com.appslandia.plum.defaults.DefaultCaptchaController Maven / Gradle / Ivy

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// The MIT License (MIT)
// Copyright © 2015 AppsLandia. All rights reserved.

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

package com.appslandia.plum.defaults;

import java.awt.image.BufferedImage;
import java.io.OutputStream;

import javax.enterprise.context.ApplicationScoped;
import javax.imageio.ImageIO;
import javax.inject.Inject;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.appslandia.common.base.Params;
import com.appslandia.plum.base.ActionParser;
import com.appslandia.plum.base.ActionResult;
import com.appslandia.plum.base.Authorize;
import com.appslandia.plum.base.BadRequestException;
import com.appslandia.plum.base.CacheControl;
import com.appslandia.plum.base.Controller;
import com.appslandia.plum.base.EnableGzip;
import com.appslandia.plum.base.HttpGet;
import com.appslandia.plum.base.HttpGetPost;
import com.appslandia.plum.base.RequestAccessor;
import com.appslandia.plum.base.RequestContext;
import com.appslandia.plum.base.Resources;
import com.appslandia.plum.base.Result;
import com.appslandia.plum.base.SimpleCaptchaManager;
import com.appslandia.plum.captcha.CaptchaProducer;

/**
 *
 * @author Loc Ha
 *
 */
@ApplicationScoped
@Controller("captcha")
@Authorize(removed = true)
@EnableGzip(removed = true)
public class DefaultCaptchaController {

	@Inject
	protected SimpleCaptchaManager captchaManager;

	@Inject
	protected CaptchaProducer captchaProducer;

	@Inject
	protected ActionParser actionParser;

	@HttpGet
	@CacheControl(nocache = true)
	public ActionResult index(RequestAccessor request) throws Exception {
		String captchaWords = this.captchaManager.getCaptchaWords(request);
		if (captchaWords == null) {
			throw new BadRequestException(Resources.ERROR_BAD_REQUEST, request.getResources());
		}
		final BufferedImage img = this.captchaProducer.produce(captchaWords);

		return new ActionResult() {

			@Override
			public void execute(HttpServletRequest request, HttpServletResponse response, RequestContext requestContext) throws Exception {
				response.setContentType("image/png");

				try (OutputStream os = response.getOutputStream()) {
					ImageIO.write(img, "png", os);
				}
			}
		};
	}

	@HttpGetPost
	public Result next(RequestAccessor request, HttpServletResponse response) throws Exception {
		this.captchaManager.initCaptcha(request);

		String captchaId = (String) request.getAttribute(SimpleCaptchaManager.REQUEST_ATTRIBUTE_CAPTCHA_DATA);
		Params params = new Params(1).put(SimpleCaptchaManager.PARAM_CAPTCHA_ID, captchaId);

		String url = this.actionParser.toActionUrl(request, null, "captcha", "index", params, false);
		return new Result().setData(captchaId).setLink(response.encodeURL(url));
	}
}