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Use a local version of netsniff.js, from PhantomJS
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# [heedless](https://github.com/joelpurra/heedless/) | ||
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Download [HAR files](http://www.softwareishard.com/blog/har-12-spec/) using [PhantomJS](http://phantomjs.org/) for the front pages of domains. | ||
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## Original purpose | ||
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Built as a component in [Joel Purra's master's thesis](http://joelpurra.com/projects/masters-thesis/) research, where downloading lots of front pages in the .se top level domain zone was required to analyze their content and use of internal/external resources. | ||
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## Thanks | ||
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- `netsniff.js` is based on the [example with the same name](https://github.com/ariya/phantomjs/blob/master/examples/netsniff.js) in [PhantomJS](http://phantomjs.org/), created by Ariya Hidayat, release under the [BSD 3-Clause "New" or "Revised" License (BSD-3-Clause)](http://opensource.org/licenses/BSD-3-Clause). | ||
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Copyright (c) 2014 [Joel Purra](http://joelpurra.com/). Released under [GNU General Public License version 3.0 (GPL-3.0)](https://www.gnu.org/licenses/gpl.html). |
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if (!Date.prototype.toISOString) { | ||
Date.prototype.toISOString = function () { | ||
function pad(n) { return n < 10 ? '0' + n : n; } | ||
function ms(n) { return n < 10 ? '00'+ n : n < 100 ? '0' + n : n } | ||
return this.getFullYear() + '-' + | ||
pad(this.getMonth() + 1) + '-' + | ||
pad(this.getDate()) + 'T' + | ||
pad(this.getHours()) + ':' + | ||
pad(this.getMinutes()) + ':' + | ||
pad(this.getSeconds()) + '.' + | ||
ms(this.getMilliseconds()) + 'Z'; | ||
} | ||
} | ||
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function createHAR(address, title, startTime, resources) | ||
{ | ||
var entries = []; | ||
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resources.forEach(function (resource) { | ||
var request = resource.request, | ||
startReply = resource.startReply, | ||
endReply = resource.endReply; | ||
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if (!request || !startReply || !endReply) { | ||
return; | ||
} | ||
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// Exclude Data URI from HAR file because | ||
// they aren't included in specification | ||
if (request.url.match(/(^data:image\/.*)/i)) { | ||
return; | ||
} | ||
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entries.push({ | ||
startedDateTime: request.time.toISOString(), | ||
time: endReply.time - request.time, | ||
request: { | ||
method: request.method, | ||
url: request.url, | ||
httpVersion: "HTTP/1.1", | ||
cookies: [], | ||
headers: request.headers, | ||
queryString: [], | ||
headersSize: -1, | ||
bodySize: -1 | ||
}, | ||
response: { | ||
status: endReply.status, | ||
statusText: endReply.statusText, | ||
httpVersion: "HTTP/1.1", | ||
cookies: [], | ||
headers: endReply.headers, | ||
redirectURL: "", | ||
headersSize: -1, | ||
bodySize: startReply.bodySize, | ||
content: { | ||
size: startReply.bodySize, | ||
mimeType: endReply.contentType | ||
} | ||
}, | ||
cache: {}, | ||
timings: { | ||
blocked: 0, | ||
dns: -1, | ||
connect: -1, | ||
send: 0, | ||
wait: startReply.time - request.time, | ||
receive: endReply.time - startReply.time, | ||
ssl: -1 | ||
}, | ||
pageref: address | ||
}); | ||
}); | ||
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return { | ||
log: { | ||
version: '1.2', | ||
creator: { | ||
name: "PhantomJS", | ||
version: phantom.version.major + '.' + phantom.version.minor + | ||
'.' + phantom.version.patch | ||
}, | ||
pages: [{ | ||
startedDateTime: startTime.toISOString(), | ||
id: address, | ||
title: title, | ||
pageTimings: { | ||
onLoad: page.endTime - page.startTime | ||
} | ||
}], | ||
entries: entries | ||
} | ||
}; | ||
} | ||
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var page = require('webpage').create(), | ||
system = require('system'); | ||
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if (system.args.length === 1) { | ||
console.log('Usage: netsniff.js <some URL>'); | ||
phantom.exit(1); | ||
} else { | ||
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page.address = system.args[1]; | ||
page.resources = []; | ||
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page.onLoadStarted = function () { | ||
page.startTime = new Date(); | ||
}; | ||
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page.onResourceRequested = function (req) { | ||
page.resources[req.id] = { | ||
request: req, | ||
startReply: null, | ||
endReply: null | ||
}; | ||
}; | ||
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page.onResourceReceived = function (res) { | ||
if (res.stage === 'start') { | ||
page.resources[res.id].startReply = res; | ||
} | ||
if (res.stage === 'end') { | ||
page.resources[res.id].endReply = res; | ||
} | ||
}; | ||
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page.open(page.address, function (status) { | ||
var har; | ||
if (status !== 'success') { | ||
console.log('FAIL to load the address'); | ||
phantom.exit(1); | ||
} else { | ||
page.endTime = new Date(); | ||
page.title = page.evaluate(function () { | ||
return document.title; | ||
}); | ||
har = createHAR(page.address, page.title, page.startTime, page.resources); | ||
console.log(JSON.stringify(har, undefined, 4)); | ||
phantom.exit(); | ||
} | ||
}); | ||
} |