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- <?php
- /* vim: set expandtab sw=4 ts=4 sts=4: */
- /**
- * handle field values (possibly uploaded from a file)
- *
- * garvin: original if-clause checked, whether input was stored in a possible
- * fields_upload_XX var. Now check, if the field is set. If it is empty or a
- * malicious file, do not alter fields contents. If an empty or invalid file is
- * specified, the binary data gets deleter. Maybe a nice new text-variable is
- * appropriate to document this behaviour.
- *
- * garvin: security cautions! You could trick the form and submit any file the
- * webserver has access to for upload to a binary field. Shouldn't be that easy! ;)
- *
- * garvin: default is to advance to the field-value parsing. Will only be set to
- * true when a binary file is uploaded, thus bypassing further manipulation of $val.
- *
- * note: grab_globals has extracted the fields from _FILES or HTTP_POST_FILES
- *
- * @version $Id: tbl_replace_fields.inc.php 11326 2008-06-17 21:32:48Z lem9 $
- *
- * @uses $_REQUEST
- * @uses defined()
- * @uses define()
- * @uses bin2hex()
- * @uses strlen()
- * @uses md5()
- * @uses implode()
- * @uses PMA_NO_VARIABLES_IMPORT
- * @uses PMA_sqlAddslashes()
- */
- if (! defined('PHPMYADMIN')) {
- exit;
- }
-
- /**
- * do not import request variable into global scope
- */
- if (! defined('PMA_NO_VARIABLES_IMPORT')) {
- define('PMA_NO_VARIABLES_IMPORT', true);
- }
- /**
- * Gets some core libraries
- */
- require_once './libraries/common.inc.php';
- require_once './libraries/File.class.php';
-
- $file_to_insert = new PMA_File();
- $file_to_insert->checkTblChangeForm($key, $rowcount);
-
- $possibly_uploaded_val = $file_to_insert->getContent();
-
- if ($file_to_insert->isError()) {
- $message .= $file_to_insert->getError();
- }
- $file_to_insert->cleanUp();
-
- if (false !== $possibly_uploaded_val) {
- $val = $possibly_uploaded_val;
- } else {
-
- // f i e l d v a l u e i n t h e f o r m
-
- if (isset($me_fields_type[$key])) {
- $type = $me_fields_type[$key];
- } else {
- $type = '';
- }
-
- $f = 'field_' . md5($key);
-
- if (0 === strlen($val)) {
- // default
- $val = "''";
-
- switch ($type) {
- case 'enum':
- // if we have an enum, then construct the value
- case 'set':
- // if we have a set, then construct the value
- case 'foreign':
- // if we have a foreign key, then construct the value
- if (! empty($_REQUEST[$f]['multi_edit'][$rowcount])) {
- $val = implode(',', $_REQUEST[$f]['multi_edit'][$rowcount]);
- $val = "'" . PMA_sqlAddslashes($val) . "'";
- }
- break;
- case 'protected':
- // here we are in protected mode (asked in the config)
- // so tbl_change has put this special value in the
- // fields array, so we do not change the field value
- // but we can still handle field upload
-
- // garvin: when in UPDATE mode, do not alter field's contents. When in INSERT
- // mode, insert empty field because no values were submitted. If protected
- // blobs where set, insert original fields content.
- if (! empty($prot_row[$key])) {
- $val = '0x' . bin2hex($prot_row[$key]);
- } else {
- $val = '';
- }
-
- break;
- default:
- // best way to avoid problems in strict mode (works also in non-strict mode)
- if (isset($me_auto_increment) && isset($me_auto_increment[$key])) {
- $val = 'NULL';
- }
- break;
- }
- } elseif ($type == 'bit') {
- $val = preg_replace('/[^01]/', '0', $val);
- $val = "b'" . PMA_sqlAddslashes($val) . "'";
- } elseif (! ($type == 'timestamp' && $val == 'CURRENT_TIMESTAMP')) {
- $val = "'" . PMA_sqlAddslashes($val) . "'";
- }
-
- // Was the Null checkbox checked for this field?
- // (if there is a value, we ignore the Null checkbox: this could
- // be possible if Javascript is disabled in the browser)
- if (isset($me_fields_null[$key])
- && $val == "''") {
- $val = 'NULL';
- }
-
- // The Null checkbox was unchecked for this field
- if (empty($val) && isset($me_fields_null_prev[$key]) && ! isset($me_fields_null[$key])) {
- $val = "''";
- }
- } // end else (field value in the form)
- unset($type, $f);
- ?>
-