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| 1 | <?php
|
|---|---|
| 2 | /**
|
| 3 | * |
| 4 | * @package phpBB3 |
| 5 | * @version $Id: functions_template.php 11117 2011-04-23 20:00:09Z git-gate $ |
| 6 | * @copyright (c) 2005 phpBB Group, sections (c) 2001 ispi of Lincoln Inc |
| 7 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License |
| 8 | * |
| 9 | */ |
| 10 | |
| 11 | /**
|
| 12 | * @ignore |
| 13 | */ |
| 14 | if (!defined('IN_PHPBB')) |
| 15 | {
|
| 16 | exit;
|
| 17 | } |
| 18 | |
| 19 | /**
|
| 20 | * Extension of template class - Functions needed for compiling templates only. |
| 21 | * |
| 22 | * psoTFX, phpBB Development Team - Completion of file caching, decompilation |
| 23 | * routines and implementation of conditionals/keywords and associated changes |
| 24 | * |
| 25 | * The interface was inspired by PHPLib templates, and the template file (formats are |
| 26 | * quite similar) |
| 27 | * |
| 28 | * The keyword/conditional implementation is currently based on sections of code from |
| 29 | * the Smarty templating engine (c) 2001 ispi of Lincoln, Inc. which is released |
| 30 | * (on its own and in whole) under the LGPL. Section 3 of the LGPL states that any code |
| 31 | * derived from an LGPL application may be relicenced under the GPL, this applies |
| 32 | * to this source |
| 33 | * |
| 34 | * DEFINE directive inspired by a request by Cyberalien |
| 35 | * |
| 36 | * @package phpBB3 |
| 37 | */ |
| 38 | class template_compile |
| 39 | {
|
| 40 | var $template; |
| 41 | |
| 42 | // Various storage arrays
|
| 43 | var $block_names = array(); |
| 44 | var $block_else_level = array(); |
| 45 | |
| 46 | /**
|
| 47 | * constuctor |
| 48 | */ |
| 49 | function template_compile(&$template) |
| 50 | {
|
| 51 | $this->template = &$template; |
| 52 | } |
| 53 | |
| 54 | /**
|
| 55 | * Load template source from file |
| 56 | * @access private |
| 57 | */ |
| 58 | function _tpl_load_file($handle, $store_in_db = false) |
| 59 | {
|
| 60 | // Try and open template for read
|
| 61 | if (!file_exists($this->template->files[$handle])) |
| 62 | {
|
| 63 | trigger_error("template->_tpl_load_file(): File {$this->template->files[$handle]} does not exist or is empty", E_USER_ERROR); |
| 64 | } |
| 65 | |
| 66 | $this->template->compiled_code[$handle] = $this->compile(trim(@file_get_contents($this->template->files[$handle]))); |
| 67 | |
| 68 | // Actually compile the code now.
|
| 69 | $this->compile_write($handle, $this->template->compiled_code[$handle]); |
| 70 | |
| 71 | // Store in database if required...
|
| 72 | if ($store_in_db) |
| 73 | {
|
| 74 | global $db, $user; |
| 75 | |
| 76 | $sql_ary = array( |
| 77 | 'template_id' => $this->template->files_template[$handle], |
| 78 | 'template_filename' => $this->template->filename[$handle], |
| 79 | 'template_included' => '', |
| 80 | 'template_mtime' => time(), |
| 81 | 'template_data' => trim(@file_get_contents($this->template->files[$handle])), |
| 82 | ); |
| 83 | |
| 84 | $sql = 'INSERT INTO ' . STYLES_TEMPLATE_DATA_TABLE . ' ' . $db->sql_build_array('INSERT', $sql_ary); |
| 85 | $db->sql_query($sql); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | /**
|
| 90 | * Remove any PHP tags that do not belong, these regular expressions are derived from |
| 91 | * the ones that exist in zend_language_scanner.l |
| 92 | * @access private |
| 93 | */ |
| 94 | function remove_php_tags(&$code) |
| 95 | {
|
| 96 | // This matches the information gathered from the internal PHP lexer
|
| 97 | $match = array( |
| 98 | '#<([\?%])=?.*?\1>#s',
|
| 99 | '#<script\s+language\s*=\s*(["\']?)php\1\s*>.*?</script\s*>#s',
|
| 100 | '#<\?php(?:\r\n?|[ \n\t]).*?\?>#s'
|
| 101 | ); |
| 102 | |
| 103 | $code = preg_replace($match, '', $code); |
| 104 | } |
| 105 | |
