docs/include/lib/output.inc.php

   1 <?php
   2 /************************************************************************/
   3 /* AFrame                                                               */
   4 /************************************************************************/
   5 /* Copyright (c) 2009                                                   */
   6 /* Adaptive Technology Resource Centre / University of Toronto          */
   7 /*                                                                      */
   8 /* This program is free software. You can redistribute it and/or        */
   9 /* modify it under the terms of the GNU General Public License          */
  10 /* as published by the Free Software Foundation.                        */
  11 /************************************************************************/
  12
  13 if (!defined('AF_INCLUDE_PATH')) { exit; }
  14 require(AF_INCLUDE_PATH . 'classes/DAO/LanguageTextDAO.class.php');
  15
  16 /**********************************************************************************/
  17 /* Output functions found in this file, in order:
  18 /*
  19 /*      - AC(term)
  20 /*
  21 /**********************************************************************************/
  22
  23 /**
  24 * Converts language code to actual language message, caches them according to page url
  25 * @access       public
  26 * @param        args                            unlimited number of arguments allowed but first arg MUST be name of the language variable/term
  27 *                                                               i.e             $args[0] = the term to the format string $_template[term]
  28 *                                                                               $args[1..x] = optional arguments to the formatting string
  29 * @return       string|array            full resulting message
  30 * @see          $db                             in include/vitals.inc.php
  31 * @see          cache()                         in include/phpCache/phpCache.inc.php
  32 * @see          cache_variable()        in include/phpCache/phpCache.inc.php
  33 * @author       Joel Kronenberg
  34 */
  35 function _AT() {
  36         global $_cache_template, $lang_et, $_rel_url;
  37         static $_template;
  38
  39         $args = func_get_args();
  40
  41         if ($args[0] == "") return "";
  42
  43         $languageTextDAO = new LanguageTextDAO();
  44
  45         // a feedback msg
  46         if (!is_array($args[0])) {
  47                 /**
  48                  * Added functionality for translating language code String (AF_ERROR|AF_INFOS|AF_WARNING|AF_FEEDBACK).*
  49                  * to its text and returning the result. No caching needed.
  50                  * @author Jacek Materna
  51                  */
  52
  53                 // Check for specific language prefix, extendible as needed
  54                 // 0002767:  a substring+in_array test should be faster than a preg_match test.
  55                 // replaced the preg_match with a test of the substring.
  56                 $sub_arg = substr($args[0], 0, 7); // 7 is the shortest type of msg (AF_INFO)
  57                 if (in_array($sub_arg, array('AF_ERRO','AF_INFO','AF_WARN','AF_FEED','AF_CONF'))) {
  58                         global $_base_path, $addslashes;
  59
  60                         $args[0] = $addslashes($args[0]);
  61
  62                         /* get $_msgs_new from the DB */
  63                         $rows = $languageTextDAO->getMsgByTermAndLang($args[0], $_SESSION['lang']);
  64                         $msgs = '';
  65
  66                         if (is_array($rows))
  67                         {
  68                                 $row = $rows[0];
  69                                 // do not cache key as a digit (no contstant(), use string)
  70                                 $msgs = str_replace('SITE_URL/', $_base_path, $row['text']);
  71                                 if (defined('AF_DEVEL') && AF_DEVEL) {
  72                                         $msgs .= ' <small><small>('. $args[0] .')</small></small>';
  73                                 }
  74                         }
  75
  76                         return $msgs;
  77                 }
  78         }
  79
  80         // a template variable
  81         if (!isset($_template)) {
  82                 $url_parts = parse_url(AF_BASE_HREF);
  83                 $name = substr($_SERVER['PHP_SELF'], strlen($url_parts['path'])-1);
  84
  85                 if ( !($lang_et = cache(120, 'lang', $_SESSION['lang'].'_'.$name)) ) {
  86                         /* get $_template from the DB */
  87                         $rows = $languageTextDAO->getAllTemplateByLang($_SESSION['lang']);
  88
  89                         if (is_array($rows))
  90                         {
  91                                 foreach ($rows as $id => $row)
  92                                 {
  93                                         //Do not overwrite the variable that existed in the cache_template already.
  94                                         //The edited terms (_c_template) will always be at the top of the resultset
  95                                         //0003279
  96                                         if (isset($_cache_template[$row['term']])){
  97                                                 continue;
  98                                         }
  99
 100                                         // saves us from doing an ORDER BY
 101                                         if ($row['language_code'] == $_SESSION['lang']) {
 102                                                 $_cache_template[$row['term']] = stripslashes($row['text']);
 103                                         } else if (!isset($_cache_template[$row['term']])) {
 104                                                 $_cache_template[$row['term']] = stripslashes($row['text']);
 105                                         }
 106                                 }
 107                         }
 108
 109                         cache_variable('_cache_template');
 110                         endcache(true, false);
 111                 }
 112                 $_template = $_cache_template;
 113         }
 114
 115         $num_args = func_num_args();
 116         if (is_array($args[0])) {
 117                 $args = $args[0];
 118                 $num_args = count($args);
 119         }
 120         $format   = array_shift($args);
 121
 122         if (isset($_template[$format]) && count($args) > 0) {
 123                 $outString      = vsprintf($_template[$format], $args);
 124                 $str = ob_get_contents();
 125         } else {
 126                 $outString = '';
 127         }
 128
 129         if ($outString === false) {
 130                 return ('[Error parsing language. Variable: <code>'.$format.'</code>. Language: <code>'.$_SESSION['lang'].'</code> ]');
 131         }
 132
 133         if (empty($outString)) {
 134
 135                 $rows = $languageTextDAO->getByTermAndLang($format, $_SESSION['lang']);
 136                 if (is_array($rows))
 137                 {
 138                         $row = $rows[0];
 139                         $_template[$row['term']] = stripslashes($row['text']);
 140                         $outString = $_template[$row['term']];
 141                 }
 142
 143                 if (empty($outString)) {
 144                         return ('[ '.$format.' ]');
 145                 }
 146         }
 147
 148         return $outString;
 149 }
 150
 151 /*
 152         The following options were added as language dependant:
 153         %D: A textual representation of a week, three letters Mon through Sun
 154         %F: A full textual representation of a month, such as January or March January through December
 155         %l (lowercase 'L'): A full textual representation of the day of the week Sunday through Saturday
 156         %M: A short textual representation of a month, three letters Jan through Dec
