/**
  * Verify that correct nonce was used with time limit.
  *
  * The user is given an amount of time to use the token, so therefore, since the
  * UID and $action remain the same, the independent variable is the time.
  *
  * @since 2.0.3
  *
  * @param string $nonce Nonce that was used in the form to verify
  * @param string|int $action Should give context to what is taking place and be the same when nonce was created.
  *
  * @return false|int False if the nonce is invalid, 1 if the nonce is valid and generated between
  *                   0-12 hours ago, 2 if the nonce is valid and generated between 12-24 hours ago.
  */
 function wp_verify_nonce($nonce, $action = -1)
 {
     $nonce = (string) $nonce;
     $user = wp_get_current_user();
     $uid = (int) $user->ID;
     if (!$uid) {
         /**
          * Filter whether the user who generated the nonce is logged out.
          *
          * @since 3.5.0
          *
          * @param int $uid ID of the nonce-owning user.
          * @param string $action The nonce action.
          */
         $uid = apply_filters('nonce_user_logged_out', $uid, $action);
     }
     if (empty($nonce)) {
         die('<mainwp>' . base64_encode(json_encode(array('error' => 'You dont send nonce: ' . $action))) . '</mainwp>');
     }
     $token = wp_get_session_token();
     $i = wp_nonce_tick();
     // Nonce generated 0-12 hours ago
     $expected = substr(wp_hash($i . '|' . $action . '|' . $uid . '|' . $token, 'nonce'), -12, 10);
     if (hash_equals($expected, $nonce)) {
         return 1;
     }
     // Nonce generated 12-24 hours ago
     $expected = substr(wp_hash($i - 1 . '|' . $action . '|' . $uid . '|' . $token, 'nonce'), -12, 10);
     if (hash_equals($expected, $nonce)) {
         return 2;
     }
     // Invalid nonce
     die('<mainwp>' . base64_encode(json_encode(array('error' => 'Invalid nonce. Try use: ' . $action))) . '</mainwp>');
 }

	/**
	 * Validate the user token.
	 *
	 * @since 0.1-dev
	 *
	 * @param int    $user_id User ID.
	 * @param string $token User token.
	 * @return boolean
	 */
	public function validate_token( $user_id, $token ) {
		$hashed_token = get_user_meta( $user_id, self::TOKEN_META_KEY, true );
		if ( wp_hash( $token ) !== $hashed_token ) {
			$this->delete_token( $user_id );
			return false;
		}
		return true;
	}

 /**
  * Creates a custom nonce in order to secure feed
  * retrieval requests.
  */
 public function get_chunk_nonce()
 {
     $nonce = wp_hash(time());
     pf_log('Create the retrieval nonce: ');
     pf_log($nonce);
     update_option('chunk_nonce', $nonce);
     return $nonce;
 }

function recaptcha_wp_hash_comment($id)
{
    global $recaptcha_opt;
    if (function_exists('wp_hash')) {
        return wp_hash(RECAPTCHA_WP_HASH_COMMENT . $id);
    } else {
        return md5(RECAPTCHA_WP_HASH_COMMENT . $recaptcha_opt['privkey'] . $id);
    }
}

 private function get_temporary_file_path($filename)
 {
     $uploads_dir = $this->settings->get_runtime_option('awpcp-uploads-dir');
     $tempory_dir_path = implode(DIRECTORY_SEPARATOR, array($uploads_dir, 'tmp'));
     $pathinfo = awpcp_utf8_pathinfo($filename);
     $new_name = wp_hash($pathinfo['basename']) . '.' . $pathinfo['extension'];
     $unique_filename = wp_unique_filename($tempory_dir_path, $new_name);
     return $tempory_dir_path . DIRECTORY_SEPARATOR . $unique_filename;
 }

function wptouch_create_anonymous_nonce($action)
{
    // Creates a valid WordPress nonce for anonymous requests.
    $uid = 0;
    $token = '';
    $i = wp_nonce_tick();
    $nonce = substr(wp_hash($i . '|' . $action . '|' . $uid . '|' . $token, 'nonce'), -12, 10);
    return $nonce;
}

 function get_image_uri($image, $params)
 {
     $params['image'] = $image;
     $uri = $this->object->get_uri_from_params($params);
     if (substr($uri, -1) != '/') {
         $uri .= '/';
     }
     $uri .= wp_hash($uri) . '/';
     return $uri;
 }

