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< ? php
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// The admin side of our 1.1 update system
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function core_update_footer ( $msg = '' ) {
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if ( ! current_user_can ( 'manage_options' ) )
return sprintf ( '| ' . __ ( 'Version %s' ), $GLOBALS [ 'wp_version' ] );
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$cur = get_option ( 'update_core' );
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if ( ! isset ( $cur -> current ) )
$cur -> current = '' ;
if ( ! isset ( $cur -> url ) )
$cur -> url = '' ;
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switch ( $cur -> response ) {
case 'development' :
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return sprintf ( '| ' . __ ( 'You are using a development version (%1$s). Cool! Please <a href="%2$s">stay updated</a>.' ), $GLOBALS [ 'wp_version' ], 'update.php?action=upgrade-core' );
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break ;
case 'upgrade' :
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if ( current_user_can ( 'manage_options' ) ) {
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return sprintf ( '| <strong>' . __ ( '<a href="%1$s">Get Version %2$s</a>' ) . '</strong>' , wp_nonce_url ( 'update.php?action=upgrade-core' , 'upgrade-core' ), $cur -> current );
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break ;
}
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case 'latest' :
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default :
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return sprintf ( '| ' . __ ( 'Version %s' ), $GLOBALS [ 'wp_version' ] );
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break ;
}
}
add_filter ( 'update_footer' , 'core_update_footer' );
function update_nag () {
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$cur = get_option ( 'update_core' );
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if ( ! isset ( $cur -> response ) || $cur -> response != 'upgrade' )
return false ;
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if ( current_user_can ( 'manage_options' ) )
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$msg = sprintf ( __ ( 'WordPress %1$s is available! <a href="%2$s">Please update now</a>.' ), $cur -> current , 'update.php?action=upgrade-core' );
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else
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$msg = sprintf ( __ ( 'WordPress %1$s is available! Please notify the site administrator.' ), $cur -> current );
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echo " <div id='update-nag'> $msg </div> " ;
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}
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//add_action( 'admin_notices', 'update_nag', 3 ); // crazyhorse
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// Called directly from dashboard
function update_right_now_message () {
$cur = get_option ( 'update_core' );
$msg = sprintf ( __ ( 'This is WordPress version %s.' ), $GLOBALS [ 'wp_version' ] );
if ( isset ( $cur -> response ) && $cur -> response == 'upgrade' && current_user_can ( 'manage_options' ) )
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$msg .= " <a href='update.php?action=upgrade-core' class='rbutton'> " . sprintf ( __ ( 'Update to %s' ), $cur -> current ? $cur -> current : __ ( 'Latest' ) ) . '</a>' ;
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echo " <span id='wp-version-message'> $msg </span> " ;
}
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function wp_plugin_update_row ( $file , $plugin_data ) {
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$current = get_option ( 'update_plugins' );
if ( ! isset ( $current -> response [ $file ] ) )
return false ;
$r = $current -> response [ $file ];
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$details_url = admin_url ( 'plugin-install.php?tab=plugin-information&plugin=' . $r -> slug . '&TB_iframe=true&width=600&height=800' );
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echo '<tr><td colspan="5" class="plugin-update">' ;
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if ( ! current_user_can ( 'update_plugins' ) )
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printf ( __ ( 'There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%1$s">View version %3$s Details</a>.' ), $plugin_data [ 'Name' ], $details_url , $r -> new_version );
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else if ( empty ( $r -> package ) )
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printf ( __ ( 'There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%1$s">View version %3$s Details</a> <em>automatic upgrade unavailable for this plugin</em>.' ), $plugin_data [ 'Name' ], $details_url , $r -> new_version );
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else
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printf ( __ ( 'There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%1$s">View version %3$s Details</a> or <a href="%4$s">upgrade automatically</a>.' ), $plugin_data [ 'Name' ], $details_url , $r -> new_version , wp_nonce_url ( 'update.php?action=upgrade-plugin&plugin=' . $file , 'upgrade-plugin_' . $file ) );
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echo '</td></tr>' ;
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}
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add_action ( 'after_plugin_row' , 'wp_plugin_update_row' , 10 , 2 );
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function wp_update_plugin ( $plugin , $feedback = '' ) {
global $wp_filesystem ;
if ( ! empty ( $feedback ) )
add_filter ( 'update_feedback' , $feedback );
// Is an update available?