 157
 158         Support for the following maybe added later:
 159         ?? %S: English ordinal suffix for the day of the month, 2 characters st, nd, rd or th. Works well with j
 160         ?? %a: Lowercase Ante meridiem and Post meridiem am or pm
 161         ?? %A: Uppercase Ante meridiem and Post meridiem AM or PM
 162
 163         valid formAF_types:
 164         AF_DATE_MYSQL_DATETIME:         YYYY-MM-DD HH:MM:SS
 165         AF_DATE_MYSQL_TIMESTAMP_14:     YYYYMMDDHHMMSS
 166         AF_DATE_UNIX_TIMESTAMP:         seconds since epoch
 167         AF_DATE_INDEX_VALUE:            0-x, index into a date array
 168 */
 169 function AF_date($format='%Y-%M-%d', $timestamp = '', $formAF_type=AF_DATE_MYSQL_DATETIME) {
 170         static $day_name_ext, $day_name_con, $month_name_ext, $month_name_con;
 171         global $_config;
 172
 173         if (!isset($day_name_ext)) {
 174                 $day_name_ext = array(  'date_sunday',
 175                                                                 'date_monday',
 176                                                                 'date_tuesday',
 177                                                                 'date_wednesday',
 178                                                                 'date_thursday',
 179                                                                 'date_friday',
 180                                                                 'date_saturday');
 181
 182                 $day_name_con = array(  'date_sun',
 183                                                                 'date_mon',
 184                                                                 'date_tue',
 185                                                                 'date_wed',
 186                                                                 'date_thu',
 187                                                                 'date_fri',
 188                                                                 'date_sat');
 189
 190                 $month_name_ext = array('date_january',
 191                                                                 'date_february',
 192                                                                 'date_march',
 193                                                                 'date_april',
 194                                                                 'date_may',
 195                                                                 'date_june',
 196                                                                 'date_july',
 197                                                                 'date_august',
 198                                                                 'date_september',
 199                                                                 'date_october',
 200                                                                 'date_november',
 201                                                                 'date_december');
 202
 203                 $month_name_con = array('date_jan',
 204                                                                 'date_feb',
 205                                                                 'date_mar',
 206                                                                 'date_apr',
 207                                                                 'date_may_short',
 208                                                                 'date_jun',
 209                                                                 'date_jul',
 210                                                                 'date_aug',
 211                                                                 'date_sep',
 212                                                                 'date_oct',
 213                                                                 'date_nov',
 214                                                                 'date_dec');
 215         }
 216
 217         if ($formAF_type == AF_DATE_INDEX_VALUE) {
 218                 // apply timezone offset
 219                 apply_timezone($timestamp);
 220
 221                 if ($format == '%D') {
 222                         return _AT($day_name_con[$timestamp-1]);
 223                 } else if ($format == '%l') {
 224                         return _AT($day_name_ext[$timestamp-1]);
 225                 } else if ($format == '%F') {
 226                         return _AT($month_name_ext[$timestamp-1]);
 227                 } else if ($format == '%M') {
 228                         return _AT($month_name_con[$timestamp-1]);
 229                 }
 230         }
 231
 232         if ($timestamp == '') {
 233                 $timestamp = time();
 234                 $formAF_type = AF_DATE_UNIX_TIMESTAMP;
 235         }
 236
 237         /* convert the date to a Unix timestamp before we do anything with it */
 238         if ($formAF_type == AF_DATE_MYSQL_DATETIME) {
 239                 $year   = substr($timestamp,0,4);
 240                 $month  = substr($timestamp,5,2);
 241                 $day    = substr($timestamp,8,2);
 242                 $hour   = substr($timestamp,11,2);
 243                 $min    = substr($timestamp,14,2);
 244                 $sec    = substr($timestamp,17,2);
 245             $timestamp  = mktime($hour, $min, $sec, $month, $day, $year);
 246
 247         } else if ($formAF_type == AF_DATE_MYSQL_TIMESTAMP_14) {
 248             $year               = substr($timestamp,0,4);
 249             $month              = substr($timestamp,4,2);
 250             $day                = substr($timestamp,6,2);
 251                 $hour           = substr($timestamp,8,2);
 252             $minute             = substr($timestamp,10,2);
 253             $second             = substr($timestamp,12,2);
 254             $timestamp  = mktime($hour, $minute, $second, $month, $day, $year);
 255         }
 256
 257         // apply timezone offset
 258         apply_timezone($timestamp);
 259
 260         /* pull out all the %X items from $format */
 261         $first_token = strpos($format, '%');
 262         if ($first_token === false) {
 263                 /* no tokens found */
 264                 return $timestamp;
 265         } else {
 266                 $tokened_format = substr($format, $first_token);
 267         }
 268         $tokens = explode('%', $tokened_format);
 269         array_shift($tokens);
 270         $num_tokens = count($tokens);
 271
 272         $output = $format;
 273         for ($i=0; $i<$num_tokens; $i++) {
 274                 $tokens[$i] = substr($tokens[$i],0,1);
 275
 276                 if ($tokens[$i] == 'D') {
 277                         $output = str_replace('%D', _AT($day_name_con[date('w', $timestamp)]),$output);
 278
 279                 } else if ($tokens[$i] == 'l') {
 280                         $output = str_replace('%l', _AT($day_name_ext[date('w', $timestamp)]),$output);
 281
 282                 } else if ($tokens[$i] == 'F') {
 283                         $output = str_replace('%F', _AT($month_name_ext[date('n', $timestamp)-1]),$output);
 284
 285                 } else if ($tokens[$i] == 'M') {
 286                         $output = str_replace('%M', _AT($month_name_con[date('n', $timestamp)-1]),$output);
 287
 288                 } else {
 289
 290                         /* this token doesn't need translating */
 291                         $value = date($tokens[$i], $timestamp);
 292                         if ($value != $tokens[$i]) {
 293                                 $output = str_replace('%'.$tokens[$i], $value, $output);
 294                         } /* else: this token isn't valid. so don't replace it. Eg. try %q */
 295                 }
 296         }
 297
 298         return $output;
 299 }
 300
 301 /**********************************************************************************************************/
 302         /**
 303         *       Transforms text based on formatting preferences.  Original $input is also changed (passed by reference).
