parallaxis/node_modules/jsdom/lib/jsdom.js

378 lines
10 KiB
JavaScript
Executable File

var fs = require('fs');
var path = require('path');
var URL = require('url');
var pkg = require('../package.json');
var toFileUrl = require('./jsdom/utils').toFileUrl;
var defineGetter = require('./jsdom/utils').defineGetter;
var defineSetter = require('./jsdom/utils').defineSetter;
var style = require('./jsdom/level2/style');
var features = require('./jsdom/browser/documentfeatures');
var dom = exports.dom = require('./jsdom/living/index').dom;
var createWindow = exports.createWindow = require('./jsdom/browser/index').createWindow;
var request = function(options, cb) {
request = require('request');
return request(options, cb);
}
exports.defaultLevel = dom.living.html;
exports.browserAugmentation = require('./jsdom/browser/index').browserAugmentation;
exports.windowAugmentation = require('./jsdom/browser/index').windowAugmentation;
// Proxy feature functions to features module.
['availableDocumentFeatures',
'defaultDocumentFeatures',
'applyDocumentFeatures'].forEach(function (propName) {
defineGetter(exports, propName, function () {
return features[propName];
});
defineSetter(exports, propName, function (val) {
return features[propName] = val;
});
});
exports.debugMode = false;
defineGetter(exports, 'version', function() {
return pkg.version;
});
exports.level = function (level, feature) {
if(!feature) {
feature = 'core';
}
if (String(level) === '1' || String(level) === '2' || String(level) === '3') {
level = 'level' + level;
}
return require('./jsdom/' + level + '/' + feature).dom[level][feature];
};
exports.jsdom = function (html, level, options) {
options = options || {};
if(typeof level == 'string') {
level = exports.level(level, 'html');
} else {
level = level || exports.defaultLevel;
}
if (!options.url) {
options.url = (module.parent.id === 'jsdom') ?
module.parent.parent.filename :
module.parent.filename;
options.url = options.url.replace(/\\/g, '/');
if (options.url[0] !== '/') {
options.url = '/' + options.url;
}
options.url = 'file://' + options.url;
}
var browser = exports.browserAugmentation(level, options),
doc = (browser.HTMLDocument) ?
new browser.HTMLDocument(options) :
new browser.Document(options);
require('./jsdom/selectors/index').applyQuerySelectorPrototype(level);
features.applyDocumentFeatures(doc, options.features);
if (typeof html === 'undefined' || html === null ||
(html.trim && !html.trim())) {
doc.write('<html><head></head><body></body></html>');
} else {
doc.write(html + '');
}
if (doc.close && !options.deferClose) {
doc.close();
}
// Kept for backwards-compatibility. The window is lazily created when
// document.parentWindow or document.defaultView is accessed.
doc.createWindow = function() {
// Remove ourself
if (doc.createWindow) {
delete doc.createWindow;
}
return doc.parentWindow;
};
return doc;
};
exports.html = function(html, level, options) {
html += '';
// TODO: cache a regex and use it here instead
// or make the parser handle it
var htmlLowered = html.toLowerCase();
// body
if (!~htmlLowered.indexOf('<body')) {
html = '<body>' + html + '</body>';
}
// html
if (!~htmlLowered.indexOf('<html')) {
html = '<html>' + html + '</html>';
}
return exports.jsdom(html, level, options);
};
exports.jQueryify = exports.jsdom.jQueryify = function (window /* path [optional], callback */) {
if (!window || !window.document) { return; }
var args = Array.prototype.slice.call(arguments),
callback = (typeof(args[args.length - 1]) === 'function') && args.pop(),
path,
jQueryTag = window.document.createElement('script');
jQueryTag.className = 'jsdom';
if (args.length > 1 && typeof args[1] === 'string') {
path = args[1];
}
var features = window.document.implementation._features;
window.document.implementation.addFeature('FetchExternalResources', ['script']);
window.document.implementation.addFeature('ProcessExternalResources', ['script']);
window.document.implementation.addFeature('MutationEvents', ['2.0']);
jQueryTag.src = path || 'http://code.jquery.com/jquery-latest.js';
window.document.body.appendChild(jQueryTag);
jQueryTag.onload = function() {
if (callback) {
callback(window, window.jQuery);
}
window.document.implementation._features = features;
};
return window;
};
exports.env = exports.jsdom.env = function () {
var config = getConfigFromArguments(arguments);
var callback = config.done;
if (config.file) {
fs.readFile(config.file, 'utf-8', function (err, text) {
if (err) {
return callback(err);
}
config.html = text;
processHTML(config);
});
} else if (config.html) {
processHTML(config);
} else if (config.url) {
handleUrl(config);
} else if (config.somethingToAutodetect) {
var url = URL.parse(config.somethingToAutodetect);
if (url.protocol && url.hostname) {
config.url = config.somethingToAutodetect;
handleUrl(config.somethingToAutodetect);
} else {
fs.readFile(config.somethingToAutodetect, 'utf-8', function (err, text) {
if (err) {
if (err.code === 'ENOENT' || err.code === 'ENAMETOOLONG') {
config.html = config.somethingToAutodetect;
processHTML(config);
} else {
callback(err);
}
} else {
config.html = text;
config.url = toFileUrl(config.somethingToAutodetect);
processHTML(config);
}
});
}
}
function handleUrl() {
var options = {
uri: config.url,
encoding: config.encoding || 'utf8',
headers: config.headers || {},
proxy: config.proxy || null,
jar: config.jar !== undefined ? config.jar : true
};
request(options, function (err, res, responseText) {
if (err) {
return callback(err);
}
// The use of `res.request.uri.href` ensures that `window.location.href`
// is updated when `request` follows redirects.
