As an openid has the only login way is by openid (if the user does not update the password field), we should not show that only openid to the user in order to avoid the deletion of that openID.
Users can add others openIDs, if they have more than 1 openID they can delete the openID used for registration.
if( count($urls)==1 && strpos($userdata->user_login,'oid-')===0 ) :
echo '
<p class="error">You cannot delete your only OpenID.</p>';
else:
I propose to add ‘oid-‘ at the beginning of ‘user_login’ to facilitate the verification if it’s an openID account or not.
return "oid-".$username;
LOGIC.PHP
function generate_new_username($url) {
$base = $this->normalize_username($url);
$i='';
while(true) {
$username = $this->normalize_username( $base . $i );
$user = get_userdatabylogin($username);
if ( $user ) {
$i++;
continue;
}
return "oid-".$username;
}
}
INTERFACE.PHP
function profile_panel() {
global $userdata;
if( !current_user_can('read') ) {
return;
}
$this->logic->late_bind();
if( 'success' == $this->logic->action ) {
echo '<div class="updated"><p><strong>Success: '.$this->logic->error.'</strong></p></div>';
}
elseif( $this->logic->error ) {
echo '<div class="error"><p><strong>Error: '.$this->logic->error.'</strong></p></div>';
}
?>
<div class="wrap">
<h2>Your Identity URLs</h2>
<p>The following Identity URLs <a title="What is OpenID?" href="https://openid.net/">?</a>
are tied to this user account. You can login with equivalent permissions using any of the
following identities.</p>
<?php
$urls = $this->logic->store->get_my_identities();
if( count($urls) ) :
if( count($urls)==1 && strpos($userdata->user_login,'oid-')===0 ) :
echo '
<p class="error">You cannot delete your only OpenID.</p>';
else:
?>
<p>There are <?php echo count($urls); ?> identities associated with this WordPress user.</p>
<table class="widefat">
<thead>
<tr>
<th scope="col" style="text-align: center">ID</th>
<th scope="col">Identity Url</th>
<th scope="col" style="text-align: center">Action</th>
</tr>
</thead>
<?php foreach( $urls as $k=>$v ): ?>
<tr class="alternate">
<th scope="row" style="text-align: center"><?php echo $v['uurl_id']; ?></td>
<td><a href="<?php echo $v['url']; ?>"><?php echo $v['url']; ?></a></td>
<td style="text-align: center"><a class="delete" href="<?php
echo wp_nonce_url(sprintf('?page=%s&action=drop_identity&id=%s', $this->profile_page_name, $v['uurl_id']),
'wp-openid-drop-identity_'.$v['url']);
?>">Delete</a></td>
</tr>
<?php endforeach; ?>
</table>
<?php
endif;
else:
echo '
<p class="error">There are no OpenIDs associated with this WordPress user.</p>';
endif; ?>
<p>
<form method="post">Add identity:
<?php wp_nonce_field('wp-openid-add_identity'); ?>
<input id="openid_url" name="openid_url" />
<input type="submit" value="Add" />
<input type="hidden" name="action" value="add_identity" >
</form>
</p>
</div>
<?php
}
