mirror of
https://github.com/reactos/reactos.git
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7e22dc05ca
ROSTESTS-302 - SHCreateFromDesktop(): Sync declaration and spec. - SHExplorerParseCmdLine(): Sync declaration, header and spec. - SHExplorerParseCmdLine: Enforce 'UINT_PTR' return type. Addendum toe39876dand0f8439a. - SHExplorerParseCmdLine: Replace '*EXPLORER_INFO' - SHExplorerParseCmdLine: Fix x64 support; Fix some results.
428 lines
12 KiB
C++
428 lines
12 KiB
C++
/*
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* ReactOS browseui
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*
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* Copyright 2014 David Quintana <gigaherz@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "precomp.h"
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#include <strsafe.h>
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extern "C"
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BOOL WINAPI GUIDFromStringW(
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_In_ PCWSTR psz,
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_Out_ LPGUID pguid
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);
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static BOOL _CopyAndUnquoteText(LPCWSTR strFieldSource, LPWSTR strField, size_t cchField)
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{
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WCHAR cChar;
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PWSTR tmpField = strField;
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size_t lenField = 1;
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BOOL inQuote = FALSE;
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// Remove leading whitespace
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cChar = *strFieldSource;
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while (cChar == L' ' || cChar == L'\t' || cChar == L'\n' || cChar == L'\r')
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{
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strFieldSource = CharNextW(strFieldSource);
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cChar = *strFieldSource;
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}
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while (cChar && cChar != L'=' && cChar != L',')
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{
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if (cChar == L'"')
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{
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// [1] is always valid read because of null-termination
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if (inQuote && strFieldSource[1] == L'"')
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{
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if (lenField < cchField)
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{
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// Append
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*(tmpField++) = L'"';
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++lenField;
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}
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// Skip second quote
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strFieldSource++;
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}
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else
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{
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inQuote = !inQuote;
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}
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}
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else
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{
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if (inQuote || (cChar != L'=' && cChar != L','))
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{
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if (lenField < cchField)
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{
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// Append
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*(tmpField++) = cChar;
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++lenField;
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}
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}
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}
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strFieldSource = CharNextW(strFieldSource);
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cChar = *strFieldSource;
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}
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// Remove trailing whitespace
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while (tmpField > strField)
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{
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tmpField = CharPrevW(strField, tmpField);
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cChar = *tmpField;
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if (cChar != L' ' && cChar != L'\t' && cChar != L'\n' && cChar != L'\r')
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{
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tmpField = CharNextW(tmpField);
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break;
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}
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}
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// Terminate output string
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*tmpField = 0;
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return TRUE;
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}
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static BOOL _FindNextArg(PCWSTR * pstrFieldSource)
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{
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PCWSTR strFieldSource = *pstrFieldSource;
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WCHAR cChar = *strFieldSource;
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BOOL inQuote = FALSE;
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while (cChar)
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{
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if (!inQuote && (cChar == L'=' || cChar == L','))
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break;
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if (cChar == L'"')
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inQuote = !inQuote;
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strFieldSource = CharNextW(strFieldSource);
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cChar = *strFieldSource;
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}
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if (cChar == 0)
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{
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*pstrFieldSource = strFieldSource;
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return FALSE;
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}
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*pstrFieldSource = CharNextW(strFieldSource);
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return TRUE;
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}
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static PCWSTR _FindFirstField(PCWSTR strFieldSource)
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{
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//Find end of first arg, because
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// behaviour is different if the first separator is an '='
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BOOL inQuote = FALSE;
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PCWSTR tmpArgs = strFieldSource;
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WCHAR cChar = *tmpArgs;
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while (cChar)
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{
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if (cChar == L'=')
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break;
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if (cChar == L',')
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break;
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if (cChar == L'\"')
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inQuote = !inQuote;
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tmpArgs = CharNextW(tmpArgs);
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cChar = *tmpArgs;
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}
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// Skip the text before the first equal sign, if not quoted, unless the arg 0 was requested.
