import.php

   1 <?php
   2 /* $Id$ */
   3 // vim: expandtab sw=4 ts=4 sts=4:
   4
   5 /* Core script for import, this is just the glue around all other stuff */
   6
   7 /**
   8  * Get the variables sent or posted to this script and a core script
   9  */
  10 require_once('./libraries/common.lib.php');
  11 $js_to_run = 'functions.js';
  12
  13 // default values
  14 $GLOBALS['reload'] = false;
  15
  16 // Are we just executing plain query or sql file? (eg. non import, but query box/window run)
  17 if (!empty($sql_query)) {
  18     // run SQL query
  19     $import_text = $sql_query;
  20     $import_type = 'query';
  21     $format = 'sql';
  22
  23     // refresh left frame on changes in table or db structure
  24     if (preg_match('/^(CREATE|ALTER|DROP)\s+(VIEW|TABLE|DATABASE|SCHEMA)\s+/i', $sql_query)) {
  25         $GLOBALS['reload'] = true;
  26     }
  27
  28     unset($sql_query);
  29 } elseif (!empty($sql_localfile)) {
  30     // run SQL file on server
  31     $local_import_file = $sql_localfile;
  32     $import_type = 'queryfile';
  33     $format = 'sql';
  34     unset($sql_localfile);
  35 } elseif (!empty($sql_file)) {
  36     // run uploaded SQL file
  37     $import_file = $sql_file;
  38     $import_type = 'queryfile';
  39     $format = 'sql';
  40     unset($sql_file);
  41 } elseif (!empty($id_bookmark)) {
  42     // run bookmark
  43     $import_type = 'query';
  44     $format = 'sql';
  45 }
  46
  47 // If we didn't get any parameters, either user called this directly, or
  48 // upload limit has been reached, let's assume the second possibility.
  49 if ($_POST == array() && $_GET == array()) {
  50     require_once('./libraries/header.inc.php');
  51     $show_error_header = TRUE;
  52     PMA_showMessage(sprintf($strUploadLimit, '[a@./Documentation.html#faq1_16@_blank]', '[/a]'));
  53     require('./libraries/footer.inc.php');
  54 }
  55
  56 // Check needed parameters
  57 PMA_checkParameters(array('import_type', 'format'));
  58
  59 // We don't want anything special in format
  60 $format = PMA_securePath($format);
  61
  62 // Import functions
  63 require_once('./libraries/import.lib.php');
  64
  65 // Create error and goto url
  66 if ($import_type == 'table') {
  67     $err_url = 'tbl_import.php?' . PMA_generate_common_url($db, $table);
  68     $goto = 'tbl_import.php';
  69 } elseif ($import_type == 'database') {
  70     $err_url = 'db_import.php?' . PMA_generate_common_url($db);
  71     $goto = 'db_import.php';
  72 } elseif ($import_type == 'server') {
  73     $err_url = 'server_import.php?' . PMA_generate_common_url();
  74     $goto = 'server_import.php';
  75 } else {
  76     if (empty($goto) || !preg_match('@^(server|db|tbl)(_[a-z]*)*\.php$@i', $goto)) {
  77         if (isset($table) && isset($db)) {
  78             $goto = 'tbl_properties_structure.php';
  79         } elseif (isset($db)) {
  80             $goto = 'db_details_structure.php';
  81         } else {
  82             $goto = 'server_sql.php';
  83         }
  84     }
  85     if (isset($table) && isset($db)) {
  86         $common = PMA_generate_common_url($db, $table);
  87     } elseif (isset($db)) {
  88         $common = PMA_generate_common_url($db);
  89     } else {
  90         $common = PMA_generate_common_url();
  91     }
  92     $err_url  = $goto
  93               . '?' . $common
  94               . (preg_match('@^tbl_properties(_[a-z]*)?\.php$@', $goto) ? '&amp;table=' . urlencode($table) : '');
  95 }
  96
  97
  98 if (isset($db)) {
  99     PMA_DBI_select_db($db);
 100 }
 101
 102 @set_time_limit($cfg['ExecTimeLimit']);
 103 if (!empty($cfg['MemoryLimit'])) {
 104     @ini_set('memory_limit', $cfg['MemoryLimit']);
 105 }
 106
 107 $timestamp = time();
 108 if (isset($allow_interrupt)) {
 109     $maximum_time = ini_get('max_execution_time');
 110 } else {
 111     $maximum_time = 0;
 112 }
 113
 114 // set default values
 115 $timeout_passed = FALSE;
 116 $error = FALSE;
 117 $read_multiply = 1;
 118 $finished = FALSE;
 119 $offset = 0;
 120 $max_sql_len = 0;
 121 $file_to_unlink = '';
 122 $sql_query = '';
 123 $sql_query_disabled = FALSE;
