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594 lines
12 KiB
594 lines
12 KiB
<?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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