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 $js_to_run = '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     $show_error_header = TRUE;
  54     PMA_showMessage(sprintf($strUploadLimit, '[a@./Documentation.html#faq1_16@_blank]', '[/a]'));
  55     require './libraries/footer.inc.php';
  56 }
  57
  58 // Check needed parameters
  59 PMA_checkParameters(array('import_type', 'format'));
  60
  61 // We don't want anything special in format
  62 $format = PMA_securePath($format);
  63
  64 // Import functions
  65 require_once './libraries/import.lib.php';
  66
  67 // Create error and goto url
  68 if ($import_type == 'table') {
  69     $err_url = 'tbl_import.php?' . PMA_generate_common_url($db, $table);
  70     $goto = 'tbl_import.php';
  71 } elseif ($import_type == 'database') {
  72     $err_url = 'db_import.php?' . PMA_generate_common_url($db);
  73     $goto = 'db_import.php';
  74 } elseif ($import_type == 'server') {
  75     $err_url = 'server_import.php?' . PMA_generate_common_url();
  76     $goto = 'server_import.php';
  77 } else {
  78     if (empty($goto) || !preg_match('@^(server|db|tbl)(_[a-z]*)*\.php$@i', $goto)) {
  79         if (strlen($table) && strlen($db)) {
  80             $goto = 'tbl_structure.php';
  81         } elseif (strlen($db)) {
  82             $goto = 'db_structure.php';
  83         } else {
  84             $goto = 'server_sql.php';
  85         }
  86     }
  87     if (strlen($table) && strlen($db)) {
  88         $common = PMA_generate_common_url($db, $table);
  89     } elseif (strlen($db)) {
  90         $common = PMA_generate_common_url($db);
  91     } else {
  92         $common = PMA_generate_common_url();
  93     }
  94     $err_url  = $goto
  95               . '?' . $common
  96               . (preg_match('@^tbl_[a-z]*\.php$@', $goto) ? '&amp;table=' . urlencode($table) : '');
  97 }
  98
  99
 100 if (strlen($db)) {
 101     PMA_DBI_select_db($db);
 102 }
 103
 104 @set_time_limit($cfg['ExecTimeLimit']);
 105 if (!empty($cfg['MemoryLimit'])) {
 106     @ini_set('memory_limit', $cfg['MemoryLimit']);
 107 }
 108
 109 $timestamp = time();
 110 if (isset($allow_interrupt)) {
 111     $maximum_time = ini_get('max_execution_time');
 112 } else {
 113     $maximum_time = 0;
 114 }
 115
 116 // set default values
 117 $timeout_passed = FALSE;
 118 $error = FALSE;
 119 $read_multiply = 1;
 120 $finished = FALSE;
 121 $offset = 0;
 122 $max_sql_len = 0;
 123 $file_to_unlink = '';
 124 $sql_query = '';
 125 $sql_query_disabled = FALSE;
 126 $go_sql = FALSE;
 127 $executed_queries = 0;
 128 $run_query = TRUE;
 129 $charset_conversion = FALSE;
 130 $reset_charset = FALSE;
 131 $bookmark_created = FALSE;
 132
 133 // Bookmark Support: get a query back from bookmark if required
 134 if (!empty($id_bookmark)) {
 135     require_once './libraries/bookmark.lib.php';
 136     switch ($action_bookmark) {
 137         case 0: // bookmarked query that have to be run
 138             $import_text = PMA_queryBookmarks($db, $cfg['Bookmark'], $id_bookmark, 'id', isset($action_bookmark_all));
 139             if (isset($bookmark_variable) && !empty($bookmark_variable)) {
 140                 $import_text = preg_replace('|/\*(.*)\[VARIABLE\](.*)\*/|imsU', '${1}' . PMA_sqlAddslashes($bookmark_variable) . '${2}', $import_text);
 141             }
 142
 143             // refresh left frame on changes in table or db structure
 144             if (preg_match('/^(CREATE|ALTER|DROP)\s+(VIEW|TABLE|DATABASE|SCHEMA)\s+/i', $import_text)) {
 145                 $GLOBALS['reload'] = true;
 146             }
 147
 148             break;
 149         case 1: // bookmarked query that have to be displayed
 150             $import_text = PMA_queryBookmarks($db, $cfg['Bookmark'], $id_bookmark);
 151             $run_query = FALSE;
 152             break;
 153         case 2: // bookmarked query that have to be deleted
 154             $import_text = PMA_queryBookmarks($db, $cfg['Bookmark'], $id_bookmark);
 155             PMA_deleteBookmarks($db, $cfg['Bookmark'], $id_bookmark);
 156             $run_query = FALSE;
 157             $error = TRUE; // this is kind of hack to skip processing the query
 158             break;
 159     }
 160 } // end bookmarks reading
 161
 162 // Do no run query if we show PHP code
 163 if (isset($GLOBALS['show_as_php'])) {
 164     $run_query = FALSE;
 165     $go_sql = TRUE;
 166 }
 167
 168 // Store the query as a bookmark before executing it if bookmarklabel was given
 169 if (!empty($bkm_label) && !empty($import_text)) {
 170     require_once './libraries/bookmark.lib.php';
 171     $bfields = array(
 172                  'dbase' => $db,
 173                  'user'  => $cfg['Bookmark']['user'],
 174                  'query' => urlencode($import_text),
 175                  'label' => $bkm_label
 176     );
 177
 178     // Should we replace bookmark?
