215 lines
8.6 KiB
PHP
215 lines
8.6 KiB
PHP
<?php
|
|
/* $Id$ */
|
|
// vim: expandtab sw=4 ts=4 sts=4:
|
|
|
|
// note: grab_globals has extracted the fields from _FILES
|
|
// or HTTP_POST_FILES
|
|
|
|
// Check parameters
|
|
|
|
require_once('./libraries/common.lib.php');
|
|
|
|
PMA_checkParameters(array('db','encoded_key'));
|
|
|
|
|
|
// f i e l d u p l o a d e d f r o m a f i l e
|
|
|
|
// 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.
|
|
|
|
$check_stop = false;
|
|
|
|
// Check if a multi-edit row was found
|
|
${'me_fields_upload_' . $encoded_key} = (isset($enc_primary_key) && isset(${'fields_upload_' . $encoded_key}['multi_edit']) ? ${'fields_upload_' . $encoded_key}['multi_edit'][$enc_primary_key] : (isset(${'fields_upload_' . $encoded_key}) ? ${'fields_upload_' . $encoded_key} : null));
|
|
${'me_fields_uploadlocal_' . $encoded_key} = (isset($enc_primary_key) && isset(${'fields_uploadlocal_' . $encoded_key}['multi_edit']) ? ${'fields_uploadlocal_' . $encoded_key}['multi_edit'][$enc_primary_key] : (isset(${'fields_uploadlocal_' . $encoded_key}) ? ${'fields_uploadlocal_' . $encoded_key} : null));
|
|
|
|
if (isset(${'me_fields_upload_' . $encoded_key}) && ${'me_fields_upload_' . $encoded_key} != 'none'){
|
|
// garvin: This fields content is a blob-file upload.
|
|
|
|
if (!empty(${'me_fields_upload_' . $encoded_key})) {
|
|
// garvin: The blob-field is not empty. Check what we have there.
|
|
|
|
$data_file = ${'me_fields_upload_' . $encoded_key};
|
|
|
|
if (is_uploaded_file($data_file)) {
|
|
// garvin: A valid uploaded file is found. Look into the file...
|
|
|
|
$val = fread(fopen($data_file, 'rb'), filesize($data_file));
|
|
// nijel: This is probably the best way how to put binary data
|
|
// into MySQL and it also allow not to care about charset
|
|
// conversion that would otherwise corrupt the data.
|
|
|
|
if (!empty($val)) {
|
|
// garvin: The upload was valid. Check in new blob-field's contents.
|
|
$val = '0x' . bin2hex($val);
|
|
$seen_binary = TRUE;
|
|
$check_stop = TRUE;
|
|
}
|
|
// garvin: ELSE: an empty file was uploaded. Remove blob-field's contents.
|
|
// Blob-fields are preserved, see below. ($protected$)
|
|
|
|
} else {
|
|
// garvin: Danger, will robinson. File is malicious. Blob-fields are preserved, see below. ($protected$)
|
|
// void
|
|
}
|
|
|
|
} elseif (!empty(${'me_fields_uploadlocal_' . $encoded_key})) {
|
|
if (substr($cfg['UploadDir'], -1) != '/') {
|
|
$cfg['UploadDir'] .= '/';
|
|
}
|
|
$file_to_upload = $cfg['UploadDir'] . preg_replace('@\.\.*@', '.', ${'me_fields_uploadlocal_' . $encoded_key});
|
|
|
|
// A local file will be uploaded.