| 106 | /**
|
| 107 | * The all seeing all doing compile method. Parts are inspired by or directly from Smarty |
| 108 | * @access private |
| 109 | */ |
| 110 | function compile($code, $no_echo = false, $echo_var = '') |
| 111 | {
|
| 112 | global $config; |
| 113 | |
| 114 | if ($echo_var) |
| 115 | {
|
| 116 | global $$echo_var; |
| 117 | } |
| 118 | |
| 119 | // Remove any "loose" php ... we want to give admins the ability
|
| 120 | // to switch on/off PHP for a given template. Allowing unchecked
|
| 121 | // php is a no-no. There is a potential issue here in that non-php
|
| 122 | // content may be removed ... however designers should use entities
|
| 123 | // if they wish to display < and >
|
| 124 | $this->remove_php_tags($code); |
| 125 | |
| 126 | // Pull out all block/statement level elements and separate plain text
|
| 127 | preg_match_all('#<!-- PHP -->(.*?)<!-- ENDPHP -->#s', $code, $matches); |
| 128 | $php_blocks = $matches[1]; |
| 129 | $code = preg_replace('#<!-- PHP -->.*?<!-- ENDPHP -->#s', '<!-- PHP -->', $code); |
| 130 | |
| 131 | preg_match_all('#<!-- INCLUDE (\{\$?[A-Z0-9\-_]+\}|[a-zA-Z0-9\_\-\+\./]+) -->#', $code, $matches); |
| 132 | $include_blocks = $matches[1]; |
| 133 | $code = preg_replace('#<!-- INCLUDE (?:\{\$?[A-Z0-9\-_]+\}|[a-zA-Z0-9\_\-\+\./]+) -->#', '<!-- INCLUDE -->', $code); |
| 134 | |
| 135 | preg_match_all('#<!-- INCLUDEPHP ([a-zA-Z0-9\_\-\+\./]+) -->#', $code, $matches); |
| 136 | $includephp_blocks = $matches[1]; |
| 137 | $code = preg_replace('#<!-- INCLUDEPHP [a-zA-Z0-9\_\-\+\./]+ -->#', '<!-- INCLUDEPHP -->', $code); |
| 138 | |
| 139 | preg_match_all('#<!-- ([^<].*?) (.*?)? ?-->#', $code, $blocks, PREG_SET_ORDER); |
| 140 | |
| 141 | $text_blocks = preg_split('#<!-- [^<].*? (?:.*?)? ?-->#', $code); |
| 142 | |
| 143 | for ($i = 0, $j = sizeof($text_blocks); $i < $j; $i++) |
| 144 | {
|
| 145 | $this->compile_var_tags($text_blocks[$i]); |
| 146 | } |
| 147 | $compile_blocks = array(); |
| 148 | |
| 149 | for ($curr_tb = 0, $tb_size = sizeof($blocks); $curr_tb < $tb_size; $curr_tb++) |
| 150 | {
|
| 151 | $block_val = &$blocks[$curr_tb]; |
| 152 | |
| 153 | switch ($block_val[1]) |
| 154 | {
|
| 155 | case 'BEGIN': |
| 156 | $this->block_else_level[] = false; |
| 157 | $compile_blocks[] = '<?php ' . $this->compile_tag_block($block_val[2]) . ' ?>'; |
| 158 | break;
|
| 159 | |
| 160 | case 'BEGINELSE': |
| 161 | $this->block_else_level[sizeof($this->block_else_level) - 1] = true; |
| 162 | $compile_blocks[] = '<?php }} else { ?>'; |
| 163 | break;
|
| 164 | |
| 165 | case 'END': |
| 166 | array_pop($this->block_names); |
| 167 | $compile_blocks[] = '<?php ' . ((array_pop($this->block_else_level)) ? '}' : '}}') . ' ?>'; |
| 168 | break;
|
| 169 | |
| 170 | case 'IF': |
| 171 | $compile_blocks[] = '<?php ' . $this->compile_tag_if($block_val[2], false) . ' ?>'; |
| 172 | break;
|
| 173 | |
| 174 | case 'ELSE': |
| 175 | $compile_blocks[] = '<?php } else { ?>'; |
| 176 | break;
|
| 177 | |
| 178 | case 'ELSEIF': |
| 179 | $compile_blocks[] = '<?php ' . $this->compile_tag_if($block_val[2], true) . ' ?>'; |
| 180 | break;
|
| 181 | |
| 182 | case 'ENDIF': |
| 183 | $compile_blocks[] = '<?php } ?>'; |
| 184 | break;
|
| 185 | |
| 186 | case 'DEFINE': |
| 187 | $compile_blocks[] = '<?php ' . $this->compile_tag_define($block_val[2], true) . ' ?>'; |
| 188 | break;
|
| 189 | |
| 190 | case 'UNDEFINE': |
| 191 | $compile_blocks[] = '<?php ' . $this->compile_tag_define($block_val[2], false) . ' ?>'; |
| 192 | break;
|
| 193 | |
| 194 | case 'INCLUDE': |
| 195 | $temp = array_shift($include_blocks); |
| 196 | |
| 197 | // Dynamic includes
|
| 198 | // Cheap match rather than a full blown regexp, we already know
|
| 199 | // the format of the input so just use string manipulation.
