WordPress/wp-admin/plugin-editor.php

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<?php
/**
* Edit plugin editor administration panel.
*
* @package WordPress
* @subpackage Administration
*/
/** WordPress Administration Bootstrap */
require_once('./admin.php');
if ( is_multisite() && ! is_network_admin() ) {
wp_redirect( network_admin_url( 'plugin-editor.php' ) );
exit();
}
if ( !current_user_can('edit_plugins') )
wp_die( __('You do not have sufficient permissions to edit plugins for this site.') );
$title = __("Edit Plugins");
$parent_file = 'plugins.php';
wp_reset_vars( array( 'action', 'error', 'file', 'plugin' ) );
$plugins = get_plugins();
if ( empty($plugins) )
wp_die( __('There are no plugins installed on this site.') );
if ( isset($_REQUEST['file']) )
Change all core API to expect unslashed rather than slashed arguments. The exceptions to this are update_post_meta() and add_post_meta() which are often used by plugins in POST handlers and will continue accepting slashed data for now. Introduce wp_upate_post_meta() and wp_add_post_meta() as unslashed alternatives to update_post_meta() and add_post_meta(). These functions could become methods in WP_Post so don't use them too heavily yet. Remove all escape() calls from wp_xmlrpc_server. Now that core expects unslashed data this is no longer needed. Remove addslashes(), addslashes_gpc(), add_magic_quotes() calls on data being prepared for handoff to core functions that until now expected slashed data. Adding slashes in no longer necessary. Introduce wp_unslash() and use to it remove slashes from GPCS data before using it in core API. Almost every instance of stripslashes() in core should now be wp_unslash(). In the future (a release or three) when GPCS is no longer slashed, wp_unslash() will stop stripping slashes and simply return what is passed. At this point wp_unslash() calls can be removed from core. Introduce wp_slash() for slashing GPCS data. This will also turn into a noop once GPCS is no longer slashed. wp_slash() should almost never be used. It is mainly of use in unit tests. Plugins should use wp_unslash() on data being passed to core API. Plugins should no longer slash data being passed to core. So when you get_post() and then wp_insert_post() the post data from get_post() no longer needs addslashes(). Most plugins were not bothering with this. They will magically start doing the right thing. Unfortunately, those few souls who did it properly will now have to avoid calling addslashes() for 3.6 and newer. Use wp_kses_post() and wp_kses_data(), which expect unslashed data, instead of wp_filter_post_kses() and wp_filter_kses(), which expect slashed data. Filters are no longer passed slashed data. Remove many no longer necessary calls to $wpdb->escape() and esc_sql(). In wp_get_referer() and wp_get_original_referer(), return unslashed data. Remove old stripslashes() calls from WP_Widget::update() handlers. These haven't been necessary since WP_Widget. Switch several queries over to prepare(). Expect something to break. Props alexkingorg see #21767 git-svn-id: http://core.svn.wordpress.org/trunk@23416 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2013-02-14 17:51:06 -05:00
$plugin = wp_unslash($_REQUEST['file']);
if ( empty($plugin) ) {
$plugin = array_keys($plugins);
$plugin = $plugin[0];
}
$plugin_files = get_plugin_files($plugin);
if ( empty($file) )
$file = $plugin_files[0];
$file = validate_file_to_edit($file, $plugin_files);
$real_file = WP_PLUGIN_DIR . '/' . $file;
$scrollto = isset($_REQUEST['scrollto']) ? (int) $_REQUEST['scrollto'] : 0;
switch ( $action ) {
case 'update':
check_admin_referer('edit-plugin_' . $file);