|
|
$open_basedir = @ini_get('open_basedir');
|
|
|
|
// If we are on a server with open_basedir, we must move the file
|
|
// before opening it. The doc explains how to create the "./tmp"
|
|
// directory
|
|
|
|
$unlink = false;
|
|
if (!empty($open_basedir)) {
|
|
|
|
$tmp_subdir = (PMA_IS_WINDOWS ? '.\\tmp\\' : './tmp/');
|
|
|
|
// function is_writeable() is valid on PHP3 and 4
|
|
if (!is_writeable($tmp_subdir)) {
|
|
// if we cannot move the file don't change blob fields
|
|
$file_to_upload = '';
|
|
} else {
|
|
$new_file_to_upload = $tmp_subdir . basename($file_to_upload);
|
|
move_uploaded_file($file_to_upload, $new_file_to_upload);
|
|
|
|
$file_to_upload = $new_file_to_upload;
|
|
$unlink = true;
|
|
}
|
|
}
|
|
|
|
if ($file_to_upload != '') {
|
|
|
|
$val = fread(fopen($file_to_upload, 'rb'), filesize($file_to_upload));
|
|
if (!empty($val)) {
|
|
$val = '0x' . bin2hex($val);
|
|
$seen_binary = TRUE;
|
|
$check_stop = TRUE;
|
|
}
|
|
|
|
if ($unlink == TRUE) {
|
|
unlink($file_to_upload);
|
|
}
|
|
}
|
|
|
|
}
|
|
// garvin: else: Post-field contains no data. Blob-fields are preserved, see below. ($protected$)
|
|
|
|
}
|
|
|
|
if (!$check_stop) {
|
|
|
|
// f i e l d v a l u e i n t h e f o r m
|
|
|
|
if (isset($me_fields_type[$encoded_key])) $type = $me_fields_type[$encoded_key];
|
|
else $type = '';
|
|
|
|
$f = 'field_' . md5($key);
|
|
$t_fval = (isset($$f) ? $$f : null);
|
|
|
|
if (isset($t_fval['multi_edit']) && isset($t_fval['multi_edit'][$enc_primary_key])) {
|
|
$fval = &$t_fval['multi_edit'][$enc_primary_key];
|
|
} else {
|
|
$fval = null;
|
|
}
|
|
|
|
switch (strtolower($val)) {
|
|
// let users type NULL or null to input this string and not a NULL value
|
|
//case 'null':
|
|
// break;
|
|
case '':
|
|
switch ($type) {
|
|
case 'enum':
|
|
// if we have an enum, then construct the value
|
|
if (!empty($fval)) {
|
|
$val = implode(',', $fval);
|
|
if ($val == 'null') {
|
|
// void
|
|
} else {
|
|
// the data here is urlencoded
|
|
$val = "'" . PMA_sqlAddslashes(urldecode($val)) . "'";
|
|
}
|
|
} else {
|
|
$val = "''";
|
|
}
|
|
break;
|
|
case 'set':
|
|
// if we have a set, then construct the value
|
|
if (!empty($fval)) {
|
|
$val = implode(',', $fval);
|
|
// the data here is urlencoded
|
|
$val = "'" . PMA_sqlAddslashes(urldecode($val)) . "'";
|
|
} else {
|
|
$val = "''";
|
|
}
|
|
break;
|
|
case 'foreign':
|
|
// if we have a foreign key, then construct the value
|
|
if (!empty($fval)) {
|
|
$val = implode(',', $fval);
|
|
if ($val == 'null') {
|
|
// void
|
|
} else {
|
|
// the data here is not urlencoded!
|
|
//$val = "'" . PMA_sqlAddslashes(urldecode($val)) . "'";
|
|
$val = "'" . PMA_sqlAddslashes($val) . "'";
|
|
}
|
|
} else {
|
|
$val = "''";
|
|
}
|
|
break;
|
|
case 'protected':
|
|
// here we are in protected mode (asked in the config)
|
|
// so tbl_change has put this special value in the
|
|
// fields array, so we do not change the field value
|
|
// but we can still handle field upload
|
|
|
|
// garvin: when in UPDATE mode, do not alter field's contents. When in INSERT
|
|
// mode, insert empty field because no values were submitted. If protected
|
|
// blobs where set, insert original fields content.
|
|
if (isset($fieldlist)) {
|
|
if (isset($prot_row) && isset($prot_row[$key]) && !empty($prot_row[$key])) {
|
|
$val = '0x' . bin2hex($prot_row[$key]);
|
|
$seen_binary = TRUE;
|
|
} else {
|
|
$val = "''";
|
|
}
|
|
} else {
|
|
unset($val);
|
|
}
|
|
|
|
break;
|
|
default:
|
|
$val = "'" . PMA_sqlAddslashes($val) . "'";
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
$val = "'" . PMA_sqlAddslashes($val) . "'";
|
|
break;
|
|
} // end switch
|
|
|
|
// 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($me_fields_null) && isset($me_fields_null[$encoded_key])
|
|
&& $val=="''") {
|
|
$val = 'NULL';
|
|
}
|
|
} // end else (field value in the form)
|
|
?>
|