 304         *       Can be called as:
 305         *       1) $output = AF_print($input, $name);
 306         *          echo $output;
 307         *
 308         *       2) echo AF_print($input, $name); // prefered method
 309         *
 310         * @access       public
 311         * @param        string $input                   text being transformed
 312         * @param        string $name                    the unique name of this field (convension: table_name.field_name)
 313         * @param        boolean $runtime_html   forcefully disables html formatting for $input (only used by fields that
 314         *                                                                       have the 'formatting' option
 315         * @return       string                                  transformed $input
 316         * @see          AF_FORMAT constants             in include/lib/constants.inc.php
 317         * @see          query_bit()                             in include/vitals.inc.php
 318         * @author       Joel Kronenberg
 319         */
 320         function AF_print($input, $name, $runtime_html = true) {
 321                 global $_field_formatting;
 322
 323                 if (!isset($_field_formatting[$name])) {
 324                         /* field not set, check if there's a global setting */
 325                         $parts = explode('.', $name);
 326
 327                         /* check if wildcard is set: */
 328                         if (isset($_field_formatting[$parts[0].'.*'])) {
 329                                 $name = $parts[0].'.*';
 330                         } else {
 331                                 /* field not set, and there's no global setting */
 332                                 /* same as AF_FORMAF_NONE */
 333                                 return $input;
 334                         }
 335                 }
 336
 337                 if (query_bit($_field_formatting[$name], AF_FORMAF_QUOTES)) {
 338                         $input = str_replace('"', '&quot;', $input);
 339                 }
 340
 341                 if (query_bit($_field_formatting[$name], AF_FORMAF_CONTENT_DIR)) {
 342                         $input = str_replace('CONTENT_DIR/', '', $input);
 343                 }
 344
 345                 if (query_bit($_field_formatting[$name], AF_FORMAF_HTML) && $runtime_html) {
 346                         /* what special things do we have to do if this is HTML ? remove unwanted HTML? validate? */
 347                 } else {
 348                         $input = str_replace('<', '&lt;', $input);
 349                         $input = nl2br($input);
 350                 }
 351
 352                 /* this has to be here, only because AF_FORMAF_HTML is the only check that has an else-block */
 353                 if ($_field_formatting[$name] === AF_FORMAF_NONE) {
 354                         return $input;
 355                 }
 356
 357                 if (query_bit($_field_formatting[$name], AF_FORMAF_EMOTICONS)) {
 358                         $input = smile_replace($input);
 359                 }
 360
 361                 if (query_bit($_field_formatting[$name], AF_FORMAF_ATCODES)) {
 362                         $input = trim(myCodes(' ' . $input . ' '));
 363                 }
 364
 365                 if (query_bit($_field_formatting[$name], AF_FORMAF_LINKS)) {
 366                         $input = trim(make_clickable(' ' . $input . ' '));
 367                 }
 368
 369                 if (query_bit($_field_formatting[$name], AF_FORMAF_IMAGES)) {
 370                         $input = trim(image_replace(' ' . $input . ' '));
 371                 }
 372
 373
 374                 return $input;
 375         }
 376
 377 /********************************************************************************************/
 378 // Global variables for emoticons
 379
 380 global $smile_pics;
 381 global $smile_codes;
 382 if (!isset($smile_pics)) {
 383         $smile_pics[0] = $_base_path.'images/forum/smile.gif';
 384         $smile_pics[1] = $_base_path.'images/forum/wink.gif';
 385         $smile_pics[2] = $_base_path.'images/forum/frown.gif';
 386         $smile_pics[3] = $_base_path.'images/forum/ohwell.gif';
 387         $smile_pics[4] = $_base_path.'images/forum/tongue.gif';
 388         $smile_pics[5] = $_base_path.'images/forum/51.gif';
 389         $smile_pics[6] = $_base_path.'images/forum/52.gif';
 390         $smile_pics[7] = $_base_path.'images/forum/54.gif';
 391         $smile_pics[8] = $_base_path.'images/forum/27.gif';
 392         $smile_pics[9] = $_base_path.'images/forum/19.gif';
 393         $smile_pics[10] = $_base_path.'images/forum/3.gif';
 394         $smile_pics[11] = $_base_path.'images/forum/56.gif';
 395 }
 396
 397 if (!isset($smile_codes)) {
 398         $smile_codes[0] = ':)';
 399         $smile_codes[1] = ';)';
 400         $smile_codes[2] = ':(';
 401         $smile_codes[3] = '::ohwell::';
 402         $smile_codes[4] = ':P';
 403         $smile_codes[5] = '::evil::';
 404         $smile_codes[6] = '::angry::';
 405         $smile_codes[7] = '::lol::';
 406         $smile_codes[8] = '::crazy::';
 407         $smile_codes[9] = '::tired::';
 408         $smile_codes[10] = '::confused::';
 409         $smile_codes[11] = '::muah::';
 410 }
 411
 412 /**
 413 * Replaces smile-code text into smilie image.
