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owa_coreAPI.php
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owa_coreAPI.php
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<?php
//
// Open Web Analytics - An Open Source Web Analytics Framework
//
// Copyright 2006 Peter Adams. All rights reserved.
//
// Licensed under GPL v2.0 http://www.gnu.org/copyleft/gpl.html
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// $Id$
//
require_once(OWA_BASE_DIR.'/owa_lib.php');
/**
* OWA Core API
*
* @author Peter Adams <peter@openwebanalytics.com>
* @copyright Copyright © 2006 Peter Adams <peter@openwebanalytics.com>
* @license http://www.gnu.org/copyleft/gpl.html GPL v2.0
* @category owa
* @package owa
* @version $Revision$
* @since owa 1.0.0
*/
class owa_coreAPI {
// @depricated
// @todo remove
public static function singleton($params = array()) {
static $api;
if(!isset($api)):
$api = new owa_coreAPI();
endif;
if(!empty($params)):
$api->params = $params;
endif;
return $api;
}
public static function setupStorageEngine($type) {
if (!class_exists('owa_db')) {
require_once(OWA_BASE_CLASSES_DIR.'owa_db.php');
}
if ($type) {
$connection_class = "owa_db_" . $type;
if (!class_exists($connection_class)) {
$connection_class_path = OWA_PLUGINS_DIR.'/db/' . $connection_class . ".php";
if (!require_once($connection_class_path)) {
owa_coreAPI::error(sprintf('Cannot locate proper db class at %s.', $connection_class_path));
return false;
}
}
}
return true;
}
public static function dbSingleton() {
static $db;
if (!isset($db)) {
$db = owa_coreAPI::dbFactory();
}
return $db;
}
public static function dbFactory() {
$db_type = owa_coreAPI::getSetting('base', 'db_type');
$ret = owa_coreAPI::setupStorageEngine($db_type);
if (!$ret) {
owa_coreAPI::error(sprintf('Cannot locate proper db class at %s. Exiting.', $connection_class_path));
return;
} else {
$connection_class = 'owa_db_'.$db_type;
$db = new $connection_class(
owa_coreAPI::getSetting('base','db_host'),
owa_coreAPI::getSetting('base','db_name'),
owa_coreAPI::getSetting('base','db_user'),
owa_coreAPI::getSetting('base','db_password'),
owa_coreAPI::getSetting('base','db_force_new_connections'),
owa_coreAPI::getSetting('base','db_make_persistant_connections')
);
return $db;
}
}
public static function &configSingleton($params = array()) {
static $config;
if( ! isset( $config ) ) {
if ( ! class_exists( 'owa_settings' ) ) {
require_once( OWA_BASE_CLASS_DIR.'settings.php' );
}
$config = owa_coreAPI::supportClassFactory( 'base', 'settings' );
}
return $config;
}
public static function errorSingleton() {
static $e;
if( ! $e ) {
if ( ! class_exists( 'owa_error' ) ) {
require_once( OWA_BASE_CLASS_DIR.'error.php' );
}
$e = owa_coreAPI::supportClassFactory( 'base', 'error' );
}
return $e;
}
public static function getSetting($module, $name) {
$s = &owa_coreAPI::configSingleton();
return $s->get($module, $name);
}
public static function setSetting($module, $name, $value, $persist = false) {
$s = &owa_coreAPI::configSingleton();
if ($persist === true) {
$s->persistSetting($module, $name, $value);
} else {
$s->setSetting($module, $name, $value);
}
}
public static function persistSetting($module, $name, $value) {
$s = &owa_coreAPI::configSingleton();
$s->persistSetting($module, $name, $value);
}
public static function getSiteSetting($site_id, $name) {
$site = owa_coreAPI::entityFactory('base.site');
$site->load( $site->generateId( $site_id ) );
if ( $site->wasPersisted() ) {
$settings = $site->get('settings');
if (!empty($settings)) {
if ( array_key_exists($name, $settings) ) {
return $settings[$name];
}
}
}
}
public static function persistSiteSetting($site_id, $name, $value) {
$site = owa_coreAPI::entityFactory('base.site');
$site->load( $site->generateId( $site_id ) );
if ( $site->wasPersisted() ) {
$settings = $site->get('settings');
if ( ! $settings ) {
$settings = array();
}
$settings[$name] = $value;
$site->set('settings', $settings);
$site->update();
}
}
public static function getSiteSettings($site_id) {
$site = owa_coreAPI::entityFactory('base.site');
$site->load( $site->generateId( $site_id ) );
if ( $site->wasPersisted() ) {
$settings = $site->get('settings');
