Event-Federation/wordpress-activitypub
Event-Federation/wordpress-activitypub
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WebFinger: Add support for URLs (#594)

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* add support for URLs

* phpcs

* simplify vars
This commit is contained in:
Matthias Pfefferle 2023-12-11 10:28:41 +01:00 committed by GitHub
parent e5fe4f20b7
commit 431c4a2676
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4 changed files with 142 additions and 23 deletions
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114
includes/collection/class-users.php
View file

@ -7,6 +7,7 @@ use Activitypub\Model\User;
use Activitypub\Model\Blog_User;
use Activitypub\Model\Application_User;
use function Activitypub\url_to_authorid;
use function Activitypub\is_user_disabled;
class Users {
@ -103,6 +104,8 @@ class Users {
return self::get_by_id( $user->results[0] );
}
$username = str_replace( array( '*', '%' ), '', $username );
// check for login or nicename.
$user = new WP_User_Query(
array(
@ -133,29 +136,79 @@ class Users {
* @return \Acitvitypub\Model\User The User.
*/
public static function get_by_resource( $resource ) {
if ( \strpos( $resource, '@' ) === false ) {
return new WP_Error(
'activitypub_unsupported_resource',
\__( 'Resource is invalid', 'activitypub' ),
array( 'status' => 400 )
);
$scheme = 'acct';
$match = array();
// try to extract the scheme and the host
if ( preg_match( '/^([a-zA-Z^:]+):(.*)$/i', $resource, $match ) ) {
// extract the scheme
$scheme = esc_attr( $match[1] );
}
$resource = \str_replace( 'acct:', '', $resource );
switch ( $scheme ) {
// check for http(s) URIs
case 'http':
case 'https':
$url_parts = wp_parse_url( $resource );
$resource_identifier = \substr( $resource, 0, \strrpos( $resource, '@' ) );
$resource_host = self::normalize_host( \substr( \strrchr( $resource, '@' ), 1 ) );
$blog_host = self::normalize_host( \wp_parse_url( \home_url( '/' ), \PHP_URL_HOST ) );
// check for http(s)://blog.example.com/@username
if (
isset( $url_parts['path'] ) &&
str_starts_with( $url_parts['path'], '/@' )
) {
$identifier = str_replace( '/@', '', $url_parts['path'] );
$identifier = untrailingslashit( $identifier );
if ( $blog_host !== $resource_host ) {
return new WP_Error(
'activitypub_wrong_host',
\__( 'Resource host does not match blog host', 'activitypub' ),
array( 'status' => 404 )
);
return self::get_by_username( $identifier );
}
// check for http(s)://blog.example.com/author/username
$user_id = url_to_authorid( $resource );
if ( $user_id ) {
return self::get_by_id( $user_id );
}
// check for http(s)://blog.example.com/
if (
self::normalize_url( site_url() ) === self::normalize_url( $resource ) ||
self::normalize_url( home_url() ) === self::normalize_url( $resource )
) {
return self::get_by_id( self::BLOG_USER_ID );
}
return new WP_Error(
'activitypub_no_user_found',
\__( 'User not found', 'activitypub' ),
array( 'status' => 404 )
);
// check for acct URIs
case 'acct':
$resource = \str_replace( 'acct:', '', $resource );
$identifier = \substr( $resource, 0, \strrpos( $resource, '@' ) );
$host = self::normalize_host( \substr( \strrchr( $resource, '@' ), 1 ) );
$blog_host = self::normalize_host( \wp_parse_url( \home_url( '/' ), \PHP_URL_HOST ) );
if ( $blog_host !== $host ) {
return new WP_Error(
'activitypub_wrong_host',
\__( 'Resource host does not match blog host', 'activitypub' ),
array( 'status' => 404 )
);
}
// prepare wildcards https://github.com/mastodon/mastodon/issues/22213
if ( in_array( $identifier, array( '_', '*', '' ), true ) ) {
return self::get_by_id( self::BLOG_USER_ID );
}
return self::get_by_username( $identifier );
default:
return new WP_Error(
'activitypub_wrong_scheme',
\__( 'Wrong scheme', 'activitypub' ),
array( 'status' => 404 )
);
}
return self::get_by_username( $resource_identifier );
}
/**
@ -168,7 +221,12 @@ class Users {
public static function get_by_various( $id ) {
if ( is_numeric( $id ) ) {
return self::get_by_id( $id );
} elseif ( filter_var( $id, FILTER_VALIDATE_URL ) ) {
} elseif (
// is URL
filter_var( $id, FILTER_VALIDATE_URL ) ||
// is acct
str_starts_with( $id, 'acct:' )
) {
return self::get_by_resource( $id );
} else {
return self::get_by_username( $id );
@ -176,7 +234,7 @@ class Users {
}
/**
* Normalize the host.
* Normalize a host.
*
* @param string $host The host.
*
@ -186,6 +244,22 @@ class Users {
return \str_replace( 'www.', '', $host );
}
/**
* Normalize a URL.
*
* @param string $url The URL.
*
* @return string The normalized URL.
*/
public static function normalize_url( $url ) {
$url = \untrailingslashit( $url );
$url = \str_replace( 'https://', '', $url );
$url = \str_replace( 'http://', '', $url );
$url = \str_replace( 'www.', '', $url );
return $url;
}
/**
* Get the User collection.
*

