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694 lines
22 KiB
694 lines
22 KiB
/*****************************************************************************\
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FILE: ftpdir.cpp
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DESCRIPTION:
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Internal object that manages a single FTP directory
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The idea is that each FtpSite maintains a linked list of the
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FtpDir's that it owns. Gets and Releases are done through the
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FtpSite. Each FtpDir retains a non-refcounted pointer back
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to the FtpSite that owns it.
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The reason this is necessary is that there might be multiple
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IShellFolder's all looking at the same physical directory. Since
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enumerations are expensive, we cache the enumeration information
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here, so that each IShellFolder client can use the information.
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This also lets us hold the motd, so that multiple clients can
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query for the motd without constantly pinging the site.
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\*****************************************************************************/
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#include "priv.h"
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#include "ftpdir.h"
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#include "ftpsite.h"
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#include "ftppidl.h"
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#include "ftpurl.h"
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#include "ftppidl.h"
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#include "statusbr.h"
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/*****************************************************************************\
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FUNCTION: GetDisplayPath
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DESCRIPTION:
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\*****************************************************************************/
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HRESULT CFtpDir::GetDisplayPath(LPWSTR pwzDisplayPath, DWORD cchSize)
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{
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return GetDisplayPathFromPidl(m_pidlFtpDir, pwzDisplayPath, cchSize, FALSE);
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}
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/*****************************************************************************\
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FUNCTION: CollectMotd
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DESCRIPTION:
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An InternetConnect has just completed. Get the motd and cache it.
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hint - the connected handle, possibly 0 if error
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\*****************************************************************************/
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void CFtpDir::CollectMotd(HINTERNET hint)
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{
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CFtpGlob * pfg = GetFtpResponse(GetFtpSite()->GetCWireEncoding());
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if (m_pfgMotd)
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m_pfgMotd->Release();
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m_pfgMotd = pfg; // m_pfgMotd will take pfg's ref.
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}
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/*****************************************************************************\
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FUNCTION: CollectMotd
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DESCRIPTION:
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Shove a value into the cached list.
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\*****************************************************************************/
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void CFtpDir::SetCache(CFtpPidlList * pflHfpl)
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{
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IUnknown_Set(&m_pflHfpl, pflHfpl);
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// If we are flushing the cache, then flush the Ratings info also.
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// This way the user can reenter the parent password if wanted.
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if (!pflHfpl && m_pfs)
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m_pfs->FlushRatingsInfo();
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}
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/*****************************************************************************\
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FUNCTION: CollectMotd
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DESCRIPTION:
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Get the value out of the cache.
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\*****************************************************************************/
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CFtpPidlList * CFtpDir::GetHfpl(void)
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{
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CFtpPidlList * pfl;
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pfl = m_pflHfpl;
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if (pfl)
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pfl->AddRef();
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return pfl;
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}
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/*****************************************************************************\
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FUNCTION: CollectMotd
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DESCRIPTION:
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Get the FTP site associated with a directory.
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This doesn't AddRef the return value.
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\*****************************************************************************/
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CFtpSite * CFtpDir::GetFtpSite(void)
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{
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return m_pfs;
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}
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CFtpDir * CFtpDir::GetSubFtpDir(CFtpFolder * pff, LPCITEMIDLIST pidl, BOOL fPublic)
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{
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CFtpDir * pfd = NULL;
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if (EVAL(pidl))
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{
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LPITEMIDLIST pidlChild = GetSubPidl(pff, pidl, fPublic);
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if (EVAL(pidlChild))
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{
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m_pfs->GetFtpDir(pidlChild, &pfd);
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ILFree(pidlChild);
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}
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}
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return pfd;
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}
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LPITEMIDLIST CFtpDir::GetSubPidl(CFtpFolder * pff, LPCITEMIDLIST pidlRelative, BOOL fPublic)
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{
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LPITEMIDLIST pidlRoot = ((fPublic && pff) ? pff->GetPublicPidlRootIDClone() : NULL);
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LPITEMIDLIST pidlPublic = ILCombine(pidlRoot, m_pidl);
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LPITEMIDLIST pidlFull = NULL;
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if (pidlPublic)
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{
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pidlFull = ILCombine(pidlPublic, pidlRelative);
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ILFree(pidlPublic);
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}
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ILFree(pidlRoot);
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return pidlFull;
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}
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HRESULT CFtpDir::AddItem(LPCITEMIDLIST pidl)
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{
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if (!m_pflHfpl)
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return S_OK;
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return m_pflHfpl->InsertSorted(pidl);
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}
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/*****************************************************************************\
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FUNCTION: CollectMotd
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DESCRIPTION:
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Get a HINTERNET for this directory.
