inc/extensions.php

   1 <?php
   2 /************************************************************************
   3  * MXChange v0.2.1                                    Start: 03/25/2004 *
   4  * ===============                              Last change: 09/29/2004 *
   5  *                                                                      *
   6  * -------------------------------------------------------------------- *
   7  * File              : extensions.php                                   *
   8  * -------------------------------------------------------------------- *
   9  * Short description : Extension management                             *
  10  * -------------------------------------------------------------------- *
  11  * Kurzbeschreibung  : Erweiterungen-Management                         *
  12  * -------------------------------------------------------------------- *
  13  *                                                                      *
  14  * -------------------------------------------------------------------- *
  15  * Copyright (c) 2003 - 2008 by Roland Haeder                           *
  16  * For more information visit: http://www.mxchange.org                  *
  17  *                                                                      *
  18  * This program is free software; you can redistribute it and/or modify *
  19  * it under the terms of the GNU General Public License as published by *
  20  * the Free Software Foundation; either version 2 of the License, or    *
  21  * (at your option) any later version.                                  *
  22  *                                                                      *
  23  * This program is distributed in the hope that it will be useful,      *
  24  * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
  25  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
  26  * GNU General Public License for more details.                         *
  27  *                                                                      *
  28  * You should have received a copy of the GNU General Public License    *
  29  * along with this program; if not, write to the Free Software          *
  30  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,               *
  31  * MA  02110-1301  USA                                                  *
  32  ************************************************************************/
  33
  34 // Some security stuff...
  35 if (ereg(basename(__FILE__), $_SERVER['PHP_SELF']))
  36 {
  37         $INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), "/inc") + 4) . "/security.php";
  38         require($INC);
  39 }
  40 //
  41 function EXTENSION_REGISTER ($ext_name, $id, $dry_run=false)
  42 {
  43         global $NOTES, $_CONFIG, $INC_POOL, $cacheInstance;
  44         // We want to register an extension and registration status is by default "failed" (= false)
  45         $EXT_LOAD_MODE = "register"; $ret = false; $SQLs = array();
  46         $INC_POOL = array();
  47
  48         // This shall never do a non-admin user!
  49         if (!IS_ADMIN()) return false;
  50
  51         // Is this extension already installed?
  52         if (EXT_IS_ACTIVE($ext_name)) return false;
  53
  54         // Generate file name
  55         $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
  56
  57         // Does this extension exists?
  58         if (FILE_READABLE($file))
  59         {
  60                 // Extension was found so we can load it in registration mode
  61                 require($file);
  62
  63                 // And run possible updates
  64                 $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = "";
  65                 foreach ($EXT_VER_HISTORY as $EXT_VER)
  66                 {
  67                         require($file);
  68                         if (((GET_EXT_VERSION("sql_patches") != '') && ($_CONFIG['verbose_sql'] == "Y")) || (!EXT_IS_ACTIVE("sql_patches")))
  69                         {
  70                                 if (!empty($UPDATE_NOTES))
  71                                 {
  72                                         // Update notes found
  73                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
  74                                         $UPDATE_NOTES = "";
  75                                 }
  76                                  elseif (($EXT_VER == "0.0") || ($EXT_VER == "0.0.0"))
  77                                 {
  78                                         // Initial release
  79                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
  80                                 }
  81                                  else
  82                                 {
  83                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
  84                                 }
  85                         }
  86                 }
  87
  88                 // Does this extension depends on an outstanding update of another update?
  89                 if (!empty($EXT_UPDATE_DEPENDS))
  90                 {
  91                         // Backup SQL commands and clear current
  92                         $SQLs2 = $SQLs;  $SQLs = array(); $test = false;
  93
  94                         // Backup language as well
  95                         $LANG_BCK = $EXT_LANG_PREFIX; $EXT_ALWAYS_ACTIVE = "N";
  96
  97                         // Load required extension also in update mode
  98                         $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $EXT_UPDATE_DEPENDS);
  99
 100                         // Check for required file
 101                         if (FILE_READABLE($file))
 102                         {
 103                                 // File exists so let's load it
 104                                 $VER_BACKUP = $EXT_VERSION;
 105                                 require($file);
 106                                 $EXT_VERSION = $VER_BACKUP;
 107
 108                                 // If versions mismatch update extension first
 109                                 $ext_ver = GET_EXT_VERSION($EXT_UPDATE_DEPENDS);
 110                                 if (empty($ext_ver))
 111                                 {
 112                                         // Extension not registered so far so first load task's ID...
