Adding upstream version 0.11.2.upstream/0.11.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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