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fish.cpp
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fish.cpp
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/*
fish.cpp - a FISH KIO worker
SPDX-FileCopyrightText: 2001 Jörg Walter <trouble@garni.ch>
SPDX-License-Identifier: GPL-2.0-only
*/
/*
This code contains fragments and ideas from the ftp KIO worker
done by David Faure <faure@kde.org>.
Structure is a bit complicated, since I made the mistake to use
KProcess... now there is a lightweight homebrew async IO system
inside, but if signals/slots become available for KIO workers, switching
back to KProcess should be easy.
*/
#include "fish.h"
#include <config-fish.h>
#include <config-runtime.h>
#include <QCoreApplication>
#include <QDataStream>
#include <QDateTime>
#include <QDebug>
#include <QFile>
#include <QMimeDatabase>
#include <QMimeType>
#include <QRegularExpression>
#include <QStandardPaths>
#include <stdlib.h>
#include <sys/resource.h>
#ifdef HAVE_PTY_H
#include <pty.h>
#endif
#ifdef HAVE_TERMIOS_H
#include <termios.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_LIBUTIL_H
#include <libutil.h>
#endif
#ifdef HAVE_UTIL_H
#include <util.h>
#endif
#ifndef Q_OS_WIN
#include <errno.h>
#endif
#include <KLocalizedString>
#include <KRemoteEncoding>
#include "fishcode.h"
#include "loggingcategory.h"
#ifndef NDEBUG
#define myDebug(x) qCDebug(KIO_FISH_DEBUG) << __LINE__ << ": " x
#define dataReq() \
do { \
myDebug(<< "_______ emitting dataReq()"); \
dataReq(); \
} while (0)
#define needSubURLData() \
do { \
myDebug(<< "_______ emitting needSubURLData()"); \
needSubURLData(); \
} while (0)
#define workerStatus(x, y) \
do { \
myDebug(<< "_______ emitting workerStatus(" << x << ", " << y << ")"); \
workerStatus(x, y); \
} while (0)
#define statEntry(x) \
do { \
myDebug(<< "_______ emitting statEntry(" << x.count() << ")"); \
statEntry(x); \
} while (0)
#define listEntries(x) \
do { \
myDebug(<< "_______ emitting listEntries(...)"); \
listEntries(x); \
} while (0)
#define canResume(x) \
do { \
myDebug(<< "_______ emitting canResume(" << (int)x << ")"); \
canResume(x); \
} while (0)
#define totalSize(x) \
do { \
myDebug(<< "_______ emitting totalSize(" << (int)x << ")"); \
totalSize(x); \
} while (0)
#define processedSize(x) \
do { \
myDebug(<< "_______ emitting processedSize(" << x << ")"); \
processedSize(x); \
} while (0)
#define speed(x) \
do { \
myDebug(<< "_______ emitting speed(" << (int)x << ")"); \
speed(x); \
} while (0)
#define redirection(x) \
do { \
myDebug(<< "_______ emitting redirection(" << x << ")"); \
redirection(x); \
} while (0)
#define sendmimeType(x) \
do { \
myDebug(<< "_______ emitting mimeType(" << x << ")"); \
mimeType(x); \
} while (0)
#define warning(x) \
do { \
myDebug(<< "_______ emitting warning(" << x << ")"); \
warning(x); \
} while (0)
#define infoMessage(x) \
do { \
myDebug(<< "_______ emitting infoMessage(" << x << ")"); \
infoMessage(x); \
} while (0)
#else
#define myDebug(x)
#define sendmimeType(x) mimeType(x)
#endif
#ifdef Q_OS_WIN
#define ENDLINE "\r\n"
#else
#define ENDLINE '\n'
#endif
static char *sshPath = nullptr;
static char *suPath = nullptr;
// disabled: currently not needed. Didn't work reliably.