 113                                         $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_task_system WHERE task_type='EXTENSION' AND subject LIKE '[%s:]%%' LIMIT 1",
 114                                          array($EXT_UPDATE_DEPENDS), __FILE__, __LINE__);
 115                                         if (SQL_NUMROWS($result) == 1)
 116                                         {
 117                                                 // Task found so load task's ID and register extension...
 118                                                 list($task) = SQL_FETCHROW($result);
 119                                                 SQL_FREERESULT($result);
 120                                                 $test = EXTENSION_REGISTER($EXT_UPDATE_DEPENDS, $task, $dry_run);
 121                                         }
 122                                 }
 123                                  elseif ($ext_ver != $EXT_VERSION)
 124                                 {
 125                                         // Ok, update this extension now
 126                                         EXTENSION_UPDATE(basename($file), $EXT_UPDATE_DEPENDS, $ext_ver, $dry_run);
 127
 128                                         // All okay!
 129                                         $test = true;
 130                                 }
 131                                  else
 132                                 {
 133                                         // Nothing to register / update before...
 134                                         $test = true;
 135                                 }
 136                         }
 137                          else
 138                         {
 139                                 // Required file for update does not exists!
 140                                 $test = true;
 141                                 // But this is fine for the first time...
 142                         }
 143
 144                         // Finally restore previous SQLs
 145                         $SQLs = $SQLs2; unset($SQLs2);
 146                         $EXT_LANG_PREFIX = $LANG_BCK;
 147                 }
 148                  else
 149                 {
 150                         // Does not depend on an other extension
 151                         $test = true;
 152                 }
 153
 154                 // Switch back to register mode
 155                 $EXT_LOAD_MODE = "register";
 156
 157                 // Does everthing before wents ok?
 158                 if ($test) {
 159                         // "Dry-run-mode" activated?
 160                         if (!$dry_run) {
 161                                 // Run all SQLs
 162                                 foreach ($SQLs as $sql) {
 163                                         // Trim spaces away which we don't need
 164                                         $sql = trim($sql);
 165
 166                                         // Is there still an SQL query?
 167                                         if (!empty($sql)) {
 168                                                 // Do we have an "ALTER TABLE" command?
 169                                                 if (substr(strtolower($sql), 0, 11) == "alter table") {
 170                                                         // Analyse the alteration command
 171                                                         SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
 172                                                 } else {
 173                                                         // Run regular SQL command
 174                                                         $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
 175                                                 }
 176                                         } // END - if
 177                                 } // END - foreach
 178
 179                                 // Remove cache file(s) if extension is active
 180                                 if ((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) {
 181                                         //* DEBUG: */ echo __LINE__.": DESTROY!<br />\n";
 182                                         // Remove cache files
 183                                         if ($cacheInstance->cache_file("extensions", true)) $cacheInstance->cache_destroy();
 184                                         if ($cacheInstance->cache_file("mod_reg", true))    $cacheInstance->cache_destroy();
 185                                         if ($cacheInstance->cache_file("config", true))     $cacheInstance->cache_destroy();
 186                                 } // END - if
 187
 188                                 // Check for added include files
 189                                 if (count($INC_POOL > 0)) {
 190                                         // Loads every include file
 191                                         foreach ($INC_POOL as $inc) {
 192                                                 require_once($inc);
 193                                         } // END - foreach
 194                                 }
 195
 196                                 // Register extension
 197                                 $result = SQL_QUERY_ESC("INSERT INTO "._MYSQL_PREFIX."_extensions (ext_name, ext_lang_file, ext_active, ext_version) VALUES ('%s', '%s', '%s', '%s')",
 198                                  array($ext_name, $EXT_LANG_PREFIX, $EXT_ALWAYS_ACTIVE, $EXT_VERSION), __FILE__, __LINE__);
 199
 200                                 // Update task management
 201                                 ADMIN_SOLVE_TASK($id);
 202
 203                                 // In normal mode return a true on success
 204                                 $ret = true; unset($SQLs);
 205                         } else {
 206                                 // Rewrite SQL command to keep { and } inside
 207                                 foreach ($SQLs as $key => $sql) {
 208                                         $sql = str_replace('{', "&#123;", str_replace('}', "&#125;", $sql));
 209                                         $SQLs[$key] = $sql;
 210                                 } // END - foreach
 211
 212                                 // In  "dry-run" mode return array with all SQL commands
 213                                 $ret = $SQLs;
 214
 215                                 // Remove all SQL commands
 216                                 unset($SQLs);
 217                         }
 218                 } else {
 219                         // No, an error occurs while registering extension :-(
 220                         $ret = false;
 221                 }
 222         } elseif (($id > 0) && (!empty($ext_name))) {
 223                 // Remove task from system when id and extension's name is valid
 224                 $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_task_system WHERE id=%s AND status='NEW' LIMIT 1",
 225                  array(bigintval($id)), __FILE__, __LINE__);
 226         }
 227
 228         // Is this the sql_patches?
