import java.io.PrintWriter;
import java.util.Map;
-import javax.servlet.ServletRequest;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.cacert.gigi.GigiApiException;
import org.cacert.gigi.localisation.Language;
-import org.cacert.gigi.pages.Page;
import org.cacert.gigi.util.RandomToken;
/**
} else {
out.println("<form method='POST' action='" + action + "'>");
}
- failed = false;
outputContent(out, l, vars);
out.print("<input type='hidden' name='" + CSRF_FIELD + "' value='");
out.print(getCSRFToken());
*/
protected abstract void outputContent(PrintWriter out, Language l, Map<String, Object> vars);
- private boolean failed;
-
- protected void outputError(PrintWriter out, ServletRequest req, String text, Object... contents) {
- if ( !failed) {
- failed = true;
- out.println("<div class='formError'>");
- }
- out.print("<div>");
- if (contents.length == 0) {
- out.print(Page.translate(req, text));
- } else {
- out.print(String.format(Page.translate(req, text), contents));
- }
- out.println("</div>");
- }
-
- protected void outputErrorPlain(PrintWriter out, String text) {
- if ( !failed) {
- failed = true;
- out.println("<div class='formError'>");
- }
- out.print("<div>");
- out.print(text);
- out.println("</div>");
- }
-
- public boolean isFailed(PrintWriter out) {
- if (failed) {
- out.println("</div>");
- }
- return failed;
- }
-
protected String getCSRFToken() {
return csrf;
}
* @throws CSRFException
* if no CSRF-token is found or the token is wrong.
*/
+ @SuppressWarnings("unchecked")
public static <T extends Form> T getForm(HttpServletRequest req, Class<T> target) throws CSRFException {
String csrf = req.getParameter(CSRF_FIELD);
if (csrf == null) {
if (hs == null) {
throw new CSRFException();
}
- Form f = (Form) hs.getAttribute("form/" + target.getName() + "/" + csrf);
+ Object f = hs.getAttribute("form/" + target.getName() + "/" + csrf);
if (f == null) {
throw new CSRFException();
}
+ if ( !(f instanceof Form)) {
+ throw new CSRFException();
+ }
+ if ( !target.isInstance(f)) {
+ throw new CSRFException();
+ }
+ // Dynamic Cast checked by previous if statement
return (T) f;
}