store reactions in database

src/main/java/eu/siacs/conversations/xml/Namespace.java

@@ -70,6 +70,7 @@ public final class Namespace {
     public static final String MUC = "http://jabber.org/protocol/muc";
     public static final String MUC_USER = MUC + "#user";
     public static final String NICK = "http://jabber.org/protocol/nick";
+    public static final String REACTIONS = "urn:xmpp:reactions:0";
     public static final String OCCUPANT_ID = "urn:xmpp:occupant-id:0";
     public static final String OMEMO_DTLS_SRTP_VERIFICATION =
             "http://gultsch.de/xmpp/drafts/omemo/dlts-srtp-verification";

src/main/java/im/conversations/android/database/ConversationsDatabase.java

@@ -38,11 +38,11 @@ import im.conversations.android.database.entity.DiscoIdentityEntity;
 import im.conversations.android.database.entity.DiscoItemEntity;
 import im.conversations.android.database.entity.MessageContentEntity;
 import im.conversations.android.database.entity.MessageEntity;
+import im.conversations.android.database.entity.MessageReactionEntity;
 import im.conversations.android.database.entity.MessageStateEntity;
 import im.conversations.android.database.entity.MessageVersionEntity;
 import im.conversations.android.database.entity.NickEntity;
 import im.conversations.android.database.entity.PresenceEntity;
-import im.conversations.android.database.entity.ReactionEntity;
 import im.conversations.android.database.entity.RosterItemEntity;
 import im.conversations.android.database.entity.RosterItemGroupEntity;
 
@@ -74,7 +74,7 @@ import im.conversations.android.database.entity.RosterItemGroupEntity;
             MessageVersionEntity.class,
             NickEntity.class,
             PresenceEntity.class,
-            ReactionEntity.class,
+            MessageReactionEntity.class,
             RosterItemEntity.class,
             RosterItemGroupEntity.class
         },

src/main/java/im/conversations/android/database/dao/MessageDao.java

@@ -6,10 +6,12 @@ import androidx.room.Insert;
 import androidx.room.Query;
 import androidx.room.Transaction;
 import com.google.common.base.Preconditions;
+import com.google.common.collect.Collections2;
 import com.google.common.collect.Lists;
 import eu.siacs.conversations.xmpp.Jid;
 import im.conversations.android.database.entity.MessageContentEntity;
 import im.conversations.android.database.entity.MessageEntity;
+import im.conversations.android.database.entity.MessageReactionEntity;
 import im.conversations.android.database.entity.MessageStateEntity;
 import im.conversations.android.database.entity.MessageVersionEntity;
 import im.conversations.android.database.model.Account;
@@ -19,6 +21,8 @@ import im.conversations.android.database.model.MessageIdentifier;
 import im.conversations.android.database.model.MessageState;
 import im.conversations.android.database.model.Modification;
 import im.conversations.android.transformer.Transformation;
+import im.conversations.android.xmpp.model.reactions.Reactions;
+import im.conversations.android.xmpp.model.stanza.Message;
 import java.util.Collection;
 import java.util.List;
 import org.slf4j.Logger;
@@ -105,12 +109,12 @@ public abstract class MessageDao {
     // when found by stanzaId the stanzaId must either by verified or belonging to a stub
     // when found by messageId the from must either match (for corrections) or not be set (null) and
     // we only look up stubs
-    // TODO the from matcher should be in the outer condition
     @Query(
             "SELECT id,stanzaId,messageId,fromBare,latestVersion as version FROM message WHERE"
-                + " chatId=:chatId AND (fromBare=:fromBare OR fromBare=NULL) AND ((stanzaId !="
-                + " NULL AND stanzaId=:stanzaId AND (stanzaIdVerified=1 OR latestVersion=NULL)) OR"
-                + " (stanzaId = NULL AND messageId=:messageId AND latestVersion = NULL))")
+                + " chatId=:chatId AND (fromBare=:fromBare OR fromBare IS NULL) AND ((stanzaId IS"
+                + " NOT NULL AND stanzaId=:stanzaId AND (stanzaIdVerified=1 OR latestVersion IS"
+                + " NULL)) OR (stanzaId IS NULL AND messageId=:messageId AND latestVersion IS"
+                + " NULL))")
     abstract MessageIdentifier get(long chatId, Jid fromBare, String stanzaId, String messageId);
 
     public MessageIdentifier getOrCreateVersion(
@@ -200,14 +204,39 @@ public abstract class MessageDao {
     protected abstract void setLatestMessageId(
             final long messageEntityId, final long messageVersionId);
 
