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 // Load the extension and maybe found language and function files.
  41 function LOAD_EXTENSION ($ext_name, $EXT_LOAD_MODE = "") {
  42         global $EXT_LOADED, $_CONFIG, $CSS, $cacheMode;
  43
  44         // Is the extension already loaded?
  45         //* DEBUG: */ echo "Loading extension {$ext_name}.<br />\n";
  46         if ((isset($EXT_LOADED[$ext_name])) && (empty($EXT_LOAD_MODE))) {
  47                 // Debug message
  48                 DEBUG_LOG(__FUNCTION__, __LINE__, sprintf("Extension %s already loaded.", $ext_name));
  49                 return false;
  50         } // END - if
  51
  52         // Construct FQFN for extension file
  53         $extInclude = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
  54
  55         // Is the extension file NOT there?
  56         if (!FILE_READABLE($extInclude)) {
  57                 // Debug message
  58                 DEBUG_LOG(__FUNCTION__, __LINE__, sprintf("Extension %s not found.", $ext_name));
  59
  60                 // Abort here
  61                 return false;
  62         } // END - if
  63
  64         // Construct FQFN for language file
  65         $langInclude = sprintf("%sinc/language/%s_%s.php", PATH, $ext_name, GET_LANGUAGE());
  66
  67         // Is this include there?
  68         if (FILE_READABLE($langInclude)) {
  69                 // Then load it
  70                 //* DEBUG: */ echo "--- Language loaded.<br />\n";
  71                 require($langInclude);
  72         } // END - if
  73
  74         // Construct FQFN for functions file
  75         $funcsInclude = sprintf("%sinc/libs/%s_functions.php", PATH, $ext_name);
  76
  77         // Is this include there?
  78         if (FILE_READABLE($funcsInclude)) {
  79                 // Then load it
  80                 //* DEBUG: */ echo "--- Functions loaded.<br />\n";
  81                 require($funcsInclude);
  82         } // END - if
  83
  84         // Extensions are not deprecated by default
  85         $EXT_DEPRECATED = "N";
  86
  87         // Include the extension file
  88         //* DEBUG: */ echo "Extension loaded.<br />\n";
  89         require($extInclude);
  90
  91         // Is this extension deprecated?
  92         if ($EXT_DEPRECATED == "Y") {
  93                 // Deactivate the extension
  94                 DEACTIVATE_EXTENSION($ext_name);
  95
  96                 // Abort here
  97                 return false;
  98         } // END - if
  99
 100         // Mark it as loaded
 101         $EXT_LOADED[$ext_name] = true;
 102
 103         // All fine!
 104         return true;
 105 }
 106
 107 //
 108 function EXTENSION_REGISTER ($ext_name, $id, $dry_run=false) {
 109         global $NOTES, $_CONFIG, $INC_POOL, $cacheInstance;
 110
 111         // This shall never do a non-admin user!
 112         if (!IS_ADMIN()) return false;
 113
 114         // Is this extension already installed?
 115         if (EXT_IS_ACTIVE($ext_name)) return false;
 116
 117         // We want to register an extension and registration status is by default "failed" (= false)
 118         $EXT_LOAD_MODE = "register"; $ret = false; $SQLs = array();
 119         $INC_POOL = array();
 120
 121         // By default the language prefix is the extension's name
 122         // @TODO: Do we really need this one anymore? Can't we just take $ext_name and done?
 123         // By default we have no failtures
 124         $EXT_REPORTS_FAILURE = false;
 125
 126         // Generate file name
 127         $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
 128
 129         // Does this extension exists?
 130         if (FILE_READABLE($file)) {
 131                 // Extension was found so we can load it in registration mode
 132                 $EXT_ALWAYS_ACTIVE = "N";
 133                 require($file);
 134
 135                 // And run possible updates
 136                 $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = "";
 137                 foreach ($EXT_VER_HISTORY as $EXT_VER) {
 138                         // Load extension in update mode
 139                         require($file);
 140
 141                         // Do we have an update?
 142                         if (((GET_EXT_VERSION("sql_patches") != "") && ($_CONFIG['verbose_sql'] == "Y")) || (!EXT_IS_ACTIVE("sql_patches"))) {
 143                                 if (!empty($UPDATE_NOTES)) {
 144                                         // Update notes found
 145                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
 146                                         $UPDATE_NOTES = "";
 147                                 } elseif (($EXT_VER == "0.0") || ($EXT_VER == "0.0.0")) {
 148                                         // Initial release
 149                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
 150                                 } else {
 151                                         // No update notes found!
