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Merge pull request #36 from kasmtech/upstreamsync_sans_novnc

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pointer_lock_api
Kasm 4 years ago committed by GitHub
parent adcf902733 b8c69a7560
commit 0b6334369c
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GPG Key ID: 4AEE18F83AFDEB23
277 changed files with 2481 additions and 91918 deletions
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1
.gitlab-ci.yml
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@ -4,6 +4,7 @@ services:
variables:
GITLAB_SHARED_DIND_DIR: /builds/$CI_PROJECT_PATH/shared
GIT_SUBMODULE_STRATEGY: normal
GIT_FETCH_EXTRA_FLAGS: --tags
stages:

4
.gitmodules vendored
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@ -0,0 +1,4 @@
[submodule "kasmweb"]
path = kasmweb
url = https://github.com/kasmtech/noVNC.git
branch = master

1
builder/build_www.sh
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@ -14,6 +14,5 @@ cp -R ./* /build/
cd /build
rm *.md
rm AUTHORS
rm *.yml
rm vnc.html
rm vnc_lite.html

7
common/network/Socket.cxx
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@ -25,6 +25,9 @@
#include <winsock2.h>
#include <ws2tcpip.h>
#define errorNumber WSAGetLastError()
#define SHUT_RD SD_RECEIVE
#define SHUT_WR SD_SEND
#define SHUT_RDWR SD_BOTH
#else
#define errorNumber errno
#define closesocket close
@ -94,7 +97,7 @@ Socket::~Socket()
void Socket::shutdown()
{
isShutdown_ = true;
::shutdown(getFd(), 2);
::shutdown(getFd(), SHUT_RDWR);
}
bool Socket::isShutdown() const
@ -149,7 +152,7 @@ void SocketListener::shutdown()
closesocket(fd);
fd = -1;
#else
::shutdown(fd, 2);
::shutdown(fd, SHUT_RDWR);
#endif
}

69
common/rdr/BufferedInStream.cxx
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@ -0,0 +1,69 @@
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
* Copyright 2020 Pierre Ossman for Cendio AB
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <rdr/BufferedInStream.h>
#include <rdr/Exception.h>
using namespace rdr;
static const size_t DEFAULT_BUF_SIZE = 8192;
BufferedInStream::BufferedInStream()
: bufSize(DEFAULT_BUF_SIZE), offset(0)
{
ptr = end = start = new U8[bufSize];
}
BufferedInStream::~BufferedInStream()
{
delete [] start;
}
size_t BufferedInStream::pos()
{
return offset + ptr - start;
}
bool BufferedInStream::overrun(size_t needed, bool wait)
{
if (needed > bufSize)
throw Exception("BufferedInStream overrun: "
"requested size of %lu bytes exceeds maximum of %lu bytes",
(long unsigned)needed, (long unsigned)bufSize);
// Do we need to shuffle things around?
if ((bufSize - (ptr - start)) < needed) {
memmove(start, ptr, end - ptr);
offset += ptr - start;
end -= ptr - start;
ptr = start;
}
while (avail() < needed) {
if (!fillBuffer(start + bufSize - end, wait))
return false;
}
return true;
}

54
common/rdr/BufferedInStream.h
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@ -0,0 +1,54 @@
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
* Copyright 2020 Pierre Ossman for Cendio AB
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
//
// Base class for input streams with a buffer
//
#ifndef __RDR_BUFFEREDINSTREAM_H__
#define __RDR_BUFFEREDINSTREAM_H__
#include <rdr/InStream.h>
namespace rdr {
class BufferedInStream : public InStream {
public:
virtual ~BufferedInStream();
virtual size_t pos();
private:
virtual bool fillBuffer(size_t maxSize, bool wait) = 0;
virtual bool overrun(size_t needed, bool wait);
private:
size_t bufSize;
size_t offset;
U8* start;
protected:
BufferedInStream();
};
} // end of namespace rdr
#endif

108
common/rdr/BufferedOutStream.cxx
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@ -0,0 +1,108 @@
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
* Copyright 2011-2020 Pierre Ossman for Cendio AB
* Copyright 2017 Peter Astrand <astrand@cendio.se> for Cendio AB
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <rdr/BufferedOutStream.h>
#include <rdr/Exception.h>
using namespace rdr;
static const size_t DEFAULT_BUF_SIZE = 16384;
BufferedOutStream::BufferedOutStream()
: bufSize(DEFAULT_BUF_SIZE), offset(0)
{
ptr = start = sentUpTo = new U8[bufSize];
end = start + bufSize;
}
BufferedOutStream::~BufferedOutStream()
{
// FIXME: Complain about non-flushed buffer?
delete [] start;
}
size_t BufferedOutStream::length()
{
return offset + ptr - sentUpTo;
}
size_t BufferedOutStream::bufferUsage()
{
return ptr - sentUpTo;
}
void BufferedOutStream::flush()
{
while (sentUpTo < ptr) {
size_t len;
len = bufferUsage();
if (!flushBuffer(false))
break;
offset += len - bufferUsage();
}
// Managed to flush everything?
if (sentUpTo == ptr)
ptr = sentUpTo = start;
}
void BufferedOutStream::overrun(size_t needed)
{
if (needed > bufSize)
throw Exception("BufferedOutStream overrun: "
"requested size of %lu bytes exceeds maximum of %lu bytes",
(long unsigned)needed, (long unsigned)bufSize);
// First try to get rid of the data we have
flush();
// Still not enough space?
while (needed > avail()) {
// Can we shuffle things around?
// (don't do this if it gains us less than 25%)
if (((size_t)(sentUpTo - start) > bufSize / 4) &&
(needed < bufSize - (ptr - sentUpTo))) {
memmove(start, sentUpTo, ptr - sentUpTo);
ptr = start + (ptr - sentUpTo);
sentUpTo = start;
} else {
size_t len;
len = bufferUsage();
// Have to get rid of more data, so allow the flush to wait...
flushBuffer(true);
offset += len - bufferUsage();
// Managed to flush everything?
if (sentUpTo == ptr)
ptr = sentUpTo = start;
}
}
}

65
common/rdr/BufferedOutStream.h
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@ -0,0 +1,65 @@
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
* Copyright 2011-2020 Pierre Ossman for Cendio AB
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
//
// Base class for output streams with a buffer
//
#ifndef __RDR_BUFFEREDOUTSTREAM_H__
#define __RDR_BUFFEREDOUTSTREAM_H__
#include <rdr/OutStream.h>
namespace rdr {
class BufferedOutStream : public OutStream {
public:
virtual ~BufferedOutStream();
virtual size_t length();
virtual void flush();
size_t bufferUsage();
private:
// flushBuffer() requests that the stream be flushed. Returns true if it is
// able to progress the output (which might still not mean any bytes
// actually moved) and can be called again. If wait is true then it will
// block until all data has been written.
virtual bool flushBuffer(bool wait) = 0;
virtual void overrun(size_t needed);
private:
size_t bufSize;
size_t offset;
U8* start;
protected:
U8* sentUpTo;
protected:
BufferedOutStream();
};
}
#endif

