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improve code organisation, add .rc file

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Syping 2024-02-26 11:33:39 +01:00
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commit 87961fe611
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src/settings.cpp
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/*****************************************************************************
* dtranslatebot Discord Translate Bot
* Copyright (C) 2023-2024 Syping
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* This software is provided as-is, no warranties are given to you, we are not
* responsible for anything with use of the software, you are self responsible.
*****************************************************************************/
#include <dpp/json.h>
#include <fstream>
#include <iostream>
#include "database_file.h"
#include "settings.h"
#include "translator_libretranslate.h"
using namespace bot::settings;
void process_database_channels(std::shared_ptr<bot::database::database> database, bot::settings::guild *guild, std::vector<dpp::snowflake> *webhookIds)
{
const std::vector<dpp::snowflake> db_channels = database->get_channels(guild->id);
for (auto db_channel_id = db_channels.begin(); db_channel_id != db_channels.end(); db_channel_id++) {
bool channel_found = false;
for (auto channel = guild->channel.begin(); channel != guild->channel.end(); channel++) {
if (channel->id == *db_channel_id) {
const bot::settings::channel db_channel = database->get_channel(guild->id, channel->id);
if (!db_channel.source.empty())
channel->source = db_channel.source;
for (auto db_target = db_channel.targets.begin(); db_target != db_channel.targets.end(); db_target++) {
bool target_found = false;
for (auto target = channel->targets.begin(); target != channel->targets.end(); target++) {
if (target->target == db_target->target) {
target->webhook = db_target->webhook;
webhookIds->push_back(db_target->webhook.id);
target_found = true;
break;
}
}
if (!target_found) {
channel->targets.push_back(*db_target);
webhookIds->push_back(db_target->webhook.id);
}
}
channel_found = true;
break;
}
}
if (!channel_found) {
const bot::settings::channel db_channel = database->get_channel(guild->id, *db_channel_id);
guild->channel.push_back(db_channel);
for (auto db_target = db_channel.targets.begin(); db_target != db_channel.targets.end(); db_target++)
webhookIds->push_back(db_target->webhook.id);
}
}
}
void process_database(std::shared_ptr<bot::database::database> database, std::vector<guild> *guilds, std::vector<dpp::snowflake> *webhookIds)
{
std::cout << "[Launch] Loading database..." << std::endl;
const std::vector<dpp::snowflake> db_guilds = database->get_guilds();
for (auto db_guild_id = db_guilds.begin(); db_guild_id != db_guilds.end(); db_guild_id++) {
bool guild_found = false;
for (auto guild = guilds->begin(); guild != guilds->end(); guild++) {
if (guild->id == *db_guild_id) {
process_database_channels(database, &*guild, webhookIds);
guild_found = true;
break;
}
}
if (!guild_found) {
bot::settings::guild guild;
guild.id = *db_guild_id;
process_database_channels(database, &guild, webhookIds);
guilds->push_back(std::move(guild));
}
}
}
void process_guild_settings(const dpp::json &json, std::vector<guild> *guilds, std::vector<dpp::snowflake> *webhookIds)
{
for (auto json_guild = json.begin(); json_guild != json.end(); json_guild++) {
if (json_guild->is_object()) {
guild guild;
auto json_guild_id = json_guild->find("id");
if (json_guild_id != json_guild->end()) {
if (json_guild_id->is_number())
guild.id = static_cast<uint64_t>(*json_guild_id);
else if (json_guild_id->is_string())
guild.id = std::stoull(std::string(*json_guild_id));
else
throw std::invalid_argument("Guild id is not a number or a string");
}
else
guild.id = std::stoull(json_guild.key());
for (auto json_channel = json_guild->begin(); json_channel != json_guild->end(); json_channel++) {
