[Fusionforge-commits] r12864 - in trunk/src/plugins/authopenid: . 3rd-party 3rd-party/lightopenid etc include packaging packaging/control packaging/docs packaging/install packaging/links www

Olivier Berger olberger at fusionforge.org
Mon Mar 21 14:48:31 CET 2011


Author: olberger
Date: 2011-03-21 14:48:31 +0100 (Mon, 21 Mar 2011)
New Revision: 12864

Added:
   trunk/src/plugins/authopenid/3rd-party/
   trunk/src/plugins/authopenid/3rd-party/lightopenid/
   trunk/src/plugins/authopenid/3rd-party/lightopenid/example-google.php
   trunk/src/plugins/authopenid/3rd-party/lightopenid/example.php
   trunk/src/plugins/authopenid/3rd-party/lightopenid/openid.php
   trunk/src/plugins/authopenid/etc/
   trunk/src/plugins/authopenid/etc/authopenid.ini
   trunk/src/plugins/authopenid/include/AuthOpenIDPlugin.class.php
   trunk/src/plugins/authopenid/packaging/
   trunk/src/plugins/authopenid/packaging/control/
   trunk/src/plugins/authopenid/packaging/control/301plugin-authopenid
   trunk/src/plugins/authopenid/packaging/control/301plugin-authopenid.shortdesc
   trunk/src/plugins/authopenid/packaging/cron.d/
   trunk/src/plugins/authopenid/packaging/dirs/
   trunk/src/plugins/authopenid/packaging/docs/
   trunk/src/plugins/authopenid/packaging/docs/plugin-authopenid
   trunk/src/plugins/authopenid/packaging/install/
   trunk/src/plugins/authopenid/packaging/install/plugin-authopenid
   trunk/src/plugins/authopenid/packaging/links/
   trunk/src/plugins/authopenid/packaging/links/plugin-authopenid
   trunk/src/plugins/authopenid/www/
   trunk/src/plugins/authopenid/www/post-login.php
Log:
Initial code for OpenID consumer based on lightopenid library


Added: trunk/src/plugins/authopenid/3rd-party/lightopenid/example-google.php
===================================================================
--- trunk/src/plugins/authopenid/3rd-party/lightopenid/example-google.php	                        (rev 0)
+++ trunk/src/plugins/authopenid/3rd-party/lightopenid/example-google.php	2011-03-21 13:48:31 UTC (rev 12864)
@@ -0,0 +1,23 @@
+<?php
+# Logging in with Google accounts requires setting special identity, so this example shows how to do it.
+require 'openid.php';
+try {
+    $openid = new LightOpenID;
+    if(!$openid->mode) {
+        if(isset($_GET['login'])) {
+            $openid->identity = 'https://www.google.com/accounts/o8/id';
+            header('Location: ' . $openid->authUrl());
+        }
+?>
+<form action="?login" method="post">
+    <button>Login with Google</button>
+</form>
+<?php
+    } elseif($openid->mode == 'cancel') {
+        echo 'User has canceled authentication!';
+    } else {
+        echo 'User ' . ($openid->validate() ? $openid->identity . ' has ' : 'has not ') . 'logged in.';
+    }
+} catch(ErrorException $e) {
+    echo $e->getMessage();
+}

Added: trunk/src/plugins/authopenid/3rd-party/lightopenid/example.php
===================================================================
--- trunk/src/plugins/authopenid/3rd-party/lightopenid/example.php	                        (rev 0)
+++ trunk/src/plugins/authopenid/3rd-party/lightopenid/example.php	2011-03-21 13:48:31 UTC (rev 12864)
@@ -0,0 +1,22 @@
+<?php
+require 'openid.php';
+try {
+    $openid = new LightOpenID;
+    if(!$openid->mode) {
+        if(isset($_POST['openid_identifier'])) {
+            $openid->identity = $_POST['openid_identifier'];
+            header('Location: ' . $openid->authUrl());
+        }
+?>
+<form action="" method="post">
+    OpenID: <input type="text" name="openid_identifier" /> <button>Submit</button>
+</form>
+<?php
+    } elseif($openid->mode == 'cancel') {
+        echo 'User has canceled authentication!';
+    } else {
+        echo 'User ' . ($openid->validate() ? $openid->identity . ' has ' : 'has not ') . 'logged in.';
+    }
+} catch(ErrorException $e) {
+    echo $e->getMessage();
+}

