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1 | <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); |
2 | /** | |
3 | * CodeIgniter | |
4 | * | |
5 | * An open source application development framework for PHP 5.1.6 or newer | |
6 | * | |
7 | * @package CodeIgniter | |
8 | * @author ExpressionEngine Dev Team | |
9 | * @copyright Copyright (c) 2008 - 2011, 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 | * Create a local URL based on your basepath. | |
55 | * Segments can be passed in as a string or an array, same as site_url | |
56 | * or a URL to a file can be passed in, e.g. to an image file. | |
57 | * | |
58 | * @access public | |
59 | * @param string | |
60 | * @return string | |
61 | */ | |
62 | if ( ! function_exists('base_url')) | |
63 | { | |
64 | function base_url($uri = '') | |
65 | { | |
66 | $CI =& get_instance(); | |
67 | return $CI->config->base_url($uri); | |
68 | } | |
69 | } | |
70 | ||
71 | // ------------------------------------------------------------------------ | |
72 | ||
73 | /** | |
74 | * Current URL | |
75 | * | |
76 | * Returns the full URL (including segments) of the page where this | |
77 | * function is placed | |
78 | * | |
79 | * @access public | |
80 | * @return string | |
81 | */ | |
82 | if ( ! function_exists('current_url')) | |
83 | { | |
84 | function current_url() | |
85 | { | |
86 | $CI =& get_instance(); | |
87 | return $CI->config->site_url($CI->uri->uri_string()); | |
88 | } | |
89 | } | |
90 | ||
91 | // ------------------------------------------------------------------------ | |
92 | /** | |
93 | * URL String | |
94 | * | |
95 | * Returns the URI segments. | |
96 | * | |
97 | * @access public | |
98 | * @return string | |
99 | */ | |
100 | if ( ! function_exists('uri_string')) | |
101 | { | |
102 | function uri_string() | |
103 | { | |
104 | $CI =& get_instance(); | |
105 | return $CI->uri->uri_string(); | |
106 | } | |
107 | } | |
108 | ||
109 | // ------------------------------------------------------------------------ | |
110 | ||
111 | /** | |
112 | * Index page | |
113 | * | |
114 | * Returns the "index_page" from your config file | |
115 | * | |
116 | * @access public | |
117 | * @return string | |
118 | */ | |
119 | if ( ! function_exists('index_page')) | |
120 | { | |
121 | function index_page() | |
122 | { | |
123 | $CI =& get_instance(); | |
124 | return $CI->config->item('index_page'); | |
125 | } | |
126 | } | |
127 | ||
128 | // ------------------------------------------------------------------------ | |
129 | ||
130 | /** | |
131 | * Anchor Link | |
132 | * | |
133 | * Creates an anchor based on the local URL. | |
134 | * | |
135 | * @access public | |
136 | * @param string the URL | |
137 | * @param string the link title | |
138 | * @param mixed any attributes | |
139 | * @return string | |
140 | */ | |
141 | if ( ! function_exists('anchor')) | |
142 | { | |
143 | function anchor($uri = '', $title = '', $attributes = '') | |
144 | { | |
145 | $title = (string) $title; | |
146 | ||
147 | if ( ! is_array($uri)) | |
148 | { | |
149 | $site_url = ( ! preg_match('!^\w+://! i', $uri)) ? site_url($uri) : $uri; | |
150 | } | |
151 | else | |
152 | { | |
153 | $site_url = site_url($uri); | |
154 | } | |
155 | ||
156 | if ($title == '') | |
157 | { | |
158 | $title = $site_url; | |
159 | } | |
160 | ||
161 | if ($attributes != '') | |
162 | { | |
163 | $attributes = _parse_attributes($attributes); | |
164 | } | |
165 | ||
166 | return '<a href="'.$site_url.'"'.$attributes.'>'.$title.'</a>'; | |
167 | } | |
168 | } | |
169 | ||
170 | // ------------------------------------------------------------------------ | |
171 | ||
172 | /** | |
173 | * Anchor Link - Pop-up version | |
174 | * | |
175 | * Creates an anchor based on the local URL. The link | |
176 | * opens a new window based on the attributes specified. | |
177 | * | |
178 | * @access public | |
179 | * @param string the URL | |
