From 9e9d77b4072de4f8c73e8bbade07a8f27734e4bd Mon Sep 17 00:00:00 2001 From: Florian Pritz Date: Sat, 6 Feb 2010 23:14:56 +0100 Subject: Initial commit Signed-off-by: Florian Pritz --- system/helpers/url_helper.php | 593 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 593 insertions(+) create mode 100644 system/helpers/url_helper.php (limited to 'system/helpers/url_helper.php') diff --git a/system/helpers/url_helper.php b/system/helpers/url_helper.php new file mode 100644 index 000000000..546552a69 --- /dev/null +++ b/system/helpers/url_helper.php @@ -0,0 +1,593 @@ +config->site_url($uri); + } +} + +// ------------------------------------------------------------------------ + +/** + * Base URL + * + * Returns the "base_url" item from your config file + * + * @access public + * @return string + */ +if ( ! function_exists('base_url')) +{ + function base_url() + { + $CI =& get_instance(); + return $CI->config->slash_item('base_url'); + } +} + +// ------------------------------------------------------------------------ + +/** + * 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 ''.$title.''; + } +} + +// ------------------------------------------------------------------------ + +/** + * Anchor Link - Pop-up version + * + * Creates an anchor based on the local URL. The link + * opens a new window based on the attributes specified. + * + * @access public + * @param string the URL + * @param string the link title + * @param mixed any attributes + * @return string + */ +if ( ! function_exists('anchor_popup')) +{ + function anchor_popup($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 "".$title.""; + } + + if ( ! is_array($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 "".$title.""; + } +} + +// ------------------------------------------------------------------------ + +/** + * Mailto Link + * + * @access public + * @param string the email address + * @param string the link title + * @param mixed any attributes + * @return string + */ +if ( ! function_exists('mailto')) +{ + function mailto($email, $title = '', $attributes = '') + { + $title = (string) $title; + + if ($title == "") + { + $title = $email; + } + + $attributes = _parse_attributes($attributes); + + return ''.$title.''; + } +} + +// ------------------------------------------------------------------------ + +/** + * Encoded Mailto Link + * + * Create a spam-protected mailto link written in Javascript + * + * @access public + * @param string the email address + * @param string the link title + * @param mixed any attributes + * @return string + */ +if ( ! function_exists('safe_mailto')) +{ + function safe_mailto($email, $title = '', $attributes = '') + { + $title = (string) $title; + + if ($title == "") + { + $title = $email; + } + + for ($i = 0; $i < 16; $i++) + { + $x[] = substr(' $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(); + + ?>http'. + $matches['4'][$i].'://'. + $matches['5'][$i]. + $matches['6'][$i].''. + $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 $str; + } +} + +// ------------------------------------------------------------------------ + +/** + * Prep URL + * + * Simply adds the http:// part if missing + * + * @access public + * @param string the URL + * @return string + */ +if ( ! function_exists('prep_url')) +{ + function prep_url($str = '') + { + if ($str == 'http://' OR $str == '') + { + return ''; + } + + if (substr($str, 0, 7) != 'http://' && substr($str, 0, 8) != 'https://') + { + $str = 'http://'.$str; + } + + return $str; + } +} + +// ------------------------------------------------------------------------ + +/** + * Create URL Title + * + * Takes a "title" string as input and creates a + * human-friendly URL string with either a dash + * or an underscore as the word separator. + * + * @access public + * @param string the string + * @param string the separator: dash, or underscore + * @return string + */ +if ( ! function_exists('url_title')) +{ + function url_title($str, $separator = 'dash', $lowercase = FALSE) + { + if ($separator == 'dash') + { + $search = '_'; + $replace = '-'; + } + else + { + $search = '-'; + $replace = '_'; + } + + $trans = array( + '&\#\d+?;' => '', + '&\S+?;' => '', + '\s+' => $replace, + '[^a-z0-9\-\._]' => '', + $replace.'+' => $replace, + $replace.'$' => $replace, + '^'.$replace => $replace, + '\.+$' => '' + ); + + $str = strip_tags($str); + + foreach ($trans as $key => $val) + { + $str = preg_replace("#".$key."#i", $val, $str); + } + + if ($lowercase === TRUE) + { + $str = strtolower($str); + } + + return trim(stripslashes($str)); + } +} + +// ------------------------------------------------------------------------ + +/** + * Header Redirect + * + * Header redirect in two flavors + * For very fine grained control over headers, you could use the Output + * Library's set_header() function. + * + * @access public + * @param string the URL + * @param string the method: location or redirect + * @return string + */ +if ( ! function_exists('redirect')) +{ + function redirect($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 */ \ No newline at end of file -- cgit v1.2.3-24-g4f1b