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<title>[14231] trunk/wp-includes/formatting.php: Add basic email/
url validation to General options page.</title>
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<body>
<div id="msg">
<dl>
<dt>Revision</dt> <dd><a href="http://trac.wordpress.org/changeset/14231">14231</a></dd>
<dt>Author</dt> <dd>dd32</dd>
<dt>Date</dt> <dd>2010-04-25 08:16:10 +0000 (Sun, 25 Apr 2010)</dd>
</dl>
<h3>Log Message</h3>
<pre>Add basic email/url validation to General options page. Prevents users entering a invalid Admin email or WordPress/Site Address which is not in URL form. Props technosailor for initial patch, slightly reworked. See <a href="http://trac.wordpress.org/ticket/12868">#12868</a></pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkwpincludesformattingphp">trunk/wp-includes/formatting.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkwpincludesformattingphp"></a>
<div class="modfile"><h4>Modified: trunk/wp-includes/formatting.php (14230 => 14231)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-includes/formatting.php        2010-04-25 07:42:51 UTC (rev 14230)
+++ trunk/wp-includes/formatting.php        2010-04-25 08:16:10 UTC (rev 14231)
</span><span class="lines">@@ -2196,7 +2196,8 @@
</span><span class="cx"> function esc_url( $url, $protocols = null, $_context = 'display' ) {
</span><span class="cx">         $original_url = $url;
</span><span class="cx">
</span><del>-        if ('' == $url) return $url;
</del><ins>+        if ( '' == $url )
+                return $url;
</ins><span class="cx">         $url = preg_replace('|[^a-z0-9-~+_.?#=!&;,/:%@$\|*\'()\\x80-\\xff]|i', '', $url);
</span><span class="cx">         $strip = array('%0d', '%0a', '%0D', '%0A');
</span><span class="cx">         $url = _deep_replace($strip, $url);
</span><span class="lines">@@ -2356,11 +2357,14 @@
</span><span class="cx"> */
</span><span class="cx"> function sanitize_option($option, $value) {
</span><span class="cx">
</span><del>-        switch ($option) {
</del><ins>+        switch ( $option ) {
</ins><span class="cx">                 case 'admin_email':
</span><span class="cx">                         $value = sanitize_email($value);
</span><del>-                        if ( !$value && function_exists('add_settings_error') )
-                                add_settings_error('admin_email', 'invalid_admin_email', __('The email address submitted was not in the right format. Please enter a valid email address.'));
</del><ins>+                        if ( !is_email($value) ) {
+                                $value = get_option( $option ); // Resets option to stored value in the case of failed sanitization
+                                if ( function_exists('add_settings_error') )
+                                        add_settings_error('admin_email', 'invalid_admin_email', __('The email address entered did not appear to be a valid email address. Please enter a valid email address.'));
+                        }
</ins><span class="cx">                         break;
</span><span class="cx">
</span><span class="cx">                 case 'thumbnail_size_w':
</span><span class="lines">@@ -2394,8 +2398,10 @@
</span><span class="cx">                 case 'posts_per_page':
</span><span class="cx">                 case 'posts_per_rss':
</span><span class="cx">                         $value = (int) $value;
</span><del>-                        if ( empty($value) ) $value = 1;
-                        if ( $value < -1 ) $value = abs($value);
</del><ins>+                        if ( empty($value) )
+                                $value = 1;
+                        if ( $value < -1 )
+                                $value = abs($value);
</ins><span class="cx">                         break;
</span><span class="cx">
</span><span class="cx">                 case 'default_ping_status':
</span><span class="lines">@@ -2435,9 +2441,25 @@
</span><span class="cx">                         break;
</span><span class="cx">
</span><span class="cx">                 case 'siteurl':
</span><ins>+                        if ( (bool)preg_match( '#http(s?)://(.+)#i', $value) ) {
+                                $value = esc_url_raw($value);
+                        } else {
+                                $value = get_option( $option ); // Resets option to stored value in the case of failed sanitization
+                                if ( function_exists('add_settings_error') )
+                                        add_settings_error('siteurl', 'invalid_siteurl', __('The WordPress address you entered did not appear to be a valid URL. Please enter a valid URL.'));
+                        }
+                        break;
+
</ins><span class="cx">                 case 'home':
</span><del>-                        $value = esc_url_raw($value);
</del><ins>+                        if ( (bool)preg_match( '#http(s?)://(.+)#i', $value) ) {
+                                $value = esc_url_raw($value);
+                        } else {
+                                $value = get_option( $option ); // Resets option to stored value in the case of failed sanitization
+                                if ( function_exists('add_settings_error') )
+                                        add_settings_error('home', 'invalid_home', __('The Site address you entered did not appear to be a valid URL. Please enter a valid URL.'));
+                        }
</ins><span class="cx">                         break;
</span><ins>+
</ins><span class="cx">                 default :
</span><span class="cx">                         $value = apply_filters("sanitize_option_{$option}", $value, $option);
</span><span class="cx">                         break;
</span></span></pre>
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