Added: trunk/src/plugins/authopenid/3rd-party/lightopenid/openid.php
===================================================================
--- trunk/src/plugins/authopenid/3rd-party/lightopenid/openid.php	                        (rev 0)
+++ trunk/src/plugins/authopenid/3rd-party/lightopenid/openid.php	2011-03-21 13:48:31 UTC (rev 12864)
@@ -0,0 +1,744 @@
+<?php
+/**
+ * This class provides a simple interface for OpenID (1.1 and 2.0) authentication.
+ * Supports Yadis discovery.
+ * The authentication process is stateless/dumb.
+ *
+ * Usage:
+ * Sign-on with OpenID is a two step process:
+ * Step one is authentication with the provider:
+ * <code>
+ * $openid = new LightOpenID;
+ * $openid->identity = 'ID supplied by user';
+ * header('Location: ' . $openid->authUrl());
+ * </code>
+ * The provider then sends various parameters via GET, one of them is openid_mode.
+ * Step two is verification:
+ * <code>
+ * if ($this->data['openid_mode']) {
+ *     $openid = new LightOpenID;
+ *     echo $openid->validate() ? 'Logged in.' : 'Failed';
+ * }
+ * </code>
+ *
+ * Optionally, you can set $returnUrl and $realm (or $trustRoot, which is an alias).
+ * The default values for those are:
+ * $openid->realm     = (!empty($_SERVER['HTTPS']) ? 'https' : 'http') . '://' . $_SERVER['HTTP_HOST'];
+ * $openid->returnUrl = $openid->realm . $_SERVER['REQUEST_URI'];
+ * If you don't know their meaning, refer to any openid tutorial, or specification. Or just guess.
+ *
+ * AX and SREG extensions are supported.
+ * To use them, specify $openid->required and/or $openid->optional before calling $openid->authUrl().
+ * These are arrays, with values being AX schema paths (the 'path' part of the URL).
+ * For example:
+ *   $openid->required = array('namePerson/friendly', 'contact/email');
+ *   $openid->optional = array('namePerson/first');
+ * If the server supports only SREG or OpenID 1.1, these are automaticaly
+ * mapped to SREG names, so that user doesn't have to know anything about the server.
+ *
+ * To get the values, use $openid->getAttributes().
+ *
+ *
+ * The library requires PHP >= 5.1.2 with curl or http/https stream wrappers enabled.
+ * @author Mewp
+ * @copyright Copyright (c) 2010, Mewp
+ * @license http://www.opensource.org/licenses/mit-license.php MIT
+ */
+class LightOpenID
+{
+    public $returnUrl
+         , $required = array()
+         , $optional = array()
+         , $verify_peer = null
+         , $capath = null
+         , $cainfo = null;
+    private $identity, $claimed_id;
+    protected $server, $version, $trustRoot, $aliases, $identifier_select = false
+            , $ax = false, $sreg = false, $data;
+    static protected $ax_to_sreg = array(
+        'namePerson/friendly'     => 'nickname',
+        'contact/email'           => 'email',
+        'namePerson'              => 'fullname',
+        'birthDate'               => 'dob',
+        'person/gender'           => 'gender',
+        'contact/postalCode/home' => 'postcode',
+        'contact/country/home'    => 'country',
+        'pref/language'           => 'language',
+        'pref/timezone'           => 'timezone',
+        );
+
+    function __construct()
+    {
+        $this->trustRoot = (!empty($_SERVER['HTTPS']) ? 'https' : 'http') . '://' . $_SERVER['HTTP_HOST'];
+        $uri = rtrim(preg_replace('#((?<=\?)|&)openid\.[^&]+#', '', $_SERVER['REQUEST_URI']), '?');
+        $this->returnUrl = $this->trustRoot . $uri;
+
+        $this->data = $_POST + $_GET; # OPs may send data as POST or GET.
+
+        if(!function_exists('curl_init') && !in_array('https', stream_get_wrappers())) {
+            throw new ErrorException('You must have either https wrappers or curl enabled.');
+        }
+    }
+
+    function __set($name, $value)
+    {
+        switch ($name) {
+        case 'identity':
+            if (strlen($value = trim((String) $value))) {
+                if (preg_match('#^xri:/*#i', $value, $m)) {
+                    $value = substr($value, strlen($m[0]));
+                } elseif (!preg_match('/^(?:[=@+\$!\(]|https?:)/i', $value)) {
+                    $value = "http://$value";
+                }
+                if (preg_match('#^https?://[^/]+$#i', $value, $m)) {
+                    $value .= '/';
+                }
+            }
+            $this->$name = $this->claimed_id = $value;
+            break;
+        case 'trustRoot':
+        case 'realm':
+            $this->trustRoot = trim($value);
+        }
+    }
+
+    function __get($name)
+    {
+        switch ($name) {
+        case 'identity':
+            # We return claimed_id instead of identity,
+            # because the developer should see the claimed identifier,
+            # i.e. what he set as identity, not the op-local identifier (which is what we verify)
+            return $this->claimed_id;
+        case 'trustRoot':
+        case 'realm':
+            return $this->trustRoot;
+        case 'mode':
+            return empty($this->data['openid_mode']) ? null : $this->data['openid_mode'];
+        }
+    }
+
+    /**
+     * Checks if the server specified in the url exists.
+     *
+     * @param $url url to check
+     * @return true, if the server exists; false otherwise
+     */
+    function hostExists($url)
+    {
+        if (strpos($url, '/') === false) {
+            $server = $url;
+        } else {
+            $server = @parse_url($url, PHP_URL_HOST);
+        }
+
+        if (!$server) {
+            return false;
+        }
+
+        return !!gethostbynamel($server);
+    }
+
+    protected function request_curl($url, $method='GET', $params=array())
+    {
+        $params = http_build_query($params, '', '&');
+        $curl = curl_init($url . ($method == 'GET' && $params ? '?' . $params : ''));
+        curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
+        curl_setopt($curl, CURLOPT_HEADER, false);
+        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
+        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($curl, CURLOPT_HTTPHEADER, array('Accept: application/xrds+xml, */*'));
+
+        if($this->verify_peer !== null) {
+            curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, $this->verify_peer);
+            if($this->capath) {
+                curl_setopt($curl, CURLOPT_CAPATH, $this->capath);
+            }
+
+            if($this->cainfo) {
+                curl_setopt($curl, CURLOPT_CAINFO, $this->cainfo);
+            }
+        }
+
+        if ($method == 'POST') {
+            curl_setopt($curl, CURLOPT_POST, true);
+            curl_setopt($curl, CURLOPT_POSTFIELDS, $params);
+        } elseif ($method == 'HEAD') {
+            curl_setopt($curl, CURLOPT_HEADER, true);
+            curl_setopt($curl, CURLOPT_NOBODY, true);
+        } else {
+            curl_setopt($curl, CURLOPT_HTTPGET, true);
+        }
+        $response = curl_exec($curl);
+
+        if($method == 'HEAD') {
+            $headers = array();
+            foreach(explode("\n", $response) as $header) {
+                $pos = strpos($header,':');
+                $name = strtolower(trim(substr($header, 0, $pos)));
+                $headers[$name] = trim(substr($header, $pos+1));
+            }
+
+            # Updating claimed_id in case of redirections.
+            $effective_url = curl_getinfo($curl, CURLINFO_EFFECTIVE_URL);
+            if($effective_url != $url) {
+                $this->identity = $this->claimed_id = $effective_url;
+            }
+
+            return $headers;
+        }
+
+        if (curl_errno($curl)) {
+            throw new ErrorException(curl_error($curl), curl_errno($curl));
+        }
+
+        return $response;
+    }
+
+    protected function request_streams($url, $method='GET', $params=array())
+    {
+        if(!$this->hostExists($url)) {
