216 lines
6.9 KiB
C++
216 lines
6.9 KiB
C++
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#include "tsystem.h"
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#include "tconvert.h"
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#ifdef _WIN32
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#define UNICODE // per le funzioni di conversione da/a UNC
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#include <windows.h>
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#include <lm.h>
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#endif
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//-----------------------------------------------------------------------------
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bool TSystem::isUNC(const TFilePath &path) {
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// si assume che il path e' gia' in formato UNC se inizia con "\\"
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std::wstring pathStr = path.getWideString();
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return pathStr.length() > 2 && pathStr.substr(0, 2) == L"\\\\";
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}
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//------------------------------------------------------------------------------
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TFilePath TSystem::toUNC(const TFilePath &fp) {
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#ifdef _WIN32
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if (QString::fromStdWString(fp.getWideString()).startsWith('+')) return fp;
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if (isUNC(fp)) return fp;
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std::string fpStr = ::to_string(fp);
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if (fpStr.length() > 1 && fpStr.c_str()[1] == ':') {
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std::string drive = fpStr.substr(0, 3);
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UINT uiDriveType = GetDriveTypeA(drive.c_str());
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if (uiDriveType & DRIVE_REMOTE) {
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// il drive e' montato
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DWORD cbBuff = _MAX_PATH; // Size of buffer
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char szBuff[_MAX_PATH]; // Buffer to receive information
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REMOTE_NAME_INFO *prni = (REMOTE_NAME_INFO *)&szBuff;
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// Pointers to head of buffer
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UNIVERSAL_NAME_INFO *puni = (UNIVERSAL_NAME_INFO *)&szBuff;
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DWORD dwResult = WNetGetUniversalNameW(::to_wstring(fpStr).c_str(),
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UNIVERSAL_NAME_INFO_LEVEL,
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(LPVOID)&szBuff, &cbBuff);
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switch (dwResult) {
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case NO_ERROR:
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return TFilePath(::to_string(std::wstring(puni->lpUniversalName)));
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case ERROR_NOT_CONNECTED:
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// The network connection does not exists.
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throw TException("The path specified doesn't refer to a shared folder");
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case ERROR_CONNECTION_UNAVAIL:
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// The device is not currently connected,
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// but it is a persistent connection.
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throw TException("The shared folder is not currently connected");
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default:
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throw TException("Cannot convert the path specified to UNC");
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}
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} else {
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// It's a local drive so search for a share to it...
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NET_API_STATUS res;
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PSHARE_INFO_502 BufPtr, p;
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DWORD er = 0, tr = 0, resume = 0, i;
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int iBestMatch = 0;
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std::string csTemp, csTempDrive, csBestMatch;
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do {
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res = NetShareEnum(NULL, 502, (LPBYTE *)&BufPtr, MAX_PREFERRED_LENGTH,
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&er, &tr, &resume);
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// If the call succeeds,
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if (res == ERROR_SUCCESS || res == ERROR_MORE_DATA) {
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p = BufPtr;
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// Loop through the entries;
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for (i = 1; i <= er; i++) {
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if (p->shi502_type == STYPE_DISKTREE) {
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//#ifdef IS_DOTNET
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// shi502_path e' una wstring, aanche se la dichiarazione di
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// PSHARE_INFO_502 non lo sa!
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std::wstring shareLocalPathW = (LPWSTR)(p->shi502_path);
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std::string shareLocalPath = ::to_string(shareLocalPathW);
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//#else
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// string shareLocalPath = toString(p->shi502_path);
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//#endif
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if (toLower(fpStr).find(toLower(shareLocalPath)) == 0) {
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std::string hostName = TSystem::getHostName().toStdString();
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// #ifdef IS_DOTNET
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// shi502_netname e' una wstring, anche se la dichiarazione di
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// PSHARE_INFO_502 non lo sa!
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std::wstring shareNetNameW = (LPWSTR)(p->shi502_netname);
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std::string shareNetName = ::to_string(shareNetNameW);
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// #else
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// string shareNetName = toString(p->shi502_netname);
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//#endif
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shareNetName.append("\\");
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std::string fp(fpStr);
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std::string uncpath =
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"\\\\" + hostName + "\\" +
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fp.replace(0, shareLocalPath.size(), shareNetName);
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return TFilePath(uncpath);
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}
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}
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p++;
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}
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// Free the allocated buffer.
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NetApiBufferFree(BufPtr);
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} else {
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// TRACE(_T("Error: %ld\n"), res);
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}
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// Continue to call NetShareEnum while
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// there are more entries.
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//
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} while (res == ERROR_MORE_DATA); // end do
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}
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}
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// throw TException("Cannot convert the path specified to UNC");
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return fp;
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#else
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// throw TException("Cannot convert the path specified to UNC");
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return fp;
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#endif
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}
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//-----------------------------------------------------------------------------
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TFilePath TSystem::toLocalPath(const TFilePath &fp) {
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#ifdef _WIN32
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if (!isUNC(fp)) return TFilePath(fp);
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std::string pathStr = ::to_string(fp);
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// estrae hostname e il nome dello share dal path UNC
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std::string::size_type idx = pathStr.find_first_of("\\", 2);
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if (idx == std::string::npos)
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throw TException("The path specified is not a valid UNC path");
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std::string hostname = pathStr.substr(2, idx - 2);
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if (toLower(hostname) != toLower(TSystem::getHostName().toStdString()))
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throw TException("The UNC path specified does not refer to the local host");
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std::string::size_type idx2 = pathStr.find_first_of("\\", idx + 1);
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if (idx2 == std::string::npos)
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throw TException("The path specified is not a valid UNC path");
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std::string fpShareName = pathStr.substr(idx + 1, idx2 - idx - 1);
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std::string path = pathStr.substr(idx2 + 1, pathStr.size() - idx2);
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NET_API_STATUS res;
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do {
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PSHARE_INFO_502 BufPtr, p;
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DWORD er = 0, tr = 0, resume = 0;
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res = NetShareEnum(NULL, 502, (LPBYTE *)&BufPtr, DWORD(-1), &er, &tr,
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&resume);
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// If the call succeeds,
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if (res == ERROR_SUCCESS || res == ERROR_MORE_DATA) {
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p = BufPtr;
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// Loop through the entries;
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for (int i = 1; i <= (int)er; i++) {
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if (p->shi502_type == STYPE_DISKTREE) {
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//#ifdef IS_DOTNET
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// shi502_netname e' una wstring, anche se la dichiarazione di
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// PSHARE_INFO_502 non lo sa!
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std::wstring shareNetNameW = (LPWSTR)(p->shi502_netname);
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std::string shareNetName = ::to_string(shareNetNameW);
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// #else
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// string shareNetName = toString(p->shi502_netname);
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//#endif
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if (toLower(fpShareName) == toLower(shareNetName)) {
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//#ifdef IS_DOTNET
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// shi502_path e' una wstring, anche se la dichiarazione di
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// PSHARE_INFO_502 non lo sa!
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std::wstring shareLocalPathW = (LPWSTR)(p->shi502_path);
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return TFilePath(shareLocalPathW) + TFilePath(path);
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}
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}
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p++;
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}
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// Free the allocated buffer.
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NetApiBufferFree(BufPtr);
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} else {
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// TRACE(_T("Error: %ld\n"), res);
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}
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// Continue to call NetShareEnum while
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// there are more entries.
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//
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} while (res == ERROR_MORE_DATA); // end do
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throw TException("Cannot convert to a local path");
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#else
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throw TException("Cannot convert to a local path");
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#endif
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}
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