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@ -27,204 +27,204 @@ import network.loki.messenger.R;
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import static org.session.libsignal.service.internal.push.SignalServiceProtos.GroupContext;
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public class GroupUtil {
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private static final String ENCODED_CLOSED_GROUP_PREFIX = "__textsecure_group__!";
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private static final String ENCODED_MMS_GROUP_PREFIX = "__signal_mms_group__!";
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private static final String ENCODED_OPEN_GROUP_PREFIX = "__loki_public_chat_group__!";
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private static final String ENCODED_RSS_FEED_GROUP_PREFIX = "__loki_rss_feed_group__!";
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private static final String TAG = GroupUtil.class.getSimpleName();
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public static String getEncodedId(SignalServiceGroup group) {
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byte[] groupId = group.getGroupId();
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if (group.getGroupType() == SignalServiceGroup.GroupType.PUBLIC_CHAT) {
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return getEncodedOpenGroupId(groupId);
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} else if (group.getGroupType() == SignalServiceGroup.GroupType.RSS_FEED) {
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return getEncodedRSSFeedId(groupId);
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}
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return getEncodedId(groupId, false);
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}
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public static String getEncodedId(byte[] groupId, boolean mms) {
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return (mms ? ENCODED_MMS_GROUP_PREFIX : ENCODED_CLOSED_GROUP_PREFIX) + Hex.toStringCondensed(groupId);
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}
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public static String getEncodedOpenGroupId(byte[] groupId) {
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return ENCODED_OPEN_GROUP_PREFIX + Hex.toStringCondensed(groupId);
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}
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public static String getEncodedRSSFeedId(byte[] groupId) {
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return ENCODED_RSS_FEED_GROUP_PREFIX + Hex.toStringCondensed(groupId);
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}
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public static byte[] getDecodedId(String groupId) throws IOException {
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if (!isEncodedGroup(groupId)) {
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throw new IOException("Invalid encoding");
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}
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return Hex.fromStringCondensed(groupId.split("!", 2)[1]);
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}
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public static String getDecodedStringId(String groupId) throws IOException {
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byte[] id = getDecodedId(groupId);
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return new String(id);
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}
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public static boolean isEncodedGroup(@NonNull String groupId) {
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return groupId.startsWith(ENCODED_CLOSED_GROUP_PREFIX) || groupId.startsWith(ENCODED_MMS_GROUP_PREFIX) || groupId.startsWith(ENCODED_OPEN_GROUP_PREFIX) || groupId.startsWith(ENCODED_RSS_FEED_GROUP_PREFIX);
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}
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public static boolean isMmsGroup(@NonNull String groupId) {
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return groupId.startsWith(ENCODED_MMS_GROUP_PREFIX);
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}
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public static boolean isOpenGroup(@NonNull String groupId) {
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return groupId.startsWith(ENCODED_OPEN_GROUP_PREFIX);
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}
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public static boolean isRSSFeed(@NonNull String groupId) {
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return groupId.startsWith(ENCODED_RSS_FEED_GROUP_PREFIX);
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}
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public static boolean isClosedGroup(@NonNull String groupId) {
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return groupId.startsWith(ENCODED_CLOSED_GROUP_PREFIX);
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}
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@WorkerThread
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public static Optional<OutgoingGroupMediaMessage> createGroupLeaveMessage(@NonNull Context context, @NonNull Recipient groupRecipient) {
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String encodedGroupId = groupRecipient.getAddress().toGroupString();
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GroupDatabase groupDatabase = DatabaseFactory.getGroupDatabase(context);
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if (!groupDatabase.isActive(encodedGroupId)) {
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Log.w(TAG, "Group has already been left.");
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return Optional.absent();
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}
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ByteString decodedGroupId;
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try {
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decodedGroupId = ByteString.copyFrom(getDecodedId(encodedGroupId));
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} catch (IOException e) {
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Log.w(TAG, "Failed to decode group ID.", e);
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return Optional.absent();
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}
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GroupContext groupContext = GroupContext.newBuilder()
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.setId(decodedGroupId)
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.setType(GroupContext.Type.QUIT)
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.build();
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return Optional.of(new OutgoingGroupMediaMessage(groupRecipient, groupContext, null, System.currentTimeMillis(), 0, null, Collections.emptyList(), Collections.emptyList()));
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}
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public static @NonNull GroupDescription getDescription(@NonNull Context context, @Nullable String encodedGroup) {
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if (encodedGroup == null) {
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return new GroupDescription(context, null);
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}
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try {
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GroupContext groupContext = GroupContext.parseFrom(Base64.decode(encodedGroup));
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return new GroupDescription(context, groupContext);
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} catch (IOException e) {
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Log.w(TAG, e);
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return new GroupDescription(context, null);
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}
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}
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public static class GroupDescription {
