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 (!defined('__SECURITY')) {
  36         $INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), "/inc") + 4) . "/security.php";
  37         require($INC);
  38 }
  39
  40 //
  41 function EXTENSION_REGISTER ($ext_name, $id, $dry_run=false)
  42 {
  43         global $NOTES, $_CONFIG, $INC_POOL, $cacheInstance;
  44
  45         // We want to register an extension and registration status is by default "failed" (= false)
  46         $EXT_LOAD_MODE = "register"; $ret = false; $SQLs = array();
  47         $INC_POOL = array();
  48
  49         // This shall never do a non-admin user!
  50         if (!IS_ADMIN()) return false;
  51
  52         // By default the language prefix is the extension's name
  53         // @TODO: Do we really need this one anymore? Can't we just take $ext_name and done?
  54         $EXT_LANG_PREFIX = $ext_name;
  55
  56         // By default we have no failtures
  57         $EXT_REPORTS_FAILURE = false;
  58
  59         // Is this extension already installed?
  60         if (EXT_IS_ACTIVE($ext_name)) return false;
  61
  62         // Generate file name
  63         $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
  64
  65         // Does this extension exists?
  66         if (FILE_READABLE($file)) {
  67                 // Extension was found so we can load it in registration mode
  68                 $EXT_ALWAYS_ACTIVE = "N";
  69                 require($file);
  70
  71                 // And run possible updates
  72                 $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = "";
  73                 foreach ($EXT_VER_HISTORY as $EXT_VER) {
  74                         // Load extension in update mode
  75                         require($file);
  76
  77                         // Do we have an update?
  78                         if (((GET_EXT_VERSION("sql_patches") != "") && ($_CONFIG['verbose_sql'] == "Y")) || (!EXT_IS_ACTIVE("sql_patches"))) {
  79                                 if (!empty($UPDATE_NOTES)) {
  80                                         // Update notes found
  81                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
  82                                         $UPDATE_NOTES = "";
  83                                 } elseif (($EXT_VER == "0.0") || ($EXT_VER == "0.0.0")) {
  84                                         // Initial release
  85                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
  86                                 } else {
  87                                         // No update notes found!
  88                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
  89                                 }
  90                         } // END - if
  91                 } // END - foreach
  92
  93                 // Does this extension depends on an outstanding update of another update?
  94                 if (!empty($EXT_UPDATE_DEPENDS)) {
  95                         // Backup SQL commands and clear current
  96                         $SQLs2 = $SQLs;
  97                         $SQLs  = array();
  98                         $test  = false;
  99
 100                         // Load required extension also in update mode
 101                         $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $EXT_UPDATE_DEPENDS);
 102
 103                         // Check for required file
 104                         if (FILE_READABLE($file)) {
 105                                 // Bacup version number
 106                                 $VER_BACKUP = $EXT_VERSION;
 107
 108                                 // Backup language as well
 109                                 $LANG_BCK = $EXT_LANG_PREFIX;
 110
 111                                 // Save the Parrent $EXT_ALWAYS_ACTIVE for later!
 112                                 $EXT_ALWAYS_ACTIVE_PARRENT = $EXT_ALWAYS_ACTIVE;
 113
 114                                 // Set EXT_ALWAYS_ACTIVE for update
 115                                 $EXT_ALWAYS_ACTIVE = "N";
 116
 117                                 // File exists so let's load it
 118                                 require($file);
 119
 120                                 // If versions mismatch update extension first
 121                                 $ext_ver = GET_EXT_VERSION($EXT_UPDATE_DEPENDS);
 122
 123                                 // Extension version set?
 124                                 if (empty($ext_ver)) {
 125                                         // Extension not registered so far so first load task's ID...
 126                                         $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_task_system WHERE task_type='EXTENSION' AND subject LIKE '[%s:]%%' LIMIT 1",
 127                                          array($EXT_UPDATE_DEPENDS), __FILE__, __LINE__);
 128
 129                                         // Entry found?
 130                                         if (SQL_NUMROWS($result) == 1) {
 131                                                 // Task found so load task's ID and register extension...
 132                                                 list($task) = SQL_FETCHROW($result);
 133
 134                                                 // Try to register the extension
 135                                                 $test = EXTENSION_REGISTER($EXT_UPDATE_DEPENDS, $task, $dry_run);
 136                                         } // END - if
 137
 138                                         // Free result
 139                                         SQL_FREERESULT($result);
 140                                 } elseif ($ext_ver != $EXT_VERSION) {
 141                                         // Ok, update this extension now
 142                                         EXTENSION_UPDATE(basename($file), $EXT_UPDATE_DEPENDS, $ext_ver, $dry_run);
 143
 144                                         // All okay!
