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Represent identity keys as byte arrays

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This commit is contained in:
Jon Chambers
2023-05-19 10:35:42 -04:00
committed by Jon Chambers
parent 796863341d
commit d832eaa759
32 changed files with 224 additions and 195 deletions
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3
service/src/main/java/org/whispersystems/textsecuregcm/auth/CertificateGenerator.java
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@@ -8,7 +8,6 @@ package org.whispersystems.textsecuregcm.auth;
import com.google.protobuf.ByteString;
import com.google.protobuf.InvalidProtocolBufferException;
import java.security.InvalidKeyException;
import java.util.Base64;
import java.util.concurrent.TimeUnit;
import org.signal.libsignal.protocol.ecc.Curve;
import org.signal.libsignal.protocol.ecc.ECPrivateKey;
@@ -35,7 +34,7 @@ public class CertificateGenerator {
SenderCertificate.Certificate.Builder builder = SenderCertificate.Certificate.newBuilder()
.setSenderDevice(Math.toIntExact(device.getId()))
.setExpires(System.currentTimeMillis() + TimeUnit.DAYS.toMillis(expiresDays))
.setIdentityKey(ByteString.copyFrom(Base64.getDecoder().decode(account.getIdentityKey())))
.setIdentityKey(ByteString.copyFrom(account.getIdentityKey()))
.setSigner(serverCertificate)
.setSenderUuid(account.getUuid().toString());

5
service/src/main/java/org/whispersystems/textsecuregcm/controllers/CertificateController.java
View File

@@ -31,6 +31,8 @@ import javax.ws.rs.QueryParam;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.apache.commons.lang3.ArrayUtils;
import org.signal.libsignal.zkgroup.auth.ServerZkAuthOperations;
import org.signal.libsignal.zkgroup.calllinks.CallLinkAuthCredentialResponse;
import org.signal.libsignal.zkgroup.GenericServerSecretParams;
@@ -38,7 +40,6 @@ import org.whispersystems.textsecuregcm.auth.AuthenticatedAccount;
import org.whispersystems.textsecuregcm.auth.CertificateGenerator;
import org.whispersystems.textsecuregcm.entities.DeliveryCertificate;
import org.whispersystems.textsecuregcm.entities.GroupCredentials;
import org.whispersystems.textsecuregcm.util.Util;
@SuppressWarnings("OptionalUsedAsFieldOrParameterType")
@Path("/v1/certificate")
@@ -74,7 +75,7 @@ public class CertificateController {
@QueryParam("includeE164") @DefaultValue("true") boolean includeE164)
throws InvalidKeyException {
if (Util.isEmpty(auth.getAccount().getIdentityKey())) {
if (ArrayUtils.isEmpty(auth.getAccount().getIdentityKey())) {
throw new WebApplicationException(Response.Status.BAD_REQUEST);
}

