From eba717f95f586d2538007bd18da6e9b32b076c30 Mon Sep 17 00:00:00 2001
From: Bharat Mediratta <bharat@menalto.com>
Date: Fri, 31 Oct 2008 22:12:14 +0000
Subject: Merge over vendor code.

git-svn-id: http://gallery.svn.sourceforge.net/svnroot/gallery/trunk/eval/gx/gallery3/trunk@18408 57fcd75e-5312-0410-8df3-f5eb6fbb1595
---
 kohana/helpers/url.php | 247 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 247 insertions(+)
 create mode 100644 kohana/helpers/url.php

(limited to 'kohana/helpers/url.php')

diff --git a/kohana/helpers/url.php b/kohana/helpers/url.php
new file mode 100644
index 00000000..12453936
--- /dev/null
+++ b/kohana/helpers/url.php
@@ -0,0 +1,247 @@
+<?php defined('SYSPATH') or die('No direct script access.');
+/**
+ * URL helper class.
+ *
+ * $Id$
+ *
+ * @package    Core
+ * @author     Kohana Team
+ * @copyright  (c) 2007-2008 Kohana Team
+ * @license    http://kohanaphp.com/license.html
+ */
+class url_Core {
+
+	/**
+	 * Fetches the current URI.
+	 *
+	 * @param   boolean  include the query string
+	 * @return  string
+	 */
+	public static function current($qs = FALSE)
+	{
+		return ($qs === TRUE) ? Router::$complete_uri : Router::$current_uri;
+	}
+
+	/**
+	 * Base URL, with or without the index page.
+	 *
+	 * If protocol (and core.site_protocol) and core.site_domain are both empty,
+	 * then
+	 *
+	 * @param   boolean  include the index page
+	 * @param   boolean  non-default protocol
+	 * @return  string
+	 */
+	public static function base($index = FALSE, $protocol = FALSE)
+	{
+		if ($protocol == FALSE)
+		{
+			// Use the default configured protocol
+			$protocol = Kohana::config('core.site_protocol');
+		}
+
+		// Load the site domain
+		$site_domain = (string) Kohana::config('core.site_domain', TRUE);
+
+		if ($protocol == FALSE)
+		{
+			if ($site_domain === '' OR $site_domain[0] === '/')
+			{
+				// Use the configured site domain
+				$base_url = $site_domain;
+			}
+			else
+			{
+				// Guess the protocol to provide full http://domain/path URL
+				$base_url = ((empty($_SERVER['HTTPS']) OR $_SERVER['HTTPS'] === 'off') ? 'http' : 'https').'://'.$site_domain;
+			}
+		}
+		else
+		{
+			if ($site_domain === '' OR $site_domain[0] === '/')
+			{
+				// Guess the server name if the domain starts with slash
+				$base_url = $protocol.'://'.$_SERVER['HTTP_HOST'].$site_domain;
+			}
+			else
+			{
+				// Use the configured site domain
+				$base_url = $protocol.'://'.$site_domain;
+			}
+		}
+
+		if ($index === TRUE AND $index = Kohana::config('core.index_page'))
+		{
+			// Append the index page
+			$base_url = $base_url.$index;
+		}
+
+		// Force a slash on the end of the URL
+		return rtrim($base_url, '/').'/';
+	}
+
+	/**
+	 * Fetches an absolute site URL based on a URI segment.
+	 *
+	 * @param   string  site URI to convert
+	 * @param   string  non-default protocol
+	 * @return  string
+	 */
+	public static function site($uri = '', $protocol = FALSE)
+	{
+		if ($path = trim(parse_url($uri, PHP_URL_PATH), '/'))
+		{
+			// Add path suffix
+			$path .= Kohana::config('core.url_suffix');
+		}
+
+		if ($query = parse_url($uri, PHP_URL_QUERY))
+		{
+			// ?query=string
+			$query = '?'.$query;
+		}
+
+		if ($fragment = parse_url($uri, PHP_URL_FRAGMENT))
+		{
+			// #fragment
+			$fragment =  '#'.$fragment;
+		}
+
+		// Concat the URL
+		return url::base(TRUE, $protocol).$path.$query.$fragment;
