Added handling for Group announced Create activities (#210)

refs [AP-608](https://linear.app/ghost/issue/AP-608/ghost-does-not-work-with-lemmy-or-wordpress)

Added handling for `Group` announced `Create` activities so that these activities
are recorded processed by the service. Activities are usually only announced as
part of Group federation

features/accept-follows.feature

@@ -1,7 +1,7 @@
 Feature: We automatically accept Follow requests
 
   Scenario: We can be followed
-    Given an Actor "Alice"
+    Given an Actor "Person(Alice)"
     Given a "Follow(Us)" Activity "F" by "Alice"
     When "Alice" sends "F" to the Inbox
     And "F" is in our Inbox
@@ -12,7 +12,7 @@ Feature: We automatically accept Follow requests
   Rule: We can be followed multiple times by the same actor, but we only record them once
 
     Example: An actor attempts to follow us multiple times
-        Given an Actor "Alice"
+        Given an Actor "Person(Alice)"
         And a "Follow(Us)" Activity "F1" by "Alice"
         And a "Follow(Us)" Activity "F2" by "Alice"
         When "Alice" sends "F1" to the Inbox

features/create-note.feature

@@ -24,8 +24,8 @@ Feature: Creating a note
         And "Note" has the content "<p>Hello<br />World</p>"
 
     Scenario: Created note is sent to followers
-        Given an Actor "Alice"
-        And an Actor "Bob"
+        Given an Actor "Person(Alice)"
+        And an Actor "Person(Bob)"
         And a "Follow(Us)" Activity "F1" by "Alice"
         And a "Follow(Us)" Activity "F2" by "Bob"
         And "Alice" sends "F1" to the Inbox

features/follow-account.feature

@@ -1,7 +1,7 @@
 Feature: Follow accounts from their handle
 
   Scenario: We can follow an account only once
-    Given an Actor "Alice"
+    Given an Actor "Person(Alice)"
     Given we follow "Alice"
     Then the request is accepted
     Given a "Accept(Follow(Alice))" Activity "A" by "Alice"

features/handle-announce.feature

@@ -2,7 +2,7 @@ Feature: Announce(Note)
   We want to handle Announce(Note) activities in the Inbox
 
   Scenario: We recieve a Announce(Note) activity from someone we follow
-    Given an Actor "Alice"
+    Given an Actor "Person(Alice)"
     Given we follow "Alice"
     Then the request is accepted
     Given a "Accept(Follow(Alice))" Activity "Accept" by "Alice"
@@ -14,7 +14,7 @@ Feature: Announce(Note)
     Then "A" is in our Inbox
 
   Scenario: We recieve a Announce(Note) activity from someone we don't follow
-    Given an Actor "Alice"
+    Given an Actor "Person(Alice)"
     Given a "Announce(Note)" Activity "A" by "Alice"
     When "Alice" sends "A" to the Inbox
     Then the request is accepted

features/handle-create-article.feature

@@ -2,7 +2,7 @@ Feature: Create(Article)
   We want to handle Create(Article) activities in the Inbox
 
   Scenario: We recieve a Create(Article) activity from someone we follow
-    Given an Actor "Alice"
+    Given an Actor "Person(Alice)"
     Given we follow "Alice"
     Then the request is accepted
     Given a "Accept(Follow(Alice))" Activity "Accept" by "Alice"
@@ -14,7 +14,7 @@ Feature: Create(Article)
     Then "A" is in our Inbox
 
   Scenario: We recieve a Create(Article) activity from someone we don't follow
-    Given an Actor "Alice"
+    Given an Actor "Person(Alice)"
     Given a "Create(Article)" Activity "A" by "Alice"
     When "Alice" sends "A" to the Inbox
     Then the request is accepted

features/handle-group-announce.feature

@@ -0,0 +1,26 @@
+Feature: Handling activities announced by a Group
+  Background:
+    Given an Actor "Person(Alice)"
+    And an Actor "Group(Wonderland)"
+    And we follow "Wonderland"
+    And the request is accepted
+    And a "Accept(Follow(Wonderland))" Activity "Accept" by "Wonderland"
+    And "Wonderland" sends "Accept" to the Inbox
+    And "Accept" is in our Inbox
+
+  Scenario: We recieve a Create(Article) activity announced by a Group
+    Given a "Create(Article)" Activity "Create" by "Alice"
+    And a "Announce(Create)" Activity "Announce" by "Wonderland"
+    When "Wonderland" sends "Announce" to the Inbox
+    Then "Create" is in our Inbox
+    And "Announce" is not in our Inbox
+
+  Scenario: We recieve a Create(Article) activity with a tampered object announced by a Group
+    Given an Actor "Person(Bob)"
+    And a "Note" Object "Spam" by "Bob"
+    And a "Article" Object "Article" by "Alice"
+    And a "Create(Article)" Activity "Create" by "Alice"
+    And "Create" has Object "Spam"
+    And a "Announce(Create)" Activity "Announce" by "Wonderland"
+    When "Wonderland" sends "Announce" to the Inbox
+    Then "Create" is in our Inbox with Object "Article"

features/handle-like.feature

@@ -2,8 +2,8 @@ Feature: Like(Article)
   We want to handle Like(Article) activities in the Inbox
 
   Scenario: We recieve a Like(Article) activity from someone
-    Given an Actor "Alice"
-    And an Actor "Bob"
+    Given an Actor "Person(Alice)"
+    And an Actor "Person(Bob)"
     And a "Create(Article)" Activity "A" by "Alice"
     And a "Like(A)" Activity "L" by "Bob"
     When "Bob" sends "L" to the Inbox

features/handle-replies.feature

@@ -10,7 +10,7 @@ Feature: Create(Note<inReplyTo>)
 
     Given the found "Create(Article)" as "ArticleCreate(OurArticle)"
 
-    Given an Actor "Alice"
+    Given an Actor "Person(Alice)"
     Given a "Note" Object "Reply" by "Alice"
     And "Reply" is a reply to "OurArticle"
     And a "Create(Reply)" Activity "A" by "Alice"

features/like-activity.feature

@@ -4,7 +4,7 @@ Feature: Liking an object
   So that I can express my approval of the content
 
   Scenario: Liking an object that has not been liked before
-    Given an Actor "Alice"
+    Given an Actor "Person(Alice)"
     Given we follow "Alice"
     Then the request is accepted
     Given a "Accept(Follow(Alice))" Activity "Accept" by "Alice"
@@ -20,7 +20,7 @@ Feature: Liking an object
     And a "Like(Note)" activity is sent to "Alice"
 
   Scenario: Liking an object that has been liked before
-    Given an Actor "Alice"
+    Given an Actor "Person(Alice)"
     Given we follow "Alice"
     Then the request is accepted
     Given a "Accept(Follow(Alice))" Activity "Accept" by "Alice"
@@ -35,7 +35,7 @@ Feature: Liking an object
     Then the request is rejected with a 409
 
   Scenario: Unliking an object that has not been liked before
-    Given an Actor "Alice"
+    Given an Actor "Person(Alice)"
     Given we follow "Alice"
     Then the request is accepted
     Given a "Accept(Follow(Alice))" Activity "Accept" by "Alice"
@@ -48,7 +48,7 @@ Feature: Liking an object
     Then the request is rejected with a 409
 
   Scenario: Unliking an object that has been liked before
-    Given an Actor "Alice"
+    Given an Actor "Person(Alice)"
     Given we follow "Alice"
     Then the request is accepted
     Given a "Accept(Follow(Alice))" Activity "Accept" by "Alice"