Imported Upstream version 0.6.24+dfsg1
This commit is contained in:
Mario Fetka
252
lib/kohana/system/helpers/url.php
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252
lib/kohana/system/helpers/url.php
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<?php defined('SYSPATH') OR die('No direct access allowed.');
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/**
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* URL helper class.
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*
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* $Id: url.php 4029 2009-03-03 12:39:32Z Shadowhand $
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*
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* @package Core
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* @author Kohana Team
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* @copyright (c) 2007-2008 Kohana Team
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* @license http://kohanaphp.com/license.html
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*/
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class url_Core {
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/**
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* Fetches the current URI.
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*
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* @param boolean include the query string
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* @return string
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*/
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public static function current($qs = FALSE)
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{
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return ($qs === TRUE) ? Router::$complete_uri : Router::$current_uri;
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}
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/**
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* Base URL, with or without the index page.
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*
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* If protocol (and core.site_protocol) and core.site_domain are both empty,
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* then
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*
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* @param boolean include the index page
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* @param boolean non-default protocol
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* @return string
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*/
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public static function base($index = FALSE, $protocol = FALSE)
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{
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if ($protocol == FALSE)
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{
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// Use the default configured protocol
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$protocol = Kohana::config('core.site_protocol');
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}
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// Load the site domain
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$site_domain = (string) Kohana::config('core.site_domain', TRUE);
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if ($protocol == FALSE)
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{
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if ($site_domain === '' OR $site_domain[0] === '/')
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{
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// Use the configured site domain
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$base_url = $site_domain;
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}
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else
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{
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// Guess the protocol to provide full http://domain/path URL
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$base_url = ((empty($_SERVER['HTTPS']) OR $_SERVER['HTTPS'] === 'off') ? 'http' : 'https').'://'.$site_domain;
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}
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}
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else
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{
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if ($site_domain === '' OR $site_domain[0] === '/')
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{
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// Guess the server name if the domain starts with slash
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$base_url = $protocol.'://'.$_SERVER['HTTP_HOST'].$site_domain;
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}
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else
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{
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// Use the configured site domain
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$base_url = $protocol.'://'.$site_domain;
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}
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}
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if ($index === TRUE AND $index = Kohana::config('core.index_page'))
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{
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// Append the index page
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$base_url = $base_url.$index;
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}
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// Force a slash on the end of the URL
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return rtrim($base_url, '/').'/';
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}
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/**
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* Fetches an absolute site URL based on a URI segment.
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*
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* @param string site URI to convert
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* @param string non-default protocol
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* @return string
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*/
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public static function site($uri = '', $protocol = FALSE)
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{
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if ($path = trim(parse_url($uri, PHP_URL_PATH), '/'))
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{
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// Add path suffix
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$path .= Kohana::config('core.url_suffix');
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}
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if ($query = parse_url($uri, PHP_URL_QUERY))
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{
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// ?query=string
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$query = '?'.$query;
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}
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if ($fragment = parse_url($uri, PHP_URL_FRAGMENT))
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{
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// #fragment
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$fragment = '#'.$fragment;
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}
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// Concat the URL
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return url::base(TRUE, $protocol).$path.$query.$fragment;
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}
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/**
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* Return the URL to a file. Absolute filenames and relative filenames
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* are allowed.
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*
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* @param string filename
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* @param boolean include the index page
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* @return string
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*/
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public static function file($file, $index = FALSE)
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{
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if (strpos($file, '://') === FALSE)
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{
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// Add the base URL to the filename
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$file = url::base($index).$file;
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}
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return $file;
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}
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/**
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* Merges an array of arguments with the current URI and query string to
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* overload, instead of replace, the current query string.
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*
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* @param array associative array of arguments
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* @return string
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*/
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public static function merge(array $arguments)
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{
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if ($_GET === $arguments)
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{
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$query = Router::$query_string;
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}
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elseif ($query = http_build_query(array_merge($_GET, $arguments)))
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{
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$query = '?'.$query;
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}
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// Return the current URI with the arguments merged into the query string
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return Router::$current_uri.$query;
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}
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/**
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* Convert a phrase to a URL-safe title.
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*
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* @param string phrase to convert
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* @param string word separator (- or _)
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* @return string
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*/
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public static function title($title, $separator = '-')
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{
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$separator = ($separator === '-') ? '-' : '_';
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// Replace accented characters by their unaccented equivalents
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$title = utf8::transliterate_to_ascii($title);
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// Remove all characters that are not the separator, a-z, 0-9, or whitespace
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$title = preg_replace('/[^'.$separator.'a-z0-9\s]+/', '', strtolower($title));
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// Replace all separator characters and whitespace by a single separator
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$title = preg_replace('/['.$separator.'\s]+/', $separator, $title);
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// Trim separators from the beginning and end
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return trim($title, $separator);
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}
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/**
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* Sends a page redirect header and runs the system.redirect Event.
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*
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* @param mixed string site URI or URL to redirect to, or array of strings if method is 300
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* @param string HTTP method of redirect
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* @return void
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*/
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public static function redirect($uri = '', $method = '302')
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{
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if (Event::has_run('system.send_headers'))
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{
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return FALSE;
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}
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$codes = array
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(
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'refresh' => 'Refresh',
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'300' => 'Multiple Choices',
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'301' => 'Moved Permanently',
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'302' => 'Found',
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'303' => 'See Other',
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'304' => 'Not Modified',
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'305' => 'Use Proxy',
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'307' => 'Temporary Redirect'
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);
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// Validate the method and default to 302
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$method = isset($codes[$method]) ? (string) $method : '302';
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if ($method === '300')
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{
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$uri = (array) $uri;
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$output = '<ul>';
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foreach ($uri as $link)
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{
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$output .= '<li>'.html::anchor($link).'</li>';
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}
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$output .= '</ul>';
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// The first URI will be used for the Location header
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$uri = $uri[0];
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}
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else
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{
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$output = '<p>'.html::anchor($uri).'</p>';
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}
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// Run the redirect event
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Event::run('system.redirect', $uri);
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if (strpos($uri, '://') === FALSE)
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{
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// HTTP headers expect absolute URLs
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$uri = url::site($uri, request::protocol());
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}
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if ($method === 'refresh')
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{
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header('Refresh: 0; url='.$uri);
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}
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else
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{
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header('HTTP/1.1 '.$method.' '.$codes[$method]);
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header('Location: '.$uri);
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}
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// We are about to exit, so run the send_headers event
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Event::run('system.send_headers');
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exit('<h1>'.$method.' - '.$codes[$method].'</h1>'.$output);
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}
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} // End url
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