1// Copyright (c) 2011 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 "ppapi/shared_impl/file_type_conversion.h"
6
7#include "base/logging.h"
8#include "ppapi/c/pp_errors.h"
9#include "ppapi/c/ppb_file_io.h"
10#include "ppapi/shared_impl/time_conversion.h"
11
12namespace ppapi {
13
14int FileErrorToPepperError(base::File::Error error_code) {
15  switch (error_code) {
16    case base::File::FILE_OK:
17      return PP_OK;
18    case base::File::FILE_ERROR_EXISTS:
19      return PP_ERROR_FILEEXISTS;
20    case base::File::FILE_ERROR_NOT_FOUND:
21      return PP_ERROR_FILENOTFOUND;
22    case base::File::FILE_ERROR_ACCESS_DENIED:
23    case base::File::FILE_ERROR_SECURITY:
24      return PP_ERROR_NOACCESS;
25    case base::File::FILE_ERROR_NO_MEMORY:
26      return PP_ERROR_NOMEMORY;
27    case base::File::FILE_ERROR_NO_SPACE:
28      return PP_ERROR_NOSPACE;
29    case base::File::FILE_ERROR_NOT_A_DIRECTORY:
30      return PP_ERROR_FAILED;
31    case base::File::FILE_ERROR_NOT_A_FILE:
32      return PP_ERROR_NOTAFILE;
33    default:
34      return PP_ERROR_FAILED;
35  }
36}
37
38bool PepperFileOpenFlagsToPlatformFileFlags(int32_t pp_open_flags,
39                                            int* flags_out) {
40  bool pp_read = !!(pp_open_flags & PP_FILEOPENFLAG_READ);
41  bool pp_write = !!(pp_open_flags & PP_FILEOPENFLAG_WRITE);
42  bool pp_create = !!(pp_open_flags & PP_FILEOPENFLAG_CREATE);
43  bool pp_truncate = !!(pp_open_flags & PP_FILEOPENFLAG_TRUNCATE);
44  bool pp_exclusive = !!(pp_open_flags & PP_FILEOPENFLAG_EXCLUSIVE);
45  bool pp_append = !!(pp_open_flags & PP_FILEOPENFLAG_APPEND);
46
47  // Pepper allows Touch on any open file, so always set this Windows-only flag.
48  int flags = base::File::FLAG_WRITE_ATTRIBUTES;
49
50  if (pp_read)
51    flags |= base::File::FLAG_READ;
52  if (pp_write) {
53    flags |= base::File::FLAG_WRITE;
54  }
55  if (pp_append) {
56    if (pp_write)
57      return false;
58    flags |= base::File::FLAG_APPEND;
59  }
60
61  if (pp_truncate && !pp_write)
62    return false;
63
64  if (pp_create) {
65    if (pp_exclusive) {
66      flags |= base::File::FLAG_CREATE;
67    } else if (pp_truncate) {
68      flags |= base::File::FLAG_CREATE_ALWAYS;
69    } else {
70      flags |= base::File::FLAG_OPEN_ALWAYS;
71    }
72  } else if (pp_truncate) {
73    flags |= base::File::FLAG_OPEN_TRUNCATED;
74  } else {
75    flags |= base::File::FLAG_OPEN;
76  }
77
78  if (flags_out)
79    *flags_out = flags;
80  return true;
81}
82
83void FileInfoToPepperFileInfo(const base::File::Info& info,
84                              PP_FileSystemType fs_type,
85                              PP_FileInfo* info_out) {
86  DCHECK(info_out);
87  info_out->size = info.size;
88  info_out->creation_time = TimeToPPTime(info.creation_time);
89  info_out->last_access_time = TimeToPPTime(info.last_accessed);
90  info_out->last_modified_time = TimeToPPTime(info.last_modified);
91  info_out->system_type = fs_type;
92  if (info.is_directory) {
93    info_out->type = PP_FILETYPE_DIRECTORY;
94  } else if (info.is_symbolic_link) {
95    DCHECK_EQ(PP_FILESYSTEMTYPE_EXTERNAL, fs_type);
96    info_out->type = PP_FILETYPE_OTHER;
97  } else {
98    info_out->type = PP_FILETYPE_REGULAR;
99  }
100}
101
102}  // namespace ppapi
103