revision.php (5533B)
1 <?php 2 /** 3 * Revisions administration panel 4 * 5 * Requires wp-admin/includes/revision.php. 6 * 7 * @package WordPress 8 * @subpackage Administration 9 * @since 2.6.0 10 */ 11 12 /** WordPress Administration Bootstrap */ 13 require_once __DIR__ . '/admin.php'; 14 15 require ABSPATH . 'wp-admin/includes/revision.php'; 16 17 /** 18 * @global int $revision Optional. The revision ID. 19 * @global string $action The action to take. 20 * Accepts 'restore', 'view' or 'edit'. 21 * @global int $from The revision to compare from. 22 * @global int $to Optional, required if revision missing. The revision to compare to. 23 */ 24 wp_reset_vars( array( 'revision', 'action', 'from', 'to' ) ); 25 26 $revision_id = absint( $revision ); 27 28 $from = is_numeric( $from ) ? absint( $from ) : null; 29 if ( ! $revision_id ) { 30 $revision_id = absint( $to ); 31 } 32 $redirect = 'edit.php'; 33 34 switch ( $action ) { 35 case 'restore': 36 $revision = wp_get_post_revision( $revision_id ); 37 if ( ! $revision ) { 38 break; 39 } 40 41 if ( ! current_user_can( 'edit_post', $revision->post_parent ) ) { 42 break; 43 } 44 45 $post = get_post( $revision->post_parent ); 46 if ( ! $post ) { 47 break; 48 } 49 50 // Don't restore if revisions are disabled and this is not an autosave. 51 if ( ! wp_revisions_enabled( $post ) && ! wp_is_post_autosave( $revision ) ) { 52 $redirect = 'edit.php?post_type=' . $post->post_type; 53 break; 54 } 55 56 // Don't restore if the post is locked. 57 if ( wp_check_post_lock( $post->ID ) ) { 58 break; 59 } 60 61 check_admin_referer( "restore-post_{$revision->ID}" ); 62 63 /* 64 * Ensure the global $post remains the same after revision is restored. 65 * Because wp_insert_post() and wp_transition_post_status() are called 66 * during the process, plugins can unexpectedly modify $post. 67 */ 68 $backup_global_post = clone $post; 69 70 wp_restore_post_revision( $revision->ID ); 71 72 // Restore the global $post as it was before. 73 $post = $backup_global_post; 74 75 $redirect = add_query_arg( 76 array( 77 'message' => 5, 78 'revision' => $revision->ID, 79 ), 80 get_edit_post_link( $post->ID, 'url' ) 81 ); 82 break; 83 case 'view': 84 case 'edit': 85 default: 86 $revision = wp_get_post_revision( $revision_id ); 87 if ( ! $revision ) { 88 break; 89 } 90 91 $post = get_post( $revision->post_parent ); 92 if ( ! $post ) { 93 break; 94 } 95 96 if ( ! current_user_can( 'read_post', $revision->ID ) || ! current_user_can( 'edit_post', $revision->post_parent ) ) { 97 break; 98 } 99 100 // Bail if revisions are disabled and this is not an autosave. 101 if ( ! wp_revisions_enabled( $post ) && ! wp_is_post_autosave( $revision ) ) { 102 $redirect = 'edit.php?post_type=' . $post->post_type; 103 break; 104 } 105 106 $post_edit_link = get_edit_post_link(); 107 $post_title = '<a href="' . $post_edit_link . '">' . _draft_or_post_title() . '</a>'; 108 /* translators: %s: Post title. */ 109 $h1 = sprintf( __( 'Compare Revisions of “%s”' ), $post_title ); 110 $return_to_post = '<a href="' . $post_edit_link . '">' . __( '← Go to editor' ) . '</a>'; 111 $title = __( 'Revisions' ); 112 113 $redirect = false; 114 break; 115 } 116 117 // Empty post_type means either malformed object found, or no valid parent was found. 118 if ( ! $redirect && empty( $post->post_type ) ) { 119 $redirect = 'edit.php'; 120 } 121 122 if ( ! empty( $redirect ) ) { 123 wp_redirect( $redirect ); 124 exit; 125 } 126 127 // This is so that the correct "Edit" menu item is selected. 128 if ( ! empty( $post->post_type ) && 'post' != $post->post_type ) { 129 $parent_file = 'edit.php?post_type=' . $post->post_type; 130 } else { 131 $parent_file = 'edit.php'; 132 } 133 $submenu_file = $parent_file; 134 135 wp_enqueue_script( 'revisions' ); 136 wp_localize_script( 'revisions', '_wpRevisionsSettings', wp_prepare_revisions_for_js( $post, $revision_id, $from ) ); 137 138 /* Revisions Help Tab */ 139 140 $revisions_overview = '<p>' . __( 'This screen is used for managing your content revisions.' ) . '</p>'; 141 $revisions_overview .= '<p>' . __( 'Revisions are saved copies of your post or page, which are periodically created as you update your content. The red text on the left shows the content that was removed. The green text on the right shows the content that was added.' ) . '</p>'; 142 $revisions_overview .= '<p>' . __( 'From this screen you can review, compare, and restore revisions:' ) . '</p>'; 143 $revisions_overview .= '<ul><li>' . __( 'To navigate between revisions, <strong>drag the slider handle left or right</strong> or <strong>use the Previous or Next buttons</strong>.' ) . '</li>'; 144 $revisions_overview .= '<li>' . __( 'Compare two different revisions by <strong>selecting the “Compare any two revisions” box</strong> to the side.' ) . '</li>'; 145 $revisions_overview .= '<li>' . __( 'To restore a revision, <strong>click Restore This Revision</strong>.' ) . '</li></ul>'; 146 147 get_current_screen()->add_help_tab( 148 array( 149 'id' => 'revisions-overview', 150 'title' => __( 'Overview' ), 151 'content' => $revisions_overview, 152 ) 153 ); 154 155 $revisions_sidebar = '<p><strong>' . __( 'For more information:' ) . '</strong></p>'; 156 $revisions_sidebar .= '<p>' . __( '<a href="https://wordpress.org/support/article/revisions/">Revisions Management</a>' ) . '</p>'; 157 $revisions_sidebar .= '<p>' . __( '<a href="https://wordpress.org/support/">Support</a>' ) . '</p>'; 158 159 get_current_screen()->set_help_sidebar( $revisions_sidebar ); 160 161 require_once ABSPATH . 'wp-admin/admin-header.php'; 162 163 ?> 164 165 <div class="wrap"> 166 <h1 class="long-header"><?php echo $h1; ?></h1> 167 <?php echo $return_to_post; ?> 168 </div> 169 <?php 170 wp_print_revision_templates(); 171 172 require_once ABSPATH . 'wp-admin/admin-footer.php';