 152                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
 153                                 }
 154                         } // END - if
 155                 } // END - foreach
 156
 157                 // Does this extension depends on an outstanding update of another update?
 158                 if (!empty($EXT_UPDATE_DEPENDS)) {
 159                         // Backup SQL commands and clear current
 160                         $SQLs2 = $SQLs;
 161                         $SQLs  = array();
 162                         $test  = false;
 163
 164                         // Load required extension also in update mode
 165                         $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $EXT_UPDATE_DEPENDS);
 166
 167                         // Check for required file
 168                         if (FILE_READABLE($file)) {
 169                                 // Bacup version number
 170                                 $VER_BACKUP = $EXT_VERSION;
 171
 172                                 // Save the Parrent $EXT_ALWAYS_ACTIVE for later!
 173                                 $EXT_ALWAYS_ACTIVE_PARRENT = $EXT_ALWAYS_ACTIVE;
 174
 175                                 // Set EXT_ALWAYS_ACTIVE for update
 176                                 $EXT_ALWAYS_ACTIVE = "N";
 177
 178                                 // File exists so let's load it
 179                                 require($file);
 180
 181                                 // If versions mismatch update extension first
 182                                 $ext_ver = GET_EXT_VERSION($EXT_UPDATE_DEPENDS);
 183
 184                                 // Extension version set? If empty the extension is not registered
 185                                 if (empty($ext_ver)) {
 186                                         // Extension not registered so far so first load task's ID...
 187                                         $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_task_system WHERE task_type='EXTENSION' AND subject LIKE '[%s:]%%' LIMIT 1",
 188                                          array($EXT_UPDATE_DEPENDS), __FILE__, __LINE__);
 189
 190                                         // Entry found?
 191                                         if (SQL_NUMROWS($result) == 1) {
 192                                                 // Task found so load task's ID and register extension...
 193                                                 list($task) = SQL_FETCHROW($result);
 194
 195                                                 // Try to register the extension
 196                                                 $test = EXTENSION_REGISTER($EXT_UPDATE_DEPENDS, $task, $dry_run);
 197                                         } // END - if
 198
 199                                         // Free result
 200                                         SQL_FREERESULT($result);
 201                                 } elseif ($ext_ver != $EXT_VERSION) {
 202                                         // Ok, update this extension now
 203                                         EXTENSION_UPDATE(basename($file), $EXT_UPDATE_DEPENDS, $ext_ver, $dry_run);
 204
 205                                         // All okay!
 206                                         $test = true;
 207                                 } else {
 208                                         // Nothing to register / update before...
 209                                         $test = true;
 210                                 }
 211
 212                                 // Restore version number
 213                                 $EXT_VERSION = $VER_BACKUP;
 214
 215                                 // Restore $EXT_ALWAYS_ACTIVE with the value from parrent
 216                                 $EXT_ALWAYS_ACTIVE = $EXT_ALWAYS_ACTIVE_PARRENT;
 217                         } else {
 218                                 // Required file for update does not exists!
 219                                 $test = true;
 220                                 // But this is fine for the first time...
 221                         }
 222
 223                         // Finally restore previous SQLs
 224                         $SQLs = $SQLs2; unset($SQLs2);
 225                 } else {
 226                         // Does not depend on an other extension
 227                         $test = true;
 228                 }
 229
 230                 // Switch back to register mode
 231                 $EXT_LOAD_MODE = "register";
 232
 233                 // Remains true if extension registration reports no failtures
 234                 $test = ($test && !$EXT_REPORTS_FAILURE);
 235
 236                 // Does everthing before wents ok?
 237                 if ($test) {
 238                         // "Dry-run-mode" activated?
 239                         if (!$dry_run) {
 240                                 // Run all SQLs
 241                                 foreach ($SQLs as $sql) {
 242                                         // Trim spaces away which we don't need
 243                                         $sql = trim($sql);
 244
 245                                         // Is there still an SQL query?
 246                                         if (!empty($sql)) {
 247                                                 // Do we have an "ALTER TABLE" command?
