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Diffstat (limited to 'kioslave/ftp/ftp.cc')
| -rw-r--r-- | kioslave/ftp/ftp.cc | 2652 |
1 files changed, 2652 insertions, 0 deletions
diff --git a/kioslave/ftp/ftp.cc b/kioslave/ftp/ftp.cc new file mode 100644 index 000000000..4da1912d7 --- /dev/null +++ b/kioslave/ftp/ftp.cc @@ -0,0 +1,2652 @@ +// -*- 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 <qdir.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 QString::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 QString::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; + QString 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 QCString &pool, const QCString &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 QString& _host, int _port, const QString& _user, + const QString& _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, QString::null ); + return false; + } + + assert( !m_bLoggedOn ); + + m_initialPath = QString::null; + m_currentPath = QString::null; + + QString 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 QString &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; + QString 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 ); + + QString user = m_user; + QString pass = m_pass; + + if ( config()->readBoolEntry("EnableAutoLogin") ) + { + QString 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 ); + + QCString 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()) ) + { + QString 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 += QString::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 Søgaard) 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; + } + + QString 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 () +{ + QString macro = metaData( "autoLoginMacro" ); + + if ( macro.isEmpty() ) + return; + + QStringList list = QStringList::split('\n', macro); + + for(QStringList::Iterator it = list.begin() ; it != list.end() ; ++it ) + { + if ( (*it).startsWith("init") ) + { + list = QStringList::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 QCString& 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... + QCString 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; + + // QString command = QString::fromLatin1("eprt |%1|%2|%3|").arg(sin->ianaFamily()) + // .arg(sin->nodeName()) + // .arg(sin->port()); + QCString 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); + QCString 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 QString & _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; + } + } + + QCString tmp = _command; + QString 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; + + QString path = remoteEncoding()->encode(url); + QCString buf = "mkd "; + buf += remoteEncoding()->encode(path); + + if( !ftpSendCmd( buf ) || (m_iRespType != 2) ) + { + QString 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 QString & src, const QString & 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; + } + + int pos = src.findRev("/"); + if( !ftpFolder(src.left(pos+1), false) ) + return false; + + QCString from_cmd = "RNFR "; + from_cmd += remoteEncoding()->encode(src.mid(pos+1)); + if( !ftpSendCmd( from_cmd ) || (m_iRespType != 3) ) + return false; + + QCString 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 + + QCString 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 QString & 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) + QCString 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 QString & 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 QString& 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 QString & path, const QString & 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. + QString 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; + + QString path = QDir::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 = QString::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 + QString listarg; // = tempurl.directory(false /*keep trailing slash*/); + QString parentDir; + QString filename = tempurl.fileName(); + Q_ASSERT(!filename.isEmpty()); + QString 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 + QString 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 ? + QString 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 QString & path ) +{ + //QString 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) + QString tmp = path.isEmpty() ? QString("/") : 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", QString::null, 'I', ERR_CANNOT_ENTER_DIRECTORY ) ) + { + if ( !ftpOpenCommand( "list", QString::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 ) + { + { + QCString 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 = QString::null; + } + else + de.link = QString::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( ¤tTime ); + 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; + } + + QString 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; + + QByteArray 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 ]; + QByteArray 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; + QCString buf = "ABOR\r\n"; + if ( KSocks::self()->write( sControl, buf.data(), buf.length() ) <= 0 ) { + error( ERR_COULD_NOT_WRITE, QString::null ); + return; + } + + // + kdDebug(7102) << "read resp" << endl; + if ( readresp() != '2' ) + { + error( ERR_COULD_NOT_READ, QString::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); + + QString dest_orig = dest_url.path(); + QString dest_part( dest_orig ); + dest_part += ".part"; + + if ( ftpSize( dest_orig, 'I' ) ) + { + if ( m_size == 0 ) + { // delete files with zero size + QCString 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 + QCString 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; + + QString 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; + + QByteArray 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) ) ) + { + QCString 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 QString & path, char mode ) +{ + m_size = UnknownSize; + if( !ftpDataMode(mode) ) + return false; + + QCString 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; +} + +// 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; + + QCString buf; + buf.sprintf("TYPE %c", cMode); + if( !ftpSendCmd(buf) || (m_iRespType != 2) ) + return false; + m_cDataMode = cMode; + return true; +} + + +bool Ftp::ftpFolder(const QString& path, bool bReportError) +{ + QString 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; + + QCString 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(); + QString 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, QString::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, QString sCopyFile, + const KURL& url, int permissions, bool overwrite) +{ + // check if source is ok ... + KDE_struct_stat buff; + QCString sSrc( QFile::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 QString sCopyFile, + const KURL& url, int permissions, bool overwrite) +{ + // check if destination is ok ... + KDE_struct_stat buff; + QCString sDest( QFile::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? + QCString sPart = QFile::encodeName(sCopyFile + ".part"); + bool bResume = false; + bool bPartExists = (KDE_stat( sPart.data(), &buff ) != -1); + const bool bMarkPartial = config()->readBoolEntry("MarkPartial", true); + + if(!bMarkPartial) + { + sPart = QFile::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; +} |