Make parsing of PersonIdent from raw byte array fault-tolerant.
RawParseUtils.parsePersonIdent handles now those invalid byte sequences which would result in IndexOutOfBoundsException and returns null in this case.
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/*
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* Copyright (C) 2010, Marc Strapetz <marc.strapetz@syntevo.com>
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* and other copyright owners as documented in the project's IP log.
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*
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* This program and the accompanying materials are made available
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* under the terms of the Eclipse Distribution License v1.0 which
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* accompanies this distribution, is reproduced below, and is
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* available at http://www.eclipse.org/org/documents/edl-v10.php
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* - Neither the name of the Eclipse Foundation, Inc. nor the
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* names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.eclipse.jgit.util;
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import java.io.UnsupportedEncodingException;
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import java.util.Date;
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import java.util.TimeZone;
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import org.eclipse.jgit.lib.PersonIdent;
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import junit.framework.TestCase;
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public class RawParseUtils_ParsePersonIdentTest extends TestCase {
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public void testParsePersonIdent_legalCases()
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throws UnsupportedEncodingException {
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final Date when = new Date(1234567890000l);
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final TimeZone tz = TimeZone.getTimeZone("GMT-7");
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assertPersonIdent("Me <me@example.com> 1234567890 -0700", 0,
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new PersonIdent("Me", "me@example.com", when, tz));
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assertPersonIdent(" Me <me@example.com> 1234567890 -0700", 1,
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new PersonIdent("Me", "me@example.com", when, tz));
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assertPersonIdent("Me <> 1234567890 -0700", 0, new PersonIdent("Me",
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"", when, tz));
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assertPersonIdent(" <me@example.com> 1234567890 -0700", 0,
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new PersonIdent("", "me@example.com", when, tz));
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assertPersonIdent(" <> 1234567890 -0700", 0, new PersonIdent("", "",
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when, tz));
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}
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public void testParsePersonIdent_malformedCases()
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throws UnsupportedEncodingException {
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assertPersonIdent("Me me@example.com> 1234567890 -0700", 0, null);
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assertPersonIdent("Me <me@example.com 1234567890 -0700", 0, null);
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assertPersonIdent("<>", 0, null);
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assertPersonIdent("<me@example.com>", 0, null);
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assertPersonIdent(" <>", 0, null);
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assertPersonIdent(" <me@example.com>", 0, null);
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assertPersonIdent("Me <>", 0, null);
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assertPersonIdent("Me <me@example.com>", 0, null);
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assertPersonIdent("Me <me@example.com> 1234567890", 0, null);
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assertPersonIdent("<me@example.com> 1234567890 -0700", 0, null);
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assertPersonIdent("<> 1234567890 -0700", 0, null);
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}
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private void assertPersonIdent(String line, int nameB, PersonIdent expected)
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throws UnsupportedEncodingException {
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PersonIdent actual = RawParseUtils.parsePersonIdent(line
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.getBytes("UTF-8"), nameB);
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assertEquals(expected, actual);
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}
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}
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@ -673,14 +673,26 @@ public static PersonIdent parsePersonIdent(final byte[] raw, final int nameB) {
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final Charset cs = parseEncoding(raw);
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final int emailB = nextLF(raw, nameB, '<');
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final int emailE = nextLF(raw, emailB, '>');
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if (emailB <= nameB + 1 || // No name
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emailB >= raw.length || // No email start
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raw[emailB] == '\n' ||
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emailE >= raw.length - 1 || // No email end at all or no trailing date
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raw[emailE] == '\n') {
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return null;
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}
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final String name = decode(cs, raw, nameB, emailB - 2);
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final String email = decode(cs, raw, emailB, emailE - 1);
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final MutableInteger ptrout = new MutableInteger();
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final long when = parseLongBase10(raw, emailE + 1, ptrout);
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final int tz = parseTimeZoneOffset(raw, ptrout.value);
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final int whenE = ptrout.value;
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if (whenE >= raw.length || // No trailing timezone
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raw[whenE] == '\n') {
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return null;
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}
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final int tz = parseTimeZoneOffset(raw, whenE);
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return new PersonIdent(name, email, when * 1000L, tz);
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}
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