594 lines
12 KiB
PHP
594 lines
12 KiB
PHP
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP 5.1.6 or newer
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*
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* @package CodeIgniter
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* @author ExpressionEngine Dev Team
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* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
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* @license http://codeigniter.com/user_guide/license.html
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* @link http://codeigniter.com
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* @since Version 1.0
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* @filesource
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*/
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// ------------------------------------------------------------------------
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/**
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* CodeIgniter URL Helpers
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*
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* @package CodeIgniter
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* @subpackage Helpers
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* @category Helpers
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* @author ExpressionEngine Dev Team
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* @link http://codeigniter.com/user_guide/helpers/url_helper.html
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*/
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// ------------------------------------------------------------------------
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/**
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* Site URL
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*
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* Create a local URL based on your basepath. Segments can be passed via the
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* first parameter either as a string or an array.
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*
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* @access public
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* @param string
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* @return string
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*/
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if ( ! function_exists('site_url'))
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{
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function site_url($uri = '')
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{
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$CI =& get_instance();
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return $CI->config->site_url($uri);
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Base URL
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*
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* Create a local URL based on your basepath.
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* Segments can be passed in as a string or an array, same as site_url
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* or a URL to a file can be passed in, e.g. to an image file.
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*
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* @access public
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* @param string
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* @return string
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*/
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if ( ! function_exists('base_url'))
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{
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function base_url($uri = '')
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{
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$CI =& get_instance();
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return $CI->config->base_url($uri);
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Current URL
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*
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* Returns the full URL (including segments) of the page where this
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* function is placed
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*
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* @access public
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* @return string
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*/
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if ( ! function_exists('current_url'))
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{
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function current_url()
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{
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$CI =& get_instance();
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return $CI->config->site_url($CI->uri->uri_string());
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}
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}
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// ------------------------------------------------------------------------
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/**
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* URL String
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*
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* Returns the URI segments.
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*
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* @access public
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* @return string
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*/
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if ( ! function_exists('uri_string'))
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{
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function uri_string()
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{
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$CI =& get_instance();
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return $CI->uri->uri_string();
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Index page
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*
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* Returns the "index_page" from your config file
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*
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* @access public
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* @return string
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*/
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if ( ! function_exists('index_page'))
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{
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function index_page()
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{
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$CI =& get_instance();
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return $CI->config->item('index_page');
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Anchor Link
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*
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* Creates an anchor based on the local URL.
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*
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* @access public
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* @param string the URL
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* @param string the link title
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* @param mixed any attributes
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* @return string
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*/
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if ( ! function_exists('anchor'))
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{
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function anchor($uri = '', $title = '', $attributes = '')
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{
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$title = (string) $title;
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if ( ! is_array($uri))
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{
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$site_url = ( ! preg_match('!^\w+://! i', $uri)) ? site_url($uri) : $uri;
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}
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else
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{
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$site_url = site_url($uri);
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}
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if ($title == '')
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{
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$title = $site_url;
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}
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if ($attributes != '')
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{
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$attributes = _parse_attributes($attributes);
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}
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return '<a href="'.$site_url.'"'.$attributes.'>'.$title.'</a>';
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Anchor Link - Pop-up version
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*
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* Creates an anchor based on the local URL. The link
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* opens a new window based on the attributes specified.