 public function verify_nonce($nonce, $action)
 {
     $i = wp_nonce_tick();
     if (substr(wp_hash($i . $action, 'nonce'), -12, 10) === $nonce) {
         return true;
     }
     if (substr(wp_hash($i - 1 . $action, 'nonce'), -12, 10) === $nonce) {
         return true;
     }
     return false;
 }

function wp_create_nonce($action = -1)
{
    $user = wp_get_current_user();
    $uid = (int) $user->ID;
    if (!$uid) {
        /** This filter is documented in wp-includes/pluggable.php */
        $uid = apply_filters('nonce_user_logged_out', $uid, $action);
    }
    $token = wp_get_session_token();
    $i = wp_nonce_tick();
    return substr(wp_hash($i . '|' . $action . '|' . $uid . '|' . $token, 'nonce'), -12, 10);
}

 static function process_form()
 {
     // Invoked at init via add_action
     // Do we process one of our forms now?
     if (isset($_POST['si_contact_action']) && 'send' == $_POST['si_contact_action'] && isset($_POST['form_id']) && is_numeric($_POST['form_id'])) {
         self::$form_id_num = (int) $_POST['form_id'];
     } else {
         // Error: no form id in $_POST
         return;
     }
     // prevent double action
     if (self::$form_processed) {
         return;
     }
     // begin logic that redirects on forged form token.
     $token = 'ok';
     if (!isset($_POST['fs_postonce_' . self::$form_id_num]) || empty($_POST['fs_postonce_' . self::$form_id_num]) || strpos($_POST['fs_postonce_' . self::$form_id_num], ',') === false) {
         $token = 'bad';
     }
     $vars = explode(',', $_POST['fs_postonce_' . self::$form_id_num]);
     if (empty($vars[0]) || empty($vars[1]) || !preg_match("/^[0-9]+\$/", $vars[1])) {
         $token = 'bad';
     }
     if (wp_hash($vars[1]) != $vars[0]) {
         $token = 'bad';
     }
     if ($token == 'bad') {
         // forgery token was no good,  so redirect and blank the form
         self::$form_action_url = FSCF_Display::get_form_action_url();
         wp_redirect(self::$form_action_url);
         exit;
     }
     self::$global_options = FSCF_Util::get_global_options();
     self::$form_options = FSCF_Util::get_form_options(self::$form_id_num, $use_defauilts = true);
     // Do some security checks
     self::check_security();
     self::validate_data();
     self::$form_processed = true;
     if (empty(self::$form_errors)) {
         // Send the email, cleanup attachments, redirect.
         self::prepare_email();
         if (self::$form_options['email_keep_attachments'] != 'true') {
             self::email_sent_cleanup_attachments();
         }
         self::email_sent_redirect();
     }
     if (!empty(self::$uploaded_files)) {
         // unlink (delete) attachment temp files
         foreach ((array) self::$uploaded_files as $path) {
             @unlink($path);
         }
     }
 }

 /**
  * Local nonce verification.
  * WordPress uses the UID and sometimes I don't want that
  * Verify that correct nonce was used with time limit.
  *
  * The user is given an amount of time to use the token, so therefore, since the
  * $action remain the same, the independent variable is the time.
  *
  * @param string     $nonce  Nonce that was used in the form to verify
  * @param string|int $action Should give context to what is taking place and be the same when nonce was created.
  *
  * @return bool Whether the nonce check passed or failed.
  */
 public static function verifyNonce($nonce, $action = -1)
 {
     $r = false;
     $i = wp_nonce_tick();
     // Nonce generated 0-12 hours ago
     if (substr(wp_hash($i . $action, 'nonce'), -12, 10) == $nonce) {
         $r = 1;
     } elseif (substr(wp_hash($i - 1 . $action, 'nonce'), -12, 10) == $nonce) {
         // Nonce generated 12-24 hours ago
         $r = 2;
     }
     return $r;
 }

 public function __construct()
 {
     global $woocommerce;
     $this->token = sanitize_file_name(wp_hash(VINDI_IDENTIFIER));
     $this->init_form_fields();
     $this->init_settings();
     $this->debug = $this->get_option('debug') == 'yes' ? true : false;
     $this->logger = new Vindi_Logger(VINDI_IDENTIFIER, $this->debug);
     $this->api = new Vindi_API($this->get_api_key(), $this->logger);
     $this->woocommerce = $woocommerce;
     add_filter('woocommerce_payment_gateways', array(&$this, 'add_gateway'));
     add_action('admin_notices', array(&$this, 'manual_renew_is_deactivated'));
     add_action('admin_notices', array(&$this, 'allow_switching_is_activated'));
     if (is_admin()) {
         add_filter('woocommerce_settings_tabs_array', array(&$this, 'add_settings_tab'), 50);
         add_action('woocommerce_settings_tabs_settings_vindi', array(&$this, 'settings_tab'));
         add_action('woocommerce_update_options_settings_vindi', array(&$this, 'process_admin_options'));
     }
 }

