kernel.php

   1 <?php
   2 /*=====================================================================*\
   3 || ###################################################################
   4 || # Iris Studios Shared Object Framework [#]version[#]
   5 || # Copyright ©2002-[#]year[#] Iris Studios, Inc.
   6 || #
   7 || # This program is free software; you can redistribute it and/or modify
   8 || # it under the terms of the GNU General Public License as published by
   9 || # the Free Software Foundation; version [#]gpl[#] of the License.
  10 || #
  11 || # This program is distributed in the hope that it will be useful, but
  12 || # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13 || # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  14 || # more details.
  15 || #
  16 || # You should have received a copy of the GNU General Public License along
  17 || # with this program; if not, write to the Free Software Foundation, Inc.,
  18 || # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  19 || ###################################################################
  20 \*=====================================================================*/
  21
  22 /**
  23 * Iris Studios Shared Object Framework Kernel
  24 * kernel.php
  25 *
  26 * @package      ISSO
  27 */
  28
  29 if (!function_exists('version_compare'))
  30 {
  31         trigger_error('You need PHP version 4.1.0 or newer to run ISSO', E_USER_ERROR);
  32         exit;
  33 }
  34
  35 if (version_compare(PHP_VERSION, '5.0.0', '>='))
  36 {
  37         if (ini_get('error_reporting') & E_NOTICE)
  38         {
  39                 error_reporting(ini_get('error_reporting') - E_NOTICE);
  40         }
  41         if (ini_get('error_reporting') & E_USER_NOTICE)
  42         {
  43                 error_reporting(ini_get('error_reporting') - E_USER_NOTICE);
  44         }
  45 }
  46
  47 $oldlevel = ini_get('error_reporting');
  48 $newlevel = $oldlevel;
  49 $levels = array(E_ERROR => E_USER_ERROR, E_WARNING => E_USER_WARNING, E_NOTICE => E_USER_NOTICE);
  50 foreach ($levels AS $php => $isso)
  51 {
  52         if ($oldlevel & $php)
  53         {
  54                 if (!($oldlevel & $isso))
  55                 {
  56                         $newlevel += $isso;
  57                 }
  58         }
  59         else
  60         {
  61                 if ($oldlevel & $isso)
  62                 {
  63                         $newlevel -= $isso;
  64                 }
  65         }
  66 }
  67 error_reporting($newlevel);
  68
  69 if ((bool)ini_get('register_globals') === true)
  70 {
  71         $superglobals = array('_GET', '_COOKIE', '_FILES', '_POST', '_SERVER', '_ENV');
  72         foreach ($superglobals AS $global)
  73         {
  74                 if (is_array(${$global}))
  75                 {
  76                         foreach (${$global} AS $_key => $_val)
  77                         {
  78                                 if (isset(${$_key}))
  79                                 {
  80                                         unset(${$_key});
  81                                 }
  82                         }
  83                 }
  84         }
  85 }
  86
  87 /**#@+
  88 * Input cleaning type constant
  89 */
  90 /**
  91 * Integer type
  92 */
  93 define('TYPE_INT', 1);
  94
  95 /**
  96 * Unsigned integer
  97 */
  98 define('TYPE_UINT', 2);
  99
 100 /**
 101 * Float type
 102 */
 103 define('TYPE_FLOAT', 4);
 104
 105 /**
 106 * Boolean type
 107 */
 108 define('TYPE_BOOL', 8);
 109
 110 /**
 111 * String - cleaned
 112 */
 113 define('TYPE_STR', 16);
 114
 115 /**
 116 * String - deliberate unclean
 117 */
 118 define('TYPE_STRUN', 32);
 119
 120 /**
 121 * No cleaning - here for use in API
 122 */
 123 define('TYPE_NOCLEAN', 64);
 124 /**#@-*/
 125
 126 /**
 127 * Iris Studios Shared Object Framework (ISSO)
 128 *
 129 * This framework allows a common backend to be used amongst all Iris
 130 * Studios applications and is built to be abstract and flexible.
 131 * The base framework handles all loading and module management.
 132 *
 133 * Constants:
 134 *               ISSO_NO_INPUT_SANITIZE - Disables the automatic input sanitizer
 135 *               ISSO_CHECK_POST_REFERER - Will check to make sure that on POSTed
 136 *                                                                       data, the referer matches the host
 137 *
 138 * @author               Iris Studios, Inc.