 179     if (isset($bkm_replace)) {
 180         $bookmarks = PMA_listBookmarks($db, $cfg['Bookmark']);
 181         foreach ($bookmarks as $key => $val) {
 182             if ($val == $bkm_label) {
 183                 PMA_deleteBookmarks($db, $cfg['Bookmark'], $key);
 184             }
 185         }
 186     }
 187
 188     PMA_addBookmarks($bfields, $cfg['Bookmark'], isset($bkm_all_users));
 189
 190     $bookmark_created = TRUE;
 191 } // end store bookmarks
 192
 193 // We can not read all at once, otherwise we can run out of memory
 194 $memory_limit = trim(@ini_get('memory_limit'));
 195 // 2 MB as default
 196 if (empty($memory_limit)) {
 197     $memory_limit = 2 * 1024 * 1024;
 198 }
 199 // In case no memory limit we work on 10MB chunks
 200 if ($memory_limit = -1) {
 201     $memory_limit = 10 * 1024 * 1024;
 202 }
 203
 204 // Calculate value of the limit
 205 if (strtolower(substr($memory_limit, -1)) == 'm') {
 206     $memory_limit = (int)substr($memory_limit, 0, -1) * 1024 * 1024;
 207 } elseif (strtolower(substr($memory_limit, -1)) == 'k') {
 208     $memory_limit = (int)substr($memory_limit, 0, -1) * 1024;
 209 } elseif (strtolower(substr($memory_limit, -1)) == 'g') {
 210     $memory_limit = (int)substr($memory_limit, 0, -1) * 1024 * 1024 * 1024;
 211 } else {
 212     $memory_limit = (int)$memory_limit;
 213 }
 214
 215 $read_limit = $memory_limit / 8; // Just to be sure, there might be lot of memory needed for uncompression
 216
 217 // handle filenames
 218 if (!empty($local_import_file) && !empty($cfg['UploadDir'])) {
 219
 220     // sanitize $local_import_file as it comes from a POST
 221     $local_import_file = PMA_securePath($local_import_file);
 222
 223     $import_file  = PMA_userDir($cfg['UploadDir']) . $local_import_file;
 224 } elseif (empty($import_file) || !is_uploaded_file($import_file))  {
 225     $import_file  = 'none';
 226 }
 227
 228 // Do we have file to import?
 229 if ($import_file != 'none' && !$error) {
 230     // work around open_basedir and other limitations
 231     $open_basedir = @ini_get('open_basedir');
 232
 233     // If we are on a server with open_basedir, we must move the file
 234     // before opening it. The doc explains how to create the "./tmp"
 235     // directory
 236
 237     if (!empty($open_basedir)) {
 238
 239         $tmp_subdir = (PMA_IS_WINDOWS ? '.\\tmp\\' : './tmp/');
 240
 241         // function is_writeable() is valid on PHP3 and 4
 242         if (is_writeable($tmp_subdir)) {
 243             $import_file_new = $tmp_subdir . basename($import_file);
 244             if (move_uploaded_file($import_file, $import_file_new)) {
 245                 $import_file = $import_file_new;
 246                 $file_to_unlink = $import_file_new;
 247             }
 248         }
 249     }
 250
 251     // Handle file compression
 252     $compression = PMA_detectCompression($import_file);
 253     if ($compression === FALSE) {
 254         $message = $strFileCouldNotBeRead;
 255         $show_error_header = TRUE;
 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                     $message = sprintf($strUnsupportedCompressionDetected, $compression);
 264                     $show_error_header = TRUE;
 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                     $message = sprintf($strUnsupportedCompressionDetected, $compression);
 273                     $show_error_header = TRUE;
 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 = $strNoFilesFoundInZip;
 284                         $show_error_header = TRUE;
 285                         $error = TRUE;
 286                     } elseif ($import_handle->GetError(0) != 0) {
 287                         $message = $strErrorInZipFile . ' ' . $import_handle->GetErrorMsg(0);
 288                         $show_error_header = TRUE;
 289                         $error = TRUE;
 290                     } else {
 291                         $import_text = $import_handle->GetData(0);
 292                     }
 293                     // We don't need to store it further
 294                     $import_handle = '';
 295                 } else {
 296                     $message = sprintf($strUnsupportedCompressionDetected, $compression);
