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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//+----------------------------------------------------------------------------
//
//
// Adapted from Windows sources. Modified to run on Windows version < Win8, so
// that we can use this in CrossGen.
//
//
//-----------------------------------------------------------------------------
#include "common.h"
#include "crossgenroresolvenamespace.h"
#include "stringarraylist.h"
namespace Crossgen
{
#define WINDOWS_NAMESPACE W("Windows")
#define WINDOWS_NAMESPACE_PREFIX WINDOWS_NAMESPACE W(".")
#define WINMD_FILE_EXTENSION_L W(".winmd")
StringArrayList* g_wszWindowsNamespaceDirectories;
StringArrayList* g_wszUserNamespaceDirectories;
BOOL
IsWindowsNamespace(const WCHAR * wszNamespace)
{
LIMITED_METHOD_CONTRACT;
if (wcsncmp(wszNamespace, WINDOWS_NAMESPACE_PREFIX, (_countof(WINDOWS_NAMESPACE_PREFIX) - 1)) == 0)
{
return TRUE;
}
else if (wcscmp(wszNamespace, WINDOWS_NAMESPACE) == 0)
{
return TRUE;
}
return FALSE;
}
BOOL
DoesFileExist(
const WCHAR * wszFileName)
{
LIMITED_METHOD_CONTRACT;
BOOL fFileExists = TRUE;
DWORD dwFileAttributes;
dwFileAttributes = GetFileAttributesW(wszFileName);
if ((dwFileAttributes == INVALID_FILE_ATTRIBUTES) ||
(dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
{
fFileExists = FALSE;
}
return fFileExists;
}
HRESULT
FindNamespaceFileInDirectory(
const WCHAR * wszNamespace,
const WCHAR * wszDirectory,
DWORD * pcMetadataFiles,
SString ** ppMetadataFiles)
{
LIMITED_METHOD_CONTRACT;
if (wszDirectory == nullptr)
return ERROR_NOT_SUPPORTED;
WCHAR wszFilePath[MAX_LONGPATH + 1];
wcscpy_s(
wszFilePath,
_countof(wszFilePath),
wszDirectory);
WCHAR * wszFirstFileNameChar = wszFilePath + wcslen(wszFilePath);
// If there's no backslash, add one.
if (*(wszFirstFileNameChar - 1) != '\\')
*wszFirstFileNameChar++ = '\\';
WCHAR wszRemainingNamespace[MAX_PATH_FNAME +1];
wcscpy_s(
wszRemainingNamespace,
_countof(wszRemainingNamespace),
wszNamespace);
do
{
*wszFirstFileNameChar = W('\0');
wcscat_s(
wszFilePath,
_countof(wszFilePath),
wszRemainingNamespace);
wcscat_s(
wszFilePath,
_countof(wszFilePath),
WINMD_FILE_EXTENSION_L);
if (DoesFileExist(wszFilePath))
{
*ppMetadataFiles = new SString(wszFilePath);
*pcMetadataFiles = 1;
return S_OK;
}
WCHAR * wszLastDotChar = wcsrchr(wszRemainingNamespace, W('.'));
if (wszLastDotChar == nullptr)
{
*ppMetadataFiles = nullptr;
*pcMetadataFiles = 0;
return S_FALSE;
}
*wszLastDotChar = W('\0');
} while (true);
}
__checkReturn
HRESULT WINAPI CrossgenRoResolveNamespace(
const LPCWSTR wszNamespace,
DWORD * pcMetadataFiles,
SString ** ppMetadataFiles)
{
LIMITED_METHOD_CONTRACT;
HRESULT hr = S_OK;
if (IsWindowsNamespace(wszNamespace))
{
DWORD cAppPaths = g_wszWindowsNamespaceDirectories->GetCount();
for (DWORD i = 0; i < cAppPaths; i++)
{
// Returns S_FALSE on file not found so we continue proving app directory graph
IfFailRet(FindNamespaceFileInDirectory(
wszNamespace,
g_wszWindowsNamespaceDirectories->Get(i).GetUnicode(),
pcMetadataFiles,
ppMetadataFiles));
if (hr == S_OK)
{
return hr;
}
}
}
else
{
DWORD cAppPaths = g_wszUserNamespaceDirectories->GetCount();
for (DWORD i = 0; i < cAppPaths; i++)
{
// Returns S_FALSE on file not found so we continue proving app directory graph
IfFailRet(FindNamespaceFileInDirectory(
wszNamespace,
g_wszUserNamespaceDirectories->Get(i).GetUnicode(),
pcMetadataFiles,
ppMetadataFiles));
if (hr == S_OK)
{
return hr;
}
}
}
return hr;
} // RoResolveNamespace
void SetFirstPartyWinMDPaths(StringArrayList* saAppPaths)
{
LIMITED_METHOD_CONTRACT;
g_wszWindowsNamespaceDirectories = saAppPaths;
}
void SetAppPaths(StringArrayList* saAppPaths)
{
LIMITED_METHOD_CONTRACT;
g_wszUserNamespaceDirectories = saAppPaths;
}
}// Namespace Crossgen
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