Remove features from service discovery module when detaching module from stream

fixes #179
fixes #812

libdino/src/service/entity_capabilities_storage.vala

@@ -24,7 +24,7 @@ public class EntityCapabilitiesStorage : Xep.EntityCapabilities.Storage, Object
         }
     }
 
-    public void store_identities(string entity, Gee.List<Identity> identities) {
+    public void store_identities(string entity, Gee.Set<Identity> identities) {
         foreach (Identity identity in identities) {
             if (identity.category == Identity.CATEGORY_CLIENT) {
                 db.entity_identity.insert()

plugins/omemo/src/jingle/jet_omemo.vala

@@ -26,6 +26,7 @@ public class Module : XmppStreamModule, Jet.EnvelopEncoding {
     }
 
     public override void detach(XmppStream stream) {
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
     }
 
     public bool is_available(XmppStream stream, Jid full_jid) {

plugins/omemo/src/protocol/stream_module.vala

@@ -35,7 +35,9 @@ public class StreamModule : XmppStreamModule {
         stream.get_module(Pubsub.Module.IDENTITY).add_filtered_notification(stream, NODE_DEVICELIST, (stream, jid, id, node) => parse_device_list(stream, jid, id, node), null);
     }
 
-    public override void detach(XmppStream stream) {}
+    public override void detach(XmppStream stream) {
+        stream.get_module(Pubsub.Module.IDENTITY).remove_filtered_notification(stream, NODE_DEVICELIST);
+    }
 
     public async ArrayList<int32> request_user_devicelist(XmppStream stream, Jid jid) {
         var future = active_devicelist_requests[jid];

xmpp-vala/src/module/xep/0030_service_discovery/flag.vala

@@ -6,11 +6,24 @@ public class Flag : XmppStreamFlag {
     public static FlagIdentity<Flag> IDENTITY = new FlagIdentity<Flag>(NS_URI, "service_discovery");
 
     private HashMap<Jid, Gee.List<string>?> entity_features = new HashMap<Jid, Gee.List<string>?>(Jid.hash_func, Jid.equals_func);
-    private HashMap<Jid, Gee.List<Identity>?> entity_identities = new HashMap<Jid, Gee.List<Identity>?>(Jid.hash_func, Jid.equals_func);
+    private HashMap<Jid, Gee.Set<Identity>?> entity_identities = new HashMap<Jid, Gee.Set<Identity>?>(Jid.hash_func, Jid.equals_func);
     private HashMap<Jid, Gee.List<Item>?> entity_items = new HashMap<Jid, Gee.List<Item>?>(Jid.hash_func, Jid.equals_func);
-    public Gee.List<string> features = new ArrayList<string>();
 
-    public Gee.List<Identity>? get_entity_categories(Jid jid) {
+    private Gee.Set<string> own_features_ = new HashSet<string>();
+    public Gee.List<string> own_features {
+        owned get {
+            var ret = new ArrayList<string>();
+            foreach (var feature in own_features_) ret.add(feature);
+            return ret;
+        }
+    }
+
+    private Gee.Set<Identity> own_identities_ = new HashSet<Identity>(Identity.hash_func, Identity.equals_func);
+    public Gee.Set<Identity> own_identities {
+        owned get { return own_identities_.read_only_view; }
+    }
+
+    public Gee.Set<Identity>? get_entity_categories(Jid jid) {
         return entity_identities.has_key(jid) ? entity_identities[jid] : null; // TODO isn’t this default for hashmap
     }
 
@@ -29,7 +42,7 @@ public class Flag : XmppStreamFlag {
         return entity_features[jid].contains(feature);
     }
 
-    public void set_entity_identities(Jid jid, Gee.List<Identity>? identities) {
+    public void set_entity_identities(Jid jid, Gee.Set<Identity>? identities) {
         entity_identities[jid] = identities;
     }
 
@@ -41,7 +54,20 @@ public class Flag : XmppStreamFlag {
         entity_items[jid] = features;
     }
 
