X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/999836aacade840a5d9a0cbb5fad7b1d4de62c93..0bbe61b8c18a1795189f0cf73cc61c14a0fb846d:/src/common/ftp.cpp?ds=sidebyside diff --git a/src/common/ftp.cpp b/src/common/ftp.cpp index 83f419d546..daf87e82db 100644 --- a/src/common/ftp.cpp +++ b/src/common/ftp.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: ftp.cpp +// Name: common/ftp.cpp // Purpose: FTP protocol // Author: Guilhem Lavaux // Modified by: Mark Johnson, wxWindows@mj10777.de @@ -7,9 +7,11 @@ // Vadim Zeitlin (numerous fixes and rewrites to all part of the // code, support ASCII/Binary modes, better error reporting, more // robust Abort(), support for arbitrary FTP commands, ...) +// Randall Fox (support for active mode) // Created: 07/07/1997 // RCS-ID: $Id$ // Copyright: (c) 1997, 1998 Guilhem Lavaux +// (c) 1998-2004 wxWidgets team // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// @@ -17,10 +19,6 @@ // declarations // ============================================================================ -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) - #pragma implementation "ftp.h" -#endif - // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- @@ -40,6 +38,7 @@ #include "wx/utils.h" #include "wx/log.h" #include "wx/intl.h" + #include "wx/wxcrtvararg.h" #endif // WX_PRECOMP #include "wx/sckaddr.h" @@ -69,7 +68,7 @@ static const size_t LEN_CODE = 3; // ---------------------------------------------------------------------------- IMPLEMENT_DYNAMIC_CLASS(wxFTP, wxProtocol) -IMPLEMENT_PROTOCOL(wxFTP, wxT("ftp"), wxT("ftp"), TRUE) +IMPLEMENT_PROTOCOL(wxFTP, wxT("ftp"), wxT("ftp"), true) // ============================================================================ // implementation @@ -82,23 +81,29 @@ IMPLEMENT_PROTOCOL(wxFTP, wxT("ftp"), wxT("ftp"), TRUE) wxFTP::wxFTP() { m_lastError = wxPROTO_NOERR; - m_streaming = FALSE; + m_streaming = false; m_currentTransfermode = NONE; m_user = wxT("anonymous"); m_passwd << wxGetUserId() << wxT('@') << wxGetFullHostName(); SetNotify(0); - SetFlags(wxSOCKET_NONE); + SetFlags(wxSOCKET_NOWAIT); + m_bPassive = true; + SetDefaultTimeout(60); // Default is Sixty Seconds + m_bEncounteredError = false; } wxFTP::~wxFTP() { if ( m_streaming ) { + // if we are streaming, this will issue + // an FTP ABORT command, to tell the server we are aborting (void)Abort(); } + // now this issues a "QUIT" command to tell the server we are Close(); } @@ -111,20 +116,20 @@ bool wxFTP::Connect(wxSockAddress& addr, bool WXUNUSED(wait)) if ( !wxProtocol::Connect(addr) ) { m_lastError = wxPROTO_NETERR; - return FALSE; + return false; } if ( !m_user ) { m_lastError = wxPROTO_CONNERR; - return FALSE; + return false; } // we should have 220 welcome message if ( !CheckResult('2') ) { Close(); - return FALSE; + return false; } wxString command; @@ -133,23 +138,23 @@ bool wxFTP::Connect(wxSockAddress& addr, bool WXUNUSED(wait)) if ( rc == '2' ) { // 230 return: user accepted without password - return TRUE; + return true; } if ( rc != '3' ) { Close(); - return FALSE; + return false; } command.Printf(wxT("PASS %s"), m_passwd.c_str()); if ( !CheckCommand(command, '2') ) { Close(); - return FALSE; + return false; } - return TRUE; + return true; } bool wxFTP::Connect(const wxString& host) @@ -166,7 +171,7 @@ bool wxFTP::Close() if ( m_streaming ) { m_lastError = wxPROTO_STREAMING; - return FALSE; + return false; } if ( IsConnected() ) @@ -228,6 +233,11 @@ char wxFTP::SendCommand(const wxString& command) char wxFTP::GetResult() { + // if we've already had a read or write timeout error, the connection is + // probably toast, so don't bother, it just wastes the users time + if ( m_bEncounteredError ) + return 0; + wxString code; // m_lastResult will contain the entire server response, possibly on @@ -241,15 +251,18 @@ char wxFTP::GetResult() // ... // xyz ... // and the intermeidate lines may start with xyz or not - bool badReply = FALSE; - bool firstLine = TRUE; - bool endOfReply = FALSE; + bool badReply = false; + bool firstLine = true; + bool endOfReply = false; while ( !endOfReply && !badReply ) { wxString line; - m_lastError = ReadLine(line); + m_lastError = ReadLine(this,line); if ( m_lastError ) + { + m_bEncounteredError = true; return 0; + } if ( !m_lastResult.empty() ) { @@ -265,7 +278,7 @@ char wxFTP::GetResult() { if ( firstLine ) { - badReply = TRUE; + badReply = true; } else { @@ -287,25 +300,25 @@ char wxFTP::GetResult() switch ( chMarker ) { case _T(' '): - endOfReply = TRUE; + endOfReply = true; break; case _T('-'): - firstLine = FALSE; + firstLine = false; break; default: // unexpected - badReply = TRUE; + badReply = true; } } else // subsequent line of multiline reply { - if ( wxStrncmp(line, code, LEN_CODE) == 0 ) + if ( line.compare(0, LEN_CODE, code) == 0 ) { if ( chMarker == _T(' ') ) { - endOfReply = TRUE; + endOfReply = true; } wxLogTrace(FTP_TRACE_MASK, _T("<== %s %s"), @@ -332,7 +345,7 @@ char wxFTP::GetResult() } // if we got here we must have a non empty code string - return code[0u]; + return (char)code[0u]; } // ---------------------------------------------------------------------------- @@ -344,7 +357,7 @@ bool wxFTP::SetTransferMode(TransferMode transferMode) if ( transferMode == m_currentTransfermode ) { // nothing to do - return TRUE; + return true; } wxString mode; @@ -365,17 +378,17 @@ bool wxFTP::SetTransferMode(TransferMode transferMode) if ( !DoSimpleCommand(_T("TYPE"), mode) ) { - wxLogError(_("Failed to set FTP transfer mode to %s."), (const wxChar*) + wxLogError(_("Failed to set FTP transfer mode to %s."), (transferMode == ASCII ? _("ASCII") : _("binary"))); - return FALSE; + return false; } - // If we get here the operation has been succesfully completed + // If we get here the operation has been successfully completed // Set the status-member m_currentTransfermode = transferMode; - return TRUE; + return true; } bool wxFTP::DoSimpleCommand(const wxChar *command, const wxString& arg) @@ -390,10 +403,10 @@ bool wxFTP::DoSimpleCommand(const wxChar *command, const wxString& arg) { wxLogDebug(_T("FTP command '%s' failed."), fullcmd.c_str()); - return FALSE; + return false; } - return TRUE; + return true; } bool wxFTP::ChDir(const wxString& dir) @@ -422,19 +435,20 @@ wxString wxFTP::Pwd() if ( CheckCommand(wxT("PWD"), '2') ) { // the result is at least that long if CheckCommand() succeeded - const wxChar *p = m_lastResult.c_str() + LEN_CODE + 1; + wxString::const_iterator p = m_lastResult.begin() + LEN_CODE + 1; if ( *p != _T('"') ) { - wxLogDebug(_T("Missing starting quote in reply for PWD: %s"), p); + wxLogDebug(_T("Missing starting quote in reply for PWD: %s"), + wxString(p, m_lastResult.end())); } else { - for ( p++; *p; p++ ) + for ( ++p; (bool)*p; ++p ) // FIXME-DMARS { if ( *p == _T('"') ) { // check if the quote is doubled - p++; + ++p; if ( !