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17515512: JanRain php-openid library included, normalization fix
git-svn-id: http://xe-core.googlecode.com/svn/sandbox@5137 201d5d3c-b55e-5fd7-737f-ddc643e51545
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219 changed files with 41415 additions and 10 deletions
412
modules/member/php-openid-1.2.3/Auth/OpenID.php
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412
modules/member/php-openid-1.2.3/Auth/OpenID.php
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<?php
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/**
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* This is the PHP OpenID library by JanRain, Inc.
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*
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* This module contains core utility functionality used by the
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* library. See Consumer.php and Server.php for the consumer and
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* server implementations.
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*
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* PHP versions 4 and 5
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*
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* LICENSE: See the COPYING file included in this distribution.
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*
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* @package OpenID
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* @author JanRain, Inc. <openid@janrain.com>
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* @copyright 2005 Janrain, Inc.
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* @license http://www.gnu.org/copyleft/lesser.html LGPL
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*/
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/**
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* Require the fetcher code.
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*/
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require_once "Services/Yadis/PlainHTTPFetcher.php";
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require_once "Services/Yadis/ParanoidHTTPFetcher.php";
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require_once "Auth/OpenID/BigMath.php";
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/**
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* Status code returned by the server when the only option is to show
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* an error page, since we do not have enough information to redirect
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* back to the consumer. The associated value is an error message that
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* should be displayed on an HTML error page.
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*
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* @see Auth_OpenID_Server
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*/
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define('Auth_OpenID_LOCAL_ERROR', 'local_error');
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/**
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* Status code returned when there is an error to return in key-value
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* form to the consumer. The caller should return a 400 Bad Request
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* response with content-type text/plain and the value as the body.
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*
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* @see Auth_OpenID_Server
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*/
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define('Auth_OpenID_REMOTE_ERROR', 'remote_error');
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/**
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* Status code returned when there is a key-value form OK response to
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* the consumer. The value associated with this code is the
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* response. The caller should return a 200 OK response with
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* content-type text/plain and the value as the body.
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*
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* @see Auth_OpenID_Server
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*/
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define('Auth_OpenID_REMOTE_OK', 'remote_ok');
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/**
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* Status code returned when there is a redirect back to the
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* consumer. The value is the URL to redirect back to. The caller
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* should return a 302 Found redirect with a Location: header
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* containing the URL.
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*
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* @see Auth_OpenID_Server
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*/
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define('Auth_OpenID_REDIRECT', 'redirect');
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/**
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* Status code returned when the caller needs to authenticate the
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* user. The associated value is a {@link Auth_OpenID_ServerRequest}
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* object that can be used to complete the authentication. If the user
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* has taken some authentication action, use the retry() method of the
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* {@link Auth_OpenID_ServerRequest} object to complete the request.
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*
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* @see Auth_OpenID_Server
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*/
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define('Auth_OpenID_DO_AUTH', 'do_auth');
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/**
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* Status code returned when there were no OpenID arguments
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* passed. This code indicates that the caller should return a 200 OK
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* response and display an HTML page that says that this is an OpenID
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* server endpoint.
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*
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* @see Auth_OpenID_Server
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*/
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define('Auth_OpenID_DO_ABOUT', 'do_about');
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/**
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* Defines for regexes and format checking.
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*/
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define('Auth_OpenID_letters',
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"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
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define('Auth_OpenID_digits',
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"0123456789");
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define('Auth_OpenID_punct',
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"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~");
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if (Auth_OpenID_getMathLib() === null) {
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define('Auth_OpenID_NO_MATH_SUPPORT', true);
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}
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/**
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* The OpenID utility function class.
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*
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* @package OpenID
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* @access private
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*/
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class Auth_OpenID {
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/**
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* These namespaces are automatically fixed in query arguments by
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* Auth_OpenID::fixArgs.
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*/
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function getOpenIDNamespaces()
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{
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return array('openid',
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'sreg');
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}
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/**
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* Rename query arguments back to 'openid.' from 'openid_'
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*
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* @access private
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* @param array $args An associative array of URL query arguments
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*/
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function fixArgs($args)
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{
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foreach (array_keys($args) as $key) {
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$fixed = $key;
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if (preg_match('/^openid/', $key)) {
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foreach (Auth_OpenID::getOpenIDNamespaces() as $ns) {
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if (preg_match('/'.$ns.'_/', $key)) {
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$fixed = preg_replace('/'.$ns.'_/', $ns.'.', $fixed);
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}
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}
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if ($fixed != $key) {
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$val = $args[$key];
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unset($args[$key]);
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$args[$fixed] = $val;
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}
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}
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}
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return $args;
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}
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/**
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* Create dir_name as a directory if it does not exist. If it
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* exists, make sure that it is, in fact, a directory. Returns
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* true if the operation succeeded; false if not.
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*
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* @access private
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*/
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function ensureDir($dir_name)
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{
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if (is_dir($dir_name) || @mkdir($dir_name)) {
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return true;
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} else {
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if (Auth_OpenID::ensureDir(dirname($dir_name))) {
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return is_dir($dir_name) || @mkdir($dir_name);
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} else {
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return false;
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}
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}
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}
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/**
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* Convenience function for getting array values.
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*
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* @access private
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*/
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function arrayGet($arr, $key, $fallback = null)
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{
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if (is_array($arr)) {
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if (array_key_exists($key, $arr)) {
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return $arr[$key];
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} else {
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return $fallback;
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}
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} else {
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trigger_error("Auth_OpenID::arrayGet expected " .