-    public void add_own_feature(string feature) { features.add(feature); }
+    public void add_own_feature(string feature) {
+        if (own_features_.contains(feature)) {
+            warning("Tried to add the feature %s a second time".printf(feature));
+            return;
+        }
+        own_features_.add(feature);
+    }
+
+    public void remove_own_feature(string feature) {
+        own_features_.remove(feature);
+    }
+
+    public void add_own_identity(Identity identity) { own_identities_.add(identity); }
+    public void remove_own_identity(Identity identity) { own_identities_.remove(identity); }
 
     public override string get_ns() { return NS_URI; }
 

xmpp-vala/src/module/xep/0030_service_discovery/identity.vala

@@ -17,6 +17,18 @@ public class Identity {
         this.type_ = type;
         this.name = name;
     }
+
+    public static uint hash_func(Identity a) {
+        uint hash = a.category.hash() ^ a.type_.hash();
+        if (a.name != null) {
+            hash ^= a.name.hash();
+        }
+        return hash;
+    }
+
+    public static bool equals_func(Identity a, Identity b) {
+        return a.category == b.category && a.type_ == b.type_ && a.name == b.name;
+    }
 }
 
 }

xmpp-vala/src/module/xep/0030_service_discovery/info_result.vala

@@ -20,9 +20,9 @@ public class InfoResult {
         }
     }
 
-    public Gee.List<Identity> identities {
+    public Gee.Set<Identity> identities {
         owned get {
-            ArrayList<Identity> ret = new ArrayList<Identity>();
+            HashSet<Identity> ret = new HashSet<Identity>();
             foreach (StanzaNode feature_node in iq.stanza.get_subnode("query", NS_URI_INFO).get_subnodes("identity", NS_URI_INFO)) {
                 ret.add(new Identity(feature_node.get_attribute("category", NS_URI_INFO),
                                         feature_node.get_attribute("type", NS_URI_INFO),

xmpp-vala/src/module/xep/0030_service_discovery/module.vala

@@ -9,27 +9,39 @@ public const string NS_URI_ITEMS = NS_URI + "#items";
 public class Module : XmppStreamModule, Iq.Handler {
     public static ModuleIdentity<Module> IDENTITY = new ModuleIdentity<Module>(NS_URI, "0030_service_discovery_module");
 
-    public ArrayList<Identity> identities = new ArrayList<Identity>();
+    public Identity own_identity;
 
     public Module.with_identity(string category, string type, string? name = null) {
-        add_identity(category, type, name);
+        own_identity = new Identity(category, type, name);
     }
 
     public void add_feature(XmppStream stream, string feature) {
         stream.get_flag(Flag.IDENTITY).add_own_feature(feature);
     }
 
+    public void remove_feature(XmppStream stream, string feature) {
+        stream.get_flag(Flag.IDENTITY).remove_own_feature(feature);
+    }
+
     public void add_feature_notify(XmppStream stream, string feature) {
         add_feature(stream, feature + "+notify");
     }
 
-    public void add_identity(string category, string type, string? name = null) {
+    public void remove_feature_notify(XmppStream stream, string feature) {
-        identities.add(new Identity(category, type, name));
+        remove_feature(stream, feature + "+notify");
     }
 
-    public delegate void HasEntryCategoryRes(XmppStream stream, Gee.List<Identity>? identities);
+    public void add_identity(XmppStream stream, Identity identity) {
+        stream.get_flag(Flag.IDENTITY).add_own_identity(identity);
+    }
+
+    public void remove_identity(XmppStream stream, Identity identity) {
+        stream.get_flag(Flag.IDENTITY).remove_own_identity(identity);
+    }
+
+    public delegate void HasEntryCategoryRes(XmppStream stream, Gee.Set<Identity>? identities);
     public void get_entity_categories(XmppStream stream, Jid jid, owned HasEntryCategoryRes listener) {
-        Gee.List<Identity>? res = stream.get_flag(Flag.IDENTITY).get_entity_categories(jid);
+        Gee.Set<Identity>? res = stream.get_flag(Flag.IDENTITY).get_entity_categories(jid);
         if (res != null) listener(stream, res);
         request_info(stream, jid, (stream, query_result) => {
             listener(stream, query_result != null ? query_result.identities : null);
@@ -68,12 +80,17 @@ public class Module : XmppStreamModule, Iq.Handler {
 
     public override void attach(XmppStream stream) {
         stream.add_flag(new Flag());
+        add_identity(stream, own_identity);
+
         stream.get_module(Iq.Module.IDENTITY).register_for_namespace(NS_URI_INFO, this);
         add_feature(stream, NS_URI_INFO);
     }
 
