1<?php
2/**
3 * Theme file editor administration panel.
4 *
5 * @package WordPress
6 * @subpackage Administration
7 */
8
9/** WordPress Administration Bootstrap */
10require_once __DIR__ . '/admin.php';
11
12if ( is_multisite() && ! is_network_admin() ) {
13 wp_redirect( network_admin_url( 'theme-editor.php' ) );
14 exit;
15}
16
17if ( ! current_user_can( 'edit_themes' ) ) {
18 wp_die( '<p>' . __( 'Sorry, you are not allowed to edit templates for this site.' ) . '</p>' );
19}
20
21// Used in the HTML title tag.
22$title = __( 'Edit Themes' );
23$parent_file = 'themes.php';
24
25get_current_screen()->add_help_tab(
26 array(
27 'id' => 'overview',
28 'title' => __( 'Overview' ),
29 'content' =>
30 '<p>' . __( 'You can use the theme file editor to edit the individual CSS and PHP files which make up your theme.' ) . '</p>' .
31 '<p>' . __( 'Begin by choosing a theme to edit from the dropdown menu and clicking the Select button. A list then appears of the theme’s template files. Clicking once on any file name causes the file to appear in the large Editor box.' ) . '</p>' .
32 '<p>' . __( 'For PHP files, you can use the documentation dropdown to select from functions recognized in that file. Look Up takes you to a web page with reference material about that particular function.' ) . '</p>' .
33 '<p id="editor-keyboard-trap-help-1">' . __( 'When using a keyboard to navigate:' ) . '</p>' .
34 '<ul>' .
35 '<li id="editor-keyboard-trap-help-2">' . __( 'In the editing area, the Tab key enters a tab character.' ) . '</li>' .
36 '<li id="editor-keyboard-trap-help-3">' . __( 'To move away from this area, press the Esc key followed by the Tab key.' ) . '</li>' .
37 '<li id="editor-keyboard-trap-help-4">' . __( 'Screen reader users: when in forms mode, you may need to press the Esc key twice.' ) . '</li>' .
38 '</ul>' .
39 '<p>' . __( 'After typing in your edits, click Update File.' ) . '</p>' .
40 '<p>' . __( '<strong>Advice:</strong> Think very carefully about your site crashing if you are live-editing the theme currently in use.' ) . '</p>' .
41 '<p>' . sprintf(
42 /* translators: %s: Link to documentation on child themes. */
43 __( 'Upgrading to a newer version of the same theme will override changes made here. To avoid this, consider creating a <a href="%s">child theme</a> instead.' ),
44 __( 'https://developer.wordpress.org/themes/advanced-topics/child-themes/' )
45 ) . '</p>' .
46 ( is_network_admin() ? '<p>' . __( 'Any edits to files from this screen will be reflected on all sites in the network.' ) . '</p>' : '' ),
47 )
48);
49
50get_current_screen()->set_help_sidebar(
51 '<p><strong>' . __( 'For more information:' ) . '</strong></p>' .
52 '<p>' . __( '<a href="https://developer.wordpress.org/themes/">Documentation on Theme Development</a>' ) . '</p>' .
53 '<p>' . __( '<a href="https://wordpress.org/documentation/article/appearance-theme-file-editor-screen/">Documentation on Editing Themes</a>' ) . '</p>' .
54 '<p>' . __( '<a href="https://developer.wordpress.org/advanced-administration/wordpress/edit-files/">Documentation on Editing Files</a>' ) . '</p>' .
55 '<p>' . __( '<a href="https://developer.wordpress.org/themes/basics/template-tags/">Documentation on Template Tags</a>' ) . '</p>' .
