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<?php
// @codingStandardsIgnoreFile
/**
 * s2Member's Page protection routines *(for current Page)*.
 *
 * Copyright: © 2009-2011
 * {@link http://websharks-inc.com/ WebSharks, Inc.}
 * (coded in the USA)
 *
 * Released under the terms of the GNU General Public License.
 * You should have received a copy of the GNU General Public License,
 * along with this software. In the main directory, see: /licensing/
 * If not, see: {@link http://www.gnu.org/licenses/}.
 *
 * @package s2Member\Pages
 * @since 3.5
 */
if(!defined('WPINC')) // MUST have WordPress.
	exit('Do not access this file directly.');

if(!class_exists('c_ws_plugin__s2member_pages'))
{
	/**
	 * s2Member's Page protection routines *(for current Page)*.
	 *
	 * @package s2Member\Pages
	 * @since 3.5
	 */
	class c_ws_plugin__s2member_pages
	{
		/**
		 * Handles Page Level Access permissions *(for current Page)*.
		 *
		 * @package s2Member\Pages
		 * @since 3.5
		 *
		 * @return null Or exits script execution after redirection.
		 */
		public static function check_page_level_access()
		{
			global $post; // ``get_the_ID()`` unavailable outside The Loop.

do_action('ws_plugin__s2member_before_check_page_level_access', get_defined_vars());

$ci       = $GLOBALS['WS_PLUGIN__']['s2member']['o']['ruris_case_sensitive'] ? '' : 'i';
			$excluded = apply_filters('ws_plugin__s2member_check_page_level_access_excluded', FALSE, get_defined_vars());

if(!$excluded && is_page() && is_object($post) && !empty($post->ID) && ($page_id = (int)$post->ID) && $GLOBALS['WS_PLUGIN__']['s2member']['o']['membership_options_page'])
			{
				if(!c_ws_plugin__s2member_systematics::is_wp_systematic_use_page()) // Do NOT touch WordPress Systematics. This excludes all WordPress Systematics.
				{
					$user = (is_user_logged_in() && is_object($user = wp_get_current_user()) && !empty($user->ID)) ? $user : FALSE; // Current User's object.

if($GLOBALS['WS_PLUGIN__']['s2member']['o']['login_welcome_page'] && $page_id === (int)$GLOBALS['WS_PLUGIN__']['s2member']['o']['login_welcome_page'] && c_ws_plugin__s2member_no_cache::no_cache_constants('restricted') && (!$user || !$user->has_cap('access_s2member_level0')) && $page_id !== (int)$GLOBALS['WS_PLUGIN__']['s2member']['o']['membership_options_page'])
						c_ws_plugin__s2member_mo_page::wp_redirect_w_mop_vars('page', $page_id, 'level', 0, $_SERVER['REQUEST_URI'], 'sys').exit ();

else if($GLOBALS['WS_PLUGIN__']['s2member']['o']['login_redirection_override'] && ($login_redirection_uri = c_ws_plugin__s2member_login_redirects::login_redirection_uri($user, 'root-returns-false')) && preg_match('/^'.preg_quote($login_redirection_uri, '/').'$/'.$ci, $_SERVER['REQUEST_URI']) && c_ws_plugin__s2member_no_cache::no_cache_constants('restricted') && (!$user || !$user->has_cap('access_s2member_level0')) && $page_id !== (int)$GLOBALS['WS_PLUGIN__']['s2member']['o']['membership_options_page'])
						c_ws_plugin__s2member_mo_page::wp_redirect_w_mop_vars('page', $page_id, 'level', 0, $_SERVER['REQUEST_URI'], 'sys').exit ();

else if($GLOBALS['WS_PLUGIN__']['s2member']['o']['file_download_limit_exceeded_page'] && $page_id === (int)$GLOBALS['WS_PLUGIN__']['s2member']['o']['file_download_limit_exceeded_page'] && c_ws_plugin__s2member_no_cache::no_cache_constants('restricted') && (!$user || !$user->has_cap('access_s2member_level0')) && $page_id !== (int)$GLOBALS['WS_PLUGIN__']['s2member']['o']['membership_options_page'])
						c_ws_plugin__s2member_mo_page::wp_redirect_w_mop_vars('page', $page_id, 'level', 0, $_SERVER['REQUEST_URI'], 'sys').exit ();

else if(!c_ws_plugin__s2member_systematics::is_systematic_use_page()) // Never restrict Systematics. However, there are 3 exceptions above.
					{
						for($n = $GLOBALS['WS_PLUGIN__']['s2member']['c']['levels']; $n >= 0; $n--) // Page Level restrictions. Go through each Level.
						{
							if($GLOBALS['WS_PLUGIN__']['s2member']['o']['level'.$n.'_pages'] === 'all' && c_ws_plugin__s2member_no_cache::no_cache_constants('restricted') && (!$user || !$user->has_cap('access_s2member_level'.$n)))
								c_ws_plugin__s2member_mo_page::wp_redirect_w_mop_vars('page', $page_id, 'level', $n, $_SERVER['REQUEST_URI']).exit ();