2
common/rdr/CMakeLists.txt
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@ -1,6 +1,8 @@
include_directories(${CMAKE_SOURCE_DIR}/common ${ZLIB_INCLUDE_DIRS})
add_library(rdr STATIC
BufferedInStream.cxx
BufferedOutStream.cxx
Exception.cxx
FdInStream.cxx
FdOutStream.cxx

142
common/rdr/FdInStream.cxx
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@ -36,13 +36,6 @@
#include <unistd.h>
#endif
#ifndef vncmin
#define vncmin(a,b) (((a) < (b)) ? (a) : (b))
#endif
#ifndef vncmax
#define vncmax(a,b) (((a) > (b)) ? (a) : (b))
#endif
/* Old systems have select() in sys/time.h */
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
@ -53,31 +46,22 @@
using namespace rdr;
enum { DEFAULT_BUF_SIZE = 8192,
MIN_BULK_SIZE = 1024 };
enum { DEFAULT_BUF_SIZE = 8192 };
FdInStream::FdInStream(int fd_, int timeoutms_, size_t bufSize_,
FdInStream::FdInStream(int fd_, int timeoutms_,
bool closeWhenDone_)
: fd(fd_), closeWhenDone(closeWhenDone_),
timeoutms(timeoutms_), blockCallback(0),
timing(false), timeWaitedIn100us(5), timedKbits(0),
bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0)
timeoutms(timeoutms_), blockCallback(0)
{
ptr = end = start = new U8[bufSize];
}
FdInStream::FdInStream(int fd_, FdInStreamBlockCallback* blockCallback_,
size_t bufSize_)
: fd(fd_), timeoutms(0), blockCallback(blockCallback_),
timing(false), timeWaitedIn100us(5), timedKbits(0),
bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0)
FdInStream::FdInStream(int fd_, FdInStreamBlockCallback* blockCallback_)
: fd(fd_), timeoutms(0), blockCallback(blockCallback_)
{
ptr = end = start = new U8[bufSize];
}
FdInStream::~FdInStream()
{
delete [] start;
if (closeWhenDone) close(fd);
}
@ -92,72 +76,15 @@ void FdInStream::setBlockCallback(FdInStreamBlockCallback* blockCallback_)
timeoutms = 0;
}
size_t FdInStream::pos()
{
return offset + ptr - start;
}
void FdInStream::readBytes(void* data, size_t length)
{
if (length < MIN_BULK_SIZE) {
InStream::readBytes(data, length);
return;
}
U8* dataPtr = (U8*)data;
size_t n = end - ptr;
if (n > length) n = length;
memcpy(dataPtr, ptr, n);
dataPtr += n;
length -= n;
ptr += n;
while (length > 0) {
n = readWithTimeoutOrCallback(dataPtr, length);
dataPtr += n;
length -= n;
offset += n;
}
}
size_t FdInStream::overrun(size_t itemSize, size_t nItems, bool wait)
bool FdInStream::fillBuffer(size_t maxSize, bool wait)
{
if (itemSize > bufSize)
throw Exception("FdInStream overrun: max itemSize exceeded");
if (end - ptr != 0)
memmove(start, ptr, end - ptr);
offset += ptr - start;
end -= ptr - start;
ptr = start;
size_t bytes_to_read;
while ((size_t)(end - start) < itemSize) {
bytes_to_read = start + bufSize - end;
if (!timing) {
// When not timing, we must be careful not to read too much
// extra data into the buffer. Otherwise, the line speed
// estimation might stay at zero for a long time: All reads
// during timing=1 can be satisfied without calling
// readWithTimeoutOrCallback. However, reading only 1 or 2 bytes
// bytes is ineffecient.
bytes_to_read = vncmin(bytes_to_read, vncmax(itemSize*nItems, 8));
}
size_t n = readWithTimeoutOrCallback((U8*)end, bytes_to_read, wait);
if (n == 0) return 0;
end += n;
}
size_t nAvail;
nAvail = (end - ptr) / itemSize;
if (nAvail < nItems)
return nAvail;
size_t n = readWithTimeoutOrCallback((U8*)end, maxSize, wait);
if (n == 0)
return false;
end += n;
return nItems;
return true;
}
//
@ -175,10 +102,6 @@ size_t FdInStream::overrun(size_t itemSize, size_t nItems, bool wait)
size_t FdInStream::readWithTimeoutOrCallback(void* buf, size_t len, bool wait)
{
struct timeval before, after;
if (timing)
gettimeofday(&before, 0);
int n;
while (true) {
do {
@ -215,48 +138,5 @@ size_t FdInStream::readWithTimeoutOrCallback(void* buf, size_t len, bool wait)
if (n < 0) throw SystemException("read",errno);
if (n == 0) throw EndOfStream();
if (timing) {
gettimeofday(&after, 0);
int newTimeWaited = ((after.tv_sec - before.tv_sec) * 10000 +
(after.tv_usec - before.tv_usec) / 100);
int newKbits = n * 8 / 1000;
// limit rate to between 10kbit/s and 40Mbit/s
if (newTimeWaited > newKbits*1000) newTimeWaited = newKbits*1000;
if (newTimeWaited < newKbits/4) newTimeWaited = newKbits/4;
timeWaitedIn100us += newTimeWaited;
timedKbits += newKbits;
}
return n;
}
void FdInStream::startTiming()
{
timing = true;
// Carry over up to 1s worth of previous rate for smoothing.
if (timeWaitedIn100us > 10000) {
timedKbits = timedKbits * 10000 / timeWaitedIn100us;
timeWaitedIn100us = 10000;
}
}
void FdInStream::stopTiming()
{
timing = false;
if (timeWaitedIn100us < timedKbits/2)
timeWaitedIn100us = timedKbits/2; // upper limit 20Mbit/s
}
unsigned int FdInStream::kbitsPerSecond()
{
// The following calculation will overflow 32-bit arithmetic if we have
// received more than about 50Mbytes (400Mbits) since we started timing, so
// it should be OK for a single RFB update.
return timedKbits * 10000 / timeWaitedIn100us;
}