// static int isOpenSSH = 0;
/** the SSH process used to communicate with the remote end */
#ifndef Q_OS_WIN
static pid_t childPid;
#else
static KProcess *childPid = 0;
#endif
#define E(x) ((const char *)remoteEncoding()->encode(x).data())
// Pseudo plugin class to embed meta data
class KIOPluginForMetaData : public QObject
{
Q_OBJECT
Q_PLUGIN_METADATA(IID "org.kde.kio.worker.fish" FILE "fish.json")
};
using namespace KIO;
extern "C" {
int Q_DECL_EXPORT kdemain(int argc, char **argv)
{
QCoreApplication app(argc, argv);
app.setApplicationName("kio_fish");
myDebug(<< "*** Starting fish ");
if (argc != 4) {
myDebug(<< "Usage: kio_fish protocol domain-socket1 domain-socket2");
exit(-1);
}
setenv("TZ", "UTC", true);
fishProtocol worker(argv[2], argv[3]);
worker.dispatchLoop();
myDebug(<< "*** fish Done");
return 0;
}
}
const struct fishProtocol::fish_info fishProtocol::fishInfo[] = {
{("FISH"),
0,
("echo; /bin/sh -c start_fish_server > /dev/null 2>/dev/null; perl .fishsrv.pl " CHECKSUM
" 2>/dev/null; perl -e '$|=1; print \"### 100 transfer fish server\\n\"; while(<STDIN>) { last if /^__END__/; $code.=$_; } exit(eval($code));' "
"2>/dev/null;"),
1},
{("VER 0.0.3 copy append lscount lslinks lsmime exec stat"), 0, ("echo 'VER 0.0.3 copy append lscount lslinks lsmime exec stat'"), 1},
{("PWD"), 0, ("pwd"), 1},
{("LIST"),
1,
("echo `ls -Lla %1 2> /dev/null | grep '^[-dsplcb]' | wc -l`;"
"echo '### 100';"
"ls -Lla %1 2>/dev/null | grep '^[-dspl]' | ( while read -r p x u g s m d y n; do file -b -i $n 2>/dev/null | sed -e '\\,^[^/]*$,d;s/^/M/;s,/.*[ "
"\t],/,'; FILE=%1; if [ -e %1\"/$n\" ]; then FILE=%1\"/$n\"; fi; if [ -L \"$FILE\" ]; then echo \":$n\"; ls -lad \"$FILE\" | sed -e 's/.* -> /L/'; else "
"echo \":$n\" | sed -e 's/ -> /\\\nL/'; fi; echo \"P$p $u.$g\nS$s\nd$m $d $y\n\"; done; );"
"ls -Lla %1 2>/dev/null | grep '^[cb]' | ( while read -r p x u g a i m d y n; do echo \"P$p $u.$g\nE$a$i\nd$m $d $y\n:$n\n\"; done; )"),
0},
{("STAT"),
1,
("echo `ls -dLla %1 2> /dev/null | grep '^[-dsplcb]' | wc -l`;"
"echo '### 100';"
"ls -dLla %1 2>/dev/null | grep '^[-dspl]' | ( while read -r p x u g s m d y n; do file -b -i $n 2>/dev/null | sed -e '\\,^[^/]*$,d;s/^/M/;s,/.*[ "
"\t],/,'; FILE=%1; if [ -e %1\"/$n\" ]; then FILE=%1\"/$n\"; fi; if [ -L \"$FILE\" ]; then echo \":$n\"; ls -lad \"$FILE\" | sed -e 's/.* -> /L/'; else "
"echo \":$n\" | sed -e 's/ -> /\\\nL/'; fi; echo \"P$p $u.$g\nS$s\nd$m $d $y\n\"; done; );"
"ls -dLla %1 2>/dev/null | grep '^[cb]' | ( while read -r p x u g a i m d y n; do echo \"P$p $u.$g\nE$a$i\nd$m $d $y\n:$n\n\"; done; )"),
0},
{("RETR"), 1, ("ls -l %1 2>&1 | ( read -r a b c d x e; echo $x ) 2>&1; echo '### 001'; cat %1"), 1},
{("STOR"),
2,
("> %2; echo '### 001'; ( [ \"`expr %1 / 4096`\" -gt 0 ] && dd bs=4096 count=`expr %1 / 4096` 2>/dev/null;"
"[ \"`expr %1 % 4096`\" -gt 0 ] && dd bs=`expr %1 % 4096` count=1 2>/dev/null; ) | ( cat > %2 || echo Error $?; cat > /dev/null )"),
0},
{("CWD"), 1, ("cd %1"), 0},
{("CHMOD"), 2, ("chmod %1 %2"), 0},
{("DELE"), 1, ("rm -f %1"), 0},
{("MKD"), 1, ("mkdir %1"), 0},
{("RMD"), 1, ("rmdir %1"), 0},
{("RENAME"), 2, ("mv -f %1 %2"), 0},
{("LINK"), 2, ("ln -f %1 %2"), 0},
{("SYMLINK"), 2, ("ln -sf %1 %2"), 0},
{("CHOWN"), 2, ("chown %1 %2"), 0},
{("CHGRP"), 2, ("chgrp %1 %2"), 0},
{("READ"),
3,
("echo '### 100';cat %3 /dev/zero | ( [ \"`expr %1 / 4096`\" -gt 0 ] && dd bs=4096 count=`expr %1 / 4096` >/dev/null;"
"[ \"`expr %1 % 4096`\" -gt 0 ] && dd bs=`expr %1 % 4096` count=1 >/dev/null;"
"dd bs=%2 count=1; ) 2>/dev/null;"),
0},
// Yes, this is "ibs=1", since dd "count" is input blocks.
