7 // Determine the allowed character set in short URLs
\r
8 function yourls_get_shorturl_charset() {
\r
9 static $charset = null;
\r
10 if( $charset !== null )
\r
13 if( !defined('YOURLS_URL_CONVERT') ) {
\r
14 $charset = '0123456789abcdefghijklmnopqrstuvwxyz';
\r
16 switch( YOURLS_URL_CONVERT ) {
\r
18 $charset = '0123456789abcdefghijklmnopqrstuvwxyz';
\r
21 case 64: // just because some people get this wrong in their config.php
\r
22 $charset = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
\r
27 $charset = yourls_apply_filter( 'get_shorturl_charset', $charset );
\r
31 // function to convert an integer (1337) to a string (3jk).
\r
32 function yourls_int2string( $num, $chars = null ) {
\r
33 if( $chars == null )
\r
34 $chars = yourls_get_shorturl_charset();
\r
36 $len = strlen( $chars );
\r
37 while( $num >= $len ) {
\r
38 $mod = bcmod( $num, $len );
\r
39 $num = bcdiv( $num, $len );
\r
40 $string = $chars[$mod] . $string;
\r
42 $string = $chars[$num] . $string;
\r
44 return yourls_apply_filter( 'int2string', $string, $num, $chars );
\r
47 // function to convert a string (3jk) to an integer (1337)
\r
48 function yourls_string2int( $string, $chars = null ) {
\r
49 if( $chars == null )
\r
50 $chars = yourls_get_shorturl_charset();
\r
52 $string = strrev( $string );
\r
53 $baselen = strlen( $chars );
\r
54 $inputlen = strlen( $string );
\r
55 for ($i = 0; $i < $inputlen; $i++) {
\r
56 $index = strpos( $chars, $string[$i] );
\r
57 $integer = bcadd( $integer, bcmul( $index, bcpow( $baselen, $i ) ) );
\r
60 return yourls_apply_filter( 'string2int', $integer, $string, $chars );
\r
63 // return a unique(ish) hash for a string to be used as a valid HTML id
\r
64 function yourls_string2htmlid( $string ) {
\r
65 return yourls_apply_filter( 'string2htmlid', 'y'.abs( crc32( $string ) ) );
\r
68 // Make sure a link keyword (ie "1fv" as in "site.com/1fv") is valid.
\r
69 function yourls_sanitize_string( $string ) {
\r
70 // make a regexp pattern with the shorturl charset, and remove everything but this
\r
71 $pattern = yourls_make_regexp_pattern( yourls_get_shorturl_charset() );
\r
72 $valid = substr(preg_replace('![^'.$pattern.']!', '', $string ), 0, 199);
\r
74 return yourls_apply_filter( 'sanitize_string', $valid, $string );
\r
77 // Make an optimized regexp pattern from a string of characters
\r
78 function yourls_make_regexp_pattern( $string ) {
\r
79 $pattern = preg_quote( $string, '-' ); // add - as an escaped characters -- this is fixed in PHP 5.3
\r
80 // TODO: replace char sequences by smart sequences such as 0-9, a-z, A-Z ... ?
\r
84 // Alias function. I was always getting it wrong.
\r
85 function yourls_sanitize_keyword( $keyword ) {
\r
86 return yourls_sanitize_string( $keyword );
\r
89 // Sanitize a page title. No HTML per W3C http://www.w3.org/TR/html401/struct/global.html#h-7.4.2
\r
90 function yourls_sanitize_title( $title ) {
\r
91 // TODO: make stronger Implement KSES?
\r
92 $title = strip_tags( $title );
\r
93 // Remove extra white space
\r
94 $title = preg_replace( "/\s+/", ' ', trim( $title ) );
\r
98 // Is an URL a short URL?
\r
99 function yourls_is_shorturl( $shorturl ) {
\r
100 // TODO: make sure this function evolves with the feature set.
\r
103 $keyword = preg_replace( '!^'.YOURLS_SITE.'/!', '', $shorturl ); // accept either 'http://ozh.in/abc' or 'abc'
\r
104 if( $keyword && $keyword == yourls_sanitize_string( $keyword ) && yourls_keyword_is_taken( $keyword ) ) {
\r
108 return yourls_apply_filter( 'is_shorturl', $is_short, $shorturl );
\r
111 // A few sanity checks on the URL
\r
112 function yourls_sanitize_url($url) {
\r
113 // make sure there's only one 'http://' at the beginning (prevents pasting a URL right after the default 'http://')
\r
114 $url = str_replace('http://http://', 'http://', $url);
\r
116 // make sure there's a protocol, add http:// if not
\r
117 if ( !preg_match('!^([a-zA-Z]+://)!', $url ) )
\r
118 $url = 'http://'.$url;
\r
120 $url = yourls_clean_url($url);
\r
122 return substr( $url, 0, 1999 );
\r
125 // Function to filter all invalid characters from a URL. Stolen from WP's clean_url()
\r
126 function yourls_clean_url( $url ) {
\r
127 $url = preg_replace('|[^a-z0-9-~+_.?\[\]\^#=!&;,/:%@$\|*\'"()\\x80-\\xff]|i', '', $url );
\r
128 $strip = array('%0d', '%0a', '%0D', '%0A');
\r
129 $url = yourls_deep_replace($strip, $url);
\r
130 $url = str_replace(';//', '://', $url);
\r
131 $url = str_replace('&', '&', $url); // Revert & not to break query strings
\r
136 // Perform a replacement while a string is found, eg $subject = '%0%0%0DDD', $search ='%0D' -> $result =''
\r
137 // Stolen from WP's _deep_replace
\r
138 function yourls_deep_replace($search, $subject){
\r
142 foreach( (array) $search as $val ) {
\r
143 while(strpos($subject, $val) !== false) {
\r
145 $subject = str_replace($val, '', $subject);
\r
153 // Make sure an integer is a valid integer (PHP's intval() limits to too small numbers)
\r
154 // TODO FIXME FFS: unused ?
\r
155 function yourls_sanitize_int($in) {
\r
156 return ( substr(preg_replace('/[^0-9]/', '', strval($in) ), 0, 20) );
\r
159 // Make sure a integer is safe
\r
160 // Note: this is not checking for integers, since integers on 32bits system are way too limited
\r
161 // TODO: find a way to validate as integer
\r
162 function yourls_intval($in) {
\r
163 return yourls_escape($in);
\r
167 function yourls_escape( $in ) {
\r
168 return mysql_real_escape_string($in);
\r
171 // Check to see if a given keyword is reserved (ie reserved URL or an existing page)
\r
173 function yourls_keyword_is_reserved( $keyword ) {
\r
174 global $yourls_reserved_URL;
\r
175 $keyword = yourls_sanitize_keyword( $keyword );
\r
178 if ( in_array( $keyword, $yourls_reserved_URL)
\r
179 or file_exists( YOURLS_ABSPATH ."/pages/$keyword.php" )
\r
180 or is_dir( YOURLS_ABSPATH ."/$keyword" )
\r
184 return yourls_apply_filter( 'keyword_is_reserved', $reserved, $keyword );
\r
187 // Function: Get IP Address. Returns a DB safe string.
\r
188 function yourls_get_IP() {
\r
189 if( !empty( $_SERVER['REMOTE_ADDR'] ) ) {
\r
190 $ip = $_SERVER['REMOTE_ADDR'];
\r
192 if(!empty($_SERVER['HTTP_CLIENT_IP'])) {
\r
193 $ip = $_SERVER['HTTP_CLIENT_IP'];
\r
194 } else if(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
\r
195 $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
\r
196 } else if(!empty($_SERVER['HTTP_VIA '])) {
\r
197 $ip = $_SERVER['HTTP_VIA '];
\r
201 return yourls_apply_filter( 'get_IP', yourls_sanitize_ip( $ip ) );
\r
204 // Sanitize an IP address
\r
205 function yourls_sanitize_ip( $ip ) {
\r
206 return preg_replace( '/[^0-9a-fA-F:., ]/', '', $ip );
\r
209 // Make sure a date is m(m)/d(d)/yyyy, return false otherwise
\r
210 function yourls_sanitize_date( $date ) {
\r
211 if( !preg_match( '!^\d{1,2}/\d{1,2}/\d{4}$!' , $date ) ) {
\r
217 // Sanitize a date for SQL search. Return false if malformed input.