else if(strpos($GLOBALS['WS_PLUGIN__']['s2member']['o']['level'.$n.'_posts'], 'all-') && (in_array('all-page', preg_split('/['."\r\n\t".'\s;,]+/', $GLOBALS['WS_PLUGIN__']['s2member']['o']['level'.$n.'_posts'])) || in_array('all-pages', preg_split('/['."\r\n\t".'\s;,]+/', $GLOBALS['WS_PLUGIN__']['s2member']['o']['level'.$n.'_posts']))) && c_ws_plugin__s2member_no_cache::no_cache_constants('restricted') && (!$user || !$user->has_cap('access_s2member_level'.$n)))
								c_ws_plugin__s2member_mo_page::wp_redirect_w_mop_vars('page', $page_id, 'level', $n, $_SERVER['REQUEST_URI'], 'post').exit ();

else if($GLOBALS['WS_PLUGIN__']['s2member']['o']['level'.$n.'_pages'] && in_array($page_id, preg_split('/['."\r\n\t".'\s;,]+/', $GLOBALS['WS_PLUGIN__']['s2member']['o']['level'.$n.'_pages'])) && c_ws_plugin__s2member_no_cache::no_cache_constants('restricted') && (!$user || !$user->has_cap('access_s2member_level'.$n)))
								c_ws_plugin__s2member_mo_page::wp_redirect_w_mop_vars('page', $page_id, 'level', $n, $_SERVER['REQUEST_URI']).exit ();
						}
						if(has_tag()) // Here we take a look to see if this Page has any Tags. If so, we need to run the full set of routines against Tags also.
						{
							for($n = $GLOBALS['WS_PLUGIN__']['s2member']['c']['levels']; $n >= 0; $n--) // Tag Level restrictions (possibly through Page Tagger). Go through each Level.
							{
								if($GLOBALS['WS_PLUGIN__']['s2member']['o']['level'.$n.'_ptags'] === 'all' && c_ws_plugin__s2member_no_cache::no_cache_constants('restricted') && (!$user || !$user->has_cap('access_s2member_level'.$n)))
									c_ws_plugin__s2member_mo_page::wp_redirect_w_mop_vars('page', $page_id, 'level', $n, $_SERVER['REQUEST_URI'], 'ptag').exit ();

else if($GLOBALS['WS_PLUGIN__']['s2member']['o']['level'.$n.'_ptags'] && has_tag(preg_split('/['."\r\n\t".';,]+/', $GLOBALS['WS_PLUGIN__']['s2member']['o']['level'.$n.'_ptags'])) && c_ws_plugin__s2member_no_cache::no_cache_constants('restricted') && (!$user || !$user->has_cap('access_s2member_level'.$n)))
									c_ws_plugin__s2member_mo_page::wp_redirect_w_mop_vars('page', $page_id, 'level', $n, $_SERVER['REQUEST_URI'], 'ptag').exit ();
							}
						}
						for($n = $GLOBALS['WS_PLUGIN__']['s2member']['c']['levels']; $n >= 0; $n--) // URIs. Go through each Level.
						{
							if($GLOBALS['WS_PLUGIN__']['s2member']['o']['level'.$n.'_ruris']) // URIs configured at this Level?

foreach(preg_split('/['."\r\n\t".']+/', c_ws_plugin__s2member_ruris::fill_ruri_level_access_rc_vars($GLOBALS['WS_PLUGIN__']['s2member']['o']['level'.$n.'_ruris'], $user)) as $str)
									if($str && preg_match('/'.preg_quote($str, '/').'/'.$ci, $_SERVER['REQUEST_URI']) && c_ws_plugin__s2member_no_cache::no_cache_constants('restricted') && (!$user || !$user->has_cap('access_s2member_level'.$n)))
										c_ws_plugin__s2member_mo_page::wp_redirect_w_mop_vars('page', $page_id, 'level', $n, $_SERVER['REQUEST_URI'], 'ruri').exit ();
						}
						if(is_array($ccaps_req = get_post_meta($page_id, 's2member_ccaps_req', TRUE)) && !empty($ccaps_req) && c_ws_plugin__s2member_no_cache::no_cache_constants('restricted'))
						{
							foreach($ccaps_req as $ccap) // The ``$user`` MUST satisfy ALL Custom Capability requirements. Stored as an array of Custom Capabilities.
								if(strlen($ccap) && (!$user || !$user->has_cap('access_s2member_ccap_'.$ccap)) /* Does this ``$user``, have this Custom Capability? */)
									c_ws_plugin__s2member_mo_page::wp_redirect_w_mop_vars('page', $page_id, 'ccap', $ccap, $_SERVER['REQUEST_URI'], 'ccap').exit ();
						}
						if($GLOBALS['WS_PLUGIN__']['s2member']['o']['specific_ids'] && in_array($page_id, preg_split('/['."\r\n\t".'\s;,]+/', $GLOBALS['WS_PLUGIN__']['s2member']['o']['specific_ids'])) && c_ws_plugin__s2member_no_cache::no_cache_constants('restricted') && !c_ws_plugin__s2member_sp_access::sp_access($page_id))
							c_ws_plugin__s2member_mo_page::wp_redirect_w_mop_vars('page', $page_id, 'sp', $page_id, $_SERVER['REQUEST_URI'], 'sp').exit ();
					}
					do_action('ws_plugin__s2member_during_check_page_level_access', get_defined_vars());
				}
			}
			do_action('ws_plugin__s2member_after_check_page_level_access', get_defined_vars());
		}
	}
}

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