 139 * @copyright    Copyright ©2002 - [#]year[#], Iris Studios, Inc.
 140 * @version              $Revision$
 141 * @package              ISSO
 142 *
 143 */
 144 class Shared_Object_Framework
 145 {
 146         /**
 147         * ISSO version
 148         * @var  string
 149         */
 150         var $version = '[#]version[#]';
 151
 152         /**
 153         * Location of ISSO, used for internal linking
 154         * @var  string
 155         */
 156         var $sourcepath = '';
 157
 158         /**
 159         * Path of the current application
 160         * @var  string
 161         */
 162         var $apppath = '';
 163
 164         /**
 165         * Web path used to get the web location of the installation of ISSO; only used for Printer module
 166         * @var  string
 167         */
 168         var $webpath = '';
 169
 170         /**
 171         * Name of the current application
 172         * @var  string
 173         */
 174         var $application = '';
 175
 176         /**
 177         * Version of the current application
 178         * @var  string
 179         */
 180         var $appversion = '';
 181
 182         /**
 183         * Whether debug mode is on or off
 184         * @var  bool
 185         */
 186         var $debug = false;
 187
 188         /**
 189         * List of all active debug messages
 190         * @var  array
 191         */
 192         var $debuginfo = array();
 193
 194         /**
 195         * List of loaded modules
 196         * @var  array
 197         */
 198         var $modules = array();
 199
 200         /**
 201         * An array of sanitized variables that have been cleaned for HTML tag openers and double quotes
 202         * @var  array
 203         */
 204         var $in = array();
 205
 206         /**
 207         * If we are running with magic_quotes_gpc on or off
 208         * @var  int
 209         */
 210         var $magicquotes = 0;
 211
 212         // ###################################################################
 213         /**
 214         * Constructor
 215         */
 216         function __construct()
 217         {
 218                 $GLOBALS['isso:null-framework'] = null;
 219
 220                 // error reporting
 221                 set_error_handler(array(&$this, '_error_handler'));
 222
 223                 // magic quotes
 224                 $this->magicquotes = get_magic_quotes_gpc();
 225                 set_magic_quotes_runtime(0);
 226
 227                 // start input sanitize using variable_order GPC
 228                 if (!defined('ISSO_NO_INPUT_SANITIZE'))
 229                 {
 230                         $this->exec_sanitize_data();
 231                 }
 232
 233                 if (defined('ISSO_CHECK_POST_REFERER'))
 234                 {
 235                         $this->exec_referer_check();
 236                 }
 237         }
 238
 239         // ###################################################################
 240         /**
 241         * (PHP 4) Constructor
 242         */
 243         function Shared_Object_Framework()
 244         {
 245                 $this->__construct();
 246         }
 247
 248         // ###################################################################
 249         /**
 250         * Prepares a path for being set as the sourcepath
 251         *
 252         * @access       public
 253         *
 254         * @param        string  Source path or URL
 255         *
 256         * @return       string  Prepared source path
 257         */
 258         function fetch_sourcepath($source)
 259         {
 260                 if (substr($source, strlen($source) - 1) != DIRECTORY_SEPARATOR)
 261                 {
 262                         $source .= DIRECTORY_SEPARATOR;
 263                 }
 264                 return $source;
 265         }
 266
 267         // ###################################################################
 268         /**
 269         * Loads a framework module
 270         *
 271         * @access       public
 272         *
 273         * @param        string  Name of the framework file to load
 274         * @param        string  Internal variable to initialize as; to not instantiate (just require) leave it as NULL
 275         * @param        bool    Globalize the internal variable?
