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, $ext_name);
  56
  57         // Does this extension exists?
  58         if (file_exists($file) && is_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, $EXT_UPDATE_DEPENDS);
  99
 100                         // Check for required file
 101                         if (file_exists($file) && is_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                                 $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_task_system SET status='SOLVED' WHERE id=%s LIMIT 1",
 202                                  array(bigintval($id)), __FILE__, __LINE__);
 203
 204                                 // In normal mode return a true on success
 205                                 $ret = true; unset($SQLs);
 206                         } else {
 207                                 // Rewrite SQL command to keep { and } inside
 208                                 foreach ($SQLs as $key => $sql) {
 209                                         $sql = str_replace('{', "&#123;", str_replace('}', "&#125;", $sql));
 210                                         $SQLs[$key] = $sql;
 211                                 } // END - foreach
 212
 213                                 // In  "dry-run" mode return array with all SQL commands
 214                                 $ret = $SQLs;
 215
 216                                 // Remove all SQL commands
 217                                 unset($SQLs);
 218                         }
 219                 } else {
 220                         // No, an error occurs while registering extension :-(
 221                         $ret = false;
 222                 }
 223         } elseif (($id > 0) && (!empty($ext_name))) {
 224                 // Remove task from system when id and extension's name is valid
 225                 $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_task_system WHERE id=%s AND status='NEW' LIMIT 1",
 226                  array(bigintval($id)), __FILE__, __LINE__);
 227         }
 228
 229         // Is this the sql_patches?
 230         //* DEBUG: */ echo __LINE__.":{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
 231         if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove")) && (!$dry_run) && ($test)) {
 232                 // Then redirect to logout
 233                 //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
 234                 LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
 235         } // END - if
 236
 237         // Return status code
 238         return $ret;
 239 }
 240 //
 241 function EXTENSION_RUN_SQLS($id, $EXT_LOAD_MODE) {
 242         global $cacheInstance;
 243         $SQLs = array();
 244
 245         // This shall never do a non-admin user!
 246         if (!IS_ADMIN()) return false;
 247
 248         // Get extension's name
 249         $ext_name = GET_EXT_NAME($id);
 250         if (empty($ext_name)) return false;
 251
 252         // Load extension in detected mode
 253         $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
 254         if (file_exists($file) && is_readable($file)) require($file);
 255
 256         if ((is_array($SQLs) && (sizeof($SQLs) > 0))) {
 257                 // Run SQL commands...
 258                 foreach ($SQLs as $sql) {
 259                         // Trim spaces away which we don't need
 260                         $sql = trim($sql);
 261
 262                         // Is there still an SQL query?
 263                         if (!empty($sql)) {
 264                                 // Do we have an "ALTER TABLE" command?
 265                                 if (substr(strtolower($sql), 0, 11) == "alter table") {
 266                                         // Analyse the alteration command
 267                                         SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
 268                                 } else {
 269                                         // Run regular SQL command
 270                                         $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
 271                                 }
 272                         } // END - if
 273                 } // END - foreach
 274
 275                 // Removal mode?
 276                 if ($EXT_LOAD_MODE == "remove") {
 277                         // Delete this extension (remember to remove it from your server *before* you click on welcome!
 278                         $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
 279                          array($id), __FILE__, __LINE__);
 280                 } // END - if
 281
 282                 // Remove cache file(s) if extension is active
 283                 if ((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) {
 284                         //* DEBUG: */ echo __LINE__.": DESTROY!<br />\n";
 285                         // Remove cache files
 286                         if ($cacheInstance->cache_file("extensions", true)) $cacheInstance->cache_destroy();
 287                         if ($cacheInstance->cache_file("mod_reg", true))    $cacheInstance->cache_destroy();
 288                         if ($cacheInstance->cache_file("config", true))     $cacheInstance->cache_destroy();
 289                 } // END - if
 290
 291                 // Is this the sql_patches?