180 | * @param string the link title | |
181 | * @param mixed any attributes | |
182 | * @return string | |
183 | */ | |
184 | if ( ! function_exists('anchor_popup')) | |
185 | { | |
186 | function anchor_popup($uri = '', $title = '', $attributes = FALSE) | |
187 | { | |
188 | $title = (string) $title; | |
189 | ||
190 | $site_url = ( ! preg_match('!^\w+://! i', $uri)) ? site_url($uri) : $uri; | |
191 | ||
192 | if ($title == '') | |
193 | { | |
194 | $title = $site_url; | |
195 | } | |
196 | ||
197 | if ($attributes === FALSE) | |
198 | { | |
199 | return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank');\">".$title."</a>"; | |
200 | } | |
201 | ||
202 | if ( ! is_array($attributes)) | |
203 | { | |
204 | $attributes = array(); | |
205 | } | |
206 | ||
207 | foreach (array('width' => '800', 'height' => '600', 'scrollbars' => 'yes', 'status' => 'yes', 'resizable' => 'yes', 'screenx' => '0', 'screeny' => '0', ) as $key => $val) | |
208 | { | |
209 | $atts[$key] = ( ! isset($attributes[$key])) ? $val : $attributes[$key]; | |
210 | unset($attributes[$key]); | |
211 | } | |
212 | ||
213 | if ($attributes != '') | |
214 | { | |
215 | $attributes = _parse_attributes($attributes); | |
216 | } | |
217 | ||
218 | return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank', '"._parse_attributes($atts, TRUE)."');\"$attributes>".$title."</a>"; | |
219 | } | |
220 | } | |
221 | ||
222 | // ------------------------------------------------------------------------ | |
223 | ||
224 | /** | |
225 | * Mailto Link | |
226 | * | |
227 | * @access public | |
228 | * @param string the email address | |
229 | * @param string the link title | |
230 | * @param mixed any attributes | |
231 | * @return string | |
232 | */ | |
233 | if ( ! function_exists('mailto')) | |
234 | { | |
235 | function mailto($email, $title = '', $attributes = '') | |
236 | { | |
237 | $title = (string) $title; | |
238 | ||
239 | if ($title == "") | |
240 | { | |
241 | $title = $email; | |
242 | } | |
243 | ||
244 | $attributes = _parse_attributes($attributes); | |
245 | ||
246 | return '<a href="mailto:'.$email.'"'.$attributes.'>'.$title.'</a>'; | |
247 | } | |
248 | } | |
249 | ||
250 | // ------------------------------------------------------------------------ | |
251 | ||
252 | /** | |
253 | * Encoded Mailto Link | |
254 | * | |
255 | * Create a spam-protected mailto link written in Javascript | |
256 | * | |
257 | * @access public | |
258 | * @param string the email address | |
259 | * @param string the link title | |
260 | * @param mixed any attributes | |
261 | * @return string | |
262 | */ | |
263 | if ( ! function_exists('safe_mailto')) | |
264 | { | |
265 | function safe_mailto($email, $title = '', $attributes = '') | |
266 | { | |
267 | $title = (string) $title; | |
268 | ||
269 | if ($title == "") | |
270 | { | |
271 | $title = $email; | |
272 | } | |
273 | ||
274 | for ($i = 0; $i < 16; $i++) | |
275 | { | |
276 | $x[] = substr('<a href="mailto:', $i, 1); | |
277 | } | |
278 | ||
279 | for ($i = 0; $i < strlen($email); $i++) | |
280 | { | |
281 | $x[] = "|".ord(substr($email, $i, 1)); | |
282 | } | |
283 | ||
284 | $x[] = '"'; | |
285 | ||
286 | if ($attributes != '') | |
287 | { | |
288 | if (is_array($attributes)) | |
289 | { | |
290 | foreach ($attributes as $key => $val) | |
291 | { | |
292 | $x[] = ' '.$key.'="'; | |
293 | for ($i = 0; $i < strlen($val); $i++) | |
294 | { | |
295 | $x[] = "|".ord(substr($val, $i, 1)); | |
296 | } | |
297 | $x[] = '"'; | |
298 | } | |
299 | } | |
300 | else | |
301 | { | |
302 | for ($i = 0; $i < strlen($attributes); $i++) | |
303 | { | |
304 | $x[] = substr($attributes, $i, 1); | |
305 | } | |
306 | } | |
307 | } | |
308 | ||
309 | $x[] = '>'; | |
310 | ||
311 | $temp = array(); | |
312 | for ($i = 0; $i < strlen($title); $i++) | |
313 | { | |
314 | $ordinal = ord($title[$i]); | |
315 | ||
316 | if ($ordinal < 128) | |
317 | { | |