 124 $go_sql = FALSE;
 125 $executed_queries = 0;
 126 $run_query = TRUE;
 127 $charset_conversion = FALSE;
 128 $reset_charset = FALSE;
 129 $bookmark_created = FALSE;
 130
 131 // Bookmark Support: get a query back from bookmark if required
 132 if (!empty($id_bookmark)) {
 133     require_once('./libraries/bookmark.lib.php');
 134     switch ($action_bookmark) {
 135         case 0: // bookmarked query that have to be run
 136             $import_text = PMA_queryBookmarks($db, $cfg['Bookmark'], $id_bookmark, 'id', isset($action_bookmark_all));
 137             if (isset($bookmark_variable) && !empty($bookmark_variable)) {
 138                 $import_text = preg_replace('|/\*(.*)\[VARIABLE\](.*)\*/|imsU', '${1}' . PMA_sqlAddslashes($bookmark_variable) . '${2}', $import_text);
 139             }
 140
 141             // refresh left frame on changes in table or db structure
 142             if (preg_match('/^(CREATE|ALTER|DROP)\s+(VIEW|TABLE|DATABASE|SCHEMA)\s+/i', $import_text)) {
 143                 $GLOBALS['reload'] = true;
 144             }
 145
 146             break;
 147         case 1: // bookmarked query that have to be displayed
 148             $import_text = PMA_queryBookmarks($db, $cfg['Bookmark'], $id_bookmark);
 149             $run_query = FALSE;
 150             break;
 151         case 2: // bookmarked query that have to be deleted
 152             $import_text = PMA_queryBookmarks($db, $cfg['Bookmark'], $id_bookmark);
 153             PMA_deleteBookmarks($db, $cfg['Bookmark'], $id_bookmark);
 154             $run_query = FALSE;
 155             $error = TRUE; // this is kind of hack to skip processing the query
 156             break;
 157     }
 158 } // end bookmarks reading
 159
 160 // Store the query as a bookmark before executing it if bookmarklabel was given
 161 if (!empty($bkm_label) && !empty($import_text)) {
 162     require_once('./libraries/bookmark.lib.php');
 163     $bfields = array(
 164                  'dbase' => $db,
 165                  'user'  => $cfg['Bookmark']['user'],
 166                  'query' => urlencode($import_text),
 167                  'label' => $bkm_label
 168     );
 169
 170     // Should we replace bookmark?
 171     if (isset($bkm_replace)) {
 172         $bookmarks = PMA_listBookmarks($db, $cfg['Bookmark']);
 173         foreach ($bookmarks as $key => $val) {
 174             if ($val == $bkm_label) {
 175                 PMA_deleteBookmarks($db, $cfg['Bookmark'], $key);
 176             }
 177         }
 178     }
 179
 180     PMA_addBookmarks($bfields, $cfg['Bookmark'], isset($bkm_all_users));
 181
 182     $bookmark_created = TRUE;
 183 } // end store bookmarks
 184
 185 // We can not read all at once, otherwise we can run out of memory
 186 $memory_limit = trim(@ini_get('memory_limit'));
 187 // 2 MB as default
 188 if (empty($memory_limit)) {
 189     $memory_limit = 2 * 1024 * 1024;
 190 }
 191 // In case no memory limit we work on 10MB chunks
 192 if ($memory_limit = -1) {
 193     $memory_limit = 10 * 1024 * 1024;
 194 }
 195
 196 // Calculate value of the limit
 197 if (strtolower(substr($memory_limit, -1)) == 'm') {
 198     $memory_limit = (int)substr($memory_limit, 0, -1) * 1024 * 1024;
 199 } elseif (strtolower(substr($memory_limit, -1)) == 'k') {
 200     $memory_limit = (int)substr($memory_limit, 0, -1) * 1024;
 201 } elseif (strtolower(substr($memory_limit, -1)) == 'g') {
 202     $memory_limit = (int)substr($memory_limit, 0, -1) * 1024 * 1024 * 1024;
 203 } else {
 204     $memory_limit = (int)$memory_limit;
 205 }
 206
 207 $read_limit = $memory_limit / 4; // Just to be sure, there might be lot of memory needed for uncompression
 208
 209 // handle filenames
 210 if (!empty($local_import_file) && !empty($cfg['UploadDir'])) {
 211
 212     // sanitize $local_import_file as it comes from a POST
 213     $local_import_file = PMA_securePath($local_import_file);
 214
 215     $import_file  = PMA_userDir($cfg['UploadDir']) . $local_import_file;
 216 } elseif (empty($import_file) || !is_uploaded_file($import_file))  {
 217     $import_file  = 'none';
 218 }
 219
 220 // Do we have file to import?