+            throw new ErrorException('Invalid request.');
+        }
+
+        $params = http_build_query($params, '', '&');
+        switch($method) {
+        case 'GET':
+            $opts = array(
+                'http' => array(
+                    'method' => 'GET',
+                    'header' => 'Accept: application/xrds+xml, */*',
+                    'ignore_errors' => true,
+                )
+            );
+            $url = $url . ($params ? '?' . $params : '');
+            break;
+        case 'POST':
+            $opts = array(
+                'http' => array(
+                    'method' => 'POST',
+                    'header'  => 'Content-type: application/x-www-form-urlencoded',
+                    'content' => $params,
+                    'ignore_errors' => true,
+                )
+            );
+            break;
+        case 'HEAD':
+            # We want to send a HEAD request,
+            # but since get_headers doesn't accept $context parameter,
+            # we have to change the defaults.
+            $default = stream_context_get_options(stream_context_get_default());
+            stream_context_get_default(
+                array('http' => array(
+                    'method' => 'HEAD',
+                    'header' => 'Accept: application/xrds+xml, */*',
+                    'ignore_errors' => true,
+                ))
+            );
+
+            $url = $url . ($params ? '?' . $params : '');
+            $headers_tmp = get_headers ($url);
+            if(!$headers_tmp) {
+                return array();
+            }
+
+            # Parsing headers.
+            $headers = array();
+            foreach($headers_tmp as $header) {
+                $pos = strpos($header,':');
+                $name = strtolower(trim(substr($header, 0, $pos)));
+                $headers[$name] = trim(substr($header, $pos+1));
+
+                # Following possible redirections. The point is just to have
+                # claimed_id change with them, because get_headers() will
+                # follow redirections automatically.
+                # We ignore redirections with relative paths.
+                # If any known provider uses them, file a bug report.
+                if($name == 'location') {
+                    if(strpos($headers[$name], 'http') === 0) {
+                        $this->identity = $this->claimed_id = $headers[$name];
+                    } elseif($headers[$name][0] == '/') {
+                        $parsed_url = parse_url($this->claimed_id);
+                        $this->identity =
+                        $this->claimed_id = $parsed_url['scheme'] . '://'
+                                          . $parsed_url['host']
+                                          . $headers[$name];
+                    }
+                }
+            }
+
+            # And restore them.
+            stream_context_get_default($default);
+            return $headers;
+        }
+
+        if($this->verify_peer) {
+            $opts += array('ssl' => array(
+                'verify_peer' => true,
+                'capath'      => $this->capath,
+                'cafile'      => $this->cainfo,
+            ));
+        }
+
+        $context = stream_context_create ($opts);
+
+        return file_get_contents($url, false, $context);
+    }
+
+    protected function request($url, $method='GET', $params=array())
+    {
+        if(function_exists('curl_init') && !ini_get('safe_mode') && !ini_get('open_basedir')) {
+            return $this->request_curl($url, $method, $params);
+        }
+        return $this->request_streams($url, $method, $params);
+    }
+
+    protected function build_url($url, $parts)
+    {
+        if (isset($url['query'], $parts['query'])) {
+            $parts['query'] = $url['query'] . '&' . $parts['query'];
+        }
+
+        $url = $parts + $url;
+        $url = $url['scheme'] . '://'
+             . (empty($url['username'])?''
+                 :(empty($url['password'])? "{$url['username']}@"
+                 :"{$url['username']}:{$url['password']}@"))
+             . $url['host']
+             . (empty($url['port'])?'':":{$url['port']}")
+             . (empty($url['path'])?'':$url['path'])
+             . (empty($url['query'])?'':"?{$url['query']}")
+             . (empty($url['fragment'])?'':"#{$url['fragment']}");
+        return $url;
+    }
+
+    /**
+     * Helper function used to scan for <meta>/<link> tags and extract information
+     * from them
+     */
+    protected function htmlTag($content, $tag, $attrName, $attrValue, $valueName)
+    {
+        preg_match_all("#<{$tag}[^>]*$attrName=['\"].*?$attrValue.*?['\"][^>]*$valueName=['\"](.+?)['\"][^>]*/?>#i", $content, $matches1);
+        preg_match_all("#<{$tag}[^>]*$valueName=['\"](.+?)['\"][^>]*$attrName=['\"].*?$attrValue.*?['\"][^>]*/?>#i", $content, $matches2);
+
+        $result = array_merge($matches1[1], $matches2[1]);
+        return empty($result)?false:$result[0];
+    }
+
+    /**
+     * Performs Yadis and HTML discovery. Normally not used.
+     * @param $url Identity URL.
+     * @return String OP Endpoint (i.e. OpenID provider address).
+     * @throws ErrorException
+     */
+    function discover($url)
+    {
+        if (!$url) throw new ErrorException('No identity supplied.');
+        # Use xri.net proxy to resolve i-name identities
+        if (!preg_match('#^https?:#', $url)) {
+            $url = "https://xri.net/$url";
+        }
+
+        # We save the original url in case of Yadis discovery failure.
+        # It can happen when we'll be lead to an XRDS document
+        # which does not have any OpenID2 services.
+        $originalUrl = $url;
+
+        # A flag to disable yadis discovery in case of failure in headers.
+        $yadis = true;
+
+        # We'll jump a maximum of 5 times, to avoid endless redirections.
+        for ($i = 0; $i < 5; $i ++) {
+            if ($yadis) {
+                $headers = $this->request($url, 'HEAD');
+
+                $next = false;
+                if (isset($headers['x-xrds-location'])) {
+                    $url = $this->build_url(parse_url($url), parse_url(trim($headers['x-xrds-location'])));
+                    $next = true;
+                }
+
+                if (isset($headers['content-type'])
+                    && (strpos($headers['content-type'], 'application/xrds+xml') !== false
+                        || strpos($headers['content-type'], 'text/xml') !== false)
+                ) {
+                    # Apparently, some providers return XRDS documents as text/html.
+                    # While it is against the spec, allowing this here shouldn't break
+                    # compatibility with anything.
+                    # ---
+                    # Found an XRDS document, now let's find the server, and optionally delegate.
+                    $content = $this->request($url, 'GET');
+
+                    preg_match_all('#<Service.*?>(.*?)</Service>#s', $content, $m);
+                    foreach($m[1] as $content) {
+                        $content = ' ' . $content; # The space is added, so that strpos doesn't return 0.
+
+                        # OpenID 2
+                        $ns = preg_quote('http://specs.openid.net/auth/2.0/');
+                        if(preg_match('#<Type>\s*'.$ns.'(server|signon)\s*</Type>#s', $content, $type)) {
+                            if ($type[1] == 'server') $this->identifier_select = true;
+
+                            preg_match('#<URI.*?>(.*)</URI>#', $content, $server);
+                            preg_match('#<(Local|Canonical)ID>(.*)</\1ID>#', $content, $delegate);
+                            if (empty($server)) {
+                                return false;
+                            }
