openid server
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friendica
237
mod/id.php
Normal file
237
mod/id.php
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<?php
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function id_init(&$a) {
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logger('id: ' . print_r($_REQUEST,true));
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/**
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* This example shows several things:
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* - How a setup interface should look like.
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* - How to use a mysql table for authentication
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* - How to store associations in mysql table, instead of php sessions.
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* - How to store realm authorizations.
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* - How to send AX/SREG parameters.
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* For the example to work, you need to create the necessary tables:
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CREATE TABLE Users (
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id INT NOT NULL auto_increment PRIMARY KEY,
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login VARCHAR(32) NOT NULL,
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password CHAR(40) NOT NULL,
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firstName VARCHAR(32) NOT NULL,
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lastName VARCHAR(32) NOT NULL
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);
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CREATE TABLE AllowedSites (
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user INT NOT NULL,
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realm TEXT NOT NULL,
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attributes TEXT NOT NULL,
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INDEX(user)
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);
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CREATE TABLE Associations (
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id INT NOT NULL PRIMARY KEY,
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data TEXT NOT NULL
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);
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*
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* This is only an example. Don't use it in your code as-is.
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* It has several security flaws, which you shouldn't copy (like storing plaintext login and password in forms).
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*
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* This setup could be very easily flooded with many associations,
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* since non-private ones aren't automatically deleted.
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* You could prevent this by storing a date of association and removing old ones,
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* or by setting $this->dh = false;
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* However, the latter one would disable stateful mode, unless connecting via HTTPS.
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*/
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require 'library/openid/provider/provider.php';
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function getUserData($handle=null)
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{
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if(! local_channel()) {
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notice( t('Permission denied.') . EOL);
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get_app()->page['content'] = login();
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}
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if($handle) {
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$r = q("select * from channel left join xchan on channel_hash = xchan_hash where channel_hash = '%s' limit 1",
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dbesc($handle)
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);
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}
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else {
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$r = q("select * from channel left join xchan on channel_hash = xchan_hash where channel_id = %d",
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intval(local_channel())
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);
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}
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return $r;
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/*
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if(isset($_POST['login'],$_POST['password'])) {
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$login = mysql_real_escape_string($_POST['login']);
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$password = sha1($_POST['password']);
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$q = mysql_query("SELECT * FROM Users WHERE login = '$login' AND password = '$password'");
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if($data = mysql_fetch_assoc($q)) {
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return $data;
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}
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if($handle) {
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echo 'Wrong login/password.';
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}
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}
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if($handle) {
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?>
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<form action="" method="post">
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<input type="hidden" name="openid.assoc_handle" value="<?php echo $handle?>">
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Login: <input type="text" name="login"><br>
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Password: <input type="password" name="password"><br>
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<button>Submit</button>
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</form>
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<?php
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die();
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}
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*/
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}
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class MysqlProvider extends LightOpenIDProvider
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{
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private $attrMap = array(
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'namePerson/first' => 'First name',
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'namePerson/last' => 'Last name',
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'namePerson/friendly' => 'Nickname (login)'
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);
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private $attrFieldMap = array(
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'namePerson/first' => 'firstName',
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'namePerson/last' => 'lastName',
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'namePerson/friendly' => 'login'
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);
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function setup($identity, $realm, $assoc_handle, $attributes)
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{
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$data = getUserData($assoc_handle);
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$o .= '<form action="" method="post">'
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. '<input type="hidden" name="openid.assoc_handle" value="' . $assoc_handle . '">'
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. '<input type="hidden" name="login" value="' . $_POST['login'] .'">'
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. '<input type="hidden" name="password" value="' . $_POST['password'] .'">'
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. "<b>$realm</b> wishes to authenticate you.";
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if($attributes['required'] || $attributes['optional']) {
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$o .= " It also requests following information (required fields marked with *):"
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. '<ul>';
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foreach($attributes['required'] as $attr) {
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if(isset($this->attrMap[$attr])) {
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$o .= '<li>'
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. '<input type="checkbox" name="attributes[' . $attr . ']"> '
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. $this->attrMap[$attr] . '(*)</li>';
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}
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}
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foreach($attributes['optional'] as $attr) {
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if(isset($this->attrMap[$attr])) {
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$o .= '<li>'
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. '<input type="checkbox" name="attributes[' . $attr . ']"> '
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. $this->attrMap[$attr] . '</li>';
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}
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}
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$o .= '</ul>';
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}
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$o .= '<br>'
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. '<button name="once">Allow once</button> '
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. '<button name="always">Always allow</button> '
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. '<button name="cancel">cancel</button> '
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. '</form>';
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get_app()->page['content'] = $o;
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}
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function checkid($realm, &$attributes)
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{
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if(isset($_POST['cancel'])) {
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$this->cancel();
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}
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$data = getUserData();
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if(!$data) {
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return false;
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}
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$realm = mysql_real_escape_string($realm);
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$q = mysql_query("SELECT attributes FROM AllowedSites WHERE user = '{$data['id']}' AND realm = '$realm'");
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$attrs = array();
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if($attrs = mysql_fetch_row($q)) {
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$attrs = explode(',', $attributes[0]);
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} elseif(isset($_POST['attributes'])) {
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$attrs = array_keys($_POST['attributes']);
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} elseif(!isset($_POST['once']) && !isset($_POST['always'])) {
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return false;
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}
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$attributes = array();
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foreach($attrs as $attr) {
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if(isset($this->attrFieldMap[$attr])) {
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$attributes[$attr] = $data[$this->attrFieldMap[$attr]];
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}
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}
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if(isset($_POST['always'])) {
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$attrs = mysql_real_escape_string(implode(',', array_keys($attributes)));
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mysql_query("REPLACE INTO AllowedSites VALUES('{$data['id']}', '$realm', '$attrs')");
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}
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return $this->serverLocation . '?' . $data['login'];
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}
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function assoc_handle()
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{
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# We generate an integer assoc handle, because it's just faster to look up an integer later.
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$q = mysql_query("SELECT MAX(id) FROM Associations");
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$result = mysql_fetch_row($q);
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return $q[0]+1;
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}
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function setAssoc($handle, $data)
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{
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$data = mysql_real_escape_string(serialize($data));
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mysql_query("REPLACE INTO Associations VALUES('$handle', '$data')");
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}
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function getAssoc($handle)
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{
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if(!is_numeric($handle)) {
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return false;
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}
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$q = mysql_query("SELECT data FROM Associations WHERE id = '$handle'");
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$data = mysql_fetch_row($q);
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if(!$data) {
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return false;
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}
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return unserialize($data[0]);
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}
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function delAssoc($handle)
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{
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if(!is_numeric($handle)) {
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return false;
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}
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mysql_query("DELETE FROM Associations WHERE id = '$handle'");
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}
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}
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$op = new MysqlProvider;
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$op->server();
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}
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