 276         *
 277         * @return       object  Instantiated instance
 278         */
 279         function &load($framework, $asobject, $globalize = false)
 280         {
 281                 // set the object interlock
 282                 if (!method_exists($GLOBALS['isso:null-framework'], 'load'))
 283                 {
 284                         $GLOBALS['isso:null-framework'] =& $this;
 285                 }
 286
 287                 if ($this->is_loaded($framework))
 288                 {
 289                         return $this->modules["$framework"];
 290                 }
 291
 292                 if ($this->sourcepath == '')
 293                 {
 294                         trigger_error('Invalid sourcepath specified', E_USER_ERROR);
 295                 }
 296
 297                 if (file_exists($this->sourcepath . $framework . '.php'))
 298                 {
 299                         require_once($this->sourcepath . $framework . '.php');
 300                 }
 301                 else
 302                 {
 303                         trigger_error('Could not find the framework ' . $this->sourcepath . $framework . '.php', E_USER_ERROR);
 304                 }
 305
 306                 if ($asobject === null)
 307                 {
 308                         return;
 309                 }
 310
 311                 if (isset($this->$asobject))
 312                 {
 313                         trigger_error('Cannot instantiate framework `' . $framework . '` into `' . $asobject . '`', E_USER_ERROR);
 314                 }
 315
 316                 $this->$asobject = new $framework($this);
 317
 318                 $this->modules["$framework"] =& $this->$asobject;
 319
 320                 if ($globalize)
 321                 {
 322                         $GLOBALS["$asobject"] =& $this->$asobject;
 323                 }
 324
 325                 return $this->$asobject;
 326         }
 327
 328         // ###################################################################
 329         /**
 330         * Prints a list of all currently loaded framework modules
 331         *
 332         * @access       public
 333         *
 334         * @param        bool    Return the data as an array?
 335         *
 336         * @return       mixed   HTML output or an array of loaded modules
 337         */
 338         function show_modules($return = false)
 339         {
 340                 foreach ($this->modules AS $object)
 341                 {
 342                         $modules[] = get_class($object);
 343                 }
 344
 345                 if ($return)
 346                 {
 347                         return $modules;
 348                 }
 349                 else
 350                 {
 351                         $output = "\n\n<ul>\n\t<li>";
 352                         $output .= implode("</li>\n\t<li>", $modules);
 353                         $output .= "</li>\n</ul>\n\n";
 354                         $this->message('Loaded Modules', $output, 1);
 355                 }
 356         }
 357
 358         // ###################################################################
 359         /**
 360         * Verifies to see if a framework has been loaded
 361         *
 362         * @access       public
 363         *
 364         * @param        string  Framework name
 365         *
 366         * @return       bool    Whether or not the framework has been loaded
 367         */
 368         function is_loaded($framework)
 369         {
 370                 if (isset($this->modules["$framework"]))
 371                 {
 372                         return true;
 373                 }
 374                 else
 375                 {
 376                         return false;
 377                 }
 378         }
 379
 380         // ###################################################################
 381         /**
 382         * Prints an ISSO message
 383         *
 384         * @access       public
 385         *
 386         * @param        string  The title of the message
 387         * @param        string  The content of the message
 388         * @param        integer Type of message to be printed
 389         * @param        bool    Return the output?
 390         * @param        bool    Show the debug stack?
 391         *
 392         * @return       mixed   Output or null
 393         */
 394         function message($title, $message, $type, $return = false, $stack = true)
 395         {
 396                 switch ($type)
 397                 {
 398                         // Message
 399                         case 1:
 400                                 $prefix = 'Message';
 401                                 $color = '#669900';
 402                                 $font = '#000000';
 403                         break;
 404
 405                         // Warning
 406                         case 2:
 407                                 $prefix = 'Warning';
 408                                 $color = '#003399';
 409                                 $font = '#FFFFFF';
 410                         break;
 411
 412                         case 3:
 413                                 $prefix = 'Error';
 414                                 $color = '#990000';
 415                                 $font = '#EFEFEF';
 416                         break;
 417                 }
 418
 419                 $backtrace = debug_backtrace();
 420                 unset($backtrace[0]);
 421
 422                 $output = "\n<br />\n<table cellpadding=\"4\" cellspacing=\"1\" border=\"0\" width=\"500\" style=\"background-color: $color; color: black; font-family: Verdana, sans-serif; font-size: 12px;\">";