// On network connections, read() may not fill the buffer
// completely (no more data immediately available), but dd
// does ignore that fact by design. Sorry, writes are slow.
// OTOH, WRITE is not used by the current KIO worker methods,
// we use APPEND.
{("WRITE"),
3,
(">> %3; echo '### 001'; ( [ %2 -gt 0 ] && dd ibs=1 obs=%2 count=%2 2>/dev/null ) | "
"( dd ibs=32768 obs=%1 seek=1 of=%3 2>/dev/null || echo Error $?; cat >/dev/null; )"),
0},
{("COPY"), 2, ("if [ -L %1 ]; then if cp -pdf %1 %2 2>/dev/null; then :; else LINK=\"`readlink %1`\"; ln -sf $LINK %2; fi; else cp -pf %1 %2; fi"), 0},
{("APPEND"), 2, (">> %2; echo '### 001'; ( [ %1 -gt 0 ] && dd ibs=1 obs=%1 count=%1 2> /dev/null; ) | ( cat >> %2 || echo Error $?; cat >/dev/null; )"), 0},
{("EXEC"), 2, ("UMASK=`umask`; umask 077; touch %2; umask $UMASK; eval %1 < /dev/null > %2 2>&1; echo \"###RESULT: $?\" >> %2"), 0}};
fishProtocol::fishProtocol(const QByteArray &pool_socket, const QByteArray &app_socket)
: WorkerBase("fish", pool_socket, app_socket)
, mimeBuffer(1024, '\0')
, mimeTypeSent(false)
{
myDebug(<< "fishProtocol::fishProtocol()");
if (sshPath == nullptr) {
// disabled: currently not needed. Didn't work reliably.
// isOpenSSH = !system("ssh -V 2>&1 | grep OpenSSH > /dev/null");
#ifdef Q_OS_WIN
sshPath = strdup(QFile::encodeName(QStandardPaths::findExecutable("plink")).constData());
#else
sshPath = strdup(QFile::encodeName(QStandardPaths::findExecutable("ssh")).constData());
#endif
}
if (suPath == nullptr) {
suPath = strdup(QFile::encodeName(QStandardPaths::findExecutable("su")).constData());
}
childPid = 0;
connectionPort = 0;
isLoggedIn = false;
writeReady = true;
isRunning = false;
firstLogin = true;
errorCount = 0;
rawRead = 0;
rawWrite = -1;
recvLen = -1;
sendLen = -1;
connectionAuth.keepPassword = true;
connectionAuth.url.setScheme("fish");
outBufPos = -1;
outBuf = QByteArray();
udsType = 0;
hasAppend = false;
isStat = false; // FIXME: just a workaround for konq deficiencies
redirectUser = ""; // FIXME: just a workaround for konq deficiencies
redirectPass = ""; // FIXME: just a workaround for konq deficiencies
fishCodeLen = strlen(fishCode);
}
/* ---------------------------------------------------------------------------------- */
fishProtocol::~fishProtocol()
{
myDebug(<< "fishProtocol::~fishProtocol()");
shutdownConnection(true);
}
/* --------------------------------------------------------------------------- */
/**
Connects to a server and logs us in via SSH. Then starts FISH protocol.
