WordPress/wp-admin/includes/bookmark.php
Sergey Biryukov a91c3fbdc0 General: Replace Cheatin’ uh? with friendlier error messages.
While intended as a playful error message, `Cheatin’ uh?` can be interpreted as insulting or accusatory in an already stressful situation. This replaces Cheatin’ with more meaningful error messages, depending on the error that occurs.

Props ElectricFeet, EricMeyer, karmatosed, dd32, BandonRandon, melchoyce, kristastevens for language; dmsnell for original patch; peterwilsoncc.
Merged [42648] and [42719] to the 4.9 branch.
Fixes #38332.
Built from https://develop.svn.wordpress.org/branches/4.9@42811


git-svn-id: http://core.svn.wordpress.org/branches/4.9@42641 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2018-03-09 00:15:42 +00:00

317 lines
8.9 KiB
PHP

<?php
/**
* WordPress Bookmark Administration API
*
* @package WordPress
* @subpackage Administration
*/
/**
* Add a link to using values provided in $_POST.
*
* @since 2.0.0
*
* @return int|WP_Error Value 0 or WP_Error on failure. The link ID on success.
*/
function add_link() {
return edit_link();
}
/**
* Updates or inserts a link using values provided in $_POST.
*
* @since 2.0.0
*
* @param int $link_id Optional. ID of the link to edit. Default 0.
* @return int|WP_Error Value 0 or WP_Error on failure. The link ID on success.
*/
function edit_link( $link_id = 0 ) {
if ( ! current_user_can( 'manage_links' ) ) {
wp_die(
'<h1>' . __( 'You need a higher level of permission.' ) . '</h1>' .
'<p>' . __( 'Sorry, you are not allowed to edit the links for this site.' ) . '</p>',
403
);
}
$_POST['link_url'] = esc_html( $_POST['link_url'] );
$_POST['link_url'] = esc_url($_POST['link_url']);
$_POST['link_name'] = esc_html( $_POST['link_name'] );
$_POST['link_image'] = esc_html( $_POST['link_image'] );
$_POST['link_rss'] = esc_url($_POST['link_rss']);
if ( !isset($_POST['link_visible']) || 'N' != $_POST['link_visible'] )
$_POST['link_visible'] = 'Y';
if ( !empty( $link_id ) ) {
$_POST['link_id'] = $link_id;
return wp_update_link( $_POST );
} else {
return wp_insert_link( $_POST );
}
}
/**
* Retrieves the default link for editing.
*
* @since 2.0.0
*
* @return stdClass Default link object.
*/
function get_default_link_to_edit() {
$link = new stdClass;
if ( isset( $_GET['linkurl'] ) )
$link->link_url = esc_url( wp_unslash( $_GET['linkurl'] ) );
else
$link->link_url = '';
if ( isset( $_GET['name'] ) )
$link->link_name = esc_attr( wp_unslash( $_GET['name'] ) );
else
$link->link_name = '';
$link->link_visible = 'Y';
return $link;
}
/**
* Deletes a specified link from the database.
*
* @since 2.0.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $link_id ID of the link to delete
* @return true Always true.
*/
function wp_delete_link( $link_id ) {
global $wpdb;
/**
* Fires before a link is deleted.
*
* @since 2.0.0
*
* @param int $link_id ID of the link to delete.
*/
do_action( 'delete_link', $link_id );
wp_delete_object_term_relationships( $link_id, 'link_category' );
$wpdb->delete( $wpdb->links, array( 'link_id' => $link_id ) );
/**
* Fires after a link has been deleted.
*
* @since 2.2.0
*
* @param int $link_id ID of the deleted link.
*/
do_action( 'deleted_link', $link_id );
clean_bookmark_cache( $link_id );
return true;
}
/**
* Retrieves the link categories associated with the link specified.
*
* @since 2.1.0
*
* @param int $link_id Link ID to look up
* @return array The requested link's categories
*/
function wp_get_link_cats( $link_id = 0 ) {
$cats = wp_get_object_terms( $link_id, 'link_category', array('fields' => 'ids') );
return array_unique( $cats );
}
/**
* Retrieves link data based on its ID.
*
* @since 2.0.0
*
* @param int|stdClass $link Link ID or object to retrieve.
* @return object Link object for editing.
*/
function get_link_to_edit( $link ) {
return get_bookmark( $link, OBJECT, 'edit' );
}
/**
* Inserts/updates links into/in the database.
*
* @since 2.0.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param array $linkdata Elements that make up the link to insert.
* @param bool $wp_error Optional. Whether to return a WP_Error object on failure. Default false.
* @return int|WP_Error Value 0 or WP_Error on failure. The link ID on success.
*/
function wp_insert_link( $linkdata, $wp_error = false ) {
global $wpdb;
$defaults = array( 'link_id' => 0, 'link_name' => '', 'link_url' => '', 'link_rating' => 0 );
$args = wp_parse_args( $linkdata, $defaults );
$r = wp_unslash( sanitize_bookmark( $args, 'db' ) );
$link_id = $r['link_id'];
$link_name = $r['link_name'];
$link_url = $r['link_url'];
$update = false;
if ( ! empty( $link_id ) ) {
$update = true;
}
if ( trim( $link_name ) == '' ) {
if ( trim( $link_url ) != '' ) {