 145                                         $test = true;
 146                                 } else {
 147                                         // Nothing to register / update before...
 148                                         $test = true;
 149                                 }
 150
 151                                 // Restore version number
 152                                 $EXT_VERSION = $VER_BACKUP;
 153
 154                                 // Restore language back
 155                                 $EXT_LANG_PREFIX = $LANG_BCK;
 156
 157                                 // Restore $EXT_ALWAYS_ACTIVE with the value from parrent
 158                                 $EXT_ALWAYS_ACTIVE = $EXT_ALWAYS_ACTIVE_PARRENT;
 159                         } else {
 160                                 // Required file for update does not exists!
 161                                 $test = true;
 162                                 // But this is fine for the first time...
 163                         }
 164
 165                         // Finally restore previous SQLs
 166                         $SQLs = $SQLs2; unset($SQLs2);
 167                 } else {
 168                         // Does not depend on an other extension
 169                         $test = true;
 170                 }
 171
 172                 // Switch back to register mode
 173                 $EXT_LOAD_MODE = "register";
 174
 175                 // Remains true if extension registration reports no failtures
 176                 $test = ($test && !$EXT_REPORTS_FAILURE);
 177
 178                 // Does everthing before wents ok?
 179                 if ($test) {
 180                         // "Dry-run-mode" activated?
 181                         if (!$dry_run) {
 182                                 // Run all SQLs
 183                                 foreach ($SQLs as $sql) {
 184                                         // Trim spaces away which we don't need
 185                                         $sql = trim($sql);
 186
 187                                         // Is there still an SQL query?
 188                                         if (!empty($sql)) {
 189                                                 // Do we have an "ALTER TABLE" command?
 190                                                 if (substr(strtolower($sql), 0, 11) == "alter table") {
 191                                                         // Analyse the alteration command
 192                                                         SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
 193                                                 } else {
 194                                                         // Run regular SQL command
 195                                                         $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
 196                                                 }
 197                                         } // END - if
 198                                 } // END - foreach
 199
 200                                 // Remove cache file(s) if extension is active
 201                                 if ((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) {
 202                                         //* DEBUG: */ echo __LINE__.": DESTROY!<br />\n";
 203                                         // Remove cache files
 204                                         if ($cacheInstance->cache_file("extensions", true)) $cacheInstance->cache_destroy();
 205                                         if ($cacheInstance->cache_file("mod_reg", true))    $cacheInstance->cache_destroy();
 206                                         if ($cacheInstance->cache_file("config", true))     $cacheInstance->cache_destroy();
 207                                 } // END - if
 208
 209                                 // Check for added include files
 210                                 if (count($INC_POOL > 0)) {
 211                                         // Loads every include file
 212                                         foreach ($INC_POOL as $inc) {
 213                                                 require_once($inc);
 214                                         } // END - foreach
 215
 216                                         // Remove array
 217                                         unset($INC_POOL);
 218                                 } // END - if
 219
 220                                 // Register extension
 221                                 $result = SQL_QUERY_ESC("INSERT INTO "._MYSQL_PREFIX."_extensions (ext_name, ext_lang_file, ext_active, ext_version) VALUES ('%s','%s','%s','%s')",
 222                                  array($ext_name, $EXT_LANG_PREFIX, $EXT_ALWAYS_ACTIVE, $EXT_VERSION), __FILE__, __LINE__);
 223
 224                                 // Update task management
 225                                 ADMIN_SOLVE_TASK($id);
 226
 227                                 // @TODO This causes the whole (!) menu cache being purged
 228                                 CACHE_PURGE_ADMIN_MENU();
 229
 230                                 // In normal mode return a true on success
 231                                 $ret = true;
 232
 233                                 // Remove SQLs
 234                                 unset($SQLs);
 235                         } else {
 236                                 // Rewrite SQL command to keep { and } inside
 237                                 foreach ($SQLs as $key => $sql) {
 238                                         $sql = str_replace('{', "&#123;", str_replace('}', "&#125;", $sql));
 239                                         $SQLs[$key] = $sql;
 240                                 } // END - foreach
 241
 242                                 // In  "dry-run" mode return array with all SQL commands
 243                                 $ret = $SQLs;
 244
 245                                 // Remove all SQL commands
 246                                 unset($SQLs);
 247                         }
 248                 } else {
 249                         // No, an error occurs while registering extension :-(
 250                         $ret = false;
 251                 }
 252         } elseif (($id > 0) && (!empty($ext_name))) {
 253                 // Remove task from system when id and extension's name is valid
 254                 $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_task_system WHERE id=%s AND status='NEW' LIMIT 1",
 255                  array(bigintval($id)), __FILE__, __LINE__);
 256         }
 257
 258         // Is this the sql_patches?
