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// vim: set et sw=2 ts=2 sts=2 ff=unix fenc=utf8: | ||
// Author: Binux<[email protected]> | ||
// http://binux.me | ||
// Created on 2014-10-29 22:12:14 | ||
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var port, server, service, | ||
wait_before_end = 1000, | ||
historyLength = 20, | ||
system = require('system'), | ||
webpage = require('webpage'); | ||
var requestList = []; | ||
function status(response) { | ||
response.statusCode = 200; | ||
var payload = {'status': 'OK', 'history': requestList}; | ||
payload = JSON.stringify(payload, null, 4); | ||
response.headers = { | ||
'Cache': 'no-cache', | ||
'Content-Type': 'application/json', | ||
'Content-Length': payload.length | ||
}; | ||
response.write(payload); | ||
response.closeGracefully(); | ||
} | ||
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if (system.args.length !== 2) { | ||
console.log('Usage: phantomjs_fetcher.js <portnumber>'); | ||
phantom.exit(1); | ||
} else { | ||
port = system.args[1]; | ||
server = require('webserver').create(); | ||
// console.debug = function(){}; | ||
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service = server.listen(port, { | ||
'keepAlive': false | ||
}, function (request, response) { | ||
// phantom.clearCookies(); | ||
console.log(JSON.stringify(request)); | ||
// check method | ||
if (request.method == 'GET') { | ||
status(response); | ||
return; | ||
} | ||
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var first_response = null, | ||
finished = false, | ||
page_loaded = false, | ||
start_time = Date.now(), | ||
end_time = null, | ||
script_executed = false, | ||
script_result = null; | ||
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var fetch = JSON.parse(request.post); | ||
// console.log(JSON.stringify(fetch)); | ||
if (requestList.length > historyLength) { | ||
requestList.shift(); | ||
} | ||
requestList.push(fetch); | ||
// create and set page | ||
var page = webpage.create(); | ||
if (fetch.proxy) { | ||
if (fetch.proxy.indexOf('://') == -1) { | ||
fetch.proxy = 'http://' + fetch.proxy | ||
} | ||
page.setProxy(fetch.proxy); | ||
} | ||
page.onConsoleMessage = function (msg) { | ||
// console.log('console: ' + msg); | ||
}; | ||
page.viewportSize = { | ||
width: fetch.js_viewport_width || 1024, | ||
height: fetch.js_viewport_height || 768 * 3 | ||
}; | ||
if (fetch.headers) { | ||
fetch.headers['Accept-Encoding'] = undefined; | ||
fetch.headers['Connection'] = undefined; | ||
fetch.headers['Content-Length'] = undefined; | ||
} | ||
if (fetch.headers && fetch.headers['User-Agent']) { | ||
page.settings.userAgent = fetch.headers['User-Agent']; | ||
} | ||
// this may cause memory leak: https://github.com/ariya/phantomjs/issues/12903 | ||
page.settings.loadImages = fetch.load_images === undefined ? true : fetch.load_images; | ||
page.settings.resourceTimeout = fetch.timeout ? fetch.timeout * 1000 : 20 * 1000; | ||
if (fetch.headers) { | ||
page.customHeaders = fetch.headers; | ||
} | ||
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// add callbacks | ||
page.onInitialized = function () { | ||
if (!script_executed && fetch.js_script && fetch.js_run_at === "document-start") { | ||
script_executed = true; | ||
console.log('running document-start script.'); | ||
page.includeJs("http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js", | ||
function () { | ||
script_result = page.evaluateJavaScript(fetch.js_script); | ||
console.log('=====' + script_result); | ||
} | ||
); | ||
} | ||
}; | ||
page.onLoadFinished = function (status) { | ||
page_loaded = true; | ||
if (!script_executed && fetch.js_script && fetch.js_run_at !== "document-start") { | ||
script_executed = true; | ||
console.log('running document-end script.'); | ||
page.includeJs("http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js", | ||
function () { | ||
script_result = page.evaluateJavaScript(fetch.js_script); | ||
console.log('=====' + script_result); | ||
} | ||
); | ||
} | ||
console.debug("waiting " + wait_before_end + "ms before finished."); | ||
