' + center[2] + '/' +
+        tiles.viewer_hash = '#' + center[2] + '/' +
-                             center[1].toFixed(5) + '/' +
+                            center[1].toFixed(5) + '/' +
-                             center[0].toFixed(5);
+                            center[0].toFixed(5);
       }
+      tiles.is_vector = tiles.format == 'pbf';
     });
     return {
       styles: styles,
@@ -228,14 +229,14 @@ module.exports = function(opts, callback) {
     return res.redirect(301, '/styles/' + req.params.id + '/');
   });
 
-  serveTemplate('/vector/:id/$', 'xray', function(params) {
+  serveTemplate('/data/:id/$', 'xray', function(params) {
     var id = params.id;
-    var vector = serving.vector[id];
+    var tiles = serving.tiles[id];
-    if (!vector) {
+    if (!tiles) {
       return null;
     }
-    vector.id = id;
+    tiles.id = id;
-    return vector;
+    return tiles;
   });
 
   var server = app.listen(process.env.PORT || opts.port, function() {

test/metadata.js

@@ -41,7 +41,7 @@ var testTileJSON = function(url, basename) {
 describe('Metadata', function() {
   testTileJSONArray('/index.json');
   testTileJSONArray('/raster.json');
-  testTileJSONArray('/vector.json');
+  testTileJSONArray('/data.json');
 
   describe('/styles.json is valid array', function() {
     it('is json', function(done) {
@@ -65,5 +65,5 @@ describe('Metadata', function() {
   });
 
   testTileJSON('/raster/test.json', 'test');
-  testTileJSON('/vector/zurich-vector.json', 'zurich-vector');
+  testTileJSON('/data/zurich-vector.json', 'zurich-vector');
 });

test/tiles_vector.js

@@ -1,5 +1,5 @@
 var testTile = function(prefix, z, x, y, status) {
-  var path = '/vector/' + prefix + '/' + z + '/' + x + '/' + y + '.pbf';
+  var path = '/data/' + prefix + '/' + z + '/' + x + '/' + y + '.pbf';
   it(path + ' returns ' + status, function(done) {
     var test = supertest(app).get(path);
     if (status) test.expect(status);