641 lines
23 KiB
PHP
641 lines
23 KiB
PHP
<?php
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/**
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* WordPress core upgrade functionality.
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*
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* @package WordPress
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* @subpackage Administration
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* @since 2.7.0
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*/
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/**
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* Stores files to be deleted.
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*
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* @since 2.7.0
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* @global array $_old_files
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* @var array
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* @name $_old_files
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*/
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global $_old_files;
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$_old_files = array(
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'wp-admin/bookmarklet.php',
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'wp-admin/css/upload.css',
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'wp-admin/css/upload-rtl.css',
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'wp-admin/css/press-this-ie.css',
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'wp-admin/css/press-this-ie-rtl.css',
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'wp-admin/edit-form.php',
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'wp-admin/link-import.php',
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'wp-admin/images/box-bg-left.gif',
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'wp-admin/images/box-bg-right.gif',
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'wp-admin/images/box-bg.gif',
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'wp-admin/images/box-butt-left.gif',
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'wp-admin/images/box-butt-right.gif',
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'wp-admin/images/box-butt.gif',
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'wp-admin/images/box-head-left.gif',
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'wp-admin/images/box-head-right.gif',
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'wp-admin/images/box-head.gif',
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'wp-admin/images/heading-bg.gif',
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'wp-admin/images/login-bkg-bottom.gif',
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'wp-admin/images/login-bkg-tile.gif',
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'wp-admin/images/notice.gif',
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'wp-admin/images/toggle.gif',
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'wp-admin/images/comment-stalk-classic.gif',
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'wp-admin/images/comment-stalk-fresh.gif',
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'wp-admin/images/comment-stalk-rtl.gif',
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'wp-admin/images/comment-pill.gif',
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'wp-admin/images/del.png',
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'wp-admin/images/media-button-gallery.gif',
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'wp-admin/images/media-buttons.gif',
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'wp-admin/images/tail.gif',
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'wp-admin/images/gear.png',
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'wp-admin/images/tab.png',
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'wp-admin/images/postbox-bg.gif',
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'wp-admin/includes/upload.php',
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'wp-admin/js/dbx-admin-key.js',
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'wp-admin/js/link-cat.js',
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'wp-admin/js/forms.js',
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'wp-admin/js/upload.js',
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'wp-admin/js/set-post-thumbnail-handler.js',
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'wp-admin/js/set-post-thumbnail-handler.dev.js',
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'wp-admin/js/page.js',
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'wp-admin/js/page.dev.js',
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'wp-admin/js/slug.js',
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'wp-admin/js/slug.dev.js',
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'wp-admin/profile-update.php',
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'wp-admin/templates.php',
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'wp-includes/images/audio.png',
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'wp-includes/images/css.png',
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'wp-includes/images/default.png',
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'wp-includes/images/doc.png',
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'wp-includes/images/exe.png',
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'wp-includes/images/html.png',
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'wp-includes/images/js.png',
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'wp-includes/images/pdf.png',
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'wp-includes/images/swf.png',
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'wp-includes/images/tar.png',
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'wp-includes/images/text.png',
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'wp-includes/images/video.png',
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'wp-includes/images/zip.png',
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'wp-includes/js/dbx.js',
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'wp-includes/js/fat.js',
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'wp-includes/js/list-manipulation.js',
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'wp-includes/js/jquery/jquery.dimensions.min.js',
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'wp-includes/js/tinymce/langs/en.js',
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'wp-includes/js/tinymce/plugins/autosave/editor_plugin_src.js',
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'wp-includes/js/tinymce/plugins/autosave/langs',
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'wp-includes/js/tinymce/plugins/directionality/images',
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'wp-includes/js/tinymce/plugins/directionality/langs',
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'wp-includes/js/tinymce/plugins/inlinepopups/css',
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'wp-includes/js/tinymce/plugins/inlinepopups/images',
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'wp-includes/js/tinymce/plugins/inlinepopups/jscripts',
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'wp-includes/js/tinymce/plugins/paste/images',
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'wp-includes/js/tinymce/plugins/paste/jscripts',
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'wp-includes/js/tinymce/plugins/paste/langs',
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'wp-includes/js/tinymce/plugins/spellchecker/classes/HttpClient.class.php',
