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v0.6

Merged v0.6
fix/phpcs into master
Merged Erick Hitter requested to merge fix/phpcs into master
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inc/class-eth-simple-shortlinks.php 0 → 100644
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<?php
/**
* Plugin functionality.
*
* @package ETH_Simple_Shortlinks
*/
/**
* Class ETH_Simple_Shortlinks.
*/
class ETH_Simple_Shortlinks {
/**
* PLUGIN SETUP
*/
/**
* Singleton
*
* @var self
*/
private static $instance;
/**
* Instantiate singleton
*/
public static function get_instance() {
if ( ! is_a( self::$instance, __CLASS__ ) ) {
self::$instance = new self();
}
return self::$instance;
}
/**
* Dummy magic method
*/
public function __clone() {
_doing_it_wrong( __FUNCTION__, esc_html__( 'Cheatin&#8217; uh?', 'eth_simple_shortlinks' ), '0.1' );
}
/**
* Dummy magic method
*/
public function __wakeup() {
_doing_it_wrong( __FUNCTION__, esc_html__( 'Cheatin&#8217; uh?', 'eth_simple_shortlinks' ), '0.1' );
}
/**
* Dummy magic method
*
* @param string $name Method name.
* @param array $args Method arguments.
* @return null
*/
public function __call( $name = '', $args = array() ) {
return null;
}
/**
* Plugin name.
*
* @var string
*/
private $name = 'ETH Simple Shortlinks';
/**
* Rewrite slug.
*
* @var string
*/
private $slug = 'p';
/**
* Rewrite rule.
*
* @var string
*/
private $rewrite_rule;
/**
* Rewrite rule match.
*
* @var string
*/
private $rewrite_match;
/**
* Query variable.
*
* @var string
*/
private $qv = 'eth-shortlink';
/**
* Is environment ready?
*
* @var bool
*/
private $plugin_supported = false;
/**
* Post types supported by the plugin.
*
* @var array
*/
private $supported_post_types = array();
/**
* Post statuses allowed to redirect to.
*
* @var array
*/
private $supported_post_statuses = array();
/**
* Register plugin's setup action.
*/
private function __construct() {
// Build rewrite parts using other class properties.
$this->rewrite_rule = '^' . $this->slug . '/([\d]+)/?$';
$this->rewrite_match = 'index.php?p=$matches[1]&' . $this->qv . '=1';
// Basic plugin actions.
add_action( 'plugins_loaded', array( $this, 'action_plugins_loaded' ) );
add_action( 'init', array( $this, 'action_init' ) );
}
/**
* Load plugin translations.
*/
public function action_plugins_loaded() {
load_plugin_textdomain(
'eth_simple_shortlinks',
false,
dirname( plugin_basename( __FILE__ ) ) . '/languages/'
);
}
/**
* Verify plugin is supported, then register its functionality.
*/
public function action_init() {
global $wp_rewrite;
// Plugin won't work if site doesn't use pretty permalinks.
if ( empty( $wp_rewrite->permalink_structure ) ) {
add_action( 'admin_notices', array( $this, 'action_add_admin_notices' ) );
return;
}
$this->plugin_supported = true;
// Admin notices.
add_action( 'admin_notices', array( $this, 'action_add_admin_notices' ) );
// Register rewrite rule.
add_rewrite_rule( $this->rewrite_rule, $this->rewrite_match, 'top' );
// Request handling.
add_action( 'wp_loaded', array( $this, 'filter_support' ) );
add_filter( 'query_vars', array( $this, 'filter_query_vars' ) );
add_action( 'parse_request', array( $this, 'action_parse_request' ) );
// Shortlink overrides.
add_filter( 'get_shortlink', array( $this, 'filter_get_shortlink' ), 10, 2 );
add_action( 'admin_head-edit.php', array( $this, 'add_admin_header_assets' ) );
add_filter( 'post_row_actions', array( $this, 'filter_row_actions' ), 10, 2 );
add_filter( 'page_row_actions', array( $this, 'filter_row_actions' ), 10, 2 );
}
/**
* Display admin notices if plugin's requirements aren't met.
