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+<?php
+
+function id_init(&$a) {
+
+logger('id: ' . print_r($_REQUEST,true));
+
+/**
+ * This example shows several things:
+ * - How a setup interface should look like.
+ * - How to use a mysql table for authentication
+ * - How to store associations in mysql table, instead of php sessions.
+ * - How to store realm authorizations.
+ * - How to send AX/SREG parameters.
+ * For the example to work, you need to create the necessary tables:
+CREATE TABLE Users (
+ id INT NOT NULL auto_increment PRIMARY KEY,
+ login VARCHAR(32) NOT NULL,
+ password CHAR(40) NOT NULL,
+ firstName VARCHAR(32) NOT NULL,
+ lastName VARCHAR(32) NOT NULL
+);
+
+CREATE TABLE AllowedSites (
+ user INT NOT NULL,
+ realm TEXT NOT NULL,
+ attributes TEXT NOT NULL,
+ INDEX(user)
+);
+
+CREATE TABLE Associations (
+ id INT NOT NULL PRIMARY KEY,
+ data TEXT NOT NULL
+);
+ *
+ * This is only an example. Don't use it in your code as-is.
+ * It has several security flaws, which you shouldn't copy (like storing plaintext login and password in forms).
+ *
+ * This setup could be very easily flooded with many associations,
+ * since non-private ones aren't automatically deleted.
+ * You could prevent this by storing a date of association and removing old ones,
+ * or by setting $this->dh = false;
+ * However, the latter one would disable stateful mode, unless connecting via HTTPS.
+ */
+require 'library/openid/provider/provider.php';
+
+
+function getUserData($handle=null)
+{
+ if(! local_channel()) {
+ notice( t('Permission denied.') . EOL);
+ get_app()->page['content'] = login();
+ }
+
+
+ if($handle) {
+ $r = q("select * from channel left join xchan on channel_hash = xchan_hash where channel_hash = '%s' limit 1",
+ dbesc($handle)
+ );
+ }
+ else {
+ $r = q("select * from channel left join xchan on channel_hash = xchan_hash where channel_id = %d",
+ intval(local_channel())
+ );
+ }
+
+ return $r;
+
+/*
+ if(isset($_POST['login'],$_POST['password'])) {
+ $login = mysql_real_escape_string($_POST['login']);
+ $password = sha1($_POST['password']);
+ $q = mysql_query("SELECT * FROM Users WHERE login = '$login' AND password = '$password'");
+ if($data = mysql_fetch_assoc($q)) {
+ return $data;
+ }
+ if($handle) {
+ echo 'Wrong login/password.';
+ }
+ }
+ if($handle) {
+ ?>
+ <form action="" method="post">
+ <input type="hidden" name="openid.assoc_handle" value="<?php echo $handle?>">
+ Login: <input type="text" name="login"><br>
+ Password: <input type="password" name="password"><br>
+ <button>Submit</button>
+ </form>
+ <?php
+ die();
+ }
+*/
+
+}
+
+class MysqlProvider extends LightOpenIDProvider
+{
+ private $attrMap = array(
+ 'namePerson/first' => 'First name',
+ 'namePerson/last' => 'Last name',
+ 'namePerson/friendly' => 'Nickname (login)'
+ );
+
+ private $attrFieldMap = array(
+ 'namePerson/first' => 'firstName',
+ 'namePerson/last' => 'lastName',
+ 'namePerson/friendly' => 'login'
+ );
+
+ function setup($identity, $realm, $assoc_handle, $attributes)
+ {
+ $data = getUserData($assoc_handle);
+ $o .= '<form action="" method="post">'
+ . '<input type="hidden" name="openid.assoc_handle" value="' . $assoc_handle . '">'
+ . '<input type="hidden" name="login" value="' . $_POST['login'] .'">'
+ . '<input type="hidden" name="password" value="' . $_POST['password'] .'">'
+ . "<b>$realm</b> wishes to authenticate you.";
+ if($attributes['required'] || $attributes['optional']) {
+ $o .= " It also requests following information (required fields marked with *):"
+ . '<ul>';
+
+ foreach($attributes['required'] as $attr) {
+ if(isset($this->attrMap[$attr])) {
+ $o .= '<li>'
+ . '<input type="checkbox" name="attributes[' . $attr . ']"> '
+ . $this->attrMap[$attr] . '(*)</li>';
+ }
+ }
+
+ foreach($attributes['optional'] as $attr) {
+ if(isset($this->attrMap[$attr])) {
+ $o .= '<li>'
+ . '<input type="checkbox" name="attributes[' . $attr . ']"> '
+ . $this->attrMap[$attr] . '</li>';
+ }
+ }
+ $o .= '</ul>';
+ }
+ $o .= '<br>'
+ . '<button name="once">Allow once</button> '
+ . '<button name="always">Always allow</button> '
+ . '<button name="cancel">cancel</button> '
+ . '</form>';
+
+ get_app()->page['content'] = $o;
+
+ }
+
+ function checkid($realm, &$attributes)
+ {
+ if(isset($_POST['cancel'])) {
+ $this->cancel();
+ }
+
+ $data = getUserData();
+ if(!$data) {
+ return false;
+ }
+ $realm = mysql_real_escape_string($realm);
+
+
+ $q = mysql_query("SELECT attributes FROM AllowedSites WHERE user = '{$data['id']}' AND realm = '$realm'");
+
+ $attrs = array();
+ if($attrs = mysql_fetch_row($q)) {
+ $attrs = explode(',', $attributes[0]);
+ } elseif(isset($_POST['attributes'])) {
+ $attrs = array_keys($_POST['attributes']);
+ } elseif(!isset($_POST['once']) && !isset($_POST['always'])) {
+ return false;
+ }
+
+ $attributes = array();
+ foreach($attrs as $attr) {
+ if(isset($this->attrFieldMap[$attr])) {
+ $attributes[$attr] = $data[$this->attrFieldMap[$attr]];
+ }
+ }
+
+ if(isset($_POST['always'])) {
+ $attrs = mysql_real_escape_string(implode(',', array_keys($attributes)));
+ mysql_query("REPLACE INTO AllowedSites VALUES('{$data['id']}', '$realm', '$attrs')");
+ }
+
+ return $this->serverLocation . '?' . $data['login'];
+ }
+
+ function assoc_handle()
+ {
+ # We generate an integer assoc handle, because it's just faster to look up an integer later.
+ $q = mysql_query("SELECT MAX(id) FROM Associations");
+ $result = mysql_fetch_row($q);
+ return $q[0]+1;
+ }
+
+ function setAssoc($handle, $data)
+ {
+ $data = mysql_real_escape_string(serialize($data));
+ mysql_query("REPLACE INTO Associations VALUES('$handle', '$data')");
+ }
+
+ function getAssoc($handle)
+ {
+ if(!is_numeric($handle)) {
+ return false;
+ }
+ $q = mysql_query("SELECT data FROM Associations WHERE id = '$handle'");
+ $data = mysql_fetch_row($q);
+ if(!$data) {
+ return false;
+ }
+ return unserialize($data[0]);
+ }
+
+ function delAssoc($handle)
+ {
+ if(!is_numeric($handle)) {
+ return false;
+ }
+ mysql_query("DELETE FROM Associations WHERE id = '$handle'");
+ }
+
+}
+$op = new MysqlProvider;
+$op->server();
+
+}
+
+
+
+
+
+
+
+
+
+
+