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tdelibs/kioslave/ftp/ftp.cc

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// -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 2; -*-
/* This file is part of the KDE libraries
Copyright (C) 2000 David Faure <faure@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
Recommended reading explaining FTP details and quirks:
http://cr.yp.to/ftp.html (by D.J. Bernstein)
*/
#define KIO_FTP_PRIVATE_INCLUDE
#include "ftp.h"
#include <sys/stat.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#include <netinet/in.h>
#include <arpa/inet.h>
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <netdb.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
#if TIME_WITH_SYS_TIME
#include <time.h>
#endif
#include <tqdir.h>
#include <kdebug.h>
#include <klocale.h>
#include <kinstance.h>
#include <kmimemagic.h>
#include <kmimetype.h>
#include <ksockaddr.h>
#include <ksocketaddress.h>
#include <kio/ioslave_defaults.h>
#include <kio/slaveconfig.h>
#include <kremoteencoding.h>
#include <klargefile.h>
#ifdef HAVE_STRTOLL
#define charToLongLong(a) strtoll(a, 0, 10)
#else
#define charToLongLong(a) strtol(a, 0, 10)
#endif
// JPF: a remark on coding style (2004-03-06):
// Some calls to TQString::fromLatin1() were removed from the code. In most places
// the KDE code relies on implicit creation of QStrings. Also Qt has a lot of
// const char* overloads, so that using TQString::fromLatin1() can be ineffectient!
#define FTP_LOGIN "anonymous"
#define FTP_PASSWD "anonymous@"
//#undef kdDebug
#define ENABLE_CAN_RESUME
// JPF: somebody should find a better solution for this or move this to KIO
// JPF: anyhow, in KDE 3.2.0 I found diffent MAX_IPC_SIZE definitions!
namespace KIO {
enum buffersizes
{ /**
* largest buffer size that should be used to transfer data between
* KIO slaves using the data() function
*/
maximumIpcSize = 32 * 1024,
/**
* this is a reasonable value for an initial read() that a KIO slave
* can do to obtain data via a slow network connection.
*/
initialIpcSize = 2 * 1024,
/**
* recommended size of a data block passed to findBufferFileType()
*/
mimimumMimeSize = 1024
};
// JPF: this helper was derived from write_all in file.cc (FileProtocol).
static // JPF: in ftp.cc we make it static
/**
* This helper handles some special issues (blocking and interrupted
* system call) when writing to a file handle.
*
* @return 0 on success or an error code on failure (ERR_COULD_NOT_WRITE,
* ERR_DISK_FULL, ERR_CONNECTION_BROKEN).
*/
int WriteToFile(int fd, const char *buf, size_t len)
{
while (len > 0)
{ // JPF: shouldn't there be a KDE_write?
ssize_t written = write(fd, buf, len);
if (written >= 0)
{ buf += written;
len -= written;
continue;
}
switch(errno)
{ case EINTR: continue;
case EPIPE: return ERR_CONNECTION_BROKEN;
case ENOSPC: return ERR_DISK_FULL;
default: return ERR_COULD_NOT_WRITE;
}
}
return 0;
}
}
KIO::filesize_t Ftp::UnknownSize = (KIO::filesize_t)-1;
using namespace KIO;
extern "C" { KDE_EXPORT int kdemain(int argc, char **argv); }
int kdemain( int argc, char **argv )
{
KLocale::setMainCatalogue("kdelibs");
KInstance instance( "kio_ftp" );
( void ) KGlobal::locale();
kdDebug(7102) << "Starting " << getpid() << endl;
if (argc != 4)
{
fprintf(stderr, "Usage: kio_ftp protocol domain-socket1 domain-socket2\n");
exit(-1);
}
Ftp slave(argv[2], argv[3]);
slave.dispatchLoop();
kdDebug(7102) << "Done" << endl;
return 0;
}
//===============================================================================
// FtpTextReader Read Text lines from a file (or socket)
//===============================================================================
void FtpTextReader::textClear()
{ m_iTextLine = m_iTextBuff = 0;
m_szText[0] = 0;
m_bTextEOF = m_bTextTruncated = false;
}
int FtpTextReader::textRead(FtpSocket *pSock)
{
// if we have still buffered data then move it to the left
char* pEOL;
if(m_iTextLine < m_iTextBuff)
{ m_iTextBuff -= m_iTextLine;
memmove(m_szText, m_szText+m_iTextLine, m_iTextBuff);
pEOL = (char*)memchr(m_szText, '\n', m_iTextBuff); // have a complete line?
}
else
{ m_iTextBuff = 0;
pEOL = NULL;
}
m_bTextEOF = m_bTextTruncated = false;
// read data from the control socket until a complete line is read
int nBytes;
while(pEOL == NULL)
{
if(m_iTextBuff > textReadLimit)
{ m_bTextTruncated = true;
m_iTextBuff = textReadLimit;
}
nBytes = pSock->read(m_szText+m_iTextBuff, sizeof(m_szText)-m_iTextBuff);
if(nBytes <= 0)
{
// This error can occur after the server closed the connection (after a timeout)
if(nBytes < 0)
pSock->debugMessage("textRead failed");
m_bTextEOF = true;
pEOL = m_szText + m_iTextBuff;
}
else
{
m_iTextBuff += nBytes;
pEOL = (char*)memchr(m_szText, '\n', m_iTextBuff);
}
}
nBytes = pEOL - m_szText;
m_iTextLine = nBytes + 1;
if(nBytes > textReadLimit)
{ m_bTextTruncated = true;
nBytes = textReadLimit;
}
if(nBytes && m_szText[nBytes-1] == '\r')
nBytes--;
m_szText[nBytes] = 0;
return nBytes;
}
//===============================================================================
// FtpSocket Helper Class for Data or Control Connections
//===============================================================================
void FtpSocket::debugMessage(const char* pszMsg) const
{
kdDebug(7102) << m_pszName << ": " << pszMsg << endl;
}
int FtpSocket::errorMessage(int iErrorCode, const char* pszMsg) const
{
kdError(7102) << m_pszName << ": " << pszMsg << endl;
return iErrorCode;
}
int FtpSocket::connectSocket(int iTimeOutSec, bool bControl)
{
closeSocket();
int iOpt = bControl ? KExtendedSocket::inetSocket
: KExtendedSocket::noResolve;
setSocketFlags(iOpt | socketFlags());
setTimeout(iTimeOutSec);
int iCon = KExtendedSocket::connect();
if(iCon < 0)
{ int iErrorCode = (status() == IO_LookupError)
? ERR_UNKNOWN_HOST : ERR_COULD_NOT_CONNECT;
TQString strMsg = KExtendedSocket::strError(status(), systemError());
strMsg.prepend("connect failed (code %1): ");
return errorMessage(iErrorCode, strMsg.arg(iCon).latin1());
}
if( !setAddressReusable(true) )
return errorMessage(ERR_COULD_NOT_CREATE_SOCKET, "setAddressReusable failed");
if(!bControl)
{ int on=1;
if( !setSocketOption(SO_KEEPALIVE, (char *)&on, sizeof(on)) )
errorMessage(0, "Keepalive not allowed");
struct linger lng = { 1, 120 };
if( !setSocketOption(SO_LINGER, (char *)&lng, sizeof (lng)) )
errorMessage(0, "Linger mode was not allowed.");
}
debugMessage("connected");
return 0;
}
void FtpSocket::closeSocket()
{
if(m_server != -1 || fd() != -1)
debugMessage("disconnected");
if(m_server != -1)
{
::shutdown(m_server, SHUT_RDWR);
::close(m_server);
m_server = -1;
}
if(socketStatus() > nothing)
reset();
textClear();
}
bool FtpSocket::setSocketOption(int opt, char*arg, socklen_t len) const
{
return (setsockopt(sock(), SOL_SOCKET, opt, arg, len) != -1);
}
//===============================================================================
// Ftp
//===============================================================================
Ftp::Ftp( const TQCString &pool, const TQCString &app )
: SlaveBase( "ftp", pool, app )
{
// init the socket data
m_data = m_control = NULL;
ftpCloseControlConnection();
// init other members
m_port = 0;
kdDebug(7102) << "Ftp::Ftp()" << endl;
}
Ftp::~Ftp()
{
kdDebug(7102) << "Ftp::~Ftp()" << endl;
closeConnection();
}
/**
* This closes a data connection opened by ftpOpenDataConnection().
*/
void Ftp::ftpCloseDataConnection()
{
if(m_data != NULL)
{ delete m_data;
m_data = NULL;
}
}
/**
* This closes a control connection opened by ftpOpenControlConnection() and reinits the
* related states. This method gets called from the constructor with m_control = NULL.
*/
void Ftp::ftpCloseControlConnection()
{
m_extControl = 0;
if(m_control)
delete m_control;
m_control = NULL;
m_cDataMode = 0;
m_bLoggedOn = false; // logon needs control connction
m_bTextMode = false;
m_bBusy = false;
}
/**
* Returns the last response from the server (iOffset >= 0) -or- reads a new response
* (iOffset < 0). The result is returned (with iOffset chars skipped for iOffset > 0).
