tomato/toxcore/events/group_password.c

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/* SPDX-License-Identifier: GPL-3.0-or-later
* Copyright © 2023 The TokTok team.
*/
#include "events_alloc.h"
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "../bin_pack.h"
#include "../bin_unpack.h"
#include "../ccompat.h"
#include "../tox.h"
#include "../tox_events.h"
#include "../tox_unpack.h"
/*****************************************************
*
* :: struct and accessors
*
*****************************************************/
struct Tox_Event_Group_Password {
uint32_t group_number;
uint8_t *password;
uint32_t password_length;
};
non_null()
static void tox_event_group_password_construct(Tox_Event_Group_Password *group_password)
{
*group_password = (Tox_Event_Group_Password) {
0
};
}
non_null()
static void tox_event_group_password_destruct(Tox_Event_Group_Password *group_password)
{
free(group_password->password);
}
non_null()
static void tox_event_group_password_set_group_number(Tox_Event_Group_Password *group_password,
uint32_t group_number)
{
assert(group_password != nullptr);
group_password->group_number = group_number;
}
uint32_t tox_event_group_password_get_group_number(const Tox_Event_Group_Password *group_password)
{
assert(group_password != nullptr);
return group_password->group_number;
}
non_null()
static bool tox_event_group_password_set_password(Tox_Event_Group_Password *group_password,
const uint8_t *password, uint32_t password_length)
{
assert(group_password != nullptr);
if (group_password->password != nullptr) {
free(group_password->password);
group_password->password = nullptr;
group_password->password_length = 0;
}
group_password->password = (uint8_t *)malloc(password_length);
if (group_password->password == nullptr) {
return false;
}
memcpy(group_password->password, password, password_length);
group_password->password_length = password_length;
return true;
}
size_t tox_event_group_password_get_password_length(const Tox_Event_Group_Password *group_password)
{
assert(group_password != nullptr);
return group_password->password_length;
}
const uint8_t *tox_event_group_password_get_password(const Tox_Event_Group_Password *group_password)
{
assert(group_password != nullptr);
return group_password->password;
}
non_null()
static bool tox_event_group_password_pack(
const Tox_Event_Group_Password *event, Bin_Pack *bp)
{
assert(event != nullptr);
return bin_pack_array(bp, 2)
&& bin_pack_u32(bp, TOX_EVENT_GROUP_PASSWORD)
&& bin_pack_array(bp, 2)
&& bin_pack_u32(bp, event->group_number)
&& bin_pack_bin(bp, event->password, event->password_length);
}
non_null()
static bool tox_event_group_password_unpack(
Tox_Event_Group_Password *event, Bin_Unpack *bu)
{
assert(event != nullptr);
if (!bin_unpack_array_fixed(bu, 2, nullptr)) {
return false;
}
return bin_unpack_u32(bu, &event->group_number)
&& bin_unpack_bin(bu, &event->password, &event->password_length);
}
/*****************************************************
*
* :: add/clear/get
*
*****************************************************/
non_null()
static Tox_Event_Group_Password *tox_events_add_group_password(Tox_Events *events)
{
if (events->group_password_size == UINT32_MAX) {
return nullptr;
}
if (events->group_password_size == events->group_password_capacity) {
const uint32_t new_group_password_capacity = events->group_password_capacity * 2 + 1;
Tox_Event_Group_Password *new_group_password = (Tox_Event_Group_Password *)
realloc(
events->group_password,
new_group_password_capacity * sizeof(Tox_Event_Group_Password));
if (new_group_password == nullptr) {
return nullptr;
}
events->group_password = new_group_password;
events->group_password_capacity = new_group_password_capacity;
}
Tox_Event_Group_Password *const group_password =
&events->group_password[events->group_password_size];
tox_event_group_password_construct(group_password);
++events->group_password_size;
return group_password;
}
void tox_events_clear_group_password(Tox_Events *events)
{
if (events == nullptr) {
return;
}
for (uint32_t i = 0; i < events->group_password_size; ++i) {
tox_event_group_password_destruct(&events->group_password[i]);
}
free(events->group_password);
events->group_password = nullptr;
events->group_password_size = 0;
events->group_password_capacity = 0;
}
uint32_t tox_events_get_group_password_size(const Tox_Events *events)
{
if (events == nullptr) {
return 0;
}
return events->group_password_size;
}
const Tox_Event_Group_Password *tox_events_get_group_password(const Tox_Events *events, uint32_t index)
{
assert(index < events->group_password_size);
assert(events->group_password != nullptr);
return &events->group_password[index];
}
bool tox_events_pack_group_password(const Tox_Events *events, Bin_Pack *bp)
{
const uint32_t size = tox_events_get_group_password_size(events);
for (uint32_t i = 0; i < size; ++i) {
if (!tox_event_group_password_pack(tox_events_get_group_password(events, i), bp)) {
return false;
}
}
return true;
}
bool tox_events_unpack_group_password(Tox_Events *events, Bin_Unpack *bu)
{
Tox_Event_Group_Password *event = tox_events_add_group_password(events);
if (event == nullptr) {
return false;
}
return tox_event_group_password_unpack(event, bu);
}
/*****************************************************
*
* :: event handler
*
*****************************************************/
void tox_events_handle_group_password(Tox *tox, uint32_t group_number, const uint8_t *password, size_t length,
void *user_data)
{
Tox_Events_State *state = tox_events_alloc(user_data);
assert(state != nullptr);
if (state->events == nullptr) {
return;
}
Tox_Event_Group_Password *group_password = tox_events_add_group_password(state->events);
if (group_password == nullptr) {
state->error = TOX_ERR_EVENTS_ITERATE_MALLOC;
return;
}
tox_event_group_password_set_group_number(group_password, group_number);
tox_event_group_password_set_password(group_password, password, length);
}