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'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyGoogleSpell.class.php',
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'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyPspell.class.php',
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'wp-includes/js/tinymce/plugins/spellchecker/classes/TinyPspellShell.class.php',
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'wp-includes/js/tinymce/plugins/spellchecker/css/spellchecker.css',
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'wp-includes/js/tinymce/plugins/spellchecker/images',
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'wp-includes/js/tinymce/plugins/spellchecker/langs',
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'wp-includes/js/tinymce/plugins/spellchecker/tinyspell.php',
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'wp-includes/js/tinymce/plugins/wordpress/images',
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'wp-includes/js/tinymce/plugins/wordpress/langs',
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'wp-includes/js/tinymce/plugins/wordpress/popups.css',
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'wp-includes/js/tinymce/plugins/wordpress/wordpress.css',
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'wp-includes/js/tinymce/plugins/wphelp',
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'wp-includes/js/tinymce/themes/advanced/css',
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'wp-includes/js/tinymce/themes/advanced/images',
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'wp-includes/js/tinymce/themes/advanced/jscripts',
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'wp-includes/js/tinymce/themes/advanced/langs',
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'wp-includes/js/tinymce/tiny_mce_gzip.php',
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'wp-includes/js/wp-ajax.js',
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'wp-admin/admin-db.php',
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'wp-admin/cat.js',
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'wp-admin/categories.js',
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'wp-admin/custom-fields.js',
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'wp-admin/dbx-admin-key.js',
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'wp-admin/edit-comments.js',
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'wp-admin/install-rtl.css',
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'wp-admin/install.css',
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'wp-admin/upgrade-schema.php',
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'wp-admin/upload-functions.php',
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'wp-admin/upload-rtl.css',
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'wp-admin/upload.css',
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'wp-admin/upload.js',
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'wp-admin/users.js',
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'wp-admin/widgets-rtl.css',
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'wp-admin/widgets.css',
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'wp-admin/xfn.js',
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'wp-includes/js/tinymce/license.html',
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'wp-admin/cat-js.php',
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'wp-admin/edit-form-ajax-cat.php',
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'wp-admin/execute-pings.php',
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'wp-admin/import/b2.php',
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'wp-admin/import/btt.php',
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'wp-admin/import/jkw.php',
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'wp-admin/inline-uploading.php',
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'wp-admin/link-categories.php',
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'wp-admin/list-manipulation.js',
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'wp-admin/list-manipulation.php',
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'wp-includes/comment-functions.php',
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'wp-includes/feed-functions.php',
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'wp-includes/functions-compat.php',
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'wp-includes/functions-formatting.php',
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'wp-includes/functions-post.php',
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'wp-includes/js/dbx-key.js',
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'wp-includes/js/tinymce/plugins/autosave/langs/cs.js',
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'wp-includes/js/tinymce/plugins/autosave/langs/sv.js',
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'wp-includes/js/tinymce/themes/advanced/editor_template_src.js',
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'wp-includes/links.php',
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'wp-includes/pluggable-functions.php',
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'wp-includes/template-functions-author.php',
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'wp-includes/template-functions-category.php',
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'wp-includes/template-functions-general.php',
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'wp-includes/template-functions-links.php',
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'wp-includes/template-functions-post.php',
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'wp-includes/wp-l10n.php',
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'wp-admin/import-b2.php',
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'wp-admin/import-blogger.php',
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'wp-admin/import-greymatter.php',
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'wp-admin/import-livejournal.php',
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'wp-admin/import-mt.php',
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'wp-admin/import-rss.php',
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'wp-admin/import-textpattern.php',
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'wp-admin/quicktags.js',
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'wp-images/fade-butt.png',
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'wp-images/get-firefox.png',
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'wp-images/header-shadow.png',
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'wp-images/smilies',
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'wp-images/wp-small.png',
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'wp-images/wpminilogo.png',
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'wp.php',
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'wp-includes/gettext.php',
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'wp-includes/streams.php',
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// MU
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'wp-admin/wpmu-admin.php',
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'wp-admin/wpmu-blogs.php',
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'wp-admin/wpmu-edit.php',
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'wp-admin/wpmu-options.php',
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'wp-admin/wpmu-themes.php',
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'wp-admin/wpmu-upgrade-site.php',