*/
const char* Ftp::ftpResponse(int iOffset)
{
assert(m_control != NULL); // must have control connection socket
const char *pTxt = m_control->textLine();
// read the next line ...
if(iOffset < 0)
{
int iMore = 0;
m_iRespCode = 0;
// If the server sends multiline responses "nnn-text" we loop here until
// a final "nnn text" line is reached. Only data from the final line will
// be stored. Some servers (OpenBSD) send a single "nnn-" followed by
// optional lines that start with a space and a final "nnn text" line.
do {
int nBytes = m_control->textRead();
int iCode = atoi(pTxt);
if(iCode > 0) m_iRespCode = iCode;
// ignore lines starting with a space in multiline response
if(iMore != 0 && pTxt[0] == 32)
;
// otherwise the line should start with "nnn-" or "nnn "
else if(nBytes < 4 || iCode < 100)
iMore = 0;
// we got a valid line, now check for multiline responses ...
else if(iMore == 0 && pTxt[3] == '-')
iMore = iCode;
// "nnn " ends multiline mode ...
else if(iMore != 0 && (iMore != iCode || pTxt[3] != '-'))
iMore = 0;
if(iMore != 0)
kdDebug(7102) << " > " << pTxt << endl;
} while(iMore != 0);
kdDebug(7102) << "resp> " << pTxt << endl;
m_iRespType = (m_iRespCode > 0) ? m_iRespCode / 100 : 0;
}
// return text with offset ...
while(iOffset-- > 0 && pTxt[0])
pTxt++;
return pTxt;
}
void Ftp::closeConnection()
{
if(m_control != NULL || m_data != NULL)
kdDebug(7102) << "Ftp::closeConnection m_bLoggedOn=" << m_bLoggedOn << " m_bBusy=" << m_bBusy << endl;
if(m_bBusy) // ftpCloseCommand not called
{
kdWarning(7102) << "Ftp::closeConnection Abandoned data stream" << endl;
ftpCloseDataConnection();
}
if(m_bLoggedOn) // send quit
{
if( !ftpSendCmd( "quit", 0 ) || (m_iRespType != 2) )
kdWarning(7102) << "Ftp::closeConnection QUIT returned error: " << m_iRespCode << endl;
}
// close the data and control connections ...
ftpCloseDataConnection();
ftpCloseControlConnection();
}
void Ftp::setHost( const TQString& _host, int _port, const TQString& _user,
const TQString& _pass )
{
kdDebug(7102) << "Ftp::setHost (" << getpid() << "): " << _host << endl;
m_proxyURL = metaData("UseProxy");
m_bUseProxy = (m_proxyURL.isValid() && m_proxyURL.protocol() == "ftp");
if ( m_host != _host || m_port != _port ||
m_user != _user || m_pass != _pass )
closeConnection();
m_host = _host;
m_port = _port;
m_user = _user;
m_pass = _pass;
}
void Ftp::openConnection()
{
ftpOpenConnection(loginExplicit);
}
bool Ftp::ftpOpenConnection (LoginMode loginMode)
{
// check for implicit login if we are already logged on ...
if(loginMode == loginImplicit && m_bLoggedOn)
{
assert(m_control != NULL); // must have control connection socket
return true;
}
kdDebug(7102) << "ftpOpenConnection " << m_host << ":" << m_port << " "
<< m_user << " [password hidden]" << endl;
infoMessage( i18n("Opening connection to host %1").arg(m_host) );
if ( m_host.isEmpty() )
{
error( ERR_UNKNOWN_HOST, TQString::null );
return false;
}
assert( !m_bLoggedOn );
m_initialPath = TQString::null;
m_currentPath = TQString::null;
TQString host = m_bUseProxy ? m_proxyURL.host() : m_host;
unsigned short int port = m_bUseProxy ? m_proxyURL.port() : m_port;
if (!ftpOpenControlConnection(host, port) )
return false; // error emitted by ftpOpenControlConnection
infoMessage( i18n("Connected to host %1").arg(m_host) );
if(loginMode != loginDefered)
{
m_bLoggedOn = ftpLogin();
if( !m_bLoggedOn )
return false; // error emitted by ftpLogin
}
m_bTextMode = config()->readBoolEntry("textmode", false);
connected();
return true;
}
/**
* Called by @ref openConnection. It opens the control connection to the ftp server.
*
* @return true on success.
*/
bool Ftp::ftpOpenControlConnection( const TQString &host, unsigned short int port )
{
if ( port == 0 ) {
struct servent *pse;
if ( ( pse = getservbyname( "ftp", "tcp" ) ) == NULL )
port = 21;
else
port = ntohs(pse->s_port);
}
// implicitly close, then try to open a new connection ...
closeConnection();
int iErrorCode = ERR_OUT_OF_MEMORY;
TQString sErrorMsg;
m_control = new FtpSocket("CNTL");
if(m_control != NULL)
{
// now connect to the server and read the login message ...
m_control->setAddress(host, port);
iErrorCode = m_control->connectSocket(connectTimeout(), true);
sErrorMsg = host;
// on connect success try to read the server message...
if(iErrorCode == 0)
{
const char* psz = ftpResponse(-1);
if(m_iRespType != 2)
{ // login not successful, do we have an message text?
if(psz[0])
sErrorMsg = i18n("%1.\n\nReason: %2").arg(host).arg(psz);
iErrorCode = ERR_COULD_NOT_CONNECT;
}
}
}
// if there was a problem - report it ...
if(iErrorCode == 0) // OK, return success
return true;
closeConnection(); // clean-up on error
error(iErrorCode, sErrorMsg);
return false;
}
/**
* Called by @ref openConnection. It logs us in.
* @ref m_initialPath is set to the current working directory
* if logging on was successful.
*
* @return true on success.
*/
bool Ftp::ftpLogin()
{
infoMessage( i18n("Sending login information") );
assert( !m_bLoggedOn );
TQString user = m_user;
TQString pass = m_pass;
if ( config()->readBoolEntry("EnableAutoLogin") )
{
TQString au = config()->readEntry("autoLoginUser");
if ( !au.isEmpty() )
{
user = au;
pass = config()->readEntry("autoLoginPass");
}
}
// Try anonymous login if both username/password
// information is blank.
if (user.isEmpty() && pass.isEmpty())
{
user = FTP_LOGIN;
pass = FTP_PASSWD;
}
AuthInfo info;
info.url.setProtocol( "ftp" );
info.url.setHost( m_host );
info.url.setPort( m_port );
info.url.setUser( user );
TQCString tempbuf;
int failedAuth = 0;
do
{
// Check the cache and/or prompt user for password if 1st
// login attempt failed OR the user supplied a login name,
// but no password.
if ( failedAuth > 0 || (!user.isEmpty() && pass.isEmpty()) )
{
TQString errorMsg;
kdDebug(7102) << "Prompting user for login info..." << endl;
// Ask user if we should retry after when login fails!
if( failedAuth > 0 )
{
errorMsg = i18n("Message sent:\nLogin using username=%1 and "
"password=[hidden]\n\nServer replied:\n%2\n\n"
).arg(user).arg(ftpResponse(0));
}
if ( user != FTP_LOGIN )
info.username = user;
info.prompt = i18n("You need to supply a username and a password "
"to access this site.");
info.commentLabel = i18n( "Site:" );
info.comment = i18n("<b>%1</b>").arg( m_host );
info.keepPassword = true; // Prompt the user for persistence as well.
info.readOnly = (!m_user.isEmpty() && m_user != FTP_LOGIN);
bool disablePassDlg = config()->readBoolEntry( "DisablePassDlg", false );
if ( disablePassDlg || !openPassDlg( info, errorMsg ) )
{
error( ERR_USER_CANCELED, m_host );
return false;
}
else
{
user = info.username;
pass = info.password;
}
}
tempbuf = "USER ";
tempbuf += user.latin1();
if ( m_bUseProxy )
{
tempbuf += '@';
tempbuf += m_host.latin1();
if ( m_port > 0 && m_port != DEFAULT_FTP_PORT )
{
tempbuf += ':';
tempbuf += TQString::number(m_port).latin1();
}
}
kdDebug(7102) << "Sending Login name: " << tempbuf << endl;
bool loggedIn = ( ftpSendCmd(tempbuf) && (m_iRespCode == 230) );
bool needPass = (m_iRespCode == 331);
// Prompt user for login info if we do not
// get back a "230" or "331".
if ( !loggedIn && !needPass )
{
kdDebug(7102) << "Login failed: " << ftpResponse(0) << endl;
++failedAuth;
continue; // Well we failed, prompt the user please!!
}
if( needPass )
{
tempbuf = "pass ";
tempbuf += pass.latin1();
kdDebug(7102) << "Sending Login password: " << "[protected]" << endl;
loggedIn = ( ftpSendCmd(tempbuf) && (m_iRespCode == 230) );
}
if ( loggedIn )
{
// Do not cache the default login!!
if( user != FTP_LOGIN && pass != FTP_PASSWD )
cacheAuthentication( info );
failedAuth = -1;
}
} while( ++failedAuth );
kdDebug(7102) << "Login OK" << endl;
infoMessage( i18n("Login OK") );
// Okay, we're logged in. If this is IIS 4, switch dir listing style to Unix:
// Thanks to jk@soegaard.net (Jens Kristian S<>gaard) for this hint
if( ftpSendCmd("SYST") && (m_iRespType == 2) )
{
if( !strncmp( ftpResponse(0), "215 Windows_NT", 14 ) ) // should do for any version
{
ftpSendCmd( "site dirstyle" );
// Check if it was already in Unix style
// Patch from Keith Refson <Keith.Refson@earth.ox.ac.uk>
if( !strncmp( ftpResponse(0), "200 MSDOS-like directory output is on", 37 ))
//It was in Unix style already!
ftpSendCmd( "site dirstyle" );
// windows won't support chmod before KDE konquers their desktop...
m_extControl |= chmodUnknown;
}
}
else
kdWarning(7102) << "SYST failed" << endl;
if ( config()->readBoolEntry ("EnableAutoLoginMacro") )
ftpAutoLoginMacro ();
// Get the current working directory
kdDebug(7102) << "Searching for pwd" << endl;
if( !ftpSendCmd("PWD") || (m_iRespType != 2) )
{
kdDebug(7102) << "Couldn't issue pwd command" << endl;
error( ERR_COULD_NOT_LOGIN, i18n("Could not login to %1.").arg(m_host) ); // or anything better ?
return false;
}
TQString sTmp = remoteEncoding()->decode( ftpResponse(3) );
int iBeg = sTmp.find('"');
int iEnd = sTmp.findRev('"');
if(iBeg > 0 && iBeg < iEnd)
{
m_initialPath = sTmp.mid(iBeg+1, iEnd-iBeg-1);
if(m_initialPath[0] != '/') m_initialPath.prepend('/');
kdDebug(7102) << "Initial path set to: " << m_initialPath << endl;
m_currentPath = m_initialPath;
}
return true;
}
void Ftp::ftpAutoLoginMacro ()
{
TQString macro = metaData( "autoLoginMacro" );
if ( macro.isEmpty() )
return;
TQStringList list = TQStringList::split('\n', macro);
for(TQStringList::Iterator it = list.begin() ; it != list.end() ; ++it )
{
if ( (*it).startsWith("init") )
{
list = TQStringList::split( '\\', macro);
it = list.begin();
++it; // ignore the macro name
for( ; it != list.end() ; ++it )
{
// TODO: Add support for arbitrary commands
// besides simply changing directory!!
if ( (*it).startsWith( "cwd" ) )
ftpFolder( (*it).mid(4).stripWhiteSpace(), false );
}
break;
}
}
}
/**
* ftpSendCmd - send a command (@p cmd) and read response
*
* @param maxretries number of time it should retry. Since it recursively
* calls itself if it can't read the answer (this happens especially after
* timeouts), we need to limit the recursiveness ;-)
*
* return true if any response received, false on error
*/
bool Ftp::ftpSendCmd( const TQCString& cmd, int maxretries )
{
assert(m_control != NULL); // must have control connection socket
if ( cmd.find( '\r' ) != -1 || cmd.find( '\n' ) != -1)
{
kdWarning(7102) << "Invalid command received (contains CR or LF):"
<< cmd.data() << endl;
error( ERR_UNSUPPORTED_ACTION, m_host );
return false;
}
// Don't print out the password...
bool isPassCmd = (cmd.left(4).lower() == "pass");
if ( !isPassCmd )
kdDebug(7102) << "send> " << cmd.data() << endl;
else
kdDebug(7102) << "send> pass [protected]" << endl;
// Send the message...
