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2005 Aurelien 1 
<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
2 
/**
3 
 * CodeIgniter
4 
 *
5 
 * An open source application development framework for PHP 4.3.2 or newer
6 
 *
7 
 * @package		CodeIgniter
8 
 * @author		ExpressionEngine Dev Team
9 
 * @copyright	Copyright (c) 2008, EllisLab, Inc.
10 
 * @license		http://codeigniter.com/user_guide/license.html
11 
 * @link		http://codeigniter.com
12 
 * @since		Version 1.0
13 
 * @filesource
14 
 */
15
16 
// ------------------------------------------------------------------------
17
18 
/**
19 
 * CodeIgniter URL Helpers
20 
 *
21 
 * @package		CodeIgniter
22 
 * @subpackage	Helpers
23 
 * @category	Helpers
24 
 * @author		ExpressionEngine Dev Team
25 
 * @link		http://codeigniter.com/user_guide/helpers/url_helper.html
26 
 */
27
28 
// ------------------------------------------------------------------------
29
30 
/**
31 
 * Site URL
32 
 *
33 
 * Create a local URL based on your basepath. Segments can be passed via the
34 
 * first parameter either as a string or an array.
35 
 *
36 
 * @access	public
37 
 * @param	string
38 
 * @return	string
39 
 */
40 
if ( ! function_exists('site_url'))
41 
{
42 
	function site_url($uri = '')
43 
	{
44 
		$CI =& get_instance();
45 
		return $CI->config->site_url($uri);
46 
	}
47 
}
48
49 
// ------------------------------------------------------------------------
50
51 
/**
52 
 * Base URL
53 
 *
54 
 * Returns the "base_url" item from your config file
55 
 *
56 
 * @access	public
57 
 * @return	string
58 
 */
59 
if ( ! function_exists('base_url'))
60 
{
61 
	function base_url()
62 
	{
63 
		$CI =& get_instance();
64 
		return $CI->config->slash_item('base_url');
65 
	}
66 
}
67
68 
// ------------------------------------------------------------------------
69
70 
/**
71 
 * Current URL
72 
 *
73 
 * Returns the full URL (including segments) of the page where this
74 
 * function is placed
75 
 *
76 
 * @access	public
77 
 * @return	string
78 
 */
79 
if ( ! function_exists('current_url'))
80 
{
81 
	function current_url()
82 
	{
83 
		$CI =& get_instance();
84 
		return $CI->config->site_url($CI->uri->uri_string());
85 
	}
86 
}
87
88 
// ------------------------------------------------------------------------
89 
/**
90 
 * URL String
91 
 *
92 
 * Returns the URI segments.
93 
 *
94 
 * @access	public
95 
 * @return	string
96 
 */
97 
if ( ! function_exists('uri_string'))
98 
{
99 
	function uri_string()
100 
	{
101 
		$CI =& get_instance();
102 
		return $CI->uri->uri_string();
103 
	}
104 
}
105
106 
// ------------------------------------------------------------------------
107
108 
/**
109 
 * Index page
110 
 *
111 
 * Returns the "index_page" from your config file
112 
 *
113 
 * @access	public
114 
 * @return	string
115 
 */
116 
if ( ! function_exists('index_page'))
117 
{
118 
	function index_page()
119 
	{
120 
		$CI =& get_instance();
121 
		return $CI->config->item('index_page');
122 
	}
123 
}
124
125 
// ------------------------------------------------------------------------
126
127 
/**
128 
 * Anchor Link
129 
 *
130 
 * Creates an anchor based on the local URL.
131 
 *
132 
 * @access	public
133 
 * @param	string	the URL
134 
 * @param	string	the link title
135 
 * @param	mixed	any attributes
136 
 * @return	string
137 
 */
138 
if ( ! function_exists('anchor'))
139 
{
140 
	function anchor($uri = '', $title = '', $attributes = '')
141 
	{
142 
		$title = (string) $title;
143
144 
		if ( ! is_array($uri))
145 
		{
146 
			$site_url = ( ! preg_match('!^\w+://! i', $uri)) ? site_url($uri) : $uri;
147 
		}
148 
		else
149 
		{
150 
			$site_url = site_url($uri);
151 
		}
152
153 
		if ($title == '')
154 
		{
155 
			$title = $site_url;
156 
		}
157
158 
		if ($attributes != '')
159 
		{
160 
			$attributes = _parse_attributes($attributes);
161 
		}
162
163 
		return '<a href="'.$site_url.'"'.$attributes.'>'.$title.'</a>';
164 
	}
165 
}
166
167 
// ------------------------------------------------------------------------
168
169 
/**
170 
 * Anchor Link - Pop-up version
171 
 *
172 
 * Creates an anchor based on the local URL. The link
173 
 * opens a new window based on the attributes specified.
