source: trunk/www.guidonia.net/wp/wp-admin/includes/update-core.php@ 44

Last change on this file since 44 was 44, checked in by luciano, 15 years ago
File size: 9.0 KB
Line 
1<?php
2/**
3 * WordPress core upgrade functionality.
4 *
5 * @package WordPress
6 * @subpackage Administration
7 * @since 2.7.0
8 */
9
10/**
11 * Stores files to be deleted.
12 *
13 * @since 2.7.0
14 * @global array $_old_files
15 * @var array
16 * @name $_old_files
17 */
18global $_old_files;
19
20$_old_files = array(
21'wp-admin/bookmarklet.php',
22'wp-admin/css/upload.css',
23'wp-admin/css/upload-rtl.css',
24'wp-admin/css/press-this-ie.css',
25'wp-admin/css/press-this-ie-rtl.css',
26'wp-admin/edit-form.php',
27'wp-admin/link-import.php',
28'wp-admin/images/box-bg-left.gif',
29'wp-admin/images/box-bg-right.gif',
30'wp-admin/images/box-bg.gif',
31'wp-admin/images/box-butt-left.gif',
32'wp-admin/images/box-butt-right.gif',
33'wp-admin/images/box-butt.gif',
34'wp-admin/images/box-head-left.gif',
35'wp-admin/images/box-head-right.gif',
36'wp-admin/images/box-head.gif',
37'wp-admin/images/heading-bg.gif',
38'wp-admin/images/login-bkg-bottom.gif',
39'wp-admin/images/login-bkg-tile.gif',
40'wp-admin/images/notice.gif',
41'wp-admin/images/toggle.gif',
42'wp-admin/images/comment-stalk-classic.gif',
43'wp-admin/images/comment-stalk-fresh.gif',
44'wp-admin/images/comment-stalk-rtl.gif',
45'wp-admin/images/comment-pill.gif',
46'wp-admin/images/del.png',
47'wp-admin/images/media-button-gallery.gif',
48'wp-admin/images/media-buttons.gif',
49'wp-admin/images/tail.gif',
50'wp-admin/images/gear.png',
51'wp-admin/images/tab.png',
52'wp-admin/images/postbox-bg.gif',
53'wp-admin/includes/upload.php',
54'wp-admin/js/dbx-admin-key.js',
55'wp-admin/js/link-cat.js',
56'wp-admin/js/forms.js',
57'wp-admin/js/upload.js',
58'wp-admin/profile-update.php',
59'wp-admin/templates.php',
60'wp-includes/images/audio.png',
61'wp-includes/images/css.png',
62'wp-includes/images/default.png',
63'wp-includes/images/doc.png',
64'wp-includes/images/exe.png',
65'wp-includes/images/html.png',
66'wp-includes/images/js.png',
67'wp-includes/images/pdf.png',
68'wp-includes/images/swf.png',
69'wp-includes/images/tar.png',
70'wp-includes/images/text.png',
71'wp-includes/images/video.png',
72'wp-includes/images/zip.png',
73'wp-includes/js/dbx.js',
74'wp-includes/js/fat.js',
75'wp-includes/js/list-manipulation.js',
76'wp-includes/js/jquery/jquery.dimensions.min.js',
77'wp-includes/js/tinymce/langs/en.js',
78'wp-includes/js/tinymce/plugins/autosave/editor_plugin_src.js',
79'wp-includes/js/tinymce/plugins/autosave/langs',
80'wp-includes/js/tinymce/plugins/directionality/images',
81'wp-includes/js/tinymce/plugins/directionality/langs',
82'wp-includes/js/tinymce/plugins/inlinepopups/css',
83'wp-includes/js/tinymce/plugins/inlinepopups/images',
84'wp-includes/js/tinymce/plugins/inlinepopups/jscripts',
85'wp-includes/js/tinymce/plugins/paste/images',
86'wp-includes/js/tinymce/plugins/paste/jscripts',
87'wp-includes/js/tinymce/plugins/paste/langs',
88'wp-includes/js/tinymce/plugins/spellchecker/classes/HttpClient.class.php',
