toad.city
That fuck shit the fascists are using
1/**
2 * Copyright (C) 2011 Whisper Systems
3 *
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17package org.tm.archive.service;
18
19
20
21
22import java.util.Optional;
23import java.util.regex.Matcher;
24import java.util.regex.Pattern;
25
26public class VerificationCodeParser {
27
28 private static final Pattern CHALLENGE_PATTERN = Pattern.compile("(.*\\D|^)([0-9]{3,4})-?([0-9]{3,4}).*", Pattern.DOTALL);
29
30 public static Optional<String> parse(String messageBody) {
31 if (messageBody == null) {
32 return Optional.empty();
33 }
34
35 Matcher challengeMatcher = CHALLENGE_PATTERN.matcher(messageBody);
36
37 if (!challengeMatcher.matches()) {
38 return Optional.empty();
39 }
40
41 return Optional.of(challengeMatcher.group(challengeMatcher.groupCount() - 1) +
42 challengeMatcher.group(challengeMatcher.groupCount()));
43 }
44}