Sync plugins from current page

Signed-off-by: Adrian Nöthlich <git@promasu.tech>

wp-content/plugins/redirection/README.md

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+# Redirection
+
+[![Build Status](https://travis-ci.org/johngodley/redirection.svg?branch=master)](https://travis-ci.org/johngodley/redirection)
+
+Redirection is a WordPress plugin to manage 301 redirections, keep track of 404 errors, and generally tidy up any loose ends your site may have. This is particularly useful if you are migrating pages from an old website, or are changing the directory of your WordPress installation.
+
+Note: this is the current 'trunk' version of Redirection. It may be newer than what is in the WordPress.org plugin repository, and should be considered experimental.
+
+## Installation
+Redirection can be installed by visiting the WordPress.org plugin page:
+
+https://wordpress.org/plugins/redirection/
+
+## Customisation
+
+### Request Information
+
+The following WordPress filters are available for customisation of a server requests:
+
+- `redirection_request_url` - The request URL
+- `redirection_request_agent` - The request user agent
+- `redirection_request_referrer` - The request referrer
+- `redirection_request_ip` - The request IP address
+
+### Logging
+
+The following WordPress filters are available for customisation of logged data:
+
+- `redirection_404_data` - Data to be inserted into the 404 table
+- `redirection_log_data` - Data to be inserted into the redirect log table
+
+### Redirect source and target
+
+- `redirection_url_source` - The original URL used before matching a request. Return false to stop any redirection
+- `redirection_url_target` - The target URL after a request has been matched (and after any regular expression captures have been replaced). Return false to stop any redirection
+
+### Dynamic URL data
+
+The following special words can be inserted into a target URL:
+
+- `%userid%` - Insert user's ID
+- `%userlogin%` - Insert user's login name
+- `%userurl%` - Insert user's custom URL
+
+### Management
+
+- `redirection_permalink_changed` - return boolean if a post's permalink has changed
+- `redirection_remove_existing` - fired when a post changes permalink and we need to clear existing redirects that might affect it
+
+Additionally, if the target URL is a number without any slashes then Redirection will treat it as a post ID and redirect to the full URL for that post.
+
+## Support
+
+Please raise any bug reports or enhancement requests here. Pull requests are always welcome.
+
+You can find a more detailed description of the plugin on the [Redirection home page](http://urbangiraffe.com/plugins/redirection/)
+
+Translations can be added here:
+
+https://translate.wordpress.org/projects/wp-plugins/redirection

wp-content/plugins/redirection/actions/error.php

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+<?php
+
+class Error_Action extends Red_Action {
+	function process_before( $code, $target ) {
+		$this->code = $code;
+
+		wp_reset_query();
+		set_query_var( 'is_404', true );
+
+		add_filter( 'template_include', [ $this, 'template_include' ] );
+		add_filter( 'pre_handle_404', [ $this, 'pre_handle_404' ] );
+		add_action( 'wp', [ $this, 'wp' ] );
+
+		return true;
+	}
+
+	public function wp() {
+		status_header( $this->code );
+		nocache_headers();
+
+		global $wp_version;
+
+		if ( version_compare( $wp_version, '5.1', '<' ) ) {
+			header( 'X-Redirect-Agent: redirection' );
+		}
+	}
+
+	public function pre_handle_404() {
+		global $wp_query;
+
+		// Page comments plugin interferes with this
+		$wp_query->posts = [];
+		return false;
+	}
+
+	public function template_include() {
+		return get_404_template();
+	}
+
+	public function needs_target() {
+		return false;
+	}
+}

wp-content/plugins/redirection/actions/nothing.php

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+<?php
+
+class Nothing_Action extends Red_Action {
+	public function process_before( $code, $target ) {
+		return apply_filters( 'redirection_do_nothing', false, $target );
+	}
+
+	public function needs_target() {
+		return false;
+	}
+}

wp-content/plugins/redirection/actions/pass.php

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+<?php
+
+class Pass_Action extends Red_Action {
+	public function process_external( $url ) {
+		echo @wp_remote_fopen( $url );
+	}
+
+	/**
+	 * This is deprecated and will be removed in a future version
+	 */
+	public function process_file( $url ) {
+		$parts = explode( '?', substr( $url, 7 ) );
+
+		if ( count( $parts ) > 1 ) {
+			// Put parameters into the environment
+			$args = explode( '&', $parts[1] );
+
+			if ( count( $args ) > 0 ) {
+				foreach ( $args as $arg ) {
+					$tmp = explode( '=', $arg );
+
+					if ( count( $tmp ) === 1 ) {
+						$_GET[ $arg ] = '';
+					} else {
+						$_GET[ $tmp[0] ] = $tmp[1];
+					}
+				}
+			}
+		}
+
+		@include $parts[0];
+	}
+
+	public function process_internal( $target ) {
+		// Another URL on the server
+		$_SERVER['REQUEST_URI'] = $target;
+
+		if ( strpos( $target, '?' ) ) {
+			$_SERVER['QUERY_STRING'] = substr( $target, strpos( $target, '?' ) + 1 );
+			parse_str( $_SERVER['QUERY_STRING'], $_GET );
+		}
+
+		return true;
+	}
+
+	public function is_external( $target ) {
+		return substr( $target, 0, 7 ) === 'http://' || substr( $target, 0, 8 ) === 'https://';
+	}
+
+	public function process_before( $code, $target ) {
+		// External target
+		if ( $this->is_external( $target ) ) {
+			$this->process_external( $target );
+			exit();
+		}
+
+		return $this->process_internal( $target );
+	}
+
+	public function needs_target() {
+		return true;
+	}
+}

wp-content/plugins/redirection/actions/random.php

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+<?php
+
+include_once dirname( __FILE__ ) . '/url.php';
+
+class Random_Action extends Url_Action {
+	public function process_before( $code, $target ) {
+		// Pick a random WordPress page
+		global $wpdb;
+
+		$id = $wpdb->get_var( "SELECT ID FROM {$wpdb->prefix}posts WHERE post_status='publish' AND post_password='' AND post_type='post' ORDER BY RAND() LIMIT 0,1" );
+		return str_replace( get_bloginfo( 'url' ), '', get_permalink( $id ) );
+	}
+
+	public function process_after( $code, $target ) {
+		$this->redirect_to( $code, $target );
+	}
+
+	public function needs_target() {
+		return true;
+	}
+}

wp-content/plugins/redirection/actions/url.php

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+<?php
+
+class Url_Action extends Red_Action {
+	protected function redirect_to( $code, $target ) {
+		add_filter( 'x_redirect_by', [ $this, 'x_redirect_by' ] );
+
+		$redirect = wp_redirect( $target, $code );
+
+		if ( $redirect ) {
+			global $wp_version;
+
+			if ( version_compare( $wp_version, '5.1', '<' ) ) {
+				header( 'X-Redirect-Agent: redirection' );
+			}
+
+			die();
+		}
+	}
+
+	public function process_after( $code, $target ) {
+		$this->redirect_to( $code, $target );
+	}
+
+	public function needs_target() {
+		return true;
+	}
+
+	public function x_redirect_by() {
+		return 'redirection';
+	}
+}

wp-content/plugins/redirection/api/api-404.php

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+<?php
+
+/**
+ * @api {get} /redirection/v1/404 Get 404 logs
+ * @apiDescription Get 404 logs
+ * @apiGroup 404
+ *
+ * @apiParam {string} groupBy Group by 'ip' or 'url'
+ * @apiParam {string} orderby
+ * @apiParam {string} direction
+ * @apiParam {string} filter
+ * @apiParam {string} per_page
+ * @apiParam {string} page
+ */
+
+/**
+ * @api {post} /redirection/v1/404 Delete 404 logs
+ * @apiDescription Delete 404 logs either by ID or filter or group
+ * @apiGroup 404
+ *
+ * @apiParam {string} items Array of log IDs
+ * @apiParam {string} filter
+ * @apiParam {string} filterBy
+ * @apiParam {string} groupBy Group by 'ip' or 'url'
+ */
+
+/**
+ * @api {post} /redirection/v1/bulk/404/delete Bulk actions on 404s
+ * @apiDescription Delete 404 logs either by ID
+ * @apiGroup 404
+ */
+class Redirection_Api_404 extends Redirection_Api_Filter_Route {
+	public function __construct( $namespace ) {
+		$filters = array( 'ip', 'url', 'url-exact', 'total' );
+
+		register_rest_route( $namespace, '/404', array(
+			'args' => $this->get_filter_args( $filters, $filters ),
+			$this->get_route( WP_REST_Server::READABLE, 'route_404' ),
+			$this->get_route( WP_REST_Server::EDITABLE, 'route_delete_all' ),
+		) );
+
+		$this->register_bulk( $namespace, '/bulk/404/(?P<bulk>delete)', $filters, $filters, 'route_bulk' );
+	}
+
+	public function route_404( WP_REST_Request $request ) {
+		return $this->get_404( $request->get_params() );
+	}
+
+	public function route_bulk( WP_REST_Request $request ) {
+		$params = $request->get_params();
+		$items = explode( ',', $request['items'] );
+
+		if ( is_array( $items ) ) {
+			foreach ( $items as $item ) {
+				if ( is_numeric( $item ) ) {
+					RE_404::delete( intval( $item, 10 ) );
+				} else {
+					RE_404::delete_all( $this->get_delete_group( $params ), $item );
+				}
+			}
+
+			return $this->route_404( $request );
+		}
+
+		return $this->add_error_details( new WP_Error( 'redirect', 'Invalid array of items' ), __LINE__ );
+	}
+
+	private function get_delete_group( array $params ) {
+		if ( isset( $params['groupBy'] ) && $params['groupBy'] === 'ip' ) {
+			return 'ip';
+		}
+
+		return 'url-exact';
+	}
+
+	public function route_delete_all( WP_REST_Request $request ) {
+		$params = $request->get_params();
+		$filter = false;
+		$filter_by = false;
+
+		if ( isset( $params['items'] ) && is_array( $params['items'] ) ) {
+			foreach ( $params['items'] as $url ) {
+				RE_404::delete_all( $this->get_delete_group( $params ), $url );
+			}
+		} else {
+			if ( isset( $params['filter'] ) ) {
+				$filter = $params['filter'];
+			}
+
+			if ( isset( $params['filterBy'] ) ) {
+				$filter_by = $params['filterBy'];
+			}
+
+			RE_404::delete_all( $filter_by, $filter );
+
+			unset( $params['filterBy'] );
+			unset( $params['filter'] );
+		}
+
+		unset( $params['page'] );
+
+		return $this->get_404( $params );
+	}
+
+	private function get_404( array $params ) {
+		if ( isset( $params['groupBy'] ) && in_array( $params['groupBy'], array( 'ip', 'url' ), true ) ) {
+			return RE_Filter_Log::get_grouped( 'redirection_404', $params['groupBy'], $params );
+		}
+
+		return RE_Filter_Log::get( 'redirection_404', 'RE_404', $params );
+	}
+}

wp-content/plugins/redirection/api/api-export.php

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+<?php
+
+/**
+ * @api {get} /redirection/v1/export/:module/:format Export redirects for a module in a format
+ * @apiDescription Export redirects for a module in a format
+ * @apiGroup Export
+ *
+ * @apiParam {String} module The module to export - 1, 2, 3, or 'all'
+ * @apiParam {String} format The format of the export. Either 'csv', 'apache', 'nginx', or 'json'
+ *
+ * @apiSuccess {Array} ip Array of export data
+ * @apiSuccess {Integer} total Number of items exported
+ *
+ * @apiUse 400Error
+ */
+class Redirection_Api_Export extends Redirection_Api_Route {
+	public function __construct( $namespace ) {
+		register_rest_route( $namespace, '/export/(?P<module>1|2|3|all)/(?P<format>csv|apache|nginx|json)', array(
+			$this->get_route( WP_REST_Server::READABLE, 'route_export' ),
+		) );
+	}
+
+	public function route_export( WP_REST_Request $request ) {
+		$module = $request['module'];
+		$format = 'json';
+
+		if ( in_array( $request['format'], array( 'csv', 'apache', 'nginx', 'json' ) ) ) {
+			$format = $request['format'];
+		}
+
+		$export = Red_FileIO::export( $module, $format );
+		if ( $export === false ) {
+			return $this->add_error_details( new WP_Error( 'redirect', 'Invalid module' ), __LINE__ );
+		}
+
+		return array(
+			'data' => $export['data'],
+			'total' => $export['total'],
+		);
+	}
+}

wp-content/plugins/redirection/api/api-group.php

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+<?php
+
+/**
+ * @api {get} /redirection/v1/group Get list of groups
+ * @apiDescription Get list of groups
+ * @apiGroup Group
+ *
+ * @apiParam {string} orderby
+ * @apiParam {string} direction
+ * @apiParam {string} filter
+ * @apiParam {string} per_page
+ * @apiParam {string} page
+ *
+ * @apiSuccess {Array} ip Array of groups
+ * @apiSuccess {Integer} total Number of items
+ *
+ * @apiUse 400Error
+ */
+class Redirection_Api_Group extends Redirection_Api_Filter_Route {
+	public function __construct( $namespace ) {
+		$filters = array( 'name', 'module' );
+		$orders = array( 'name', 'id' );
+
+		register_rest_route( $namespace, '/group', array(
+			'args' => $this->get_filter_args( $filters, $orders ),
+			$this->get_route( WP_REST_Server::READABLE, 'route_list' ),
+			array_merge(
+				$this->get_route( WP_REST_Server::EDITABLE, 'route_create' ),
+				array( 'args' => $this->get_group_args() )
+			),
+		) );
+
+		register_rest_route( $namespace, '/group/(?P<id>[\d]+)', array(
+			'args' => $this->get_group_args(),
+			$this->get_route( WP_REST_Server::EDITABLE, 'route_update' ),
+		) );
+
+		$this->register_bulk( $namespace, '/bulk/group/(?P<bulk>delete|enable|disable)', $filters, $orders, 'route_bulk' );
+	}
+
+	private function get_group_args() {
+		return array(
+			'moduleId' => array(
+				'description' => 'Module ID',
+				'type' => 'integer',
+				'minimum' => 0,
+				'maximum' => 3,
+				'required' => true,
+			),
+			'name' => array(
+				'description' => 'Group name',
+				'type' => 'string',
+				'required' => true,
+			),
+		);
+	}
+
+	public function route_list( WP_REST_Request $request ) {
+		return Red_Group::get_filtered( $request->get_params() );
+	}
+
+	public function route_create( WP_REST_Request $request ) {
+		$params = $request->get_params( $request );
+		$group = Red_Group::create( isset( $params['name'] ) ? $params['name'] : '', isset( $params['moduleId'] ) ? $params['moduleId'] : 0 );
+
+		if ( $group ) {
+			return Red_Group::get_filtered( $params );
+		}
+
+		return $this->add_error_details( new WP_Error( 'redirect', 'Invalid group or parameters' ), __LINE__ );
+	}
+
+	public function route_update( WP_REST_Request $request ) {
+		$params = $request->get_params( $request );
+		$group = Red_Group::get( intval( $request['id'], 10 ) );
+
+		if ( $group ) {
+			$result = $group->update( $params );
+
+			if ( $result ) {
+				return array( 'item' => $group->to_json() );
+			}
+		}
+
+		return $this->add_error_details( new WP_Error( 'redirect', 'Invalid group details' ), __LINE__ );
+	}
+
+	public function route_bulk( WP_REST_Request $request ) {
+		$action = $request['bulk'];
+		$items = explode( ',', $request['items'] );
+
+		if ( is_array( $items ) ) {
+			foreach ( $items as $item ) {
+				$group = Red_Group::get( intval( $item, 10 ) );
+
+				if ( $group ) {
+					if ( $action === 'delete' ) {
+						$group->delete();
+					} elseif ( $action === 'disable' ) {
+						$group->disable();
+					} elseif ( $action === 'enable' ) {
+						$group->enable();
+					}
+				}
+			}
+
+			return $this->route_list( $request );
+		}
+
+		return $this->add_error_details( new WP_Error( 'redirect', 'Invalid array of items' ), __LINE__ );
+	}
+}