if ( $settings ) {
return $settings;
} else {
return array();
}
}
}
public static function getAllRoles() {
$caps = owa_coreAPI::getSetting('base', 'capabilities');
return array_keys($caps);
}
public static function &getCurrentUser() {
$s = &owa_coreAPI::serviceSingleton();
return $s->getCurrentUser();
}
/**
* check to see if the current user has a capability
* always returns a bool
*/
public static function isCurrentUserCapable($capability) {
$cu = &owa_coreAPI::getCurrentUser();
owa_coreAPI::debug("Current User Role: ".$cu->getRole());
owa_coreAPI::debug("Current User Authentication: ".$cu->isAuthenticated());
$ret = $cu->isCapable($capability);
owa_coreAPI::debug("Is current User capable: ".$ret);
return $ret;
}
public static function isCurrentUserAuthenticated() {
$cu = &owa_coreAPI::getCurrentUser();
return $cu->isAuthenticated();
}
public static function &serviceSingleton() {
static $s;
if(empty($s)) {
if (!class_exists('owa_service')) {
require_once(OWA_BASE_CLASS_DIR.'service.php');
}
$s = owa_coreAPI::supportClassFactory('base', 'service');
}
return $s;
}
public static function cacheSingleton($params = array()) {
static $cache;
if ( !isset ( $cache ) ) {
$cache_type = owa_coreAPI::getSetting('base', 'cacheType');
switch ($cache_type) {
case "memcached":
$implementation = array('owa_memcachedCache', OWA_BASE_CLASS_DIR.'memcachedCache.php');
break;
default:
$implementation = array('owa_fileCache', OWA_BASE_CLASS_DIR.'fileCache.php');
}
if ( ! class_exists( $implementation[0] ) ) {
require_once( $implementation[1] );
}
// make this plugable
$cache = new $implementation[0];
}
return $cache;
}
public static function requestContainerSingleton() {
static $request;
if(!isset($request)):
if (!class_exists('owa_requestContainer')):
require_once(OWA_DIR.'owa_requestContainer.php');
endif;
$request = owa_lib::factory(OWA_DIR, '', 'owa_requestContainer');
endif;
return $request;
}
public static function moduleRequireOnce($module, $class_dir, $file) {
if (!empty($class_dir)) {
$class_dir .= '/';
}
$full_file_path = OWA_BASE_DIR.'/modules/'.$module.'/'.$class_dir.$file.'.php';
if (file_exists($full_file_path)) {
return require_once($full_file_path);
} else {
owa_coreAPI::debug("moduleRequireOnce says no file found at: $full_file_path");
return false;
}
}
public static function moduleFactory($modulefile, $class_suffix = null, $params = '', $class_ns = 'owa_') {
list($module, $file) = explode(".", $modulefile);
$class = $class_ns.$file.$class_suffix;
//print $class;
// Require class file if class does not already exist
if(!class_exists($class)):
owa_coreAPI::moduleRequireOnce($module, '', $file);
endif;
$obj = owa_lib::factory(OWA_BASE_DIR.'/modules/'.$module, '', $class, $params);
//if (isset($obj->module)):
$obj->module = $module;
//endif;
return $obj;
}
public static function moduleGenericFactory($module, $sub_directory, $file, $class_suffix = null, $params = '', $class_ns = 'owa_') {
$class = $class_ns.$file.$class_suffix;
// Require class file if class does not already exist
if(!class_exists($class)):
owa_coreAPI::moduleRequireOnce($module, $sub_directory, $file);
endif;
$obj = owa_lib::factory(OWA_DIR.'modules'.'/'.$module.'/'.$sub_directory, '', $class, $params);
return $obj;
}
/**
* Produces Module Classes (module.php)
*
* @return Object module class object
*/
public static function moduleClassFactory($module) {
if (!class_exists('owa_module')):
require_once(OWA_BASE_CLASSES_DIR.'owa_module.php');
endif;
require_once(OWA_BASE_DIR.'/modules/'.$module.'/module.php');
return owa_lib::factory(OWA_BASE_CLASSES_DIR.$module, 'owa_', $module.'Module');
}
public static function updateFactory($module, $filename, $class_ns = 'owa_') {
require_once(OWA_BASE_CLASS_DIR.'update.php');
//$obj = owa_coreAPI::moduleGenericFactory($module, 'updates', $filename, '_update');
$class = $class_ns.$module.'_'.$filename.'_update';
// Require class file if class does not already exist
if(!class_exists($class)):
owa_coreAPI::moduleRequireOnce($module, 'updates', $filename);
endif;
$obj = owa_lib::factory(OWA_DIR.'modules'.'/'.$module.'/'.'updates', '', $class);
$obj->module_name = $module;
if (!$obj->schema_version) {
