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, $EXT_VERSION), __FILE__, __LINE__);
 199
 200                                 // Update task management
 201                                 ADMIN_SOLVE_TASK($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, $ext_name);
 257         if (file_exists($file) && is_readable($file)) require($file);
 258
 259         //* DEBUG: */ echo __FUNCTION__.":SQLs::count=".count($SQLs)."<br />\n";
 260         if ((is_array($SQLs) && (sizeof($SQLs) > 0))) {
 261                 // Run SQL commands...
 262                 foreach ($SQLs as $sql) {
 263                         // Trim spaces away which we don't need
 264                         $sql = trim($sql);
 265
 266                         // Is there still an SQL query?
 267                         if (!empty($sql)) {
 268                                 // Do we have an "ALTER TABLE" command?
 269                                 //* DEBUG: */ echo __FUNCTION__.":SQL={$SQL}<br />\n";
 270                                 if (substr(strtolower($sql), 0, 11) == "alter table") {
 271                                         // Analyse the alteration command
 272                                         SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
 273                                 } else {
 274                                         // Run regular SQL command
 275                                         $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
 276                                 }
 277
 278                                 // An SQL has been executed
 279                                 $sqlRan = true;
 280                         } // END - if
 281                 } // END - foreach
 282
 283                 // Removal mode?
 284                 if ($EXT_LOAD_MODE == "remove") {
 285                         // Delete this extension (remember to remove it from your server *before* you click on welcome!
 286                         $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
 287                          array($id), __FILE__, __LINE__);
 288                 } // END - if
 289
 290                 //* DEBUG: */ echo __FUNCTION__.":mode={$EXT_LOAD_MODE}<br />\n";
 291
 292                 // Remove cache file(s) if extension is active
 293                 if (((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) && (((SQL_AFFECTEDROWS() == 1) && ($EXT_LOAD_MODE == "remove")) || ($sqlRan === true))) {
 294                         //* DEBUG: */ echo __LINE__.": DESTROY!<br />\n";
 295                         // Remove cache files
 296                         if ($cacheInstance->cache_file("extensions", true)) $cacheInstance->cache_destroy();
 297                         if ($cacheInstance->cache_file("mod_reg", true))    $cacheInstance->cache_destroy();
 298                         if ($cacheInstance->cache_file("config", true))     $cacheInstance->cache_destroy();
 299                 } // END - if
 300
 301                 // Is this the sql_patches?
 302                 //* DEBUG: */ echo __LINE__.": {$id}/{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
 303                 if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove"))) {
 304                         // Then redirect to logout
 305                         //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
 306                         LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
 307                 } // END - if
 308         } // END - if
 309 }
 310 // Check if given extension is active
 311 function EXT_IS_ACTIVE ($ext_name, $ignore_admin = false, $ignore_cache = false) {
 312         global $cacheArray, $_CONFIG;
 313
 314         // Extensions are all inactive during installation
 315         if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing')) || (empty($ext_name))) return false;
 316
 317         // Extension's file name will also be checked
 318         $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
 319         if ((!file_exists($file)) && (!is_readable($file))) return false;
 320         //* DEBUG: */ echo "*".$ext_name."(".count($cacheArray).")<br />";
 321
 322         // Not active is the default
 323         $active = "N";
 324
 325         // Check cache
 326         if ((!empty($cacheArray['extensions']['ext_active'][$ext_name])) && (!$ignore_cache)) {
 327                 // Load from cache
 328                 //* DEBUG: */ echo "CACHE!<br />\n";
 329                 $active = $cacheArray['extensions']['ext_active'][$ext_name];
 330
 331                 // Count cache hits
 332                 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++;
 333         } elseif (($ext_name == "cache") || (GET_EXT_VERSION("cache") == "")) {
 334                 //* DEBUG: */ echo "DB!<br />\n";
 335                 // Load from database
 336                 $result = SQL_QUERY_ESC("SELECT ext_active FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 337                  array($ext_name), __FILE__, __LINE__);
 338                 if (SQL_NUMROWS($result) == 0) {
 339                         // Extension was not found!
 340                         return false;
 341                 }
 342                 list($active) = SQL_FETCHROW($result);
 343                 //* DEBUG: */ echo $ext_name."[DB]: {$active}<br />\n";
 344                 SQL_FREERESULT($result);
 345
 346                 // Write cache array
 347                 $cacheArray['extensions']['ext_active'][$ext_name] = $active;
 348         } else {
 349                 // Extension not active!
 350                 //* DEBUG: */ echo $ext_name.": Not active!<br />\n";
 351                 $cacheArray['extensions']['ext_active'][$ext_name] = "N";
 352         }
 353
 354         // Create FQFN for extension file
 355         $inc = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
 356
 357         // Debug message
 358         //DEBUG_LOG(__FUNCTION__.": ext_name={$ext_name},active={$active}");
 359
 360         // Is this extension activated? (For admins we always have active extensions...)
