[tor-commits] [Git][tpo/applications/mullvad-browser][mullvad-browser-115.5.0esr-13.5-1] fixup! Bug 9173: Change the default Firefox profile directory to be relative.

richard pushed to branch mullvad-browser-115.5.0esr-13.5-1 at The Tor Project / Applications / Mullvad Browser

Commits:

a601e164

by Pier Angelo Vendrame at 2023-11-30T12:29:05+00:00

fixup! Bug 9173: Change the default Firefox profile directory to be relative.

Bug 42163: Make the DLL blocklist obey portable mode

1 changed file:

toolkit/xre/LauncherRegistryInfo.cpp

Changes:

toolkit/xre/LauncherRegistryInfo.cpp

@@ -17,6 +17,9 @@
  #include <string>
  #include <type_traits>
 +// tor-browser#42163
 +#include <filesystem>
++
  #define EXPAND_STRING_MACRO2(t) t
  #define EXPAND_STRING_MACRO(t) EXPAND_STRING_MACRO2(t)
@@ -586,6 +589,45 @@ LauncherRegistryInfo::GetBrowserStartTimestamp() {
  LauncherResult<std::wstring>
  LauncherRegistryInfo::BuildDefaultBlocklistFilename() {
 +  // tor-browser#42163: Make the DLL blocklist obey portable mode
 +  {
 +    std::filesystem::path appDir;
 +    {
 +      mozilla::UniquePtr<wchar_t[]> appDirStr = GetFullBinaryPath();
 +      if (!appDirStr) {
 +        return LAUNCHER_ERROR_FROM_WIN32(ERROR_NOT_ENOUGH_MEMORY);
 +      }
 +      appDir = std::filesystem::path(appDirStr.get()).parent_path();
 +    }
 +    std::error_code ec;
 +    const bool isPortable =
 +        !std::filesystem::exists(appDir / L"system-install", ec);
 +    if (ec) {
 +      // exists is supposed not to set an error when a file does not exist
 +      // (whereas other functions such as is_regular_file sets it).
 +      // The standard is quite opaque about the meaning of the numeric codes.
 +      // Moreover, we use libcxx on Windows, and it seems they created a sort of
 +      // POSIX compatibility layer (e.g., for stat), see
 +      // libcxx/src/filesystem/posix_compat.h.
 +      // std::error_code has a message function, but all the various macro are
 +      // specific to handle Windows errors, so we have to use the generic error.
 +      // At least, at the moment the error is dropped eventually.
 +      return LAUNCHER_ERROR_GENERIC();
 +    }
 +    if (isPortable) {
 +      // RELATIVE_DATA_DIR must have forward slashes, but weakly_canonical
 +      // already changes them to backslashes.
 +      const std::filesystem::path blocklistPath =
 +          std::filesystem::weakly_canonical(
 +              appDir / L"" RELATIVE_DATA_DIR / L"blocklist", ec);
 +      if (ec) {
 +        return LAUNCHER_ERROR_GENERIC();
 +      }
 +      return blocklistPath.wstring();
 +    }
 +    // Normal installation, continue on Mozilla's path
 +  }
++
    // These flags are chosen to avoid I/O, see bug 1363398.
    const DWORD flags =
        KF_FLAG_SIMPLE_IDLIST | KF_FLAG_DONT_VERIFY | KF_FLAG_NO_ALIAS;
@@ -618,6 +660,8 @@ LauncherRegistryInfo::BuildDefaultBlocklistFilename() {
+ }
  LauncherResult<std::wstring> LauncherRegistryInfo::GetBlocklistFileName() {
 +  // tor-browser#42163: Make the DLL blocklist obey portable mode
 +#ifndef BASE_BROWSER_VERSION
    LauncherResult<Disposition> disposition = Open();
    if (disposition.isErr()) {
      return disposition.propagateErr();
@@ -633,19 +677,19 @@ LauncherResult<std::wstring> LauncherRegistryInfo::GetBlocklistFileName() {
      UniquePtr<wchar_t[]> buf = readResult.unwrap();
      return std::wstring(buf.get());
+   }
+-
 +#endif
    LauncherResult<std::wstring> defaultBlocklistPath =
        BuildDefaultBlocklistFilename();
    if (defaultBlocklistPath.isErr()) {
      return defaultBlocklistPath.propagateErr();
+   }
+-
 +#ifndef BASE_BROWSER_VERSION
    LauncherVoidResult writeResult = WriteRegistryValueString(
        mRegKey, ResolveBlocklistValueName(), defaultBlocklistPath.inspect());
    if (writeResult.isErr()) {
      return writeResult.propagateErr();
+   }
+-
 +#endif
    return defaultBlocklistPath;
+ }