$obj->schema_version = $filename;
}
return $obj;
}
public static function subViewFactory($subview, $params = array()) {
list($module, $class) = explode(".", $subview);
//print_r($module.' ' . $class);
//owa_lib::moduleRequireOnce($module, $class);
$subview = owa_lib::moduleFactory($subview, 'View', $params);
$subview->is_subview = true;
return $subview;
}
public static function supportClassFactory($module, $class, $params = array(),$class_ns = 'owa_') {
$obj = &owa_lib::factory(OWA_BASE_DIR.'/'.'modules'.'/'.$module.'/'.'classes'.'/', $class_ns, $class, $params);
$obj->module = $module;
return $obj;
}
/**
* Convienence method for generating entities
*
* @param unknown_type $entity_name
* @return unknown
*/
public static function entityFactory($entity_name) {
/* SETUP STORAGE ENGINE */
// Must be called before any entities are created
if (!defined('OWA_DTD_INT')) {
if (defined('OWA_DB_TYPE')) {
owa_coreAPI::setupStorageEngine(OWA_DB_TYPE);
} else {
//owa_coreAPI::setupStorageEngine('mysql');
owa_coreAPI::setupStorageEngine('sqlserver');
}
}
if (!class_exists('owa_entity')):
require_once(OWA_BASE_CLASSES_DIR.'owa_entity.php');
endif;
$entity = owa_coreAPI::moduleSpecificFactory($entity_name, 'entities', '', '', false);
$entity->name = $entity_name;
return $entity;
//return owa_coreAPI::supportClassFactory('base', 'entityManager', $entity_name);
}
/**
* Convienence method for generating entities
*
* @param unknown_type $entity_name
* @return unknown
* @depricated
* @todo REMOVE
*/
public static function rawEntityFactory($entity_name) {
return owa_coreAPI::entityFactory($entity_name);
}
/**
* Factory for generating module specific classes
*
* @param string $modulefile
* @param string $class_dir
* @param string $class_suffix
* @param array $params
* @return unknown
*/
public static function moduleSpecificFactory($modulefile, $class_dir, $class_suffix = null, $params = '', $add_module_name = true, $class_ns = 'owa_') {
list($module, $file) = explode(".", $modulefile);
$class = $class_ns.$file.$class_suffix;
// Require class file if class does not already exist
if(!class_exists($class)):
owa_coreAPI::moduleRequireOnce($module, $class_dir, $file);
endif;
$obj = owa_lib::factory(OWA_BASE_DIR.'/'.'modules'.'/'.$class_dir.'/'.$module, '', $class, $params);
if ($add_module_name == true):
$obj->module = $module;
endif;
return $obj;
}
public static function executeApiCommand($map) {
if (!array_key_exists('do', $map)) {
owa_coreAPI::debug('API Command missing from request. Aborting.');
exit;
} else {
// load service
$s = owa_coreAPI::serviceSingleton();
// lookup method class
$do = $s->getApiMethodClass($map['do']);
}
// if exists, pass to OWA as a request
if ($do) {
if (array_key_exists('args', $do)) {
$passed_args = array();
foreach ($do['args'] as $arg) {
if (isset($map[$arg])) {
$passed_args[] = $map[$arg];
} else {
$passed_args[] = '';
}
}
if (!empty($do['file'])) {
if (!class_exists($do['callback'][0])) {
require_once($file);
}
}
$something = call_user_func_array($do['callback'], $passed_args);
}
return $something;
} else {
echo "No API Method Found.";
}
}
/**
* Convienence method for generating metrics
*
* @param unknown_type $entity_name
* @return unknown
*/
public static function metricFactory($metric_name, $params = array()) {
if (!strpos($metric_name, '.')) {
$s = owa_coreAPI::serviceSingleton();
$metric_name = $s->getMetricClasses($metric_name);
}
if (!class_exists('owa_metric')) {
require_once(OWA_BASE_CLASSES_DIR.'owa_metric.php');
}
return owa_coreAPI::moduleSpecificFactory($metric_name, 'metrics', '', $params, false);
}
/**
* Returns a consolidated list of admin/options panels from all active modules
*
* @return array
*/
public static function getAdminPanels() {
$panels = array();
$service = owa_coreAPI::serviceSingleton();
foreach ($service->modules as $k => $v) {
$v->registerAdminPanels();
$module_panels = $v->getAdminPanels();
if ($module_panels) {
foreach ($module_panels as $key => $value) {
$panels[$value['group']][] = $value;
}
}
}
return $panels;
}
/**
* Returns a consolidated list of nav links from all active modules for a particular view
* and named navigation element.