+                            # Does the server advertise support for either AX or SREG?
+                            $this->ax   = (bool) strpos($content, '<Type>http://openid.net/srv/ax/1.0</Type>');
+                            $this->sreg = strpos($content, '<Type>http://openid.net/sreg/1.0</Type>')
+                                       || strpos($content, '<Type>http://openid.net/extensions/sreg/1.1</Type>');
+
+                            $server = $server[1];
+                            if (isset($delegate[2])) $this->identity = trim($delegate[2]);
+                            $this->version = 2;
+
+                            $this->server = $server;
+                            return $server;
+                        }
+
+                        # OpenID 1.1
+                        $ns = preg_quote('http://openid.net/signon/1.1');
+                        if (preg_match('#<Type>\s*'.$ns.'\s*</Type>#s', $content)) {
+
+                            preg_match('#<URI.*?>(.*)</URI>#', $content, $server);
+                            preg_match('#<.*?Delegate>(.*)</.*?Delegate>#', $content, $delegate);
+                            if (empty($server)) {
+                                return false;
+                            }
+                            # AX can be used only with OpenID 2.0, so checking only SREG
+                            $this->sreg = strpos($content, '<Type>http://openid.net/sreg/1.0</Type>')
+                                       || strpos($content, '<Type>http://openid.net/extensions/sreg/1.1</Type>');
+
+                            $server = $server[1];
+                            if (isset($delegate[1])) $this->identity = $delegate[1];
+                            $this->version = 1;
+
+                            $this->server = $server;
+                            return $server;
+                        }
+                    }
+
+                    $next = true;
+                    $yadis = false;
+                    $url = $originalUrl;
+                    $content = null;
+                    break;
+                }
+                if ($next) continue;
+
+                # There are no relevant information in headers, so we search the body.
+                $content = $this->request($url, 'GET');
+                $location = $this->htmlTag($content, 'meta', 'http-equiv', 'X-XRDS-Location', 'content');
+                if ($location) {
+                    $url = $this->build_url(parse_url($url), parse_url($location));
+                    continue;
+                }
+            }
+
+            if (!$content) $content = $this->request($url, 'GET');
+
+            # At this point, the YADIS Discovery has failed, so we'll switch
+            # to openid2 HTML discovery, then fallback to openid 1.1 discovery.
+            $server   = $this->htmlTag($content, 'link', 'rel', 'openid2.provider', 'href');
+            $delegate = $this->htmlTag($content, 'link', 'rel', 'openid2.local_id', 'href');
+            $this->version = 2;
+
+            if (!$server) {
+                # The same with openid 1.1
+                $server   = $this->htmlTag($content, 'link', 'rel', 'openid.server', 'href');
+                $delegate = $this->htmlTag($content, 'link', 'rel', 'openid.delegate', 'href');
+                $this->version = 1;
+            }
+
+            if ($server) {
+                # We found an OpenID2 OP Endpoint
+                if ($delegate) {
+                    # We have also found an OP-Local ID.
+                    $this->identity = $delegate;
+                }
+                $this->server = $server;
+                return $server;
+            }
+
+            throw new ErrorException('No servers found!');
+        }
+        throw new ErrorException('Endless redirection!');
+    }
+
+    protected function sregParams()
+    {
+        $params = array();
+        # We always use SREG 1.1, even if the server is advertising only support for 1.0.
+        # That's because it's fully backwards compatibile with 1.0, and some providers
+        # advertise 1.0 even if they accept only 1.1. One such provider is myopenid.com
+        $params['openid.ns.sreg'] = 'http://openid.net/extensions/sreg/1.1';
+        if ($this->required) {
+            $params['openid.sreg.required'] = array();
+            foreach ($this->required as $required) {
+                if (!isset(self::$ax_to_sreg[$required])) continue;
+                $params['openid.sreg.required'][] = self::$ax_to_sreg[$required];
+            }
+            $params['openid.sreg.required'] = implode(',', $params['openid.sreg.required']);
+        }
+
+        if ($this->optional) {
+            $params['openid.sreg.optional'] = array();
+            foreach ($this->optional as $optional) {
+                if (!isset(self::$ax_to_sreg[$optional])) continue;
+                $params['openid.sreg.optional'][] = self::$ax_to_sreg[$optional];
+            }
+            $params['openid.sreg.optional'] = implode(',', $params['openid.sreg.optional']);
+        }
+        return $params;
+    }
+
+    protected function axParams()
+    {
+        $params = array();
+        if ($this->required || $this->optional) {
+            $params['openid.ns.ax'] = 'http://openid.net/srv/ax/1.0';
+            $params['openid.ax.mode'] = 'fetch_request';
+            $this->aliases  = array();
+            $counts   = array();
+            $required = array();
+            $optional = array();
+            foreach (array('required','optional') as $type) {
+                foreach ($this->$type as $alias => $field) {
+                    if (is_int($alias)) $alias = strtr($field, '/', '_');
+                    $this->aliases[$alias] = 'http://axschema.org/' . $field;
+                    if (empty($counts[$alias])) $counts[$alias] = 0;
+                    $counts[$alias] += 1;
+                    ${$type}[] = $alias;
+                }
+            }
+            foreach ($this->aliases as $alias => $ns) {
+                $params['openid.ax.type.' . $alias] = $ns;
+            }
+            foreach ($counts as $alias => $count) {
+                if ($count == 1) continue;
+                $params['openid.ax.count.' . $alias] = $count;
+            }
+
+            # Don't send empty ax.requied and ax.if_available.
+            # Google and possibly other providers refuse to support ax when one of these is empty.
+            if($required) {
+                $params['openid.ax.required'] = implode(',', $required);
+            }
+            if($optional) {
+                $params['openid.ax.if_available'] = implode(',', $optional);
+            }
+        }
+        return $params;
+    }
+
+    protected function authUrl_v1()
+    {
+	$returnUrl = $this->returnUrl;
+        # If we have an openid.delegate that is different from our claimed id,
+        # we need to somehow preserve the claimed id between requests.
+        # The simplest way is to just send it along with the return_to url.
+        if($this->identity != $this->claimed_id) {
+            $returnUrl .= (strpos($returnUrl, '?') ? '&' : '?') . 'openid.claimed_id=' . $this->claimed_id;
+        }
+
+        $params = array(
+            'openid.return_to'  => $returnUrl,
+            'openid.mode'       => 'checkid_setup',
+            'openid.identity'   => $this->identity,
+            'openid.trust_root' => $this->trustRoot,
+            ) + $this->sregParams();
+
+        return $this->build_url(parse_url($this->server)
+                               , array('query' => http_build_query($params, '', '&')));
+    }
+
+    protected function authUrl_v2($identifier_select)
+    {
+        $params = array(
+            'openid.ns'          => 'http://specs.openid.net/auth/2.0',
+            'openid.mode'        => 'checkid_setup',
+            'openid.return_to'   => $this->returnUrl,
