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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Main export handling code
*
* @package PhpMyAdmin
*/
use PhpMyAdmin\Core;
use PhpMyAdmin\Encoding;
use PhpMyAdmin\Export;
use PhpMyAdmin\Plugins;
use PhpMyAdmin\Plugins\ExportPlugin;
use PhpMyAdmin\Relation;
use PhpMyAdmin\Sanitize;
use PhpMyAdmin\Url;
use PhpMyAdmin\Util;
use PhpMyAdmin\Response;
/**
* Get the variables sent or posted to this script and a core script
*/
include_once 'libraries/common.inc.php';
$response = Response::getInstance();
$header = $response->getHeader();
$scripts = $header->getScripts();
$scripts->addFile('export_output.js');
//check if it's the GET request to check export time out
if (isset($_GET['check_time_out'])) {
if (isset($_SESSION['pma_export_error'])) {
$err = $_SESSION['pma_export_error'];
unset($_SESSION['pma_export_error']);
echo "timeout";
} else {
echo "success";
}
exit;
}
/**
* Sets globals from $_POST
*
* - Please keep the parameters in order of their appearance in the form
* - Some of these parameters are not used, as the code below directly
* verifies from the superglobal $_POST or $_REQUEST
* TODO: this should be removed to avoid passing user input to GLOBALS
* without checking
*/
$post_params = array(
'db',
'table',
'what',
'single_table',
'export_type',
'export_method',
'quick_or_custom',
'db_select',
'table_select',
'table_structure',
'table_data',
'limit_to',
'limit_from',
'allrows',
'lock_tables',
'output_format',
'filename_template',
'maxsize',
'remember_template',
'charset',
'compression',
'as_separate_files',
'knjenc',
'xkana',
'htmlword_structure_or_data',
'htmlword_null',
'htmlword_columns',
'mediawiki_headers',
'mediawiki_structure_or_data',
'mediawiki_caption',
'pdf_structure_or_data',
'odt_structure_or_data',
'odt_relation',
'odt_comments',
'odt_mime',
'odt_columns',
'odt_null',
'codegen_structure_or_data',
'codegen_format',
'excel_null',
'excel_removeCRLF',
'excel_columns',
'excel_edition',
'excel_structure_or_data',
'yaml_structure_or_data',
'ods_null',
'ods_structure_or_data',
'ods_columns',
'json_structure_or_data',
'json_pretty_print',
'json_unicode',
'xml_structure_or_data',
'xml_export_events',
'xml_export_functions',
'xml_export_procedures',
'xml_export_tables',
'xml_export_triggers',
'xml_export_views',
'xml_export_contents',
'texytext_structure_or_data',
'texytext_columns',
'texytext_null',
'phparray_structure_or_data',
'sql_include_comments',
'sql_header_comment',
'sql_dates',
'sql_relation',
'sql_mime',
'sql_use_transaction',
'sql_disable_fk',
'sql_compatibility',
'sql_structure_or_data',
'sql_create_database',
'sql_drop_table',
'sql_procedure_function',
'sql_create_table',
'sql_create_view',
'sql_create_trigger',
'sql_if_not_exists',
'sql_auto_increment',
'sql_backquotes',
'sql_truncate',
'sql_delayed',
'sql_ignore',
'sql_type',
'sql_insert_syntax',
'sql_max_query_size',
'sql_hex_for_binary',
'sql_utc_time',
'sql_drop_database',
'sql_views_as_tables',
'sql_metadata',
'csv_separator',
'csv_enclosed',
'csv_escaped',
'csv_terminated',
'csv_null',
'csv_removeCRLF',
'csv_columns',
'csv_structure_or_data',
// csv_replace should have been here but we use it directly from $_POST
'latex_caption',
'latex_structure_or_data',
'latex_structure_caption',
'latex_structure_continued_caption',
'latex_structure_label',
'latex_relation',
'latex_comments',
'latex_mime',
'latex_columns',
'latex_data_caption',
'latex_data_continued_caption',
'latex_data_label',
'latex_null',
'aliases'
);
foreach ($post_params as $one_post_param) {
if (isset($_POST[$one_post_param])) {
$GLOBALS[$one_post_param] = $_POST[$one_post_param];
}
}
$table = $GLOBALS['table'];
PhpMyAdmin\Util::checkParameters(array('what', 'export_type'));
// sanitize this parameter which will be used below in a file inclusion
$what = Core::securePath($_POST['what']);
// export class instance, not array of properties, as before
/* @var $export_plugin ExportPlugin */
$export_plugin = Plugins::getPlugin(
"export",
$what,
'libraries/classes/Plugins/Export/',
array(
'export_type' => $export_type,
'single_table' => isset($single_table)
)
);
// Check export type
if (empty($export_plugin)) {
Core::fatalError(__('Bad type!'));
}
/**
* valid compression methods
*/
$compression_methods = array(
'zip',
'gzip'
);
/**
* init and variable checking
*/
$compression = false;
$onserver = false;
$save_on_server = false;
$buffer_needed = false;
$back_button = '';
$refreshButton = '';
$save_filename = '';
$file_handle = '';
$err_url = '';
$filename = '';
$separate_files = '';
// Is it a quick or custom export?
