/**
* Performs paged API requests.
*
* This enables to retrieve more than 10 items. However, for it, it performs multiple requests, thus, it will be slow.
*
* @since 2.0.1
*/
protected function getRequest($iCount)
{
$_oAPI = new AmazonAutoLinks_ProductAdvertisingAPI($this->arrArgs['country'], $this->oOption->getAccessPublicKey(), $this->oOption->getAccessPrivateKey(), $this->arrArgs['associate_id']);
// First, perform the search for the first page regardless the specified count (number of items).
// Keys with an empty value will be filtered out when performing the request.
$_aResponse = $_oAPI->request($this->getAPIParameterArray($this->arrArgs['Operation']), '', $this->arrArgs['cache_duration']);
if ($iCount <= 10) {
return $_aResponse;
}
// Check necessary key is set
if (!isset($_aResponse['Items']['Item']) || !is_array($_aResponse['Items']['Item'])) {
return $_aResponse;
}
// Calculate the required number of pages.
$_iPage = $this->_getTotalPageNumber($iCount, $_aResponse, $this->arrArgs['SearchIndex']);
$_aResponseTrunk = $_aResponse;
// First perform fetching data in the background if caches are not available. Parse backwards
$_fScheduled = null;
for ($_i = $_iPage; $_i >= 2; $_i--) {
$_fResult = $_oAPI->scheduleInBackground($this->getAPIParameterArray($this->arrArgs['Operation'], $_i));
$_fScheduled = $_fScheduled ? $_fScheduled : $_fResult;
}
if ($_fScheduled) {
// there are items scheduled to fetch in the background, do it right now.
AmazonAutoLinks_Shadow::gaze();
}
// Start from the second page since the first page has been already done.
for ($_i = 2; $_i <= $_iPage; $_i++) {
$_aResponse = $_oAPI->request($this->getAPIParameterArray($this->arrArgs['Operation'], $_i), '', $this->arrArgs['cache_duration']);
if (isset($_aResponse['Items']['Item']) && is_array($_aResponse['Items']['Item'])) {
$_aResponseTrunk['Items']['Item'] = $this->_addItems($_aResponseTrunk['Items']['Item'], $_aResponse['Items']['Item']);
}
}
return $_aResponseTrunk;
}
/**
* Schedules an action of getting product information in the background.
*
* @since 3
* @action schedule aal_action_api_get_product_info
*/
public static function getProductInfo($sAssociateID, $sASIN, $sLocale, $iCacheDuration)
{
$_oOption = AmazonAutoLinks_Option::getInstance();
if (!$_oOption->isAPIConnected()) {
return false;
}
$_bScheduled = self::_scheduleTask('aal_action_api_get_product_info', array($sAssociateID, $sASIN, $sLocale, $iCacheDuration));
if (!$_bScheduled) {
return $_bScheduled;
}
// Loads the site in the background. The method takes care of doing it only once in the entire page load.
AmazonAutoLinks_Shadow::see();
return true;
}
/**
* Triggers event actions.
*/
public function __construct()
{
new AmazonAutoLinks_Event_HTTPCacheRenewal();
new AmazonAutoLinks_Event_Action_SimplePie_CacheRenewal('aal_action_simplepie_renew_cache');
new AmazonAutoLinks_Event_Action_UnitPrefetch('aal_action_unit_prefetch');
new AmazonAutoLinks_Event_Action_ProductAdvertisingAPICacheRenewal('aal_action_api_transient_renewal');
new AmazonAutoLinks_Event_Action_API_SearchProduct('aal_action_api_get_product_info');
new AmazonAutoLinks_Event_Action_CustomerReview('aal_action_api_get_customer_review');
new AmazonAutoLinks_Event_Action_TemplateOptionConverter('aal_action_event_convert_template_options', 2);
// This must be called after the above action hooks are added.
