friloo/wp-m365-login
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Add M365 Login plugin: Microsoft Entra ID sign-in for existing users

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Adds a WordPress plugin that places a customisable "Sign in with
Microsoft" button on wp-login.php and signs existing users in via the
OpenID Connect authorization code flow with PKCE. Users are matched by
e-mail address only; no accounts are created.

Security: single-use state/nonce bound to an HttpOnly cookie, ID token
signature verification against Microsoft's JWKS (RS256 only) with
issuer/audience/tenant/expiry/nonce checks, optional tenant pinning,
account binding to the Microsoft object ID, e-mail domain allow-list,
client secret encrypted at rest (AES-256-GCM).

Admin: settings screen with connection, button and security tabs, live
button preview, colour presets, media-library icon picker, redirect URI
copy button and tenant connectivity test.

Packaging for WordPress.org: readme.txt with External services section,
GPL-2.0 license, uninstall.php, POT + German translations, .distignore,
build script, PHPCS config and CI running Plugin Check.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JJxAHYdMfKPoN4koRc4Ci2
This commit is contained in:
friloo 2026-09-22 14:21:10 +00:00
commit 3e3e87b399
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<?php
/**
* Removes all plugin data on uninstall.
*
* @package M365_Login
*/
if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {
exit;
}
global $wpdb;
/**
* Deletes options, transients and user meta for one site.
*/
function m365_login_uninstall_site() {
global $wpdb;
delete_option( 'm365_login_settings' );
// Transients: state records and JWKS cache.
$wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery
$wpdb->prepare(
"DELETE FROM {$wpdb->options} WHERE option_name LIKE %s OR option_name LIKE %s",
$wpdb->esc_like( '_transient_m365_login_' ) . '%',
$wpdb->esc_like( '_transient_timeout_m365_login_' ) . '%'
)
);
}
if ( is_multisite() ) {
$m365_login_site_ids = get_sites( array( 'fields' => 'ids', 'number' => 0 ) );
foreach ( $m365_login_site_ids as $m365_login_site_id ) {
switch_to_blog( $m365_login_site_id );
m365_login_uninstall_site();
restore_current_blog();
}
} else {
m365_login_uninstall_site();
}
// User meta is global.
delete_metadata( 'user', 0, '_m365_login_oid', '', true );
delete_metadata( 'user', 0, '_m365_login_last_login', '', true );