2 /* vim: set expandtab sw=4 ts=4 sts=4: */
4 * handle field values (possibly uploaded from a file)
6 * original if-clause checked, whether input was stored in a possible
7 * fields_upload_XX var. Now check, if the field is set. If it is empty or a
8 * malicious file, do not alter fields contents. If an empty or invalid file is
9 * specified, the binary data gets deleter. Maybe a nice new text-variable is
10 * appropriate to document this behaviour.
12 * security cautions! You could trick the form and submit any file the
13 * webserver has access to for upload to a binary field. Shouldn't be that easy! ;)
15 * default is to advance to the field-value parsing. Will only be set to
16 * true when a binary file is uploaded, thus bypassing further manipulation of $val.
18 * note: grab_globals has extracted the fields from _FILES or HTTP_POST_FILES
28 * @uses PMA_NO_VARIABLES_IMPORT
29 * @uses PMA_sqlAddslashes()
32 if (! defined('PHPMYADMIN')) {
37 * do not import request variable into global scope
39 if (! defined('PMA_NO_VARIABLES_IMPORT')) {
40 define('PMA_NO_VARIABLES_IMPORT', true);
43 * Gets some core libraries
45 require_once './libraries/common.inc.php';
46 require_once './libraries/File.class.php';
48 $file_to_insert = new PMA_File();
49 $file_to_insert->checkTblChangeForm($key, $rownumber);
51 $possibly_uploaded_val = $file_to_insert->getContent();
53 if ($file_to_insert->isError()) {
54 $message .= $file_to_insert->getError();
56 $file_to_insert->cleanUp();
58 if (false !== $possibly_uploaded_val) {
59 $val = $possibly_uploaded_val;
62 // f i e l d v a l u e i n t h e f o r m
64 if (isset($me_fields_type[$key])) {
65 $type = $me_fields_type[$key];
70 // $key contains the md5() of the fieldname
71 if (0 === strlen($val)) {
77 // if we have an enum, then construct the value
79 // if we have a set, then construct the value
81 // if we have a foreign key, then construct the value
82 if (! empty($_REQUEST['fields']['multi_edit'][$rownumber][$key])) {
83 $val = implode(',', $_REQUEST['fields']['multi_edit'][$rownumber][$key]);
84 $val = "'" . PMA_sqlAddslashes($val) . "'";
88 // here we are in protected mode (asked in the config)
89 // so tbl_change has put this special value in the
90 // fields array, so we do not change the field value
91 // but we can still handle field upload
93 // when in UPDATE mode, do not alter field's contents. When in INSERT
94 // mode, insert empty field because no values were submitted. If protected
95 // blobs where set, insert original fields content.
96 if (! empty($prot_row[$me_fields_name[$key]])) {
97 $val = '0x' . bin2hex($prot_row[$me_fields_name[$key]]);
104 // best way to avoid problems in strict mode (works also in non-strict mode)
105 if (isset($me_auto_increment) && isset($me_auto_increment[$key])) {
110 } elseif ($type == 'bit') {
111 $val = preg_replace('/[^01]/', '0', $val);
112 $val = "b'" . PMA_sqlAddslashes($val) . "'";
113 } elseif (! (($type == 'datetime' ||
$type == 'timestamp') && $val == 'CURRENT_TIMESTAMP')) {
114 $val = "'" . PMA_sqlAddslashes($val) . "'";
117 // Was the Null checkbox checked for this field?
118 // (if there is a value, we ignore the Null checkbox: this could
119 // be possible if Javascript is disabled in the browser)
120 if (isset($me_fields_null[$key])
121 && ($val == "''" ||
$val == '')) {
125 // The Null checkbox was unchecked for this field
126 if (empty($val) && isset($me_fields_null_prev[$key]) && ! isset($me_fields_null[$key])) {
129 } // end else (field value in the form)