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\*****************************************************************************/
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HRESULT CFtpDir::GetHint(HWND hwnd, CStatusBar * psb, HINTERNET * phint, IUnknown * punkSite, CFtpFolder * pff)
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{
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HRESULT hr = m_pfs->GetHint(hwnd, m_pidlFtpDir, psb, phint, punkSite, pff);
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return hr;
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}
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/*****************************************************************************\
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FUNCTION: CollectMotd
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DESCRIPTION:
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Give a HINTERNET back to the FtpSite.
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\*****************************************************************************/
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void CFtpDir::ReleaseHint(HINTERNET hint)
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{
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ASSERT(!hint || m_pfs); // If we have a hint to release, we need to call ::ReleaseHint()
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if (m_pfs)
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m_pfs->ReleaseHint(m_pidlFtpDir, hint);
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}
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/*****************************************************************************\
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FUNCTION: CollectMotd
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DESCRIPTION:
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Perform an operation with a temporary internet handle which is
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already connected to the site and resides in the correct directory.
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\*****************************************************************************/
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STDMETHODIMP CFtpDir::WithHint(CStatusBar * psb, HWND hwnd, HINTPROC hp, LPCVOID pv, IUnknown * punkSite, CFtpFolder * pff)
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{
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HRESULT hr = E_FAIL;
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// Did the user turn off FTP Folders?
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// If so, don't connect. This will fix NT #406423 where the user turned
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// of FTP Folders because they have a firewall (CISCO filtering Router)
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// that will kill packets in such a way the caller (WinSock/Wininet) needs
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// to wait for a timeout. During this timeout, the browser will hang causing
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// the user to think it crashed.
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if (!SHRegGetBoolUSValue(SZ_REGKEY_FTPFOLDER, SZ_REGKEY_USE_OLD_UI, FALSE, FALSE))
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{
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HINTERNET hint;
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HINTPROCINFO hpi;
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ASSERTNONCRITICAL; // Cannot do psb (CStatusBar *) with the crst
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ASSERT(m_pfs);
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hpi.pfd = this;
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hpi.hwnd = hwnd;
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hpi.psb = psb;
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hr = GetHint(hwnd, psb, &hint, punkSite, pff);
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if (SUCCEEDED(hr)) // Ok if fails
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{
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BOOL fReleaseHint = TRUE;
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if (hp)
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hr = hp(hint, &hpi, (LPVOID)pv, &fReleaseHint);
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if (fReleaseHint)
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ReleaseHint(hint);
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}
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}
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return hr;
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}
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/*****************************************************************************\
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FUNCTION: _SetNameOfCB
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DESCRIPTION:
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If we were able to rename the file, return the output pidl.
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Also tell anybody who cares that this LPITEMIDLIST needs to be refreshed.
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The "A" emphasizes that the filename is received in ANSI.
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_UNDOCUMENTED_: The documentation on SetNameOf's treatment of
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the source pidl is random. It seems to suggest that the source
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pidl is ILFree'd by SetNameOf, but it isn't.
