mojo/shell/filename_util.cc

   1 // Copyright 2014 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 "mojo/shell/filename_util.h"
   6
   7 #include "base/files/file_path.h"
   8 #include "base/path_service.h"
   9 #include "base/strings/string_util.h"
  10 #include "url/gurl.h"
  11 #include "url/url_canon_internal.h"
  12 #include "url/url_util.h"
  13
  14 namespace mojo {
  15
  16 // Prefix to prepend to get a file URL.
  17 static const base::FilePath::CharType kFileURLPrefix[] =
  18     FILE_PATH_LITERAL("file://");
  19
  20 GURL FilePathToFileURL(const base::FilePath& path) {
  21   // Produce a URL like "file:///C:/foo" for a regular file, or
  22   // "file://///server/path" for UNC. The URL canonicalizer will fix up the
  23   // latter case to be the canonical UNC form: "file://server/path"
  24   base::FilePath::StringType url_string(kFileURLPrefix);
  25   if (!path.IsAbsolute()) {
  26     base::FilePath current_dir;
  27     PathService::Get(base::DIR_CURRENT, &current_dir);
  28     url_string.append(current_dir.value());
  29     url_string.push_back(base::FilePath::kSeparators[0]);
  30   }
  31   url_string.append(path.value());
  32
  33   // Now do replacement of some characters. Since we assume the input is a
  34   // literal filename, anything the URL parser might consider special should
  35   // be escaped here.
  36
  37   // This must be the first substitution since others will introduce percents as
  38   // the escape character
  39   ReplaceSubstringsAfterOffset(
  40       &url_string, 0, FILE_PATH_LITERAL("%"), FILE_PATH_LITERAL("%25"));
  41
  42   // A semicolon is supposed to be some kind of separator according to RFC 2396.
  43   ReplaceSubstringsAfterOffset(
  44       &url_string, 0, FILE_PATH_LITERAL(";"), FILE_PATH_LITERAL("%3B"));
  45
  46   ReplaceSubstringsAfterOffset(
  47       &url_string, 0, FILE_PATH_LITERAL("#"), FILE_PATH_LITERAL("%23"));
  48
  49   ReplaceSubstringsAfterOffset(
  50       &url_string, 0, FILE_PATH_LITERAL("?"), FILE_PATH_LITERAL("%3F"));
  51
  52 #if defined(OS_POSIX)
  53   ReplaceSubstringsAfterOffset(
  54       &url_string, 0, FILE_PATH_LITERAL("\\"), FILE_PATH_LITERAL("%5C"));
  55 #endif
  56
  57   return GURL(url_string);
  58 }
  59
  60 }  // namespace mojo