61 lines
2.3 KiB
JavaScript
61 lines
2.3 KiB
JavaScript
/* eslint-disable no-unused-vars */
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/**
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* @todo - remove top eslint rule when FileManagers have JSDoc type
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* and are TS-type-checked
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*/
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import { createRequire } from 'module';
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const require = createRequire(import.meta.url);
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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.js';
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const UrlFileManager = function() {}
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UrlFileManager.prototype = Object.assign(new 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('needle'); }
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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 \'needle\' 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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/** native-request currently has a bug */
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const hackUrlStr = urlStr.indexOf('?') === -1 ? urlStr + '?' : urlStr
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request.get(hackUrlStr, { follow_max: 5 }, (err, resp, body) => {
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if (err || resp && resp.statusCode >= 400) {
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const message = resp && resp.statusCode === 404
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? `resource '${urlStr}' was not found\n`
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: `resource '${urlStr}' gave this Error:\n ${err || resp.statusMessage || resp.statusCode}\n`;
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reject({ type: 'File', message });
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return;
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}
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if (resp.statusCode >= 300) {
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reject({ type: 'File', message: `resource '${urlStr}' caused too many redirects` });
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return;
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}
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body = body.toString('utf8');
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if (!body) {
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logger.warn(`Warning: Empty body (HTTP ${resp.statusCode}) returned by "${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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