$current = get_option ( 'update_plugins' );
if ( ! isset ( $current -> response [ $plugin ] ) )
return new WP_Error ( 'up_to_date' , __ ( 'The plugin is at the latest version.' ));
// Is a filesystem accessor setup?
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if ( ! $wp_filesystem || ! is_object ( $wp_filesystem ) )
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WP_Filesystem ();
if ( ! is_object ( $wp_filesystem ) )
return new WP_Error ( 'fs_unavailable' , __ ( 'Could not access filesystem.' ));
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if ( $wp_filesystem -> errors -> get_error_code () )
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return new WP_Error ( 'fs_error' , __ ( 'Filesystem error' ), $wp_filesystem -> errors );
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//Get the base plugin folder
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$plugins_dir = $wp_filesystem -> wp_plugins_dir ();
if ( empty ( $plugins_dir ) )
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return new WP_Error ( 'fs_no_plugins_dir' , __ ( 'Unable to locate WordPress Plugin directory.' ));
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//And the same for the Content directory.
$content_dir = $wp_filesystem -> wp_content_dir ();
if ( empty ( $content_dir ) )
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return new WP_Error ( 'fs_no_content_dir' , __ ( 'Unable to locate WordPress Content directory (wp-content).' ));
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$plugins_dir = trailingslashit ( $plugins_dir );
$content_dir = trailingslashit ( $content_dir );
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// Get the URL to the zip file
$r = $current -> response [ $plugin ];
if ( empty ( $r -> package ) )
return new WP_Error ( 'no_package' , __ ( 'Upgrade package not available.' ));
// Download the package
$package = $r -> package ;
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apply_filters ( 'update_feedback' , sprintf ( __ ( 'Downloading update from %s' ), $package ));
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$download_file = download_url ( $package );
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if ( is_wp_error ( $download_file ) )
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return new WP_Error ( 'download_failed' , __ ( 'Download failed.' ), $download_file -> get_error_message ());
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$working_dir = $content_dir . 'upgrade/' . basename ( $plugin , '.php' );
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// Clean up working directory
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if ( $wp_filesystem -> is_dir ( $working_dir ) )
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$wp_filesystem -> delete ( $working_dir , true );
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apply_filters ( 'update_feedback' , __ ( 'Unpacking the update' ));
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// Unzip package to working directory
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$result = unzip_file ( $download_file , $working_dir );
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// Once extracted, delete the package
unlink ( $download_file );
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if ( is_wp_error ( $result ) ) {
$wp_filesystem -> delete ( $working_dir , true );
return $result ;
}
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if ( is_plugin_active ( $plugin ) ) {
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//Deactivate the plugin silently, Prevent deactivation hooks from running.
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apply_filters ( 'update_feedback' , __ ( 'Deactivating the plugin' ));
deactivate_plugins ( $plugin , true );
}
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// Remove the existing plugin.
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apply_filters ( 'update_feedback' , __ ( 'Removing the old version of the plugin' ));
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$this_plugin_dir = trailingslashit ( dirname ( $plugins_dir . $plugin ) );
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// If plugin is in its own directory, recursively delete the directory.
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if ( strpos ( $plugin , '/' ) && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory seperator AND that its not the root plugin folder
$deleted = $wp_filesystem -> delete ( $this_plugin_dir , true );
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else
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$deleted = $wp_filesystem -> delete ( $plugins_dir . $plugin );
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if ( ! $deleted ) {
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$wp_filesystem -> delete ( $working_dir , true );
return new WP_Error ( 'delete_failed' , __ ( 'Could not remove the old plugin' ));
}
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apply_filters ( 'update_feedback' , __ ( 'Installing the latest version' ));
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// Copy new version of plugin into place.
