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var http = require('http'); | |
var express = require('express'); | |
var router = express.Router(); | |
/* GET users listing. */ | |
router.get('/', function(req, res) { | |
var request = require('request'); | |
var url = req.query.url; | |
// If our URL doesn't contain a protocol or | |
// ending slash, add it here | |
if (url.indexOf('://') === -1) { | |
url = 'http://' + url; | |
if (!url.match(/\/$/)) { | |
url += '/'; | |
} | |
} | |
var page = request.get(url, function(error, response, body) { | |
if (!error) { | |
var proxied = proxy(body, url); | |
res.header('Cache-Control', 'no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0'); | |
res.send(proxied); | |
} | |
}); | |
}); | |
function proxy(html, url) { | |
var cheerio = require('cheerio'); | |
var $ = cheerio.load(html); | |
var content = ''; | |
var base = '<base href=\'' + url + '\' />\n'; | |
$('head').append(base); | |
$('img[src^="public"]').each(function() { | |
$(this).attr('href', url + '/' + $(this).attr('href')); | |
}); | |
$('a:not([href^="http://"])' + | |
':not([href^="https://"])' + | |
':not([href^="//"])' + | |
':not([href^="javascript:"])') | |
.each(function() { | |
$(this).attr('href', url + $(this).attr('href')); | |
}); | |
$('img:not([src^="http://"])' + | |
':not([src^="https://"])' + | |
':not([src^="//"])') | |
.each(function() { | |
$(this).attr('src', url + $(this).attr('src')); | |
}); | |
$('link:not([href^="http://"])' + | |
':not([href^="https://"])' + | |
':not([href^="//"])') | |
.each(function() { | |
$(this).attr('href', url + $(this).attr('href')); | |
}); | |
$('script[src]:not([src^="http://"])' + | |
':not([src^="https://"])' + | |
':not([src^="//"])') | |
.each(function() { | |
$(this).attr('src', url + $(this).attr('src')); | |
}); | |
if (process.env.NODE_ENV === 'production') { | |
var mavenjs = '<script id="prod"></script>\n'; | |
$('a').each(function() { | |
$(this).attr('href', 'http://example.com/proxy?url=' + $(this).attr('href')); | |
}); | |
} | |
if (process.env.NODE_ENV === 'development') { | |
var mavenjs = '<script id="dev"></script>\n'; | |
$('a').each(function() { | |
$(this).attr('href', 'http://localhost:3000/proxy?url=' + $(this).attr('href')); | |
}); | |
} | |
$('body').append(mavenjs); | |
return $.html(); | |
}; | |
module.exports = router; |
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