Initial commit

Signed-off-by: Florian Pritz <bluewind@xssn.at>

1 files changed, 593 insertions, 0 deletions

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 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008 - 2009, 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
+ *
+ * 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 '<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 $str;
+	}
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * Prep URL
+ *
+ * Simply adds the http:// part if missing
+ *
+ * @access	public
+ * @param	string	the URL
+ * @return	string
+ */
+if ( ! function_exists('prep_url'))
+{
+	function prep_url($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