20
service/src/main/java/org/whispersystems/textsecuregcm/controllers/KeysController.java
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@@ -13,19 +13,14 @@ import io.micrometer.core.instrument.Metrics;
import io.micrometer.core.instrument.Tags;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.enums.ParameterIn;
import io.swagger.v3.oas.annotations.media.Schema;
import io.swagger.v3.oas.annotations.parameters.RequestBody;
import io.swagger.v3.oas.annotations.responses.ApiResponse;
import io.swagger.v3.oas.annotations.tags.Tag;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.UUID;
import java.util.stream.Collectors;
import javax.validation.Valid;
import javax.validation.constraints.NotNull;
import javax.ws.rs.Consumes;
@@ -40,7 +35,8 @@ import javax.ws.rs.QueryParam;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.ArrayUtils;
import org.whispersystems.textsecuregcm.auth.Anonymous;
import org.whispersystems.textsecuregcm.auth.AuthenticatedAccount;
import org.whispersystems.textsecuregcm.auth.ChangesDeviceEnabledState;
@@ -120,11 +116,11 @@ public class KeysController {
updateAccount = true;
}
final String oldIdentityKey = usePhoneNumberIdentity ? account.getPhoneNumberIdentityKey() : account.getIdentityKey();
if (!preKeys.getIdentityKey().equals(oldIdentityKey)) {
final byte[] oldIdentityKey = usePhoneNumberIdentity ? account.getPhoneNumberIdentityKey() : account.getIdentityKey();
if (!Arrays.equals(preKeys.getIdentityKey(), oldIdentityKey)) {
updateAccount = true;
final boolean hasIdentityKey = StringUtils.isNotBlank(oldIdentityKey);
final boolean hasIdentityKey = ArrayUtils.isNotEmpty(oldIdentityKey);
final Tags tags = Tags.of(UserAgentTagUtil.getPlatformTag(userAgent))
.and(HAS_IDENTITY_KEY_TAG_NAME, String.valueOf(hasIdentityKey))
.and(IDENTITY_TYPE_TAG_NAME, usePhoneNumberIdentity ? "pni" : "aci");
@@ -183,7 +179,7 @@ public class KeysController {
@HeaderParam(HttpHeaders.USER_AGENT) String userAgent)
throws RateLimitExceededException {
if (!auth.isPresent() && !accessKey.isPresent()) {
if (auth.isEmpty() && accessKey.isEmpty()) {
throw new WebApplicationException(Response.Status.UNAUTHORIZED);
}
@@ -225,7 +221,7 @@ public class KeysController {
}
}
final String identityKey = usePhoneNumberIdentity ? target.getPhoneNumberIdentityKey() : target.getIdentityKey();
final byte[] identityKey = usePhoneNumberIdentity ? target.getPhoneNumberIdentityKey() : target.getIdentityKey();
if (responseItems.isEmpty()) {
return Response.status(404).build();

9
service/src/main/java/org/whispersystems/textsecuregcm/controllers/ProfileController.java
View File

@@ -383,13 +383,8 @@ public class ProfileController {
if (account.getIdentityKey() == null || account.getPhoneNumberIdentityKey() == null) {
return;
}
byte[] identityKeyBytes;
try {
identityKeyBytes = Base64.getDecoder().decode(usePhoneNumberIdentity ? account.getPhoneNumberIdentityKey()
: account.getIdentityKey());
} catch (IllegalArgumentException ignored) {
return;
}
final byte[] identityKeyBytes =
usePhoneNumberIdentity ? account.getPhoneNumberIdentityKey() : account.getIdentityKey();
md.reset();
byte[] digest = md.digest(identityKeyBytes);
byte[] fingerprint = Util.truncate(digest, 4);

12
service/src/main/java/org/whispersystems/textsecuregcm/entities/BaseProfileResponse.java
View File

@@ -6,13 +6,19 @@
package org.whispersystems.textsecuregcm.entities;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import org.whispersystems.textsecuregcm.util.ByteArrayAdapter;
import java.util.List;
import java.util.UUID;
public class BaseProfileResponse {
@JsonProperty
private String identityKey;
@JsonSerialize(using = ByteArrayAdapter.Serializing.class)
@JsonDeserialize(using = ByteArrayAdapter.Deserializing.class)
private byte[] identityKey;
@JsonProperty
private String unidentifiedAccess;
@@ -32,7 +38,7 @@ public class BaseProfileResponse {
public BaseProfileResponse() {
}
public BaseProfileResponse(final String identityKey,
public BaseProfileResponse(final byte[] identityKey,
final String unidentifiedAccess,
final boolean unrestrictedUnidentifiedAccess,
final UserCapabilities capabilities,
@@ -47,7 +53,7 @@ public class BaseProfileResponse {
this.uuid = uuid;
}
public String getIdentityKey() {
public byte[] getIdentityKey() {
return identityKey;
}

4
service/src/main/java/org/whispersystems/textsecuregcm/entities/ChangeNumberRequest.java
View File