wp-content/plugins/redirection/api/api-import.php

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+<?php
+
+class Redirection_Api_Import extends Redirection_Api_Route {
+	public function __construct( $namespace ) {
+		register_rest_route( $namespace, '/import/file/(?P<group_id>\d+)', array(
+			$this->get_route( WP_REST_Server::EDITABLE, 'route_import_file' ),
+		) );
+
+		register_rest_route( $namespace, '/import/plugin', array(
+			$this->get_route( WP_REST_Server::READABLE, 'route_plugin_import_list' ),
+		) );
+
+		register_rest_route( $namespace, '/import/plugin/(?P<plugin>.*?)', array(
+			$this->get_route( WP_REST_Server::EDITABLE, 'route_plugin_import' ),
+		) );
+	}
+
+	public function route_plugin_import_list( WP_REST_Request $request ) {
+		include_once dirname( dirname( __FILE__ ) ) . '/models/importer.php';
+
+		return array( 'importers' => Red_Plugin_Importer::get_plugins() );
+	}
+
+	public function route_plugin_import( WP_REST_Request $request ) {
+		include_once dirname( dirname( __FILE__ ) ) . '/models/importer.php';
+
+		$groups = Red_Group::get_all();
+
+		return array( 'imported' => Red_Plugin_Importer::import( $request['plugin'], $groups[0]['id'] ) );
+	}
+
+	public function route_import_file( WP_REST_Request $request ) {
+		$upload = $request->get_file_params();
+		$upload = isset( $upload['file'] ) ? $upload['file'] : false;
+		$group_id = $request['group_id'];
+
+		if ( $upload && is_uploaded_file( $upload['tmp_name'] ) ) {
+			$count = Red_FileIO::import( $group_id, $upload );
+
+			if ( $count !== false ) {
+				return array(
+					'imported' => $count,
+				);
+			}
+
+			return $this->add_error_details( new WP_Error( 'redirect', 'Invalid group' ), __LINE__ );
+		}
+
+		return $this->add_error_details( new WP_Error( 'redirect', 'Invalid file' ), __LINE__ );
+	}
+
+}

wp-content/plugins/redirection/api/api-log.php

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+<?php
+/**
+ * @api {get} /redirection/v1/log Get log logs
+ * @apiDescription Get log logs
+ * @apiGroup Log
+ *
+ * @apiParam {string} groupBy Group by 'ip' or 'url'
+ * @apiParam {string} orderby
+ * @apiParam {string} direction
+ * @apiParam {string} filter
+ * @apiParam {string} per_page
+ * @apiParam {string} page
+ */
+
+/**
+ * @api {post} /redirection/v1/log Delete log logs
+ * @apiDescription Delete log logs either by ID or filter or group
+ * @apiGroup Log
+ *
+ * @apiParam {string} items Array of log IDs
+ * @apiParam {string} filter
+ * @apiParam {string} filterBy
+ * @apiParam {string} groupBy Group by 'ip' or 'url'
+ */
+
+/**
+ * @api {post} /redirection/v1/bulk/log/delete Bulk actions on logs
+ * @apiDescription Delete log logs either by ID
+ * @apiGroup Log
+ */
+class Redirection_Api_Log extends Redirection_Api_Filter_Route {
+	public function __construct( $namespace ) {
+		$filters = array( 'url', 'ip', 'url-exact' );
+		$orders = array( 'url', 'ip' );
+
+		register_rest_route( $namespace, '/log', array(
+			'args' => $this->get_filter_args( $filters, $orders ),
+			$this->get_route( WP_REST_Server::READABLE, 'route_log' ),
+			$this->get_route( WP_REST_Server::EDITABLE, 'route_delete_all' ),
+		) );
+
+		$this->register_bulk( $namespace, '/bulk/log/(?P<bulk>delete)', $filters, $filters, 'route_bulk' );
+	}
+
+	public function route_log( WP_REST_Request $request ) {
+		return $this->get_logs( $request->get_params() );
+	}
+
+	public function route_bulk( WP_REST_Request $request ) {
+		$items = explode( ',', $request['items'] );
+
+		if ( is_array( $items ) ) {
+			$items = array_map( 'intval', $items );
+			array_map( array( 'RE_Log', 'delete' ), $items );
+			return $this->route_log( $request );
+		}
+
+		return $this->add_error_details( new WP_Error( 'redirect', 'Invalid array of items' ), __LINE__ );
+	}
+
+	public function route_delete_all( WP_REST_Request $request ) {
+		$params = $request->get_params();
+		$filter = false;
+		$filter_by = false;
+
+		if ( isset( $params['filter'] ) ) {
+			$filter = $params['filter'];
+		}
+
+		if ( isset( $params['filterBy'] ) && in_array( $params['filterBy'], array( 'url', 'ip', 'url-exact' ), true ) ) {
+			$filter_by = $params['filterBy'];
+		}
+
+		RE_Log::delete_all( $filter_by, $filter );
+		return $this->route_log( $request );
+	}
+
+	private function get_logs( array $params ) {
+		return RE_Filter_Log::get( 'redirection_logs', 'RE_Log', $params );
+	}
+}

wp-content/plugins/redirection/api/api-plugin.php

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+<?php
+
+/**
+ * 'Plugin' functions for Redirection
+ */
+class Redirection_Api_Plugin extends Redirection_Api_Route {
+	public function __construct( $namespace ) {
+		register_rest_route( $namespace, '/plugin', array(
+			$this->get_route( WP_REST_Server::READABLE, 'route_status' ),
+		) );
+
+		register_rest_route( $namespace, '/plugin', array(
+			$this->get_route( WP_REST_Server::EDITABLE, 'route_fixit' ),
+			'args' => [
+				'name' => array(
+					'description' => 'Name',
+					'type' => 'string',
+				),
+				'value' => array(
+					'description' => 'Value',
+					'type' => 'string',
+				),
+			],
+		) );
+
+		register_rest_route( $namespace, '/plugin/delete', array(
+			$this->get_route( WP_REST_Server::EDITABLE, 'route_delete' ),
+		) );
+
+		register_rest_route( $namespace, '/plugin/test', array(
+			$this->get_route( WP_REST_Server::ALLMETHODS, 'route_test' ),
+		) );
+
+		register_rest_route( $namespace, '/plugin/post', array(
+			$this->get_route( WP_REST_Server::READABLE, 'route_match_post' ),
+			'args' => [
+				'text' => [
+					'description' => 'Text to match',
+					'type' => 'string',
+				],
+			],
+		) );
+
+		register_rest_route( $namespace, '/plugin/database', array(
+			$this->get_route( WP_REST_Server::EDITABLE, 'route_database' ),
+			'args' => array(
+				'description' => 'Upgrade parameter',
+				'type' => 'enum',
+				'enum' => array(
+					'stop',
+					'skip',
+				),
+			),
+		) );
+	}
+
+	public function route_match_post( WP_REST_Request $request ) {
+		$params = $request->get_params();
+		$search = isset( $params['text'] ) ? $params['text'] : false;
+		$results = [];
+
+		if ( $search ) {
+			global $wpdb;
+
+			$posts = $wpdb->get_results(
+				$wpdb->prepare(
+					"SELECT ID,post_title,post_name FROM $wpdb->posts WHERE post_status='publish' AND (post_title LIKE %s OR post_name LIKE %s) " .
+					"AND post_type NOT IN ('nav_menu_item','wp_block','oembed_cache')",
+					'%' . $wpdb->esc_like( $search ) . '%', '%' . $wpdb->esc_like( $search ) . '%'
+				)
+			);
+
+			foreach ( (array) $posts as $post ) {
+				$results[] = [
+					'title' => $post->post_title,
+					'slug' => $post->post_name,
+					'url' => get_permalink( $post->ID ),
+				];
+			}
+		}
+
+		return $results;
+	}
+
+	public function route_status( WP_REST_Request $request ) {
+		include_once dirname( REDIRECTION_FILE ) . '/models/fixer.php';
+
+		$fixer = new Red_Fixer();
+		return $fixer->get_json();
+	}
+
+	public function route_fixit( WP_REST_Request $request ) {
+		include_once dirname( REDIRECTION_FILE ) . '/models/fixer.php';
+
+		$params = $request->get_params();
+		$fixer = new Red_Fixer();
+
+		if ( isset( $params['name'] ) && isset( $params['value'] ) ) {
+			global $wpdb;
+
+			$fixer->save_debug( $params['name'], $params['value'] );
+
+			$groups = intval( $wpdb->get_var( "SELECT COUNT(*) FROM {$wpdb->prefix}redirection_groups" ), 10 );
+			if ( $groups === 0 ) {
+				Red_Group::create( 'new group', 1 );
+			}
+		} else {
+			$fixer->fix( $fixer->get_status() );
+		}
+
+		return $fixer->get_json();
+	}
+
+	public function route_delete() {
+		if ( is_multisite() ) {
+			return $this->getError( 'Multisite installations must delete the plugin from the network admin', __LINE__ );
+		}
+
+		$plugin = Redirection_Admin::init();
+		$plugin->plugin_uninstall();
+
+		$current = get_option( 'active_plugins' );
+		array_splice( $current, array_search( basename( dirname( REDIRECTION_FILE ) ) . '/' . basename( REDIRECTION_FILE ), $current ), 1 );
+		update_option( 'active_plugins', $current );
+
+		return array( 'location' => admin_url() . 'plugins.php' );
+	}
+
+	public function route_test( WP_REST_Request $request ) {
+		return array(
+			'success' => true,
+		);
+	}
+
+	public function route_database( WP_REST_Request $request ) {
+		$params = $request->get_params();
+		$status = new Red_Database_Status();
+		$upgrade = false;
+
+		if ( isset( $params['upgrade'] ) && in_array( $params['upgrade'], [ 'stop', 'skip' ], true ) ) {
+			$upgrade = $params['upgrade'];
+		}
+
+		// Check upgrade
+		if ( ! $status->needs_updating() && ! $status->needs_installing() ) {
+			/* translators: version number */
+			$status->set_error( sprintf( __( 'Your database does not need updating to %s.', 'redirection' ), REDIRECTION_DB_VERSION ) );
+
+			return $status->get_json();
+		}
+
+		if ( $upgrade === 'stop' ) {
+			$status->stop_update();
+		} elseif ( $upgrade === 'skip' ) {
+			$status->set_next_stage();
+		}
+
+		if ( $upgrade === false || $status->get_current_stage() ) {
+			$database = new Red_Database();
+			$database->apply_upgrade( $status );
+		}
+
+		return $status->get_json();
+	}
+}

wp-content/plugins/redirection/api/api-redirect.php

@@ -0,0 +1,109 @@
+<?php
+
+/**
+ * @api {get} /redirection/v1/redirect Get list of redirects
+ * @apiDescription Get list of redirects
+ * @apiGroup Redirect
+ *
+ * @apiParam {string} orderby
+ * @apiParam {string} direction
+ * @apiParam {string} filter
+ * @apiParam {string} per_page
+ * @apiParam {string} page
+ *
+ * @apiSuccess {Array} ip Array of redirects
+ * @apiSuccess {Integer} total Number of items
+ *
+ * @apiUse 400Error
+ */
+
+class Redirection_Api_Redirect extends Redirection_Api_Filter_Route {
+	public function __construct( $namespace ) {
+		$filters = array( 'url', 'group' );
+		$orders = array( 'url', 'last_count', 'last_access', 'position', 'id' );
+
+		register_rest_route( $namespace, '/redirect', array(
+			'args' => $this->get_filter_args( $filters, $orders ),
+			$this->get_route( WP_REST_Server::READABLE, 'route_list' ),
+			$this->get_route( WP_REST_Server::EDITABLE, 'route_create' ),
+		) );
+
+		register_rest_route( $namespace, '/redirect/(?P<id>[\d]+)', array(
+			$this->get_route( WP_REST_Server::EDITABLE, 'route_update' ),
+		) );
+
+		$this->register_bulk( $namespace, '/bulk/redirect/(?P<bulk>delete|enable|disable|reset)', $filters, $orders, 'route_bulk' );
+	}
+
+	public function route_list( WP_REST_Request $request ) {
+		return Red_Item::get_filtered( $request->get_params() );
+	}
+
+	public function route_create( WP_REST_Request $request ) {
+		$params = $request->get_params();
+		$urls = array();
+
+		if ( isset( $params['url'] ) ) {
+			$urls = array( $params['url'] );
+
+			if ( is_array( $params['url'] ) ) {
+				$urls = $params['url'];
+			}
+
+			foreach ( $urls as $url ) {
+				$params['url'] = $url;
+				$redirect = Red_Item::create( $params );
+
+				if ( is_wp_error( $redirect ) ) {
+					return $this->add_error_details( $redirect, __LINE__ );
+				}
+			}
+		}
+
+		return $this->route_list( $request );
+	}
+
+	public function route_update( WP_REST_Request $request ) {
+		$params = $request->get_params();
+		$redirect = Red_Item::get_by_id( intval( $params['id'], 10 ) );
+
+		if ( $redirect ) {
+			$result = $redirect->update( $params );
+
+			if ( is_wp_error( $result ) ) {
+				return $this->add_error_details( $result, __LINE__ );
+			}
+
+			return array( 'item' => $redirect->to_json() );
+		}
+
+		return $this->add_error_details( new WP_Error( 'redirect', 'Invalid redirect details' ), __LINE__ );
+	}
+
+	public function route_bulk( WP_REST_Request $request ) {
+		$action = $request['bulk'];
+		$items = explode( ',', $request['items'] );
+
+		if ( is_array( $items ) ) {
+			foreach ( $items as $item ) {
+				$redirect = Red_Item::get_by_id( intval( $item, 10 ) );
+
+				if ( $redirect ) {
+					if ( $action === 'delete' ) {
+						$redirect->delete();
+					} elseif ( $action === 'disable' ) {
+						$redirect->disable();
+					} elseif ( $action === 'enable' ) {
+						$redirect->enable();
+					} elseif ( $action === 'reset' ) {
+						$redirect->reset();
+					}
+				}
+			}
+
+			return $this->route_list( $request );
+		}
+
+		return $this->add_error_details( new WP_Error( 'redirect', 'Invalid array of items' ), __LINE__ );
+	}
+}

wp-content/plugins/redirection/api/api-settings.php

@@ -0,0 +1,63 @@
+<?php
+
+class Redirection_Api_Settings extends Redirection_Api_Route {
+	public function __construct( $namespace ) {
+		register_rest_route( $namespace, '/setting', array(
+			$this->get_route( WP_REST_Server::READABLE, 'route_settings' ),
+			$this->get_route( WP_REST_Server::EDITABLE, 'route_save_settings' ),
+		) );
+	}
+
+	public function route_settings( WP_REST_Request $request ) {
+		if ( ! function_exists( 'get_home_path' ) ) {
+			include_once ABSPATH . '/wp-admin/includes/file.php';
+		}
+
+		return [
+			'settings' => red_get_options(),
+			'groups' => $this->groups_to_json( Red_Group::get_for_select() ),
+			'installed' => get_home_path(),
+			'canDelete' => ! is_multisite(),
+			'post_types' => red_get_post_types(),
+		];
+	}
+
+	public function route_save_settings( WP_REST_Request $request ) {
+		$params = $request->get_params();
+		$result = true;
+
+		if ( isset( $params['location'] ) && strlen( $params['location'] ) > 0 ) {
+			$module = Red_Module::get( 2 );
+			$result = $module->can_save( $params['location'] );
+		}
+
+		red_set_options( $params );
+
+		$settings = $this->route_settings( $request );
+		if ( is_wp_error( $result ) ) {
+			$settings['warning'] = $result->get_error_message();
+		}
+
+		return $settings;
+	}
+
+	private function groups_to_json( $groups, $depth = 0 ) {
+		$items = array();
+
+		foreach ( $groups as $text => $value ) {
+			if ( is_array( $value ) && $depth === 0 ) {
+				$items[] = (object) array(
+					'text' => $text,
+					'value' => $this->groups_to_json( $value, 1 ),
+				);
+			} else {
+				$items[] = (object) array(
+					'text' => $value,
+					'value' => $text,
+				);
+			}
+		}
+
+		return $items;
+	}
+}

