argos/dmp-backend/src/main/java/eu/eudat/security/TokenAuthenticationFilter.java

66 lines
2.6 KiB
Java

package eu.eudat.security;
import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.web.filter.GenericFilterBean;
public class TokenAuthenticationFilter extends GenericFilterBean {
// public static final String HEADER_TOKEN_FIELD = "Authorization";
public static final String HEADER_NATIVE_TOKEN_FIELD = "native-token";
public static final String HEADER_GOOGLE_TOKEN_FIELD = "google-token";
public static final char HEADERNAME_USERNAME_DELIMITER = 0x1e; //specially crafted delimiter
@Override
public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain) throws IOException, ServletException {
final HttpServletRequest httpRequest = (HttpServletRequest) request;
String nativeToken = httpRequest.getHeader(HEADER_NATIVE_TOKEN_FIELD);
String googleToken = httpRequest.getHeader(HEADER_GOOGLE_TOKEN_FIELD);
//just pass the header, the username and the token into the credentials object of the UsernamePasswordAuthenticationToken class
UsernamePasswordAuthenticationToken authentication = null;
if(nativeToken != null)
authentication = new UsernamePasswordAuthenticationToken(HEADER_NATIVE_TOKEN_FIELD, nativeToken);
if(googleToken != null)
authentication = new UsernamePasswordAuthenticationToken(HEADER_GOOGLE_TOKEN_FIELD, googleToken);
SecurityContextHolder.getContext().setAuthentication(authentication);
final HttpServletResponse httpResponse = (HttpServletResponse) response;
httpResponse.setHeader("Access-Control-Allow-Origin", "*");
httpResponse.setHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS");
httpResponse.setHeader("Access-Control-Max-Age", "7200");
httpResponse.setHeader("Access-Control-Allow-Headers", "content-type, X-CSRF-Token, "+HEADER_NATIVE_TOKEN_FIELD+", "+HEADER_GOOGLE_TOKEN_FIELD);
// httpResponse.addHeader("Access-Control-Expose-Headers", "xsrf-token , " +HEADER_NATIVE_TOKEN_FIELD+", "+HEADER_GOOGLE_TOKEN_FIELD);
if ("OPTIONS".equals(httpRequest.getMethod())) {
httpResponse.setStatus(HttpServletResponse.SC_OK);
}
else {
chain.doFilter(httpRequest, httpResponse);
}
}
}