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\*****************************************************************************/
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HRESULT CFtpDir::_SetNameOfCB(HINTERNET hint, HINTPROCINFO * phpi, LPVOID pv, BOOL * pfReleaseHint)
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{
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LPSETNAMEOFINFO psnoi = (LPSETNAMEOFINFO) pv;
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if (phpi->psb)
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{
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TCHAR szStatus[MAX_PATH];
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FtpPidl_GetLastItemDisplayName(psnoi->pidlOld, szStatus, ARRAYSIZE(szStatus));
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phpi->psb->SetStatusMessage(IDS_RENAMING, szStatus);
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}
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// Remember, FTP filenames are always in the ANSI character set
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return FtpRenameFilePidlWrap(hint, TRUE, psnoi->pidlOld, psnoi->pidlNew);
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}
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BOOL CFtpDir::_DoesItemExist(HWND hwnd, CFtpFolder * pff, LPCITEMIDLIST pidl)
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{
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FTP_FIND_DATA wfd;
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HRESULT hr = GetFindData(hwnd, FtpPidl_GetLastItemWireName(pidl), &wfd, pff);
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return ((S_OK == hr) ? TRUE : FALSE);
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}
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BOOL CFtpDir::_ConfirmReplaceWithRename(HWND hwnd)
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{
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TCHAR szTitle[MAX_PATH];
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TCHAR szMessage[MAX_PATH];
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EVAL(LoadString(HINST_THISDLL, IDS_FTPERR_TITLE, szTitle, ARRAYSIZE(szTitle)));
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EVAL(LoadString(HINST_THISDLL, IDS_FTPERR_RENAME_REPLACE, szMessage, ARRAYSIZE(szMessage)));
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return ((IDYES == MessageBox(hwnd, szMessage, szTitle, (MB_ICONQUESTION | MB_YESNO))) ? TRUE : FALSE);
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}
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HRESULT CFtpDir::SetNameOf(CFtpFolder * pff, HWND hwndOwner, LPCITEMIDLIST pidl,
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LPCWSTR pwzName, DWORD dwReserved, LPITEMIDLIST *ppidlOut)
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{
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HRESULT hr = S_OK;
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SETNAMEOFINFO snoi;
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CWireEncoding cWireEncoding;
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ASSERT(pff);
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if (!pwzName)
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return E_FAIL;
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snoi.pidlOld = pidl;
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cWireEncoding.ChangeFtpItemIDName(NULL, pidl, pwzName, IsUTF8Supported(), (LPITEMIDLIST *) &snoi.pidlNew);
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if (snoi.pidlNew)
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{
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#ifdef FEATURE_REPLACE_IN_RENAME
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// FEATURE: Currently, if the user renames file <a> to file <b> and a file <b>
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// already exists, we fail with the error message, "file already exists...".
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// If we had an excess of time, I would turn on this feature. It would
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// ask the user if they want to replace the file. I would then need to add the
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// code that deletes that file and checks for delete errors.
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// Does it already exist? We don't care if we don't have an hwnd because
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// we can't ask the user to replace so we will just go ahead.
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if (hwndOwner && _DoesItemExist(hwndOwner, pff, snoi.pidlNew))
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{
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// Yes, so let's make sure it's OK with the user to replace it.
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hr = (_ConfirmReplaceWithRename(hwndOwner) ? S_OK : HRESULT_FROM_WIN32(ERROR_CANCELLED));
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todo; // Add the delete call here.
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}
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#endif FEATURE_REPLACE_IN_RENAME
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if (S_OK == hr)
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{
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hr = WithHint(NULL, hwndOwner, _SetNameOfCB, (LPVOID) &snoi, NULL, pff);
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if (SUCCEEDED(hr)) // Will fail if use didn't have permission to rename
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{
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// WARNING: The date/time stamp on the server may be different than what we give to SHChangeNotify()
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// but this is probably reasonable for perf reasons.
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FtpChangeNotify(hwndOwner, FtpPidl_DirChoose(pidl, SHCNE_RENAMEFOLDER, SHCNE_RENAMEITEM), pff, this, pidl, snoi.pidlNew, TRUE);
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if (ppidlOut)
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*ppidlOut = ILClone(snoi.pidlNew);
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}
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}
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ILFree((LPITEMIDLIST) snoi.pidlNew);
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}
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return hr;
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}
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LPCITEMIDLIST CFtpDir::GetPidlFromWireName(LPCWIRESTR pwWireName)
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{
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LPITEMIDLIST pidlToFind = NULL;
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LPITEMIDLIST pidlTemp;
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WCHAR wzDisplayName[MAX_PATH];
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// This isn't valid because the code page could be wrong, but we don't care
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// because it's not used in the search for the pidl, the pwWireName is.