2
includes/rest/class-webfinger.php
View file

@ -72,7 +72,7 @@ class Webfinger {
$params['resource'] = array(
'required' => true,
'type' => 'string',
'pattern' => '^acct:(.+)@(.+)$',
'pattern' => '^(acct:)|^(https?://)(.+)$',
);
return $params;

6
integration/class-webfinger.php
View file

@ -53,10 +53,12 @@ class Webfinger {
* @return array the jrd array
*/
public static function add_pseudo_user_discovery( $array, $resource ) {
if ( $array ) {
$user = Webfinger_Rest::get_profile( $resource );
if ( ! $user || is_wp_error( $user ) ) {
return $array;
}
return Webfinger_Rest::get_profile( $resource );
return $user;
}
}

43
tests/test-class-activitypub-users-collection.php Normal file
View file

@ -0,0 +1,43 @@
<?php
class Test_Activitypub_Users_Collection extends WP_UnitTestCase {
public function set_up() {
parent::set_up();
add_option( 'activitypub_blog_user_identifier', 'blog' );
add_user_meta( 1, 'activitypub_user_identifier', 'admin' );
}
/**
* @dataProvider the_resource_provider
*/
public function test_get_by_various( $resource, $expected ) {
$user = Activitypub\Collection\Users::get_by_resource( $resource );
$this->assertInstanceOf( $expected, $user );
}
public function the_resource_provider() {
return array(
array( 'http://example.org/?author=1', 'Activitypub\Model\User' ),
array( 'https://example.org/?author=1', 'Activitypub\Model\User' ),
array( 'http://example.org/?author=7', 'WP_Error' ),
array( 'acct:admin@example.org', 'Activitypub\Model\User' ),
array( 'acct:blog@example.org', 'Activitypub\Model\Blog_User' ),
array( 'acct:*@example.org', 'Activitypub\Model\Blog_User' ),
array( 'acct:_@example.org', 'Activitypub\Model\Blog_User' ),
array( 'acct:aksd@example.org', 'WP_Error' ),
array( 'admin@example.org', 'Activitypub\Model\User' ),
array( 'acct:application@example.org', 'Activitypub\Model\Application_User' ),
array( 'http://example.org/@admin', 'Activitypub\Model\User' ),
array( 'http://example.org/@blog', 'Activitypub\Model\Blog_User' ),
array( 'https://example.org/@blog', 'Activitypub\Model\Blog_User' ),
array( 'http://example.org/@blog/', 'Activitypub\Model\Blog_User' ),
array( 'http://example.org/', 'Activitypub\Model\Blog_User' ),
array( 'http://example.org', 'Activitypub\Model\Blog_User' ),
array( 'https://example.org/', 'Activitypub\Model\Blog_User' ),
array( 'https://example.org', 'Activitypub\Model\Blog_User' ),
array( 'http://example.org/@blog/s', 'WP_Error' ),
array( 'http://example.org/@blogs/', 'WP_Error' ),
);
}
}