nmode's Git Repositories - signal-cli/blob - lib/src/main/java/org/asamk/signal/manager/helper/RecipientHelper.java

   1 package org.asamk.signal.manager.helper;
   2
   3 import org.asamk.signal.manager.api.RecipientIdentifier;
   4 import org.asamk.signal.manager.api.UnregisteredRecipientException;
   5 import org.asamk.signal.manager.config.ServiceEnvironmentConfig;
   6 import org.asamk.signal.manager.internal.SignalDependencies;
   7 import org.asamk.signal.manager.storage.SignalAccount;
   8 import org.asamk.signal.manager.storage.recipients.RecipientId;
   9 import org.signal.libsignal.usernames.BaseUsernameException;
  10 import org.signal.libsignal.usernames.Username;
  11 import org.slf4j.Logger;
  12 import org.slf4j.LoggerFactory;
  13 import org.whispersystems.signalservice.api.push.ServiceId;
  14 import org.whispersystems.signalservice.api.push.ServiceId.ACI;
  15 import org.whispersystems.signalservice.api.push.ServiceId.PNI;
  16 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  17 import org.whispersystems.signalservice.api.push.exceptions.CdsiInvalidTokenException;
  18 import org.whispersystems.signalservice.api.services.CdsiV2Service;
  19
  20 import java.io.IOException;
  21 import java.util.Collection;
  22 import java.util.HashMap;
  23 import java.util.HashSet;
  24 import java.util.Map;
  25 import java.util.Optional;
  26 import java.util.Set;
  27
  28 import static org.asamk.signal.manager.config.ServiceConfig.MAXIMUM_ONE_OFF_REQUEST_SIZE;
  29
  30 public class RecipientHelper {
  31
  32     private final static Logger logger = LoggerFactory.getLogger(RecipientHelper.class);
  33
  34     private final SignalAccount account;
  35     private final SignalDependencies dependencies;
  36     private final ServiceEnvironmentConfig serviceEnvironmentConfig;
  37
  38     public RecipientHelper(final Context context) {
  39         this.account = context.getAccount();
  40         this.dependencies = context.getDependencies();
  41         this.serviceEnvironmentConfig = dependencies.getServiceEnvironmentConfig();
  42     }
  43
  44     public SignalServiceAddress resolveSignalServiceAddress(RecipientId recipientId) {
  45         final var address = account.getRecipientAddressResolver().resolveRecipientAddress(recipientId);
  46         if (address.number().isEmpty() || address.serviceId().isPresent()) {
  47             return address.toSignalServiceAddress();
  48         }
  49
  50         // Address in recipient store doesn't have a uuid, this shouldn't happen
  51         // Try to retrieve the uuid from the server
  52         final var number = address.number().get();
  53         final ServiceId serviceId;
  54         try {
  55             serviceId = getRegisteredUserByNumber(number);
  56         } catch (UnregisteredRecipientException e) {
  57             logger.warn("Failed to get uuid for e164 number: {}", number);
  58             // Return SignalServiceAddress with unknown UUID
  59             return address.toSignalServiceAddress();
  60         } catch (IOException e) {
  61             logger.warn("Failed to get uuid for e164 number: {}", number, e);
  62             // Return SignalServiceAddress with unknown UUID
  63             return address.toSignalServiceAddress();
  64         }
  65         return account.getRecipientAddressResolver()
  66                 .resolveRecipientAddress(account.getRecipientResolver().resolveRecipient(serviceId))
  67                 .toSignalServiceAddress();
  68     }
  69
  70     public Set<RecipientId> resolveRecipients(Collection<RecipientIdentifier.Single> recipients) throws UnregisteredRecipientException {
  71         final var recipientIds = new HashSet<RecipientId>(recipients.size());
  72         for (var number : recipients) {
  73             final var recipientId = resolveRecipient(number);
  74             recipientIds.add(recipientId);
  75         }
  76         return recipientIds;
  77     }
  78
  79     public RecipientId resolveRecipient(final RecipientIdentifier.Single recipient) throws UnregisteredRecipientException {
  80         if (recipient instanceof RecipientIdentifier.Uuid uuidRecipient) {
  81             return account.getRecipientResolver().resolveRecipient(ACI.from(uuidRecipient.uuid()));