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"array as first parameter", E_USER_WARNING);
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return false;
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}
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}
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/**
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* Implements the PHP 5 'http_build_query' functionality.
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*
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* @access private
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* @param array $data Either an array key/value pairs or an array
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* of arrays, each of which holding two values: a key and a value,
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* sequentially.
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* @return string $result The result of url-encoding the key/value
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* pairs from $data into a URL query string
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* (e.g. "username=bob&id=56").
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*/
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function httpBuildQuery($data)
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{
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$pairs = array();
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foreach ($data as $key => $value) {
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if (is_array($value)) {
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$pairs[] = urlencode($value[0])."=".urlencode($value[1]);
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} else {
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$pairs[] = urlencode($key)."=".urlencode($value);
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}
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}
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return implode("&", $pairs);
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}
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/**
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* "Appends" query arguments onto a URL. The URL may or may not
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* already have arguments (following a question mark).
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*
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* @param string $url A URL, which may or may not already have
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* arguments.
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* @param array $args Either an array key/value pairs or an array of
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* arrays, each of which holding two values: a key and a value,
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* sequentially. If $args is an ordinary key/value array, the
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* parameters will be added to the URL in sorted alphabetical order;
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* if $args is an array of arrays, their order will be preserved.
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* @return string $url The original URL with the new parameters added.
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*
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*/
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function appendArgs($url, $args)
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{
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if (count($args) == 0) {
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return $url;
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}
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// Non-empty array; if it is an array of arrays, use
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// multisort; otherwise use sort.
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if (array_key_exists(0, $args) &&
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is_array($args[0])) {
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// Do nothing here.
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} else {
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$keys = array_keys($args);
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sort($keys);
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$new_args = array();
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foreach ($keys as $key) {
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$new_args[] = array($key, $args[$key]);
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}
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$args = $new_args;
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}
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$sep = '?';
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if (strpos($url, '?') !== false) {
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$sep = '&';
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}
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return $url . $sep . Auth_OpenID::httpBuildQuery($args);
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}
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/**
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* Turn a string into an ASCII string.
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*
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* Replace non-ascii characters with a %-encoded, UTF-8
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* encoding. This function will fail if the input is a string and
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* there are non-7-bit-safe characters. It is assumed that the
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* caller will have already translated the input into a Unicode
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* character sequence, according to the encoding of the HTTP POST
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* or GET.
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*
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* Do not escape anything that is already 7-bit safe, so we do the
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* minimal transform on the identity URL
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*
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* @access private
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*/
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function quoteMinimal($s)
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{
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$res = array();
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for ($i = 0; $i < strlen($s); $i++) {
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$c = $s[$i];
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if ($c >= "\x80") {
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for ($j = 0; $j < count(utf8_encode($c)); $j++) {
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array_push($res, sprintf("%02X", ord($c[$j])));
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}
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} else {
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array_push($res, $c);
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}
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}
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return implode('', $res);
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}
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/**
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* Implements python's urlunparse, which is not available in PHP.
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* Given the specified components of a URL, this function rebuilds
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* and returns the URL.
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*
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* @access private
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* @param string $scheme The scheme (e.g. 'http'). Defaults to 'http'.
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* @param string $host The host. Required.
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* @param string $port The port.
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* @param string $path The path.
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* @param string $query The query.
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* @param string $fragment The fragment.
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* @return string $url The URL resulting from assembling the
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* specified components.
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*/
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function urlunparse($scheme, $host, $port = null, $path = '/',
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$query = '', $fragment = '')
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{
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if (!$scheme) {
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$scheme = 'http';
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}
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if (!$host) {
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return false;
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}
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if (!$path) {
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$path = '/';
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}
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$result = $scheme . "://" . $host;
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if ($port) {
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$result .= ":" . $port;
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}
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$result .= $path;
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if ($query) {
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$result .= "?" . $query;
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}
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if ($fragment) {
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$result .= "#" . $fragment;
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}
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return $result;
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}
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/**
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* Given a URL, this "normalizes" it by adding a trailing slash
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* and / or a leading http:// scheme where necessary. Returns
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* null if the original URL is malformed and cannot be normalized.
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*
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* @access private
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* @param string $url The URL to be normalized.
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* @return mixed $new_url The URL after normalization, or null if
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* $url was malformed.
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*/
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function normalizeUrl($url)
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{
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if ($url === null) {
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return null;
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}
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assert(is_string($url));
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$old_url = $url;
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$url = trim($url);
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if (strpos($url, "://") === false) {
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$url = "http://" . $url;
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}
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$parsed = @parse_url($url);
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if ($parsed === false) {
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return null;
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}
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$defaults = array(
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'scheme' => '',
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'host' => '',
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'path' => '',
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'query' => '',
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'fragment' => '',
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'port' => ''
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);
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$parsed = array_merge($defaults, $parsed);
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if (($parsed['scheme'] == '') ||
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($parsed['host'] == '')) {
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if ($parsed['path'] == '' &&
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$parsed['query'] == '' &&
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$parsed['fragment'] == '') {
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return null;
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}
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$url = 'http://' + $url;
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$parsed = parse_url($url);
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$parsed = array_merge($defaults, $parsed);
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}
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$tail = array_map(array('Auth_OpenID', 'quoteMinimal'),
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array($parsed['path'],
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$parsed['query'],
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$parsed['fragment']));
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if ($tail[0] == '') {
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$tail[0] = '/';
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}
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$url = Auth_OpenID::urlunparse($parsed['scheme'], $parsed['host'],
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$parsed['port'], $tail[0], $tail[1],
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$tail[2]);
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assert(is_string($url));
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return $url;
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}
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}
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?>
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