NANDImporter: Make a class variable for the NAND root

Source/Core/DiscIO/NANDImporter.cpp

@@ -22,7 +22,9 @@ namespace DiscIO
 constexpr size_t NAND_SIZE = 0x20000000;
 constexpr size_t NAND_KEYS_SIZE = 0x400;
 
-NANDImporter::NANDImporter() = default;
+NANDImporter::NANDImporter() : m_nand_root(File::GetUserPath(D_WIIROOT_IDX))
+{
+}
 NANDImporter::~NANDImporter() = default;
 
 void NANDImporter::ImportNANDBin(const std::string& path_to_bin,
@@ -34,14 +36,10 @@ void NANDImporter::ImportNANDBin(const std::string& path_to_bin,
   if (!ReadNANDBin(path_to_bin, get_otp_dump_path))
     return;
 
-  std::string nand_root = File::GetUserPath(D_WIIROOT_IDX);
-  nand_root.pop_back();  // remove trailing path separator
-  m_nand_root_length = nand_root.length();
-
   FindSuperblock();
-  ProcessEntry(0, nand_root);
-  ExportKeys(nand_root);
-  ExtractCertificates(nand_root);
+  ProcessEntry(0, "");
+  ExportKeys();
+  ExtractCertificates();
 }
 
 bool NANDImporter::ReadNANDBin(const std::string& path_to_bin,
@@ -162,12 +160,12 @@ void NANDImporter::ProcessDirectory(const NANDFSTEntry& entry, const std::string
   INFO_LOG_FMT(DISCIO, "Path: {}", FormatDebugString(entry));
 
   const std::string path = GetPath(entry, parent_path);
-  File::CreateDir(path);
+  File::CreateDir(m_nand_root + path);
 
   if (entry.sub != 0xffff)
     ProcessEntry(entry.sub, path);
 
-  INFO_LOG_FMT(DISCIO, "Path: {}", parent_path.data() + m_nand_root_length);
+  INFO_LOG_FMT(DISCIO, "Path: {}", parent_path);
 }
 
 void NANDImporter::ProcessFile(const NANDFSTEntry& entry, const std::string& parent_path)
@@ -179,7 +177,7 @@ void NANDImporter::ProcessFile(const NANDFSTEntry& entry, const std::string& par
   INFO_LOG_FMT(DISCIO, "File: {}", FormatDebugString(entry));
 
   const std::string path = GetPath(entry, parent_path);
-  File::IOFile file(path, "wb");
+  File::IOFile file(m_nand_root + path, "wb");
   std::array<u8, 16> key{};
   std::copy(&m_nand_keys[NAND_AES_KEY_OFFSET], &m_nand_keys[NAND_AES_KEY_OFFSET + key.size()],
             key.begin());
@@ -198,9 +196,9 @@ void NANDImporter::ProcessFile(const NANDFSTEntry& entry, const std::string& par
   }
 }
 
-bool NANDImporter::ExtractCertificates(const std::string& nand_root)
+bool NANDImporter::ExtractCertificates()
 {
-  const std::string content_dir = nand_root + "/title/00000001/0000000d/content/";
+  const std::string content_dir = m_nand_root + "/title/00000001/0000000d/content/";
 
   File::IOFile tmd_file(content_dir + "title.tmd", "rb");
   std::vector<u8> tmd_bytes(tmd_file.GetSize());
@@ -251,7 +249,7 @@ bool NANDImporter::ExtractCertificates(const std::string& nand_root)
       return false;
     }
 
-    const std::string pem_file_path = nand_root + std::string(certificate.filename);
+    const std::string pem_file_path = m_nand_root + std::string(certificate.filename);
     const ptrdiff_t certificate_offset = std::distance(content_bytes.begin(), search_result);
     const u16 certificate_size = Common::swap16(&content_bytes[certificate_offset - 2]);
     INFO_LOG_FMT(DISCIO, "ExtractCertificates: '{}' offset: {:#x} size: {:#x}",
@@ -267,9 +265,9 @@ bool NANDImporter::ExtractCertificates(const std::string& nand_root)
   return true;
 }
 
-void NANDImporter::ExportKeys(const std::string& nand_root)
+void NANDImporter::ExportKeys()
 {
-  const std::string file_path = nand_root + "/keys.bin";
+  const std::string file_path = m_nand_root + "/keys.bin";
   File::IOFile file(file_path, "wb");
   if (!file.WriteBytes(m_nand_keys.data(), NAND_KEYS_SIZE))
     PanicAlertFmtT("Unable to write to file {0}", file_path);

Source/Core/DiscIO/NANDImporter.h

@@ -22,7 +22,7 @@ public:
   // get_otp_dump_path will be called to get a path to it.
   void ImportNANDBin(const std::string& path_to_bin, std::function<void()> update_callback,
                      std::function<std::string()> get_otp_dump_path);
-  bool ExtractCertificates(const std::string& nand_root);
+  bool ExtractCertificates();
 
 private:
 #pragma pack(push, 1)
@@ -48,13 +48,13 @@ private:
   void ProcessEntry(u16 entry_number, const std::string& parent_path);
   void ProcessFile(const NANDFSTEntry& entry, const std::string& parent_path);
   void ProcessDirectory(const NANDFSTEntry& entry, const std::string& parent_path);
-  void ExportKeys(const std::string& nand_root);
+  void ExportKeys();
 
+  std::string m_nand_root;
   std::vector<u8> m_nand;
   std::vector<u8> m_nand_keys;
   size_t m_nand_fat_offset = 0;
   size_t m_nand_fst_offset = 0;
   std::function<void()> m_update_callback;
-  size_t m_nand_root_length = 0;
 };
 }  // namespace DiscIO

Source/Core/DolphinQt/MenuBar.cpp

@@ -1175,7 +1175,7 @@ void MenuBar::CheckNAND()
 
 void MenuBar::NANDExtractCertificates()
 {
-  if (DiscIO::NANDImporter().ExtractCertificates(File::GetUserPath(D_WIIROOT_IDX)))
+  if (DiscIO::NANDImporter().ExtractCertificates())
   {
     ModalMessageBox::information(this, tr("Success"),
                                  tr("Successfully extracted certificates from NAND"));

Source/Core/DolphinQt/WiiUpdate.cpp

@@ -30,12 +30,12 @@ static void ShowResult(QWidget* parent, WiiUtils::UpdateResult result)
   case WiiUtils::UpdateResult::Succeeded:
     ModalMessageBox::information(parent, QObject::tr("Update completed"),
                                  QObject::tr("The emulated Wii console has been updated."));
-    DiscIO::NANDImporter().ExtractCertificates(File::GetUserPath(D_WIIROOT_IDX));
+    DiscIO::NANDImporter().ExtractCertificates();
     break;
   case WiiUtils::UpdateResult::AlreadyUpToDate:
     ModalMessageBox::information(parent, QObject::tr("Update completed"),
                                  QObject::tr("The emulated Wii console is already up-to-date."));
-    DiscIO::NANDImporter().ExtractCertificates(File::GetUserPath(D_WIIROOT_IDX));
+    DiscIO::NANDImporter().ExtractCertificates();
     break;
   case WiiUtils::UpdateResult::ServerFailed:
     ModalMessageBox::critical(parent, QObject::tr("Update failed"),