     public override void detach(XmppStream stream) {
+        remove_identity(stream, own_identity);
+
         stream.get_module(Iq.Module.IDENTITY).unregister_from_namespace(NS_URI_INFO, this);
+        remove_feature(stream, NS_URI_INFO);
     }
 
     public static void require(XmppStream stream) {
@@ -85,8 +102,8 @@ public class Module : XmppStreamModule, Iq.Handler {
 
     private void send_query_result(XmppStream stream, Iq.Stanza iq_request) {
         InfoResult query_result = new ServiceDiscovery.InfoResult(iq_request);
-        query_result.features = stream.get_flag(Flag.IDENTITY).features;
+        query_result.features = stream.get_flag(Flag.IDENTITY).own_features;
-        query_result.identities = identities;
+        query_result.identities = stream.get_flag(Flag.IDENTITY).own_identities;
         stream.get_module(Iq.Module.IDENTITY).send_iq(stream, query_result.iq);
     }
 }

xmpp-vala/src/module/xep/0045_muc/module.vala

@@ -221,9 +221,7 @@ public class Module : XmppStreamModule {
         stream.get_module(Presence.Module.IDENTITY).received_presence.connect(check_for_enter_error);
         stream.get_module(Presence.Module.IDENTITY).received_available.connect(on_received_available);
         stream.get_module(Presence.Module.IDENTITY).received_unavailable.connect(on_received_unavailable);
-        if (stream.get_module(ServiceDiscovery.Module.IDENTITY) != null) {
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).add_feature(stream, NS_URI);
-            stream.get_module(ServiceDiscovery.Module.IDENTITY).add_feature(stream, NS_URI);
-        }
     }
 
     public override void detach(XmppStream stream) {
@@ -232,6 +230,7 @@ public class Module : XmppStreamModule {
         stream.get_module(Presence.Module.IDENTITY).received_presence.disconnect(check_for_enter_error);
         stream.get_module(Presence.Module.IDENTITY).received_available.disconnect(on_received_available);
         stream.get_module(Presence.Module.IDENTITY).received_unavailable.disconnect(on_received_unavailable);
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
     }
 
     public override string get_ns() { return NS_URI; }

xmpp-vala/src/module/xep/0060_pubsub.vala

@@ -29,6 +29,12 @@ namespace Xmpp.Xep.Pubsub {
             }
         }
 
+        public void remove_filtered_notification(XmppStream stream, string node) {
+            stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature_notify(stream, node);
+            item_listeners.unset(node);
+            retract_listeners.unset(node);
+        }
+
         public async Gee.List<StanzaNode>? request_all(XmppStream stream, Jid jid, string node) { // TODO multiple nodes gehen auch
             Iq.Stanza request_iq = new Iq.Stanza.get(new StanzaNode.build("pubsub", NS_URI).add_self_xmlns().put_node(new StanzaNode.build("items", NS_URI).put_attribute("node", node)));
             request_iq.to = jid;

xmpp-vala/src/module/xep/0084_user_avatars.vala

@@ -35,7 +35,9 @@ namespace Xmpp.Xep.UserAvatars {
             stream.get_module(Pubsub.Module.IDENTITY).add_filtered_notification(stream, NS_URI_METADATA, on_pupsub_event, null);
         }
 
-        public override void detach(XmppStream stream) { }
+        public override void detach(XmppStream stream) {
+            stream.get_module(Pubsub.Module.IDENTITY).remove_filtered_notification(stream, NS_URI_METADATA);
+        }
 
 
         public void on_pupsub_event(XmppStream stream, Jid jid, string id, StanzaNode? node) {

xmpp-vala/src/module/xep/0085_chat_state_notifications.vala

@@ -37,6 +37,7 @@ public class Module : XmppStreamModule {
     }
 
     public override void detach(XmppStream stream) {
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
         stream.get_module(MessageModule.IDENTITY).received_message.disconnect(on_received_message);
         stream.get_module(MessageModule.IDENTITY).send_pipeline.disconnect(send_pipeline_listener);
     }