TQCString buf = cmd;
buf += "\r\n"; // Yes, must use CR/LF - see http://cr.yp.to/ftp/request.html
int num = m_control->write(buf.data(), buf.length());
// If we were able to successfully send the command, then we will
// attempt to read the response. Otherwise, take action to re-attempt
// the login based on the maximum number of retires specified...
if( num > 0 )
ftpResponse(-1);
else
{ m_iRespType = m_iRespCode = 0;
m_control->textClear();
}
// If respCh is NULL or the response is 421 (Timed-out), we try to re-send
// the command based on the value of maxretries.
if( (m_iRespType <= 0) || (m_iRespCode == 421) )
{
// We have not yet logged on...
if (!m_bLoggedOn)
{
// The command was sent from the ftpLogin function, i.e. we are actually
// attempting to login in. NOTE: If we already sent the username, we
// return false and let the user decide whether (s)he wants to start from
// the beginning...
if (maxretries > 0 && !isPassCmd)
{
closeConnection ();
if( ftpOpenConnection(loginDefered) )
ftpSendCmd ( cmd, maxretries - 1 );
}
return false;
}
else
{
if ( maxretries < 1 )
return false;
else
{
kdDebug(7102) << "Was not able to communicate with " << m_host << endl
<< "Attempting to re-establish connection." << endl;
closeConnection(); // Close the old connection...
openConnection(); // Attempt to re-establish a new connection...
if (!m_bLoggedOn)
{
if (m_control != NULL) // if openConnection succeeded ...
{
kdDebug(7102) << "Login failure, aborting" << endl;
error (ERR_COULD_NOT_LOGIN, m_host);
closeConnection ();
}
return false;
}
kdDebug(7102) << "Logged back in, re-issuing command" << endl;
// If we were able to login, resend the command...
if (maxretries)
maxretries--;
return ftpSendCmd( cmd, maxretries );
}
}
}
return true;
}
/*
* ftpOpenPASVDataConnection - set up data connection, using PASV mode
*
* return 1 if successful, 0 otherwise
* doesn't set error message, since non-pasv mode will always be tried if
* this one fails
*/
int Ftp::ftpOpenPASVDataConnection()
{
assert(m_control != NULL); // must have control connection socket
assert(m_data == NULL); // ... but no data connection
// Check that we can do PASV
const KSocketAddress *sa = m_control->peerAddress();
if (sa != NULL && sa->family() != PF_INET)
return ERR_INTERNAL; // no PASV for non-PF_INET connections
const KInetSocketAddress *sin = static_cast<const KInetSocketAddress*>(sa);
if (m_extControl & pasvUnknown)
return ERR_INTERNAL; // already tried and got "unknown command"
m_bPasv = true;
/* Let's PASsiVe*/
if( !ftpSendCmd("PASV") || (m_iRespType != 2) )
{
kdDebug(7102) << "PASV attempt failed" << endl;
// unknown command?
if( m_iRespType == 5 )
{
kdDebug(7102) << "disabling use of PASV" << endl;
m_extControl |= pasvUnknown;
}
return ERR_INTERNAL;
}
// The usual answer is '227 Entering Passive Mode. (160,39,200,55,6,245)'
// but anonftpd gives '227 =160,39,200,55,6,245'
int i[6];
const char *start = strchr(ftpResponse(3), '(');
if ( !start )
start = strchr(ftpResponse(3), '=');
if ( !start ||
( sscanf(start, "(%d,%d,%d,%d,%d,%d)",&i[0], &i[1], &i[2], &i[3], &i[4], &i[5]) != 6 &&
sscanf(start, "=%d,%d,%d,%d,%d,%d", &i[0], &i[1], &i[2], &i[3], &i[4], &i[5]) != 6 ) )
{
kdError(7102) << "parsing IP and port numbers failed. String parsed: " << start << endl;
return ERR_INTERNAL;
}
// Make hostname and port number ...
int port = i[4] << 8 | i[5];
// we ignore the host part on purpose for two reasons
// a) it might be wrong anyway
// b) it would make us being suceptible to a port scanning attack
// now connect the data socket ...
m_data = new FtpSocket("PASV");
m_data->setAddress(sin->nodeName(), port);
kdDebug(7102) << "Connecting to " << sin->nodeName() << " on port " << port << endl;
return m_data->connectSocket(connectTimeout(), false);
}
/*
* ftpOpenEPSVDataConnection - opens a data connection via EPSV
*/
int Ftp::ftpOpenEPSVDataConnection()
{
assert(m_control != NULL); // must have control connection socket
assert(m_data == NULL); // ... but no data connection
const KSocketAddress *sa = m_control->peerAddress();
int portnum;
// we are sure sa is a KInetSocketAddress, because we asked for KExtendedSocket::inetSocket
// when we connected
const KInetSocketAddress *sin = static_cast<const KInetSocketAddress*>(sa);
if (m_extControl & epsvUnknown || sa == NULL)
return ERR_INTERNAL;
m_bPasv = true;
if( !ftpSendCmd("EPSV") || (m_iRespType != 2) )
{
// unknown command?
if( m_iRespType == 5 )
{
kdDebug(7102) << "disabling use of EPSV" << endl;
m_extControl |= epsvUnknown;
}
return ERR_INTERNAL;
}
const char *start = strchr(ftpResponse(3), '|');
if ( !start || sscanf(start, "|||%d|", &portnum) != 1)
return ERR_INTERNAL;
m_data = new FtpSocket("EPSV");
m_data->setAddress(sin->nodeName(), portnum);
return m_data->connectSocket(connectTimeout(), false) != 0;
}
/*
* ftpOpenEPRTDataConnection
* @return 0 on success, ERR_INTERNAL if mode not acceptable -or- a fatal error code
*/
int Ftp::ftpOpenEPRTDataConnection()
{
assert(m_control != NULL); // must have control connection socket
assert(m_data == NULL); // ... but no data connection
// yes, we are sure this is a KInetSocketAddress
const KInetSocketAddress *sin = static_cast<const KInetSocketAddress*>(m_control->localAddress());
m_bPasv = false;
if (m_extControl & eprtUnknown || sin == NULL)
return ERR_INTERNAL;
m_data = new FtpSocket("EPRT");
m_data->setHost(sin->nodeName());
m_data->setPort(0); // setting port to 0 will make us bind to a random, free port
m_data->setSocketFlags(KExtendedSocket::noResolve | KExtendedSocket::passiveSocket |
KExtendedSocket::inetSocket);
if (m_data->listen(1) < 0)
return ERR_COULD_NOT_LISTEN;
sin = static_cast<const KInetSocketAddress*>(m_data->localAddress());
if (sin == NULL)
return ERR_INTERNAL;
// TQString command = TQString::fromLatin1("eprt |%1|%2|%3|").arg(sin->ianaFamily())
// .arg(sin->nodeName())
// .arg(sin->port());
TQCString command;
command.sprintf("eprt |%d|%s|%d|", sin->ianaFamily(),
sin->nodeName().latin1(), sin->port());
// FIXME! Encoding for hostnames?
if( ftpSendCmd(command) && (m_iRespType == 2) )
return 0;
// unknown command?
if( m_iRespType == 5 )
{
kdDebug(7102) << "disabling use of EPRT" << endl;
m_extControl |= eprtUnknown;
}
return ERR_INTERNAL;
}
/*
* ftpOpenDataConnection - set up data connection
*
* The routine calls several ftpOpenXxxxConnection() helpers to find
* the best connection mode. If a helper cannot connect if returns
* ERR_INTERNAL - so this is not really an error! All other error
* codes are treated as fatal, e.g. they are passed back to the caller
* who is responsible for calling error(). ftpOpenPortDataConnection
* can be called as last try and it does never return ERR_INTERNAL.
