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1 <?php 2 /** 3 * MyBB 1.6 4 * Copyright 2010 MyBB Group, All Rights Reserved 5 * 6 * Website: http://mybb.com 7 * License: http://mybb.com/about/license 8 * 9 * $Id$ 10 */ 11 12 // Set to 1 if recieving a blank page (template failure). 13 define("MANUAL_WARNINGS", 0); 14 15 // Define Custom MyBB error handler constants with a value not used by php's error handler. 16 define("MYBB_SQL", 20); 17 define("MYBB_TEMPLATE", 30); 18 define("MYBB_GENERAL", 40); 19 define("MYBB_NOT_INSTALLED", 41); 20 define("MYBB_NOT_UPGRADED", 42); 21 define("MYBB_INSTALL_DIR_EXISTS", 43); 22 define("MYBB_SQL_LOAD_ERROR", 44); 23 define("MYBB_CACHE_NO_WRITE", 45); 24 define("MYBB_CACHEHANDLER_LOAD_ERROR", 46); 25 26 if(!defined("E_RECOVERABLE_ERROR")) 27 { 28 // This constant has been defined since PHP 5.2. 29 define("E_RECOVERABLE_ERROR", 4096); 30 } 31 32 if(!defined("E_DEPRECATED")) 33 { 34 // This constant has been defined since PHP 5.3. 35 define("E_DEPRECATED", 8192); 36 } 37 38 if(!defined("E_USER_DEPRECATED")) 39 { 40 // This constant has been defined since PHP 5.3. 41 define("E_USER_DEPRECATED", 16384); 42 } 43 44 class errorHandler { 45 46 /** 47 * Array of all of the error types 48 * 49 * @var array 50 */ 51 public $error_types = array( 52 E_ERROR => 'Error', 53 E_WARNING => 'Warning', 54 E_PARSE => 'Parsing Error', 55 E_NOTICE => 'Notice', 56 E_CORE_ERROR => 'Core Error', 57 E_CORE_WARNING => 'Core Warning', 58 E_COMPILE_ERROR => 'Compile Error', 59 E_COMPILE_WARNING => 'Compile Warning', 60 E_DEPRECATED => 'Deprecated Warning', 61 E_USER_ERROR => 'User Error', 62 E_USER_WARNING => 'User Warning', 63 E_USER_NOTICE => 'User Notice', 64 E_USER_DEPRECATED => 'User Deprecated Warning', 65 E_STRICT => 'Runtime Notice', 66 E_RECOVERABLE_ERROR => 'Catchable Fatal Error', 67 MYBB_SQL => 'MyBB SQL Error', 68 MYBB_TEMPLATE => 'MyBB Template Error', 69 MYBB_GENERAL => 'MyBB Error', 70 MYBB_NOT_INSTALLED => 'MyBB Error', 71 MYBB_NOT_UPGRADED => 'MyBB Error', 72 MYBB_INSTALL_DIR_EXISTS => 'MyBB Error', 73 MYBB_SQL_LOAD_ERROR => 'MyBB Error', 74 MYBB_CACHE_NO_WRITE => 'MyBB Error', 75 MYBB_CACHEHANDLER_LOAD_ERROR => 'MyBB Error', 76 ); 77 78 /** 79 * Array of MyBB error types 80 * 81 * @var array 82 */ 83 public $mybb_error_types = array( 84 MYBB_SQL, 85 MYBB_TEMPLATE, 86 MYBB_GENERAL, 87 MYBB_NOT_INSTALLED, 88 MYBB_NOT_UPGRADED, 89 MYBB_INSTALL_DIR_EXISTS, 90 MYBB_SQL_LOAD_ERROR, 91 MYBB_CACHE_NO_WRITE, 92 MYBB_CACHEHANDLER_LOAD_ERROR, 93 ); 94 95 /** 96 * Array of all of the error types to ignore 97 * 98 * @var array 99 */ 100 public $ignore_types = array( 101 E_DEPRECATED, 102 E_NOTICE, 103 E_USER_NOTICE, 104 E_STRICT 105 ); 106 107 /** 108 * String of all the warnings collected 109 * 110 * @var string 111 */ 112 public $warnings = ""; 113 114 /** 115 * Is MyBB in an errornous state? (Have we received an error?) 116 * 117 * @var boolean 118 */ 119 public $has_errors = false; 120 121 /** 122 * Initializes the error handler 123 * 124 */ 125 function __construct() 126 { 127 // Lets set the error handler in here so we can just do $handler = new errorHandler() and be all set up. 128 $error_types = E_ALL; 129 foreach($this->ignore_types as $bit) 130 { 131 $error_types = $error_types & ~$bit; 132 } 133 error_reporting($error_types); 134 set_error_handler(array(&$this, "error"), $error_types); 135 } 136 137 /** 138 * Parses a error for processing. 