|
| 200 | if ($temp[0] == '{') |
| 201 | {
|
| 202 | $file = false; |
| 203 | |
| 204 | if ($temp[1] == '$') |
| 205 | {
|
| 206 | $var = substr($temp, 2, -1); |
| 207 | //$file = $this->template->_tpldata['DEFINE']['.'][$var];
|
| 208 | $temp = "\$this->_tpldata['DEFINE']['.']['$var']"; |
| 209 | } |
| 210 | else
|
| 211 | {
|
| 212 | $var = substr($temp, 1, -1); |
| 213 | //$file = $this->template->_rootref[$var];
|
| 214 | $temp = "\$this->_rootref['$var']"; |
| 215 | } |
| 216 | } |
| 217 | else
|
| 218 | {
|
| 219 | $file = $temp; |
| 220 | } |
| 221 | |
| 222 | $compile_blocks[] = '<?php ' . $this->compile_tag_include($temp) . ' ?>'; |
| 223 | |
| 224 | // No point in checking variable includes
|
| 225 | if ($file) |
| 226 | {
|
| 227 | $this->template->_tpl_include($file, false); |
| 228 | } |
| 229 | break;
|
| 230 | |
| 231 | case 'INCLUDEPHP': |
| 232 | $compile_blocks[] = ($config['tpl_allow_php']) ? '<?php ' . $this->compile_tag_include_php(array_shift($includephp_blocks)) . ' ?>' : ''; |
| 233 | break;
|
| 234 | |
| 235 | case 'PHP': |
| 236 | $compile_blocks[] = ($config['tpl_allow_php']) ? '<?php ' . array_shift($php_blocks) . ' ?>' : ''; |
| 237 | break;
|
| 238 | |
| 239 | default:
|
| 240 | $this->compile_var_tags($block_val[0]); |
| 241 | $trim_check = trim($block_val[0]); |
| 242 | $compile_blocks[] = (!$no_echo) ? ((!empty($trim_check)) ? $block_val[0] : '') : ((!empty($trim_check)) ? $block_val[0] : ''); |
| 243 | break;
|
| 244 | } |
| 245 | } |
| 246 | |
| 247 | $template_php = ''; |
| 248 | for ($i = 0, $size = sizeof($text_blocks); $i < $size; $i++) |
| 249 | {
|
| 250 | $trim_check_text = trim($text_blocks[$i]); |
| 251 | $template_php .= (!$no_echo) ? (($trim_check_text != '') ? $text_blocks[$i] : '') . ((isset($compile_blocks[$i])) ? $compile_blocks[$i] : '') : (($trim_check_text != '') ? $text_blocks[$i] : '') . ((isset($compile_blocks[$i])) ? $compile_blocks[$i] : ''); |
| 252 | } |
| 253 | |
| 254 | // Remove unused opening/closing tags
|
| 255 | $template_php = str_replace(' ?><?php ', ' ', $template_php); |
| 256 | |
| 257 | // Now add a newline after each php closing tag which already has a newline
|
| 258 | // PHP itself strips a newline if a closing tag is used (this is documented behaviour) and it is mostly not intended by style authors to remove newlines
|
| 259 | $template_php = preg_replace('#\?\>([\r\n])#', '?>\1\1', $template_php); |
| 260 | |
| 261 | // There will be a number of occasions where we switch into and out of
|
| 262 | // PHP mode instantaneously. Rather than "burden" the parser with this
|
| 263 | // we'll strip out such occurences, minimising such switching
|
| 264 | if ($no_echo) |
| 265 | {
|
| 266 | return "\$$echo_var .= '" . $template_php . "'"; |
| 267 | } |
| 268 | |
| 269 | return $template_php; |
| 270 | } |
| 271 | |
| 272 | /**
|
| 273 | * Compile variables |
| 274 | * @access private |
| 275 | */ |
| 276 | function compile_var_tags(&$text_blocks) |
| 277 | {
|
| 278 | // change template varrefs into PHP varrefs
|
| 279 | $varrefs = array(); |
| 280 | |
| 281 | // This one will handle varrefs WITH namespaces
|
| 282 | preg_match_all('#\{((?:[a-z0-9\-_]+\.)+)(\$)?([A-Z0-9\-_]+)\}#', $text_blocks, $varrefs, PREG_SET_ORDER); |
| 283 | |
| 284 | foreach ($varrefs as $var_val) |
| 285 | {
|
| 286 | $namespace = $var_val[1]; |
| 287 | $varname = $var_val[3]; |
| 288 | $new = $this->generate_block_varref($namespace, $varname, true, $var_val[2]); |
| 289 | |
| 290 | $text_blocks = str_replace($var_val[0], $new, $text_blocks); |
| 291 | } |
| 292 | |
| 293 | // This will handle the remaining root-level varrefs
|
| 294 | // transform vars prefixed by L_ into their language variable pendant if nothing is set within the tpldata array
|
| 295 | if (strpos($text_blocks, '{L_') !== false) |
| 296 | {
|
| 297 | $text_blocks = preg_replace('#\{L_([A-Z0-9\-_]+)\}#', "<?php echo ((isset(\$this->_rootref['L_\\1'])) ? \$this->_rootref['L_\\1'] : ((isset(\$user->lang['\\1'])) ? \$user->lang['\\1'] : '{ \\1 }')); ?>", $text_blocks); |
| 298 | } |
| 299 | |
| 300 | // Handle addslashed language variables prefixed with LA_
|
| 301 | // If a template variable already exist, it will be used in favor of it...
