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395 lines
12 KiB
C
395 lines
12 KiB
C
/*
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* IQueryAssociations helper functions
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*
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* Copyright 2002 Jon Griffiths
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "precomp.h"
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/* Default IQueryAssociations::Init() flags */
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#define SHLWAPI_DEF_ASSOCF (ASSOCF_INIT_BYEXENAME|ASSOCF_INIT_DEFAULTTOSTAR| \
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ASSOCF_INIT_DEFAULTTOFOLDER)
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/*************************************************************************
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* SHLWAPI_ParamAToW
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*
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* Internal helper function: Convert ASCII parameter to Unicode.
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*/
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static BOOL SHLWAPI_ParamAToW(LPCSTR lpszParam, LPWSTR lpszBuff, DWORD dwLen,
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LPWSTR* lpszOut)
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{
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if (lpszParam)
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{
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DWORD dwStrLen = MultiByteToWideChar(CP_ACP, 0, lpszParam, -1, NULL, 0);
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if (dwStrLen < dwLen)
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{
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*lpszOut = lpszBuff; /* Use Buffer, it is big enough */
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}
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else
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{
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/* Create a new buffer big enough for the string */
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*lpszOut = HeapAlloc(GetProcessHeap(), 0,
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dwStrLen * sizeof(WCHAR));
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if (!*lpszOut)
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return FALSE;
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}
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MultiByteToWideChar(CP_ACP, 0, lpszParam, -1, *lpszOut, dwStrLen);
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}
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else
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*lpszOut = NULL;
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return TRUE;
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}
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/*************************************************************************
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* AssocCreate [SHLWAPI.@]
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*
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* Create a new IQueryAssociations object.
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*
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* PARAMS
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* clsid [I] CLSID of object
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* refiid [I] REFIID of interface
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* lpInterface [O] Destination for the created IQueryAssociations object
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*
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* RETURNS
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* Success: S_OK. lpInterface contains the new object.
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* Failure: An HRESULT error code indicating the error.
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*
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* NOTES
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* clsid must be equal to CLSID_QueryAssociations and
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* refiid must be equal to IID_IQueryAssociations, IID_IUnknown or this function will fail
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*/
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HRESULT WINAPI AssocCreate(CLSID clsid, REFIID refiid, void **lpInterface)
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{
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TRACE("(%s,%s,%p)\n", debugstr_guid(&clsid), debugstr_guid(refiid),
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lpInterface);
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if (!lpInterface)
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return E_INVALIDARG;
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*(DWORD*)lpInterface = 0;
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if (!IsEqualGUID(&clsid, &CLSID_QueryAssociations))
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return CLASS_E_CLASSNOTAVAILABLE;
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return SHCoCreateInstance( NULL, &clsid, NULL, refiid, lpInterface );
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}
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/*************************************************************************
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* AssocGetPerceivedType [SHLWAPI.@]
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*
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* Detect the type of a file by inspecting its extension
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*
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* PARAMS
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* lpszExt [I] File extension to evaluate.
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* lpType [O] Pointer to perceived type
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* lpFlag [O] Pointer to perceived type flag
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* lppszType [O] Address to pointer for perceived type text
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*
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* RETURNS
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* Success: S_OK. lpType and lpFlag contain the perceived type and
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* its information. If lppszType is not NULL, it will point
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* to a string with perceived type text.
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* Failure: An HRESULT error code indicating the error.
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*
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* NOTES
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* lppszType is optional and it can be NULL.
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* if lpType or lpFlag are NULL, the function will crash.
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* if lpszExt is NULL, an error is returned.
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*
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* BUGS
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* Unimplemented.
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*/
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HRESULT WINAPI AssocGetPerceivedType(LPCWSTR lpszExt, PERCEIVED *lpType,
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INT *lpFlag, LPWSTR *lppszType)
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{
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FIXME("(%s, %p, %p, %p) not supported\n", debugstr_w(lpszExt), lpType, lpFlag, lppszType);
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if (lpszExt == NULL)
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return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
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return E_NOTIMPL;
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}
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/*************************************************************************
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* AssocQueryKeyW [SHLWAPI.@]
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*
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* See AssocQueryKeyA.