 221 if ($import_file != 'none' && !$error) {
 222     // work around open_basedir and other limitations
 223     $open_basedir = @ini_get('open_basedir');
 224
 225     // If we are on a server with open_basedir, we must move the file
 226     // before opening it. The doc explains how to create the "./tmp"
 227     // directory
 228
 229     if (!empty($open_basedir)) {
 230
 231         $tmp_subdir = (PMA_IS_WINDOWS ? '.\\tmp\\' : './tmp/');
 232
 233         // function is_writeable() is valid on PHP3 and 4
 234         if (is_writeable($tmp_subdir)) {
 235             $import_file_new = $tmp_subdir . basename($import_file);
 236             if (move_uploaded_file($import_file, $import_file_new)) {
 237                 $import_file = $import_file_new;
 238                 $file_to_unlink = $import_file_new;
 239             }
 240         }
 241     }
 242
 243     // Handle file compression
 244     $compression = PMA_detectCompression($import_file);
 245     if ($compression === FALSE) {
 246         $message = $strFileCouldNotBeRead;
 247         $show_error_header = TRUE;
 248         $error = TRUE;
 249     } else {
 250         switch ($compression) {
 251             case 'application/bzip2':
 252                 if ($cfg['BZipDump'] && @function_exists('bzopen')) {
 253                     $import_handle = @bzopen($import_file, 'r');
 254                 } else {
 255                     $message = sprintf($strUnsupportedCompressionDetected, $compression);
 256                     $show_error_header = TRUE;
 257                     $error = TRUE;
 258                 }
 259                 break;
 260             case 'application/gzip':
 261                 if ($cfg['GZipDump'] && @function_exists('gzopen')) {
 262                     $import_handle = @gzopen($import_file, 'r');
 263                 } else {
 264                     $message = sprintf($strUnsupportedCompressionDetected, $compression);
 265                     $show_error_header = TRUE;
 266                     $error = TRUE;
 267                 }
 268                 break;
 269             case 'application/zip':
 270                 if ($cfg['GZipDump'] && @function_exists('gzinflate')) {
 271                     include_once('./libraries/unzip.lib.php');
 272                     $import_handle = new SimpleUnzip();
 273                     $import_handle->ReadFile($import_file);
 274                     if ($import_handle->Count() == 0) {
 275                         $message = $strNoFilesFoundInZip;
 276                         $show_error_header = TRUE;
 277                         $error = TRUE;
 278                     } elseif ($import_handle->GetError(0) != 0) {
 279                         $message = $strErrorInZipFile . ' ' . $import_handle->GetErrorMsg(0);
 280                         $show_error_header = TRUE;
 281                         $error = TRUE;
 282                     } else {
 283                         $import_text = $import_handle->GetData(0);
 284                     }
 285                     // We don't need to store it further
 286                     $import_handle = '';
 287                 } else {
 288                     $message = sprintf($strUnsupportedCompressionDetected, $compression);
 289                     $show_error_header = TRUE;
 290                     $error = TRUE;
 291                 }
 292                 break;
 293             case 'none':
 294                 $import_handle = @fopen($import_file, 'r');
 295                 break;
 296             default:
 297                 $message = sprintf($strUnsupportedCompressionDetected, $compression);
 298                 $show_error_header = TRUE;
 299                 $error = TRUE;
 300                 break;
 301         }
 302     }
 303     if (!$error && $import_handle === FALSE) {
 304         $message = $strFileCouldNotBeRead;
 305         $show_error_header = TRUE;
 306         $error = TRUE;
 307     }
 308 } elseif (!$error) {
 309     if (!isset($import_text) || empty($import_text)) {
 310         $message = $strNothingToImport;
 311         $show_error_header = TRUE;
 312         $error = TRUE;
 313     }
 314 }
 315
 316 // Convert the file's charset if necessary
 317 if ($cfg['AllowAnywhereRecoding'] && $allow_recoding
 318     && isset($charset_of_file)) {
 319     if ($charset_of_file != $charset) {
 320         $charset_conversion = TRUE;
 321     }
 322 } elseif (PMA_MYSQL_INT_VERSION >= 40100
 323     && isset($charset_of_file) && $charset_of_file != 'utf8') {
 324     PMA_DBI_query('SET NAMES \'' . $charset_of_file . '\'');
 325     // We can not show query in this case, it is in different charset
 326     $sql_query_disabled = TRUE;
 327     $reset_charset = TRUE;
 328 }
 329
 330 // Something to skip?
