WordPress/wp-admin/includes/class-wp-importer.php

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<?php
/**
* WP_Importer base class
*/
Code Modernization: Add `AllowDynamicProperties` attribute to all (parent) classes. Dynamic (non-explicitly declared) properties are deprecated as of PHP 8.2 and are expected to become a fatal error in PHP 9.0. There are a number of ways to mitigate this: * If it is an accidental typo for a declared property: fix the typo. * For known properties: declare them on the class. * For unknown properties: add the magic `__get()`, `__set()`, et al. methods to the class or let the class extend `stdClass` which has highly optimized versions of these magic methods built in. * For unknown ''use'' of dynamic properties, the `#[AllowDynamicProperties]` attribute can be added to the class. The attribute will automatically be inherited by child classes. Trac ticket #56034 is open to investigate and handle the third and fourth type of situations, however it has become clear this will need more time and will not be ready in time for WP 6.1. To reduce “noise” in the meantime, both in the error logs of WP users moving onto PHP 8.2, in the test run logs of WP itself, in test runs of plugins and themes, as well as to prevent duplicate tickets from being opened for the same issue, this commit adds the `#[AllowDynamicProperties]` attribute to all “parent” classes in WP. The logic used for this commit is as follows: * If a class already has the attribute: no action needed. * If a class does not `extend`: add the attribute. * If a class does `extend`: - If it extends `stdClass`: no action needed (as `stdClass` supports dynamic properties). - If it extends a PHP native class: add the attribute. - If it extends a class from one of WP's external dependencies: add the attribute. * In all other cases: no action — the attribute should not be needed as child classes inherit from the parent. Whether or not a class contains magic methods has not been taken into account, as a review of the currently existing magic methods has shown that those are generally not sturdy enough and often even set dynamic properties (which they should not). See the [https://www.youtube.com/watch?v=vDZWepDQQVE live stream from August 16, 2022] for more details. This commit only affects classes in the `src` directory of WordPress core. * Tests should not get this attribute, but should be fixed to not use dynamic properties instead. Patches for this are already being committed under ticket #56033. * While a number bundled themes (2014, 2019, 2020, 2021) contain classes, they are not a part of this commit and may be updated separately. Reference: [https://wiki.php.net/rfc/deprecate_dynamic_properties PHP RFC: Deprecate dynamic properties]. Follow-up to [53922]. Props jrf, hellofromTonya, markjaquith, peterwilsoncc, costdev, knutsp, aristath. See #56513, #56034. Built from https://develop.svn.wordpress.org/trunk@54133 git-svn-id: http://core.svn.wordpress.org/trunk@53692 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2022-09-12 17:47:14 +02:00
#[AllowDynamicProperties]
class WP_Importer {
/**
* Class Constructor
*/
public function __construct() {}
/**
* Returns array with imported permalinks from WordPress database.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $importer_name
* @param string $blog_id
* @return array
*/
public function get_imported_posts( $importer_name, $blog_id ) {
global $wpdb;
$hashtable = array();
$limit = 100;
$offset = 0;
// Grab all posts in chunks.
do {
$meta_key = $importer_name . '_' . $blog_id . '_permalink';
$sql = $wpdb->prepare( "SELECT post_id, meta_value FROM $wpdb->postmeta WHERE meta_key = %s LIMIT %d,%d", $meta_key, $offset, $limit );
$results = $wpdb->get_results( $sql );
// Increment offset.
$offset = ( $limit + $offset );
if ( ! empty( $results ) ) {
foreach ( $results as $r ) {
// Set permalinks into array.
$hashtable[ $r->meta_value ] = (int) $r->post_id;
}
}
} while ( count( $results ) === $limit );
return $hashtable;
}
/**
* Returns count of imported permalinks from WordPress database.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $importer_name
* @param string $blog_id
* @return int
*/
public function count_imported_posts( $importer_name, $blog_id ) {
global $wpdb;
$count = 0;
// Get count of permalinks.
$meta_key = $importer_name . '_' . $blog_id . '_permalink';
$sql = $wpdb->prepare( "SELECT COUNT( post_id ) AS cnt FROM $wpdb->postmeta WHERE meta_key = %s", $meta_key );
$result = $wpdb->get_results( $sql );
if ( ! empty( $result ) ) {
$count = (int) $result[0]->cnt;
}
return $count;
}
/**
* Sets array with imported comments from WordPress database.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $blog_id
* @return array
*/
public function get_imported_comments( $blog_id ) {
global $wpdb;
$hashtable = array();
$limit = 100;
$offset = 0;
// Grab all comments in chunks.
do {
$sql = $wpdb->prepare( "SELECT comment_ID, comment_agent FROM $wpdb->comments LIMIT %d,%d", $offset, $limit );
$results = $wpdb->get_results( $sql );
// Increment offset.