27
common/rdr/FdInStream.h
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@ -23,7 +23,7 @@
#ifndef __RDR_FDINSTREAM_H__
#define __RDR_FDINSTREAM_H__
#include <rdr/InStream.h>
#include <rdr/BufferedInStream.h>
namespace rdr {
@ -33,31 +33,21 @@ namespace rdr {
virtual ~FdInStreamBlockCallback() {}
};
class FdInStream : public InStream {
class FdInStream : public BufferedInStream {
public:
FdInStream(int fd, int timeoutms=-1, size_t bufSize=0,
bool closeWhenDone_=false);
FdInStream(int fd, FdInStreamBlockCallback* blockCallback,
size_t bufSize=0);
FdInStream(int fd, int timeoutms=-1, bool closeWhenDone_=false);
FdInStream(int fd, FdInStreamBlockCallback* blockCallback);
virtual ~FdInStream();
void setTimeout(int timeoutms);
void setBlockCallback(FdInStreamBlockCallback* blockCallback);
int getFd() { return fd; }
size_t pos();
void readBytes(void* data, size_t length);
void startTiming();
void stopTiming();
unsigned int kbitsPerSecond();
unsigned int timeWaited() { return timeWaitedIn100us; }
protected:
size_t overrun(size_t itemSize, size_t nItems, bool wait);
private:
virtual bool fillBuffer(size_t maxSize, bool wait);
size_t readWithTimeoutOrCallback(void* buf, size_t len, bool wait=true);
int fd;
@ -65,11 +55,6 @@ namespace rdr {
int timeoutms;
FdInStreamBlockCallback* blockCallback;
bool timing;
unsigned int timeWaitedIn100us;
unsigned int timedKbits;
size_t bufSize;
size_t offset;
U8* start;
};

94
common/rdr/FdOutStream.cxx
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@ -35,6 +35,8 @@
#include <unistd.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#endif
/* Old systems have select() in sys/time.h */
@ -49,26 +51,19 @@
using namespace rdr;
enum { DEFAULT_BUF_SIZE = 16384 };
FdOutStream::FdOutStream(int fd_, bool blocking_, int timeoutms_, size_t bufSize_)
: fd(fd_), blocking(blocking_), timeoutms(timeoutms_),
bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0)
FdOutStream::FdOutStream(int fd_, bool blocking_, int timeoutms_)
: fd(fd_), blocking(blocking_), timeoutms(timeoutms_)
{
ptr = start = sentUpTo = new U8[bufSize];
end = start + bufSize;
gettimeofday(&lastWrite, NULL);
}
FdOutStream::~FdOutStream()
{
try {
blocking = true;
flush();
while (sentUpTo != ptr)
flushBuffer(true);
} catch (Exception&) {
}
delete [] start;
}
void FdOutStream::setTimeout(int timeoutms_) {
@ -79,82 +74,29 @@ void FdOutStream::setBlocking(bool blocking_) {
blocking = blocking_;
}
size_t FdOutStream::length()
{
return offset + ptr - sentUpTo;
}
int FdOutStream::bufferUsage()
{
return ptr - sentUpTo;
}
unsigned FdOutStream::getIdleTime()
{
return rfb::msSince(&lastWrite);
}
void FdOutStream::flush()
bool FdOutStream::flushBuffer(bool wait)
{
while (sentUpTo < ptr) {
size_t n = writeWithTimeout((const void*) sentUpTo,
ptr - sentUpTo,
blocking? timeoutms : 0);
// Timeout?
if (n == 0) {
// If non-blocking then we're done here
if (!blocking)
break;
throw TimedOut();
}
sentUpTo += n;
offset += n;
}
// Managed to flush everything?
if (sentUpTo == ptr)
ptr = sentUpTo = start;
}
size_t n = writeWithTimeout((const void*) sentUpTo,
ptr - sentUpTo,
(blocking || wait)? timeoutms : 0);
// Timeout?
if (n == 0) {
// If non-blocking then we're done here
if (!blocking && !wait)
return false;
size_t FdOutStream::overrun(size_t itemSize, size_t nItems)
{
if (itemSize > bufSize)
throw Exception("FdOutStream overrun: max itemSize exceeded");
// First try to get rid of the data we have
flush();
// Still not enough space?
if (itemSize > (size_t)(end - ptr)) {
// Can we shuffle things around?
// (don't do this if it gains us less than 25%)
if (((size_t)(sentUpTo - start) > bufSize / 4) &&
(itemSize < bufSize - (ptr - sentUpTo))) {
memmove(start, sentUpTo, ptr - sentUpTo);
ptr = start + (ptr - sentUpTo);
sentUpTo = start;
} else {
// Have to get rid of more data, so turn off non-blocking
// for a bit...
bool realBlocking;
realBlocking = blocking;
blocking = true;
flush();
blocking = realBlocking;
}
throw TimedOut();
}
size_t nAvail;
nAvail = (end - ptr) / itemSize;
if (nAvail < nItems)
return nAvail;
sentUpTo += n;
return nItems;
return true;
}
//

17
common/rdr/FdOutStream.h
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@ -26,38 +26,29 @@
#include <sys/time.h>
#include <rdr/OutStream.h>
#include <rdr/BufferedOutStream.h>
namespace rdr {
class FdOutStream : public OutStream {
class FdOutStream : public BufferedOutStream {
public:
FdOutStream(int fd, bool blocking=true, int timeoutms=-1, size_t bufSize=0);
FdOutStream(int fd, bool blocking=true, int timeoutms=-1);
virtual ~FdOutStream();
void setTimeout(int timeoutms);
void setBlocking(bool blocking);
int getFd() { return fd; }
void flush();
size_t length();
int bufferUsage();
unsigned getIdleTime();
private:
size_t overrun(size_t itemSize, size_t nItems);
virtual bool flushBuffer(bool wait);
size_t writeWithTimeout(const void* data, size_t length, int timeoutms);
int fd;
bool blocking;
int timeoutms;
size_t bufSize;
size_t offset;
U8* start;
U8* sentUpTo;
struct timeval lastWrite;
};

54
common/rdr/FileInStream.cxx
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@ -30,7 +30,6 @@ FileInStream::FileInStream(const char *fileName)
file = fopen(fileName, "rb");
if (!file)
throw SystemException("fopen", errno);
ptr = end = b;
}
FileInStream::~FileInStream(void) {
@ -40,50 +39,17 @@ FileInStream::~FileInStream(void) {
}
}
void FileInStream::reset(void) {
if (!file)
throw Exception("File is not open");
if (fseek(file, 0, SEEK_SET) != 0)
throw SystemException("fseek", errno);
ptr = end = b;
}
size_t FileInStream::pos()
bool FileInStream::fillBuffer(size_t maxSize, bool wait)
{
if (!file)
throw Exception("File is not open");
return ftell(file) + ptr - b;
}
size_t FileInStream::overrun(size_t itemSize, size_t nItems, bool wait)
{
if (itemSize > sizeof(b))
throw Exception("FileInStream overrun: max itemSize exceeded");
if (end - ptr != 0)
memmove(b, ptr, end - ptr);
end -= ptr - b;
ptr = b;
while ((size_t)(end - b) < itemSize) {
size_t n = fread((U8 *)end, b + sizeof(b) - end, 1, file);
if (n == 0) {
if (ferror(file))
throw SystemException("fread", errno);
if (feof(file))
throw EndOfStream();
return 0;
}
end += b + sizeof(b) - end;
size_t n = fread((U8 *)end, 1, maxSize, file);
if (n == 0) {
if (ferror(file))
throw SystemException("fread", errno);
if (feof(file))
throw EndOfStream();
return false;
}
end += n;
size_t nAvail;
nAvail = (end - ptr) / itemSize;
if (nAvail < nItems)
return nAvail;
return nItems;
return true;
}

