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/*
* Copyright 2000-2022 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.v7.data.util.sqlcontainer;
import java.io.Serializable;
/**
* @deprecated As of 8.0, no replacement available.
*/
@Deprecated
public class SQLUtil implements Serializable {
/**
* Escapes different special characters in strings that are passed to SQL.
* Replaces the following:
*
* <list>
* <li>' is replaced with ''</li>
* <li>\x00 is removed</li>
* <li>\ is replaced with \\</li>
* <li>" is replaced with \"</li>
* <li>\x1a is removed</li> </list>
*
* Also note! The escaping done here may or may not be enough to prevent any
* and all SQL injections so it is recommended to check user input before
* giving it to the SQLContainer/TableQuery.
*
* @param constant
* @return \\\'\'
*/
public static String escapeSQL(String constant) {
if (constant == null) {
return null;
}
String fixedConstant = constant;
fixedConstant = fixedConstant.replaceAll("\\\\x00", "");
fixedConstant = fixedConstant.replaceAll("\\\\x1a", "");
fixedConstant = fixedConstant.replaceAll("'", "''");
fixedConstant = fixedConstant.replaceAll("\\\\", "\\\\\\\\");
fixedConstant = fixedConstant.replaceAll("\\\"", "\\\\\"");
return fixedConstant;
}
}
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