|
| 302 | if (strpos($text_blocks, '{LA_') !== false) |
| 303 | {
|
| 304 | $text_blocks = preg_replace('#\{LA_([A-Z0-9\-_]+)\}#', "<?php echo ((isset(\$this->_rootref['LA_\\1'])) ? \$this->_rootref['LA_\\1'] : ((isset(\$this->_rootref['L_\\1'])) ? addslashes(\$this->_rootref['L_\\1']) : ((isset(\$user->lang['\\1'])) ? addslashes(\$user->lang['\\1']) : '{ \\1 }'))); ?>", $text_blocks); |
| 305 | } |
| 306 | |
| 307 | // Handle remaining varrefs
|
| 308 | $text_blocks = preg_replace('#\{([A-Z0-9\-_]+)\}#', "<?php echo (isset(\$this->_rootref['\\1'])) ? \$this->_rootref['\\1'] : ''; ?>", $text_blocks); |
| 309 | $text_blocks = preg_replace('#\{\$([A-Z0-9\-_]+)\}#', "<?php echo (isset(\$this->_tpldata['DEFINE']['.']['\\1'])) ? \$this->_tpldata['DEFINE']['.']['\\1'] : ''; ?>", $text_blocks); |
| 310 | |
| 311 | return;
|
| 312 | } |
| 313 | |
| 314 | /**
|
| 315 | * Compile blocks |
| 316 | * @access private |
| 317 | */ |
| 318 | function compile_tag_block($tag_args) |
| 319 | {
|
| 320 | $no_nesting = false; |
| 321 | |
| 322 | // Is the designer wanting to call another loop in a loop?
|
| 323 | if (strpos($tag_args, '!') === 0) |
| 324 | {
|
| 325 | // Count the number of ! occurrences (not allowed in vars)
|
| 326 | $no_nesting = substr_count($tag_args, '!'); |
| 327 | $tag_args = substr($tag_args, $no_nesting); |
| 328 | } |
| 329 | |
| 330 | // Allow for control of looping (indexes start from zero):
|
| 331 | // foo(2) : Will start the loop on the 3rd entry
|
| 332 | // foo(-2) : Will start the loop two entries from the end
|
| 333 | // foo(3,4) : Will start the loop on the fourth entry and end it on the fifth
|
| 334 | // foo(3,-4) : Will start the loop on the fourth entry and end it four from last
|
| 335 | if (preg_match('#^([^()]*)\(([\-\d]+)(?:,([\-\d]+))?\)$#', $tag_args, $match)) |
| 336 | {
|
| 337 | $tag_args = $match[1]; |
| 338 | |
| 339 | if ($match[2] < 0) |
| 340 | {
|
| 341 | $loop_start = '($_' . $tag_args . '_count ' . $match[2] . ' < 0 ? 0 : $_' . $tag_args . '_count ' . $match[2] . ')'; |
| 342 | } |
| 343 | else
|
| 344 | {
|
| 345 | $loop_start = '($_' . $tag_args . '_count < ' . $match[2] . ' ? $_' . $tag_args . '_count : ' . $match[2] . ')'; |
| 346 | } |
| 347 | |
| 348 | if (strlen($match[3]) < 1 || $match[3] == -1) |
| 349 | {
|
| 350 | $loop_end = '$_' . $tag_args . '_count'; |
| 351 | } |
| 352 | else if ($match[3] >= 0) |
| 353 | {
|
| 354 | $loop_end = '(' . ($match[3] + 1) . ' > $_' . $tag_args . '_count ? $_' . $tag_args . '_count : ' . ($match[3] + 1) . ')'; |
| 355 | } |
| 356 | else //if ($match[3] < -1) |
| 357 | {
|
| 358 | $loop_end = '$_' . $tag_args . '_count' . ($match[3] + 1); |
| 359 | } |
| 360 | } |
| 361 | else
|
| 362 | {
|
| 363 | $loop_start = 0; |
| 364 | $loop_end = '$_' . $tag_args . '_count'; |
| 365 | } |
| 366 | |
| 367 | $tag_template_php = ''; |
| 368 | array_push($this->block_names, $tag_args); |
| 369 | |
| 370 | if ($no_nesting !== false) |
| 371 | {
|
| 372 | // We need to implode $no_nesting times from the end...
