Example usage for com.google.common.hash HashCode fromString

Introduction

In this page you can find the example usage for com.google.common.hash HashCode fromString.

Prototype

@CheckReturnValue
public static HashCode fromString(String string) 

Source Link

Document

Creates a HashCode from a hexadecimal ( base 16 ) encoded string.

Usage

From source file:com.google.devtools.build.lib.remote.FakeActionInputFileCache.java

@Override
@Nullable/*from  www  .  j  av  a2s.  c o m*/
public ActionInput getInputFromDigest(ByteString hexDigest) {
    HashCode code = HashCode.fromString(hexDigest.toStringUtf8());
    ByteString digest = ByteString.copyFrom(code.asBytes());
    return Preconditions.checkNotNull(cas.inverse().get(digest));
}

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From source file:com.facebook.buck.core.rulekey.RuleKey.java

/**
 * @param hashString string that conforms to the contract of the return value of {@link
 *     com.google.common.hash.HashCode#toString()}.
 *///  ww  w . j a  v  a2s .c o  m
public RuleKey(String hashString) {
    this(HashCode.fromString(hashString));
}

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From source file:org.eclipse.che.security.SHA512PasswordEncryptor.java

@Override
public boolean test(String password, String passwordHash) {
    requireNonNull(password, "Required non-null password");
    requireNonNull(passwordHash, "Required non-null password's hash");
    // retrieve salt from the hash
    final int passwordHashLength = ENCRYPTED_PASSWORD_BYTES_LENGTH * 2;
    if (passwordHash.length() < passwordHashLength + SALT_BYTES_LENGTH * 2) {
        return false;
    }//w w w .ja v  a2  s. c o m
    final HashCode saltHash = HashCode.fromString(passwordHash.substring(passwordHashLength));
    // sha1(password + salt)
    final HashCode hash = Hashing.sha512()
            .hashBytes(Bytes.concat(password.getBytes(PWD_CHARSET), saltHash.asBytes()));
    // test sha1(password + salt) + salt == passwordHash
    return (hash.toString() + saltHash.toString()).equals(passwordHash);
}

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From source file:com.facebook.buck.util.cache.JarContentHasher.java

public ImmutableMap<Path, HashCodeAndFileType> getContentHashes() throws IOException {
    Manifest manifest = filesystem.getJarManifest(jarRelativePath);
    if (manifest == null) {
        throw new UnsupportedOperationException(
                "Cache does not know how to return hash codes for archive members except "
                        + "when the archive contains a META-INF/MANIFEST.MF with "
                        + HashingDeterministicJarWriter.DIGEST_ATTRIBUTE_NAME + " attributes for each file.");
    }//from  w  w w .  j a  v a  2  s.  c  o m

    ImmutableMap.Builder<Path, HashCodeAndFileType> builder = ImmutableMap.builder();
    for (Map.Entry<String, Attributes> nameAttributesEntry : manifest.getEntries().entrySet()) {
        Path memberPath = Paths.get(nameAttributesEntry.getKey());
        Attributes attributes = nameAttributesEntry.getValue();
        String hashStringValue = attributes.getValue(HashingDeterministicJarWriter.DIGEST_ATTRIBUTE_NAME);
        if (hashStringValue == null) {
            continue;
        }

        HashCode memberHash = HashCode.fromString(hashStringValue);
        HashCodeAndFileType memberHashCodeAndFileType = HashCodeAndFileType.ofFile(memberHash);

        builder.put(memberPath, memberHashCodeAndFileType);
    }

    return builder.build();
}

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From source file:com.facebook.buck.util.sha1.Sha1HashCode.java

public static Sha1HashCode of(String hash) {
    Preconditions.checkArgument(SHA1_PATTERN.matcher(hash).matches(), "Should be 40 lowercase hex chars: %s.",
            hash);/*  ww w .  j ava  2s .co  m*/
    // Note that this could be done with less memory if we created the byte[20] ourselves and
    // walked the string and converted the hex chars into bytes as we went.
    byte[] bytes = HashCode.fromString(hash).asBytes();
    return fromBytes(bytes);
}

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From source file:com.facebook.buck.util.cache.impl.DefaultJarContentHasher.java

@Override
public ImmutableMap<Path, HashCodeAndFileType> getContentHashes() throws IOException {
    Manifest manifest = filesystem.getJarManifest(jarRelativePath);
    if (manifest == null) {
        throw new UnsupportedOperationException(
                "Cache does not know how to return hash codes for archive members except "
                        + "when the archive contains a META-INF/MANIFEST.MF with "
                        + CustomJarOutputStream.DIGEST_ATTRIBUTE_NAME + " attributes for each file.");
    }/*from   w w  w  . j  ava 2s  .  c  o  m*/

    ImmutableMap.Builder<Path, HashCodeAndFileType> builder = ImmutableMap.builder();
    for (Map.Entry<String, Attributes> nameAttributesEntry : manifest.getEntries().entrySet()) {
        Path memberPath = Paths.get(nameAttributesEntry.getKey());
        Attributes attributes = nameAttributesEntry.getValue();
        String hashStringValue = attributes.getValue(CustomJarOutputStream.DIGEST_ATTRIBUTE_NAME);
        if (hashStringValue == null) {
            continue;
        }

        HashCode memberHash = HashCode.fromString(hashStringValue);
        HashCodeAndFileType memberHashCodeAndFileType = HashCodeAndFileType.ofFile(memberHash);

        builder.put(memberPath, memberHashCodeAndFileType);
    }

    return builder.build();
}

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From source file:com.facebook.buck.rules.Manifest.java