 414 * @access       public
 415 * @param        string $text            smile text to be transformed
 416 * @return       string                          transformed $text
 417 * @see          $smile_pics                     in include/lib/output.inc.php (above)
 418 * @see          $smile_codes            in include/lib/output.inc.php (above)
 419 * @author       Joel Kronenberg
 420 */
 421 function smile_replace($text) {
 422         global $smile_pics;
 423         global $smile_codes;
 424         static $smiles;
 425
 426         $smiles[0] = '<img src="'.$smile_pics[0].'" border="0" height="15" width="15" align="bottom" alt="'._AT('smile_smile').'" />';
 427         $smiles[1] = '<img src="'.$smile_pics[1].'" border="0" height="15" width="15" align="bottom" alt="'._AT('smile_wink').'" />';
 428         $smiles[2] = '<img src="'.$smile_pics[2].'" border="0" height="15" width="15" align="bottom" alt="'._AT('smile_frown').'" />';
 429         $smiles[3]= '<img src="'.$smile_pics[3].'" border="0" height="15" width="15" align="bottom" alt="'._AT('smile_oh_well').'" />';
 430         $smiles[4]= '<img src="'.$smile_pics[4].'" border="0" height="15" width="15" align="bottom" alt="'._AT('smile_tongue').'" />';
 431         $smiles[5]= '<img src="'.$smile_pics[5].'" border="0" height="15" width="15" align="bottom" alt="'._AT('smile_evil').'" />';
 432         $smiles[6]= '<img src="'.$smile_pics[6].'" border="0" height="15" width="15" align="bottom" alt="'._AT('smile_angry').'" />';
 433         $smiles[7]= '<img src="'.$smile_pics[7].'" border="0" height="15" width="15" align="bottom" alt="'._AT('smile_lol').'" />';
 434         $smiles[8]= '<img src="'.$smile_pics[8].'" border="0" height="15" width="15" align="bottom" alt="'._AT('smile_crazy').'" />';
 435         $smiles[9]= '<img src="'.$smile_pics[9].'" border="0" height="15" width="15" align="bottom" alt="'._AT('smile_tired').'" />';
 436         $smiles[10]= '<img src="'.$smile_pics[10].'" border="0" height="17" width="19" align="bottom" alt="'._AT('smile_confused').'" />';
 437         $smiles[11]= '<img src="'.$smile_pics[11].'" border="0" height="15" width="15" align="bottom" alt="'._AT('smile_muah').'" />';
 438
 439         $text = str_replace($smile_codes[0],$smiles[0],$text);
 440         $text = str_replace($smile_codes[1],$smiles[1],$text);
 441         $text = str_replace($smile_codes[2],$smiles[2],$text);
 442         $text = str_replace($smile_codes[3],$smiles[3],$text);
 443         $text = str_replace($smile_codes[4],$smiles[4],$text);
 444         $text = str_replace($smile_codes[5],$smiles[5],$text);
 445         $text = str_replace($smile_codes[6],$smiles[6],$text);
 446         $text = str_replace($smile_codes[7],$smiles[7],$text);
 447         $text = str_replace($smile_codes[8],$smiles[8],$text);
 448         $text = str_replace($smile_codes[9],$smiles[9],$text);
 449         $text = str_replace($smile_codes[10],$smiles[10],$text);
 450         $text = str_replace($smile_codes[11],$smiles[11],$text);
 451
 452         return $text;
 453 }
 454
 455
 456 /* Used specifically for the visual editor
 457 */
 458 function smile_javascript () {
 459         global $_base_path;
 460         global $smile_pics;
 461         global $smile_codes;
 462
 463         static $i = 0;
 464
 465         while ($smile_pics [$i]) {
 466                 echo 'case "'.$smile_codes[$i].'":'."\n";
 467                 echo 'pic = "'.$smile_pics[$i].'";'."\n";
 468                 echo 'break;'."\n";
 469                 $i++;
 470         }
 471 }
 472
 473 function myCodes($text, $html = false) {
 474         global $_base_path;
 475         global $HTTP_USER_AGENT;
 476
 477         if (substr($HTTP_USER_AGENT,0,11) == 'Mozilla/4.7') {
 478                 $text = str_replace('[quote]','</p><p class="block">',$text);
 479                 $text = str_replace('[/quote]','</p><p>',$text);
 480
 481                 $text = str_replace('[reply]','</p><p class="block">',$text);
 482                 $text = str_replace('[/reply]','</p><p>',$text);
 483         } else {
 484                 $text = str_replace('[quote]','<blockquote>',$text);
 485                 $text = str_replace('[/quote]','</blockquote><p>',$text);
 486
 487                 $text = str_replace('[reply]','</p><blockquote class="block"><p>',$text);
 488                 $text = str_replace('[/reply]','</p></blockquote><p>',$text);
 489         }
 490
 491         $text = str_replace('[b]','<strong>',$text);
 492         $text = str_replace('[/b]','</strong>',$text);
 493
 494         $text = str_replace('[i]','<em>',$text);
 495         $text = str_replace('[/i]','</em>',$text);
 496
 497         $text = str_replace('[u]','<u>',$text);
 498         $text = str_replace('[/u]','</u>',$text);
 499
 500         $text = str_replace('[center]','<center>',$text);
 501         $text = str_replace('[/center]','</center><p>',$text);
 502
 503         /* colours */
 504         $text = str_replace('[blue]','<span style="color: blue;">',$text);
 505         $text = str_replace('[/blue]','</span>',$text);
 506
 507         $text = str_replace('[orange]','<span style="color: orange;">',$text);
 508         $text = str_replace('[/orange]','</span>',$text);
 509
 510         $text = str_replace('[red]','<span style="color: red;">',$text);
 511         $text = str_replace('[/red]','</span>',$text);
 512
 513         $text = str_replace('[purple]','<span style="color: purple;">',$text);