 229         //* DEBUG: */ echo __LINE__.":{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
 230         if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove")) && (!$dry_run) && ($test)) {
 231                 // Then redirect to logout
 232                 //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
 233                 LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
 234         } // END - if
 235
 236         // Return status code
 237         return $ret;
 238 }
 239 //
 240 function EXTENSION_RUN_SQLS($id, $EXT_LOAD_MODE) {
 241         global $cacheInstance;
 242         $SQLs = array();
 243
 244         // By default no SQL has been executed
 245         $sqlRan = false;
 246
 247         // This shall never do a non-admin user!
 248         if (!IS_ADMIN()) return false;
 249
 250         // Get extension's name
 251         $ext_name = GET_EXT_NAME($id);
 252         if (empty($ext_name)) return false;
 253
 254         // Load extension in detected mode
 255         //* DEBUG: */ echo __FUNCTION__.":ext_name[{$id}]={$ext_name}<br />\n";
 256         $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
 257         if (FILE_READABLE($file)) {
 258                 // Load the include
 259                 require($file);
 260         }
 261
 262         //* DEBUG: */ echo __FUNCTION__.":SQLs::count=".count($SQLs)."<br />\n";
 263         if ((is_array($SQLs) && (sizeof($SQLs) > 0))) {
 264                 // Run SQL commands...
 265                 foreach ($SQLs as $sql) {
 266                         // Trim spaces away which we don't need
 267                         $sql = trim($sql);
 268
 269                         // Is there still an SQL query?
 270                         if (!empty($sql)) {
 271                                 // Do we have an "ALTER TABLE" command?
 272                                 //* DEBUG: */ echo __FUNCTION__.":SQL={$SQL}<br />\n";
 273                                 if (substr(strtolower($sql), 0, 11) == "alter table") {
 274                                         // Analyse the alteration command
 275                                         SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
 276                                 } else {
 277                                         // Run regular SQL command
 278                                         $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
 279                                 }
 280
 281                                 // An SQL has been executed
 282                                 $sqlRan = true;
 283                         } // END - if
 284                 } // END - foreach
 285
 286                 // Removal mode?
 287                 if ($EXT_LOAD_MODE == "remove") {
 288                         // Delete this extension (remember to remove it from your server *before* you click on welcome!
 289                         $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
 290                          array($id), __FILE__, __LINE__);
 291                 } // END - if
 292
 293                 //* DEBUG: */ echo __FUNCTION__.":mode={$EXT_LOAD_MODE}<br />\n";
 294
 295                 // Remove cache file(s) if extension is active
 296                 if (((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) && (((SQL_AFFECTEDROWS() == 1) && ($EXT_LOAD_MODE == "remove")) || ($sqlRan === true))) {
 297                         //* DEBUG: */ echo __LINE__.": DESTROY!<br />\n";
 298                         // Remove cache files
 299                         if ($cacheInstance->cache_file("extensions", true)) $cacheInstance->cache_destroy();
 300                         if ($cacheInstance->cache_file("mod_reg", true))    $cacheInstance->cache_destroy();
 301                         if ($cacheInstance->cache_file("config", true))     $cacheInstance->cache_destroy();
 302                 } // END - if
 303
 304                 // Is this the sql_patches?
