import.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Core script for import, this is just the glue around all other stuff
   5  *
   6  * @uses    PMA_Bookmark_getList()
   7  * @version $Id$
   8  * @package phpMyAdmin
   9  */
  10
  11 /**
  12  * Get the variables sent or posted to this script and a core script
  13  */
  14 require_once './libraries/common.inc.php';
  15 //require_once './libraries/display_import_functions.lib.php';
  16 $GLOBALS['js_include'][] = 'functions.js';
  17 $GLOBALS['js_include'][] = 'mootools.js';
  18
  19 // reset import messages for ajax request
  20 $_SESSION['Import_message']['message'] = null;
  21 $_SESSION['Import_message']['go_back_url'] = null;
  22 // default values
  23 $GLOBALS['reload'] = false;
  24
  25 // Are we just executing plain query or sql file? (eg. non import, but query box/window run)
  26 if (!empty($sql_query)) {
  27     // run SQL query
  28     $import_text = $sql_query;
  29     $import_type = 'query';
  30     $format = 'sql';
  31
  32     // refresh left frame on changes in table or db structure
  33     if (preg_match('/^(CREATE|ALTER|DROP)\s+(VIEW|TABLE|DATABASE|SCHEMA)\s+/i', $sql_query)) {
  34         $GLOBALS['reload'] = true;
  35     }
  36
  37     $sql_query = '';
  38 } elseif (!empty($sql_localfile)) {
  39     // run SQL file on server
  40     $local_import_file = $sql_localfile;
  41     $import_type = 'queryfile';
  42     $format = 'sql';
  43     unset($sql_localfile);
  44 } elseif (!empty($sql_file)) {
  45     // run uploaded SQL file
  46     $import_file = $sql_file;
  47     $import_type = 'queryfile';
  48     $format = 'sql';
  49     unset($sql_file);
  50 } elseif (!empty($id_bookmark)) {
  51     // run bookmark
  52     $import_type = 'query';
  53     $format = 'sql';
  54 }
  55
  56 // If we didn't get any parameters, either user called this directly, or
  57 // upload limit has been reached, let's assume the second possibility.
  58 ;
  59 if ($_POST == array() && $_GET == array()) {
  60     require_once './libraries/header.inc.php';
  61     $message = PMA_Message::error('strUploadLimit');
  62     $message->addParam('[a@./Documentation.html#faq1_16@_blank]');
  63     $message->addParam('[/a]');
  64
  65     // so we can obtain the message
  66     $_SESSION['Import_message']['message'] = $message->getDisplay();
  67     $_SESSION['Import_message']['go_back_url'] = $goto;
  68
  69     $message->display();
  70     require './libraries/footer.inc.php';
  71 }
  72
  73 // Check needed parameters
  74 PMA_checkParameters(array('import_type', 'format'));
  75
  76 // We don't want anything special in format
  77 $format = PMA_securePath($format);
  78
  79 // Import functions
  80 require_once './libraries/import.lib.php';
  81
  82 // Create error and goto url
  83 if ($import_type == 'table') {
  84     $err_url = 'tbl_import.php?' . PMA_generate_common_url($db, $table);
  85     $_SESSION['Import_message']['go_back_url'] = $err_url;
  86     $goto = 'tbl_import.php';
  87 } elseif ($import_type == 'database') {
  88     $err_url = 'db_import.php?' . PMA_generate_common_url($db);
  89     $_SESSION['Import_message']['go_back_url'] = $err_url;
  90     $goto = 'db_import.php';
  91 } elseif ($import_type == 'server') {
  92     $err_url = 'server_import.php?' . PMA_generate_common_url();
  93     $_SESSION['Import_message']['go_back_url'] = $err_url;
  94     $goto = 'server_import.php';
  95 } else {
  96     if (empty($goto) || !preg_match('@^(server|db|tbl)(_[a-z]*)*\.php$@i', $goto)) {
  97         if (strlen($table) && strlen($db)) {
  98             $goto = 'tbl_structure.php';
  99         } elseif (strlen($db)) {
 100             $goto = 'db_structure.php';
 101         } else {
 102             $goto = 'server_sql.php';
 103         }
 104     }
 105     if (strlen($table) && strlen($db)) {
 106         $common = PMA_generate_common_url($db, $table);
 107     } elseif (strlen($db)) {
 108         $common = PMA_generate_common_url($db);
 109     } else {
 110         $common = PMA_generate_common_url();
 111     }
 112     $err_url  = $goto
 113               . '?' . $common
 114               . (preg_match('@^tbl_[a-z]*\.php$@', $goto) ? '&amp;table=' . urlencode($table) : '');
 115     $_SESSION['Import_message']['go_back_url'] = $err_url;
 116 }
 117
 118
 119 if (strlen($db)) {
 120     PMA_DBI_select_db($db);
 121 }
 122
 123 @set_time_limit($cfg['ExecTimeLimit']);
 124 if (!empty($cfg['MemoryLimit'])) {
 125     @ini_set('memory_limit', $cfg['MemoryLimit']);
 126 }
 127