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SHAnsiToUnicode(pwWireName, wzDisplayName, ARRAYSIZE(wzDisplayName));
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if (m_pflHfpl && SUCCEEDED(FtpItemID_CreateFake(wzDisplayName, pwWireName, FALSE, FALSE, FALSE, &pidlTemp)))
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{
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// PERF: log 2 (sizeof(m_pflHfpl))
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pidlToFind = m_pflHfpl->FindPidl(pidlTemp, FALSE);
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// We will try again and this time allow for the case to not match
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if (!pidlToFind)
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pidlToFind = m_pflHfpl->FindPidl(pidlTemp, TRUE);
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ILFree(pidlTemp);
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}
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return pidlToFind;
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}
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LPCITEMIDLIST CFtpDir::GetPidlFromDisplayName(LPCWSTR pwzDisplayName)
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{
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WIRECHAR wWireName[MAX_PATH];
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CWireEncoding * pwe = GetFtpSite()->GetCWireEncoding();
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EVAL(SUCCEEDED(pwe->UnicodeToWireBytes(NULL, pwzDisplayName, (IsUTF8Supported() ? WIREENC_USE_UTF8 : WIREENC_NONE), wWireName, ARRAYSIZE(wWireName))));
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return GetPidlFromWireName(wWireName);
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}
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/*****************************************************************************\
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FUNCTION: IsRoot
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DESCRIPTION:
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Returns FALSE if we are at the "FTP Folder" root level, not
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inside an actual FTP site.y
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\*****************************************************************************/
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BOOL CFtpDir::IsRoot(void)
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{
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return ILIsEmpty(m_pidl);
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}
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typedef struct tagGETFINDDATAINFO
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{
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LPCWIRESTR pwWireName;
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LPFTP_FIND_DATA pwfd;
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} GETFINDDATAINFO, * LPGETFINDDATAINFO;
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HRESULT CFtpDir::_GetFindData(HINTERNET hint, HINTPROCINFO * phpi, LPVOID pv, BOOL * pfReleaseHint)
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{
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LPGETFINDDATAINFO pgfdi = (LPGETFINDDATAINFO) pv;
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HRESULT hr = S_FALSE;
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// Remember, FTP filenames are always in the ANSI character set
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// PERF: Status
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hr = FtpDoesFileExist(hint, TRUE, pgfdi->pwWireName, pgfdi->pwfd, INTERNET_NO_CALLBACK);
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if (SUCCEEDED(hr))
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{
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if (!StrCmpIA(pgfdi->pwfd->cFileName, pgfdi->pwWireName))
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hr = S_OK; // The are equal.
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else if (!StrCmpA(pgfdi->pwfd->cFileName, SZ_DOTA))
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{
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// Coincidence of coincidences: If we found a ".",
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// then the wfd already contains the description of
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// the directory! In other words, the wfd contains
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// the correct information after all, save for the name.
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// Aren't we lucky.
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//
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// And if it isn't dot, then it's some directory with
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// unknown attributes (so we'll use whatever's lying around).
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// Just make sure it's a directory.
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pgfdi->pwfd->dwFileAttributes |= FILE_ATTRIBUTE_DIRECTORY;
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StrCpyNA(pgfdi->pwfd->cFileName, pgfdi->pwWireName, ARRAYSIZE(pgfdi->pwfd->cFileName));
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hr = S_OK;
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}
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}
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else
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{
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#ifndef DEBUG
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// Don't display an error msg because some callers will call when they
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// know the file may not exist. This is the case for ConfirmCopy().
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hr = S_FALSE;
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#endif // DEBUG
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}
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return hr;
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}
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/*****************************************************************************\
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FUNCTION: GetFindData
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DESCRIPTION:
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Get the WIN32_FIND_DATA for a file, given by name.
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This is done as part of drag/drop to allow for an overwrite prompt.
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This is all a gross hack because the STAT command
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isn't supported by WinINet (as FtpGetFileAttributes).
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Not that it'd help, because ftp.microsoft.com is OUT OF SPEC
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with regard to the STAT command. (The first line of the output
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isn't terminated correctly, causing the client to hang.)
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Furthermore, UNIX ftp servers implement STAT incorrectly, too,
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rendering STAT no more useful than LIST.
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HACKHACK -- There is a bug in WinINet where doing a FindFirst
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on a name which happens to be a directory returns the contents
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of the directory instead of the attributes of the directory itself.
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(This is actually a failing of most FTP implementation, because
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they just use /bin/ls for directory listings.)
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So we compare the name that comes back against the name we ask
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for. If they are different, then it's a folder. We'll compare
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in a case-insensitive manner because we don't know whether the
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server is case-sensitive or not.
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Note that we can get faked out if a directory contains a file
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which has the same name as the directory. There is nothing we
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can do about that. Fortunately, UNIX servers always return "."
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as the first file in a subdirectory, so 99% of the time, we'll
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do the right thing.