*/
KIO::WorkerResult fishProtocol::openConnection()
{
if (childPid)
return KIO::WorkerResult::pass();
if (connectionHost.isEmpty()) {
return error(KIO::ERR_UNKNOWN_HOST, QString());
}
infoMessage(i18n("Connecting..."));
myDebug(<< "connecting to: " << connectionUser << "@" << connectionHost << ":" << connectionPort);
sendCommand(FISH_FISH);
sendCommand(FISH_VER);
const auto result = connectionStart();
if (!result.success()) {
shutdownConnection();
return result;
};
myDebug(<< "subprocess is running");
return result;
}
// XXX Use KPty! XXX
#ifndef Q_OS_WIN
static int open_pty_pair(int fd[2])
{
#if defined(HAVE_TERMIOS_H) && defined(HAVE_GRANTPT) && !defined(HAVE_OPENPTY)
/** with kind regards to The GNU C Library
Reference Manual for Version 2.2.x of the GNU C Library */
int master, slave;
char *name;
struct ::termios ti;
memset(&ti, 0, sizeof(ti));
ti.c_cflag = CLOCAL | CREAD | CS8;
ti.c_cc[VMIN] = 1;
#ifdef HAVE_GETPT
master = getpt();
#else
master = open("/dev/ptmx", O_RDWR);
#endif
if (master < 0)
return 0;
if (grantpt(master) < 0 || unlockpt(master) < 0)
goto close_master;
name = ptsname(master);
if (name == NULL)
goto close_master;
slave = open(name, O_RDWR);
if (slave == -1)
goto close_master;
#if (defined(HAVE_ISASTREAM) || defined(isastream)) && defined(I_PUSH)
if (isastream(slave) && (ioctl(slave, I_PUSH, "ptem") < 0 || ioctl(slave, I_PUSH, "ldterm") < 0))
goto close_slave;
#endif
tcsetattr(slave, TCSANOW, &ti);
fd[0] = master;
fd[1] = slave;
return 0;
#if (defined(HAVE_ISASTREAM) || defined(isastream)) && defined(I_PUSH)
close_slave:
#endif
close(slave);
close_master:
close(master);
return -1;
#else
#ifdef HAVE_OPENPTY
struct ::termios ti;
memset(&ti, 0, sizeof(ti));
ti.c_cflag = CLOCAL | CREAD | CS8;
ti.c_cc[VMIN] = 1;
return openpty(fd, fd + 1, nullptr, &ti, nullptr);
#else
#ifdef __GNUC__
#warning "No tty support available. Password dialog won't work."
#endif
return socketpair(PF_UNIX, SOCK_STREAM, 0, fd);
#endif
#endif
}
#endif
/**
creates the subprocess
*/
KIO::WorkerResult fishProtocol::connectionStart()
{
int fd[2];
int rc, flags;
thisFn.clear();
#ifndef Q_OS_WIN
rc = open_pty_pair(fd);
if (rc == -1) {
myDebug(<< "socketpair failed, error: " << strerror(errno));
return error(ERR_CANNOT_CONNECT, connectionHost);
;
}
#endif
myDebug(<< "Exec: " << (local ? suPath : sshPath) << " Port: " << connectionPort << " User: " << connectionUser);
#ifdef Q_OS_WIN
childPid = new KProcess();
childPid->setOutputChannelMode(KProcess::MergedChannels);
QStringList common_args;
common_args << "-l" << connectionUser.toLatin1().constData() << "-x" << connectionHost.toLatin1().constData();
common_args << "echo;echo FISH:;exec /bin/sh -c \"if env true 2>/dev/null; then env PS1= PS2= TZ=UTC LANG=C LC_ALL=C LOCALE=C /bin/sh; else PS1= PS2= "
"TZ=UTC LANG=C LC_ALL=C LOCALE=C /bin/sh; fi\"";
childPid->setProgram(sshPath, common_args);
childPid->start();
QByteArray buf;
int offset = 0;
while (!isLoggedIn) {
if (outBuf.size()) {