$_oOption = AmazonAutoLinks_Option::getInstance();
$_bIsIntenceCachingMode = 'intense' === $_oOption->get('cache', 'chaching_mode');
// Force executing actions.
new AmazonAutoLinks_Shadow($_bIsIntenceCachingMode ? array('aal_action_unit_prefetch', 'aal_action_simplepie_renew_cache', 'aal_action_api_transient_renewal', 'aal_action_api_get_product_info', 'aal_action_api_get_customer_review', 'aal_action_http_cache_renewal') : array('aal_action_unit_prefetch', 'aal_action_api_get_product_info', 'aal_action_api_get_customer_review', 'aal_action_http_cache_renewal'));
if (!$_bIsIntenceCachingMode) {
if (AmazonAutoLinks_Shadow::isBackground()) {
exit;
}
}
$this->_handleQueryURL();
}
public function __construct()
{
// For SimplePie cache renewal events
add_action('aal_action_simplepie_renew_cache', array($this, '_replyToRenewSimplePieCaches'));
// For API transient (cache) renewal events
add_action('aal_action_api_transient_renewal', array($this, '_replyToRenewAPITransients'));
// This must be called after the above action hooks are added.
if ('intense' == $GLOBALS['oAmazonAutoLinks_Option']->arrOptions['aal_settings']['cache']['chaching_mode']) {
new AmazonAutoLinks_Shadow(array('aal_action_simplepie_renew_cache', 'aal_action_api_transient_renewal'));
} else {
if (AmazonAutoLinks_Shadow::isBackground()) {
exit;
}
}
// User ads redirects
if (isset($_GET['amazon_auto_links_link']) && $_GET['amazon_auto_links_link']) {
$_oRedirect = new AmazonAutoLinks_Redirects();
$_oRedirect->go($_GET['amazon_auto_links_link']);
// will exit there.
}
// Draw cached image.
if (isset($_GET['amazon_auto_links_image']) && $_GET['amazon_auto_links_image'] && is_user_logged_in()) {
$_oImageLoader = new AmazonAutoLinks_ImageHandler(AmazonAutoLinks_Commons::TransientPrefix);
$_oImageLoader->draw($_GET['amazon_auto_links_image']);
exit;
}
// For the activation hook
add_action('aal_action_setup_transients', array($this, '_replyToSetUpTransients'));
// Load styles of templates
if (isset($_GET['amazon_auto_links_style'])) {
$GLOBALS['oAmazonAutoLinks_Templates']->loadStyle($_GET['amazon_auto_links_style']);
}
// URL Cloak
$_sQueryKey = $GLOBALS['oAmazonAutoLinks_Option']->arrOptions['aal_settings']['query']['cloak'];
if (isset($_GET[$_sQueryKey])) {
$this->_redirect($_GET[$_sQueryKey]);
}
}
/**
*
* @callback action shutdown
*/
public function _replyToScheduleUpdatingCaches()
{
if (empty($GLOBALS['aAmazonAutoLinks_APIRequestURIs'])) {
return;
}
$_iScheduled = 0;
foreach ($GLOBALS['aAmazonAutoLinks_APIRequestURIs'] as $aExpiredCacheRequest) {
// Schedules the action to run in the background with WP Cron.
$_iScheduled += $this->_scheduleCacheRenewal($aExpiredCacheRequest);
}
if ($_iScheduled) {
AmazonAutoLinks_Shadow::see();
}
}
/**
* Accesses the site in the background at the end of the script execution.
*
* This is used to trigger cron events in the background and sets a static flag so that it ensures it is done only once per page load.
*
* @since 1.0.0
*/
public static function see($aGet = array(), $fIgnoreLock = false)
{
// WP Cron
if (isset($_GET['doing_wp_cron'])) {
return;
}
// WP Heart-beat API
if (isset($GLOBALS['pagenow']) && $GLOBALS['pagenow'] == 'admin-ajax.php') {
return;
}
// Ensures the task is done only once in a page load.
static $_bIsCalled;
if ($_bIsCalled) {
return;
}
$_bIsCalled = true;
// Store the static properties.
self::$_fIgnoreLock = $fIgnoreLock ? $fIgnoreLock : self::$_fIgnoreLock;
self::$_aGet = (array) $aGet + self::$_aGet;
$_sSelfClassName = get_class();
if (did_action('shutdown')) {
self::_replyToAccessSite();
return;
// important as what the action has performed does not mean the action never will be fired again.
}
add_action('shutdown', "{$_sSelfClassName}::_replyToAccessSite", 999);
// do not pass self::_replyToAccessSite.
}