@@ -15,6 +15,7 @@ import javax.annotation.Nullable;
import javax.validation.Valid;
import javax.validation.constraints.AssertTrue;
import javax.validation.constraints.NotBlank;
import javax.validation.constraints.NotEmpty;
import javax.validation.constraints.NotNull;
import org.whispersystems.textsecuregcm.util.ByteArrayAdapter;
@@ -36,7 +37,8 @@ public record ChangeNumberRequest(
@JsonProperty("reglock") @Nullable String registrationLock,
@Schema(description="the new public identity key to use for the phone-number identity associated with the new phone number")
@NotBlank String pniIdentityKey,
@JsonDeserialize(using = ByteArrayAdapter.Deserializing.class)
@NotEmpty byte[] pniIdentityKey,
@Schema(description="""
A list of synchronization messages to send to companion devices to supply the private keys

6
service/src/main/java/org/whispersystems/textsecuregcm/entities/ChangePhoneNumberRequest.java
View File

@@ -6,7 +6,10 @@
package org.whispersystems.textsecuregcm.entities;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import io.swagger.v3.oas.annotations.media.Schema;
import org.whispersystems.textsecuregcm.util.ByteArrayAdapter;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
@@ -27,7 +30,8 @@ public record ChangePhoneNumberRequest(
@JsonProperty("reglock") @Nullable String registrationLock,
@Schema(description="the new public identity key to use for the phone-number identity associated with the new phone number")
@Nullable String pniIdentityKey,
@JsonDeserialize(using = ByteArrayAdapter.Deserializing.class)
@Nullable byte[] pniIdentityKey,
@Schema(description="""
A list of synchronization messages to send to companion devices to supply the private keys

7
service/src/main/java/org/whispersystems/textsecuregcm/entities/PhoneNumberIdentityKeyDistributionRequest.java
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@@ -10,17 +10,18 @@ import io.swagger.v3.oas.annotations.media.Schema;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.annotation.Nullable;
import javax.validation.Valid;
import javax.validation.constraints.AssertTrue;
import javax.validation.constraints.NotBlank;
import javax.validation.constraints.NotEmpty;
import javax.validation.constraints.NotNull;
import org.whispersystems.textsecuregcm.util.ByteArrayAdapter;
public record PhoneNumberIdentityKeyDistributionRequest(
@NotBlank
@NotEmpty
@JsonDeserialize(using = ByteArrayAdapter.Deserializing.class)
@Schema(description="the new identity key for this account's phone-number identity")
String pniIdentityKey,
byte[] pniIdentityKey,
@NotNull
@Valid

9
service/src/main/java/org/whispersystems/textsecuregcm/entities/PreKeyResponse.java
View File

@@ -6,16 +6,19 @@ package org.whispersystems.textsecuregcm.entities;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import com.google.common.annotations.VisibleForTesting;
import io.swagger.v3.oas.annotations.media.Schema;
import org.whispersystems.textsecuregcm.util.ByteArrayAdapter;
import java.util.List;
public class PreKeyResponse {
@JsonProperty
@JsonSerialize(using = ByteArrayAdapter.Serializing.class)
@Schema(description="the public identity key for the requested identity")
private String identityKey;
private byte[] identityKey;
@JsonProperty
@Schema(description="information about each requested device")
@@ -23,13 +26,13 @@ public class PreKeyResponse {
public PreKeyResponse() {}
public PreKeyResponse(String identityKey, List<PreKeyResponseItem> devices) {
public PreKeyResponse(byte[] identityKey, List<PreKeyResponseItem> devices) {
this.identityKey = identityKey;
this.devices = devices;
}
@VisibleForTesting
public String getIdentityKey() {
public byte[] getIdentityKey() {
return identityKey;
}

4
service/src/main/java/org/whispersystems/textsecuregcm/entities/PreKeySignatureValidator.java
View File

@@ -8,7 +8,6 @@ import static com.codahale.metrics.MetricRegistry.name;
import io.micrometer.core.instrument.Counter;
import io.micrometer.core.instrument.Metrics;
import java.util.Base64;
import java.util.Collection;
import org.signal.libsignal.protocol.InvalidKeyException;
import org.signal.libsignal.protocol.ecc.Curve;
@@ -18,9 +17,8 @@ public abstract class PreKeySignatureValidator {
public static final Counter INVALID_SIGNATURE_COUNTER =
Metrics.counter(name(PreKeySignatureValidator.class, "invalidPreKeySignature"));
public static boolean validatePreKeySignatures(final String identityKeyB64, final Collection<SignedPreKey> spks) {
public static boolean validatePreKeySignatures(final byte[] identityKeyBytes, final Collection<SignedPreKey> spks) {
try {
final byte[] identityKeyBytes = Base64.getDecoder().decode(identityKeyB64);
final ECPublicKey identityKey = Curve.decodePoint(identityKeyBytes, 0);
final boolean success = spks.stream()