 292                 //* DEBUG: */ echo __LINE__.": {$id}/{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
 293                 if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove"))) {
 294                         // Then redirect to logout
 295                         //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
 296                         LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
 297                 } // END - if
 298         } // END - if
 299 }
 300 // Check if given extension is active
 301 function EXT_IS_ACTIVE ($ext_name, $ignore_admin = false, $ignore_cache = false) {
 302         global $cacheArray, $_CONFIG;
 303
 304         // Extensions are all inactive during installation
 305         if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing')) || (empty($ext_name))) return false;
 306
 307         // Extension's file name will also be checked
 308         $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
 309         if ((!file_exists($file)) && (!is_readable($file))) return false;
 310         //* DEBUG: */ echo "*".$ext_name."(".count($cacheArray).")<br />";
 311
 312         // Failed is the default
 313         $ret = false;
 314         if ((!empty($cacheArray['extensions']['ext_active'][$ext_name])) && (!$ignore_cache)) {
 315                 // Load from cache
 316                 //* DEBUG: */ echo "CACHE!<br />\n";
 317                 $active = $cacheArray['extensions']['ext_active'][$ext_name];
 318
 319                 // Count cache hits
 320                 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++;
 321         } else {
 322                 //* DEBUG: */ echo "DB!<br />\n";
 323                 // Load from database
 324                 $result = SQL_QUERY_ESC("SELECT ext_active FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 325                  array($ext_name), __FILE__, __LINE__);
 326                 if (SQL_NUMROWS($result) == 0) {
 327                         // Extension was not found!
 328                         return false;
 329                 }
 330                 list($active) = SQL_FETCHROW($result);
 331                 SQL_FREERESULT($result);
 332
 333                 // Write cache array
 334                 $cacheArray['extensions']['ext_active'][$ext_name] = $active;
 335         }
 336
 337         // Is this extension activated? (For admins we always have active extensions...)
 338         $inc = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
 339         // Shorter way
 340         return (
 341                 (
 342                         ($active == "Y") || (
 343                                 (IS_ADMIN()) &&
 344                                 (!$ignore_admin) &&
 345                                 (!empty($active))
 346                         )
 347                 ) && (
 348                         file_exists($inc)
 349                 ) && (
 350                         is_readable($inc)
 351                 )
 352         );
 353 }
 354 // Get version from extensions
 355 function GET_EXT_VERSION ($ext_name) {
 356         global $cacheArray, $_CONFIG, $cacheInstance;
 357         $ret = false;
 358
 359         // Extensions are all inactive during installation
 360         if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing'))) return "";
 361
 362         // Is the cache written?
 363         if (!empty($cacheArray['extensions']['ext_version'][$ext_name])) {
 364                 // Load data from cache
 365                 $ret = $cacheArray['extensions']['ext_version'][$ext_name];
 366
 367                 // Count cache hits
 368                 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++; else $_CONFIG['cache_hits'] = 1;
 369         } elseif (!is_object($cacheInstance)) {
 370                 // Load from database
 371                 $result = SQL_QUERY_ESC("SELECT ext_version FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 372                  array($ext_name), __FILE__, __LINE__);
 373                 list($ret) = SQL_FETCHROW($result);
 374                 SQL_FREERESULT($result);
 375
 376                 // Set cache
 377                 $cacheArray['extensions']['ext_version'][$ext_name] = $ret;
 378         }
 379         return $ret;
 380 }
 381 //
 382 function EXTENSION_UPDATE($file, $ext, $EXT_VER, $dry_run=false)
 383 {
 384         // This shall never do a non-admin user!
 385         global $cacheInstance, $_CONFIG, $NOTES; $SQLs = array();
 386         if ((!IS_ADMIN()) || (empty($ext))) return false;
 387
 388         // Load extension in update mode
 389         $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = ""; $NOTES = "";
 390         include(PATH."inc/extensions/".$file);
 391         if (!empty($EXT_UPDATE_DEPENDS))
 392         {
 393                 // Update another extension first!