$offset = ( $limit + $offset );
if ( ! empty( $results ) ) {
foreach ( $results as $r ) {
// Explode comment_agent key.
list ( $comment_agent_blog_id, $source_comment_id ) = explode( '-', $r->comment_agent );
$source_comment_id = (int) $source_comment_id;
// Check if this comment came from this blog.
if ( (int) $blog_id === (int) $comment_agent_blog_id ) {
$hashtable[ $source_comment_id ] = (int) $r->comment_ID;
}
}
}
} while ( count( $results ) === $limit );
return $hashtable;
}
/**
* @param int $blog_id
* @return int|void
*/
public function set_blog( $blog_id ) {
if ( is_numeric( $blog_id ) ) {
$blog_id = (int) $blog_id;
} else {
$blog = 'http://' . preg_replace( '#^https?://#', '', $blog_id );
$parsed = parse_url( $blog );
if ( ! $parsed || empty( $parsed['host'] ) ) {
fwrite( STDERR, "Error: can not determine blog_id from $blog_id\n" );
exit;
}
if ( empty( $parsed['path'] ) ) {
$parsed['path'] = '/';
}
$blogs = get_sites(
array(
'domain' => $parsed['host'],
'number' => 1,
'path' => $parsed['path'],
)
);
if ( ! $blogs ) {
fwrite( STDERR, "Error: Could not find blog\n" );
exit;
}
$blog = array_shift( $blogs );
$blog_id = (int) $blog->blog_id;
}
if ( function_exists( 'is_multisite' ) ) {
if ( is_multisite() ) {
switch_to_blog( $blog_id );
}
}
return $blog_id;
}
/**
* @param int $user_id
* @return int|void
*/
public function set_user( $user_id ) {
if ( is_numeric( $user_id ) ) {
$user_id = (int) $user_id;
} else {
$user_id = (int) username_exists( $user_id );
}
if ( ! $user_id || ! wp_set_current_user( $user_id ) ) {
fwrite( STDERR, "Error: can not find user\n" );
exit;
}
return $user_id;
}
/**
* Sorts by strlen, longest string first.
*
* @param string $a
* @param string $b
* @return int
*/
public function cmpr_strlen( $a, $b ) {
return strlen( $b ) - strlen( $a );
}
/**
* Gets URL.
*
* @param string $url
* @param string $username
* @param string $password
* @param bool $head
* @return array
*/
public function get_page( $url, $username = '', $password = '', $head = false ) {
// Increase the timeout.
add_filter( 'http_request_timeout', array( $this, 'bump_request_timeout' ) );
$headers = array();
$args = array();
if ( true === $head ) {
$args['method'] = 'HEAD';
}
if ( ! empty( $username ) && ! empty( $password ) ) {
$headers['Authorization'] = 'Basic ' . base64_encode( "$username:$password" );
}
$args['headers'] = $headers;
return wp_safe_remote_request( $url, $args );
}
/**
* Bumps up the request timeout for http requests.
*
* @param int $val
* @return int
*/
public function bump_request_timeout( $val ) {
return 60;
}
/**
* Checks if user has exceeded disk quota.
*
* @return bool
*/
public function is_user_over_quota() {
if ( function_exists( 'upload_is_user_over_quota' ) ) {
if ( upload_is_user_over_quota() ) {
return true;
}
}
return false;
}
/**
* Replaces newlines, tabs, and multiple spaces with a single space.
*
* @param string $text
* @return string
*/
public function min_whitespace( $text ) {
return preg_replace( '|[\r\n\t ]+|', ' ', $text );
}
/**
* Resets global variables that grow out of control during imports.
*
* @since 3.0.0
*
* @global wpdb $wpdb WordPress database abstraction object.
* @global int[] $wp_actions
*/
public function stop_the_insanity() {
global $wpdb, $wp_actions;
// Or define( 'WP_IMPORTING', true );
$wpdb->queries = array();
// Reset $wp_actions to keep it from growing out of control.
$wp_actions = array();
}
}
/**
* Returns value of command line params.
* Exits when a required param is not set.
*
* @param string $param
* @param bool $required
* @return mixed
*/
function get_cli_args( $param, $required = false ) {
$args = $_SERVER['argv'];
if ( ! is_array( $args ) ) {
$args = array();
}
$out = array();
$last_arg = null;
$return = null;
$il = count( $args );
for ( $i = 1, $il; $i < $il; $i++ ) {
if ( (bool) preg_match( '/^--(.+)/', $args[ $i ], $match ) ) {
$parts = explode( '=', $match[1] );
$key = preg_replace( '/[^a-z0-9]+/', '', $parts[0] );
if ( isset( $parts[1] ) ) {
$out[ $key ] = $parts[1];
} else {
$out[ $key ] = true;
}
$last_arg = $key;
} elseif ( (bool) preg_match( '/^-([a-zA-Z0-9]+)/', $args[ $i ], $match ) ) {
for ( $j = 0, $jl = strlen( $match[1] ); $j < $jl; $j++ ) {
$key = $match[1][ $j ];
$out[ $key ] = true;
}
$last_arg = $key;
} elseif ( null !== $last_arg ) {
$out[ $last_arg ] = $args[ $i ];
}
}
// Check array for specified param.
if ( isset( $out[ $param ] ) ) {
// Set return value.
$return = $out[ $param ];
}
// Check for missing required param.
if ( ! isset( $out[ $param ] ) && $required ) {
// Display message and exit.
echo "\"$param\" parameter is required but was not specified\n";
exit;
}
return $return;
}