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*/
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HRESULT WINAPI AssocQueryKeyW(ASSOCF cfFlags, ASSOCKEY assockey, LPCWSTR pszAssoc,
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LPCWSTR pszExtra, HKEY *phkeyOut)
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{
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HRESULT hRet;
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IQueryAssociations* lpAssoc;
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TRACE("(0x%x,%d,%s,%s,%p)\n", cfFlags, assockey, debugstr_w(pszAssoc),
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debugstr_w(pszExtra), phkeyOut);
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hRet = AssocCreate( CLSID_QueryAssociations, &IID_IQueryAssociations, (void **)&lpAssoc );
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if (FAILED(hRet)) return hRet;
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cfFlags &= SHLWAPI_DEF_ASSOCF;
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hRet = IQueryAssociations_Init(lpAssoc, cfFlags, pszAssoc, NULL, NULL);
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if (SUCCEEDED(hRet))
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hRet = IQueryAssociations_GetKey(lpAssoc, cfFlags, assockey, pszExtra, phkeyOut);
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IQueryAssociations_Release(lpAssoc);
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return hRet;
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}
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/*************************************************************************
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* AssocQueryKeyA [SHLWAPI.@]
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*
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* Get a file association key from the registry.
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*
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* PARAMS
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* cfFlags [I] ASSOCF_ flags from "shlwapi.h"
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* assockey [I] Type of key to get
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* pszAssoc [I] Key name to search below
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* pszExtra [I] Extra information about the key location
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* phkeyOut [O] Destination for the association key
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*
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* RETURNS
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* Success: S_OK. phkeyOut contains the key.
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* Failure: An HRESULT error code indicating the error.
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*/
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HRESULT WINAPI AssocQueryKeyA(ASSOCF cfFlags, ASSOCKEY assockey, LPCSTR pszAssoc,
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LPCSTR pszExtra, HKEY *phkeyOut)
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{
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WCHAR szAssocW[MAX_PATH], *lpszAssocW = NULL;
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WCHAR szExtraW[MAX_PATH], *lpszExtraW = NULL;
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HRESULT hRet = E_OUTOFMEMORY;
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TRACE("(0x%x,%d,%s,%s,%p)\n", cfFlags, assockey, debugstr_a(pszAssoc),
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debugstr_a(pszExtra), phkeyOut);
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if (SHLWAPI_ParamAToW(pszAssoc, szAssocW, MAX_PATH, &lpszAssocW) &&
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SHLWAPI_ParamAToW(pszExtra, szExtraW, MAX_PATH, &lpszExtraW))
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{
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hRet = AssocQueryKeyW(cfFlags, assockey, lpszAssocW, lpszExtraW, phkeyOut);
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}
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if (lpszAssocW != szAssocW)
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HeapFree(GetProcessHeap(), 0, lpszAssocW);
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if (lpszExtraW != szExtraW)
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HeapFree(GetProcessHeap(), 0, lpszExtraW);
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return hRet;
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}
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/*************************************************************************
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* AssocQueryStringW [SHLWAPI.@]
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*
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* See AssocQueryStringA.
