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/*
* Copyright (C) 2008-2020, Juick
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.juick.www.filters;
import com.juick.model.User;
import com.juick.util.WebUtils;
import jakarta.servlet.FilterChain;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import com.juick.service.MessagesService;
import com.juick.service.UserService;
import org.apache.commons.lang3.math.NumberUtils;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;
import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
import org.springframework.web.util.UriComponents;
import javax.inject.Inject;
import java.io.IOException;
@Component
public class AnythingFilter extends OncePerRequestFilter {
@Inject
private MessagesService messagesService;
@Inject
private UserService userService;
@Override
public void doFilterInternal(HttpServletRequest servletRequest,
HttpServletResponse servletResponse,
FilterChain filterChain) throws IOException, ServletException {
String upgrade = servletRequest.getHeader("Connection");
if (upgrade != null && upgrade.equals("Upgrade")) {
filterChain.doFilter(servletRequest, servletResponse);
return;
}
UriComponents components = ServletUriComponentsBuilder.fromCurrentRequestUri().build();
String anything = components.getPath().substring(1);
int before = NumberUtils.toInt(components.getQueryParams().getFirst("before"), 0);
if (before == 0) {
boolean isPostNumber = WebUtils.isPostNumber(anything);
int messageId = isPostNumber ? NumberUtils.toInt(anything) : 0;
if (isPostNumber && anything.equals(Integer.toString(messageId))) {
if (messageId > 0) {
var message = messagesService.getMessage(messageId);
if (message.isPresent()) {
User author = message.get().getUser();
if (author != null) {
servletResponse.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);
servletResponse.setHeader("Location", "/" + author.getName() + "/" + anything);
return;
}
}
}
}
;
if (userService.getUsernames().stream().anyMatch(name -> name.equals(anything))) {
servletResponse.sendRedirect("/" + anything + "/");
} else {
filterChain.doFilter(servletRequest, servletResponse);
}
} else {
if (userService.getUsernames().stream().anyMatch(name -> name.equals(anything))) {
servletResponse.sendRedirect("/" + anything + "/?before=" + before);
} else {
filterChain.doFilter(servletRequest, servletResponse);
}
}
}
}
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