 331 if (!$error && isset($skip)) {
 332     $original_skip = $skip;
 333     while ($skip > 0) {
 334         PMA_importGetNextChunk($skip < $read_limit ? $skip : $read_limit);
 335         $read_multiply = 1; // Disable read progresivity, otherwise we eat all memory!
 336         $skip -= $read_limit;
 337     }
 338     unset($skip);
 339 }
 340
 341 if (!$error) {
 342     // Check for file existance
 343     if (!file_exists('./libraries/import/' . $format . '.php')) {
 344         $error = TRUE;
 345         $message = $strCanNotLoadImportPlugins;
 346         $show_error_header = TRUE;
 347     } else {
 348         // Do the real import
 349         $plugin_param = $import_type;
 350         require('./libraries/import/' . $format . '.php');
 351     }
 352 }
 353
 354 // Cleanup temporary file
 355 if ($file_to_unlink != '') {
 356     unlink($file_to_unlink);
 357 }
 358
 359 // Reset charset back, if we did some changes
 360 if ($reset_charset) {
 361     PMA_DBI_query('SET CHARACTER SET utf8');
 362     PMA_DBI_query('SET SESSION collation_connection =\'' . $collation_connection . '\'');
 363 }
 364
 365 // Show correct message
 366 if (!empty($id_bookmark) && $action_bookmark == 2) {
 367     $message = $strBookmarkDeleted;
 368     $display_query = $import_text;
 369     $error = FALSE; // unset error marker, it was used just to skip processing
 370 } elseif (!empty($id_bookmark) && $action_bookmark == 1) {
 371     $message = $strShowingBookmark;
 372 } elseif ($bookmark_created) {
 373     $special_message = '[br]' . sprintf($strBookmarkCreated, htmlspecialchars($bkm_label));
 374 } elseif ($finished && !$error) {
 375     if ($import_type == 'query') {
 376         $message = $strSuccess;
 377     } else {
 378         $message = sprintf($strImportSuccessfullyFinished, $executed_queries);
 379     }
 380 }
 381
 382 // Did we hit timeout? Tell it user.
 383 if ($timeout_passed) {
 384     $message = $strTimeoutPassed;
 385     if ($offset == 0 || (isset($original_skip) && $original_skip == $offset)) {
 386         $message .= ' ' . $strTimeoutNothingParsed;
 387     }
 388 }
 389
 390 // Display back import page
 391 require_once('./libraries/header.inc.php');
 392
 393 // There was an error?
 394 if (isset($my_die)) {
 395     foreach ($my_die AS $key => $die) {
 396         PMA_mysqlDie($die['error'], $die['sql'], '', $err_url, $error);
 397         echo '<hr />';
 398     }
 399 }
 400
 401 if ($go_sql) {
 402     if (isset($_GET['pos'])) {
 403         // comes from the Refresh link
 404         $pos = $_GET['pos'];
 405     } else {
 406         // Set pos to zero to possibly append limit
 407         $pos = 0;
 408     }
 409     require('./sql.php');
 410 } else {
 411     $active_page = $goto;
 412     require('./' . $goto);
 413 }
 414 exit();
 415 ?>