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