 128 $timestamp = time();
 129 if (isset($allow_interrupt)) {
 130     $maximum_time = ini_get('max_execution_time');
 131 } else {
 132     $maximum_time = 0;
 133 }
 134
 135 // set default values
 136 $timeout_passed = FALSE;
 137 $error = FALSE;
 138 $read_multiply = 1;
 139 $finished = FALSE;
 140 $offset = 0;
 141 $max_sql_len = 0;
 142 $file_to_unlink = '';
 143 $sql_query = '';
 144 $sql_query_disabled = FALSE;
 145 $go_sql = FALSE;
 146 $executed_queries = 0;
 147 $run_query = TRUE;
 148 $charset_conversion = FALSE;
 149 $reset_charset = FALSE;
 150 $bookmark_created = FALSE;
 151
 152 // Bookmark Support: get a query back from bookmark if required
 153 if (!empty($id_bookmark)) {
 154     require_once './libraries/bookmark.lib.php';
 155     switch ($action_bookmark) {
 156         case 0: // bookmarked query that have to be run
 157             $import_text = PMA_Bookmark_get($db, $id_bookmark, 'id', isset($action_bookmark_all));
 158             if (isset($bookmark_variable) && !empty($bookmark_variable)) {
 159                 $import_text = preg_replace('|/\*(.*)\[VARIABLE\](.*)\*/|imsU', '${1}' . PMA_sqlAddslashes($bookmark_variable) . '${2}', $import_text);
 160             }
 161
 162             // refresh left frame on changes in table or db structure
 163             if (preg_match('/^(CREATE|ALTER|DROP)\s+(VIEW|TABLE|DATABASE|SCHEMA)\s+/i', $import_text)) {
 164                 $GLOBALS['reload'] = true;
 165             }
 166
 167             break;
 168         case 1: // bookmarked query that have to be displayed
 169             $import_text = PMA_Bookmark_get($db, $id_bookmark);
 170             $run_query = FALSE;
 171             break;
 172         case 2: // bookmarked query that have to be deleted
 173             $import_text = PMA_Bookmark_get($db, $id_bookmark);
 174             PMA_Bookmark_delete($db, $id_bookmark);
 175             $run_query = FALSE;
 176             $error = TRUE; // this is kind of hack to skip processing the query
 177             break;
 178     }
 179 } // end bookmarks reading
 180
 181 // Do no run query if we show PHP code
 182 if (isset($GLOBALS['show_as_php'])) {
 183     $run_query = FALSE;
 184     $go_sql = TRUE;
 185 }
 186
 187 // Store the query as a bookmark before executing it if bookmarklabel was given
 188 if (!empty($bkm_label) && !empty($import_text)) {
 189     require_once './libraries/bookmark.lib.php';
 190     $bfields = array(
 191                  'dbase' => $db,
 192                  'user'  => $cfg['Bookmark']['user'],
 193                  'query' => urlencode($import_text),
 194                  'label' => $bkm_label
 195     );
 196
 197     // Should we replace bookmark?
 198     if (isset($bkm_replace)) {
 199         $bookmarks = PMA_Bookmark_getList($db);
 200         foreach ($bookmarks as $key => $val) {
 201             if ($val == $bkm_label) {
 202                 PMA_Bookmark_delete($db, $key);
 203             }
 204         }
 205     }
 206
 207     PMA_Bookmark_save($bfields, isset($bkm_all_users));
 208
 209     $bookmark_created = TRUE;
 210 } // end store bookmarks
 211
 212 // We can not read all at once, otherwise we can run out of memory
 213 $memory_limit = trim(@ini_get('memory_limit'));
 214 // 2 MB as default
 215 if (empty($memory_limit)) {
 216     $memory_limit = 2 * 1024 * 1024;
 217 }
 218 // In case no memory limit we work on 10MB chunks
 219 if ($memory_limit == -1) {
 220     $memory_limit = 10 * 1024 * 1024;
 221 }
 222
 223 // Calculate value of the limit
 224 if (strtolower(substr($memory_limit, -1)) == 'm') {
 225     $memory_limit = (int)substr($memory_limit, 0, -1) * 1024 * 1024;
 226 } elseif (strtolower(substr($memory_limit, -1)) == 'k') {
 227     $memory_limit = (int)substr($memory_limit, 0, -1) * 1024;
 228 } elseif (strtolower(substr($memory_limit, -1)) == 'g') {
 229     $memory_limit = (int)substr($memory_limit, 0, -1) * 1024 * 1024 * 1024;
 230 } else {
 231     $memory_limit = (int)$memory_limit;
 232 }
 233
 234 $read_limit = $memory_limit / 8; // Just to be sure, there might be lot of memory needed for uncompression
 235
 236 // handle filenames
 237 if (!empty($local_import_file) && !empty($cfg['UploadDir'])) {
 238
 239     // sanitize $local_import_file as it comes from a POST
 240     $local_import_file = PMA_securePath($local_import_file);
 241
 242     $import_file  = PMA_userDir($cfg['UploadDir']) . $local_import_file;
 243 } elseif (empty($import_file) || !is_uploaded_file($import_file))  {
 244     $import_file  = 'none';
 245 }
 246
 247 // Do we have file to import?