+            'openid.realm'       => $this->trustRoot,
+        );
+        if ($this->ax) {
+            $params += $this->axParams();
+        }
+        if ($this->sreg) {
+            $params += $this->sregParams();
+        }
+        if (!$this->ax && !$this->sreg) {
+            # If OP doesn't advertise either SREG, nor AX, let's send them both
+            # in worst case we don't get anything in return.
+            $params += $this->axParams() + $this->sregParams();
+        }
+
+        if ($identifier_select) {
+            $params['openid.identity'] = $params['openid.claimed_id']
+                 = 'http://specs.openid.net/auth/2.0/identifier_select';
+        } else {
+            $params['openid.identity'] = $this->identity;
+            $params['openid.claimed_id'] = $this->claimed_id;
+        }
+
+        return $this->build_url(parse_url($this->server)
+                               , array('query' => http_build_query($params, '', '&')));
+    }
+
+    /**
+     * Returns authentication url. Usually, you want to redirect your user to it.
+     * @return String The authentication url.
+     * @param String $select_identifier Whether to request OP to select identity for an user in OpenID 2. Does not affect OpenID 1.
+     * @throws ErrorException
+     */
+    function authUrl($identifier_select = null)
+    {
+        if (!$this->server) $this->discover($this->identity);
+
+        if ($this->version == 2) {
+            if ($identifier_select === null) {
+                return $this->authUrl_v2($this->identifier_select);
+            }
+            return $this->authUrl_v2($identifier_select);
+        }
+        return $this->authUrl_v1();
+    }
+
+    /**
+     * Performs OpenID verification with the OP.
+     * @return Bool Whether the verification was successful.
+     * @throws ErrorException
+     */
+    function validate()
+    {
+        $this->claimed_id = isset($this->data['openid_claimed_id'])?$this->data['openid_claimed_id']:$this->data['openid_identity'];
+        $params = array(
+            'openid.assoc_handle' => $this->data['openid_assoc_handle'],
+            'openid.signed'       => $this->data['openid_signed'],
+            'openid.sig'          => $this->data['openid_sig'],
+            );
+
+        if (isset($this->data['openid_ns'])) {
+            # We're dealing with an OpenID 2.0 server, so let's set an ns
+            # Even though we should know location of the endpoint,
+            # we still need to verify it by discovery, so $server is not set here
+            $params['openid.ns'] = 'http://specs.openid.net/auth/2.0';
+        } elseif (isset($this->data['openid_claimed_id'])
+            && $this->data['openid_claimed_id'] != $this->data['openid_identity']
+        ) {
+            # If it's an OpenID 1 provider, and we've got claimed_id,
+            # we have to append it to the returnUrl, like authUrl_v1 does.
+            $this->returnUrl .= (strpos($this->returnUrl, '?') ? '&' : '?')
+                             .  'openid.claimed_id=' . $this->claimed_id;
+        }
+
+        if ($this->data['openid_return_to'] != $this->returnUrl) {
+            # The return_to url must match the url of current request.
+            # I'm assuing that noone will set the returnUrl to something that doesn't make sense.
+            return false;
+        }
+
+        $server = $this->discover($this->claimed_id);
+
+        foreach (explode(',', $this->data['openid_signed']) as $item) {
+            # Checking whether magic_quotes_gpc is turned on, because
+            # the function may fail if it is. For example, when fetching
+            # AX namePerson, it might containg an apostrophe, which will be escaped.
+            # In such case, validation would fail, since we'd send different data than OP
+            # wants to verify. stripslashes() should solve that problem, but we can't
+            # use it when magic_quotes is off.
+            $value = $this->data['openid_' . str_replace('.','_',$item)];
+            $params['openid.' . $item] = get_magic_quotes_gpc() ? stripslashes($value) : $value;
+
+        }
+
+        $params['openid.mode'] = 'check_authentication';
+
+        $response = $this->request($server, 'POST', $params);
+
+        return preg_match('/is_valid\s*:\s*true/i', $response);
+    }
+
+    protected function getAxAttributes()
+    {
+        $alias = null;
+        if (isset($this->data['openid_ns_ax'])
+            && $this->data['openid_ns_ax'] != 'http://openid.net/srv/ax/1.0'
+        ) { # It's the most likely case, so we'll check it before
+            $alias = 'ax';
+        } else {
+            # 'ax' prefix is either undefined, or points to another extension,
+            # so we search for another prefix
+            foreach ($this->data as $key => $val) {
+                if (substr($key, 0, strlen('openid_ns_')) == 'openid_ns_'
+                    && $val == 'http://openid.net/srv/ax/1.0'
+                ) {
+                    $alias = substr($key, strlen('openid_ns_'));
+                    break;
+                }
+            }
+        }
+        if (!$alias) {
+            # An alias for AX schema has not been found,
+            # so there is no AX data in the OP's response
+            return array();
+        }
+
+        $attributes = array();
+        foreach ($this->data as $key => $value) {
+            $keyMatch = 'openid_' . $alias . '_value_';
+            if (substr($key, 0, strlen($keyMatch)) != $keyMatch) {
+                continue;
+            }
+            $key = substr($key, strlen($keyMatch));
+            if (!isset($this->data['openid_' . $alias . '_type_' . $key])) {
+                # OP is breaking the spec by returning a field without
+                # associated ns. This shouldn't happen, but it's better
+                # to check, than cause an E_NOTICE.
+                continue;
+            }
+            $key = substr($this->data['openid_' . $alias . '_type_' . $key],
+                          strlen('http://axschema.org/'));
+            $attributes[$key] = $value;
+        }
+        return $attributes;
+    }
+
+    protected function getSregAttributes()
+    {
+        $attributes = array();
+        $sreg_to_ax = array_flip(self::$ax_to_sreg);
+        foreach ($this->data as $key => $value) {
+            $keyMatch = 'openid_sreg_';
+            if (substr($key, 0, strlen($keyMatch)) != $keyMatch) {
+                continue;
+            }
+            $key = substr($key, strlen($keyMatch));
+            if (!isset($sreg_to_ax[$key])) {
+                # The field name isn't part of the SREG spec, so we ignore it.
+                continue;
+            }
+            $attributes[$sreg_to_ax[$key]] = $value;
+        }
+        return $attributes;
+    }
+
+    /**
+     * Gets AX/SREG attributes provided by OP. should be used only after successful validaton.
+     * Note that it does not guarantee that any of the required/optional parameters will be present,
+     * or that there will be no other attributes besides those specified.
+     * In other words. OP may provide whatever information it wants to.
+     *     * SREG names will be mapped to AX names.
+     *     * @return Array Array of attributes with keys being the AX schema names, e.g. 'contact/email'
+     * @see http://www.axschema.org/types/
+     */
+    function getAttributes()
+    {
+        if (isset($this->data['openid_ns'])
+            && $this->data['openid_ns'] == 'http://specs.openid.net/auth/2.0'
+        ) { # OpenID 2.0
+            # We search for both AX and SREG attributes, with AX taking precedence.
+            return $this->getAxAttributes() + $this->getSregAttributes();
+        }
+        return $this->getSregAttributes();
+    }
+}