|
| 373 | $block = array_slice($this->block_names, -$no_nesting); |
| 374 | } |
| 375 | else
|
| 376 | {
|
| 377 | $block = $this->block_names; |
| 378 | } |
| 379 | |
| 380 | if (sizeof($block) < 2) |
| 381 | {
|
| 382 | // Block is not nested.
|
| 383 | $tag_template_php = '$_' . $tag_args . "_count = (isset(\$this->_tpldata['$tag_args'])) ? sizeof(\$this->_tpldata['$tag_args']) : 0;"; |
| 384 | $varref = "\$this->_tpldata['$tag_args']"; |
| 385 | } |
| 386 | else
|
| 387 | {
|
| 388 | // This block is nested.
|
| 389 | // Generate a namespace string for this block.
|
| 390 | $namespace = implode('.', $block); |
| 391 | |
| 392 | // Get a reference to the data array for this block that depends on the
|
| 393 | // current indices of all parent blocks.
|
| 394 | $varref = $this->generate_block_data_ref($namespace, false); |
| 395 | |
| 396 | // Create the for loop code to iterate over this block.
|
| 397 | $tag_template_php = '$_' . $tag_args . '_count = (isset(' . $varref . ')) ? sizeof(' . $varref . ') : 0;'; |
| 398 | } |
| 399 | |
| 400 | $tag_template_php .= 'if ($_' . $tag_args . '_count) {'; |
| 401 | |
| 402 | /**
|
| 403 | * The following uses foreach for iteration instead of a for loop, foreach is faster but requires PHP to make a copy of the contents of the array which uses more memory |
| 404 | * <code> |
| 405 | * if (!$offset) |
| 406 | * {
|
| 407 | * $tag_template_php .= 'foreach (' . $varref . ' as $_' . $tag_args . '_i => $_' . $tag_args . '_val){';
|
| 408 | * } |
| 409 | * </code> |
| 410 | */ |
| 411 | |
| 412 | $tag_template_php .= 'for ($_' . $tag_args . '_i = ' . $loop_start . '; $_' . $tag_args . '_i < ' . $loop_end . '; ++$_' . $tag_args . '_i){'; |
| 413 | $tag_template_php .= '$_'. $tag_args . '_val = &' . $varref . '[$_'. $tag_args. '_i];'; |
| 414 | |
| 415 | return $tag_template_php; |
| 416 | } |
| 417 | |
| 418 | /**
|
| 419 | * Compile IF tags - much of this is from Smarty with |
| 420 | * some adaptions for our block level methods |
| 421 | * @access private |
| 422 | */ |
| 423 | function compile_tag_if($tag_args, $elseif) |
| 424 | {
|
| 425 | // Tokenize args for 'if' tag.
|
| 426 | preg_match_all('/(?: |
| 427 | "[^"\\\\]*(?:\\\\.[^"\\\\]*)*" | |
| 428 | \'[^\'\\\\]*(?:\\\\.[^\'\\\\]*)*\' | |
| 429 | [(),] | |
| 430 | [^\s(),]+)/x', $tag_args, $match); |
| 431 | |
| 432 | $tokens = $match[0]; |
| 433 | $is_arg_stack = array(); |
| 434 | |
| 435 | for ($i = 0, $size = sizeof($tokens); $i < $size; $i++) |
| 436 | {
|
| 437 | $token = &$tokens[$i]; |
| 438 | |
| 439 | switch ($token) |
| 440 | {
|
| 441 | case '!==': |
| 442 | case '===': |
| 443 | case '<<': |
| 444 | case '>>': |
| 445 | case '|': |
| 446 | case '^': |
| 447 | case '&': |
| 448 | case '~': |
| 449 | case ')': |
| 450 | case ',': |
| 451 | case '+': |
| 452 | case '-': |
| 453 | case '*': |
| 454 | case '/': |
| 455 | case '@': |
| 456 | break;
|
| 457 | |
| 458 | case '==': |
| 459 | case 'eq': |
| 460 | $token = '=='; |
| 461 | break;
|
| 462 | |
| 463 | case '!=': |
| 464 | case '<>': |
| 465 | case 'ne': |
| 466 | case 'neq': |
| 467 | $token = '!='; |
| 468 | break;
|
| 469 | |
| 470 | case '<': |
| 471 | case 'lt': |
| 472 | $token = '<'; |
| 473 | break;
|
| 474 | |
| 475 | case '<=': |
| 476 | case 'le': |
| 477 | case 'lte': |
| 478 | $token = '<='; |
| 479 | break;
|
| 480 | |
| 481 | case '>': |
| 482 | case 'gt': |
| 483 | $token = '>'; |
| 484 | break;
|
| 485 | |
| 486 | case '>=': |
| 487 | case 'ge': |
| 488 | case 'gte': |
| 489 | $token = '>='; |
| 490 | break;
|
| 491 | |
| 492 | case '&&': |
| 493 | case 'and': |