318 | $x[] = "|".$ordinal; | |
319 | } | |
320 | else | |
321 | { | |
322 | if (count($temp) == 0) | |
323 | { | |
324 | $count = ($ordinal < 224) ? 2 : 3; | |
325 | } | |
326 | ||
327 | $temp[] = $ordinal; | |
328 | if (count($temp) == $count) | |
329 | { | |
330 | $number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64); | |
331 | $x[] = "|".$number; | |
332 | $count = 1; | |
333 | $temp = array(); | |
334 | } | |
335 | } | |
336 | } | |
337 | ||
338 | $x[] = '<'; $x[] = '/'; $x[] = 'a'; $x[] = '>'; | |
339 | ||
340 | $x = array_reverse($x); | |
341 | ob_start(); | |
342 | ||
343 | ?><script type="text/javascript"> | |
344 | //<![CDATA[ | |
345 | var l=new Array(); | |
346 | <?php | |
347 | $i = 0; | |
348 | foreach ($x as $val){ ?>l[<?php echo $i++; ?>]='<?php echo $val; ?>';<?php } ?> | |
349 | ||
350 | for (var i = l.length-1; i >= 0; i=i-1){ | |
351 | if (l[i].substring(0, 1) == '|') document.write("&#"+unescape(l[i].substring(1))+";"); | |
352 | else document.write(unescape(l[i]));} | |
353 | //]]> | |
354 | </script><?php | |
355 | ||
356 | $buffer = ob_get_contents(); | |
357 | ob_end_clean(); | |
358 | return $buffer; | |
359 | } | |
360 | } | |
361 | ||
362 | // ------------------------------------------------------------------------ | |
363 | ||
364 | /** | |
365 | * Auto-linker | |
366 | * | |
367 | * Automatically links URL and Email addresses. | |
368 | * Note: There's a bit of extra code here to deal with | |
369 | * URLs or emails that end in a period. We'll strip these | |
370 | * off and add them after the link. | |
371 | * | |
372 | * @access public | |
373 | * @param string the string | |
374 | * @param string the type: email, url, or both | |
375 | * @param bool whether to create pop-up links | |
376 | * @return string | |
377 | */ | |
378 | if ( ! function_exists('auto_link')) | |
379 | { | |
380 | function auto_link($str, $type = 'both', $popup = FALSE) | |
381 | { | |
382 | if ($type != 'email') | |
383 | { | |
384 | if (preg_match_all("#(^|\s|\()((http(s?)://)|(www\.))(\w+[^\s\)\<]+)#i", $str, $matches)) | |
385 | { | |
386 | $pop = ($popup == TRUE) ? " target=\"_blank\" " : ""; | |
387 | ||
388 | for ($i = 0; $i < count($matches['0']); $i++) | |
389 | { | |
390 | $period = ''; | |
391 | if (preg_match("|\.$|", $matches['6'][$i])) | |
392 | { | |
393 | $period = '.'; | |
394 | $matches['6'][$i] = substr($matches['6'][$i], 0, -1); | |
395 | } | |
396 | ||
397 | $str = str_replace($matches['0'][$i], | |
398 | $matches['1'][$i].'<a href="http'. | |
399 | $matches['4'][$i].'://'. | |
400 | $matches['5'][$i]. | |
401 | $matches['6'][$i].'"'.$pop.'>http'. | |
402 | $matches['4'][$i].'://'. | |
403 | $matches['5'][$i]. | |
404 | $matches['6'][$i].'</a>'. | |
405 | $period, $str); | |
406 | } | |
407 | } | |
408 | } | |
409 | ||
410 | if ($type != 'url') | |
411 | { | |
412 | if (preg_match_all("/([a-zA-Z0-9_\.\-\+]+)@([a-zA-Z0-9\-]+)\.([a-zA-Z0-9\-\.]*)/i", $str, $matches)) | |
413 | { | |
414 | for ($i = 0; $i < count($matches['0']); $i++) | |
415 | { | |
416 | $period = ''; | |
417 | if (preg_match("|\.$|", $matches['3'][$i])) | |
418 | { | |
419 | $period = '.'; | |
420 | $matches['3'][$i] = substr($matches['3'][$i], 0, -1); | |
421 | } | |
422 | ||
423 | $str = str_replace($matches['0'][$i], safe_mailto($matches['1'][$i].'@'.$matches['2'][$i].'.'.$matches['3'][$i]).$period, $str); | |
424 | } | |
425 | } | |
426 | } | |
427 | ||
428 | return $str; | |
429 | } | |
430 | } | |
431 | ||
432 | // ------------------------------------------------------------------------ | |
433 | ||
434 | /** | |
435 | * Prep URL | |
436 | * | |
437 | * Simply adds the http:// part if no scheme is included | |
438 | * | |
439 | * @access public | |
440 | * @param string the URL | |
441 | * @return string | |
442 | */ | |
443 | if ( ! function_exists('prep_url')) | |
444 | { | |
445 | function prep_url($str = '') | |
446 | { | |
