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server.js
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server.js
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var fs = require('fs'),
url = require('url'),
querystring = require('querystring'),
connect = require('connect'),
Inliner = require('inliner'),
port = parseInt(process.argv[2], 10) || 80,
inliners = {};
var routes = function (app) {
app.get("/progress", function (req, res) {
var job = req.query.job;
if (job && inliners[job] !== undefined) {
inliners[job].inliner.active = true;
res.writeHead(200, {'Content-Type': 'text/event-stream', 'Cache-Control': 'no-cache'});
res.write('id:0\n\n');
inliners[job].inliner.on('progress', function (status) {
res.write('data: ' + status + '\n\n');
});
inliners[job].inliner.on('jobs', function (total) {
res.write('data: jobs ' + total + '\n\n');
});
inliners[job].inliner.on('done', function (url) {
fs.stat(__dirname + '/public' + url, function (err, stat) {
var size = '';
if (!err) {
size = ' ' + (0|stat.size / 1024) + 'K';
}
res.write('data: complete ' + url + size + '\n\n');
delete inliners[job];
});
});
inliners[job].inliner.on('error', function (error) {
res.write('data: error ' + error + '\n\n');
});
if (inliners[job].inliner.dirty) {
res.write('data: error url could not be requested\n\n');
}
} else {
res.writeHead(404);
res.end('Job number required');
}
});
app.get('/inline', function (req, res) {
if (req.query.url) {
if (req.query.url.indexOf('http') !== 0) {
req.query.url = 'http://' + req.query.url;
}
var job = connect.utils.uid(10);
console.log((new Date).toUTCString() + ' ' + req.query.url + ' (' + job + ')');
var options = Inliner.defaults();
if (req.query.nocompress) {
options.compressCSS = false
options.collapseWhitespace = false;
}
if (req.query.noimages) {
options.images = false;
}
inliners[job] = {
inliner: new Inliner(req.query.url, options)
};
inliners[job].inliner.on('end', function (html) {
if (html) {
fs.writeFile(__dirname + '/public/jobs/' + job + '.html', html, function (err) {
if (err) {
inliners[job].inliner.emit('error', err);
} else {
inliners[job].inliner.emit('done', '/jobs/' + job + '.html');
}
});
} else {
// this event fires before the event stream is setup, so we
// need to flag the job as broken, and when the stream opens
// send back that the job failed.
if (inliners[job].inliner.active) {
// emit event
inliners[job].inliner.emit('error', 'url could not be requested');
} else {
inliners[job].inliner.dirty = true;
}
}
});
if (req.headers['x-requested-with'] == 'XMLHttpRequest') {
// xhr
res.writeHead(200, { 'content-type': 'application/json' });
res.end(JSON.stringify({ job: job }));
// res.end(JSON.stringify({ error: 'url not defined' }));
} else {
// regular
inliners[job].inliner.on('done', function (url) {
res.writeHead(200, { 'content-type': 'text/html' });
res.end('<a href="' + url + '">' + url + '</a>');
});
inliners[job].inliner.on('error', function (err) {
res.writeHead(200, { 'content-type': 'text/html' });
res.end('<p>Failed to complete job: ' + err + '</p>');
});
}
} else {
res.writeHead(200, { 'content-type': 'text/html' });
res.end('No url provided.');
}
});
};
connect.createServer(
function (req, res, next) {
var query = {};
if (req.url.indexOf('?') !== -1) {
query = querystring.parse(url.parse(req.url).query);
}
req.query = query;
next();
},
function (req, res, next) {
if (req.url.indexOf('/jobs/') === 0) {
if (~req.url.indexOf('..')) {
next(new Error('Forbidden'));
} else {
var path = __dirname + '/public' + req.url;
fs.stat(path, function (err, stat) {
if (err) {
return next(err);
}
if (stat.isDirectory()) {
return next(new Error('Cannot Transfer Directory'));
}
res.setHeader('content-length', stat.size);
res.setHeader('content-type', 'application/octet-stream');
res.setHeader('content-disposition', 'attachment; filename=' + req.url.split('/').pop());
var stream = fs.createReadStream(path);
stream.pipe(res);
});
}
} else {
next();
}
},
connect.static(__dirname + '/public'),
connect.router(routes)
).listen(port);