Database migration and code cleanup

4 files changed, 43 insertions, 81 deletions

diff --git a/plugins/omemo/src/contact_details_dialog.vala b/plugins/omemo/src/contact_details_dialog.vala
index 3b60580e..3ee6380a 100644
--- a/plugins/omemo/src/contact_details_dialog.vala
+++ b/plugins/omemo/src/contact_details_dialog.vala
@@ -20,11 +20,12 @@ public class ContactDetailsDialog : Gtk.Dialog {
 
 
     private void set_device_trust(Row device, bool trust) {
+        Database.IdentityMetaTable.TrustLevel trust_level = trust ? Database.IdentityMetaTable.TrustLevel.TRUSTED : Database.IdentityMetaTable.TrustLevel.UNTRUSTED;
         plugin.db.identity_meta.update()
                 .with(plugin.db.identity_meta.identity_id, "=", account.id)
                 .with(plugin.db.identity_meta.address_name, "=", device[plugin.db.identity_meta.address_name])
                 .with(plugin.db.identity_meta.device_id, "=", device[plugin.db.identity_meta.device_id])
-                .set(plugin.db.identity_meta.trusted_identity, trust).perform();
+                .set(plugin.db.identity_meta.trusted_identity, trust_level).perform();
 
         if(!trust) {
             plugin.app.stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).untrust_device(jid, device[plugin.db.identity_meta.device_id]);
@@ -33,11 +34,12 @@ public class ContactDetailsDialog : Gtk.Dialog {
         }
     }
 
-    private void add_fingerprint(Row device, int row, bool trust) {
+    private void add_fingerprint(Row device, int row, Database.IdentityMetaTable.TrustLevel trust) {
         string res = fingerprint_markup(fingerprint_from_base64(device[plugin.db.identity_meta.identity_key_public_base64]));
         Label lbl = new Label(res)
             { use_markup=true, justify=Justification.RIGHT, visible=true, margin = 8, halign = Align.START, valign = Align.CENTER };
-        Switch tgl = new Switch() {visible = true, halign = Align.END, valign = Align.CENTER, margin = 8, hexpand = true, active = trust };
+        //TODO: handle display of verified devices
+        Switch tgl = new Switch() {visible = true, halign = Align.END, valign = Align.CENTER, margin = 8, hexpand = true, active = (trust == Database.IdentityMetaTable.TrustLevel.TRUSTED) };
         tgl.state_set.connect((active) => {
             set_device_trust(device, active);
 
@@ -55,17 +57,17 @@ public class ContactDetailsDialog : Gtk.Dialog {
         this.jid = jid;
 
         int i = 0;
-        foreach (Row device in plugin.db.identity_meta.with_address(jid.to_string()).without_null(plugin.db.identity_meta.trusted_identity).with(plugin.db.identity_meta.identity_id, "=", account.id)) {
+        foreach (Row device in plugin.db.identity_meta.with_address(jid.to_string()).with(plugin.db.identity_meta.trusted_identity, "!=", Database.IdentityMetaTable.TrustLevel.UNKNOWN).with(plugin.db.identity_meta.identity_id, "=", account.id)) {
             if(device[plugin.db.identity_meta.identity_key_public_base64] == null)
                 continue;
-            add_fingerprint(device, i, device[plugin.db.identity_meta.trusted_identity]);
+            add_fingerprint(device, i, (Database.IdentityMetaTable.TrustLevel) device[plugin.db.identity_meta.trusted_identity]);
 
             i++;
 
         }
 
         int j = 0;
-        foreach (Row device in plugin.db.identity_meta.with_address(jid.to_string()).with_null(plugin.db.identity_meta.trusted_identity).with(plugin.db.identity_meta.identity_id, "=", account.id)) {
+        foreach (Row device in plugin.db.identity_meta.with_address(jid.to_string()).with(plugin.db.identity_meta.trusted_identity, "=", Database.IdentityMetaTable.TrustLevel.UNKNOWN).with(plugin.db.identity_meta.identity_id, "=", account.id)) {
             if(device[plugin.db.identity_meta.identity_key_public_base64] == null)
                 continue;
 
@@ -85,7 +87,7 @@ public class ContactDetailsDialog : Gtk.Dialog {
                 fingerprints_prompt.remove(lbl);
                 j--;
 
-                add_fingerprint(device, i, true);
+                add_fingerprint(device, i, Database.IdentityMetaTable.TrustLevel.TRUSTED);
                 i++;
 
                 if(j == 0)
@@ -102,7 +104,7 @@ public class ContactDetailsDialog : Gtk.Dialog {
                 fingerprints_prompt.remove(lbl);
                 j--;
 