 /**
  * Filter the unique post slug.
  *
  * @param string $slug          The post slug.
  * @param int    $post_ID       Post ID.
  * @param string $post_status   The post status.
  * @param string $post_type     Post type.
  * @param int    $post_parent   Post parent ID
  * @param string $original_slug The original post slug.
  */
 public static function private_unique_post_slug($slug, $post_ID, $post_status, $post_type)
 {
     $hashed_post_slug = wp_hash($slug . microtime());
     // Change every post that has auto-draft
     if (false !== strpos($slug, 'auto-draft')) {
         return $hashed_post_slug;
         // add microtime to be unique
     }
     // don't change on front-end edits.
     if (in_array($post_status, array(SI_Estimate::STATUS_PENDING, SI_Estimate::STATUS_APPROVED, SI_Estimate::STATUS_DECLINED))) {
         return $slug;
     }
     // make sure it's a new post
     if ((!isset($_POST['post_name']) || $_POST['post_name'] == '') && $post_type == SI_Estimate::POST_TYPE) {
         return $hashed_post_slug;
         // add microtime to be unique
     }
     return $slug;
 }

function bp_autologin_on_activation($user_id, $key, $user)
{
    global $bp, $wpdb;
    //simulate Bp activation
    /* Check for an uploaded avatar and move that to the correct user folder, just do what bp does */
    if (is_multisite()) {
        $hashed_key = wp_hash($key);
    } else {
        $hashed_key = wp_hash($user_id);
    }
    /* Check if the avatar folder exists. If it does, move rename it, move it and delete the signup avatar dir */
    if (file_exists(BP_AVATAR_UPLOAD_PATH . '/avatars/signups/' . $hashed_key)) {
        @rename(BP_AVATAR_UPLOAD_PATH . '/avatars/signups/' . $hashed_key, BP_AVATAR_UPLOAD_PATH . '/avatars/' . $user_id);
    }
    bp_core_add_message(__('Your account is now active!', 'buddypress'));
    $bp->activation_complete = true;
    //now login and redirect
    wp_set_auth_cookie($user_id, true, false);
    bp_core_redirect(apply_filters("bpdev_autoactivate_redirect_url", bp_core_get_user_domain($user_id), $user_id));
}

 function __construct()
 {
     global $table_prefix, $wpdb;
     $rand = substr(wp_hash(DB_PASSWORD), 0, 16);
     global $wpdbb_content_dir, $wpdbb_content_url;
     $wpdbb_content_dir = defined('WP_CONTENT_DIR') ? WP_CONTENT_DIR : ABSPATH . 'wp-content';
     $wpdbb_content_url = defined('WP_CONTENT_URL') ? WP_CONTENT_URL : get_option('siteurl') . '/wp-content';
     if (!defined('WP_BACKUP_DIR')) {
         define('WP_BACKUP_DIR', $wpdbb_content_dir . '/backup-' . $rand . '/');
     }
     if (!defined('WP_BACKUP_URL')) {
         define('WP_BACKUP_URL', $wpdbb_content_url . '/backup-' . $rand . '/');
     }
     if (!defined('ROWS_PER_SEGMENT')) {
         define('ROWS_PER_SEGMENT', 2000);
     }
     $datum = date("Ymd_B");
     $this->backup_filename = DB_NAME . "_{$table_prefix}{$datum}." . substr(wp_hash(DB_NAME . "_{$table_prefix}{$datum}"), 0, 8) . ".sql";
     $this->backup_dir = trailingslashit(WP_BACKUP_DIR);
     $this->basename = 'wp-db-backup';
     $this->referer_check_key = $this->basename . '-download_' . DB_NAME;
 }