13
common/rdr/FileInStream.h
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@ -22,26 +22,21 @@
#include <stdio.h>
#include <rdr/InStream.h>
#include <rdr/BufferedInStream.h>
namespace rdr {
class FileInStream : public InStream {
class FileInStream : public BufferedInStream {
public:
FileInStream(const char *fileName);
~FileInStream(void);
void reset(void);
size_t pos();
protected:
size_t overrun(size_t itemSize, size_t nItems, bool wait = true);
private:
virtual bool fillBuffer(size_t maxSize, bool wait);
private:
U8 b[131072];
FILE *file;
};

58
common/rdr/HexInStream.cxx
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@ -24,18 +24,14 @@
using namespace rdr;
const int DEFAULT_BUF_LEN = 16384;
static inline int min(int a, int b) {return a<b ? a : b;}
HexInStream::HexInStream(InStream& is, size_t bufSize_)
: bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_LEN), offset(0), in_stream(is)
HexInStream::HexInStream(InStream& is)
: in_stream(is)
{
ptr = end = start = new U8[bufSize];
}
HexInStream::~HexInStream() {
delete [] start;
}
@ -76,44 +72,24 @@ decodeError:
}
size_t HexInStream::pos() {
return offset + ptr - start;
}
size_t HexInStream::overrun(size_t itemSize, size_t nItems, bool wait) {
if (itemSize > bufSize)
throw Exception("HexInStream overrun: max itemSize exceeded");
if (end - ptr != 0)
memmove(start, ptr, end - ptr);
end -= ptr - start;
offset += ptr - start;
ptr = start;
while ((size_t)(end - ptr) < itemSize) {
size_t n = in_stream.check(2, 1, wait);
if (n == 0) return 0;
const U8* iptr = in_stream.getptr();
const U8* eptr = in_stream.getend();
size_t length = min((eptr - iptr)/2, start + bufSize - end);
bool HexInStream::fillBuffer(size_t maxSize, bool wait) {
if (!in_stream.check(2, wait))
return false;
U8* optr = (U8*) end;
for (size_t i=0; i<length; i++) {
int v = 0;
readHexAndShift(iptr[i*2], &v);
readHexAndShift(iptr[i*2+1], &v);
optr[i] = v;
}
const U8* iptr = in_stream.getptr();
const U8* eptr = in_stream.getend();
size_t length = min((eptr - iptr)/2, maxSize);
in_stream.setptr(iptr + length*2);
end += length;
U8* optr = (U8*) end;
for (size_t i=0; i<length; i++) {
int v = 0;
readHexAndShift(iptr[i*2], &v);
readHexAndShift(iptr[i*2+1], &v);
optr[i] = v;
}
size_t nAvail;
nAvail = (end - ptr) / itemSize;
if (nAvail < nItems)
return nAvail;
in_stream.setptr(iptr + length*2);
end += length;
return nItems;
return true;
}

16
common/rdr/HexInStream.h
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@ -19,29 +19,23 @@
#ifndef __RDR_HEX_INSTREAM_H__
#define __RDR_HEX_INSTREAM_H__
#include <rdr/InStream.h>
#include <rdr/BufferedInStream.h>
namespace rdr {
class HexInStream : public InStream {
class HexInStream : public BufferedInStream {
public:
HexInStream(InStream& is, size_t bufSize=0);
HexInStream(InStream& is);
virtual ~HexInStream();
size_t pos();
static bool readHexAndShift(char c, int* v);
static bool hexStrToBin(const char* s, char** data, size_t* length);
protected:
size_t overrun(size_t itemSize, size_t nItems, bool wait);
private:
size_t bufSize;
U8* start;
size_t offset;
virtual bool fillBuffer(size_t maxSize, bool wait);
private:
InStream& in_stream;
};

18
common/rdr/HexOutStream.cxx
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@ -25,8 +25,8 @@ const int DEFAULT_BUF_LEN = 16384;
static inline size_t min(size_t a, size_t b) {return a<b ? a : b;}
HexOutStream::HexOutStream(OutStream& os, size_t buflen)
: out_stream(os), offset(0), bufSize(buflen ? buflen : DEFAULT_BUF_LEN)
HexOutStream::HexOutStream(OutStream& os)
: out_stream(os), offset(0), bufSize(DEFAULT_BUF_LEN)
{
if (bufSize % 2)
bufSize--;
@ -95,18 +95,10 @@ HexOutStream::flush() {
out_stream.flush();
}
size_t
HexOutStream::overrun(size_t itemSize, size_t nItems) {
if (itemSize > bufSize)
throw Exception("HexOutStream overrun: max itemSize exceeded");
void HexOutStream::overrun(size_t needed) {
if (needed > bufSize)
throw Exception("HexOutStream overrun: buffer size exceeded");
writeBuffer();
size_t nAvail;
nAvail = (end - ptr) / itemSize;
if (nAvail < nItems)
return nAvail;
return nItems;
}

4
common/rdr/HexOutStream.h
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@ -26,7 +26,7 @@ namespace rdr {
class HexOutStream : public OutStream {
public:
HexOutStream(OutStream& os, size_t buflen=0);
HexOutStream(OutStream& os);
virtual ~HexOutStream();
void flush();
@ -37,7 +37,7 @@ namespace rdr {
private:
void writeBuffer();
size_t overrun(size_t itemSize, size_t nItems);
virtual void overrun(size_t needed);
OutStream& out_stream;