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if (*tmpArgs == L'=' && !inQuote)
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{
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strFieldSource = ++tmpArgs;
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TRACE("Skipped content before the first '=', remainder=%S\n", strFieldSource);
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}
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return strFieldSource;
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}
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static BOOL _ReadNextArg(PCWSTR * pstrFieldSource, PWSTR strField, size_t cchField)
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{
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// Copy and unquote text
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_CopyAndUnquoteText(*pstrFieldSource, strField, cchField);
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return _FindNextArg(pstrFieldSource);
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}
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static LPITEMIDLIST _ILReadFromSharedMemory(PCWSTR strField)
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{
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LPITEMIDLIST ret = NULL;
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// Ensure it really is an IDLIST-formatted parameter
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// Format for IDLIST params: ":pid:shared"
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if (*strField != L':')
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return NULL;
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HANDLE hData = IntToPtr(StrToIntW(strField + 1));
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PWSTR strSecond = StrChrW(strField + 1, L':');
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if (strSecond)
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{
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int pid = StrToIntW(strSecond + 1);
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void* pvShared = SHLockShared(hData, pid);
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if (pvShared)
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{
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ret = ILClone((LPCITEMIDLIST) pvShared);
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SHUnlockShared(pvShared);
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SHFreeShared(hData, pid);
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}
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}
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return ret;
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}
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static HRESULT _ParsePathToPidl(PWSTR strPath, LPITEMIDLIST * pidl)
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{
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CComPtr<IShellFolder> psfDesktop;
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HRESULT hr = SHGetDesktopFolder(&psfDesktop);
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if (FAILED(hr))
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return hr;
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return psfDesktop->ParseDisplayName(NULL, NULL, strPath, NULL, pidl, NULL);
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}
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static LPITEMIDLIST _GetDocumentsPidl()
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{
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CComPtr<IShellFolder> ppshf;
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LPITEMIDLIST pidl;
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WCHAR guid [] = L"::{450d8fba-ad25-11d0-98a8-0800361b1103}";
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if (SUCCEEDED(SHGetSpecialFolderLocation(NULL, CSIDL_MYDOCUMENTS, &pidl)))
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return pidl;
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if (FAILED(SHGetDesktopFolder(&ppshf)))
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return NULL;
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if (FAILED(ppshf->ParseDisplayName(NULL, NULL, guid, NULL, &pidl, NULL)))
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return NULL;
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return pidl;
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}
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/*************************************************************************
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* SHExplorerParseCmdLine [BROWSEUI.107]
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*/
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// Returns FALSE, TRUE or an address.
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extern "C"
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UINT_PTR
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WINAPI
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SHExplorerParseCmdLine(_Out_ PEXPLORER_CMDLINE_PARSE_RESULTS pInfo)
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{
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WCHAR strField[MAX_PATH];
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WCHAR strDir[MAX_PATH];
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PCWSTR strCmdLine = GetCommandLineW();
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PCWSTR strFieldArray = PathGetArgsW(strCmdLine);
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if (!*strFieldArray)
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{
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pInfo->dwFlags = 9;
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pInfo->pidlPath = _GetDocumentsPidl();
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if (!pInfo->pidlPath)
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{
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GetWindowsDirectoryW(strDir, MAX_PATH);
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PathStripToRootW(strDir);
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pInfo->pidlPath = ILCreateFromPathW(strDir);
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}
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return (UINT_PTR)pInfo->pidlPath;
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}
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PCWSTR strNextArg = _FindFirstField(strFieldArray);
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BOOL hasNext = TRUE;
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hasNext = _ReadNextArg(&strNextArg, strField, _countof(strField));
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while (TRUE)
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{
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// Basic flags-only params first
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if (!StrCmpIW(strField, L"/N"))
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{
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pInfo->dwFlags |= SH_EXPLORER_CMDLINE_FLAG_N | SH_EXPLORER_CMDLINE_FLAG_ONE;
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TRACE("CmdLine Parser: Parsed %S flag. dwFlags=%08lx\n", strField, pInfo->dwFlags);
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}
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else if (!StrCmpIW(strField, L"/S"))
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{
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pInfo->dwFlags |= SH_EXPLORER_CMDLINE_FLAG_S;
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TRACE("CmdLine Parser: Parsed %S flag. dwFlags=%08lx\n", strField, pInfo->dwFlags);
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}
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else if (!StrCmpIW(strField, L"/E"))
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{
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pInfo->dwFlags |= SH_EXPLORER_CMDLINE_FLAG_E;
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TRACE("CmdLine Parser: Parsed %S flag. dwFlags=%08lx\n", strField, pInfo->dwFlags);
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}
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else if (!StrCmpIW(strField, L"/SELECT"))
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{
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pInfo->dwFlags |= SH_EXPLORER_CMDLINE_FLAG_SELECT;
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TRACE("CmdLine Parser: Parsed %S flag. dwFlags=%08lx\n", strField, pInfo->dwFlags);
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}
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else if (!StrCmpIW(strField, L"/NOUI"))
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{
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pInfo->dwFlags |= SH_EXPLORER_CMDLINE_FLAG_NOUI;
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TRACE("CmdLine Parser: Parsed %S flag. dwFlags=%08lx\n", strField, pInfo->dwFlags);
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}
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else if (!StrCmpIW(strField, L"-embedding"))
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{
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pInfo->dwFlags |= SH_EXPLORER_CMDLINE_FLAG_EMBED;
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TRACE("CmdLine Parser: Parsed %S flag. dwFlags=%08lx\n", strField, pInfo->dwFlags);
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}
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else if (!StrCmpIW(strField, L"/SEPARATE"))
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{
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pInfo->dwFlags |= SH_EXPLORER_CMDLINE_FLAG_SEPARATE;
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TRACE("CmdLine Parser: Parsed %S flag. dwFlags=%08lx\n", strField, pInfo->dwFlags);
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}
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else if (!StrCmpIW(strField, L"/INPROC"))
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{
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// No idea what Inproc is supposed to do, but it gets a GUID, and parses it.