139 * 140 * @param string The error type (i.e. E_ERROR, E_FATAL) 141 * @param string The error message 142 * @param string The error file 143 * @param integer The error line 144 * @return boolean True if parsing was a success, otherwise assume a error 145 */ 146 function error($type, $message, $file=null, $line=0) 147 { 148 global $mybb; 149 150 // Error reporting turned off (either globally or by @ before erroring statement) 151 if(error_reporting() == 0) 152 { 153 return true; 154 } 155 156 if(in_array($type, $this->ignore_types)) 157 { 158 return true; 159 } 160 161 $file = str_replace(MYBB_ROOT, "", $file); 162 163 $this->has_errors = true; 164 165 // For some reason in the installer this setting is set to "<" 166 $accepted_error_types = array('both', 'error', 'warning', 'none'); 167 if(!in_array($mybb->settings['errortypemedium'], $accepted_error_types)) 168 { 169 $mybb->settings['errortypemedium'] = "both"; 170 } 171 172 if(defined("IN_TASK")) 173 { 174 global $task; 175 176 require_once MYBB_ROOT."inc/functions_task.php"; 177 178 if($file) 179 { 180 $filestr = " - Line: $line - File: $file"; 181 } 182 183 add_task_log($task, "{$this->error_types[$type]} - [$type] ".var_export($message, true)."{$filestr}"); 184 } 185 186 // Saving error to log file. 187 if($mybb->settings['errorlogmedium'] == "log" || $mybb->settings['errorlogmedium'] == "both") 188 { 189 $this->log_error($type, $message, $file, $line); 190 } 191 192 // Are we emailing the Admin a copy? 193 if($mybb->settings['errorlogmedium'] == "mail" || $mybb->settings['errorlogmedium'] == "both") 194 { 195 $this->email_error($type, $message, $file, $line); 196 } 197 198 // SQL Error 199 if($type == MYBB_SQL) 200 { 201 $this->output_error($type, $message, $file, $line); 202 } 203 else 204 { 205 // Do we have a PHP error? 206 if(my_strpos(my_strtolower($this->error_types[$type]), 'warning') === false) 207 { 208 $this->output_error($type, $message, $file, $line); 209 } 210 // PHP Error 211 else 212 { 213 if($mybb->settings['errortypemedium'] == "none" || $mybb->settings['errortypemedium'] == "error") 214 { 215 echo "<div class=\"php_warning\">MyBB Internal: One or more warnings occured. Please contact your administrator for assistance.</div>"; 216 } 217 else 218 { 219 global $templates; 220 221 $warning = "<strong>{$this->error_types[$type]}</strong> [$type] $message - Line: $line - File: $file PHP ".PHP_VERSION." (".PHP_OS.")<br />\n"; 222 if(is_object($templates) && method_exists($templates, "get") && !defined("IN_ADMINCP")) 223 { 224 $this->warnings .= $warning; 225 $this->warnings .= $this->generate_backtrace(); 226 } 227 else 228 { 229 echo "<div class=\"php_warning\">{$warning}".$this->generate_backtrace()."</div>"; 230 } 231 } 232 } 233 } 234 235 return true; 236 } 237 238 /** 239 * Returns all the warnings 240 * 241 * @return string The warnings 242 */ 243 function show_warnings() 244 { 245 global $lang, $templates; 246 247 if(empty($this->warnings)) 248 { 249 return false; 250 } 251 252 // Incase a template fails and we're recieving a blank page. 253 if(MANUAL_WARNINGS) 254 { 255 echo $this->warnings."<br />"; 256 } 257 258 if(!$lang->warnings) 259 { 260 $lang->warnings = "The following warnings occured:"; 261 } 262 263 if(defined("IN_ADMINCP")) 264 { 265 $warning = makeacpphpwarning($this->warnings); 266 } 267 else 268 { 269 $template_exists = false; 270 271 if(!is_object($templates) || !method_exists($templates, 'get')) 272 { 273 if(@file_exists(MYBB_ROOT."inc/class_templates.php")) 274 { 275 @require_once MYBB_ROOT."inc/class_templates.php"; 276 $templates = new templates; 277 $template_exists = true; 278 } 279 } 280 else 281 { 282 $template_exists = true; 283 } 284 285 if($template_exists == true) 286 { 287 eval("\$warning = \"".