*p || *p != _T('"') ) { // no, this is the end @@ -468,7 +482,7 @@ bool wxFTP::Rename(const wxString& src, const wxString& dst) str = wxT("RNFR ") + src; if ( !CheckCommand(str, '3') ) - return FALSE; + return false; str = wxT("RNTO ") + dst; @@ -494,36 +508,43 @@ public: : wxSocketInputStream(*sock) { m_ftp = ftp; - - // FIXME make the timeout configurable - - // set a shorter than default timeout - m_i_socket->SetTimeout(60); // 1 minute + // socket timeout automatically set in GetPort function } - size_t GetSize() const { return m_ftpsize; } - virtual ~wxInputFTPStream() { - delete m_i_socket; + delete m_i_socket; // keep at top - if ( IsOk() ) - { - // wait for "226 transfer completed" - m_ftp->CheckResult('2'); + // when checking the result, the stream will + // almost always show an error, even if the file was + // properly transfered, thus, lets just grab the result - m_ftp->m_streaming = FALSE; + // we are looking for "226 transfer completed" + char code = m_ftp->GetResult(); + if ('2' == code) + { + // it was a good transfer. + // we're done! + m_ftp->m_streaming = false; + return; } - else + // did we timeout? + if (0 == code) { + // the connection is probably toast. issue an abort, and + // then a close. there won't be any more waiting + // for this connection m_ftp->Abort(); + m_ftp->Close(); + return; } - - // delete m_i_socket; // moved to top of destructor to accomodate wu-FTPd >= 2.6.0 + // There was a problem with the transfer and the server + // has acknowledged it. If we issue an "ABORT" now, the user + // would get the "226" for the abort and think the xfer was + // complete, thus, don't do anything here, just return } wxFTP *m_ftp; - size_t m_ftpsize; DECLARE_NO_COPY_CLASS(wxInputFTPStream) }; @@ -545,9 +566,9 @@ public: delete m_o_socket; // read this reply - m_ftp->CheckResult('2'); + m_ftp->GetResult(); // save result so user can get to it - m_ftp->m_streaming = FALSE; + m_ftp->m_streaming = false; } else { @@ -564,43 +585,150 @@ public: DECLARE_NO_COPY_CLASS(wxOutputFTPStream) }; -wxSocketClient *wxFTP::GetPort() +void wxFTP::SetDefaultTimeout(wxUint32 Value) { - int a[6]; + m_uiDefaultTimeout = Value; + SetTimeout(Value); // sets it for this socket +} - if ( !DoSimpleCommand(_T("PASV")) ) - { - wxLogError(_("The FTP server doesn't support passive mode.")); +wxSocketBase *wxFTP::GetPort() +{ + /* + PASSIVE: Client sends a "PASV" to the server. The server responds with + an address and port number which it will be listening on. Then + the client connects to the server at the specified address and + port. + + ACTIVE: Client sends the server a PORT command which includes an + address and port number which the client will be listening on. + The server then connects to the client at that address and + port. + */ + + wxSocketBase *socket = m_bPassive ? GetPassivePort() : GetActivePort(); + if ( !socket ) + { + m_bEncounteredError = true; return NULL; } - const wxChar *addrStart = wxStrchr(m_lastResult, _T('(')); - if ( !addrStart ) + // Now set the time for the new socket to the default or user selected + // timeout period + socket->SetTimeout(m_uiDefaultTimeout); + + return socket; +} + +wxSocketBase *wxFTP::AcceptIfActive(wxSocketBase *sock) +{ + if ( m_bPassive ) + return sock; + + // now wait for a connection from server + wxSocketServer *sockSrv = (wxSocketServer *)sock; + if ( !sockSrv->WaitForAccept() ) { - m_lastError = wxPROTO_PROTERR; + m_lastError = wxPROTO_CONNERR; + wxLogError(_("Timeout while waiting for FTP server to connect, try passive mode.")); + delete sock; + sock = NULL; + } + else + { + sock = sockSrv->Accept(true); + delete sockSrv; + } + + return sock; +} + +wxString wxFTP::GetPortCmdArgument(const wxIPV4address& addrLocal, + const wxIPV4address& addrNew) +{ + // Just fills in the return value with the local IP + // address of the current socket. Also it fill in the + // PORT which the client will be listening on + + wxString