-                add_fingerprint(device, i, false);
+                add_fingerprint(device, i, Database.IdentityMetaTable.TrustLevel.UNTRUSTED);
                 i++;
 
                 if(j == 0)
diff --git a/plugins/omemo/src/database.vala b/plugins/omemo/src/database.vala
index 2b295322..48fddde2 100644
--- a/plugins/omemo/src/database.vala
+++ b/plugins/omemo/src/database.vala
@@ -6,14 +6,27 @@ using Dino.Entities;
 namespace Dino.Plugins.Omemo {
 
 public class Database : Qlite.Database {
-    private const int VERSION = 1;
+    private const int VERSION = 2;
 
     public class IdentityMetaTable : Table {
-        public Column<int> identity_id = new Column.Integer("identity_id") { not_null = true };
+        public enum TrustLevel {
+            VERIFIED,
+            TRUSTED,
+            UNTRUSTED,
+            UNKNOWN;
+
+            public string to_string() {
+                int val = this;
+                return val.to_string();
+            }
+        }
+
+        //Default to provide backwards compatability
+        public Column<int> identity_id = new Column.Integer("identity_id") { not_null = true, min_version = 2, default = "-1" };
         public Column<string> address_name = new Column.Text("address_name") { not_null = true };
         public Column<int> device_id = new Column.Integer("device_id") { not_null = true };
         public Column<string?> identity_key_public_base64 = new Column.Text("identity_key_public_base64");
-        public Column<bool> trusted_identity = new Column.BoolInt("trusted_identity");
+        public Column<int> trusted_identity = new Column.Integer("trusted_identity") { not_null = true, default = TrustLevel.UNKNOWN.to_string() };
         public Column<bool> now_active = new Column.BoolInt("now_active") { default = "1" };
         public Column<long> last_active = new Column.Long("last_active");
 
@@ -41,16 +54,14 @@ public class Database : Qlite.Database {
             }
         }
 
-        public int64 insert_device_bundle(int32 identity_id, string address_name, int device_id, Bundle bundle, bool? trust) {
+        public int64 insert_device_bundle(int32 identity_id, string address_name, int device_id, Bundle bundle, TrustLevel trust) {
             if (bundle == null || bundle.identity_key == null) return -1;
-            UpsertBuilder query = upsert()
+            return upsert()
                     .value(this.identity_id, identity_id, true)
                     .value(this.address_name, address_name, true)
                     .value(this.device_id, device_id, true)
-                    .value(this.identity_key_public_base64, Base64.encode(bundle.identity_key.serialize()));
-            if(trust != null)
-                    query.value(this.trusted_identity, trust);
-            return query.perform();
+                    .value(this.identity_key_public_base64, Base64.encode(bundle.identity_key.serialize()))
+                    .value(this.trusted_identity, trust).perform();
         }
     }
 
diff --git a/plugins/omemo/src/manager.vala b/plugins/omemo/src/manager.vala
index 3047410c..dbb016a4 100644
--- a/plugins/omemo/src/manager.vala
+++ b/plugins/omemo/src/manager.vala
@@ -121,10 +121,10 @@ public class Manager : StreamInteractionModule, Object {
                     if (Plugin.DEBUG) print(@"OMEMO: message will be delayed: $state\n");
 
                     if (state.waiting_own_sessions > 0) {
-                        module.start_sessions_with((!)stream, conversation.account.bare_jid);
+                        module.fetch_bundles((!)stream, conversation.account.bare_jid);
                     }
                     if (state.waiting_other_sessions > 0 && message.counterpart != null) {
-                        module.start_sessions_with((!)stream, ((!)message.counterpart).bare_jid);
+                        module.fetch_bundles((!)stream, ((!)message.counterpart).bare_jid);
                     }
                     if (state.waiting_other_devicelist && message.counterpart != null) {
                         module.request_user_devicelist((!)stream, ((!)message.counterpart).bare_jid);
@@ -138,40 +138,12 @@ public class Manager : StreamInteractionModule, Object {
         stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).store_created.connect((store) => on_store_created(account, store));
         stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).device_list_loaded.connect((jid) => on_device_list_loaded(account, jid));
         stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).bundle_fetched.connect((jid, device_id, bundle) => on_bundle_fetched(account, jid, device_id, bundle));
-        stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).session_started.connect((jid, device_id) => on_session_started(account, jid, false));
-        stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).session_start_failed.connect((jid, device_id) => on_session_started(account, jid, true));
     }
 
     private void on_stream_negotiated(Account account, XmppStream stream) {
         stream_interactor.module_manager.get_module(account, StreamModule.IDENTITY).request_user_devicelist(stream, account.bare_jid);
     }
 