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'wp-admin/wpmu-users.php',
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'wp-includes/wpmu-default-filters.php',
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'wp-includes/wpmu-functions.php',
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'wpmu-settings.php',
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'index-install.php',
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'README.txt',
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'htaccess.dist',
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'wp-admin/css/mu-rtl.css',
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'wp-admin/css/mu.css',
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'wp-admin/images/site-admin.png',
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'wp-admin/includes/mu.php',
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'wp-includes/images/wordpress-mu.png',
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// 3.0
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'wp-admin/categories.php',
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'wp-admin/edit-category-form.php',
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'wp-admin/edit-page-form.php',
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'wp-admin/edit-pages.php',
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'wp-admin/images/wp-logo.gif',
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'wp-admin/js/wp-gears.dev.js',
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'wp-admin/js/wp-gears.js',
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'wp-admin/options-misc.php',
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'wp-admin/page-new.php',
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'wp-admin/page.php',
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'wp-admin/rtl.css',
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'wp-admin/rtl.dev.css',
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'wp-admin/update-links.php',
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'wp-admin/wp-admin.css',
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'wp-admin/wp-admin.dev.css',
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'wp-includes/js/codepress',
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'wp-includes/js/jquery/autocomplete.dev.js',
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'wp-includes/js/jquery/interface.js',
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'wp-includes/js/jquery/autocomplete.js',
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'wp-includes/js/scriptaculous/prototype.js',
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'wp-includes/js/tinymce/wp-tinymce.js',
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'wp-admin/import',
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'wp-admin/images/ico-edit.png',
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'wp-admin/images/fav-top.png',
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'wp-admin/images/ico-close.png',
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'wp-admin/images/admin-header-footer.png',
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'wp-admin/images/screen-options-left.gif',
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'wp-admin/images/ico-add.png',
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'wp-admin/images/browse-happy.gif',
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'wp-admin/images/ico-viewpage.png',
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// 3.1
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'wp-includes/js/tinymce/blank.htm',
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'wp-includes/js/tinymce/plugins/safari',
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'wp-admin/edit-link-categories.php',
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'wp-admin/edit-post-rows.php',
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'wp-admin/edit-attachment-rows.php',
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'wp-admin/link-category.php',
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'wp-admin/edit-link-category-form.php',
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'wp-admin/sidebar.php',
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'wp-admin/images/list-vs.png',
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'wp-admin/images/button-grad-vs.png',
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'wp-admin/images/button-grad-active-vs.png',
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'wp-admin/images/fav-arrow-vs.gif',
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'wp-admin/images/fav-arrow-vs-rtl.gif',
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'wp-admin/images/fav-top-vs.gif',
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'wp-admin/images/screen-options-right.gif',
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'wp-admin/images/screen-options-right-up.gif',
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'wp-admin/images/visit-site-button-grad-vs.gif',
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'wp-admin/images/visit-site-button-grad.gif',
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'wp-includes/classes.php',
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// 3.2
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'wp-includes/default-embeds.php',
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'wp-includes/js/tinymce/plugins/wordpress/img/more.gif',
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'wp-includes/js/tinymce/plugins/wordpress/img/toolbars.gif',
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'wp-includes/js/tinymce/plugins/wordpress/img/help.gif',
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'wp-includes/js/tinymce/themes/advanced/img/fm.gif',
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'wp-includes/js/tinymce/themes/advanced/img/sflogo.png',
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'wp-admin/js/list-table.js',
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'wp-admin/js/list-table.dev.js',
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'wp-admin/images/logo-login.gif',
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'wp-admin/images/star.gif',
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// 3.3
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'wp-admin/css/colors-classic-rtl.css',
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'wp-admin/css/colors-classic-rtl.dev.css',
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'wp-admin/css/colors-fresh-rtl.css',
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'wp-admin/css/colors-fresh-rtl.dev.css',
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'wp-admin/css/dashboard-rtl.css',
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'wp-admin/css/dashboard-rtl.dev.css',
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'wp-admin/css/dashboard.css',
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'wp-admin/css/dashboard.dev.css',
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'wp-admin/css/farbtastic-rtl.css',
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'wp-admin/css/global-rtl.css',
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'wp-admin/css/global-rtl.dev.css',
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'wp-admin/css/global.css',
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'wp-admin/css/global.dev.css',
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'wp-admin/css/install-rtl.css',
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'wp-admin/css/install-rtl.dev.css',