47
common/rdr/InStream.h
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@ -35,28 +35,25 @@ namespace rdr {
virtual ~InStream() {}
// check() ensures there is buffer data for at least one item of size
// itemSize bytes. Returns the number of items in the buffer (up to a
// maximum of nItems). If wait is false, then instead of blocking to wait
// for the bytes, zero is returned if the bytes are not immediately
// available. If itemSize or nItems is zero, check() will return zero.
// avail() returns the number of bytes that are currenctly directly
// available from the stream.
inline size_t check(size_t itemSize, size_t nItems=1, bool wait=true)
inline size_t avail()
{
size_t nAvail;
if (itemSize == 0 || nItems == 0)
return 0;
return end - ptr;
}
if (itemSize > (size_t)(end - ptr))
return overrun(itemSize, nItems, wait);
// check() ensures there is buffer data for at least needed bytes. Returns
// true once the data is available. If wait is false, then instead of
// blocking to wait for the bytes, false is returned if the bytes are not
// immediately available.
// itemSize cannot be zero at this point
nAvail = (end - ptr) / itemSize;
if (nAvail < nItems)
return nAvail;
inline size_t check(size_t needed, bool wait=true)
{
if (needed > avail())
return overrun(needed, wait);
return nItems;
return true;
}
// checkNoWait() tries to make sure that the given number of bytes can
@ -64,10 +61,7 @@ namespace rdr {
// otherwise. The length must be "small" (less than the buffer size).
// If length is zero, checkNoWait() will return true.
inline bool checkNoWait(size_t length)
{
return length == 0 || check(length, 1, false) > 0;
}
inline bool checkNoWait(size_t length) { return check(length, false); }
// readU/SN() methods read unsigned and signed N-bit integers.
@ -138,13 +132,12 @@ namespace rdr {
private:
// overrun() is implemented by a derived class to cope with buffer overrun.
// It ensures there are at least itemSize bytes of buffer data. Returns
// the number of items in the buffer (up to a maximum of nItems). itemSize
// is supposed to be "small" (a few bytes). If wait is false, then
// instead of blocking to wait for the bytes, zero is returned if the bytes
// are not immediately available.
// It ensures there are at least needed bytes of buffer data. Returns true
// once the data is available. If wait is false, then instead of blocking
// to wait for the bytes, false is returned if the bytes are not
// immediately available.
virtual size_t overrun(size_t itemSize, size_t nItems, bool wait=true) = 0;
virtual bool overrun(size_t needed, bool wait=true) = 0;
protected:

2
common/rdr/MemInStream.h
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@ -53,7 +53,7 @@ namespace rdr {
private:
size_t overrun(size_t itemSize, size_t nItems, bool wait) { throw EndOfStream(); }
bool overrun(size_t needed, bool wait) { throw EndOfStream(); }
const U8* start;
bool deleteWhenDone;
};

16
common/rdr/MemOutStream.h
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@ -41,12 +41,6 @@ namespace rdr {
delete [] start;
}
void writeBytes(const void* data, size_t length) {
check(length);
memcpy(ptr, data, length);
ptr += length;
}
size_t length() { return ptr - start; }
void clear() { ptr = start; };
void clearAndZero() { memset(start, 0, ptr-start); clear(); }
@ -58,11 +52,11 @@ namespace rdr {
protected:
// overrun() either doubles the buffer or adds enough space for nItems of
// size itemSize bytes.
// overrun() either doubles the buffer or adds enough space for
// needed bytes.
size_t overrun(size_t itemSize, size_t nItems) {
size_t len = ptr - start + itemSize * nItems;
virtual void overrun(size_t needed) {
size_t len = ptr - start + needed;
if (len < (size_t)(end - start) * 2)
len = (end - start) * 2;
@ -75,8 +69,6 @@ namespace rdr {
delete [] start;
start = newStart;
end = newStart + len;
return nItems;
}
U8* start;

46
common/rdr/OutStream.h
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@ -40,22 +40,20 @@ namespace rdr {
virtual ~OutStream() {}
// check() ensures there is buffer space for at least one item of size
// itemSize bytes. Returns the number of items which fit (up to a maximum
// of nItems).
// avail() returns the number of bytes that currently be written to the
// stream without any risk of blocking.
inline size_t check(size_t itemSize, size_t nItems=1)
inline size_t avail()
{
size_t nAvail;
if (itemSize > (size_t)(end - ptr))
return overrun(itemSize, nItems);
return end - ptr;
}
nAvail = (end - ptr) / itemSize;
if (nAvail < nItems)
return nAvail;
// check() ensures there is buffer space for at least needed bytes.
return nItems;
inline void check(size_t needed)
{
if (needed > avail())
overrun(needed);
}
// writeU/SN() methods write unsigned and signed N-bit integers.
@ -83,19 +81,14 @@ namespace rdr {
while (bytes-- > 0) writeU8(0);
}
inline void skip(size_t bytes) {
while (bytes > 0) {
size_t n = check(1, bytes);
ptr += n;
bytes -= n;
}
}
// writeBytes() writes an exact number of bytes.
void writeBytes(const void* data, size_t length) {
while (length > 0) {
size_t n = check(1, length);
check(1);
size_t n = length;
if (length > avail())
n = avail();
memcpy(ptr, data, n);
ptr += n;
data = (U8*)data + n;
@ -107,7 +100,10 @@ namespace rdr {
void copyBytes(InStream* is, size_t length) {
while (length > 0) {
size_t n = check(1, length);
check(1);
size_t n = length;
if (length > avail())
n = avail();
is->readBytes(ptr, n);
ptr += n;
length -= n;
@ -143,11 +139,9 @@ namespace rdr {
private:
// overrun() is implemented by a derived class to cope with buffer overrun.
// It ensures there are at least itemSize bytes of buffer space. Returns
// the number of items which fit (up to a maximum of nItems). itemSize is
// supposed to be "small" (a few bytes).
// It ensures there are at least needed bytes of buffer space.
virtual size_t overrun(size_t itemSize, size_t nItems) = 0;
virtual void overrun(size_t needed) = 0;
protected:

44
common/rdr/RandomStream.cxx
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@ -32,15 +32,10 @@
using namespace rdr;
const size_t DEFAULT_BUF_LEN = 256;
unsigned int RandomStream::seed;
RandomStream::RandomStream()
: offset(0)
{
ptr = end = start = new U8[DEFAULT_BUF_LEN];
#ifdef RFB_HAVE_WINCRYPT
provider = 0;
if (!CryptAcquireContext(&provider, 0, 0, PROV_RSA_FULL, 0)) {
@ -72,8 +67,6 @@ RandomStream::RandomStream()
}
RandomStream::~RandomStream() {
delete [] start;
#ifdef RFB_HAVE_WINCRYPT
if (provider)
CryptReleaseContext(provider, 0);
@ -83,50 +76,29 @@ RandomStream::~RandomStream() {
#endif
}
size_t RandomStream::pos() {
return offset + ptr - start;
}
size_t RandomStream::overrun(size_t itemSize, size_t nItems, bool wait) {
if (itemSize > DEFAULT_BUF_LEN)
throw Exception("RandomStream overrun: max itemSize exceeded");
if (end - ptr != 0)
memmove(start, ptr, end - ptr);
end -= ptr - start;
offset += ptr - start;
ptr = start;
size_t length = start + DEFAULT_BUF_LEN - end;
bool RandomStream::fillBuffer(size_t maxSize, bool wait) {
#ifdef RFB_HAVE_WINCRYPT
if (provider) {
if (!CryptGenRandom(provider, length, (U8*)end))
if (!CryptGenRandom(provider, maxSize, (U8*)end))
throw rdr::SystemException("unable to CryptGenRandom", GetLastError());
end += length;
end += maxSize;
} else {
#else
#ifndef WIN32
if (fp) {
size_t n = fread((U8*)end, length, 1, fp);
if (n != 1)
size_t n = fread((U8*)end, 1, maxSize, fp);
if (n <= 0)
throw rdr::SystemException("reading /dev/urandom or /dev/random failed",
errno);
end += length;
end += n;
} else {
#else
{
#endif
#endif
for (size_t i=0; i<length; i++)
for (size_t i=0; i<maxSize; i++)
*(U8*)end++ = (int) (256.0*rand()/(RAND_MAX+1.0));
}
size_t nAvail;
nAvail = (end - ptr) / itemSize;
if (nAvail < nItems)
return nAvail;
return nItems;
return true;
}

