Viewing file:  export.php (24.37 KB) -rw-rw-rw-
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* @todo too much die here, or?
* @version $Id: export.php 12897 2009-08-30 12:43:07Z lem9 $
* @package phpMyAdmin
*/
/**
* Get the variables sent or posted to this script and a core script
*/
require_once './libraries/common.inc.php';
require_once './libraries/zip.lib.php';
require_once './libraries/plugin_interface.lib.php';
PMA_checkParameters(array('what', 'export_type'));
// Scan plugins
$export_list = PMA_getPlugins('./libraries/export/', array('export_type' => $export_type, 'single_table' => isset($single_table)));
// Backward compatbility
$type = $what;
// Check export type
if (!isset($export_list[$type])) {
die('Bad type!');
}
/**
* valid compression methods
*/
$compression_methods = array(
'zip',
'gzip',
'bzip',
);
/**
* init and variable checking
*/
$compression = false;
$onserver = false;
$save_on_server = false;
$buffer_needed = false;
if (empty($_REQUEST['asfile'])) {
$asfile = false;
} else {
$asfile = true;
if (in_array($_REQUEST['compression'], $compression_methods)) {
$compression = $_REQUEST['compression'];
$buffer_needed = true;
}
if (!empty($_REQUEST['onserver'])) {
$onserver = $_REQUEST['onserver'];
// Will we save dump on server?
$save_on_server = ! empty($cfg['SaveDir']) && $onserver;
}
}
// Does export require to be into file?
if (isset($export_list[$type]['force_file']) && ! $asfile) {
$message = PMA_Message::error('strExportMustBeFile');
$GLOBALS['js_include'][] = 'functions.js';
require_once './libraries/header.inc.php';
if ($export_type == 'server') {
$active_page = 'server_export.php';
require './server_export.php';
} elseif ($export_type == 'database') {
$active_page = 'db_export.php';
require './db_export.php';
} else {
$active_page = 'tbl_export.php';
require './tbl_export.php';
}
exit();
}
// Generate error url and check for needed variables
if ($export_type == 'server') {
$err_url = 'server_export.php?' . PMA_generate_common_url();
} elseif ($export_type == 'database' && strlen($db)) {
$err_url = 'db_export.php?' . PMA_generate_common_url($db);
// Check if we have something to export
if (isset($table_select)) {
$tables = $table_select;
} else {
$tables = array();
}
} elseif ($export_type == 'table' && strlen($db) && strlen($table)) {
$err_url = 'tbl_export.php?' . PMA_generate_common_url($db, $table);
} else {
die('Bad parameters!');
}
// Get the functions specific to the export type
require './libraries/export/' . PMA_securePath($type) . '.php';
/**
* Increase time limit for script execution and initializes some variables
*/
@set_time_limit($cfg['ExecTimeLimit']);
if (!empty($cfg['MemoryLimit'])) {
@ini_set('memory_limit', $cfg['MemoryLimit']);
}
// Start with empty buffer
$dump_buffer = '';
$dump_buffer_len = 0;
// We send fake headers to avoid browser timeout when buffering
$time_start = time();
/**
* Output handler for all exports, if needed buffering, it stores data into
* $dump_buffer, otherwise it prints thems out.
*
* @param string the insert statement
*
* @return bool Whether output suceeded
*/
function PMA_exportOutputHandler($line)
{
global $time_start, $dump_buffer, $dump_buffer_len, $save_filename;
// Kanji encoding convert feature
if ($GLOBALS['output_kanji_conversion']) {
$line = PMA_kanji_str_conv($line, $GLOBALS['knjenc'], isset($GLOBALS['xkana']) ? $GLOBALS['xkana'] : '');
}
// If we have to buffer data, we will perform everything at once at the end
if ($GLOBALS['buffer_needed']) {
$dump_buffer .= $line;
if ($GLOBALS['onfly_compression']) {
$dump_buffer_len += strlen($line);
if ($dump_buffer_len > $GLOBALS['memory_limit']) {
if ($GLOBALS['output_charset_conversion']) {
$dump_buffer = PMA_convert_string($GLOBALS['charset'], $GLOBALS['charset_of_file'], $dump_buffer);
}
// as bzipped
if ($GLOBALS['compression'] == 'bzip' && @function_exists('bzcompress')) {
$dump_buffer = bzcompress($dump_buffer);
}
// as a gzipped file
elseif ($GLOBALS['compression'] == 'gzip' && @function_exists('gzencode')) {