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'wp-admin/css/login-rtl.css',
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'wp-admin/css/login-rtl.dev.css',
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'wp-admin/css/login.css',
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'wp-admin/css/login.dev.css',
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'wp-admin/css/ms.css',
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'wp-admin/css/ms.dev.css',
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'wp-admin/css/nav-menu-rtl.css',
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'wp-admin/css/nav-menu-rtl.dev.css',
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'wp-admin/css/nav-menu.css',
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'wp-admin/css/nav-menu.dev.css',
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'wp-admin/css/plugin-install-rtl.css',
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'wp-admin/css/plugin-install-rtl.dev.css',
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'wp-admin/css/plugin-install.css',
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'wp-admin/css/plugin-install.dev.css',
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'wp-admin/css/press-this-rtl.css',
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'wp-admin/css/press-this-rtl.dev.css',
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'wp-admin/css/press-this.css',
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'wp-admin/css/press-this.dev.css',
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'wp-admin/css/theme-editor-rtl.css',
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'wp-admin/css/theme-editor-rtl.dev.css',
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'wp-admin/css/theme-editor.css',
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'wp-admin/css/theme-editor.dev.css',
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'wp-admin/css/theme-install-rtl.css',
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'wp-admin/css/theme-install-rtl.dev.css',
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'wp-admin/css/theme-install.css',
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'wp-admin/css/theme-install.dev.css',
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'wp-admin/css/widgets-rtl.css',
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'wp-admin/css/widgets-rtl.dev.css',
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'wp-admin/css/widgets.css',
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'wp-admin/css/widgets.dev.css',
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'wp-admin/includes/internal-linking.php',
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'wp-includes/images/admin-bar-sprite-rtl.png',
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'wp-includes/js/jquery/ui.button.js',
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'wp-includes/js/jquery/ui.core.js',
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'wp-includes/js/jquery/ui.dialog.js',
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'wp-includes/js/jquery/ui.draggable.js',
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'wp-includes/js/jquery/ui.droppable.js',
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'wp-includes/js/jquery/ui.mouse.js',
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'wp-includes/js/jquery/ui.position.js',
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'wp-includes/js/jquery/ui.resizable.js',
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'wp-includes/js/jquery/ui.selectable.js',
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'wp-includes/js/jquery/ui.sortable.js',
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'wp-includes/js/jquery/ui.tabs.js',
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'wp-includes/js/jquery/ui.widget.js',
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'wp-includes/js/l10n.dev.js',
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'wp-includes/js/l10n.js',
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'wp-includes/js/tinymce/plugins/wplink/css',
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'wp-includes/js/tinymce/plugins/wplink/img',
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'wp-includes/js/tinymce/plugins/wplink/js',
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'wp-includes/js/tinymce/themes/advanced/img/wpicons.png',
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'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/butt2.png',
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'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/button_bg.png',
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'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/down_arrow.gif',
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'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/fade-butt.png',
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'wp-includes/js/tinymce/themes/advanced/skins/wp_theme/img/separator.gif',
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);
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/**
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* Stores new files in wp-content to copy
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*
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* The contents of this array indicate any new bundled plugins/themes which
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* should be installed with the WordPress Upgrade. These items will not be
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* re-installed in future upgrades, this behaviour is controlled by the
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* introduced version present here being older than the current installed version.
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*
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* The content of this array should follow the following format:
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* Filename (relative to wp-content) => Introduced version
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* Directories should be noted by suffixing it with a trailing slash (/)
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*
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* @since 3.2.0
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* @global array $_new_bundled_files
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* @var array
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* @name $_new_bundled_files
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*/
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global $_new_bundled_files;
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$_new_bundled_files = array(
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'plugins/akismet/' => '2.0',
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'themes/twentyten/' => '3.0',
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'themes/twentyeleven/' => '3.2'
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);
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/**
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* Upgrade the core of WordPress.
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*
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* This will create a .maintenance file at the base of the WordPress directory
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* to ensure that people can not access the web site, when the files are being
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* copied to their locations.