\r
218 function yourls_sanitize_date_for_sql( $date ) {
\r
219 if( !yourls_sanitize_date( $date ) )
\r
221 return date('Y-m-d', strtotime( $date ) );
\r
224 // Add the "Edit" row
\r
225 function yourls_table_edit_row( $keyword ) {
\r
228 $table = YOURLS_DB_TABLE_URL;
\r
229 $keyword = yourls_sanitize_string( $keyword );
\r
230 $id = yourls_string2htmlid( $keyword ); // used as HTML #id
\r
231 $url = yourls_get_keyword_longurl( $keyword );
\r
232 $title = htmlspecialchars( yourls_get_keyword_title( $keyword ) );
\r
233 $safe_url = stripslashes( $url );
\r
234 $safe_title = stripslashes( $title );
\r
235 $www = YOURLS_SITE;
\r
237 $save_link = yourls_nonce_url( 'save-link_'.$id,
\r
238 yourls_add_query_arg( array( 'id' => $id, 'action' => 'edit_save', 'keyword' => $keyword ), yourls_admin_url( 'admin-ajax.php' ) )
\r
241 $nonce = yourls_create_nonce( 'edit-save_'.$id );
\r
244 $return = <<<RETURN
\r
245 <tr id="edit-$id" class="edit-row"><td colspan="5"><strong>Original URL</strong>:<input type="text" id="edit-url-$id" name="edit-url-$id" value="$safe_url" class="text" size="70" /> <strong>Short URL</strong>: $www/<input type="text" id="edit-keyword-$id" name="edit-keyword-$id" value="$keyword" class="text" size="10" /><br/><strong>Title</strong>: <input type="text" id="edit-title-$id" name="edit-title-$id" value="$title" class="text" size="60" /></td><td colspan="1"><input type="button" id="edit-submit-$id" name="edit-submit-$id" value="Save" title="Save new values" class="button" onclick="edit_save('$id');" /> <input type="button" id="edit-close-$id" name="edit-close-$id" value="X" title="Cancel editing" class="button" onclick="hide_edit('$id');" /><input type="hidden" id="old_keyword_$id" value="$keyword"/><input type="hidden" id="nonce_$id" value="$nonce"/></td></tr>
\r
248 $return = '<tr><td colspan="6">Error, URL not found</td></tr>';
\r
251 $return = yourls_apply_filter( 'table_edit_row', $return, $keyword, $url, $title );
\r
257 function yourls_table_add_row( $keyword, $url, $title = '', $ip, $clicks, $timestamp ) {
\r
258 $keyword = yourls_sanitize_string( $keyword );
\r
259 $display_keyword = htmlentities( $keyword );
\r
261 $url = yourls_sanitize_url( $url );
\r
262 $display_url = htmlentities( yourls_trim_long_string( $url ) );
\r
263 $title_url = htmlspecialchars( $url );
\r
265 $title = yourls_sanitize_title( $title ) ;
\r
266 $display_title = yourls_trim_long_string( $title );
\r
267 $title = htmlspecialchars( $title );
\r
269 $id = yourls_string2htmlid( $keyword ); // used as HTML #id
\r
270 $date = date( 'M d, Y H:i', $timestamp+( YOURLS_HOURS_OFFSET * 3600) );
\r
271 $clicks = number_format($clicks, 0, '', '');
\r
273 $shorturl = YOURLS_SITE.'/'.$keyword;
\r
274 $statlink = $shorturl.'+';
\r
275 if( yourls_is_ssl() )
\r
276 $statlink = str_replace( 'http://', 'https://', $statlink );
\r
279 $display_link = "<a href=\"$url\" title=\"$title\">$display_title</a><br/><small><a href=\"$url\" title=\"$title_url\">$display_url</a></small>";
\r
281 $display_link = "<a href=\"$url\" title=\"$title_url\">$display_url</a>";
\r
284 $delete_link = yourls_nonce_url( 'delete-link_'.$id,
\r
285 yourls_add_query_arg( array( 'id' => $id, 'action' => 'delete', 'keyword' => $keyword ), yourls_admin_url( 'admin-ajax.php' ) )
\r
288 $edit_link = yourls_nonce_url( 'edit-link_'.$id,
\r
289 yourls_add_query_arg( array( 'id' => $id, 'action' => 'edit', 'keyword' => $keyword ), yourls_admin_url( 'admin-ajax.php' ) )
\r
294 $actions = <<<ACTION
\r
295 <a href="$statlink" id="statlink-$id" title="Stats" class="button button_stats">Stats</a><a href="" id="share-button-$id" name="share-button" title="Share" class="button button_share" onclick="toggle_share('$id');return false;">Share</a><a href="$edit_link" id="edit-button-$id" name="edit-button" title="Edit" class="button button_edit" onclick="edit('$id');return false;">Edit</a><a href="$delete_link" id="delete-button-$id" name="delete-button" title="Delete" class="button button_delete" onclick="remove('$id');return false;">Delete</a>
\r
297 $actions = yourls_apply_filter( 'action_links', $actions, $keyword, $url, $ip, $clicks, $timestamp );
\r
300 <tr id="id-$id"><td id="keyword-$id" class="keyword"><a href="$shorturl">$display_keyword</a></td><td id="url-$id" class="url">$display_link</td><td id="timestamp-$id" class="timestamp">$date</td><td id="ip-$id" class="ip">$ip</td><td id="clicks-$id" class="clicks">$clicks</td><td class="actions" id="actions-$id">$actions<input type="hidden" id="keyword_$id" value="$keyword"/></td></tr>
\r
302 $row = yourls_apply_filter( 'table_add_row', $row, $keyword, $url, $title, $ip, $clicks, $timestamp );
\r
307 // Get next id a new link will have if no custom keyword provided
\r
308 function yourls_get_next_decimal() {
\r
309 return yourls_apply_filter( 'get_next_decimal', (int)yourls_get_option( 'next_id' ) );
\r
312 // Update id for next link with no custom keyword
\r
313 function yourls_update_next_decimal( $int = '' ) {
\r
314 $int = ( $int == '' ) ? yourls_get_next_decimal() + 1 : (int)$int ;
\r
315 $update = yourls_update_option( 'next_id', $int );
\r
316 yourls_do_action( 'update_next_decimal', $int, $update );
\r
320 // Delete a link in the DB
\r
321 function yourls_delete_link_by_keyword( $keyword ) {
\r
324 $table = YOURLS_DB_TABLE_URL;
\r
325 $keyword = yourls_sanitize_string( $keyword );
\r
326 $delete = $ydb->query("DELETE FROM `$table` WHERE `keyword` = '$keyword';");
\r
327 yourls_do_action( 'delete_link', $keyword, $delete );
\r
331 // SQL query to insert a new link in the DB. Returns boolean for success or failure of the inserting
\r
332 function yourls_insert_link_in_db( $url, $keyword, $title = '' ) {
\r
335 $url = addslashes( yourls_sanitize_url( $url ) );
\r
336 $keyword = addslashes( yourls_sanitize_keyword( $keyword ) );
\r
337 $title = addslashes( yourls_sanitize_title( $title ) );
\r
339 $table = YOURLS_DB_TABLE_URL;
\r
340 $timestamp = date('Y-m-d H:i:s');
\r
341 $ip = yourls_get_IP();
\r
342 $insert = $ydb->query("INSERT INTO `$table` VALUES('$keyword', '$url', '$title', '$timestamp', '$ip', 0);");
\r
344 yourls_do_action( 'insert_link', (bool)$insert, $url, $keyword, $title, $timestamp, $ip );
\r
346 return (bool)$insert;
\r
349 // Add a new link in the DB, either with custom keyword, or find one
\r
350 function yourls_add_new_link( $url, $keyword = '', $title = '' ) {
\r
353 // Allow plugins to short-circuit the whole function
\r
354 $pre = yourls_apply_filter( 'shunt_add_new_link', false, $url, $keyword, $title );
\r
355 if ( false !== $pre )
\r
358 if ( !$url || $url == 'http://' || $url == 'https://' ) {
\r
359 $return['status'] = 'fail';
\r
360 $return['code'] = 'error:nourl';
\r
361 $return['message'] = 'Missing URL input';
\r
362 $return['errorCode'] = '400';
\r
363 return yourls_apply_filter( 'add_new_link_fail_nourl', $return, $url, $keyword, $title );
\r
366 // Prevent DB flood
\r
367 $ip = yourls_get_IP();
\r
368 yourls_check_IP_flood( $ip );
\r
370 // Prevent internal redirection loops: cannot shorten a shortened URL
\r
371 $url = yourls_escape( yourls_sanitize_url($url) );
\r
372 if( preg_match( '!^'.YOURLS_SITE.'/!', $url ) ) {
\r
373 if( yourls_is_shorturl( $url ) ) {
\r
374 $return['status'] = 'fail';
\r
375 $return['code'] = 'error:noloop';
\r
376 $return['message'] = 'URL is a short URL';
\r
377 $return['errorCode'] = '400';
\r
378 return yourls_apply_filter( 'add_new_link_fail_noloop', $return, $url, $keyword, $title );
\r
382 yourls_do_action( 'pre_add_new_link', $url, $keyword, $title );
\r
384 $table = YOURLS_DB_TABLE_URL;
\r
385 $strip_url = stripslashes($url);
\r
386 $url_exists = $ydb->get_row("SELECT * FROM `$table` WHERE `url` = '".$strip_url."';");
\r
389 // New URL : store it -- or: URL exists, but duplicates allowed
\r
390 if( !$url_exists || yourls_allow_duplicate_longurls() ) {
\r
392 if( isset( $title ) && !empty( $title ) ) {
\r
393 $title = yourls_sanitize_title( $title );
\r
395 $title = yourls_get_remote_title( $url );
\r
397 $title = yourls_apply_filter( 'add_new_title', $title, $url, $keyword );
\r
399 // Custom keyword provided
\r
402 yourls_do_action( 'add_new_link_custom_keyword', $url, $keyword, $title );
\r
404 $keyword = yourls_escape( yourls_sanitize_string($keyword) );
\r
405 $keyword = yourls_apply_filter( 'custom_keyword', $keyword, $url, $title );
\r
406 if ( !yourls_keyword_is_free($keyword) ) {
\r
407 // This shorturl either reserved or taken already
\r
408 $return['status'] = 'fail';
\r
409 $return['code'] = 'error:keyword';
\r
410 $return['message'] = 'Short URL '.$keyword.' already exists in database or is reserved';
\r
412 // all clear, store !