addrIP = addrLocal.IPAddress(); + int portNew = addrNew.Service(); + + // We need to break the PORT number in bytes + addrIP.Replace(_T("."), _T(",")); + addrIP << _T(',') + << wxString::Format(_T("%d"), portNew >> 8) << _T(',') + << wxString::Format(_T("%d"), portNew & 0xff); + + // Now we have a value like "10,0,0,1,5,23" + return addrIP; +} +wxSocketBase *wxFTP::GetActivePort() +{ + // we need an address to listen on + wxIPV4address addrNew, addrLocal; + GetLocal(addrLocal); + addrNew.AnyAddress(); + addrNew.Service(0); // pick an open port number. + + wxSocketServer *sockSrv = new wxSocketServer(addrNew); + if (!sockSrv->Ok()) + { + // We use Ok() here to see if everything is ok + m_lastError = wxPROTO_PROTERR; + delete sockSrv; return NULL; } - const wxChar *addrEnd = wxStrchr(addrStart, _T(')')); - if ( !addrEnd ) + //gets the new address, actually it is just the port number + sockSrv->GetLocal(addrNew); + + // Now we create the argument of the PORT command, we send in both + // addresses because the addrNew has an IP of "0.0.0.0", so we need the + // value in addrLocal + wxString port = GetPortCmdArgument(addrLocal, addrNew); + if ( !DoSimpleCommand(_T("PORT"), port) ) { m_lastError = wxPROTO_PROTERR; + delete sockSrv; + wxLogError(_("The FTP server doesn't support the PORT command.")); + return NULL; + } + sockSrv->Notify(false); // Don't send any events + return sockSrv; +} + +wxSocketBase *wxFTP::GetPassivePort() +{ + if ( !DoSimpleCommand(_T("PASV")) ) + { + wxLogError(_("The FTP server doesn't support passive mode.")); return NULL; } - wxString straddr(addrStart + 1, addrEnd); + size_t addrStart = m_lastResult.find(_T('(')); + size_t addrEnd = (addrStart == wxString::npos) + ? wxString::npos + : m_lastResult.find(_T(')'), addrStart); + if ( addrEnd == wxString::npos ) + { + m_lastError = wxPROTO_PROTERR; + return NULL; + } + + // get the port number and address + int a[6]; + wxString straddr(m_lastResult, addrStart + 1, addrEnd - (addrStart + 1)); wxSscanf(straddr, wxT("%d,%d,%d,%d,%d,%d"), &a[2],&a[3],&a[4],&a[5],&a[0],&a[1]); - wxUint32 hostaddr = (wxUint16)a[5] << 24 | - (wxUint16)a[4] << 16 | - (wxUint16)a[3] << 8 | - a[2]; - wxUint16 port = (wxUint16)a[0] << 8 | a[1]; + wxUint32 hostaddr = (wxUint16)a[2] << 24 | + (wxUint16)a[3] << 16 | + (wxUint16)a[4] << 8 | + a[5]; + wxUint16 port = (wxUint16)(a[0] << 8 | a[1]); wxIPV4address addr; addr.Hostname(hostaddr); @@ -613,7 +741,7 @@ wxSocketClient *wxFTP::GetPort() return NULL; } - client->Notify(FALSE); + client->Notify(false); return client; } @@ -621,24 +749,21 @@ wxSocketClient *wxFTP::GetPort() bool wxFTP::Abort() { if ( !m_streaming ) - return TRUE; + return true; - m_streaming = FALSE; + m_streaming = false; if ( !CheckCommand(wxT("ABOR"), '4') ) - return FALSE; + return false; return CheckResult('2'); } wxInputStream *wxFTP::GetInputStream(const wxString& path) { - int pos_size; - wxInputFTPStream *in_stream; - if ( ( m_currentTransfermode == NONE ) && !SetTransferMode(BINARY) ) return NULL; - wxSocketClient *sock = GetPort(); + wxSocketBase *sock = GetPort(); if ( !sock ) { @@ -646,23 +771,19 @@ wxInputStream *wxFTP::GetInputStream(const wxString& path) return NULL; } - wxString tmp_str = wxT("RETR ") + wxURL::ConvertFromURI(path); + wxString tmp_str = wxT("RETR ") + wxURI::Unescape(path); if ( !CheckCommand(tmp_str, '1') ) return NULL; - m_streaming = TRUE; - - in_stream = new wxInputFTPStream(this, sock); + sock = AcceptIfActive(sock); + if ( !sock ) + return NULL; - pos_size = m_lastResult.Index(wxT('(')); - if ( pos_size != wxNOT_FOUND ) - { - wxString