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@NonNull private final Context context;
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@Nullable private final GroupContext groupContext;
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private final List<Recipient> newMembers;
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private final List<Recipient> removedMembers;
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private boolean wasCurrentUserRemoved;
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public GroupDescription(@NonNull Context context, @Nullable GroupContext groupContext) {
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this.context = context.getApplicationContext();
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this.groupContext = groupContext;
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this.newMembers = new LinkedList<>();
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this.removedMembers = new LinkedList<>();
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this.wasCurrentUserRemoved = false;
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if (groupContext != null) {
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List<String> newMembers = groupContext.getNewMembersList();
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for (String member : newMembers) {
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this.newMembers.add(this.toRecipient(member));
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}
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List<String> removedMembers = groupContext.getRemovedMembersList();
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for (String member : removedMembers) {
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this.removedMembers.add(this.toRecipient(member));
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}
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// If we were the one that quit then we need to leave the group (only relevant for slave
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// devices in a multi device context)
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if (!removedMembers.isEmpty()) {
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String masterPublicKeyOrNull = TextSecurePreferences.getMasterHexEncodedPublicKey(context);
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String masterPublicKey = masterPublicKeyOrNull != null ? masterPublicKeyOrNull : TextSecurePreferences.getLocalNumber(context);
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wasCurrentUserRemoved = removedMembers.contains(masterPublicKey);
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}
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}
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}
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private Recipient toRecipient(String hexEncodedPublicKey) {
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Address address = Address.Companion.fromSerialized(hexEncodedPublicKey);
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return Recipient.from(context, address, false);
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}
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public String toString(Recipient sender) {
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if (wasCurrentUserRemoved) {
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return context.getString(R.string.GroupUtil_you_were_removed_from_group);
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}
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StringBuilder description = new StringBuilder();
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description.append(context.getString(R.string.MessageRecord_s_updated_group, sender.toShortString()));
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if (groupContext == null) {
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return description.toString();
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}
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String title = groupContext.getName();
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if (!newMembers.isEmpty()) {
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description.append("\n");
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description.append(context.getResources().getQuantityString(R.plurals.GroupUtil_joined_the_group,
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newMembers.size(), toString(newMembers)));
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}
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if (!removedMembers.isEmpty()) {
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description.append("\n");
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description.append(context.getResources().getQuantityString(R.plurals.GroupUtil_removed_from_the_group,
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removedMembers.size(), toString(removedMembers)));
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}
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if (title != null && !title.trim().isEmpty()) {
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String separator = (!newMembers.isEmpty() || !removedMembers.isEmpty()) ? " " : "\n";
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description.append(separator);
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description.append(context.getString(R.string.GroupUtil_group_name_is_now, title));
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}
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return description.toString();
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}
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public void addListener(RecipientModifiedListener listener) {
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if (!this.newMembers.isEmpty()) {
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for (Recipient member : this.newMembers) {
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member.addListener(listener);
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}
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}
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}
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private String toString(List<Recipient> recipients) {
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String result = "";
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for (int i=0;i<recipients.size();i++) {
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result += recipients.get(i).toShortString();
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if (i != recipients.size() -1 )
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result += ", ";
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}
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return result;
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}
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}
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// TODO: Remove this file
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// private static final String ENCODED_CLOSED_GROUP_PREFIX = "__textsecure_group__!";
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// private static final String ENCODED_MMS_GROUP_PREFIX = "__signal_mms_group__!";
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// private static final String ENCODED_OPEN_GROUP_PREFIX = "__loki_public_chat_group__!";
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// private static final String ENCODED_RSS_FEED_GROUP_PREFIX = "__loki_rss_feed_group__!";
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// private static final String TAG = GroupUtil.class.getSimpleName();
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//
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// public static String getEncodedId(SignalServiceGroup group) {
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// byte[] groupId = group.getGroupId();
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// if (group.getGroupType() == SignalServiceGroup.GroupType.PUBLIC_CHAT) {
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// return getEncodedOpenGroupId(groupId);