*
* @return 0 if successful, err code otherwise
*/
int Ftp::ftpOpenDataConnection()
{
// make sure that we are logged on and have no data connection...
assert( m_bLoggedOn );
ftpCloseDataConnection();
int iErrCode = 0;
int iErrCodePASV = 0; // Remember error code from PASV
// First try passive (EPSV & PASV) modes
if( !config()->readBoolEntry("DisablePassiveMode", false) )
{
iErrCode = ftpOpenPASVDataConnection();
if(iErrCode == 0)
return 0; // success
iErrCodePASV = iErrCode;
ftpCloseDataConnection();
if( !config()->readBoolEntry("DisableEPSV", false) )
{
iErrCode = ftpOpenEPSVDataConnection();
if(iErrCode == 0)
return 0; // success
ftpCloseDataConnection();
}
// if we sent EPSV ALL already and it was accepted, then we can't
// use active connections any more
if (m_extControl & epsvAllSent)
return iErrCodePASV ? iErrCodePASV : iErrCode;
}
if( !config()->readBoolEntry("DisableEPRT", false) )
{
iErrCode = ftpOpenEPRTDataConnection();
if(iErrCode == 0)
return 0; // success
ftpCloseDataConnection();
}
// fall back to port mode
iErrCode = ftpOpenPortDataConnection();
if(iErrCode == 0)
return 0; // success
ftpCloseDataConnection();
// prefer to return the error code from PASV if any, since that's what should have worked in the first place
return iErrCodePASV ? iErrCodePASV : iErrCode;
}
/*
* ftpOpenPortDataConnection - set up data connection
*
* @return 0 if successfull, err code otherwise (but never ERR_INTERNAL
* because this is the last connection mode that is tried)
*/
int Ftp::ftpOpenPortDataConnection()
{
assert(m_control != NULL); // must have control connection socket
assert(m_data == NULL); // ... but no data connection
m_bPasv = false;
// create a socket, bind it and let it listen ...
m_data = new FtpSocket("PORT");
m_data->setSocketFlags(KExtendedSocket::noResolve | KExtendedSocket::passiveSocket |
KExtendedSocket::inetSocket);
// yes, we are sure this is a KInetSocketAddress
const KInetSocketAddress* pAddr = static_cast<const KInetSocketAddress*>(m_control->localAddress());
m_data->setAddress(pAddr->nodeName(), "0");
m_data->setAddressReusable(true);
if(m_data->listen(1) < 0)
return ERR_COULD_NOT_LISTEN;
struct linger lng = { 0, 0 };
if ( !m_data->setSocketOption(SO_LINGER, (char*)&lng, sizeof(lng)) )
return ERR_COULD_NOT_CREATE_SOCKET;
// send the PORT command ...
pAddr = static_cast<const KInetSocketAddress*>(m_data->localAddress());
struct sockaddr* psa = (struct sockaddr*)pAddr->addressV4();
unsigned char* pData = (unsigned char*)(psa->sa_data);
TQCString portCmd;
portCmd.sprintf("port %d,%d,%d,%d,%d,%d",
pData[2], pData[3], pData[4], pData[5], pData[0], pData[1]);
if( ftpSendCmd(portCmd) && (m_iRespType == 2) )
return 0;
return ERR_COULD_NOT_CONNECT;
}
/*
* ftpAcceptConnect - wait for incoming connection
* Used by @ref ftpOpenCommand
*
* return false on error or timeout
*/
int Ftp::ftpAcceptConnect()
{
assert(m_data != NULL);
if ( m_bPasv )
{
m_data->setServer(-1);
return true;
}
int sSock = m_data->fd();
struct sockaddr addr;
for(;;)
{
fd_set mask;
FD_ZERO(&mask);
FD_SET(sSock,&mask);
int r = KSocks::self()->select(sSock + 1, &mask, NULL, NULL, 0L);
if( r < 0 && errno != EINTR && errno != EAGAIN )
continue;
if( r > 0 )
break;
}
ksocklen_t l = sizeof(addr);
m_data->setServer( KSocks::self()->accept(sSock, &addr, &l) );
return (m_data->server() != -1);
}
bool Ftp::ftpOpenCommand( const char *_command, const TQString & _path, char _mode,
int errorcode, KIO::fileoffset_t _offset )
{
int errCode = 0;
if( !ftpDataMode(_mode) )
errCode = ERR_COULD_NOT_CONNECT;
else
errCode = ftpOpenDataConnection();
if(errCode != 0)
{
error(errCode, m_host);
return false;
}
if ( _offset > 0 ) {
// send rest command if offset > 0, this applies to retr and stor commands
char buf[100];
sprintf(buf, "rest %lld", _offset);
if ( !ftpSendCmd( buf ) )
return false;
if( m_iRespType != 3 )
{
error( ERR_CANNOT_RESUME, _path ); // should never happen
return false;
}
}
TQCString tmp = _command;
TQString errormessage;
if ( !_path.isEmpty() ) {
tmp += " ";
tmp += remoteEncoding()->encode(_path);
}
if( !ftpSendCmd( tmp ) || (m_iRespType != 1) )
{
if( _offset > 0 && strcmp(_command, "retr") == 0 && (m_iRespType == 4) )
errorcode = ERR_CANNOT_RESUME;
// The error here depends on the command
errormessage = _path;
}
else
{
// Only now we know for sure that we can resume
if ( _offset > 0 && strcmp(_command, "retr") == 0 )
canResume();
if( ftpAcceptConnect() )
{ m_bBusy = true; // cleared in ftpCloseCommand
return true;
}
errorcode = ERR_COULD_NOT_ACCEPT;
}
error(errorcode, errormessage);
return false;
}
bool Ftp::ftpCloseCommand()
{
// first close data sockets (if opened), then read response that
// we got for whatever was used in ftpOpenCommand ( should be 226 )
if(m_data)
{
delete m_data;
m_data = NULL;
}
if(!m_bBusy)
return true;
kdDebug(7102) << "ftpCloseCommand: reading command result" << endl;
m_bBusy = false;
if(!ftpResponse(-1) || (m_iRespType != 2) )
{
kdDebug(7102) << "ftpCloseCommand: no transfer complete message" << endl;
return false;
}
return true;
}
void Ftp::mkdir( const KURL & url, int permissions )
{
if( !ftpOpenConnection(loginImplicit) )
return;
TQString path = remoteEncoding()->encode(url);
TQCString buf = "mkd ";
buf += remoteEncoding()->encode(path);
if( !ftpSendCmd( buf ) || (m_iRespType != 2) )
{
TQString currentPath( m_currentPath );
// Check whether or not mkdir failed because
// the directory already exists...
if( ftpFolder( path, false ) )
{
error( ERR_DIR_ALREADY_EXIST, path );
// Change the directory back to what it was...
(void) ftpFolder( currentPath, false );
return;
}
error( ERR_COULD_NOT_MKDIR, path );
return;
}
if ( permissions != -1 )
{
// chmod the dir we just created, ignoring errors.
(void) ftpChmod( path, permissions );
}
finished();
}
void Ftp::rename( const KURL& src, const KURL& dst, bool overwrite )
{
if( !ftpOpenConnection(loginImplicit) )
return;
// The actual functionality is in ftpRename because put needs it
if ( ftpRename( src.path(), dst.path(), overwrite ) )
finished();
else
error( ERR_CANNOT_RENAME, src.path() );
}
bool Ftp::ftpRename( const TQString & src, const TQString & dst, bool overwrite )
{
assert( m_bLoggedOn );
// Must check if dst already exists, RNFR+RNTO overwrites by default (#127793).
if (!overwrite) {
if (ftpSize(dst, 'I')) {
error(ERR_FILE_ALREADY_EXIST, dst);
return false;
}
}
if (ftpFolder(dst, false)) {
error(ERR_DIR_ALREADY_EXIST, dst);
return false;
}
// Must check if dst already exists, RNFR+RNTO overwrites by default (#127793).
if (ftpFileExists(dst)) {
error(ERR_FILE_ALREADY_EXIST, dst);
return false;
}
if (ftpFolder(dst, false)) {
error(ERR_DIR_ALREADY_EXIST, dst);
return false;
}
int pos = src.findRev("/");
if( !ftpFolder(src.left(pos+1), false) )
return false;
TQCString from_cmd = "RNFR ";
from_cmd += remoteEncoding()->encode(src.mid(pos+1));
if( !ftpSendCmd( from_cmd ) || (m_iRespType != 3) )
return false;
TQCString to_cmd = "RNTO ";
to_cmd += remoteEncoding()->encode(dst);
if( !ftpSendCmd( to_cmd ) || (m_iRespType != 2) )
return false;
return true;
}
void Ftp::del( const KURL& url, bool isfile )
{
if( !ftpOpenConnection(loginImplicit) )
return;
// When deleting a directory, we must exit from it first
// The last command probably went into it (to stat it)
if ( !isfile )
ftpFolder(remoteEncoding()->directory(url), false); // ignore errors
TQCString cmd = isfile ? "DELE " : "RMD ";
cmd += remoteEncoding()->encode(url);
if( !ftpSendCmd( cmd ) || (m_iRespType != 2) )
error( ERR_CANNOT_DELETE, url.path() );
else
finished();
}
bool Ftp::ftpChmod( const TQString & path, int permissions )
{
assert( m_bLoggedOn );
if(m_extControl & chmodUnknown) // previous errors?
return false;
// we need to do bit AND 777 to get permissions, in case
// we were sent a full mode (unlikely)
TQCString cmd;
cmd.sprintf("SITE CHMOD %o ", permissions & 511 );
cmd += remoteEncoding()->encode(path);
ftpSendCmd(cmd);
if(m_iRespType == 2)
return true;
if(m_iRespCode == 500)
{
m_extControl |= chmodUnknown;
kdDebug(7102) << "ftpChmod: CHMOD not supported - disabling";
}
return false;
}
void Ftp::chmod( const KURL & url, int permissions )
{
if( !ftpOpenConnection(loginImplicit) )
return;
if ( !ftpChmod( url.path(), permissions ) )
error( ERR_CANNOT_CHMOD, url.path() );
else
finished();
}
void Ftp::ftpCreateUDSEntry( const TQString & filename, FtpEntry& ftpEnt, UDSEntry& entry, bool isDir )
{
assert(entry.count() == 0); // by contract :-)
UDSAtom atom;
atom.m_uds = UDS_NAME;
atom.m_str = filename;
entry.append( atom );
atom.m_uds = UDS_SIZE;
atom.m_long = ftpEnt.size;
entry.append( atom );
atom.m_uds = UDS_MODIFICATION_TIME;
atom.m_long = ftpEnt.date;
entry.append( atom );
atom.m_uds = UDS_ACCESS;
atom.m_long = ftpEnt.access;
entry.append( atom );
atom.m_uds = UDS_USER;
atom.m_str = ftpEnt.owner;
entry.append( atom );
if ( !ftpEnt.group.isEmpty() )
{
atom.m_uds = UDS_GROUP;
atom.m_str = ftpEnt.group;
entry.append( atom );
}
if ( !ftpEnt.link.isEmpty() )
{
atom.m_uds = UDS_LINK_DEST;
atom.m_str = ftpEnt.link;
entry.append( atom );
KMimeType::Ptr mime = KMimeType::findByURL( KURL("ftp://host/" + filename ) );
// Links on ftp sites are often links to dirs, and we have no way to check
// that. Let's do like Netscape : assume dirs generally.
// But we do this only when the mimetype can't be known from the filename.