| 494 | $token = '&&'; |
| 495 | break;
|
| 496 | |
| 497 | case '||': |
| 498 | case 'or': |
| 499 | $token = '||'; |
| 500 | break;
|
| 501 | |
| 502 | case '!': |
| 503 | case 'not': |
| 504 | $token = '!'; |
| 505 | break;
|
| 506 | |
| 507 | case '%': |
| 508 | case 'mod': |
| 509 | $token = '%'; |
| 510 | break;
|
| 511 | |
| 512 | case '(': |
| 513 | array_push($is_arg_stack, $i); |
| 514 | break;
|
| 515 | |
| 516 | case 'is': |
| 517 | $is_arg_start = ($tokens[$i-1] == ')') ? array_pop($is_arg_stack) : $i-1; |
| 518 | $is_arg = implode(' ', array_slice($tokens, $is_arg_start, $i - $is_arg_start)); |
| 519 | |
| 520 | $new_tokens = $this->_parse_is_expr($is_arg, array_slice($tokens, $i+1)); |
| 521 | |
| 522 | array_splice($tokens, $is_arg_start, sizeof($tokens), $new_tokens); |
| 523 | |
| 524 | $i = $is_arg_start; |
| 525 | |
| 526 | // no break
|
| 527 | |
| 528 | default:
|
| 529 | if (preg_match('#^((?:[a-z0-9\-_]+\.)+)?(\$)?(?=[A-Z])([A-Z0-9\-_]+)#s', $token, $varrefs)) |
| 530 | {
|
| 531 | $token = (!empty($varrefs[1])) ? $this->generate_block_data_ref(substr($varrefs[1], 0, -1), true, $varrefs[2]) . '[\'' . $varrefs[3] . '\']' : (($varrefs[2]) ? '$this->_tpldata[\'DEFINE\'][\'.\'][\'' . $varrefs[3] . '\']' : '$this->_rootref[\'' . $varrefs[3] . '\']'); |
| 532 | } |
| 533 | else if (preg_match('#^\.((?:[a-z0-9\-_]+\.?)+)$#s', $token, $varrefs)) |
| 534 | {
|
| 535 | // Allow checking if loops are set with .loopname
|
| 536 | // It is also possible to check the loop count by doing <!-- IF .loopname > 1 --> for example
|
| 537 | $blocks = explode('.', $varrefs[1]); |
| 538 | |
| 539 | // If the block is nested, we have a reference that we can grab.
|
| 540 | // If the block is not nested, we just go and grab the block from _tpldata
|
| 541 | if (sizeof($blocks) > 1) |
| 542 | {
|
| 543 | $block = array_pop($blocks); |
| 544 | $namespace = implode('.', $blocks); |
| 545 | $varref = $this->generate_block_data_ref($namespace, true); |
| 546 | |
| 547 | // Add the block reference for the last child.
|
| 548 | $varref .= "['" . $block . "']"; |
| 549 | } |
| 550 | else
|
| 551 | {
|
| 552 | $varref = '$this->_tpldata'; |
| 553 | |
| 554 | // Add the block reference for the last child.
|
| 555 | $varref .= "['" . $blocks[0] . "']"; |
| 556 | } |
| 557 | $token = "sizeof($varref)"; |
| 558 | } |
| 559 | else if (!empty($token)) |
| 560 | {
|
| 561 | $token = '(' . $token . ')'; |
| 562 | } |
| 563 | |
| 564 | break;
|
| 565 | } |
| 566 | } |
| 567 | |
| 568 | // If there are no valid tokens left or only control/compare characters left, we do skip this statement
|
| 569 | if (!sizeof($tokens) || str_replace(array(' ', '=', '!', '<', '>', '&', '|', '%', '(', ')'), '', implode('', $tokens)) == '') |
| 570 | {
|
| 571 | $tokens = array('false'); |
| 572 | } |
| 573 | return (($elseif) ? '} else if (' : 'if (') . (implode(' ', $tokens) . ') { '); |
| 574 | } |
| 575 | |
| 576 | /**
|
| 577 | * Compile DEFINE tags |
| 578 | * @access private |
| 579 | */ |
| 580 | function compile_tag_define($tag_args, $op) |
| 581 | {
|
| 582 | preg_match('#^((?:[a-z0-9\-_]+\.)+)?\$(?=[A-Z])([A-Z0-9_\-]*)(?: = (\'?)([^\']*)(\'?))?$#', $tag_args, $match); |
| 583 | |
| 584 | if (empty($match[2]) || (!isset($match[4]) && $op)) |
| 585 | {
|
| 586 | return ''; |
| 587 | } |
| 588 | |
| 589 | if (!$op) |
| 590 | {
|
| 591 | return 'unset(' . (($match[1]) ? $this->generate_block_data_ref(substr($match[1], 0, -1), true, true) . '[\'' . $match[2] . '\']' : '$this->_tpldata[\'DEFINE\'][\'.\'][\'' . $match[2] . '\']') . ');'; |
| 592 | } |
| 593 | |
| 594 | // Are we a string?
