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