89'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyGoogleSpell.class.php',
90'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyPspell.class.php',
91'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyPspellShell.class.php',
92'wp-includes/js/tinymce/plugins/spellchecker/css/spellchecker.css',
93'wp-includes/js/tinymce/plugins/spellchecker/images',
94'wp-includes/js/tinymce/plugins/spellchecker/langs',
95'wp-includes/js/tinymce/plugins/spellchecker/tinyspell.php',
96'wp-includes/js/tinymce/plugins/wordpress/images',
97'wp-includes/js/tinymce/plugins/wordpress/langs',
98'wp-includes/js/tinymce/plugins/wordpress/popups.css',
99'wp-includes/js/tinymce/plugins/wordpress/wordpress.css',
100'wp-includes/js/tinymce/plugins/wphelp',
101'wp-includes/js/tinymce/themes/advanced/css',
102'wp-includes/js/tinymce/themes/advanced/images',
103'wp-includes/js/tinymce/themes/advanced/jscripts',
104'wp-includes/js/tinymce/themes/advanced/langs',
105'wp-includes/js/tinymce/tiny_mce_gzip.php',
106'wp-includes/js/wp-ajax.js',
107'wp-admin/admin-db.php',
108'wp-admin/cat.js',
109'wp-admin/categories.js',
110'wp-admin/custom-fields.js',
111'wp-admin/dbx-admin-key.js',
112'wp-admin/edit-comments.js',
113'wp-admin/install-rtl.css',
114'wp-admin/install.css',
115'wp-admin/upgrade-schema.php',
116'wp-admin/upload-functions.php',
117'wp-admin/upload-rtl.css',
118'wp-admin/upload.css',
119'wp-admin/upload.js',
120'wp-admin/users.js',
121'wp-admin/widgets-rtl.css',
122'wp-admin/widgets.css',
123'wp-admin/xfn.js',
124'wp-includes/js/tinymce/license.html',
125'wp-admin/cat-js.php',
126'wp-admin/edit-form-ajax-cat.php',
127'wp-admin/execute-pings.php',
128'wp-admin/import/b2.php',
129'wp-admin/inline-uploading.php',
130'wp-admin/link-categories.php',
131'wp-admin/list-manipulation.js',
132'wp-admin/list-manipulation.php',
133'wp-includes/comment-functions.php',
134'wp-includes/feed-functions.php',
135'wp-includes/functions-compat.php',
136'wp-includes/functions-formatting.php',
137'wp-includes/functions-post.php',
138'wp-includes/js/dbx-key.js',
139'wp-includes/js/tinymce/plugins/autosave/langs/cs.js',
140'wp-includes/js/tinymce/plugins/autosave/langs/sv.js',
141'wp-includes/js/tinymce/themes/advanced/editor_template_src.js',
142'wp-includes/links.php',
143'wp-includes/pluggable-functions.php',
144'wp-includes/template-functions-author.php',
145'wp-includes/template-functions-category.php',
146'wp-includes/template-functions-general.php',
147'wp-includes/template-functions-links.php',
148'wp-includes/template-functions-post.php',
149'wp-includes/wp-l10n.php',
150'wp-admin/import-b2.php',
151'wp-admin/import-blogger.php',
152'wp-admin/import-greymatter.php',
153'wp-admin/import-livejournal.php',
154'wp-admin/import-mt.php',
155'wp-admin/import-rss.php',
156'wp-admin/import-textpattern.php',
157'wp-admin/quicktags.js',
158'wp-images/fade-butt.png',
159'wp-images/get-firefox.png',
160'wp-images/header-shadow.png',
161'wp-images/smilies',
162'wp-images/wp-small.png',
163'wp-images/wpminilogo.png',
164'wp.php'
165);
166
167/**
168 * Upgrade the core of WordPress.
