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//
// Copyright (c) 2022 alandefreitas (alandefreitas@gmail.com)
//
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
//
//[example_suffix_list
/*
The Public Suffix List is intended to
enumerate all domain suffixes controlled
by registrars.
https://publicsuffix.org/list/
*/
#include <boost/url/url.hpp>
#include <boost/url/parse.hpp>
#include <fstream>
#include <iostream>
namespace urls = boost::urls;
int main(int argc, char** argv)
{
if (argc < 2) {
std::cout << argv[0] << "\n";
std::cout << "Usage: suffix_list <url> <suffix_list>\n"
"options:\n"
" <url>: A valid url (required)\n"
" <suffix_list>: File with the public suffix list (default: public_suffix_list.dat)\n"
"examples:\n"
"suffix_list \"www.example.com\" \"public_suffix_list.dat\"\n";
return EXIT_FAILURE;
}
urls::url u = urls::parse_uri(argv[1]).value();
std::string filename =
argc < 3 ?
"public_suffix_list.dat" :
argv[2];
std::ifstream fin(filename);
if (fin.bad())
{
std::cerr << "Cannot open " << filename << "\n";
return EXIT_FAILURE;
}
std::string comment;
std::string suffix;
std::string line;
while (std::getline(fin, line))
{
boost::core::string_view sv(line);
if (sv.starts_with("//") && suffix.empty())
{
comment.append(sv.substr(3));
comment.append("\n");
}
else if (line.empty())
{
if (suffix.empty())
comment.clear();
else
break;
}
else if (u.encoded_host().ends_with(line))
{
suffix = line;
}
}
std::cout <<
"url: \n" << u << "\n\n"
"host: \n" << u.encoded_host() << "\n\n"
"suffix: \n" << suffix << "\n\n"
"detail: \n" << comment << "\n\n";
return EXIT_SUCCESS;
}
//]
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