12
service/src/main/java/org/whispersystems/textsecuregcm/entities/PreKeyState.java
View File

@@ -5,8 +5,11 @@
package org.whispersystems.textsecuregcm.entities;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.google.common.annotations.VisibleForTesting;
import io.swagger.v3.oas.annotations.media.Schema;
import org.whispersystems.textsecuregcm.util.ByteArrayAdapter;
import java.util.ArrayList;
import java.util.List;
import javax.validation.Valid;
@@ -48,23 +51,24 @@ public class PreKeyState {
private SignedPreKey pqLastResortPreKey;
@JsonProperty
@JsonDeserialize(using = ByteArrayAdapter.Deserializing.class)
@NotEmpty
@NotNull
@Schema(description="Required. " +
"The public identity key for this identity (account or phone-number identity). " +
"If this device is not the primary device for the account, " +
"must match the existing stored identity key for this identity.")
private String identityKey;
private byte[] identityKey;
public PreKeyState() {}
@VisibleForTesting
public PreKeyState(String identityKey, SignedPreKey signedPreKey, List<PreKey> keys) {
public PreKeyState(byte[] identityKey, SignedPreKey signedPreKey, List<PreKey> keys) {
this(identityKey, signedPreKey, keys, null, null);
}
@VisibleForTesting
public PreKeyState(String identityKey, SignedPreKey signedPreKey, List<PreKey> keys, List<SignedPreKey> pqKeys, SignedPreKey pqLastResortKey) {
public PreKeyState(byte[] identityKey, SignedPreKey signedPreKey, List<PreKey> keys, List<SignedPreKey> pqKeys, SignedPreKey pqLastResortKey) {
this.identityKey = identityKey;
this.signedPreKey = signedPreKey;
this.preKeys = keys;
@@ -88,7 +92,7 @@ public class PreKeyState {
return pqLastResortPreKey;
}
public String getIdentityKey() {
public byte[] getIdentityKey() {
return identityKey;
}

14
service/src/main/java/org/whispersystems/textsecuregcm/entities/RegistrationRequest.java
View File

@@ -9,9 +9,11 @@ import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonUnwrapped;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import com.google.common.annotations.VisibleForTesting;
import io.swagger.v3.oas.annotations.media.Schema;
import org.whispersystems.textsecuregcm.util.ByteArrayAdapter;
import org.whispersystems.textsecuregcm.util.OptionalBase64ByteArrayDeserializer;
import javax.validation.Valid;
import javax.validation.constraints.AssertTrue;
@@ -53,14 +55,16 @@ public record RegistrationRequest(@Schema(requiredMode = Schema.RequiredMode.NOT
provided, an account will be created "atomically," and all other properties needed for
atomic account creation must also be present.
""")
Optional<String> aciIdentityKey,
@JsonDeserialize(using = OptionalBase64ByteArrayDeserializer.class)
Optional<byte[]> aciIdentityKey,
@Schema(requiredMode = Schema.RequiredMode.NOT_REQUIRED, description = """
The PNI-associated identity key for the account, encoded as a base64 string. If
provided, an account will be created "atomically," and all other properties needed for
atomic account creation must also be present.
""")
Optional<String> pniIdentityKey,
@JsonDeserialize(using = OptionalBase64ByteArrayDeserializer.class)
Optional<byte[]> pniIdentityKey,
@JsonUnwrapped
@JsonProperty(access = JsonProperty.Access.READ_ONLY)
@@ -72,8 +76,8 @@ public record RegistrationRequest(@Schema(requiredMode = Schema.RequiredMode.NOT
@JsonProperty("recoveryPassword") byte[] recoveryPassword,
@JsonProperty("accountAttributes") AccountAttributes accountAttributes,
@JsonProperty("skipDeviceTransfer") boolean skipDeviceTransfer,
@JsonProperty("aciIdentityKey") Optional<String> aciIdentityKey,
@JsonProperty("pniIdentityKey") Optional<String> pniIdentityKey,
@JsonProperty("aciIdentityKey") Optional<byte[]> aciIdentityKey,
@JsonProperty("pniIdentityKey") Optional<byte[]> pniIdentityKey,
@JsonProperty("aciSignedPreKey") Optional<@Valid SignedPreKey> aciSignedPreKey,
@JsonProperty("pniSignedPreKey") Optional<@Valid SignedPreKey> pniSignedPreKey,
@JsonProperty("aciPqLastResortPreKey") Optional<@Valid SignedPreKey> aciPqLastResortPreKey,
@@ -97,7 +101,7 @@ public record RegistrationRequest(@Schema(requiredMode = Schema.RequiredMode.NOT
}
@SuppressWarnings("OptionalUsedAsFieldOrParameterType")
private static boolean validatePreKeySignature(final Optional<String> maybeIdentityKey,
private static boolean validatePreKeySignature(final Optional<byte[]> maybeIdentityKey,
final Optional<SignedPreKey> maybeSignedPreKey) {
return maybeSignedPreKey.map(signedPreKey -> maybeIdentityKey

