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Back out 9fe5610363b3 (bug 959652) for bustage

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This commit is contained in:
Phil Ringnalda 2014-03-11 21:53:43 -07:00
parent bc511944aa
commit e2781e6a10
3 changed files with 14 additions and 166 deletions
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33
mobile/android/base/background/healthreport/EnvironmentV1.java
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@ -5,6 +5,7 @@
package org.mozilla.gecko.background.healthreport;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Iterator;
import java.util.SortedSet;
@ -13,7 +14,6 @@ import org.json.JSONException;
import org.json.JSONObject;
import org.mozilla.apache.commons.codec.binary.Base64;
import org.mozilla.gecko.background.common.log.Logger;
import org.mozilla.gecko.background.nativecode.NativeCrypto;
public abstract class EnvironmentV1 {
private static final String LOG_TAG = "GeckoEnvironment";
@ -70,15 +70,24 @@ public abstract class EnvironmentV1 {
}
public static class HashAppender extends EnvironmentAppender {
private final StringBuilder builder;
final MessageDigest hasher;
public HashAppender() throws NoSuchAlgorithmException {
builder = new StringBuilder();
// Note to the security-minded reader: we deliberately use SHA-1 here, not
// a stronger hash. These identifiers don't strictly need a cryptographic
// hash function, because there is negligible value in attacking the hash.
// We use SHA-1 because it's *shorter* -- the exact same reason that Git
// chose SHA-1.
hasher = MessageDigest.getInstance("SHA-1");
}
@Override
public void append(String s) {
builder.append((s == null) ? "null" : s);
try {
hasher.update(((s == null) ? "null" : s).getBytes("UTF-8"));
} catch (UnsupportedEncodingException e) {
// This can never occur. Thanks, Java.
}
}
@Override
@ -90,21 +99,7 @@ public abstract class EnvironmentV1 {
public String toString() {
// We *could* use ASCII85… but the savings would be negated by the
// inclusion of JSON-unsafe characters like double-quote.
final byte[] inputBytes;
try {
inputBytes = builder.toString().getBytes("UTF-8");
} catch (UnsupportedEncodingException e) {
Logger.warn(LOG_TAG, "Invalid charset String passed to getBytes", e);
return null;
}
// Note to the security-minded reader: we deliberately use SHA-1 here, not
// a stronger hash. These identifiers don't strictly need a cryptographic
// hash function, because there is negligible value in attacking the hash.
// We use SHA-1 because it's *shorter* -- the exact same reason that Git
// chose SHA-1.
final byte[] hash = NativeCrypto.sha1(inputBytes);
return new Base64(-1, null, false).encodeAsString(hash);
return new Base64(-1, null, false).encodeAsString(hasher.digest());
}
}

1
mobile/android/tests/background/junit3/android-services-files.mk
View File

@ -30,7 +30,6 @@ BACKGROUND_TESTS_JAVA_FILES := \
src/healthreport/prune/TestHealthReportPruneService.java \
src/healthreport/prune/TestPrunePolicyDatabaseStorage.java \
src/healthreport/TestEnvironmentBuilder.java \
src/healthreport/TestEnvironmentV1HashAppender.java \
src/healthreport/TestHealthReportBroadcastService.java \
src/healthreport/TestHealthReportDatabaseStorage.java \
src/healthreport/TestHealthReportGenerator.java \

146
mobile/android/tests/background/junit3/src/healthreport/TestEnvironmentV1HashAppender.java
View File