 248                                                 if (substr(strtolower($sql), 0, 11) == "alter table") {
 249                                                         // Analyse the alteration command
 250                                                         SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
 251                                                 } else {
 252                                                         // Run regular SQL command
 253                                                         $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
 254                                                 }
 255                                         } // END - if
 256                                 } // END - foreach
 257
 258                                 // Remove cache file(s) if extension is active
 259                                 RUN_FILTER('post_extension_installed', $ext_name);
 260
 261                                 // Check for added include files
 262                                 if (count($INC_POOL > 0)) {
 263                                         // Loads every include file
 264                                         foreach ($INC_POOL as $inc) {
 265                                                 require_once($inc);
 266                                         } // END - foreach
 267
 268                                         // Remove array
 269                                         unset($INC_POOL);
 270                                 } // END - if
 271
 272                                 // Register extension
 273                                 $result = SQL_QUERY_ESC("INSERT INTO "._MYSQL_PREFIX."_extensions (ext_name, ext_active, ext_version) VALUES ('%s','%s','%s')",
 274                                  array($ext_name, $EXT_ALWAYS_ACTIVE, $EXT_VERSION), __FILE__, __LINE__);
 275
 276                                 // Update task management
 277                                 ADMIN_SOLVE_TASK($id);
 278
 279                                 // @TODO This causes the whole (!) menu cache being purged
 280                                 CACHE_PURGE_ADMIN_MENU();
 281
 282                                 // In normal mode return a true on success
 283                                 $ret = true;
 284
 285                                 // Remove SQLs
 286                                 unset($SQLs);
 287                         } else {
 288                                 // Rewrite SQL command to keep { and } inside
 289                                 foreach ($SQLs as $key => $sql) {
 290                                         $sql = str_replace('{', "&#123;", str_replace('}', "&#125;", $sql));
 291                                         $SQLs[$key] = $sql;
 292                                 } // END - foreach
 293
 294                                 // In  "dry-run" mode return array with all SQL commands
 295                                 $ret = $SQLs;
 296
 297                                 // Remove all SQL commands
 298                                 unset($SQLs);
 299                         }
 300                 } else {
 301                         // No, an error occurs while registering extension :-(
 302                         $ret = false;
 303                 }
 304         } elseif (($id > 0) && (!empty($ext_name))) {
 305                 // Remove task from system when id and extension's name is valid
 306                 $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_task_system WHERE id=%s AND status='NEW' LIMIT 1",
 307                  array(bigintval($id)), __FILE__, __LINE__);
 308         }
 309
 310         // Is this the sql_patches?
 311         //* DEBUG: */ echo __LINE__.":{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
 312         if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove")) && (!$dry_run) && ($test)) {
 313                 // Then redirect to logout
 314                 //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
 315                 LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
 316         } // END - if
 317
 318         // Return status code
 319         return $ret;
 320 }
 321 //
 322 function EXTENSION_RUN_SQLS($id, $EXT_LOAD_MODE) {
 323         global $cacheInstance, $_CONFIG;
 324         $SQLs = array();
 325
 326         // Extensions are never active by default
 327         $EXT_ALWAYS_ACTIVE = "N";
 328
 329         // By default no SQL has been executed
 330         $sqlRan = false;
 331
 332         // This shall never do a non-admin user!
 333         if (!IS_ADMIN()) return false;
 334
 335         // Get extension's name
 336         $ext_name = GET_EXT_NAME($id);
 337         if (empty($ext_name)) return false;
 338
 339         // Load extension in detected mode
 340         //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):ext_name[{$id}]={$ext_name}<br />\n";
 341         $file = sprintf("%sinc/extensions/ext-%s.php", PATH, $ext_name);
 342         if (FILE_READABLE($file)) {
 343                 // Load the include
 344                 require($file);
 345         } // END - if
 346
 347         //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):SQLs::count=".count($SQLs)."<br />\n";
 348         if ((is_array($SQLs) && (sizeof($SQLs) > 0))) {
 349                 // Run SQL commands...
 350                 foreach ($SQLs as $sql) {
 351                         // Trim spaces away which we don't need
 352                         $sql = trim($sql);
 353
 354                         // Is there still an SQL query?
 355                         if (!empty($sql)) {
 356                                 // Do we have an "ALTER TABLE" command?
