juust ~ php oddities

proxies !

juust | 21/02/2009

I got a site banned at Google so I got pissed and took a script from the blackbox @ digerati marketing to scrape proxy addresses, wired a database and curl into it, so now it scrapes proxies, random picks a proxy, prunes dead proxies and returns data.

Basic, it uses anonymous (level 2) proxies, but it works. You can check the source here

/* (mysql table)
CREATE TABLE IF NOT EXISTS `serp_proxies` (
`id` int(11) NOT NULL auto_increment,
`ip` text NOT NULL,
`port` text NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
*/
//initialize database class, replace with own code
include('init.php');
//main class
$p=new MyProxies;
//do I have proxies in the database ?
//if not, get some and store them
if($p->GetCount() < 1) {
$p->GetSomeAir(1);
$p->store2database();
}
//pick one
$p->RandomProxy();
//get the page
$p->ThisProxy->DoRequest('http://www.domain.com/robots.txt');
//error handling
if($p->ThisProxy->ProxyError > 0) {
//7 no connect
//28 timed out
//52 empty reply
//if it is dead, doesn't allow connections : prune it
if($p->ThisProxy->ProxyError==7) $p->DeleteProxy($p->ThisProxy->proxy_ip);
if($p->ThisProxy->ProxyError==52) $p->DeleteProxy($p->ThisProxy->proxy_ip);
}
//you could loop back until you get a 0-error proxy, but that ain't the point
//give me the content
echo $p->ThisProxy->Content;
Class MyProxies {
var $Proxies = array();
var $ThisProxy;
var $MyCount;
//picks a random proxy from the database
function RandomProxy() {
global $serpdb;
$offset_result = $serpdb->query("SELECT FLOOR(RAND() * COUNT(*)) AS `offset` FROM `serp_proxies`");
$offset_row = mysql_fetch_object($offset_result);
$offset = $offset_row->offset;
$result = $serpdb->query("SELECT * FROM `serp_proxies` LIMIT $offset, 1" );
while($row=mysql_fetch_assoc($result)) {
//make instance of Proxy, with proxy_host ip and port
$this->ThisProxy = new Proxy($row['ip'].':'.$row['port']);
$this->ThisProxy->proxy_ip = $row['ip'];
$this->ThisProxy->proxy_port = $row['port'];
break;
}
}
//visit the famous russian site
function GetSomeAir($pages) {
for($index=0; $index< $pages; $index++)
{
$pageno = sprintf("%02d",$index+1);
$page_url = "http://www.samair.ru/proxy/proxy-" . $pageno . ".htm";
$page_html = @file_get_contents($page_url);
//get rid of the crap and extract the proxies
preg_match("/<tr><td>(.*)< \/td>< \/tr>/", $page_html, $matches);
$txt = $matches[1];
$main = split('</td><tr><td>', $txt);
for($x=0;$x<count ($main);$x++) {
$arr = split('</td><td>', $main[$x]);
$this->Proxies[] = split(':', $arr[0]);
}
}
}
//store the retrieved proxies (stored in this->Proxies) in the database
function store2database() {
global $serpdb;
foreach($this->Proxies as $p) {
$result = $serpdb->query("SELECT * FROM serp_proxies WHERE ip='".$p[0]."'");
if(mysql_num_rows($result)<1) $serpdb->query("INSERT INTO serp_proxies (`ip`, `port`) VALUES ('".$p[0]."', '".$p[1]."')");
}
$serpdb->query("DELETE FROM serp_proxies WHERE `ip`=''");
}
function DeleteProxy($ip) {
global $serpdb;
$serpdb->query("DELETE FROM serp_proxies WHERE `ip`='".$ip."'");
}
function GetCount()
{
//use this to check how many proxies there are in the database
global $serpdb;
$this->MyCount = mysql_num_rows($serpdb->query("SELECT * FROM `serp_proxies`"));
return $this->MyCount;
}
}
Class Proxy {
var $proxy_ip;
var $proxy_port;
var $proxy_host;
var $proxy_auth;
var $ch;
var $Content;
var $USERAGENT = "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)";
var $ProxyError = 0;
var $ProxyErrorMsg = '';
var $TimeOut=3;
var $IncludeHeaders = 0;
function Proxy($host, $username='', $pwd='') {
//initialize class, set host
$this->proxy_host = $host;
if (strlen($username) > 0 || strlen($pwd) > 0) {
$this->proxy_auth = $username.":".$pwd;
}
}
function CURL_PROXY($cc) {
if (strlen($this->proxy_host) > 0) {
curl_setopt($cc, CURLOPT_PROXY, $this->proxy_host);
if (strlen($this->proxy_auth) > 0)
curl_setopt($cc, CURLOPT_PROXYUSERPWD, $this->proxy_auth);
}
}
function DoRequest($url) {
$this->ch = curl_init();
curl_setopt($this->ch, CURLOPT_URL,$url);
$this->CURL_PROXY($this->ch);
curl_setopt($this->ch, CURLOPT_HEADER, $this->IncludeHeaders); // baca header
curl_setopt($this->ch, CURLOPT_USERAGENT, $this->USERAGENT);
curl_setopt($this->ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($this->ch, CURLOPT_TIMEOUT, $this->TimeOut);
$this->Content = curl_exec($this->ch);
//if an error occurs, store the number and message
if (curl_errno($this->ch))
{
$this->ProxyError = curl_errno($this->ch);
$this->ProxyErrorMsg = curl_error($this->ch);
}
}
}
</td></count></td></tr>