447 | if ($str == 'http://' OR $str == '') | |
448 | { | |
449 | return ''; | |
450 | } | |
451 | ||
452 | $url = parse_url($str); | |
453 | ||
454 | if ( ! $url OR ! isset($url['scheme'])) | |
455 | { | |
456 | $str = 'http://'.$str; | |
457 | } | |
458 | ||
459 | return $str; | |
460 | } | |
461 | } | |
462 | ||
463 | // ------------------------------------------------------------------------ | |
464 | ||
465 | /** | |
466 | * Create URL Title | |
467 | * | |
468 | * Takes a "title" string as input and creates a | |
469 | * human-friendly URL string with a "separator" string | |
470 | * as the word separator. | |
471 | * | |
472 | * @access public | |
473 | * @param string the string | |
474 | * @param string the separator | |
475 | * @return string | |
476 | */ | |
477 | if ( ! function_exists('url_title')) | |
478 | { | |
479 | function url_title($str, $separator = '-', $lowercase = FALSE) | |
480 | { | |
481 | if ($separator == 'dash') | |
482 | { | |
483 | $separator = '-'; | |
484 | } | |
485 | else if ($separator == 'underscore') | |
486 | { | |
487 | $separator = '_'; | |
488 | } | |
489 | ||
490 | $q_separator = preg_quote($separator); | |
491 | ||
492 | $trans = array( | |
493 | '&.+?;' => '', | |
494 | '[^a-z0-9 _-]' => '', | |
495 | '\s+' => $separator, | |
496 | '('.$q_separator.')+' => $separator | |
497 | ); | |
498 | ||
499 | $str = strip_tags($str); | |
500 | ||
501 | foreach ($trans as $key => $val) | |
502 | { | |
503 | $str = preg_replace("#".$key."#i", $val, $str); | |
504 | } | |
505 | ||
506 | if ($lowercase === TRUE) | |
507 | { | |
508 | $str = strtolower($str); | |
509 | } | |
510 | ||
511 | return trim($str, $separator); | |
512 | } | |
513 | } | |
514 | ||
515 | // ------------------------------------------------------------------------ | |
516 | ||
517 | /** | |
518 | * Header Redirect | |
519 | * | |
520 | * Header redirect in two flavors | |
521 | * For very fine grained control over headers, you could use the Output | |
522 | * Library's set_header() function. | |
523 | * | |
524 | * @access public | |
525 | * @param string the URL | |
526 | * @param string the method: location or redirect | |
527 | * @return string | |
528 | */ | |
529 | if ( ! function_exists('redirect')) | |
530 | { | |
531 | function redirect($uri = '', $method = 'location', $http_response_code = 302) | |
532 | { | |
533 | if ( ! preg_match('#^https?://#i', $uri)) | |
534 | { | |
535 | $uri = site_url($uri); | |
536 | } | |
537 | ||
538 | switch($method) | |
539 | { | |
540 | case 'refresh' : header("Refresh:0;url=".$uri); | |
541 | break; | |
542 | default : header("Location: ".$uri, TRUE, $http_response_code); | |
543 | break; | |
544 | } | |
545 | exit; | |
546 | } | |
547 | } | |
548 | ||
549 | // ------------------------------------------------------------------------ | |
550 | ||
551 | /** | |
552 | * Parse out the attributes | |
553 | * | |
554 | * Some of the functions use this | |
555 | * | |
556 | * @access private | |
557 | * @param array | |
558 | * @param bool | |
559 | * @return string | |
560 | */ | |
561 | if ( ! function_exists('_parse_attributes')) | |
562 | { | |
563 | function _parse_attributes($attributes, $javascript = FALSE) | |
564 | { | |
565 | if (is_string($attributes)) | |
566 | { | |
567 | return ($attributes != '') ? ' '.$attributes : ''; | |
568 | } | |
569 | ||
570 | $att = ''; | |
571 | foreach ($attributes as $key => $val) | |
572 | { | |
573 | if ($javascript == TRUE) | |
574 | { | |
575 | $att .= $key . '=' . $val . ','; | |
576 | } | |
577 | else | |
578 | { | |
579 | $att .= ' ' . $key . '="' . $val . '"'; | |
580 | } | |
581 | } | |
582 | ||
583 | if ($javascript == TRUE AND $att != '') | |
584 | { | |
585 | $att = substr($att, 0, -1); | |
586 | } | |
587 | ||
588 | return $att; | |
589 | } | |
590 | } | |
591 | ||
592 | ||
593 | /* End of file url_helper.php */ | |
594 | /* Location: ./system/helpers/url_helper.php */ |