-    public Long getOrCreateStub(final Transformation transformation) {
-        // TODO look up where parentId matches messageId (or stanzaId for group chats)
-
-        // when creating stub either set from (correction) or don’t (other attachment)
-
-        return null;
+    public MessageIdentifier getOrCreateStub(
+            final ChatIdentifier chat, final Message.Type messageType, final String parentId) {
+        final MessageIdentifier existing;
+        if (messageType == Message.Type.GROUPCHAT) {
+            existing = getByStanzaId(chat.id, parentId);
+        } else {
+            existing = getByMessageId(chat.id, parentId);
+        }
+        if (existing != null) {
+            return existing;
+        }
+        final MessageEntity messageEntity;
+        if (messageType == Message.Type.GROUPCHAT) {
+            LOGGER.info("Create stub for stanza id {}", parentId);
+            messageEntity = MessageEntity.stubOfStanzaId(chat.id, parentId);
+        } else {
+            LOGGER.info("Create stub for message id {}", parentId);
+            messageEntity = MessageEntity.stubOfMessageId(chat.id, parentId);
+        }
+        final long messageEntityId = insert(messageEntity);
+        return new MessageIdentifier(messageEntityId, null, null, null, null);
     }
 
+    @Query(
+            "SELECT id,stanzaId,messageId,fromBare,latestVersion as version FROM message WHERE"
+                    + " chatId=:chatId AND messageId=:messageId")
+    protected abstract MessageIdentifier getByMessageId(final long chatId, final String messageId);
+
+    @Query(
+            "SELECT id,stanzaId,messageId,fromBare,latestVersion as version FROM message WHERE"
+                    + " chatId=:chatId AND stanzaId=:stanzaId")
+    protected abstract MessageIdentifier getByStanzaId(final long chatId, final String stanzaId);
+
     public void insertMessageContent(Long latestVersion, List<MessageContent> contents) {
         Preconditions.checkNotNull(
                 latestVersion, "Contents can only be inserted for a specific version");
@@ -245,4 +274,19 @@ public abstract class MessageDao {
 
     @Insert
     protected abstract void insert(MessageStateEntity messageStateEntity);
+
+    @Insert
+    protected abstract void insertReactions(Collection<MessageReactionEntity> reactionEntities);
+
+    public void insertReactions(
+            ChatIdentifier chat, Reactions reactions, Transformation transformation) {
+        final Message.Type messageType = transformation.type;
+        final MessageIdentifier messageIdentifier =
+                getOrCreateStub(chat, messageType, reactions.getId());
+        // TODO delete old reactions
+        insertReactions(
+                Collections2.transform(
+                        reactions.getReactions(),
+                        r -> MessageReactionEntity.of(messageIdentifier.id, r, transformation)));
+    }
 }

src/main/java/im/conversations/android/database/dao/RosterDao.java

@@ -50,6 +50,7 @@ public abstract class RosterDao {
             }
             final RosterItemEntity entity = RosterItemEntity.of(account.id, item);
             final long id = insert(entity);
+            // TODO groups
         }
         setRosterVersion(account.id, version);
     }

src/main/java/im/conversations/android/database/entity/MessageEntity.java

@@ -81,4 +81,18 @@ public class MessageEntity {
         entity.stanzaIdVerified = false;
         return entity;
     }
+
+    public static MessageEntity stubOfStanzaId(final long chatId, String stanzaId) {
+        final var entity = new MessageEntity();
+        entity.stanzaIdVerified = false;
+        entity.stanzaId = stanzaId;
+        return entity;
+    }
+
+    public static MessageEntity stubOfMessageId(final long chatId, String messageId) {
+        final var entity = new MessageEntity();
+        entity.stanzaIdVerified = false;
+        entity.messageId = messageId;
+        return entity;
+    }
 }

src/main/java/im/conversations/android/database/entity/MessageReactionEntity.java

@@ -5,6 +5,8 @@ import androidx.room.Entity;
 import androidx.room.ForeignKey;
 import androidx.room.Index;
 import androidx.room.PrimaryKey;
+import eu.siacs.conversations.xmpp.Jid;
+import im.conversations.android.transformer.Transformation;
 import java.time.Instant;
 
 @Entity(
@@ -16,7 +18,7 @@ import java.time.Instant;
                         childColumns = {"messageEntityId"},
                         onDelete = ForeignKey.CASCADE),
         indices = {@Index(value = "messageEntityId")})
-public class ReactionEntity {
+public class MessageReactionEntity {
 