 423                 $output .= "\n<tr style=\"color: $font; text-align: left\">\n\t<td><strong>$prefix: $title</strong></td>\n</tr>";
 424                 $output .= "\n<tr style=\"background-color: #FFFFFF; text-align: left\">\n\t<td>$message</td>\n</tr>";
 425                 $output .= (($stack AND $GLOBALS['isso:null-framework']->debug) ? "\n<tr style=\"background-color: #FFFFFF; text-align: left\">\n\t<td><strong>Debug Stack:</strong> <pre>" . print_r($backtrace, true) . "</pre></td>\n</tr>" : '');
 426                 $output .= "\n</table>\n<br />\n";
 427
 428                 if ($return)
 429                 {
 430                         return $output;
 431                 }
 432                 else
 433                 {
 434                         print($output);
 435                 }
 436         }
 437
 438         // ###################################################################
 439         /**
 440         * Custom error handler for ISSO; only handle E_WARNING, E_NOTICE,
 441         * E_USER_ERROR, E_USER_WARNING, E_USER_NOTICE
 442         *
 443         * @access       private
 444         *
 445         * @param        integer Error number
 446         * @param        string  Error message string
 447         * @param        string  File that contains the error
 448         * @param        string  The line number of the error
 449         * @param        string  The active symbol table at which point the error occurred
 450         */
 451         function _error_handler($errno, $errstr, $errfile, $errline)
 452         {
 453                 switch ($errno)
 454                 {
 455                         // Fatal
 456                         case E_USER_ERROR:
 457                                 $title = 'Fatal';
 458                                 $level = 3;
 459                                 if (!(ini_get('error_reporting') & E_USER_ERROR))
 460                                 {
 461                                         return;
 462                                 }
 463                         break;
 464
 465                         // Error
 466                         case E_USER_WARNING:
 467                                 $title = 'Warning';
 468                                 $level = 2;
 469                                 if (!(ini_get('error_reporting') & E_USER_WARNING) AND !(ini_get('error_reporting') & E_WARNING))
 470                                 {
 471                                         return;
 472                                 }
 473                         break;
 474
 475                         // Warning
 476                         case E_USER_NOTICE:
 477                         default:
 478                                 $title = 'Notice';
 479                                 $level = 1;
 480                                 if (!(ini_get('error_reporting') & E_USER_NOTICE) AND !(ini_get('error_reporting') & E_NOTICE))
 481                                 {
 482                                         return;
 483                                 }
 484                         break;
 485                 }
 486
 487                 $errstr .= " in <strong>$errfile</strong> on line <strong>$errline</strong>";
 488
 489                 $errstr = str_replace(array(getcwd(), dirname(getcwd())), '', $errstr);
 490
 491                 $this->message($title, $errstr, $level);
 492
 493                 if ($errno == E_USER_ERROR)
 494                 {
 495                         exit;
 496                 }
 497         }
 498
 499         // ###################################################################
 500         /**
 501         * Creates a table that explains the error reporting levels and their
 502         * state
 503         *
 504         * @access       public
 505         */
 506         function explain_error_reporting()
 507         {
 508                 $levels = array(
 509                         'E_ERROR'                       => E_ERROR,
 510                         'E_WARNING'                     => E_WARNING,
 511                         'E_PARSE'                       => E_PARSE,
 512                         'E_NOTICE'                      => E_NOTICE,
 513                         'E_CORE_ERROR'          => E_CORE_ERROR,
 514                         'E_CORE_WARNING'        => E_CORE_WARNING,
 515                         'E_COMPILE_ERROR'       => 64,
 516                         'E_COMPILE_WARNING'     => 128,
 517                         'E_USER_ERROR'          => E_USER_ERROR,
 518                         'E_USER_WARNING'        => E_USER_WARNING,
 519                         'E_USER_NOTICE'         => E_USER_NOTICE,
 520                         'E_ALL'                         => E_ALL,
 521                         'E_STRICT'                      => 2048
 522                 );
 523
 524                 $table = '<table cellspacing="0" cellpadding="2" border="0">';
 525
 526                 foreach ($levels AS $name => $value)
 527                 {
 528                         $table .= '
 529                         <tr>
 530                                 <td>' . $name . '</td>
 531                                 <td>' . (ini_get('error_reporting') & $value) . '</td>
 532                         </tr>';
 533                 }
 534
 535                 $table .= '
 536                 </table>';
 537
 538                 $this->message('Error Reporting', $table, 1);
 539         }
 540
 541         // ###################################################################
 542         /**
 543         * Logs a debug message for verbose output