17
service/src/main/java/org/whispersystems/textsecuregcm/storage/Account.java
View File

@@ -24,6 +24,7 @@ import org.whispersystems.textsecuregcm.auth.SaltedTokenHash;
import org.whispersystems.textsecuregcm.auth.StoredRegistrationLock;
import org.whispersystems.textsecuregcm.entities.AccountAttributes;
import org.whispersystems.textsecuregcm.storage.Device.DeviceCapabilities;
import org.whispersystems.textsecuregcm.util.ByteArrayAdapter;
import org.whispersystems.textsecuregcm.util.ByteArrayBase64UrlAdapter;
import org.whispersystems.textsecuregcm.util.Util;
@@ -57,10 +58,14 @@ public class Account {
private List<Device> devices = new ArrayList<>();
@JsonProperty
private String identityKey;
@JsonSerialize(using = ByteArrayAdapter.Serializing.class)
@JsonDeserialize(using = ByteArrayAdapter.Deserializing.class)
private byte[] identityKey;
@JsonProperty("pniIdentityKey")
private String phoneNumberIdentityKey;
@JsonSerialize(using = ByteArrayAdapter.Serializing.class)
@JsonDeserialize(using = ByteArrayAdapter.Deserializing.class)
private byte[] phoneNumberIdentityKey;
@JsonProperty("cpv")
private String currentProfileVersion;
@@ -282,23 +287,23 @@ public class Account {
this.canonicallyDiscoverable = canonicallyDiscoverable;
}
public void setIdentityKey(String identityKey) {
public void setIdentityKey(byte[] identityKey) {
requireNotStale();
this.identityKey = identityKey;
}
public String getIdentityKey() {
public byte[] getIdentityKey() {
requireNotStale();
return identityKey;
}
public String getPhoneNumberIdentityKey() {
public byte[] getPhoneNumberIdentityKey() {
return phoneNumberIdentityKey;
}
public void setPhoneNumberIdentityKey(final String phoneNumberIdentityKey) {
public void setPhoneNumberIdentityKey(final byte[] phoneNumberIdentityKey) {
this.phoneNumberIdentityKey = phoneNumberIdentityKey;
}

18
service/src/main/java/org/whispersystems/textsecuregcm/storage/AccountsManager.java
View File