\r
413 yourls_insert_link_in_db( $url, $keyword, $title );
\r
414 $return['url'] = array('keyword' => $keyword, 'url' => $strip_url, 'title' => $title, 'date' => date('Y-m-d H:i:s'), 'ip' => $ip );
\r
415 $return['status'] = 'success';
\r
416 $return['message'] = yourls_trim_long_string( $strip_url ).' added to database';
\r
417 $return['title'] = $title;
\r
418 $return['html'] = yourls_table_add_row( $keyword, $url, $title, $ip, 0, time() );
\r
419 $return['shorturl'] = YOURLS_SITE .'/'. $keyword;
\r
422 // Create random keyword
\r
425 yourls_do_action( 'add_new_link_create_keyword', $url, $keyword, $title );
\r
427 $timestamp = date('Y-m-d H:i:s');
\r
428 $id = yourls_get_next_decimal();
\r
431 $keyword = yourls_int2string( $id );
\r
432 $keyword = yourls_apply_filter( 'random_keyword', $keyword, $url, $title );
\r
433 $free = yourls_keyword_is_free($keyword);
\r
434 $add_url = @yourls_insert_link_in_db( $url, $keyword, $title );
\r
435 $ok = ($free && $add_url);
\r
436 if ( $ok === false && $add_url === 1 ) {
\r
437 // we stored something, but shouldn't have (ie reserved id)
\r
438 $delete = yourls_delete_link_by_keyword( $keyword );
\r
439 $return['extra_info'] .= '(deleted '.$keyword.')';
\r
441 // everything ok, populate needed vars
\r
442 $return['url'] = array('keyword' => $keyword, 'url' => $strip_url, 'title' => $title, 'date' => $timestamp, 'ip' => $ip );
\r
443 $return['status'] = 'success';
\r
444 $return['message'] = yourls_trim_long_string( $strip_url ).' added to database';
\r
445 $return['title'] = $title;
\r
446 $return['html'] = yourls_table_add_row( $keyword, $url, $title, $ip, 0, time() );
\r
447 $return['shorturl'] = YOURLS_SITE .'/'. $keyword;
\r
451 @yourls_update_next_decimal($id);
\r
454 // URL was already stored
\r
457 yourls_do_action( 'add_new_link_already_stored', $url, $keyword, $title );
\r
459 $return['status'] = 'fail';
\r
460 $return['code'] = 'error:url';
\r
461 $return['url'] = array( 'keyword' => $keyword, 'url' => $strip_url, 'title' => $url_exists->title, 'date' => $url_exists->timestamp, 'ip' => $url_exists->ip, 'clicks' => $url_exists->clicks );
\r
462 $return['message'] = yourls_trim_long_string( $strip_url ).' already exists in database';
\r
463 $return['title'] = $url_exists->title;
\r
464 $return['shorturl'] = YOURLS_SITE .'/'. $url_exists->keyword;
\r
467 yourls_do_action( 'post_add_new_link', $url, $keyword, $title );
\r
469 $return['statusCode'] = 200; // regardless of result, this is still a valid request
\r
470 return yourls_apply_filter( 'add_new_link', $return, $url, $keyword, $title );
\r
475 function yourls_edit_link( $url, $keyword, $newkeyword='', $title='' ) {
\r
478 $table = YOURLS_DB_TABLE_URL;
\r
479 $url = yourls_escape(yourls_sanitize_url($url));
\r
480 $keyword = yourls_escape(yourls_sanitize_string( $keyword ));
\r
481 $title = yourls_escape(yourls_sanitize_title( $title ));
\r
482 $newkeyword = yourls_escape(yourls_sanitize_string( $newkeyword ));
\r
483 $strip_url = stripslashes($url);
\r
484 $strip_title = stripslashes($title);
\r
485 $old_url = $ydb->get_var("SELECT `url` FROM `$table` WHERE `keyword` = '$keyword';");
\r
487 // Check if new URL is not here already
\r
488 if ( $old_url != $url && !yourls_allow_duplicate_longurls() ) {
\r
489 $new_url_already_there = intval($ydb->get_var("SELECT COUNT(keyword) FROM `$table` WHERE `url` = '$strip_url';"));
\r
491 $new_url_already_there = false;
\r
494 // Check if the new keyword is not here already
\r
495 if ( $newkeyword != $keyword ) {
\r
496 $keyword_is_ok = yourls_keyword_is_free( $newkeyword );
\r
498 $keyword_is_ok = true;
\r
501 yourls_do_action( 'pre_edit_link', $url, $keyword, $newkeyword, $new_url_already_there, $keyword_is_ok );
\r
503 // All clear, update
\r
504 if ( ( !$new_url_already_there || yourls_allow_duplicate_longurls() ) && $keyword_is_ok ) {
\r
505 $update_url = $ydb->query("UPDATE `$table` SET `url` = '$url', `keyword` = '$newkeyword', `title` = '$title' WHERE `keyword` = '$keyword';");
\r
506 if( $update_url ) {
\r
507 $return['url'] = array( 'keyword' => $newkeyword, 'shorturl' => YOURLS_SITE.'/'.$newkeyword, 'url' => $strip_url, 'display_url' => yourls_trim_long_string( $strip_url ), 'title' => $strip_title, 'display_title' => yourls_trim_long_string( $strip_title ) );
\r
508 $return['status'] = 'success';
\r
509 $return['message'] = 'Link updated in database';
\r
511 $return['status'] = 'fail';
\r
512 $return['message'] = 'Error updating '. yourls_trim_long_string( $strip_url ).' (Short URL: '.$keyword.') to database';
\r
517 $return['status'] = 'fail';
\r
518 $return['message'] = 'URL or keyword already exists in database';
\r
521 return yourls_apply_filter( 'edit_link', $return, $url, $keyword, $newkeyword, $title, $new_url_already_there, $keyword_is_ok );
\r
524 // Update a title link (no checks for duplicates etc..)
\r
525 function yourls_edit_link_title( $keyword, $title ) {
\r
528 $keyword = yourls_escape( yourls_sanitize_keyword( $keyword ) );
\r
529 $title = yourls_escape( yourls_sanitize_title( $title ) );
\r
531 $table = YOURLS_DB_TABLE_URL;
\r
532 $update = $ydb->query("UPDATE `$table` SET `title` = '$title' WHERE `keyword` = '$keyword';");
\r
538 // Check if keyword id is free (ie not already taken, and not reserved). Return bool.
\r
539 function yourls_keyword_is_free( $keyword ) {
\r
541 if ( yourls_keyword_is_reserved( $keyword ) or yourls_keyword_is_taken( $keyword ) )
\r
544 return yourls_apply_filter( 'keyword_is_free', $free, $keyword );
\r
547 // Check if a keyword is taken (ie there is already a short URL with this id). Return bool.
\r
548 function yourls_keyword_is_taken( $keyword ) {
\r
550 $keyword = yourls_sanitize_keyword( $keyword );
\r
552 $table = YOURLS_DB_TABLE_URL;
\r
553 $already_exists = $ydb->get_var("SELECT COUNT(`keyword`) FROM `$table` WHERE `keyword` = '$keyword';");
\r
554 if ( $already_exists )
\r
557 return yourls_apply_filter( 'keyword_is_taken', $taken, $keyword );
\r
562 function yourls_page( $page ) {
\r
563 $include = YOURLS_ABSPATH . "/pages/$page.php";
\r
564 if (!file_exists($include)) {
\r
565 yourls_die("Page '$page' not found", 'Not found', 404);
\r
567 yourls_do_action( 'pre_page', $page );
\r
569 yourls_do_action( 'post_page', $page );
\r
574 function yourls_db_connect() {
\r
577 if (!defined('YOURLS_DB_USER')
\r
578 or !defined('YOURLS_DB_PASS')
\r
579 or !defined('YOURLS_DB_NAME')
\r
580 or !defined('YOURLS_DB_HOST')
\r
581 or !class_exists('ezSQL_mysql')
\r
582 ) yourls_die ('DB config missing, or could not find DB class', 'Fatal error', 503);
\r
584 // Are we standalone or in the WordPress environment?
\r
585 if ( class_exists('wpdb') ) {
\r
586 $ydb = new wpdb(YOURLS_DB_USER, YOURLS_DB_PASS, YOURLS_DB_NAME, YOURLS_DB_HOST);
\r
588 $ydb = new ezSQL_mysql(YOURLS_DB_USER, YOURLS_DB_PASS, YOURLS_DB_NAME, YOURLS_DB_HOST);
\r
590 if ( $ydb->last_error )
\r
591 yourls_die( $ydb->last_error, 'Fatal error', 503 );
\r
593 if ( defined('YOURLS_DEBUG') && YOURLS_DEBUG === true )
\r
594 $ydb->show_errors = true;
\r
599 // Return XML output.
