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simple google scraper test with phantomjs
var Gscrape = function(domain) {
var domain = domain || 'com',
searchURL = 'http://www.google.' + domain + '/search?q=',
searchInProgress = false,
cache = {
error: '',
success: true,
pages: 0,
urls: {}
};
var caughtURL = function(page) {
return page.evaluate(function(){
if (window.location.host.substring(0, 5) === 'sorry') {
return window.location.href;
} else {
return false;
}
});
};
var search = function(address, callback) {
++cache.pages;
var page = new WebPage();
page.onConsoleMessage = function(message) {
console.log(message);
};
page.onLoadFinished = function(status) {
if (status === 'success' && caughtURL(page)) {
cache.success = false;
cache.error = 'Google has caught you! Check this url: ' + caughtURL(page);
callback();
return;
}
if (status !== 'success') {
cache.success = false;
cache.error = 'Failed to load address: ' + address;
callback();
return;
}
var next = page.evaluate(function(){
var a = document.getElementById('pnnext');
return a ? a.href : false;
});
var links = page.evaluate(function(){
var a = document.querySelectorAll('a.l'),
arr = [];
for (var i = 0; i < a.length; i++)
if (a[i].href) arr.push(a[i].href);
return arr;
});
for (i in links) {
cache.urls[links[i]] = null;
};
if (next) {
// delay next search every 10 pages 20 seconds else 1 second.
setTimeout(function(){
search(next, callback);
}, cache.pages % 10 === 0 ? 20000 : 1000);
} else {
callback();
}
};
page.open(address);
};
var api = {
reset: function() {
cache.error = '';
cache.success = true;
cache.pages = 0;
cache.urls = [];
},
search: function(query, callback) {
if (searchInProgress) {
console.log('Another search in progress. Please wait for the current search to end!');
return false;
}
searchInProgress = true;
var startTime = Date.now();
search(searchURL + query, function(){
searchInProgress = false;
var results = {};
for (i in cache) {
if (i == 'urls') {
results.urls = [];
for (x in cache.urls) results.urls.push(x);
} else {
results[i] = cache[i];
}
}
callback(results, Date.now() - startTime);
});
}
};
return api;
};
if (phantom.args.length < 1) {
console.error('Usage: gscrape.js [domain] <query>');
phantom.exit(1);
} else {
var domain, query;
if (phantom.args.length > 1) {
domain = phantom.args[0];
query = phantom.args[1]; }
else {
domain = 'com';
query = phantom.args[0];
}
var gscrape = new Gscrape(domain);
gscrape.search(query, function(result, time) {
console.log();
console.log('--------------------------------');
console.log('Total pages scanned: ' + result.pages );
console.log('Total urls found: ' + result.urls.length );
console.log('Time taken: ' + (time / 1000) + ' seconds');
console.log('--------------------------------');
if (result.success) {
for (i in result.urls) {
console.log(result.urls[i]);
}
} else {
console.log();
console.log('Error!!');
console.log(result.error);
console.log('--------------------------------');
}
phantom.exit();
});
}
@arkste
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arkste commented Apr 18, 2013

Just add a User Agent in #26.

@enapupe
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enapupe commented May 8, 2014

Great.. I small tweak in the anchor selector and it still works.

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