13
common/rdr/RandomStream.h
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@ -20,7 +20,7 @@
#define __RDR_RANDOMSTREAM_H__
#include <stdio.h>
#include <rdr/InStream.h>
#include <rdr/BufferedInStream.h>
#ifdef WIN32
#include <windows.h>
@ -32,22 +32,17 @@
namespace rdr {
class RandomStream : public InStream {
class RandomStream : public BufferedInStream {
public:
RandomStream();
virtual ~RandomStream();
size_t pos();
protected:
size_t overrun(size_t itemSize, size_t nItems, bool wait);
private:
U8* start;
size_t offset;
virtual bool fillBuffer(size_t maxSize, bool wait);
private:
static unsigned int seed;
#ifdef RFB_HAVE_WINCRYPT
HCRYPTPROV provider;

50
common/rdr/TLSInStream.cxx
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@ -30,21 +30,19 @@
#ifdef HAVE_GNUTLS
using namespace rdr;
enum { DEFAULT_BUF_SIZE = 16384 };
ssize_t TLSInStream::pull(gnutls_transport_ptr_t str, void* data, size_t size)
{
TLSInStream* self= (TLSInStream*) str;
InStream *in = self->in;
try {
if (!in->check(1, 1, false)) {
if (!in->check(1, false)) {
gnutls_transport_set_errno(self->session, EAGAIN);
return -1;
}
if ((size_t)(in->getend() - in->getptr()) < size)
size = in->getend() - in->getptr();
if (in->avail() < size)
size = in->avail();
in->readBytes(data, size);
@ -57,12 +55,10 @@ ssize_t TLSInStream::pull(gnutls_transport_ptr_t str, void* data, size_t size)
}
TLSInStream::TLSInStream(InStream* _in, gnutls_session_t _session)
: session(_session), in(_in), bufSize(DEFAULT_BUF_SIZE), offset(0)
: session(_session), in(_in)
{
gnutls_transport_ptr_t recv, send;
ptr = end = start = new U8[bufSize];
gnutls_transport_set_pull_function(session, pull);
gnutls_transport_get_ptr2(session, &recv, &send);
gnutls_transport_set_ptr2(session, this, send);
@ -71,40 +67,16 @@ TLSInStream::TLSInStream(InStream* _in, gnutls_session_t _session)
TLSInStream::~TLSInStream()
{
gnutls_transport_set_pull_function(session, NULL);
delete[] start;
}
size_t TLSInStream::pos()
{
return offset + ptr - start;
}
size_t TLSInStream::overrun(size_t itemSize, size_t nItems, bool wait)
bool TLSInStream::fillBuffer(size_t maxSize, bool wait)
{
if (itemSize > bufSize)
throw Exception("TLSInStream overrun: max itemSize exceeded");
if (end - ptr != 0)
memmove(start, ptr, end - ptr);
offset += ptr - start;
end -= ptr - start;
ptr = start;
while ((size_t)(end - start) < itemSize) {
size_t n = readTLS((U8*) end, start + bufSize - end, wait);
if (!wait && n == 0)
return 0;
end += n;
}
size_t nAvail;
nAvail = (end - ptr) / itemSize;
if (nAvail < nItems)
return nAvail;
size_t n = readTLS((U8*) end, maxSize, wait);
if (!wait && n == 0)
return false;
end += n;
return nItems;
return true;
}
size_t TLSInStream::readTLS(U8* buf, size_t len, bool wait)
@ -112,7 +84,7 @@ size_t TLSInStream::readTLS(U8* buf, size_t len, bool wait)
int n;
if (gnutls_record_check_pending(session) == 0) {
n = in->check(1, 1, wait);
n = in->check(1, wait);
if (n == 0)
return 0;
}

11
common/rdr/TLSInStream.h
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@ -27,27 +27,22 @@
#ifdef HAVE_GNUTLS
#include <gnutls/gnutls.h>
#include <rdr/InStream.h>
#include <rdr/BufferedInStream.h>
namespace rdr {
class TLSInStream : public InStream {
class TLSInStream : public BufferedInStream {
public:
TLSInStream(InStream* in, gnutls_session_t session);
virtual ~TLSInStream();
size_t pos();
private:
size_t overrun(size_t itemSize, size_t nItems, bool wait);
virtual bool fillBuffer(size_t maxSize, bool wait);
size_t readTLS(U8* buf, size_t len, bool wait);
static ssize_t pull(gnutls_transport_ptr_t str, void* data, size_t size);
gnutls_session_t session;
InStream* in;
size_t bufSize;
size_t offset;
U8* start;
};
};

13
common/rdr/TLSOutStream.cxx
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@ -93,19 +93,12 @@ void TLSOutStream::flush()
out->flush();
}
size_t TLSOutStream::overrun(size_t itemSize, size_t nItems)
void TLSOutStream::overrun(size_t needed)
{
if (itemSize > bufSize)
throw Exception("TLSOutStream overrun: max itemSize exceeded");
if (needed > bufSize)
throw Exception("TLSOutStream overrun: buffer size exceeded");
flush();
size_t nAvail;
nAvail = (end - ptr) / itemSize;
if (nAvail < nItems)
return nAvail;
return nItems;
}
size_t TLSOutStream::writeTLS(const U8* data, size_t length)

2
common/rdr/TLSOutStream.h
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@ -39,7 +39,7 @@ namespace rdr {
size_t length();
protected:
size_t overrun(size_t itemSize, size_t nItems);
virtual void overrun(size_t needed);
private:
size_t writeTLS(const U8* data, size_t length);