 544         *
 545         * @access       public
 546         *
 547         * @param        string  Message
 548         */
 549         function debug($message)
 550         {
 551                 $this->debuginfo[] = $message;
 552         }
 553
 554         // ###################################################################
 555         /**
 556         * Recursive XSS cleaner
 557         *
 558         * @access       private
 559         *
 560         * @param        mixed   Unsanitized REQUEST data
 561         *
 562         * @return       mixed   Sanitized data
 563         */
 564         function _sanitize_input_recursive($data)
 565         {
 566                 foreach ($data AS $key => $value)
 567                 {
 568                         if (is_array($value))
 569                         {
 570                                 $data["$key"] = $this->_sanitize_input_recursive($value);
 571                         }
 572                         else
 573                         {
 574                                 $data["$key"] = $this->sanitize($value);
 575                         }
 576                 }
 577                 return $data;
 578         }
 579
 580         // ###################################################################
 581         /**
 582         * Simple way to protect against HTML attacks with Unicode support
 583         *
 584         * @access       public
 585         *
 586         * @param        string  Unsanitzed text
 587         *
 588         * @return       string  Properly protected text that only encodes potential threats
 589         */
 590         function sanitize($text)
 591         {
 592                 if ($this->magicquotes)
 593                 {
 594                         return str_replace(array('<', '>', '\"', '"'), array('&lt;', '&gt;', '&quot;', '&quot;'), $text);
 595                 }
 596                 else
 597                 {
 598                         return str_replace(array('<', '>', '"'), array('&lt;', '&gt;', '&quot;'), $text);
 599                 }
 600         }
 601
 602         // ###################################################################
 603         /**
 604         * Unicode-safe entity encoding system; similar to sanitize()
 605         *
 606         * @access       public
 607         *
 608         * @param        string  Unsanitized text
 609         *
 610         * @return       string  Unicode-safe sanitized text with entities preserved
 611         */
 612         function entity_encode($text)
 613         {
 614                 $text = str_replace('&', '&amp;', $text);
 615                 $text = $this->sanitize($text);
 616                 return $text;
 617         }
 618
 619         // ###################################################################
 620         /**
 621         * Takes text that has been processed for HTML and unsanitizes it
 622         *
 623         * @access       public
 624         *
 625         * @param        string  Text that needs to be turned back into HTML
 626         *
 627         * @return       string  Unsanitized text
 628         */
 629         function unsanitize($text)
 630         {
 631                 return str_replace(array('&lt;', '&gt;', '&quot;'), array('<', '>', '"'), $text);
 632         }
 633
 634         // ###################################################################
 635         /**
 636         * Smart addslashes() that only applies itself it the Magic Quotes GPC
 637         * is off. This should only be run on database query values.
 638         *
 639         * @access       public
 640         *
 641         * @param        string  Some string
 642         * @param        bool    If the data is binary; if so it'll be run through DB::escape_stringing()
 643         * @param        bool    Force magic quotes to be off
 644         *
 645         * @return       string  String that has slashes added
 646         */
 647         function escape($str, $binary = false, $force = true)
 648         {
 649                 if ($this->magicquotes AND !$force)
 650                 {
 651                         if (isset($this->modules[ISSO_DB_LAYER]) AND $binary)
 652                         {
 653                                 return $this->modules[ISSO_DB_LAYER]->escape_string(str_replace(array("\'", '\"'), array("'", '"'), $str));
 654                         }
 655                         return $str;
 656                 }
 657                 else
 658                 {
 659                         if (isset($this->modules[ISSO_DB_LAYER]) AND $binary)
 660                         {
 661                                 return $this->modules[ISSO_DB_LAYER]->escape_string($str);
 662                         }
 663                         return addslashes($str);
 664                 }
 665         }
 666
 667         // ###################################################################
 668         /**
 669         * Runs through all of the input data and sanitizes it.
 670         *
 671         * @access       public
 672         */
 673         function exec_sanitize_data()
 674         {
 675                 $this->in = $this->_sanitize_input_recursive(array_merge($_GET, $_POST, $_COOKIE));
 676         }
 677
 678         // ###################################################################
 679         /**
 680         * Sanitize function for something other than a string (which
 681         * everything is sanitized for if you use exec_sanitize_data(). Cleaned
 682         * data is placed back into $isso->in; this makes it so you don't have
 683         * to constantly intval() [etc.] data.