*
* @param string nav_name the name of the navigation element that you want links for
* @param string sortby the array value to sort the navigation array by
* @return array
*/
public static function getNavigation($view, $nav_name, $sortby ='order') {
$links = array();
$service = owa_coreAPI::serviceSingleton();
foreach ($service->modules as $k => $v) {
// If the module does not have nav links, register them. needed in case this function is called twice on
// same view.
if (empty($v->nav_links)):
$v->registerNavigation();
endif;
$module_nav = $v->getNavigationLinks();
if (!empty($module_nav)) {
// assemble the navigation for a specific view's named navigation element'
foreach ($module_nav as $key => $value) {
$links[$value['view']][$value['nav_name']][] = $value;
}
}
}
//print_r($links[$view][$nav_name]);
if (!empty($links[$view][$nav_name])):
// anonymous sorting function, takes sort by variable.
$code = "return strnatcmp(\$a['$sortby'], \$b['$sortby']);";
// sort the array
$ret = usort($links[$view][$nav_name], create_function('$a,$b', $code));
return $links[$view][$nav_name];
else:
return false;
endif;
}
public static function getGroupNavigation($group_name, $sortby ='order') {
$links = array();
$service = owa_coreAPI::serviceSingleton();
foreach ($service->modules as $k => $v) {
// If the module does not have nav links, register them. needed in case this function is called twice on
// same view.
if (empty($v->nav_links)) {
$v->registerNavigation();
}
$module_nav = $v->getNavigationLinks();
if ( $module_nav ) {
//loop through returned nav array
foreach ($module_nav as $group => $nav_links) {
foreach ($nav_links as $link) {
if (array_key_exists($group, $links)) {
// check to see if link is already present in the main array
if (array_key_exists($link['anchortext'], $links[$group])) {
// merge various elements?? not now.
//check to see if there is an existing subgroup
if (array_key_exists('subgroup', $links[$group][$link['anchortext']])) {
// if so, merge the subgroups
$links[$group][$link['anchortext']]['subgroup'] = array_merge($links[$group][$link['anchortext']]['subgroup'], $link['subgroup']);
}
} else {
// else populate the link
$links[$group][$link['anchortext']] = $link;
}
} else {
$links[$group][$link['anchortext']] = $link;
}
}
}
}
}
if ( isset( $links[$group_name] ) ) {
return $links[$group_name];
}
}
/**
* @Todo REMOVE
*/
public static function getNavSort($a, $b) {
return strnatcmp($a['order'], $b['order']);
}
public static function getActiveModules() {
$c = owa_coreAPI::configSingleton();
$config = $c->config->get('settings');
//print_r($config);
$active_modules = array();
foreach ($config as $k => $module) {
if ( isset($module['is_active']) && $module['is_active'] == true) {
$active_modules[] = $k;
}
}
return $active_modules;
}
public static function getModulesNeedingUpdates() {
$service = owa_coreAPI::serviceSingleton();
return $service->getModulesNeedingUpdates();
}
/**
* Invokes controller to perform controller
*
* @param $action string
*
*/
public static function performAction($action, $params = array()) {
// Load
$controller = owa_coreAPI::moduleFactory($action, 'Controller', $params);
if (!$controller || !method_exists($controller, 'doAction')) {
owa_coreAPI::debug("No controller is associated with $action.");
return;
}
$data = $controller->doAction();
// Display view if controller calls for one.
if (!empty($data['view']) || !empty($data['action'])):
//
if ($data['view_method'] == 'delegate'):
return owa_coreAPI::displayView($data);
// Redirect to a view
elseif ($data['view_method'] == 'redirect'):
owa_lib::redirectToView($data);
return;
// return an image . Will output headers and binary data.
elseif ($data['view_method'] == 'image'):
return owa_coreAPI::displayImage($data);
else:
return owa_coreAPI::displayView($data);
endif;
elseif(!empty($data['do'])):
//print_r($data);
owa_lib::redirectToView($data);
return;
endif;
}
/**
* Logs an event to the event queue
*
* take an owa_event object as a message.