@@ -28,7 +28,6 @@ import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.UUID;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.atomic.AtomicReference;
@@ -242,11 +241,12 @@ public class AccountsManager {
}
}
public Account changeNumber(final Account account, final String number,
@Nullable final String pniIdentityKey,
@Nullable final Map<Long, SignedPreKey> pniSignedPreKeys,
@Nullable final Map<Long, SignedPreKey> pniPqLastResortPreKeys,
@Nullable final Map<Long, Integer> pniRegistrationIds) throws InterruptedException, MismatchedDevicesException {
public Account changeNumber(final Account account,
final String number,
@Nullable final byte[] pniIdentityKey,
@Nullable final Map<Long, SignedPreKey> pniSignedPreKeys,
@Nullable final Map<Long, SignedPreKey> pniPqLastResortPreKeys,
@Nullable final Map<Long, Integer> pniRegistrationIds) throws InterruptedException, MismatchedDevicesException {
final String originalNumber = account.getNumber();
final UUID originalPhoneNumberIdentifier = account.getPhoneNumberIdentifier();
@@ -308,7 +308,7 @@ public class AccountsManager {
}
public Account updatePniKeys(final Account account,
final String pniIdentityKey,
final byte[] pniIdentityKey,
final Map<Long, SignedPreKey> pniSignedPreKeys,
@Nullable final Map<Long, SignedPreKey> pniPqLastResortPreKeys,
final Map<Long, Integer> pniRegistrationIds) throws MismatchedDevicesException {
@@ -327,7 +327,7 @@ public class AccountsManager {
}
private boolean setPniKeys(final Account account,
@Nullable final String pniIdentityKey,
@Nullable final byte[] pniIdentityKey,
@Nullable final Map<Long, SignedPreKey> pniSignedPreKeys,
@Nullable final Map<Long, Integer> pniRegistrationIds) {
if (ObjectUtils.allNull(pniIdentityKey, pniSignedPreKeys, pniRegistrationIds)) {
@@ -336,7 +336,7 @@ public class AccountsManager {
throw new IllegalArgumentException("PNI identity key, signed pre-keys, and registration IDs must be all null or all non-null");
}
boolean changed = !pniIdentityKey.equals(account.getPhoneNumberIdentityKey());
boolean changed = !Arrays.equals(pniIdentityKey, account.getPhoneNumberIdentityKey());
for (Device device : account.getDevices()) {
if (!device.isEnabled()) {

5
service/src/main/java/org/whispersystems/textsecuregcm/storage/ChangeNumberManager.java
View File

@@ -5,7 +5,6 @@
package org.whispersystems.textsecuregcm.storage;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Strings;
import com.google.protobuf.ByteString;
import org.apache.commons.lang3.ObjectUtils;
import org.slf4j.Logger;
@@ -40,7 +39,7 @@ public class ChangeNumberManager {
}
public Account changeNumber(final Account account, final String number,
@Nullable final String pniIdentityKey,
@Nullable final byte[] pniIdentityKey,
@Nullable final Map<Long, SignedPreKey> deviceSignedPreKeys,
@Nullable final Map<Long, SignedPreKey> devicePqLastResortPreKeys,
@Nullable final List<IncomingMessage> deviceMessages,
@@ -80,7 +79,7 @@ public class ChangeNumberManager {
}
public Account updatePniKeys(final Account account,
final String pniIdentityKey,
final byte[] pniIdentityKey,
final Map<Long, SignedPreKey> deviceSignedPreKeys,
@Nullable final Map<Long, SignedPreKey> devicePqLastResortPreKeys,
final List<IncomingMessage> deviceMessages,

1
service/src/main/java/org/whispersystems/textsecuregcm/util/ByteArrayAdapter.java
View File

@@ -31,4 +31,3 @@ public class ByteArrayAdapter {
}
}
}

22
service/src/main/java/org/whispersystems/textsecuregcm/util/OptionalBase64ByteArrayDeserializer.java Normal file
View File

@@ -0,0 +1,22 @@
package org.whispersystems.textsecuregcm.util;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import java.io.IOException;
import java.util.Base64;
import java.util.Optional;
public class OptionalBase64ByteArrayDeserializer extends JsonDeserializer<Optional<byte[]>> {
@Override
public Optional<byte[]> deserialize(final JsonParser jsonParser, final DeserializationContext deserializationContext) throws IOException {
return Optional.of(Base64.getDecoder().decode(jsonParser.getValueAsString()));
}
@Override
public Optional<byte[]> getNullValue(DeserializationContext ctxt) {
return Optional.empty();
}
}