/**
 * Deserialize an existing manifest from the given {@link InputStream}.
 *//*from   w  w  w .  java2 s.co m*/
public Manifest(InputStream rawInput) throws IOException {
    DataInputStream input = new DataInputStream(rawInput);

    Preconditions.checkState(input.readInt() == VERSION);

    int numberOfHeaders = input.readInt();
    headers = new ArrayList<>(numberOfHeaders);
    headerIndices = new HashMap<>(numberOfHeaders);
    for (int index = 0; index < numberOfHeaders; index++) {
        String header = input.readUTF();
        headers.add(header);
        headerIndices.put(header, index);
    }

    int numberOfHashes = input.readInt();
    hashes = new ArrayList<>(numberOfHashes);
    hashIndices = new HashMap<>(numberOfHashes);
    for (int index = 0; index < numberOfHashes; index++) {
        int headerIndex = input.readInt();
        HashCode headerHash = HashCode.fromString(input.readUTF());
        hashes.add(new Pair<>(headerIndex, headerHash));
        hashIndices.put(headerHash, index);
    }

    int numberOfEntries = input.readInt();
    entries = new ArrayList<>(numberOfEntries);
    for (int entryIndex = 0; entryIndex < numberOfEntries; entryIndex++) {
        int numberOfEntryHashes = input.readInt();
        int[] entryHashes = new int[numberOfEntryHashes];
        for (int hashIndex = 0; hashIndex < numberOfEntryHashes; hashIndex++) {
            entryHashes[hashIndex] = input.readInt();
        }
        RuleKey key = new RuleKey(input.readUTF());
        entries.add(new Pair<>(key, entryHashes));
    }
}

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From source file:org.eclipse.che.security.PBKDF2PasswordEncryptor.java

@Override
public boolean test(String password, String encryptedPassword) {
    requireNonNull(password, "Required non-null password");
    requireNonNull(password, "Required non-null encrypted password");
    final Matcher matcher = PWD_REGEX.matcher(encryptedPassword);
    if (!matcher.matches()) {
        return false;
    }/* w ww .  j a  v  a  2  s.  co m*/
    // retrieve salt, password hash and iterations count from hash
    final Integer iterations = tryParse(matcher.group("iterations"));
    final String salt = matcher.group("saltHash");
    final String pwdHash = matcher.group("pwdHash");
    // compute password's hash and test whether it matches to given hash
    final HashCode hash = computeHash(password.toCharArray(), HashCode.fromString(salt).asBytes(), iterations);
    return hash.toString().equals(pwdHash);
}

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From source file:de.siegmar.securetransfer.controller.ReceiveController.java

private void prepareMessage(final String id, final String linkSecret, final String password, final Model model,
        final HttpSession session) {

    final DecryptedMessage decryptedMessage = messageService.decryptAndBurnMessage(id,
            HashCode.fromString(linkSecret).asBytes(), password);

    model.addAttribute("decryptedMessage", decryptedMessage);

    // store iv to session to prevent download link "sharing"
    decryptedMessage.getFiles()//from   w  ww. ja  va  2  s  . com
            .forEach(f -> session.setAttribute(buildSessionAttr(f.getId()), f.getKeyIv().getIv()));
}

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From source file:com.facebook.buck.core.build.engine.manifest.Manifest.java

/** Deserialize an existing manifest from the given {@link InputStream}. */
public Manifest(InputStream rawInput) throws IOException {
    DataInputStream input = new DataInputStream(rawInput);

    // Verify the manifest version.
    int version = input.readInt();
    Preconditions.checkState(version == VERSION, "invalid version: %s != %s", version, VERSION);

    key = new RuleKey(input.readUTF());

    int numberOfHeaders = input.readInt();
    LOG.verbose("%s: loading %d input entries", this.key, numberOfHeaders);
    inputs = new ArrayList<>(numberOfHeaders);
    inputIndices = new HashMap<>(numberOfHeaders);
    for (int index = 0; index < numberOfHeaders; index++) {
        String inputName = input.readUTF();
        inputs.add(inputName);//  ww  w .  j  a v  a 2s.c  om
        inputIndices.put(inputName, index);
    }

    int numberOfHashes = input.readInt();
    LOG.verbose("%s: loading %d hash entries", this.key, numberOfHashes);
    hashes = new ArrayList<>(numberOfHashes);
    hashIndices = new HashMap<>(numberOfHashes);
    for (int index = 0; index < numberOfHashes; index++) {
        int inputIndex = input.readInt();
        HashCode inputHash = HashCode.fromString(input.readUTF());
        hashes.add(new Pair<>(inputIndex, inputHash));
        hashIndices.put(inputHash, index);
    }

    int numberOfEntries = input.readInt();
    LOG.verbose("%s: loading %d dep file rule key entries", this.key, numberOfEntries);
    entries = new ArrayList<>(numberOfEntries);
    for (int entryIndex = 0; entryIndex < numberOfEntries; entryIndex++) {
        int numberOfEntryHashes = input.readInt();
        int[] entryHashes = new int[numberOfEntryHashes];
        for (int hashIndex = 0; hashIndex < numberOfEntryHashes; hashIndex++) {
            entryHashes[hashIndex] = input.readInt();
        }
        RuleKey key = new RuleKey(input.readUTF());
        LOG.verbose("%s: loaded entry for dep file rule key %s", this.key, key);
        entries.add(new Pair<>(key, entryHashes));
    }
}

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