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*
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* The files in the {@link $_old_files} list will be removed and the new files
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* copied from the zip file after the database is upgraded.
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*
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* The files in the {@link $_new_bundled_files} list will be added to the installation
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* if the version is greater than or equal to the old version being upgraded.
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*
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* The steps for the upgrader for after the new release is downloaded and
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* unzipped is:
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* 1. Test unzipped location for select files to ensure that unzipped worked.
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* 2. Create the .maintenance file in current WordPress base.
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* 3. Copy new WordPress directory over old WordPress files.
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* 4. Upgrade WordPress to new version.
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* 4.1. Copy all files/folders other than wp-content
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* 4.2. Copy any language files to WP_LANG_DIR (which may differ from WP_CONTENT_DIR
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* 4.3. Copy any new bundled themes/plugins to their respective locations
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* 5. Delete new WordPress directory path.
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* 6. Delete .maintenance file.
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* 7. Remove old files.
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* 8. Delete 'update_core' option.
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*
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* There are several areas of failure. For instance if PHP times out before step
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* 6, then you will not be able to access any portion of your site. Also, since
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* the upgrade will not continue where it left off, you will not be able to
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* automatically remove old files and remove the 'update_core' option. This
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* isn't that bad.
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*
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* If the copy of the new WordPress over the old fails, then the worse is that
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* the new WordPress directory will remain.
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*
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* If it is assumed that every file will be copied over, including plugins and
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* themes, then if you edit the default theme, you should rename it, so that
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* your changes remain.
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*
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* @since 2.7.0
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*
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* @param string $from New release unzipped path.
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* @param string $to Path to old WordPress installation.
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* @return WP_Error|null WP_Error on failure, null on success.
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*/
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function update_core($from, $to) {
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global $wp_filesystem, $_old_files, $_new_bundled_files, $wpdb;
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@set_time_limit( 300 );
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$php_version = phpversion();
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$mysql_version = $wpdb->db_version();
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$required_php_version = '5.2.4';
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$required_mysql_version = '5.0';
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$wp_version = '3.3';
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$php_compat = version_compare( $php_version, $required_php_version, '>=' );
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if ( file_exists( WP_CONTENT_DIR . '/db.php' ) && empty( $wpdb->is_mysql ) )
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$mysql_compat = true;
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else
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$mysql_compat = version_compare( $mysql_version, $required_mysql_version, '>=' );
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if ( !$mysql_compat || !$php_compat )
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$wp_filesystem->delete($from, true);
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if ( !$mysql_compat && !$php_compat )
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return new WP_Error( 'php_mysql_not_compatible', sprintf( __('The update cannot be installed because WordPress %1$s requires PHP version %2$s or higher and MySQL version %3$s or higher. You are running PHP version %4$s and MySQL version %5$s.'), $wp_version, $required_php_version, $required_mysql_version, $php_version, $mysql_version ) );
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elseif ( !$php_compat )
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return new WP_Error( 'php_not_compatible', sprintf( __('The update cannot be installed because WordPress %1$s requires PHP version %2$s or higher. You are running version %3$s.'), $wp_version, $required_php_version, $php_version ) );
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elseif ( !$mysql_compat )
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return new WP_Error( 'mysql_not_compatible', sprintf( __('The update cannot be installed because WordPress %1$s requires MySQL version %2$s or higher. You are running version %3$s.'), $wp_version, $required_mysql_version, $mysql_version ) );
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// Sanity check the unzipped distribution
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apply_filters('update_feedback', __('Verifying the unpacked files…'));
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$distro = '';
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$roots = array( '/wordpress/', '/wordpress-mu/' );
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foreach( $roots as $root ) {
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if ( $wp_filesystem->exists($from . $root . 'readme.html') && $wp_filesystem->exists($from . $root . 'wp-includes/version.php') ) {
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$distro = $root;
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break;
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}
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}
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if ( !$distro ) {
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$wp_filesystem->delete($from, true);
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return new WP_Error('insane_distro', __('The update could not be unpacked') );
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}
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apply_filters('update_feedback', __('Installing the latest version…'));
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// Create maintenance file to signal that we are upgrading
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$maintenance_string = '<?php $upgrading = ' . time() . '; ?>';
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$maintenance_file = $to . '.maintenance';
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$wp_filesystem->delete($maintenance_file);
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$wp_filesystem->put_contents($maintenance_file, $maintenance_string, FS_CHMOD_FILE);
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// Copy new versions of WP files into place.
