/system/helpers/url_helper.php
PHP | 523 lines | 259 code | 77 blank | 187 comment | 82 complexity | 858608a26fa91da8469f0b655c703c10 MD5 | raw file
- <?php if (!defined('BASEPATH')) exit('No direct script access allowed');
- /**
- * CodeIgniter
- *
- * An open source application development framework for PHP 5.1.6 or newer
- *
- * @package CodeIgniter
- * @author ExpressionEngine Dev Team
- * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc.
- * @license http://codeigniter.com/user_guide/license.html
- * @link http://codeigniter.com
- * @since Version 1.0
- * @filesource
- */
- // ------------------------------------------------------------------------
- /**
- * CodeIgniter URL Helpers
- *
- * @package CodeIgniter
- * @subpackage Helpers
- * @category Helpers
- * @author ExpressionEngine Dev Team
- * @link http://codeigniter.com/user_guide/helpers/url_helper.html
- */
- // ------------------------------------------------------------------------
- /**
- * Site URL
- *
- * Create a local URL based on your basepath. Segments can be passed via the
- * first parameter either as a string or an array.
- *
- * @access public
- * @param string
- * @return string
- */
- if (!function_exists('site_url')) {
- function site_url($uri = '') {
- $CI =& get_instance();
- return $CI->config->site_url($uri);
- }
- }
- // ------------------------------------------------------------------------
- /**
- * Base URL
- *
- * Create a local URL based on your basepath.
- * Segments can be passed in as a string or an array, same as site_url
- * or a URL to a file can be passed in, e.g. to an image file.
- *
- * @access public
- * @param string
- * @return string
- */
- if (!function_exists('base_url')) {
- function base_url($uri = '') {
- $CI =& get_instance();
- return $CI->config->base_url($uri);
- }
- }
- // ------------------------------------------------------------------------
- /**
- * Current URL
- *
- * Returns the full URL (including segments) of the page where this
- * function is placed
- *
- * @access public
- * @return string
- */
- if (!function_exists('current_url')) {
- function current_url() {
- $CI =& get_instance();
- return $CI->config->site_url($CI->uri->uri_string());
- }
- }
- // ------------------------------------------------------------------------
- /**
- * URL String
- *
- * Returns the URI segments.
- *
- * @access public
- * @return string
- */
- if (!function_exists('uri_string')) {
- function uri_string() {
- $CI =& get_instance();
- return $CI->uri->uri_string();
- }
- }
- // ------------------------------------------------------------------------
- /**
- * Index page
- *
- * Returns the "index_page" from your config file
- *
- * @access public
- * @return string
- */
- if (!function_exists('index_page')) {
- function index_page() {
- $CI =& get_instance();
- return $CI->config->item('index_page');
- }
- }
- // ------------------------------------------------------------------------
- /**
- * Anchor Link
- *
- * Creates an anchor based on the local URL.
- *
- * @access public
- * @param string the URL
- * @param string the link title
- * @param mixed any attributes
- * @return string
- */
- if (!function_exists('anchor')) {
- function anchor($uri = '', $title = '', $attributes = '') {
- $title = (string)$title;
- if (!is_array($uri)) {
- $site_url = (!preg_match('!^\w+://! i', $uri)) ? site_url($uri) : $uri;
- } else {
- $site_url = site_url($uri);
- }
- if ($title == '') {
- $title = $site_url;
- }
- if ($attributes != '') {
- $attributes = _parse_attributes($attributes);
- }
- return '<a href="' . $site_url . '"' . $attributes . '>' . $title . '</a>';
- }
- }
- // ------------------------------------------------------------------------
- /**
- * Anchor Link - Pop-up version
- *
- * Creates an anchor based on the local URL. The link
- * opens a new window based on the attributes specified.
