93 lines
2.9 KiB
JavaScript
93 lines
2.9 KiB
JavaScript
'use strict';
|
|
|
|
var path = require('path'),
|
|
fs = require('fs');
|
|
|
|
var clone = require('clone'),
|
|
express = require('express');
|
|
|
|
|
|
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);
|
|
|
|
var styleJSON = clone(require(styleFile));
|
|
Object.keys(styleJSON.sources).forEach(function(name) {
|
|
var source = styleJSON.sources[name];
|
|
var url = source.url;
|
|
if (url.lastIndexOf('mbtiles:', 0) === 0) {
|
|
var mbtilesFile = url.substring('mbtiles://'.length);
|
|
var fromData = mbtilesFile[0] == '{' &&
|
|
mbtilesFile[mbtilesFile.length - 1] == '}';
|
|
|
|
if (fromData) {
|
|
mbtilesFile = mbtilesFile.substr(1, mbtilesFile.length - 2);
|
|
}
|
|
var identifier = reportTiles(mbtilesFile, fromData);
|
|
source.url = 'local://data/' + identifier + '.json';
|
|
}
|
|
});
|
|
|
|
var findFontReferences = function(obj) {
|
|
Object.keys(obj).forEach(function(key) {
|
|
var value = obj[key];
|
|
if (key == 'text-font') {
|
|
if (value && value.length > 0) {
|
|
value.forEach(reportFont);
|
|
}
|
|
} else if (value && typeof value == 'object') {
|
|
findFontReferences(value);
|
|
}
|
|
});
|
|
};
|
|
styleJSON.layers.forEach(findFontReferences);
|
|
|
|
var spritePath = path.join(options.paths.sprites,
|
|
path.basename(styleFile, '.json'));
|
|
|
|
styleJSON.sprite = 'local://styles/' + id + '/sprite';
|
|
styleJSON.glyphs = 'local://fonts/{fontstack}/{range}.pbf';
|
|
|
|
repo[id] = styleJSON;
|
|
|
|
app.get('/' + id + '.json', function(req, res, next) {
|
|
var fixUrl = function(url, opt_nokey) {
|
|
var query = '';
|
|
if (!opt_nokey && req.query.key) {
|
|
query = '?key=' + req.query.key;
|
|
}
|
|
return url.replace(
|
|
'local://', req.protocol + '://' + req.headers.host + '/') + query;
|
|
};
|
|
|
|
var styleJSON_ = clone(styleJSON);
|
|
Object.keys(styleJSON_.sources).forEach(function(name) {
|
|
var source = styleJSON_.sources[name];
|
|
source.url = fixUrl(source.url);
|
|
});
|
|
// mapbox-gl-js viewer cannot handle sprite urls with query
|
|
styleJSON_.sprite = fixUrl(styleJSON_.sprite, true);
|
|
styleJSON_.glyphs = fixUrl(styleJSON_.glyphs);
|
|
return res.send(styleJSON_);
|
|
});
|
|
|
|
app.get('/' + id + '/sprite:scale(@[23]x)?\.:format([\\w]+)',
|
|
function(req, res, next) {
|
|
var scale = req.params.scale,
|
|
format = req.params.format;
|
|
var filename = spritePath + (scale || '') + '.' + format;
|
|
return fs.readFile(filename, function(err, data) {
|
|
if (err) {
|
|
console.log('Sprite load error:', filename);
|
|
return res.status(404).send('File not found');
|
|
} else {
|
|
if (format == 'json') res.header('Content-type', 'application/json');
|
|
if (format == 'png') res.header('Content-type', 'image/png');
|
|
return res.send(data);
|
|
}
|
|
});
|
|
});
|
|
|
|
return app;
|
|
};
|