+	}
+
+	/**
+	 * Return the URL to a file. Absolute filenames and relative filenames
+	 * are allowed.
+	 *
+	 * @param   string   filename
+	 * @param   boolean  include the index page
+	 * @return  string
+	 */
+	public static function file($file, $index = FALSE)
+	{
+		if (strpos($file, '://') === FALSE)
+		{
+			// Add the base URL to the filename
+			$file = url::base($index).$file;
+		}
+
+		return $file;
+	}
+
+	/**
+	 * Merges an array of arguments with the current URI and query string to
+	 * overload, instead of replace, the current query string.
+	 *
+	 * @param   array   associative array of arguments
+	 * @return  string
+	 */
+	public static function merge(array $arguments)
+	{
+		if ($_GET === $arguments)
+		{
+			$query = Router::$query_string;
+		}
+		elseif ($query = http_build_query(array_merge($_GET, $arguments)))
+		{
+			$query = '?'.$query;
+		}
+
+		// Return the current URI with the arguments merged into the query string
+		return Router::$current_uri.$query;
+	}
+
+	/**
+	 * Convert a phrase to a URL-safe title.
+	 *
+	 * @param   string  phrase to convert
+	 * @param   string  word separator (- or _)
+	 * @return  string
+	 */
+	public static function title($title, $separator = '-')
+	{
+		$separator = ($separator === '-') ? '-' : '_';
+
+		// Replace accented characters by their unaccented equivalents
+		$title = utf8::transliterate_to_ascii($title);
+
+		// Remove all characters that are not the separator, a-z, 0-9, or whitespace
+		$title = preg_replace('/[^'.$separator.'a-z0-9\s]+/', '', strtolower($title));
+
+		// Replace all separator characters and whitespace by a single separator
+		$title = preg_replace('/['.$separator.'\s]+/', $separator, $title);
+
+		// Trim separators from the beginning and end
+		return trim($title, $separator);
+	}
+
+	/**
+	 * Sends a page redirect header.
+	 *
+	 * @param  mixed   string site URI or URL to redirect to, or array of strings if method is 300
+	 * @param  string  HTTP method of redirect
+	 * @return void
+	 */
+	public static function redirect($uri = '', $method = '302')
+	{
+		if (Event::has_run('system.send_headers'))
+			return;
+
+		$uri = (array) $uri;
+
+		for ($i = 0, $count_uri = count($uri); $i < $count_uri; $i++)
+		{
+			if (strpos($uri[$i], '://') === FALSE)
+			{
+				$uri[$i] = url::site($uri[$i]);
+			}
+		}
+
+		if ($method == '300')
+		{
+			if ($count_uri > 0)
+			{
+				header('HTTP/1.1 300 Multiple Choices');
+				header('Location: '.$uri[0]);
+
+				$choices = '';
+				foreach ($uri as $href)
+				{
+					$choices .= '<li><a href="'.$href.'">'.$href.'</a></li>';
+				}
+
+				exit('<h1>301 - Multiple Choices:</h1><ul>'.$choices.'</ul>');
+			}
+		}
+		else
+		{
+			$uri = $uri[0];
+
+			if ($method == 'refresh')
+			{
+				header('Refresh: 0; url='.$uri);
+			}
+			else
+			{
+				$codes = array
+				(
+					'301' => 'Moved Permanently',
+					'302' => 'Found',
+					'303' => 'See Other',
+					'304' => 'Not Modified',
+					'305' => 'Use Proxy',
+					'307' => 'Temporary Redirect'
+				);
+
+				$method = isset($codes[$method]) ? $method : '302';
+
+				header('HTTP/1.1 '.$method.' '.$codes[$method]);
+				header('Location: '.$uri);
+			}
+
+			exit('<h1>'.$method.' - '.$codes[$method].'</h1><p><a href="'.$uri.'">'.$uri.'</a></p>');
+		}
+	}
+
+} // End url
\ No newline at end of file
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