wp-content/plugins/redirection/database/database-status.php

@@ -0,0 +1,371 @@
+<?php
+
+class Red_Database_Status {
+	// Used in < 3.7 versions of Redirection, but since migrated to general settings
+	const OLD_DB_VERSION = 'redirection_version';
+	const DB_UPGRADE_STAGE = 'redirection_database_stage';
+
+	const RESULT_OK = 'ok';
+	const RESULT_ERROR = 'error';
+
+	const STATUS_OK = 'ok';
+	const STATUS_NEED_INSTALL = 'need-install';
+	const STATUS_NEED_UPDATING = 'need-update';
+	const STATUS_FINISHED_INSTALL = 'finish-install';
+	const STATUS_FINISHED_UPDATING = 'finish-update';
+
+	private $stage = false;
+	private $stages = [];
+
+	private $status = false;
+	private $result = false;
+	private $reason = false;
+	private $debug = [];
+
+	public function __construct() {
+		$this->status = self::STATUS_OK;
+
+		if ( $this->needs_installing() ) {
+			$this->status = self::STATUS_NEED_INSTALL;
+		} elseif ( $this->needs_updating() ) {
+			$this->status = self::STATUS_NEED_UPDATING;
+		}
+
+		$info = get_option( self::DB_UPGRADE_STAGE );
+		if ( $info ) {
+			$this->stage = isset( $info['stage'] ) ? $info['stage'] : false;
+			$this->stages = isset( $info['stages'] ) ? $info['stages'] : [];
+			$this->status = isset( $info['status'] ) ? $info['status'] : false;
+		}
+	}
+
+	/**
+	 * Does the database need install
+	 *
+	 * @return bool true if needs installing, false otherwise
+	 */
+	public function needs_installing() {
+		$settings = red_get_options();
+
+		if ( $settings['database'] === '' && $this->get_old_version() === false ) {
+			return true;
+		}
+
+		return false;
+	}
+
+	/**
+	 * Does the current database need updating to the target
+	 *
+	 * @return bool true if needs updating, false otherwise
+	 */
+	public function needs_updating() {
+		// We need updating if we don't need to install, and the current version is less than target version
+		if ( $this->needs_installing() === false && version_compare( $this->get_current_version(), REDIRECTION_DB_VERSION, '<' ) ) {
+			return true;
+		}
+
+		// Also if we're still in the process of upgrading
+		if ( $this->get_current_stage() ) {
+			return true;
+		}
+
+		return false;
+	}
+
+	/**
+	 * Get current database version
+	 *
+	 * @return string Current database version
+	 */
+	public function get_current_version() {
+		$settings = red_get_options();
+
+		if ( $settings['database'] !== '' ) {
+			return $settings['database'];
+		} elseif ( $this->get_old_version() !== false ) {
+			$version = $this->get_old_version();
+
+			// Upgrade the old value
+			red_set_options( array( 'database' => $version ) );
+			delete_option( self::OLD_DB_VERSION );
+			$this->clear_cache();
+			return $version;
+		}
+
+		return '';
+	}
+
+	private function get_old_version() {
+		return get_option( self::OLD_DB_VERSION );
+	}
+
+	public function check_tables_exist() {
+		$latest = Red_Database::get_latest_database();
+		$missing = $latest->get_missing_tables();
+
+		// No tables installed - do a fresh install
+		if ( count( $missing ) === count( $latest->get_all_tables() ) ) {
+			delete_option( Red_Database_Status::OLD_DB_VERSION );
+			red_set_options( [ 'database' => '' ] );
+			$this->clear_cache();
+
+			$this->status = self::STATUS_NEED_INSTALL;
+			$this->stop_update();
+		} elseif ( count( $missing ) > 0 && version_compare( $this->get_current_version(), '2.3.3', 'ge' ) ) {
+			// Some tables are missing - try and fill them in
+			$latest->install();
+		}
+	}
+
+	/**
+	 * Does the current database support a particular version
+	 *
+	 * @param string $version Target version
+	 * @return bool true if supported, false otherwise
+	 */
+	public function does_support( $version ) {
+		return version_compare( $this->get_current_version(), $version, 'ge' );
+	}
+
+	public function is_error() {
+		return $this->result === self::RESULT_ERROR;
+	}
+
+	public function set_error( $error ) {
+		global $wpdb;
+
+		$this->result = self::RESULT_ERROR;
+		$this->reason = str_replace( "\t", ' ', $error );
+
+		if ( $wpdb->last_error ) {
+			$this->debug[] = $wpdb->last_error;
+
+			if ( strpos( $wpdb->last_error, 'command denied to user' ) !== false ) {
+				$this->reason .= ' - ' . __( 'Insufficient database permissions detected. Please give your database user appropriate permissions.', 'redirection' );
+			}
+		}
+
+		$latest = Red_Database::get_latest_database();
+		$this->debug = array_merge( $this->debug, $latest->get_table_schema() );
+		$this->debug[] = 'Stage: ' . $this->get_current_stage();
+	}
+
+	public function set_ok( $reason ) {
+		$this->reason = $reason;
+		$this->result = self::RESULT_OK;
+		$this->debug = [];
+	}
+
+	/**
+	 * Stop current upgrade
+	 */
+	public function stop_update() {
+		$this->stage = false;
+		$this->stages = [];
+		$this->debug = [];
+
+		delete_option( self::DB_UPGRADE_STAGE );
+		$this->clear_cache();
+	}
+
+	public function finish() {
+		$this->stop_update();
+
+		if ( $this->status === self::STATUS_NEED_INSTALL ) {
+			$this->status = self::STATUS_FINISHED_INSTALL;
+		} elseif ( $this->status === self::STATUS_NEED_UPDATING ) {
+			$this->status = self::STATUS_FINISHED_UPDATING;
+		}
+	}
+
+	/**
+	 * Get current upgrade stage
+	 * @return string|bool Current stage name, or false if not upgrading
+	 */
+	public function get_current_stage() {
+		return $this->stage;
+	}
+
+	/**
+	 * Move current stage on to the next
+	 */
+	public function set_next_stage() {
+		$stage = $this->get_current_stage();
+
+		if ( $stage ) {
+			$stage = $this->get_next_stage( $stage );
+
+			// Save next position
+			if ( $stage ) {
+				$this->set_stage( $stage );
+			} else {
+				$this->finish();
+			}
+		}
+	}
+
+	/**
+	 * Get current upgrade status
+	 *
+	 * @return array Database status array
+	 */
+	public function get_json() {
+		// Base information
+		$result = [
+			'status' => $this->status,
+			'inProgress' => $this->stage !== false,
+		];
+
+		// Add on version status
+		if ( $this->status === self::STATUS_NEED_INSTALL || $this->status === self::STATUS_NEED_UPDATING ) {
+			$result = array_merge(
+				$result,
+				$this->get_version_upgrade(),
+				[ 'manual' => $this->get_manual_upgrade() ]
+			);
+		}
+
+		// Add on upgrade status
+		if ( $this->is_error() ) {
+			$result = array_merge( $result, $this->get_version_upgrade(), $this->get_progress_status(), $this->get_error_status() );
+		} elseif ( $result['inProgress'] ) {
+			$result = array_merge( $result, $this->get_progress_status() );
+		} elseif ( $this->status === self::STATUS_FINISHED_INSTALL || $this->status === self::STATUS_FINISHED_UPDATING ) {
+			$result['complete'] = 100;
+			$result['reason'] = $this->reason;
+		}
+
+		return $result;
+	}
+
+	private function get_error_status() {
+		return [
+			'reason' => $this->reason,
+			'result' => self::RESULT_ERROR,
+			'debug' => $this->debug,
+		];
+	}
+
+	private function get_progress_status() {
+		$complete = 0;
+
+		if ( $this->stage ) {
+			$complete = round( ( array_search( $this->stage, $this->stages, true ) / count( $this->stages ) ) * 100, 1 );
+		}
+
+		return [
+			'complete' => $complete,
+			'result' => self::RESULT_OK,
+			'reason' => $this->reason,
+		];
+	}
+
+	private function get_version_upgrade() {
+		return [
+			'current' => $this->get_current_version() ? $this->get_current_version() : '-',
+			'next' => REDIRECTION_DB_VERSION,
+			'time' => microtime( true ),
+		];
+	}
+
+	/**
+	 * Set the status information for a database upgrade
+	 */
+	public function start_install( array $upgrades ) {
+		$this->set_stages( $upgrades );
+		$this->status = self::STATUS_NEED_INSTALL;
+	}
+
+	public function start_upgrade( array $upgrades ) {
+		$this->set_stages( $upgrades );
+		$this->status = self::STATUS_NEED_UPDATING;
+	}
+
+	private function set_stages( array $upgrades ) {
+		$this->stages = [];
+
+		foreach ( $upgrades as $upgrade ) {
+			$upgrader = Red_Database_Upgrader::get( $upgrade );
+			$this->stages = array_merge( $this->stages, array_keys( $upgrader->get_stages() ) );
+		}
+
+		if ( count( $this->stages ) > 0 ) {
+			$this->set_stage( $this->stages[0] );
+		}
+	}
+
+	public function set_stage( $stage ) {
+		$this->stage = $stage;
+		$this->save_details();
+	}
+
+	private function save_details() {
+		update_option( self::DB_UPGRADE_STAGE, [
+			'stage' => $this->stage,
+			'stages' => $this->stages,
+			'status' => $this->status,
+		] );
+
+		$this->clear_cache();
+	}
+
+	private function get_manual_upgrade() {
+		$queries = [];
+		$database = new Red_Database();
+		$upgraders = $database->get_upgrades_for_version( $this->get_current_version(), false );
+
+		foreach ( $upgraders as $upgrade ) {
+			$upgrade = Red_Database_Upgrader::get( $upgrade );
+
+			$stages = $upgrade->get_stages();
+			foreach ( array_keys( $stages ) as $stage ) {
+				$queries = array_merge( $queries, $upgrade->get_queries_for_stage( $stage ) );
+			}
+		}
+
+		return $queries;
+	}
+
+	private function get_next_stage( $stage ) {
+		$database = new Red_Database();
+		$upgraders = $database->get_upgrades_for_version( $this->get_current_version(), $this->get_current_stage() );
+
+		if ( count( $upgraders ) === 0 ) {
+			$upgraders = $database->get_upgrades_for_version( $this->get_current_version(), false );
+		}
+
+		$upgrader = Red_Database_Upgrader::get( $upgraders[0] );
+
+		// Where are we in this?
+		$pos = array_search( $this->stage, $this->stages, true );
+
+		if ( $pos === count( $this->stages ) - 1 ) {
+			$this->save_db_version( REDIRECTION_DB_VERSION );
+			return false;
+		}
+
+		// Set current DB version
+		$current_stages = array_keys( $upgrader->get_stages() );
+
+		if ( array_search( $this->stage, $current_stages, true ) === count( $current_stages ) - 1 ) {
+			$this->save_db_version( $upgraders[1]['version'] );
+		}
+
+		// Move on to next in current version
+		return $this->stages[ $pos + 1 ];
+	}
+
+	public function save_db_version( $version ) {
+		red_set_options( array( 'database' => $version ) );
+		delete_option( self::OLD_DB_VERSION );
+
+		$this->clear_cache();
+	}
+
+	private function clear_cache() {
+		if ( file_exists( WP_CONTENT_DIR . '/object-cache.php' ) && function_exists( 'wp_cache_flush' ) ) {
+			wp_cache_flush();
+		}
+	}
+}

wp-content/plugins/redirection/database/database-upgrader.php

@@ -0,0 +1,124 @@
+<?php
+
+abstract class Red_Database_Upgrader {
+	private $queries = [];
+	private $live = true;
+
+	/**
+	 * Return an array of all the stages for an upgrade
+	 *
+	 * @return array stage name => reason
+	 */
+	abstract public function get_stages();
+
+	public function get_reason( $stage ) {
+		$stages = $this->get_stages();
+
+		if ( isset( $stages[ $stage ] ) ) {
+			return $stages[ $stage ];
+		}
+
+		return 'Unknown';
+	}
+
+	/**
+	 * Run a particular stage on the current upgrader
+	 *
+	 * @return Red_Database_Status
+	 */
+	public function perform_stage( Red_Database_Status $status ) {
+		global $wpdb;
+
+		$stage = $status->get_current_stage();
+		if ( $this->has_stage( $stage ) && method_exists( $this, $stage ) ) {
+			try {
+				$this->$stage( $wpdb );
+				$status->set_ok( $this->get_reason( $stage ) );
+			} catch ( Exception $e ) {
+				$status->set_error( $e->getMessage() );
+			}
+		} else {
+			$status->set_error( 'No stage found for upgrade ' . $stage );
+		}
+	}
+
+	public function get_queries_for_stage( $stage ) {
+		global $wpdb;
+
+		$this->queries = [];
+		$this->live = false;
+		$this->$stage( $wpdb );
+		$this->live = true;
+
+		return $this->queries;
+	}
+
+	/**
+	 * Returns the current database charset
+	 *
+	 * @return string Database charset
+	 */
+	public function get_charset() {
+		global $wpdb;
+
+		$charset_collate = '';
+		if ( ! empty( $wpdb->charset ) ) {
+			// Fix some common invalid charset values
+			$fixes = [
+				'utf-8',
+				'utf',
+			];
+
+			$charset = $wpdb->charset;
+			if ( in_array( strtolower( $charset ), $fixes, true ) ) {
+				$charset = 'utf8';
+			}
+
+			$charset_collate = "DEFAULT CHARACTER SET $charset";
+		}
+
+		if ( ! empty( $wpdb->collate ) ) {
+			$charset_collate .= " COLLATE=$wpdb->collate";
+		}
+
+		return $charset_collate;
+	}
+
+	/**
+	 * Performs a $wpdb->query, and throws an exception if an error occurs
+	 *
+	 * @return bool true if query is performed ok, otherwise an exception is thrown
+	 */
+	protected function do_query( $wpdb, $sql ) {
+		if ( ! $this->live ) {
+			$this->queries[] = $sql;
+			return true;
+		}
+
+		// These are known queries without user input
+		// phpcs:ignore
+		$result = $wpdb->query( $sql );
+
+		if ( $result === false ) {
+			/* translators: 1: SQL string */
+			throw new Exception( sprintf( __( 'Failed to perform query "%s"' ), $sql ) );
+		}
+
+		return true;
+	}
+
+	/**
+	 * Load a database upgrader class
+	 *
+	 * @return object Database upgrader
+	 */
+	public static function get( $version ) {
+		include_once dirname( __FILE__ ) . '/schema/' . str_replace( [ '..', '/' ], '', $version['file'] );
+
+		return new $version['class'];
+	}
+
+	private function has_stage( $stage ) {
+		return in_array( $stage, array_keys( $this->get_stages() ), true );
+	}
+}

wp-content/plugins/redirection/database/database.php

@@ -0,0 +1,165 @@
+<?php
+
+include_once dirname( __FILE__ ) . '/database-status.php';
+include_once dirname( __FILE__ ) . '/database-upgrader.php';
+
+class Red_Database {
+	/**
+	 * Get all upgrades for a database version
+	 *
+	 * @return array Array of versions from self::get_upgrades()
+	 */
+	public function get_upgrades_for_version( $current_version, $current_stage ) {
+		if ( empty( $current_version ) ) {
+			return [
+				[
+					'version' => REDIRECTION_DB_VERSION,
+					'file' => 'latest.php',
+					'class' => 'Red_Latest_Database',
+				],
+			];
+		}
+
+		$upgraders = [];
+		$found = false;
+
+		foreach ( $this->get_upgrades() as $upgrade ) {
+			if ( ! $found ) {
+				$upgrader = Red_Database_Upgrader::get( $upgrade );
+
+				$stage_present = in_array( $current_stage, array_keys( $upgrader->get_stages() ), true );
+				$same_version = $current_stage === false && version_compare( $upgrade['version'], $current_version, 'g' );
+
+				if ( $stage_present || $same_version ) {
+					$found = true;
+				}
+			}
+
+			if ( $found ) {
+				$upgraders[] = $upgrade;
+			}
+		}
+
+		return $upgraders;
+	}
+
+	/**
+	 * Apply a particular upgrade stage
+	 *
+	 * @return mixed Result for upgrade
+	 */
+	public function apply_upgrade( Red_Database_Status $status ) {
+		$upgraders = $this->get_upgrades_for_version( $status->get_current_version(), $status->get_current_stage() );
+
+		if ( count( $upgraders ) === 0 ) {
+			$status->set_error( 'No upgrades found for version ' . $status->get_current_version() );
+			return;
+		}
+
+		if ( $status->get_current_stage() === false ) {
+			if ( $status->needs_installing() ) {
+				$status->start_install( $upgraders );
+			} else {
+				$status->start_upgrade( $upgraders );
+			}
+		}
+
+		// Look at first upgrade
+		$upgrader = Red_Database_Upgrader::get( $upgraders[0] );
+
+		// Perform the upgrade
+		$upgrader->perform_stage( $status );
+
+		if ( ! $status->is_error() ) {
+			$status->set_next_stage();
+		}
+	}
+
+	public static function apply_to_sites( $callback ) {
+		if ( is_multisite() && ( is_network_admin() || defined( 'WP_CLI' ) && WP_CLI ) ) {
+			$total = get_sites( [ 'count' => true ] );
+			$per_page = 100;
+
+			// Paginate through all sites and apply the callback
+			for ( $offset = 0; $offset < $total; $offset += $per_page ) {
+				array_map( function( $site ) use ( $callback ) {
+					switch_to_blog( $site->blog_id );
+
+					$callback();
+
+					restore_current_blog();
+				}, get_sites( [ 'number' => $per_page, 'offset' => $offset ] ) );
+			}
+
+			return;
+		}
+
+		$callback();
+	}
+
+	/**
+	 * Get latest database installer
+	 *
+	 * @return object Red_Latest_Database
+	 */
+	public static function get_latest_database() {
+		include_once dirname( __FILE__ ) . '/schema/latest.php';
+
+		return new Red_Latest_Database();
+	}
+
+	/**
+	 * List of all upgrades and their associated file
+	 *
+	 * @return array Database upgrade array
+	 */
+	public function get_upgrades() {
+		return [
+			[
+				'version' => '2.0.1',
+				'file' => '201.php',
+				'class' => 'Red_Database_201',
+			],
+			[
+				'version' => '2.1.16',
+				'file' => '216.php',
+				'class' => 'Red_Database_216',
+			],
+			[
+				'version' => '2.2',
+				'file' => '220.php',
+				'class' => 'Red_Database_220',
+			],
+			[
+				'version' => '2.3.1',
+				'file' => '231.php',
+				'class' => 'Red_Database_231',
+			],
+			[
+				'version' => '2.3.2',
+				'file' => '232.php',
+				'class' => 'Red_Database_232',
+			],
+			[
+				'version' => '2.3.3',
+				'file' => '233.php',
+				'class' => 'Red_Database_233',
+			],
+			[
+				'version' => '2.4',
+				'file' => '240.php',
+				'class' => 'Red_Database_240',
+			],
+			[
+				'version' => '4.0',
+				'file' => '400.php',
+				'class' => 'Red_Database_400',
+			],
+			[
+				'version' => '4.1',
+				'file' => '410.php',
+				'class' => 'Red_Database_410',
+			],
+		];
+	}
+}