Change all core API to expect unslashed rather than slashed arguments. The exceptions to this are update_post_meta() and add_post_meta() which are often used by plugins in POST handlers and will continue accepting slashed data for now. Introduce wp_upate_post_meta() and wp_add_post_meta() as unslashed alternatives to update_post_meta() and add_post_meta(). These functions could become methods in WP_Post so don't use them too heavily yet. Remove all escape() calls from wp_xmlrpc_server. Now that core expects unslashed data this is no longer needed. Remove addslashes(), addslashes_gpc(), add_magic_quotes() calls on data being prepared for handoff to core functions that until now expected slashed data. Adding slashes in no longer necessary. Introduce wp_unslash() and use to it remove slashes from GPCS data before using it in core API. Almost every instance of stripslashes() in core should now be wp_unslash(). In the future (a release or three) when GPCS is no longer slashed, wp_unslash() will stop stripping slashes and simply return what is passed. At this point wp_unslash() calls can be removed from core. Introduce wp_slash() for slashing GPCS data. This will also turn into a noop once GPCS is no longer slashed. wp_slash() should almost never be used. It is mainly of use in unit tests. Plugins should use wp_unslash() on data being passed to core API. Plugins should no longer slash data being passed to core. So when you get_post() and then wp_insert_post() the post data from get_post() no longer needs addslashes(). Most plugins were not bothering with this. They will magically start doing the right thing. Unfortunately, those few souls who did it properly will now have to avoid calling addslashes() for 3.6 and newer. Use wp_kses_post() and wp_kses_data(), which expect unslashed data, instead of wp_filter_post_kses() and wp_filter_kses(), which expect slashed data. Filters are no longer passed slashed data. Remove many no longer necessary calls to $wpdb->escape() and esc_sql(). In wp_get_referer() and wp_get_original_referer(), return unslashed data. Remove old stripslashes() calls from WP_Widget::update() handlers. These haven't been necessary since WP_Widget. Switch several queries over to prepare(). Expect something to break. Props alexkingorg see #21767 git-svn-id: http://core.svn.wordpress.org/trunk@23416 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2013-02-14 17:51:06 -05:00
$newcontent = wp_unslash( $_POST['newcontent'] );
if ( is_writeable($real_file) ) {
$f = fopen($real_file, 'w+');
fwrite($f, $newcontent);
fclose($f);
$network_wide = is_plugin_active_for_network( $file );
// Deactivate so we can test it.
if ( is_plugin_active($file) || isset($_POST['phperror']) ) {
if ( is_plugin_active($file) )
deactivate_plugins($file, true);
if ( ! is_network_admin() )
update_option( 'recently_activated', array( $file => time() ) + (array) get_option( 'recently_activated' ) );
wp_redirect(add_query_arg('_wpnonce', wp_create_nonce('edit-plugin-test_' . $file), "plugin-editor.php?file=$file&liveupdate=1&scrollto=$scrollto&networkwide=" . $network_wide));
exit;
}
wp_redirect( self_admin_url("plugin-editor.php?file=$file&a=te&scrollto=$scrollto") );
} else {
wp_redirect( self_admin_url("plugin-editor.php?file=$file&scrollto=$scrollto") );
}
exit;
break;
default:
if ( isset($_GET['liveupdate']) ) {
check_admin_referer('edit-plugin-test_' . $file);
$error = validate_plugin($file);
if ( is_wp_error($error) )
wp_die( $error );
if ( ( ! empty( $_GET['networkwide'] ) && ! is_plugin_active_for_network($file) ) || ! is_plugin_active($file) )
activate_plugin($file, "plugin-editor.php?file=$file&phperror=1", ! empty( $_GET['networkwide'] ) ); // we'll override this later if the plugin can be included without fatal error
wp_redirect( self_admin_url("plugin-editor.php?file=$file&a=te&scrollto=$scrollto") );
exit;
}
// List of allowable extensions
$editable_extensions = array('php', 'txt', 'text', 'js', 'css', 'html', 'htm', 'xml', 'inc', 'include');
$editable_extensions = (array) apply_filters('editable_extensions', $editable_extensions);
if ( ! is_file($real_file) ) {
wp_die(sprintf('<p>%s</p>', __('No such file exists! Double check the name and try again.')));
} else {
// Get the extension of the file
if ( preg_match('/\.([^.]+)$/', $real_file, $matches) ) {
$ext = strtolower($matches[1]);
// If extension is not in the acceptable list, skip it
if ( !in_array( $ext, $editable_extensions) )
wp_die(sprintf('<p>%s</p>', __('Files of this type are not editable.')));
}
}
get_current_screen()->add_help_tab( array(
'id' => 'overview',
'title' => __('Overview'),
'content' =>
'<p>' . __('You can use the editor to make changes to any of your plugins&#8217; individual PHP files. Be aware that if you make changes, plugins updates will overwrite your customizations.') . '</p>' .
