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 namespace shell {
  16
  17 // Prefix to prepend to get a file URL.
  18 static const base::FilePath::CharType kFileURLPrefix[] =
  19     FILE_PATH_LITERAL("file://");
  20
  21 GURL FilePathToFileURL(const base::FilePath& path) {
  22   // Produce a URL like "file:///C:/foo" for a regular file, or
  23   // "file://///server/path" for UNC. The URL canonicalizer will fix up the
  24   // latter case to be the canonical UNC form: "file://server/path"
  25   base::FilePath::StringType url_string(kFileURLPrefix);
  26   if (!path.IsAbsolute()) {
  27     base::FilePath current_dir;
  28     PathService::Get(base::DIR_CURRENT, &current_dir);
  29     url_string.append(current_dir.value());
  30     url_string.push_back(base::FilePath::kSeparators[0]);
  31   }
  32   url_string.append(path.value());
  33
  34   // Now do replacement of some characters. Since we assume the input is a
  35   // literal filename, anything the URL parser might consider special should
  36   // be escaped here.
  37
  38   // This must be the first substitution since others will introduce percents as
  39   // the escape character
  40   ReplaceSubstringsAfterOffset(&url_string, 0, FILE_PATH_LITERAL("%"),
  41                                FILE_PATH_LITERAL("%25"));
  42
  43   // A semicolon is supposed to be some kind of separator according to RFC 2396.
  44   ReplaceSubstringsAfterOffset(&url_string, 0, FILE_PATH_LITERAL(";"),
  45                                FILE_PATH_LITERAL("%3B"));
  46
  47   ReplaceSubstringsAfterOffset(&url_string, 0, FILE_PATH_LITERAL("#"),
  48                                FILE_PATH_LITERAL("%23"));
  49
  50   ReplaceSubstringsAfterOffset(&url_string, 0, FILE_PATH_LITERAL("?"),
  51                                FILE_PATH_LITERAL("%3F"));
  52
  53 #if defined(OS_POSIX)
  54   ReplaceSubstringsAfterOffset(&url_string, 0, FILE_PATH_LITERAL("\\"),
  55                                FILE_PATH_LITERAL("%5C"));
  56 #endif
  57
  58   return GURL(url_string);
  59 }
  60
  61 GURL AddTrailingSlashIfNeeded(const GURL& url) {
  62   if (!url.has_path() || *url.path().rbegin() == '/')
  63     return url;
  64
  65   std::string path(url.path() + '/');
  66   GURL::Replacements replacements;
  67   replacements.SetPathStr(path);
  68   return url.ReplaceComponents(replacements);
  69 }
  70
  71 }  // namespace shell
  72 }  // namespace mojo