 514         $text = str_replace('[/purple]','</span>',$text);
 515
 516         $text = str_replace('[green]','<span style="color: green;">',$text);
 517         $text = str_replace('[/green]','</span>',$text);
 518
 519         $text = str_replace('[gray]','<span style="color: gray;">',$text);
 520         $text = str_replace('[/gray]','</span>',$text);
 521
 522         $text = str_replace('[op]','<span class="bigspacer"></span> <a href="',$text);
 523         $text = str_replace('[/op]','">'._AT('view_entire_post').'</a>',$text);
 524
 525         $text = str_replace('[head1]','<h2>',$text);
 526         $text = str_replace('[/head1]','</h2>',$text);
 527
 528         $text = str_replace('[head2]','<h3>',$text);
 529         $text = str_replace('[/head2]','</h3>',$text);
 530
 531         $text = str_replace('[cid]',$_base_path.'content.php?cid='.$_SESSION['s_cid'],$text);
 532
 533         global $sequence_links;
 534         if (isset($sequence_links['previous']) && $sequence_links['previous']['url']) {
 535                 $text = str_replace('[pid]', $sequence_links['previous']['url'], $text);
 536         }
 537         if (isset($sequence_links['next']) && $sequence_links['next']['url']) {
 538                 $text = str_replace('[nid]', $sequence_links['next']['url'], $text);
 539         }
 540         if (isset($sequence_links['resume']) && $sequence_links['resume']['url']) {
 541                 $text = str_replace('[nid]', $sequence_links['resume']['url'], $text);
 542         }
 543         if (isset($sequence_links['first']) && $sequence_links['first']['url']) {
 544                 $text = str_replace('[fid]', $sequence_links['first']['url'], $text);
 545         }
 546
 547         /* contributed by Thomas M. Duffey <tduffey at homeboyz.com> */
 548         $html = !$html ? 0 : 1;
 549         $text = preg_replace("/\[code\]\s*(.*)\s*\[\\/code\]/Usei", "highlight_code(fix_quotes('\\1'), $html)", $text);
 550
 551         return $text;
 552 }
 553
 554 /* contributed by Thomas M. Duffey <tduffey at homeboyz.com> */
 555 function highlight_code($code, $html) {
 556         // XHTMLize PHP highlight_string output until it gets fixed in PHP
 557         static $search = array(
 558                 '<br>',
 559                 '<font',
 560                 '</font>',
 561                 'color="');
 562
 563         static $replace = array(
 564                 '<br />',
 565                 '<span',
 566                 '</span>',
 567                 'style="color:');
 568         if (!$html) {
 569                 $code = str_replace('&lt;', '<', $code);
 570                 $code = str_replace("\r", '', $code);
 571         }
 572
 573         return str_replace($search, $replace, highlight_string($code, true));
 574 }
 575
 576 /* contributed by Thomas M. Duffey <tduffey at homeboyz.com> */
 577 function fix_quotes($text){
 578         return str_replace('\\"', '"', $text);
 579 }
 580
 581 function embed_media($text) {
 582         if (preg_match("/\[media(\|[0-9]+\|[0-9]+)?\]*/", $text)==0){
 583                 return $text;
 584         }
 585
 586         $media_matches = Array();
 587
 588         /*
 589                 First, we search though the text for all different kinds of media defined by media tags and store the results in $media_matches.
 590
 591                 Then the different replacements for the different media tags are stored in $media_replace.
 592
 593                 Lastly, we loop through all $media_matches / $media_replaces. (We choose $media_replace as index because $media_matches is multi-dimensioned.) It is important that for each $media_matches there is a $media_replace with the same index. For each media match we check the width/height, or we use the default value of 425x350. We then replace the height/width/media1/media2 parameter placeholders in $media_replace with the correct ones, before running a str_replace on $text, replacing the given media with its correct replacement.
 594
 595         */
 596
 597         // youtube videos
 598         preg_match_all("#\[media[0-9a-z\|]*\]http://([a-z0-9\.]*)?youtube.com/watch\?v=([a-z0-9_-]+)\[/media\]#i",$text,$media_matches[1],PREG_SET_ORDER);
 599         $media_replace[1] = '<object width="##WIDTH##" height="##HEIGHT##"><param name="movie" value="http://##MEDIA1##youtube.com/v/##MEDIA2##"></param><embed src="http://##MEDIA1##youtube.com/v/##MEDIA2##" type="application/x-shockwave-flash" width="##WIDTH##" height="##HEIGHT##"></embed></object>';
 600
 601         // .mpg
 602         preg_match_all("#\[media[0-9a-z\|]*\]([.\w\d]+[^\s\"]+).mpg\[/media\]#i",$text,$media_matches[2],PREG_SET_ORDER);
 603         $media_replace[2] = "<object data=\"##MEDIA1##.mpg\" type=\"video/mpeg\" width=\"##WIDTH##\" height=\"##HEIGHT##\"><param name=\"src\" value=\"##MEDIA1##.mpg\"><param name=\"autoplay\" value=\"false\"><param name=\"autoStart\" value=\"0\"><a href=\"##MEDIA1##.mpg\">##MEDIA1##.mpg</a></object>";
 604
 605         // .avi
 606         preg_match_all("#\[media[0-9a-z\|]*\]([.\w\d]+[^\s\"]+).avi\[/media\]#i",$text,$media_matches[3],PREG_SET_ORDER);
 607         $media_replace[3] = "<object data=\"##MEDIA1##.avi\" type=\"video/x-msvideo\" width=\"##WIDTH##\" height=\"##HEIGHT##\"><param name=\"src\" value=\"##MEDIA1##.avi\"><param name=\"autoplay\" value=\"false\"><param name=\"autoStart\" value=\"0\"><a href=\"##MEDIA1##.avi\">##MEDIA1##.avi</a></object>";
 608
 609         // .wmv