// without the optional parameter level because it bug
$dump_buffer = gzencode($dump_buffer);
}
if ($GLOBALS['save_on_server']) {
$write_result = @fwrite($GLOBALS['file_handle'], $dump_buffer);
if (!$write_result || ($write_result != strlen($dump_buffer))) {
$GLOBALS['message'] = PMA_Message::error('strNoSpace');
$GLOBALS['message']->addParam($save_filename);
return false;
}
} else {
echo $dump_buffer;
}
$dump_buffer = '';
$dump_buffer_len = 0;
}
} else {
$time_now = time();
if ($time_start >= $time_now + 30) {
$time_start = $time_now;
header('X-pmaPing: Pong');
} // end if
}
} else {
if ($GLOBALS['asfile']) {
if ($GLOBALS['output_charset_conversion']) {
$line = PMA_convert_string($GLOBALS['charset'], $GLOBALS['charset_of_file'], $line);
}
if ($GLOBALS['save_on_server'] && strlen($line) > 0) {
$write_result = @fwrite($GLOBALS['file_handle'], $line);
if (!$write_result || ($write_result != strlen($line))) {
$GLOBALS['message'] = PMA_Message::error('strNoSpace');
$GLOBALS['message']->addParam($save_filename);
return false;
}
$time_now = time();
if ($time_start >= $time_now + 30) {
$time_start = $time_now;
header('X-pmaPing: Pong');
} // end if
} else {
// We export as file - output normally
echo $line;
}
} else {
// We export as html - replace special chars
echo htmlspecialchars($line);
}
}
return true;
} // end of the 'PMA_exportOutputHandler()' function
// Defines the default <CR><LF> format. For SQL always use \n as MySQL wants this on all platforms.
if ($what == 'sql') {
$crlf = "\n";
} else {
$crlf = PMA_whichCrlf();
}
$output_kanji_conversion = function_exists('PMA_kanji_str_conv') && $type != 'xls';
// Do we need to convert charset?
$output_charset_conversion = $asfile && $cfg['AllowAnywhereRecoding']
&& isset($charset_of_file) && $charset_of_file != $charset
&& $type != 'xls';
// Use on the fly compression?
$onfly_compression = $GLOBALS['cfg']['CompressOnFly'] && ($compression == 'gzip' || $compression == 'bzip');
if ($onfly_compression) {
$memory_limit = trim(@ini_get('memory_limit'));
// 2 MB as default
if (empty($memory_limit)) {
$memory_limit = 2 * 1024 * 1024;
}
if (strtolower(substr($memory_limit, -1)) == 'm') {
$memory_limit = (int)substr($memory_limit, 0, -1) * 1024 * 1024;
} elseif (strtolower(substr($memory_limit, -1)) == 'k') {
$memory_limit = (int)substr($memory_limit, 0, -1) * 1024;
} elseif (strtolower(substr($memory_limit, -1)) == 'g') {
$memory_limit = (int)substr($memory_limit, 0, -1) * 1024 * 1024 * 1024;
} else {
$memory_limit = (int)$memory_limit;
}
// Some of memory is needed for other thins and as treshold.
// Nijel: During export I had allocated (see memory_get_usage function)
// approx 1.2MB so this comes from that.
if ($memory_limit > 1500000) {
$memory_limit -= 1500000;
}
// Some memory is needed for compression, assume 1/3
$memory_limit /= 8;
}
// Generate filename and mime type if needed
if ($asfile) {
$pma_uri_parts = parse_url($cfg['PmaAbsoluteUri']);
if ($export_type == 'server') {
if (isset($remember_template)) {
PMA_setCookie('pma_server_filename_template', $filename_template);
}
$filename = str_replace('__SERVER__', $GLOBALS['cfg']['Server']['host'], strftime($filename_template));
} elseif ($export_type == 'database') {
if (isset($remember_template)) {
PMA_setCookie('pma_db_filename_template', $filename_template);
}
$filename = str_replace('__DB__', $db, str_replace('__SERVER__', $GLOBALS['cfg']['Server']['host'], strftime($filename_template)));
} else {
if (isset($remember_template)) {
PMA_setCookie('pma_table_filename_template', $filename_template);
}
$filename = str_replace('__TABLE__', $table, str_replace('__DB__', $db, str_replace('__SERVER__', $GLOBALS['cfg']['Server']['host'], strftime($filename_template))));
}
// convert filename to iso-8859-1, it is safer
if (!(isset($cfg['AllowAnywhereRecoding']) && $cfg['AllowAnywhereRecoding'] )) {
$filename = PMA_convert_string($charset, 'iso-8859-1', $filename);
} else {
$filename = PMA_convert_string($convcharset, 'iso-8859-1', $filename);
}
// Grab basic dump extension and mime type