Added: trunk/src/plugins/authopenid/etc/authopenid.ini
===================================================================
--- trunk/src/plugins/authopenid/etc/authopenid.ini	                        (rev 0)
+++ trunk/src/plugins/authopenid/etc/authopenid.ini	2011-03-21 13:48:31 UTC (rev 12864)
@@ -0,0 +1,14 @@
+[authcas]
+
+; By default, CAS is required and sufficient to log in
+;required = no
+;sufficient = yes
+
+; Allowed values: never, user-creation, login, every-page
+;sync_data_on = never
+
+; CAS parameters
+;cas_server = cas.example.com
+;cas_port = 443
+;cas_version = 2.0
+;validate_server_certificate = no

Added: trunk/src/plugins/authopenid/include/AuthOpenIDPlugin.class.php
===================================================================
--- trunk/src/plugins/authopenid/include/AuthOpenIDPlugin.class.php	                        (rev 0)
+++ trunk/src/plugins/authopenid/include/AuthOpenIDPlugin.class.php	2011-03-21 13:48:31 UTC (rev 12864)
@@ -0,0 +1,205 @@
+<?php
+/** External authentication via OpenID for FusionForge
+ * Copyright 2011, Roland Mas
+ * Copyright 2011, Olivier Berger & Institut Telecom
+ *
+ * This program was developped in the frame of the COCLICO project
+ * (http://www.coclico-project.org/) with financial support of the Paris
+ * Region council.
+ *
+ * This file is part of FusionForge
+ *
+ * This plugin, like FusionForge, is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * FusionForge is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with FusionForge; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  US
+ * 
+ */
+
+require_once $GLOBALS['gfcommon'].'include/User.class.php';
+
+// from lightopenid (http://code.google.com/p/lightopenid/)
+//require_once 'openid.php';
+
+/**
+ * Authentication manager for FusionForge CASification
+ *
+ */
+class AuthOpenIDPlugin extends ForgeAuthPlugin {
+	var $openid;
+	
+	function AuthOpenIDPlugin () {
+		global $gfconfig;
+		$this->ForgeAuthPlugin() ;
+		$this->name = "authopenid";
+		$this->text = "OpenID authentication";
+
+		$this->_addHook('display_auth_form');
+		$this->_addHook("check_auth_session");
+		$this->_addHook("fetch_authenticated_user");
+		$this->_addHook("close_auth_session");
+
+		$this->saved_login = '';
+		$this->saved_user = NULL;
+
+		//$this->openid = new LightOpenID;
+		$this->openid = FALSE;
+			
+		$this->declareConfigVars();
+	}
+
+	/*
+	private static $init = false;
+
+	function initCAS() {
+		if (self::$init) {
+			return;
+		}
+
+		phpCAS::client(forge_get_config('cas_version', $this->name),
+			       forge_get_config('cas_server', $this->name),
+			       intval(forge_get_config('cas_port', $this->name)),
+			       '');
+		if (forge_get_config('validate_server_certificate', $this->name)) {
+			// TODO
+		} else {
+			phpCAS::setNoCasServerValidation();
+		}
+
+		self::$init = true;
+	}
+*/
+	/**
+	 * Display a form to input credentials
+	 * @param unknown_type $params
+	 * @return boolean
+	 */
+	function displayAuthForm(&$params) {
+		if (!$this->isRequired() && !$this->isSufficient()) {
+			return true;
+		}
+		$return_to = $params['return_to'];
+
+		//$this->initCAS();
+
+		$result = '';
+
+		$result .= '<p>';
+		$result .= _('Cookies must be enabled past this point.');
+		$result .= '</p>';
+		
+		$result .= '<form action="' . util_make_url('/plugins/authopenid/post-login.php') . '" method="post">
+<input type="hidden" name="form_key" value="' . form_generate_key() . '"/>
+<input type="hidden" name="return_to" value="' . htmlspecialchars(stripslashes($return_to)) . '" />
+Your OpenID identifier: <input type="text" name="openid_identifier" /> 
+<input type="submit" name="login" value="' . _('Login via OpenID') . '" />
+<button>Submit</button>
+</form>';
+/*
+		$result .= '<form action="' . util_make_url('/plugins/authcas/post-login.php') . '" method="get">
+<input type="hidden" name="form_key" value="' . form_generate_key() . '"/>
+<input type="hidden" name="return_to" value="' . htmlspecialchars(stripslashes($return_to)) . '" />
+<p><input type="submit" name="login" value="' . _('Login via CAS') . '" />
+</p>
+</form>' ;
+*/
+		$params['html_snippets'][$this->name] = $result;
+
+		//$params['transparent_redirect_urls'][$this->name] = util_make_url('/plugins/authcas/post-login.php?return_to='.htmlspecialchars(stripslashes($return_to)).'&login=1');
+	}
+
+    /**
+	 * Is there a valid session?
+	 * @param unknown_type $params
+	 */
+	/*
+	function checkAuthSession(&$params) {
+		$this->initCAS();
+
+		$this->saved_user = NULL;
+		$user = NULL;
+
+		$user_id_from_cookie = $this->checkSessionCookie();
+		if ($user_id_from_cookie) {
+			$user = user_get_object($user_id_from_cookie);
+			$this->saved_user = $user;
+			$this->setSessionCookie();
+		} elseif (phpCAS::isAuthenticated()) {
+			$user = $this->startSession(phpCAS::getUser());
+		}
+		
+		if ($user) {
+			if ($this->isSufficient()) {
+				$this->saved_user = $user;
+				$params['results'][$this->name] = FORGE_AUTH_AUTHORITATIVE_ACCEPT;
+				
+			} else {
+				$params['results'][$this->name] = FORGE_AUTH_NOT_AUTHORITATIVE;
+			}
+		} else {
+			if ($this->isRequired()) {
+				$params['results'][$this->name] = FORGE_AUTH_AUTHORITATIVE_REJECT;
+			} else {
+				$params['results'][$this->name] = FORGE_AUTH_NOT_AUTHORITATIVE;
+			}
+		}
+	}
+*/
+	/**
+	 * What GFUser is logged in?
+	 * @param unknown_type $params
+	 */
+	/*
+	function fetchAuthUser(&$params) {
+		if ($this->saved_user && $this->isSufficient()) {
+			$params['results'] = $this->saved_user;
+		}
+	}
+
+	function closeAuthSession($params) {
+		$this->initCAS();
+
+		if ($this->isSufficient() || $this->isRequired()) {
+			$this->unsetSessionCookie();
+			// logs user out from CAS
+			// TODO : make it optional to not mess with other apps' SSO sessions with CAS
+			phpCAS::logoutWithRedirectService(util_make_url('/'));
+		} else {
+			return true;
+		}
+	}
+*/
+	/**
+	 * Terminate an authentication session
+	 * @param unknown_type $params
+	 * @return boolean
+	 */
+	protected function declareConfigVars() {
+		parent::declareConfigVars();
+/*
+		forge_define_config_item ('cas_server', $this->name, 'cas.example.com');
+		forge_define_config_item ('cas_port', $this->name, 443);
+		forge_define_config_item ('cas_version', $this->name, '2.0');
+
+		forge_define_config_item('validate_server_certificate', $this->name, 'no');
+		forge_set_config_item_bool('validate_server_certificate', $this->name);
+		*/
+	}
+
+}
+
+// Local Variables:
+// mode: php
+// c-file-style: "bsd"
+// End:
+
+?>

