terriajs/lib/Models/proxyCatalogItemUrl.js

Geospatial data visualization platform.

'use strict';

/*global require*/
var defaultValue = require('terriajs-cesium/Source/Core/defaultValue');
var defined = require('terriajs-cesium/Source/Core/defined');

var proxyCatalogItemUrl = function(catalogItem, url, cacheDuration) {
    if (!defined(catalogItem)) {
        return url;
    }

    var terria = catalogItem.terria;
    if (!defined(terria)) {
        return url;
    }

    var corsProxy = terria.corsProxy;
    if (!defined(corsProxy)) {
        return url;
    }

    if (!corsProxy.shouldUseProxy(url) && !catalogItem.forceProxy) {
        return url;
    }

    return corsProxy.getURL(url, defaultValue(catalogItem.cacheDuration, cacheDuration));
};

module.exports = proxyCatalogItemUrl;