60
common/rdr/ZlibInStream.cxx
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@ -24,41 +24,30 @@
using namespace rdr;
enum { DEFAULT_BUF_SIZE = 16384 };
ZlibInStream::ZlibInStream(size_t bufSize_)
: underlying(0), bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0),
zs(NULL), bytesIn(0)
ZlibInStream::ZlibInStream()
: underlying(0), zs(NULL), bytesIn(0)
{
ptr = end = start = new U8[bufSize];
init();
}
ZlibInStream::~ZlibInStream()
{
deinit();
delete [] start;
}
void ZlibInStream::setUnderlying(InStream* is, size_t bytesIn_)
{
underlying = is;
bytesIn = bytesIn_;
ptr = end = start;
}
size_t ZlibInStream::pos()
{
return offset + ptr - start;
skip(avail());
}
void ZlibInStream::flushUnderlying()
{
ptr = end = start;
while (bytesIn > 0) {
decompress(true);
end = start; // throw away any data
if (!check(1))
throw Exception("ZlibInStream: failed to flush remaining stream data");
skip(avail());
}
setUnderlying(NULL, 0);
@ -96,47 +85,18 @@ void ZlibInStream::deinit()
zs = NULL;
}
size_t ZlibInStream::overrun(size_t itemSize, size_t nItems, bool wait)
{
if (itemSize > bufSize)
throw Exception("ZlibInStream overrun: max itemSize exceeded");
if (end - ptr != 0)
memmove(start, ptr, end - ptr);
offset += ptr - start;
end -= ptr - start;
ptr = start;
while ((size_t)(end - ptr) < itemSize) {
if (!decompress(wait))
return 0;
}
size_t nAvail;
nAvail = (end - ptr) / itemSize;
if (nAvail < nItems)
return nAvail;
return nItems;
}
// decompress() calls the decompressor once. Note that this won't necessarily
// generate any output data - it may just consume some input data. Returns
// false if wait is false and we would block on the underlying stream.
bool ZlibInStream::decompress(bool wait)
bool ZlibInStream::fillBuffer(size_t maxSize, bool wait)
{
if (!underlying)
throw Exception("ZlibInStream overrun: no underlying stream");
zs->next_out = (U8*)end;
zs->avail_out = start + bufSize - end;
zs->avail_out = maxSize;
size_t n = underlying->check(1, 1, wait);
size_t n = underlying->check(1, wait);
if (n == 0) return false;
zs->next_in = (U8*)underlying->getptr();
zs->avail_in = underlying->getend() - underlying->getptr();
zs->avail_in = underlying->avail();
if (zs->avail_in > bytesIn)
zs->avail_in = bytesIn;

16
common/rdr/ZlibInStream.h
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@ -24,38 +24,32 @@
#ifndef __RDR_ZLIBINSTREAM_H__
#define __RDR_ZLIBINSTREAM_H__
#include <rdr/InStream.h>
#include <rdr/BufferedInStream.h>
struct z_stream_s;
namespace rdr {
class ZlibInStream : public InStream {
class ZlibInStream : public BufferedInStream {
public:
ZlibInStream(size_t bufSize=0);
ZlibInStream();
virtual ~ZlibInStream();
void setUnderlying(InStream* is, size_t bytesIn);
void flushUnderlying();
size_t pos();
void reset();
private:
void init();
void deinit();
size_t overrun(size_t itemSize, size_t nItems, bool wait);
bool decompress(bool wait);
virtual bool fillBuffer(size_t maxSize, bool wait);
private:
InStream* underlying;
size_t bufSize;
size_t offset;
z_stream_s* zs;
size_t bytesIn;
U8* start;
};
} // end of namespace rdr

21
common/rdr/ZlibOutStream.cxx
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@ -30,9 +30,9 @@ using namespace rdr;
enum { DEFAULT_BUF_SIZE = 16384 };
ZlibOutStream::ZlibOutStream(OutStream* os, size_t bufSize_, int compressLevel)
ZlibOutStream::ZlibOutStream(OutStream* os, int compressLevel)
: underlying(os), compressionLevel(compressLevel), newLevel(compressLevel),
bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0)
bufSize(DEFAULT_BUF_SIZE), offset(0)
{
zs = new z_stream;
zs->zalloc = Z_NULL;
@ -95,18 +95,18 @@ void ZlibOutStream::flush()
ptr = start;
}
size_t ZlibOutStream::overrun(size_t itemSize, size_t nItems)
void ZlibOutStream::overrun(size_t needed)
{
#ifdef ZLIBOUT_DEBUG
fprintf(stderr,"zos overrun\n");
#endif
if (itemSize > bufSize)
throw Exception("ZlibOutStream overrun: max itemSize exceeded");
if (needed > bufSize)
throw Exception("ZlibOutStream overrun: buffer size exceeded");
checkCompressionLevel();
while ((size_t)(end - ptr) < itemSize) {
while (avail() < needed) {
zs->next_in = start;
zs->avail_in = ptr - start;
@ -126,13 +126,6 @@ size_t ZlibOutStream::overrun(size_t itemSize, size_t nItems)
ptr -= zs->next_in - start;
}
}
size_t nAvail;
nAvail = (end - ptr) / itemSize;
if (nAvail < nItems)
return nAvail;
return nItems;
}
void ZlibOutStream::deflate(int flush)
@ -148,7 +141,7 @@ void ZlibOutStream::deflate(int flush)
do {
underlying->check(1);
zs->next_out = underlying->getptr();
zs->avail_out = underlying->getend() - underlying->getptr();
zs->avail_out = underlying->avail();
#ifdef ZLIBOUT_DEBUG
fprintf(stderr,"zos: calling deflate, avail_in %d, avail_out %d\n",

4
common/rdr/ZlibOutStream.h
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@ -35,7 +35,7 @@ namespace rdr {
public:
ZlibOutStream(OutStream* os=0, size_t bufSize=0, int compressionLevel=-1);
ZlibOutStream(OutStream* os=0, int compressionLevel=-1);
virtual ~ZlibOutStream();
void setUnderlying(OutStream* os);
@ -45,7 +45,7 @@ namespace rdr {
private:
size_t overrun(size_t itemSize, size_t nItems);
virtual void overrun(size_t needed);
void deflate(int flush);
void checkCompressionLevel();