Added: trunk/src/plugins/authopenid/packaging/control/301plugin-authopenid
===================================================================
--- trunk/src/plugins/authopenid/packaging/control/301plugin-authopenid	                        (rev 0)
+++ trunk/src/plugins/authopenid/packaging/control/301plugin-authopenid	2011-03-21 13:48:31 UTC (rev 12864)
@@ -0,0 +1,4 @@
+Package: @PACKAGE at -plugin-authopenid
+Architecture: all
+Depends: @OLDPACKAGE at -common, @OLDPACKAGE at -db-postgresql | @OLDPACKAGE at -db, @OLDPACKAGE at -web-apache2 | @OLDPACKAGE at -web, ${misc:Depends}
+Description: collaborative development tool - OpenID consumer authentication plugin

Added: trunk/src/plugins/authopenid/packaging/control/301plugin-authopenid.shortdesc
===================================================================
--- trunk/src/plugins/authopenid/packaging/control/301plugin-authopenid.shortdesc	                        (rev 0)
+++ trunk/src/plugins/authopenid/packaging/control/301plugin-authopenid.shortdesc	2011-03-21 13:48:31 UTC (rev 12864)
@@ -0,0 +1,3 @@
+ This plugin contains an OpenID consumer authentication mechanism for
+ FusionForge. It allows users to authenticate against external OpenID
+ providers.