174 
 *
175 
 * @access	public
176 
 * @param	string	the URL
177 
 * @param	string	the link title
178 
 * @param	mixed	any attributes
179 
 * @return	string
180 
 */
181 
if ( ! function_exists('anchor_popup'))
182 
{
183 
	function anchor_popup($uri = '', $title = '', $attributes = FALSE)
184 
	{
185 
		$title = (string) $title;
186
187 
		$site_url = ( ! preg_match('!^\w+://! i', $uri)) ? site_url($uri) : $uri;
188
189 
		if ($title == '')
190 
		{
191 
			$title = $site_url;
192 
		}
193
194 
		if ($attributes === FALSE)
195 
		{
196 
			return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank');\">".$title."</a>";
197 
		}
198
199 
		if ( ! is_array($attributes))
200 
		{
201 
			$attributes = array();
202 
		}
203
204 
		foreach (array('width' => '800', 'height' => '600', 'scrollbars' => 'yes', 'status' => 'yes', 'resizable' => 'yes', 'screenx' => '0', 'screeny' => '0', ) as $key => $val)
205 
		{
206 
			$atts[$key] = ( ! isset($attributes[$key])) ? $val : $attributes[$key];
207 
			unset($attributes[$key]);
208 
		}
209
210 
		if ($attributes != '')
211 
		{
212 
			$attributes = _parse_attributes($attributes);
213 
		}
214
215 
		return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank', '"._parse_attributes($atts, TRUE)."');\"$attributes>".$title."</a>";
216 
	}
217 
}
218
219 
// ------------------------------------------------------------------------
220
221 
/**
222 
 * Mailto Link
223 
 *
224 
 * @access	public
225 
 * @param	string	the email address
226 
 * @param	string	the link title
227 
 * @param	mixed 	any attributes
228 
 * @return	string
229 
 */
230 
if ( ! function_exists('mailto'))
231 
{
232 
	function mailto($email, $title = '', $attributes = '')
233 
	{
234 
		$title = (string) $title;
235
236 
		if ($title == "")
237 
		{
238 
			$title = $email;
239 
		}
240
241 
		$attributes = _parse_attributes($attributes);
242
243 
		return '<a href="mailto:'.$email.'"'.$attributes.'>'.$title.'</a>';
244 
	}
245 
}
246
247 
// ------------------------------------------------------------------------
248
249 
/**
250 
 * Encoded Mailto Link
251 
 *
252 
 * Create a spam-protected mailto link written in Javascript
253 
 *
254 
 * @access	public
255 
 * @param	string	the email address
256 
 * @param	string	the link title
257 
 * @param	mixed 	any attributes
258 
 * @return	string
259 
 */
260 
if ( ! function_exists('safe_mailto'))
261 
{
262 
	function safe_mailto($email, $title = '', $attributes = '')
263 
	{
264 
		$title = (string) $title;
265
266 
		if ($title == "")
267 
		{
268 
			$title = $email;
269 
		}
270
271 
		for ($i = 0; $i < 16; $i++)
272 
		{
273 
			$x[] = substr('<a href="mailto:', $i, 1);
274 
		}
275
276 
		for ($i = 0; $i < strlen($email); $i++)
277 
		{
278 
			$x[] = "|".ord(substr($email, $i, 1));
279 
		}
280
281 
		$x[] = '"';
282
283 
		if ($attributes != '')
284 
		{
285 
			if (is_array($attributes))
286 
			{
287 
				foreach ($attributes as $key => $val)
288 
				{
289 
					$x[] =  ' '.$key.'="';
290 
