Implement voting on remote polls

src/ap

@@ -1 +1 @@
-Subproject commit 904a471760e1990a6505034764154e0eb6c3817d
+Subproject commit d8fa4876c55670287e41c1698f2500881d0b02d4

src/model/status/poll.c

@@ -1,10 +1,14 @@
 #include "poll.h"
 
 #include "model/account.h"
+#include "model/activity.h"
 #include "model/emoji.h"
+#include "model/server.h"
 #include "model/status.h"
 
+#include "ap/object.h"
 #include "collections/array.h"
+#include "util/format.h"
 
 #include <stdlib.h>
 #include <stddef.h>
@@ -108,15 +112,54 @@ bool status_poll_add_vote( struct status* s, struct account* a, void* choices_pt
 		}
 	}
 
-	// Federate response if account is owner
-	if( a->id == owner_account_id ) {
+	// Federate response if account is owner and this isn't a local poll
+	if( s->remote && a->id == owner_account_id ) {
 		s->poll->voted = true;
 
 		// https://www.w3.org/TR/activitystreams-vocabulary/#questions
 		// See Example 153
 
-		printf( "TODO: Create federation object\n" );
-		//struct ap_object* obj;
+		struct account* owner = account_from_id( owner_account_id );
+		struct account* poll_owner = account_from_id( s->account_id );
+		char* cc;
+
+		// Create the note
+		struct ap_object* note = ap_object_new();
+		note->type = ap_Note;
+		note->id = aformat( "https://%s/votes/%d", g_server->domain, s->id );
+		note->attributed_to = aformat( "https://%s/owner/actor", g_server->domain );
+		note->actor = aformat( "https://%s/owner/actor", g_server->domain );
+		note->name = strdup( s->poll->options.items[choices->items[0]]->title );
+		note->in_reply_to = strdup( s->url );
+		cc = strdup( poll_owner->account_id );
+		array_append( &note->cc, sizeof(cc), &cc );
+
+		struct ap_activity_tag* mention = ap_activity_tag_new();
+		mention->type = aptag_mention;
+		mention->href = strdup( poll_owner->account_id );
+		mention->name = aformat( "@%s@%s", poll_owner->handle, poll_owner->server );
+
+		array_append( &note->tags, sizeof(mention), &mention );
+
+		// Create the activity
+		struct ap_object* act = activity_new_local_activity();
+		activity_allocate_local_id(act);
+
+		act->type = ap_Create;
+		act->actor = aformat( "https://%s/owner/actor", g_server->domain );
+		act->id = aformat( "https://%s/activity/%d", g_server->domain, act->local_id );
+		act->object.tag = apaot_object;
+		act->object.ptr = note;
+
+		cc = strdup( poll_owner->account_id );
+		array_append( &act->cc, sizeof(cc), &cc );
+
+		account_free(owner);
+		account_free(poll_owner);
+
+		activity_save(act);
+		activity_deliver(act);
+		ap_object_free(act);
 	}
 
 	status_poll_update_vote_count( s->poll );