|
| 595 | if ($match[3] && $match[5]) |
| 596 | {
|
| 597 | $match[4] = str_replace(array('\\\'', '\\\\', '\''), array('\'', '\\', '\\\''), $match[4]); |
| 598 | |
| 599 | // Compile reference, we allow template variables in defines...
|
| 600 | $match[4] = $this->compile($match[4]); |
| 601 | |
| 602 | // Now replace the php code
|
| 603 | $match[4] = "'" . str_replace(array('<?php echo ', '; ?>'), array("' . ", " . '"), $match[4]) . "'"; |
| 604 | } |
| 605 | else
|
| 606 | {
|
| 607 | preg_match('#true|false|\.#i', $match[4], $type); |
| 608 | |
| 609 | switch (strtolower($type[0])) |
| 610 | {
|
| 611 | case 'true': |
| 612 | case 'false': |
| 613 | $match[4] = strtoupper($match[4]); |
| 614 | break;
|
| 615 | |
| 616 | case '.': |
| 617 | $match[4] = doubleval($match[4]); |
| 618 | break;
|
| 619 | |
| 620 | default:
|
| 621 | $match[4] = intval($match[4]); |
| 622 | break;
|
| 623 | } |
| 624 | } |
| 625 | |
| 626 | return (($match[1]) ? $this->generate_block_data_ref(substr($match[1], 0, -1), true, true) . '[\'' . $match[2] . '\']' : '$this->_tpldata[\'DEFINE\'][\'.\'][\'' . $match[2] . '\']') . ' = ' . $match[4] . ';'; |
| 627 | } |
| 628 | |
| 629 | /**
|
| 630 | * Compile INCLUDE tag |
| 631 | * @access private |
| 632 | */ |
| 633 | function compile_tag_include($tag_args) |
| 634 | {
|
| 635 | // Process dynamic includes
|
| 636 | if ($tag_args[0] == '$') |
| 637 | {
|
| 638 | return "if (isset($tag_args)) { \$this->_tpl_include($tag_args); }"; |
| 639 | } |
| 640 | |
| 641 | return "\$this->_tpl_include('$tag_args');"; |
| 642 | } |
| 643 | |
| 644 | /**
|
| 645 | * Compile INCLUDE_PHP tag |
| 646 | * @access private |
| 647 | */ |
| 648 | function compile_tag_include_php($tag_args) |
| 649 | {
|
| 650 | return "\$this->_php_include('$tag_args');"; |
| 651 | } |
| 652 | |
| 653 | /**
|
| 654 | * parse expression |
| 655 | * This is from Smarty |
| 656 | * @access private |
| 657 | */ |
| 658 | function _parse_is_expr($is_arg, $tokens) |
| 659 | {
|
| 660 | $expr_end = 0; |
| 661 | $negate_expr = false; |
| 662 | |
| 663 | if (($first_token = array_shift($tokens)) == 'not') |
| 664 | {
|
| 665 | $negate_expr = true; |
| 666 | $expr_type = array_shift($tokens); |
| 667 | } |
| 668 | else
|
| 669 | {
|
| 670 | $expr_type = $first_token; |
| 671 | } |
| 672 | |
| 673 | switch ($expr_type) |
| 674 | {
|
| 675 | case 'even': |
| 676 | if (@$tokens[$expr_end] == 'by') |
| 677 | {
|
| 678 | $expr_end++;
|
| 679 | $expr_arg = $tokens[$expr_end++]; |
| 680 | $expr = "!(($is_arg / $expr_arg) % $expr_arg)"; |
| 681 | } |
| 682 | else
|
| 683 | {
|
| 684 | $expr = "!($is_arg & 1)"; |
| 685 | } |
| 686 | break;
|
| 687 | |
| 688 | case 'odd': |
| 689 | if (@$tokens[$expr_end] == 'by') |
| 690 | {
|
| 691 | $expr_end++;
|
| 692 | $expr_arg = $tokens[$expr_end++]; |
| 693 | $expr = "(($is_arg / $expr_arg) % $expr_arg)"; |
| 694 | } |
| 695 | else
|
| 696 | {
|
| 697 | $expr = "($is_arg & 1)"; |
| 698 | } |
| 699 | break;
|
| 700 | |
| 701 | case 'div': |
| 702 | if (@$tokens[$expr_end] == 'by') |
| 703 | {
|
| 704 | $expr_end++;
|
| 705 | $expr_arg = $tokens[$expr_end++]; |
| 706 | $expr = "!($is_arg % $expr_arg)"; |
| 707 | } |
| 708 | break;
|
| 709 | } |
| 710 | |
| 711 | if ($negate_expr) |
| 712 | {
|
| 713 | $expr = "!($expr)"; |
| 714 | } |
| 715 | |
| 716 | array_splice($tokens, 0, $expr_end, $expr); |
| 717 | |
| 718 | return $tokens; |
| 719 | } |
| 720 | |
| 721 | /**
|
| 722 | * Generates a reference to the given variable inside the given (possibly nested) |
| 723 | * block namespace. This is a string of the form: |
| 724 | * ' . $this->_tpldata['parent'][$_parent_i]['$child1'][$_child1_i]['$child2'][$_child2_i]...['varname'] . ' |
| 725 | * It's ready to be inserted into an "echo" line in one of the templates. |
| 726 | * NOTE: expects a trailing "." on the namespace. |
| 727 | * @access private |
| 728 | */ |
| 729 | function generate_block_varref($namespace, $varname, $echo = true, $defop = false) |
| 730 | {
|
| 731 | // Strip the trailing period.