$filename .= '.' . $export_list[$type]['extension'];
$mime_type = $export_list[$type]['mime_type'];
// If dump is going to be compressed, set correct mime_type and add
// compression to extension
if ($compression == 'bzip') {
$filename .= '.bz2';
$mime_type = 'application/x-bzip2';
} elseif ($compression == 'gzip') {
$filename .= '.gz';
$mime_type = 'application/x-gzip';
} elseif ($compression == 'zip') {
$filename .= '.zip';
$mime_type = 'application/zip';
}
}
// Open file on server if needed
if ($save_on_server) {
$save_filename = PMA_userDir($cfg['SaveDir']) . preg_replace('@[/\\\\]@', '_', $filename);
unset($message);
if (file_exists($save_filename) && empty($onserverover)) {
$message = PMA_Message::error('strFileAlreadyExists');
$message->addParam($save_filename);
} else {
if (is_file($save_filename) && !is_writable($save_filename)) {
$message = PMA_Message::error('strNoPermission');
$message->addParam($save_filename);
} else {
if (!$file_handle = @fopen($save_filename, 'w')) {
$message = PMA_Message::error('strNoPermission');
$message->addParam($save_filename);
}
}
}
if (isset($message)) {
$GLOBALS['js_include'][] = 'functions.js';
require_once './libraries/header.inc.php';
if ($export_type == 'server') {
$active_page = 'server_export.php';
require './server_export.php';
} elseif ($export_type == 'database') {
$active_page = 'db_export.php';
require './db_export.php';
} else {
$active_page = 'tbl_export.php';
require './tbl_export.php';
}
exit();
}
}
/**
* Send headers depending on whether the user chose to download a dump file
* or not
*/
if (!$save_on_server) {
if ($asfile) {
// Download
// (avoid rewriting data containing HTML with anchors and forms;
// this was reported to happen under Plesk)
@ini_set('url_rewriter.tags','');
header('Content-Type: ' . $mime_type);
header('Expires: ' . gmdate('D, d M Y H:i:s') . ' GMT');
// lem9: Tested behavior of
// IE 5.50.4807.2300
// IE 6.0.2800.1106 (small glitch, asks twice when I click Open)
// IE 6.0.2900.2180
// Firefox 1.0.6
// in http and https
header('Content-Disposition: attachment; filename="' . $filename . '"');
if (PMA_USR_BROWSER_AGENT == 'IE') {
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
} else {
header('Pragma: no-cache');
// test case: exporting a database into a .gz file with Safari
// would produce files not having the current time
// (added this header for Safari but should not harm other browsers)
header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
}
} else {
// HTML
if ($export_type == 'database') {
$num_tables = count($tables);
if ($num_tables == 0) {
$message = PMA_Message::error('strNoTablesFound');
$GLOBALS['js_include'][] = 'functions.js';
require_once './libraries/header.inc.php';
$active_page = 'db_export.php';
require './db_export.php';
exit();
}
}
$backup_cfgServer = $cfg['Server'];
require_once './libraries/header.inc.php';
$cfg['Server'] = $backup_cfgServer;
unset($backup_cfgServer);
echo "\n" . '<div align="' . $cell_align_left . '">' . "\n";
//echo ' <pre>' . "\n";
echo ' <form name="nofunction">' . "\n"
// remove auto-select for now: there is no way to select
// only a part of the text; anyway, it should obey
// $cfg['TextareaAutoSelect']
//. ' <textarea name="sqldump" cols="50" rows="30" onclick="this.select();" id="textSQLDUMP" wrap="OFF">' . "\n";
. ' <textarea name="sqldump" cols="50" rows="30" id="textSQLDUMP" wrap="OFF">' . "\n";
} // end download
}
// Fake loop just to allow skip of remain of this code by break, I'd really
// need exceptions here :-)
do {
// Add possibly some comments to export
if (!PMA_exportHeader()) {
break;
}
// Will we need relation & co. setup?
$do_relation = isset($GLOBALS[$what . '_relation']);
$do_comments = isset($GLOBALS[$what . '_comments']);
$do_mime = isset($GLOBALS[$what . '_mime']);
if ($do_relation || $do_comments || $do_mime) {
require_once './libraries/relation.lib.php';
$cfgRelation = PMA_getRelationsParam();
}
if ($do_mime) {
require_once './libraries/transformations.lib.php';
}
// Include dates in export?
