ActivityPub: deserialize activities with single context

3 files changed, 6 insertions, 4 deletions

diff --git a/src/main/java/com/juick/server/api/activity/model/Context.java b/src/main/java/com/juick/server/api/activity/model/Context.java
index 2ba4606e..1d3f238c 100644
--- a/src/main/java/com/juick/server/api/activity/model/Context.java
+++ b/src/main/java/com/juick/server/api/activity/model/Context.java
@@ -1,9 +1,6 @@
 package com.juick.server.api.activity.model;
 
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
-import com.fasterxml.jackson.annotation.JsonProperty;
-import com.fasterxml.jackson.annotation.JsonSubTypes;
-import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.*;
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 import com.juick.server.api.activity.helpers.LinkValueDeserializer;
 import com.juick.server.api.activity.model.activities.*;
@@ -68,6 +65,7 @@ public abstract class Context {
     }
 
     @JsonProperty("@context")
+    @JsonFormat(with = JsonFormat.Feature.ACCEPT_SINGLE_VALUE_AS_ARRAY)
     public List<Object> getContext() {
         return context;
     }
diff --git a/src/test/java/com/juick/server/tests/ServerTests.java b/src/test/java/com/juick/server/tests/ServerTests.java
index 322d4de7..a140e9f0 100644
--- a/src/test/java/com/juick/server/tests/ServerTests.java
+++ b/src/test/java/com/juick/server/tests/ServerTests.java
@@ -1705,6 +1705,9 @@ public class ServerTests {
         NodeInfo info = jsonMapper.readValue(IOUtils.toString(new ClassPathResource("xnodeinfo2.json").getURI(), StandardCharsets.UTF_8), NodeInfo.class);
         assertThat(info.getUsage().getUsers().getActiveHalfyear(), is(42));
         Like like = jsonMapper.readValue(IOUtils.toString(new ClassPathResource("like.json").getURI(), StandardCharsets.UTF_8), Like.class);
+        String undoPleromaStr = IOUtils.toString(new ClassPathResource("undo_pleroma.json").getURI(), StandardCharsets.UTF_8);
+        Undo undoPleroma = jsonMapper.readValue(undoPleromaStr, Undo.class);
+        String undoPleromaFollower = (String)((Map)undoPleroma.getObject()).get("object");
     }
     @Test
     public void activitySerialization() throws Exception {
diff --git a/src/test/resources/undo_pleroma.json b/src/test/resources/undo_pleroma.json
new file mode 100644
index 00000000..2ef67bc2
--- /dev/null
+++ b/src/test/resources/undo_pleroma.json
@@ -0,0 +1 @@
+{"@context":"https://www.w3.org/ns/activitystreams","id":"https://mastodon.social/users/chest_i_razym#follows/4510327/undo","type":"Undo","actor":"https://mastodon.social/users/chest_i_razym","object":{"id":"https://mastodon.social/1a4824f6-b5d0-415b-a7ef-62d7637d83c9","type":"Follow","actor":"https://mastodon.social/users/chest_i_razym","object":"https://juick.com/u/WP8"}}
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