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ConversationGroupViewModel.java
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ConversationGroupViewModel.java
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package org.thoughtcrime.securesms.conversation;
import android.app.Application;
import android.content.Context;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.WorkerThread;
import androidx.fragment.app.FragmentManager;
import androidx.lifecycle.LiveData;
import androidx.lifecycle.MutableLiveData;
import androidx.lifecycle.Transformations;
import androidx.lifecycle.ViewModel;
import androidx.lifecycle.ViewModelProvider;
import com.annimon.stream.Stream;
import org.signal.core.util.concurrent.SignalExecutors;
import org.thoughtcrime.securesms.database.DatabaseFactory;
import org.thoughtcrime.securesms.database.GroupDatabase;
import org.thoughtcrime.securesms.database.GroupDatabase.GroupRecord;
import org.thoughtcrime.securesms.dependencies.ApplicationDependencies;
import org.thoughtcrime.securesms.groups.GroupChangeBusyException;
import org.thoughtcrime.securesms.groups.GroupChangeFailedException;
import org.thoughtcrime.securesms.groups.GroupId;
import org.thoughtcrime.securesms.groups.GroupManager;
import org.thoughtcrime.securesms.groups.GroupsV1MigrationUtil;
import org.thoughtcrime.securesms.groups.ui.GroupChangeFailureReason;
import org.thoughtcrime.securesms.groups.ui.invitesandrequests.invite.GroupLinkInviteFriendsBottomSheetDialogFragment;
import org.thoughtcrime.securesms.profiles.spoofing.ReviewRecipient;
import org.thoughtcrime.securesms.profiles.spoofing.ReviewUtil;
import org.thoughtcrime.securesms.recipients.Recipient;
import org.thoughtcrime.securesms.recipients.RecipientId;
import org.thoughtcrime.securesms.util.AsynchronousCallback;
import org.thoughtcrime.securesms.util.FeatureFlags;
import org.thoughtcrime.securesms.util.concurrent.SimpleTask;
import org.thoughtcrime.securesms.util.livedata.LiveDataUtil;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.TimeUnit;
final class ConversationGroupViewModel extends ViewModel {
private static final long GV1_MIGRATION_REMINDER_INTERVAL = TimeUnit.DAYS.toMillis(1);
private final MutableLiveData<Recipient> liveRecipient;
private final LiveData<GroupActiveState> groupActiveState;
private final LiveData<GroupDatabase.MemberLevel> selfMembershipLevel;
private final LiveData<Integer> actionableRequestingMembers;
private final LiveData<ReviewState> reviewState;
private final LiveData<List<RecipientId>> gv1MigrationSuggestions;
private final LiveData<Boolean> gv1MigrationReminder;
private boolean firstTimeInviteFriendsTriggered;
private ConversationGroupViewModel() {
this.liveRecipient = new MutableLiveData<>();
LiveData<GroupRecord> groupRecord = LiveDataUtil.mapAsync(liveRecipient, ConversationGroupViewModel::getGroupRecordForRecipient);
LiveData<List<Recipient>> duplicates = LiveDataUtil.mapAsync(groupRecord, record -> {
if (record != null && record.isV2Group()) {
return Stream.of(ReviewUtil.getDuplicatedRecipients(record.getId().requireV2()))
.map(ReviewRecipient::getRecipient)
.toList();
} else {
return Collections.emptyList();
}
});
this.groupActiveState = Transformations.distinctUntilChanged(Transformations.map(groupRecord, ConversationGroupViewModel::mapToGroupActiveState));
this.selfMembershipLevel = Transformations.distinctUntilChanged(Transformations.map(groupRecord, ConversationGroupViewModel::mapToSelfMembershipLevel));