 259         //* DEBUG: */ echo __LINE__.":{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
 260         if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove")) && (!$dry_run) && ($test)) {
 261                 // Then redirect to logout
 262                 //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
 263                 LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
 264         } // END - if
 265
 266         // Return status code
 267         return $ret;
 268 }
 269 //
 270 function EXTENSION_RUN_SQLS($id, $EXT_LOAD_MODE) {
 271         global $cacheInstance, $_CONFIG;
 272         $SQLs = array();
 273
 274         // Extensions are never active by default
 275         $EXT_ALWAYS_ACTIVE = "N";
 276
 277         // By default no SQL has been executed
 278         $sqlRan = false;
 279
 280         // This shall never do a non-admin user!
 281         if (!IS_ADMIN()) return false;
 282
 283         // Get extension's name
 284         $ext_name = GET_EXT_NAME($id);
 285         if (empty($ext_name)) return false;
 286
 287         // Load extension in detected mode
 288         //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):ext_name[{$id}]={$ext_name}<br />\n";
 289         $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
 290         if (FILE_READABLE($file)) {
 291                 // Load the include
 292                 require($file);
 293         } // END - if
 294
 295         //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):SQLs::count=".count($SQLs)."<br />\n";
 296         if ((is_array($SQLs) && (sizeof($SQLs) > 0))) {
 297                 // Run SQL commands...
 298                 foreach ($SQLs as $sql) {
 299                         // Trim spaces away which we don't need
 300                         $sql = trim($sql);
 301
 302                         // Is there still an SQL query?
 303                         if (!empty($sql)) {
 304                                 // Do we have an "ALTER TABLE" command?
 305                                 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):SQL={$SQL}<br />\n";
 306                                 if (substr(strtolower($sql), 0, 11) == "alter table") {
 307                                         // Analyse the alteration command
 308                                         SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
 309                                 } else {
 310                                         // Run regular SQL command
 311                                         $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
 312                                 }
 313
 314                                 // An SQL has been executed
 315                                 $sqlRan = true;
 316                         } // END - if
 317                 } // END - foreach
 318
 319                 // Removal mode?
 320                 if ($EXT_LOAD_MODE == "remove") {
 321                         // Delete this extension (remember to remove it from your server *before* you click on welcome!
 322                         $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
 323                          array($id), __FILE__, __LINE__);
 324                 } // END - if
 325
 326                 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):mode={$EXT_LOAD_MODE}<br />\n";
 327
 328                 // Is this the sql_patches?
 329                 //* DEBUG: */ echo __LINE__.": {$id}/{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
 330                 if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove"))) {
 331                         // Then redirect to logout
 332                         //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
 333                         LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
 334                 } // END - if
 335         } // END - if
 336
 337         // Remove cache file(s) if extension is active
 338         if (((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) && (((SQL_AFFECTEDROWS() == 1)) || ($sqlRan === true) || ($EXT_LOAD_MODE == "activate") || ($EXT_LOAD_MODE == "deactivate"))) {
 339                 //* DEBUG: */ echo __LINE__.": DESTROY!<br />\n";
 340                 // Remove cache files
 341                 if ($cacheInstance->cache_file("extensions", true)) $cacheInstance->cache_destroy();
 342                 if ($cacheInstance->cache_file("mod_reg", true))    $cacheInstance->cache_destroy();
 343                 if ($cacheInstance->cache_file("config", true))     $cacheInstance->cache_destroy();
 344
 345                 // @TODO This causes the whole (!) menu cache being purged
 346                 CACHE_PURGE_ADMIN_MENU();
 347         } // END - if
 348 }
 349 // Check if given extension is active
 350 function EXT_IS_ACTIVE ($ext_name) {
 351         global $cacheArray, $_CONFIG;
 352
 353         // Extensions are all inactive during installation
 354         if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing')) || (empty($ext_name))) return false;
 355
 356         // Not active is the default
 357         $active = "N";
 358
 359         // Check cache
 360         if (!empty($cacheArray['extensions']['ext_active'][$ext_name])) {
 361                 // Load from cache
 362                 //* DEBUG: */ echo "CACHE! ext_name={$ext_name}<br />\n";
 363                 $active = $cacheArray['extensions']['ext_active'][$ext_name];
 364
 365                 // Count cache hits
 366                 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++;
 367         } elseif (($ext_name == "cache") || (GET_EXT_VERSION("cache") == "")) {
 368                 //* DEBUG: */ echo "DB! ext_name={$ext_name}<br />\n";
 369                 // Load from database
 370                 $result = SQL_QUERY_ESC("SELECT ext_active FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 371                  array($ext_name), __FILE__, __LINE__);
 372                 if (SQL_NUMROWS($result) == 0) {
 373                         // Extension was not found!
