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/*
* slcl-android, an Android frontend for slcl
* Copyright (C) 2023-2024 Xavier Del Campo Romero
*
* 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 <https://www.gnu.org/licenses/>.
*/
package org.slcl.core;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.IOException;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;
import java.util.Date;
import java.util.List;
public final class Cookie {
final String username, cookie;
final CookieDate date;
private final class Results {
final String username, cookie;
final CookieDate date;
Results(String username, String cookie, final CookieDate date)
{
this.username = username;
this.cookie = cookie;
this.date = date;
}
}
public Cookie(final File f)
throws IOException {
final FileInputStream fis = new FileInputStream(f);
final InputStreamReader ir = new InputStreamReader(fis);
final BufferedReader r = new BufferedReader(ir);
final String data = r.readLine();
if (data == null) {
fis.close();
throw new IOException("empty file");
}
final Results res = from_data(null, data);
username = res.username;
cookie = res.cookie;
date = res.date;
fis.close();
}
private final class CookieDate {
final private String FMT = "EEE, dd MMM yyyy HH:mm:ss z";
final DateTime date;
public CookieDate(final String[] tokens) throws IOException
{
for (int i = 1; i < tokens.length; i++) {
final String[] date_tokens = tokens[i].split("=");
if (date_tokens.length != 2) {
continue;
}
final String header = date_tokens[0].trim();
if (!header.equalsIgnoreCase("Expires")) {
continue;
}
final DateTimeFormatter fmt = DateTimeFormat.forPattern(FMT);
try {
final DateTime dt = fmt.parseDateTime(date_tokens[1]);
date = dt;
return;
} catch (final IllegalArgumentException e) {
throw new IOException(e.getMessage());
} catch (final UnsupportedOperationException e) {
throw new IOException(e.getMessage());
}
}
throw new IOException("missing expiration date");
}
public String toString()
{
return date.toString(FMT);
}
public DateTime getDate() {
return date;
}
}
private Results from_data(final String exp_username, final String data)
throws IOException
{
final int sep = data.indexOf('=');
if (sep <= 0) {
throw new IOException("expected key=value format");
}
final String username = data.substring(0, sep);
if (exp_username != null
&& !username.equals(exp_username)) {
throw new IOException("wrong username");
}
final String[] tokens = data.substring(sep + 1).split(";");
if (tokens.length < 2) {
throw new IOException("expected at least two tokens");
}
return new Results(username, tokens[0], new CookieDate(tokens));
}
public Cookie(final String exp_username, final String data)
throws IOException
{
final Results r = from_data(exp_username, data);
username = r.username;
cookie = r.cookie;
date = r.date;
}
public void store(final File f) throws IOException
{
final FileOutputStream fos = new FileOutputStream(f);
final String datestr = "Expires=" + date.toString();
fos.write(cookie.getBytes());
fos.write(';');
fos.write(datestr.getBytes());
fos.write('\n');
fos.close();
}
public String getCookie() {
return cookie;
}
}
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