config.html = responseText;
config.url = res.request.uri.href;
processHTML(config);
});
}
};
function processHTML(config) {
var callback = config.done;
var options = {
features: config.features,
url: config.url,
parser: config.parser
};
if (config.document) {
options.referrer = config.document.referrer;
options.cookie = config.document.cookie;
options.cookieDomain = config.document.cookieDomain;
}
var window = exports.html(config.html, null, options).createWindow();
var features = JSON.parse(JSON.stringify(window.document.implementation._features));
var docsLoaded = 0;
var totalDocs = config.scripts.length + config.src.length;
var readyState = null;
var errors = [];
if (!window || !window.document) {
return callback(new Error('JSDOM: a window object could not be created.'));
}
window.document.implementation.addFeature('FetchExternalResources', ['script']);
window.document.implementation.addFeature('ProcessExternalResources', ['script']);
window.document.implementation.addFeature('MutationEvents', ['2.0']);
function scriptComplete() {
docsLoaded++;
if (docsLoaded >= totalDocs) {
window.document.implementation._features = features;
errors = errors.concat(window.document.errors || []);
if (errors.length === 0) {
errors = null;
}
process.nextTick(function() {
callback(errors, window);
});
}
}
function handleScriptError(e) {
if (!errors) {
errors = [];
}
errors.push(e.error || e.message);
// nextTick so that an exception within scriptComplete won't cause
// another script onerror (which would be an infinite loop)
process.nextTick(scriptComplete);
}
if (config.scripts.length > 0 || config.src.length > 0) {
config.scripts.forEach(function (scriptSrc) {
var script = window.document.createElement('script');
script.className = 'jsdom';
script.onload = scriptComplete;
script.onerror = handleScriptError;
script.src = scriptSrc;
try {
// protect against invalid dom
// ex: http://www.google.com/foo#bar
window.document.documentElement.appendChild(script);
} catch (e) {
handleScriptError(e);
}
});
config.src.forEach(function (scriptText) {
var script = window.document.createElement('script');
script.onload = scriptComplete;
script.onerror = handleScriptError;
script.text = scriptText;
window.document.documentElement.appendChild(script);
window.document.documentElement.removeChild(script);
});
} else {
scriptComplete();
}
}
function getConfigFromArguments(args, callback) {
var config = {};
if (typeof args[0] === 'object') {
var configToClone = args[0];
Object.keys(configToClone).forEach(function (key) {
config[key] = configToClone[key];
});
} else {
var stringToAutodetect = null;
Array.prototype.forEach.call(args, function (arg) {
switch (typeof arg) {
case 'string':
config.somethingToAutodetect = arg;
break;
case 'function':
config.done = arg;
break;
case 'object':
if (Array.isArray(arg)) {
config.scripts = arg;
} else {
extend(config, arg);
}
break;
}
});
}
if (!config.done) {
throw new Error('Must pass a "done" option or a callback to jsdom.env.');
}
if (!config.somethingToAutodetect && !config.html && !config.file && !config.url) {
throw new Error('Must pass a "html", "file", or "url" option, or a string, to jsdom.env');
}
config.scripts = ensureArray(config.scripts);
config.src = ensureArray(config.src);
config.features = config.features || {
FetchExternalResources: false,
ProcessExternalResources: false,
SkipExternalResources: false
};
if (!config.url && config.file) {
config.url = toFileUrl(config.file);
}
return config;
}
function ensureArray(value) {
var array = value || [];
if (typeof array === 'string') {
array = [array];
}
return array;
}
function extend(config, overrides) {
Object.keys(overrides).forEach(function (key) {
config[key] = overrides[key];
});
}