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<title>[2098] sites/trunk/common/includes: login.wordpress.org: Initial open sourcing of our upcoming Single Sign-On library, to be used across our sites, as well as the related generic WordPress, bbPress, and GlotPress plugins.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="http://meta.trac.wordpress.org/changeset/2098">2098</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"http://meta.trac.wordpress.org/changeset/2098","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>stephdau</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2015-11-20 17:35:17 +0000 (Fri, 20 Nov 2015)</dd>
</dl>
<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>login.wordpress.org: Initial open sourcing of our upcoming Single Sign-On library, to be used across our sites, as well as the related generic WordPress, bbPress, and GlotPress plugins.
See <a href="http://meta.trac.wordpress.org/ticket/1406">#1406</a></pre>
<h3>Added Paths</h3>
<ul>
<li>sites/trunk/common/includes/wporg-sso/</li>
<li><a href="#sitestrunkcommonincludeswporgssobbpluginphp">sites/trunk/common/includes/wporg-sso/bb-plugin.php</a></li>
<li><a href="#sitestrunkcommonincludeswporgssoclasswporgssophp">sites/trunk/common/includes/wporg-sso/class-wporg-sso.php</a></li>
<li><a href="#sitestrunkcommonincludeswporgssogppluginphp">sites/trunk/common/includes/wporg-sso/gp-plugin.php</a></li>
<li><a href="#sitestrunkcommonincludeswporgssowppluginphp">sites/trunk/common/includes/wporg-sso/wp-plugin.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="sitestrunkcommonincludeswporgssobbpluginphp"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: sites/trunk/common/includes/wporg-sso/bb-plugin.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- sites/trunk/common/includes/wporg-sso/bb-plugin.php (rev 0)
+++ sites/trunk/common/includes/wporg-sso/bb-plugin.php 2015-11-20 17:35:17 UTC (rev 2098)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,55 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+/**
+ * bbPress-specific WPORG SSO: redirects all BB login and registration screens to our SSO ones.
+ *
+ * @uses WPOrg_SSO (class-wporg-sso.php)
+ * @author stephdau
+ */
+if ( ! class_exists( 'WPOrg_SSO' ) ) {
+ require_once __DIR__ . '/class-wporg-sso.php';
+}
+
+if ( class_exists( 'WPOrg_SSO' ) && ! class_exists( 'BB_WPOrg_SSO' ) ) {
+ class BB_WPOrg_SSO extends WPOrg_SSO {
+ /**
+ * Constructor: add our action(s)/filter(s)
+ */
+ public function __construct() {
+ parent::__construct();
+
+ add_action( 'bb_init', array( &$this, 'redirect_all_login_or_signup_to_sso' ) );
+ }
+
+ /**
+ * Redirect all attempts to get to a BB login or signup to the SSO ones, or to a safe redirect location.
+ *
+ * @example add_action( 'bb_init', array( &$wporg_sso, 'redirect_all_bb_login_or_signup_to_sso' ) );
+ */
+ function redirect_all_login_or_signup_to_sso() {
+ if ( ! $this->_is_valid_targeted_domain( $this->host ) ) {
+ // Not in list of targeted domains, not interested, bail out.
+ return;
+ } else if ( preg_match( '/\/register\.php$/', $this->script ) ) {
+ // Redirect registration request to the one we want to standardize on.
+ if ( "https://{$this->host}{$this->script}" !== $this->sso_signup_url ) {
+ $this->_safe_redirect( $this->sso_signup_url );
+ }
+ } else if ( preg_match( '/\/bb-login\.php$/', $this->script ) ) {
+ $redirect_to_sso_login = $this->sso_login_url;
+
+ // Pass thru the requested action, loggedout, if any
+ if ( ! empty( $_GET ) ) {
+ $redirect_to_sso_login = add_query_arg( $_GET, $redirect_to_sso_login );
+ }
+
+ // Pay extra attention to the post-process redirect_to
+ $redirect_to_sso_login = add_query_arg( 'redirect_to', $this->_get_safer_redirect_to(), $redirect_to_sso_login );
+
+ // Redirect to SSO login, trying to pass on a decent redirect_to request.
+ $this->_safe_redirect( $redirect_to_sso_login );
+ }
+ }
+ }
+
+ new BB_WPOrg_SSO();
+}
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of file
</span><span class="cx" style="display: block; padding: 0 10px">Property changes on: sites/trunk/common/includes/wporg-sso/bb-plugin.php
</span><span class="cx" style="display: block; padding: 0 10px">___________________________________________________________________
</span></span></pre></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: svn:eol-style</h4></div>
<ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+native
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="sitestrunkcommonincludeswporgssoclasswporgssophp"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: sites/trunk/common/includes/wporg-sso/class-wporg-sso.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- sites/trunk/common/includes/wporg-sso/class-wporg-sso.php (rev 0)
+++ sites/trunk/common/includes/wporg-sso/class-wporg-sso.php 2015-11-20 17:35:17 UTC (rev 2098)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,157 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+if ( ! class_exists( 'WPOrg_SSO' ) ) {
+ /**
+ * Single Sign-On (SSO) handling for WordPress/bbPress/GlotPress instances under *.wordpress.org.