wp-content/plugins/redirection/database/schema/201.php

@@ -0,0 +1,14 @@
+<?php
+
+// Note: not localised as the messages aren't important enough
+class Red_Database_201 extends Red_Database_Upgrader {
+	public function get_stages() {
+		return [
+			'add_title_201' => 'Add titles to redirects',
+		];
+	}
+
+	protected function add_title_201( $wpdb ) {
+		return $this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_items` ADD `title` varchar(50) NULL" );
+	}
+}

wp-content/plugins/redirection/database/schema/216.php

@@ -0,0 +1,26 @@
+<?php
+
+// Note: not localised as the messages aren't important enough
+class Red_Database_216 extends Red_Database_Upgrader {
+	public function get_stages() {
+		return [
+			'add_group_indices_216' => 'Add indices to groups',
+			'add_redirect_indices_216' => 'Add indices to redirects',
+		];
+	}
+
+	protected function add_group_indices_216( $wpdb ) {
+		$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_groups` ADD INDEX(module_id)" );
+		$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_groups` ADD INDEX(status)" );
+
+		return true;
+	}
+
+	protected function add_redirect_indices_216( $wpdb ) {
+		$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_items` ADD INDEX(url(191))" );
+		$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_items` ADD INDEX(status)" );
+		$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_items` ADD INDEX(regex)" );
+
+		return true;
+	}
+}

wp-content/plugins/redirection/database/schema/220.php

@@ -0,0 +1,26 @@
+<?php
+
+// Note: not localised as the messages aren't important enough
+class Red_Database_220 extends Red_Database_Upgrader {
+	public function get_stages() {
+		return [
+			'add_group_indices_220' => 'Add group indices to redirects',
+			'add_log_indices_220' => 'Add indices to logs',
+		];
+	}
+
+	protected function add_group_indices_220( $wpdb ) {
+		$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_items` ADD INDEX `group_idpos` (`group_id`,`position`)" );
+		$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_items` ADD INDEX `group` (`group_id`)" );
+		return true;
+	}
+
+	protected function add_log_indices_220( $wpdb ) {
+		$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_logs` ADD INDEX `created` (`created`)" );
+		$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_logs` ADD INDEX `redirection_id` (`redirection_id`)" );
+		$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_logs` ADD INDEX `ip` (`ip`)" );
+		$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_logs` ADD INDEX `group_id` (`group_id`)" );
+		$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_logs` ADD INDEX `module_id` (`module_id`)" );
+		return true;
+	}
+}

wp-content/plugins/redirection/database/schema/231.php

@@ -0,0 +1,37 @@
+<?php
+
+// Note: not localised as the messages aren't important enough
+class Red_Database_231 extends Red_Database_Upgrader {
+	public function get_stages() {
+		return [
+			'remove_404_module_231' => 'Remove 404 module',
+			'create_404_table_231' => 'Create 404 table',
+		];
+	}
+
+	protected function remove_404_module_231( $wpdb ) {
+		return $this->do_query( $wpdb, "UPDATE {$wpdb->prefix}redirection_groups SET module_id=1 WHERE module_id=3" );
+	}
+
+	protected function create_404_table_231( $wpdb ) {
+		$this->do_query( $wpdb, $this->get_404_table( $wpdb ) );
+	}
+
+	private function get_404_table( $wpdb ) {
+		$charset_collate = $this->get_charset();
+
+		return "CREATE TABLE `{$wpdb->prefix}redirection_404` (
+			`id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+			`created` datetime NOT NULL,
+			`url` varchar(255) NOT NULL DEFAULT '',
+			`agent` varchar(255) DEFAULT NULL,
+			`referrer` varchar(255) DEFAULT NULL,
+			`ip` int(10) unsigned NOT NULL,
+			PRIMARY KEY (`id`),
+			KEY `created` (`created`),
+			KEY `url` (`url`(191)),
+			KEY `ip` (`ip`),
+			KEY `referrer` (`referrer`(191))
+		  ) $charset_collate";
+	}
+}

wp-content/plugins/redirection/database/schema/232.php

@@ -0,0 +1,15 @@
+<?php
+
+// Note: not localised as the messages aren't important enough
+class Red_Database_232 extends Red_Database_Upgrader {
+	public function get_stages() {
+		return [
+			'remove_modules_232' => 'Remove module table',
+		];
+	}
+
+	protected function remove_modules_232( $wpdb ) {
+		$this->do_query( $wpdb, "DROP TABLE IF EXISTS {$wpdb->prefix}redirection_modules" );
+		return true;
+	}
+}

wp-content/plugins/redirection/database/schema/233.php

@@ -0,0 +1,17 @@
+<?php
+
+// Note: not localised as the messages aren't important enough
+class Red_Database_233 extends Red_Database_Upgrader {
+	public function get_stages() {
+		return [
+			'fix_invalid_groups_233' => 'Migrate any groups with invalid module ID',
+		];
+	}
+
+	protected function fix_invalid_groups_233( $wpdb ) {
+		$this->do_query( $wpdb, "UPDATE {$wpdb->prefix}redirection_groups SET module_id=1 WHERE module_id > 2" );
+
+		$latest = Red_Database::get_latest_database();
+		return $latest->create_groups( $wpdb );
+	}
+}

wp-content/plugins/redirection/database/schema/240.php

@@ -0,0 +1,88 @@
+<?php
+
+/**
+ * There are several problems with 2.3.3 => 2.4 that this attempts to cope with:
+ * - some sites have a misconfigured IP column
+ * - some sites don't have any IP column
+ */
+class Red_Database_240 extends Red_Database_Upgrader {
+	public function get_stages() {
+		return [
+			'convert_int_ip_to_varchar_240' => 'Convert integer IP values to support IPv6',
+			'expand_log_ip_column_240' => 'Expand IP size in logs to support IPv6',
+			'convert_title_to_text_240' => 'Expand size of redirect titles',
+			'add_missing_index_240' => 'Add missing IP index to 404 logs',
+		];
+	}
+
+	private function has_ip_index( $wpdb ) {
+		$wpdb->hide_errors();
+		$existing = $wpdb->get_row( "SHOW CREATE TABLE `{$wpdb->prefix}redirection_404`", ARRAY_N );
+		$wpdb->show_errors();
+
+		if ( isset( $existing[1] ) && strpos( strtolower( $existing[1] ), 'key `ip` (' ) !== false ) {
+			return true;
+		}
+
+		return false;
+	}
+
+	protected function has_varchar_ip( $wpdb ) {
+		$wpdb->hide_errors();
+		$existing = $wpdb->get_row( "SHOW CREATE TABLE `{$wpdb->prefix}redirection_404`", ARRAY_N );
+		$wpdb->show_errors();
+
+		if ( isset( $existing[1] ) && strpos( strtolower( $existing[1] ), '`ip` varchar(45)' ) !== false ) {
+			return true;
+		}
+
+		return false;
+	}
+
+	protected function has_int_ip( $wpdb ) {
+		$wpdb->hide_errors();
+		$existing = $wpdb->get_row( "SHOW CREATE TABLE `{$wpdb->prefix}redirection_404`", ARRAY_N );
+		$wpdb->show_errors();
+
+		if ( isset( $existing[1] ) && strpos( strtolower( $existing[1] ), '`ip` int' ) !== false ) {
+			return true;
+		}
+
+		return false;
+	}
+
+	protected function convert_int_ip_to_varchar_240( $wpdb ) {
+		if ( $this->has_int_ip( $wpdb ) ) {
+			$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_404` ADD `ipaddress` VARCHAR(45) DEFAULT NULL AFTER `ip`" );
+			$this->do_query( $wpdb, "UPDATE {$wpdb->prefix}redirection_404 SET ipaddress=INET_NTOA(ip)" );
+			$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_404` DROP `ip`" );
+			return $this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_404` CHANGE `ipaddress` `ip` VARCHAR(45) DEFAULT NULL" );
+		}
+
+		return true;
+	}
+
+	protected function expand_log_ip_column_240( $wpdb ) {
+		return $this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_logs` CHANGE `ip` `ip` VARCHAR(45) DEFAULT NULL" );
+	}
+
+	protected function add_missing_index_240( $wpdb ) {
+		if ( $this->has_ip_index( $wpdb ) ) {
+			// Remove index
+			$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_404` DROP INDEX ip" );
+		}
+
+		// Ensure we have an IP column
+		$this->convert_int_ip_to_varchar_240( $wpdb );
+		if ( ! $this->has_varchar_ip( $wpdb ) ) {
+			$this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_404` ADD `ip` VARCHAR(45) DEFAULT NULL" );
+		}
+
+		// Finally add the index
+		return $this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_404` ADD INDEX `ip` (`ip`)" );
+	}
+
+	protected function convert_title_to_text_240( $wpdb ) {
+		return $this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_items` CHANGE `title` `title` text" );
+	}
+}

wp-content/plugins/redirection/database/schema/400.php

@@ -0,0 +1,68 @@
+<?php
+
+class Red_Database_400 extends Red_Database_Upgrader {
+	public function get_stages() {
+		return [
+			'add_match_url_400' => 'Add a matched URL column',
+			'add_match_url_index' => 'Add match URL index',
+			'add_redirect_data_400' => 'Add column to store new flags',
+			'convert_existing_urls_400' => 'Convert existing URLs to new format',
+		];
+	}
+
+	private function has_column( $wpdb, $column ) {
+		$existing = $wpdb->get_row( "SHOW CREATE TABLE `{$wpdb->prefix}redirection_items`", ARRAY_N );
+
+		if ( isset( $existing[1] ) && strpos( strtolower( $existing[1] ), strtolower( $column ) ) !== false ) {
+			return true;
+		}
+
+		return false;
+	}
+
+	private function has_match_index( $wpdb ) {
+		$existing = $wpdb->get_row( "SHOW CREATE TABLE `{$wpdb->prefix}redirection_items`", ARRAY_N );
+
+		if ( isset( $existing[1] ) && strpos( strtolower( $existing[1] ), 'key `match_url' ) !== false ) {
+			return true;
+		}
+
+		return false;
+	}
+
+	protected function add_match_url_400( $wpdb ) {
+		if ( ! $this->has_column( $wpdb, '`match_url` varchar(2000)' ) ) {
+			return $this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_items` ADD `match_url` VARCHAR(2000) NULL DEFAULT NULL AFTER `url`" );
+		}
+
+		return true;
+	}
+
+	protected function add_match_url_index( $wpdb ) {
+		if ( ! $this->has_match_index( $wpdb ) ) {
+			return $this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_items` ADD INDEX `match_url` (`match_url`(191))" );
+		}
+	}
+
+	protected function add_redirect_data_400( $wpdb ) {
+		if ( ! $this->has_column( $wpdb, '`match_data` TEXT' ) ) {
+			return $this->do_query( $wpdb, "ALTER TABLE `{$wpdb->prefix}redirection_items` ADD `match_data` TEXT NULL DEFAULT NULL AFTER `match_url`" );
+		}
+
+		return true;
+	}
+
+	protected function convert_existing_urls_400( $wpdb ) {
+		// All regex get match_url=regex
+		$this->do_query( $wpdb, "UPDATE `{$wpdb->prefix}redirection_items` SET match_url='regex' WHERE regex=1" );
+
+		// Remove query part from all URLs and lowercase
+		$this->do_query( $wpdb, "UPDATE `{$wpdb->prefix}redirection_items` SET match_url=SUBSTRING_INDEX(LOWER(url), '?', 1) WHERE regex=0" );
+
+		// Trim the last / from a URL
+		$this->do_query( $wpdb, "UPDATE `{$wpdb->prefix}redirection_items` SET match_url=LEFT(match_url,LENGTH(match_url)-1) WHERE regex=0 AND match_url != '/' AND RIGHT(match_url, 1) = '/'" );
+
+		// Any URL that is now empty becomes /
+		return $this->do_query( $wpdb, "UPDATE `{$wpdb->prefix}redirection_items` SET match_url='/' WHERE match_url=''" );
+	}
+}

wp-content/plugins/redirection/database/schema/410.php

@@ -0,0 +1,17 @@
+<?php
+
+class Red_Database_410 extends Red_Database_Upgrader {
+	public function get_stages() {
+		return [
+			'handle_double_slash' => 'Support double-slash URLs',
+		];
+	}
+
+	protected function handle_double_slash( $wpdb ) {
+		// Update any URL with a double slash at the end
+		$this->do_query( $wpdb, "UPDATE `{$wpdb->prefix}redirection_items` SET match_url=LOWER(LEFT(SUBSTRING_INDEX(url, '?', 1),LENGTH(SUBSTRING_INDEX(url, '?', 1)) - 1)) WHERE RIGHT(SUBSTRING_INDEX(url, '?', 1), 2) = '//' AND regex=0" );
+
+		// Any URL that is now empty becomes /
+		return $this->do_query( $wpdb, "UPDATE `{$wpdb->prefix}redirection_items` SET match_url='/' WHERE match_url=''" );
+	}
+}