\r
600 function yourls_xml_encode($array) {
\r
601 require_once(YOURLS_INC.'/functions-xml.php');
\r
602 $converter= new yourls_array2xml;
\r
603 return $converter->array2xml($array);
\r
606 // Return array of all informations associated with keyword. Returns false if keyword not found. Set optional $use_cache to false to force fetching from DB
\r
607 function yourls_get_keyword_infos( $keyword, $use_cache = true ) {
\r
609 $keyword = yourls_sanitize_string( $keyword );
\r
611 yourls_do_action( 'pre_get_keyword', $keyword, $use_cache );
\r
613 if( isset( $ydb->infos[$keyword] ) && $use_cache == true ) {
\r
614 return yourls_apply_filter( 'get_keyword_infos', $ydb->infos[$keyword], $keyword );
\r
617 yourls_do_action( 'get_keyword_not_cached', $keyword );
\r
619 $table = YOURLS_DB_TABLE_URL;
\r
620 $infos = $ydb->get_row("SELECT * FROM `$table` WHERE `keyword` = '$keyword'");
\r
623 $infos = (array)$infos;
\r
624 $ydb->infos[$keyword] = $infos;
\r
626 $ydb->infos[$keyword] = false;
\r
629 return yourls_apply_filter( 'get_keyword_infos', $ydb->infos[$keyword], $keyword );
\r
632 // Return (string) selected information associated with a keyword. Optional $notfound = string default message if nothing found
\r
633 function yourls_get_keyword_info( $keyword, $field, $notfound = false ) {
\r
635 // Allow plugins to short-circuit the whole function
\r
636 $pre = yourls_apply_filter( 'shunt_get_keyword_info', false, $keyword, $field, $notfound );
\r
637 if ( false !== $pre )
\r
640 $keyword = yourls_sanitize_string( $keyword );
\r
641 $infos = yourls_get_keyword_infos( $keyword );
\r
643 $return = $notfound;
\r
644 if ( isset($infos[$field]) && $infos[$field] !== false )
\r
645 $return = $infos[$field];
\r
647 return yourls_apply_filter( 'get_keyword_info', $return, $keyword, $field, $notfound );
\r
650 // Return title associated with keyword. Optional $notfound = string default message if nothing found
\r
651 function yourls_get_keyword_title( $keyword, $notfound = false ) {
\r
652 return yourls_get_keyword_info( $keyword, 'title', $notfound );
\r
655 // Return long URL associated with keyword. Optional $notfound = string default message if nothing found
\r
656 function yourls_get_keyword_longurl( $keyword, $notfound = false ) {
\r
657 return yourls_get_keyword_info( $keyword, 'url', $notfound );
\r
660 // Return number of clicks on a keyword. Optional $notfound = string default message if nothing found
\r
661 function yourls_get_keyword_clicks( $keyword, $notfound = false ) {
\r
662 return yourls_get_keyword_info( $keyword, 'clicks', $notfound );
\r
665 // Return IP that added a keyword. Optional $notfound = string default message if nothing found
\r
666 function yourls_get_keyword_IP( $keyword, $notfound = false ) {
\r
667 return yourls_get_keyword_info( $keyword, 'ip', $notfound );
\r
670 // Return timestamp associated with a keyword. Optional $notfound = string default message if nothing found
\r
671 function yourls_get_keyword_timestamp( $keyword, $notfound = false ) {
\r
672 return yourls_get_keyword_info( $keyword, 'timestamp', $notfound );
\r
675 // Update click count on a short URL. Return 0/1 for error/success.
\r
676 function yourls_update_clicks( $keyword ) {
\r
677 // Allow plugins to short-circuit the whole function
\r
678 $pre = yourls_apply_filter( 'shunt_update_clicks', false, $keyword );
\r
679 if ( false !== $pre )
\r
683 $keyword = yourls_sanitize_string( $keyword );
\r
684 $table = YOURLS_DB_TABLE_URL;
\r
685 $update = $ydb->query("UPDATE `$table` SET `clicks` = clicks + 1 WHERE `keyword` = '$keyword'");
\r
686 yourls_do_action( 'update_clicks', $keyword, $update );
\r
690 // Return array of stats. (string)$filter is 'bottom', 'last', 'rand' or 'top'. (int)$limit is the number of links to return
\r
691 function yourls_get_stats( $filter = 'top', $limit = 10, $start = 0 ) {
\r
694 switch( $filter ) {
\r
696 $sort_by = 'clicks';
\r
697 $sort_order = 'asc';
\r
700 $sort_by = 'timestamp';
\r
701 $sort_order = 'desc';
\r
705 $sort_by = 'RAND()';
\r
710 $sort_by = 'clicks';
\r
711 $sort_order = 'desc';
\r
716 $limit = intval( $limit );
\r
717 $start = intval( $start );
\r
718 if ( $limit > 0 ) {
\r
720 $table_url = YOURLS_DB_TABLE_URL;
\r
721 $results = $ydb->get_results("SELECT * FROM `$table_url` WHERE 1=1 ORDER BY `$sort_by` $sort_order LIMIT $start, $limit;");
\r
726 foreach ( (array)$results as $res) {
\r
727 $return['links']['link_'.$i++] = array(
\r
728 'shorturl' => YOURLS_SITE .'/'. $res->keyword,
\r
729 'url' => $res->url,
\r
730 'title' => $res->title,
\r
731 'timestamp'=> $res->timestamp,
\r
733 'clicks' => $res->clicks,
\r
738 $return['stats'] = yourls_get_db_stats();
\r
740 $return['statusCode'] = 200;
\r
742 return yourls_apply_filter( 'get_stats', $return, $filter, $limit, $start );
\r
745 // Return array of stats. (string)$filter is 'bottom', 'last', 'rand' or 'top'. (int)$limit is the number of links to return
\r
746 function yourls_get_link_stats( $shorturl ) {
\r
749 $table_url = YOURLS_DB_TABLE_URL;
\r
750 $res = $ydb->get_row("SELECT * FROM `$table_url` WHERE keyword = '$shorturl';");
\r
754 // non existent link
\r
756 'statusCode' => 404,
\r
757 'message' => 'Error: short URL not found',
\r
761 'statusCode' => 200,
\r
762 'message' => 'success',
\r
764 'shorturl' => YOURLS_SITE .'/'. $res->keyword,
\r
765 'url' => $res->url,
\r
766 'title' => $res->title,
\r
767 'timestamp'=> $res->timestamp,
\r
769 'clicks' => $res->clicks,
\r
774 return yourls_apply_filter( 'get_link_stats', $return, $shorturl );
\r
777 // Return array for API stat requests
\r
778 function yourls_api_stats( $filter = 'top', $limit = 10, $start = 0 ) {
\r
779 $return = yourls_get_stats( $filter, $limit, $start );
\r
780 $return['simple'] = 'Need either XML or JSON format for stats';
\r
781 $return['message'] = 'success';
\r
782 return yourls_apply_filter( 'api_stats', $return, $filter, $limit, $start );
\r
785 // Return array for counts of shorturls and clicks
\r
786 function yourls_api_db_stats() {
\r
787 $return = yourls_get_db_stats();
\r
788 $return['simple'] = 'Need either XML or JSON format for stats';
\r
789 $return['message'] = 'success';
\r
790 return yourls_apply_filter( 'api_db_stats', $return );
\r
793 // Return array for API stat requests
\r
794 function yourls_api_url_stats($shorturl) {
\r
795 $keyword = str_replace( YOURLS_SITE . '/' , '', $shorturl ); // accept either 'http://ozh.in/abc' or 'abc'
\r
796 $keyword = yourls_sanitize_string( $keyword );
\r
798 $return = yourls_get_link_stats( $keyword );
\r
799 $return['simple'] = 'Need either XML or JSON format for stats';
\r
800 return yourls_apply_filter( 'api_url_stats', $return, $shorturl );
\r
803 // Expand short url to long url
\r
804 function yourls_api_expand( $shorturl ) {
\r
805 $keyword = str_replace( YOURLS_SITE . '/' , '', $shorturl ); // accept either 'http://ozh.in/abc' or 'abc'
\r
806 $keyword = yourls_sanitize_string( $keyword );
\r
808 $longurl = yourls_get_keyword_longurl( $keyword );
\r
812 'keyword' => $keyword,
\r
813 'shorturl' => YOURLS_SITE . "/$keyword",
\r
814 'longurl' => $longurl,
\r
815 'simple' => $longurl,
\r
816 'message' => 'success',
\r
817 'statusCode' => 200,
\r
821 'keyword' => $keyword,
\r
822 'simple' => 'not found',
\r
823 'message' => 'Error: short URL not found',
\r
824 'errorCode' => 404,
\r
828 return yourls_apply_filter( 'api_expand', $return, $shorturl );
\r
832 // Get total number of URLs and sum of clicks. Input: optional "AND WHERE" clause. Returns array
\r
833 function yourls_get_db_stats( $where = '' ) {
\r
835 $table_url = YOURLS_DB_TABLE_URL;
\r
837 $totals = $ydb->get_row("SELECT COUNT(keyword) as count, SUM(clicks) as sum FROM `$table_url` WHERE 1=1 $where");
\r
838 $return = array( 'total_links' => $totals->count, 'total_clicks' => $totals->sum );
\r
840 return yourls_apply_filter( 'get_db_stats', $return, $where );
\r
843 // Return API result. Dies after this
\r
844 function yourls_api_output( $mode, $return ) {
\r
845 if( isset( $return['simple'] ) ) {
\r
846 $simple = $return['simple'];
\r
847 unset( $return['simple'] );
\r
850 yourls_do_action( 'pre_api_output', $mode, $return );
\r
854 header('Content-type: application/json');
\r
855 echo json_encode($return);
\r
859 header('Content-type: application/xml');
\r
860 echo yourls_xml_encode($return);
\r
865 if( isset( $simple ) )
\r
870 yourls_do_action( 'api_output', $mode, $return );
\r
875 // Get number of SQL queries performed
\r
876 function yourls_get_num_queries() {
\r
879 return yourls_apply_filter( 'get_num_queries', $ydb->num_queries );
\r
882 // Returns a sanitized a user agent string. Given what I found on http://www.user-agents.org/ it should be OK.
