matrix-glib-sdk/src/matrix-event-room-aliases.vala

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/*
* 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 {
/**
* A list of room aliases.
*/
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public string[] aliases { get; set; }
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) {
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_aliases = new string[node.get_array().get_length()];
node.get_array().foreach_element((ary, idx, member_node) => {
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_aliases[idx] = member_node.get_string();
});
} else if (Config.DEBUG) {
warning("content.aliases is missing from a m.room.aliases event");
}
base.from_json(json_data);
}
protected override void
to_json(Json.Node json_data)
throws Matrix.Error
{
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if (_aliases.length == 0) {
throw new Matrix.Error.INCOMPLETE(
"Won't generate a m.room.aliases event without aliases");
}
var content_root = json_data.get_object()
.get_member("content").get_object();
var aliases_ary = new Json.Array();
foreach (var entry in _aliases) {
aliases_ary.add_string_element(entry);
}
var aliases_node = new Json.Node(Json.NodeType.ARRAY);
aliases_node.set_array(aliases_ary);
content_root.set_member("aliases", aliases_node);
base.to_json(json_data);
}
}