 394                 $test = EXTENSION_UPDATE(("ext-".$EXT_UPDATE_DEPENDS.".php"), $EXT_UPDATE_DEPENDS, GET_EXT_VERSION($EXT_UPDATE_DEPENDS), $dry_run);
 395         }
 396
 397         // Check if version is updated
 398         if ((($EXT_VERSION != $EXT_VER) || ($dry_run)) && (is_array($EXT_VER_HISTORY)))
 399         {
 400                 // Search for starting point
 401                 $start = array_search($EXT_VER, $EXT_VER_HISTORY);
 402                 $NOTES = "";
 403
 404                 // And load SQL queries in order of version history
 405                 for ($idx = ($start + 1); $idx < sizeof($EXT_VER_HISTORY); $idx++)
 406                 {
 407                         // Remove old SQLs array to prevent possible bugs
 408                         if (!$dry_run) { unset($SQLs); $SQLs = array(); }
 409
 410                         // Set version
 411                         $EXT_VER = $EXT_VER_HISTORY[$idx];
 412
 413                         // Include again...
 414                         include(PATH."inc/extensions/".$file);
 415
 416                         // Add notes
 417                         if ($_CONFIG['verbose_sql'] == "Y")
 418                         {
 419                                 $EXT_VER = $EXT_VER_HISTORY[$idx];
 420                                 if (!empty($UPDATE_NOTES))
 421                                 {
 422                                         // Update notes found
 423                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
 424                                         $UPDATE_NOTES = "";
 425                                 }
 426                                  elseif ($EXT_VER == "0.0")
 427                                 {
 428                                         // Initial release
 429                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
 430                                 }
 431                                  else
 432                                 {
 433                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
 434                                 }
 435                         }
 436
 437                         // Run SQLs
 438                         if ((is_array($SQLs)) && (!$dry_run))
 439                         {
 440                                 // Run SQL commands
 441                                 foreach ($SQLs as $sql)
 442                                 {
 443                                         $sql = trim($sql);
 444                                         if (!empty($sql))
 445                                         {
 446                                                 // Do we have an "ALTER TABLE" command?
 447                                                 if (substr(strtolower($sql), 0, 11) == "alter table") {
 448                                                         // Analyse the alteration command
 449                                                         SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
 450                                                 } else {
 451                                                         // Run regular SQL command
 452                                                         $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
 453                                                 }
 454                                         }
 455                                 }
 456                         } elseif (GET_EXT_VERSION("sql_patches") == "") {
 457                                 // Remove SQLs if extension is not installed
 458                                 $SQLs = array();
 459                         }
 460                 }
 461
 462                 if (!$dry_run)
 463                 {
 464                         // In normal mode insert task and update extension's version...
 465                         $ext_subj = "[UPDATE-".$ext."-".$EXT_VERSION.":] ".ADMIN_UPDATE_EXT_SUBJ;
 466
 467                         // Create task
 468                         $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_task_system WHERE subject='%s' LIMIT 1",
 469                          array($ext_subj), __FILE__, __LINE__);
 470                         if (SQL_NUMROWS($result) == 0)
 471                         {
 472                                 // Task not created so it's a brand-new extension which we need to register and create a task for!