 357                                 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):SQL={$SQL}<br />\n";
 358                                 if (substr(strtolower($sql), 0, 11) == "alter table") {
 359                                         // Analyse the alteration command
 360                                         SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
 361                                 } else {
 362                                         // Run regular SQL command
 363                                         $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
 364                                 }
 365
 366                                 // An SQL has been executed
 367                                 $sqlRan = true;
 368                         } // END - if
 369                 } // END - foreach
 370
 371                 // Removal mode?
 372                 if ($EXT_LOAD_MODE == "remove") {
 373                         // Delete this extension (remember to remove it from your server *before* you click on welcome!
 374                         $result = SQL_QUERY_ESC("DELETE LOW_PRIORITY FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
 375                          array($id), __FILE__, __LINE__);
 376                 } // END - if
 377
 378                 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):mode={$EXT_LOAD_MODE}<br />\n";
 379
 380                 // Is this the sql_patches?
 381                 //* DEBUG: */ echo __LINE__.": {$id}/{$ext_name}/{$EXT_LOAD_MODE}<br />\n";
 382                 if (($ext_name == "sql_patches") && (($EXT_LOAD_MODE == "register") || ($EXT_LOAD_MODE == "remove"))) {
 383                         // Then redirect to logout
 384                         //* DEBUG: */ echo __LINE__.": LOAD!<br />\n";
 385                         LOAD_URL("modules.php?module=admin&logout=1&".$EXT_LOAD_MODE."=sql_patches");
 386                 } // END - if
 387         } // END - if
 388
 389         // Remove cache file(s) if extension is active
 390         if (((EXT_IS_ACTIVE("cache")) || (GET_EXT_VERSION("cache") != "")) && (((SQL_AFFECTEDROWS() == 1)) || ($sqlRan === true) || ($EXT_LOAD_MODE == "activate") || ($EXT_LOAD_MODE == "deactivate"))) {
 391                 // Run filters
 392                 RUN_FILTER('post_extension_run_sql', $ext_name);
 393
 394                 // @TODO This causes the whole (!) menu cache being purged
 395                 CACHE_PURGE_ADMIN_MENU();
 396         } // END - if
 397 }
 398 // Check if given extension is active
 399 function EXT_IS_ACTIVE ($ext_name) {
 400         global $cacheArray, $_CONFIG;
 401
 402         // Extensions are all inactive during installation
 403         if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing')) || (empty($ext_name))) return false;
 404
 405         // Not active is the default
 406         $active = "N";
 407
 408         // Check cache
 409         if (!empty($cacheArray['extensions']['ext_active'][$ext_name])) {
 410                 // Load from cache
 411                 //* DEBUG: */ echo "CACHE! ext_name={$ext_name}<br />\n";
 412                 $active = $cacheArray['extensions']['ext_active'][$ext_name];
 413
 414                 // Count cache hits
 415                 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++;
 416         } elseif (($ext_name == "cache") || (GET_EXT_VERSION("cache") == "")) {
 417                 //* DEBUG: */ echo "DB! ext_name={$ext_name}<br />\n";
 418                 // Load from database
 419                 $result = SQL_QUERY_ESC("SELECT ext_active FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 420                  array($ext_name), __FILE__, __LINE__);
 421                 if (SQL_NUMROWS($result) == 0) {
 422                         // Extension was not found!
 423                         return false;
 424                 }
 425
 426                 // Load entry
 427                 list($active) = SQL_FETCHROW($result);
 428
 429                 // Free result
 430                 SQL_FREERESULT($result);
 431
 432
 433                 // Write cache array
 434                 //* DEBUG: */ echo $ext_name."[DB]: {$active}<br />\n";
 435                 $cacheArray['extensions']['ext_active'][$ext_name] = $active;
 436         } else {
 437                 // Extension not active!
 438                 //* DEBUG: */ echo $ext_name.": Not active!<br />\n";
 439                 $cacheArray['extensions']['ext_active'][$ext_name] = "N";
 440         }
 441
 442         // Debug message
 443         //* DEBUG: */ DEBUG_LOG(__FUNCTION__, __LINE__, " ext_name={$ext_name},active={$active}");
 444
 445         // Is this extension activated? (For admins we always have active extensions...)
