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

   1 package org.asamk.signal.manager.storage.sessions;
   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.asamk.signal.manager.util.IOUtils;
   8 import org.signal.libsignal.protocol.state.SessionRecord;
   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.Collection;
  18 import java.util.List;
  19 import java.util.Objects;
  20 import java.util.regex.Matcher;
  21 import java.util.regex.Pattern;
  22
  23 public class LegacySessionStore {
  24
  25     private final static Logger logger = LoggerFactory.getLogger(LegacySessionStore.class);
  26
  27     public static void migrate(
  28             final File sessionsPath,
  29             final RecipientResolver resolver,
  30             final RecipientAddressResolver addressResolver,
  31             final SessionStore sessionStore
  32     ) {
  33         final var keys = getKeysLocked(sessionsPath, resolver);
  34         final var sessions = keys.stream().map(key -> {
  35             final var record = loadSessionLocked(key, sessionsPath);
  36             final var serviceId = addressResolver.resolveRecipientAddress(key.recipientId).serviceId();
  37             if (record == null || serviceId.isEmpty()) {
  38                 return null;
  39             }
  40             return new Pair<>(new SessionStore.Key(serviceId.get(), key.deviceId()), record);
  41         }).filter(Objects::nonNull).toList();
  42         sessionStore.addLegacySessions(sessions);
  43         deleteAllSessions(sessionsPath);
  44     }
  45
  46     private static void deleteAllSessions(File sessionsPath) {
  47         final var files = sessionsPath.listFiles();
  48         if (files == null) {
  49             return;
  50         }
  51
  52         for (var file : files) {
  53             try {
  54                 Files.delete(file.toPath());
  55             } catch (IOException e) {
  56                 logger.error("Failed to delete session file {}: {}", file, e.getMessage());
  57             }
  58         }
  59         try {
  60             Files.delete(sessionsPath.toPath());
  61         } catch (IOException e) {
  62             logger.error("Failed to delete session directory {}: {}", sessionsPath, e.getMessage());
  63         }
  64     }
  65
  66     private static Collection<Key> getKeysLocked(File sessionsPath, final RecipientResolver resolver) {
  67         final var files = sessionsPath.listFiles();
  68         if (files == null) {
  69             return List.of();
  70         }
  71         return parseFileNames(files, resolver);
  72     }
  73
  74     static final Pattern sessionFileNamePattern = Pattern.compile("(\\d+)_(\\d+)");
  75
  76     private static List<Key> parseFileNames(final File[] files, final RecipientResolver resolver) {
  77         return Arrays.stream(files)
  78                 .map(f -> sessionFileNamePattern.matcher(f.getName()))
  79                 .filter(Matcher::matches)
  80                 .map(matcher -> {
  81                     final var recipientId = resolver.resolveRecipient(Long.parseLong(matcher.group(1)));
  82                     if (recipientId == null) {
  83                         return null;
  84                     }
  85                     return new Key(recipientId, Integer.parseInt(matcher.group(2)));
  86                 })
  87                 .filter(Objects::nonNull)
  88                 .toList();
  89     }
  90
  91     private static File getSessionFile(Key key, final File sessionsPath) {
  92         try {
  93             IOUtils.createPrivateDirectories(sessionsPath);
  94         } catch (IOException e) {
  95             throw new AssertionError("Failed to create sessions path", e);
  96         }
  97         return new File(sessionsPath, key.recipientId().id() + "_" + key.deviceId());
  98     }
  99
 100     private static SessionRecord loadSessionLocked(final Key key, final File sessionsPath) {
 101         final var file = getSessionFile(key, sessionsPath);
 102         if (!file.exists()) {
 103             return null;
 104         }
 105         try (var inputStream = new FileInputStream(file)) {
 106             return new SessionRecord(inputStream.readAllBytes());
 107         } catch (Exception e) {
 108             logger.warn("Failed to load session, resetting session: {}", e.getMessage());
 109             return null;
 110         }
 111     }
 112
 113     record Key(RecipientId recipientId, int deviceId) {}
 114 }