<?php

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/**

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* Main class for WP-Admin hooks

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*

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* This class loads all of our backend hooks and sets up admin interfaces

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*

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* @subpackage Admin interfaces

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* @author Sibin Grasic

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* @since 1.0

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* @var version - plugin version

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* @var opts - plugin options

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*/

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class Meks_TA_Admin {

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private $version;

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private $opts;

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/**

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* Meks TA Admin constructor

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*

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* Constructor first checks for the plugin version, and if this is the first activation, plugin adds version info in the DB with autoload option set to false.

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* That way we can easily update across versions, if we decide to add options to the plugin, or change plugin settings and defaults

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*

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* @author Sibin Grasic

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* @since 1.0

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*/

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public function __construct() {

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if ( $ta_ver = get_option( 'meks_ta_ver' ) ) {

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$this->version = $ta_ver;

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} else {

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$ta_ver = MEKS_TA_VER;

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add_option( 'meks_ta_ver', $ta_ver, '', 'no' );

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}

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$default_opts = array(

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'active' => array( 'date' => true, 'time' => true, 'modified_date' => false, 'modified_time' => false ),

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'position' => 'after',

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'time' => array( 'number' => '12', 'type' => 'months' ),

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'ago_label' => ''

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);

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$default_opts = apply_filters( 'meks_ta_modify_default_opts', $default_opts );

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$this->opts = get_option( 'meks_ta_opts', $default_opts );

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$this->opts = $this->parse_args( $this->opts, $default_opts);

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add_action( 'admin_init', array( $this, 'register_settings' ) );

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add_filter( 'plugin_action_links_'.MEKS_TA_BASENAME, array( &$this, 'add_settings_link' ) );

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}

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/**

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* Function that is hooked into the admin initialisation and registers settings

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*

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* @return void

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* @author Sibin Grasic

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* @since 1.0

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*/

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public function register_settings() {

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add_settings_section( 'meks_ta_opts', 'Meks Time Ago Options', array( &$this, 'settings_section_info' ), 'general' );

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add_settings_field( 'meks_ta_opts[active]', __( 'Apply "time ago" format to', 'meks-time-ago' ), array( &$this, 'active_callback' ), 'general', 'meks_ta_opts', $this->opts['active'] );

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add_settings_field( 'meks_ta_opts[time]', __( 'Apply to posts not older than', 'meks-time-ago' ), array( &$this, 'time_callback' ), 'general', 'meks_ta_opts', $this->opts['time'] );

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add_settings_field( 'meks_ta_opts[position]', __( 'Place "ago" word', 'meks-time-ago' ), array( &$this, 'position_callback' ), 'general', 'meks_ta_opts', $this->opts['position'] );

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add_settings_field( 'meks_ta_opts[ago_label]', __( 'Rewrite "ago" word', 'meks-time-ago' ), array( &$this, 'ago_label_callback' ), 'general', 'meks_ta_opts', $this->opts['ago_label'] );

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register_setting( 'general', 'meks_ta_opts', array( &$this, 'sanitize_opts' ) );

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}

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/**

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* Function that displays the section heading information

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*

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* @author Sibin Grasic

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* @since 1.0

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*/

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public function settings_section_info() {

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echo '<div id="mkstimeago"></div>';

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}

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/**

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* Function that displays the plugin activation checkbox

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*

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* @author Sibin Grasic

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* @since 1.0

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*/

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public function active_callback( $active ) {

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$checked_date = checked( $active['date'], 1, false );

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$checked_time = checked( $active['time'], 1, false );

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$checked_modified_date = checked( $active['modified_date'], 1, false );

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$checked_modified_time = checked( $active['modified_time'], 1, false );

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echo "<input type=\"checkbox\" name=\"meks_ta_opts[active][date]\" ${checked_date}>".__( 'Date', 'meks-time-ago' ).'&nbsp;&nbsp;&nbsp;';

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echo "<input type=\"checkbox\" name=\"meks_ta_opts[active][time]\" ${checked_time}>".__( 'Time', 'meks-time-ago' ).'&nbsp;&nbsp;&nbsp;';