  82         } else if (recipient instanceof RecipientIdentifier.Number numberRecipient) {
  83             final var number = numberRecipient.number();
  84             return account.getRecipientStore().resolveRecipientByNumber(number, () -> {
  85                 try {
  86                     return getRegisteredUserByNumber(number);
  87                 } catch (Exception e) {
  88                     return null;
  89                 }
  90             });
  91         } else if (recipient instanceof RecipientIdentifier.Username usernameRecipient) {
  92             final var username = usernameRecipient.username();
  93             return account.getRecipientStore().resolveRecipientByUsername(username, () -> {
  94                 try {
  95                     return getRegisteredUserByUsername(username);
  96                 } catch (Exception e) {
  97                     return null;
  98                 }
  99             });
 100         }
 101         throw new AssertionError("Unexpected RecipientIdentifier: " + recipient);
 102     }
 103
 104     public Optional<RecipientId> resolveRecipientOptional(final RecipientIdentifier.Single recipient) {
 105         try {
 106             return Optional.of(resolveRecipient(recipient));
 107         } catch (UnregisteredRecipientException e) {
 108             if (recipient instanceof RecipientIdentifier.Number r) {
 109                 return account.getRecipientStore().resolveRecipientByNumberOptional(r.number());
 110             } else {
 111                 return Optional.empty();
 112             }
 113         }
 114     }
 115
 116     public void refreshUsers() throws IOException {
 117         getRegisteredUsers(account.getRecipientStore().getAllNumbers(), false);
 118     }
 119
 120     public RecipientId refreshRegisteredUser(RecipientId recipientId) throws IOException, UnregisteredRecipientException {
 121         final var address = resolveSignalServiceAddress(recipientId);
 122         if (address.getNumber().isEmpty()) {
 123             return recipientId;
 124         }
 125         final var number = address.getNumber().get();
 126         final var serviceId = getRegisteredUserByNumber(number);
 127         return account.getRecipientTrustedResolver()
 128                 .resolveRecipientTrusted(new SignalServiceAddress(serviceId, number));
 129     }
 130
 131     public Map<String, RegisteredUser> getRegisteredUsers(
 132             final Set<String> numbers
 133     ) throws IOException {
 134         if (numbers.size() > MAXIMUM_ONE_OFF_REQUEST_SIZE) {
 135             final var allNumbers = new HashSet<>(account.getRecipientStore().getAllNumbers()) {{
 136                 addAll(numbers);
 137             }};
 138             return getRegisteredUsers(allNumbers, false);
 139         } else {
 140             return getRegisteredUsers(numbers, true);
 141         }
 142     }
 143
 144     private Map<String, RegisteredUser> getRegisteredUsers(
 145             final Set<String> numbers, final boolean isPartialRefresh
 146     ) throws IOException {
 147         Map<String, RegisteredUser> registeredUsers = getRegisteredUsersV2(numbers, isPartialRefresh, true);
 148
 149         // Store numbers as recipients, so we have the number/uuid association
 150         registeredUsers.forEach((number, u) -> account.getRecipientTrustedResolver()
 151                 .resolveRecipientTrusted(u.aci, u.pni, Optional.of(number)));
 152
 153         return registeredUsers;
 154     }
 155
 156     private ServiceId getRegisteredUserByNumber(final String number) throws IOException, UnregisteredRecipientException {
 157         final Map<String, RegisteredUser> aciMap;
 158         try {
 159             aciMap = getRegisteredUsers(Set.of(number), true);
 160         } catch (NumberFormatException e) {
 161             throw new UnregisteredRecipientException(new org.asamk.signal.manager.api.RecipientAddress(null, number));
 162         }
 163         final var user = aciMap.get(number);
 164         if (user == null) {
 165             throw new UnregisteredRecipientException(new org.asamk.signal.manager.api.RecipientAddress(null, number));
 166         }
 167         return user.getServiceId();
 168     }