$do_dates = isset($GLOBALS[$what . '_dates']);
/**
* Builds the dump
*/
// Gets the number of tables if a dump of a database has been required
if ($export_type == 'server') {
if (isset($db_select)) {
$tmp_select = implode($db_select, '|');
$tmp_select = '|' . $tmp_select . '|';
}
// Walk over databases
foreach ($GLOBALS['pma']->databases as $current_db) {
if ((isset($tmp_select) && strpos(' ' . $tmp_select, '|' . $current_db . '|'))
|| !isset($tmp_select)) {
if (!PMA_exportDBHeader($current_db)) {
break 2;
}
if (!PMA_exportDBCreate($current_db)) {
break 2;
}
$tables = PMA_DBI_get_tables($current_db);
$views = array();
foreach ($tables as $table) {
// if this is a view, collect it for later; views must be exported
// after the tables
$is_view = PMA_Table::isView($current_db, $table);
if ($is_view) {
$views[] = $table;
}
if (isset($GLOBALS[$what . '_structure'])) {
// for a view, export a stand-in definition of the table
// to resolve view dependencies
if (!PMA_exportStructure($current_db, $table, $crlf, $err_url, $do_relation, $do_comments, $do_mime, $do_dates, $is_view ? 'stand_in' : 'create_table', $export_type)) {
break 3;
}
}
if (isset($GLOBALS[$what . '_data']) && ! $is_view) {
$local_query = 'SELECT * FROM ' . PMA_backquote($current_db) . '.' . PMA_backquote($table);
if (!PMA_exportData($current_db, $table, $crlf, $err_url, $local_query)) {
break 3;
}
}
// now export the triggers (needs to be done after the data because
// triggers can modify already imported tables)
if (isset($GLOBALS[$what . '_structure'])) {
if (!PMA_exportStructure($current_db, $table, $crlf, $err_url, $do_relation, $do_comments, $do_mime, $do_dates, 'triggers', $export_type)) {
break 2;
}
}
}
foreach($views as $view) {
// no data export for a view
if (isset($GLOBALS[$what . '_structure'])) {
if (!PMA_exportStructure($current_db, $view, $crlf, $err_url, $do_relation, $do_comments, $do_mime, $do_dates, 'create_view', $export_type)) {
break 3;
}
}
}
if (!PMA_exportDBFooter($current_db)) {
break 2;
}
}
}
} elseif ($export_type == 'database') {
if (!PMA_exportDBHeader($db)) {
break;
}
$i = 0;
$views = array();
// $tables contains the choices from the user (via $table_select)
foreach ($tables as $table) {
// if this is a view, collect it for later; views must be exported after
// the tables
$is_view = PMA_Table::isView($db, $table);
if ($is_view) {
$views[] = $table;
}
if (isset($GLOBALS[$what . '_structure'])) {
// for a view, export a stand-in definition of the table
// to resolve view dependencies
if (!PMA_exportStructure($db, $table, $crlf, $err_url, $do_relation, $do_comments, $do_mime, $do_dates, $is_view ? 'stand_in' : 'create_table', $export_type)) {
break 2;
}
}
if (isset($GLOBALS[$what . '_data']) && ! $is_view) {
$local_query = 'SELECT * FROM ' . PMA_backquote($db) . '.' . PMA_backquote($table);
if (!PMA_exportData($db, $table, $crlf, $err_url, $local_query)) {
break 2;
}
}
// now export the triggers (needs to be done after the data because
// triggers can modify already imported tables)
if (isset($GLOBALS[$what . '_structure'])) {
if (!PMA_exportStructure($db, $table, $crlf, $err_url, $do_relation, $do_comments, $do_mime, $do_dates, 'triggers', $export_type)) {
break 2;
}
}
}
foreach ($views as $view) {
// no data export for a view
if (isset($GLOBALS[$what . '_structure'])) {
if (!PMA_exportStructure($db, $view, $crlf, $err_url, $do_relation, $do_comments, $do_mime, $do_dates, 'create_view', $export_type)) {
break 2;
}
}
}
if (!PMA_exportDBFooter($db)) {
break;
}
} else {
if (!PMA_exportDBHeader($db)) {
break;
}
// We export just one table
if ($limit_to > 0 && $limit_from >= 0) {
$add_query = ' LIMIT '
. (($limit_from > 0) ? $limit_from . ', ' : '')
. $limit_to;
} else {
$add_query = '';
}
$is_view = PMA_Table::isView($db, $table);
if (isset($GLOBALS[$what . '_structure'])) {
if (!PMA_exportStructure($db, $table, $crlf, $err_url, $do_relation, $do_comments, $do_mime, $do_dates, $is_view ? 'create_view' : 'create_table', $export_type)) {
break;
}
}
// If this is an export of a single view, we have to export data;