// --> we do better than Netscape :-)
if ( mime->name() == KMimeType::defaultMimeType() )
{
kdDebug(7102) << "Setting guessed mime type to inode/directory for " << filename << endl;
atom.m_uds = UDS_GUESSED_MIME_TYPE;
atom.m_str = "inode/directory";
entry.append( atom );
isDir = true;
}
}
atom.m_uds = UDS_FILE_TYPE;
atom.m_long = isDir ? S_IFDIR : ftpEnt.type;
entry.append( atom );
/* atom.m_uds = UDS_ACCESS_TIME;
atom.m_long = buff.st_atime;
entry.append( atom );
atom.m_uds = UDS_CREATION_TIME;
atom.m_long = buff.st_ctime;
entry.append( atom ); */
}
void Ftp::ftpShortStatAnswer( const TQString& filename, bool isDir )
{
UDSEntry entry;
UDSAtom atom;
atom.m_uds = KIO::UDS_NAME;
atom.m_str = filename;
entry.append( atom );
atom.m_uds = KIO::UDS_FILE_TYPE;
atom.m_long = isDir ? S_IFDIR : S_IFREG;
entry.append( atom );
atom.m_uds = KIO::UDS_ACCESS;
atom.m_long = S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH;
entry.append( atom );
// No details about size, ownership, group, etc.
statEntry(entry);
finished();
}
void Ftp::ftpStatAnswerNotFound( const TQString & path, const TQString & filename )
{
// Only do the 'hack' below if we want to download an existing file (i.e. when looking at the "source")
// When e.g. uploading a file, we still need stat() to return "not found"
// when the file doesn't exist.
TQString statSide = metaData("statSide");
kdDebug(7102) << "Ftp::stat statSide=" << statSide << endl;
if ( statSide == "source" )
{
kdDebug(7102) << "Not found, but assuming found, because some servers don't allow listing" << endl;
// MS Server is incapable of handling "list <blah>" in a case insensitive way
// But "retr <blah>" works. So lie in stat(), to get going...
//
// There's also the case of ftp://ftp2.3ddownloads.com/90380/linuxgames/loki/patches/ut/ut-patch-436.run
// where listing permissions are denied, but downloading is still possible.
ftpShortStatAnswer( filename, false /*file, not dir*/ );
return;
}
error( ERR_DOES_NOT_EXIST, path );
}
void Ftp::stat( const KURL &url)
{
kdDebug(7102) << "Ftp::stat : path='" << url.path() << "'" << endl;
if( !ftpOpenConnection(loginImplicit) )
return;
TQString path = TQDir::cleanDirPath( url.path() );
kdDebug(7102) << "Ftp::stat : cleaned path='" << path << "'" << endl;
// We can't stat root, but we know it's a dir.
if( path.isEmpty() || path == "/" )
{
UDSEntry entry;
UDSAtom atom;
atom.m_uds = KIO::UDS_NAME;
atom.m_str = TQString::null;
entry.append( atom );
atom.m_uds = KIO::UDS_FILE_TYPE;
atom.m_long = S_IFDIR;
entry.append( atom );
atom.m_uds = KIO::UDS_ACCESS;
atom.m_long = S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH;
entry.append( atom );
atom.m_uds = KIO::UDS_USER;
atom.m_str = "root";
entry.append( atom );
atom.m_uds = KIO::UDS_GROUP;
entry.append( atom );
// no size
statEntry( entry );
finished();
return;
}
KURL tempurl( url );
tempurl.setPath( path ); // take the clean one
TQString listarg; // = tempurl.directory(false /*keep trailing slash*/);
TQString parentDir;
TQString filename = tempurl.fileName();
Q_ASSERT(!filename.isEmpty());
TQString search = filename;
// Try cwd into it, if it works it's a dir (and then we'll list the parent directory to get more info)
// if it doesn't work, it's a file (and then we'll use dir filename)
bool isDir = ftpFolder(path, false);
// if we're only interested in "file or directory", we should stop here
TQString sDetails = metaData("details");
int details = sDetails.isEmpty() ? 2 : sDetails.toInt();
kdDebug(7102) << "Ftp::stat details=" << details << endl;
if ( details == 0 )
{
if ( !isDir && !ftpSize( path, 'I' ) ) // ok, not a dir -> is it a file ?
{ // no -> it doesn't exist at all
ftpStatAnswerNotFound( path, filename );
return;
}
ftpShortStatAnswer( filename, isDir ); // successfully found a dir or a file -> done
return;
}
if (!isDir)
{
// It is a file or it doesn't exist, try going to parent directory
parentDir = tempurl.directory(false /*keep trailing slash*/);
// With files we can do "LIST <filename>" to avoid listing the whole dir
listarg = filename;
}
else
{
// --- New implementation:
// Don't list the parent dir. Too slow, might not show it, etc.
// Just return that it's a dir.
UDSEntry entry;
UDSAtom atom;
atom.m_uds = KIO::UDS_NAME;
atom.m_str = filename;
entry.append( atom );
atom.m_uds = KIO::UDS_FILE_TYPE;
atom.m_long = S_IFDIR;
entry.append( atom );
atom.m_uds = KIO::UDS_ACCESS;
atom.m_long = S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH;
entry.append( atom );
// No clue about size, ownership, group, etc.
statEntry(entry);
finished();
return;
// --- Old implementation:
#if 0
// It's a dir, remember that
// Reason: it could be a symlink to a dir, in which case ftpReadDir
// in the parent dir will have no idea about that. But we know better.
isDir = true;
// If the dir starts with '.', we'll need '-a' to see it in the listing.
if ( search[0] == '.' )
listarg = "-a";
parentDir = "..";
#endif
}
// Now cwd the parent dir, to prepare for listing
if( !ftpFolder(parentDir, true) )
return;
if( !ftpOpenCommand( "list", listarg, 'I', ERR_DOES_NOT_EXIST ) )
{
kdError(7102) << "COULD NOT LIST" << endl;
return;
}
kdDebug(7102) << "Starting of list was ok" << endl;
Q_ASSERT( !search.isEmpty() && search != "/" );
bool bFound = false;
KURL linkURL;
FtpEntry ftpEnt;
while( ftpReadDir(ftpEnt) )
{
// We look for search or filename, since some servers (e.g. ftp.tuwien.ac.at)
// return only the filename when doing "dir /full/path/to/file"
if ( !bFound )
{
if ( ( search == ftpEnt.name || filename == ftpEnt.name ) ) {
if ( !filename.isEmpty() ) {
bFound = true;
UDSEntry entry;
ftpCreateUDSEntry( filename, ftpEnt, entry, isDir );
statEntry( entry );
}
} else if ( isDir && ( ftpEnt.name == listarg || ftpEnt.name+'/' == listarg ) ) {
// Damn, the dir we're trying to list is in fact a symlink
// Follow it and try again
if ( ftpEnt.link.isEmpty() )
kdWarning(7102) << "Got " << listarg << " as answer, but empty link!" << endl;
else
{
linkURL = url;
kdDebug(7102) << "ftpEnt.link=" << ftpEnt.link << endl;
if ( ftpEnt.link[0] == '/' )
linkURL.setPath( ftpEnt.link ); // Absolute link
else
{
// Relative link (stat will take care of cleaning ../.. etc.)
linkURL.setPath( listarg ); // this is what we were listing (the link)
linkURL.setPath( linkURL.directory() ); // go up one dir
linkURL.addPath( ftpEnt.link ); // replace link by its destination
kdDebug(7102) << "linkURL now " << linkURL.prettyURL() << endl;
}
// Re-add the filename we're looking for
linkURL.addPath( filename );
}
bFound = true;
}
}
// kdDebug(7102) << ftpEnt.name << endl;
}
ftpCloseCommand(); // closes the data connection only
if ( !bFound )
{
ftpStatAnswerNotFound( path, filename );
return;
}
if ( !linkURL.isEmpty() )
{
if ( linkURL == url || linkURL == tempurl )
{
error( ERR_CYCLIC_LINK, linkURL.prettyURL() );
return;
}
stat( linkURL );
return;
}
kdDebug(7102) << "stat : finished successfully" << endl;
finished();
}
void Ftp::listDir( const KURL &url )
{
kdDebug(7102) << "Ftp::listDir " << url.prettyURL() << endl;
if( !ftpOpenConnection(loginImplicit) )
return;
// No path specified ?
TQString path = url.path();
if ( path.isEmpty() )
{
KURL realURL;
realURL.setProtocol( "ftp" );
if ( m_user != FTP_LOGIN )
realURL.setUser( m_user );
// We set the password, so that we don't ask for it if it was given
if ( m_pass != FTP_PASSWD )
realURL.setPass( m_pass );
realURL.setHost( m_host );
realURL.setPort( m_port );
if ( m_initialPath.isEmpty() )
m_initialPath = "/";
realURL.setPath( m_initialPath );
kdDebug(7102) << "REDIRECTION to " << realURL.prettyURL() << endl;
redirection( realURL );
finished();
return;
}
kdDebug(7102) << "hunting for path '" << path << "'" << endl;
if (!ftpOpenDir( path ) )
{
if ( ftpSize( path, 'I' ) ) // is it a file ?
{
error( ERR_IS_FILE, path );
return;
}
// not sure which to emit
//error( ERR_DOES_NOT_EXIST, path );
error( ERR_CANNOT_ENTER_DIRECTORY, path );
return;
}
UDSEntry entry;
FtpEntry ftpEnt;
while( ftpReadDir(ftpEnt) )
{
//kdDebug(7102) << ftpEnt.name << endl;
//Q_ASSERT( !ftpEnt.name.isEmpty() );
if ( !ftpEnt.name.isEmpty() )
{
//if ( S_ISDIR( (mode_t)ftpEnt.type ) )
// kdDebug(7102) << "is a dir" << endl;
//if ( !ftpEnt.link.isEmpty() )
// kdDebug(7102) << "is a link to " << ftpEnt.link << endl;
entry.clear();
ftpCreateUDSEntry( ftpEnt.name, ftpEnt, entry, false );
listEntry( entry, false );
}
}
listEntry( entry, true ); // ready
ftpCloseCommand(); // closes the data connection only
finished();
}
void Ftp::slave_status()
{
kdDebug(7102) << "Got slave_status host = " << (m_host.ascii() ? m_host.ascii() : "[None]") << " [" << (m_bLoggedOn ? "Connected" : "Not connected") << "]" << endl;
slaveStatus( m_host, m_bLoggedOn );
}
bool Ftp::ftpOpenDir( const TQString & path )
{
//TQString path( _url.path(-1) );
// We try to change to this directory first to see whether it really is a directory.