 684         *
 685         * @access       public
 686         *
 687         * @param        array   Array of elements to clean as varname => type
 688         */
 689         function input_clean_array($vars)
 690         {
 691                 foreach ($vars AS $varname => $type)
 692                 {
 693                         $this->input_clean($varname, $type);
 694                 }
 695         }
 696
 697         // ###################################################################
 698         /**
 699         * Sanitize function that does a single variable as oppoesd to an array
 700         * (see input_clean_array() for more details)
 701         *
 702         * @access       public
 703         *
 704         * @param        string  Variable name in $isso->in[]
 705         * @param        integer Sanitization type constant
 706         */
 707         function input_clean($varname, $type)
 708         {
 709                 if (isset($this->in["$varname"]))
 710                 {
 711                         $this->in["$varname"] = $this->clean($this->in["$varname"], $type);
 712                 }
 713                 else
 714                 {
 715                         $this->in["$varname"] = null;
 716                 }
 717
 718                 return $this->in["$varname"];
 719         }
 720
 721         // ###################################################################
 722         /**
 723         * Cleaning function that does the work for input_clean(); this is
 724         * moved here so it can be used to clean things that aren't in
 725         * $isso->in[]
 726         *
 727         * @access       public
 728         *
 729         * @param        mixed   Data
 730         * @param        integer Sanitization type constant
 731         *
 732         * @return       mixed   Cleaned data
 733         */
 734         function clean($value, $type)
 735         {
 736                 if ($type == TYPE_INT)
 737                 {
 738                         $value = intval($value);
 739                 }
 740                 else if ($type == TYPE_UINT)
 741                 {
 742                         $value = abs(intval($value));
 743                 }
 744                 else if ($type == TYPE_FLOAT)
 745                 {
 746                         $value = floatval($value);
 747                 }
 748                 else if ($type == TYPE_BOOL)
 749                 {
 750                         $value = (bool)$value;
 751                 }
 752                 else if ($type == TYPE_STR)
 753                 {
 754                         $value = $value;
 755                 }
 756                 else if ($type == TYPE_STRUN)
 757                 {
 758                         $value = $this->unsanitize($value);
 759                 }
 760                 else if ($type == TYPE_NOCLEAN)
 761                 {
 762                         $value = $value;
 763                 }
 764                 else
 765                 {
 766                         trigger_error('Invalid clean type `' . $type . '` specified', E_USER_ERROR);
 767                 }
 768
 769                 return $value;
 770         }
 771
 772         // ###################################################################
 773         /**
 774         * Checks to see if a POST refer is actually from us
 775         *
 776         * @access       public
 777         */
 778         function exec_referer_check()
 779         {
 780                 if ($_SERVER['REQUEST_METHOD'] == 'POST')
 781                 {
 782                         $host = ($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : $_ENV['HTTP_HOST'];
 783
 784                         if ($host AND $_SERVER['HTTP_REFERER'])
 785                         {
 786                                 $parts = parse_url($_SERVER['HTTP_REFERER']);
 787                                 $ourhost = $parts['host'] . (isset($parts['port']) ? ":$parts[port]" : '');
 788
 789                                 if ($ourhost != $host)
 790                                 {
 791                                         trigger_error('No external hosts are allowed to POST to this application', E_USER_ERROR);
 792                                 }
 793                                 $this->debug('remote post check = ok');
 794                         }
 795                         else
 796                         {
 797                                 $this->debug('remote post check = FAILED');
 798                         }
 799                 }
 800         }
 801
 802         // ###################################################################
 803         /**
 804         * Constructs a debug information box that contains various debugging
 805         * information points
 806         *
 807         * @access       public
 808         *
 809         * @param        bool    Show template information?