 361         return (
 362                 (
 363                         $active == "Y"
 364                 ) && (
 365                         file_exists($inc)
 366                 ) && (
 367                         is_readable($inc)
 368                 )
 369         );
 370 }
 371 // Get version from extensions
 372 function GET_EXT_VERSION ($ext_name) {
 373         global $cacheArray, $_CONFIG, $cacheInstance;
 374         $ret = false;
 375
 376         // Extensions are all inactive during installation
 377         if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing'))) return "";
 378         //* DEBUG: */ echo __FUNCTION__.": ext_name={$ext_name}<br />\n";
 379
 380         // Is the cache written?
 381         if (!empty($cacheArray['extensions']['ext_version'][$ext_name])) {
 382                 // Load data from cache
 383                 //* DEBUG: */ echo __FUNCTION__.": CACHE!<br />\n";
 384                 $ret = $cacheArray['extensions']['ext_version'][$ext_name];
 385
 386                 // Count cache hits
 387                 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++; else $_CONFIG['cache_hits'] = 1;
 388         } elseif (!is_object($cacheInstance)) {
 389                 // Load from database
 390                 $result = SQL_QUERY_ESC("SELECT ext_version FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 391                  array($ext_name), __FILE__, __LINE__);
 392                 list($ret) = SQL_FETCHROW($result);
 393                 SQL_FREERESULT($result);
 394
 395                 // Set cache
 396                 $cacheArray['extensions']['ext_version'][$ext_name] = $ret;
 397         }
 398
 399         // Return result
 400         //* DEBUG: */ echo __FUNCTION__.": ret={$ret}<br />\n";
 401         return $ret;
 402 }
 403 //
 404 function EXTENSION_UPDATE($file, $ext, $EXT_VER, $dry_run=false)
 405 {
 406         // This shall never do a non-admin user!
 407         global $cacheInstance, $_CONFIG, $NOTES; $SQLs = array();
 408         if ((!IS_ADMIN()) || (empty($ext))) return false;
 409
 410         // Load extension in update mode
 411         $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = ""; $NOTES = "";
 412         include(PATH."inc/extensions/".$file);
 413         if (!empty($EXT_UPDATE_DEPENDS))
 414         {
 415                 // Update another extension first!
 416                 $test = EXTENSION_UPDATE(("ext-".$EXT_UPDATE_DEPENDS.".php"), $EXT_UPDATE_DEPENDS, GET_EXT_VERSION($EXT_UPDATE_DEPENDS), $dry_run);
 417         }
 418
 419         // Check if version is updated
 420         if ((($EXT_VERSION != $EXT_VER) || ($dry_run)) && (is_array($EXT_VER_HISTORY)))
 421         {
 422                 // Search for starting point
 423                 $start = array_search($EXT_VER, $EXT_VER_HISTORY);
 424                 $NOTES = "";
 425
 426                 // And load SQL queries in order of version history
 427                 for ($idx = ($start + 1); $idx < sizeof($EXT_VER_HISTORY); $idx++)
 428                 {
 429                         // Remove old SQLs array to prevent possible bugs
 430                         if (!$dry_run) { unset($SQLs); $SQLs = array(); }
 431
 432                         // Set version
 433                         $EXT_VER = $EXT_VER_HISTORY[$idx];
 434
 435                         // Include again...
 436                         include(PATH."inc/extensions/".$file);
 437
 438                         // Add notes
 439                         if ($_CONFIG['verbose_sql'] == "Y")
 440                         {
 441                                 $EXT_VER = $EXT_VER_HISTORY[$idx];
 442                                 if (!empty($UPDATE_NOTES))
 443                                 {
 444                                         // Update notes found
 445                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
 446                                         $UPDATE_NOTES = "";
 447                                 }
 448                                  elseif ($EXT_VER == "0.0")
 449                                 {
 450                                         // Initial release
 451                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
 452                                 }
 453                                  else
 454                                 {
 455                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
 456                                 }
 457                         }
 458
 459                         // Run SQLs
 460                         if ((is_array($SQLs)) && (!$dry_run))
 461                         {
 462                                 // Run SQL commands
 463                                 foreach ($SQLs as $sql)
 464                                 {
 465                                         $sql = trim($sql);
 466                                         if (!empty($sql))
 467                                         {
 468                                                 // Do we have an "ALTER TABLE" command?
 469                                                 if (substr(strtolower($sql), 0, 11) == "alter table") {
 470                                                         // Analyse the alteration command
 471                                                         SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
 472                                                 } else {
 473                                                         // Run regular SQL command
 474                                                         $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
 475                                                 }
 476                                         }
 477                                 }
 478                         } elseif (GET_EXT_VERSION("sql_patches") == "") {
 479                                 // Remove SQLs if extension is not installed
 480                                 $SQLs = array();
 481                         }
 482                 }
 483
 484                 if (!$dry_run)
 485                 {
 486                         // In normal mode insert task and update extension's version...