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*
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* @access public
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* @param string the URL
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* @param string the link title
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* @param mixed any attributes
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* @return string
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*/
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if ( ! function_exists('anchor_popup'))
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{
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function anchor_popup($uri = '', $title = '', $attributes = FALSE)
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{
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$title = (string) $title;
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$site_url = ( ! preg_match('!^\w+://! i', $uri)) ? site_url($uri) : $uri;
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if ($title == '')
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{
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$title = $site_url;
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}
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if ($attributes === FALSE)
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{
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return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank');\">".$title."</a>";
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}
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if ( ! is_array($attributes))
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{
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$attributes = array();
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}
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foreach (array('width' => '800', 'height' => '600', 'scrollbars' => 'yes', 'status' => 'yes', 'resizable' => 'yes', 'screenx' => '0', 'screeny' => '0', ) as $key => $val)
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{
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$atts[$key] = ( ! isset($attributes[$key])) ? $val : $attributes[$key];
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unset($attributes[$key]);
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}
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if ($attributes != '')
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{
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$attributes = _parse_attributes($attributes);
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}
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return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank', '"._parse_attributes($atts, TRUE)."');\"$attributes>".$title."</a>";
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Mailto Link
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*
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* @access public
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* @param string the email address
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* @param string the link title
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* @param mixed any attributes
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* @return string
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*/
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if ( ! function_exists('mailto'))
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{
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function mailto($email, $title = '', $attributes = '')
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{
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$title = (string) $title;
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if ($title == "")
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{
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$title = $email;
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}
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$attributes = _parse_attributes($attributes);
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return '<a href="mailto:'.$email.'"'.$attributes.'>'.$title.'</a>';
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Encoded Mailto Link
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*
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* Create a spam-protected mailto link written in Javascript
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*
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* @access public
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* @param string the email address
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* @param string the link title
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* @param mixed any attributes
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* @return string
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*/
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if ( ! function_exists('safe_mailto'))
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{
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function safe_mailto($email, $title = '', $attributes = '')
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{
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$title = (string) $title;
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if ($title == "")
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{
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$title = $email;
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}
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for ($i = 0; $i < 16; $i++)
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{
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$x[] = substr('<a href="mailto:', $i, 1);
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}
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for ($i = 0; $i < strlen($email); $i++)
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{
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$x[] = "|".ord(substr($email, $i, 1));
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}
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$x[] = '"';
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if ($attributes != '')
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{
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if (is_array($attributes))
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{
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foreach ($attributes as $key => $val)
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{
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$x[] = ' '.$key.'="';
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for ($i = 0; $i < strlen($val); $i++)
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{
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$x[] = "|".ord(substr($val, $i, 1));
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}
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$x[] = '"';
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}
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}
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else
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{
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for ($i = 0; $i < strlen($attributes); $i++)
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{
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$x[] = substr($attributes, $i, 1);
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}
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}
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}
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$x[] = '>';
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$temp = array();
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for ($i = 0; $i < strlen($title); $i++)
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{
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$ordinal = ord($title[$i]);
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if ($ordinal < 128)
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{
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$x[] = "|".$ordinal;
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}
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else
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{
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if (count($temp) == 0)
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{
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$count = ($ordinal < 224) ? 2 : 3;
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}
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$temp[] = $ordinal;
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if (count($temp) == $count)
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{
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$number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64);
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$x[] = "|".$number;
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$count = 1;
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$temp = array();
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}
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}
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}
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$x[] = '<'; $x[] = '/'; $x[] = 'a'; $x[] = '>';
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$x = array_reverse($x);
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ob_start();
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?><script type="text/javascript">
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//<![CDATA[
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var l=new Array();
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<?php
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$i = 0;
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foreach ($x as $val){ ?>l[<?php echo $i++; ?>]='<?php echo $val; ?>';<?php } ?>
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for (var i = l.length-1; i >= 0; i=i-1){
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if (l[i].substring(0, 1) == '|') document.write("&#"+unescape(l[i].substring(1))+";");
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else document.write(unescape(l[i]));}
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//]]>
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</script><?php
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$buffer = ob_get_contents();
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ob_end_clean();
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return $buffer;
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Auto-linker
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*
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* Automatically links URL and Email addresses.
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* Note: There's a bit of extra code here to deal with
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* URLs or emails that end in a period. We'll strip these
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* off and add them after the link.
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*
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* @access public
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* @param string the string
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* @param string the type: email, url, or both
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* @param bool whether to create pop-up links
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* @return string
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*/
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if ( ! function_exists('auto_link'))
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{
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function auto_link($str, $type = 'both', $popup = FALSE)
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{
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if ($type != 'email')
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{
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if (preg_match_all("#(^|\s|\()((http(s?)://)|(www\.))(\w+[^\s\)\<]+)#i", $str, $matches))
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{
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$pop = ($popup == TRUE) ? " target=\"_blank\" " : "";
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for ($i = 0; $i < count($matches['0']); $i++)
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{
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$period = '';
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if (preg_match("|\.$|", $matches['6'][$i]))
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{
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$period = '.';
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$matches['6'][$i] = substr($matches['6'][$i], 0, -1);
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}
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$str = str_replace($matches['0'][$i],
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$matches['1'][$i].'<a href="http'.