56 '<p>' . __( '<a href="https://wordpress.org/support/forums/">Support forums</a>' ) . '</p>'
57);
58
59$action = ! empty( $_REQUEST['action'] ) ? sanitize_text_field( $_REQUEST['action'] ) : '';
60$theme = ! empty( $_REQUEST['theme'] ) ? sanitize_text_field( $_REQUEST['theme'] ) : '';
61$file = ! empty( $_REQUEST['file'] ) ? sanitize_text_field( $_REQUEST['file'] ) : '';
62$error = ! empty( $_REQUEST['error'] );
63
64if ( $theme ) {
65 $stylesheet = $theme;
66} else {
67 $stylesheet = get_stylesheet();
68}
69
70$theme = wp_get_theme( $stylesheet );
71
72if ( ! $theme->exists() ) {
73 wp_die( __( 'The requested theme does not exist.' ) );
74}
75
76if ( $theme->errors() && 'theme_no_stylesheet' === $theme->errors()->get_error_code() ) {
77 wp_die( __( 'The requested theme does not exist.' ) . ' ' . $theme->errors()->get_error_message() );
78}
79
80$allowed_files = array();
81$style_files = array();
82
83$file_types = wp_get_theme_file_editable_extensions( $theme );
84
85foreach ( $file_types as $type ) {
86 switch ( $type ) {
87 case 'php':
88 $allowed_files += $theme->get_files( 'php', -1 );
89 break;
90 case 'css':
91 $style_files = $theme->get_files( 'css', -1 );
92 $allowed_files['style.css'] = $style_files['style.css'];
93 $allowed_files += $style_files;
94 break;
95 default:
96 $allowed_files += $theme->get_files( $type, -1 );
97 break;
98 }
99}
100
101// Move functions.php and style.css to the top.
102if ( isset( $allowed_files['functions.php'] ) ) {
103 $allowed_files = array( 'functions.php' => $allowed_files['functions.php'] ) + $allowed_files;
104}
105if ( isset( $allowed_files['style.css'] ) ) {
106 $allowed_files = array( 'style.css' => $allowed_files['style.css'] ) + $allowed_files;
107}
108
109if ( empty( $file ) ) {
110 $relative_file = 'style.css';
111 $file = $allowed_files['style.css'];
112} else {
113 $relative_file = wp_unslash( $file );
114 $file = $theme->get_stylesheet_directory() . '/' . $relative_file;
115}
116
117validate_file_to_edit( $file, $allowed_files );
118
119// Handle fallback editing of file when JavaScript is not available.
120$edit_error = null;
121$posted_content = null;
122
123if ( 'POST' === $_SERVER['REQUEST_METHOD'] ) {
124 $edit_result = wp_edit_theme_plugin_file( wp_unslash( $_POST ) );
125
126 if ( is_wp_error( $edit_result ) ) {
127 $edit_error = $edit_result;
128
129 if ( check_ajax_referer( 'edit-theme_' . $stylesheet . '_' . $relative_file, 'nonce', false ) && isset( $_POST['newcontent'] ) ) {
130 $posted_content = wp_unslash( $_POST['newcontent'] );
131 }
132 } else {
133 wp_redirect(
134 add_query_arg(
135 array(
136 'a' => 1, // This means "success" for some reason.
137 'theme' => $stylesheet,
138 'file' => $relative_file,
139 ),
140 admin_url( 'theme-editor.php' )
141 )
142 );
143 exit;
144 }
145}
146
147$settings = array(
148 'codeEditor' => wp_enqueue_code_editor( compact( 'file' ) ),
149);
150wp_enqueue_script( 'wp-theme-plugin-editor' );
151wp_add_inline_script( 'wp-theme-plugin-editor', sprintf( 'jQuery( function( $ ) { wp.themePluginEditor.init( $( "#template" ), %s ); } )', wp_json_encode( $settings, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ) ) );
152wp_add_inline_script( 'wp-theme-plugin-editor', 'wp.themePluginEditor.themeOrPlugin = "theme";' );
153
154require_once ABSPATH . 'wp-admin/admin-header.php';
155
