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StatisticsAggregationPageHandler.inc.php
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StatisticsAggregationPageHandler.inc.php
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<?php
/**
* @file StatisticsAggregationPageHandler.inc.php
*
* Copyright (c) 2003-2010 John Willinsky
* Distributed under the GNU GPL v2. For full terms see the file docs/COPYING.
*
* @package plugins.generic.statisticsAggregator
* @class StatisticsAggregationPageHandler
*
* Handle page requests for the Plugin
*/
import('classes.handler.Handler');
class StatisticsAggregationPageHandler extends Handler {
function index($args) {
return true;
}
function lookup($args) {
$journal =& Request::getJournal();
$journalId = $journal->getId();
$vars = Request::getUserVars();
$institutionalSubscriptionDao =& DAORegistry::getDAO('InstitutionalSubscriptionDAO');
$individualSubscriptionDao =& DAORegistry::getDAO('IndividualSubscriptionDAO');
$journalStatisticsDao =& DAORegistry::getDAO('JournalStatisticsDAO');
$subscriptionStats = $journalStatisticsDao->getSubscriptionStatistics($journalId);
$registeredUsers = $journalStatisticsDao->getUserStatistics($journalId);
$totalReaders = $registeredUsers['reader'];
$ipXML = $vars['ipXML'];
if ($ipXML != '') {
// build an XML doc based on the IP document posted from the aggregation server
$xmlDoc = new DOMDocument();
$xmlDoc->loadXML($ipXML);
if ($xmlDoc) {
// grab the <h> node which contains the <v> visitor nodes
$hostNodeList = $xmlDoc->getElementsByTagName('h');
if ($hostNodeList->length == 1) { // there should just be one top level host node.
$node =& $hostNodeList->item(0);
if ($node->hasAttributes()) {
// the <h> node has a 'key' attribute containing the sha1 security hash sent along
$key =& $node->attributes->item(0)->value;
// key is a security code we included in the XML document when we sent it
if (preg_match("/^[\w\d]{40}$/", $key)) {
// load our plugin to get settings
$statAggrPlugin =& PluginRegistry::getPlugin('generic', STATS_AGGR_PLUGIN_NAME);
$storedHashCode =& $statAggrPlugin->getSetting($journalId, 'statisticsAggregationSiteId');
$storedEmailAddress =& $statAggrPlugin->getSetting($journalId, 'statisticsAggregationSiteEmail');
// this was a valid submission? the keys match?
if (sha1($storedHashCode . $storedEmailAddress) == $key) {
// grab <v> nodes.
$visitorNodes = $xmlDoc->getElementsByTagName('v');
$visitorNodeCount = $visitorNodes->length;
for ($i = 0 ; $i < $visitorNodeCount ; $i ++) {
$subscriptionName = '';
$visitorNode =& $visitorNodes->item($i);
$hostToSearch =& $visitorNode->attributes->item(0)->value; // it's either a domain or an IP address
$domain = $ipAddress = null;
if (preg_match("{^\d+\.\d+\.\d+\.\d+$}", $hostToSearch)) { // it's an IP?
$ipAddress = $hostToSearch;
$domain = null;
} else {
$domain = $hostToSearch;
$ipAddress = null;
}
if ($subscriptionId = $institutionalSubscriptionDao->isValidInstitutionalSubscription($domain, $ipAddress, $journalId, SUBSCRIPTION_DATE_END, '2000-01-01')) {
$subscription =& $institutionalSubscriptionDao->getSubscription($subscriptionId);
$subscriptionName = $subscription->getInstitutionName();
}
// whether we found a subscription or not, set the 'sub' attribute on the <v> node so we can send it back.
$visitorNode->setAttribute('sub', $subscriptionName);
}
} else { // error out -- incorrect security key
return null;
}
}
}
}
// build the new document
$rootNode = $xmlDoc->getElementsByTagName('visitorDocument')->item(0);
$userInformationElement = $xmlDoc->createElement('userInfo');
$readerTotalElement = $xmlDoc->createElement('readers');
$readerTotalText = $xmlDoc->createTextNode($totalReaders);
$readerTotalElement->appendChild($readerTotalText);
$userInformationElement->appendChild($readerTotalElement);
$subscriptionsElement = $xmlDoc->createElement('subscriptions');
foreach ($subscriptionStats as $subscriptionType) {
$subscriptionElement = $xmlDoc->createElement('sub');
$subscriptionElement->setAttribute('name', $subscriptionType['name']);
$subscriptionElement->setAttribute('count', $subscriptionType['count']);
$subscriptionsElement->appendChild($subscriptionElement);
}
$userInformationElement->appendChild($subscriptionsElement);
// import our new user info into the original document, append it, and send it back.
$userInformationElement = $xmlDoc->importNode($userInformationElement, true);
$rootNode->appendChild($userInformationElement);
print $xmlDoc->saveXML(); // this is the respone to the CURL request from the aggregation server.
exit(0);
}
} else {
error_log("No XML document retrieved. Exiting.");
exit(0);
}
}
}
?>