mirror of https://github.com/tstack/lnav.git
77 lines
2.8 KiB
C++
77 lines
2.8 KiB
C++
/**
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* Copyright (c) 2021, Timothy Stack
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Timothy Stack nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "humanize.network.hh"
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#include "config.h"
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#include "pcrepp/pcre2pp.hh"
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namespace humanize {
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namespace network {
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namespace path {
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nonstd::optional<::network::path>
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from_str(string_fragment sf)
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{
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static const auto REMOTE_PATTERN = lnav::pcre2pp::code::from_const(
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"^(?:(?<username>[\\w\\._\\-]+)@)?"
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"(?:\\[(?<ipv6>[^\\]]+)\\]|(?<hostname>[^\\[/:]+)):"
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"(?<path>.*)$");
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static thread_local auto REMOTE_MATCH_DATA
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= REMOTE_PATTERN.create_match_data();
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auto match_res = REMOTE_PATTERN.capture_from(sf)
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.into(REMOTE_MATCH_DATA)
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.matches()
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.ignore_error();
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if (!match_res) {
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return nonstd::nullopt;
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}
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const auto username = REMOTE_MATCH_DATA["username"].map(
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[](auto sf) { return sf.to_string(); });
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const auto ipv6 = REMOTE_MATCH_DATA["ipv6"];
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const auto hostname = REMOTE_MATCH_DATA["hostname"];
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const auto locality_hostname = ipv6 ? ipv6.value() : hostname.value();
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auto path = *REMOTE_MATCH_DATA["path"];
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if (path.empty()) {
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path = string_fragment::from_const(".");
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}
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return ::network::path{
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{username, locality_hostname.to_string(), nonstd::nullopt},
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path.to_string(),
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};
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}
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} // namespace path
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} // namespace network
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} // namespace humanize
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