 248
 249 if ($import_file != 'none' && !$error) {
 250     // work around open_basedir and other limitations
 251     $open_basedir = @ini_get('open_basedir');
 252
 253     // If we are on a server with open_basedir, we must move the file
 254     // before opening it. The doc explains how to create the "./tmp"
 255     // directory
 256
 257     if (!empty($open_basedir)) {
 258
 259         $tmp_subdir = (PMA_IS_WINDOWS ? '.\\tmp\\' : './tmp/');
 260
 261         if (is_writable($tmp_subdir)) {
 262
 263
 264             $import_file_new = $tmp_subdir . basename($import_file);
 265             if (move_uploaded_file($import_file, $import_file_new)) {
 266                 $import_file = $import_file_new;
 267                 $file_to_unlink = $import_file_new;
 268             }
 269
 270             $size = filesize($import_file);
 271         }
 272     }
 273
 274     /**
 275      *  Handle file compression
 276      *  @todo duplicate code exists in File.class.php
 277      */
 278     $compression = PMA_detectCompression($import_file);
 279     if ($compression === FALSE) {
 280         $message = PMA_Message::error('strFileCouldNotBeRead');
 281         $error = TRUE;
 282     } else {
 283         switch ($compression) {
 284             case 'application/bzip2':
 285                 if ($cfg['BZipDump'] && @function_exists('bzopen')) {
 286                     $import_handle = @bzopen($import_file, 'r');
 287                 } else {
 288                     $message = PMA_Message::error('strUnsupportedCompressionDetected');
 289                     $message->addParam($compression);
 290                     $error = TRUE;
 291                 }
 292                 break;
 293             case 'application/gzip':
 294                 if ($cfg['GZipDump'] && @function_exists('gzopen')) {
 295                     $import_handle = @gzopen($import_file, 'r');
 296                 } else {
 297                     $message = PMA_Message::error('strUnsupportedCompressionDetected');
 298                     $message->addParam($compression);
 299                     $error = TRUE;
 300                 }
 301                 break;
 302             case 'application/zip':
 303                 if ($cfg['ZipDump'] && @function_exists('zip_open')) {
 304                     /**
 305                      * Load interface for zip extension.
 306                      */
 307                     include_once './libraries/zip_extension.lib.php';
 308                     $result = PMA_getZipContents($import_file);
 309                     if (! empty($result['error'])) {
 310                         $message = PMA_Message::rawError($result['error']);
 311                         $error = TRUE;
 312                     } else {
 313                         $import_text = $result['data'];
 314                     }
 315                 } else {
 316                     $message = PMA_Message::error('strUnsupportedCompressionDetected');
 317                     $message->addParam($compression);
 318                     $error = TRUE;
 319                 }
 320                 break;
 321             case 'none':
 322                 $import_handle = @fopen($import_file, 'r');
 323                 break;
 324             default:
 325                 $message = PMA_Message::error('strUnsupportedCompressionDetected');
 326                 $message->addParam($compression);
 327                 $error = TRUE;
 328                 break;
 329         }
 330     }
 331     // use isset() because zip compression type does not use a handle
 332     if (!$error && isset($import_handle) && $import_handle === FALSE) {
 333         $message = PMA_Message::error('strFileCouldNotBeRead');
 334         $error = TRUE;
 335     }
 336 } elseif (!$error) {
 337     if (!isset($import_text) || empty($import_text)) {
 338         $message = PMA_Message::error('strNoDataReceived');
 339         $error = TRUE;
 340     }
 341 }
 342
 343 // so we can obtain the message
 344 //$_SESSION['Import_message'] = $message->getDisplay();
 345
 346 // Convert the file's charset if necessary
 347 if ($cfg['AllowAnywhereRecoding'] && isset($charset_of_file)) {
 348     if ($charset_of_file != $charset) {
 349         $charset_conversion = TRUE;
 350     }
 351 } elseif (isset($charset_of_file) && $charset_of_file != 'utf8') {
 352     PMA_DBI_query('SET NAMES \'' . $charset_of_file . '\'');
 353     // We can not show query in this case, it is in different charset
 354     $sql_query_disabled = TRUE;
 355     $reset_charset = TRUE;
 356 }
 357
 358 // Something to skip?
