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/**
* matrix-sync.c: Handle the 'sync' loop
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include "matrix-sync.h"
/* json-glib */
#include <json-glib/json-glib.h>
/* libpurple */
#include "connection.h"
#include "conversation.h"
#include "debug.h"
/* libmatrix */
#include "matrix-json.h"
#include "matrix-room.h"
typedef struct _RoomEventParserData {
PurpleConversation *conv;
JsonObject *event_map;
gboolean state_events;
} RoomEventParserData;
/**
* handle an event for a room
*
* @param state the complete state array (unused)
* @param state_id position within the array (unused)
* @param state_entry the event id to be handled
* @param user_data a RoomEventParserData
*/
static void _parse_room_event(JsonArray *event_array, guint event_idx,
JsonNode *event, gpointer user_data)
{
RoomEventParserData *data = user_data;
PurpleConversation *conv = data->conv;
JsonObject *event_map = data->event_map;
JsonObject *json_event_obj;
const gchar *event_id;
event_id = matrix_json_node_get_string(event);
if(event_id == NULL) {
purple_debug_warning("prplmatrix", "non-string event_id");
return;
}
json_event_obj = matrix_json_object_get_object_member(
event_map, event_id);
if(json_event_obj == NULL) {
purple_debug_warning("prplmatrix", "unknown event_id %s\n", event_id);
return;
}
if(data->state_events)
matrix_room_handle_state_event(conv, event_id, json_event_obj);
else
matrix_room_handle_timeline_event(conv, event_id, json_event_obj);
}
/**
* parse the list of events in a sync response
*/
static void _parse_room_event_array(PurpleConversation *conv, JsonArray *events,
JsonObject* event_map, gboolean state_events)
{
RoomEventParserData data = {conv, event_map, state_events};
json_array_foreach_element(events, _parse_room_event, &data);
}
static PurpleChat *_ensure_blist_entry(PurpleAccount *acct,
const gchar *room_id)
{
GHashTable *comp;
PurpleGroup *group;
PurpleChat *chat = purple_blist_find_chat(acct, room_id);
if (chat)
return chat;
group = purple_find_group("Matrix");
if (!group) {
group = purple_group_new("Matrix");
purple_blist_add_group(group, NULL);
}
comp = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_free);
g_hash_table_insert(comp, PRPL_CHAT_INFO_ROOM_ID, g_strdup(room_id));
/* we set the alias to the room id initially, then change it to
* something more user-friendly later.
*/
chat = purple_chat_new(acct, room_id, comp);
/* encourage matrix chats to be persistent by default. This is clearly a
* hack :/ */
purple_blist_node_set_bool(&chat->node, "gtk-persistent", TRUE);
purple_blist_add_chat(chat, group, NULL);
return chat;
}
/**
* handle a room within the sync response
*/
static void matrix_sync_room(const gchar *room_id,
JsonObject *room_data, PurpleConnection *pc)
{
JsonObject *state_object, *timeline_object, *event_map;
JsonArray *state_array, *timeline_array;
PurpleConversation *conv;
gboolean initial_sync = FALSE;
/* ensure we have an entry in the buddy list for this room.
* TODO: We should only do this if the user is actually *in* the room. */
_ensure_blist_entry(pc->account, room_id);
conv = purple_find_conversation_with_account(
PURPLE_CONV_TYPE_CHAT, room_id, pc->account);
if(conv == NULL) {
conv = matrix_room_create_conversation(pc, room_id);
initial_sync = TRUE;
}
event_map = matrix_json_object_get_object_member(room_data, "event_map");
/* parse the room state */
state_object = matrix_json_object_get_object_member(room_data, "state");
state_array = matrix_json_object_get_array_member(state_object, "events");
if(state_array != NULL)
_parse_room_event_array(conv, state_array, event_map, TRUE);
matrix_room_complete_state_update(conv, !initial_sync);
/* parse the timeline events */
timeline_object = matrix_json_object_get_object_member(
room_data, "timeline");
timeline_array = matrix_json_object_get_array_member(
timeline_object, "events");
if(timeline_array != NULL)
_parse_room_event_array(conv, timeline_array, event_map, FALSE);
}
/**
* handle the results of the sync request
*/
void matrix_sync_parse(PurpleConnection *pc, JsonNode *body,
const gchar **next_batch)
{
JsonObject *rootObj;
JsonObject *rooms;
JsonObject *joined_rooms;
GList *room_ids, *elem;
rootObj = matrix_json_node_get_object(body);
rooms = matrix_json_object_get_object_member(rootObj, "rooms");
joined_rooms = matrix_json_object_get_object_member(rooms, "joined");
*next_batch = matrix_json_object_get_string_member(rootObj, "next_batch");
if(joined_rooms == NULL) {
purple_debug_warning("matrixprpl", "didn't find joined rooms list\n");
return;
}
room_ids = json_object_get_members(joined_rooms);
for(elem = room_ids; elem; elem = elem->next) {
const gchar *room_id = elem->data;
JsonObject *room_data = matrix_json_object_get_object_member(
joined_rooms, room_id);
purple_debug_info("matrixprpl", "Syncing room %s", room_id);
matrix_sync_room(room_id, room_data, pc);
}
g_list_free(room_ids);
}
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