'<p>' . __('Choose a plugin to edit from the menu in the upper right and click the Select button. Click once on any file name to load it in the editor, and make your changes. Don&#8217;t forget to save your changes (Update File) when you&#8217;re finished.') . '</p>' .
'<p>' . __('The Documentation menu below the editor lists the PHP functions recognized in the plugin file. Clicking Look Up takes you to a web page about that particular function.') . '</p>' .
'<p id="newcontent-description">' . __('In the editing area the Tab key enters a tab character. To move below this area by pressing Tab, press the Esc key followed by the Tab key.') . '</p>' .
'<p>' . __('If you want to make changes but don&#8217;t want them to be overwritten when the plugin is updated, you may be ready to think about writing your own plugin. For information on how to edit plugins, write your own from scratch, or just better understand their anatomy, check out the links below.') . '</p>' .
( is_network_admin() ? '<p>' . __('Any edits to files from this screen will be reflected on all sites in the network.') . '</p>' : '' )
) );
get_current_screen()->set_help_sidebar(
'<p><strong>' . __('For more information:') . '</strong></p>' .
'<p>' . __('<a href="http://codex.wordpress.org/Plugins_Editor_Screen" target="_blank">Documentation on Editing Plugins</a>') . '</p>' .
'<p>' . __('<a href="http://codex.wordpress.org/Writing_a_Plugin" target="_blank">Documentation on Writing Plugins</a>') . '</p>' .
'<p>' . __('<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>') . '</p>'
);
require_once(ABSPATH . 'wp-admin/admin-header.php');
update_recently_edited(WP_PLUGIN_DIR . '/' . $file);
$content = file_get_contents( $real_file );
if ( '.php' == substr( $real_file, strrpos( $real_file, '.' ) ) ) {
$functions = wp_doc_link_parse( $content );
if ( !empty($functions) ) {
$docs_select = '<select name="docs-list" id="docs-list">';
$docs_select .= '<option value="">' . __( 'Function Name&hellip;' ) . '</option>';
foreach ( $functions as $function) {
$docs_select .= '<option value="' . esc_attr( $function ) . '">' . esc_html( $function ) . '()</option>';
}
$docs_select .= '</select>';
}
}
$content = esc_textarea( $content );
?>
<?php if (isset($_GET['a'])) : ?>
<div id="message" class="updated"><p><?php _e('File edited successfully.') ?></p></div>
<?php elseif (isset($_GET['phperror'])) : ?>
<div id="message" class="updated"><p><?php _e('This plugin has been deactivated because your changes resulted in a <strong>fatal error</strong>.') ?></p>
<?php
if ( wp_verify_nonce($_GET['_error_nonce'], 'plugin-activation-error_' . $file) ) { ?>
<iframe style="border:0" width="100%" height="70px" src="<?php bloginfo('wpurl'); ?>/wp-admin/plugins.php?action=error_scrape&amp;plugin=<?php echo esc_attr($file); ?>&amp;_wpnonce=<?php echo esc_attr($_GET['_error_nonce']); ?>"></iframe>
<?php } ?>
</div>
<?php endif; ?>
<div class="wrap">
<?php screen_icon(); ?>
<h2><?php echo esc_html( $title ); ?></h2>
<div class="fileedit-sub">
<div class="alignleft">
<big><?php
if ( is_plugin_active($plugin) ) {
if ( is_writeable($real_file) )
echo sprintf(__('Editing <strong>%s</strong> (active)'), $file);
else
echo sprintf(__('Browsing <strong>%s</strong> (active)'), $file);
} else {
if ( is_writeable($real_file) )
echo sprintf(__('Editing <strong>%s</strong> (inactive)'), $file);
else
echo sprintf(__('Browsing <strong>%s</strong> (inactive)'), $file);
}
?></big>
</div>
<div class="alignright">
<form action="plugin-editor.php" method="post">
