146 lines
4.4 KiB
C++
146 lines
4.4 KiB
C++
/* This file is part of expandurl-mastodon.
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* Copyright © 2018, 2019 tastytea <tastytea@tastytea.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <iostream>
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#include <chrono>
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#include <csignal>
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#include <regex>
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#include <numeric>
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#include <syslog.h>
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#include <unistd.h> // getuid()
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#include <curlpp/cURLpp.hpp>
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#include "configjson.hpp"
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#include "expandurl-mastodon.hpp"
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using namespace Mastodon;
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using std::string;
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bool running = true;
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ConfigJSON configfile("expandurl-mastodon.json");
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void signal_handler(int signum)
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{
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switch (signum)
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{
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case SIGINT:
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case SIGTERM:
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if (!running)
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{
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syslog(LOG_NOTICE, "Forced close.");
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exit(signum);
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}
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running = false;
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syslog(LOG_NOTICE, "Received signal %d, closing...", signum);
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std::cerr << "Received signal " << signum << ", closing...\n";
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break;
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default:
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break;
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}
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}
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int main()
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{
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signal(SIGINT, signal_handler);
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signal(SIGTERM, signal_handler);
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if (!configfile.read())
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{
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syslog(LOG_WARNING, "Could not open %s.",
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configfile.get_filepath().c_str());
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}
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init_replacements();
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curlpp::initialize();
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openlog("expandurl-mastodon", LOG_CONS | LOG_NDELAY | LOG_PID, LOG_LOCAL1);
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syslog(LOG_NOTICE, "Program started by user %d", getuid());
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Listener listener;
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listener.start();
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std::vector<Easy::Notification> new_messages = listener.catchup();
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while (running)
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{
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std::this_thread::sleep_for(std::chrono::seconds(2));
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if (!listener.stillrunning())
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{
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listener.stop();
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syslog(LOG_DEBUG, "Reestablishing connection...");
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listener.start();
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new_messages = listener.catchup();
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}
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// Only get new messages if we don't have to catchup
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if (new_messages.size() == 0)
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{
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new_messages = listener.get_new_messages();
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}
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for (Easy::Notification ¬if : new_messages)
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{
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syslog(LOG_DEBUG, "new message");
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const string id = listener.get_parent_id(notif);
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syslog(LOG_DEBUG, "in_reply_to_id: %s", id.c_str());
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Easy::Status status;
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if (!id.empty())
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{
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status = listener.get_status(id);
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if (status.valid())
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{
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const std::vector<string> vec = get_urls(status.content());
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const string message =
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std::accumulate(vec.begin(), vec.end(), string(),
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[](const string &s1, const string s2)
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{ return s1 + s2 + " \n"; });
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if (!message.empty())
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{
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if (!listener.send_reply(notif.status(), message))
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{
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syslog(LOG_ERR, "could not send reply to %s",
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id.c_str());
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}
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}
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else
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{
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listener.send_reply(notif.status(),
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"I couldn't find an URL in the message you "
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"replied to. 😞");
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}
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}
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else
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{
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listener.send_reply(notif.status(),
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"I couldn't get the message you replied to. 😞");
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}
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}
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else
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{
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listener.send_reply(notif.status(),
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"I couldn't find the message you replied to. 😞 \n"
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"Maybe the federation is a bit wonky at the moment.");
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}
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}
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new_messages.clear();
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}
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listener.stop();
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closelog();
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curlpp::terminate();
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return 0;
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}
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