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6ac1d4ec1a
When viewing Site Health for a multisite install, there are a few recommendations that are not appropriate and could have negative implications for other sites on the install if the administrator follows the advice provided. For example, Site Health recommends that inactive plugins and themes for a site should be removed. On a single site install, this is a great recommendation. However, on a multisite install, inactive plugins and themes for one site should not be removed because they could be active for other sites on the network. This change also disables the `test_wp_version_check_attached()` test for multisite. This test checks for the presence of the `wp_version_check()` function on the `wp_version_check` hook, which is not present for every site on multisite. Reviewed by jeremyfelt and desrosj. Props iandunn, Clorith, azaozz, jeremyfelt. Fixes #47084. Built from https://develop.svn.wordpress.org/trunk@45275 git-svn-id: http://core.svn.wordpress.org/trunk@45084 1a063a9b-81f0-0310-95a4-ce76da25c4cd
450 lines
12 KiB
PHP
450 lines
12 KiB
PHP
<?php
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/**
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* Class for testing automatic updates in the WordPress code.
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*
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* @package WordPress
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* @subpackage Site_Health
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* @since 5.2.0
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*/
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class WP_Site_Health_Auto_Updates {
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/**
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* WP_Site_Health_Auto_Updates constructor.
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* @since 5.2.0
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*/
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public function __construct() {
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include_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
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}
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/**
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* Run tests to determine if auto-updates can run.
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*
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* @since 5.2.0
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*
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* @return array The test results.
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*/
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public function run_tests() {
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$tests = array(
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$this->test_constants( 'DISALLOW_FILE_MODS', false ),
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$this->test_constants( 'AUTOMATIC_UPDATER_DISABLED', false ),
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$this->test_constants( 'WP_AUTO_UPDATE_CORE', true ),
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$this->test_wp_version_check_attached(),
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$this->test_filters_automatic_updater_disabled(),
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$this->test_if_failed_update(),
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$this->test_vcs_abspath(),
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$this->test_check_wp_filesystem_method(),
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$this->test_all_files_writable(),
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$this->test_accepts_dev_updates(),
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$this->test_accepts_minor_updates(),
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);
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$tests = array_filter( $tests );
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$tests = array_map(
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function( $test ) {
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$test = (object) $test;
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if ( empty( $test->severity ) ) {
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$test->severity = 'warning';
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}
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return $test;
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},
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$tests
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);
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return $tests;
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}
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/**
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* Test if auto-updates related constants are set correctly.
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*
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* @since 5.2.0
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*
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* @param string $constant The name of the constant to check.
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* @param bool $value The value that the constant should be, if set.
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* @return array The test results.
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*/
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public function test_constants( $constant, $value ) {
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if ( defined( $constant ) && constant( $constant ) != $value ) {
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return array(
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'description' => sprintf(
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/* translators: %s: Name of the constant used. */
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__( 'The %s constant is defined and enabled.' ),
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"<code>$constant</code>"
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),
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'severity' => 'fail',
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);
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}
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}
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/**
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* Check if updates are intercepted by a filter.
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*
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* @since 5.2.0
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*
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* @return array The test results.
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*/
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public function test_wp_version_check_attached() {
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if ( ! is_main_site() ) {
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return;
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}
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$cookies = wp_unslash( $_COOKIE );
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$timeout = 10;
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$headers = array(
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'Cache-Control' => 'no-cache',
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);
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// Include Basic auth in loopback requests.
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if ( isset( $_SERVER['PHP_AUTH_USER'] ) && isset( $_SERVER['PHP_AUTH_PW'] ) ) {
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$headers['Authorization'] = 'Basic ' . base64_encode( wp_unslash( $_SERVER['PHP_AUTH_USER'] ) . ':' . wp_unslash( $_SERVER['PHP_AUTH_PW'] ) );
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}
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$url = add_query_arg(
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array(
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'health-check-test-wp_version_check' => true,
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),
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admin_url( 'site-health.php' )
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);
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$test = wp_remote_get( $url, compact( 'cookies', 'headers', 'timeout' ) );
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if ( is_wp_error( $test ) ) {
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return array(
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'description' => sprintf(
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/* translators: %s: Name of the filter used. */
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__( 'Could not confirm that the %s filter is available.' ),
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'<code>wp_version_check()</code>'
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),
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'severity' => 'warning',
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);
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}
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$response = wp_remote_retrieve_body( $test );
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if ( 'yes' !== $response ) {
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return array(
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'description' => sprintf(
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/* translators: %s: Name of the filter used. */
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__( 'A plugin has prevented updates by disabling %s.' ),
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'<code>wp_version_check()</code>'
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),
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'severity' => 'fail',
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);
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}
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}
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/**
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* Check if automatic updates are disabled by a filter.