end_time = Date.now() + wait_before_end; | ||
setTimeout(make_result, wait_before_end + 10, page); | ||
}; | ||
page.onResourceRequested = function (request) { | ||
console.debug("Starting request: #" + request.id + " [" + request.method + "]" + request.url); | ||
end_time = null; | ||
}; | ||
page.onResourceReceived = function (response) { | ||
console.debug("Request finished: #" + response.id + " [" + response.status + "]" + response.url); | ||
if (first_response === null && response.status != 301 && response.status != 302) { | ||
first_response = response; | ||
} | ||
if (page_loaded) { | ||
console.debug("waiting " + wait_before_end + "ms before finished."); | ||
end_time = Date.now() + wait_before_end; | ||
setTimeout(make_result, wait_before_end + 10, page); | ||
} | ||
}; | ||
page.onResourceError = page.onResourceTimeout = function (response) { | ||
console.info("Request error: #" + response.id + " [" + response.errorCode + "=" + response.errorString + "]" + response.url); | ||
if (first_response === null) { | ||
first_response = response; | ||
} | ||
if (page_loaded) { | ||
console.debug("waiting " + wait_before_end + "ms before finished."); | ||
end_time = Date.now() + wait_before_end; | ||
setTimeout(make_result, wait_before_end + 10, page); | ||
} | ||
}; | ||
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// make sure request will finished | ||
setTimeout(make_result, page.settings.resourceTimeout + 100, page); | ||
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// send request | ||
page.open(fetch.url, { | ||
operation: fetch.method, | ||
data: fetch.data, | ||
}); | ||
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// make response | ||
function make_result(page) { | ||
if (finished) { | ||
return; | ||
} | ||
if (Date.now() - start_time < page.settings.resourceTimeout) { | ||
if (!!!end_time) { | ||
return; | ||
} | ||
if (end_time > Date.now()) { | ||
setTimeout(make_result, Math.min(Date.now() - end_time, 100), page); | ||
return; | ||
} | ||
} | ||
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var result = {}; | ||
try { | ||
result = _make_result(page); | ||
page.close(); | ||
finished = true; | ||
console.log("[" + result.status_code + "] " + result.orig_url + " " + result.time) | ||
} catch (e) { | ||
result = { | ||
orig_url: fetch.url, | ||
status_code: 599, | ||
error: e.toString(), | ||
content: page.content || "", | ||
headers: {}, | ||
url: page.url || fetch.url, | ||
cookies: {}, | ||
time: (Date.now() - start_time) / 1000, | ||
js_script_result: null, | ||
save: fetch.save | ||
} | ||
} | ||
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var body = JSON.stringify(result, null, 2); | ||
response.writeHead(200, { | ||
'Cache': 'no-cache', | ||
'Content-Type': 'application/json', | ||
}); | ||
response.write(body); | ||
response.closeGracefully(); | ||
} | ||
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function _make_result(page) { | ||
if (first_response === null) { | ||
throw "Timeout before first response."; | ||
} | ||
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var cookies = {}; | ||
page.cookies.forEach(function (e) { | ||
cookies[e.name] = e.value; | ||
}); | ||
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var headers = {}; | ||
if (first_response.headers) { | ||
first_response.headers.forEach(function (e) { | ||
headers[e.name] = e.value; | ||
}); | ||
} | ||
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return { | ||
orig_url: fetch.url, | ||
status_code: first_response.status || 599, | ||
error: first_response.errorString, | ||
content: page.content, | ||
headers: headers, | ||
url: page.url, | ||
cookies: cookies, | ||
time: (Date.now() - start_time) / 1000, | ||
js_script_result: script_result, | ||
save: fetch.save | ||
} | ||
} | ||
}); | ||
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if (service) { | ||
console.log('phantomjs fetcher running on port ' + port); | ||
} else { | ||
console.log('Error: Could not create web server listening on port ' + port); | ||
phantom.exit(); | ||
} | ||
} |