\r
883 function yourls_get_user_agent() {
\r
884 if ( !isset( $_SERVER['HTTP_USER_AGENT'] ) )
\r
887 $ua = strip_tags( html_entity_decode( $_SERVER['HTTP_USER_AGENT'] ));
\r
888 $ua = preg_replace('![^0-9a-zA-Z\':., /{}\(\)\[\]\+@&\!\?;_\-=~\*\#]!', '', $ua );
\r
890 return yourls_apply_filter( 'get_user_agent', substr( $ua, 0, 254 ) );
\r
893 // Redirect to another page
\r
894 function yourls_redirect( $location, $code = 301 ) {
\r
895 yourls_do_action( 'pre_redirect', $location, $code );
\r
896 // Redirect, either properly if possible, or via Javascript otherwise
\r
897 if( !headers_sent() ) {
\r
898 yourls_status_header( $code );
\r
899 header("Location: $location");
\r
901 yourls_redirect_javascript( $location );
\r
906 // Set HTTP status header
\r
907 function yourls_status_header( $code = 200 ) {
\r
908 if( headers_sent() )
\r
911 $protocol = $_SERVER["SERVER_PROTOCOL"];
\r
912 if ( 'HTTP/1.1' != $protocol && 'HTTP/1.0' != $protocol )
\r
913 $protocol = 'HTTP/1.0';
\r
915 $code = intval( $code );
\r
916 $desc = yourls_get_HTTP_status($code);
\r
918 @header ("$protocol $code $desc"); // This causes problems on IIS and some FastCGI setups
\r
919 yourls_do_action( 'status_header', $code );
\r
922 // Redirect to another page using Javascript. Set optional (bool)$dontwait to false to force manual redirection (make sure a message has been read by user)
\r
923 function yourls_redirect_javascript( $location, $dontwait = true ) {
\r
926 <script type="text/javascript">
\r
927 window.location="$location";
\r
929 <small>(if you are not redirected after 10 seconds, please <a href="$location">click here</a>)</small>
\r
933 <p>Please <a href="$location">click here</a></p>
\r
936 yourls_do_action( 'redirect_javascript', $location );
\r
939 // Return a HTTP status code
\r
940 function yourls_get_HTTP_status( $code ) {
\r
941 $code = intval( $code );
\r
942 $headers_desc = array(
\r
944 101 => 'Switching Protocols',
\r
945 102 => 'Processing',
\r
950 203 => 'Non-Authoritative Information',
\r
951 204 => 'No Content',
\r
952 205 => 'Reset Content',
\r
953 206 => 'Partial Content',
\r
954 207 => 'Multi-Status',
\r
957 300 => 'Multiple Choices',
\r
958 301 => 'Moved Permanently',
\r
960 303 => 'See Other',
\r
961 304 => 'Not Modified',
\r
962 305 => 'Use Proxy',
\r
964 307 => 'Temporary Redirect',
\r
966 400 => 'Bad Request',
\r
967 401 => 'Unauthorized',
\r
968 402 => 'Payment Required',
\r
969 403 => 'Forbidden',
\r
970 404 => 'Not Found',
\r
971 405 => 'Method Not Allowed',
\r
972 406 => 'Not Acceptable',
\r
973 407 => 'Proxy Authentication Required',
\r
974 408 => 'Request Timeout',
\r
977 411 => 'Length Required',
\r
978 412 => 'Precondition Failed',
\r
979 413 => 'Request Entity Too Large',
\r
980 414 => 'Request-URI Too Long',
\r
981 415 => 'Unsupported Media Type',
\r
982 416 => 'Requested Range Not Satisfiable',
\r
983 417 => 'Expectation Failed',
\r
984 422 => 'Unprocessable Entity',
\r
986 424 => 'Failed Dependency',
\r
987 426 => 'Upgrade Required',
\r
989 500 => 'Internal Server Error',
\r
990 501 => 'Not Implemented',
\r
991 502 => 'Bad Gateway',
\r
992 503 => 'Service Unavailable',
\r
993 504 => 'Gateway Timeout',
\r
994 505 => 'HTTP Version Not Supported',
\r
995 506 => 'Variant Also Negotiates',
\r
996 507 => 'Insufficient Storage',
\r
997 510 => 'Not Extended'
\r
1000 if ( isset( $headers_desc[$code] ) )
\r
1001 return $headers_desc[$code];
\r
1007 // Log a redirect (for stats)
\r
1008 function yourls_log_redirect( $keyword ) {
\r
1009 // Allow plugins to short-circuit the whole function
\r
1010 $pre = yourls_apply_filter( 'shunt_log_redirect', false, $keyword );
\r
1011 if ( false !== $pre )
\r
1014 if ( !yourls_do_log_redirect() )
\r
1018 $table = YOURLS_DB_TABLE_LOG;
\r
1020 $keyword = yourls_sanitize_string( $keyword );
\r
1021 $referrer = ( isset( $_SERVER['HTTP_REFERER'] ) ? yourls_sanitize_url( $_SERVER['HTTP_REFERER'] ) : 'direct' );
\r
1022 $ua = yourls_get_user_agent();
\r
1023 $ip = yourls_get_IP();
\r
1024 $location = yourls_geo_ip_to_countrycode( $ip );
\r
1026 return $ydb->query( "INSERT INTO `$table` (click_time, shorturl, referrer, user_agent, ip_address, country_code) VALUES (NOW(), '$keyword', '$referrer', '$ua', '$ip', '$location')" );
\r
1029 // Check if we want to not log redirects (for stats)
\r
1030 function yourls_do_log_redirect() {
\r
1031 return ( !defined('YOURLS_NOSTATS') || YOURLS_NOSTATS != true );
\r
1034 // Converts an IP to a 2 letter country code, using GeoIP database if available in includes/geo/
\r
1035 function yourls_geo_ip_to_countrycode( $ip = '', $default = '' ) {
\r
1036 // Allow plugins to short-circuit the Geo IP API
\r
1037 $location = yourls_apply_filter( 'shunt_geo_ip_to_countrycode', false, $ip, $default ); // at this point $ip can be '', check if your plugin hooks in here
\r
1038 if ( false !== $location )
\r
1041 if ( !file_exists( YOURLS_INC.'/geo/GeoIP.dat') || !file_exists( YOURLS_INC.'/geo/geoip.inc') )
\r
1045 $ip = yourls_get_IP();
\r
1047 require_once( YOURLS_INC.'/geo/geoip.inc') ;
\r
1048 $gi = geoip_open( YOURLS_INC.'/geo/GeoIP.dat', GEOIP_STANDARD);
\r
1049 $location = geoip_country_code_by_addr($gi, $ip);
\r
1052 return yourls_apply_filter( 'geo_ip_to_countrycode', $location, $ip, $default );
\r
1055 // Converts a 2 letter country code to long name (ie AU -> Australia)
\r
1056 function yourls_geo_countrycode_to_countryname( $code ) {
\r
1057 // Allow plugins to short-circuit the Geo IP API
\r
1058 $country = yourls_apply_filter( 'shunt_geo_countrycode_to_countryname', false, $code );
\r
1059 if ( false !== $country )
\r
1062 // Load the Geo class if not already done
\r
1063 if( !class_exists('GeoIP') ) {
\r
1064 $temp = yourls_geo_ip_to_countrycode('127.0.0.1');
\r
1067 if( class_exists('GeoIP') ) {
\r
1069 $id = $geo->GEOIP_COUNTRY_CODE_TO_NUMBER[$code];
\r
1070 $long = $geo->GEOIP_COUNTRY_NAMES[$id];
\r
1077 // Return flag URL from 2 letter country code
\r
1078 function yourls_geo_get_flag( $code ) {
\r
1079 if( file_exists( YOURLS_INC.'/geo/flags/flag_'.strtolower($code).'.gif' ) ) {
\r
1080 $img = yourls_match_current_protocol( YOURLS_SITE.'/includes/geo/flags/flag_'.(strtolower($code)).'.gif' );
\r
1084 return yourls_apply_filter( 'geo_get_flag', $img, $code );
\r
1088 // Check if an upgrade is needed
\r
1089 function yourls_upgrade_is_needed() {
\r
1090 // check YOURLS_DB_VERSION exist && match values stored in YOURLS_DB_TABLE_OPTIONS
\r
1091 list( $currentver, $currentsql ) = yourls_get_current_version_from_sql();
\r
1092 if( $currentsql < YOURLS_DB_VERSION )
\r
1098 // Get current version & db version as stored in the options DB. Prior to 1.4 there's no option table.
\r
1099 function yourls_get_current_version_from_sql() {
\r
1100 $currentver = yourls_get_option( 'version' );
\r
1101 $currentsql = yourls_get_option( 'db_version' );
\r
1103 // Values if version is 1.3
\r
1104 if( !$currentver )
\r
1105 $currentver = '1.3';
\r
1106 if( !$currentsql )
\r
1107 $currentsql = '100';
\r
1109 return array( $currentver, $currentsql);
\r
1112 // Read an option from DB (or from cache if available). Return value or $default if not found
\r
1113 function yourls_get_option( $option_name, $default = false ) {
\r
1116 // Allow plugins to short-circuit options
\r
1117 $pre = yourls_apply_filter( 'shunt_option_'.$option_name, false );
\r
1118 if ( false !== $pre )
\r
1121 if ( !isset( $ydb->option[$option_name] ) ) {
\r
1122 $table = YOURLS_DB_TABLE_OPTIONS;
\r
1123 $option_name = yourls_escape( $option_name );
\r
1124 $row = $ydb->get_row( "SELECT `option_value` FROM `$table` WHERE `option_name` = '$option_name' LIMIT 1" );
\r
1125 if ( is_object( $row) ) { // Has to be get_row instead of get_var because of funkiness with 0, false, null values
\r
1126 $value = $row->option_value;
\r
1127 } else { // option does not exist, so we must cache its non-existence
\r
1128 $value = $default;
\r
1130 $ydb->option[$option_name] = yourls_maybe_unserialize( $value );
\r
1133 return yourls_apply_filter( 'get_option_'.$option_name, $ydb->option[$option_name] );
\r
1136 // Read all options from DB at once
\r
1137 function yourls_get_all_options() {
\r
1139 $table = YOURLS_DB_TABLE_OPTIONS;
\r
1141 $allopt = $ydb->get_results("SELECT `option_name`, `option_value` FROM `$table` WHERE 1=1");
\r
1143 foreach( (array)$allopt as $option ) {
\r
1144 $ydb->option[$option->option_name] = yourls_maybe_unserialize( $option->option_value );
\r
1148 // Update (add if doesn't exist) an option to DB
\r
1149 function yourls_update_option( $option_name, $newvalue ) {
\r
1151 $table = YOURLS_DB_TABLE_OPTIONS;
\r
1153 $safe_option_name = yourls_escape( $option_name );
\r
1155 $oldvalue = yourls_get_option( $safe_option_name );
\r
1157 // If the new and old values are the same, no need to update.