$link_name = $link_url;
} else {
return 0;
}
}
if ( trim( $link_url ) == '' ) {
return 0;
}
$link_rating = ( ! empty( $r['link_rating'] ) ) ? $r['link_rating'] : 0;
$link_image = ( ! empty( $r['link_image'] ) ) ? $r['link_image'] : '';
$link_target = ( ! empty( $r['link_target'] ) ) ? $r['link_target'] : '';
$link_visible = ( ! empty( $r['link_visible'] ) ) ? $r['link_visible'] : 'Y';
$link_owner = ( ! empty( $r['link_owner'] ) ) ? $r['link_owner'] : get_current_user_id();
$link_notes = ( ! empty( $r['link_notes'] ) ) ? $r['link_notes'] : '';
$link_description = ( ! empty( $r['link_description'] ) ) ? $r['link_description'] : '';
$link_rss = ( ! empty( $r['link_rss'] ) ) ? $r['link_rss'] : '';
$link_rel = ( ! empty( $r['link_rel'] ) ) ? $r['link_rel'] : '';
$link_category = ( ! empty( $r['link_category'] ) ) ? $r['link_category'] : array();
// Make sure we set a valid category.
if ( ! is_array( $link_category ) || 0 == count( $link_category ) ) {
$link_category = array( get_option( 'default_link_category' ) );
}
if ( $update ) {
if ( false === $wpdb->update( $wpdb->links, compact( 'link_url', 'link_name', 'link_image', 'link_target', 'link_description', 'link_visible', 'link_rating', 'link_rel', 'link_notes', 'link_rss' ), compact( 'link_id' ) ) ) {
if ( $wp_error ) {
return new WP_Error( 'db_update_error', __( 'Could not update link in the database' ), $wpdb->last_error );
} else {
return 0;
}
}
} else {
if ( false === $wpdb->insert( $wpdb->links, compact( 'link_url', 'link_name', 'link_image', 'link_target', 'link_description', 'link_visible', 'link_owner', 'link_rating', 'link_rel', 'link_notes', 'link_rss' ) ) ) {
if ( $wp_error ) {
return new WP_Error( 'db_insert_error', __( 'Could not insert link into the database' ), $wpdb->last_error );
} else {
return 0;
}
}
$link_id = (int) $wpdb->insert_id;
}
wp_set_link_cats( $link_id, $link_category );
if ( $update ) {
/**
* Fires after a link was updated in the database.
*
* @since 2.0.0
*
* @param int $link_id ID of the link that was updated.
*/
do_action( 'edit_link', $link_id );
} else {
/**
* Fires after a link was added to the database.
*
* @since 2.0.0
*
* @param int $link_id ID of the link that was added.
*/
do_action( 'add_link', $link_id );
}
clean_bookmark_cache( $link_id );
return $link_id;
}
/**
* Update link with the specified link categories.
*
* @since 2.1.0
*
* @param int $link_id ID of the link to update.
* @param array $link_categories Array of link categories to add the link to.
*/
function wp_set_link_cats( $link_id = 0, $link_categories = array() ) {
// If $link_categories isn't already an array, make it one:
if ( !is_array( $link_categories ) || 0 == count( $link_categories ) )
$link_categories = array( get_option( 'default_link_category' ) );
$link_categories = array_map( 'intval', $link_categories );
$link_categories = array_unique( $link_categories );
wp_set_object_terms( $link_id, $link_categories, 'link_category' );
clean_bookmark_cache( $link_id );
}
/**
* Updates a link in the database.
*
* @since 2.0.0
*
* @param array $linkdata Link data to update.
* @return int|WP_Error Value 0 or WP_Error on failure. The updated link ID on success.
*/
function wp_update_link( $linkdata ) {
$link_id = (int) $linkdata['link_id'];
$link = get_bookmark( $link_id, ARRAY_A );
// Escape data pulled from DB.
$link = wp_slash( $link );
// Passed link category list overwrites existing category list if not empty.
if ( isset( $linkdata['link_category'] ) && is_array( $linkdata['link_category'] )
&& 0 != count( $linkdata['link_category'] ) )
$link_cats = $linkdata['link_category'];
else
$link_cats = $link['link_category'];
// Merge old and new fields with new fields overwriting old ones.
$linkdata = array_merge( $link, $linkdata );
$linkdata['link_category'] = $link_cats;
return wp_insert_link( $linkdata );
}
/**
* Outputs the 'disabled' message for the WordPress Link Manager.
*
* @since 3.5.0
* @access private
*
* @global string $pagenow
*/
function wp_link_manager_disabled_message() {
global $pagenow;
if ( 'link-manager.php' != $pagenow && 'link-add.php' != $pagenow && 'link.php' != $pagenow )
return;
add_filter( 'pre_option_link_manager_enabled', '__return_true', 100 );
$really_can_manage_links = current_user_can( 'manage_links' );
remove_filter( 'pre_option_link_manager_enabled', '__return_true', 100 );
if ( $really_can_manage_links && current_user_can( 'install_plugins' ) ) {
$link = network_admin_url( 'plugin-install.php?tab=search&amp;s=Link+Manager' );
wp_die( sprintf( __( 'If you are looking to use the link manager, please install the <a href="%s">Link Manager</a> plugin.' ), $link ) );
}
wp_die( __( 'Sorry, you are not allowed to edit the links for this site.' ) );
}