if (isset($_POST['quick_or_custom'])
&& $_POST['quick_or_custom'] == 'quick'
) {
$quick_export = true;
} else {
$quick_export = false;
}
if ($_POST['output_format'] == 'astext') {
$asfile = false;
} else {
$asfile = true;
if (isset($_POST['as_separate_files'])
&& ! empty($_POST['as_separate_files'])
) {
if (isset($_POST['compression'])
&& ! empty($_POST['compression'])
&& $_POST['compression'] == 'zip'
) {
$separate_files = $_POST['as_separate_files'];
}
}
if (in_array($_POST['compression'], $compression_methods)) {
$compression = $_POST['compression'];
$buffer_needed = true;
}
if (($quick_export && ! empty($_POST['quick_export_onserver']))
|| (! $quick_export && ! empty($_POST['onserver']))
) {
if ($quick_export) {
$onserver = $_POST['quick_export_onserver'];
} else {
$onserver = $_POST['onserver'];
}
// Will we save dump on server?
$save_on_server = ! empty($cfg['SaveDir']) && $onserver;
}
}
/**
* If we are sending the export file (as opposed to just displaying it
* as text), we have to bypass the usual PhpMyAdmin\Response mechanism
*/
if (isset($_POST['output_format']) && $_POST['output_format'] == 'sendit' && ! $save_on_server) {
$response->disable();
//Disable all active buffers (see: ob_get_status(true) at this point)
while (@ob_end_clean());
}
// Generate error url and check for needed variables
if ($export_type == 'server') {
$err_url = 'server_export.php' . Url::getCommon();
} elseif ($export_type == 'database' && strlen($db) > 0) {
$err_url = 'db_export.php' . Url::getCommon(array('db' => $db));
// Check if we have something to export
if (isset($table_select)) {
$tables = $table_select;
} else {
$tables = array();
}
} elseif ($export_type == 'table' && strlen($db) > 0 && strlen($table) > 0) {
$err_url = 'tbl_export.php' . Url::getCommon(
array(
'db' => $db, 'table' => $table
)
);
} else {
Core::fatalError(__('Bad parameters!'));
}
// Merge SQL Query aliases with Export aliases from
// export page, Export page aliases are given more
// preference over SQL Query aliases.
$parser = new \PhpMyAdmin\SqlParser\Parser($sql_query);
$aliases = array();
if ((!empty($parser->statements[0]))
&& ($parser->statements[0] instanceof \PhpMyAdmin\SqlParser\Statements\SelectStatement)
) {
$aliases = \PhpMyAdmin\SqlParser\Utils\Misc::getAliases($parser->statements[0], $db);
}
if (!empty($_POST['aliases'])) {
$aliases = Export::mergeAliases($aliases, $_POST['aliases']);
$_SESSION['tmpval']['aliases'] = $_POST['aliases'];
}
/**
* Increase time limit for script execution and initializes some variables
*/
Util::setTimeLimit();
if (! empty($cfg['MemoryLimit'])) {
ini_set('memory_limit', $cfg['MemoryLimit']);
}
register_shutdown_function('PhpMyAdmin\Export::shutdown');
// Start with empty buffer
$dump_buffer = '';
$dump_buffer_len = 0;
// Array of dump_buffers - used in separate file exports
$dump_buffer_objects = array();
// We send fake headers to avoid browser timeout when buffering
$time_start = time();
// Defines the default <CR><LF> format.
// For SQL always use \n as MySQL wants this on all platforms.
if ($what == 'sql') {
$crlf = "\n";
} else {
$crlf = PHP_EOL;
}
$output_kanji_conversion = Encoding::canConvertKanji();
// Do we need to convert charset?
$output_charset_conversion = $asfile
&& Encoding::isSupported()
&& isset($charset) && $charset != 'utf-8';
// Use on the fly compression?
$GLOBALS['onfly_compression'] = $GLOBALS['cfg']['CompressOnFly']
&& $compression == 'gzip';
if ($GLOBALS['onfly_compression']) {
$GLOBALS['memory_limit'] = Export::getMemoryLimit();
}
// Generate filename and mime type if needed
if ($asfile) {
if (empty($remember_template)) {
$remember_template = '';
}
list($filename, $mime_type) = Export::getFilenameAndMimetype(
$export_type, $remember_template, $export_plugin, $compression,
$filename_template
);
} else {
$mime_type = '';
}
// Open file on server if needed
if ($save_on_server) {
list($save_filename, $message, $file_handle) = Export::openFile(
$filename, $quick_export
);
// problem opening export file on server?