 610         preg_match_all("#\[media[0-9a-z\|]*\]([.\w\d]+[^\s\"]+).wmv\[/media\]#i",$text,$media_matches[4],PREG_SET_ORDER);
 611         $media_replace[4] = "<object data=\"##MEDIA1##.wmv\" type=\"video/x-ms-wmv\" width=\"##WIDTH##\" height=\"##HEIGHT##\"><param name=\"src\" value=\"##MEDIA1##.wmv\"><param name=\"autoplay\" value=\"false\"><param name=\"autoStart\" value=\"0\"><a href=\"##MEDIA1##.wmv\">##MEDIA1##.wmv</a></object>";
 612
 613         // .mov
 614         preg_match_all("#\[media[0-9a-z\|]*\]([.\w\d]+[^\s\"]+).mov\[/media\]#i",$text,$media_matches[5],PREG_SET_ORDER);
 615         $media_replace[5] = "<object classid=\"clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B\" codebase=\"http://www.apple.com/qtactivex/qtplugin.cab\" width=\"##WIDTH##\" height=\"##HEIGHT##\"><param name=\"src\" value=\"##MEDIA1##.mov\"><param name=\"controller\" value=\"true\"><param name=\"autoplay\" value=\"false\"><!--[if gte IE 7]> <!--><object type=\"video/quicktime\" data=\"##MEDIA1##.mov\" width=\"##WIDTH##\" height=\"##HEIGHT##\"><param name=\"controller\" value=\"true\"><param name=\"autoplay\" value=\"false\"><a href=\"##MEDIA1##.mov\">##MEDIA1##.mov</a></object><!--<![endif]--><!--[if lt IE 7]><a href=\"##MEDIA1##.mov\">##MEDIA1##.mov</a><![endif]--></object>";
 616
 617         // .swf
 618         preg_match_all("#\[media[0-9a-z\|]*\]([.\w\d]+[^\s\"]+).swf\[/media\]#i",$text,$media_matches[6],PREG_SET_ORDER);
 619         $media_replace[6] = "<object type=\"application/x-shockwave-flash\" data=\"##MEDIA1##.swf\" width=\"##WIDTH##\" height=\"##HEIGHT##\">  <param name=\"movie\" value=\"##MEDIA1##.swf\"><param name=\"loop\" value=\"false\"><a href=\"##MEDIA1##.swf\">##MEDIA1##.swf</a></object>";
 620
 621         // .mp3
 622         preg_match_all("#\[media[0-9a-z\|]*\](.+[^\s\"]+).mp3\[/media\]#i",$text,$media_matches[7],PREG_SET_ORDER);
 623         $media_replace[7] = "<object type=\"audio/mpeg\" data=\"##MEDIA1##.mp3\" width=\"##WIDTH##\" height=\"##HEIGHT##\"><param name=\"src\" value=\"##MEDIA1##.mp3\"><param name=\"autoplay\" value=\"false\"><param name=\"autoStart\" value=\"0\"><a href=\"##MEDIA1##.mp3\">##MEDIA1##.mp3</a></object>";
 624
 625         // .wav
 626         preg_match_all("#\[media[0-9a-z\|]*\](.+[^\s\"]+).wav\[/media\]#i",$text,$media_matches[8],PREG_SET_ORDER);
 627         $media_replace[8] ="<object type=\"audio/x-wav\" data=\"##MEDIA1##.wav\" width=\"##WIDTH##\" height=\"##HEIGHT##\"><param name=\"src\" value=\"##MEDIA1##.wav\"><param name=\"autoplay\" value=\"false\"><param name=\"autoStart\" value=\"0\"><a href=\"##MEDIA1##.wav\">##MEDIA1##.wav</a></object>";
 628
 629         // .ogg
 630         preg_match_all("#\[media[0-9a-z\|]*\](.+[^\s\"]+).ogg\[/media\]#i",$text,$media_matches[9],PREG_SET_ORDER);
 631         $media_replace[9] ="<object type=\"application/ogg\" data=\"##MEDIA1##.ogg\" width=\"##WIDTH##\" height=\"##HEIGHT##\"><param name=\"src\" value=\"##MEDIA1##.ogg\"><a href=\"##MEDIA1##.ogg\">##MEDIA1##.ogg</a></object>";
 632
 633         // .mid
 634         preg_match_all("#\[media[0-9a-z\|]*\](.+[^\s\"]+).mid\[/media\]#i",$text,$media_matches[10],PREG_SET_ORDER);
 635         $media_replace[10] ="<object type=\"application/x-midi\" data=\"##MEDIA1##.mid\" width=\"##WIDTH##\" height=\"##HEIGHT##\"><param name=\"src\" value=\"##MEDIA1##.mid\"><a href=\"##MEDIA1##.mid\">##MEDIA1##.mid</a></object>";
 636
 637         $text = preg_replace("#\[media[0-9a-z\|]*\](.+[^\s\"]+).mid\[/media\]#i", "<object type=\"application/x-midi\" data=\"\\1.mid\" width=\"".$width."\" height=\"".$height."\"><param name=\"src\" value=\"\\1.mid\"><a href=\"\\1.mid\">\\1.mid</a></object>", $text);
 638
 639         // Executing the replace
 640         for ($i=1;$i<=count($media_replace);$i++){
 641                 foreach($media_matches[$i] as $media)
 642                 {
 643
 644                         //find width and height for each matched media
 645                         if (preg_match("/\[media\|([0-9]*)\|([0-9]*)\]*/", $media[0], $matches))
 646                         {
 647                                 $width = $matches[1];
 648                                 $height = $matches[2];
 649                         }
 650                         else
 651                         {
 652                                 $width = 425;
 653                                 $height = 350;
 654                         }
 655
 656                         //replace media tags with embedded media for each media tag
 657                         $media_input = $media_replace[$i];
 658                         $media_input = str_replace("##WIDTH##","$width",$media_input);
 659                         $media_input = str_replace("##HEIGHT##","$height",$media_input);
 660                         $media_input = str_replace("##MEDIA1##","$media[1]",$media_input);
 661                         $media_input = str_replace("##MEDIA2##","$media[2]",$media_input);
 662                         $text = str_replace($media[0],$media_input,$text);
 663                 }
 664         }
 665
 666         return $text;
 667 }
 668
 669 function make_clickable($text) {
 670         $text = embed_media($text);
 671
 672         $text = preg_replace("/([\s])(http[s]?):\/\/([\^\s\<]*)([a-zA-Z0-9\#\?\/\&\=])/i",
 673                              "\\1<a href=\"\\2://\\3\\4\">\\3\\4</a>", $text);
 674
 675         $text = preg_replace('/([_a-zA-Z0-9\-]+(\.[_a-zA-Z0-9\-]+)*'.