@ -1,146 +0,0 @@
/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
package org.mozilla.gecko.background.healthreport;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
import java.util.LinkedList;
import org.mozilla.apache.commons.codec.binary.Base64;
import org.mozilla.gecko.background.healthreport.EnvironmentV1.EnvironmentAppender;
import org.mozilla.gecko.background.healthreport.EnvironmentV1.HashAppender;
import org.mozilla.gecko.background.helpers.FakeProfileTestCase;
import org.mozilla.gecko.sync.Utils;
/**
* Tests the HashAppender functionality. Note that these tests must be run on an Android
* device because the SHA-1 native library needs to be loaded.
*/
public class TestEnvironmentV1HashAppender extends FakeProfileTestCase {
// input and expected values via: http://oauth.googlecode.com/svn/code/c/liboauth/src/sha1.c
private final static String[] INPUTS = new String[] {
"abc",
"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
"" // To be filled in below.
};
static {
final String baseStr = "01234567";
final int repetitions = 80;
final StringBuilder builder = new StringBuilder(baseStr.length() * repetitions);
for (int i = 0; i < 80; ++i) {
builder.append(baseStr);
}
INPUTS[2] = builder.toString();
}
private final static String[] EXPECTEDS = new String[] {
"a9993e364706816aba3e25717850c26c9cd0d89d",
"84983e441c3bd26ebaae4aa1f95129e5e54670f1",
"dea356a2cddd90c7a7ecedc5ebb563934f460452"
};
static {
for (int i = 0; i < EXPECTEDS.length; ++i) {
EXPECTEDS[i] = new Base64(-1, null, false).encodeAsString(Utils.hex2Byte(EXPECTEDS[i]));
}
}
public void testSHA1Hashing() throws Exception {
for (int i = 0; i < INPUTS.length; ++i) {
final String input = INPUTS[i];
final String expected = EXPECTEDS[i];
final HashAppender appender = new HashAppender();
addStringToAppenderInParts(appender, input);
final String result = appender.toString();
assertEquals(expected, result);
}
}
/**
* Tests to ensure output is the same as the former MessageDigest implementation (bug 959652).
*/
public void testAgainstMessageDigestImpl() throws Exception {
// List.add doesn't allow add(null) so we make a LinkedList here.
final LinkedList<String> inputs = new LinkedList<String>(Arrays.asList(INPUTS));
inputs.add(null);
for (final String input : inputs) {
final HashAppender hAppender = new HashAppender();
final MessageDigestHashAppender mdAppender = new MessageDigestHashAppender();
hAppender.append(input);
mdAppender.append(input);
final String hResult = hAppender.toString();
final String mdResult = mdAppender.toString();
assertEquals(mdResult, hResult);
}
}
public void testIntegersAgainstMessageDigestImpl() throws Exception {
final int[] INPUTS = {Integer.MIN_VALUE, -1337, -42, 0, 42, 1337, Integer.MAX_VALUE};
for (final int input : INPUTS) {
final HashAppender hAppender = new HashAppender();
final MessageDigestHashAppender mdAppender = new MessageDigestHashAppender();
hAppender.append(input);
mdAppender.append(input);
final String hResult = hAppender.toString();
final String mdResult = mdAppender.toString();
assertEquals(mdResult, hResult);
}
}
private void addStringToAppenderInParts(final EnvironmentAppender appender, final String input) {
int substrInd = 0;
int substrLength = 1;
while (substrInd < input.length()) {
final int endInd = Math.min(substrInd + substrLength, input.length());
appender.append(input.substring(substrInd, endInd));
substrInd = endInd;
++substrLength;
}
}
// --- COPY-PASTA'D CODE, FOR TESTING PURPOSES. ---
public static class MessageDigestHashAppender extends EnvironmentAppender {
final MessageDigest hasher;
public MessageDigestHashAppender() throws NoSuchAlgorithmException {
// Note to the security-minded reader: we deliberately use SHA-1 here, not
// a stronger hash. These identifiers don't strictly need a cryptographic
// hash function, because there is negligible value in attacking the hash.
// We use SHA-1 because it's *shorter* -- the exact same reason that Git
// chose SHA-1.
hasher = MessageDigest.getInstance("SHA-1");
}
@Override
public void append(String s) {
try {
hasher.update(((s == null) ? "null" : s).getBytes("UTF-8"));
} catch (UnsupportedEncodingException e) {
// This can never occur. Thanks, Java.
}
}
@Override
public void append(int profileCreation) {
append(Integer.toString(profileCreation, 10));
}
@Override
public String toString() {
// We *could* use ASCII85… but the savings would be negated by the
// inclusion of JSON-unsafe characters like double-quote.
return new Base64(-1, null, false).encodeAsString(hasher.digest());
}
}
}