 305                 //* DEBUG: */ echo __LINE__.": {$id}/{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
 306                 if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove"))) {
 307                         // Then redirect to logout
 308                         //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
 309                         LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
 310                 } // END - if
 311         } // END - if
 312 }
 313 // Check if given extension is active
 314 function EXT_IS_ACTIVE ($ext_name, $ignore_admin = false, $ignore_cache = false) {
 315         global $cacheArray, $_CONFIG;
 316
 317         // Extensions are all inactive during installation
 318         if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing')) || (empty($ext_name))) return false;
 319
 320         // Extension's file name will also be checked
 321         $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
 322         if (!FILE_READABLE($file)) return false;
 323         //* DEBUG: */ echo "*".$ext_name."(".count($cacheArray).")<br />";
 324
 325         // Not active is the default
 326         $active = "N";
 327
 328         // Check cache
 329         if ((!empty($cacheArray['extensions']['ext_active'][$ext_name])) && (!$ignore_cache)) {
 330                 // Load from cache
 331                 //* DEBUG: */ echo "CACHE!<br />\n";
 332                 $active = $cacheArray['extensions']['ext_active'][$ext_name];
 333
 334                 // Count cache hits
 335                 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++;
 336         } elseif (($ext_name == "cache") || (GET_EXT_VERSION("cache") == "")) {
 337                 //* DEBUG: */ echo "DB!<br />\n";
 338                 // Load from database
 339                 $result = SQL_QUERY_ESC("SELECT ext_active FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 340                  array($ext_name), __FILE__, __LINE__);
 341                 if (SQL_NUMROWS($result) == 0) {
 342                         // Extension was not found!
 343                         return false;
 344                 }
 345                 list($active) = SQL_FETCHROW($result);
 346                 //* DEBUG: */ echo $ext_name."[DB]: {$active}<br />\n";
 347                 SQL_FREERESULT($result);
 348
 349                 // Write cache array
 350                 $cacheArray['extensions']['ext_active'][$ext_name] = $active;
 351         } else {
 352                 // Extension not active!
 353                 //* DEBUG: */ echo $ext_name.": Not active!<br />\n";
 354                 $cacheArray['extensions']['ext_active'][$ext_name] = "N";
 355         }
 356
 357         // Create FQFN for extension file
 358         $inc = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
 359
 360         // Debug message
 361         //DEBUG_LOG(__FUNCTION__.": ext_name={$ext_name},active={$active}");
 362
 363         // Is this extension activated? (For admins we always have active extensions...)
 364         return (
 365                 (
 366                         $active == "Y"
 367                 ) && (
 368                         FILE_READABLE($inc)
 369                 )
 370         );
 371 }
 372 // Get version from extensions
 373 function GET_EXT_VERSION ($ext_name) {
 374         global $cacheArray, $_CONFIG, $cacheInstance;
 375         $ret = false;
 376
 377         // Extensions are all inactive during installation
 378         if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing'))) return "";
 379         //* DEBUG: */ echo __FUNCTION__.": ext_name={$ext_name}<br />\n";
 380
 381         // Is the cache written?
 382         if (!empty($cacheArray['extensions']['ext_version'][$ext_name])) {
 383                 // Load data from cache
 384                 //* DEBUG: */ echo __FUNCTION__.": CACHE!<br />\n";
 385                 $ret = $cacheArray['extensions']['ext_version'][$ext_name];
 386
 387                 // Count cache hits
 388                 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++; else $_CONFIG['cache_hits'] = 1;
 389         } elseif (!is_object($cacheInstance)) {
 390                 // Load from database
 391                 $result = SQL_QUERY_ESC("SELECT ext_version FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 392                  array($ext_name), __FILE__, __LINE__);
 393                 list($ret) = SQL_FETCHROW($result);
 394                 SQL_FREERESULT($result);
 395
 396                 // Set cache
 397                 $cacheArray['extensions']['ext_version'][$ext_name] = $ret;
 398         }
 399
 400         // Return result
 401         //* DEBUG: */ echo __FUNCTION__.": ret={$ret}<br />\n";
 402         return $ret;
 403 }
 404 //
 405 function EXTENSION_UPDATE($file, $ext, $EXT_VER, $dry_run=false)
 406 {
 407         // This shall never do a non-admin user!
