<?php
/**
* This file contains the googledancer class that checks if Google is "dancing".
*
* @package googledancer
*/
/**
* googledancer class
*
* This class allows to check if Google is "dancing".
*
* @package googledancer
* @author Setec Astronomy
* @version 1.0
* @abstract Check if Google. is "dancing".
* @copyright 2004
* @example sample.php A sample code.
* @link http://setecastronomy.stufftoread.com
*/
class googledancer {
/**
* @access private
*/
var $main_server = '';
/**
* @access private
*/
var $alt_servers = array ();
/**
* @access private
*/
var $domains = array ();
/**
* Default constructor
*
* This is the default constructor of googledancer class.
*/
// public function __construct ()
function googledancer () {
if (!function_exists ('fsockopen')) {
die ('googledancer class needs the fsockopen function!');
}
$this->main_server = 'www.google.com';
$this->alt_servers = array ('www.google.ch', 'www.google.at');
$this->domains = array ('yahoo.com', 'cnn.com', 'amazon.com');
}
/**
* @access private
*/
// private safe_set (&$var_true, $var_false = '') {
function safe_set (&$var_true, $var_false = '') {
if (!isset ($var_true)) {
$var_true = $var_false;
}
return $var_true;
}
/**
* @access private
*/
// private queryHTTP ($url, $timeout = 10) {
function queryHTTP ($url, $timeout = 10) {
$parsed = parse_url ($url);
$this->safe_set ($parsed['host']);
$this->safe_set ($parsed['port'], 80);
$this->safe_set ($parsed['path']);
$this->safe_set ($parsed['query']);
$fp = fsockopen ($parsed['host'], $parsed['port'], $errno, $errstr, $timeout);
if ($fp !== false) {
fputs ($fp, "GET " . $parsed['path'] . "?" . $parsed['query'] . " HTTP/1.0\r\n");
fputs ($fp, "Accept: */*\r\n");
fputs ($fp, "Referer: http://setecastronomy.stufftoread.com/\r\n");
fputs ($fp, "Accept-Language: en\r\n");
fputs ($fp, "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)\r\n");
fputs ($fp, "Host: " . $parsed['host'] . "\r\n");
fputs($fp, "Connection: close\r\n\r\n");
$result = '';
while (!feof ($fp)) {
$result .= fgets ($fp, 128);
}
fclose ($fp);
return $result;
}
return false;
}
/**
* The getBackLinks method
*
* This method returns an array with the backlinks count about some important websites.
* @param integer $timeout the timeout value used in the fsockopen function.
* @return mixed it returns an array or false if it fails
*/
// public function getBackLinks ($timeout = 10) {
function getBackLinks ($timeout = 10) {
$result = array ();
$servers[] = $this->main_server;
$servers = array_merge ($servers, $this->alt_servers);
foreach ($this->domains as $domain) {
foreach ($servers as $server) {
$url = 'http://' . $server . '/search?hl=en&ie=UTF-8&q=link%3A' . urlencode ($domain);
$content = $this->queryHTTP ($url);
if ($content !== false) {
if (preg_match ('/ of about <b>([\d,]*?)<\/b> linking /si', $content, $matches)) {
$result[$domain][$server] = str_replace (',', '', $matches[1]);
} else {
$result[$domain][$server] = 0;
}
}
}
}
return $result;
}
/**
* The analizeBackLinks method
*
* This method analyse the {@link googledancer::getBackLinks() googledancer::getBackLinks()} return value and
* returns a float with the percentage probability that Google is dancing.
* @param array $results {@link googledancer::getBackLinks() googledancer::getBackLinks()} return value
* @return mixed it returns a float value with the percentage or false if it fails
*/
function analizeBackLinks ($results) {
if (!is_array ($results)) {
return false;
}
$diff_count = 0;
foreach ($results as $domain => $values) {
if (is_array ($values) && isset ($values[$this->main_server])) {
foreach ($this->alt_servers as $server) {
if (isset ($values[$server]) && is_numeric ($values[$server]) && ($values[$server] > 0)) {
$diff_count += abs ($values[$this->main_server] - $values[$server]) / $values[$server];
} else {
return false;
}
}
} else {
return false;
}
}
return $diff_count * 100;
}
/**
* The getIndexedPages method
*
* This method returns an array with the indexed pages count about some important websites.
