50 lines
1.8 KiB
JavaScript
50 lines
1.8 KiB
JavaScript
const isUrlRe = /^(?:https?:)?\/\//i;
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import url from 'url';
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let request;
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import AbstractFileManager from '../less/environment/abstract-file-manager.js';
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import logger from '../less/logger';
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class UrlFileManager extends AbstractFileManager {
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supports(filename, currentDirectory, options, environment) {
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return isUrlRe.test( filename ) || isUrlRe.test(currentDirectory);
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}
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loadFile(filename, currentDirectory, options, environment) {
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return new Promise((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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let urlStr = isUrlRe.test( filename ) ? filename : url.resolve(currentDirectory, filename);
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const 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 }, (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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}
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export default UrlFileManager;
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