nmode's Git Repositories - signal-cli/blob - lib/src/main/java/org/asamk/signal/manager/storage/senderKeys/LegacySenderKeyRecordStore.java

   1 package org.asamk.signal.manager.storage.senderKeys;
   2
   3 import org.asamk.signal.manager.api.Pair;
   4 import org.asamk.signal.manager.helper.RecipientAddressResolver;
   5 import org.asamk.signal.manager.storage.recipients.RecipientId;
   6 import org.asamk.signal.manager.storage.recipients.RecipientResolver;
   7 import org.signal.libsignal.protocol.InvalidMessageException;
   8 import org.signal.libsignal.protocol.groups.state.SenderKeyRecord;
   9 import org.slf4j.Logger;
  10 import org.slf4j.LoggerFactory;
  11
  12 import java.io.File;
  13 import java.io.FileInputStream;
  14 import java.io.IOException;
  15 import java.nio.file.Files;
  16 import java.util.Arrays;
  17 import java.util.List;
  18 import java.util.Objects;
  19 import java.util.UUID;
  20 import java.util.regex.Matcher;
  21 import java.util.regex.Pattern;
  22
  23 public class LegacySenderKeyRecordStore {
  24
  25     private final static Logger logger = LoggerFactory.getLogger(LegacySenderKeyRecordStore.class);
  26
  27     public static void migrate(
  28             final File senderKeysPath,
  29             final RecipientResolver resolver,
  30             final RecipientAddressResolver addressResolver,
  31             final SenderKeyStore senderKeyStore
  32     ) {
  33         final var files = senderKeysPath.listFiles();
  34         if (files == null) {
  35             return;
  36         }
  37
  38         final var senderKeys = parseFileNames(files, resolver).stream().map(key -> {
  39             final var record = loadSenderKeyLocked(key, senderKeysPath);
  40             final var serviceId = addressResolver.resolveRecipientAddress(key.recipientId).serviceId();
  41             if (record == null || serviceId.isEmpty()) {
  42                 return null;
  43             }
  44             return new Pair<>(new SenderKeyRecordStore.Key(serviceId.get(), key.deviceId, key.distributionId), record);
  45         }).filter(Objects::nonNull).toList();
  46
  47         senderKeyStore.addLegacySenderKeys(senderKeys);
  48         deleteAllSenderKeys(senderKeysPath);
  49     }
  50
  51     private static void deleteAllSenderKeys(File senderKeysPath) {
  52         final var files = senderKeysPath.listFiles();
  53         if (files == null) {
  54             return;
  55         }
  56
  57         for (var file : files) {
  58             try {
  59                 Files.delete(file.toPath());
  60             } catch (IOException e) {
  61                 logger.error("Failed to delete sender key file {}: {}", file, e.getMessage());
  62             }
  63         }
  64         try {
  65             Files.delete(senderKeysPath.toPath());
  66         } catch (IOException e) {
  67             logger.error("Failed to delete sender keys directory {}: {}", senderKeysPath, e.getMessage());
  68         }
  69     }
  70
  71     final static Pattern senderKeyFileNamePattern = Pattern.compile("(\\d+)_(\\d+)_([\\da-z\\-]+)");
  72
  73     private static List<Key> parseFileNames(final File[] files, final RecipientResolver resolver) {
  74         return Arrays.stream(files)
  75                 .map(f -> senderKeyFileNamePattern.matcher(f.getName()))
  76                 .filter(Matcher::matches)
  77                 .map(matcher -> {
  78                     final var recipientId = resolver.resolveRecipient(Long.parseLong(matcher.group(1)));
  79                     if (recipientId == null) {
  80                         return null;
  81                     }
  82                     return new Key(recipientId, Integer.parseInt(matcher.group(2)), UUID.fromString(matcher.group(3)));
  83                 })
  84                 .filter(Objects::nonNull)
  85                 .toList();
  86     }
  87
  88     private static File getSenderKeyFile(Key key, final File senderKeysPath) {
  89         return new File(senderKeysPath,
  90                 key.recipientId().id() + "_" + key.deviceId() + "_" + key.distributionId().toString());
  91     }
  92
  93     private static SenderKeyRecord loadSenderKeyLocked(final Key key, final File senderKeysPath) {
  94         final var file = getSenderKeyFile(key, senderKeysPath);
  95         if (!file.exists()) {
  96             return null;
  97         }
  98         try (var inputStream = new FileInputStream(file)) {
  99             return new SenderKeyRecord(inputStream.readAllBytes());
 100         } catch (IOException | InvalidMessageException e) {
 101             logger.warn("Failed to load sender key, resetting sender key: {}", e.getMessage());
 102             return null;
 103         }
 104     }
 105
 106     record Key(RecipientId recipientId, int deviceId, UUID distributionId) {}
 107 }