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$result = _copy_dir($from . $distro, $to, array('wp-content') );
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// Custom Content Directory needs updating now.
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// Copy Languages
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if ( !is_wp_error($result) && $wp_filesystem->is_dir($from . $distro . 'wp-content/languages') ) {
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if ( WP_LANG_DIR != ABSPATH . WPINC . '/languages' || @is_dir(WP_LANG_DIR) )
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$lang_dir = WP_LANG_DIR;
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else
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$lang_dir = WP_CONTENT_DIR . '/languages';
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if ( !@is_dir($lang_dir) && 0 === strpos($lang_dir, ABSPATH) ) { // Check the language directory exists first
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$wp_filesystem->mkdir($to . str_replace(ABSPATH, '', $lang_dir), FS_CHMOD_DIR); // If it's within the ABSPATH we can handle it here, otherwise they're out of luck.
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clearstatcache(); // for FTP, Need to clear the stat cache
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}
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if ( @is_dir($lang_dir) ) {
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$wp_lang_dir = $wp_filesystem->find_folder($lang_dir);
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if ( $wp_lang_dir )
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$result = copy_dir($from . $distro . 'wp-content/languages/', $wp_lang_dir);
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}
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}
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// Copy New bundled plugins & themes
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// This gives us the ability to install new plugins & themes bundled with future versions of WordPress whilst avoiding the re-install upon upgrade issue.
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if ( !is_wp_error($result) && ( ! defined('CORE_UPGRADE_SKIP_NEW_BUNDLED') || ! CORE_UPGRADE_SKIP_NEW_BUNDLED ) ) {
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$old_version = $GLOBALS['wp_version']; // $wp_version in local scope == new version
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foreach ( (array) $_new_bundled_files as $file => $introduced_version ) {
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// If $introduced version is greater than what the site was previously running
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if ( version_compare($introduced_version, $old_version, '>') ) {
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$directory = ('/' == $file[ strlen($file)-1 ]);
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list($type, $filename) = explode('/', $file, 2);
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if ( 'plugins' == $type )
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$dest = $wp_filesystem->wp_plugins_dir();
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elseif ( 'themes' == $type )
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$dest = trailingslashit($wp_filesystem->wp_themes_dir()); // Back-compat, ::wp_themes_dir() did not return trailingslash'd pre-3.2
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else
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continue;
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if ( ! $directory ) {
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if ( $wp_filesystem->exists($dest . $filename) )
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continue;
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if ( ! $wp_filesystem->copy($from . $distro . 'wp-content/' . $file, $dest . $filename, FS_CHMOD_FILE) )
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$result = new WP_Error('copy_failed', __('Could not copy file.'), $dest . $filename);
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} else {
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if ( $wp_filesystem->is_dir($dest . $filename) )
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continue;
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$wp_filesystem->mkdir($dest . $filename, FS_CHMOD_DIR);
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$_result = copy_dir( $from . $distro . 'wp-content/' . $file, $dest . $filename);
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if ( is_wp_error($_result) ) //If a error occurs partway through this final step, keep the error flowing through, but keep process going.
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$result = $_result;
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}
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}
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} //end foreach
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}
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// Handle $result error from the above blocks
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if ( is_wp_error($result) ) {
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$wp_filesystem->delete($maintenance_file);
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$wp_filesystem->delete($from, true);
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return $result;
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}
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// Remove old files
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foreach ( $_old_files as $old_file ) {
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$old_file = $to . $old_file;
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if ( !$wp_filesystem->exists($old_file) )
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continue;
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$wp_filesystem->delete($old_file, true);
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}
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// Upgrade DB with separate request
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apply_filters('update_feedback', __('Upgrading database…'));
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$db_upgrade_url = admin_url('upgrade.php?step=upgrade_db');
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wp_remote_post($db_upgrade_url, array('timeout' => 60));
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// Remove working directory
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$wp_filesystem->delete($from, true);
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// Force refresh of update information
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if ( function_exists('delete_site_transient') )
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delete_site_transient('update_core');
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else
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delete_option('update_core');
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// Remove maintenance file, we're done.
