293 lines
9.1 KiB
C
293 lines
9.1 KiB
C
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/*
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* This file is part of matrix-glib-sdk
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*
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* matrix-glib-sdk is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, either
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* version 3 of the License, or (at your option) any later version.
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*
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* matrix-glib-sdk is distributed in the hope that it will be
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* useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with matrix-glib-sdk. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include "matrix-event-room-aliases.h"
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#include "matrix-types.h"
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#include "config.h"
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/**
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* SECTION:matrix-event-room-aliases
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* @short_description: event to list the aliases of a room
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*
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* This is the default event handler for `m.room.aliases` events.
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*
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* This event is sent by a homeserver directly to inform of changes to the list of aliases it
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* knows about for that room.
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*
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* The state_key for this event is set to the homeserver which owns the room alias.
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*
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* The entire set of known aliases for the room is the union of all the `m.room.aliases`
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* events, one for each homeserver. Clients should check the validity of any room alias given
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* in this list before presenting it to the user as trusted fact. The lists given by this
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* event should be considered simply as advice on which aliases might exist, for which the
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* client can perform the lookup to confirm whether it receives the correct room ID.
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*/
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enum {
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PROP_0,
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PROP_ALIASES,
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NUM_PROPS
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};
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static GParamSpec* matrix_event_room_aliases_properties[NUM_PROPS];
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typedef struct {
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gchar** _aliases;
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gint _aliases_len;
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gint __aliases_size_;
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} MatrixEventRoomAliasesPrivate;
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/**
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* MatrixEventRoomAliases:
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*/
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G_DEFINE_TYPE_WITH_PRIVATE(MatrixEventRoomAliases, matrix_event_room_aliases, MATRIX_EVENT_TYPE_STATE);
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static void
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matrix_event_room_aliases_real_from_json(MatrixEventBase *matrix_event_base, JsonNode *json_data, GError **error)
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{
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MatrixEventRoomAliasesPrivate *priv;
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JsonObject *root;
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JsonObject *content_root;
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JsonNode *content_node;
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JsonNode *node;
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GError *inner_error = NULL;
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g_return_if_fail (json_data != NULL);
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priv = matrix_event_room_aliases_get_instance_private(MATRIX_EVENT_ROOM_ALIASES(matrix_event_base));
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root = json_node_get_object(json_data);
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content_node = json_object_get_member(root, "content");
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content_root = json_node_get_object(content_node);
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if ((node = json_object_get_member(content_root, "aliases")) != NULL) {
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JsonArray *aliases;
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gint n_aliases;
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aliases = json_node_get_array(node);
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n_aliases = json_array_get_length(aliases);
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for (gint i = 0; i < priv->_aliases_len; i++) {
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g_free(priv->_aliases[i]);
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}
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g_free(priv->_aliases);
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priv->_aliases = g_new(gchar *, n_aliases);
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for (gint i = 0; i < n_aliases; i++) {
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JsonNode *element = json_array_get_element(aliases, i);
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priv->_aliases[i] = g_strdup(json_node_get_string(element));
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}
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} else if (DEBUG) {
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g_warning("content.aliases is missing from a m.room.aliases event");
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}
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MATRIX_EVENT_BASE_CLASS(matrix_event_room_aliases_parent_class)->from_json(matrix_event_base, json_data, &inner_error);
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if (inner_error != NULL) {
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g_propagate_error(error, inner_error);
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}
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}
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static void
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matrix_event_room_aliases_real_to_json(MatrixEventBase *matrix_event_base, JsonNode *json_data, GError **error)
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{
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MatrixEventRoomAliasesPrivate *priv;
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JsonObject *root;
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JsonObject *content_root;
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JsonArray *aliases_ary;
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JsonNode *content_node;
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JsonNode *aliases_node;
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GError *inner_error = NULL;
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priv = matrix_event_room_aliases_get_instance_private(MATRIX_EVENT_ROOM_ALIASES(matrix_event_base));
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if (priv->_aliases_len == 0) {
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g_set_error(error, MATRIX_ERROR, MATRIX_ERROR_INCOMPLETE,
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"Won't generate a m.room.aliases event without aliases");
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return;
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}
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root = json_node_get_object(json_data);
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content_node = json_object_get_member(root, "content");
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content_root = json_node_get_object(content_node);
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aliases_ary = json_array_new();
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for (gint i = 0; i < priv->_aliases_len; i++) {
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json_array_add_string_element(aliases_ary, priv->_aliases[i]);
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}
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aliases_node = json_node_new(JSON_TYPE_ARRAY);
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json_node_set_array(aliases_node, aliases_ary);
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json_object_set_member(content_root, "aliases", aliases_node);
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MATRIX_EVENT_BASE_CLASS(matrix_event_room_aliases_parent_class)->to_json(matrix_event_base, json_data, &inner_error);
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if (inner_error != NULL) {
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g_propagate_error(error, inner_error);
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}
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}
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/**
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* matrix_event_room_aliases_new:
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*
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* Create a new #MatrixEventRoomAliases object.