-    private void on_session_started(Account account, Jid jid, bool failed) {
-        if (Plugin.DEBUG) print(@"OMEMO: session start between $(account.bare_jid) and $jid $(failed ? "failed" : "successful")\n");
-        HashSet<Entities.Message> send_now = new HashSet<Entities.Message>();
-        lock (message_states) {
-            foreach (Entities.Message msg in message_states.keys) {
-                if (!msg.account.equals(account)) continue;
-                MessageState state = message_states[msg];
-                if (account.bare_jid.equals(jid)) {
-                    state.waiting_own_sessions--;
-                } else if (msg.counterpart != null && msg.counterpart.equals_bare(jid)) {
-                    state.waiting_other_sessions--;
-                }
-                if (state.should_retry_now()) {
-                    send_now.add(msg);
-                    state.active_send_attempt = true;
-                }
-            }
-        }
-        foreach (Entities.Message msg in send_now) {
-            if (msg.counterpart == null) continue;
-            Entities.Conversation? conv = stream_interactor.get_module(ConversationManager.IDENTITY).get_conversation((!)msg.counterpart, account);
-            if (conv == null) continue;
-            stream_interactor.get_module(MessageProcessor.IDENTITY).send_xmpp_message(msg, (!)conv, true);
-        }
-    }
-
     private void on_device_list_loaded(Account account, Jid jid) {
         if (Plugin.DEBUG) print(@"OMEMO: received device list for $(account.bare_jid) from $jid\n");
         HashSet<Entities.Message> send_now = new HashSet<Entities.Message>();
@@ -231,30 +203,21 @@ public class Manager : StreamInteractionModule, Object {
                 .with(db.identity_meta.identity_key_public_base64, "=", Base64.encode(bundle.identity_key.serialize()))
                 .count() > 0);
 
-        bool? trusted = null;
+        Database.IdentityMetaTable.TrustLevel trusted = Database.IdentityMetaTable.TrustLevel.UNKNOWN;
         foreach(Row row in db.identity_meta.with_address(jid.bare_jid.to_string())
                 .with(db.identity_meta.identity_id, "=", account.id)
                 .with(db.identity_meta.device_id, "=", device_id)) {
-            trusted = row[db.identity_meta.trusted_identity];
+            trusted = (Database.IdentityMetaTable.TrustLevel) row[db.identity_meta.trusted_identity];
             break;
         }
 
-        if(db.identity_meta.with_address(jid.bare_jid.to_string())
-                .with(db.identity_meta.identity_id, "=", account.id)
-                .with(db.identity_meta.device_id, "=", device_id)
-                .with_null(db.identity_meta.trusted_identity).count() > 0)
-            trusted = null;
-        
         if(untrust)
-            trusted = null;
-        else if (blind_trust && trusted == null)
-            trusted = true;
+            trusted = Database.IdentityMetaTable.TrustLevel.UNKNOWN;
+        else if (blind_trust && trusted == Database.IdentityMetaTable.TrustLevel.UNKNOWN)
+            trusted = Database.IdentityMetaTable.TrustLevel.TRUSTED;
 
         db.identity_meta.insert_device_bundle(account.id, jid.bare_jid.to_string(), device_id, bundle, trusted);
 
-        if(trusted == null)
-            trusted = false;
-
         XmppStream? stream = stream_interactor.get_stream(account);
         if(stream == null) return;
         StreamModule? module = ((!)stream).get_module(StreamModule.IDENTITY);
@@ -268,11 +231,11 @@ public class Manager : StreamInteractionModule, Object {
                 if (!msg.account.equals(account)) continue;
                 MessageState state = message_states[msg];
 