 359 if (!$error && isset($skip)) {
 360     $original_skip = $skip;
 361     while ($skip > 0) {
 362         PMA_importGetNextChunk($skip < $read_limit ? $skip : $read_limit);
 363         $read_multiply = 1; // Disable read progresivity, otherwise we eat all memory!
 364         $skip -= $read_limit;
 365     }
 366     unset($skip);
 367 }
 368
 369 if (!$error) {
 370     // Check for file existance
 371     if (!file_exists('./libraries/import/' . $format . '.php')) {
 372         $error = TRUE;
 373         $message = PMA_Message::error('strCanNotLoadImportPlugins');
 374     } else {
 375         // Do the real import
 376         $plugin_param = $import_type;
 377         require './libraries/import/' . $format . '.php';
 378     }
 379 }
 380
 381 if (! $error && FALSE !== $import_handle && NULL !== $import_handle) {
 382     fclose($import_handle);
 383 }
 384
 385 // Cleanup temporary file
 386 if ($file_to_unlink != '') {
 387     unlink($file_to_unlink);
 388 }
 389
 390 // Reset charset back, if we did some changes
 391 if ($reset_charset) {
 392     PMA_DBI_query('SET CHARACTER SET utf8');
 393     PMA_DBI_query('SET SESSION collation_connection =\'' . $collation_connection . '\'');
 394 }
 395
 396 // Show correct message
 397 if (!empty($id_bookmark) && $action_bookmark == 2) {
 398     $message = PMA_Message::success('strBookmarkDeleted');
 399     $display_query = $import_text;
 400     $error = FALSE; // unset error marker, it was used just to skip processing
 401 } elseif (!empty($id_bookmark) && $action_bookmark == 1) {
 402     $message = PMA_Message::notice('strShowingBookmark');
 403 } elseif ($bookmark_created) {
 404     $special_message = '[br]' . sprintf($strBookmarkCreated, htmlspecialchars($bkm_label));
 405 } elseif ($finished && !$error) {
 406     if ($import_type == 'query') {
 407         $message = PMA_Message::success();
 408     } else {
 409         if ($import_notice) {
 410             $message = PMA_Message::success('<em>'.$GLOBALS['strImportSuccessfullyFinished'].'</em>');
 411             $message->addParam($executed_queries);
 412
 413             $message->addString($import_notice);
 414         } else {
 415             $message = PMA_Message::success('strImportSuccessfullyFinished');
 416             $message->addParam($executed_queries);
 417         }
 418     }
 419 }
 420
 421 // Did we hit timeout? Tell it user.
 422 if ($timeout_passed) {
 423     $message = PMA_Message::error('strTimeoutPassed');
 424     if ($offset == 0 || (isset($original_skip) && $original_skip == $offset)) {
 425         $message->addString('strTimeoutNothingParsed');
 426     }
 427 }
 428
 429 // if there is any message, copy it into $_SESSION as well, so we can obtain it by AJAX call
 430 if (isset($message)) {
 431     $_SESSION['Import_message']['message'] = $message->getDisplay();
 432 //  $_SESSION['Import_message']['go_back_url'] = $goto.'?'.  PMA_generate_common_url();
 433 }
 434 // Parse and analyze the query, for correct db and table name
 435 // in case of a query typed in the query window
 436 // (but if the query is too large, in case of an imported file, the parser
 437 //  can choke on it so avoid parsing)
 438 if (strlen($sql_query) <= $GLOBALS['cfg']['MaxCharactersInDisplayedSQL']) {
 439     require_once './libraries/parse_analyze.lib.php';
 440 }
 441
 442 // There was an error?
 443 if (isset($my_die)) {
 444     foreach ($my_die AS $key => $die) {
 445         PMA_mysqlDie($die['error'], $die['sql'], '', $err_url, $error);
 446     }
 447 }
 448
 449 if ($go_sql) {
 450     require './sql.php';
 451 } else {
 452     $active_page = $goto;
 453     require './' . $goto;
 454 }
 455 exit();
 456 ?>