wp-content/plugins/redirection/database/schema/latest.php

@@ -0,0 +1,251 @@
+<?php
+
+/**
+ * Latest database schema
+ */
+class Red_Latest_Database extends Red_Database_Upgrader {
+	public function get_stages() {
+		return [
+			'create_tables' => __( 'Install Redirection tables', 'redirection' ),
+			'create_groups' => __( 'Create basic data', 'redirection' ),
+		];
+	}
+
+	/**
+	 * Install the latest database
+	 *
+	 * @return bool|WP_Error true if installed, WP_Error otherwise
+	 */
+	public function install() {
+		global $wpdb;
+
+		foreach ( $this->get_stages() as $stage => $info ) {
+			$result = $this->$stage( $wpdb );
+
+			if ( is_wp_error( $result ) ) {
+				if ( $wpdb->last_error ) {
+					$result->add_data( $wpdb->last_error );
+				}
+
+				return $result;
+			}
+		}
+
+		red_set_options( array( 'database' => REDIRECTION_DB_VERSION ) );
+		return true;
+	}
+
+	/**
+	 * Remove the database and any options (including unused ones)
+	 */
+	public function remove() {
+		global $wpdb;
+
+		$wpdb->query( "DROP TABLE IF EXISTS {$wpdb->prefix}redirection_items" );
+		$wpdb->query( "DROP TABLE IF EXISTS {$wpdb->prefix}redirection_logs" );
+		$wpdb->query( "DROP TABLE IF EXISTS {$wpdb->prefix}redirection_groups" );
+		$wpdb->query( "DROP TABLE IF EXISTS {$wpdb->prefix}redirection_modules" );
+		$wpdb->query( "DROP TABLE IF EXISTS {$wpdb->prefix}redirection_404" );
+
+		delete_option( 'redirection_lookup' );
+		delete_option( 'redirection_post' );
+		delete_option( 'redirection_root' );
+		delete_option( 'redirection_index' );
+		delete_option( 'redirection_options' );
+		delete_option( Red_Database_Status::OLD_DB_VERSION );
+		delete_option( Red_Database_Status::DB_UPGRADE_STAGE );
+	}
+
+	/**
+	 * Return any tables that are missing from the database
+	 *
+	 * @return array Array of missing table names
+	 */
+	public function get_missing_tables() {
+		global $wpdb;
+
+		$tables = array_keys( $this->get_all_tables() );
+		$missing = [];
+
+		foreach ( $tables as $table ) {
+			$result = $wpdb->query( $wpdb->prepare( 'SHOW TABLES LIKE %s', $table ) );
+
+			if ( intval( $result, 10 ) !== 1 ) {
+				$missing[] = $table;
+			}
+		}
+
+		return $missing;
+	}
+
+	/**
+	 * Get table schema for latest database tables
+	 *
+	 * @return array Database schema array
+	 */
+	public function get_table_schema() {
+		global $wpdb;
+
+		$tables = array_keys( $this->get_all_tables() );
+		$show = array();
+
+		foreach ( $tables as $table ) {
+			// These are known queries without user input
+			// phpcs:ignore
+			$row = $wpdb->get_row( 'SHOW CREATE TABLE ' . $table, ARRAY_N );
+
+			if ( $row ) {
+				$show = array_merge( $show, explode( "\n", $row[1] ) );
+				$show[] = '';
+			} else {
+				/* translators: 1: table name */
+				$show[] = sprintf( __( 'Table "%s" is missing', 'redirection' ), $table );
+			}
+		}
+
+		return $show;
+	}
+
+	/**
+	 * Return array of table names and table schema
+	 *
+	 * @return array
+	 */
+	public function get_all_tables() {
+		global $wpdb;
+
+		$charset_collate = $this->get_charset();
+
+		return array(
+			"{$wpdb->prefix}redirection_items" => $this->create_items_sql( $wpdb->prefix, $charset_collate ),
+			"{$wpdb->prefix}redirection_groups" => $this->create_groups_sql( $wpdb->prefix, $charset_collate ),
+			"{$wpdb->prefix}redirection_logs" => $this->create_log_sql( $wpdb->prefix, $charset_collate ),
+			"{$wpdb->prefix}redirection_404" => $this->create_404_sql( $wpdb->prefix, $charset_collate ),
+		);
+	}
+
+	/**
+	 * Creates default group information
+	 */
+	public function create_groups( $wpdb ) {
+		$defaults = [
+			[
+				'name' => __( 'Redirections', 'redirection' ),
+				'module_id' => 1,
+				'position' => 0,
+			],
+			[
+				'name' => __( 'Modified Posts', 'redirection' ),
+				'module_id' => 1,
+				'position' => 1,
+			],
+		];
+
+		$existing_groups = $wpdb->get_var( "SELECT COUNT(*) FROM {$wpdb->prefix}redirection_groups" );
+
+		// Default groups
+		if ( intval( $existing_groups, 10 ) === 0 ) {
+			$wpdb->insert( $wpdb->prefix . 'redirection_groups', $defaults[0] );
+			$wpdb->insert( $wpdb->prefix . 'redirection_groups', $defaults[1] );
+		}
+
+		$group = $wpdb->get_row( "SELECT * FROM {$wpdb->prefix}redirection_groups LIMIT 1" );
+		if ( $group ) {
+			red_set_options( array( 'last_group_id' => $group->id ) );
+		}
+
+		return true;
+	}
+
+	/**
+	 * Creates all the tables
+	 */
+	public function create_tables( $wpdb ) {
+		global $wpdb;
+
+		foreach ( $this->get_all_tables() as $table => $sql ) {
+			$sql = preg_replace( '/[ \t]{2,}/', '', $sql );
+			$this->do_query( $wpdb, $sql );
+		}
+
+		return true;
+	}
+
+	private function create_items_sql( $prefix, $charset_collate ) {
+		return "CREATE TABLE IF NOT EXISTS `{$prefix}redirection_items` (
+			`id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+			`url` mediumtext NOT NULL,
+			`match_url` varchar(2000) DEFAULT NULL,
+  			`match_data` text,
+			`regex` int(11) unsigned NOT NULL DEFAULT '0',
+			`position` int(11) unsigned NOT NULL DEFAULT '0',
+			`last_count` int(10) unsigned NOT NULL DEFAULT '0',
+			`last_access` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
+			`group_id` int(11) NOT NULL DEFAULT '0',
+			`status` enum('enabled','disabled') NOT NULL DEFAULT 'enabled',
+			`action_type` varchar(20) NOT NULL,
+			`action_code` int(11) unsigned NOT NULL,
+			`action_data` mediumtext,
+			`match_type` varchar(20) NOT NULL,
+			`title` text,
+			PRIMARY KEY (`id`),
+			KEY `url` (`url`(191)),
+			KEY `status` (`status`),
+			KEY `regex` (`regex`),
+			KEY `group_idpos` (`group_id`,`position`),
+			KEY `group` (`group_id`),
+			KEY `match_url` (`match_url`(191))
+	  ) $charset_collate";
+	}
+
+	private function create_groups_sql( $prefix, $charset_collate ) {
+		return "CREATE TABLE IF NOT EXISTS `{$prefix}redirection_groups` (
+			`id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+			`name` varchar(50) NOT NULL,
+			`tracking` int(11) NOT NULL DEFAULT '1',
+			`module_id` int(11) unsigned NOT NULL DEFAULT '0',
+			`status` enum('enabled','disabled') NOT NULL DEFAULT 'enabled',
+			`position` int(11) unsigned NOT NULL DEFAULT '0',
+			PRIMARY KEY (`id`),
+			KEY `module_id` (`module_id`),
+			KEY `status` (`status`)
+		) $charset_collate";
+	}
+
+	private function create_log_sql( $prefix, $charset_collate ) {
+		return "CREATE TABLE IF NOT EXISTS `{$prefix}redirection_logs` (
+		  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+		  `created` datetime NOT NULL,
+		  `url` mediumtext NOT NULL,
+		  `sent_to` mediumtext,
+		  `agent` mediumtext NOT NULL,
+		  `referrer` mediumtext,
+		  `redirection_id` int(11) unsigned DEFAULT NULL,
+  		  `ip` varchar(45) DEFAULT NULL,
+		  `module_id` int(11) unsigned NOT NULL,
+		  `group_id` int(11) unsigned DEFAULT NULL,
+		  PRIMARY KEY (`id`),
+		  KEY `created` (`created`),
+		  KEY `redirection_id` (`redirection_id`),
+		  KEY `ip` (`ip`),
+		  KEY `group_id` (`group_id`),
+		  KEY `module_id` (`module_id`)
+	  	) $charset_collate";
+	}
+
+	private function create_404_sql( $prefix, $charset_collate ) {
+		return "CREATE TABLE IF NOT EXISTS `{$prefix}redirection_404` (
+		  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+		  `created` datetime NOT NULL,
+		  `url` varchar(255) NOT NULL DEFAULT '',
+		  `agent` varchar(255) DEFAULT NULL,
+		  `referrer` varchar(255) DEFAULT NULL,
+		  `ip` varchar(45) DEFAULT NULL,
+		  PRIMARY KEY (`id`),
+		  KEY `created` (`created`),
+		  KEY `url` (`url`(191)),
+		  KEY `referrer` (`referrer`(191)),
+		  KEY `ip` (`ip`)
+	  	) $charset_collate";
+	}
+}

wp-content/plugins/redirection/fileio/apache.php

@@ -0,0 +1,182 @@
+<?php
+
+class Red_Apache_File extends Red_FileIO {
+	public function force_download() {
+		parent::force_download();
+
+		header( 'Content-Type: application/octet-stream' );
+		header( 'Content-Disposition: attachment; filename="' . $this->export_filename( 'htaccess' ) . '"' );
+	}
+
+	public function get_data( array $items, array $groups ) {
+		include_once dirname( dirname( __FILE__ ) ) . '/models/htaccess.php';
+
+		$htaccess = new Red_Htaccess();
+
+		foreach ( $items as $item ) {
+			$htaccess->add( $item );
+		}
+
+		return $htaccess->get() . PHP_EOL;
+	}
+
+	public function load( $group, $filename, $data ) {
+		// Remove any comments
+		$data = str_replace( "\n", "\r", $data );
+
+		// Split it into lines
+		$lines = array_filter( explode( "\r", $data ) );
+		$count = 0;
+
+		foreach ( (array) $lines as $line ) {
+			$item = $this->get_as_item( $line );
+
+			if ( $item ) {
+				$item['group_id'] = $group;
+				$redirect = Red_Item::create( $item );
+
+				if ( ! is_wp_error( $redirect ) ) {
+					$count++;
+				}
+			}
+		}
+
+		return $count;
+	}
+
+	public function get_as_item( $line ) {
+		$item = false;
+
+		if ( preg_match( '@rewriterule\s+(.*?)\s+(.*?)\s+(\[.*\])*@i', $line, $matches ) > 0 ) {
+			$item = array(
+				'url' => $this->regex_url( $matches[1] ),
+				'match_type' => 'url',
+				'action_type' => 'url',
+				'action_data' => array( 'url' => $this->decode_url( $matches[2] ) ),
+				'action_code' => $this->get_code( $matches[3] ),
+				'regex' => $this->is_regex( $matches[1] ),
+			);
+		} elseif ( preg_match( '@Redirect\s+(.*?)\s+"(.*?)"\s+(.*)@i', $line, $matches ) > 0 || preg_match( '@Redirect\s+(.*?)\s+(.*?)\s+(.*)@i', $line, $matches ) > 0 ) {
+			$item = array(
+				'url' => $this->decode_url( $matches[2] ),
+				'match_type' => 'url',
+				'action_type' => 'url',
+				'action_data' => array( 'url' => $this->decode_url( $matches[3] ) ),
+				'action_code' => $this->get_code( $matches[1] ),
+			);
+		} elseif ( preg_match( '@Redirect\s+"(.*?)"\s+(.*)@i', $line, $matches ) > 0 || preg_match( '@Redirect\s+(.*?)\s+(.*)@i', $line, $matches ) > 0 ) {
+			$item = array(
+				'url' => $this->decode_url( $matches[1] ),
+				'match_type' => 'url',
+				'action_type' => 'url',
+				'action_data' => array( 'url' => $this->decode_url( $matches[2] ) ),
+				'action_code' => 302,
+			);
+		} elseif ( preg_match( '@Redirectmatch\s+(.*?)\s+(.*?)\s+(.*)@i', $line, $matches ) > 0 ) {
+			$item = array(
+				'url' => $this->decode_url( $matches[2] ),
+				'match_type' => 'url',
+				'action_type' => 'url',
+				'action_data' => array( 'url' => $this->decode_url( $matches[3] ) ),
+				'action_code' => $this->get_code( $matches[1] ),
+				'regex' => true,
+			);
+		} elseif ( preg_match( '@Redirectmatch\s+(.*?)\s+(.*)@i', $line, $matches ) > 0 ) {
+			$item = array(
+				'url' => $this->decode_url( $matches[1] ),
+				'match_type' => 'url',
+				'action_type' => 'url',
+				'action_data' => array( 'url' => $this->decode_url( $matches[2] ) ),
+				'action_code' => 302,
+				'regex' => true,
+			);
+		}
+
+		if ( $item ) {
+			$item['action_type'] = 'url';
+			$item['match_type'] = 'url';
+
+			if ( $item['action_code'] === 0 ) {
+				$item['action_type'] = 'pass';
+			}
+
+			return $item;
+		}
+
+		return false;
+	}
+
+	private function decode_url( $url ) {
+		$url = rawurldecode( $url );
+
+		// Replace quoted slashes
+		$url = preg_replace( '@\\\/@', '/', $url );
+
+		// Ensure escaped '.' is still escaped
+		$url = preg_replace( '@\\\\.@', '\\\\.', $url );
+		return $url;
+	}
+
+	private function is_str_regex( $url ) {
+		$regex  = '()[]$^?+.';
+		$escape = false;
+
+		for ( $x = 0; $x < strlen( $url ); $x++ ) {
+			$escape = false;
+
+			if ( $url{$x} === '\\' ) {
+				$escape = true;
+			} elseif ( strpos( $regex, $url{$x} ) !== false && ! $escape ) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	private function is_regex( $url ) {
+		if ( $this->is_str_regex( $url ) ) {
+			$tmp = ltrim( $url, '^' );
+			$tmp = rtrim( $tmp, '$' );
+
+			if ( $this->is_str_regex( $tmp ) ) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	private function regex_url( $url ) {
+		$url = $this->decode_url( $url );
+
+		if ( $this->is_str_regex( $url ) ) {
+			$tmp = ltrim( $url, '^' );
+			$tmp = rtrim( $tmp, '$' );
+
+			if ( $this->is_str_regex( $tmp ) ) {
+				return '^/' . ltrim( $tmp, '/' );
+			}
+
+			return '/' . ltrim( $tmp, '/' );
+		}
+
+		return $this->decode_url( $url );
+	}
+
+	private function get_code( $code ) {
+		if ( strpos( $code, '301' ) !== false || stripos( $code, 'permanent' ) !== false ) {
+			return 301;
+		} elseif ( strpos( $code, '302' ) !== false ) {
+			return 302;
+		} elseif ( strpos( $code, '307' ) !== false || stripos( $code, 'seeother' ) !== false ) {
+			return 307;
+		} elseif ( strpos( $code, '404' ) !== false || stripos( $code, 'forbidden' ) !== false || strpos( $code, 'F' ) !== false ) {
+			return 404;
+		} elseif ( strpos( $code, '410' ) !== false || stripos( $code, 'gone' ) !== false || strpos( $code, 'G' ) !== false ) {
+			return 410;
+		}
+
+		return 302;
+	}
+}

wp-content/plugins/redirection/fileio/csv.php

@@ -0,0 +1,124 @@
+<?php
+
+class Red_Csv_File extends Red_FileIO {
+	const CSV_SOURCE = 0;
+	const CSV_TARGET = 1;
+	const CSV_REGEX = 2;
+	const CSV_CODE = 3;
+
+	public function force_download() {
+		parent::force_download();
+
+		header( 'Content-Type: text/csv' );
+		header( 'Content-Disposition: attachment; filename="' . $this->export_filename( 'csv' ) . '"' );
+	}
+
+	public function get_data( array $items, array $groups ) {
+		$lines[] = implode( ',', array( 'source', 'target', 'regex', 'type', 'code', 'match', 'hits', 'title' ) );
+
+		foreach ( $items as $line ) {
+			$lines[] = $this->item_as_csv( $line );
+		}
+
+		return implode( PHP_EOL, $lines ) . PHP_EOL;
+	}
+
+	public function item_as_csv( $item ) {
+		$data = $item->match->get_data();
+		$data = isset( $data['url'] ) ? $data = $data['url'] : '*';
+
+		$csv = array(
+			$item->get_url(),
+			$data,
+			$item->is_regex() ? 1 : 0,
+			$item->get_action_type(),
+			$item->get_action_code(),
+			$item->get_action_type(),
+			$item->get_hits(),
+			$item->get_title(),
+		);
+
+		$csv = array_map( array( $this, 'escape_csv' ), $csv );
+		return join( $csv, ',' );
+	}
+
+	public function escape_csv( $item ) {
+		return '"' . str_replace( '"', '""', $item ) . '"';
+	}
+
+	public function load( $group, $filename, $data ) {
+		ini_set( 'auto_detect_line_endings', true );
+
+		$file = fopen( $filename, 'r' );
+
+		ini_set( 'auto_detect_line_endings', false );
+
+		$count = 0;
+		if ( $file ) {
+			$count = $this->load_from_file( $group, $file, ',' );
+
+			// Try again with semicolons - Excel often exports CSV with semicolons
+			if ( $count === 0 ) {
+				$count = $this->load_from_file( $group, $file, ';' );
+			}
+		}
+
+		return $count;
+	}
+
+	public function load_from_file( $group_id, $file, $separator ) {
+		$count = 0;
+
+		while ( ( $csv = fgetcsv( $file, 5000, $separator ) ) ) {
+			$item = $this->csv_as_item( $csv, $group_id );
+
+			if ( $item ) {
+				$created = Red_Item::create( $item );
+
+				if ( ! is_wp_error( $created ) ) {
+					$count++;
+				}
+			}
+		}
+
+		return $count;
+	}
+
+	private function get_valid_code( $code ) {
+		if ( get_status_header_desc( $code ) !== '' ) {
+			return intval( $code, 10 );
+		}
+
+		return 301;
+	}
+
+	public function csv_as_item( $csv, $group ) {
+		if ( count( $csv ) > 1 && $csv[ self::CSV_SOURCE ] !== 'source' && $csv[ self::CSV_TARGET ] !== 'target' ) {
+			return array(
+				'url'         => trim( $csv[ self::CSV_SOURCE ] ),
+				'action_data' => array( 'url' => trim( $csv[ self::CSV_TARGET ] ) ),
+				'regex'       => isset( $csv[ self::CSV_REGEX ] ) ? $this->parse_regex( $csv[ self::CSV_REGEX ] ) : $this->is_regex( $csv[ self::CSV_SOURCE ] ),
+				'group_id'    => $group,
+				'match_type'  => 'url',
+				'action_type' => 'url',
+				'action_code' => isset( $csv[ self::CSV_CODE ] ) ? $this->get_valid_code( $csv[ self::CSV_CODE ] ) : 301,
+			);
+		}
+
+		return false;
+	}
+
+	private function parse_regex( $value ) {
+		return intval( $value, 10 ) === 1 ? true : false;
+	}
+
+	private function is_regex( $url ) {
+		$regex = '()[]$^*';
+
+		if ( strpbrk( $url, $regex ) === false ) {
+			return false;
+		}
+
+		return true;
+	}
+}