 487                         $ext_subj = "[UPDATE-".$ext."-".$EXT_VERSION.":] ".ADMIN_UPDATE_EXT_SUBJ;
 488
 489                         // Create task
 490                         CREATE_EXTENSION_UPDATE_TASK(GET_ADMIN_ID(get_session('admin_login')), $ext_subj, addslashes($NOTES));
 491
 492                         // Update extension's version
 493                         $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_extensions SET ext_version='%s' WHERE ext_name='%s' LIMIT 1",
 494                          array($EXT_VERSION, $ext), __FILE__, __LINE__);
 495
 496                         // Update cache
 497                         if (EXT_IS_ACTIVE("cache")) {
 498                                 if ($cacheInstance->cache_file("extensions", true) == true) $cacheInstance->cache_destroy();
 499                                 if ($cacheInstance->cache_file("config", true) == true)     $cacheInstance->cache_destroy();
 500                                 if ($cacheInstance->cache_file("mod_reg", true) == true)    $cacheInstance->cache_destroy();
 501                         } // END - if
 502
 503                         // Remove array
 504                         unset($SQLs);
 505                 } else {
 506                         // In "dry-run" mode return array with SQL commands
 507                         return $SQLs;
 508                 }
 509         }
 510 }
 511 //
 512 function EXTENSION_VERBOSE_TABLE($SQLs, $title = ADMIN_SQLS_EXECUTED_ON_REMOVAL, $dashed = "", $switch = false, $WIDTH = "480") {
 513         global $_CONFIG;
 514
 515         $S = false; $SW = 2; $i = 1;
 516         $OUT = "";
 517         if ((is_array($SQLs)) && (GET_EXT_VERSION("sql_patches")) && ($_CONFIG['verbose_sql'] == "Y")) {
 518                 $OUT  = "<DIV align=\"center\">
 519 <TABLE border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"".$WIDTH."\" align=\"center\"".$dashed.">
 520 <TR>
 521   <TD colspan=\"2\" align=\"center\" class=\"admin_title bottom2\" height=\"24\">
 522     <STRONG>".$title.":</STRONG>
 523   </TD>
 524 </TR>\n";
 525                 foreach ($SQLs as $idx => $sql) {
 526                         $sql = trim($sql);
 527                         if (!empty($sql)) {
 528                                 $S = true;
 529                                 $OUT .= "<TR>
 530   <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 2px\" width=\"30\">".$i.".</TD>
 531   <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 5px; padding-right: 5px\">
 532     ".$sql."
 533   </TD>
 534 </TR>\n";
 535                                 if ($switch) $SW = 3 - $SW;
 536                                 $i++;
 537                         }
 538                 }
 539         }
 540
 541         if ((!$S) && (GET_EXT_VERSION("sql_patches")) && ($_CONFIG['verbose_sql'] == "Y")) {
 542                 // No addional SQL commands to run
 543                 $OUT .= "<TR>
 544   <TD colspan=\"2\" align=\"center\" class=\"switch_sw2 bottom2\" height=\"24\">
 545     <FONT class=\"admin_note\">".ADMIN_NO_ADDIONAL_SQLS."</FONT>
 546   </TD>
 547 </TR>\n";
 548         }
 549
 550         if (!empty($OUT)) {
 551                 // Add missing close-table tag
 552                 $OUT .= "</TABLE>
 553 </DIV>\n";
 554         }
 555
 556         // Return output
 557         return $OUT;
 558 }
 559 // Get extension name from id
 560 function GET_EXT_NAME ($id) {
 561         $ret = "";
 562         global $cacheArray, $_CONFIG;
 563         if (!empty($cacheArray['extensions']['ext_name'][$id])) {
 564                 // Load from cache
 565                 $ret = $cacheArray['extensions']['ext_name'][$id];
 566
 567                 // Count cache hits
 568                 $_CONFIG['cache_hits']++;
 569         } elseif (!EXT_IS_ACTIVE("cache")) {
 570                 // Load from database
 571                 $result = SQL_QUERY_ESC("SELECT ext_name FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
 572                  array(bigintval($id)), __FILE__, __LINE__);
 573                 list($ret) = SQL_FETCHROW($result);
 574                 SQL_FREERESULT($result);
 575         }
 576         return $ret;
 577 }
 578 // Get extension id from name
 579 function GET_EXT_ID($name) {
 580         $ret = 0;
 581         global $cacheArray, $_CONFIG;
 582         if (isset($cacheArray['extensions']['ext_id'][$name])) {
 583                 // Load from cache
 584                 $ret = $cacheArray['extensions']['ext_id'][$name];
 585
 586                 // Count cache hits
 587                 $_CONFIG['cache_hits']++;
 588         } elseif (!EXT_IS_ACTIVE("cache")) {
 589                 // Load from database
 590                 $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 591                  array($name), __FILE__, __LINE__);
 592                 list($ret) = SQL_FETCHROW($result);
 593                 SQL_FREERESULT($result);
 594         }
 595
 596         // Return value
 597         return $ret;
 598 }
 599 //
 600 ?>