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// } else if (group.getGroupType() == SignalServiceGroup.GroupType.RSS_FEED) {
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// return getEncodedRSSFeedId(groupId);
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// }
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// return getEncodedId(groupId, false);
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// }
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//
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// public static String getEncodedId(byte[] groupId, boolean mms) {
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// return (mms ? ENCODED_MMS_GROUP_PREFIX : ENCODED_CLOSED_GROUP_PREFIX) + Hex.toStringCondensed(groupId);
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// }
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//
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// public static String getEncodedOpenGroupId(byte[] groupId) {
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// return ENCODED_OPEN_GROUP_PREFIX + Hex.toStringCondensed(groupId);
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// }
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//
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// public static String getEncodedRSSFeedId(byte[] groupId) {
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// return ENCODED_RSS_FEED_GROUP_PREFIX + Hex.toStringCondensed(groupId);
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// }
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//
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// public static byte[] getDecodedId(String groupId) throws IOException {
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// if (!isEncodedGroup(groupId)) {
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// throw new IOException("Invalid encoding");
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// }
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//
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// return Hex.fromStringCondensed(groupId.split("!", 2)[1]);
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// }
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//
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// public static String getDecodedStringId(String groupId) throws IOException {
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// byte[] id = getDecodedId(groupId);
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// return new String(id);
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// }
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//
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// public static boolean isEncodedGroup(@NonNull String groupId) {
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// return groupId.startsWith(ENCODED_CLOSED_GROUP_PREFIX) || groupId.startsWith(ENCODED_MMS_GROUP_PREFIX) || groupId.startsWith(ENCODED_OPEN_GROUP_PREFIX) || groupId.startsWith(ENCODED_RSS_FEED_GROUP_PREFIX);
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// }
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//
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// public static boolean isMmsGroup(@NonNull String groupId) {
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// return groupId.startsWith(ENCODED_MMS_GROUP_PREFIX);
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// }
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//
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// public static boolean isOpenGroup(@NonNull String groupId) {
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// return groupId.startsWith(ENCODED_OPEN_GROUP_PREFIX);
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// }
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//
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// public static boolean isRSSFeed(@NonNull String groupId) {
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// return groupId.startsWith(ENCODED_RSS_FEED_GROUP_PREFIX);
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// }
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//
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// public static boolean isClosedGroup(@NonNull String groupId) {
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// return groupId.startsWith(ENCODED_CLOSED_GROUP_PREFIX);
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// }
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//
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// @WorkerThread
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// public static Optional<OutgoingGroupMediaMessage> createGroupLeaveMessage(@NonNull Context context, @NonNull Recipient groupRecipient) {
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// String encodedGroupId = groupRecipient.getAddress().toGroupString();
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// GroupDatabase groupDatabase = DatabaseFactory.getGroupDatabase(context);
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//
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// if (!groupDatabase.isActive(encodedGroupId)) {
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// Log.w(TAG, "Group has already been left.");
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// return Optional.absent();
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// }
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//
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// ByteString decodedGroupId;
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// try {
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// decodedGroupId = ByteString.copyFrom(getDecodedId(encodedGroupId));
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// } catch (IOException e) {
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// Log.w(TAG, "Failed to decode group ID.", e);
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// return Optional.absent();
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// }
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//
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// GroupContext groupContext = GroupContext.newBuilder()
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// .setId(decodedGroupId)
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// .setType(GroupContext.Type.QUIT)
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// .build();
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//
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// return Optional.of(new OutgoingGroupMediaMessage(groupRecipient, groupContext, null, System.currentTimeMillis(), 0, null, Collections.emptyList(), Collections.emptyList()));
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// }
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//
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// public static @NonNull GroupDescription getDescription(@NonNull Context context, @Nullable String encodedGroup) {
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// if (encodedGroup == null) {
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// return new GroupDescription(context, null);
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// }
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//
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// try {
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// GroupContext groupContext = GroupContext.parseFrom(Base64.decode(encodedGroup));
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// return new GroupDescription(context, groupContext);
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// } catch (IOException e) {
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// Log.w(TAG, e);
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// return new GroupDescription(context, null);
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// }
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// }
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//
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// public static class GroupDescription {
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//
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// @NonNull private final Context context;