+ *
+ * @author stephdau
+ */
+ class WPOrg_SSO {
+ const SSO_HOST = 'login.wordpress.org';
+
+ public $sso_host_url;
+ public $sso_login_url;
+ public $sso_signup_url;
+
+ public $host;
+ public $script;
+
+ /**
+ * Constructor, instantiate common properties
+ */
+ public function __construct() {
+ $this->sso_host_url = 'https://' . self::SSO_HOST;
+ $this->sso_login_url = $this->sso_host_url . '/wp-login.php';
+ $this->sso_signup_url = 'https://wordpress.org/support/register.php'; // For now
+
+ $this->host = $_SERVER['HTTP_HOST'];
+ $this->script = $_SERVER['SCRIPT_NAME'];
+ }
+
+ /**
+ * Checks if the requested redirect_to URL is part of the wordpress.org empire, adds it as an redirect host if so.
+ *
+ * @param array $hosts Currently allowed hosts
+ * @return array $hosts Edited lists of allowed hosts
+ *
+ * @example add_filter( 'allowed_redirect_hosts', array( &$this, 'add_allowed_redirect_host' ) );
+ */
+ public function add_allowed_redirect_host( $hosts ) {
+ if ( self::SSO_HOST === $this->host ) {
+ // If on the SSO host, add the requesting source (eg: make.wordpress.org), if within our bounds
+ $url = parse_url( $this->_get_safer_redirect_to() );
+ $host = ( empty( $url ) ) ? null : $url['host'];
+ } else {
+ // If not on the SSO host, add login.wordpress.org, to be safe
+ $host = self::SSO_HOST;
+ }
+
+ // If we got a host by now, it's a safe wordpress.org-based one, add it to the list of allowed redirects
+ if ( ! empty( $host ) && ! in_array( $host, $hosts ) ){
+ $hosts[] = $host;
+ }
+
+ // Return list of allowed hosts
+ return $hosts;
+ }
+
+ /**
+ * Returns the SSO login URL, with redirect_to as requested, if deemed valid.
+ *
+ * @param string $redirect_to
+ * @param string $filter_redirect_to When used with the WP login_url filter, the redirect_to is passed as a 2nd arg instead.
+ * @return string
+ *
+ * @example Use directly, or through add_action( 'login_url', array( &$wporg_sso, 'login_url' ), 10, 2 );
+ */
+ public function login_url( $redirect_to = '', $filter_redirect_to = '' ) {
+ $login_url = $this->sso_login_url;
+ // If 2nd arg is passed, then redirect_to is it.
+ if ( ! empty( $filter_redirect_to ) ) {
+ $redirect_to = $filter_redirect_to;
+ }
+ if ( ! empty( $redirect_to ) && $this->_is_valid_targeted_domain( $redirect_to ) ) {
+ $redirect_to = preg_replace( '/\/wp-(login|signup)\.php\??.*$/', '/', $redirect_to );
+ $login_url = add_query_arg( 'redirect_to', $redirect_to, $login_url );
+ }
+ return $login_url;
+
+ }
+
+ /**
+ * Get a safe redirect URL (ie: a wordpress.org-based one) from $_REQUEST['redirect_to'] or a safe alternative.
+ *
+ * @return string Safe redirect URL from $_REQUEST['redirect_to']
+ */
+ protected function _get_safer_redirect_to() {
+ // Setup a default redirect to URL, with a safe version toonly change if validation succeeds below.
+ $redirect_to = 'https://wordpress.org/';
+
+ if ( ! empty( $_REQUEST['redirect_to'] ) ) {
+ // User is requesting a further redirect afterward, let's make sure it's a legit target.
+ $redirect_to_requested = function_exists( 'wp_sanitize_redirect' ) ? wp_sanitize_redirect( $_REQUEST['redirect_to'] ) : $_REQUEST['redirect_to'];
+ if ( $this->_is_valid_targeted_domain( $redirect_to_requested ) ) {
+ $redirect_to = $redirect_to_requested;
+ }
+ } else {
+ // Otherwise, attempt to guess the parent dir of where they came from and validate that.