 676                                                 '\@'.'[_a-zA-Z0-9\-]+(\.[_a-zA-Z0-9\-]+)*'.'(\.[a-zA-Z]{1,6})+)/i',
 677                                                 "<a href=\"mailto:\\1\">\\1</a>",
 678                                                 $text);
 679
 680         return $text;
 681 }
 682
 683 function image_replace($text) {
 684         /* image urls do not require http:// */
 685
 686         $text = preg_replace("/\[image(\|)?([a-zA-Z0-9\s]*)\]".
 687                              "[\s]*".
 688                              "([a-zA-Z0-9\#\?\/\&\=\:\\\"\'\_\.\-]+)[\s]*".
 689                              "((\[\/image\])|(.*\[\/image\]))/i",
 690                                   "<img src=\"\\3\" alt=\"\\2\" />",
 691                                   $text);
 692
 693         return $text;
 694 }
 695
 696 function formAF_final_output($text, $nl2br = true) {
 697         global $_base_path;
 698
 699         $text = str_replace('CONTENT_DIR/', '', $text);
 700
 701         if ($nl2br) {
 702                 return nl2br(image_replace(make_clickable(myCodes(' '.$text, false))));
 703         }
 704         return image_replace(make_clickable(myCodes(' '.$text, true)));
 705 }
 706
 707 /****************************************************************************************/
 708 /* @See: ./user/search.php & ./index.php */
 709 function highlight($input, $var) {//$input is the string, $var is the text to be highlighted
 710         if ($var != "") {
 711                 $xtemp = "";
 712                 $i=0;
 713                 /*
 714                         The following 'if' statement is a check to ensure that the search term is not part of the tag, '<strong class="highlight">'.  Words within this string are avoided in case a previously highlighted string is used for the haystack, $input.  To avoid any html breaks in the highlighted string, the search word is avoided completely.
 715                 */
 716                 if (strpos('<strong class="highlight">', $var) !== false) {
 717                         return $input;
 718                 }
 719                 while($i<strlen($input)){
 720                         if((($i + strlen($var)) <= strlen($input)) && (strcasecmp($var, substr($input, $i, strlen($var))) == 0)) {
 721                                 $xtemp .= '<strong class="highlight">' . substr($input, $i , strlen($var)) . '</strong>';
 722                                 $i += strlen($var);
 723                         }
 724                         else {
 725                                 $xtemp .= $input{$i};
 726                                 $i++;
 727                         }
 728                 }
 729                 $input = $xtemp;
 730         }
 731         return $input;
 732 }
 733
 734
 735 /* @See: ./index.php */
 736 function formAF_content($input, $html = 0, $glossary, $simple = false) {
 737         global $_base_path, $_config_defaults;
 738
 739         if (!$html) {
 740                 $input = str_replace('<', '&lt;', $input);
 741                 $input = str_replace('&lt;?php', '<?php', $input); // for bug #2087
 742         }
 743
 744         /* do the glossary search and replace: */
 745         if (is_array($glossary)) {
 746                 foreach ($glossary as $k => $v) {
 747                         $k = urldecode($k);
 748                         $v = str_replace("\n", '<br />', $v);
 749                         $v = str_replace("\r", '', $v);
 750
 751                         /* escape special characters */
 752                         $k = preg_quote($k);
 753
 754                         $k = str_replace('&lt;', '<', $k);
 755                         $k = str_replace('/', '\/', $k);
 756
 757                         $original_term = $k;
 758                         $term = $original_term;
 759
 760                         $term = '(\s*'.$term.'\s*)';
 761                         $term = str_replace(' ','((<br \/>)*\s*)', $term);
 762
 763                         $def = htmlspecialchars($v);
 764                         if ($simple) {
 765                                 $input = preg_replace
 766                                                 ("/(\[\?\])$term(\[\/\?\])/i",
 767                                                 '<a href="'.$simple.'glossary.html#'.urlencode($original_term).'" target="body" class="at-term">\\2</a>',
 768                                                 $input);
 769                         } else {
 770                                 $input = preg_replace
 771                                                 ("/(\[\?\])$term(\[\/\?\])/i",
 772                                                 '\\2<sup><a href="'.$_base_path.'glossary/index.php?g_cid='.$_SESSION['s_cid'].SEP.'w='.urlencode($original_term).'#term" onmouseover="return overlib(\''.$def.'\', CAPTION, \''.addslashes($original_term).'\', AUTOSTATUS);" onmouseout="return nd();" onfocus="return overlib(\''.$def.'\', CAPTION, \''.addslashes($original_term).'\', AUTOSTATUS);" onblur="return nd();"><span style="color: blue; text-decoration: none;font-size:small; font-weight:bolder;">?</span></a></sup>',
 773                                                 $input);
 774                         }
 775                 }
 776         } else if (!$user_glossary) {
 777                 $input = str_replace(array('[?]','[/?]'), '', $input);
 778         }
 779
 780         $input = str_replace('CONTENT_DIR', '', $input);
 781
 782         if (isset($_config_defaults['latex_server']) && $_config_defaults['latex_server']) {
 783                 // see: http://www.forkosh.com/mimetex.html
 784                 $input = preg_replace('/\[tex\](.*?)\[\/tex\]/sie', "'<img src=\"'.\$_config_defaults['latex_server'].rawurlencode('$1').'\" align=\"middle\">'", $input);
 785         }
 786
 787         if ($html) {
 788                 $x = formAF_final_output($input, false);
 789                 return $x;
 790         }
 791
 792         $output = formAF_final_output($input);
 793
 794         $output = '<p>'.$output.'</p>';
 795
 796         return $output;
 797 }
 798
 799 /***********************************************************************
 800         @See /include/Classes/Message/Message.class.php
 801         Jacek Materna
 802 */
 803