\r
1158 if ( $newvalue === $oldvalue )
\r
1161 if ( false === $oldvalue ) {
\r
1162 yourls_add_option( $option_name, $newvalue );
\r
1166 $_newvalue = yourls_escape( yourls_maybe_serialize( $newvalue ) );
\r
1168 yourls_do_action( 'update_option', $option_name, $oldvalue, $newvalue );
\r
1170 $ydb->query( "UPDATE `$table` SET `option_value` = '$_newvalue' WHERE `option_name` = '$option_name'");
\r
1172 if ( $ydb->rows_affected == 1 ) {
\r
1173 $ydb->option[$option_name] = $newvalue;
\r
1179 // Add an option to the DB
\r
1180 function yourls_add_option( $name, $value = '' ) {
\r
1182 $table = YOURLS_DB_TABLE_OPTIONS;
\r
1183 $safe_name = yourls_escape( $name );
\r
1185 // Make sure the option doesn't already exist
\r
1186 if ( false !== yourls_get_option( $safe_name ) )
\r
1189 $_value = yourls_escape( yourls_maybe_serialize( $value ) );
\r
1191 yourls_do_action( 'add_option', $safe_name, $_value );
\r
1193 $ydb->query( "INSERT INTO `$table` (`option_name`, `option_value`) VALUES ('$name', '$_value')" );
\r
1194 $ydb->option[$name] = $value;
\r
1199 // Delete an option from the DB
\r
1200 function yourls_delete_option( $name ) {
\r
1202 $table = YOURLS_DB_TABLE_OPTIONS;
\r
1203 $name = yourls_escape( $name );
\r
1205 // Get the ID, if no ID then return
\r
1206 $option = $ydb->get_row( "SELECT option_id FROM `$table` WHERE `option_name` = '$name'" );
\r
1207 if ( is_null($option) || !$option->option_id )
\r
1210 yourls_do_action( 'delete_option', $option_name );
\r
1212 $ydb->query( "DELETE FROM `$table` WHERE `option_name` = '$name'" );
\r
1218 // Serialize data if needed. Stolen from WordPress
\r
1219 function yourls_maybe_serialize( $data ) {
\r
1220 if ( is_array( $data ) || is_object( $data ) )
\r
1221 return serialize( $data );
\r
1223 if ( yourls_is_serialized( $data ) )
\r
1224 return serialize( $data );
\r
1229 // Check value to find if it was serialized. Stolen from WordPress
\r
1230 function yourls_is_serialized( $data ) {
\r
1231 // if it isn't a string, it isn't serialized
\r
1232 if ( !is_string( $data ) )
\r
1234 $data = trim( $data );
\r
1235 if ( 'N;' == $data )
\r
1237 if ( !preg_match( '/^([adObis]):/', $data, $badions ) )
\r
1239 switch ( $badions[1] ) {
\r
1243 if ( preg_match( "/^{$badions[1]}:[0-9]+:.*[;}]\$/s", $data ) )
\r
1249 if ( preg_match( "/^{$badions[1]}:[0-9.E-]+;\$/", $data ) )
\r
1256 // Unserialize value only if it was serialized. Stolen from WP
\r
1257 function yourls_maybe_unserialize( $original ) {
\r
1258 if ( yourls_is_serialized( $original ) ) // don't attempt to unserialize data that wasn't serialized going in
\r
1259 return @unserialize( $original );
\r
1263 // Determine if the current page is private
\r
1264 function yourls_is_private() {
\r
1267 if ( defined('YOURLS_PRIVATE') && YOURLS_PRIVATE == true ) {
\r
1269 // Allow overruling for particular pages:
\r
1272 if( yourls_is_API() ) {
\r
1273 if( !defined('YOURLS_PRIVATE_API') || YOURLS_PRIVATE_API != false )
\r
1277 } elseif( yourls_is_infos() ) {
\r
1278 if( !defined('YOURLS_PRIVATE_INFOS') || YOURLS_PRIVATE_INFOS !== false )
\r
1288 return yourls_apply_filter( 'is_private', $private );
\r
1291 // Show login form if required
\r
1292 function yourls_maybe_require_auth() {
\r
1293 if( yourls_is_private() )
\r
1294 require_once( YOURLS_INC.'/auth.php' );
\r
1297 // Return word or words if more than one
\r
1298 function yourls_plural( $word, $count=1 ) {
\r
1299 return $word . ($count > 1 ? 's' : '');
\r
1302 // Return trimmed string
\r
1303 function yourls_trim_long_string( $string, $length = 60, $append = '[...]' ) {
\r
1304 $newstring = $string;
\r
1305 if( function_exists('mb_substr') ) {
\r
1306 if ( mb_strlen( $newstring ) > $length ) {
\r
1307 $newstring = mb_substr( $newstring, 0, $length - mb_strlen( $append ), 'UTF-8' ) . $append;
\r
1310 if ( strlen( $newstring ) > $length ) {
\r
1311 $newstring = substr( $newstring, 0, $length - strlen( $append ) ) . $append;
\r
1314 return yourls_apply_filter( 'trim_long_string', $newstring, $string, $length, $append );
\r
1317 // Allow several short URLs for the same long URL ?
\r
1318 function yourls_allow_duplicate_longurls() {
\r
1319 // special treatment if API to check for WordPress plugin requests
\r
1320 if( yourls_is_API() ) {
\r
1321 if ( isset($_REQUEST['source']) && $_REQUEST['source'] == 'plugin' )
\r
1324 return ( defined( 'YOURLS_UNIQUE_URLS' ) && YOURLS_UNIQUE_URLS == false );
\r
1327 // Return list of all shorturls associated to the same long URL. Returns NULL or array of keywords.
\r
1328 function yourls_get_duplicate_keywords( $longurl ) {
\r
1329 if( !yourls_allow_duplicate_longurls() )
\r
1333 $longurl = yourls_escape( yourls_sanitize_url($longurl) );
\r
1334 $table = YOURLS_DB_TABLE_URL;
\r
1336 $return = $ydb->get_col( "SELECT `keyword` FROM `$table` WHERE `url` = '$longurl'" );
\r
1337 return yourls_apply_filter( 'get_duplicate_keywords', $return, $longurl );
\r
1340 // Check if an IP shortens URL too fast to prevent DB flood. Return true, or die.
\r
1341 function yourls_check_IP_flood( $ip = '' ) {
\r
1343 // Allow plugins to short-circuit the whole function
\r
1344 $pre = yourls_apply_filter( 'shunt_check_IP_flood', false, $ip );
\r
1345 if ( false !== $pre )
\r
1348 yourls_do_action( 'pre_check_ip_flood', $ip ); // at this point $ip can be '', check it if your plugin hooks in here
\r
1351 ( defined('YOURLS_FLOOD_DELAY_SECONDS') && YOURLS_FLOOD_DELAY_SECONDS === 0 ) ||
\r
1352 !defined('YOURLS_FLOOD_DELAY_SECONDS')
\r
1356 $ip = ( $ip ? yourls_sanitize_ip( $ip ) : yourls_get_IP() );
\r
1358 // Don't throttle whitelist IPs
\r
1359 if( defined('YOURLS_FLOOD_IP_WHITELIST' && YOURLS_FLOOD_IP_WHITELIST ) ) {
\r
1360 $whitelist_ips = explode( ',', YOURLS_FLOOD_IP_WHITELIST );
\r
1361 foreach( (array)$whitelist_ips as $whitelist_ip ) {
\r
1362 $whitelist_ip = trim( $whitelist_ip );
\r
1363 if ( $whitelist_ip == $ip )
\r
1368 // Don't throttle logged in users
\r
1369 if( yourls_is_private() ) {
\r
1370 if( yourls_is_valid_user() === true )
\r
1374 yourls_do_action( 'check_ip_flood', $ip );
\r
1377 $table = YOURLS_DB_TABLE_URL;
\r
1379 $lasttime = $ydb->get_var( "SELECT `timestamp` FROM $table WHERE `ip` = '$ip' ORDER BY `timestamp` DESC LIMIT 1" );
\r
1381 $now = date( 'U' );
\r
1382 $then = date( 'U', strtotime( $lasttime ) );
\r
1383 if( ( $now - $then ) <= YOURLS_FLOOD_DELAY_SECONDS ) {
\r
1385 yourls_do_action( 'ip_flood', $ip, $now - $then );
\r
1386 yourls_die( 'Too many URLs added too fast. Slow down please.', 'Forbidden', 403 );
\r
1393 // Check if YOURLS is installed
\r
1394 function yourls_is_installed() {
\r
1395 static $is_installed = false;
\r
1396 if ( $is_installed === false ) {
\r
1397 $check_14 = $check_13 = false;
\r
1399 if( defined('YOURLS_DB_TABLE_NEXTDEC') )
\r
1400 $check_13 = $ydb->get_var('SELECT `next_id` FROM '.YOURLS_DB_TABLE_NEXTDEC);
\r
1401 $check_14 = yourls_get_option( 'version' );
\r
1402 $is_installed = $check_13 || $check_14;
\r
1404 return yourls_apply_filter( 'is_installed', $is_installed );
\r
1407 // Generate random string of (int)$length length and type $type (see function for details)
\r
1408 function yourls_rnd_string ( $length = 5, $type = 0, $charlist = '' ) {
\r
1410 $length = intval( $length );
\r
1412 // define possible characters
\r
1413 switch ( $type ) {
\r
1415 // custom char list, or comply to charset as defined in config
\r
1417 $possible = $charlist ? $charlist : yourls_get_shorturl_charset() ;
\r
1420 // no vowels to make no offending word, no 0/1/o/l to avoid confusion between letters & digits. Perfect for passwords.