					for ($i = 0; $i < strlen($val); $i++)
291 
					{
292 
						$x[] = "|".ord(substr($val, $i, 1));
293 
					}
294 
					$x[] = '"';
295 
				}
296 
			}
297 
			else
298 
			{
299 
				for ($i = 0; $i < strlen($attributes); $i++)
300 
				{
301 
					$x[] = substr($attributes, $i, 1);
302 
				}
303 
			}
304 
		}
305
306 
		$x[] = '>';
307
308 
		$temp = array();
309 
		for ($i = 0; $i < strlen($title); $i++)
310 
		{
311 
			$ordinal = ord($title[$i]);
312
313 
			if ($ordinal < 128)
314 
			{
315 
				$x[] = "|".$ordinal;
316 
			}
317 
			else
318 
			{
319 
				if (count($temp) == 0)
320 
				{
321 
					$count = ($ordinal < 224) ? 2 : 3;
322 
				}
323
324 
				$temp[] = $ordinal;
325 
				if (count($temp) == $count)
326 
				{
327 
					$number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64);
328 
					$x[] = "|".$number;
329 
					$count = 1;
330 
					$temp = array();
331 
				}
332 
			}
333 
		}
334
335 
		$x[] = '<'; $x[] = '/'; $x[] = 'a'; $x[] = '>';
336
337 
		$x = array_reverse($x);
338 
		ob_start();
339
340 
	?><script type="text/javascript">
341 
	//<![CDATA[
342 
	var l=new Array();
343 
	<?php
344 
	$i = 0;
345 
	foreach ($x as $val){ ?>l[<?php echo $i++; ?>]='<?php echo $val; ?>';<?php } ?>
346
347 
	for (var i = l.length-1; i >= 0; i=i-1){
348 
	if (l[i].substring(0, 1) == '|') document.write("&#"+unescape(l[i].substring(1))+";");
349 
	else document.write(unescape(l[i]));}
350 
	//]]>
351 
	</script><?php
352
353 
		$buffer = ob_get_contents();
354 
		ob_end_clean();
355 
		return $buffer;
356 
	}
357 
}
358
359 
// ------------------------------------------------------------------------
360
361 
/**
362 
 * Auto-linker
363 
 *
364 
 * Automatically links URL and Email addresses.
365 
 * Note: There's a bit of extra code here to deal with
366 
 * URLs or emails that end in a period.  We'll strip these
367 
 * off and add them after the link.
368 
 *
369 
 * @access	public
370 
 * @param	string	the string
371 
 * @param	string	the type: email, url, or both
372 
 * @param	bool 	whether to create pop-up links
373 
 * @return	string
374 
 */
375 
if ( ! function_exists('auto_link'))
376 
{
377 
	function auto_link($str, $type = 'both', $popup = FALSE)
378 
	{
379 
		if ($type != 'email')
380 
		{
381 
			if (preg_match_all("#(^|\s|\()((http(s?)://)|(www\.))(\w+[^\s\)\<]+)#i", $str, $matches))
382 
			{
383 
				$pop = ($popup == TRUE) ? " target=\"_blank\" " : "";
384
385 
				for ($i = 0; $i < sizeof($matches['0']); $i++)
386 
				{
387 
					$period = '';
388 
					if (preg_match("|\.$|", $matches['6'][$i]))
389 
					{
390 
						$period = '.';
391 
						$matches['6'][$i] = substr($matches['6'][$i], 0, -1);
392 
					}
393
394 
					$str = str_replace($matches['0'][$i],
395 
										$matches['1'][$i].'<a href="http'.
396 
										$matches['4'][$i].'://'.
397 
										$matches['5'][$i].
398 
										$matches['6'][$i].'"'.$pop.'>http'.
399 
										$matches['4'][$i].'://'.
400 
										$matches['5'][$i].
401 
										$matches['6'][$i].'</a>'.