if (! empty($message)) {
Export::showPage($db, $table, $export_type);
}
} else {
/**
* Send headers depending on whether the user chose to download a dump file
* or not
*/
if ($asfile) {
// Download
// (avoid rewriting data containing HTML with anchors and forms;
// this was reported to happen under Plesk)
ini_set('url_rewriter.tags', '');
$filename = Sanitize::sanitizeFilename($filename);
Core::downloadHeader($filename, $mime_type);
} else {
// HTML
if ($export_type == 'database') {
$num_tables = count($tables);
if ($num_tables == 0) {
$message = PhpMyAdmin\Message::error(
__('No tables found in database.')
);
$active_page = 'db_export.php';
include 'db_export.php';
exit();
}
}
list($html, $back_button, $refreshButton) = Export::getHtmlForDisplayedExportHeader(
$export_type, $db, $table
);
echo $html;
unset($html);
} // end download
}
$relation = new Relation();
// Fake loop just to allow skip of remain of this code by break, I'd really
// need exceptions here :-)
do {
// Re - initialize
$dump_buffer = '';
$dump_buffer_len = 0;
// Add possibly some comments to export
if (! $export_plugin->exportHeader()) {
break;
}
// Will we need relation & co. setup?
$do_relation = isset($GLOBALS[$what . '_relation']);
$do_comments = isset($GLOBALS[$what . '_include_comments'])
|| isset($GLOBALS[$what . '_comments']);
$do_mime = isset($GLOBALS[$what . '_mime']);
if ($do_relation || $do_comments || $do_mime) {
$cfgRelation = $relation->getRelationsParam();
}
// Include dates in export?
$do_dates = isset($GLOBALS[$what . '_dates']);
$whatStrucOrData = $GLOBALS[$what . '_structure_or_data'];
/**
* Builds the dump
*/
if ($export_type == 'server') {
if (! isset($db_select)) {
$db_select = '';
}
Export::exportServer(
$db_select, $whatStrucOrData, $export_plugin, $crlf, $err_url,
$export_type, $do_relation, $do_comments, $do_mime, $do_dates,
$aliases, $separate_files
);
} elseif ($export_type == 'database') {
if (!isset($table_structure) || !is_array($table_structure)) {
$table_structure = array();
}
if (!isset($table_data) || !is_array($table_data)) {
$table_data = array();
}
if (!empty($_POST['structure_or_data_forced'])) {
$table_structure = $tables;
$table_data = $tables;
}
if (isset($lock_tables)) {
Export::lockTables($db, $tables, "READ");
try {
Export::exportDatabase(
$db, $tables, $whatStrucOrData, $table_structure,
$table_data, $export_plugin, $crlf, $err_url, $export_type,
$do_relation, $do_comments, $do_mime, $do_dates, $aliases,
$separate_files
);
} finally {
Export::unlockTables();
}
} else {
Export::exportDatabase(
$db, $tables, $whatStrucOrData, $table_structure, $table_data,
$export_plugin, $crlf, $err_url, $export_type, $do_relation,
$do_comments, $do_mime, $do_dates, $aliases, $separate_files
);
}
} else {
// We export just one table
// $allrows comes from the form when "Dump all rows" has been selected
if (! isset($allrows)) {
$allrows = '';
}
if (! isset($limit_to)) {
$limit_to = 0;
}
if (! isset($limit_from)) {
$limit_from = 0;
}
if (isset($lock_tables)) {
try {
Export::lockTables($db, array($table), "READ");
Export::exportTable(
$db, $table, $whatStrucOrData, $export_plugin, $crlf,
$err_url, $export_type, $do_relation, $do_comments,
$do_mime, $do_dates, $allrows, $limit_to, $limit_from,
$sql_query, $aliases
);
} finally {
Export::unlockTables();
}
} else {
Export::exportTable(
$db, $table, $whatStrucOrData, $export_plugin, $crlf, $err_url,
$export_type, $do_relation, $do_comments, $do_mime, $do_dates,
$allrows, $limit_to, $limit_from, $sql_query, $aliases
);
}
}
if (! $export_plugin->exportFooter()) {
break;
}
} while (false);
// End of fake loop
if ($save_on_server && ! empty($message)) {
Export::showPage($db, $table, $export_type);
}
/**
* Send the dump as a file...
*/
if (empty($asfile)) {
echo Export::getHtmlForDisplayedExportFooter($back_button, $refreshButton);
return;
} // end if
// Convert the charset if required.
if ($output_charset_conversion) {
$dump_buffer = Encoding::convertString(
'utf-8',
$GLOBALS['charset'],
$dump_buffer
);
}
// Compression needed?
if ($compression) {
if (! empty($separate_files)) {
$dump_buffer = Export::compress(
$dump_buffer_objects, $compression, $filename
);
} else {
$dump_buffer = Export::compress($dump_buffer, $compression, $filename);
}
}
/* If we saved on server, we have to close file now */
if ($save_on_server) {
$message = Export::closeFile(
$file_handle, $dump_buffer, $save_filename
);
Export::showPage($db, $table, $export_type);
} else {
echo $dump_buffer;
}
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