// (And also to follow symlinks)
TQString tmp = path.isEmpty() ? TQString("/") : path;
// We get '550', whether it's a file or doesn't exist...
if( !ftpFolder(tmp, false) )
return false;
// Don't use the path in the list command:
// We changed into this directory anyway - so it's enough just to send "list".
// We use '-a' because the application MAY be interested in dot files.
// The only way to really know would be to have a metadata flag for this...
// Since some windows ftp server seems not to support the -a argument, we use a fallback here.
// In fact we have to use -la otherwise -a removes the default -l (e.g. ftp.trolltech.com)
if( !ftpOpenCommand( "list -la", TQString::null, 'I', ERR_CANNOT_ENTER_DIRECTORY ) )
{
if ( !ftpOpenCommand( "list", TQString::null, 'I', ERR_CANNOT_ENTER_DIRECTORY ) )
{
kdWarning(7102) << "Can't open for listing" << endl;
return false;
}
}
kdDebug(7102) << "Starting of list was ok" << endl;
return true;
}
bool Ftp::ftpReadDir(FtpEntry& de)
{
assert(m_data != NULL);
// get a line from the data connecetion ...
while( !m_data->textEOF() )
{
if(m_data->textRead() <= 0)
continue;
if(m_data->textTooLong())
kdWarning(7102) << "ftpReadDir line too long - truncated" << endl;
const char* buffer = m_data->textLine();
kdDebug(7102) << "dir > " << buffer << endl;
//Normally the listing looks like
// -rw-r--r-- 1 dfaure dfaure 102 Nov 9 12:30 log
// but on Netware servers like ftp://ci-1.ci.pwr.wroc.pl/ it looks like (#76442)
// d [RWCEAFMS] Admin 512 Oct 13 2004 PSI
// we should always get the following 5 fields ...
const char *p_access, *p_junk, *p_owner, *p_group, *p_size;
if( (p_access = strtok((char*)buffer," ")) == 0) continue;
if( (p_junk = strtok(NULL," ")) == 0) continue;
if( (p_owner = strtok(NULL," ")) == 0) continue;
if( (p_group = strtok(NULL," ")) == 0) continue;
if( (p_size = strtok(NULL," ")) == 0) continue;
//kdDebug(7102) << "p_access=" << p_access << " p_junk=" << p_junk << " p_owner=" << p_owner << " p_group=" << p_group << " p_size=" << p_size << endl;
de.access = 0;
if ( strlen( p_access ) == 1 && p_junk[0] == '[' ) { // Netware
de.access = S_IRWXU | S_IRWXG | S_IRWXO; // unknown -> give all permissions
}
const char *p_date_1, *p_date_2, *p_date_3, *p_name;
// A special hack for "/dev". A listing may look like this:
// crw-rw-rw- 1 root root 1, 5 Jun 29 1997 zero
// So we just ignore the number in front of the ",". Ok, its a hack :-)
if ( strchr( p_size, ',' ) != 0L )
{
//kdDebug(7102) << "Size contains a ',' -> reading size again (/dev hack)" << endl;
if ((p_size = strtok(NULL," ")) == 0)
continue;
}
// Check whether the size we just read was really the size
// or a month (this happens when the server lists no group)
// Used to be the case on sunsite.uio.no, but not anymore
// This is needed for the Netware case, too.
if ( !isdigit( *p_size ) )
{
p_date_1 = p_size;
p_size = p_group;
p_group = 0;
//kdDebug(7102) << "Size didn't have a digit -> size=" << p_size << " date_1=" << p_date_1 << endl;
}
else
{
p_date_1 = strtok(NULL," ");
//kdDebug(7102) << "Size has a digit -> ok. p_date_1=" << p_date_1 << endl;
}
if ( p_date_1 != 0 &&
(p_date_2 = strtok(NULL," ")) != 0 &&
(p_date_3 = strtok(NULL," ")) != 0 &&
(p_name = strtok(NULL,"\r\n")) != 0 )
{
{
TQCString tmp( p_name );
if ( p_access[0] == 'l' )
{
int i = tmp.findRev( " -> " );
if ( i != -1 ) {
de.link = remoteEncoding()->decode(p_name + i + 4);
tmp.truncate( i );
}
else
de.link = TQString::null;
}
else
de.link = TQString::null;
if ( tmp[0] == '/' ) // listing on ftp://ftp.gnupg.org/ starts with '/'
tmp.remove( 0, 1 );
if (tmp.find('/') != -1)
continue; // Don't trick us!
// Some sites put more than one space between the date and the name
// e.g. ftp://ftp.uni-marburg.de/mirror/
de.name = remoteEncoding()->decode(tmp.stripWhiteSpace());
}
de.type = S_IFREG;
switch ( p_access[0] ) {
case 'd':
de.type = S_IFDIR;
break;
case 's':
de.type = S_IFSOCK;
break;
case 'b':
de.type = S_IFBLK;
break;
case 'c':
de.type = S_IFCHR;
break;
case 'l':
de.type = S_IFREG;
// we don't set S_IFLNK here. de.link says it.
break;
default:
break;
}
if ( p_access[1] == 'r' )
de.access |= S_IRUSR;
if ( p_access[2] == 'w' )
de.access |= S_IWUSR;
if ( p_access[3] == 'x' || p_access[3] == 's' )
de.access |= S_IXUSR;
if ( p_access[4] == 'r' )
de.access |= S_IRGRP;
if ( p_access[5] == 'w' )
de.access |= S_IWGRP;
if ( p_access[6] == 'x' || p_access[6] == 's' )
de.access |= S_IXGRP;
if ( p_access[7] == 'r' )
de.access |= S_IROTH;
if ( p_access[8] == 'w' )
de.access |= S_IWOTH;
if ( p_access[9] == 'x' || p_access[9] == 't' )
de.access |= S_IXOTH;
if ( p_access[3] == 's' || p_access[3] == 'S' )
de.access |= S_ISUID;
if ( p_access[6] == 's' || p_access[6] == 'S' )
de.access |= S_ISGID;
if ( p_access[9] == 't' || p_access[9] == 'T' )
de.access |= S_ISVTX;
de.owner = remoteEncoding()->decode(p_owner);
de.group = remoteEncoding()->decode(p_group);
de.size = charToLongLong(p_size);
// Parsing the date is somewhat tricky
// Examples : "Oct 6 22:49", "May 13 1999"
// First get current time - we need the current month and year
time_t currentTime = time( 0L );
struct tm * tmptr = gmtime( &currentTime );
int currentMonth = tmptr->tm_mon;
//kdDebug(7102) << "Current time :" << asctime( tmptr ) << endl;
// Reset time fields
tmptr->tm_isdst = -1; // We do not know anything about day saving time (of any random day of the year)
tmptr->tm_sec = 0;
tmptr->tm_min = 0;
tmptr->tm_hour = 0;
// Get day number (always second field)
tmptr->tm_mday = atoi( p_date_2 );
// Get month from first field
// NOTE : no, we don't want to use KLocale here
// It seems all FTP servers use the English way
//kdDebug(7102) << "Looking for month " << p_date_1 << endl;
static const char * s_months[12] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
for ( int c = 0 ; c < 12 ; c ++ )
if ( !strcmp( p_date_1, s_months[c]) )
{
//kdDebug(7102) << "Found month " << c << " for " << p_date_1 << endl;
tmptr->tm_mon = c;
break;
}
// Parse third field
if ( strlen( p_date_3 ) == 4 ) // 4 digits, looks like a year
tmptr->tm_year = atoi( p_date_3 ) - 1900;
else
{
// otherwise, the year is implicit
// according to man ls, this happens when it is between than 6 months
// old and 1 hour in the future.
// So the year is : current year if tm_mon <= currentMonth+1
// otherwise current year minus one
// (The +1 is a security for the "+1 hour" at the end of the month issue)
if ( tmptr->tm_mon > currentMonth + 1 )
tmptr->tm_year--;
// and p_date_3 contains probably a time
char * semicolon;
if ( ( semicolon = (char*)strchr( p_date_3, ':' ) ) )
{
*semicolon = '\0';
tmptr->tm_min = atoi( semicolon + 1 );
tmptr->tm_hour = atoi( p_date_3 );
}
else
kdWarning(7102) << "Can't parse third field " << p_date_3 << endl;
}
//kdDebug(7102) << asctime( tmptr ) << endl;
de.date = mktime( tmptr );
return true;
}
} // line invalid, loop to get another line
return false;
}
//===============================================================================
// public: get download file from server
// helper: ftpGet called from get() and copy()
//===============================================================================
void Ftp::get( const KURL & url )
{
kdDebug(7102) << "Ftp::get " << url.url() << endl;
int iError = 0;
ftpGet(iError, -1, url, 0); // iError gets status
if(iError) // can have only server side errs
error(iError, url.path());
ftpCloseCommand(); // must close command!