if (json_channel->is_object()) {
channel channel;
auto json_channel_id = json_channel->find("id");
if (json_channel_id != json_channel->end()) {
if (json_channel_id->is_number())
channel.id = static_cast<uint64_t>(*json_channel_id);
else if (json_channel_id->is_string())
channel.id = std::stoull(std::string(*json_channel_id));
else
throw std::invalid_argument("Channel id is not a number or a string");
}
else
channel.id = std::stoull(json_channel.key());
auto json_channel_source = json_channel->find("source");
if (json_channel_source != json_channel->end())
channel.source = *json_channel_source;
auto json_channel_target = json_channel->find("target");
if (json_channel_target != json_channel->end()) {
if (json_channel_target->is_string()) {
target target;
target.target = *json_channel_target;
target.webhook = dpp::webhook(json_channel->at("webhook"));
webhookIds->push_back(target.webhook.id);
channel.targets.push_back(std::move(target));
}
else if (json_channel_target->is_object()) {
for (auto json_target = json_channel_target->begin(); json_target != json_channel_target->end(); json_target++) {
target target;
target.target = json_target.key();
target.webhook = dpp::webhook(*json_target);
webhookIds->push_back(target.webhook.id);
channel.targets.push_back(std::move(target));
}
}
}
if (!channel.source.empty() && !channel.targets.empty())
guild.channel.push_back(std::move(channel));
}
}
guilds->push_back(std::move(guild));
}
}
}
void process_preflang_settings(const dpp::json &json, std::vector<std::string> *preferred_langs)
{
for (auto json_preferred_lang = json.begin(); json_preferred_lang != json.end(); json_preferred_lang++) {
if (std::distance(json.begin(), json_preferred_lang) >= 25) {
std::cerr << "[Error] Value preferred_lang is limited to 25 languages" << std::endl;
break;
}
preferred_langs->push_back(*json_preferred_lang);
}
}
void process_user_settings(const dpp::json &json, uint16_t *avatar_size)
{
auto json_avatar_size = json.find("avatar_size");
if (json_avatar_size != json.end()) {
*avatar_size = *json_avatar_size;
if (*avatar_size < 16)
*avatar_size = 16;
else if (*avatar_size > 4096)
*avatar_size = 4096;
}
}
void process_url(const std::string &url, translator *translator)
{
std::string_view url_v = url;
if (url_v.substr(0, 7) == "http://") {
translator->tls = false;
if (!translator->port)
translator->port = 80;
url_v = url_v.substr(7);
}
else if (url_v.substr(0, 8) == "https://") {
translator->tls = true;
if (!translator->port)
translator->port = 443;
url_v = url_v.substr(8);
}
else {
translator->tls = false;
if (!translator->port)
translator->port = 80;
}
auto slash_pos = url_v.find_first_of('/');
if (slash_pos != std::string_view::npos) {
translator->url = url_v.substr(slash_pos);
url_v = url_v.substr(0, slash_pos);
}
else {
translator->url = "/";
url_v = url_v.substr(0, slash_pos);
}
// We don't have IPv6 support here yet
auto colon_pos = url_v.find_last_of(':');
if (colon_pos != std::string_view::npos) {
translator->hostname = url_v.substr(0, colon_pos);
const int port = std::stoi(std::string(url_v.substr(colon_pos + 1)));
if (port > 0 && port < 65536)
translator->port = static_cast<uint16_t>(port);
else
throw std::invalid_argument("Port is out of range");
}
else {
translator->hostname = url_v;
}
}
bool process_translator_settings(const dpp::json &json, translator *translator)
{
if (!json.is_object()) {
std::cerr << "[Error] Value translator needs to be a object" << std::endl;
return false;
}
auto json_translate_hostname = json.find("hostname");
if (json_translate_hostname != json.end())
translator->hostname = *json_translate_hostname;
else
translator->hostname = {};
auto json_translate_tls = json.find("tls");
if (json_translate_tls != json.end())
translator->tls = *json_translate_tls;
else
translator->tls = false;
auto json_translate_port = json.find("port");
if (json_translate_port != json.end())
translator->port = *json_translate_port;