 810         *
 811         * @return       string  Debugging block
 812         */
 813         function construct_debug_block($dotemplates)
 814         {
 815                 $debug = '';
 816
 817                 if ($this->debug)
 818                 {
 819                         $debug = "\n<ul>";
 820
 821                         // templates
 822                         if ($dotemplates)
 823                         {
 824                                 // both template and template_fs are viable, so we need to determine the right one
 825                                 if ($this->is_loaded('template'))
 826                                 {
 827                                         $tpl_obj =& $this->modules['template'];
 828                                 }
 829                                 else if ($this->is_loaded('template_fs'))
 830                                 {
 831                                         $tpl_obj =& $this->modules['template_fs'];
 832                                 }
 833                                 else
 834                                 {
 835                                         $tpl_obj = null;
 836                                 }
 837
 838                                 $optlist = array();
 839                                 $usage = array();
 840                                 foreach ($tpl_obj->usage AS $name => $count)
 841                                 {
 842                                         if (in_array($name, $tpl_obj->uncached))
 843                                         {
 844                                                 $optlist[] = $name . '[' . $count . ']';
 845                                         }
 846                                         $usage[] = $name . " ($count)";
 847                                 }
 848
 849                                 $sizeof = sizeof($tpl_obj->uncached);
 850                                 if ($sizeof > 0)
 851                                 {
 852                                         $debug .= "\n\t<li><strong style=\"color: red\">Uncached Template(s):</strong> $sizeof ( " . implode(' &nbsp; ', $optlist) . " )</li>";
 853                                 }
 854                         }
 855
 856                         // source control
 857                         $scinfo = 'Not Under Source Control';
 858                         if (defined('SVN'))
 859                         {
 860                                 $scinfo = constant('SVN');
 861
 862                                 if (preg_match('#\$Id:?\s*\$#', $scinfo))
 863                                 {
 864                                         $scinfo = 'Not Under Source Control';
 865                                 }
 866                                 else
 867                                 {
 868                                         $scinfo = preg_replace('#\$' . '(Head)?URL: (.+?) \$#e', "end(explode('/', '\\2'))", $scinfo);
 869                                         $scinfo = preg_replace('#\$' . '(LastModified)?Revision: (.+?) \$#', 'SVN \\2', $scinfo);
 870                                         $scinfo = preg_replace('#\$' . 'Id: (.+?) ([0-9].+?) [0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2}(.+?) (.+?) \$#', '\\1 - SVN \\2', $scinfo);
 871                                 }
 872                         }
 873
 874                         $scinfo = trim($scinfo);
 875                         $debug .= "\n\t<li><strong>Source Control:</strong> $scinfo</li>";
 876
 877                         // query information
 878                         if (is_object($this->modules[ISSO_DB_LAYER]))
 879                         {
 880                                 $debug .= "\n\t<li><strong>Total Queries:</strong> " . sizeof($this->modules[ISSO_DB_LAYER]->history) . " (<a href=\"" . $this->sanitize($_SERVER['REQUEST_URI']) . ((strpos($_SERVER['REQUEST_URI'], '?') !== false) ? '&amp;query=1' : '?query=1') . "\">?</a>)</li>";
 881                         }
 882
 883                         // total execution time
 884                         if (defined('ISSO_MT_START'))
 885                         {
 886                                 $this->load('functions', 'functions');
 887                                 $debug .= "\n\t<li><strong>Total Execution Time:</strong> " . round($this->modules['functions']->fetch_microtime_diff(ISSO_MT_START), 10) . "</li>";
 888                         }
 889
 890                         // debug notices
 891                         $debug .= "\n\t<li>\n\t\t<select>\n\t\t\t<option>Debug Notices (" . sizeof($this->debuginfo) . ")</option>";
 892                         foreach ((array)$this->debuginfo AS $msg)
 893                         {
 894                                 $debug .= "\n\t\t\t<option>--- $msg</option>";
 895                         }
 896                         $debug .= "\n\t\t</select>\n\t</li>";
 897
 898                         // loaded modules
 899                         $modules = $this->show_modules(true);
 900                         $debug .= "\n\t<li>\n\t\t<select>\n\t\t\t<option>Loaded Modules (" . sizeof($modules) . ")</option>";
 901                         foreach ($modules AS $mod)
 902                         {
 903                                 $debug .= "\n\t\t\t<option>--- $mod</option>";
 904                         }
 905                         $debug .= "\n\t\t</select>\n\t</li>";
 906
 907                         // template usage
 908                         if ($dotemplates)
 909                         {
 910                                 $debug .= "\n\t<li>\n\t\t<select>\n\t\t\t<option>Template Usage (" . array_sum($tpl_obj->usage) . ")</option>";
 911                                 foreach ($usage AS $tpl)
 912                                 {
 913                                         $debug .= "\n\t\t\t<option>--- $tpl</option>";
 914                                 }
 915                                 $debug .= "\n\t\t</select>\n\t</li>";
 916                         }
 917
 918                         $debug .= "\n</ul>";
 919
 920                         $debug = "\n\n<!-- dev debug -->\n<div align=\"center\">\n\n<hr />\n" . $this->message('Debug Information', $debug, 1, true, false) . "\n</div>\n<!-- / dev debug -->\n\n";
 921                 }
 922
 923                 return $debug;
 924         }
 925 }
 926
 927 /*=====================================================================*\
 928 || ###################################################################
 929 || # $HeadURL$
 930 || # $Id$
 931 || ###################################################################
 932 \*=====================================================================*/
 933 ?>