*
* @param string $event_type
* @param object $message
* @return boolean
*/
public static function logEvent($event_type, $message = '') {
// debug
owa_coreAPI::debug("logging event $event_type");
if (owa_coreAPI::getSetting('base', 'error_log_level') > 9) {
owa_coreAPI::debug("PHP Server Global: ".print_r($_SERVER, true));
}
// Check to see if named users should be logged
if (owa_coreAPI::getSetting('base', 'log_named_users') != true) {
$cu = owa_coreAPI::getCurrentUser();
$cu_user_id = $cu->getUserData('user_id');
if(!empty($cu_user_id)) {
return false;
}
}
// do not log if the request is robotic
$service = &owa_coreAPI::serviceSingleton();
$bcap = $service->getBrowscap();
owa_coreAPI::profile(__CLASS__, __FUNCTION__, __LINE__);
if (!owa_coreAPI::getSetting('base', 'log_robots')) {
if ($bcap->robotCheck()) {
owa_coreAPI::debug("ABORTING: request appears to be from a robot");
owa_coreAPI::setRequestParam('is_robot', true);
return;
}
owa_coreAPI::profile(__CLASS__, __FUNCTION__, __LINE__);
}
$service->setBrowscap($bcap);
// form event if one was not passed
$class= 'owa_event';
if (!($message instanceof $class)) {
$event = owa_coreAPI::supportClassFactory('base', 'event');
$event->setProperties($message);
$event->setEventType($event_type);
} else {
$event = $message;
}
// Filter XSS exploits from event properties
$event->cleanProperties();
// do not log if the do not log property is set on the event.
if ($event->get('do_not_log')) {
return false;
}
// lookup which event processor to use to process this event type
$processor_action = owa_coreAPI::getEventProcessor($event->getEventType());
return owa_coreAPI::handleRequest(array('event' => $event), $processor_action);
}
public static function displayImage($data) {
header('Content-type: image/gif');
header('P3P: CP="'.owa_coreAPI::getSetting('base', 'p3p_policy').'"');
header('Expires: Sat, 22 Apr 1978 02:19:00 GMT');
header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Cache-Control: post-check=0, pre-check=0', false);
header('Pragma: no-cache');
echo owa_coreAPI::displayView($data);
}
/**
* Displays a View without user authentication. Takes array of data as input
*
* @param array $data
* @param string $viewfile a specific view file to use
* @return string
*
*/
public static function displayView($data, $viewfile = '') {
if (empty($viewfile)):
$viewfile = $data['view'];
endif;
$view = owa_coreAPI::moduleFactory($viewfile, 'View');
$view->setData($data);
return $view->assembleView($data);
}
public static function displaySubView($data, $viewfile = '') {
if (empty($viewfile)):
$viewfile = $data['view'];
endif;
$view = owa_coreAPI::subViewFactory($viewfile);
return $view->assembleView($data);
}
/**
* Strip a URL of certain GET params
* @depricated
* @return string
* @todo REMOVE
*/
function stripDocumentUrl($url) {
if (owa_coreAPI::getSetting('base', 'clean_query_string')):
if (owa_coreAPI::getSetting('base', 'query_string_filters')):
$filters = str_replace(' ', '', owa_coreAPI::getSetting('base', 'query_string_filters'));
$filters = explode(',', $filters);
else:
$filters = array();
endif;
// OWA specific params to filter
array_push($filters, owa_coreAPI::getSetting('base', 'source_param'));
array_push($filters, owa_coreAPI::getSetting('base', 'ns').owa_coreAPI::getSetting('base', 'feed_subscription_param'));
//print_r($filters);
foreach ($filters as $filter => $value) {
$url = preg_replace(
'#\?' .
$value .
'=.*$|&' .
$value .
'=.*$|' .
$value .
'=.*&#msiU',
'',
$url
);
}
endif;
//print $url;
return $url;
}
public static function getRequestParam($name) {
$service = &owa_coreAPI::serviceSingleton();
return $service->request->getParam($name);
}
public static function getRequest() {
$service = &owa_coreAPI::serviceSingleton();
return $service->request;
}
public static function setRequestParam($name, $value) {
$service = &owa_coreAPI::serviceSingleton();
return $service->request->setParam($name, $value);
}
public static function makeTimePeriod($time_period, $params = array()) {
$period = owa_coreAPI::supportClassFactory('base', 'timePeriod');
$map = array();
if (array_key_exists('startDate', $params)) {
$map['startDate'] = $params['startDate'];
}
if (array_key_exists('endDate', $params)) {
$map['endDate'] = $params['endDate'];
}
if (array_key_exists('startTime', $params)) {
$map['startTime'] = $params['startTime'];
}
if (array_key_exists('endTime', $params)) {
$map['endTime'] = $params['endTime'];
}
$period->set($time_period, $map);
return $period;
}
/**
* Factory method for producing validation objects
*
* @return Object
*/
public static function validationFactory($class_file) {
if (!class_exists('owa_validation')):
require_once(OWA_BASE_CLASS_DIR.'validation.php');
endif;
return owa_lib::factory(OWA_PLUGINS_DIR.'/validations', 'owa_', $class_file, array(), 'Validation');