xmpp-vala/src/module/xep/0115_entitiy_capabilities.vala

@@ -28,7 +28,7 @@ namespace Xmpp.Xep.EntityCapabilities {
 
         private string get_own_hash(XmppStream stream) {
             if (own_ver_hash == null) {
-                own_ver_hash = compute_hash(stream.get_module(ServiceDiscovery.Module.IDENTITY).identities, stream.get_flag(ServiceDiscovery.Flag.IDENTITY).features, new ArrayList<DataForms.DataForm>());
+                own_ver_hash = compute_hash(stream.get_flag(ServiceDiscovery.Flag.IDENTITY).own_identities, stream.get_flag(ServiceDiscovery.Flag.IDENTITY).own_features, new ArrayList<DataForms.DataForm>());
             }
             return own_ver_hash;
         }
@@ -42,6 +42,7 @@ namespace Xmpp.Xep.EntityCapabilities {
         public override void detach(XmppStream stream) {
             stream.get_module(Presence.Module.IDENTITY).pre_send_presence_stanza.disconnect(on_pre_send_presence_stanza);
             stream.get_module(Presence.Module.IDENTITY).received_presence.disconnect(on_received_presence);
+            stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
         }
 
         public override string get_ns() { return NS_URI; }
@@ -86,7 +87,10 @@ namespace Xmpp.Xep.EntityCapabilities {
             }
         }
 
-        private static string compute_hash(Gee.List<ServiceDiscovery.Identity> identities, Gee.List<string> features, Gee.List<DataForms.DataForm> data_forms) {
+        private static string compute_hash(Gee.Set<ServiceDiscovery.Identity> identities_set, Gee.List<string> features, Gee.List<DataForms.DataForm> data_forms) {
+            var identities = new ArrayList<ServiceDiscovery.Identity>();
+            foreach (var identity in identities_set) identities.add(identity);
+
             identities.sort(compare_identities);
             features.sort();
 
@@ -154,7 +158,7 @@ namespace Xmpp.Xep.EntityCapabilities {
     }
 
     public interface Storage : Object {
-        public abstract void store_identities(string entity, Gee.List<ServiceDiscovery.Identity> identities);
+        public abstract void store_identities(string entity, Gee.Set<ServiceDiscovery.Identity> identities);
         public abstract void store_features(string entity, Gee.List<string> capabilities);
         public abstract ServiceDiscovery.Identity? get_identities(string entity);
         public abstract Gee.List<string> get_features(string entity);

xmpp-vala/src/module/xep/0166_jingle.vala

@@ -127,6 +127,7 @@ public class Module : XmppStreamModule, Iq.Handler {
         current_stream = stream;
     }
     public override void detach(XmppStream stream) {
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
         stream.get_module(Iq.Module.IDENTITY).unregister_from_namespace(NS_URI, this);
     }
 

xmpp-vala/src/module/xep/0184_message_delivery_receipts.vala

@@ -26,6 +26,7 @@ namespace Xmpp.Xep.MessageDeliveryReceipts {
         }
 
         public override void detach(XmppStream stream) {
+            stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
             stream.get_module(MessageModule.IDENTITY).received_message.disconnect(received_message);
             stream.get_module(MessageModule.IDENTITY).send_pipeline.disconnect(send_pipeline_listener);
         }

xmpp-vala/src/module/xep/0191_blocking_command.vala

@@ -72,8 +72,9 @@ public class Module : XmppStreamModule, Iq.Handler {
     }
 
     public override void detach(XmppStream stream) {
-        stream.stream_negotiated.disconnect(on_stream_negotiated);
         stream.get_module(Iq.Module.IDENTITY).unregister_from_namespace(NS_URI, this);
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
+        stream.stream_negotiated.disconnect(on_stream_negotiated);
     }
 
     public override string get_ns() { return NS_URI; }

xmpp-vala/src/module/xep/0199_ping.vala

@@ -22,6 +22,7 @@ namespace Xmpp.Xep.Ping {
 
         public override void detach(XmppStream stream) {
             stream.get_module(Iq.Module.IDENTITY).unregister_from_namespace(NS_URI, this);
+            stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
         }
 
         public void on_iq_get(XmppStream stream, Iq.Stanza iq) {

xmpp-vala/src/module/xep/0234_jingle_file_transfer.vala

@@ -13,7 +13,9 @@ public class Module : Jingle.ContentType, XmppStreamModule {
         stream.get_module(ServiceDiscovery.Module.IDENTITY).add_feature(stream, NS_URI);
         stream.get_module(Jingle.Module.IDENTITY).register_content_type(this);
     }
-    public override void detach(XmppStream stream) { }
+    public override void detach(XmppStream stream) {
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
+    }
 