wp-content/plugins/redirection/fileio/json.php

@@ -0,0 +1,82 @@
+<?php
+
+class Red_Json_File extends Red_FileIO {
+	public function force_download() {
+		parent::force_download();
+
+		header( 'Content-Type: application/json' );
+		header( 'Content-Disposition: attachment; filename="' . $this->export_filename( 'json' ) . '"' );
+	}
+
+	public function get_data( array $items, array $groups ) {
+		$version = red_get_plugin_data( dirname( dirname( __FILE__ ) ) . '/redirection.php' );
+
+		$items = array(
+			'plugin' => array(
+				'version' => trim( $version['Version'] ),
+				'date' => date( 'r' ),
+			),
+			'groups' => $groups,
+			'redirects' => array_map( function( $item ) {
+				return $item->to_json();
+			}, $items ),
+		);
+
+		return wp_json_encode( $items, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES ) . PHP_EOL;
+	}
+
+	public function load( $group, $filename, $data ) {
+		global $wpdb;
+
+		$count = 0;
+		$json = @json_decode( $data, true );
+		if ( $json === false ) {
+			return 0;
+		}
+
+		// Import groups
+		$groups = array();
+		$group_map = array();
+
+		if ( isset( $json['groups'] ) ) {
+			foreach ( $json['groups'] as $group ) {
+				$old_group_id = $group['id'];
+				unset( $group['id'] );
+
+				$group = Red_Group::create( $group['name'], $group['module_id'], $group['enabled'] ? true : false );
+				if ( $group ) {
+					$group_map[ $old_group_id ] = $group->get_id();
+				}
+			}
+		}
+
+		unset( $json['groups'] );
+
+		// Import redirects
+		if ( isset( $json['redirects'] ) ) {
+			foreach ( $json['redirects'] as $pos => $redirect ) {
+				unset( $redirect['id'] );
+
+				if ( ! isset( $group_map[ $redirect['group_id'] ] ) ) {
+					$new_group = Red_Group::create( 'Group', 1 );
+					$group_map[ $redirect['group_id'] ] = $new_group->get_id();
+				}
+
+				if ( $redirect['match_type'] === 'url' && isset( $redirect['action_data'] ) && ! is_array( $redirect['action_data'] ) ) {
+					$redirect['action_data'] = array( 'url' => $redirect['action_data'] );
+				}
+
+				$redirect['group_id'] = $group_map[ $redirect['group_id'] ];
+				Red_Item::create( $redirect );
+				$count++;
+
+				// Helps reduce memory usage
+				unset( $json['redirects'][ $pos ] );
+				$wpdb->queries = array();
+				$wpdb->num_queries = 0;
+			}
+		}
+
+		return $count;
+	}
+}

wp-content/plugins/redirection/fileio/nginx.php

@@ -0,0 +1,112 @@
+<?php
+
+class Red_Nginx_File extends Red_FileIO {
+	public function force_download() {
+		parent::force_download();
+
+		header( 'Content-Type: application/octet-stream' );
+		header( 'Content-Disposition: attachment; filename="' . $this->export_filename( 'nginx' ) . '"' );
+	}
+
+	public function get_data( array $items, array $groups ) {
+		$lines   = array();
+		$version = red_get_plugin_data( dirname( dirname( __FILE__ ) ) . '/redirection.php' );
+
+		$lines[] = '# Created by Redirection';
+		$lines[] = '# ' . date( 'r' );
+		$lines[] = '# Redirection ' . trim( $version['Version'] ) . ' - https://redirection.me';
+		$lines[] = '';
+		$lines[] = 'server {';
+
+		$parts = array();
+		foreach ( $items as $item ) {
+			if ( $item->is_enabled() ) {
+				$parts[] = $this->get_nginx_item( $item );
+			}
+		}
+
+		$lines = array_merge( $lines, array_filter( $parts ) );
+
+		$lines[] = '}';
+		$lines[] = '';
+		$lines[] = '# End of Redirection';
+
+		return implode( PHP_EOL, $lines ) . PHP_EOL;
+	}
+
+	private function get_redirect_code( Red_Item $item ) {
+		if ( $item->get_action_code() === 301 ) {
+			return 'permanent';
+		}
+		return 'redirect';
+	}
+
+	function load( $group, $data, $filename = '' ) {
+		return 0;
+	}
+
+	private function get_nginx_item( Red_Item $item ) {
+		$target = 'add_' . $item->get_match_type();
+
+		if ( method_exists( $this, $target ) ) {
+			return '    ' . $this->$target( $item, $item->get_match_data() );
+		}
+
+		return false;
+	}
+
+	private function add_url( Red_Item $item, array $match_data ) {
+		return $this->get_redirect( $item->get_url(), $item->get_action_data(), $this->get_redirect_code( $item ), $match_data['source'] );
+	}
+
+	private function add_agent( Red_Item $item, array $match_data ) {
+		if ( $item->match->url_from ) {
+			$lines[] = 'if ( $http_user_agent ~* ^' . $item->match->user_agent . '$ ) {';
+			$lines[] = '        ' . $this->get_redirect( $item->get_url(), $item->match->url_from, $this->get_redirect_code( $item ), $match_data['source'] );
+			$lines[] = '    }';
+		}
+
+		if ( $item->match->url_notfrom ) {
+			$lines[] = 'if ( $http_user_agent !~* ^' . $item->match->user_agent . '$ ) {';
+			$lines[] = '        ' . $this->get_redirect( $item->get_url(), $item->match->url_notfrom, $this->get_redirect_code( $item ), $match_data['source'] );
+			$lines[] = '    }';
+		}
+
+		return implode( "\n", $lines );
+	}
+
+	private function add_referrer( Red_Item $item, array $match_data ) {
+		if ( $item->match->url_from ) {
+			$lines[] = 'if ( $http_referer ~* ^' . $item->match->referrer . '$ ) {';
+			$lines[] = '        ' . $this->get_redirect( $item->get_url(), $item->match->url_from, $this->get_redirect_code( $item ), $match_data['source'] );
+			$lines[] = '    }';
+		}
+
+		if ( $item->match->url_notfrom ) {
+			$lines[] = 'if ( $http_referer !~* ^' . $item->match->referrer . '$ ) {';
+			$lines[] = '        ' . $this->get_redirect( $item->get_url(), $item->match->url_notfrom, $this->get_redirect_code( $item ), $match_data['source'] );
+			$lines[] = '    }';
+		}
+
+		return implode( "\n", $lines );
+	}
+
+	private function get_redirect( $line, $target, $code, $source ) {
+		// Remove any existing start/end from a regex
+		$line = ltrim( $line, '^' );
+		$line = rtrim( $line, '$' );
+
+		if ( isset( $source['flag_case'] ) && $source['flag_case'] ) {
+			$line = '(?i)^' . $line;
+		} else {
+			$line = '^' . $line;
+		}
+
+		$line = preg_replace( "/[\r\n\t].*?$/s", '', $line );
+		$line = preg_replace( '/[^\PC\s]/u', '', $line );
+		$target = preg_replace( "/[\r\n\t].*?$/s", '', $target );
+		$target = preg_replace( '/[^\PC\s]/u', '', $target );
+
+		return 'rewrite ' . $line . '$ ' . $target . ' ' . $code . ';';
+	}
+}

wp-content/plugins/redirection/fileio/rss.php

@@ -0,0 +1,47 @@
+<?php
+
+class Red_Rss_File extends Red_FileIO {
+	public function force_download() {
+		header( 'Content-type: text/xml; charset=' . get_option( 'blog_charset' ), true );
+	}
+
+	public function get_data( array $items, array $groups ) {
+		$xml = '<?xml version="1.0" encoding="' . get_option( 'blog_charset' ) . '"?' . ">\r\n";
+		ob_start();
+		?>
+<rss version="2.0"
+	xmlns:content="http://purl.org/rss/1.0/modules/content/"
+	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
+	xmlns:dc="http://purl.org/dc/elements/1.1/">
+<channel>
+	<title>Redirection - <?php bloginfo_rss( 'name' ); ?></title>
+	<link><?php esc_url( bloginfo_rss( 'url' ) ); ?></link>
+	<description><?php esc_html( bloginfo_rss( 'description' ) ); ?></description>
+	<pubDate><?php echo esc_html( mysql2date( 'D, d M Y H:i:s +0000', get_lastpostmodified( 'GMT' ), false ) ); ?></pubDate>
+	<generator>
+		<?php echo esc_html( 'http://wordpress.org/?v=' ); ?>
+		<?php bloginfo_rss( 'version' ); ?>
+	</generator>
+	<language><?php echo esc_html( get_option( 'rss_language' ) ); ?></language>
+
+		<?php foreach ( $items as $log ) : ?>
+	<item>
+		<title><?php echo esc_html( $log->get_url() ); ?></title>
+		<link><![CDATA[<?php echo esc_url( home_url() ) . esc_url( $log->get_url() ); ?>]]></link>
+		<pubDate><?php echo esc_html( date( 'D, d M Y H:i:s +0000', intval( $log->get_last_hit(), 10 ) ) ); ?></pubDate>
+		<guid isPermaLink="false"><?php echo esc_html( $log->get_id() ); ?></guid>
+		<description><?php echo esc_html( $log->get_url() ); ?></description>
+	</item>
+		<?php endforeach; ?>
+</channel>
+</rss>
+		<?php
+		$xml .= ob_get_contents();
+		ob_end_clean();
+
+		return $xml;
+	}
+
+	function load( $group, $data, $filename = '' ) {
+	}
+}

wp-content/plugins/redirection/license.txt

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
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+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
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+authors' sake, the GPL requires that modified versions be marked as
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+
+  Some devices are designed to deny users access to install or run
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+
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+
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+modification follow.
+
+                       TERMS AND CONDITIONS
+
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+
+  "This License" refers to version 3 of the GNU General Public License.
+
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+  The "source code" for a work means the preferred form of the work
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+similar laws prohibiting or restricting circumvention of such
+measures.
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+circumvention of technological measures to the extent such circumvention
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+  You may convey verbatim copies of the Program's source code as you
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+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
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+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
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+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
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+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
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+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

wp-content/plugins/redirection/matches/cookie.php

@@ -0,0 +1,18 @@
+<?php
+
+include_once dirname( __FILE__ ) . '/http-header.php';
+
+class Cookie_Match extends Header_Match {
+	public function name() {
+		return __( 'URL and cookie', 'redirection' );
+	}
+
+	public function is_match( $url ) {
+		if ( $this->regex ) {
+			$regex = new Red_Regex( $this->value, true );
+			return $regex->is_match( Redirection_Request::get_cookie( $this->name ) );
+		}
+
+		return Redirection_Request::get_cookie( $this->name ) === $this->value;
+	}
+}

wp-content/plugins/redirection/matches/custom-filter.php

@@ -0,0 +1,40 @@
+<?php
+
+class Custom_Match extends Red_Match {
+	use FromNotFrom_Match;
+
+	public $filter = '';
+
+	public function name() {
+		return __( 'URL and custom filter', 'redirection' );
+	}
+
+	public function save( array $details, $no_target_url = false ) {
+		$data = array(
+			'filter' => isset( $details['filter'] ) ? $this->sanitize_filter( $details['filter'] ) : '',
+		);
+
+		return $this->save_data( $details, $no_target_url, $data );
+	}
+
+	public function sanitize_filter( $name ) {
+		$name = preg_replace( '/[^A-Za-z0-9\-_]/', '', $name );
+
+		return trim( $name );
+	}
+
+	public function is_match( $url ) {
+		return apply_filters( $this->filter, false, $url );
+	}
+
+	public function get_data() {
+		return array_merge( array(
+			'filter' => $this->filter,
+		), $this->get_from_data() );
+	}
+
+	public function load( $values ) {
+		$values = $this->load_data( $values );
+		$this->filter = isset( $values['filter'] ) ? $values['filter'] : '';
+	}
+}

wp-content/plugins/redirection/matches/http-header.php

@@ -0,0 +1,59 @@
+<?php
+
+class Header_Match extends Red_Match {
+	use FromNotFrom_Match;
+
+	public $name;
+	public $value;
+	public $regex;
+
+	public function name() {
+		return __( 'URL and HTTP header', 'redirection' );
+	}
+
+	public function save( array $details, $no_target_url = false ) {
+		$data = array(
+			'regex' => isset( $details['regex'] ) && $details['regex'] ? true : false,
+			'name'  => isset( $details['name'] ) ? $this->sanitize_name( $details['name'] ) : '',
+			'value' => isset( $details['value'] ) ? $this->sanitize_value( $details['value'] ) : '',
+		);
+
+		return $this->save_data( $details, $no_target_url, $data );
+	}
+
+	public function sanitize_name( $name ) {
+		$name = $this->sanitize_url( $name );
+		$name = str_replace( ' ', '', $name );
+		$name = preg_replace( '/[^A-Za-z0-9\-_]/', '', $name );
+
+		return trim( trim( $name, ':' ) );
+	}
+
+	public function sanitize_value( $value ) {
+		return $this->sanitize_url( $value );
+	}
+
+	public function is_match( $url ) {
+		if ( $this->regex ) {
+			$regex = new Red_Regex( $this->value, true );
+			return $regex->is_match( Redirection_Request::get_header( $this->name ) );
+		}
+
+		return Redirection_Request::get_header( $this->name ) === $this->value;
+	}
+
+	public function get_data() {
+		return array_merge( array(
+			'regex' => $this->regex,
+			'name' => $this->name,
+			'value' => $this->value,
+		), $this->get_from_data() );
+	}
+
+	public function load( $values ) {
+		$values = $this->load_data( $values );
+		$this->regex = isset( $values['regex'] ) ? $values['regex'] : false;
+		$this->name = isset( $values['name'] ) ? $values['name'] : '';
+		$this->value = isset( $values['value'] ) ? $values['value'] : '';
+	}
+}

wp-content/plugins/redirection/matches/ip.php

@@ -0,0 +1,60 @@
+<?php
+
+class IP_Match extends Red_Match {
+	use FromNotFrom_Match;
+
+	public $ip = [];
+
+	public function name() {
+		return __( 'URL and IP', 'redirection' );
+	}
+
+	public function save( array $details, $no_target_url = false ) {
+		$data = array( 'ip' => isset( $details['ip'] ) && is_array( $details['ip'] ) ? $this->sanitize_ips( $details['ip'] ) : [] );
+
+		return $this->save_data( $details, $no_target_url, $data );
+	}
+
+	private function sanitize_single_ip( $ip ) {
+		$ip = @inet_pton( trim( $ip ) );
+		if ( $ip !== false ) {
+			return @inet_ntop( $ip );  // Convert back to string
+		}
+
+		return false;
+	}
+
+	private function sanitize_ips( $ips ) {
+		if ( is_array( $ips ) ) {
+			$ips = array_map( array( $this, 'sanitize_single_ip' ), $ips );
+			return array_values( array_filter( array_unique( $ips ) ) );
+		}
+
+		return array();
+	}
+
+	private function get_matching_ips( $match_ip ) {
+		$current_ip = @inet_pton( $match_ip );
+
+		return array_filter( $this->ip, function( $ip ) use ( $current_ip ) {
+			return @inet_pton( $ip ) === $current_ip;
+		} );
+	}
+
+	public function is_match( $url ) {
+		$matched = $this->get_matching_ips( Redirection_Request::get_ip() );
+
+		return count( $matched ) > 0;
+	}
+
+	public function get_data() {
+		return array_merge( array(
+			'ip' => $this->ip,
+		), $this->get_from_data() );
+	}
+
+	public function load( $values ) {
+		$values = $this->load_data( $values );
+		$this->ip = isset( $values['ip'] ) ? $values['ip'] : [];
+	}
+}