 804 /**
 805 * Take a code as input and grab its language specific message. Also cache the resulting
 806 * message. Return the message. Same as get_message but key value in cache is string
 807 * @access  public
 808 * @param   string $codes        Message Code to translate - > 'term' field in DB
 809 * @return  string                       The translated language specific message for code $code
 810 * @author  Jacek Materna
 811 */
 812 function getTranslatedCodeStr($codes) {
 813
 814         /* this is where we want to get the msgs from the database inside a static variable */
 815         global $_cache_msgs_new;
 816         static $_msgs_new;
 817
 818         if (!isset($_msgs_new)) {
 819                 if ( !($lang_et = cache(120, 'msgs_new', $_SESSION['lang'])) ) {
 820                         global $db, $_base_path;
 821
 822                         $parent = Language::getParentCode($_SESSION['lang']);
 823
 824                         /* get $_msgs_new from the DB */
 825                         $sql    = 'SELECT * FROM '.TABLE_PREFIX.'language_text WHERE variable="_msgs" AND (language_code="'.$_SESSION['lang'].'" OR language_code="'.$parent.'")';
 826                         $result = @mysql_query($sql, $db);
 827                         $i = 1;
 828                         while ($row = @mysql_fetch_assoc($result)) {
 829                                 // do not cache key as a digit (no contstant(), use string)
 830                                 $_cache_msgs_new[$row['term']] = str_replace('SITE_URL/', $_base_path, $row['text']);
 831                                 if (AF_DEVEL) {
 832                                         $_cache_msgs_new[$row['term']] .= ' <small><small>('.$row['term'].')</small></small>';
 833                                 }
 834                         }
 835
 836                         cache_variable('_cache_msgs_new');
 837                         endcache(true, false);
 838                 }
 839                 $_msgs_new = $_cache_msgs_new;
 840         }
 841
 842         if (is_array($codes)) {
 843                 /* this is an array with terms to replace */
 844                 $code           = array_shift($codes);
 845
 846                 $message        = $_msgs_new[$code];
 847                 $terms          = $codes;
 848
 849                 /* replace the tokens with the terms */
 850                 $message        = vsprintf($message, $terms);
 851
 852         } else {
 853                 $message = $_msgs_new[$codes];
 854
 855                 if ($message == '') {
 856                         /* the language for this msg is missing: */
 857
 858                         $sql    = 'SELECT * FROM '.TABLE_PREFIX.'language_text WHERE variable="_msgs"';
 859                         $result = @mysql_query($sql, $db);
 860                         $i = 1;
 861                         while ($row = @mysql_fetch_assoc($result)) {
 862                                 if (($row['term']) === $codes) {
 863                                         $message = '['.$row['term'].']';
 864                                         break;
 865                                 }
 866                         }
 867                 }
 868                 $code = $codes;
 869         }
 870         return $message;
 871 }
 872
 873 function html_get_list($array) {
 874         $list = '';
 875         foreach ($array as $value) {
 876                 $list .= '<li>'.$value.'</li>';
 877         }
 878         return $list;
 879 }
 880
 881 /**
 882  * print_paginator
 883  *
 884  * print out list of page links
 885  */
 886 function print_paginator($current_page, $num_rows, $request_args, $rows_per_page = 50, $window = 5) {
 887         $num_pages = ceil($num_rows / $rows_per_page);
 888         $request_args = '?'.$request_args;
 889
 890     if ($num_rows) {
 891                 echo '<div class="paging">';
 892             echo '<ul>';
 893
 894                 $i=max($current_page-$window - max($window-$num_pages+$current_page,0), 1);
 895
 896                 if ($i > 1) {
 897                         echo '<li><a href="'.$_SERVER['PHP_SELF'].$request_args.htmlspecialchars(SEP).'p=1">1</a></li>';
 898                         if ($i > 2) {
 899                         echo '<li>&hellip;</li>';
 900                         }
 901                 }
 902
 903                 for ($i; $i<= min($current_page+$window -min($current_page-$window,0),$num_pages); $i++) {
 904                         if ($current_page == $i) {
 905                                 echo '<li><a href="'.$_SERVER['PHP_SELF'].$request_args.htmlspecialchars(SEP).'p='.$i.'" class="current"><em>'.$current_page.'</em></a></li>';
 906                         } else {
 907                                 echo '<li><a href="'.$_SERVER['PHP_SELF'].$request_args.htmlspecialchars(SEP).'p='.$i.'">'.$i.'</a></li>';
 908                         }
 909                 }
 910         if ($i <= $num_pages) {
 911                         if ($i < $num_pages) {
 912                         echo '<li>&hellip;</li>';
 913                 }
 914                         echo '<li><a href="'.$_SERVER['PHP_SELF'].$request_args.htmlspecialchars(SEP).'p='.$num_pages.'">'.$num_pages.'</a></li>';
 915                 }
 916                 echo '</ul>';
 917                 echo '</div>';
 918         }
 919 }
 920
 921 /**
 922 * apply_timezone
 923 * converts a unix timestamp into another UNIX timestamp with timezone offset added up.
 924 * Adds the user's timezone offset, then converts back to a MYSQL timestamp
 925 * Available both as a system config option, and a user preference, if both are set
 926 * they are added together
 927 * @param   date  MYSQL timestamp.
 928 * @return  date  MYSQL timestamp plus user's and/or system's timezone offset.
 929 * @author  Greg Gay  .
 930 */
 931 function apply_timezone($timestamp){
 932         global $_config;
 933
 934         if($_config['time_zone']){
 935                 $timestamp = ($timestamp + ($_config['time_zone']*3600));
 936         }
 937
 938         if(isset($_SESSION['prefs']['PREF_TIMEZONE'])){
 939                 $timestamp = ($timestamp + ($_SESSION['prefs']['PREF_TIMEZONE']*3600));
 940         }
 941
 942         return $timestamp;
 943 }
 944 ?>