add('name', PLUGIN_PAGERANK_NAME);
$propbag->add('description', PLUGIN_PAGERANK_DETAIL);
$propbag->add('stackable', false);
$propbag->add('author', 'Christian Lescuyer');
$propbag->add('version', '0.33');
$propbag->add('requirements', array(
'serendipity' => '0.8',
'smarty' => '2.6.7',
'php' => '4.1.0'
));
$propbag->add('groups', array('FRONTEND_EXTERNAL_SERVICES'));
$properties = array('page_count', 'this_page');
// Warning: loop starts at 1
for ($i = 1, $n = @$this->get_config('page_count'); $i <= $n; ++$i) {
$properties[] = 'page' . $i;
$properties[] = 'capt' . $i;
}
$propbag->add('configuration', $properties);
return true;
}
function introspect_config_item($name, &$propbag)
{
global $serendipity;
if ($name == 'page_count') {
$propbag->add('type', 'string');
$propbag->add('name', PLUGIN_PAGERANK_PAGE_COUNT);
$propbag->add('description', PLUGIN_PAGERANK_PAGE_COUNT_DESC);
$propbag->add('default', '1');
} else if ($name == 'this_page') {
$propbag->add('type', 'radio');
$propbag->add('name', PLUGIN_PAGERANK_THIS_PAGE);
$propbag->add('description', PLUGIN_PAGERANK_THIS_PAGE_DESC);
$propbag->add('radio', array(
'value' => array('yes', 'no'),
'desc' => array(PLUGIN_PAGERANK_THIS_PAGE_YES, PLUGIN_PAGERANK_THIS_PAGE_NO)));
$propbag->add('default', 'yes');
} else if (substr($name, 0, 4) == 'page') {
$index = substr($name, 4);
$propbag->add('type', 'string');
$propbag->add('name', sprintf(PLUGIN_PAGERANK_PAGE_URL, $index));
$propbag->add('description', sprintf(PLUGIN_PAGERANK_PAGE_URL_DESC, $index));
$propbag->add('default', 'http://' . $_SERVER['SERVER_NAME'] . '/');
} else if (substr($name, 0, 4) == 'capt') {
$index = substr($name, 4);
$propbag->add('type', 'string');
$propbag->add('name', sprintf(PLUGIN_PAGERANK_PAGE_CAPTION, $index));
$propbag->add('default', 'Page d\'accueil');
} else {
return false;
}
return true;
}
function generate_content(&$title)
{
global $serendipity;
$title = $this->title;
print '';
// PR for the current page
if ($this->get_config('this_page') == 'yes') {
$page = $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];
print '- ' . PLUGIN_PAGERANK_THIS_PAGE_CAPTION . ': ';
print '
';
}
// Warning: loop starts at 1
for ($i = 1, $n = $this->get_config('page_count'); $i <= $n; ++$i) {
$caption = $this->get_config('capt' . $i);
$page = $this->get_config('page' . $i);
print '- ' . $caption . ': ';
print '
';
}
print '
';
}
/*
* Algorithm lifted from "Google Checksum Algorithm 2.0.114 (PHP Source)"
* written and contributed by Alex Stapleton, Andy Doctorow, Tarakan,
* Bill Zeller, Vijay "Cyberax" Bhatter, traB
* Straightened up by Christian Lescuyer
*
*/
//unsigned shift right
function zeroFill($a, $b)
{
$z = hexdec(80000000);
if ($z & $a) {
$a = ($a>>1);
$a &= (~$z);
$a |= 0x40000000;
$a = ($a>>($b-1));
} else {
$a = ($a>>$b);
}
return $a;
}
function mix($a, $b, $c)
{
$a -= $b; $a -= $c; $a ^= ($this->zeroFill($c,13));
$b -= $c; $b -= $a; $b ^= ($a<<8);
$c -= $a; $c -= $b; $c ^= ($this->zeroFill($b,13));
$a -= $b; $a -= $c; $a ^= ($this->zeroFill($c,12));
$b -= $c; $b -= $a; $b ^= ($a<<16);
$c -= $a; $c -= $b; $c ^= ($this->zeroFill($b,5));
$a -= $b; $a -= $c; $a ^= ($this->zeroFill($c,3));
$b -= $c; $b -= $a; $b ^= ($a<<10);
$c -= $a; $c -= $b; $c ^= ($this->zeroFill($b,15));
return array($a, $b, $c);
}
function GoogleCH($url, $length = 0, $init = 0xE6359A60)
{
if ($length == 0) {
$length = sizeof($url);
}
$a = $b = 0x9E3779B9;
$c = $init;
$k = 0;
$len = $length;
while($len >= 12) {
$a += ($url[$k+0] +($url[$k+1]<<8) +($url[$k+2]<<16) +($url[$k+3]<<24));
$b += ($url[$k+4] +($url[$k+5]<<8) +($url[$k+6]<<16) +($url[$k+7]<<24));
$c += ($url[$k+8] +($url[$k+9]<<8) +($url[$k+10]<<16)+($url[$k+11]<<24));
$mix = $this->mix($a,$b,$c);
$a = $mix[0]; $b = $mix[1]; $c = $mix[2];
$k += 12;
$len -= 12;
}
$c += $length;
switch($len) /* all the case statements fall through */
{
case 11: $c+=($url[$k+10]<<24);
case 10: $c+=($url[$k+9]<<16);
case 9 : $c+=($url[$k+8]<<8);
/* the first byte of c is reserved for the length */
case 8 : $b+=($url[$k+7]<<24);
case 7 : $b+=($url[$k+6]<<16);
case 6 : $b+=($url[$k+5]<<8);
case 5 : $b+=($url[$k+4]);
case 4 : $a+=($url[$k+3]<<24);
case 3 : $a+=($url[$k+2]<<16);
case 2 : $a+=($url[$k+1]<<8);
case 1 : $a+=($url[$k+0]);
/* case 0: nothing left to add */
}
$mix = $this->mix($a,$b,$c);
return $mix[2];
}
//converts a string into an array of integers containing the numeric value of the char
function strord($string)
{
for($i=0;$iGoogleCH($this->strord($url));
$url = "http://www.google.com/search?client=navclient-auto&ch=6$ch&features=Rank&q=" . urlencode($url);
if (ini_get('allow_url_fopen')) {
$data = file_get_contents($url, 128);
} else {
if (function_exists('serendipity_request_url')) {
$data = serendipity_request_url($url);
} else {
require_once S9Y_PEAR_PATH . 'HTTP/Request.php';
$req = new HTTP_Request($url);
if (!PEAR::isError($req->sendRequest())) {
$data = $req->getResponseBody();
}
}
}
$rankarray = explode (':', $data);
return $rankarray[2];
}
}
/* vim: set sts=4 ts=4 expandtab : */