$templates->get("php_warnings")."\";"); 288 } 289 } 290 291 return $warning; 292 } 293 294 /** 295 * Triggers a user created error 296 * Example: $error_handler->trigger("Some Warning", E_USER_ERROR); 297 * 298 * @param string Message 299 * @param string Type 300 */ 301 function trigger($message="", $type=E_USER_ERROR) 302 { 303 global $lang; 304 305 if(!$message) 306 { 307 $message = $lang->unknown_user_trigger; 308 } 309 310 if(in_array($type, $this->mybb_error_types)) 311 { 312 $this->error($type, $message); 313 } 314 else 315 { 316 trigger_error($message, $type); 317 } 318 } 319 320 /** 321 * Logs the error in the specified error log file. 322 * 323 * @param string Warning type 324 * @param string Warning message 325 * @param string Warning file 326 * @param integer Warning line 327 */ 328 function log_error($type, $message, $file, $line) 329 { 330 global $mybb; 331 332 if($type == MYBB_SQL) 333 { 334 $message = "SQL Error: {$message['error_no']} - {$message['error']}\nQuery: {$message['query']}"; 335 } 336 $error_data = "<error>\n"; 337 $error_data .= "\t<dateline>".TIME_NOW."</dateline>\n"; 338 $error_data .= "\t<script>".$file."</script>\n"; 339 $error_data .= "\t<line>".$line."</line>\n"; 340 $error_data .= "\t<type>".$type."</type>\n"; 341 $error_data .= "\t<friendly_type>".$this->error_types[$type]."</friendly_type>\n"; 342 $error_data .= "\t<message>".$message."</message>\n"; 343 $error_data .= "</error>\n\n"; 344 345 if(trim($mybb->settings['errorloglocation']) != "") 346 { 347 @error_log($error_data, 3, $mybb->settings['errorloglocation']); 348 } 349 else 350 { 351 @error_log($error_data, 0); 352 } 353 } 354 355 /** 356 * Emails the error in the specified error log file. 357 * 358 * @param string Warning type 359 * @param string Warning message 360 * @param string Warning file 361 * @param integer Warning line 362 */ 363 function email_error($type, $message, $file, $line) 364 { 365 global $mybb; 366 367 if(!$mybb->settings['adminemail']) 368 { 369 return false; 370 } 371 372 if($type == MYBB_SQL) 373 { 374 $message = "SQL Error: {$message['error_no']} - {$message['error']}\nQuery: {$message['query']}"; 375 } 376 377 $message = "Your copy of MyBB running on {$mybb->settings['bbname']} ({$mybb->settings['bburl']}) has experienced an error. Details of the error include:\n---\nType: $type\nFile: $file (Line no. $line)\nMessage\n$message"; 378 379 @my_mail($mybb->settings['adminemail'], "MyBB error on {$mybb->settings['bbname']}", $message, $mybb->settings['adminemail']); 380 } 381 382 function output_error($type, $message, $file, $line) 383 { 384 global $mybb, $parser; 385 386 if(!$mybb->settings['bbname']) 387 { 388 $mybb->settings['bbname'] = "MyBB"; 389 } 390 391 if($type == MYBB_SQL) 392 { 393 $title = "MyBB SQL Error"; 394 $error_message = "<p>MyBB has experienced an internal SQL error and cannot continue.</p>"; 395 if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")) 396 { 397 $error_message .= "<dl>\n"; 398 $error_message .= "<dt>SQL Error:</dt>\n<dd>{$message['error_no']} - {$message['error']}</dd>\n"; 399 if($message['query'] != "") 400 { 401 $error_message .= "<dt>Query:</dt>\n<dd>{$message['query']}</dd>\n"; 402 } 403 $error_message .= "</dl>\n"; 404 } 405 } 406 else 407 { 408 $title = "MyBB Internal Error"; 409 $error_message = "<p>MyBB has experienced an internal error and cannot continue.