rc = childPid->write(outBuf);
outBuf.clear();
} else
rc = 0;
if (rc < 0) {
myDebug(<< "write failed, rc: " << rc);
outBufPos = -1;
// return true;
}
if (childPid->waitForReadyRead(1000)) {
QByteArray buf2 = childPid->readAll();
buf += buf2;
const auto establishConnectionResult = establishConnection(buf, rc + offset);
if (!establishConnectionResult.result.success()) {
return establishConnectionResult.result;
}
const int noff = establishConnectionResult.remainingBufferSize;
if (noff > 0)
buf = buf.mid(/*offset+*/ noff);
// offset = noff;
}
}
#else
childPid = fork();
if (childPid == -1) {
myDebug(<< "fork failed, error: " << strerror(errno));
::close(fd[0]);
::close(fd[1]);
childPid = 0;
return error(ERR_CANNOT_CONNECT, connectionHost);
;
}
if (childPid == 0) {
// taken from konsole, see TEPty.C for details
// note: if we're running on socket pairs,
// this will fail, but thats what we expect
for (int sig = 1; sig < NSIG; sig++)
signal(sig, SIG_DFL);
struct rlimit rlp;
getrlimit(RLIMIT_NOFILE, &rlp);
for (int i = 0; i < (int)rlp.rlim_cur; i++)
if (i != fd[1])
::close(i);
dup2(fd[1], 0);
dup2(fd[1], 1);
dup2(fd[1], 2);
if (fd[1] > 2)
::close(fd[1]);
setsid();
#if defined(TIOCSCTTY)
ioctl(0, TIOCSCTTY, 0);
#endif
int pgrp = getpid();
#if defined(_AIX) || defined(__hpux)
tcsetpgrp(0, pgrp);
#else
ioctl(0, TIOCSPGRP, (char *)&pgrp);
#endif
const char *dev = ttyname(0);
setpgid(0, 0);
if (dev)
::close(::open(dev, O_WRONLY, 0));
setpgid(0, 0);
if (local) {
execl(suPath,
"su",
"-",
connectionUser.toLatin1().constData(),
"-c",
"cd ~;echo FISH:;exec /bin/sh -c \"if env true 2>/dev/null; then env PS1= PS2= TZ=UTC LANG=C LC_ALL=C LOCALE=C /bin/sh; else PS1= PS2= "
"TZ=UTC LANG=C LC_ALL=C LOCALE=C /bin/sh; fi\"",
(void *)nullptr);
} else {
#define common_args \
"-l", connectionUser.toLatin1().constData(), "-x", "-e", "none", "-q", connectionHost.toLatin1().constData(), \
"echo FISH:;exec /bin/sh -c \"if env true 2>/dev/null; then env PS1= PS2= TZ=UTC LANG=C LC_ALL=C LOCALE=C /bin/sh; else PS1= PS2= TZ=UTC LANG=C " \
"LC_ALL=C LOCALE=C /bin/sh; fi\"", \
(void *)nullptr
// disabled: leave compression up to the client.
// (isOpenSSH?"-C":"+C"),
if (connectionPort)
execl(sshPath, "ssh", "-p", qPrintable(QString::number(connectionPort)), common_args);
else
execl(sshPath, "ssh", common_args);
#undef common_args
}
myDebug(<< "could not exec! " << strerror(errno));
::exit(-1);
}
::close(fd[1]);
rc = fcntl(fd[0], F_GETFL, &flags);
rc = fcntl(fd[0], F_SETFL, flags | O_NONBLOCK);
childFd = fd[0];
fd_set rfds, wfds;
FD_ZERO(&rfds);
FD_ZERO(&wfds);
char buf[32768];
int offset = 0;
while (!isLoggedIn) {
FD_SET(childFd, &rfds);
FD_ZERO(&wfds);
if (outBufPos >= 0)
FD_SET(childFd, &wfds);
struct timeval timeout;
timeout.tv_sec = 0;
timeout.tv_usec = 1000;
rc = select(childFd + 1, &rfds, &wfds, nullptr, &timeout);
if (rc < 0) {
if (errno == EINTR)
continue;
myDebug(<< "select failed, rc: " << rc << ", error: " << strerror(errno));
return error(ERR_CANNOT_CONNECT, connectionHost);
