ce4c83ff
 wxy
初始提交
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var isUrlRe = /^(?:https?:)?\/\//i,
url = require('url'),
request,
PromiseConstructor,
AbstractFileManager = require('../less/environment/abstract-file-manager.js'),
logger = require('../less/logger');
var UrlFileManager = function() {
};
UrlFileManager.prototype = new AbstractFileManager();
UrlFileManager.prototype.supports = function(filename, currentDirectory, options, environment) {
return isUrlRe.test( filename ) || isUrlRe.test(currentDirectory);
};
UrlFileManager.prototype.loadFile = function(filename, currentDirectory, options, environment) {
if (!PromiseConstructor) {
PromiseConstructor = typeof Promise === 'undefined' ? require('promise') : Promise;
}
return new PromiseConstructor(function(fulfill, reject) {
if (request === undefined) {
try { request = require('request'); }
catch (e) { request = null; }
}
if (!request) {
reject({ type: 'File', message: 'optional dependency \'request\' required to import over http(s)\n' });
return;
}
var urlStr = isUrlRe.test( filename ) ? filename : url.resolve(currentDirectory, filename),
urlObj = url.parse(urlStr);
if (!urlObj.protocol) {
urlObj.protocol = 'http';
urlStr = urlObj.format();
}
request.get({uri: urlStr, strictSSL: !options.insecure }, function (error, res, body) {
if (error) {
reject({ type: 'File', message: 'resource \'' + urlStr + '\' gave this Error:\n ' + error + '\n' });
return;
}
if (res && res.statusCode === 404) {
reject({ type: 'File', message: 'resource \'' + urlStr + '\' was not found\n' });
return;
}
if (!body) {
logger.warn('Warning: Empty body (HTTP ' + res.statusCode + ') returned by "' + urlStr + '"');
}
fulfill({ contents: body, filename: urlStr });
});
});
};
module.exports = UrlFileManager;
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