Added: trunk/src/plugins/authopenid/packaging/docs/plugin-authopenid
===================================================================
--- trunk/src/plugins/authopenid/packaging/docs/plugin-authopenid	                        (rev 0)
+++ trunk/src/plugins/authopenid/packaging/docs/plugin-authopenid	2011-03-21 13:48:31 UTC (rev 12864)
@@ -0,0 +1 @@
+plugins/authopenid/README

Added: trunk/src/plugins/authopenid/packaging/install/plugin-authopenid
===================================================================
--- trunk/src/plugins/authopenid/packaging/install/plugin-authopenid	                        (rev 0)
+++ trunk/src/plugins/authopenid/packaging/install/plugin-authopenid	2011-03-21 13:48:31 UTC (rev 12864)
@@ -0,0 +1,3 @@
+plugins/authopenid/include              usr/share/@OLDPACKAGE@/plugins/authopenid/
+plugins/authopenid/www              usr/share/@OLDPACKAGE@/plugins/authopenid/
+plugins/authopenid/etc/*.ini 	     etc/@PACKAGE@/config.ini.d/

Added: trunk/src/plugins/authopenid/packaging/links/plugin-authopenid
===================================================================
--- trunk/src/plugins/authopenid/packaging/links/plugin-authopenid	                        (rev 0)
+++ trunk/src/plugins/authopenid/packaging/links/plugin-authopenid	2011-03-21 13:48:31 UTC (rev 12864)
@@ -0,0 +1 @@
+/usr/share/@OLDPACKAGE@/plugins/authopenid/www /usr/share/@OLDPACKAGE@/www/plugins/authopenid

Added: trunk/src/plugins/authopenid/www/post-login.php
===================================================================
--- trunk/src/plugins/authopenid/www/post-login.php	                        (rev 0)
+++ trunk/src/plugins/authopenid/www/post-login.php	2011-03-21 13:48:31 UTC (rev 12864)
@@ -0,0 +1,109 @@
+<?php
+/**
+ * FusionForge AuthCas login page
+ *
+ * This is main login page. It takes care of different account states
+ * (by disallowing logging in with non-active account, with appropriate
+ * notice).
+ *
+ * Copyright 1999-2001 (c) VA Linux Systems
+ * Copyright 2011, Roland Mas
+ * Copyright 2011 Olivier Berger & Institut Telecom
+ *
+ * This file is part of FusionForge.
+ *
+ * FusionForge is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * FusionForge is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with FusionForge; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+// FIXME : WTF ?!?!?!?
+Header( "Expires: Wed, 11 Nov 1998 11:11:11 GMT"); 
+Header( "Cache-Control: no-cache"); 
+Header( "Cache-Control: must-revalidate"); 
+
+require_once('../../../www/env.inc.php');
+require_once $gfcommon.'include/pre.php';
+require_once('../../../www/include/login-form.php');
+
+// from lightopenid (http://code.google.com/p/lightopenid/)
+require_once 'openid.php';
+
+$plugin = plugin_get_object('authopenid');
+
+$return_to = getStringFromRequest('return_to');
+$login = getStringFromRequest('login');
+$openid_identifier = getStringFromRequest('openid_identifier');
+
+$feedback = htmlspecialchars(getStringFromRequest('feedback'));
+$warning_msg = htmlspecialchars(getStringFromRequest('warning_msg'));
+$error_msg = htmlspecialchars(getStringFromRequest('error_msg'));
+$triggered = getIntFromRequest('triggered');
+
+if (forge_get_config('use_ssl') && !session_issecure()) {
+	//force use of SSL for login
+	// redirect
+	header('Location: https://'.getStringFromServer('HTTP_HOST').getStringFromServer('REQUEST_URI'));
+}
+
+try {
+	
+	// initialize the OpenID lib handler which will read the posted args
+	$plugin->openid = new LightOpenID;
+	// check the 'openid_mode' that may be set on returning from OpenID provider
+	if(!$plugin->openid->mode) {
+		
+		// We're just called by the login form : redirect to the OpenID provider
+        if(isset($_POST['openid_identifier'])) {
+            $plugin->openid->identity = $_POST['openid_identifier'];
+            header('Location: ' . $plugin->openid->authUrl());
+        }
+        
+    // or we are called back by the OpenID provider
+    } elseif($openid->mode == 'cancel') {
+        echo 'User has canceled authentication!';
+    } else {
+    	
+    	// Authentication should have been attempted by OpenID provider
+    	if ($plugin->openid->validate()) {
+    		// If user successfully logged in to OpenID provider
+    		
+    		// initiate session
+	    	if ($plugin->isSufficient()) {
+				$plugin->startSession($plugin->openid->identity);
+			}
+			// redirect to the proper place in the forge
+			if ($return_to) {
+				validate_return_to($return_to);
+	
+				header ("Location: " . util_make_url($return_to));
+				exit;
+			} else {
+				header ("Location: " . util_make_url("/my"));
+				exit;
+			}
+		}
+    }
+    
+	// Otherwise, display the login form again
+	display_login_page($return_to, $triggered);
+        
+} catch(ErrorException $e) {
+    echo $e->getMessage();
+}
+// Local Variables:
+// mode: php
+// c-file-style: "bsd"
+// End:
+
+?>




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