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*/
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HRESULT WINAPI AssocQueryStringW(ASSOCF cfFlags, ASSOCSTR str, LPCWSTR pszAssoc,
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LPCWSTR pszExtra, LPWSTR pszOut, DWORD *pcchOut)
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{
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HRESULT hRet;
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IQueryAssociations* lpAssoc;
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TRACE("(0x%x,%d,%s,%s,%p,%p)\n", cfFlags, str, debugstr_w(pszAssoc),
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debugstr_w(pszExtra), pszOut, pcchOut);
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if (!pcchOut)
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return E_UNEXPECTED;
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hRet = AssocCreate( CLSID_QueryAssociations, &IID_IQueryAssociations, (void **)&lpAssoc );
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if (FAILED(hRet)) return hRet;
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hRet = IQueryAssociations_Init(lpAssoc, cfFlags & SHLWAPI_DEF_ASSOCF,
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pszAssoc, NULL, NULL);
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if (SUCCEEDED(hRet))
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hRet = IQueryAssociations_GetString(lpAssoc, cfFlags, str, pszExtra,
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pszOut, pcchOut);
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IQueryAssociations_Release(lpAssoc);
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return hRet;
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}
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/*************************************************************************
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* AssocQueryStringA [SHLWAPI.@]
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*
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* Get a file association string from the registry.
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*
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* PARAMS
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* cfFlags [I] ASSOCF_ flags from "shlwapi.h"
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* str [I] Type of string to get (ASSOCSTR enum from "shlwapi.h")
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* pszAssoc [I] Key name to search below
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* pszExtra [I] Extra information about the string location
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* pszOut [O] Destination for the association string
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* pcchOut [O] Length of pszOut
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*
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* RETURNS
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* Success: S_OK. pszOut contains the string, pcchOut contains its length.
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* Failure: An HRESULT error code indicating the error.
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*/
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HRESULT WINAPI AssocQueryStringA(ASSOCF cfFlags, ASSOCSTR str, LPCSTR pszAssoc,
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LPCSTR pszExtra, LPSTR pszOut, DWORD *pcchOut)
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{
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WCHAR szAssocW[MAX_PATH], *lpszAssocW = NULL;
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WCHAR szExtraW[MAX_PATH], *lpszExtraW = NULL;
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HRESULT hRet = E_OUTOFMEMORY;
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TRACE("(0x%x,0x%d,%s,%s,%p,%p)\n", cfFlags, str, debugstr_a(pszAssoc),
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debugstr_a(pszExtra), pszOut, pcchOut);
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if (!pcchOut)
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hRet = E_UNEXPECTED;
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else if (SHLWAPI_ParamAToW(pszAssoc, szAssocW, MAX_PATH, &lpszAssocW) &&
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SHLWAPI_ParamAToW(pszExtra, szExtraW, MAX_PATH, &lpszExtraW))
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{
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WCHAR szReturnW[MAX_PATH], *lpszReturnW = szReturnW;
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DWORD dwLenOut = *pcchOut;
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if (dwLenOut >= MAX_PATH)
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lpszReturnW = HeapAlloc(GetProcessHeap(), 0,
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(dwLenOut + 1) * sizeof(WCHAR));
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else
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dwLenOut = sizeof(szReturnW) / sizeof(szReturnW[0]);
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if (!lpszReturnW)
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hRet = E_OUTOFMEMORY;
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else
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{
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hRet = AssocQueryStringW(cfFlags, str, lpszAssocW, lpszExtraW,
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lpszReturnW, &dwLenOut);
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if (SUCCEEDED(hRet))
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dwLenOut = WideCharToMultiByte(CP_ACP, 0, lpszReturnW, -1,
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pszOut, *pcchOut, NULL, NULL);
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*pcchOut = dwLenOut;
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if (lpszReturnW != szReturnW)
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HeapFree(GetProcessHeap(), 0, lpszReturnW);
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}
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}
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if (lpszAssocW != szAssocW)
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HeapFree(GetProcessHeap(), 0, lpszAssocW);
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if (lpszExtraW != szExtraW)
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HeapFree(GetProcessHeap(), 0, lpszExtraW);
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return hRet;
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}
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/*************************************************************************
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* AssocQueryStringByKeyW [SHLWAPI.@]
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*
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* See AssocQueryStringByKeyA.