 446         return ($active == "Y");
 447 }
 448 // Get version from extensions
 449 function GET_EXT_VERSION ($ext_name) {
 450         global $cacheArray, $_CONFIG, $cacheInstance;
 451         $ret = false;
 452
 453         // Extensions are all inactive during installation
 454         if ((!isBooleanConstantAndTrue('mxchange_installed')) || (isBooleanConstantAndTrue('mxchange_installing'))) return "";
 455         //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): ext_name={$ext_name}<br />\n";
 456
 457         // Is the cache written?
 458         if (!empty($cacheArray['extensions']['ext_version'][$ext_name])) {
 459                 // Load data from cache
 460                 //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): CACHE!<br />\n";
 461                 $ret = $cacheArray['extensions']['ext_version'][$ext_name];
 462
 463                 // Count cache hits
 464                 if (isset($_CONFIG['cache_hits'])) $_CONFIG['cache_hits']++; else $_CONFIG['cache_hits'] = 1;
 465         } elseif (!is_object($cacheInstance)) {
 466                 // Load from database
 467                 $result = SQL_QUERY_ESC("SELECT ext_version FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 468                  array($ext_name), __FILE__, __LINE__);
 469                 list($ret) = SQL_FETCHROW($result);
 470                 SQL_FREERESULT($result);
 471
 472                 // Set cache
 473                 $cacheArray['extensions']['ext_version'][$ext_name] = $ret;
 474         }
 475
 476         // Return result
 477         //* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>): ret={$ret}<br />\n";
 478         return $ret;
 479 }
 480 //
 481 function EXTENSION_UPDATE($file, $ext, $EXT_VER, $dry_run=false) {
 482         // This shall never do a non-admin user!
 483         global $cacheInstance, $_CONFIG, $NOTES;
 484
 485         // Init arrays
 486         $SQLs = array(); $INC_POOL = array();
 487
 488         // Only admins are allowed to update extensions
 489         if ((!IS_ADMIN()) || (empty($ext))) return false;
 490
 491         // Load extension in update mode
 492         $EXT_LOAD_MODE = "update"; $EXT_UPDATE_DEPENDS = ""; $NOTES = "";
 493
 494         // Load extension file
 495         include(sprintf("%sinc/extensions/%s", PATH, $file));
 496
 497         if (!empty($EXT_UPDATE_DEPENDS)) {
 498                 // Update another extension first!
 499                 $test = EXTENSION_UPDATE(("ext-".$EXT_UPDATE_DEPENDS.".php"), $EXT_UPDATE_DEPENDS, GET_EXT_VERSION($EXT_UPDATE_DEPENDS), $dry_run);
 500         }
 501
 502         // Check if version is updated
 503         if ((($EXT_VERSION != $EXT_VER) || ($dry_run)) && (is_array($EXT_VER_HISTORY))) {
 504                 // Search for starting point
 505                 $start = array_search($EXT_VER, $EXT_VER_HISTORY);
 506                 $NOTES = "";
 507
 508                 // And load SQL queries in order of version history
 509                 for ($idx = ($start + 1); $idx < sizeof($EXT_VER_HISTORY); $idx++) {
 510                         // Remove old SQLs array to prevent possible bugs
 511                         if (!$dry_run) { unset($SQLs); $SQLs = array(); }
 512
 513                         // Set version
 514                         $EXT_VER = $EXT_VER_HISTORY[$idx];
 515
 516                         // Include again...
 517                         include(PATH."inc/extensions/".$file);
 518
 519                         // Add notes
 520                         if ($_CONFIG['verbose_sql'] == "Y") {
 521                                 $EXT_VER = $EXT_VER_HISTORY[$idx];
 522                                 if (!empty($UPDATE_NOTES)) {
 523                                         // Update notes found
 524                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".$UPDATE_NOTES."<br /><br />\n";
 525                                         $UPDATE_NOTES = "";
 526                                 } elseif ($EXT_VER == "0.0") {
 527                                         // Initial release
 528                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br />".INITIAL_RELEASE."<br /><br />\n";
 529                                 } else {
 530                                         $NOTES .= "<STRONG>v".$EXT_VER.":</STRONG><br /><I>".NO_UPDATE_NOTES."</I><br /><br />\n";
 531                                 }
 532                         } // END - if
 533
 534                         // In real-mode execute any existing includes
 535                         if ((!$dry_run) && (count($INC_POOL) > 0)) {
 536                                 // Include all files
 537                                 foreach ($INC_POOL as $fqfn) {
 538                                         require_once($fqfn);
 539                                 } // END - foreach
 540                         } // END - if
 541
 542                         // Run SQLs
 543                         if ((is_array($SQLs)) && (!$dry_run)) {
 544                                 // Run SQL commands
 545                                 foreach ($SQLs as $sql)
 546                                 {
 547                                         $sql = trim($sql);
 548                                         if (!empty($sql))
 549                                         {
 550                                                 // Do we have an "ALTER TABLE" command?
