Import Cobalt 3.11337
diff --git a/src/net/tools/dump_cache/url_utilities.cc b/src/net/tools/dump_cache/url_utilities.cc
new file mode 100644
index 0000000..fe64bd9
--- /dev/null
+++ b/src/net/tools/dump_cache/url_utilities.cc
@@ -0,0 +1,126 @@
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "net/tools/dump_cache/url_utilities.h"
+
+#include "base/logging.h"
+#include "base/string_number_conversions.h"
+#include "base/string_util.h"
+
+namespace net {
+
+std::string UrlUtilities::GetUrlHost(const std::string& url) {
+ size_t b = url.find("//");
+ if (b == std::string::npos)
+ b = 0;
+ else
+ b += 2;
+ size_t next_slash = url.find_first_of('/', b);
+ size_t next_colon = url.find_first_of(':', b);
+ if (next_slash != std::string::npos
+ && next_colon != std::string::npos
+ && next_colon < next_slash) {
+ return std::string(url, b, next_colon - b);
+ }
+ if (next_slash == std::string::npos) {
+ if (next_colon != std::string::npos) {
+ return std::string(url, b, next_colon - b);
+ } else {
+ next_slash = url.size();
+ }
+ }
+ return std::string(url, b, next_slash - b);
+}
+
+std::string UrlUtilities::GetUrlHostPath(const std::string& url) {
+ size_t b = url.find("//");
+ if (b == std::string::npos)
+ b = 0;
+ else
+ b += 2;
+ return std::string(url, b);
+}
+
+std::string UrlUtilities::GetUrlPath(const std::string& url) {
+ size_t b = url.find("//");
+ if (b == std::string::npos)
+ b = 0;
+ else
+ b += 2;
+ b = url.find("/", b);
+ if (b == std::string::npos)
+ return "/";
+
+ size_t e = url.find("#", b+1);
+ if (e != std::string::npos)
+ return std::string(url, b, (e - b));
+ return std::string(url, b);
+}
+
+namespace {
+
+// Parsing states for UrlUtilities::Unescape
+enum UnescapeState {
+ NORMAL, // We are not in the middle of parsing an escape.
+ ESCAPE1, // We just parsed % .
+ ESCAPE2 // We just parsed %X for some hex digit X.
+};
+
+} // namespace
+
+std::string UrlUtilities::Unescape(const std::string& escaped_url) {
+ std::string unescaped_url, escape_text;
+ int escape_value;
+ UnescapeState state = NORMAL;
+ std::string::const_iterator iter = escaped_url.begin();
+ while (iter < escaped_url.end()) {
+ char c = *iter;
+ switch (state) {
+ case NORMAL:
+ if (c == '%') {
+ escape_text.clear();
+ state = ESCAPE1;
+ } else {
+ unescaped_url.push_back(c);
+ }
+ ++iter;
+ break;
+ case ESCAPE1:
+ if (IsHexDigit(c)) {
+ escape_text.push_back(c);
+ state = ESCAPE2;
+ ++iter;
+ } else {
+ // Unexpected, % followed by non-hex chars, pass it through.
+ unescaped_url.push_back('%');
+ state = NORMAL;
+ }
+ break;
+ case ESCAPE2:
+ if (IsHexDigit(c)) {
+ escape_text.push_back(c);
+ bool ok = base::HexStringToInt(escape_text, &escape_value);
+ DCHECK(ok);
+ unescaped_url.push_back(static_cast<unsigned char>(escape_value));
+ state = NORMAL;
+ ++iter;
+ } else {
+ // Unexpected, % followed by non-hex chars, pass it through.
+ unescaped_url.push_back('%');
+ unescaped_url.append(escape_text);
+ state = NORMAL;
+ }
+ break;
+ }
+ }
+ // Unexpected, % followed by end of string, pass it through.
+ if (state == ESCAPE1 || state == ESCAPE2) {
+ unescaped_url.push_back('%');
+ unescaped_url.append(escape_text);
+ }
+ return unescaped_url;
+}
+
+} // namespace net
+