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*/
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HRESULT WINAPI AssocQueryStringByKeyW(ASSOCF cfFlags, ASSOCSTR str, HKEY hkAssoc,
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LPCWSTR pszExtra, LPWSTR pszOut,
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DWORD *pcchOut)
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{
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HRESULT hRet;
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IQueryAssociations* lpAssoc;
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TRACE("(0x%x,0x%d,%p,%s,%p,%p)\n", cfFlags, str, hkAssoc,
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debugstr_w(pszExtra), pszOut, pcchOut);
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hRet = AssocCreate( CLSID_QueryAssociations, &IID_IQueryAssociations, (void **)&lpAssoc );
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if (FAILED(hRet)) return hRet;
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cfFlags &= SHLWAPI_DEF_ASSOCF;
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hRet = IQueryAssociations_Init(lpAssoc, cfFlags, 0, hkAssoc, NULL);
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if (SUCCEEDED(hRet))
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hRet = IQueryAssociations_GetString(lpAssoc, cfFlags, str, pszExtra,
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pszOut, pcchOut);
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IQueryAssociations_Release(lpAssoc);
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return hRet;
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}
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/*************************************************************************
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* AssocQueryStringByKeyA [SHLWAPI.@]
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*
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* Get a file association string from the registry, given a starting key.
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*
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* PARAMS
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* cfFlags [I] ASSOCF_ flags from "shlwapi.h"
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* str [I] Type of string to get
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* hkAssoc [I] Key to search below
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* pszExtra [I] Extra information about the string location
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* pszOut [O] Destination for the association string
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* pcchOut [O] Length of pszOut
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*
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* RETURNS
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* Success: S_OK. pszOut contains the string, pcchOut contains its length.
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* Failure: An HRESULT error code indicating the error.
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*/
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HRESULT WINAPI AssocQueryStringByKeyA(ASSOCF cfFlags, ASSOCSTR str, HKEY hkAssoc,
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LPCSTR pszExtra, LPSTR pszOut,
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DWORD *pcchOut)
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{
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WCHAR szExtraW[MAX_PATH], *lpszExtraW = szExtraW;
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WCHAR szReturnW[MAX_PATH], *lpszReturnW = szReturnW;
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HRESULT hRet = E_OUTOFMEMORY;
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TRACE("(0x%x,0x%d,%p,%s,%p,%p)\n", cfFlags, str, hkAssoc,
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debugstr_a(pszExtra), pszOut, pcchOut);
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if (!pcchOut)
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hRet = E_INVALIDARG;
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else if (SHLWAPI_ParamAToW(pszExtra, szExtraW, MAX_PATH, &lpszExtraW))
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{
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DWORD dwLenOut = *pcchOut;
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if (dwLenOut >= MAX_PATH)
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lpszReturnW = HeapAlloc(GetProcessHeap(), 0,
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(dwLenOut + 1) * sizeof(WCHAR));
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if (lpszReturnW)
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{
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hRet = AssocQueryStringByKeyW(cfFlags, str, hkAssoc, lpszExtraW,
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lpszReturnW, &dwLenOut);
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if (SUCCEEDED(hRet))
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WideCharToMultiByte(CP_ACP,0,szReturnW,-1,pszOut,dwLenOut,0,0);
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*pcchOut = dwLenOut;
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if (lpszReturnW != szReturnW)
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HeapFree(GetProcessHeap(), 0, lpszReturnW);
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}
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}
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if (lpszExtraW != szExtraW)
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HeapFree(GetProcessHeap(), 0, lpszExtraW);
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return hRet;
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}
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/**************************************************************************
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* AssocIsDangerous (SHLWAPI.@)
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*
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* Determine if a file association is dangerous (potentially malware).
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*
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* PARAMS
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* lpszAssoc [I] Name of file or file extension to check.
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*
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* RETURNS
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* TRUE, if lpszAssoc may potentially be malware (executable),
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* FALSE, Otherwise.
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*/
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BOOL WINAPI AssocIsDangerous(LPCWSTR lpszAssoc)
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{
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FIXME("%s\n", debugstr_w(lpszAssoc));
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return FALSE;
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}
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