In web.xml I found CharacterEncodingFilter with UTF8 and force=true.
That's why character encoding of the request was UFT-8
(getRequest().getCharacterEncoding() = UFT8)
I've tested all decode combinations with this code:
Set<String> encs =
java.nio.charset.Charset.availableCharsets().keySet();
Iterator<String> itrFrom = encs.iterator();
while (itrFrom.hasNext()) {
String encFrom = itrFrom.next();
Iterator<String> itrTo = encs.iterator();
while (itrTo.hasNext()) {
String encTo = itrTo.next();
try {
String value = new
String(getRequest().getParameter("PARAM").getBytes(encFrom), encTo);
if (value.indexOf("Ļ") != -1 || value.indexOf("ļ") !=
-1) {
log.debug(encFrom+" -> "+encTo+" = "+value);
}
} catch (Exception e) {
log.debug(encFrom+" -> "+encTo+" = ???");
}
}
}
and found that parameter can not be decoded.
Because I have only one form in win1257 encoding (all others utf8) I've made
custom URI bases set enconding filter:
public class UriEncodingFilter extends CharacterEncodingFilter {
String forceUriEncodings[];
/**
* List of URI=ENCODING values seprated by ';'
* Filter will set request enconding to the ENCODING value if in request
uri will find URI substring.
*
* @param values
*/
public void setForceUriEncodings(String values) {
this.forceUriEncodings = values.split(";");
}
protected void doFilterInternal(HttpServletRequest request,
HttpServletResponse response, FilterChain filterChain) throws
ServletException, IOException {
for (int i=0;i<forceUriEncodings.length;i++)
{
int e = forceUriEncodings[i].lastIndexOf("=")-1;
if ( e != -1 &&
request.getRequestURI().indexOf(forceUriEncodings[i].substring(0, e)) != -1
) {
request.setCharacterEncoding(forceUriEncodings[i].substring(e+2));
filterChain.doFilter(request, response);
return;
}
}
super.doFilterInternal(request, response, filterChain);
}
}
and made settings in web.xml
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>...package.UriEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>forceUriEncodings</param-name>
<param-value>/aaa.html=Cp1257;/bbb.html=Cp1256;</param-value>
</init-param>
</filter>
now it's ok.
Thank you all for help!
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