\r
1422 $possible = "23456789bcdfghjkmnpqrstvwxyz";
\r
1425 // Same, with lower + upper
\r
1427 $possible = "23456789bcdfghjkmnpqrstvwxyzBCDFGHJKMNPQRSTVWXYZ";
\r
1430 // all letters, lowercase
\r
1432 $possible = "abcdefghijklmnopqrstuvwxyz";
\r
1435 // all letters, lowercase + uppercase
\r
1437 $possible = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
\r
1440 // all digits & letters lowercase
\r
1442 $possible = "0123456789abcdefghijklmnopqrstuvwxyz";
\r
1445 // all digits & letters lowercase + uppercase
\r
1447 $possible = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
\r
1453 while ($i < $length) {
\r
1454 $str .= substr($possible, mt_rand(0, strlen($possible)-1), 1);
\r
1458 return yourls_apply_filter( 'rnd_string', $str, $length, $type, $charlist );
\r
1461 // Return salted string
\r
1462 function yourls_salt( $string ) {
\r
1463 $salt = defined('YOURLS_COOKIEKEY') ? YOURLS_COOKIEKEY : md5(__FILE__) ;
\r
1464 return yourls_apply_filter( 'yourls_salt', md5 ($string . $salt), $string );
\r
1467 // Add a query var to a URL and return URL. Completely stolen from WP.
\r
1468 // Works with one of these parameter patterns:
\r
1469 // array( 'var' => 'value' )
\r
1470 // array( 'var' => 'value' ), $url
\r
1472 // 'var', 'value', $url
\r
1473 // If $url ommited, uses $_SERVER['REQUEST_URI']
\r
1474 function yourls_add_query_arg() {
\r
1476 if ( is_array( func_get_arg(0) ) ) {
\r
1477 if ( @func_num_args() < 2 || false === @func_get_arg( 1 ) )
\r
1478 $uri = $_SERVER['REQUEST_URI'];
\r
1480 $uri = @func_get_arg( 1 );
\r
1482 if ( @func_num_args() < 3 || false === @func_get_arg( 2 ) )
\r
1483 $uri = $_SERVER['REQUEST_URI'];
\r
1485 $uri = @func_get_arg( 2 );
\r
1488 $uri = str_replace( '&', '&', $uri );
\r
1491 if ( $frag = strstr( $uri, '#' ) )
\r
1492 $uri = substr( $uri, 0, -strlen( $frag ) );
\r
1496 if ( preg_match( '|^https?://|i', $uri, $matches ) ) {
\r
1497 $protocol = $matches[0];
\r
1498 $uri = substr( $uri, strlen( $protocol ) );
\r
1503 if ( strpos( $uri, '?' ) !== false ) {
\r
1504 $parts = explode( '?', $uri, 2 );
\r
1505 if ( 1 == count( $parts ) ) {
\r
1507 $query = $parts[0];
\r
1509 $base = $parts[0] . '?';
\r
1510 $query = $parts[1];
\r
1512 } elseif ( !empty( $protocol ) || strpos( $uri, '=' ) === false ) {
\r
1513 $base = $uri . '?';
\r
1520 parse_str( $query, $qs );
\r
1521 $qs = yourls_urlencode_deep( $qs ); // this re-URL-encodes things that were already in the query string
\r
1522 if ( is_array( func_get_arg( 0 ) ) ) {
\r
1523 $kayvees = func_get_arg( 0 );
\r
1524 $qs = array_merge( $qs, $kayvees );
\r
1526 $qs[func_get_arg( 0 )] = func_get_arg( 1 );
\r
1529 foreach ( (array) $qs as $k => $v ) {
\r
1530 if ( $v === false )
\r
1534 $ret = http_build_query( $qs );
\r
1535 $ret = trim( $ret, '?' );
\r
1536 $ret = preg_replace( '#=(&|$)#', '$1', $ret );
\r
1537 $ret = $protocol . $base . $ret . $frag;
\r
1538 $ret = rtrim( $ret, '?' );
\r
1542 // Navigates through an array and encodes the values to be used in a URL. Stolen from WP, used in yourls_add_query_arg()
\r
1543 function yourls_urlencode_deep($value) {
\r
1544 $value = is_array($value) ? array_map('yourls_urlencode_deep', $value) : urlencode($value);
\r
1548 // Remove arg from query. Opposite of yourls_add_query_arg. Stolen from WP.
\r
1549 function yourls_remove_query_arg( $key, $query = false ) {
\r
1550 if ( is_array( $key ) ) { // removing multiple keys
\r
1551 foreach ( $key as $k )
\r
1552 $query = add_query_arg( $k, false, $query );
\r
1555 return add_query_arg( $key, false, $query );
\r
1558 // Return a time-dependent string for nonce creation
\r
1559 function yourls_tick() {
\r
1560 return ceil( time() / YOURLS_NONCE_LIFE );
\r
1563 // Create a time limited, action limited and user limited token
\r
1564 function yourls_create_nonce( $action, $user = false ) {
\r
1565 if( false == $user )
\r
1566 $user = defined('YOURLS_USER') ? YOURLS_USER : '-1';
\r
1567 $tick = yourls_tick();
\r
1568 return substr( yourls_salt($tick . $action . $user), 0, 10 );
\r
1571 // Create a nonce field for inclusion into a form
\r
1572 function yourls_nonce_field( $action, $name = 'nonce', $user = false, $echo = true ) {
\r
1573 $field = '<input type="hidden" id="'.$name.'" name="'.$name.'" value="'.yourls_create_nonce( $action, $user ).'" />';
\r
1579 // Add a nonce to a URL. If URL omitted, adds nonce to current URL
\r
1580 function yourls_nonce_url( $action, $url = false, $name = 'nonce', $user = false ) {
\r
1581 $nonce = yourls_create_nonce( $action, $user );
\r
1582 return yourls_add_query_arg( $name, $nonce, $url );
\r
1585 // Check validity of a nonce (ie time span, user and action match).
\r
1586 // Returns true if valid, dies otherwise (yourls_die() or die($return) if defined)
\r
1587 // if $nonce is false or unspecified, it will use $_REQUEST['nonce']
\r
1588 function yourls_verify_nonce( $action, $nonce = false, $user = false, $return = '' ) {
\r
1590 if( false == $user )
\r
1591 $user = defined('YOURLS_USER') ? YOURLS_USER : '-1';
\r
1593 // get current nonce value
\r
1594 if( false == $nonce && isset( $_REQUEST['nonce'] ) )
\r
1595 $nonce = $_REQUEST['nonce'];
\r
1597 // what nonce should be
\r
1598 $valid = yourls_create_nonce( $action, $user );
\r
1600 if( $nonce == $valid ) {
\r
1605 yourls_die( 'Unauthorized action or expired link', 'Error', 403 );
\r
1609 // Sanitize a version number (1.4.1-whatever -> 1.4.1)
\r
1610 function yourls_sanitize_version( $ver ) {
\r
1611 return preg_replace( '/[^0-9.]/', '', $ver );
\r
1614 // Converts keyword into short link (prepend with YOURLS base URL)
\r
1615 function yourls_link( $keyword = '' ) {
\r
1616 $link = YOURLS_SITE . '/' . yourls_sanitize_keyword( $keyword );
\r
1617 return yourls_apply_filter( 'yourls_link', $link, $keyword );
\r
1620 // Check if we're in API mode. Returns bool
\r
1621 function yourls_is_API() {
\r
1622 if ( defined('YOURLS_API') && YOURLS_API == true )
\r
1627 // Check if we're in Ajax mode. Returns bool
\r
1628 function yourls_is_Ajax() {
\r
1629 if ( defined('YOURLS_AJAX') && YOURLS_AJAX == true )
\r
1634 // Check if we're in GO mode (yourls-go.php). Returns bool
\r
1635 function yourls_is_GO() {
\r
1636 if ( defined('YOURLS_GO') && YOURLS_GO == true )
\r
1641 // Check if we're displaying stats infos (yourls-infos.php). Returns bool
\r
1642 function yourls_is_infos() {
\r
1643 if ( defined('YOURLS_INFOS') && YOURLS_INFOS == true )
\r
1648 // Check if we'll need interface display function (ie not API or redirection)
\r
1649 function yourls_has_interface() {
\r
1650 if( yourls_is_API() or yourls_is_GO() )
\r
1655 // Check if we're in the admin area. Returns bool
\r
1656 function yourls_is_admin() {
\r
1657 if ( defined('YOURLS_ADMIN') && YOURLS_ADMIN == true )
\r
1662 // Check if the server seems to be running on Windows. Not exactly sure how reliable this is.
\r
1663 function yourls_is_windows() {
\r
1664 return defined( 'DIRECTORY_SEPARATOR' ) && DIRECTORY_SEPARATOR == '\\';
\r
1667 // Check if SSL is required. Returns bool.
\r
1668 function yourls_needs_ssl() {
\r
1669 if ( defined('YOURLS_ADMIN_SSL') && YOURLS_ADMIN_SSL == true )
\r
1674 // Return admin link, with SSL preference if applicable.
\r
1675 function yourls_admin_url( $page = '' ) {
\r
1676 $admin = YOURLS_SITE . '/admin/' . $page;
\r
1677 if( yourls_is_ssl() or yourls_needs_ssl() )
\r
1678 $admin = str_replace('http://', 'https://', $admin);
\r
1679 return yourls_apply_filter( 'admin_url', $admin, $page );
\r
1682 // Return YOURLS_SITE, with SSL preference
\r
1683 function yourls_site_url( $echo = true ) {
\r
1684 $site = YOURLS_SITE;
\r
1685 // Do not enforce (checking yourls_need_ssl() ) but check current usage so it won't force SSL on non-admin pages
\r
1686 if( yourls_is_ssl() )
\r
1687 $site = str_replace( 'http://', 'https://', $site );
\r
1688 $site = yourls_apply_filter( 'site_url', $site );
\r
1694 // Check if SSL is used, returns bool. Stolen from WP.