- *
- * @access public
- * @param string the URL
- * @param string the link title
- * @param mixed any attributes
- * @return string
- */
- if (!function_exists('anchor_popup')) {
- function anchor_popup($uri = '', $title = '', $attributes = FALSE) {
- $title = (string)$title;
- $site_url = (!preg_match('!^\w+://! i', $uri)) ? site_url($uri) : $uri;
- if ($title == '') {
- $title = $site_url;
- }
- if ($attributes === FALSE) {
- return "<a href='javascript:void(0);' onclick=\"window.open('" . $site_url . "', '_blank');\">" . $title . "</a>";
- }
- if (!is_array($attributes)) {
- $attributes = array();
- }
- foreach (array('width' => '800', 'height' => '600', 'scrollbars' => 'yes', 'status' => 'yes', 'resizable' => 'yes', 'screenx' => '0', 'screeny' => '0',) as $key => $val) {
- $atts[$key] = (!isset($attributes[$key])) ? $val : $attributes[$key];
- unset($attributes[$key]);
- }
- if ($attributes != '') {
- $attributes = _parse_attributes($attributes);
- }
- return "<a href='javascript:void(0);' onclick=\"window.open('" . $site_url . "', '_blank', '" . _parse_attributes($atts, TRUE) . "');\"$attributes>" . $title . "</a>";
- }
- }
- // ------------------------------------------------------------------------
- /**
- * Mailto Link
- *
- * @access public
- * @param string the email address
- * @param string the link title
- * @param mixed any attributes
- * @return string
- */
- if (!function_exists('mailto')) {
- function mailto($email, $title = '', $attributes = '') {
- $title = (string)$title;
- if ($title == "") {
- $title = $email;
- }
- $attributes = _parse_attributes($attributes);
- return '<a href="mailto:' . $email . '"' . $attributes . '>' . $title . '</a>';
- }
- }
- // ------------------------------------------------------------------------
- /**
- * Encoded Mailto Link
- *
- * Create a spam-protected mailto link written in Javascript
- *
- * @access public
- * @param string the email address
- * @param string the link title
- * @param mixed any attributes
- * @return string
- */
- if (!function_exists('safe_mailto')) {
- function safe_mailto($email, $title = '', $attributes = '') {
- $title = (string)$title;
- if ($title == "") {
- $title = $email;
- }
- for ($i = 0; $i < 16; $i++) {
- $x[] = substr('<a href="mailto:', $i, 1);
- }
- for ($i = 0; $i < strlen($email); $i++) {
- $x[] = "|" . ord(substr($email, $i, 1));
- }
- $x[] = '"';
- if ($attributes != '') {
- if (is_array($attributes)) {
- foreach ($attributes as $key => $val) {
- $x[] = ' ' . $key . '="';
- for ($i = 0; $i < strlen($val); $i++) {
- $x[] = "|" . ord(substr($val, $i, 1));
- }
- $x[] = '"';
- }
- } else {
- for ($i = 0; $i < strlen($attributes); $i++) {
- $x[] = substr($attributes, $i, 1);
- }
- }
- }
- $x[] = '>';
- $temp = array();
- for ($i = 0; $i < strlen($title); $i++) {
- $ordinal = ord($title[$i]);
- if ($ordinal < 128) {
- $x[] = "|" . $ordinal;
- } else {
- if (count($temp) == 0) {
- $count = ($ordinal < 224) ? 2 : 3;
- }
- $temp[] = $ordinal;
- if (count($temp) == $count) {
- $number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64);
- $x[] = "|" . $number;
- $count = 1;
- $temp = array();
- }
- }
- }
- $x[] = '<';
- $x[] = '/';
- $x[] = 'a';
- $x[] = '>';
- $x = array_reverse($x);
- ob_start();
- ?>
- <script type="text/javascript">
- //<![CDATA[
- var l = new Array();
- <?php
- $i = 0;
- foreach ($x as $val){ ?>l[<?php echo $i++; ?>] = '<?php echo $val; ?>';<?php } ?>
- for (var i = l.length - 1; i >= 0; i = i - 1) {
- if (l[i].substring(0, 1) == '|') document.write("&#" + unescape(l[i].substring(1)) + ";");
- else document.write(unescape(l[i]));
- }
- //]]>
- </script><?php
- $buffer = ob_get_contents();
- ob_end_clean();
- return $buffer;
- }
- }
- // ------------------------------------------------------------------------
- /**
- * Auto-linker
- *
- * Automatically links URL and Email addresses.
- * Note: There's a bit of extra code here to deal with
- * URLs or emails that end in a period. We'll strip these
- * off and add them after the link.
- *
- * @access public
- * @param string the string
- * @param string the type: email, url, or both
- * @param bool whether to create pop-up links
- * @return string
- */
- if (!function_exists('auto_link')) {
- function auto_link($str, $type = 'both', $popup = FALSE) {
- if ($type != 'email') {
- if (preg_match_all("#(^|\s|\()((http(s?)://)|(www\.))(\w+[^\s\)\<]+)#i", $str, $matches)) {
- $pop = ($popup == TRUE) ? " target=\"_blank\" " : "";
- for ($i = 0; $i < count($matches['0']); $i++) {
- $period = '';
- if (preg_match("|\.$|", $matches['6'][$i])) {
- $period = '.';
- $matches['6'][$i] = substr($matches['6'][$i], 0, -1);
- }
- $str = str_replace($matches['0'][$i],
- $matches['1'][$i] . '<a href="http' .