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echo "<input type=\"checkbox\" name=\"meks_ta_opts[active][modified_date]\" ${checked_modified_date}>".__( 'Date (modified)', 'meks-time-ago' ).'&nbsp;&nbsp;&nbsp;';

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echo "<input type=\"checkbox\" name=\"meks_ta_opts[active][modified_time]\" ${checked_modified_time}>".__( 'Time (modified)', 'meks-time-ago' );

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}

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/**

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* Function that displays the string position select box

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*

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* @author Sibin Grasic

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* @since 1.0

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*/

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public function position_callback( $position ) {

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$positions = apply_filters( 'meks_ta_position_opts', array( 'after' => __( 'After (1 hour ago)', 'meks-time-ago' ), 'before' => __( 'Before (ago 1 hour)', 'meks-time-ago' ) ) );

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$html = '<select name="meks_ta_opts[position]">';

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foreach ( $positions as $value => $label ) {

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$selected = selected( $position, $value, false );

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$html.= '<option value="'.$value.'" '.$selected.'>'.$label.'</option>';

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}

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$html .= '</select>';

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echo $html;

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}

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/**

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* Function that displays the hours input

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*

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* @author Sibin Grasic

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* @since 1.0

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*/

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public function time_callback( $time ) {

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$type = $time['type'];

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$time = $time['number'];

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$minutes = $hours = $days = $months = '';

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$$type = 'selected';

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echo "<input type=\"number\" name=\"meks_ta_opts[time][number]\" value=\"${time}\" class=\"small-text\" style=\"height: 28px; vertical-align: top;\">";

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echo sprintf( '<select name="meks_ta_opts[time][type]"><option value="minutes" %1$s>%2$s</option><option value="hours" %3$s>%4$s</option><option value="days" %5$s>%6$s</option><option value="months" %7$s>%8$s</option>',

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$minutes,

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__( 'Minutes', 'meks-time-ago' ),

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$hours,

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__( 'Hours', 'meks-time-ago' ),

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$days,

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__( 'Days', 'meks-time-ago' ),

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$months,

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__( 'Months', 'meks-time-ago' )

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);

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}

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/**

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* Display ago label setting

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*

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* @since 1.1

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*/

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public function ago_label_callback( $ago_label ) {

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echo '<input type="text" name="meks_ta_opts[ago_label]" value="'.esc_attr($ago_label).'"/>';

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}

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/**

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* Function that sanitizes plugin options on save

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*

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* @author Sibin Grasic

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* @since 1.0

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* @param array $opts Meks Time Ago options

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* @return array $opts Sanitized options array

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*

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*/

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public function sanitize_opts( $opts ) {

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$options_active = array('date', 'time', 'modified_date', 'modified_time');

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foreach ($options_active as $option_active) {

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if ( isset( $opts['active'][$option_active] )) {

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$opts['active'][$option_active] = true;

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} else {

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$opts['active'][$option_active] = false;

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}

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}

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$opts['ago_label'] = esc_html( $opts['ago_label'] );

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return $opts;

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}

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public function add_settings_link( $links ) {

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$admin_url = admin_url();

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$link = array( '<a href="'.$admin_url.'options-general.php#mkstimeago">Settings</a>' );

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return array_merge( $links, $link );

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}

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/**

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* Parse args ( merge arrays )

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*

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* Similar to wp_parse_args() but extended to also merge multidimensional arrays

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*

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* @param array $a - set of values to merge

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* @param array $b - set of default values

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* @return array Merged set of elements

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* @since 1.1.3

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*/

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function parse_args( &$a, $b ) {

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$a = (array) $a;

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$b = (array) $b;

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$r = $b;

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foreach ( $a as $k => &$v ) {

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if ( is_array( $v ) && isset( $r[ $k ] ) ) {

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$r[ $k ] = $this->parse_args( $v, $r[ $k ] );

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} else {

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$r[ $k ] = $v;

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}

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}

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return $r;

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}

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}

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?>

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