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$matches['4'][$i].'://'.
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$matches['5'][$i].
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$matches['6'][$i].'"'.$pop.'>http'.
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$matches['4'][$i].'://'.
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$matches['5'][$i].
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$matches['6'][$i].'</a>'.
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$period, $str);
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}
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}
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}
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if ($type != 'url')
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{
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if (preg_match_all("/([a-zA-Z0-9_\.\-\+]+)@([a-zA-Z0-9\-]+)\.([a-zA-Z0-9\-\.]*)/i", $str, $matches))
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{
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for ($i = 0; $i < count($matches['0']); $i++)
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{
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$period = '';
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if (preg_match("|\.$|", $matches['3'][$i]))
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{
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$period = '.';
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$matches['3'][$i] = substr($matches['3'][$i], 0, -1);
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}
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$str = str_replace($matches['0'][$i], safe_mailto($matches['1'][$i].'@'.$matches['2'][$i].'.'.$matches['3'][$i]).$period, $str);
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}
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}
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}
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return $str;
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Prep URL
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*
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* Simply adds the http:// part if no scheme is included
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*
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* @access public
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* @param string the URL
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* @return string
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*/
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if ( ! function_exists('prep_url'))
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{
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function prep_url($str = '')
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{
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if ($str == 'http://' OR $str == '')
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{
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return '';
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}
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$url = parse_url($str);
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if ( ! $url OR ! isset($url['scheme']))
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{
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$str = 'http://'.$str;
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}
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return $str;
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Create URL Title
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*
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* Takes a "title" string as input and creates a
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* human-friendly URL string with a "separator" string
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* as the word separator.
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*
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* @access public
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* @param string the string
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* @param string the separator
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* @return string
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*/
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if ( ! function_exists('url_title'))
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{
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function url_title($str, $separator = '-', $lowercase = FALSE)
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{
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if ($separator == 'dash')
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{
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$separator = '-';
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}
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else if ($separator == 'underscore')
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{
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$separator = '_';
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}
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$q_separator = preg_quote($separator);
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$trans = array(
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'&.+?;' => '',
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'[^a-z0-9 _-]' => '',
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'\s+' => $separator,
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'('.$q_separator.')+' => $separator
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);
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$str = strip_tags($str);
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foreach ($trans as $key => $val)
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{
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$str = preg_replace("#".$key."#i", $val, $str);
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}
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if ($lowercase === TRUE)
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{
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$str = strtolower($str);
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}
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return trim($str, $separator);
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Header Redirect
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*
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* Header redirect in two flavors
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* For very fine grained control over headers, you could use the Output
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* Library's set_header() function.
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*
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* @access public
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* @param string the URL
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* @param string the method: location or redirect
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* @return string
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*/
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if ( ! function_exists('redirect'))
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{
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function redirect($uri = '', $method = 'location', $http_response_code = 302)
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{
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if ( ! preg_match('#^https?://#i', $uri))
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{
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$uri = site_url($uri);
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}
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switch($method)
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{
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case 'refresh' : header("Refresh:0;url=".$uri);
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break;
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default : header("Location: ".$uri, TRUE, $http_response_code);
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break;
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}
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exit;
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Parse out the attributes
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*
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* Some of the functions use this
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*
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* @access private
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* @param array
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* @param bool
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* @return string
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*/
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if ( ! function_exists('_parse_attributes'))
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{
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function _parse_attributes($attributes, $javascript = FALSE)
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{
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if (is_string($attributes))
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{
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return ($attributes != '') ? ' '.$attributes : '';
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}
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$att = '';
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foreach ($attributes as $key => $val)
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{
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if ($javascript == TRUE)
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{
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$att .= $key . '=' . $val . ',';
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}
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else
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{
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$att .= ' ' . $key . '="' . $val . '"';
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}
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}
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if ($javascript == TRUE AND $att != '')
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{
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$att = substr($att, 0, -1);
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}
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return $att;
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}
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}
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/* End of file url_helper.php */
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/* Location: ./system/helpers/url_helper.php */
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