;
}
if (FD_ISSET(childFd, &wfds) && outBufPos >= 0) {
if (!outBuf.isEmpty())
rc = ::write(childFd, outBuf.constData() + outBufPos, outBuf.length() - outBufPos);
else
rc = 0;
if (rc >= 0)
outBufPos += rc;
else {
if (errno == EINTR)
continue;
myDebug(<< "write failed, rc: " << rc << ", error: " << strerror(errno));
outBufPos = -1;
// return true;
}
if (outBufPos >= outBuf.length()) {
outBufPos = -1;
outBuf = QByteArray();
}
} else if (FD_ISSET(childFd, &rfds)) {
rc = ::read(childFd, buf + offset, sizeof(buf) - offset);
if (rc > 0) {
const auto establishConnectionResult = establishConnection(buf, rc + offset);
if (!establishConnectionResult.result.success()) {
return establishConnectionResult.result;
}
const int noff = establishConnectionResult.remainingBufferSize;
if (noff > 0)
memmove(buf, buf + offset + rc - noff, noff);
offset = noff;
} else {
if (errno == EINTR)
continue;
myDebug(<< "read failed, rc: " << rc << ", error: " << strerror(errno));
return error(ERR_CANNOT_CONNECT, connectionHost);
;
}
}
}
#endif
return KIO::WorkerResult::pass();
}
/**
writes one chunk of data to stdin of child process
*/
void fishProtocol::writeChild(const char *buf, KIO::fileoffset_t len)
{
if (outBufPos >= 0 && !outBuf.isEmpty()) {
return;
}
outBuf = QByteArray(buf, len);
outBufPos = 0;
}
/**
manages initial communication setup including password queries
*/
#ifndef Q_OS_WIN
ConnectedResult fishProtocol::establishConnection(char *buffer, KIO::fileoffset_t len)
{
QString buf = QString::fromLatin1(buffer, len);
#else
ConnectedResult fishProtocol::establishConnection(const QByteArray &buffer)
{
QString buf = buffer;
#endif
int pos = 0;
// Strip trailing whitespace
while (buf.length() && (buf[buf.length() - 1] == ' '))
buf.truncate(buf.length() - 1);
myDebug(<< "establishing: got " << buf);
while (childPid && ((pos = buf.indexOf('\n')) >= 0 || buf.endsWith(':') || buf.endsWith('?'))) {
pos++;
QString str = buf.left(pos);
buf = buf.mid(pos);
if (str == "\n")
continue;
if (str == "FISH:\n") {
thisFn.clear();
infoMessage(i18n("Initiating protocol..."));
if (!connectionAuth.password.isEmpty()) {
connectionAuth.password = connectionAuth.password.left(connectionAuth.password.length() - 1);
if (connectionAuth.keepPassword) {
cacheAuthentication(connectionAuth);
}
}
isLoggedIn = true;
return {0, KIO::WorkerResult::pass()};
} else if (!str.isEmpty()) {
thisFn += str;
} else if (buf.endsWith(':')) {
if (!redirectUser.isEmpty() && connectionUser != redirectUser) {
QUrl dest = url;
dest.setUserName(redirectUser);
dest.setPassword(redirectPass);
redirection(dest);
commandList.clear();
commandCodes.clear();
isRunning = false;
redirectUser = "";
redirectPass = "";
return {-1, KIO::WorkerResult::fail()};
}
if (!connectionPassword.isEmpty()) {
myDebug(<< "sending cpass");
connectionAuth.password = connectionPassword + ENDLINE;
connectionPassword.clear();
// su does not like receiving a password directly after sending
// the password prompt so we wait a while.