+ $redirect_to_source_parent = preg_replace( '/\/[^\/]+\.php\??.*$/', '/', "https://{$this->host}{$_SERVER['REQUEST_URI']}" );
+ if ( $this->_is_valid_targeted_domain( $redirect_to_source_parent ) ) {
+ $redirect_to = $redirect_to_source_parent;
+ }
+ }
+
+ return $redirect_to;
+ }
+
+ /**
+ * Tests if the passed host/domain, or URL, is part of the WordPress.org domain.
+ *
+ * @param unknown $string A domain, hostname, or URL
+ * @return boolean True is ok, false if not
+ */
+ protected function _is_valid_targeted_domain( $string ) {
+ if ( empty( $string ) || ! is_string( $string ) ) {
+ $string = '';
+ }
+
+ if ( strstr( $string , '/' ) ) {
+ $url = parse_url( $string );
+ $host = ( ! empty( $url['host'] ) ) ? $url['host'] : '';
+ } else {
+ $host = $string;
+ }
+
+ if ( ! empty( $host ) && strstr( $host , '.' ) ) {
+ return ( preg_match( '/^(.+\.)?wordpress\.org$/', $host ) ) ? true : false;
+ }
+
+ return false;
+ }
+
+ /**
+ * Validates if target URL is within our bounds, then redirects to it if so, or to WP.org homepage (returns if headers already sent).
+ *
+ * @param string $to Destination URL
+ * @param number $status HTTP redirect status, defaults to 302
+ *
+ * @note: using our own over wp_safe_redirect(), etc, because not all targeted platforms (WP/BB/GP/etc) implement an equivalent, we run early, etc.
+ */
+ protected function _safe_redirect( $to, $status = 302 ) {
+ if ( headers_sent() ) {
+ return;
+ }
+
+ if ( ! $this->_is_valid_targeted_domain( $to ) ) {
+ $to = $this->_get_safer_redirect_to();
+ }
+
+ header(
+ 'Location: ' . $to,
+ true,
+ preg_match( '/^30(1|2)$/', $status ) ? $status : 302
+ );
+
+ die();
+ }
+ }
+}
</ins><span class="cx" style="display: block; padding: 0 10px">Property changes on: sites/trunk/common/includes/wporg-sso/class-wporg-sso.php
</span><span class="cx" style="display: block; padding: 0 10px">___________________________________________________________________
</span></span></pre></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: svn:eol-style</h4></div>
<ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+native
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="sitestrunkcommonincludeswporgssogppluginphp"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: sites/trunk/common/includes/wporg-sso/gp-plugin.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- sites/trunk/common/includes/wporg-sso/gp-plugin.php (rev 0)
+++ sites/trunk/common/includes/wporg-sso/gp-plugin.php 2015-11-20 17:35:17 UTC (rev 2098)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,67 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+/**
+ * WPORG SSO: filters gp_url_login() to return the equivalent SSO URL instead, removes the login route.
+ *
+ * @uses WPOrg_SSO (class-wporg-sso.php)
+ * @author stephdau
+ */
+if ( class_exists( 'GP_Plugin' ) && ! class_exists( 'GP_WPOrg_SSO' ) ) {
+ class GP_WPOrg_SSO extends GP_Plugin {
+ var $sso_obj;
+
+ function __construct() {
+ parent::__construct();
+ // Load SSO lib
+ $this->instantiate_sso();
+ // Actions
+ $this->add_action( 'init' );
+ // Filters
+ $this->add_filter( 'gp_url', array( 'args' => 3 ) );
+ }
+
+ /**
+ * Instantiates a WPOrg_SSO (SSO lib) obj as self::sso_obj
+ */
+ function instantiate_sso() {
+ if ( empty( $this->sso_obj ) ) {
+ if ( ! class_exists( 'WPOrg_SSO' ) ) {
+ require_once __DIR__ . '/class-wporg-sso.php';
+ }
+ $this->sso_obj = new WPOrg_SSO();
+ }
+ }
+
+ /**
+ * Init action: remove the /login route, login URL filtered to SSO's in self::gp_url()
+ */
+ function init() {
+ GP::$router->remove( '/login' );
+ }
+
+
+ /**
+ * Filter gp_url to return an equivalent login URL on the SSO instead of GP.
+ *
+ * @param string $url
+ * @param string $path
+ * @param string $args
+ * @return string Login URL to SSO, with redirect_to back.
+ */
+ function gp_url( $url, $path, $args ) {
+ if ( preg_match( '/^\/login(\?.+)?$/', $url ) ) {
+ // If the URL is to the login route.
+ if ( ! empty( $args['redirect_to'] ) ) {
+ // If there's already a redirect to request, pass it on to the SSO login.
+ $url = $this->sso_obj->login_url( null, $args['redirect_to'] );
+ } else {
+ // Oherwise, make the current page the post-login target.