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$result = copy_dir ( $working_dir , $plugins_dir );
if ( is_wp_error ( $result ) ) {
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//$wp_filesystem->delete($working_dir, true); //TODO: Uncomment? This DOES mean that the new files are available in the upgrade folder if it fails.
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return $result ;
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}
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//Get a list of the directories in the working directory before we delete it, We need to know the new folder for the plugin
$filelist = array_keys ( $wp_filesystem -> dirlist ( $working_dir ) );
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// Remove working directory
$wp_filesystem -> delete ( $working_dir , true );
// Force refresh of plugin update information
delete_option ( 'update_plugins' );
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if ( empty ( $filelist ) )
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return false ; //We couldnt find any files in the working dir, therefor no plugin installed? Failsafe backup.
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$folder = $filelist [ 0 ];
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$plugin = get_plugins ( '/' . $folder ); //Ensure to pass with leading slash
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$pluginfiles = array_keys ( $plugin ); //Assume the requested plugin is the first in the list
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return $folder . '/' . $pluginfiles [ 0 ];
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}
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function wp_update_core ( $feedback = '' ) {
global $wp_filesystem ;
if ( ! empty ( $feedback ) )
add_filter ( 'update_feedback' , $feedback );
// Is an update available?
$current = get_option ( 'update_core' );
if ( ! isset ( $current -> response ) || $current -> response == 'latest' )
return new WP_Error ( 'up_to_date' , __ ( 'WordPress is at the latest version.' ));
// Is a filesystem accessor setup?
if ( ! $wp_filesystem || ! is_object ( $wp_filesystem ) )
WP_Filesystem ();
if ( ! is_object ( $wp_filesystem ) )
return new WP_Error ( 'fs_unavailable' , __ ( 'Could not access filesystem.' ));
if ( $wp_filesystem -> errors -> get_error_code () )
return new WP_Error ( 'fs_error' , __ ( 'Filesystem error' ), $wp_filesystem -> errors );
// Get the base WP folder
$wp_dir = $wp_filesystem -> abspath ();
if ( empty ( $wp_dir ) )
return new WP_Error ( 'fs_no_wp_dir' , __ ( 'Unable to locate WordPress directory.' ));
// And the same for the Content directory.
$content_dir = $wp_filesystem -> wp_content_dir ();
if ( empty ( $content_dir ) )
return new WP_Error ( 'fs_no_content_dir' , __ ( 'Unable to locate WordPress Content directory (wp-content).' ));
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$wp_dir = trailingslashit ( $wp_dir );
$content_dir = trailingslashit ( $content_dir );
// Get the URL to the zip file
$package = $current -> package ;
// Download the package
apply_filters ( 'update_feedback' , sprintf ( __ ( 'Downloading update from %s' ), $package ));
$download_file = download_url ( $package );
if ( is_wp_error ( $download_file ) )
return new WP_Error ( 'download_failed' , __ ( 'Download failed.' ), $download_file -> get_error_message ());
$working_dir = $content_dir . 'upgrade/core' ;
// Clean up working directory
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if ( $wp_filesystem -> is_dir ( $working_dir ) ) {
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$wp_filesystem -> delete ( $working_dir , true );
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}
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apply_filters ( 'update_feedback' , __ ( 'Unpacking the core update' ));
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// Unzip package to working directory
$result = unzip_file ( $download_file , $working_dir );
// Once extracted, delete the package
unlink ( $download_file );
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if ( is_wp_error ( $result ) ) {
$wp_filesystem -> delete ( $working_dir , true );
return $result ;
}
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// Copy update-core.php from the new version into place.
if ( ! $wp_filesystem -> copy ( $working_dir . '/wordpress/wp-admin/includes/update-core.php' , $wp_dir . 'wp-admin/includes/update-core.php' , true ) ) {
$wp_filesystem -> delete ( $working_dir , true );
return new WP_Error ( 'copy_failed' , __ ( 'Could not copy files' ));
}
require ( ABSPATH . 'wp-admin/includes/update-core.php' );
return update_core ( $working_dir , $wp_dir );
}
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?>