- $matches['4'][$i] . '://' .
- $matches['5'][$i] .
- $matches['6'][$i] . '"' . $pop . '>http' .
- $matches['4'][$i] . '://' .
- $matches['5'][$i] .
- $matches['6'][$i] . '</a>' .
- $period, $str);
- }
- }
- }
- if ($type != 'url') {
- if (preg_match_all("/([a-zA-Z0-9_\.\-\+]+)@([a-zA-Z0-9\-]+)\.([a-zA-Z0-9\-\.]*)/i", $str, $matches)) {
- for ($i = 0; $i < count($matches['0']); $i++) {
- $period = '';
- if (preg_match("|\.$|", $matches['3'][$i])) {
- $period = '.';
- $matches['3'][$i] = substr($matches['3'][$i], 0, -1);
- }
- $str = str_replace($matches['0'][$i], safe_mailto($matches['1'][$i] . '@' . $matches['2'][$i] . '.' . $matches['3'][$i]) . $period, $str);
- }
- }
- }
- return $str;
- }
- }
- // ------------------------------------------------------------------------
- /**
- * Prep URL
- *
- * Simply adds the http:// part if no scheme is included
- *
- * @access public
- * @param string the URL
- * @return string
- */
- if (!function_exists('prep_url')) {
- function prep_url($str = '') {
- if ($str == 'http://' OR $str == '') {
- return '';
- }
- $url = parse_url($str);
- if (!$url OR !isset($url['scheme'])) {
- $str = 'http://' . $str;
- }
- return $str;
- }
- }
- // ------------------------------------------------------------------------
- /**
- * Create URL Title
- *
- * Takes a "title" string as input and creates a
- * human-friendly URL string with a "separator" string
- * as the word separator.
- *
- * @access public
- * @param string the string
- * @param string the separator
- * @return string
- */
- if (!function_exists('url_title')) {
- function url_title($str, $separator = '-', $lowercase = FALSE) {
- if ($separator == 'dash') {
- $separator = '-';
- } else if ($separator == 'underscore') {
- $separator = '_';
- }
- $q_separator = preg_quote($separator);
- $trans = array(
- '&.+?;' => '',
- '[^a-z0-9 _-]' => '',
- '\s+' => $separator,
- '(' . $q_separator . ')+' => $separator
- );
- $str = strip_tags($str);
- foreach ($trans as $key => $val) {
- $str = preg_replace("#" . $key . "#i", $val, $str);
- }
- if ($lowercase === TRUE) {
- $str = strtolower($str);
- }
- return trim($str, $separator);
- }
- }
- // ------------------------------------------------------------------------
- /**
- * Header Redirect
- *
- * Header redirect in two flavors
- * For very fine grained control over headers, you could use the Output
- * Library's set_header() function.
- *
- * @access public
- * @param string the URL
- * @param string the method: location or redirect
- * @return string
- */
- if (!function_exists('redirect')) {
- function redirect($uri = '', $method = 'location', $http_response_code = 302) {
- if (!preg_match('#^https?://#i', $uri)) {
- $uri = site_url($uri);
- }
- switch ($method) {
- case 'refresh' :
- header("Refresh:0;url=" . $uri);
- break;
- default :
- header("Location: " . $uri, TRUE, $http_response_code);
- break;
- }
- exit;
- }
- }
- // ------------------------------------------------------------------------
- /**
- * Parse out the attributes
- *
- * Some of the functions use this
- *
- * @access private
- * @param array
- * @param bool
- * @return string
- */
- if (!function_exists('_parse_attributes')) {
- function _parse_attributes($attributes, $javascript = FALSE) {
- if (is_string($attributes)) {
- return ($attributes != '') ? ' ' . $attributes : '';
- }
- $att = '';
- foreach ($attributes as $key => $val) {
- if ($javascript == TRUE) {
- $att .= $key . '=' . $val . ',';
- } else {
- $att .= ' ' . $key . '="' . $val . '"';
- }
- }
- if ($javascript == TRUE AND $att != '') {
- $att = substr($att, 0, -1);
- }
- return $att;
- }
- }
- /* End of file url_helper.php */
- /* Location: ./system/helpers/url_helper.php */