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