if (local)
sleep(1);
writeChild(connectionAuth.password.toLatin1().constData(), connectionAuth.password.length());
} else {
myDebug(<< "sending mpass");
connectionAuth.prompt = thisFn + buf;
if (local)
connectionAuth.caption = i18n("Local Login");
else
connectionAuth.caption = i18n("SSH Authentication");
if ((!firstLogin || !checkCachedAuthentication(connectionAuth))) {
connectionAuth.password.clear(); // don't prefill
int errorCode = openPasswordDialog(connectionAuth);
if (errorCode != 0) {
shutdownConnection();
return {-1, error(errorCode, connectionHost)};
}
}
firstLogin = false;
connectionAuth.password += ENDLINE;
if (connectionAuth.username != connectionUser) {
QUrl dest = url;
dest.setUserName(connectionAuth.username);
dest.setPassword(connectionAuth.password);
redirection(dest);
if (isStat) { // FIXME: just a workaround for konq deficiencies
redirectUser = connectionAuth.username;
redirectPass = connectionAuth.password;
}
commandList.clear();
commandCodes.clear();
isRunning = false;
return {-1, KIO::WorkerResult::fail()};
}
myDebug(<< "sending pass");
if (local)
sleep(1);
writeChild(connectionAuth.password.toLatin1().constData(), connectionAuth.password.length());
}
thisFn.clear();
#ifdef Q_OS_WIN
return {buf.length(), KIO::WorkerResult::pass()};
}
#else
return {0, KIO::WorkerResult::pass()};
} else if (buf.endsWith('?')) {
int rc = messageBox(QuestionTwoActions, thisFn + buf, QString(), i18nc("@action:button", "Yes"), i18nc("@action:button", "No"));
if (rc == KIO::WorkerBase::PrimaryAction) {
writeChild("yes\n", 4);
} else {
writeChild("no\n", 3);
}
thisFn.clear();
return {0, KIO::WorkerResult::pass()};
}
#endif
else {
myDebug(<< "unmatched case in initial handling! should not happen!");
}
#ifdef Q_OS_WIN
if (buf.endsWith(QLatin1String("(y/n)"))) {
int rc = messageBox(QuestionTwoActions, thisFn + buf, QString(), i18nc("@action:button", "Yes"), i18nc("@action:button", "No"));
if (rc == KIO::WorkerBase::PrimaryAction) {
writeChild("y\n", 2);
} else {
writeChild("n\n", 2);
}
thisFn.clear();
return {0, KIO::WorkerResult::pass()};
}
#endif
}
return {buf.length(), KIO::WorkerResult::pass()};
}
void fishProtocol::setHostInternal(const QUrl &u)
{
int port = u.port();
if (port <= 0) // no port is -1 in QUrl, but in kde3 we used 0 and the KIO worker assume that.
port = 0;
setHost(u.host(), port, u.userName(), u.password());
}
/**
sets connection information for subsequent commands
*/
void fishProtocol::setHost(const QString &host, quint16 port, const QString &u, const QString &pass)
{
QString user(u);
local = (host == "localhost" && port == 0);
if (user.isEmpty())
user = getenv("LOGNAME");
if (host == connectionHost && port == connectionPort && user == connectionUser)
return;
myDebug(<< "setHost " << u << "@" << host);
if (childPid)
shutdownConnection();
connectionHost = host;
connectionAuth.url.setHost(host);
connectionUser = user;
connectionAuth.username = user;
connectionAuth.url.setUserName(user);
connectionPort = port;
connectionPassword = pass;
firstLogin = true;
}
/**
Forced close of the connection
This function gets called from the application side of the universe,
it shouldn't send any response.
*/
void fishProtocol::closeConnection()
{
myDebug(<< "closeConnection()");
shutdownConnection(true);
}
/**
Closes the connection
*/
void fishProtocol::shutdownConnection(bool forced)
{
if (childPid) {
#ifdef Q_OS_WIN
childPid->terminate();
#else
int killStatus = kill(childPid, SIGTERM); // We may not have permission...
if (killStatus == 0)
waitpid(childPid, nullptr, 0);
#endif
childPid = 0;
#ifndef Q_OS_WIN
::close(childFd); // ...in which case this should do the trick
childFd = -1;
#endif
if (!forced) {
infoMessage(i18n("Disconnected."));
}
}
outBufPos = -1;
outBuf = QByteArray();
qlist.clear();
commandList.clear();
commandCodes.clear();
isLoggedIn = false;
writeReady = true;
isRunning = false;
rawRead = 0;
rawWrite = -1;
recvLen = -1;
sendLen = -1;
}
/**
builds each FISH request and sets the error counter
*/
bool fishProtocol::sendCommand(fish_command_type cmd, ...)