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\*****************************************************************************/
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HRESULT CFtpDir::GetFindData(HWND hwnd, LPCWIRESTR pwWireName, LPFTP_FIND_DATA pwfd, CFtpFolder * pff)
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{
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GETFINDDATAINFO gfdi = {pwWireName, pwfd};
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HRESULT hr = WithHint(NULL, hwnd, _GetFindData, &gfdi, NULL, pff);
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return hr;
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}
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/*****************************************************************************\
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FUNCTION: GetFindDataForDisplayPath
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DESCRIPTION:
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\*****************************************************************************/
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HRESULT CFtpDir::GetFindDataForDisplayPath(HWND hwnd, LPCWSTR pwzDisplayPath, LPFTP_FIND_DATA pwfd, CFtpFolder * pff)
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{
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CWireEncoding * pwe = GetFtpSite()->GetCWireEncoding();
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WIRECHAR wWirePath[MAX_PATH];
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EVAL(SUCCEEDED(pwe->UnicodeToWireBytes(NULL, pwzDisplayPath, (IsUTF8Supported() ? WIREENC_USE_UTF8 : WIREENC_NONE), wWirePath, ARRAYSIZE(wWirePath))));
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return GetFindData(hwnd, wWirePath, pwfd, pff);
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}
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/*****************************************************************************\
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FUNCTION: GetNameOf
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DESCRIPTION:
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Common worker that handles SHGDN_FORPARSING style GetDisplayNameOf's.
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Note! that since we do not support junctions (duh), we can
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safely walk down the pidl generating goop as we go, secure
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in the knowledge that we are in charge of every subpidl.
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_CHARSET_: Since FTP filenames are always in the ANSI character
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set, by RFC 1738, we can return ANSI display names without loss
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of fidelity. In a general folder implementation, we should be
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using cStr to return display names, so that the UNICODE
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version of the shell extension can handle UNICODE names.
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\*****************************************************************************/
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HRESULT CFtpDir::GetNameOf(LPCITEMIDLIST pidl, DWORD shgno, LPSTRRET pstr)
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{
|
|
LPITEMIDLIST pidlFull = ILCombine(m_pidl, pidl);
|
|
HRESULT hr = E_FAIL;
|
|
|
|
if (pidlFull)
|
|
{
|
|
hr = StrRetFromFtpPidl(pstr, shgno, pidlFull);
|
|
ILFree(pidlFull);
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
/*****************************************************************************\
|
|
FUNCTION: ChangeFolderName
|
|
|
|
DESCRIPTION:
|
|
A rename happened on this folder so update the szDir and m_pidl
|
|
|
|
PARAMETERS:
|
|
pidlFtpPath
|
|
\*****************************************************************************/
|
|
HRESULT CFtpDir::ChangeFolderName(LPCITEMIDLIST pidlFtpPath)
|
|
{
|
|
HRESULT hr = E_FAIL;
|
|
LPITEMIDLIST pidlNewFtpPath = NULL;
|
|
|
|
EVAL(SUCCEEDED(m_pfs->FlushSubDirs(m_pidlFtpDir)));
|
|
hr = FtpPidl_ReplacePath(m_pidl, pidlFtpPath, &pidlNewFtpPath);
|
|
_SetFtpDir(m_pfs, this, pidlFtpPath);
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
Pidl_Set(&m_pidl, pidlNewFtpPath);
|
|
ILFree(pidlNewFtpPath);
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
/*****************************************************************************\
|
|
FUNCTION: _CompareDirs
|
|
|
|
DESCRIPTION:
|
|
Check if the indicated pfd is already rooted at the indicated pidl.
|
|
\*****************************************************************************/
|
|
int CALLBACK _CompareDirs(LPVOID pvPidl, LPVOID pvFtpDir, LPARAM lParam)
|
|
{
|
|
LPCITEMIDLIST pidl = (LPCITEMIDLIST) pvPidl;
|
|
CFtpDir * pfd = (CFtpDir *) pvFtpDir;
|
|
|
|
return FtpItemID_CompareIDsInt(COL_NAME, pfd->m_pidl, pidl, FCMP_NORMAL);
|
|
}
|
|
|
|
|
|
HRESULT CFtpDir::_SetFtpDir(CFtpSite * pfs, CFtpDir * pfd, LPCITEMIDLIST pidl)
|
|
{
|
|
if (FtpID_IsServerItemID(pidl))
|
|
pidl = _ILNext(pidl);
|
|
|
|
// We don't want pfd->m_pidlFtpDir to include the virtual root.
