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