 297                     $show_error_header = TRUE;
 298                     $error = TRUE;
 299                 }
 300                 break;
 301             case 'none':
 302                 $import_handle = @fopen($import_file, 'r');
 303                 break;
 304             default:
 305                 $message = sprintf($strUnsupportedCompressionDetected, $compression);
 306                 $show_error_header = TRUE;
 307                 $error = TRUE;
 308                 break;
 309         }
 310     }
 311     if (!$error && $import_handle === FALSE) {
 312         $message = $strFileCouldNotBeRead;
 313         $show_error_header = TRUE;
 314         $error = TRUE;
 315     }
 316 } elseif (!$error) {
 317     if (!isset($import_text) || empty($import_text)) {
 318         $message = $strNoDataReceived;
 319         $show_error_header = TRUE;
 320         $error = TRUE;
 321     }
 322 }
 323
 324 // Convert the file's charset if necessary
 325 if ($cfg['AllowAnywhereRecoding'] && $allow_recoding
 326     && isset($charset_of_file)) {
 327     if ($charset_of_file != $charset) {
 328         $charset_conversion = TRUE;
 329     }
 330 } elseif (PMA_MYSQL_INT_VERSION >= 40100
 331     && isset($charset_of_file) && $charset_of_file != 'utf8') {
 332     PMA_DBI_query('SET NAMES \'' . $charset_of_file . '\'');
 333     // We can not show query in this case, it is in different charset
 334     $sql_query_disabled = TRUE;
 335     $reset_charset = TRUE;
 336 }
 337
 338 // Something to skip?
 339 if (!$error && isset($skip)) {
 340     $original_skip = $skip;
 341     while ($skip > 0) {
 342         PMA_importGetNextChunk($skip < $read_limit ? $skip : $read_limit);
 343         $read_multiply = 1; // Disable read progresivity, otherwise we eat all memory!
 344         $skip -= $read_limit;
 345     }
 346     unset($skip);
 347 }
 348
 349 if (!$error) {
 350     // Check for file existance
 351     if (!file_exists('./libraries/import/' . $format . '.php')) {
 352         $error = TRUE;
 353         $message = $strCanNotLoadImportPlugins;
 354         $show_error_header = TRUE;
 355     } else {
 356         // Do the real import
 357         $plugin_param = $import_type;
 358         require './libraries/import/' . $format . '.php';
 359     }
 360 }
 361
 362 // Cleanup temporary file
 363 if ($file_to_unlink != '') {
 364     unlink($file_to_unlink);
 365 }
 366
 367 // Reset charset back, if we did some changes
 368 if ($reset_charset) {
 369     PMA_DBI_query('SET CHARACTER SET utf8');
 370     PMA_DBI_query('SET SESSION collation_connection =\'' . $collation_connection . '\'');
 371 }
 372
 373 // Show correct message
 374 if (!empty($id_bookmark) && $action_bookmark == 2) {
 375     $message = $strBookmarkDeleted;
 376     $display_query = $import_text;
 377     $error = FALSE; // unset error marker, it was used just to skip processing
 378 } elseif (!empty($id_bookmark) && $action_bookmark == 1) {
 379     $message = $strShowingBookmark;
 380 } elseif ($bookmark_created) {
 381     $special_message = '[br]' . sprintf($strBookmarkCreated, htmlspecialchars($bkm_label));
 382 } elseif ($finished && !$error) {
 383     if ($import_type == 'query') {
 384         $message = $strSuccess;
 385     } else {
 386         $message = sprintf($strImportSuccessfullyFinished, $executed_queries);
 387     }
 388 }
 389
 390 // Did we hit timeout? Tell it user.
 391 if ($timeout_passed) {
 392     $message = $strTimeoutPassed;
 393     if ($offset == 0 || (isset($original_skip) && $original_skip == $offset)) {
 394         $message .= ' ' . $strTimeoutNothingParsed;
 395     }
 396 }
 397
 398 // Parse and analyze the query, for correct db and table name
 399 // in case of a query typed in the query window
 400 require_once './libraries/parse_analyze.lib.php';
 401
 402 // There was an error?
 403 if (isset($my_die)) {
 404     foreach ($my_die AS $key => $die) {
 405         PMA_mysqlDie($die['error'], $die['sql'], '', $err_url, $error);
 406     }
 407 }
 408
 409 if ($go_sql) {
 410     require './sql.php';
 411 } else {
 412     $active_page = $goto;
 413     require './' . $goto;
 414 }
 415 exit();
 416 ?>