//The MIT License
//
//Copyright (c) 2009 nodchip
//
//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 tv.dyndns.kishibe.qmaclone.server;
import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.TimeZone;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import tv.dyndns.kishibe.qmaclone.client.packet.PacketProblem;
import tv.dyndns.kishibe.qmaclone.server.database.Database;
import tv.dyndns.kishibe.qmaclone.server.database.DatabaseException;
import com.google.common.base.Preconditions;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.common.io.ByteStreams;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.google.inject.Inject;
import com.google.inject.Singleton;
@SuppressWarnings("serial")
@Singleton
public class ServiceTopPage extends HttpServlet {
private static final Logger logger = Logger.getLogger(ServiceTopPage.class.getName());
private static final String PREFIX = "<html>\n<head>\n<title>QMAClone by nodchip (ノドチップ)</title>\n<meta http-equiv='content-type' content='text/html; charset=UTF-8'>\n<link rel='stylesheet' type='text/css' href='QMAClone.css'>\n<link rel='alternate' type='application/rss+xml'\n\ttitle='QMAClone RSSフィード' href='rss.xml' />\n<link rel='alternate' type='application/atom+xml'\n\ttitle='QMAClone Atomフィード' href='rss.xml?rssVersion=atom03' />\n<meta name='google-site-verification'\n\tcontent='mDQyFPpWAu6I_S35Y2Ud7ptxAZtpKGldvi8IN7f3ibY' />\n<script type='text/javascript'>\n\twindow.___gcfg = {\n\t\tlang : 'ja'\n\t};\n</script>\n<script type='text/javascript'>\n\tdocument.onkeydown = function(e) {\n\t\t// Backspaceキー\n\t\tif (e && e.keyCode == 8) {\n\t\t\telement = e.target || e.srcElement;\n\t\t\tif (element.tagName && element.tagName.toLowerCase() != 'input'\n\t\t\t\t\t&& element.tagName.toLowerCase() != 'textarea') {\n\t\t\t\t// Google Chrome & FireFox\n\t\t\t\te.preventDefault();\n\t\t\t\te.stopPropagation();\n\t\t\t\treturn false;\n\t\t\t}\n\t\t} else if (EVENT && EVENT.keyCode == 8 && EVENT.srcElement.type == null) {\n\t\t\t// IE\n\t\t\tevent.returnValue = false;\n\t\t\tevent.cancelBubble = true;\n\t\t\treturn false;\n\t\t}\n\t}\n</script>\n</head>\n\n<body>\n\t<iframe src='javascript:''' id='__gwt_historyFrame'\n\t\tstyle='width: 0; height: 0; border: 0'></iframe>\n\n\t<script type='text/javascript'\n\t\tsrc='tv.dyndns.kishibe.qmaclone.QMAClone/tv.dyndns.kishibe.qmaclone.QMAClone.nocache.js'></script>\n\n\t<h1 id='title' align='right'>QMAClone by nodchip(ノドチップ)</h1>\n\n\t<div id='slot' style='width: 100%; height: 100%;'></div>\n\t<div id='sound' style='width: 0px; height: 0px'></div>\n\t<div id='position_selecter'></div>\n\t<div id='click_canvas'></div>\n\n\t<div style='visibility: hidden'></div>\n\n\t<script type='text/javascript'>\n\t\tvar gaJsHost = (('https:' == document.location.protocol) ? 'https://ssl.'\n\t\t\t\t: 'http://www.');\n\t\tdocument\n\t\t\t\t.write(unescape('%3Cscript src=''\n\t\t\t\t\t\t+ gaJsHost\n\t\t\t\t\t\t+ 'google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E'));\n\t</script>\n\t<script type='text/javascript'>\n\t\ttry {\n\t\t\tvar pageTracker = _gat._getTracker('UA-12390713-3');\n\t\t\tpageTracker._trackPageview();\n\t\t} catch (err) {\n\t\t}\n\t</script>\n\n<div style='visibility: hidden'>\n";
private static final String SURFIX = "</div>\n\n</body>\n</html>\n";
private static final Object STATIC_KEY = new Object();
private final Database database;
private final LoadingCache<Object, byte[]> content = CacheBuilder.newBuilder()
.concurrencyLevel(1).expireAfterWrite(1, TimeUnit.DAYS)
.build(new CacheLoader<Object, byte[]>() {
@Override
public byte[] load(Object arg0) throws Exception {
return createHtml();
}
});
private long lastLastModified;
@Inject
public ServiceTopPage(Database database) {
this.database = Preconditions.checkNotNull(database);
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
resp.setContentType("text/html;charset=utf-8");
resp.setHeader("Cache-Control", "max-age=86400");
resp.setHeader("Expires", getRFC1123NextDay());
try (InputStream inputStream = req.getInputStream();
OutputStream outputStream = resp.getOutputStream()) {
try {
ByteStreams.skipFully(inputStream, Long.MAX_VALUE);
} catch (EOFException e) {
// Do nothing.
}
outputStream.write(content.get(STATIC_KEY));
} catch (ExecutionException e) {
logger.log(Level.SEVERE, "トップページHTMLの作成に失敗しました", e);
throw new IOException(e);
}
}
private byte[] createHtml() throws DatabaseException, UnsupportedEncodingException {
lastLastModified = System.currentTimeMillis();
StringBuilder b = new StringBuilder();
b.append(PREFIX);
StringBuilder sb = new StringBuilder("MMO");
List<PacketProblem> adsenseProblems = database.getAdsenseProblems(sb.toString());
for (PacketProblem problem : adsenseProblems) {
String sentence = problem.sentence;
String note = problem.note;
String[] choices = problem.choices;
String[] answers = problem.answers;
b.append("<div>\n");
b.append("\t<div>").append(SafeHtmlUtils.htmlEscape(sentence)).append("</div>\n");
b.append("\t<div>");
for (String choice : choices) {
if (choice != null && !choice.isEmpty()) {
b.append("<span>").append(SafeHtmlUtils.htmlEscape(choice)).append("</span>");
}
}
for (String answer : answers) {
if (answer != null && !answer.isEmpty()) {
b.append("<span>").append(SafeHtmlUtils.htmlEscape(answer)).append("</span>");
}
}
b.append("</div>\n");
if (note != null && !note.isEmpty()) {
b.append("\t<div>").append(SafeHtmlUtils.htmlEscape(note)).append("</div>\n");
}
b.append("</div>\n");
}
b.append(SURFIX);
return b.toString().getBytes("utf-8");
}
@Override
protected long getLastModified(HttpServletRequest req) {
return lastLastModified;
}
public String getRFC1123NextDay() {
SimpleDateFormat rfc1123DateFormat = new SimpleDateFormat("E, dd MMM yyyy HH:mm:ss zzz",
java.util.Locale.US);
rfc1123DateFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.DAY_OF_MONTH, 1);
Date current = calendar.getTime();
return rfc1123DateFormat.format(current);
}
}