}
Ftp::StatusCode Ftp::ftpGet(int& iError, int iCopyFile, const KURL& url, KIO::fileoffset_t llOffset)
{
// Calls error() by itself!
if( !ftpOpenConnection(loginImplicit) )
return statusServerError;
// Try to find the size of the file (and check that it exists at
// the same time). If we get back a 550, "File does not exist"
// or "not a plain file", check if it is a directory. If it is a
// directory, return an error; otherwise simply try to retrieve
// the request...
if ( !ftpSize( url.path(), '?' ) && (m_iRespCode == 550) &&
ftpFolder(url.path(), false) )
{
// Ok it's a dir in fact
kdDebug(7102) << "ftpGet: it is a directory in fact" << endl;
iError = ERR_IS_DIRECTORY;
return statusServerError;
}
TQString resumeOffset = metaData("resume");
if ( !resumeOffset.isEmpty() )
{
llOffset = resumeOffset.toLongLong();
kdDebug(7102) << "ftpGet: got offset from metadata : " << llOffset << endl;
}
if( !ftpOpenCommand("retr", url.path(), '?', ERR_CANNOT_OPEN_FOR_READING, llOffset) )
{
kdWarning(7102) << "ftpGet: Can't open for reading" << endl;
return statusServerError;
}
// Read the size from the response string
if(m_size == UnknownSize)
{
const char* psz = strrchr( ftpResponse(4), '(' );
if(psz) m_size = charToLongLong(psz+1);
if (!m_size) m_size = UnknownSize;
}
KIO::filesize_t bytesLeft = 0;
if ( m_size != UnknownSize )
bytesLeft = m_size - llOffset;
kdDebug(7102) << "ftpGet: starting with offset=" << llOffset << endl;
KIO::fileoffset_t processed_size = llOffset;
TQByteArray array;
bool mimetypeEmitted = false;
char buffer[maximumIpcSize];
// start whith small data chunks in case of a slow data source (modem)
// - unfortunately this has a negative impact on performance for large
// - files - so we will increase the block size after a while ...
int iBlockSize = initialIpcSize;
int iBufferCur = 0;
while(m_size == UnknownSize || bytesLeft > 0)
{ // let the buffer size grow if the file is larger 64kByte ...
if(processed_size-llOffset > 1024 * 64)
iBlockSize = maximumIpcSize;
// read the data and detect EOF or error ...
if(iBlockSize+iBufferCur > (int)sizeof(buffer))
iBlockSize = sizeof(buffer) - iBufferCur;
int n = m_data->read( buffer+iBufferCur, iBlockSize );
if(n <= 0)
{ // this is how we detect EOF in case of unknown size
if( m_size == UnknownSize && n == 0 )
break;
// unexpected eof. Happens when the daemon gets killed.
iError = ERR_COULD_NOT_READ;
return statusServerError;
}
processed_size += n;
// collect very small data chunks in buffer before processing ...
if(m_size != UnknownSize)
{
bytesLeft -= n;
iBufferCur += n;
if(iBufferCur < mimimumMimeSize && bytesLeft > 0)
{
processedSize( processed_size );
continue;
}
n = iBufferCur;
iBufferCur = 0;
}
// get the mime type and set the total size ...
if(!mimetypeEmitted)
{
mimetypeEmitted = true;
// We need a KMimeType::findByNameAndContent(data,filename)
// For now we do: find by extension, and if not found (or extension not reliable)
// then find by content.
bool accurate = false;
KMimeType::Ptr mime = KMimeType::findByURL( url, 0, false, true, &accurate );
if ( !mime || mime->name() == KMimeType::defaultMimeType()
|| !accurate )
{
array.setRawData(buffer, n);
KMimeMagicResult * result = KMimeMagic::self()->findBufferFileType(array, url.fileName());
array.resetRawData(buffer, n);
if ( result->mimeType() != KMimeType::defaultMimeType() )
mime = KMimeType::mimeType( result->mimeType() );
}
kdDebug(7102) << "ftpGet: Emitting mimetype " << mime->name() << endl;
mimeType( mime->name() );
if( m_size != UnknownSize ) // Emit total size AFTER mimetype
totalSize( m_size );
}
// write output file or pass to data pump ...
if(iCopyFile == -1)
{
array.setRawData(buffer, n);
data( array );
array.resetRawData(buffer, n);
}
else if( (iError = WriteToFile(iCopyFile, buffer, n)) != 0)
return statusClientError; // client side error
processedSize( processed_size );
}
kdDebug(7102) << "ftpGet: done" << endl;
if(iCopyFile == -1) // must signal EOF to data pump ...
data(array); // array is empty and must be empty!
processedSize( m_size == UnknownSize ? processed_size : m_size );
kdDebug(7102) << "ftpGet: emitting finished()" << endl;
finished();
return statusSuccess;
}
/*
void Ftp::mimetype( const KURL& url )
{
if( !ftpOpenConnection(loginImplicit) )
return;
if ( !ftpOpenCommand( "retr", url.path(), 'I', ERR_CANNOT_OPEN_FOR_READING, 0 ) ) {
kdWarning(7102) << "Can't open for reading" << endl;
return;
}
char buffer[ 2048 ];
TQByteArray array;
// Get one chunk of data only and send it, KIO::Job will determine the
// mimetype from it using KMimeMagic
int n = m_data->read( buffer, 2048 );
array.setRawData(buffer, n);
data( array );
array.resetRawData(buffer, n);
kdDebug(7102) << "aborting" << endl;
ftpAbortTransfer();
kdDebug(7102) << "finished" << endl;
finished();
kdDebug(7102) << "after finished" << endl;
}
void Ftp::ftpAbortTransfer()
{
// RFC 959, page 34-35
// IAC (interpret as command) = 255 ; IP (interrupt process) = 254
// DM = 242 (data mark)
char msg[4];
// 1. User system inserts the Telnet "Interrupt Process" (IP) signal
// in the Telnet stream.
msg[0] = (char) 255; //IAC
msg[1] = (char) 254; //IP
(void) send(sControl, msg, 2, 0);
// 2. User system sends the Telnet "Sync" signal.
msg[0] = (char) 255; //IAC
msg[1] = (char) 242; //DM
if (send(sControl, msg, 2, MSG_OOB) != 2)
; // error...
// Send ABOR
kdDebug(7102) << "send ABOR" << endl;
TQCString buf = "ABOR\r\n";
if ( KSocks::self()->write( sControl, buf.data(), buf.length() ) <= 0 ) {
error( ERR_COULD_NOT_WRITE, TQString::null );
return;
}
//
kdDebug(7102) << "read resp" << endl;
if ( readresp() != '2' )
{
error( ERR_COULD_NOT_READ, TQString::null );
return;
}
kdDebug(7102) << "close sockets" << endl;
closeSockets();
}
*/
//===============================================================================
// public: put upload file to server
// helper: ftpPut called from put() and copy()
//===============================================================================
void Ftp::put(const KURL& url, int permissions, bool overwrite, bool resume)
{
kdDebug(7102) << "Ftp::put " << url.url() << endl;
int iError = 0; // iError gets status
ftpPut(iError, -1, url, permissions, overwrite, resume);
if(iError) // can have only server side errs
error(iError, url.path());
ftpCloseCommand(); // must close command!
}
Ftp::StatusCode Ftp::ftpPut(int& iError, int iCopyFile, const KURL& dest_url,
int permissions, bool overwrite, bool resume)
{
if( !ftpOpenConnection(loginImplicit) )
return statusServerError;
// Don't use mark partial over anonymous FTP.
// My incoming dir allows put but not rename...
bool bMarkPartial;
if (m_user.isEmpty () || m_user == FTP_LOGIN)
bMarkPartial = false;
else
bMarkPartial = config()->readBoolEntry("MarkPartial", true);
TQString dest_orig = dest_url.path();
TQString dest_part( dest_orig );
dest_part += ".part";
if ( ftpSize( dest_orig, 'I' ) )
{
if ( m_size == 0 )
{ // delete files with zero size
TQCString cmd = "DELE ";
cmd += remoteEncoding()->encode(dest_orig);
if( !ftpSendCmd( cmd ) || (m_iRespType != 2) )
{
iError = ERR_CANNOT_DELETE_PARTIAL;
return statusServerError;
}
}
else if ( !overwrite && !resume )
{
iError = ERR_FILE_ALREADY_EXIST;
return statusServerError;
}
else if ( bMarkPartial )
{ // when using mark partial, append .part extension
if ( !ftpRename( dest_orig, dest_part, true ) )
{
iError = ERR_CANNOT_RENAME_PARTIAL;
return statusServerError;
}
}
// Don't chmod an existing file
permissions = -1;
}
else if ( bMarkPartial && ftpSize( dest_part, 'I' ) )
{ // file with extension .part exists
if ( m_size == 0 )
{ // delete files with zero size
TQCString cmd = "DELE ";
cmd += remoteEncoding()->encode(dest_part);
if ( !ftpSendCmd( cmd ) || (m_iRespType != 2) )
{
iError = ERR_CANNOT_DELETE_PARTIAL;
return statusServerError;
}
}
else if ( !overwrite && !resume )
{
resume = canResume (m_size);
if (!resume)
{
iError = ERR_FILE_ALREADY_EXIST;
return statusServerError;
}
}
}
else
m_size = 0;
TQString dest;
// if we are using marking of partial downloads -> add .part extension
if ( bMarkPartial ) {
kdDebug(7102) << "Adding .part extension to " << dest_orig << endl;
dest = dest_part;
} else
dest = dest_orig;
KIO::fileoffset_t offset = 0;
// set the mode according to offset
if( resume && m_size > 0 )
{
offset = m_size;
if(iCopyFile != -1)
{
if( KDE_lseek(iCopyFile, offset, SEEK_SET) < 0 )
{
iError = ERR_CANNOT_RESUME;
return statusClientError;
}
}
}
if (! ftpOpenCommand( "stor", dest, '?', ERR_COULD_NOT_WRITE, offset ) )
return statusServerError;
kdDebug(7102) << "ftpPut: starting with offset=" << offset << endl;
KIO::fileoffset_t processed_size = offset;
TQByteArray buffer;
int result;
int iBlockSize = initialIpcSize;
// Loop until we got 'dataEnd'
do
{
if(iCopyFile == -1)
{
dataReq(); // Request for data
result = readData( buffer );
}
else
{ // let the buffer size grow if the file is larger 64kByte ...
if(processed_size-offset > 1024 * 64)
iBlockSize = maximumIpcSize;
buffer.resize(iBlockSize);
result = ::read(iCopyFile, buffer.data(), buffer.size());
if(result < 0)
iError = ERR_COULD_NOT_WRITE;
else
buffer.resize(result);
}
if (result > 0)
{
m_data->write( buffer.data(), buffer.size() );
processed_size += result;
processedSize (processed_size);
}
}
while ( result > 0 );
if (result != 0) // error
{
ftpCloseCommand(); // don't care about errors
kdDebug(7102) << "Error during 'put'. Aborting." << endl;
if (bMarkPartial)
{
// Remove if smaller than minimum size
if ( ftpSize( dest, 'I' ) &&
( processed_size < (unsigned long) config()->readNumEntry("MinimumKeepSize", DEFAULT_MINIMUM_KEEP_SIZE) ) )
{
TQCString cmd = "DELE ";
cmd += remoteEncoding()->encode(dest);
(void) ftpSendCmd( cmd );
}
}
return statusServerError;
}
if ( !ftpCloseCommand() )
{
iError = ERR_COULD_NOT_WRITE;
return statusServerError;
}
// after full download rename the file back to original name
if ( bMarkPartial )
{
kdDebug(7102) << "renaming dest (" << dest << ") back to dest_orig (" << dest_orig << ")" << endl;
if ( !ftpRename( dest, dest_orig, true ) )
{
iError = ERR_CANNOT_RENAME_PARTIAL;
return statusServerError;
}
}
// set final permissions
if ( permissions != -1 )
{
if ( m_user == FTP_LOGIN )
kdDebug(7102) << "Trying to chmod over anonymous FTP ???" << endl;
// chmod the file we just put
if ( ! ftpChmod( dest_orig, permissions ) )
{
// To be tested
//if ( m_user != FTP_LOGIN )
// warning( i18n( "Could not change permissions for\n%1" ).arg( dest_orig ) );
}
}
// We have done our job => finish
finished();
return statusSuccess;
}
/** Use the SIZE command to get the file size.
