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package itn.let.mjo.msgcampain.web;
import java.lang.reflect.Field;
public class MjonVOParamXssValues {
/**
* Build URI from VO and Host, Path
*
* @param paramObj VO
* @param host Host
* @param path Path
* @return URI
* @throws IllegalAccessException
* @throws IllegalArgumentException
*/
public int buildUri(Object paramObj) {
int XssCnt = buildParamMap(paramObj);
return XssCnt;
}
/**
* Build MultiValueMap - VO에 담긴 모든 변수의 값을 확인
*
* @param paramObj VO
* @return MultiValueMap
* @throws IllegalAccessException
* @throws IllegalArgumentException
*/
private int buildParamMap(Object paramObj) {
int XssCnt = 0;
for(Field field : paramObj.getClass().getDeclaredFields()) { // 각 변수를 하나씩 불러옴
field.setAccessible(true);
Object value;
try {
value = field.get(paramObj);
if(value != null) {
String paramValue = value.toString(); //변수 값을 받아옴
//String paramName = field.getName();
int cnt = cleanXSS(paramValue); //XSS 체크해보기
XssCnt = XssCnt + cnt;
}
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException("IllegalArgumentException Error ::: " + e);
} catch (IllegalAccessException e) {
throw new IllegalArgumentException("IllegalArgumentException Error ::: " + e);
}
}
return XssCnt;
}
/**
* Get values from fields of VO *
* @param field
* @param clazz
* @param obj
* @return
*/
/* private Object getValueFromField(Field field, Class<?> clazz, Object obj) {
for(Method method : clazz.getMethods()) {
String methodName = method.getName();
if( (methodName.startsWith("get") && methodName.length() == field.getName().length() + 3)
|| (methodName.startsWith("is") && methodName.length() == field.getName().length() + 2) ) {
if(methodName.toLowerCase().endsWith(field.getName().toLowerCase())) {
try {
return method.invoke(obj);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
return null;
}*/
/**
* XSS 문자열이 있는지 체크
* @param field
* @param clazz
* @param obj
* @return
*/
private int cleanXSS(String test_str) {
String test_str_low= test_str.toLowerCase();
int cnt = 0;
if(test_str_low.contains("union")||
test_str_low.contains("select") ||
test_str_low.contains("insert") ||
test_str_low.contains("drop") ||
test_str_low.contains("update") ||
test_str_low.contains("delete") ||
test_str_low.contains("join") ||
test_str_low.contains("from") ||
test_str_low.contains("where") ||
test_str_low.contains("substr") ||
test_str_low.contains("user_tables")||
test_str_low.contains("script")||
test_str_low.contains("<")||
test_str_low.contains(">")||
test_str_low.contains("alert")||
test_str_low.contains("javascript")||
test_str_low.contains("=")||
test_str_low.contains("!")||
test_str_low.contains("or")||
test_str_low.contains("user_tables")||
test_str_low.contains("\\(")||
test_str_low.contains("\\)")||
test_str_low.contains("user_tables")||
test_str_low.contains("<") ||
test_str_low.contains("\"") ||
test_str_low.contains("%") ||
test_str_low.contains("()") ||
test_str_low.contains("+") ||
test_str_low.contains("%") ||
test_str_low.contains(">")
)
{
/*try {
context.getRequestDispatcher("/blank.do").forward(request, response);
} catch (ServletException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}*/
/*test_str = test_str_low;
test_str = test_str.replaceAll("union", "q-union");
test_str = test_str.replaceAll("select", "q-select");
test_str = test_str.replaceAll("insert", "q-insert");
test_str = test_str.replaceAll("drop", "q-drop");
test_str = test_str.replaceAll("update", "q-update");
test_str = test_str.replaceAll("delete", "q-delete");
test_str = test_str.replaceAll("and", "q-and");
test_str = test_str.replaceAll("or", "q-or");
test_str = test_str.replaceAll("join", "q-join");
test_str = test_str.replaceAll("substr", "q-substr");
test_str = test_str.replaceAll("from", "q-from");
test_str = test_str.replaceAll("where", "q-where");
test_str = test_str.replaceAll("declare", "q-declare");
test_str = test_str.replaceAll("openrowset", "q-openrowset");
test_str = test_str.replaceAll("user_tables","q-user_tables");
test_str = test_str.replaceAll("user_tab_columns","q-user_tab_columns");
test_str = test_str.replaceAll("table_name","q-table_name");
test_str = test_str.replaceAll("column_name","q-column_name");
test_str = test_str.replaceAll("row_num","q-row_num");*/
//xss 문자열이 포함되어 있으면 카운트 함
cnt++;
}
return cnt ;
}
}