* @param integer $timeout the timeout value used in the fsockopen function.
* @return mixed it returns an array or false if it fails
*/
// public function getIndexedPages ($timeout = 10) {
function getIndexedPages ($timeout = 10) {
$result = array ();
$servers[] = $this->main_server;
$servers = array_merge ($servers, $this->alt_servers);
foreach ($this->domains as $domain) {
foreach ($servers as $server) {
$url = 'http://' . $server . '/search?hl=en&ie=UTF-8&q=site%3A' . urlencode ($domain);
$content = $this->queryHTTP ($url);
if ($content !== false) {
if (preg_match ('/ of about <b>([\d,]*?)<\/b> from /si', $content, $matches)) {
$result[$domain][$server] = str_replace (',', '', $matches[1]);
} else {
$result[$domain][$server] = 0;
}
}
}
}
return $result;
}
/**
* The analizeIndexedPages method
*
* This method analyse the {@link googledancer::getIndexedPages() googledancer::getIndexedPages()} return value and
* returns a float with the percentage probability that Google is dancing.
* @param array $results {@link googledancer::getIndexedPages() googledancer::getIndexedPages()} return value
* @return mixed it returns a float value with the percentage or false if it fails
*/
function analizeIndexedPages ($results) {
if (!is_array ($results)) {
return false;
}
$diff_count = 0;
foreach ($results as $domain => $values) {
if (is_array ($values) && isset ($values[$this->main_server])) {
foreach ($this->alt_servers as $server) {
if (isset ($values[$server]) && is_numeric ($values[$server]) && ($values[$server] > 0)) {
$diff_count += abs ($values[$this->main_server] - $values[$server]) / $values[$server];
} else {
return false;
}
}
} else {
return false;
}
}
return $diff_count * 100;
}
/**
* The getResults method
*
* This method returns an array with the results of the given query.
* @param string $keywords the keyword used for the query.
* @param integer $resultcount the number fo results to grab (10, 20, 50, 100).
* @param integer $timeout the timeout value used in the fsockopen function.
* @return mixed it returns an array or false if it fails
*/
function getResults ($keywords = '', $resultcount = 10, $timeout = 10) {
$result = array ();
$servers[] = $this->main_server;
$servers = array_merge ($servers, $this->alt_servers);
foreach ($servers as $server) {
$url = 'http://' . $server . '/search?hl=en&ie=UTF-8&q=' . urlencode ($keywords);
$content = $this->queryHTTP ($url);
if ($content !== false) {
if (preg_match_all ('/<p class=g><a href=(.*?) /si', $content, $matches)) {
$result[$server] = $matches[1];
} else {
$result[$server] = array ();
}
}
}
return $result;
}
/**
* The analizeResults method
*
* This method analyse the {@link googledancer::getResults() googledancer::getResults()} return value and
* returns a float with the percentage probability that Google is dancing.
* @param array $results {@link googledancer::getResults() googledancer::getResults()} return value
* @return mixed it returns a float value with the percentage or false if it fails
*/
function analizeResults ($results) {
if (!is_array ($results) || !isset ($results[$this->main_server])) {
return false;
}
$result_count = 0;
$diff_result_count = 0;
$diff_index_count = 0;
foreach ($this->alt_servers as $server) {
if (isset ($results[$server])) {
$diff_result_count += count ($results[$server]) - count (array_intersect ($results[$this->main_server], $results[$server]));
$diff_index_count += count ($results[$server]) - count (array_intersect_assoc ($results[$this->main_server], $results[$server]));
$result_count += count ($results[$server]) * 2;
} else {
return false;
}
}
if ($result_count == 0) {
$result = 0;
} else {
$result = ($diff_result_count + $diff_index_count) / $result_count * 100;
}
return $result;
}
}
?>
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