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