wp-content/plugins/redirection/matches/login.php

@@ -0,0 +1,54 @@
+<?php
+
+class Login_Match extends Red_Match {
+	public $logged_in;
+	public $logged_out;
+
+	public function name() {
+		return __( 'URL and login status', 'redirection' );
+	}
+
+	public function save( array $details, $no_target_url = false ) {
+		if ( $no_target_url ) {
+			return null;
+		}
+
+		return array(
+			'logged_in' => isset( $details['logged_in'] ) ? $this->sanitize_url( $details['logged_in'] ) : '',
+			'logged_out' => isset( $details['logged_out'] ) ? $this->sanitize_url( $details['logged_out'] ) : '',
+		);
+	}
+
+	public function is_match( $url ) {
+		return is_user_logged_in();
+	}
+
+	public function get_target_url( $requested_url, $source_url, Red_Source_Flags $flags, $match ) {
+		$target = false;
+
+		if ( $match && $this->logged_in !== '' ) {
+			$target = $this->logged_in;
+		} elseif ( ! $match && $this->logged_out !== '' ) {
+			$target = $this->logged_out;
+		}
+
+		if ( $flags->is_regex() && $target ) {
+			$target = $this->get_target_regex_url( $source_url, $target, $requested_url, $flags );
+		}
+
+		return $target;
+	}
+
+	public function get_data() {
+		return array(
+			'logged_in' => $this->logged_in,
+			'logged_out' => $this->logged_out,
+		);
+	}
+
+	public function load( $values ) {
+		$values = unserialize( $values );
+		$this->logged_in = isset( $values['logged_in'] ) ? $values['logged_in'] : '';
+		$this->logged_out = isset( $values['logged_out'] ) ? $values['logged_out'] : '';
+	}
+}

wp-content/plugins/redirection/matches/page.php

@@ -0,0 +1,36 @@
+<?php
+
+class Page_Match extends Red_Match {
+	use FromUrl_Match;
+
+	public $page;
+
+	public function name() {
+		return __( 'URL and WordPress page type', 'redirection' );
+	}
+
+	public function save( array $details, $no_target_url = false ) {
+		$data = array( 'page' => isset( $details['page'] ) ? $this->sanitize_page( $details['page'] ) : '404' );
+
+		return $this->save_data( $details, $no_target_url, $data );
+	}
+
+	private function sanitize_page( $page ) {
+		return '404';
+	}
+
+	public function is_match( $url ) {
+		return is_404();
+	}
+
+	public function get_data() {
+		return array_merge( array(
+			'page' => $this->page,
+		), $this->get_from_data() );
+	}
+
+	public function load( $values ) {
+		$values = $this->load_data( $values );
+		$this->page = isset( $values['page'] ) ? $values['page'] : '404';
+	}
+}

wp-content/plugins/redirection/matches/referrer.php

@@ -0,0 +1,47 @@
+<?php
+
+class Referrer_Match extends Red_Match {
+	use FromNotFrom_Match;
+
+	public $referrer;
+	public $regex;
+
+	public function name() {
+		return __( 'URL and referrer', 'redirection' );
+	}
+
+	public function save( array $details, $no_target_url = false ) {
+		$data = array(
+			'regex'    => isset( $details['regex'] ) && $details['regex'] ? true : false,
+			'referrer' => isset( $details['referrer'] ) ? $this->sanitize_referrer( $details['referrer'] ) : '',
+		);
+
+		return $this->save_data( $details, $no_target_url, $data );
+	}
+
+	public function sanitize_referrer( $agent ) {
+		return $this->sanitize_url( $agent );
+	}
+
+	public function is_match( $url ) {
+		if ( $this->regex ) {
+			$regex = new Red_Regex( $this->referrer, true );
+			return $regex->is_match( Redirection_Request::get_referrer() );
+		}
+
+		return Redirection_Request::get_referrer() === $this->referrer;
+	}
+
+	public function get_data() {
+		return array_merge( array(
+			'regex' => $this->regex,
+			'referrer' => $this->referrer,
+		), $this->get_from_data() );
+	}
+
+	public function load( $values ) {
+		$values = $this->load_data( $values );
+		$this->regex = isset( $values['regex'] ) ? $values['regex'] : false;
+		$this->referrer = isset( $values['referrer'] ) ? $values['referrer'] : '';
+	}
+}

wp-content/plugins/redirection/matches/server.php

@@ -0,0 +1,48 @@
+<?php
+
+class Server_Match extends Red_Match {
+	use FromNotFrom_Match;
+
+	public $server;
+
+	public function name() {
+		return __( 'URL and server', 'redirection' );
+	}
+
+	public function save( array $details, $no_target_url = false ) {
+		$data = array( 'server' => isset( $details['server'] ) ? $this->sanitize_server( $details['server'] ) : '' );
+
+		return $this->save_data( $details, $no_target_url, $data );
+	}
+
+	private function sanitize_server( $server ) {
+		if ( strpos( $server, 'http' ) === false ) {
+			$server = ( is_ssl() ? 'https://' : 'http://' ) . $server;
+		}
+
+		$parts = wp_parse_url( $server );
+
+		if ( isset( $parts['host'] ) ) {
+			return $parts['scheme'] . '://' . $parts['host'];
+		}
+
+		return '';
+	}
+
+	public function is_match( $url ) {
+		$server = wp_parse_url( $this->server, PHP_URL_HOST );
+
+		return $server === Redirection_Request::get_server_name();
+	}
+
+	public function get_data() {
+		return array_merge( array(
+			'server' => $this->server,
+		), $this->get_from_data() );
+	}
+
+	public function load( $values ) {
+		$values = $this->load_data( $values );
+		$this->server = isset( $values['server'] ) ? $values['server'] : '';
+	}
+}

wp-content/plugins/redirection/matches/url.php

@@ -0,0 +1,50 @@
+<?php
+
+class URL_Match extends Red_Match {
+	public $url = false;
+
+	public function name() {
+		return __( 'URL only', 'redirection' );
+	}
+
+	public function save( array $details, $no_target_url = false ) {
+		$data = isset( $details['url'] ) ? $details['url'] : '';
+
+		if ( strlen( $data ) === 0 ) {
+			$data = '/';
+		}
+
+		if ( $no_target_url ) {
+			return null;
+		}
+
+		return $this->sanitize_url( $data );
+	}
+
+	public function is_match( $url ) {
+		return true;
+	}
+
+	public function get_target_url( $requested_url, $source_url, Red_Source_Flags $flags, $matched ) {
+		$target = $this->url;
+		if ( $flags->is_regex() ) {
+			$target = $this->get_target_regex_url( $source_url, $target, $requested_url, $flags );
+		}
+
+		return $target;
+	}
+
+	public function get_data() {
+		if ( $this->url ) {
+			return array(
+				'url' => $this->url,
+			);
+		}
+
+		return '';
+	}
+
+	public function load( $values ) {
+		$this->url = $values;
+	}
+}

wp-content/plugins/redirection/matches/user-agent.php

@@ -0,0 +1,47 @@
+<?php
+
+class Agent_Match extends Red_Match {
+	use FromNotFrom_Match;
+
+	public $agent;
+	public $regex;
+
+	public function name() {
+		return __( 'URL and user agent', 'redirection' );
+	}
+
+	public function save( array $details, $no_target_url = false ) {
+		$data = array(
+			'regex' => isset( $details['regex'] ) && $details['regex'] ? true : false,
+			'agent' => isset( $details['agent'] ) ? $this->sanitize_agent( $details['agent'] ) : '',
+		);
+
+		return $this->save_data( $details, $no_target_url, $data );
+	}
+
+	private function sanitize_agent( $agent ) {
+		return $this->sanitize_url( $agent );
+	}
+
+	public function is_match( $url ) {
+		if ( $this->regex ) {
+			$regex = new Red_Regex( $this->agent, true );
+			return $regex->is_match( Redirection_Request::get_user_agent() );
+		}
+
+		return $this->agent === Redirection_Request::get_user_agent();
+	}
+
+	public function get_data() {
+		return array_merge( array(
+			'regex' => $this->regex,
+			'agent' => $this->agent,
+		), $this->get_from_data() );
+	}
+
+	public function load( $values ) {
+		$values = $this->load_data( $values );
+		$this->regex = isset( $values['regex'] ) ? $values['regex'] : false;
+		$this->agent = isset( $values['agent'] ) ? $values['agent'] : '';
+	}
+}

wp-content/plugins/redirection/matches/user-role.php

@@ -0,0 +1,32 @@
+<?php
+
+class Role_Match extends Red_Match {
+	use FromNotFrom_Match;
+
+	public $role;
+
+	public function name() {
+		return __( 'URL and role/capability', 'redirection' );
+	}
+
+	public function save( array $details, $no_target_url = false ) {
+		$data = array( 'role' => isset( $details['role'] ) ? $details['role'] : '' );
+
+		return $this->save_data( $details, $no_target_url, $data );
+	}
+
+	public function is_match( $url ) {
+		return current_user_can( $this->role );
+	}
+
+	public function get_data() {
+		return array_merge( array(
+			'role' => $this->role,
+		), $this->get_from_data() );
+	}
+
+	public function load( $values ) {
+		$values = $this->load_data( $values );
+		$this->role = isset( $values['role'] ) ? $values['role'] : '';
+	}
+}

wp-content/plugins/redirection/models/action.php

@@ -0,0 +1,58 @@
+<?php
+
+abstract class Red_Action {
+	protected $code;
+	protected $type;
+
+	function __construct( $values ) {
+		if ( is_array( $values ) ) {
+			foreach ( $values as $key => $value ) {
+				$this->$key = $value;
+			}
+		}
+	}
+
+	static function create( $name, $code ) {
+		$avail = self::available();
+
+		if ( isset( $avail[ $name ] ) ) {
+			if ( ! class_exists( strtolower( $avail[ $name ][1] ) ) ) {
+				include_once dirname( __FILE__ ) . '/../actions/' . $avail[ $name ][0];
+			}
+
+			$obj = new $avail[ $name ][1]( array( 'code' => $code ) );
+			$obj->type = $name;
+			return $obj;
+		}
+
+		return false;
+	}
+
+	static function available() {
+		return array(
+			'url'     => array( 'url.php', 'Url_Action' ),
+			'error'   => array( 'error.php', 'Error_Action' ),
+			'nothing' => array( 'nothing.php', 'Nothing_Action' ),
+			'random'  => array( 'random.php', 'Random_Action' ),
+			'pass'    => array( 'pass.php', 'Pass_Action' ),
+		);
+	}
+
+	public function process_before( $code, $target ) {
+		return $target;
+	}
+
+	public function process_after( $code, $target ) {
+		return true;
+	}
+
+	public function get_code() {
+		return $this->code;
+	}
+
+	public function get_type() {
+		return $this->type;
+	}
+
+	abstract public function needs_target();
+}

wp-content/plugins/redirection/models/file-io.php

@@ -0,0 +1,101 @@
+<?php
+
+abstract class Red_FileIO {
+	public static function create( $type ) {
+		$exporter = false;
+
+		if ( $type === 'rss' ) {
+			include_once dirname( dirname( __FILE__ ) ) . '/fileio/rss.php';
+			$exporter = new Red_Rss_File();
+		} elseif ( $type === 'csv' ) {
+			include_once dirname( dirname( __FILE__ ) ) . '/fileio/csv.php';
+			$exporter = new Red_Csv_File();
+		} elseif ( $type === 'apache' ) {
+			include_once dirname( dirname( __FILE__ ) ) . '/fileio/apache.php';
+			$exporter = new Red_Apache_File();
+		} elseif ( $type === 'nginx' ) {
+			include_once dirname( dirname( __FILE__ ) ) . '/fileio/nginx.php';
+			$exporter = new Red_Nginx_File();
+		} elseif ( $type === 'json' ) {
+			include_once dirname( dirname( __FILE__ ) ) . '/fileio/json.php';
+			$exporter = new Red_Json_File();
+		}
+
+		return $exporter;
+	}
+
+	public static function import( $group_id, $file ) {
+		$parts = pathinfo( $file['name'] );
+		$extension = isset( $parts['extension'] ) ? $parts['extension'] : '';
+		$extension = strtolower( $extension );
+
+		if ( $extension === 'csv' ) {
+			include_once dirname( dirname( __FILE__ ) ) . '/fileio/csv.php';
+			$importer = new Red_Csv_File();
+			$data = '';
+		} elseif ( $extension === 'json' ) {
+			include_once dirname( dirname( __FILE__ ) ) . '/fileio/json.php';
+			$importer = new Red_Json_File();
+			$data = @file_get_contents( $file['tmp_name'] );
+		} else {
+			include_once dirname( dirname( __FILE__ ) ) . '/fileio/apache.php';
+			$importer = new Red_Apache_File();
+			$data = @file_get_contents( $file['tmp_name'] );
+		}
+
+		if ( $extension !== 'json' ) {
+			$group = Red_Group::get( $group_id );
+			if ( ! $group ) {
+				return false;
+			}
+		}
+
+		return $importer->load( $group_id, $file['tmp_name'], $data );
+	}
+
+	public function force_download() {
+		header( 'Cache-Control: no-cache, must-revalidate' );
+		header( 'Expires: Mon, 26 Jul 1997 05:00:00 GMT' );
+	}
+
+	protected function export_filename( $extension ) {
+		$name = wp_parse_url( home_url(), PHP_URL_HOST );
+		$name = str_replace( '.', '-', $name );
+		$date = strtolower( date_i18n( get_option( 'date_format' ) ) );
+		$date = str_replace( [ ',', ' ', '--' ], '-', $date );
+
+		return 'redirection-' . $name . '-' . $date . '.' . $extension;
+	}
+
+	public static function export( $module_name_or_id, $format ) {
+		$groups = false;
+		$items = false;
+
+		if ( $module_name_or_id === 'all' || $module_name_or_id === 0 ) {
+			$groups = Red_Group::get_all();
+			$items = Red_Item::get_all();
+		} else {
+			$module_name_or_id = is_numeric( $module_name_or_id ) ? $module_name_or_id : Red_Module::get_id_for_name( $module_name_or_id );
+			$module = Red_Module::get( intval( $module_name_or_id, 10 ) );
+
+			if ( $module ) {
+				$groups = Red_Group::get_all_for_module( $module->get_id() );
+				$items = Red_Item::get_all_for_module( $module->get_id() );
+			}
+		}
+
+		$exporter = self::create( $format );
+		if ( $exporter && $items !== false && $groups !== false ) {
+			return array(
+				'data' => $exporter->get_data( $items, $groups ),
+				'total' => count( $items ),
+				'exporter' => $exporter,
+			);
+		}
+
+		return false;
+	}
+
+	abstract function get_data( array $items, array $groups );
+	abstract function load( $group, $filename, $data );
+}

