org.primefaces.component.captcha.Captcha Maven / Gradle / Ivy
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PrimeFaces is one of the most popular UI libraries in Java EE Ecosystem and widely used by software companies, world renowned brands, banks, financial institutions, insurance companies, universities and more.
/*
* Generated, Do Not Modify
*/
/*
* Copyright 2009-2013 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 javax.faces.component.UIInput;
import javax.faces.context.FacesContext;
import javax.faces.component.UINamingContainer;
import javax.el.ValueExpression;
import javax.el.MethodExpression;
import javax.faces.render.Renderer;
import java.io.IOException;
import javax.faces.component.UIComponent;
import javax.faces.event.AbortProcessingException;
import javax.faces.application.ResourceDependencies;
import javax.faces.application.ResourceDependency;
import java.util.List;
import java.util.ArrayList;
import org.primefaces.util.ComponentUtils;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import org.primefaces.util.MessageFactory;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import javax.faces.application.FacesMessage;
import javax.faces.FacesException;
import org.primefaces.PrimeFaces;
import org.primefaces.context.RequestContext;
import org.primefaces.component.captcha.Captcha;
import org.primefaces.context.PrimeExternalContext;
import org.primefaces.json.JSONObject;
@ResourceDependencies({
@ResourceDependency(library="primefaces", name="jquery/jquery.js"),
@ResourceDependency(library="primefaces", name="core.js"),
@ResourceDependency(library="primefaces", name="components.js"),
@ResourceDependency(library="primefaces", name="captcha/captcha.js")
})
public class Captcha extends UIInput implements org.primefaces.component.api.Widget {
public static final String COMPONENT_TYPE = "org.primefaces.component.Captcha";
public static final String COMPONENT_FAMILY = "org.primefaces.component";
public static final String DEFAULT_RENDERER = "org.primefaces.component.CaptchaRenderer";
public enum PropertyKeys {
theme
,language
,tabindex
,label
,callback
,expired
,size;
String toString;
PropertyKeys(String toString) {
this.toString = toString;
}
PropertyKeys() {}
public String toString() {
return ((this.toString != null) ? this.toString : super.toString());
}
}
public Captcha() {
setRendererType(DEFAULT_RENDERER);
}
public String getFamily() {
return COMPONENT_FAMILY;
}
public java.lang.String getTheme() {
return (java.lang.String) getStateHelper().eval(PropertyKeys.theme, "light");
}
public void setTheme(java.lang.String _theme) {
getStateHelper().put(PropertyKeys.theme, _theme);
}
public java.lang.String getLanguage() {
return (java.lang.String) getStateHelper().eval(PropertyKeys.language, "en");
}
public void setLanguage(java.lang.String _language) {
getStateHelper().put(PropertyKeys.language, _language);
}
public int getTabindex() {
return (java.lang.Integer) getStateHelper().eval(PropertyKeys.tabindex, 0);
}
public void setTabindex(int _tabindex) {
getStateHelper().put(PropertyKeys.tabindex, _tabindex);
}
public java.lang.String getLabel() {
return (java.lang.String) getStateHelper().eval(PropertyKeys.label, null);
}
public void setLabel(java.lang.String _label) {
getStateHelper().put(PropertyKeys.label, _label);
}
public java.lang.String getCallback() {
return (java.lang.String) getStateHelper().eval(PropertyKeys.callback, null);
}
public void setCallback(java.lang.String _callback) {
getStateHelper().put(PropertyKeys.callback, _callback);
}
public java.lang.String getExpired() {
return (java.lang.String) getStateHelper().eval(PropertyKeys.expired, null);
}
public void setExpired(java.lang.String _expired) {
getStateHelper().put(PropertyKeys.expired, _expired);
}
public java.lang.String getSize() {
return (java.lang.String) getStateHelper().eval(PropertyKeys.size, null);
}
public void setSize(java.lang.String _size) {
getStateHelper().put(PropertyKeys.size, _size);
}
public final static String PUBLIC_KEY = "primefaces.PUBLIC_CAPTCHA_KEY";
public final static String PRIVATE_KEY = "primefaces.PRIVATE_CAPTCHA_KEY";
public final static String INVALID_MESSAGE_ID = "primefaces.captcha.INVALID";
@Override
protected void validateValue(FacesContext context, Object value) {
super.validateValue(context, value);
if(isValid()) {
boolean result = false;
try {
URL url = new URL("https://www.google.com/recaptcha/api/siteverify");
URLConnection conn = url.openConnection();
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setUseCaches(false);
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
String postBody = createPostParameters(context, value);
OutputStream out = conn.getOutputStream();
out.write(postBody.getBytes());
out.flush();
out.close();
BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = rd.readLine()) != null) {
response.append(inputLine);
}
JSONObject json = new JSONObject(response.toString());
result = json.getBoolean("success");
rd.close();
}catch(Exception exception) {
throw new FacesException(exception);
} finally {
// the captcha token is valid for only one request, in case of an ajax request we have to get a new one
if(context.getPartialViewContext().isAjaxRequest()) {
PrimeFaces.current().executeScript("grecaptcha.reset()");
}
}
if(!result) {
setValid(false);
String validatorMessage = getValidatorMessage();
FacesMessage msg = null;
if(validatorMessage != null) {
msg = new FacesMessage(FacesMessage.SEVERITY_ERROR, validatorMessage, validatorMessage);
}
else {
Object[] params = new Object[2];
params[0] = MessageFactory.getLabel(context, this);
params[1] = (String)value;
msg = MessageFactory.getMessage(Captcha.INVALID_MESSAGE_ID, FacesMessage.SEVERITY_ERROR, params);
}
context.addMessage(getClientId(context), msg);
}
}
}
private String createPostParameters(FacesContext context, Object value) throws UnsupportedEncodingException {
String privateKey = context.getApplication().evaluateExpressionGet(context, context.getExternalContext().getInitParameter(Captcha.PRIVATE_KEY), String.class);
if(privateKey == null) {
throw new FacesException("Cannot find private key for catpcha, use primefaces.PRIVATE_CAPTCHA_KEY context-param to define one");
}
StringBuilder postParams = new StringBuilder();
postParams.append("secret=").append(URLEncoder.encode(privateKey, "UTF-8"));
postParams.append("&response=").append(value == null ? "" : URLEncoder.encode((String) value, "UTF-8"));
String params = postParams.toString();
postParams.setLength(0);
return params;
}
public String resolveWidgetVar() {
return ComponentUtils.resolveWidgetVar(getFacesContext(), this);
}
}