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// @Nullable private final GroupContext groupContext;
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// private final List<Recipient> newMembers;
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// private final List<Recipient> removedMembers;
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// private boolean wasCurrentUserRemoved;
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//
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// public GroupDescription(@NonNull Context context, @Nullable GroupContext groupContext) {
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// this.context = context.getApplicationContext();
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// this.groupContext = groupContext;
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//
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// this.newMembers = new LinkedList<>();
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// this.removedMembers = new LinkedList<>();
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// this.wasCurrentUserRemoved = false;
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//
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// if (groupContext != null) {
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// List<String> newMembers = groupContext.getNewMembersList();
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// for (String member : newMembers) {
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// this.newMembers.add(this.toRecipient(member));
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// }
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//
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// List<String> removedMembers = groupContext.getRemovedMembersList();
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// for (String member : removedMembers) {
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// this.removedMembers.add(this.toRecipient(member));
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// }
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//
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// // If we were the one that quit then we need to leave the group (only relevant for slave
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// // devices in a multi device context)
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// if (!removedMembers.isEmpty()) {
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// String masterPublicKeyOrNull = TextSecurePreferences.getMasterHexEncodedPublicKey(context);
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// String masterPublicKey = masterPublicKeyOrNull != null ? masterPublicKeyOrNull : TextSecurePreferences.getLocalNumber(context);
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// wasCurrentUserRemoved = removedMembers.contains(masterPublicKey);
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// }
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// }
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// }
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//
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// private Recipient toRecipient(String hexEncodedPublicKey) {
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// Address address = Address.Companion.fromSerialized(hexEncodedPublicKey);
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// return Recipient.from(context, address, false);
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// }
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//
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// public String toString(Recipient sender) {
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// if (wasCurrentUserRemoved) {
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// return context.getString(R.string.GroupUtil_you_were_removed_from_group);
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// }
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//
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// StringBuilder description = new StringBuilder();
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// description.append(context.getString(R.string.MessageRecord_s_updated_group, sender.toShortString()));
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//
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// if (groupContext == null) {
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// return description.toString();
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// }
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//
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// String title = groupContext.getName();
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//
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// if (!newMembers.isEmpty()) {
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// description.append("\n");
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// description.append(context.getResources().getQuantityString(R.plurals.GroupUtil_joined_the_group,
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// newMembers.size(), toString(newMembers)));
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// }
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//
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// if (!removedMembers.isEmpty()) {
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// description.append("\n");
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// description.append(context.getResources().getQuantityString(R.plurals.GroupUtil_removed_from_the_group,
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// removedMembers.size(), toString(removedMembers)));
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// }
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//
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// if (title != null && !title.trim().isEmpty()) {
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// String separator = (!newMembers.isEmpty() || !removedMembers.isEmpty()) ? " " : "\n";
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// description.append(separator);
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// description.append(context.getString(R.string.GroupUtil_group_name_is_now, title));
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// }
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//
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// return description.toString();
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// }
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//
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// public void addListener(RecipientModifiedListener listener) {
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// if (!this.newMembers.isEmpty()) {
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// for (Recipient member : this.newMembers) {
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// member.addListener(listener);
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// }
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// }
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// }
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//
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// private String toString(List<Recipient> recipients) {
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// String result = "";
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//
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// for (int i=0;i<recipients.size();i++) {
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// result += recipients.get(i).toShortString();
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//
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// if (i != recipients.size() -1 )
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// result += ", ";
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// }
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//
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// return result;
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// }
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// }
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}
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Ryan ZHAO
4 years ago