57 lines
2.0 KiB
JavaScript
57 lines
2.0 KiB
JavaScript
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var isUrlRe = /^(?:https?:)?\/\//i,
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url = require('url'),
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request,
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PromiseConstructor,
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AbstractFileManager = require("../less/environment/abstract-file-manager.js"),
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logger = require("../less/logger");
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var UrlFileManager = function() {
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};
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UrlFileManager.prototype = new AbstractFileManager();
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UrlFileManager.prototype.supports = function(filename, currentDirectory, options, environment) {
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return isUrlRe.test( filename ) || isUrlRe.test(currentDirectory);
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};
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UrlFileManager.prototype.loadFile = function(filename, currentDirectory, options, environment) {
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if (!PromiseConstructor) {
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PromiseConstructor = typeof Promise === 'undefined' ? require('promise') : Promise;
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}
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return new PromiseConstructor(function(fulfill, reject) {
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if (request === undefined) {
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try { request = require('request'); }
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catch(e) { request = null; }
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}
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if (!request) {
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reject({ type: 'File', message: "optional dependency 'request' required to import over http(s)\n" });
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return;
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}
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var urlStr = isUrlRe.test( filename ) ? filename : url.resolve(currentDirectory, filename),
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urlObj = url.parse(urlStr);
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if (!urlObj.protocol) {
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urlObj.protocol = "http";
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urlStr = urlObj.format();
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}
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request.get({uri: urlStr, strictSSL: !options.insecure }, function (error, res, body) {
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if (error) {
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reject({ type: 'File', message: "resource '" + urlStr + "' gave this Error:\n " + error + "\n" });
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return;
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}
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if (res && res.statusCode === 404) {
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reject({ type: 'File', message: "resource '" + urlStr + "' was not found\n" });
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return;
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}
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if (!body) {
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logger.warn('Warning: Empty body (HTTP ' + res.statusCode + ') returned by "' + urlStr + '"');
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}
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fulfill({ contents: body, filename: urlStr });
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});
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});
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};
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module.exports = UrlFileManager;
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