 374                         return false;
 375                 }
 376
 377                 // Load entry
 378                 list($active) = SQL_FETCHROW($result);
 379
 380                 // Free result
 381                 SQL_FREERESULT($result);
 382
 383
 384                 // Write cache array
 385                 //* DEBUG: */ echo $ext_name."[DB]: {$active}<br />\n";
 386                 $cacheArray['extensions']['ext_active'][$ext_name] = $active;
 387         } else {
 388                 // Extension not active!
 389                 //* DEBUG: */ echo $ext_name.": Not active!<br />\n";
 390                 $cacheArray['extensions']['ext_active'][$ext_name] = "N";
 391         }
 392
 393         // Debug message
 394         //DEBUG_LOG(__FUNCTION__, __LINE__, " ext_name={$ext_name},active={$active}");
 395
 396         // Is this extension activated? (For admins we always have active extensions...)
 397         return ($active == "Y");
 398 }
 399 // Get version from extensions
 400 function GET_EXT_VERSION ($ext_name) {
 401         global $cacheArray, $_CONFIG, $cacheInstance;
 402         $ret = false;
 403
 404         // Extensions are all inactive during installation
 405         if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing'))) return "";
 406         //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): ext_name={$ext_name}<br />\n";
 407
 408         // Is the cache written?
 409         if (!empty($cacheArray['extensions']['ext_version'][$ext_name])) {
 410                 // Load data from cache
 411                 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): CACHE!<br />\n";
 412                 $ret = $cacheArray['extensions']['ext_version'][$ext_name];
 413
 414                 // Count cache hits
 415                 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++; else $_CONFIG['cache_hits'] = 1;
 416         } elseif (!is_object($cacheInstance)) {
 417                 // Load from database
 418                 $result = SQL_QUERY_ESC("SELECT ext_version FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 419                  array($ext_name), __FILE__, __LINE__);
 420                 list($ret) = SQL_FETCHROW($result);
 421                 SQL_FREERESULT($result);
 422
 423                 // Set cache
 424                 $cacheArray['extensions']['ext_version'][$ext_name] = $ret;
 425         }
 426
 427         // Return result
 428         //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): ret={$ret}<br />\n";
 429         return $ret;
 430 }
 431 //
 432 function EXTENSION_UPDATE($file, $ext, $EXT_VER, $dry_run=false)
 433 {
 434         // This shall never do a non-admin user!
 435         global $cacheInstance, $_CONFIG, $NOTES;
 436
 437         // Init arrays
 438         $SQLs = array(); $INC_POOL = array();
 439
 440         // Only admins are allowed to update extensions
 441         if ((!IS_ADMIN()) || (empty($ext))) return false;
 442
 443         // Load extension in update mode
 444         $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = ""; $NOTES = "";
 445
 446         // Load extension file
 447         include(sprintf("%sinc/extensions/%s", PATH, $file));
 448
 449         if (!empty($EXT_UPDATE_DEPENDS)) {
 450                 // Update another extension first!
 451                 $test = EXTENSION_UPDATE(("ext-".$EXT_UPDATE_DEPENDS.".php"), $EXT_UPDATE_DEPENDS, GET_EXT_VERSION($EXT_UPDATE_DEPENDS), $dry_run);
 452         }
 453
 454         // Check if version is updated
 455         if ((($EXT_VERSION != $EXT_VER) || ($dry_run)) && (is_array($EXT_VER_HISTORY)))
 456         {
 457                 // Search for starting point
 458                 $start = array_search($EXT_VER, $EXT_VER_HISTORY);
 459                 $NOTES = "";
 460
 461                 // And load SQL queries in order of version history
 462                 for ($idx = ($start + 1); $idx < sizeof($EXT_VER_HISTORY); $idx++)
 463                 {
 464                         // Remove old SQLs array to prevent possible bugs
 465                         if (!$dry_run) { unset($SQLs); $SQLs = array(); }
 466
 467                         // Set version
 468                         $EXT_VER = $EXT_VER_HISTORY[$idx];
 469
 470                         // Include again...
