121 lines
3.0 KiB
C++
121 lines
3.0 KiB
C++
/* This file is part of FediBlock-backend.
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* Copyright © 2020 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 Affero 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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero 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 "rss.hpp"
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#include "time.hpp"
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#include <chrono>
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#include <cstdint>
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#include <cstdlib>
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#include <iostream>
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#include <ostream>
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#include <string>
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#include <string_view>
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#include <vector>
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namespace FediBlock::rss
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{
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using std::getenv;
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using std::ostream;
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using std::string;
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using std::string_view;
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using std::uint8_t;
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using std::chrono::system_clock;
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void write_line(ostream &out, const uint8_t spaces, const string_view rsstag,
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const string_view value)
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{
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string endtag;
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// If there is a space in the rsstag, use only the part up until the space
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// for the ending rsstag.
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const size_t pos = rsstag.find(' ');
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if (pos == string_view::npos)
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{
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endtag = rsstag;
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}
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else
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{
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endtag = rsstag.substr(0, pos);
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}
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out << string(spaces, ' ');
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out << '<' << rsstag << '>' << value << "</" << endtag << ">\n";
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}
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void write_rss(ostream &out, const vector<entry_type> &entries,
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const vector<string> &tags)
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{
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string selfurl;
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char *env{getenv("HTTPS")};
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if (env == nullptr || string(env) != "on")
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{
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selfurl = "http://";
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}
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else
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{
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selfurl = "https://";
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}
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env = getenv("SERVER_NAME");
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if (env != nullptr)
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{
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selfurl += env;
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}
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env = getenv("REQUEST_URI");
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if (env != nullptr)
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{
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selfurl += env;
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}
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constexpr string_view blocklist_url{
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"https://fediblock-test.tastytea.de/blocklist/"};
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constexpr string_view rss_time_format{"%a, %d %b %Y %T %z"};
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out << R"(<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
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<channel>
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)";
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out << R"( <atom:link href=")" + selfurl
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<< R"(" rel="self" type="application/rss+xml"/>)" << '\n';
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write_line(out, 4, "title", "FediBlock: newest entries");
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write_line(out, 4, "link", blocklist_url);
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write_line(out, 4, "description", "FediBlock: Newest entries.");
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write_line(out,
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4,
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"lastBuildDate",
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time::to_string(system_clock::now(), rss_time_format));
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// TODO: <item>s.
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out << " </channel>\n</rss>\n";
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}
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} // namespace FediBlock::rss
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using std::cout;
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using std::string_view;
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using std::vector;
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using namespace FediBlock::rss;
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int main(int argc, char *argv[])
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{
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const vector<string_view> args(argv, argv + argc);
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write_rss(cout, {}, {});
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return 0;
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}
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