156update_recently_edited( $file );
157
158if ( ! is_file( $file ) ) {
159 $error = true;
160}
161
162$content = '';
163if ( ! empty( $posted_content ) ) {
164 $content = $posted_content;
165} elseif ( ! $error && filesize( $file ) > 0 ) {
166 $f = fopen( $file, 'r' );
167 $content = fread( $f, filesize( $file ) );
168
169 if ( str_ends_with( $file, '.php' ) ) {
170 $functions = wp_doc_link_parse( $content );
171
172 if ( ! empty( $functions ) ) {
173 $docs_select = '<select name="docs-list" id="docs-list">';
174 $docs_select .= '<option value="">' . esc_html__( 'Function Name…' ) . '</option>';
175
176 foreach ( $functions as $function ) {
177 $docs_select .= '<option value="' . esc_attr( $function ) . '">' . esc_html( $function ) . '()</option>';
178 }
179
180 $docs_select .= '</select>';
181 }
182 }
183
184 $content = esc_textarea( $content );
185}
186
187$file_show = array_search( $file, array_filter( $allowed_files ), true );
188?>
189<div class="wrap">
190<h1><?php echo esc_html( $title ); ?></h1>
191
192<?php
193if ( isset( $_GET['a'] ) ) {
194 wp_admin_notice(
195 __( 'File edited successfully.' ),
196 array(
197 'id' => 'message',
198 'dismissible' => true,
199 'additional_classes' => array( 'updated' ),
200 )
201 );
202} elseif ( is_wp_error( $edit_error ) ) {
203 $error_code = esc_html( $edit_error->get_error_message() ? $edit_error->get_error_message() : $edit_error->get_error_code() );
204 $message = '<p>' . __( 'There was an error while trying to update the file. You may need to fix something and try updating again.' ) . '</p>
205 <pre>' . $error_code . '</pre>';
206 wp_admin_notice(
207 $message,
208 array(
209 'type' => 'error',
210 'id' => 'message',
211 )
212 );
213}
214
215if ( preg_match( '/\.css$/', $file ) ) {
216 if ( ! wp_is_block_theme() && current_user_can( 'customize' ) ) {
217 $message = '<p><strong>' . __( 'Did you know?' ) . '</strong></p><p>' . sprintf(
218 /* translators: %s: Link to add custom CSS section in either the Customizer (classic themes) or Site Editor (block themes). */
219 __( 'There is no need to change your CSS here — you can edit and live preview CSS changes in the <a href="%s">built-in CSS editor</a>.' ),
220 esc_url( add_query_arg( 'autofocus[section]', 'custom_css', admin_url( 'customize.php' ) ) )
221 ) . '</p>';
222 wp_admin_notice(
223 $message,
224 array(
225 'type' => 'info',
226 'id' => 'message',
227 )
228 );
229 } elseif ( wp_is_block_theme() && current_user_can( 'edit_theme_options' ) ) {
230 $site_editor_url = admin_url(
231 add_query_arg(
232 urlencode_deep(
233 array(
234 'p' => '/styles',
235 'section' => '/css',
236 )
237 ),
238 'site-editor.php'
239 )
240 );
241
242 $message = '<p><strong>' . __( 'Did you know?' ) . '</strong></p><p>' . sprintf(
243 /* translators: %s: Link to add custom CSS section in either the Customizer (classic themes) or Site Editor (block themes). */
244 __( 'There is no need to change your CSS here — you can edit and live preview CSS changes in the <a href="%s">built-in CSS editor</a>.' ),
245 esc_url( $site_editor_url )
246 ) . '</p>';
247 wp_admin_notice(
248 $message,
249 array(
250 'type' => 'info',
251 'id' => 'message',
252 )
253 );
254 }
255 if ( file_exists( preg_replace( '/\.css$/', '.min.css', $file ) ) ) {
256 $message = '<p><strong>' . __( 'There is a minified version of this stylesheet.' ) . '</strong></p><p>' .