Warning : the size depends on the transfer mode, hence the second arg. */
bool Ftp::ftpSize( const TQString & path, char mode )
{
m_size = UnknownSize;
if( !ftpDataMode(mode) )
return false;
TQCString buf;
buf = "SIZE ";
buf += remoteEncoding()->encode(path);
if( !ftpSendCmd( buf ) || (m_iRespType != 2) )
return false;
// skip leading "213 " (response code)
const char* psz = ftpResponse(4);
if(!psz)
return false;
m_size = charToLongLong(psz);
if (!m_size) m_size = UnknownSize;
return true;
}
bool Ftp::ftpFileExists(const TQString& path)
{
TQCString buf;
buf = "SIZE ";
buf += remoteEncoding()->encode(path);
if( !ftpSendCmd( buf ) || (m_iRespType != 2) )
return false;
// skip leading "213 " (response code)
const char* psz = ftpResponse(4);
return psz != 0;
}
// Today the differences between ASCII and BINARY are limited to
// CR or CR/LF line terminators. Many servers ignore ASCII (like
// win2003 -or- vsftp with default config). In the early days of
// computing, when even text-files had structure, this stuff was
// more important.
// Theoretically "list" could return different results in ASCII
// and BINARY mode. But again, most servers ignore ASCII here.
bool Ftp::ftpDataMode(char cMode)
{
if(cMode == '?') cMode = m_bTextMode ? 'A' : 'I';
else if(cMode == 'a') cMode = 'A';
else if(cMode != 'A') cMode = 'I';
kdDebug(7102) << "ftpDataMode: want '" << cMode << "' has '" << m_cDataMode << "'" << endl;
if(m_cDataMode == cMode)
return true;
TQCString buf;
buf.sprintf("TYPE %c", cMode);
if( !ftpSendCmd(buf) || (m_iRespType != 2) )
return false;
m_cDataMode = cMode;
return true;
}
bool Ftp::ftpFolder(const TQString& path, bool bReportError)
{
TQString newPath = path;
int iLen = newPath.length();
if(iLen > 1 && newPath[iLen-1] == '/') newPath.truncate(iLen-1);
//kdDebug(7102) << "ftpFolder: want '" << newPath << "' has '" << m_currentPath << "'" << endl;
if(m_currentPath == newPath)
return true;
TQCString tmp = "cwd ";
tmp += remoteEncoding()->encode(newPath);
if( !ftpSendCmd(tmp) )
return false; // connection failure
if(m_iRespType != 2)
{
if(bReportError)
error(ERR_CANNOT_ENTER_DIRECTORY, path);
return false; // not a folder
}
m_currentPath = newPath;
return true;
}
//===============================================================================
// public: copy don't use kio data pump if one side is a local file
// helper: ftpCopyPut called from copy() on upload
// helper: ftpCopyGet called from copy() on download
//===============================================================================
void Ftp::copy( const KURL &src, const KURL &dest, int permissions, bool overwrite )
{
int iError = 0;
int iCopyFile = -1;
StatusCode cs = statusSuccess;
bool bSrcLocal = src.isLocalFile();
bool bDestLocal = dest.isLocalFile();
TQString sCopyFile;
if(bSrcLocal && !bDestLocal) // File -> Ftp
{
sCopyFile = src.path();
kdDebug(7102) << "Ftp::copy local file '" << sCopyFile << "' -> ftp '" << dest.path() << "'" << endl;
cs = ftpCopyPut(iError, iCopyFile, sCopyFile, dest, permissions, overwrite);
if( cs == statusServerError) sCopyFile = dest.url();
}
else if(!bSrcLocal && bDestLocal) // Ftp -> File
{
sCopyFile = dest.path();
kdDebug(7102) << "Ftp::copy ftp '" << src.path() << "' -> local file '" << sCopyFile << "'" << endl;
cs = ftpCopyGet(iError, iCopyFile, sCopyFile, src, permissions, overwrite);
if( cs == statusServerError ) sCopyFile = src.url();
}
else {
error( ERR_UNSUPPORTED_ACTION, TQString::null );
return;
}
// perform clean-ups and report error (if any)
if(iCopyFile != -1)
::close(iCopyFile);
if(iError)
error(iError, sCopyFile);
ftpCloseCommand(); // must close command!
}
Ftp::StatusCode Ftp::ftpCopyPut(int& iError, int& iCopyFile, TQString sCopyFile,
const KURL& url, int permissions, bool overwrite)
{
// check if source is ok ...
KDE_struct_stat buff;
TQCString sSrc( TQFile::encodeName(sCopyFile) );
bool bSrcExists = (KDE_stat( sSrc.data(), &buff ) != -1);
if(bSrcExists)
{ if(S_ISDIR(buff.st_mode))
{
iError = ERR_IS_DIRECTORY;
return statusClientError;
}
}
else
{
iError = ERR_DOES_NOT_EXIST;
return statusClientError;
}
iCopyFile = KDE_open( sSrc.data(), O_RDONLY );
if(iCopyFile == -1)
{
iError = ERR_CANNOT_OPEN_FOR_READING;
return statusClientError;
}
// delegate the real work (iError gets status) ...
totalSize(buff.st_size);
#ifdef ENABLE_CAN_RESUME
return ftpPut(iError, iCopyFile, url, permissions, overwrite, false);
#else
return ftpPut(iError, iCopyFile, url, permissions, overwrite, true);
#endif
}
Ftp::StatusCode Ftp::ftpCopyGet(int& iError, int& iCopyFile, const TQString sCopyFile,
const KURL& url, int permissions, bool overwrite)
{
// check if destination is ok ...
KDE_struct_stat buff;
TQCString sDest( TQFile::encodeName(sCopyFile) );
bool bDestExists = (KDE_stat( sDest.data(), &buff ) != -1);
if(bDestExists)
{ if(S_ISDIR(buff.st_mode))
{
iError = ERR_IS_DIRECTORY;
return statusClientError;
}
if(!overwrite)
{
iError = ERR_FILE_ALREADY_EXIST;
return statusClientError;
}
}
// do we have a ".part" file?
TQCString sPart = TQFile::encodeName(sCopyFile + ".part");
bool bResume = false;
bool bPartExists = (KDE_stat( sPart.data(), &buff ) != -1);
const bool bMarkPartial = config()->readBoolEntry("MarkPartial", true);
if(!bMarkPartial)
{
sPart = TQFile::encodeName(sCopyFile);
}
else if(bPartExists && buff.st_size > 0)
{ // must not be a folder! please fix a similar bug in kio_file!!
if(S_ISDIR(buff.st_mode))
{
iError = ERR_DIR_ALREADY_EXIST;
return statusClientError; // client side error
}
//doesn't work for copy? -> design flaw?
#ifdef ENABLE_CAN_RESUME
bResume = canResume( buff.st_size );
#else
bResume = true;
#endif
}
if(bPartExists && !bResume) // get rid of an unwanted ".part" file
remove(sPart.data());
// JPF: in kio_file overwrite disables ".part" operations. I do not believe
// JPF: that this is a good behaviour!
if(bDestExists) // must delete for overwrite
remove(sDest.data());
// WABA: Make sure that we keep writing permissions ourselves,
// otherwise we can be in for a surprise on NFS.
mode_t initialMode;
if (permissions != -1)
initialMode = permissions | S_IWUSR;
else
initialMode = 0666;
// open the output file ...
KIO::fileoffset_t hCopyOffset = 0;
if(bResume)
{
iCopyFile = KDE_open( sPart.data(), O_RDWR ); // append if resuming
hCopyOffset = KDE_lseek(iCopyFile, 0, SEEK_END);
if(hCopyOffset < 0)
{
iError = ERR_CANNOT_RESUME;
return statusClientError; // client side error
}
kdDebug(7102) << "copy: resuming at " << hCopyOffset << endl;
}
else
iCopyFile = KDE_open(sPart.data(), O_CREAT | O_TRUNC | O_WRONLY, initialMode);
if(iCopyFile == -1)
{
kdDebug(7102) << "copy: ### COULD NOT WRITE " << sCopyFile << endl;
iError = (errno == EACCES) ? ERR_WRITE_ACCESS_DENIED
: ERR_CANNOT_OPEN_FOR_WRITING;
return statusClientError;
}
// delegate the real work (iError gets status) ...
StatusCode iRes = ftpGet(iError, iCopyFile, url, hCopyOffset);
if( ::close(iCopyFile) && iRes == statusSuccess )
{
iError = ERR_COULD_NOT_WRITE;
iRes = statusClientError;
}
// handle renaming or deletion of a partial file ...
if(bMarkPartial)
{
if(iRes == statusSuccess)
{ // rename ".part" on success
if ( ::rename( sPart.data(), sDest.data() ) )
{
kdDebug(7102) << "copy: cannot rename " << sPart << " to " << sDest << endl;
iError = ERR_CANNOT_RENAME_PARTIAL;
iRes = statusClientError;
}
}
else if(KDE_stat( sPart.data(), &buff ) == 0)
{ // should a very small ".part" be deleted?
int size = config()->readNumEntry("MinimumKeepSize", DEFAULT_MINIMUM_KEEP_SIZE);
if (buff.st_size < size)
remove(sPart.data());
}
}
return iRes;
}
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