 408         global $cacheInstance, $_CONFIG, $NOTES; $SQLs = array();
 409         if ((!IS_ADMIN()) || (empty($ext))) return false;
 410
 411         // Load extension in update mode
 412         $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = ""; $NOTES = "";
 413         include(PATH."inc/extensions/".$file);
 414         if (!empty($EXT_UPDATE_DEPENDS))
 415         {
 416                 // Update another extension first!
 417                 $test = EXTENSION_UPDATE(("ext-".$EXT_UPDATE_DEPENDS.".php"), $EXT_UPDATE_DEPENDS, GET_EXT_VERSION($EXT_UPDATE_DEPENDS), $dry_run);
 418         }
 419
 420         // Check if version is updated
 421         if ((($EXT_VERSION != $EXT_VER) || ($dry_run)) && (is_array($EXT_VER_HISTORY)))
 422         {
 423                 // Search for starting point
 424                 $start = array_search($EXT_VER, $EXT_VER_HISTORY);
 425                 $NOTES = "";
 426
 427                 // And load SQL queries in order of version history
 428                 for ($idx = ($start + 1); $idx < sizeof($EXT_VER_HISTORY); $idx++)
 429                 {
 430                         // Remove old SQLs array to prevent possible bugs
 431                         if (!$dry_run) { unset($SQLs); $SQLs = array(); }
 432
 433                         // Set version
 434                         $EXT_VER = $EXT_VER_HISTORY[$idx];
 435
 436                         // Include again...
 437                         include(PATH."inc/extensions/".$file);
 438
 439                         // Add notes
 440                         if ($_CONFIG['verbose_sql'] == "Y")
 441                         {
 442                                 $EXT_VER = $EXT_VER_HISTORY[$idx];
 443                                 if (!empty($UPDATE_NOTES))
 444                                 {
 445                                         // Update notes found
 446                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
 447                                         $UPDATE_NOTES = "";
 448                                 }
 449                                  elseif ($EXT_VER == "0.0")
 450                                 {
 451                                         // Initial release
 452                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
 453                                 }
 454                                  else
 455                                 {
 456                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
 457                                 }
 458                         }
 459
 460                         // Run SQLs
 461                         if ((is_array($SQLs)) && (!$dry_run))
 462                         {
 463                                 // Run SQL commands
 464                                 foreach ($SQLs as $sql)
 465                                 {
 466                                         $sql = trim($sql);
 467                                         if (!empty($sql))
 468                                         {
 469                                                 // Do we have an "ALTER TABLE" command?
 470                                                 if (substr(strtolower($sql), 0, 11) == "alter table") {
 471                                                         // Analyse the alteration command
 472                                                         SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
 473                                                 } else {
 474                                                         // Run regular SQL command
 475                                                         $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
 476                                                 }
 477                                         }
 478                                 }
 479                         } elseif (GET_EXT_VERSION("sql_patches") == "") {
 480                                 // Remove SQLs if extension is not installed
 481                                 $SQLs = array();
 482                         }
 483                 }
 484
 485                 if (!$dry_run)
 486                 {
 487                         // In normal mode insert task and update extension's version...