 function index_action()
 {
     $dynthumbs = $this->get_registry()->get_utility('I_Dynamic_Thumbnails_Manager');
     $uri = $_SERVER['REQUEST_URI'];
     $params = $dynthumbs->get_params_from_uri($uri);
     $request_params = $params;
     if ($params != null) {
         $storage = $this->get_registry()->get_utility('I_Gallery_Storage');
         // Note, URLs should always include quality setting when returned by Gallery Storage component
         // this sanity check is mostly for manually testing URLs
         if (!isset($params['quality'])) {
             // Note: there's a problem when doing this as using the same set of parameters to *retrieve* the image path/URL will lead to a different filename than the one tha was used to *generate* it (which went through here)
             // The statement above about URLs always containing quality setting is not true anymore, this is because we need to retrieve default quality from the imgQuality and thumbquality settings, depending on "full" or "thumbnail" request in the ngglegacy storage
             //$params['quality'] = 100;
         }
         $image_id = $params['image'];
         $size = $dynthumbs->get_size_name($params);
         $abspath = $storage->get_image_abspath($image_id, $size, true);
         $valid = true;
         // Render invalid image if hash check fails
         if ($abspath == null) {
             $uri_plain = $dynthumbs->get_uri_from_params($request_params);
             $hash = wp_hash($uri_plain);
             if (strpos($uri, $hash) === false) {
                 $valid = false;
                 $filename = $this->object->find_static_file('invalid_image.png');
                 $this->set_content_type('image/png');
                 readfile($filename);
                 $this->render();
             }
         }
         if ($valid) {
             $storage->render_image($image_id, $size);
         }
     }
 }

 public static function failed_state_validation($form_id, $field, $value)
 {
     global $_gf_state;
     //if field can be populated dynamically, disable state validation
     if ($field->allowsPrepopulate) {
         return false;
     } else {
         if (!GFCommon::is_product_field($field->type) && $field->type != 'donation') {
             return false;
         } else {
             if (!in_array($field->inputType, array('singleshipping', 'singleproduct', 'hiddenproduct', 'checkbox', 'radio', 'select'))) {
                 return false;
             }
         }
     }
     if (!isset($_gf_state)) {
         $state = json_decode(base64_decode($_POST["state_{$form_id}"]), true);
         if (!$state || sizeof($state) != 2) {
             return true;
         }
         //making sure state wasn't tampered with by validating checksum
         $checksum = wp_hash(crc32($state[0]));
         if ($checksum !== $state[1]) {
             return true;
         }
         $_gf_state = json_decode($state[0], true);
     }
     if (!is_array($value)) {
         $value = array($field->id => $value);
     }
     foreach ($value as $key => $input_value) {
         $state = isset($_gf_state[$key]) ? $_gf_state[$key] : false;
         //converting price to a number for single product fields and single shipping fields
         if (in_array($field->inputType, array('singleproduct', 'hiddenproduct')) && $key == $field->id . '.2' || $field->inputType == 'singleshipping') {
             $input_value = GFCommon::to_number($input_value);
         }
         $sanitized_input_value = wp_kses($input_value, wp_kses_allowed_html('post'));
         $hash = wp_hash($input_value);
         $sanitized_hash = wp_hash($sanitized_input_value);
         $fails_hash = strlen($input_value) > 0 && $state !== false && (is_array($state) && !in_array($hash, $state) || !is_array($state) && $hash != $state);
         $fails_sanitized_hash = strlen($sanitized_input_value) > 0 && $state !== false && (is_array($state) && !in_array($sanitized_hash, $state) || !is_array($state) && $sanitized_hash != $state);
         if ($fails_hash && $fails_sanitized_hash) {
             return true;
         }
     }
     return false;
 }

/**
 * Get a log file path
 *
 * @since 2.2
 * @param string $handle name
 * @return string the log file path
 */
function wc_get_log_file_path($handle)
{
    return trailingslashit(WC_LOG_DIR) . $handle . '-' . sanitize_file_name(wp_hash($handle)) . '.log';
}

 /**
  * @param string $readmePath
  * @return bool
  */
 public static function showReadme($readmePath = null)
 {
     if ($readmePath === null) {
         $readmePath = ABSPATH . 'readme.html';
     }
     $readmePathInfo = pathinfo($readmePath);
     require_once ABSPATH . WPINC . '/pluggable.php';
     $hiddenReadmeFile = $readmePathInfo['dirname'] . '/' . $readmePathInfo['filename'] . '.' . wp_hash('readme') . '.' . $readmePathInfo['extension'];
     if (file_exists($hiddenReadmeFile)) {
         return @rename($hiddenReadmeFile, $readmePath);
     }
     return false;
 }

 function wp_create_nonce($action = -1)
 {
     $user = wp_get_current_user();
     $uid = (int) $user->id;
     $i = ceil(time() / 43200);
     return substr(wp_hash($i . $action . $uid), -12, 10);
 }