-                if (trusted != true) {
+                if (trusted != Database.IdentityMetaTable.TrustLevel.TRUSTED && trusted != Database.IdentityMetaTable.TrustLevel.VERIFIED) {
                     module.untrust_device(jid, device_id);
                 } else {
                     if(account.bare_jid.equals(jid) || (msg.counterpart != null && msg.counterpart.equals_bare(jid)))
-                        session_created = module.create_session_if_needed(stream, jid, device_id, bundle);
+                        session_created = module.start_session(stream, jid, device_id, bundle);
                 }
                 if (account.bare_jid.equals(jid) && session_created) {
                     state.waiting_own_sessions--;
diff --git a/plugins/omemo/src/stream_module.vala b/plugins/omemo/src/stream_module.vala
index a84c3582..83a3dd54 100644
--- a/plugins/omemo/src/stream_module.vala
+++ b/plugins/omemo/src/stream_module.vala
@@ -26,8 +26,6 @@ public class StreamModule : XmppStreamModule {
     public signal void store_created(Store store);
     public signal void device_list_loaded(Jid jid);
     public signal void bundle_fetched(Jid jid, int device_id, Bundle bundle);
-    public signal void session_started(Jid jid, int device_id);
-    public signal void session_start_failed(Jid jid, int device_id);
 
     public EncryptState encrypt(MessageStanza message, Jid self_jid) {
         EncryptState status = new EncryptState();
@@ -181,7 +179,7 @@ public class StreamModule : XmppStreamModule {
         device_list_loaded(jid);
     }
 
-    public void start_sessions_with(XmppStream stream, Jid jid) {
+    public void fetch_bundles(XmppStream stream, Jid jid) {
         if (!device_lists.has_key(jid)) {
             return;
         }
@@ -191,7 +189,7 @@ public class StreamModule : XmppStreamModule {
                 address.device_id = device_id;
                 try {
                     if (!store.contains_session(address)) {
-                        start_session_with(stream, jid, device_id);
+                        fetch_bundle(stream, jid, device_id);
                     }
                 } catch (Error e) {
                     // Ignore
@@ -201,21 +199,11 @@ public class StreamModule : XmppStreamModule {
         address.device_id = 0;
     }
 
-    public void start_session_with(XmppStream stream, Jid jid, int device_id) {
-        if (active_bundle_requests.add(jid.bare_jid.to_string() + @":$device_id")) {
-            if (Plugin.DEBUG) print(@"OMEMO: Asking for bundle from $(jid.bare_jid.to_string()):$device_id\n");
-            stream.get_module(Pubsub.Module.IDENTITY).request(stream, jid.bare_jid, @"$NODE_BUNDLES:$device_id", (stream, jid, id, node) => {
-                on_other_bundle_result(stream, jid, device_id, id, node);
-            });
-        }
-    }
-
     public void fetch_bundle(XmppStream stream, Jid jid, int device_id) {
         if (active_bundle_requests.add(jid.bare_jid.to_string() + @":$device_id")) {
             if (Plugin.DEBUG) print(@"OMEMO: Asking for bundle from $(jid.bare_jid.to_string()):$device_id\n");
             stream.get_module(Pubsub.Module.IDENTITY).request(stream, jid.bare_jid, @"$NODE_BUNDLES:$device_id", (stream, jid, id, node) => {
-                stream.get_module(IDENTITY).active_bundle_requests.remove(jid.bare_jid.to_string() + @":$device_id");
-                bundle_fetched(jid, device_id, new Bundle(node));
+                on_other_bundle_result(stream, jid, device_id, id, node);
             });
         }
     }
@@ -240,7 +228,6 @@ public class StreamModule : XmppStreamModule {
             }
             ignored_devices[jid].add(device_id);
         }
-        //session_start_failed(jid, device_id);
     }
 
     public bool is_ignored_device(Jid jid, int32 device_id) {
@@ -261,7 +248,7 @@ public class StreamModule : XmppStreamModule {
         stream.get_module(IDENTITY).active_bundle_requests.remove(jid.bare_jid.to_string() + @":$device_id");
     }
 
-    public bool create_session_if_needed(XmppStream stream, Jid jid, int32 device_id, Bundle bundle) {
+    public bool start_session(XmppStream stream, Jid jid, int32 device_id, Bundle bundle) {
         bool fail = false;
         int32 signed_pre_key_id = bundle.signed_pre_key_id;
         ECPublicKey? signed_pre_key = bundle.signed_pre_key;
@@ -285,7 +272,6 @@ public class StreamModule : XmppStreamModule {
                     }
                     SessionBuilder builder = store.create_session_builder(address);
                     builder.process_pre_key_bundle(create_pre_key_bundle(device_id, device_id, pre_key_id, pre_key, signed_pre_key_id, signed_pre_key, signed_pre_key_signature, identity_key));
-                    //stream.get_module(IDENTITY).session_started(jid, device_id);
                 } catch (Error e) {
                     fail = true;
                 }