net/base/mime_extension_chromeos.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "net/base/mime_extension_chromeos.h"
   6
   7 #include "base/logging.h"
   8 #include "net/base/mime_util.h"
   9
  10 namespace net {
  11 namespace chromeos {
  12
  13 namespace {
  14
  15 static const net::MimeInfo mimetype_extension_mapping[] = {
  16     {"application/epub+zip", "epub"},
  17     {"application/zip", "zip"},
  18     {"text/calendar", "ics"},
  19 };
  20 }  // namespace
  21
  22 // On linux, chrome uses xdgmime to read extension-mimetype database (e.g.
  23 // /usr/share/mime) and estimate mime type from extension. However ChromeOS does
  24 // not have such database in it, we use |mimetype_extension_mapping| to resolve
  25 // mime type on ChromeOS.
  26 bool GetPlatformMimeTypeFromExtension(const base::FilePath::StringType& ext,
  27                                       std::string* mime_type) {
  28   base::FilePath path_ext(ext);
  29   const std::string ext_narrow_str = path_ext.AsUTF8Unsafe();
  30   const char* result =
  31       net::FindMimeType(mimetype_extension_mapping,
  32                         arraysize(mimetype_extension_mapping), ext_narrow_str);
  33   if (result) {
  34     *mime_type = result;
  35     return true;
  36   }
  37
  38   return false;
  39 }
  40 }  // namespace chromeos
  41 }  // namespace net