 471                         include(PATH."inc/extensions/".$file);
 472
 473                         // Add notes
 474                         if ($_CONFIG['verbose_sql'] == "Y")
 475                         {
 476                                 $EXT_VER = $EXT_VER_HISTORY[$idx];
 477                                 if (!empty($UPDATE_NOTES))
 478                                 {
 479                                         // Update notes found
 480                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
 481                                         $UPDATE_NOTES = "";
 482                                 }
 483                                  elseif ($EXT_VER == "0.0")
 484                                 {
 485                                         // Initial release
 486                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
 487                                 }
 488                                  else
 489                                 {
 490                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
 491                                 }
 492                         }
 493
 494                         // In real-mode execute any existing includes
 495                         if ((!$dry_run) && (count($INC_POOL) > 0)) {
 496                                 // Include all files
 497                                 foreach ($INC_POOL as $fqfn) {
 498                                         require_once($fqfn);
 499                                 } // END - foreach
 500                         } // END - if
 501
 502                         // Run SQLs
 503                         if ((is_array($SQLs)) && (!$dry_run)) {
 504                                 // Run SQL commands
 505                                 foreach ($SQLs as $sql)
 506                                 {
 507                                         $sql = trim($sql);
 508                                         if (!empty($sql))
 509                                         {
 510                                                 // Do we have an "ALTER TABLE" command?
 511                                                 if (substr(strtolower($sql), 0, 11) == "alter table") {
 512                                                         // Analyse the alteration command
 513                                                         SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
 514                                                 } else {
 515                                                         // Run regular SQL command
 516                                                         $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
 517                                                 }
 518                                         }
 519                                 }
 520                         } elseif (GET_EXT_VERSION("sql_patches") == "") {
 521                                 // Remove SQLs if extension is not installed
 522                                 $SQLs = array();
 523                         }
 524                 }
 525
 526                 if (!$dry_run)
 527                 {
 528                         // In normal mode insert task and update extension's version...
 529                         $ext_subj = "[UPDATE-".$ext."-".$EXT_VERSION.":] ".ADMIN_UPDATE_EXT_SUBJ;
 530
 531                         // Create task
 532                         CREATE_EXTENSION_UPDATE_TASK(GET_ADMIN_ID(get_session('admin_login')), $ext_subj, addslashes($NOTES));
 533
 534                         // Update extension's version
 535                         $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_extensions SET ext_version='%s' WHERE ext_name='%s' LIMIT 1",
 536                          array($EXT_VERSION, $ext), __FILE__, __LINE__);
 537
 538                         // Update cache
 539                         if (EXT_IS_ACTIVE("cache")) {
 540                                 if ($cacheInstance->cache_file("extensions", true) == true) $cacheInstance->cache_destroy();
 541                                 if ($cacheInstance->cache_file("config", true) == true)     $cacheInstance->cache_destroy();
 542                                 if ($cacheInstance->cache_file("mod_reg", true) == true)    $cacheInstance->cache_destroy();
 543                         } // END - if
 544
 545                         // Remove array
 546                         unset($SQLs);
 547                 } else {
 548                         // In "dry-run" mode return array with SQL commands
 549                         return $SQLs;
 550                 }
 551         }
 552 }
 553 //
 554 function EXTENSION_VERBOSE_TABLE($SQLs, $title = ADMIN_SQLS_EXECUTED_ON_REMOVAL, $dashed = "", $switch = false, $WIDTH = "480") {
 555         global $_CONFIG;
 556
 557         $S = false; $SW = 2; $i = 1;
 558         $OUT = "";
 559         if ((is_array($SQLs)) && (GET_EXT_VERSION("sql_patches") >= "0.0.7") && ($_CONFIG['verbose_sql'] == "Y")) {
 560                 $OUT  = "<DIV align=\"center\">
 561 <TABLE border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"".$WIDTH."\" align=\"center\"".$dashed.">
 562 <TR>
 563   <TD colspan=\"2\" align=\"center\" class=\"admin_title bottom2\" height=\"24\">
 564     <STRONG>".$title.":</STRONG>
 565   </TD>
 566 </TR>\n";
 567                 foreach ($SQLs as $idx => $sql) {
 568                         $sql = trim($sql);
 569                         if (!empty($sql)) {
 570                                 $S = true;
 571                                 $OUT .= "<TR>
 572   <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 2px\" width=\"30\">".$i.".</TD>
 573   <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 5px; padding-right: 5px\">
 574     ".$sql."