169 *
170 * This will create a .maintenance file at the base of the WordPress directory
171 * to ensure that people can not access the web site, when the files are being
172 * copied to their locations.
173 *
174 * The files in the {@link $_old_files} list will be removed and the new files
175 * copied from the zip file after the database is upgraded.
176 *
177 * The steps for the upgrader for after the new release is downloaded and
178 * unzipped is:
179 * 1. Test unzipped location for select files to ensure that unzipped worked.
180 * 2. Create the .maintenance file in current WordPress base.
181 * 3. Copy new WordPress directory over old WordPress files.
182 * 4. Upgrade WordPress to new version.
183 * 5. Delete new WordPress directory path.
184 * 6. Delete .maintenance file.
185 * 7. Remove old files.
186 * 8. Delete 'update_core' option.
187 *
188 * There are several areas of failure. For instance if PHP times out before step
189 * 6, then you will not be able to access any portion of your site. Also, since
190 * the upgrade will not continue where it left off, you will not be able to
191 * automatically remove old files and remove the 'update_core' option. This
192 * isn't that bad.
193 *
194 * If the copy of the new WordPress over the old fails, then the worse is that
195 * the new WordPress directory will remain.
196 *
197 * If it is assumed that every file will be copied over, including plugins and
198 * themes, then if you edit the default theme, you should rename it, so that
199 * your changes remain.
200 *
201 * @since 2.7.0
202 *
203 * @param string $from New release unzipped path.
204 * @param string $to Path to old WordPress installation.
205 * @return WP_Error|null WP_Error on failure, null on success.
206 */
207function update_core($from, $to) {
208 global $wp_filesystem, $_old_files;
209
210 @set_time_limit( 300 );
211
212 // Sanity check the unzipped distribution
213 apply_filters('update_feedback', __('Verifying the unpacked files'));
214 if ( !$wp_filesystem->exists($from . '/wordpress/wp-settings.php') || !$wp_filesystem->exists($from . '/wordpress/wp-admin/admin.php') ||
215 !$wp_filesystem->exists($from . '/wordpress/wp-includes/functions.php') ) {
216 $wp_filesystem->delete($from, true);
217 return new WP_Error('insane_distro', __('The update could not be unpacked') );
218 }
219
220 apply_filters('update_feedback', __('Installing the latest version'));
221
222 // Create maintenance file to signal that we are upgrading
223 $maintenance_string = '<?php $upgrading = ' . time() . '; ?>';
224 $maintenance_file = $to . '.maintenance';
225 $wp_filesystem->delete($maintenance_file);
226 $wp_filesystem->put_contents($maintenance_file, $maintenance_string, FS_CHMOD_FILE);
227
228 // Copy new versions of WP files into place.
229 $result = copy_dir($from . '/wordpress', $to);
230 if ( is_wp_error($result) ) {
231 $wp_filesystem->delete($maintenance_file);
232 $wp_filesystem->delete($from, true);
233 return $result;
234 }
235
236 // Remove old files
237 foreach ( $_old_files as $old_file ) {
238 $old_file = $to . $old_file;
239 if ( !$wp_filesystem->exists($old_file) )
240 continue;
241 $wp_filesystem->delete($old_file, true);
242 }
243
244 // Upgrade DB with separate request
245 apply_filters('update_feedback', __('Upgrading database'));
246 $db_upgrade_url = admin_url('upgrade.php?step=upgrade_db');
247 wp_remote_post($db_upgrade_url, array('timeout' => 60));
248
249 // Remove working directory
250 $wp_filesystem->delete($from, true);
251
252 // Force refresh of update information
253 if ( function_exists('delete_transient') )
254 delete_transient('update_core');
255 else
256 delete_option('update_core');
257
258 // Remove maintenance file, we're done.
259 $wp_filesystem->delete($maintenance_file);
260}
261
262?>
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