     public string content_type_ns_uri() {
         return NS_URI;

xmpp-vala/src/module/xep/0260_jingle_socks5_bytestreams.vala

@@ -13,7 +13,9 @@ public class Module : Jingle.Transport, XmppStreamModule {
         stream.get_module(Jingle.Module.IDENTITY).register_transport(this);
         stream.get_module(ServiceDiscovery.Module.IDENTITY).add_feature(stream, NS_URI);
     }
-    public override void detach(XmppStream stream) { }
+    public override void detach(XmppStream stream) {
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
+    }
 
     public override string get_ns() { return NS_URI; }
     public override string get_id() { return IDENTITY.id; }

xmpp-vala/src/module/xep/0261_jingle_in_band_bytestreams.vala

@@ -14,7 +14,9 @@ public class Module : Jingle.Transport, XmppStreamModule {
         stream.get_module(Jingle.Module.IDENTITY).register_transport(this);
         stream.get_module(ServiceDiscovery.Module.IDENTITY).add_feature(stream, NS_URI);
     }
-    public override void detach(XmppStream stream) { }
+    public override void detach(XmppStream stream) {
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
+    }
 
     public override string get_ns() { return NS_URI; }
     public override string get_id() { return IDENTITY.id; }

xmpp-vala/src/module/xep/0280_message_carbons.vala

@@ -26,6 +26,7 @@ public class Module : XmppStreamModule {
     public override void detach(XmppStream stream) {
         stream.stream_negotiated.disconnect(enable);
         stream.get_module(MessageModule.IDENTITY).received_pipeline.disconnect(received_pipeline_listener);
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
     }
 
     public override string get_ns() {

xmpp-vala/src/module/xep/0308_last_message_correction.vala

@@ -21,7 +21,9 @@ public class Module : XmppStreamModule {
         stream.get_module(ServiceDiscovery.Module.IDENTITY).add_feature(stream, NS_URI);
     }
 
-    public override void detach(XmppStream stream) {}
+    public override void detach(XmppStream stream) {
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
+    }
 
     public override string get_ns() { return NS_URI; }
 

xmpp-vala/src/module/xep/0333_chat_markers.vala

@@ -36,8 +36,9 @@ public class Module : XmppStreamModule {
     }
 
     public override void detach(XmppStream stream) {
-        stream.get_module(MessageModule.IDENTITY).received_message.disconnect(on_received_message);
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
         stream.get_module(MessageModule.IDENTITY).send_pipeline.disconnect(send_pipeline_listener);
+        stream.get_module(MessageModule.IDENTITY).received_message.disconnect(on_received_message);
     }
 
     public override string get_ns() { return NS_URI; }

xmpp-vala/src/module/xep/0359_unique_stable_stanza_ids.vala

@@ -14,7 +14,9 @@ public class Module : XmppStreamModule {
         stream.get_module(ServiceDiscovery.Module.IDENTITY).add_feature(stream, NS_URI);
     }
 
-    public override void detach(XmppStream stream) {}
+    public override void detach(XmppStream stream) {
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
+    }
 
     public override string get_ns() { return NS_URI; }
 

xmpp-vala/src/module/xep/0391_jingle_encrypted_transports.vala

@@ -15,6 +15,7 @@ public class Module : XmppStreamModule, SecurityPrecondition {
     }
 
     public override void detach(XmppStream stream) {
+        stream.get_module(ServiceDiscovery.Module.IDENTITY).remove_feature(stream, NS_URI);
     }
 
     public bool is_available(XmppStream stream, Jid full_jid) {

xmpp-vala/src/module/xep/0402_bookmarks2.vala

@@ -101,7 +101,9 @@ public class Module : BookmarksProvider, XmppStreamModule {
         stream.get_module(Pubsub.Module.IDENTITY).add_filtered_notification(stream, NS_URI, on_pupsub_item, on_pupsub_retract);
     }
 
-    public override void detach(XmppStream stream) { }
+    public override void detach(XmppStream stream) {
+        stream.get_module(Pubsub.Module.IDENTITY).remove_filtered_notification(stream, NS_URI);
+    }
 
     public override string get_ns() { return NS_URI; }
     public override string get_id() { return IDENTITY.id; }