From 0aaab4af7e4de9350fca52ce6cbcc0dce95aecd5 Mon Sep 17 00:00:00 2001
From: Gergely Polonkai <gergely@polonkai.eu>
Date: Mon, 7 Mar 2016 15:17:50 +0100
Subject: [PATCH] Add event handler for m.room.aliases events

---
 .gitignore                         |  1 +
 src/Makefile.am                    |  1 +
 src/matrix-event-room-aliases.vala | 70 ++++++++++++++++++++++++++++++
 src/matrix-event-types.c           |  3 ++
 4 files changed, 75 insertions(+)
 create mode 100644 src/matrix-event-room-aliases.vala

diff --git a/.gitignore b/.gitignore
index 8e4e030..8aaa95a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -61,3 +61,4 @@ Makefile.in
 /src/namespace-info.c
 /src/matrix-event-room-topic.c
 /src/matrix-event-typing.c
+/src/matrix-event-room-aliases.c
diff --git a/src/Makefile.am b/src/Makefile.am
index e0f93ab..96f1f24 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -31,6 +31,7 @@ libmatrix_glib_0_0_la_VALA_SOURCES = \
 	matrix-event-room-message.vala \
 	matrix-event-room-topic.vala \
 	matrix-event-typing.vala \
+	matrix-event-room-aliases.vala \
 	$(NULL)
 
 AM_CPPFLAGS += \
diff --git a/src/matrix-event-room-aliases.vala b/src/matrix-event-room-aliases.vala
new file mode 100644
index 0000000..e82fa0c
--- /dev/null
+++ b/src/matrix-event-room-aliases.vala
@@ -0,0 +1,70 @@
+/*
+ * This file is part of matrix-glib-sdk
+ *
+ * matrix-glib-sdk is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * matrix-glib-sdk is distributed in the hope that it will be
+ * useful, but WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with matrix-glib-sdk. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Class to hold a m.room.aliases event.
+ *
+ * This event is sent by a homeserver directly to inform of changes to
+ * the list of aliases it knows about for that room.
+ *
+ * The state_key for this event is set to the homeserver which owns
+ * the room alias.
+ *
+ * The entire set of known aliases for the room is the union of all
+ * the m.room.aliases events, one for each homeserver. Clients should
+ * check the validity of any room alias given in this list before
+ * presenting it to the user as trusted fact. The lists given by this
+ * event should be considered simply as advice on which aliases might
+ * exist, for which the client can perform the lookup to confirm
+ * whether it receives the correct room ID.
+ */
+public class Matrix.Event.RoomAliases : Matrix.Event.State {
+    private List<string>? _aliases = null;
+
+    /**
+     * A list of room aliases.
+     */
+    public List<string>? aliases {
+        get {
+            return _aliases;
+        }
+
+        set {
+            _aliases = value.copy();
+        }
+
+        default = null;
+    }
+
+    protected override void
+    from_json(Json.Node json_data)
+        throws Matrix.Error
+    {
+        var content_root = json_data.get_object()
+            .get_member("content").get_object();
+        Json.Node? node;
+
+        if ((node = content_root.get_member("aliases")) != null) {
+            _aliases = null;
+
+            node.get_array().foreach_element((ary, idx, member_node) => {
+                    _aliases.prepend(member_node.get_string());
+                });
+        }
+    }
+}
diff --git a/src/matrix-event-types.c b/src/matrix-event-types.c
index b017ff7..1ba7157 100644
--- a/src/matrix-event-types.c
+++ b/src/matrix-event-types.c
@@ -167,6 +167,9 @@ matrix_event_types_ctor(void)
     matrix_event_register_type("m.typing",
                                MATRIX_EVENT_TYPE_TYPING,
                                NULL);
+    matrix_event_register_type("m.room.aliases",
+                               MATRIX_EVENT_TYPE_ROOM_ALIASES,
+                               NULL);
 }
 
 void