+ $url = $this->sso_obj->login_url( gp_url_current() );
+ }
+ }
+
+ return $url;
+ }
+ }
+
+ GP::$plugins->wporg_sso = new GP_WPOrg_SSO();
+}
</ins><span class="cx" style="display: block; padding: 0 10px">Property changes on: sites/trunk/common/includes/wporg-sso/gp-plugin.php
</span><span class="cx" style="display: block; padding: 0 10px">___________________________________________________________________
</span></span></pre></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: svn:eol-style</h4></div>
<ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+native
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="sitestrunkcommonincludeswporgssowppluginphp"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: sites/trunk/common/includes/wporg-sso/wp-plugin.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- sites/trunk/common/includes/wporg-sso/wp-plugin.php (rev 0)
+++ sites/trunk/common/includes/wporg-sso/wp-plugin.php 2015-11-20 17:35:17 UTC (rev 2098)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,78 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+/**
+ * WordPress-specific WPORG SSO: redirects all WP login and registration screens to our SSO ones.
+ *
+ * @uses WPOrg_SSO (class-wporg-sso.php)
+ * @author stephdau
+ */
+if ( ! class_exists( 'WPOrg_SSO' ) ) {
+ require_once __DIR__ . '/class-wporg-sso.php';
+}
+
+if ( class_exists( 'WPOrg_SSO' ) && ! class_exists( 'WP_WPOrg_SSO' ) ) {
+ class WP_WPOrg_SSO extends WPOrg_SSO {
+ /**
+ * Constructor: add our action(s)/filter(s)
+ */
+ public function __construct() {
+ parent::__construct();
+
+ add_action( 'init', array( &$this, 'redirect_all_login_or_signup_to_sso' ) );
+ }
+
+ /**
+ * Redirect all attempts to get to a WP login or signup to the SSO ones, or to a safe redirect location.
+
+ * @example add_action( 'init', array( &$wporg_sso, 'redirect_all_wp_login_or_signup_to_sso' ) );
+ */
+ public function redirect_all_login_or_signup_to_sso() {
+ if ( ! $this->_is_valid_targeted_domain( $this->host ) ) {
+ // Not in list of targeted domains, not interested, bail out
+ return;
+ }
+
+ $redirect_req = $this->_get_safer_redirect_to();
+
+ // Add our host to the list of allowed ones.
+ add_filter( 'allowed_redirect_hosts', array( &$this, 'add_allowed_redirect_host' ) );
+
+ if ( preg_match( '/\/wp-signup\.php$/', $this->script ) ) {
+ // If we're on any WP signup screen, redirect to the SSO host one,respecting the user's redirect_to request
+ $this->_safe_redirect( add_query_arg( 'redirect_to', $redirect_req, $this->sso_signup_url ) );
+
+ } else if ( self::SSO_HOST !== $this->host ) {
+ // If we're not on the SSO host
+ if ( preg_match( '/\/wp-login\.php$/', $this->script ) ) {
+ // If on a WP login screen...
+ $redirect_to_sso_login = $this->sso_login_url;
+
+ // Pass thru the requested action, loggedout, if any
+ if ( ! empty( $_GET ) ) {
+ $redirect_to_sso_login = add_query_arg( $_GET, $redirect_to_sso_login );
+ }
+
+ // Pay extra attention to the post-process redirect_to
+ $redirect_to_sso_login = add_query_arg( 'redirect_to', $redirect_req, $redirect_to_sso_login );
+
+ // And actually redirect to the SSO login
+ $this->_safe_redirect( $redirect_to_sso_login );
+ } else {
+ // Otherwise, filter the login_url to point to the SSO
+ add_action( 'login_url', array( &$this, 'login_url' ), 10, 2 );
+ }
+ } else if ( self::SSO_HOST === $this->host && ! preg_match( '/\/wp-login\.php$/', $this->script ) ) {
+ // If on the SSO host, but not on its login or signup screen.
+ // TODO: Relax rules when we want more out of our theme then bypassing it altogether with redirects.
+ if ( is_user_logged_in() ) {
+ // Mimic what happens after a login without a specified redirect.
+ $this->_safe_redirect( 'https://wordpress.org/support/profile/' . get_currentuserinfo()->user_login );
+ } else {
+ // Otherwise, redirect to the login screen.
+ $this->_safe_redirect( $this->sso_login_url );
+ }
+ }
+ }
+ }
+
+ new WP_WPOrg_SSO();
+}
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of file
</span><span class="cx" style="display: block; padding: 0 10px">Property changes on: sites/trunk/common/includes/wporg-sso/wp-plugin.php
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<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: svn:eol-style</h4></div>
<ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+native
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