 488                         $ext_subj = "[UPDATE-".$ext."-".$EXT_VERSION.":] ".ADMIN_UPDATE_EXT_SUBJ;
 489
 490                         // Create task
 491                         CREATE_EXTENSION_UPDATE_TASK(GET_ADMIN_ID(get_session('admin_login')), $ext_subj, addslashes($NOTES));
 492
 493                         // Update extension's version
 494                         $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_extensions SET ext_version='%s' WHERE ext_name='%s' LIMIT 1",
 495                          array($EXT_VERSION, $ext), __FILE__, __LINE__);
 496
 497                         // Update cache
 498                         if (EXT_IS_ACTIVE("cache")) {
 499                                 if ($cacheInstance->cache_file("extensions", true) == true) $cacheInstance->cache_destroy();
 500                                 if ($cacheInstance->cache_file("config", true) == true)     $cacheInstance->cache_destroy();
 501                                 if ($cacheInstance->cache_file("mod_reg", true) == true)    $cacheInstance->cache_destroy();
 502                         } // END - if
 503
 504                         // Remove array
 505                         unset($SQLs);
 506                 } else {
 507                         // In "dry-run" mode return array with SQL commands
 508                         return $SQLs;
 509                 }
 510         }
 511 }
 512 //
 513 function EXTENSION_VERBOSE_TABLE($SQLs, $title = ADMIN_SQLS_EXECUTED_ON_REMOVAL, $dashed = "", $switch = false, $WIDTH = "480") {
 514         global $_CONFIG;
 515
 516         $S = false; $SW = 2; $i = 1;
 517         $OUT = "";
 518         if ((is_array($SQLs)) && (GET_EXT_VERSION("sql_patches")) && ($_CONFIG['verbose_sql'] == "Y")) {
 519                 $OUT  = "<DIV align=\"center\">
 520 <TABLE border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"".$WIDTH."\" align=\"center\"".$dashed.">
 521 <TR>
 522   <TD colspan=\"2\" align=\"center\" class=\"admin_title bottom2\" height=\"24\">
 523     <STRONG>".$title.":</STRONG>
 524   </TD>
 525 </TR>\n";
 526                 foreach ($SQLs as $idx => $sql) {
 527                         $sql = trim($sql);
 528                         if (!empty($sql)) {
 529                                 $S = true;
 530                                 $OUT .= "<TR>
 531   <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 2px\" width=\"30\">".$i.".</TD>
 532   <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 5px; padding-right: 5px\">
 533     ".$sql."
 534   </TD>
 535 </TR>\n";
 536                                 if ($switch) $SW = 3 - $SW;
 537                                 $i++;
 538                         }
 539                 }
 540         }
 541
 542         if ((!$S) && (GET_EXT_VERSION("sql_patches")) && ($_CONFIG['verbose_sql'] == "Y")) {
 543                 // No addional SQL commands to run
 544                 $OUT .= "<TR>
 545   <TD colspan=\"2\" align=\"center\" class=\"switch_sw2 bottom2\" height=\"24\">
 546     <FONT class=\"admin_note\">".ADMIN_NO_ADDIONAL_SQLS."</FONT>
 547   </TD>
 548 </TR>\n";
 549         }
 550
 551         if (!empty($OUT)) {
 552                 // Add missing close-table tag
 553                 $OUT .= "</TABLE>
 554 </DIV>\n";
 555         }
 556
 557         // Return output
 558         return $OUT;
 559 }
 560 // Get extension name from id
 561 function GET_EXT_NAME ($id) {
 562         $ret = "";
 563         global $cacheArray, $_CONFIG;
 564         if (!empty($cacheArray['extensions']['ext_name'][$id])) {
 565                 // Load from cache
 566                 $ret = $cacheArray['extensions']['ext_name'][$id];
 567
 568                 // Count cache hits
 569                 $_CONFIG['cache_hits']++;
 570         } elseif (!EXT_IS_ACTIVE("cache")) {
 571                 // Load from database
 572                 $result = SQL_QUERY_ESC("SELECT ext_name FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
 573                  array(bigintval($id)), __FILE__, __LINE__);
 574                 list($ret) = SQL_FETCHROW($result);
 575                 SQL_FREERESULT($result);
 576         }
 577         return $ret;
 578 }
 579 // Get extension id from name
 580 function GET_EXT_ID($name) {
 581         $ret = 0;
 582         global $cacheArray, $_CONFIG;
 583         if (isset($cacheArray['extensions']['ext_id'][$name])) {
 584                 // Load from cache
 585                 $ret = $cacheArray['extensions']['ext_id'][$name];
 586
 587                 // Count cache hits
 588                 $_CONFIG['cache_hits']++;
 589         } elseif (!EXT_IS_ACTIVE("cache")) {
 590                 // Load from database
 591                 $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 592                  array($name), __FILE__, __LINE__);
 593                 list($ret) = SQL_FETCHROW($result);
 594                 SQL_FREERESULT($result);
 595         }
 596
 597         // Return value
 598         return $ret;
 599 }
 600 //
 601 ?>