*/
public function action_add_admin_notices() {
// Notices are only relevant if current user can get to the Permalinks and Plugins options screens.
if ( ! current_user_can( 'manage_options' ) || ! current_user_can( 'activate_plugins' ) ) {
return;
}
// Build notices.
$message = '';
if ( $this->plugin_supported ) {
// Check option for the plugin's rule.
// The `$wp_rewrite` global will include it in `extra_rules_top` even though it hasn't been saved to the DB, and therefore isn't really active.
$rewrites = get_option( 'rewrite_rules' );
if ( is_array( $rewrites ) && ! array_key_exists( $this->rewrite_rule, $rewrites ) ) {
$message = sprintf(
/* translators: 1: URL of permalink options page. */
__(
'Please visit the <a href="%1$s">Permalinks</a> settings page to refresh your permalinks. Doing so will add the rules this plugin requires.',
'eth_simple_shortlinks'
),
admin_url( 'options-permalink.php' )
);
}
} else {
$message = sprintf(
/* translators: 1: URL of permalink options page. */
__(
'Please enable <a href="%1$s">pretty permalinks</a>, otherwise disable this plugin as it is not compatible with "Plain" permalinks.',
'eth_simple_shortlinks'
),
admin_url( 'options-permalink.php' )
);
}
// Display a notice if one exists.
if ( ! empty( $message ) ) {
$message = sprintf(
/* translators: 1: Plugin name, 2: Notice text. */
__(
'<strong>%1$s</strong>: %2$s',
'eth_simple_shortlinks'
),
$this->name,
$message
);
?>
<div class="error">
<p><?php echo wp_kses_post( $message ); ?></p>
</div>
<?php
}
}
/**
* PLUGIN FUNCTIONALITY
*/
/**
* Allow filtering of supported statuses and types.
*/
public function filter_support() {
/**
* Filters supported post statuses.
*
* @param array $statuses Supported statuses.
*/
$this->supported_post_statuses = apply_filters( 'eth_simple_shortlinks_allowed_post_statuses', array( 'publish', 'future' ) );
/**
* Filters supported post types.
*
* @param array $types Post types.
*/
$this->supported_post_types = apply_filters( 'eth_simple_shortlinks_allowed_post_types', array( 'post', 'page' ) );
}
/**
* Add custom query var to those permitted, so it can be detected at `parse_request`.
*
* @param array $qv Registered query vars.
* @return array
*/
public function filter_query_vars( $qv ) {
$qv[] = $this->qv;
return $qv;
}
/**
* Catch this plugin's requests and issue redirects, otherwise WP
* will serve content at duplicate URLs.
*
* Allows invalid post IDs fall through to WP's 404 handler, or
* anything else that might intercede.
*
* @param WP $request WP object.
*/
public function action_parse_request( $request ) {
$redirect = $this->get_redirect_for_request( $request );
if ( null === $redirect ) {
return;
}
/**
* URLs aren't validated in case plugins filter permalinks to point to external URLs.
*
* If validation is desired, hook into the `eth_simple_shortlinks_redirect_url` filter.
*/
// phpcs:ignore WordPress.Security.SafeRedirect.wp_redirect_wp_redirect
wp_redirect( $redirect->destination, $redirect->status_code );
exit;
}
/**
* Parse a given WP object for its redirect destination.
*
* @param WP $request WP object.
* @return \stdClass|null
*/
public function get_redirect_for_request( $request ) {
if ( ! isset( $request->query_vars[ $this->qv ], $request->query_vars['p'] ) ) {
return null;
}
$post_object = get_post( $request->query_vars['p'] );
if ( ! $post_object instanceof WP_Post ) {
return null;
}
/**
* Filters if post type and status should be validated.
*
* @since 0.6
*
* @param bool $validate Perform validation.
* @param WP_Post $post_object Post being redirected to.
* @param WP $request WP object.
*/
if (
apply_filters( 'eth_simple_shortlinks_verify_requested_post_support', true, $post_object, $request ) &&
(
! $this->is_supported_post_type( $post_object->post_type ) ||
! $this->is_supported_post_status( $post_object->post_status )
)
) {
return null;
}
/**
* Filters the redirect URL.