 551                                                 if (substr(strtolower($sql), 0, 11) == "alter table") {
 552                                                         // Analyse the alteration command
 553                                                         SQL_ALTER_TABLE($sql, __FILE__, __LINE__);
 554                                                 } else {
 555                                                         // Run regular SQL command
 556                                                         $result = SQL_QUERY($sql, __FILE__, __LINE__, false);
 557                                                 }
 558                                         }
 559                                 }
 560                         } elseif (GET_EXT_VERSION("sql_patches") == "") {
 561                                 // Remove SQLs if extension is not installed
 562                                 $SQLs = array();
 563                         }
 564                 } // END - for
 565
 566                 if (!$dry_run) {
 567                         // In normal mode insert task and update extension's version...
 568                         $ext_subj = "[UPDATE-".$ext."-".$EXT_VERSION.":] ".ADMIN_UPDATE_EXT_SUBJ;
 569
 570                         // Create task
 571                         CREATE_EXTENSION_UPDATE_TASK(GET_ADMIN_ID(get_session('admin_login')), $ext_subj, addslashes($NOTES));
 572
 573                         // Update extension's version
 574                         $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_extensions SET ext_version='%s' WHERE ext_name='%s' LIMIT 1",
 575                                 array($EXT_VERSION, $ext), __FILE__, __LINE__);
 576
 577                         // Remove array
 578                         unset($SQLs);
 579
 580                         // Run filters on success extension update
 581                         RUN_FILTER('extension_update', $ext);
 582                 } else {
 583                         // In "dry-run" mode return array with SQL commands
 584                         return $SQLs;
 585                 }
 586         }
 587 }
 588
 589 // Output verbose SQL table for extension
 590 function EXTENSION_VERBOSE_TABLE ($SQLs, $title = ADMIN_SQLS_EXECUTED_ON_REMOVAL, $dashed = "", $switch = false, $width = "480") {
 591         global $_CONFIG;
 592
 593         $S = false; $SW = 2; $i = 1;
 594         $OUT = "";
 595         if ((is_array($SQLs)) && (GET_EXT_VERSION("sql_patches") >= "0.0.7") && ($_CONFIG['verbose_sql'] == "Y")) {
 596                 $OUT  = "<DIV align=\"center\">
 597 <TABLE border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"".$width."\" align=\"center\"".$dashed.">
 598 <TR>
 599   <TD colspan=\"2\" align=\"center\" class=\"admin_title bottom2\" height=\"24\">
 600     <STRONG>".$title.":</STRONG>
 601   </TD>
 602 </TR>\n";
 603                 foreach ($SQLs as $idx => $sql) {
 604                         $sql = trim($sql);
 605                         if (!empty($sql)) {
 606                                 $S = true;
 607                                 $OUT .= "<TR>
 608   <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 2px\" width=\"30\">".$i.".</TD>
 609   <TD class=\"switch_sw".(3 - $SW)." bottom2\" style=\"padding-left: 5px; padding-right: 5px\">
 610     ".$sql."
