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