this.actionableRequestingMembers = Transformations.distinctUntilChanged(Transformations.map(groupRecord, ConversationGroupViewModel::mapToActionableRequestingMemberCount));
this.gv1MigrationSuggestions = Transformations.distinctUntilChanged(LiveDataUtil.mapAsync(groupRecord, ConversationGroupViewModel::mapToGroupV1MigrationSuggestions));
this.gv1MigrationReminder = Transformations.distinctUntilChanged(LiveDataUtil.mapAsync(groupRecord, ConversationGroupViewModel::mapToGroupV1MigrationReminder));
this.reviewState = LiveDataUtil.combineLatest(groupRecord,
duplicates,
(record, dups) -> dups.isEmpty()
? ReviewState.EMPTY
: new ReviewState(record.getId().requireV2(), dups.get(0), dups.size()));
}
void onRecipientChange(Recipient recipient) {
liveRecipient.setValue(recipient);
}
void onSuggestedMembersBannerDismissed(@NonNull GroupId groupId, @NonNull List<RecipientId> suggestions) {
SignalExecutors.BOUNDED.execute(() -> {
if (groupId.isV2()) {
DatabaseFactory.getGroupDatabase(ApplicationDependencies.getApplication()).removeUnmigratedV1Members(groupId.requireV2(), suggestions);
liveRecipient.postValue(liveRecipient.getValue());
}
});
}
void onMigrationInitiationReminderBannerDismissed(@NonNull RecipientId recipientId) {
SignalExecutors.BOUNDED.execute(() -> {
DatabaseFactory.getRecipientDatabase(ApplicationDependencies.getApplication()).markGroupsV1MigrationReminderSeen(recipientId, System.currentTimeMillis());
liveRecipient.postValue(liveRecipient.getValue());
});
}
/**
* The number of pending group join requests that can be actioned by this client.
*/
LiveData<Integer> getActionableRequestingMembers() {
return actionableRequestingMembers;
}
LiveData<GroupActiveState> getGroupActiveState() {
return groupActiveState;
}
LiveData<GroupDatabase.MemberLevel> getSelfMemberLevel() {
return selfMembershipLevel;
}
public LiveData<ReviewState> getReviewState() {
return reviewState;
}
@NonNull LiveData<List<RecipientId>> getGroupV1MigrationSuggestions() {
return gv1MigrationSuggestions;
}
@NonNull LiveData<Boolean> getShowGroupsV1MigrationBanner() {
return gv1MigrationReminder;
}
private static @Nullable GroupRecord getGroupRecordForRecipient(@Nullable Recipient recipient) {
if (recipient != null && recipient.isGroup()) {
Application context = ApplicationDependencies.getApplication();
GroupDatabase groupDatabase = DatabaseFactory.getGroupDatabase(context);
return groupDatabase.getGroup(recipient.getId()).orNull();
} else {
return null;
}
}
private static int mapToActionableRequestingMemberCount(@Nullable GroupRecord record) {
if (record != null &&
record.isV2Group() &&
record.memberLevel(Recipient.self()) == GroupDatabase.MemberLevel.ADMINISTRATOR)
{
return record.requireV2GroupProperties()
.getDecryptedGroup()
.getRequestingMembersCount();
} else {
return 0;
}
}
private static GroupActiveState mapToGroupActiveState(@Nullable GroupRecord record) {
if (record == null) {
return null;
}
return new GroupActiveState(record.isActive(), record.isV2Group());
}
private static GroupDatabase.MemberLevel mapToSelfMembershipLevel(@Nullable GroupRecord record) {
if (record == null) {
return null;
}
return record.memberLevel(Recipient.self());
}
@WorkerThread
private static List<RecipientId> mapToGroupV1MigrationSuggestions(@Nullable GroupRecord record) {
if (record == null) {
return Collections.emptyList();
}
if (!record.isV2Group()) {
return Collections.emptyList();
}
if (!record.isActive() || record.isPendingMember(Recipient.self())) {