<strong><label for="plugin"><?php _e('Select plugin to edit:'); ?> </label></strong>
<select name="plugin" id="plugin">
<?php
foreach ( $plugins as $plugin_key => $a_plugin ) {
$plugin_name = $a_plugin['Name'];
if ( $plugin_key == $plugin )
$selected = " selected='selected'";
else
$selected = '';
$plugin_name = esc_attr($plugin_name);
$plugin_key = esc_attr($plugin_key);
echo "\n\t<option value=\"$plugin_key\" $selected>$plugin_name</option>";
}
?>
</select>
<?php submit_button( __( 'Select' ), 'button', 'Submit', false ); ?>
</form>
</div>
<br class="clear" />
</div>
<div id="templateside">
<h3><?php _e('Plugin Files'); ?></h3>
<ul>
<?php
foreach ( $plugin_files as $plugin_file ) :
// Get the extension of the file
if ( preg_match('/\.([^.]+)$/', $plugin_file, $matches) ) {
$ext = strtolower($matches[1]);
// If extension is not in the acceptable list, skip it
if ( !in_array( $ext, $editable_extensions ) )
continue;
} else {
// No extension found
continue;
}
?>
<li<?php echo $file == $plugin_file ? ' class="highlight"' : ''; ?>><a href="plugin-editor.php?file=<?php echo urlencode( $plugin_file ) ?>&amp;plugin=<?php echo urlencode( $plugin ) ?>"><?php echo $plugin_file ?></a></li>
<?php endforeach; ?>
</ul>
</div>
<form name="template" id="template" action="plugin-editor.php" method="post">
<?php wp_nonce_field('edit-plugin_' . $file) ?>
<div><textarea cols="70" rows="25" name="newcontent" id="newcontent" aria-describedby="newcontent-description"><?php echo $content; ?></textarea>
<input type="hidden" name="action" value="update" />
<input type="hidden" name="file" value="<?php echo esc_attr($file) ?>" />
<input type="hidden" name="plugin" value="<?php echo esc_attr($plugin) ?>" />
<input type="hidden" name="scrollto" id="scrollto" value="<?php echo $scrollto; ?>" />
</div>
<?php if ( !empty( $docs_select ) ) : ?>
<div id="documentation" class="hide-if-no-js"><label for="docs-list"><?php _e('Documentation:') ?></label> <?php echo $docs_select ?> <input type="button" class="button" value="<?php esc_attr_e( 'Look Up' ) ?> " onclick="if ( '' != jQuery('#docs-list').val() ) { window.open( 'http://api.wordpress.org/core/handbook/1.0/?function=' + escape( jQuery( '#docs-list' ).val() ) + '&amp;locale=<?php echo urlencode( get_locale() ) ?>&amp;version=<?php echo urlencode( $wp_version ) ?>&amp;redirect=true'); }" /></div>
<?php endif; ?>
<?php if ( is_writeable($real_file) ) : ?>
<?php if ( in_array( $file, (array) get_option( 'active_plugins', array() ) ) ) { ?>
<p><?php _e('<strong>Warning:</strong> Making changes to active plugins is not recommended. If your changes cause a fatal error, the plugin will be automatically deactivated.'); ?></p>
<?php } ?>
<p class="submit">
<?php
if ( isset($_GET['phperror']) ) {
echo "<input type='hidden' name='phperror' value='1' />";
submit_button( __( 'Update File and Attempt to Reactivate' ), 'primary', 'submit', false );
} else {
submit_button( __( 'Update File' ), 'primary', 'submit', false );
}
?>
</p>
<?php else : ?>
<p><em><?php _e('You need to make this file writable before you can save your changes. See <a href="http://codex.wordpress.org/Changing_File_Permissions">the Codex</a> for more information.'); ?></em></p>
<?php endif; ?>
</form>
<br class="clear" />
</div>
<script type="text/javascript">
jQuery(document).ready(function($){
$('#template').submit(function(){ $('#scrollto').val( $('#newcontent').scrollTop() ); });
$('#newcontent').scrollTop( $('#scrollto').val() );
});
</script>
<?php
break;
}
include(ABSPATH . "wp-admin/admin-footer.php");