Support for file listing in privet local filesystem

chrome/browser/local_discovery/storage/path_util.cc

+// Copyright 2014 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 "chrome/browser/local_discovery/storage/path_util.h"
+
+#include "base/logging.h"
+#include "base/strings/utf_string_conversions.h"
+
+namespace local_discovery {
+
+namespace {
+
+std::string UnescapeSlashes(const std::string& str) {
+  std::string output = "";
+  for (size_t i = 0; i < str.length(); i++) {
+    if (str[i] == '$') {
+      i++;
+      switch (str[i]) {
+        case 's':
+          output += '/';
+          break;
+        case 'b':
+          output += '\\';
+        break;
+        case '$':
+          output += '$';
+          break;
+        default:
+          NOTREACHED();
+      }
+    } else {
+      output += str[i];
+    }
+  }
+
+  return output;
+}
+
+const size_t kNumComponentsInBasePrivetPath = 4;
+const int kIndexOfServiceNameInComponentList = 2;
+
+std::string PathStringToString(const base::FilePath::StringType& string) {
+#if defined(OS_WIN)
+  return base::UTF16ToUTF8(string);
+#else
+  return string;
+#endif
+}
+
+}  // namespace
+
+ParsedPrivetPath::ParsedPrivetPath(const base::FilePath& file_path) {
+  std::vector<base::FilePath::StringType> components;
+  file_path.GetComponents(&components);
+  DCHECK(components.size() >= kNumComponentsInBasePrivetPath);
+  service_name = UnescapeSlashes(PathStringToString(
+      components[kIndexOfServiceNameInComponentList]));
+
+
+  for (size_t i = kNumComponentsInBasePrivetPath; i < components.size(); i++) {
+    path += '/' + PathStringToString(components[i]);
+  }
+
+  if (path.empty()) path = "/";
+}
+
+ParsedPrivetPath::~ParsedPrivetPath() {
+}
+
+}  // namespace local_discovery