975c5ad5df
- Replace raw socket implementation with Boost.Asio in Proxy class - Add proper SSL/TLS support using Boost.Asio SSL - Improve error handling with more specific exceptions - Modernize Utils class with C++17 features like string_view - Refactor Windows service implementation with smart pointers and exception handling - Enhance hostname resolution with Boost.Asio resolver
91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
/**
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* hermes antispam proxy
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* Copyright (C) 2006, 2007 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
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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 2 of the License
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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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* @author Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
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*/
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#ifndef UTILS_H
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#define UTILS_H
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#include "hermes.h"
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#include <string>
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#include <string_view>
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#include <sstream>
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#include <iostream>
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#include <dirent.h>
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#include <time.h>
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#ifndef WIN32
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#include <pwd.h>
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#include <grp.h>
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#endif //WIN32
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#include "Database.h"
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#include "Socket.h"
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using std::string;
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using std::stringstream;
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using std::list;
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#ifdef WIN32
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#define sleep(x) Sleep(1000*(x))
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#endif //WIN32
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/*#ifndef MAX
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#define MAX(x,y) (((x)>(y))?(x):(y))
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#endif //MAX*/
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/**
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* this class implements common utilities
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*/
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class Utils
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{
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public:
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//string utilities
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static string strtolower(std::string_view);
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static string trim(std::string_view);
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static string inttostr(int);
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static string ulongtostr(unsigned long);
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//email-related utilities
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static string getmail(const string&);
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static string getdomain(const string&);
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static string reverseip(const string&);
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//spam-related utilities (TODO: move to a different class)
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static bool greylist(const string& dbfile, string& ip, string& p_from, string& p_to);
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static bool listed_on_dns_lists(const list<string>& dns_domains, unsigned char percentage, const string& ip);
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static bool whitelisted(const string& dbfile, string& ip);
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static bool blacklisted(const string& dbfile, string& ip, string& to);
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#ifndef WIN32
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//posix-utils
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static int usertouid(const string& user);
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static int grouptogid(const string& groupname);
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#endif //WIN32
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//misc
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static string get_canonical_filename(const string& file);
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static bool file_exists(const string& file);
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static bool dir_exists(const string& dir);
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static string errnotostrerror(int);
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static string rfc2821_date(time_t *timestamp=NULL);
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static string gethostname();
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static void write_pid(const string& file, pid_t pid);
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static string gethostname(int socket);
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};
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#endif //UTILS_H
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