Extract lib module

[signal-cli] / src / main / java / org / asamk / signal / manager / helper / GroupHelper.java

diff --git a/src/main/java/org/asamk/signal/manager/helper/GroupHelper.java b/src/main/java/org/asamk/signal/manager/helper/GroupHelper.java
deleted file mode 100644 (file)
index 334cacd..0000000
--- a/src/main/java/org/asamk/signal/manager/helper/GroupHelper.java
+++ /dev/null
@@ -1,122 +0,0 @@
-package org.asamk.signal.manager.helper;
-
-import com.google.protobuf.InvalidProtocolBufferException;
-
-import org.signal.storageservice.protos.groups.GroupChange;
-import org.signal.storageservice.protos.groups.Member;
-import org.signal.storageservice.protos.groups.local.DecryptedGroup;
-import org.signal.storageservice.protos.groups.local.DecryptedGroupChange;
-import org.signal.zkgroup.VerificationFailedException;
-import org.signal.zkgroup.groups.GroupMasterKey;
-import org.signal.zkgroup.groups.GroupSecretParams;
-import org.signal.zkgroup.profiles.ProfileKeyCredential;
-import org.whispersystems.libsignal.util.guava.Optional;
-import org.whispersystems.signalservice.api.groupsv2.DecryptedGroupUtil;
-import org.whispersystems.signalservice.api.groupsv2.GroupCandidate;
-import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
-import org.whispersystems.signalservice.api.groupsv2.InvalidGroupStateException;
-import org.whispersystems.signalservice.api.groupsv2.NotAbleToApplyGroupV2ChangeException;
-import org.whispersystems.signalservice.api.push.SignalServiceAddress;
-
-import java.util.Collection;
-import java.util.Set;
-import java.util.stream.Collectors;
-
-public class GroupHelper {
-
-    private final ProfileKeyCredentialProvider profileKeyCredentialProvider;
-
-    private final ProfileProvider profileProvider;
-
-    private final SelfAddressProvider selfAddressProvider;
-
-    private final GroupsV2Operations groupsV2Operations;
-
-    public GroupHelper(
-            final ProfileKeyCredentialProvider profileKeyCredentialProvider,
-            final ProfileProvider profileProvider,
-            final SelfAddressProvider selfAddressProvider,
-            final GroupsV2Operations groupsV2Operations
-    ) {
-        this.profileKeyCredentialProvider = profileKeyCredentialProvider;
-        this.profileProvider = profileProvider;
-        this.selfAddressProvider = selfAddressProvider;
-        this.groupsV2Operations = groupsV2Operations;
-    }
-
-    public GroupsV2Operations.NewGroup createGroupV2(
-            String name, Collection<SignalServiceAddress> members, byte[] avatar
-    ) {
-        final ProfileKeyCredential profileKeyCredential = profileKeyCredentialProvider.getProfileKeyCredential(
-                selfAddressProvider.getSelfAddress());
-        if (profileKeyCredential == null) {
-            System.err.println("Cannot create a V2 group as self does not have a versioned profile");
-            return null;
-        }
-
-        final int noUuidCapability = members.stream()
-                .filter(address -> !address.getUuid().isPresent())
-                .collect(Collectors.toUnmodifiableSet())
-                .size();
-        if (noUuidCapability > 0) {
-            System.err.println("Cannot create a V2 group as " + noUuidCapability + " members don't have a UUID.");
-            return null;
-        }
-
-        final int noGv2Capability = members.stream()
-                .map(profileProvider::getProfile)
-                .filter(profile -> !profile.getCapabilities().gv2)
-                .collect(Collectors.toUnmodifiableSet())
-                .size();
-        if (noGv2Capability > 0) {
-            System.err.println("Cannot create a V2 group as " + noGv2Capability + " members don't support Groups V2.");
-            return null;
-        }
-
-        GroupCandidate self = new GroupCandidate(selfAddressProvider.getSelfAddress().getUuid().orNull(),
-                Optional.fromNullable(profileKeyCredential));
-        Set<GroupCandidate> candidates = members.stream()
-                .map(member -> new GroupCandidate(member.getUuid().get(),
-                        Optional.fromNullable(profileKeyCredentialProvider.getProfileKeyCredential(member))))
-                .collect(Collectors.toSet());
-
-        final GroupSecretParams groupSecretParams = GroupSecretParams.generate();
-        return groupsV2Operations.createNewGroup(groupSecretParams,
-                name,
-                Optional.fromNullable(avatar),
-                self,
-                candidates,
-                Member.Role.DEFAULT,
-                0);
-    }
-
-    public DecryptedGroup getUpdatedDecryptedGroup(
-            DecryptedGroup group, byte[] signedGroupChange, GroupMasterKey groupMasterKey
-    ) {
-        try {
-            final DecryptedGroupChange decryptedGroupChange = getDecryptedGroupChange(signedGroupChange,
-                    groupMasterKey);
-            if (decryptedGroupChange == null) {
-                return null;
-            }
-            return DecryptedGroupUtil.apply(group, decryptedGroupChange);
-        } catch (NotAbleToApplyGroupV2ChangeException e) {
-            return null;
-        }
-    }
-
-    private DecryptedGroupChange getDecryptedGroupChange(byte[] signedGroupChange, GroupMasterKey groupMasterKey) {
-        if (signedGroupChange != null) {
-            GroupsV2Operations.GroupOperations groupOperations = groupsV2Operations.forGroup(GroupSecretParams.deriveFromMasterKey(
-                    groupMasterKey));
-
-            try {
-                return groupOperations.decryptChange(GroupChange.parseFrom(signedGroupChange), true).orNull();
-            } catch (VerificationFailedException | InvalidGroupStateException | InvalidProtocolBufferException e) {
-                return null;
-            }
-        }
-
-        return null;
-    }
-}