 575   </TD>
 576 </TR>\n";
 577                                 if ($switch) $SW = 3 - $SW;
 578                                 $i++;
 579                         }
 580                 }
 581         }
 582
 583         if ((!$S) && (GET_EXT_VERSION("sql_patches") >= "0.0.7") && ($_CONFIG['verbose_sql'] == "Y")) {
 584                 // No addional SQL commands to run
 585                 $OUT .= "<TR>
 586   <TD colspan=\"2\" align=\"center\" class=\"switch_sw2 bottom2\" height=\"24\">
 587     <FONT class=\"admin_note\">".ADMIN_NO_ADDIONAL_SQLS."</FONT>
 588   </TD>
 589 </TR>\n";
 590         }
 591
 592         if (!empty($OUT)) {
 593                 // Add missing close-table tag
 594                 $OUT .= "</TABLE>
 595 </DIV>\n";
 596         }
 597
 598         // Return output
 599         return $OUT;
 600 }
 601 // Get extension name from id
 602 function GET_EXT_NAME ($id) {
 603         $ret = "";
 604         global $cacheArray, $_CONFIG;
 605         if (!empty($cacheArray['extensions']['ext_name'][$id])) {
 606                 // Load from cache
 607                 $ret = $cacheArray['extensions']['ext_name'][$id];
 608
 609                 // Count cache hits
 610                 if (isset($_CONFIG['cache_hits'])) { $_CONFIG['cache_hits']++; } else { $_CONFIG['cache_hits'] = 1; }
 611         } elseif (!EXT_IS_ACTIVE("cache")) {
 612                 // Load from database
 613                 $result = SQL_QUERY_ESC("SELECT ext_name FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
 614                  array(bigintval($id)), __FILE__, __LINE__);
 615                 list($ret) = SQL_FETCHROW($result);
 616                 SQL_FREERESULT($result);
 617         }
 618         return $ret;
 619 }
 620 // Get extension id from name
 621 function GET_EXT_ID($name) {
 622         $ret = 0;
 623         global $cacheArray, $_CONFIG;
 624         if (isset($cacheArray['extensions']['ext_id'][$name])) {
 625                 // Load from cache
 626                 $ret = $cacheArray['extensions']['ext_id'][$name];
 627
 628                 // Count cache hits
 629                 if (isset($_CONFIG['cache_hits'])) { $_CONFIG['cache_hits']++; } else { $_CONFIG['cache_hits'] = 1; }
 630         } elseif (!EXT_IS_ACTIVE("cache")) {
 631                 // Load from database
 632                 $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 633                  array($name), __FILE__, __LINE__);
 634                 list($ret) = SQL_FETCHROW($result);
 635                 SQL_FREERESULT($result);
 636         }
 637
 638         // Return value
 639         return $ret;
 640 }
 641 // Activate given extension
 642 function ACTIVATE_EXTENSION($ext_name) {
 643         // Activate the extension
 644         $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_extensions SET ext_active='Y' WHERE ext_name='%s' LIMIT 1",
 645                 array($ext_name), __FILE__, __LINE__);
 646
 647         // Extension has been activated?
 648         if (SQL_AFFECTEDROWS() == 1) {
 649                 // Then run all queries
 650                 EXTENSION_RUN_SQLS(GET_EXT_ID($ext_name), "activate");
 651         } // END - if
 652 }
 653 // Checks wether the extension is older than given
 654 function EXT_VERSION_IS_OLDER ($ext_name, $ext_ver) {
 655         // Get current extension version
 656         $currVersion = GET_EXT_VERSION($ext_name);
 657
 658         // Remove all dots from both versions
 659         $currVersion = str_replace(".", "", $currVersion);
 660         $ext_ver = str_replace(".", "", $ext_ver);
 661
 662         // Now compare both and return the result
 663         return ($currVersion < $ext_ver);
 664 }
 665
 666 //
 667 ?>