</p>"; 410 if($mybb->settings['errortypemedium'] == "both" || $mybb->settings['errortypemedium'] == "error" || defined("IN_INSTALL") || defined("IN_UPGRADE")) 411 { 412 $error_message .= "<dl>\n"; 413 $error_message .= "<dt>Error Type:</dt>\n<dd>{$this->error_types[$type]} ($type)</dd>\n"; 414 $error_message .= "<dt>Error Message:</dt>\n<dd>{$message}</dd>\n"; 415 if(!empty($file)) 416 { 417 $error_message .= "<dt>Location:</dt><dd>File: {$file}<br />Line: {$line}</dd>\n"; 418 if(!@preg_match('#config\.php|settings\.php#', $file) && @file_exists($file)) 419 { 420 $code_pre = @file($file); 421 422 $code = ""; 423 424 if(isset($code_pre[$line-4])) 425 { 426 $code .= $line-3 . ". ".$code_pre[$line-4]; 427 } 428 429 if(isset($code_pre[$line-3])) 430 { 431 $code .= $line-2 . ". ".$code_pre[$line-3]; 432 } 433 434 if(isset($code_pre[$line-2])) 435 { 436 $code .= $line-1 . ". ".$code_pre[$line-2]; 437 } 438 439 $code .= $line . ". ".$code_pre[$line-1]; // The actual line. 440 441 if(isset($code_pre[$line])) 442 { 443 $code .= $line+1 . ". ".$code_pre[$line]; 444 } 445 446 if(isset($code_pre[$line+1])) 447 { 448 $code .= $line+2 . ". ".$code_pre[$line+1]; 449 } 450 451 if(isset($code_pre[$line+2])) 452 { 453 $code .= $line+3 . ". ".$code_pre[$line+2]; 454 } 455 456 unset($code_pre); 457 458 $parser_exists = false; 459 460 if(!is_object($parser) || !method_exists($parser, 'mycode_parse_php')) 461 { 462 if(@file_exists(MYBB_ROOT."inc/class_parser.php")) 463 { 464 @require_once MYBB_ROOT."inc/class_parser.php"; 465 $parser = new postParser; 466 $parser_exists = true; 467 } 468 } 469 else 470 { 471 $parser_exists = true; 472 } 473 474 if($parser_exists) 475 { 476 $code = $parser->mycode_parse_php($code, true); 477 } 478 else 479 { 480 $code = @nl2br($code); 481 } 482 483 $error_message .= "<dt>Code:</dt><dd>{$code}</dd>\n"; 484 } 485 } 486 $backtrace = $this->generate_backtrace(); 487 if($backtrace && !in_array($type, $this->mybb_error_types)) 488 { 489 $error_message .= "<dt>Backtrace:</dt><dd>{$backtrace}</dd>\n"; 490 } 491 $error_message .= "</dl>\n"; 492 } 493 } 494 495 if(isset($lang->settings['charset'])) 496 { 497 $charset = $lang->settings['charset']; 498 } 499 else 500 { 501 $charset = 'UTF-8'; 502 } 503 504 if(!headers_sent() && !defined("IN_INSTALL") && !defined("IN_UPGRADE")) 505 { 506 @header('HTTP/1.1 503 Service Temporarily Unavailable'); 507 @header('Status: 503 Service Temporarily Unavailable'); 508 @header('Retry-After: 1800'); 509 @header("Content-type: text/html; charset={$charset}"); 510 $_SERVER['PHP_SELF'] = htmlspecialchars_uni($_SERVER['PHP_SELF']); 511 512 echo <<<EOF 513 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> 514 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" > 515 <head profile="http://gmpg.org/xfn/11"> 516 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 517 <title>{$mybb->settings['bbname']} - Internal Error</title> 518 <style type="text/css"> 519 body { background: #efefef; color: #000; font-family: Verdana; font-size: 12px; text-align: center; line-height: 1.4; } 520 a:link { color: #026CB1; text-decoration: none; } 521 a:visited { color: #026CB1; text-decoration: none; } 522 a:hover, a:active { color: #000; text-decoration: underline; } 523 #container { width: 600px; padding: 20px; background: #fff; border: 1px solid #e4e4e4; margin: 100px auto; text-align: left; } 524 h1 { margin: 0; background: url({$_SERVER['PHP_SELF']}?action=mybb_logo) no-repeat; height: 