telodendria/src/Filter.c
LDA 55652eaa15 [MOD] Make a dedicated FilterDecode function
I'll need to parse the JSON from a string, however, which means a stream
abstraction for being able to read from a string(or just a raw
bytestream). Guess I'll have to reimplement that away...
2024-07-23 12:27:52 +02:00

144 lines
3.4 KiB
C

/*
* Copyright (C) 2022-2024 Jordan Bancino <@jordan:bancino.net> with
* other valuable contributors. See CONTRIBUTORS.txt for the full list.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Filter.h>
#include <Cytoplasm/Memory.h>
#include <Cytoplasm/Json.h>
#include <Cytoplasm/Str.h>
#include <string.h>
#include <Schema/Filter.h>
bool
IsRoomFiltered(Filter *filter, char *roomID)
{
size_t i, count;
if (!filter || !roomID)
{
return false;
}
count = ArraySize(filter->room.not_rooms);
for (i = 0; i < count; i++)
{
char *notRoom = ArrayGet(filter->room.not_rooms, i);
if (StrEquals(roomID, notRoom))
{
return true;
}
}
count = ArraySize(filter->room.rooms);
if (count)
{
for (i = 0; i < count; i++)
{
char *room = ArrayGet(filter->room.rooms, i);
if (StrEquals(roomID, room))
{
return false;
}
}
return true;
}
return false;
}
HashMap *
FilterApply(Filter * filter, HashMap * event)
{
HashMap *copy;
char *sender, *room;
if (!event)
{
return NULL;
}
if (!filter)
{
/* Do NOT filter anything out */
return JsonDuplicate(event);
}
sender = JsonValueAsString(HashMapGet(event, "sender"));
room = JsonValueAsString(HashMapGet(event, "room_id"));
if (IsRoomFiltered(filter, room))
{
return NULL;
}
copy = JsonDuplicate(event);
(void) sender;
return copy;
}
Filter *
FilterDecode(Db *db, char *user, char *filterStr)
{
Filter *ret;
DbRef *filterRef;
HashMap *filterObj;
if (!db || !user || !filterStr)
{
return NULL;
}
if (*filterStr != '{')
{
char *err; /* TODO: use error status somewhere... */
filterRef = DbLock(db, 3, "filters", user, filterStr);
filterObj = DbJson(filterRef);
ret = Malloc(sizeof(*ret));
memset(ret, 0, sizeof(*ret));
if (!FilterFromJson(filterObj, ret, &err))
{
DbUnlock(db, filterRef);
Free(ret);
return NULL;
}
DbUnlock(db, filterRef);
(void) err;
return ret;
}
/* TODO: Decode JSON here... */
return NULL;
}
void
FilterDestroy(Filter *filter)
{
if (!filter)
{
return;
}
FilterFree(filter);
Free(filter);
}