402 
										$period, $str);
403 
				}
404 
			}
405 
		}
406
407 
		if ($type != 'url')
408 
		{
409 
			if (preg_match_all("/([a-zA-Z0-9_\.\-\+Å]+)@([a-zA-Z0-9\-]+)\.([a-zA-Z0-9\-\.]*)/i", $str, $matches))
410 
			{
411 
				for ($i = 0; $i < sizeof($matches['0']); $i++)
412 
				{
413 
					$period = '';
414 
					if (preg_match("|\.$|", $matches['3'][$i]))
415 
					{
416 
						$period = '.';
417 
						$matches['3'][$i] = substr($matches['3'][$i], 0, -1);
418 
					}
419
420 
					$str = str_replace($matches['0'][$i], safe_mailto($matches['1'][$i].'@'.$matches['2'][$i].'.'.$matches['3'][$i]).$period, $str);
421 
				}
422 
			}
423 
		}
424
425 
		return $str;
426 
	}
427 
}
428
429 
// ------------------------------------------------------------------------
430
431 
/**
432 
 * Prep URL
433 
 *
434 
 * Simply adds the http:// part if missing
435 
 *
436 
 * @access	public
437 
 * @param	string	the URL
438 
 * @return	string
439 
 */
440 
if ( ! function_exists('prep_url'))
441 
{
442 
	function prep_url($str = '')
443 
	{
444 
		if ($str == 'http://' OR $str == '')
445 
		{
446 
			return '';
447 
		}
448
449 
		if (substr($str, 0, 7) != 'http://' && substr($str, 0, 8) != 'https://')
450 
		{
451 
			$str = 'http://'.$str;
452 
		}
453
454 
		return $str;
455 
	}
456 
}
457
458 
// ------------------------------------------------------------------------
459
460 
/**
461 
 * Create URL Title
462 
 *
463 
 * Takes a "title" string as input and creates a
464 
 * human-friendly URL string with either a dash
465 
 * or an underscore as the word separator.
466 
 *
467 
 * @access	public
468 
 * @param	string	the string
469 
 * @param	string	the separator: dash, or underscore
470 
 * @return	string
471 
 */
472 
if ( ! function_exists('url_title'))
473 
{
474 
	function url_title($str, $separator = 'dash')
475 
	{
476 
		if ($separator == 'dash')
477 
		{
478 
			$search		= '_';
479 
			$replace	= '-';
480 
		}
481 
		else
482 
		{
483 
			$search		= '-';
484 
			$replace	= '_';
485 
		}
486
487 
		$trans = array(
488 
						'&\#\d+?;'				=> '',
489 
						'&\S+?;'				=> '',
490 
						'\s+'					=> $replace,
491 
						'[^a-z0-9\-\._]'		=> '',
492 
						$replace.'+'			=> $replace,
493 
						$replace.'$'			=> $replace,
494 
						'^'.$replace			=> $replace
495 
					  );
496
497 
		$str = strip_tags($str);
498
499 
		foreach ($trans as $key => $val)
500 
		{
501 
			$str = preg_replace("#".$key."#i", $val, $str);
502 
		}
503
504 
		return trim(stripslashes($str));
505 
	}
506 
}
507
508 
// ------------------------------------------------------------------------
509
510 
/**
511 
 * Header Redirect
512 
 *
513 
 * Header redirect in two flavors
514 
 * For very fine grained control over headers, you could use the Output
515 
 * Library's set_header() function.
516 
 *
517 
 * @access	public
518 
 * @param	string	the URL
519 
 * @param	string	the method: location or redirect
520 
 * @return	string
521 
 */
522 
if ( ! function_exists('redirect'))
523 
{
524 
	function redirect($uri = '', $method = 'location', $http_response_code = 302)
525 
	{
526 
		switch($method)
527 
		{
528 
			case 'refresh'	: header("Refresh:0;url=".site_url($uri));
529 
				break;
530 
			default			: header("Location: ".site_url($uri), TRUE, $http_response_code);
531 
				break;
532 
		}
533 
		exit;
534 
	}
535 
}
536
537 
// ------------------------------------------------------------------------
538
539 
/**
540 
 * Parse out the attributes
541 
 *
542 
 * Some of the functions use this
543 
 *
544 
 * @access	private
545 
 * @param	array
546 
 * @param	bool
547 
 * @return	string
548 
 */
549 
if ( ! function_exists('_parse_attributes'))
550 
{
551 
	function _parse_attributes($attributes, $javascript = FALSE)
552 
	{
553 
		if (is_string($attributes))
554 
		{
555 
			return ($attributes != '') ? ' '.$attributes : '';
556 
		}
557
558 
		$att = '';
559 
		foreach ($attributes as $key => $val)
560 
		{
561 
			if ($javascript == TRUE)
562 
			{
563 
				$att .= $key . '=' . $val . ',';
564 
			}
565 
			else
566 
			{
567 
				$att .= ' ' . $key . '="' . $val . '"';
568 
			}
569 
		}
570
571 
		if ($javascript == TRUE AND $att != '')
572 
		{
573 
			$att = substr($att, 0, -1);
574 
		}
575
576 
		return $att;
577 
	}
578 
}
579
580
581 
/* End of file url_helper.php */
582 
/* Location: ./system/helpers/url_helper.php */