82px; width: 248px; } 525 #content { border: 1px solid #B60101; background: #fff; } 526 h2 { font-size: 12px; padding: 4px; background: #B60101; color: #fff; margin: 0; } 527 .invisible { display: none; } 528 #error { padding: 6px; } 529 #footer { font-size: 11px; border-top: 1px solid #ccc; padding-top: 10px; } 530 dt { font-weight: bold; } 531 </style> 532 </head> 533 <body> 534 <div id="container"> 535 <div id="logo"> 536 <h1><a href="http://mybb.com/" title="MyBulletinBoard"><span class="invisible">MyBB</span></a></h1> 537 </div> 538 539 <div id="content"> 540 <h2>{$title}</h2> 541 542 <div id="error"> 543 {$error_message} 544 <p id="footer">Please contact the <a href="http://mybb.com">MyBB Group</a> for support.</p> 545 </div> 546 </div> 547 </div> 548 </body> 549 </html> 550 EOF; 551 } 552 else 553 { 554 echo <<<EOF 555 <style type="text/css"> 556 #mybb_error_content { border: 1px solid #B60101; background: #fff; } 557 #mybb_error_content h2 { font-size: 12px; padding: 4px; background: #B60101; color: #fff; margin: 0; } 558 #mybb_error_error { padding: 6px; } 559 #mybb_error_footer { font-size: 11px; border-top: 1px solid #ccc; padding-top: 10px; } 560 #mybb_error_content dt { font-weight: bold; } 561 </style> 562 <div id="mybb_error_content"> 563 <h2>{$title}</h2> 564 <div id="mybb_error_error"> 565 {$error_message} 566 <p id="mybb_error_footer">Please contact the <a href="http://mybb.com">MyBB Group</a> for support.</p> 567 </div> 568 </div> 569 EOF; 570 } 571 exit(1); 572 } 573 574 /** 575 * Generates a backtrace if the server supports it. 576 * 577 * @return string The generated backtrace 578 */ 579 function generate_backtrace() 580 { 581 if(function_exists("debug_backtrace")) 582 { 583 $trace = debug_backtrace(); 584 $backtrace = "<table style=\"width: 100%; margin: 10px 0; border: 1px solid #aaa; border-collapse: collapse; border-bottom: 0;\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\">\n"; 585 $backtrace .= "<thead><tr>\n"; 586 $backtrace .= "<th style=\"border-bottom: 1px solid #aaa; background: #ccc; padding: 4px; text-align: left; font-size: 11px;\">File</th>\n"; 587 $backtrace .= "<th style=\"border-bottom: 1px solid #aaa; background: #ccc; padding: 4px; text-align: left; font-size: 11px;\">Line</th>\n"; 588 $backtrace .= "<th style=\"border-bottom: 1px solid #aaa; background: #ccc; padding: 4px; text-align: left; font-size: 11px;\">Function</th>\n"; 589 $backtrace .= "</tr></thead>\n<tbody>\n"; 590 591 // Strip off this function from trace 592 array_shift($trace); 593 594 foreach($trace as $call) 595 { 596 if(empty($call['file'])) $call['file'] = "[PHP]"; 597 if(empty($call['line'])) $call['line'] = " "; 598 if(!empty($call['class'])) $call['function'] = $call['class'].$call['type'].$call['function']; 599 $call['file'] = str_replace(MYBB_ROOT, "/", $call['file']); 600 $backtrace .= "<tr>\n"; 601 $backtrace .= "<td style=\"font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;\">{$call['file']}</td>\n"; 602 $backtrace .= "<td style=\"font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;\">{$call['line']}</td>\n"; 603 $backtrace .= "<td style=\"font-size: 11px; padding: 4px; border-bottom: 1px solid #ccc;\">{$call['function']}</td>\n"; 604 $backtrace .= "</tr>\n"; 605 } 606 $backtrace .= "</tbody></table>\n"; 607 } 608 return $backtrace; 609 } 610 } 611 ?>
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| Generated: Tue Oct 8 19:19:50 2013 | Cross-referenced by PHPXref 0.7.1 |