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$wp_filesystem->delete($maintenance_file);
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// If we made it this far:
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do_action( '_core_updated_successfully', $wp_version );
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return $wp_version;
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}
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/**
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* Copies a directory from one location to another via the WordPress Filesystem Abstraction.
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* Assumes that WP_Filesystem() has already been called and setup.
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*
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* This is a temporary function for the 3.1 -> 3.2 upgrade only and will be removed in 3.3
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*
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* @ignore
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* @since 3.2.0
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* @see copy_dir()
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*
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* @param string $from source directory
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* @param string $to destination directory
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* @param array $skip_list a list of files/folders to skip copying
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* @return mixed WP_Error on failure, True on success.
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*/
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function _copy_dir($from, $to, $skip_list = array() ) {
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global $wp_filesystem;
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$dirlist = $wp_filesystem->dirlist($from);
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$from = trailingslashit($from);
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$to = trailingslashit($to);
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$skip_regex = '';
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foreach ( (array)$skip_list as $key => $skip_file )
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$skip_regex .= preg_quote($skip_file, '!') . '|';
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if ( !empty($skip_regex) )
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$skip_regex = '!(' . rtrim($skip_regex, '|') . ')$!i';
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foreach ( (array) $dirlist as $filename => $fileinfo ) {
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if ( !empty($skip_regex) )
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if ( preg_match($skip_regex, $from . $filename) )
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continue;
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if ( 'f' == $fileinfo['type'] ) {
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if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) ) {
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// If copy failed, chmod file to 0644 and try again.
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$wp_filesystem->chmod($to . $filename, 0644);
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if ( ! $wp_filesystem->copy($from . $filename, $to . $filename, true, FS_CHMOD_FILE) )
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return new WP_Error('copy_failed', __('Could not copy file.'), $to . $filename);
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}
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} elseif ( 'd' == $fileinfo['type'] ) {
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if ( !$wp_filesystem->is_dir($to . $filename) ) {
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if ( !$wp_filesystem->mkdir($to . $filename, FS_CHMOD_DIR) )
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return new WP_Error('mkdir_failed', __('Could not create directory.'), $to . $filename);
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}
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$result = _copy_dir($from . $filename, $to . $filename, $skip_list);
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if ( is_wp_error($result) )
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return $result;
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}
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}
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return true;
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}
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/**
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* Redirect to the About WordPress page after a successful upgrade.
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*
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* This function is only needed when the existing install is older than 3.3.0.
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*
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* @since 3.3.0
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*
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*/
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function _redirect_to_about_wordpress( $new_version ) {
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global $wp_version, $pagenow, $action;
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if ( version_compare( $wp_version, '3.3', '>=' ) )
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return;
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// Ensure we only run this on the update-core.php page. wp_update_core() could be called in other contexts.
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if ( 'update-core.php' != $pagenow )
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return;
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if ( 'do-core-upgrade' != $action && 'do-core-reinstall' != $action )
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return;
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// Load the updated default text localization domain for new strings
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load_default_textdomain();
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// See do_core_upgrade()
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show_message( __('WordPress updated successfully') );
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show_message( '<span class="hide-if-no-js">' . sprintf( __( 'Welcome to WordPress %1$s. You will be redirected to the About WordPress screen. If not, click <a href="%s">here</a>.' ), $new_version, esc_url( admin_url( 'about.php?updated' ) ) ) . '</span>' );
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show_message( '<span class="hide-if-js">' . sprintf( __( 'Welcome to WordPress %1$s. <a href="%2$s">Learn more</a>.' ), $new_version, esc_url( admin_url( 'about.php?updated' ) ) ) . '</span>' );
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echo '</div>';
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?>
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<script type="text/javascript">
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window.location = '<?php echo admin_url( 'about.php?updated' ); ?>';
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</script>
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<?php
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// Include admin-footer.php and exit
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include(ABSPATH . 'wp-admin/admin-footer.php');
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exit();
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}
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add_action( '_core_updated_successfully', '_redirect_to_about_wordpress' );
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