 611   </TD>
 612 </TR>\n";
 613                                 if ($switch) $SW = 3 - $SW;
 614                                 $i++;
 615                         }
 616                 }
 617         }
 618
 619         if ((!$S) && (GET_EXT_VERSION("sql_patches") >= "0.0.7") && ($_CONFIG['verbose_sql'] == "Y")) {
 620                 // No addional SQL commands to run
 621                 $OUT .= "<TR>
 622   <TD colspan=\"2\" align=\"center\" class=\"switch_sw2 bottom2\" height=\"24\">
 623     <FONT class=\"admin_note\">".ADMIN_NO_ADDIONAL_SQLS."</FONT>
 624   </TD>
 625 </TR>\n";
 626         }
 627
 628         if (!empty($OUT)) {
 629                 // Add missing close-table tag
 630                 $OUT .= "</TABLE>
 631 </DIV>\n";
 632         }
 633
 634         // Return output
 635         return $OUT;
 636 }
 637
 638 // Get extension name from id
 639 function GET_EXT_NAME ($id) {
 640         $ret = "";
 641         global $cacheArray, $_CONFIG;
 642         if (!empty($cacheArray['extensions']['ext_name'][$id])) {
 643                 // Load from cache
 644                 $ret = $cacheArray['extensions']['ext_name'][$id];
 645
 646                 // Count cache hits
 647                 if (isset($_CONFIG['cache_hits'])) { $_CONFIG['cache_hits']++; } else { $_CONFIG['cache_hits'] = 1; }
 648         } elseif (!EXT_IS_ACTIVE("cache")) {
 649                 // Load from database
 650                 $result = SQL_QUERY_ESC("SELECT ext_name FROM "._MYSQL_PREFIX."_extensions WHERE id=%s LIMIT 1",
 651                         array(bigintval($id)), __FILE__, __LINE__);
 652                 list($ret) = SQL_FETCHROW($result);
 653                 SQL_FREERESULT($result);
 654         }
 655         return $ret;
 656 }
 657
 658 // Get extension id from name
 659 function GET_EXT_ID($name) {
 660         $ret = 0;
 661         global $cacheArray, $_CONFIG;
 662         if (isset($cacheArray['extensions']['ext_id'][$name])) {
 663                 // Load from cache
 664                 $ret = $cacheArray['extensions']['ext_id'][$name];
 665
 666                 // Count cache hits
 667                 if (isset($_CONFIG['cache_hits'])) { $_CONFIG['cache_hits']++; } else { $_CONFIG['cache_hits'] = 1; }
 668         } elseif (!EXT_IS_ACTIVE("cache")) {
 669                 // Load from database
 670                 $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_extensions WHERE ext_name='%s' LIMIT 1",
 671                         array($name), __FILE__, __LINE__);
 672                 list($ret) = SQL_FETCHROW($result);
 673                 SQL_FREERESULT($result);
 674         }
 675
 676         // Return value
 677         return $ret;
 678 }
 679
 680 // Activate given extension
 681 function ACTIVATE_EXTENSION ($ext_name) {
 682         // Activate the extension
 683         $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_extensions SET ext_active='Y' WHERE ext_name='%s' LIMIT 1",
 684                 array($ext_name), __FILE__, __LINE__);
 685
 686         // Extension has been activated?
 687         if (SQL_AFFECTEDROWS() == 1) {
 688                 // Then run all queries
 689                 EXTENSION_RUN_SQLS(GET_EXT_ID($ext_name), "activate");
 690         } // END - if
 691 }
 692
 693 // Deactivate given extension
 694 function DEACTIVATE_EXTENSION($ext_name) {
 695         // Activate the extension
 696         $result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_extensions SET ext_active='N' WHERE ext_name='%s' LIMIT 1",
 697                 array($ext_name), __FILE__, __LINE__);
 698
 699         // Extension has been activated?
 700         if (SQL_AFFECTEDROWS() == 1) {
 701                 // Then run all queries
 702                 EXTENSION_RUN_SQLS(GET_EXT_ID($ext_name), "deactivate");
 703
 704                 // Create new task
 705                 CREATE_EXTENSION_DEACTIVATION_TASK($ext_name);
 706
 707                 // Notify the admin
 708                 SEND_ADMIN_NOTIFICATION(ADMIN_SUBJECT_EXTENSION_DEACTIVATED, "admin_ext_deactivated", array('ext_name' => $ext_name));
 709         } // END - if
 710 }
 711
 712 // Checks wether the extension is older than given
 713 function EXT_VERSION_IS_OLDER ($ext_name, $ext_ver) {
 714         // Get current extension version
 715         $currVersion = GET_EXT_VERSION($ext_name);
 716
 717         // Remove all dots from both versions
 718         $currVersion = str_replace(".", "", $currVersion);
 719         $ext_ver = str_replace(".", "", $ext_ver);
 720
 721         // Now compare both and return the result
 722         return ($currVersion < $ext_ver);
 723 }
 724
 725 // Creates a new task for updated extension
 726 function CREATE_EXTENSION_UPDATE_TASK ($admin_id, $subject, $notes) {
 727         // Check if task is not there
 728         $result = SQL_QUERY_ESC("SELECT id FROM "._MYSQL_PREFIX."_task_system WHERE subject='%s' LIMIT 1",
 729                 array($subject), __FILE__, __LINE__);
 730         if (SQL_NUMROWS($result) == 0) {
 731                 // Task not created so it's a brand-new extension which we need to register and create a task for!
