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org.primefaces.component.captcha.CaptchaRenderer Maven / Gradle / Ivy
/*
* Copyright 2009-2015 PrimeTek.
*
* 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 org.primefaces.component.captcha;
import java.io.IOException;
import java.util.Map;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.renderkit.CoreRenderer;
import org.primefaces.util.WidgetBuilder;
public class CaptchaRenderer extends CoreRenderer {
private final static String RESPONSE_FIELD = "g-recaptcha-response";
@Override
public void decode(FacesContext context, UIComponent component) {
Captcha captcha = (Captcha) component;
Map params = context.getExternalContext().getRequestParameterMap();
String answer = params.get(RESPONSE_FIELD);
if(answer != null)
captcha.setSubmittedValue(answer);
else
captcha.setSubmittedValue("");
}
@Override
public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
ResponseWriter writer = context.getResponseWriter();
Captcha captcha = (Captcha) component;
String publicKey = getPublicKey(context, captcha);
if (publicKey == null) {
throw new FacesException("Cannot find public key for catpcha, use primefaces.PUBLIC_CAPTCHA_KEY context-param to define one");
}
encodeMarkup(context, captcha, publicKey);
encodeScript(context, captcha, publicKey);
}
protected void encodeMarkup(FacesContext context, Captcha captcha, String publicKey) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String clientId = captcha.getClientId(context);
captcha.setRequired(true);
writer.startElement("div", null);
writer.writeAttribute("id", clientId, "id");
writer.endElement("div");
}
protected void encodeScript(FacesContext context, Captcha captcha, String publicKey) throws IOException {
String clientId = captcha.getClientId(context);
WidgetBuilder wb = getWidgetBuilder(context);
wb.initWithDomReady("Captcha", captcha.resolveWidgetVar(), clientId);
wb.attr("sitekey", publicKey)
.attr("theme", captcha.getTheme(), "light")
.attr("language", captcha.getLanguage(), "en")
.attr("tabindex", captcha.getTabindex(), 0)
.attr("callback", captcha.getCallback(), null)
.attr("expired", captcha.getExpired(), null);
wb.finish();
}
protected String getPublicKey(FacesContext context, Captcha captcha) {
return context.getApplication().evaluateExpressionGet(context, context.getExternalContext().getInitParameter(Captcha.PUBLIC_KEY), String.class);
}
}