wp-content/plugins/redirection/models/fixer.php

@@ -0,0 +1,164 @@
+<?php
+
+include_once dirname( REDIRECTION_FILE ) . '/database/database.php';
+
+class Red_Fixer {
+	public function get_json() {
+		return [
+			'status' => $this->get_status(),
+			'debug' => $this->get_debug(),
+		];
+	}
+
+	public function get_debug() {
+		$status = new Red_Database_Status();
+
+		return [
+			'database' => [
+				'current' => $status->get_current_version(),
+				'latest' => REDIRECTION_DB_VERSION,
+			],
+			'ip_header' => [
+				'HTTP_CF_CONNECTING_IP' => isset( $_SERVER['HTTP_CF_CONNECTING_IP'] ) ? $_SERVER['HTTP_CF_CONNECTING_IP'] : false,
+				'HTTP_X_FORWARDED_FOR' => isset( $_SERVER['HTTP_X_FORWARDED_FOR'] ) ? $_SERVER['HTTP_X_FORWARDED_FOR'] : false,
+				'REMOTE_ADDR' => isset( $_SERVER['REMOTE_ADDR'] ) ? $_SERVER['REMOTE_ADDR'] : false,
+			],
+		];
+	}
+
+	public function save_debug( $name, $value ) {
+		if ( $name === 'database' ) {
+			$database = new Red_Database();
+			$status = new Red_Database_Status();
+
+			foreach ( $database->get_upgrades() as $upgrade ) {
+				if ( $value === $upgrade['version'] ) {
+					$status->finish();
+					$status->save_db_version( $value );
+					break;
+				}
+			}
+		}
+	}
+
+	public function get_status() {
+		global $wpdb;
+
+		$options = red_get_options();
+
+		$groups = intval( $wpdb->get_var( "SELECT COUNT(*) FROM {$wpdb->prefix}redirection_groups" ), 10 );
+		$bad_group = $this->get_missing();
+		$monitor_group = $options['monitor_post'];
+		$valid_monitor = Red_Group::get( $monitor_group ) || $monitor_group === 0;
+
+		return [
+			array_merge( [
+				'id' => 'db',
+				'name' => __( 'Database tables', 'redirection' ),
+			], $this->get_database_status( Red_Database::get_latest_database() ) ),
+			[
+				'name' => __( 'Valid groups', 'redirection' ),
+				'id' => 'groups',
+				'message' => $groups === 0 ? __( 'No valid groups, so you will not be able to create any redirects', 'redirection' ) : __( 'Valid groups detected', 'redirection' ),
+				'status' => $groups === 0 ? 'problem' : 'good',
+			],
+			[
+				'name' => __( 'Valid redirect group', 'redirection' ),
+				'id' => 'redirect_groups',
+				'message' => count( $bad_group ) > 0 ? __( 'Redirects with invalid groups detected', 'redirection' ) : __( 'All redirects have a valid group', 'redirection' ),
+				'status' => count( $bad_group ) > 0 ? 'problem' : 'good',
+			],
+			[
+				'name' => __( 'Post monitor group', 'redirection' ),
+				'id' => 'monitor',
+				'message' => $valid_monitor === false ? __( 'Post monitor group is invalid', 'redirection' ) : __( 'Post monitor group is valid', 'redirection' ),
+				'status' => $valid_monitor === false ? 'problem' : 'good',
+			],
+			$this->get_http_settings(),
+		];
+	}
+
+	private function get_database_status( $database ) {
+		$missing = $database->get_missing_tables();
+
+		return array(
+			'status' => count( $missing ) === 0 ? 'good' : 'error',
+			'message' => count( $missing ) === 0 ? __( 'All tables present', 'redirection' ) : __( 'The following tables are missing:', 'redirection' ) . ' ' . join( ',', $missing ),
+		);
+	}
+
+	private function get_http_settings() {
+		$site = wp_parse_url( get_site_url(), PHP_URL_SCHEME );
+		$home = wp_parse_url( get_home_url(), PHP_URL_SCHEME );
+
+		$message = __( 'Site and home are consistent', 'redirection' );
+		if ( $site !== $home ) {
+			/* translators: 1: Site URL, 2: Home URL */
+			$message = sprintf( __( 'Site and home URL are inconsistent. Please correct from your Settings > General page: %1$1s is not %2$2s', 'redirection' ), get_site_url(), get_home_url() );
+		}
+
+		return array(
+			'name' => __( 'Site and home protocol', 'redirection' ),
+			'id' => 'redirect_url',
+			'message' => $message,
+			'status' => $site === $home ? 'good' : 'problem',
+		);
+	}
+
+	public function fix( $status ) {
+		foreach ( $status as $item ) {
+			if ( $item['status'] !== 'good' ) {
+				$fixer = 'fix_' . $item['id'];
+
+				if ( method_exists( $this, $fixer ) ) {
+					$result = $this->$fixer();
+				}
+
+				if ( is_wp_error( $result ) ) {
+					return $result;
+				}
+			}
+		}
+
+		return $this->get_status();
+	}
+
+	private function get_missing() {
+		global $wpdb;
+
+		return $wpdb->get_results( "SELECT {$wpdb->prefix}redirection_items.id FROM {$wpdb->prefix}redirection_items LEFT JOIN {$wpdb->prefix}redirection_groups ON {$wpdb->prefix}redirection_items.group_id = {$wpdb->prefix}redirection_groups.id WHERE {$wpdb->prefix}redirection_groups.id IS NULL" );
+	}
+
+	private function fix_db() {
+		$database = Red_Database::get_latest_database();
+		return $database->install();
+	}
+
+	private function fix_groups() {
+		if ( Red_Group::create( 'new group', 1 ) === false ) {
+			return new WP_Error( __( 'Unable to create group', 'redirection' ) );
+		}
+
+		return true;
+	}
+
+	private function fix_redirect_groups() {
+		global $wpdb;
+
+		$missing = $this->get_missing();
+
+		foreach ( $missing as $row ) {
+			$wpdb->update( $wpdb->prefix . 'redirection_items', array( 'group_id' => $this->get_valid_group() ), array( 'id' => $row->id ) );
+		}
+	}
+
+	private function fix_monitor() {
+		red_set_options( array( 'monitor_post' => $this->get_valid_group() ) );
+	}
+
+	private function get_valid_group() {
+		$groups = Red_Group::get_all();
+
+		return $groups[0]['id'];
+	}
+}

wp-content/plugins/redirection/models/flusher.php

@@ -0,0 +1,69 @@
+<?php
+
+class Red_Flusher {
+	const DELETE_HOOK = 'redirection_log_delete';
+	const DELETE_FREQ = 'daily';
+	const DELETE_MAX = 3000;
+	const DELETE_KEEP_ON = 10;  // 10 minutes
+
+	public function flush() {
+		$options = red_get_options();
+
+		$total  = $this->expire_logs( 'redirection_logs', $options['expire_redirect'] );
+		$total += $this->expire_logs( 'redirection_404', $options['expire_404'] );
+
+		if ( $total >= self::DELETE_MAX ) {
+			$next = time() + ( self::DELETE_KEEP_ON * 60 );
+
+			// There are still more logs to clear - keep on doing until we're clean or until the next normal event
+			if ( $next < wp_next_scheduled( self::DELETE_HOOK ) ) {
+				wp_schedule_single_event( $next, self::DELETE_HOOK );
+			}
+		}
+
+		$this->optimize_logs();
+	}
+
+	private function optimize_logs() {
+		global $wpdb;
+
+		$rand = wp_rand( 1, 5000 );
+
+		if ( $rand === 11 ) {
+			$wpdb->query( "OPTIMIZE TABLE {$wpdb->prefix}redirection_logs" );
+		} elseif ( $rand === 12 ) {
+			$wpdb->query( "OPTIMIZE TABLE {$wpdb->prefix}redirection_404" );
+		}
+	}
+
+	private function expire_logs( $table, $expiry_time ) {
+		global $wpdb;
+
+		if ( $expiry_time > 0 ) {
+			$logs = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM {$wpdb->prefix}{$table} WHERE created < DATE_SUB(NOW(), INTERVAL %d DAY)", $expiry_time ) );
+
+			if ( $logs > 0 ) {
+				$wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->prefix}{$table} WHERE created < DATE_SUB(NOW(), INTERVAL %d DAY) LIMIT %d", $expiry_time, self::DELETE_MAX ) );
+				return min( self::DELETE_MAX, $logs );
+			}
+		}
+
+		return 0;
+	}
+
+	public static function schedule() {
+		$options = red_get_options();
+
+		if ( $options['expire_redirect'] > 0 || $options['expire_404'] > 0 ) {
+			if ( ! wp_next_scheduled( self::DELETE_HOOK ) ) {
+				wp_schedule_event( time(), self::DELETE_FREQ, self::DELETE_HOOK );
+			}
+		} else {
+			Red_Flusher::clear();
+		}
+	}
+
+	public static function clear() {
+		wp_clear_scheduled_hook( self::DELETE_HOOK );
+	}
+}

wp-content/plugins/redirection/models/group.php

@@ -0,0 +1,255 @@
+<?php
+
+class Red_Group {
+	private $items = 0;
+	private $name;
+	private $module_id;
+	private $status;
+	private $position;
+
+	public function __construct( $values = '' ) {
+		if ( is_object( $values ) ) {
+			$this->name = $values->name;
+			$this->module_id = intval( $values->module_id, 10 );
+			$this->status = $values->status;
+			$this->id = intval( $values->id, 10 );
+			$this->position = intval( $values->position, 10 );
+		}
+	}
+
+	public function get_name() {
+		return $this->name;
+	}
+
+	public function get_id() {
+		return $this->id;
+	}
+
+	public function is_enabled() {
+		return $this->status === 'enabled' ? true : false;
+	}
+
+	static function get( $id ) {
+		global $wpdb;
+
+		$row = $wpdb->get_row( $wpdb->prepare( "SELECT {$wpdb->prefix}redirection_groups.*,COUNT( {$wpdb->prefix}redirection_items.id ) AS items,SUM( {$wpdb->prefix}redirection_items.last_count ) AS redirects FROM {$wpdb->prefix}redirection_groups LEFT JOIN {$wpdb->prefix}redirection_items ON {$wpdb->prefix}redirection_items.group_id={$wpdb->prefix}redirection_groups.id WHERE {$wpdb->prefix}redirection_groups.id=%d GROUP BY {$wpdb->prefix}redirection_groups.id", $id ) );
+		if ( $row ) {
+			return new Red_Group( $row );
+		}
+
+		return false;
+	}
+
+	static function get_all() {
+		global $wpdb;
+
+		$data = array();
+		$rows = $wpdb->get_results( "SELECT * FROM {$wpdb->prefix}redirection_groups" );
+
+		if ( $rows ) {
+			foreach ( $rows as $row ) {
+				$group = new Red_Group( $row );
+				$data[] = $group->to_json();
+			}
+		}
+
+		return $data;
+	}
+
+	static function get_all_for_module( $module_id ) {
+		global $wpdb;
+
+		$data = array();
+		$rows = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM {$wpdb->prefix}redirection_groups WHERE module_id=%d", $module_id ) );
+
+		if ( $rows ) {
+			foreach ( $rows as $row ) {
+				$group = new Red_Group( $row );
+				$data[] = $group->to_json();
+			}
+		}
+
+		return $data;
+	}
+
+	static function get_for_select() {
+		global $wpdb;
+
+		$data = array();
+		$rows = $wpdb->get_results( "SELECT * FROM {$wpdb->prefix}redirection_groups" );
+
+		if ( $rows ) {
+			foreach ( $rows as $row ) {
+				$module = Red_Module::get( $row->module_id );
+				if ( $module ) {
+					$data[ $module->get_name() ][ intval( $row->id, 10 ) ] = $row->name;
+				}
+			}
+		}
+
+		return $data;
+	}
+
+	static function create( $name, $module_id, $enabled = true ) {
+		global $wpdb;
+
+		$name = trim( substr( $name, 0, 50 ) );
+		$module_id = intval( $module_id, 10 );
+
+		if ( $name !== '' && Red_Module::is_valid_id( $module_id ) ) {
+			$position = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT( * ) FROM {$wpdb->prefix}redirection_groups WHERE module_id=%d", $module_id ) );
+
+			$data = array(
+				'name'      => trim( $name ),
+				'module_id' => intval( $module_id ),
+				'position'  => intval( $position ),
+				'status'    => $enabled ? 'enabled' : 'disabled',
+			);
+
+			$wpdb->insert( $wpdb->prefix . 'redirection_groups', $data );
+
+			return Red_Group::get( $wpdb->insert_id );
+		}
+
+		return false;
+	}
+
+	public function update( $data ) {
+		global $wpdb;
+
+		$old_id = $this->module_id;
+		$this->name = trim( wp_kses( $data['name'], array() ) );
+
+		if ( Red_Module::is_valid_id( intval( $data['moduleId'], 10 ) ) ) {
+			$this->module_id = intval( $data['moduleId'], 10 );
+		}
+
+		$wpdb->update( $wpdb->prefix . 'redirection_groups', array( 'name' => $this->name, 'module_id' => $this->module_id ), array( 'id' => intval( $this->id ) ) );
+
+		if ( $old_id !== $this->module_id ) {
+			Red_Module::flush_by_module( $old_id );
+			Red_Module::flush_by_module( $this->module_id );
+		}
+
+		return true;
+	}
+
+	public function delete() {
+		global $wpdb;
+
+		// Delete all items in this group
+		$wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->prefix}redirection_items WHERE group_id=%d", $this->id ) );
+
+		Red_Module::flush( $this->id );
+
+		// Delete the group
+		$wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->prefix}redirection_groups WHERE id=%d", $this->id ) );
+
+		if ( $wpdb->get_var( "SELECT COUNT(*) FROM {$wpdb->prefix}redirection_groups" ) === 0 ) {
+			$wpdb->insert( $wpdb->prefix . 'redirection_groups', array( 'name' => __( 'Redirections' ), 'module_id' => 1, 'position' => 0 ) );
+		}
+	}
+
+	public function get_total_redirects() {
+		global $wpdb;
+
+		return intval( $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM {$wpdb->prefix}redirection_items WHERE group_id=%d", $this->id ) ), 10 );
+	}
+
+	public function enable() {
+		global $wpdb;
+
+		$wpdb->update( $wpdb->prefix . 'redirection_groups', array( 'status' => 'enabled' ), array( 'id' => $this->id ) );
+		$wpdb->update( $wpdb->prefix . 'redirection_items', array( 'status' => 'enabled' ), array( 'group_id' => $this->id ) );
+
+		Red_Module::flush( $this->id );
+	}
+
+	public function disable() {
+		global $wpdb;
+
+		$wpdb->update( $wpdb->prefix . 'redirection_groups', array( 'status' => 'disabled' ), array( 'id' => $this->id ) );
+		$wpdb->update( $wpdb->prefix . 'redirection_items', array( 'status' => 'disabled' ), array( 'group_id' => $this->id ) );
+
+		Red_Module::flush( $this->id );
+	}
+
+	public function get_module_id() {
+		return $this->module_id;
+	}
+
+	public static function get_filtered( array $params ) {
+		global $wpdb;
+
+		$orderby = 'id';
+		$direction = 'DESC';
+		$limit = RED_DEFAULT_PER_PAGE;
+		$offset = 0;
+		$where = '';
+
+		if ( isset( $params['orderby'] ) && in_array( $params['orderby'], array( 'name' ), true ) ) {
+			$orderby = $params['orderby'];
+		}
+
+		if ( isset( $params['direction'] ) && in_array( $params['direction'], array( 'asc', 'desc' ), true ) ) {
+			$direction = strtoupper( $params['direction'] );
+		}
+
+		if ( isset( $params['filter'] ) && strlen( $params['filter'] ) > 0 ) {
+			if ( isset( $params['filterBy'] ) && $params['filterBy'] === 'module' ) {
+				$where = $wpdb->prepare( 'WHERE module_id=%d', intval( $params['filter'], 10 ) );
+			} else {
+				$where = $wpdb->prepare( 'WHERE name LIKE %s', '%' . $wpdb->esc_like( trim( $params['filter'] ) ) . '%' );
+			}
+		}
+
+		if ( isset( $params['per_page'] ) ) {
+			$limit = intval( $params['per_page'], 10 );
+			$limit = min( RED_MAX_PER_PAGE, $limit );
+			$limit = max( 5, $limit );
+		}
+
+		if ( isset( $params['page'] ) ) {
+			$offset = intval( $params['page'], 10 );
+			$offset = max( 0, $offset );
+			$offset *= $limit;
+		}
+
+		$rows = $wpdb->get_results(
+			"SELECT * FROM {$wpdb->prefix}redirection_groups $where " . $wpdb->prepare( "ORDER BY $orderby $direction LIMIT %d,%d", $offset, $limit )
+		);
+		$total_items = intval( $wpdb->get_var( "SELECT COUNT(*) FROM {$wpdb->prefix}redirection_groups " . $where ) );
+		$items = array();
+
+		$options = red_get_options();
+
+		foreach ( $rows as $row ) {
+			$group = new Red_Group( $row );
+			$group_json = $group->to_json();
+
+			if ( $group->get_id() === $options['last_group_id'] ) {
+				$group_json['default'] = true;
+			}
+
+			$items[] = $group_json;
+		}
+
+		return array(
+			'items' => $items,
+			'total' => intval( $total_items, 10 ),
+		);
+	}
+
+	public function to_json() {
+		$module = Red_Module::get( $this->get_module_id() );
+
+		return array(
+			'id' => $this->get_id(),
+			'name' => $this->get_name(),
+			'redirects' => $this->get_total_redirects(),
+			'module_id' => $this->get_module_id(),
+			'moduleName' => $module ? $module->get_name() : '',
+			'enabled' => $this->is_enabled(),
+		);
+	}
+}