257 __( 'It is likely that this unminified stylesheet will not be served to visitors.' ) . '</p>';
258 wp_admin_notice(
259 $message,
260 array(
261 'type' => 'warning',
262 'id' => 'wp-css-min-warning',
263 )
264 );
265 }
266}
267?>
268
269<div class="fileedit-sub">
270<div class="alignleft">
271<h2>
272 <?php
273 if ( wp_get_theme()->get( 'Name' ) === $theme->display( 'Name' ) ) {
274 /* translators: %s: Theme name. */
275 printf( __( 'Editing %s (active)' ), '<strong>' . $theme->display( 'Name' ) . '</strong>' );
276 } else {
277 /* translators: %s: Theme name. */
278 printf( __( 'Editing %s (inactive)' ), '<strong>' . $theme->display( 'Name' ) . '</strong>' );
279 }
280 ?>
281</h2>
282<?php
283printf(
284 /* translators: %s: File path. */
285 ' <span><strong>' . __( 'File: %s' ) . '</strong></span>',
286 esc_html( $file_show )
287);
288?>
289</div>
290<div class="alignright">
291 <form action="theme-editor.php" method="get">
292 <label for="theme" id="theme-plugin-editor-selector"><?php _e( 'Select theme to edit:' ); ?> </label>
293 <select name="theme" id="theme">
294 <?php
295 foreach ( wp_get_themes( array( 'errors' => null ) ) as $a_stylesheet => $a_theme ) {
296 if ( $a_theme->errors() && 'theme_no_stylesheet' === $a_theme->errors()->get_error_code() ) {
297 continue;
298 }
299
300 $selected = ( $a_stylesheet === $stylesheet ) ? ' selected="selected"' : '';
301 echo "\n\t" . '<option value="' . esc_attr( $a_stylesheet ) . '"' . $selected . '>' . $a_theme->display( 'Name' ) . '</option>';
302 }
303 ?>
304 </select>
305 <?php submit_button( __( 'Select' ), '', 'Submit', false ); ?>
306 </form>
307</div>
308<br class="clear" />
309</div>
310
311<?php
312if ( $theme->errors() ) {
313 wp_admin_notice(
314 '<strong>' . __( 'This theme is broken.' ) . '</strong> ' . $theme->errors()->get_error_message(),
315 array(
316 'additional_classes' => array( 'error' ),
317 )
318 );
319}
320?>
321
322<div id="templateside">
323 <h2 id="theme-files-label"><?php _e( 'Theme Files' ); ?></h2>
324 <ul role="tree" aria-labelledby="theme-files-label">
325 <?php if ( $theme->parent() ) : ?>
326 <li class="howto">
327 <?php
328 printf(
329 /* translators: %s: Link to edit parent theme. */
330 __( 'This child theme inherits templates from a parent theme, %s.' ),
331 sprintf(
332 '<a href="%s">%s</a>',
333 self_admin_url( 'theme-editor.php?theme=' . urlencode( $theme->get_template() ) ),
334 $theme->parent()->display( 'Name' )
335 )
336 );
337 ?>
338 </li>
339 <?php endif; ?>
340 <li role="treeitem" tabindex="-1" aria-expanded="true" aria-level="1" aria-posinset="1" aria-setsize="1">
341 <ul role="group">
342 <?php wp_print_theme_file_tree( wp_make_theme_file_tree( $allowed_files ) ); ?>
343 </ul>
344 </li>
345 </ul>
346</div>
347
348<?php
349if ( $error ) :
350 wp_admin_notice(
351 __( 'File does not exist! Please double check the name and try again.' ),
352 array(
353 'additional_classes' => array( 'error' ),
354 )
355 );
356else :
357 ?>
358 <form name="template" id="template" action="theme-editor.php" method="post">
359 <?php wp_nonce_field( 'edit-theme_' . $stylesheet . '_' . $relative_file, 'nonce' ); ?>
360 <div>
361 <label for="newcontent" id="theme-plugin-editor-label"><?php _e( 'Selected file content:' ); ?></label>
362 <textarea cols="70" rows="30" name="newcontent" id="newcontent" aria-describedby="editor-keyboard-trap-help-1 editor-keyboard-trap-help-2 editor-keyboard-trap-help-3 editor-keyboard-trap-help-4"><?php echo $content; ?></textarea>
363 <input type="hidden" name="action" value="update" />
364 <input type="hidden" name="file" value="<?php echo esc_attr( $relative_file ); ?>" />
365 <input type="hidden" name="theme" value="<?php echo esc_attr( $theme->get_stylesheet() ); ?>" />
366 </div>
367
368 <?php if ( ! empty( $functions ) ) : ?>
369 <div id="documentation" class="hide-if-no-js">
370 <label for="docs-list"><?php _e( 'Documentation:' ); ?></label>