|
| 732 | $namespace = substr($namespace, 0, -1); |
| 733 | |
| 734 | // Get a reference to the data block for this namespace.
|
| 735 | $varref = $this->generate_block_data_ref($namespace, true, $defop); |
| 736 | // Prepend the necessary code to stick this in an echo line.
|
| 737 | |
| 738 | // Append the variable reference.
|
| 739 | $varref .= "['$varname']"; |
| 740 | $varref = ($echo) ? "<?php echo $varref; ?>" : ((isset($varref)) ? $varref : ''); |
| 741 | |
| 742 | return $varref; |
| 743 | } |
| 744 | |
| 745 | /**
|
| 746 | * Generates a reference to the array of data values for the given |
| 747 | * (possibly nested) block namespace. This is a string of the form: |
| 748 | * $this->_tpldata['parent'][$_parent_i]['$child1'][$_child1_i]['$child2'][$_child2_i]...['$childN'] |
| 749 | * |
| 750 | * If $include_last_iterator is true, then [$_childN_i] will be appended to the form shown above. |
| 751 | * NOTE: does not expect a trailing "." on the blockname. |
| 752 | * @access private |
| 753 | */ |
| 754 | function generate_block_data_ref($blockname, $include_last_iterator, $defop = false) |
| 755 | {
|
| 756 | // Get an array of the blocks involved.
|
| 757 | $blocks = explode('.', $blockname); |
| 758 | $blockcount = sizeof($blocks) - 1; |
| 759 | |
| 760 | // DEFINE is not an element of any referenced variable, we must use _tpldata to access it
|
| 761 | if ($defop) |
| 762 | {
|
| 763 | $varref = '$this->_tpldata[\'DEFINE\']'; |
| 764 | // Build up the string with everything but the last child.
|
| 765 | for ($i = 0; $i < $blockcount; $i++) |
| 766 | {
|
| 767 | $varref .= "['" . $blocks[$i] . "'][\$_" . $blocks[$i] . '_i]'; |
| 768 | } |
| 769 | // Add the block reference for the last child.
|
| 770 | $varref .= "['" . $blocks[$blockcount] . "']"; |
| 771 | // Add the iterator for the last child if requried.
|
| 772 | if ($include_last_iterator) |
| 773 | {
|
| 774 | $varref .= '[$_' . $blocks[$blockcount] . '_i]'; |
| 775 | } |
| 776 | return $varref; |
| 777 | } |
| 778 | else if ($include_last_iterator) |
| 779 | {
|
| 780 | return '$_'. $blocks[$blockcount] . '_val'; |
| 781 | } |
| 782 | else
|
| 783 | {
|
| 784 | return '$_'. $blocks[$blockcount - 1] . '_val[\''. $blocks[$blockcount]. '\']'; |
| 785 | } |
| 786 | } |
| 787 | |
| 788 | /**
|
| 789 | * Write compiled file to cache directory |
| 790 | * @access private |
| 791 | */ |
| 792 | function compile_write($handle, $data) |
| 793 | {
|
| 794 | global $phpEx; |
| 795 | |
| 796 | $filename = $this->template->cachepath . str_replace('/', '.', $this->template->filename[$handle]) . '.' . $phpEx; |
| 797 | |
| 798 | $data = "<?php if (!defined('IN_PHPBB')) exit;" . ((strpos($data, '<?php') === 0) ? substr($data, 5) : ' ?>' . $data); |
| 799 | |
| 800 | if ($fp = @fopen($filename, 'wb')) |
| 801 | {
|
| 802 | @flock($fp, LOCK_EX); |
| 803 | @fwrite ($fp, $data); |
| 804 | @flock($fp, LOCK_UN); |
| 805 | @fclose($fp); |
| 806 | |
| 807 | phpbb_chmod($filename, CHMOD_READ | CHMOD_WRITE); |
| 808 | } |
| 809 | |
| 810 | return;
|
| 811 | } |
| 812 | } |
| 813 | |
| 814 | ?> |