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*
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* @since 5.2.0
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*
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* @return array The test results.
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*/
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public function test_filters_automatic_updater_disabled() {
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if ( apply_filters( 'automatic_updater_disabled', false ) ) {
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return array(
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'description' => sprintf(
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/* translators: %s: Name of the filter used. */
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__( 'The %s filter is enabled.' ),
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'<code>automatic_updater_disabled</code>'
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),
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'severity' => 'fail',
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);
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}
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}
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/**
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* Check if automatic updates have tried to run, but failed, previously.
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*
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* @since 5.2.0
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*
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* @return array|bool The test results. false if the auto updates failed.
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*/
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function test_if_failed_update() {
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$failed = get_site_option( 'auto_core_update_failed' );
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if ( ! $failed ) {
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return false;
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}
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if ( ! empty( $failed['critical'] ) ) {
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$description = __( 'A previous automatic background update ended with a critical failure, so updates are now disabled.' );
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$description .= ' ' . __( 'You would have received an email because of this.' );
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$description .= ' ' . __( "When you've been able to update using the \"Update Now\" button on Dashboard > Updates, we'll clear this error for future update attempts." );
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$description .= ' ' . sprintf(
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/* translators: %s: Code of error shown. */
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__( 'The error code was %s.' ),
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'<code>' . $failed['error_code'] . '</code>'
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);
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return array(
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'description' => $description,
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'severity' => 'warning',
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);
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}
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$description = __( 'A previous automatic background update could not occur.' );
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if ( empty( $failed['retry'] ) ) {
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$description .= ' ' . __( 'You would have received an email because of this.' );
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}
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$description .= ' ' . __( "We'll try again with the next release." );
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$description .= ' ' . sprintf(
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/* translators: %s: Code of error shown. */
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__( 'The error code was %s.' ),
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'<code>' . $failed['error_code'] . '</code>'
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);
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return array(
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'description' => $description,
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'severity' => 'warning',
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);
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}
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/**
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* Check if WordPress is controlled by a VCS (Git, Subversion etc).
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*
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* @since 5.2.0
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*
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* @return array The test results.
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*/
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public function test_vcs_abspath() {
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$context_dirs = array( ABSPATH );
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$vcs_dirs = array( '.svn', '.git', '.hg', '.bzr' );
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$check_dirs = array();
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foreach ( $context_dirs as $context_dir ) {
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// Walk up from $context_dir to the root.
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do {
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$check_dirs[] = $context_dir;
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// Once we've hit '/' or 'C:\', we need to stop. dirname will keep returning the input here.
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if ( dirname( $context_dir ) == $context_dir ) {
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break;
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}
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// Continue one level at a time.
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} while ( $context_dir = dirname( $context_dir ) );
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}
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$check_dirs = array_unique( $check_dirs );
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// Search all directories we've found for evidence of version control.
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foreach ( $vcs_dirs as $vcs_dir ) {
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foreach ( $check_dirs as $check_dir ) {
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// phpcs:ignore
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if ( $checkout = @is_dir( rtrim( $check_dir, '\\/' ) . "/$vcs_dir" ) ) {
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break 2;
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}
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}
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}
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if ( $checkout && ! apply_filters( 'automatic_updates_is_vcs_checkout', true, ABSPATH ) ) {
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return array(
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'description' => sprintf(
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// translators: 1: Folder name. 2: Version control directory. 3: Filter name.
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__( 'The folder %1$s was detected as being under version control (%2$s), but the %3$s filter is allowing updates.' ),
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'<code>' . $check_dir . '</code>',
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"<code>$vcs_dir</code>",
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'<code>automatic_updates_is_vcs_checkout</code>'
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),
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'severity' => 'info',
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);
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}
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if ( $checkout ) {
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return array(
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'description' => sprintf(
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// translators: 1: Folder name. 2: Version control directory.
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__( 'The folder %1$s was detected as being under version control (%2$s).' ),
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'<code>' . $check_dir . '</code>',
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"<code>$vcs_dir</code>"
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),
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'severity' => 'fail',
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);
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}
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return array(
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'description' => __( 'No version control systems were detected.' ),
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'severity' => 'pass',
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);
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}
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/**
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* Check if we can access files without providing credentials.
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*
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* @since 5.2.0
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*
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* @return array The test results.
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*/
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function test_check_wp_filesystem_method() {
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$skin = new Automatic_Upgrader_Skin;
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$success = $skin->request_filesystem_credentials( false, ABSPATH );
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if ( ! $success ) {
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$description = __( 'Your installation of WordPress prompts for FTP credentials to perform updates.' );
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$description .= ' ' . __( '(Your site is performing updates over FTP due to file ownership. Talk to your hosting company.)' );
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return array(
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'description' => $description,
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'severity' => 'fail',
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);
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}
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return array(
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'description' => __( "Your installation of WordPress doesn't require FTP credentials to perform updates." ),
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'severity' => 'pass',
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);
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}
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/**
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* Check if core files are writable by the web user/group.