 732                 $result = SQL_QUERY_ESC("INSERT INTO "._MYSQL_PREFIX."_task_system (assigned_admin, userid, status, task_type, subject, text, task_created) VALUES ('%s','0','NEW','EXTENSION_UPDATE','%s','%s', UNIX_TIMESTAMP())",
 733                         array($admin_id, $subject, $notes), __FILE__, __LINE__);
 734         } // END - if
 735
 736         // Free memory
 737         SQL_FREERESULT($result);
 738 }
 739
 740 // Creates a new task for newly installed extension
 741 function CREATE_NEW_EXTENSION_TASK ($admin_id, $subject, $ext) {
 742         // Not installed and do we have created a task for the admin?
 743         $result = SQL_QUERY_ESC("SELECT `id` FROM `"._MYSQL_PREFIX."_task_system` WHERE `subject` LIKE '%s%%' LIMIT 1",
 744                 array($subject), __FILE__, __LINE__);
 745         if ((SQL_NUMROWS($result) == 0) && (GET_EXT_VERSION($ext) == "")) {
 746                 // Template file
 747                 $tpl = sprintf("%stemplates/%s/html/ext/ext_%s.tpl",
 748                         PATH,
 749                         GET_LANGUAGE(),
 750                         $ext
 751                 );
 752
 753                 // Load text for task
 754                 if (FILE_READABLE($tpl)) {
 755                         // Load extension's own text template (HTML!)
 756                         $msg = LOAD_TEMPLATE("ext_".$ext, true);
 757                 } else {
 758                         // Load default message
 759                         $msg = LOAD_TEMPLATE("admin_new_ext", "", 0);
 760                 }
 761
 762                 // Task not created so it's a brand-new extension which we need to register and create a task for!
 763                 $result_insert = SQL_QUERY_ESC("INSERT INTO "._MYSQL_PREFIX."_task_system (assigned_admin, userid, status, task_type, subject, text, task_created)
 764 VALUES (%s,0,'NEW','EXTENSION','%s','%s',UNIX_TIMESTAMP())",
 765                         array(
 766                                 $admin_id,
 767                                 $subject,
 768                                 addslashes($msg),
 769                         ),  __FILE__, __LINE__, true, false
 770                 );
 771         } // END - if
 772
 773         // Free memory
 774         SQL_FREERESULT($result);
 775 }
 776
 777 // Creates a task for automatically deactivated (deprecated) extension
 778 function CREATE_EXTENSION_DEACTIVATION_TASK ($ext) {
 779         // Create subject line
 780         $subject = sprintf("[%s:] %s", $ext, TASK_SUBJ_EXTENSION_DEACTIVATED);
 781
 782         // Not installed and do we have created a task for the admin?
 783         $result = SQL_QUERY_ESC("SELECT `id` FROM `"._MYSQL_PREFIX."_task_system` WHERE `subject` = '%s' LIMIT 1",
 784                 array($subject), __FILE__, __LINE__);
 785         if ((SQL_NUMROWS($result) == 0) && (GET_EXT_VERSION($ext) != "")) {
 786                 // Task not created so add it
 787                 $result_insert = SQL_QUERY_ESC("INSERT INTO "._MYSQL_PREFIX."_task_system (assigned_admin, userid, status, task_type, subject, text, task_created)
 788 VALUES (0,0,'NEW','EXTENSION_DEACTIVATION','%s','%s',UNIX_TIMESTAMP())",
 789                         array(
 790                                 $subject,
 791                                 addslashes(LOAD_TEMPLATE("task_ext_deactivated", true, $ext)),
 792                         ),  __FILE__, __LINE__, true, false
 793                 );
 794         } // END - if
 795
 796         // Free memory
 797         SQL_FREERESULT($result);
 798 }
 799
 800 //
 801 ?>