371 <?php echo $docs_select; ?>
372 <input disabled id="docs-lookup" type="button" class="button" value="<?php esc_attr_e( 'Look Up' ); ?>" onclick="if ( '' !== jQuery('#docs-list').val() ) { window.open( 'https://api.wordpress.org/core/handbook/1.0/?function=' + escape( jQuery( '#docs-list' ).val() ) + '&locale=<?php echo urlencode( get_user_locale() ); ?>&version=<?php echo urlencode( get_bloginfo( 'version' ) ); ?>&redirect=true'); }" />
373 </div>
374 <?php endif; ?>
375
376 <div>
377 <div class="editor-notices">
378 <?php
379 if ( is_child_theme() && $theme->get_stylesheet() === get_template() ) :
380 $message = ( is_writable( $file ) ) ? '<strong>' . __( 'Caution:' ) . '</strong> ' : '';
381 $message .= __( 'This is a file in your current parent theme.' );
382 wp_admin_notice(
383 $message,
384 array(
385 'type' => 'warning',
386 'additional_classes' => array( 'inline' ),
387 )
388 );
389 endif;
390 ?>
391 </div>
392 <?php
393 if ( is_writable( $file ) ) {
394 ?>
395 <p class="submit">
396 <?php submit_button( __( 'Update File' ), 'primary', 'submit', false ); ?>
397 <span class="spinner"></span>
398 </p>
399 <?php
400 } else {
401 ?>
402 <p>
403 <?php
404 printf(
405 /* translators: %s: Documentation URL. */
406 __( 'You need to make this file writable before you can save your changes. See <a href="%s">Changing File Permissions</a> for more information.' ),
407 __( 'https://developer.wordpress.org/advanced-administration/server/file-permissions/' )
408 );
409 ?>
410 </p>
411 <?php
412 }
413 ?>
414 </div>
415
416 <?php wp_print_file_editor_templates(); ?>
417 </form>
418 <?php
419endif; // End if $error.
420?>
421<br class="clear" />
422</div>
423<?php
424$dismissed_pointers = explode( ',', (string) get_user_meta( get_current_user_id(), 'dismissed_wp_pointers', true ) );
425if ( ! in_array( 'theme_editor_notice', $dismissed_pointers, true ) ) {
426 // Get a back URL.
427 $referer = wp_get_referer();
428
429 $excluded_referer_basenames = array( 'theme-editor.php', 'wp-login.php' );
430
431 $return_url = admin_url( '/' );
432 if ( $referer ) {
433 $referer_path = parse_url( $referer, PHP_URL_PATH );
434 if ( is_string( $referer_path ) && ! in_array( basename( $referer_path ), $excluded_referer_basenames, true ) ) {
435 $return_url = $referer;
436 }
437 }
438 ?>
439 <div id="file-editor-warning" class="notification-dialog-wrap file-editor-warning hide-if-no-js hidden">
440 <div class="notification-dialog-background"></div>
441 <div class="notification-dialog">
442 <div class="file-editor-warning-content">
443 <div class="file-editor-warning-message">
444 <h1><?php _e( 'Heads up!' ); ?></h1>
445 <p>
446 <?php
447 _e( 'You appear to be making direct edits to your theme in the WordPress dashboard. It is not recommended! Editing your theme directly could break your site and your changes may be lost in future updates.' );
448 ?>
449 </p>
450 <?php
451 if ( ! $theme->parent() ) {
452 echo '<p>';
453 printf(
454 /* translators: %s: Link to documentation on child themes. */
455 __( 'If you need to tweak more than your theme’s CSS, you might want to try <a href="%s">making a child theme</a>.' ),
456 esc_url( __( 'https://developer.wordpress.org/themes/advanced-topics/child-themes/' ) )
457 );
458 echo '</p>';
459 }
460 ?>
461 <p><?php _e( 'If you decide to go ahead with direct edits anyway, use a file manager to create a copy with a new name and hang on to the original. That way, you can re-enable a functional version if something goes wrong.' ); ?></p>
462 </div>
463 <p>
464 <a class="button file-editor-warning-go-back" href="<?php echo esc_url( $return_url ); ?>"><?php _e( 'Go back' ); ?></a>
465 <button type="button" class="file-editor-warning-dismiss button button-primary"><?php _e( 'I understand' ); ?></button>
466 </p>
467 </div>
468 </div>
469 </div>
470 <?php
471} // Editor warning notice.
472
473require_once ABSPATH . 'wp-admin/admin-footer.php';
474