|
|
if (pfd->GetFtpSite()->HasVirtualRoot())
|
|
{
|
|
LPITEMIDLIST pidlIterate = (LPITEMIDLIST) pidl;
|
|
LPITEMIDLIST pidlVRootIterate = (LPITEMIDLIST) pfd->GetFtpSite()->GetVirtualRootReference();
|
|
|
|
ASSERT(!FtpID_IsServerItemID(pidl) && !FtpID_IsServerItemID(pidlVRootIterate));
|
|
// Let's see if pidl starts off with
|
|
while (!ILIsEmpty(pidlVRootIterate) && !ILIsEmpty(pidlIterate) &&
|
|
FtpItemID_IsEqual(pidlVRootIterate, pidlIterate))
|
|
{
|
|
pidlVRootIterate = _ILNext(pidlVRootIterate);
|
|
pidlIterate = _ILNext(pidlIterate);
|
|
}
|
|
|
|
if (ILIsEmpty(pidlVRootIterate))
|
|
pidl = (LPCITEMIDLIST)pidlIterate;
|
|
|
|
}
|
|
|
|
Pidl_Set(&pfd->m_pidlFtpDir, pidl);
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
/*****************************************************************************\
|
|
FUNCTION: CFtpDir_Create
|
|
|
|
DESCRIPTION:
|
|
Create a brand new FtpDir structure.
|
|
\*****************************************************************************/
|
|
HRESULT CFtpDir_Create(CFtpSite * pfs, LPCITEMIDLIST pidl, CFtpDir ** ppfd)
|
|
{
|
|
CFtpDir * pfd = new CFtpDir();
|
|
HRESULT hr = E_OUTOFMEMORY;
|
|
|
|
ASSERT(pfs);
|
|
if (pfd)
|
|
{
|
|
// WARNING: No ref held because it's a back pointer.
|
|
// This requires that the parent (CFtpSite) always
|
|
// out live this object.
|
|
pfd->m_pfs = pfs;
|
|
|
|
Pidl_Set(&pfd->m_pidl, pidl);
|
|
if (pfd->m_pidl)
|
|
hr = pfd->_SetFtpDir(pfs, pfd, pidl);
|
|
else
|
|
IUnknown_Set(&pfd, NULL);
|
|
}
|
|
|
|
*ppfd = pfd;
|
|
ASSERT(*ppfd ? SUCCEEDED(hr) : FAILED(hr));
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
/****************************************************\
|
|
Constructor
|
|
\****************************************************/
|
|
CFtpDir::CFtpDir() : m_cRef(1)
|
|
{
|
|
DllAddRef();
|
|
|
|
// This needs to be allocated in Zero Inited Memory.
|
|
// Assert that all Member Variables are inited to Zero.
|
|
ASSERT(!m_pfs);
|
|
ASSERT(!m_pflHfpl);
|
|
ASSERT(!m_pfgMotd);
|
|
ASSERT(!m_pidl);
|
|
|
|
LEAK_ADDREF(LEAK_CFtpDir);
|
|
}
|
|
|
|
|
|
/****************************************************\
|
|
Destructor
|
|
\****************************************************/
|
|
CFtpDir::~CFtpDir()
|
|
{
|
|
// WARNING: m_pfs is a back pointer that doesn't have a ref.
|
|
// m_pfs)
|
|
|
|
IUnknown_Set(&m_pflHfpl, NULL);
|
|
IUnknown_Set(&m_pfgMotd, NULL);
|
|
|
|
if (m_pidl) // Win95's Shell32.dll crashes with ILFree(NULL)
|
|
ILFree(m_pidl);
|
|
|
|
DllRelease();
|
|
LEAK_DELREF(LEAK_CFtpDir);
|
|
}
|
|
|
|
|
|
//===========================
|
|
// *** IUnknown Interface ***
|
|
//===========================
|
|
|
|
ULONG CFtpDir::AddRef()
|
|
{
|
|
m_cRef++;
|
|
return m_cRef;
|
|
}
|
|
|
|
ULONG CFtpDir::Release()
|
|
{
|
|
ASSERT(m_cRef > 0);
|
|
m_cRef--;
|
|
|
|
if (m_cRef > 0)
|
|
return m_cRef;
|
|
|
|
delete this;
|
|
return 0;
|
|
}
|
|
|
|
HRESULT CFtpDir::QueryInterface(REFIID riid, void **ppvObj)
|
|
{
|
|
if (IsEqualIID(riid, IID_IUnknown))
|
|
{
|
|
*ppvObj = SAFECAST(this, IUnknown*);
|
|
}
|
|
else
|
|
{
|
|
TraceMsg(TF_FTPQI, "CFtpDir::QueryInterface() failed.");
|
|
*ppvObj = NULL;
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
AddRef();
|
|
return S_OK;
|
|
}
|