streams/mod/rmagic.php

<?php


function rmagic_init(&$a) {

	if(local_channel())
		goaway(z_root());

	$me = get_my_address();
	if($me) {
		$r = q("select hubloc_url from hubloc where hubloc_addr = '%s' limit 1",
			dbesc($me)
		);		
		if($r) {	
			if($r[0]['hubloc_url'] === z_root())
				goaway(z_root() . '/login');
			$dest = z_root() . '/' . str_replace('zid=','zid_=',get_app()->query_string);
			goaway($r[0]['hubloc_url'] . '/magic' . '?f=&dest=' . $dest);
		}
	}
}

function rmagic_post(&$a) {

	$address = trim($_REQUEST['address']);

	if(strpos($address,'@') === false) {
		$arr = array('address' => $address);
		call_hooks('reverse_magic_auth', $arr);		

		try {
			require_once('library/openid/openid.php');
			$openid = new LightOpenID(z_root());
			$openid->identity = $address;
			$openid->returnUrl = z_root() . '/openid'; 
			$openid->required = array('namePerson/friendly', 'namePerson');
			$openid->optional = array('namePerson/first','media/image/aspect11','media/image/default');
			goaway($openid->authUrl());
		} catch (Exception $e) {
			notice( t('We encountered a problem while logging in with the OpenID you provided. Please check the correct spelling of the ID.').'<br /><br >'. t('The error message was:').' '.$e->getMessage());
		}

		// if they're still here...
		notice( t('Authentication failed.') . EOL);		
		return;
	}
	else {

		// Presumed Red identity. Perform reverse magic auth

		if(strpos($address,'@') === false) {
			notice('Invalid address.');
			return;
		}

		$r = null;
		if($address) {
			$r = q("select hubloc_url from hubloc where hubloc_addr = '%s' limit 1",
				dbesc($address)
			);		
		}
		if($r) {
			$url = $r[0]['hubloc_url'];
		}
		else {
			$url = 'https://' . substr($address,strpos($address,'@')+1);
		}	

		if($url) {	
			if($_SESSION['return_url']) 
				$dest = urlencode(z_root() . '/' . str_replace('zid=','zid_=',$_SESSION['return_url']));
			else
				$dest = urlencode(z_root() . '/' . str_replace('zid=','zid_=',$a->query_string));

			goaway($url . '/magic' . '?f=&dest=' . $dest);
		}
	}
}


function rmagic_content(&$a) {

	$o = replace_macros(get_markup_template('rmagic.tpl'),array(
		'$title' => t('Remote Authentication'),
		'$desc' => t('Enter your channel address (e.g. channel@example.com)'),
		'$submit' => t('Authenticate')
	));
	return $o;

}