*
* @since 0.6
*
* @param string $destination Redirect destination.
* @param WP_Post $post_object Post being redirected to.
* @param WP $request WP object.
*/
$destination = apply_filters( 'eth_simple_shortlinks_redirect_url', get_permalink( $post_object ), $post_object, $request );
/**
* Filters the redirect status code.
*
* @since 0.6
*
* @param int $status_code Redirect status code.
* @param string $destination Redirect destination.
* @param WP_Post $post_object Post being redirected to.
* @param WP $request WP object.
*/
$status_code = (int) apply_filters( 'eth_simple_shortlinks_redirect_status', 301, $destination, $post_object, $request );
if ( empty( $destination ) || empty( $status_code ) ) {
return null;
}
return (object) compact( 'destination', 'status_code' );
}
/**
* Override shortlinks with this plugin's format.
*
* @param string $shortlink Short URL.
* @param int $id Post ID.
* @return string
*/
public function filter_get_shortlink( $shortlink, $id ) {
if ( empty( $id ) ) {
$_p = get_post();
if ( ! empty( $_p->ID ) ) {
$id = $_p->ID;
}
}
if ( empty( $id ) ) {
return $shortlink;
}
if ( ! $this->is_supported_post_status( get_post_status( $id ) ) ) {
return $shortlink;
}
if ( ! $this->is_supported_post_type( get_post_type( $id ) ) ) {
return $shortlink;
}
return $this->get_shortlink( $id );
}
/**
* Header assets for shortlink in row actions.
*/
public function add_admin_header_assets() {
global $typenow;
if ( ! $this->is_supported_post_type( $typenow ) ) {
return;
}
?>
<script type="text/javascript">
jQuery( document ) .ready( function( $ ) {
$( '.row-actions .shortlink a' ).click( function( e ) {
e.preventDefault();
prompt( 'URL:', $( this ).attr('href') );
} );
} );
</script>
<?php
}
/**
* Provide the shortlink in row actions for easy access.
*
* @param array $actions Row actions.
* @param WP_Post $post Post object.
* @return array
*/
public function filter_row_actions( $actions, $post ) {
if ( ! $this->is_supported_post_type( get_post_type( $post ) ) || ! $this->is_supported_post_status( get_post_status( $post ) ) ) {
return $actions;
}
$actions['shortlink'] = '<a href="' . esc_js( $this->get_shortlink( $post->ID ) ) . '">' . __( 'Shortlink', 'eth_simple_shortlinks' ) . '</a>';
return $actions;
}
/**
* Check if given post type is supported.
*
* @param string $type Post type.
* @return bool
*/
private function is_supported_post_type( $type ) {
return in_array( $type, $this->supported_post_types, true );
}
/**
* Check if given post status is supported.
*
* @param string $status Post status.
* @return bool
*/
private function is_supported_post_status( $status ) {
return in_array( $status, $this->supported_post_statuses, true );
}
/**
* Utility method for building permalink.
*
* @param int $post_id Post ID.
* @return string
*/
public function get_shortlink( $post_id ) {
// Use Core's default when this plugin can't build a link.
if ( ! $this->plugin_supported ) {
return wp_get_shortlink( $post_id );
}
return user_trailingslashit( home_url( sprintf( '%s/%d', $this->slug, $post_id ) ) );
}
}
/**
* One instance to rule them all
*/
ETH_Simple_Shortlinks::get_instance();
/**
* Shortcut for using the shortlink outside of this plugin's considerations.
*
* @param int $post_id Post ID.
* @return string
*/
function eth_simple_shortlinks_get( $post_id ) {
if ( ! did_action( 'wp_loaded' ) ) {
_doing_it_wrong(
__FUNCTION__,
wp_kses_post(
__(
'Shortlinks cannot be generated until after <code>wp_loaded</code>; this ensures that all post types are registered.',
'eth_simple_shortlinks'
)
),
'0.3'
);
return false;
}
return ETH_Simple_Shortlinks::get_instance()->get_shortlink( $post_id );
}