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<title>[BuddyPress][6209] trunk/bp-core/bp-core-functions.php: Port theme-side nonce-check function from bbPress.</title>
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<dt>Revision</dt> <dd><a href="http://buddypress.trac.wordpress.org/changeset/6209">6209</a></dd>
<dt>Author</dt> <dd>johnjamesjacoby</dd>
<dt>Date</dt> <dd>2012-07-27 07:40:00 +0000 (Fri, 27 Jul 2012)</dd>
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<h3>Log Message</h3>
<pre>Port theme-side nonce-check function from bbPress.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkbpcorebpcorefunctionsphp">trunk/bp-core/bp-core-functions.php</a></li>
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<h3>Diff</h3>
<a id="trunkbpcorebpcorefunctionsphp"></a>
<div class="modfile"><h4>Modified: trunk/bp-core/bp-core-functions.php (6208 => 6209)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/bp-core/bp-core-functions.php 2012-07-27 03:19:08 UTC (rev 6208)
+++ trunk/bp-core/bp-core-functions.php 2012-07-27 07:40:00 UTC (rev 6209)
</span><span class="lines">@@ -1172,4 +1172,39 @@
</span><span class="cx"> remove_action( 'template_redirect', 'redirect_canonical' );
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+/** Nonces ********************************************************************/
+
+/**
+ * Makes sure the user requested an action from another page on this site.
+ *
+ * To avoid security exploits within the theme.
+ *
+ * @since BuddyPress (1.6)
+ *
+ * @uses do_action() Calls 'bp_verify_nonce_request' on $action.
+ * @param string $action Action nonce
+ * @param string $query_arg where to look for nonce in $_REQUEST
+ */
+function bp_verify_nonce_request( $action = '', $query_arg = '_wpnonce' ) {
+
+ // Get the home URL
+ $home_url = strtolower( home_url() );
+
+ // Build the currently requested URL
+ $scheme = is_ssl() ? 'https://' : 'http://';
+ $requested_url = strtolower( $scheme . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] );
+
+ // Check the nonce
+ $result = isset( $_REQUEST[$query_arg] ) ? wp_verify_nonce( $_REQUEST[$query_arg], $action ) : false;
+
+ // Nonce check failed
+ if ( empty( $result ) || empty( $action ) || ( strpos( $requested_url, $home_url ) !== 0 ) )
+ $result = false;
+
+ // Do extra things
+ do_action( 'bp_verify_nonce_request', $action, $result );
+
+ return $result;
+}
+
</ins><span class="cx"> ?>
</span></span></pre>
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