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*
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* @since 5.2.0
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*
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* @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
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*
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* @return array|bool The test results. false if they're not writeable.
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*/
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function test_all_files_writable() {
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global $wp_filesystem;
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include ABSPATH . WPINC . '/version.php'; // $wp_version; // x.y.z
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$skin = new Automatic_Upgrader_Skin;
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$success = $skin->request_filesystem_credentials( false, ABSPATH );
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if ( ! $success ) {
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return false;
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}
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WP_Filesystem();
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if ( 'direct' != $wp_filesystem->method ) {
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return false;
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}
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$checksums = get_core_checksums( $wp_version, 'en_US' );
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$dev = ( false !== strpos( $wp_version, '-' ) );
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// Get the last stable version's files and test against that
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if ( ! $checksums && $dev ) {
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$checksums = get_core_checksums( (float) $wp_version - 0.1, 'en_US' );
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}
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// There aren't always checksums for development releases, so just skip the test if we still can't find any
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if ( ! $checksums && $dev ) {
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return false;
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}
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if ( ! $checksums ) {
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$description = sprintf(
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// translators: %s: WordPress version
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__( "Couldn't retrieve a list of the checksums for WordPress %s." ),
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$wp_version
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);
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$description .= ' ' . __( 'This could mean that connections are failing to WordPress.org.' );
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return array(
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'description' => $description,
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'severity' => 'warning',
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);
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}
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$unwritable_files = array();
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foreach ( array_keys( $checksums ) as $file ) {
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if ( 'wp-content' == substr( $file, 0, 10 ) ) {
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continue;
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}
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if ( ! file_exists( ABSPATH . $file ) ) {
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continue;
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}
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if ( ! is_writable( ABSPATH . $file ) ) {
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$unwritable_files[] = $file;
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}
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}
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if ( $unwritable_files ) {
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if ( count( $unwritable_files ) > 20 ) {
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$unwritable_files = array_slice( $unwritable_files, 0, 20 );
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$unwritable_files[] = '...';
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}
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return array(
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'description' => __( 'Some files are not writable by WordPress:' ) . ' <ul><li>' . implode( '</li><li>', $unwritable_files ) . '</li></ul>',
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'severity' => 'fail',
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);
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} else {
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return array(
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'description' => __( 'All of your WordPress files are writable.' ),
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'severity' => 'pass',
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);
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}
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}
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/**
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* Check if the install is using a development branch and can use nightly packages.
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*
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* @since 5.2.0
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*
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* @return array|bool The test results. false if it isn't a development version.
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*/
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function test_accepts_dev_updates() {
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include ABSPATH . WPINC . '/version.php'; // $wp_version; // x.y.z
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// Only for dev versions
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if ( false === strpos( $wp_version, '-' ) ) {
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return false;
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}
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if ( defined( 'WP_AUTO_UPDATE_CORE' ) && ( 'minor' === WP_AUTO_UPDATE_CORE || false === WP_AUTO_UPDATE_CORE ) ) {
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return array(
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'description' => sprintf(
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/* translators: %s: Name of the constant used. */
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__( 'WordPress development updates are blocked by the %s constant.' ),
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'<code>WP_AUTO_UPDATE_CORE</code>'
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),
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'severity' => 'fail',
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);
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}
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if ( ! apply_filters( 'allow_dev_auto_core_updates', $wp_version ) ) {
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return array(
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'description' => sprintf(
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/* translators: %s: Name of the filter used. */
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__( 'WordPress development updates are blocked by the %s filter.' ),
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'<code>allow_dev_auto_core_updates</code>'
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),
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'severity' => 'fail',
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);
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}
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}
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/**
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* Check if the site supports automatic minor updates.
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*
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* @since 5.2.0
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*
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* @return array The test results.
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*/
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function test_accepts_minor_updates() {
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if ( defined( 'WP_AUTO_UPDATE_CORE' ) && false === WP_AUTO_UPDATE_CORE ) {
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return array(
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'description' => sprintf(
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/* translators: %s: Name of the constant used. */
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__( 'WordPress security and maintenance releases are blocked by %s.' ),
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"<code>define( 'WP_AUTO_UPDATE_CORE', false );</code>"
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),
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'severity' => 'fail',
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);
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}
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if ( ! apply_filters( 'allow_minor_auto_core_updates', true ) ) {
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return array(
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'description' => sprintf(
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/* translators: %s: Name of the filter used. */
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__( 'WordPress security and maintenance releases are blocked by the %s filter.' ),
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'<code>allow_minor_auto_core_updates</code>'
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),
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'severity' => 'fail',
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);
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}
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}
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}
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