// for example, a PDF report
if (isset($GLOBALS[$what . '_data'])) {
if (!empty($sql_query)) {
// only preg_replace if needed
if (!empty($add_query)) {
// remove trailing semicolon before adding a LIMIT
$sql_query = preg_replace('%;\s*$%', '', $sql_query);
}
$local_query = $sql_query . $add_query;
PMA_DBI_select_db($db);
} else {
$local_query = 'SELECT * FROM ' . PMA_backquote($db) . '.' . PMA_backquote($table) . $add_query;
}
if (!PMA_exportData($db, $table, $crlf, $err_url, $local_query)) {
break;
}
}
// now export the triggers (needs to be done after the data because
// triggers can modify already imported tables)
if (isset($GLOBALS[$what . '_structure'])) {
if (!PMA_exportStructure($db, $table, $crlf, $err_url, $do_relation, $do_comments, $do_mime, $do_dates, 'triggers', $export_type)) {
break 2;
}
}
if (!PMA_exportDBFooter($db)) {
break;
}
}
if (!PMA_exportFooter()) {
break;
}
} while (false);
// End of fake loop
if ($save_on_server && isset($message)) {
$GLOBALS['js_include'][] = 'functions.js';
require_once './libraries/header.inc.php';
if ($export_type == 'server') {
$active_page = 'server_export.php';
require './server_export.php';
} elseif ($export_type == 'database') {
$active_page = 'db_export.php';
require './db_export.php';
} else {
$active_page = 'tbl_export.php';
require './tbl_export.php';
}
exit();
}
/**
* Send the dump as a file...
*/
if (!empty($asfile)) {
// Convert the charset if required.
if ($output_charset_conversion) {
$dump_buffer = PMA_convert_string($GLOBALS['charset'], $GLOBALS['charset_of_file'], $dump_buffer);
}
// Do the compression
// 1. as a zipped file
if ($compression == 'zip') {
if (@function_exists('gzcompress')) {
$zipfile = new zipfile();
$zipfile -> addFile($dump_buffer, substr($filename, 0, -4));
$dump_buffer = $zipfile -> file();
}
}
// 2. as a bzipped file
elseif ($compression == 'bzip') {
if (@function_exists('bzcompress')) {
$dump_buffer = bzcompress($dump_buffer);
}
}
// 3. as a gzipped file
elseif ($compression == 'gzip') {
if (@function_exists('gzencode') && !@ini_get('zlib.output_compression')) {
// without the optional parameter level because it bug
$dump_buffer = gzencode($dump_buffer);
}
}
/* If ve saved on server, we have to close file now */
if ($save_on_server) {
$write_result = @fwrite($file_handle, $dump_buffer);
fclose($file_handle);
if (strlen($dump_buffer) !=0 && (!$write_result || ($write_result != strlen($dump_buffer)))) {
$message = new PMA_Message('strNoSpace', PMA_Message::ERROR, $save_filename);
} else {
$message = new PMA_Message('strDumpSaved', PMA_Message::SUCCESS, $save_filename);
}
$GLOBALS['js_include'][] = 'functions.js';
require_once './libraries/header.inc.php';
if ($export_type == 'server') {
$active_page = 'server_export.php';
require_once './server_export.php';
} elseif ($export_type == 'database') {
$active_page = 'db_export.php';
require_once './db_export.php';
} else {
$active_page = 'tbl_export.php';
require_once './tbl_export.php';
}
exit();
} else {
echo $dump_buffer;
}
}
/**
* Displays the dump...
*/
else {
/**
* Close the html tags and add the footers in dump is displayed on screen
*/
//echo ' </pre>' . "\n";
echo '</textarea>' . "\n"
. ' </form>' . "\n";
echo '</div>' . "\n";
echo "\n";
?>
<script type="text/javascript">
//<![CDATA[
var bodyWidth=null; var bodyHeight=null;
if (document.getElementById('textSQLDUMP')) {
bodyWidth = self.innerWidth;
bodyHeight = self.innerHeight;
if (!bodyWidth && !bodyHeight) {
if (document.compatMode && document.compatMode == "BackCompat") {
bodyWidth = document.body.clientWidth;
bodyHeight = document.body.clientHeight;
} else if (document.compatMode && document.compatMode == "CSS1Compat") {
bodyWidth = document.documentElement.clientWidth;
bodyHeight = document.documentElement.clientHeight;
}
}
document.getElementById('textSQLDUMP').style.width=(bodyWidth-50) + 'px';
document.getElementById('textSQLDUMP').style.height=(bodyHeight-100) + 'px';
}
//]]>
</script>
<?php
require_once './libraries/footer.inc.php';
} // end if
?>
|