else
translator->port = 0;
auto json_translate_url = json.find("url");
if (json_translate_url == json.end()) {
std::cerr << "[Error] Value url not found in translator object" << std::endl;
return false;
}
if (translator->hostname.empty()) {
process_url(*json_translate_url, translator);
}
else {
translator->url = *json_translate_url;
}
auto json_translate_apiKey = json.find("apiKey");
if (json_translate_apiKey != json.end())
translator->apiKey = *json_translate_apiKey;
else
translator->apiKey.clear();
return true;
}
void settings::add_channel(const channel &channel, dpp::snowflake guild_id)
{
const std::lock_guard<std::recursive_mutex> guard(m_mutex);
for (auto guild = m_guilds.begin(); guild != m_guilds.end(); guild++) {
if (guild->id == guild_id) {
guild->channel.push_back(channel);
return;
}
}
// We will create the guild structure when it is not in memory
m_guilds.push_back({ guild_id, { channel } });
}
bool settings::add_target(const target &target, dpp::snowflake guild_id, dpp::snowflake channel_id)
{
const std::lock_guard<std::recursive_mutex> guard(m_mutex);
for (auto guild = m_guilds.begin(); guild != m_guilds.end(); guild++) {
if (guild->id == guild_id) {
for (auto channel = guild->channel.begin(); channel != guild->channel.end(); channel++) {
if (channel->id == channel_id) {
channel->targets.push_back(target);
return true;
}
}
return false;
}
}
return false;
}
void settings::add_translatebot_webhook(dpp::snowflake webhook_id)
{
const std::lock_guard<std::recursive_mutex> guard(m_mutex);
m_webhookIds.push_back(webhook_id);
}
void settings::erase_translatebot_webhook(dpp::snowflake webhook_id)
{
const std::lock_guard<std::recursive_mutex> guard(m_mutex);
auto webhook_it = std::find(m_webhookIds.begin(), m_webhookIds.end(), webhook_id);
if (webhook_it != m_webhookIds.end())
m_webhookIds.erase(webhook_it);
}
uint16_t settings::avatar_size()
{
const std::lock_guard<std::recursive_mutex> guard(m_mutex);
return m_avatarSize;
}
channel* settings::get_channel(guild *guild, dpp::snowflake channel_id)
{
for (auto channel = guild->channel.begin(); channel != guild->channel.end(); channel++) {
if (channel->id == channel_id)
return &*channel;
}
return nullptr;
}
channel* settings::get_channel(dpp::snowflake guild_id, dpp::snowflake channel_id)
{
if (!m_externallyLockedCount) {
#ifndef NDEBUG
std::cerr << "[Debug] settings::get_channel(dpp::snowflake, dpp::snowflake) have being called without settings being locked." << std::endl;
#endif
return nullptr;
}
for (auto guild = m_guilds.begin(); guild != m_guilds.end(); guild++) {
if (guild->id == guild_id) {
for (auto channel = guild->channel.begin(); channel != guild->channel.end(); channel++) {
if (channel->id == channel_id)
return &*channel;
}
return nullptr;
}
}
return nullptr;
}
guild* settings::get_guild(dpp::snowflake guild_id)
{
if (!m_externallyLockedCount) {
#ifndef NDEBUG
std::cerr << "[Debug] settings::get_guild(dpp::snowflake) have being called without settings being locked." << std::endl;
#endif
return nullptr;
}
for (auto guild = m_guilds.begin(); guild != m_guilds.end(); guild++) {
if (guild->id == guild_id)
return &*guild;
}
return nullptr;
}
target* settings::get_target(dpp::snowflake guild_id, dpp::snowflake channel_id, const std::string &target)
{
if (!m_externallyLockedCount) {
#ifndef NDEBUG
std::cerr << "[Debug] settings::get_target(dpp::snowflake, dpp::snowflake, const std::string&) have being called without settings being locked." << std::endl;
#endif
return nullptr;
}
for (auto guild = m_guilds.begin(); guild != m_guilds.end(); guild++) {
if (guild->id == guild_id) {
for (auto channel = guild->channel.begin(); channel != guild->channel.end(); channel++) {
if (channel->id == channel_id) {
for (auto _target = channel->targets.begin(); _target != channel->targets.end(); _target++) {
if (_target->target == target)
return &*_target;
}
return nullptr;
}
}
return nullptr;
}
}
return nullptr;
}