There is not much to say about it, just a rough outline. I would prefer elite level 1 proxies but for now it will have to do.

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Categories: php, seo tips and tricks
Tags: php, scrape, seo tips and tricks
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RedHat Seo : scraper auto-blogging

juust | 26/12/2008

Just give us your endpoint and we’ll take it from there, sparky!

I was going to make one of these tools to scrape google and conjur a full blog out of nowhere, as Christmas special, RedHat Seo. The rough sketch has arrived , far from perfect, but it does produce a blog and don’t even look too shabby. I scraped a small batch of posts off of blogs, keeping the links intact and adding a tribute links. I hope they will pardon me for it.

structure

I use three main classes,

BlogMaker	the application
Target	the blogs you aim for
WPContent	the scraped goodies

…and two support classes

SerpResult	scraped urls
Custom_RPC	a simple rpc-poster

Target blogs have three texts,

file	contents	maintenance
blog categories	category you post under	manual
blog tags	tags you list on the blog	manual
blog urls	urls already used for the blog	system

routine

The BlogMaker class grabs a result list (up to 1000 urls per phrase) from Google, extracts the urls and stores them in SerpResult, scrapes the urls and extracts the entry divs, stores div-entries in the WPContent class (that has some basic functions to sanitize the text), and uses the BlogTarget-definitions to post it up blogs with xml-rpc.

usage

My highlighter tends to mess up text with div markers in it, copying off the blog may not work,
the full text source (about 500 lines) is overhere. Underneath I’ll list the main program loop :

//make main instance
$Blog = new BlogMaker("keyword");
//define a target blog, you can define multiple blogs and refer with code
//then add rpc-url, password and user
//and for every target blog three text-files
$T=$Blog->AddTarget(
'blogcode',
'http://my.blog.com/xmlrpc.php',
'password',
'user',
'keyword.categories.txt',
'keyword.tags.txt',
'keyword.urls.txt'
);
//read the tags, cats and url text files stored on the server
//all retrieved urls are tested, if the target blog already has that
//scraped url, it is discarded.
$T->CSV_GetTags();
$T->List_GetCats();
$T->ReadURL();
//grab the google result list
//use params (pages, keywords) to specify search
$Blog->GoogleResults();
$a=0;
foreach($Blog->Results as $BlogUrl) {
$a++;
echo $BlogUrl->url;
//see if the url isnt used yet
if($T->checkURL(trim($BlogUrl->url))!=true) {
echo '…checking ';
flush();
//if not used, get the source
$BlogUrl->scrape();
//check for divs marked "entry", if they arent there, check "post"
//some blogs use other indications for the content
//but entry and post cover 40%
$entries = $BlogUrl->get_entries();
if(count($entries)<1) {
echo 'no entries…';
flush();
$entries = $BlogUrl->get_posts();
if(count($entries)<1) {
echo 'no posts either…';
//if no entry-post div, mark url as done
$T->RegisterURL($BlogUrl->url);
}
}
$ct=0;
foreach($BlogUrl->WpContentPieces as $WpContent) {
//in the get_entries/get_post function the fragments are stored
//as wpcontent
$ct++;
if($WpContent->judge(2000, 200, 5)) {
$WpContent->tribute(); //add tribute link
$T->settags($WpContent->divcontent); //add tags
$T->postCustomRPC($WpContent->title, $WpContent->divcontent, 1); //1=publish, 0=draft
$T->RegisterURL($WpContent->url); //register use of url
usleep(20000000); //20 seconds break, for sitemapping
}
}
}
}

notes

xml-rpc needs to be activated explicitly on the wordpress dashboard under settings/writing.
categories must be present in the blog
url file must be writeable by the server (777)