 473                                 $result = SQL_QUERY_ESC("INSERT INTO "._MYSQL_PREFIX."_task_system (assigned_admin, userid, status, task_type, subject, text, task_created) VALUES ('%s', '0', 'NEW', 'EXTENSION_UPDATE', '%s', '%s', UNIX_TIMESTAMP())",
 474                                  array(GET_ADMIN_ID(SQL_ESCAPE(get_session('admin_login'))), $ext_subj, addslashes($NOTES)), __FILE__, __LINE__);
 475                         }
 476
 477                         // Free memory
 478                         SQL_FREERESULT($result);
 479
 480                         // Update extension's version
 481                         $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_extensions SET ext_version='%s' WHERE ext_name='%s' LIMIT 1",
 482                          array($EXT_VERSION, $ext), __FILE__, __LINE__);
 483
 484                         // Update cache
 485                         if (EXT_IS_ACTIVE("cache"))
 486                         {
 487                                 if ($cacheInstance->cache_file("extensions", true) == true) $cacheInstance->cache_destroy();
 488                                 if ($cacheInstance->cache_file("config", true) == true)     $cacheInstance->cache_destroy();
 489                                 if ($cacheInstance->cache_file("mod_reg", true) == true)    $cacheInstance->cache_destroy();
 490                         }
 491
 492                         // Remove array
 493                         unset($SQLs);
 494                 }
 495                  else
 496                 {
 497                         // In "dry-run" mode return array with SQL commands
 498                         return $SQLs;
 499                 }
 500         }
 501 }
 502 //
 503 function EXTENSION_VERBOSE_TABLE($SQLs, $title = ADMIN_SQLS_EXECUTED_ON_REMOVAL, $dashed = "", $switch = false, $WIDTH = "480") {
 504         global $_CONFIG;
 505
 506         $S = false; $SW = 2; $i = 1;
 507         $OUT = "";
 508         if ((is_array($SQLs)) && (GET_EXT_VERSION("sql_patches")) && ($_CONFIG['verbose_sql'] == "Y")) {
 509                 $OUT  = "<DIV align=\"center\">
 510 <TABLE border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"".$WIDTH."\" align=\"center\"".$dashed.">
 511 <TR>
 512   <TD colspan=\"2\" align=\"center\" class=\"admin_title bottom2\" height=\"24\">
 513     <STRONG>".$title.":</STRONG>
 514   </TD>
 515 </TR>\n";
 516                 foreach ($SQLs as $idx => $sql) {
 517                         $sql = trim($sql);
 518                         if (!empty($sql)) {
 519                                 $S = true;
 520                                 $OUT .= "<TR>
 521   <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 2px\" width=\"30\">".$i.".</TD>
 522   <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 5px; padding-right: 5px\">
 523     ".$sql."
 524   </TD>
 525 </TR>\n";
 526                                 if ($switch) $SW = 3 - $SW;
 527                                 $i++;
 528                         }
 529                 }
 530         }
 531
 532         if ((!$S) && (GET_EXT_VERSION("sql_patches")) && ($_CONFIG['verbose_sql'] == "Y")) {
 533                 // No addional SQL commands to run
 534                 $OUT .= "<TR>
 535   <TD colspan=\"2\" align=\"center\" class=\"switch_sw2 bottom2\" height=\"24\">
 536     <FONT class=\"admin_note\">".ADMIN_NO_ADDIONAL_SQLS."</FONT>
 537   </TD>
 538 </TR>\n";
 539         }
 540
 541         if (!empty($OUT)) {
 542                 // Add missing close-table tag
 543                 $OUT .= "</TABLE>
 544 </DIV>\n";
 545         }
 546
 547         // Return output
 548         return $OUT;
 549 }
 550 //
 551 function GET_EXT_NAME($id)
 552 {
 553         $ret = "";
 554         global $cacheArray, $_CONFIG;
 555         if (!empty($cacheArray['extensions']['ext_id'][$id]))
 556         {
 557                 // Load from cache
 558                 $ret = $cacheArray['extensions']['ext_id'][$id];
 559
 560                 // Count cache hits
 561                 $_CONFIG['cache_hits']++;
 562         }
 563          else
 564         {
 565                 // Load from database
 566                 $result = SQL_QUERY_ESC("SELECT ext_name FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
 567                  array(bigintval($id)), __FILE__, __LINE__);
 568                 list($ret) = SQL_FETCHROW($result);
 569                 SQL_FREERESULT($result);
 570         }
 571         return $ret;
 572 }
 573 //
 574 function GET_EXT_ID($name)
 575 {
 576         $ret = "0";
 577         global $cacheArray, $_CONFIG;
 578         if ((isset($cacheArray['extensions']['ext_id'])) && (is_array($cacheArray['extensions']['ext_id'])))
 579         {
 580                 // Load from cache
 581                 $ret = array_search($name, $cacheArray['extensions']['ext_id']);
 582
 583                 // Count cache hits
 584                 $_CONFIG['cache_hits']++;
 585         }
 586          else
 587         {
 588                 // Load from database
 589                 $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 590                  array($name), __FILE__, __LINE__);
 591                 list($ret) = SQL_FETCHROW($result);
 592                 SQL_FREERESULT($result);
 593         }
 594         return $ret;
 595 }
 596 //
 597 ?>