 169
 170     private Map<String, RegisteredUser> getRegisteredUsersV2(
 171             final Set<String> numbers, boolean isPartialRefresh, boolean useCompat
 172     ) throws IOException {
 173         final var previousNumbers = isPartialRefresh ? Set.<String>of() : account.getCdsiStore().getAllNumbers();
 174         final var newNumbers = new HashSet<>(numbers) {{
 175             removeAll(previousNumbers);
 176         }};
 177         if (newNumbers.isEmpty() && previousNumbers.isEmpty()) {
 178             logger.debug("No new numbers to query.");
 179             return Map.of();
 180         }
 181         logger.trace("Querying CDSI for {} new numbers ({} previous), isPartialRefresh={}",
 182                 newNumbers.size(),
 183                 previousNumbers.size(),
 184                 isPartialRefresh);
 185         final var token = previousNumbers.isEmpty()
 186                 ? Optional.<byte[]>empty()
 187                 : Optional.ofNullable(account.getCdsiToken());
 188
 189         final CdsiV2Service.Response response;
 190         try {
 191             response = dependencies.getAccountManager()
 192                     .getRegisteredUsersWithCdsi(previousNumbers,
 193                             newNumbers,
 194                             account.getRecipientStore().getServiceIdToProfileKeyMap(),
 195                             useCompat,
 196                             token,
 197                             serviceEnvironmentConfig.cdsiMrenclave(),
 198                             null,
 199                             newToken -> {
 200                                 if (isPartialRefresh) {
 201                                     account.getCdsiStore().updateAfterPartialCdsQuery(newNumbers);
 202                                     // Not storing newToken for partial refresh
 203                                 } else {
 204                                     final var fullNumbers = new HashSet<>(previousNumbers) {{
 205                                         addAll(newNumbers);
 206                                     }};
 207                                     final var seenNumbers = new HashSet<>(numbers) {{
 208                                         addAll(newNumbers);
 209                                     }};
 210                                     account.getCdsiStore().updateAfterFullCdsQuery(fullNumbers, seenNumbers);
 211                                     account.setCdsiToken(newToken);
 212                                     account.setLastRecipientsRefresh(System.currentTimeMillis());
 213                                 }
 214                             });
 215         } catch (CdsiInvalidTokenException e) {
 216             account.setCdsiToken(null);
 217             account.getCdsiStore().clearAll();
 218             throw e;
 219         } catch (NumberFormatException e) {
 220             throw new IOException(e);
 221         }
 222         logger.debug("CDSI request successful, quota used by this request: {}", response.getQuotaUsedDebugOnly());
 223
 224         final var registeredUsers = new HashMap<String, RegisteredUser>();
 225         response.getResults()
 226                 .forEach((key, value) -> registeredUsers.put(key,
 227                         new RegisteredUser(value.getAci(), Optional.of(value.getPni()))));
 228         return registeredUsers;
 229     }
 230
 231     private ACI getRegisteredUserByUsername(String username) throws IOException, BaseUsernameException {
 232         return dependencies.getAccountManager().getAciByUsername(new Username(username));
 233     }
 234
 235     public record RegisteredUser(Optional<ACI> aci, Optional<PNI> pni) {
 236
 237         public RegisteredUser {
 238             aci = aci.isPresent() && aci.get().isUnknown() ? Optional.empty() : aci;
 239             pni = pni.isPresent() && pni.get().isUnknown() ? Optional.empty() : pni;
 240             if (aci.isEmpty() && pni.isEmpty()) {
 241                 throw new AssertionError("Must have either a ACI or PNI!");
 242             }
 243         }
 244
 245         public ServiceId getServiceId() {
 246             return aci.map(a -> (ServiceId) a).or(this::pni).orElse(null);
 247         }
 248     }
 249 }