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Diffstat (limited to '')
-rw-r--r-- | src/base/humanize.network.cc | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/base/humanize.network.cc b/src/base/humanize.network.cc new file mode 100644 index 0000000..2bf390d --- /dev/null +++ b/src/base/humanize.network.cc @@ -0,0 +1,76 @@ +/** + * 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 |