public static function &getInstance()
{
if (self::$_instance == null) {
self::$_instance = new __SiteMap();
}
return self::$_instance;
}
public function &getLinkedPage()
{
$return_value = null;
if (__SiteMap::getInstance()->hasPage($this->_href)) {
$return_value = __SiteMap::getInstance()->getPage($this->_href);
}
return $return_value;
}
public function updateRanks_click(__UIEvent &$event)
{
$sitemap = __SiteMap::getInstance();
$page_ranker = new __PageRanker($sitemap);
$page_ranker->calculate();
$sitemap->saveResults();
$this->refresh();
}
public function rankAnalysisAction()
{
$mav = new __ModelAndView('rankAnalysis');
$sitemap = __SiteMap::getInstance();
$pages = $sitemap->getPages();
usort($pages, array($this, 'sortByPagerank'));
$mav->pages = $pages;
return $mav;
}
public function defaultAction()
{
$mav = new __ModelAndView('siteAnalyzer');
$sitemap = __SiteMap::getInstance();
$last_update = $sitemap->getLastUpdate();
if ($last_update !== null) {
$mav->last_update = date("Y/m/d H:i:s", $last_update);
}
return $mav;
}
protected function _doCrawl($uri, $ping_callback = null)
{
//crawl all the site and build the sitemap
$page_visitor = new __PageVisitor();
$page = $page_visitor->visit($uri, 1);
$sitemap = __SiteMap::getInstance();
if ($page !== null) {
$links = $page->getLinks();
$counter = 0;
while (count($links) > 0) {
$link = array_shift($links);
if ($link->getLevel() <= 3) {
$href = $link->getHref();
$url_parts = parse_url($href);
//do not crawl outside our domain:
if ($url_parts['host'] == $_SERVER['HTTP_HOST']) {
$page = $page_visitor->visit($link->getHref(), $link->getLevel() + 1);
if ($page !== null) {
$sitemap->addPage($page);
$page_links = $page->getLinks();
foreach ($page_links as $page_link) {
$page_link_href = $page_link->getHref();
if (!$sitemap->hasPage($page_link_href)) {
if ($page_link->getLevel() <= 3) {
$links[$page_link_href] = $page_link;
}
}
}
$counter++;
//callback each 100 links:
if ($counter >= 5) {
$counter = 0;
if ($ping_callback != null) {
call_user_func_array($ping_callback, array(5, count($links)));
}
}
unset($page);
}
}
}
}
}
}
public function visit($uri, $level)
{
$return_value = null;
$sitemap = __SiteMap::getInstance();
if (!$sitemap->hasPage($uri)) {
$return_value = new __SiteMapPage($uri);
$return_value->setLevel($level);
if (function_exists('curl_init')) {
$content = $this->_setPageContent($uri, $return_value);
} else {
$content = file_get_contents($uri);
$return_value->setContent($content);
}
if (!empty($content)) {
$links = $this->_readLinks($uri, $content, $level);
//build the page:
$return_value->setLinks($links);
}
}
return $return_value;
}
/**
* Updates the sitemap
*
* @param __UIEvent $event
*/
public function updateSitemap_click(__UIEvent &$event)
{
$this->getComponent('updateStatus')->setText(" Crawling the site, please wait...");
$this->getComponent('updateStatus')->crawled_links = 0;
__ClientNotificator::getInstance()->notify();
$sitemap = __SiteMap::getInstance();
$sitemap->update(array($this, 'updateUpdateStatus'));
$this->getComponent('updateStatus')->setText(" Calculate page rank, please wait...");
__ClientNotificator::getInstance()->notify();
$page_ranker = new __PageRanker($sitemap);
$page_ranker->calculate();
$sitemap->saveResults();
$this->getComponent('updateStatus')->setText("");
$last_update = __SiteMap::getInstance()->getLastUpdate();
if ($last_update !== null) {
$this->getComponent('lastUpdate')->setText(date("Y/m/d H:i:s", $last_update));
}
$analyzerSection = $this->getComponent('analyzerSection');
$analyzerSection->setController('siteAnalyzerResults');
$analyzerSection->setAction('generalAnalysis');
$analyzerSection->refresh();
}
public function getBacklinks()
{
$connection_matrix = __SiteMap::getInstance()->getConnectionMatrix();
return $connection_matrix[$this->_uri];
}
