summaryrefslogtreecommitdiff
path: root/Source/Core/Common/NandPaths.cpp
blob: 60cb49fa26b9badc617a8c6852532cc949ffd287 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
// Copyright 2008 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.

#include <algorithm>
#include <cstdio>
#include <fstream>
#include <stdlib.h>
#include <string>
#include <unordered_set>
#include <utility>

#include "Common/CommonFuncs.h"
#include "Common/CommonPaths.h"
#include "Common/CommonTypes.h"
#include "Common/FileUtil.h"
#include "Common/Logging/Log.h"
#include "Common/NandPaths.h"
#include "Common/StringUtil.h"

namespace Common
{
static std::string s_temp_wii_root;

void InitializeWiiRoot(bool use_dummy)
{
  ShutdownWiiRoot();
  if (use_dummy)
  {
    s_temp_wii_root = File::CreateTempDir();
    if (s_temp_wii_root.empty())
    {
      ERROR_LOG(WII_IPC_FILEIO, "Could not create temporary directory");
      return;
    }
    File::CopyDir(File::GetSysDirectory() + WII_USER_DIR, s_temp_wii_root);
    WARN_LOG(WII_IPC_FILEIO, "Using temporary directory %s for minimal Wii FS",
             s_temp_wii_root.c_str());
    static bool s_registered;
    if (!s_registered)
    {
      s_registered = true;
      atexit(ShutdownWiiRoot);
    }
    File::SetUserPath(D_SESSION_WIIROOT_IDX, s_temp_wii_root);
  }
  else
  {
    File::SetUserPath(D_SESSION_WIIROOT_IDX, File::GetUserPath(D_WIIROOT_IDX));
  }
}

void ShutdownWiiRoot()
{
  if (!s_temp_wii_root.empty())
  {
    File::DeleteDirRecursively(s_temp_wii_root);
    s_temp_wii_root.clear();
  }
}

static std::string RootUserPath(FromWhichRoot from)
{
  int idx = from == FROM_CONFIGURED_ROOT ? D_WIIROOT_IDX : D_SESSION_WIIROOT_IDX;
  return File::GetUserPath(idx);
}

std::string GetTicketFileName(u64 _titleID, FromWhichRoot from)
{
  return StringFromFormat("%s/ticket/%08x/%08x.tik", RootUserPath(from).c_str(),
                          (u32)(_titleID >> 32), (u32)_titleID);
}

std::string GetTitleDataPath(u64 _titleID, FromWhichRoot from)
{
  return StringFromFormat("%s/title/%08x/%08x/data/", RootUserPath(from).c_str(),
                          (u32)(_titleID >> 32), (u32)_titleID);
}

std::string GetTMDFileName(u64 _titleID, FromWhichRoot from)
{
  return GetTitleContentPath(_titleID, from) + "title.tmd";
}
std::string GetTitleContentPath(u64 _titleID, FromWhichRoot from)
{
  return StringFromFormat("%s/title/%08x/%08x/content/", RootUserPath(from).c_str(),
                          (u32)(_titleID >> 32), (u32)_titleID);
}

bool CheckTitleTMD(u64 _titleID, FromWhichRoot from)
{
  const std::string TitlePath = GetTMDFileName(_titleID, from);
  if (File::Exists(TitlePath))
  {
    File::IOFile pTMDFile(TitlePath, "rb");
    u64 TitleID = 0;
    pTMDFile.Seek(0x18C, SEEK_SET);
    if (pTMDFile.ReadArray(&TitleID, 1) && _titleID == Common::swap64(TitleID))
      return true;
  }
  INFO_LOG(DISCIO, "Invalid or no tmd for title %08x %08x", (u32)(_titleID >> 32),
           (u32)(_titleID & 0xFFFFFFFF));
  return false;
}

bool CheckTitleTIK(u64 _titleID, FromWhichRoot from)
{
  const std::string ticketFileName = Common::GetTicketFileName(_titleID, from);
  if (File::Exists(ticketFileName))
  {
    File::IOFile pTIKFile(ticketFileName, "rb");
    u64 TitleID = 0;
    pTIKFile.Seek(0x1dC, SEEK_SET);
    if (pTIKFile.ReadArray(&TitleID, 1) && _titleID == Common::swap64(TitleID))
      return true;
  }
  INFO_LOG(DISCIO, "Invalid or no tik for title %08x %08x", (u32)(_titleID >> 32),
           (u32)(_titleID & 0xFFFFFFFF));
  return false;
}

std::string EscapeFileName(const std::string& filename)
{
  // Prevent paths from containing special names like ., .., ..., ...., and so on
  if (std::all_of(filename.begin(), filename.end(), [](char c) { return c == '.'; }))
    return ReplaceAll(filename, ".", "__2e__");

  // Escape all double underscores since we will use double underscores for our escape sequences
  std::string filename_with_escaped_double_underscores = ReplaceAll(filename, "__", "__5f____5f__");

  // Escape all other characters that need to be escaped
  static const std::unordered_set<char> chars_to_replace = {'\"', '*', '/',  ':', '<',
                                                            '>',  '?', '\\', '|', '\x7f'};
  std::string result;
  result.reserve(filename_with_escaped_double_underscores.size());
  for (char c : filename_with_escaped_double_underscores)
  {
    if ((c >= 0 && c <= 0x1F) || chars_to_replace.find(c) != chars_to_replace.end())
      result.append(StringFromFormat("__%02x__", c));
    else
      result.push_back(c);
  }

  return result;
}

std::string EscapePath(const std::string& path)
{
  std::vector<std::string> split_strings;
  SplitString(path, '/', split_strings);

  std::vector<std::string> escaped_split_strings;
  escaped_split_strings.reserve(split_strings.size());
  for (const std::string& split_string : split_strings)
    escaped_split_strings.push_back(EscapeFileName(split_string));

  return JoinStrings(escaped_split_strings, "/");
}

std::string UnescapeFileName(const std::string& filename)
{
  std::string result = filename;
  size_t pos = 0;

  // Replace escape sequences of the format "__3f__" with the ASCII
  // character defined by the escape sequence's two hex digits.
  while ((pos = result.find("__", pos)) != std::string::npos)
  {
    u32 character;
    if (pos + 6 <= result.size() && result[pos + 4] == '_' && result[pos + 5] == '_')
      if (AsciiToHex(result.substr(pos + 2, 2), character))
        result.replace(pos, 6, {static_cast<char>(character)});

    ++pos;
  }

  return result;
}
}