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*
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* Returns: (transfer full): a new #MatrixEventRoomAliases object
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*/
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MatrixEventRoomAliases *
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matrix_event_room_aliases_new(void)
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{
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return (MatrixEventRoomAliases *)matrix_event_state_construct(MATRIX_EVENT_TYPE_ROOM_ALIASES);
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}
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/**
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* matrix_event_room_aliases_get_aliases:
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* @event: a MatrixEventRoomAliases
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* @n_aliases: placeholder for the length of the list, or %NULL to ignore
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*
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* Get the list of aliases from @event.
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*
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* The returned value is owned by @event and should not be freed.
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*
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* Returns: (transfer none) (nullable): the list of aliases
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*/
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const gchar **
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matrix_event_room_aliases_get_aliases(MatrixEventRoomAliases *matrix_event_room_aliases, int *n_aliases)
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{
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MatrixEventRoomAliasesPrivate *priv;
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g_return_val_if_fail(matrix_event_room_aliases != NULL, NULL);
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priv = matrix_event_room_aliases_get_instance_private(matrix_event_room_aliases);
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if (n_aliases != NULL) {
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*n_aliases = priv->_aliases_len;
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}
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return (const gchar **)priv->_aliases;
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}
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/**
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* matrix_event_room_aliases_set_aliases:
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* @event: a #MatrixEventRoomAliases
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* @aliases: a list of aliases
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* @n_aliases: the length of @aliases
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*
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* Set the list of aliases in @event.
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*/
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void
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matrix_event_room_aliases_set_aliases(MatrixEventRoomAliases *matrix_event_room_aliases, const gchar **aliases, int n_aliases)
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{
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MatrixEventRoomAliasesPrivate *priv;
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g_return_if_fail(matrix_event_room_aliases != NULL);
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priv = matrix_event_room_aliases_get_instance_private(matrix_event_room_aliases);
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for (gint i = 0; i < priv->_aliases_len; i++) {
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g_free(priv->_aliases[i]);
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}
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g_free(priv->_aliases);
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priv->_aliases = g_new(gchar *, n_aliases);
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for (gint i = 0; i < n_aliases; i++) {
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priv->_aliases[i] = g_strdup(aliases[i]);
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}
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}
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static void
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matrix_event_room_aliases_finalize(GObject *gobject)
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{
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MatrixEventRoomAliasesPrivate *priv = matrix_event_room_aliases_get_instance_private(MATRIX_EVENT_ROOM_ALIASES(gobject));
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for (gint i = 0; i < priv->_aliases_len; i++) {
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g_free(priv->_aliases[i]);
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}
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g_free(priv->_aliases);
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G_OBJECT_CLASS(matrix_event_room_aliases_parent_class)->finalize(gobject);
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}
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static void
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matrix_event_room_aliases_get_property(GObject *gobject, guint property_id, GValue *value, GParamSpec *pspec)
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{
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MatrixEventRoomAliases *self = MATRIX_EVENT_ROOM_ALIASES(gobject);
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switch (property_id) {
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case PROP_ALIASES:
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g_value_set_boxed(value, matrix_event_room_aliases_get_aliases(self, NULL));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID(gobject, property_id, pspec);
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break;
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}
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}
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static void
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matrix_event_room_aliases_set_property(GObject *gobject, guint property_id, const GValue *value, GParamSpec *pspec)
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{
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MatrixEventRoomAliases *self = MATRIX_EVENT_ROOM_ALIASES(gobject);
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switch (property_id) {
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case PROP_ALIASES:
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{
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gpointer boxed;
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boxed = g_value_get_boxed(value);
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matrix_event_room_aliases_set_aliases(self, boxed, (boxed == NULL) ? 0 : g_strv_length (boxed));
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break;
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}
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID(gobject, property_id, pspec);
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break;
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}
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}
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static void
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matrix_event_room_aliases_class_init(MatrixEventRoomAliasesClass *klass)
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{
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((MatrixEventBaseClass *)klass)->from_json = matrix_event_room_aliases_real_from_json;
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((MatrixEventBaseClass *)klass)->to_json = matrix_event_room_aliases_real_to_json;
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G_OBJECT_CLASS (klass)->get_property = matrix_event_room_aliases_get_property;
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G_OBJECT_CLASS (klass)->set_property = matrix_event_room_aliases_set_property;
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G_OBJECT_CLASS (klass)->finalize = matrix_event_room_aliases_finalize;
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/**
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* MatrixEventRoomAliases:aliases:
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*
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* A list of room aliases.
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*/
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matrix_event_room_aliases_properties[PROP_ALIASES] = g_param_spec_boxed(
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"aliases", "aliases", "aliases",
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G_TYPE_STRV,
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G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE);
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g_object_class_install_property(G_OBJECT_CLASS(klass), PROP_ALIASES, matrix_event_room_aliases_properties[PROP_ALIASES]);
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}
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static void
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matrix_event_room_aliases_init(MatrixEventRoomAliases *matrix_event_room_aliases)
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{}
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