target* settings::get_target(channel *channel, const std::string &target)
{
for (auto _target = channel->targets.begin(); _target != channel->targets.end(); _target++) {
if (_target->target == target)
return &*_target;
}
return nullptr;
}
const target* settings::get_target(const channel *channel, const std::string &target)
{
for (auto _target = channel->targets.begin(); _target != channel->targets.end(); _target++) {
if (_target->target == target)
return &*_target;
}
return nullptr;
}
const std::vector<std::string> settings::preferred_languages() const
{
const std::lock_guard<std::recursive_mutex> guard(m_mutex);
return m_prefLangs;
}
std::shared_ptr<bot::database::database> settings::get_database() const
{
const std::lock_guard<std::recursive_mutex> guard(m_mutex);
return m_database;
}
std::unique_ptr<bot::translator::translator> settings::get_translator() const
{
const std::lock_guard<std::recursive_mutex> guard(m_mutex);
return std::make_unique<bot::translator::libretranslate>(m_translator.hostname, m_translator.port, m_translator.url, m_translator.tls, m_translator.apiKey);
}
const std::string settings::token() const
{
const std::lock_guard<std::recursive_mutex> guard(m_mutex);
return m_token;
}
bool settings::is_translatebot(dpp::snowflake webhook_id) const
{
const std::lock_guard<std::recursive_mutex> guard(m_mutex);
for (auto id = m_webhookIds.begin(); id != m_webhookIds.end(); id++) {
if (*id == webhook_id)
return true;
}
return false;
}
void settings::lock()
{
m_mutex.lock();
m_externallyLockedCount++;
}
bool settings::parse(const std::string &data, bool initialize)
{
try {
dpp::json json;
try {
json = dpp::json::parse(data);
}
catch (const std::exception &exception) {
std::cerr << "[Exception] " << exception.what() << std::endl;
std::cerr << "[Error] Exception while parsing JSON" << std::endl;
return false;
}
const std::lock_guard<std::recursive_mutex> guard(m_mutex);
auto json_token = json.find("token");
if (json_token != json.end())
m_token = *json_token;
else if (char *token = getenv("DTRANSLATEBOT_TOKEN"))
m_token = token;
if (m_token.empty()) {
std::cerr << "[Error] Discord Bot Token is not configured" << std::endl;
return false;
}
std::filesystem::path storage_path;
auto json_storage = json.find("storage");
if (json_storage != json.end())
storage_path = std::string(*json_storage);
else if (char *storagepath = getenv("DTRANSLATEBOT_STORAGE"))
storage_path = storagepath;
if (storage_path.empty())
storage_path = std::filesystem::current_path();
m_database = std::make_shared<bot::database::file>(storage_path);
auto json_translator = json.find("translator");
if (json_translator == json.end()) {
std::cerr << "[Error] Value translator not found" << std::endl;
return false;
}
if (!process_translator_settings(*json_translator, &m_translator))
return false;
auto json_guilds = json.find("guilds");
if (json_guilds != json.end() && json_guilds->is_object())
process_guild_settings(*json_guilds, &m_guilds, &m_webhookIds);
auto json_preflangs = json.find("preferred_lang");
if (json_preflangs != json.end() && json_preflangs->is_array())
process_preflang_settings(*json_preflangs, &m_prefLangs);
auto json_user = json.find("user");
if (json_user != json.end() && json_user->is_object())
process_user_settings(*json_user, &m_avatarSize);
process_database(m_database, &m_guilds, &m_webhookIds);
return true;
}
catch (const std::exception &exception) {
std::cerr << "[Exception] " << exception.what() << std::endl;
}
return false;
}
bool settings::parse_file(const std::string &filename, bool initialize)
{
std::ifstream ifs(filename, std::ios::in | std::ios::binary);
if (!ifs.is_open()) {
std::cerr << "[Error] Failed to open JSON configuration file located at " << filename << std::endl;
return false;
}
std::string sdata(std::istreambuf_iterator<char>{ifs}, {});
ifs.close();
return parse(sdata, initialize);
}
void settings::unlock()
{
m_mutex.unlock();
m_externallyLockedCount--;
}