     @PrimaryKey(autoGenerate = true)
     public Long id;
@@ -25,11 +27,25 @@ public class ReactionEntity {
 
     public String stanzaId;
     public String messageId;
-    public String reactionBy;
+    public Jid reactionBy;
     public String reactionByResource;
     public String occupantId;
 
     public Instant receivedAt;
 
     public String reaction;
+
+    public static MessageReactionEntity of(
+            long messageEntityId, final String reaction, final Transformation transformation) {
+        final var entity = new MessageReactionEntity();
+        entity.messageEntityId = messageEntityId;
+        entity.reaction = reaction;
+        entity.stanzaId = transformation.stanzaId;
+        entity.messageId = transformation.messageId;
+        entity.reactionBy = transformation.fromBare();
+        entity.reactionByResource = transformation.fromResource();
+        entity.occupantId = transformation.occupantId;
+        entity.receivedAt = transformation.receivedAt;
+        return entity;
+    }
 }

src/main/java/im/conversations/android/transformer/Transformation.java

@@ -16,6 +16,7 @@ import im.conversations.android.xmpp.model.jabber.Thread;
 import im.conversations.android.xmpp.model.markers.Displayed;
 import im.conversations.android.xmpp.model.muc.user.MultiUserChat;
 import im.conversations.android.xmpp.model.oob.OutOfBandData;
+import im.conversations.android.xmpp.model.reactions.Reactions;
 import im.conversations.android.xmpp.model.stanza.Message;
 import java.time.Instant;
 import java.util.Arrays;
@@ -34,7 +35,8 @@ public class Transformation {
                     DeliveryReceipt.class,
                     MultiUserChat.class,
                     Displayed.class,
-                    Replace.class);
+                    Replace.class,
+                    Reactions.class);
 
     public final Instant receivedAt;
     public final Jid to;

src/main/java/im/conversations/android/transformer/Transformer.java

@@ -18,6 +18,7 @@ import im.conversations.android.xmpp.model.jabber.Body;
 import im.conversations.android.xmpp.model.markers.Displayed;
 import im.conversations.android.xmpp.model.muc.user.MultiUserChat;
 import im.conversations.android.xmpp.model.oob.OutOfBandData;
+import im.conversations.android.xmpp.model.reactions.Reactions;
 import im.conversations.android.xmpp.model.stanza.Message;
 import java.util.Arrays;
 import java.util.Collection;
@@ -70,11 +71,16 @@ public class Transformer {
             return false;
         }
         final Replace messageCorrection = transformation.getExtension(Replace.class);
+        final Reactions reactions = transformation.getExtension(Reactions.class);
         final List<MessageContent> contents = parseContent(transformation);
 
         final boolean identifiableSender =
                 Arrays.asList(Message.Type.NORMAL, Message.Type.CHAT).contains(messageType)
                         || Objects.nonNull(transformation.occupantId);
+        final boolean isReaction =
+                Objects.nonNull(reactions)
+                        && Objects.nonNull(reactions.getId())
+                        && identifiableSender;
         final boolean isMessageCorrection =
                 Objects.nonNull(messageCorrection)
                         && messageCorrection.getId() != null
@@ -83,7 +89,9 @@ public class Transformer {
         if (contents.isEmpty()) {
             LOGGER.info("Received message from {} w/o contents", transformation.from);
             transformMessageState(chat, transformation);
-            // TODO apply reactions
+            if (isReaction) {
+                database.messageDao().insertReactions(chat, reactions, transformation);
+            }
         } else {
             final MessageIdentifier messageIdentifier;
             try {

src/main/java/im/conversations/android/xmpp/model/reactions/Reaction.java

@@ -0,0 +1,12 @@
+package im.conversations.android.xmpp.model.reactions;
+
+import im.conversations.android.annotation.XmlElement;
+import im.conversations.android.xmpp.model.Extension;
+
+@XmlElement
+public class Reaction extends Extension {
+
+    public Reaction() {
+        super(Reaction.class);
+    }
+}

src/main/java/im/conversations/android/xmpp/model/reactions/Reactions.java

@@ -0,0 +1,26 @@
+package im.conversations.android.xmpp.model.reactions;
+
+import com.google.common.base.Strings;
+import com.google.common.collect.Collections2;
+import im.conversations.android.annotation.XmlElement;
+import im.conversations.android.xmpp.model.Extension;
+import java.util.Collection;
+import java.util.Objects;
+
+@XmlElement
+public class Reactions extends Extension {
+
+    public Reactions() {
+        super(Reactions.class);
+    }
+
+    public Collection<String> getReactions() {
+        return Collections2.filter(
+                Collections2.transform(getExtensions(Reaction.class), Reaction::getContent),
+                r -> Objects.nonNull(Strings.nullToEmpty(r)));
+    }
+
+    public String getId() {
+        return this.getAttribute("id");
+    }
+}

src/main/java/im/conversations/android/xmpp/model/reactions/package-info.java

@@ -0,0 +1,5 @@
+@XmlPackage(namespace = Namespace.REACTIONS)
+package im.conversations.android.xmpp.model.reactions;
+
+import eu.siacs.conversations.xml.Namespace;
+import im.conversations.android.annotation.XmlPackage;