return Collections.emptyList();
}
return Stream.of(record.getUnmigratedV1Members())
.filterNot(m -> record.getMembers().contains(m))
.map(Recipient::resolved)
.filter(GroupsV1MigrationUtil::isAutoMigratable)
.map(Recipient::getId)
.toList();
}
@WorkerThread
private static boolean mapToGroupV1MigrationReminder(@Nullable GroupRecord record) {
if (record == null ||
!record.isV1Group() ||
!record.isActive() ||
!FeatureFlags.groupsV1ManualMigration() ||
FeatureFlags.groupsV1ForcedMigration() ||
Recipient.self().getGroupsV1MigrationCapability() != Recipient.Capability.SUPPORTED ||
!Recipient.resolved(record.getRecipientId()).isProfileSharing())
{
return false;
}
boolean canAutoMigrate = Stream.of(Recipient.resolvedList(record.getMembers()))
.allMatch(GroupsV1MigrationUtil::isAutoMigratable);
if (canAutoMigrate) {
return false;
}
Context context = ApplicationDependencies.getApplication();
long lastReminderTime = DatabaseFactory.getRecipientDatabase(context).getGroupsV1MigrationReminderLastSeen(record.getRecipientId());
return System.currentTimeMillis() - lastReminderTime > GV1_MIGRATION_REMINDER_INTERVAL;
}
public static void onCancelJoinRequest(@NonNull Recipient recipient,
@NonNull AsynchronousCallback.WorkerThread<Void, GroupChangeFailureReason> callback)
{
SignalExecutors.UNBOUNDED.execute(() -> {
if (!recipient.isPushV2Group()) {
throw new AssertionError();
}
try {
GroupManager.cancelJoinRequest(ApplicationDependencies.getApplication(), recipient.getGroupId().get().requireV2());
callback.onComplete(null);
} catch (GroupChangeFailedException | GroupChangeBusyException | IOException e) {
callback.onError(GroupChangeFailureReason.fromException(e));
}
});
}
void inviteFriendsOneTimeIfJustSelfInGroup(@NonNull FragmentManager supportFragmentManager, @NonNull GroupId.V2 groupId) {
if (firstTimeInviteFriendsTriggered) {
return;
}
firstTimeInviteFriendsTriggered = true;
SimpleTask.run(() -> DatabaseFactory.getGroupDatabase(ApplicationDependencies.getApplication())
.requireGroup(groupId)
.getMembers().equals(Collections.singletonList(Recipient.self().getId())),
justSelf -> {
if (justSelf) {
inviteFriends(supportFragmentManager, groupId);
}
}
);
}
void inviteFriends(@NonNull FragmentManager supportFragmentManager, @NonNull GroupId.V2 groupId) {
GroupLinkInviteFriendsBottomSheetDialogFragment.show(supportFragmentManager, groupId);
}
static final class ReviewState {
private static final ReviewState EMPTY = new ReviewState(null, Recipient.UNKNOWN, 0);
private final GroupId.V2 groupId;
private final Recipient recipient;
private final int count;
ReviewState(@Nullable GroupId.V2 groupId, @NonNull Recipient recipient, int count) {
this.groupId = groupId;
this.recipient = recipient;
this.count = count;
}
public @Nullable GroupId.V2 getGroupId() {
return groupId;
}
public @NonNull Recipient getRecipient() {
return recipient;
}
public int getCount() {
return count;
}
}
static final class GroupActiveState {
private final boolean isActive;
private final boolean isActiveV2;
public GroupActiveState(boolean isActive, boolean isV2) {
this.isActive = isActive;
this.isActiveV2 = isActive && isV2;
}
public boolean isActiveGroup() {
return isActive;
}
public boolean isActiveV2Group() {
return isActiveV2;
}
}
static class Factory extends ViewModelProvider.NewInstanceFactory {
@Override
public @NonNull <T extends ViewModel> T create(@NonNull Class<T> modelClass) {
//noinspection ConstantConditions
return modelClass.cast(new ConversationGroupViewModel());
}
}
}