It seems wordpress builds the sitemap as background process, the standard google xml sitemap plugin wil attempt to build in the cache (takes anywhere between 2 and 10 seconds), and apart from building a sitemap the posts also get pinged around. Giving the install 10 to 20 seconds between posts allows for all the hooked in functions to be completed.

period

That’s about all,
consider it gpl, I added some comments in the source but I will not develop this any further. A mysql backed blogfarm tool (euphemistically called ‘publishing tool’) is more interesting, besides, I am off to the wharves to do some painting.

if you use it, send some feedback,
merry christmas dogheads

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Categories: google, seo, seo tips and tricks, tool, wordpress, xml-rpc
Tags: google, scrape, seo, seo tips and tricks, tool, wordpress, xml-rpc
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google trends III

juust | 25/12/2008

How to get the urls and snippets from the Google Trends details page. The news articles on the details page are listed with an ‘Ajax’ call, they are not sent to the browser in the html source. No easy way to scrape that.

The blog articles are pretty straight forward : first the ugly fast way :

$mytitle='manuel benitez';
$mydate=''; //2008-12-24
$html=file_get_contents('http://www.google.com/trends/hottrends?q='.urlencode($mytitle).'&date=&sa=X');
$start = strpos($html, '<div class="gsc-resultsbox-visible">');
$end = strpos($html, '<div class="gsc-trailing-more-results">');
$content = substr($html, $start, $end-$start);
echo $content;
</div></div>

That returns the blog snippets, ugly. The other way : regular pattern matching : you can grab the divs that each content item has, marked with

div class=”gs-title”
div class=”gs-relativePublishedDate”
div class=”gs-snippet”
div class=”gs-visibleUrl”

from the html-source and organize them as “Content” array, after which you can list the content items with your own markup or store them in a database.

//I assume $mytitle is taken from the $_GET array.
//array 'Content' with it's members
Class Content {
var $id;
var $title;
var $pubdate;
var $snippet;
var $url;
public function __construct($id) {
$this->id=$id;
}
}
//grab the source from the google page
$html=file_get_contents('http://www.google.com/trends/hottrends?q='.urlencode($mytitle).'&date=&sa=X');
//cut out the part I want
$start = strpos($html, '<div class="gsc-resultsbox-visible">');
$end = strpos($html, '<div class="gsc-trailing-more-results">');
$content = substr($html, $start, $end-$start);
//grab the divs that contain title, publish date, snippet and url with regular pattern match
preg_match_all('!<div class=\”gs-title\”>.*?< \/div>!si', $html, $titles);
preg_match_all('!<div class=\”gs-relativePublishedDate\”>.*?< \/div>!si', $html, $pubDates);
preg_match_all('!<div class=\”gs-snippet\”>.*?< \/div>!si', $html, $snippets);
preg_match_all('!<div class=\”gs-visibleUrl\”>.*?< \/div>!si', $html, $urls);
$Contents = array();
//organize them under Content;
$count=0;
foreach($titles[0] as $title) {
//make a new instance of Content;
$Contents[] = new Content($count);
//add title
$Contents[$count]->title=$title;
$count++;
}
$count=0;
foreach($pubDates[0] as $pubDate) {
//add publishing date (contains some linebreak, remove it with strip_tags)
$Contents[$count]->pubdate=strip_tags($pubDate);
$count++;
}
$count=0;
foreach($snippets[0] as $snippet) {
//add snippet
$Contents[$count]->snippet=$snippet;
$count++;
}
$count=0;
foreach($urls[0] as $url) {
//add display url
$Contents[$count]->url=$url;
$count++;
}
//leave $count as is, the number of content-items with a 0-base array
//add rel=nofollow to links to prevent pagerank assignment to blogs
for($ct=0;$ct< $count;$ct++) {
$Contents[$ct]->url = preg_replace('/ target/', ' rel="nofollow" target', $Contents[$ct]->url);
$Contents[$ct]->title = preg_replace('/ target/', ' rel="nofollow" target', $Contents[$ct]->title);
}
//its complete, list all content-items with some markup
for($ct=0;$ct< $count;$ct++) {
echo '<h3>'.$Contents[$ct]->title.'';
echo '<p><strong>'.$Contents[$ct]->pubdate.'</strong>:<em>'.$Contents[$ct]->snippet.'</em></p>';
echo $Contents[$ct]->url.'<br />';
}
</div></div></div></div></div></div>

It ain’t perfect, but it works. the highlighter I use gets a bit confused about the preg_match_all statements containing unclosed div’s, so copying the code of the blog may not work, a text file with the source code is on trends.trismegistos.net. I added it that snippet to trendinfo.php, works fine.