{
const fish_info &info = fishInfo[cmd];
myDebug(<< "queuing: cmd=" << cmd << "['" << info.command << "'](" << info.params << "), alt=['" << info.alt << "'], lines=" << info.lines);
va_list list;
va_start(list, cmd);
QString realCmd = info.command;
QString realAlt = info.alt;
static const QRegularExpression rx("[][\\\\\n $`#!()*?{}~&<>;'\"%^@|\t]");
for (int i = 0; i < info.params; i++) {
QString arg(va_arg(list, const char *));
int pos = -2;
while ((pos = arg.indexOf(rx, pos + 2)) >= 0) {
arg.replace(pos, 0, QString("\\"));
}
// myDebug( << "arg " << i << ": " << arg);
realCmd.append(" ").append(arg);
realAlt.replace(QRegularExpression(QLatin1Char('%') + QString::number(i + 1)), arg);
}
QString s("#");
s.append(realCmd).append("\n ").append(realAlt).append(" 2>&1;echo '### 200'\n");
if (realCmd == "FISH")
s.prepend(" ");
commandList.append(s);
commandCodes.append(cmd);
va_end(list);
return true;
}
/**
checks response string for result code, converting 000 and 001 appropriately
*/
int fishProtocol::handleResponse(const QString &str)
{
myDebug(<< "handling: " << str);
if (str.startsWith(QLatin1String("### "))) {
bool isOk = false;
int result = str.mid(4, 3).toInt(&isOk);
if (!isOk)
result = 500;
if (result == 0)
result = (errorCount != 0 ? 500 : 200);
if (result == 1)
result = (errorCount != 0 ? 500 : 100);
myDebug(<< "result: " << result << ", errorCount: " << errorCount);
return result;
} else {
errorCount++;
return 0;
}
}
int fishProtocol::makeTimeFromLs(const QString &monthStr, const QString &dayStr, const QString &timeyearStr)
{
QDateTime dt(QDateTime::currentDateTime().toUTC());
int year = dt.date().year();
int month = dt.date().month();
int currentMonth = month;
int day = dayStr.toInt();
static const char *const monthNames[12] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
for (int i = 0; i < 12; i++)
if (monthStr.startsWith(monthNames[i])) {
month = i + 1;
break;
}
int pos = timeyearStr.indexOf(':');
if (timeyearStr.length() == 4 && pos == -1) {
year = timeyearStr.toInt();
} else if (pos == -1) {
return 0;
} else {
if (month > currentMonth + 1)
year--;
dt.setTime(QTime(timeyearStr.left(pos).toInt(), timeyearStr.mid(pos + 1).toInt(), 0));
}
dt.setDate(QDate(year, month, day));
return dt.toSecsSinceEpoch();
}
/**
parses response from server and acts accordingly
*/
KIO::WorkerResult fishProtocol::manageConnection(const QString &l)
{
QString line(l);
int rc = handleResponse(line);
QDateTime dt;
long pos, pos2, pos3;
bool isOk = false;
if (!rc) {
switch (fishCommand) {
case FISH_VER:
if (line.startsWith(QLatin1String("VER 0.0.3"))) {
line.append(" ");
hasAppend = line.contains(" append ");
} else {
shutdownConnection();
return error(ERR_UNSUPPORTED_PROTOCOL, line);
}
break;
case FISH_PWD:
url.setPath(line);
redirection(url);
break;
case FISH_LIST:
myDebug(<< "listReason: " << static_cast<int>(listReason));
/* Fall through */
case FISH_STAT:
if (line.length() > 0) {
switch (line[0].cell()) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9': {
long long val = line.toLongLong(&isOk);
if (val > 0 && isOk)
errorCount--;
if ((fishCommand == FISH_LIST) && (listReason == LIST))
totalSize(val);
} break;
case 'P': {
errorCount--;
if (line[1] == 'd') {
udsMime = "inode/directory";
udsType = S_IFDIR;
} else {
if (line[1] == '-') {
udsType = S_IFREG;
} else if (line[1] == 'l') {
udsType = S_IFLNK;
} else if (line[1] == 'c') {
udsType = S_IFCHR;
} else if (line[1] == 'b') {
udsType = S_IFBLK;
} else if (line[1] == 's') {
udsType = S_IFSOCK;
} else if (line[1] == 'p') {
udsType = S_IFIFO;
} else {
myDebug(<< "unknown file type: " << line[1].cell());
errorCount++;
break;
}
}
// myDebug( << "file type: " << udsType);
long long accessVal = 0;
if (line[2] == 'r')
accessVal |= S_IRUSR;
if (line[3] == 'w')
accessVal |= S_IWUSR;
if (line[4] == 'x' || line[4] == 's')
accessVal |= S_IXUSR;
if (line[4] == 'S' || line[4] == 's')