str_size = m_lastResult(pos_size+1, m_lastResult.Index(wxT(')'))-1); + sock->SetFlags(wxSOCKET_WAITALL); - in_stream->m_ftpsize = wxAtoi(WXSTRINGCAST str_size); - } + m_streaming = true; - sock->SetFlags(wxSOCKET_WAITALL); + wxInputFTPStream *in_stream = new wxInputFTPStream(this, sock); return in_stream; } @@ -672,13 +793,15 @@ wxOutputStream *wxFTP::GetOutputStream(const wxString& path) if ( ( m_currentTransfermode == NONE ) && !SetTransferMode(BINARY) ) return NULL; - wxSocketClient *sock = GetPort(); + wxSocketBase *sock = GetPort(); wxString tmp_str = wxT("STOR ") + path; if ( !CheckCommand(tmp_str, '1') ) return NULL; - m_streaming = TRUE; + sock = AcceptIfActive(sock); + + m_streaming = true; return new wxOutputFTPStream(this, sock); } @@ -693,7 +816,7 @@ bool wxFTP::GetList(wxArrayString& files, { wxSocketBase *sock = GetPort(); if (!sock) - return FALSE; + return false; // NLST : List of Filenames (including Directory's !) // LIST : depending on BS of FTP-Server @@ -701,27 +824,33 @@ bool wxFTP::GetList(wxArrayString& files, // - Windows : like "dir" command // - others : ? wxString line(details ? _T("LIST") : _T("NLST")); - if ( !!wildcard ) + if ( !wildcard.empty() ) { line << _T(' ') << wildcard; } - if (!CheckCommand(line, '1')) + if ( !CheckCommand(line, '1') ) { - return FALSE; + m_lastError = wxPROTO_PROTERR; + wxLogDebug(_T("FTP 'LIST' command returned unexpected result from server")); + delete sock; + return false; } + + sock = AcceptIfActive(sock); + if ( !sock ) + return false; + files.Empty(); - while ( ReadLine(sock, line) == wxPROTO_NOERR ) + while (ReadLine(sock, line) == wxPROTO_NOERR ) { files.Add(line); } + delete sock; // the file list should be terminated by "226 Transfer complete"" - if ( !CheckResult('2') ) - return FALSE; - - return TRUE; + return CheckResult('2'); } bool wxFTP::FileExists(const wxString& fileName) @@ -730,13 +859,13 @@ bool wxFTP::FileExists(const wxString& fileName) // current dir. It does so by simply doing an NLST (via GetList). // If this succeeds (and the list is not empty) the file exists. - bool retval = FALSE; + bool retval = false; wxArrayString fileList; - if ( GetList(fileList, fileName, FALSE) ) + if ( GetList(fileList, fileName, false) ) { // Some ftp-servers (Ipswitch WS_FTP Server 1.0.5 does this) - // displays this behaviour when queried on a non-existing file: + // displays this behaviour when queried on a nonexistent file: // NLST this_file_does_not_exist // 150 Opening ASCII data connection for directory listing // (no data transferred) @@ -787,13 +916,13 @@ int wxFTP::GetFileSize(const wxString& fileName) &statuscode, &filesize) == 2 ) { // We've gotten a good reply. - ok = TRUE; + ok = true; } else { // Something bad happened.. A "2yz" reply with no size // Fallback - ok = FALSE; + ok = false; } } @@ -813,7 +942,7 @@ int wxFTP::GetFileSize(const wxString& fileName) // We now try to get details for the file with a "LIST"-command // and then parse the output from there.. wxArrayString fileList; - if ( GetList(fileList, fileName, TRUE) ) + if ( GetList(fileList, fileName, true) ) { if ( !fileList.IsEmpty() ) { @@ -822,10 +951,10 @@ int wxFTP::GetFileSize(const wxString& fileName) // substring containing the name we are looking for. We // stop the iteration at the first occurrence of the // filename. The search is not case-sensitive. - bool foundIt = FALSE; + bool foundIt = false; size_t i; - for ( i = 0; !foundIt && i < fileList.Count(); i++ ) + for ( i = 0; !foundIt && i < fileList.GetCount(); i++ ) { foundIt = fileList[i].Upper().Contains(fileName.Upper()); }