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TRACE("CmdLine Parser: Found %S flag\n", strField);
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if (!hasNext)
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return FALSE;
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hasNext = _ReadNextArg(&strNextArg, strField, _countof(strField));
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if (!GUIDFromStringW(strField, &(pInfo->guidInproc)))
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return FALSE;
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pInfo->dwFlags |= SH_EXPLORER_CMDLINE_FLAG_INPROC;
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TRACE("CmdLine Parser: Parsed /INPROC flag. dwFlags=%08lx, guidInproc=%S\n", pInfo->dwFlags, strField);
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}
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else if (!StrCmpIW(strField, L"/ROOT"))
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{
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LPITEMIDLIST pidlRoot = NULL;
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// The window should be rooted
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TRACE("CmdLine Parser: Found %S flag\n", strField);
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if (!pInfo->pidlPath)
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return FALSE;
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if (!hasNext)
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return FALSE;
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hasNext = _ReadNextArg(&strNextArg, strField, _countof(strField));
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// Root may be a pidl
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if (!StrCmpIW(strField, L"/IDLIST"))
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{
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if (hasNext)
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{
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hasNext = _ReadNextArg(&strNextArg, strField, _countof(strField));
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}
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pidlRoot = _ILReadFromSharedMemory(strField);
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}
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else
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{
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// Or just a path string
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_ParsePathToPidl(strField, &pidlRoot);
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}
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pInfo->pidlRoot = pidlRoot;
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// The root defaults to the desktop
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if (!pidlRoot)
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{
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if (FAILED(SHGetSpecialFolderLocation(0, CSIDL_DESKTOP, &(pInfo->pidlRoot))))
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pInfo->pidlRoot = NULL;
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}
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// TODO: Create rooted PIDL from pInfo->pidlPath and pInfo->pidlRoot
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TRACE("CmdLine Parser: Parsed /ROOT flag. dwFlags=%08lx, pidlRoot=%p\n", pInfo->dwFlags, pInfo->pidlRoot);
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}
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else
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{
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// Anything else is part of the target path to browse to
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TRACE("CmdLine Parser: Found target path %S\n", strField);
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// Which can be a shared-memory itemidlist
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if (!StrCmpIW(strField, L"/IDLIST"))
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{
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LPITEMIDLIST pidlArg;
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if (!hasNext)
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return FALSE;
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hasNext = _ReadNextArg(&strNextArg, strField, _countof(strField));
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pidlArg = _ILReadFromSharedMemory(strField);
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if (!pidlArg)
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return FALSE;
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if (pInfo->pidlPath)
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ILFree(pInfo->pidlPath);
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pInfo->pidlPath = pidlArg;
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TRACE("CmdLine Parser: Parsed target path. dwFlags=%08lx, pidlPath=%p\n", pInfo->dwFlags, pInfo->pidlPath);
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}
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else
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{
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// Or just a plain old string.
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if (PathIsDirectoryW(strField))
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PathAddBackslash(strField);
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WCHAR szPath[MAX_PATH];
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DWORD result = GetFullPathNameW(strField, _countof(szPath), szPath, NULL);
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if (result != 0 && result <= _countof(szPath) && PathFileExistsW(szPath))
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StringCchCopyW(strField, _countof(strField), szPath);
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LPITEMIDLIST pidlPath = ILCreateFromPathW(strField);
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pInfo->pidlPath = pidlPath;
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if (pidlPath)
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{
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pInfo->dwFlags |= SH_EXPLORER_CMDLINE_FLAG_IDLIST;
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TRACE("CmdLine Parser: Parsed target path. dwFlags=%08lx, pidlPath=%p\n", pInfo->dwFlags, pInfo->pidlPath);
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}
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else
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{
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// The path could not be parsed into an ID List,
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// so pass it on as a plain string.
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PWSTR field = StrDupW(strField);
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pInfo->strPath = field;
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if (field)
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{
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pInfo->dwFlags |= SH_EXPLORER_CMDLINE_FLAG_STRING;
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TRACE("CmdLine Parser: Parsed target path. dwFlags=%08lx, strPath=%S\n", pInfo->dwFlags, field);
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}
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}
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}
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}
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if (!hasNext)
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break;
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hasNext = _ReadNextArg(&strNextArg, strField, _countof(strField));
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}
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return TRUE;
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}
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