\r
1695 function yourls_is_ssl() {
\r
1697 if ( isset($_SERVER['HTTPS']) ) {
\r
1698 if ( 'on' == strtolower($_SERVER['HTTPS']) )
\r
1700 if ( '1' == $_SERVER['HTTPS'] )
\r
1702 } elseif ( isset($_SERVER['SERVER_PORT']) && ( '443' == $_SERVER['SERVER_PORT'] ) ) {
\r
1705 return yourls_apply_filter( 'is_ssl', $is_ssl );
\r
1709 // Get a remote page <title>, return a string (either title or url)
\r
1710 function yourls_get_remote_title( $url ) {
\r
1711 // Allow plugins to short-circuit the whole function
\r
1712 $pre = yourls_apply_filter( 'shunt_get_remote_title', false, $url );
\r
1713 if ( false !== $pre )
\r
1716 require_once( YOURLS_INC.'/functions-http.php' );
\r
1718 $url = yourls_sanitize_url( $url );
\r
1720 $title = $charset = false;
\r
1722 $content = yourls_get_remote_content( $url );
\r
1724 // If false, return url as title.
\r
1725 // Todo: improve this with temporary title when shorturl_meta available?
\r
1726 if( false === $content )
\r
1729 if( $content !== false ) {
\r
1730 // look for <title>
\r
1731 if ( preg_match('/<title>(.*?)<\/title>/is', $content, $found ) ) {
\r
1732 $title = $found[1];
\r
1736 // look for charset
\r
1737 // <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
\r
1738 if ( preg_match('/<meta[^>]*?charset=([^>]*?)\/?>/is', $content, $found ) ) {
\r
1739 $charset = trim($found[1], '"\' ');
\r
1744 // if title not found, guess if returned content was actually an error message
\r
1745 if( $title == false && strpos( $content, 'Error' ) === 0 ) {
\r
1746 $title = $content;
\r
1749 if( $title == false )
\r
1753 if( !yourls_seems_utf8( $title ) )
\r
1754 $title = utf8_encode( $title );
\r
1757 // Charset conversion. We use @ to remove warnings (mb_ functions are easily bitching about illegal chars)
\r
1758 if( function_exists( 'mb_convert_encoding' ) ) {
\r
1760 $title = @mb_convert_encoding( $title, 'UTF-8', $charset );
\r
1762 $title = @mb_convert_encoding( $title, 'UTF-8' );
\r
1766 // Remove HTML entities
\r
1767 $title = html_entity_decode( $title, ENT_QUOTES, 'UTF-8' );
\r
1769 // Strip out evil things
\r
1770 $title = yourls_sanitize_title( $title );
\r
1772 return yourls_apply_filter( 'get_remote_title', $title, $url );
\r
1775 // Sanitize a filename (no Win32 stuff)
\r
1776 function yourls_sanitize_filename( $file ) {
\r
1777 $file = str_replace( '\\', '/', $file ); // sanitize for Win32 installs
\r
1778 $file = preg_replace( '|/+|' ,'/', $file ); // remove any duplicate slash
\r
1782 // Check for maintenance mode that will shortcut everything
\r
1783 function yourls_check_maintenance_mode() {
\r
1785 // TODO: all cases that always display the sites (is_admin but not is_ajax?)
\r
1789 // first case: /user/maintenance.php file
\r
1790 if( file_exists( YOURLS_USERDIR.'/maintenance.php' ) ) {
\r
1791 include( YOURLS_USERDIR.'/maintenance.php' );
\r
1795 // second case: option in DB
\r
1796 if( yourls_get_option( 'maintenance_mode' ) !== false ) {
\r
1797 require_once( YOURLS_INC.'/functions-html.php' );
\r
1798 $title = 'Service temporarily unavailable';
\r
1799 $message = 'Our service is currently undergoing scheduled maintenance.</p>
\r
1800 <p>Things should not last very long, thank you for your patience and please excuse the inconvenience';
\r
1801 yourls_die( $message, $title , 503 );
\r
1806 // Toggle maintenance mode
\r
1807 function yourls_maintenance_mode( $maintenance = true ) {
\r
1808 yourls_update_option( 'maintenance_mode', (bool)$maintenance );
\r
1811 // Check if a string seems to be UTF-8. Stolen from WP.
\r
1812 function yourls_seems_utf8($str) {
\r
1813 $length = strlen($str);
\r
1814 for ($i=0; $i < $length; $i++) {
\r
1815 $c = ord($str[$i]);
\r
1816 if ($c < 0x80) $n = 0; # 0bbbbbbb
\r
1817 elseif (($c & 0xE0) == 0xC0) $n=1; # 110bbbbb
\r
1818 elseif (($c & 0xF0) == 0xE0) $n=2; # 1110bbbb
\r
1819 elseif (($c & 0xF8) == 0xF0) $n=3; # 11110bbb
\r
1820 elseif (($c & 0xFC) == 0xF8) $n=4; # 111110bb
\r
1821 elseif (($c & 0xFE) == 0xFC) $n=5; # 1111110b
\r
1822 else return false; # Does not match any model
\r
1823 for ($j=0; $j<$n; $j++) { # n bytes matching 10bbbbbb follow ?
\r
1824 if ((++$i == $length) || ((ord($str[$i]) & 0xC0) != 0x80))
\r
1831 // Quick UA check for mobile devices. Return boolean.
\r
1832 function yourls_is_mobile_device() {
\r
1833 // Strings searched
\r
1835 'android', 'blackberry', 'blazer',
\r
1836 'compal', 'elaine', 'fennec', 'hiptop',
\r
1837 'iemobile', 'iphone', 'ipod', 'ipad',
\r
1838 'iris', 'kindle', 'opera mobi', 'opera mini',
\r
1839 'palm', 'phone', 'pocket', 'psp', 'symbian',
\r
1840 'treo', 'wap', 'windows ce', 'windows phone'
\r
1843 // Current user-agent
\r
1844 $current = strtolower( $_SERVER['HTTP_USER_AGENT'] );
\r
1846 // Check and return
\r
1847 $is_mobile = ( str_replace( $mobiles, '', $current ) != $current );
\r
1848 return yourls_apply_filter( 'is_mobile_device', $is_mobile );
\r
1851 // Get request in YOURLS base (eg in 'http://site.com/yourls/abcd' get 'abdc')
\r
1852 function yourls_get_request() {
\r
1853 // Cover all cases: YOURLS_SITE https or not * current URL https or not
\r
1854 $base = str_replace( array( 'https', 'http' ), '', YOURLS_SITE );
\r
1855 $scheme = yourls_is_ssl() ? 'https' : 'http' ;
\r
1857 // Extract the 'abdc' from the requested URL
\r
1858 $request = str_replace(
\r
1859 $scheme . $base.'/',
\r
1861 $scheme . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']
\r
1864 return yourls_apply_filter( 'get_request', $request );
\r
1867 // Change protocol to match current scheme used (http or https)
\r
1868 function yourls_match_current_protocol( $url, $normal = 'http', $ssl = 'https' ) {
\r
1869 if( yourls_is_ssl() )
\r
1870 $url = str_replace( $normal, $ssl, $url );
\r
1874 // Fix $_SERVER['REQUEST_URI'] variable for various setups. Stolen from WP.
\r
1875 function yourls_fix_request_uri() {
\r
1877 $default_server_values = array(
\r
1878 'SERVER_SOFTWARE' => '',
\r
1879 'REQUEST_URI' => '',
\r
1881 $_SERVER = array_merge( $default_server_values, $_SERVER );
\r
1883 // Fix for IIS when running with PHP ISAPI
\r
1884 if ( empty( $_SERVER['REQUEST_URI'] ) || ( php_sapi_name() != 'cgi-fcgi' && preg_match( '/^Microsoft-IIS\//', $_SERVER['SERVER_SOFTWARE'] ) ) ) {
\r
1886 // IIS Mod-Rewrite
\r
1887 if ( isset( $_SERVER['HTTP_X_ORIGINAL_URL'] ) ) {
\r
1888 $_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_ORIGINAL_URL'];
\r
1890 // IIS Isapi_Rewrite
\r
1891 else if ( isset( $_SERVER['HTTP_X_REWRITE_URL'] ) ) {
\r
1892 $_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_REWRITE_URL'];
\r
1894 // Use ORIG_PATH_INFO if there is no PATH_INFO
\r
1895 if ( !isset( $_SERVER['PATH_INFO'] ) && isset( $_SERVER['ORIG_PATH_INFO'] ) )
\r
1896 $_SERVER['PATH_INFO'] = $_SERVER['ORIG_PATH_INFO'];
\r
1898 // Some IIS + PHP configurations puts the script-name in the path-info (No need to append it twice)
\r
1899 if ( isset( $_SERVER['PATH_INFO'] ) ) {
\r
1900 if ( $_SERVER['PATH_INFO'] == $_SERVER['SCRIPT_NAME'] )
\r
1901 $_SERVER['REQUEST_URI'] = $_SERVER['PATH_INFO'];
\r
1903 $_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] . $_SERVER['PATH_INFO'];
\r
1906 // Append the query string if it exists and isn't null
\r
1907 if ( ! empty( $_SERVER['QUERY_STRING'] ) ) {
\r
1908 $_SERVER['REQUEST_URI'] .= '?' . $_SERVER['QUERY_STRING'];
\r