128
common/rfb/CConnection.cxx
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@ -20,6 +20,7 @@
#include <string.h>
#include <rfb/Exception.h>
#include <rfb/clipboardTypes.h>
#include <rfb/fenceTypes.h>
#include <rfb/CMsgReader.h>
#include <rfb/CMsgWriter.h>
@ -42,7 +43,8 @@ CConnection::CConnection()
: csecurity(0), is(0), os(0), reader_(0), writer_(0),
shared(false),
state_(RFBSTATE_UNINITIALISED), useProtocol3_3(false),
framebuffer(NULL), decoder(this)
framebuffer(NULL), decoder(this),
serverClipboard(NULL), hasLocalClipboard(false)
{
}
@ -54,6 +56,7 @@ CConnection::~CConnection()
reader_ = 0;
delete writer_;
writer_ = 0;
strFree(serverClipboard);
}
void CConnection::setStreams(rdr::InStream* is_, rdr::OutStream* os_)
@ -342,6 +345,79 @@ void CConnection::dataRect(const Rect& r, int encoding)
decoder.decodeRect(r, encoding, framebuffer);
}
void CConnection::serverCutText(const char* str)
{
hasLocalClipboard = false;
strFree(serverClipboard);
serverClipboard = NULL;
serverClipboard = latin1ToUTF8(str);
handleClipboardAnnounce(true);
}
void CConnection::handleClipboardCaps(rdr::U32 flags,
const rdr::U32* lengths)
{
rdr::U32 sizes[] = { 0 };
CMsgHandler::handleClipboardCaps(flags, lengths);
writer()->writeClipboardCaps(rfb::clipboardUTF8 |
rfb::clipboardRequest |
rfb::clipboardPeek |
rfb::clipboardNotify |
rfb::clipboardProvide,
sizes);
}
void CConnection::handleClipboardRequest(rdr::U32 flags)
{
if (!(flags & rfb::clipboardUTF8))
return;
if (!hasLocalClipboard)
return;
handleClipboardRequest();
}
void CConnection::handleClipboardPeek(rdr::U32 flags)
{
if (!hasLocalClipboard)
return;
if (cp.clipboardFlags() & rfb::clipboardNotify)
writer()->writeClipboardNotify(rfb::clipboardUTF8);
}
void CConnection::handleClipboardNotify(rdr::U32 flags)
{
strFree(serverClipboard);
serverClipboard = NULL;
if (flags & rfb::clipboardUTF8) {
hasLocalClipboard = false;
handleClipboardAnnounce(true);
} else {
handleClipboardAnnounce(false);
}
}
void CConnection::handleClipboardProvide(rdr::U32 flags,
const size_t* lengths,
const rdr::U8* const* data)
{
if (!(flags & rfb::clipboardUTF8))
return;
strFree(serverClipboard);
serverClipboard = NULL;
serverClipboard = convertLF((const char*)data[0], lengths[0]);
// FIXME: Should probably verify that this data was actually requested
handleClipboardData(serverClipboard);
}
void CConnection::authSuccess()
{
}
@ -364,3 +440,53 @@ void CConnection::fence(rdr::U32 flags, unsigned len, const char data[])
writer()->writeFence(flags, len, data);
}
void CConnection::handleClipboardRequest()
{
}
void CConnection::handleClipboardAnnounce(bool available)
{
}
void CConnection::handleClipboardData(const char* data)
{
}
void CConnection::requestClipboard()
{
if (serverClipboard != NULL) {
handleClipboardData(serverClipboard);
return;
}
if (cp.clipboardFlags() & rfb::clipboardRequest)
writer()->writeClipboardRequest(rfb::clipboardUTF8);
}
void CConnection::announceClipboard(bool available)
{
hasLocalClipboard = available;
if (cp.clipboardFlags() & rfb::clipboardNotify)
writer()->writeClipboardNotify(available ? rfb::clipboardUTF8 : 0);
else {
if (available)
handleClipboardRequest();
}
}
void CConnection::sendClipboardData(const char* data)
{
if (cp.clipboardFlags() & rfb::clipboardProvide) {
CharArray filtered(convertCRLF(data));
size_t sizes[1] = { strlen(filtered.buf) + 1 };
const rdr::U8* data[1] = { (const rdr::U8*)filtered.buf };
writer()->writeClipboardProvide(rfb::clipboardUTF8, sizes, data);
} else {
CharArray latin1(utf8ToLatin1(data));
writer()->writeClientCutText(latin1.buf, strlen(latin1.buf));
}
}

48
common/rfb/CConnection.h
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@ -107,6 +107,17 @@ namespace rfb {
virtual void framebufferUpdateEnd();
virtual void dataRect(const Rect& r, int encoding);
virtual void serverCutText(const char* str);
virtual void handleClipboardCaps(rdr::U32 flags,
const rdr::U32* lengths);
virtual void handleClipboardRequest(rdr::U32 flags);
virtual void handleClipboardPeek(rdr::U32 flags);
virtual void handleClipboardNotify(rdr::U32 flags);
virtual void handleClipboardProvide(rdr::U32 flags,
const size_t* lengths,
const rdr::U8* const* data);
// Methods to be overridden in a derived class
@ -121,9 +132,43 @@ namespace rfb {
// derived class must call on to CConnection::serverInit().
virtual void serverInit();
// handleClipboardRequest() is called whenever the server requests
// the client to send over its clipboard data. It will only be
// called after the client has first announced a clipboard change
// via announceClipboard().
virtual void handleClipboardRequest();
// handleClipboardAnnounce() is called to indicate a change in the
// clipboard on the server. Call requestClipboard() to access the
// actual data.
virtual void handleClipboardAnnounce(bool available);
// handleClipboardData() is called when the server has sent over
// the clipboard data as a result of a previous call to
// requestClipboard(). Note that this function might never be
// called if the clipboard data was no longer available when the
// server received the request.
virtual void handleClipboardData(const char* data);
// Other methods
// requestClipboard() will result in a request to the server to
// transfer its clipboard data. A call to handleClipboardData()
// will be made once the data is available.
virtual void requestClipboard();
// announceClipboard() informs the server of changes to the
// clipboard on the client. The server may later request the
// clipboard data via handleClipboardRequest().
virtual void announceClipboard(bool available);
// sendClipboardData() transfers the clipboard data to the server
// and should be called whenever the server has requested the
// clipboard via handleClipboardRequest().
virtual void sendClipboardData(const char* data);
CMsgReader* reader() { return reader_; }
CMsgWriter* writer() { return writer_; }
@ -190,6 +235,9 @@ namespace rfb {
ModifiablePixelBuffer* framebuffer;
DecodeManager decoder;
char* serverClipboard;
bool hasLocalClipboard;
};
}
#endif

23
common/rfb/CMsgHandler.cxx
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@ -92,3 +92,26 @@ void CMsgHandler::setLEDState(unsigned int state)
{
cp.setLEDState(state);
}
void CMsgHandler::handleClipboardCaps(rdr::U32 flags, const rdr::U32* lengths)
{
cp.setClipboardCaps(flags, lengths);
}
void CMsgHandler::handleClipboardRequest(rdr::U32 flags)
{
}
void CMsgHandler::handleClipboardPeek(rdr::U32 flags)
{
}
void CMsgHandler::handleClipboardNotify(rdr::U32 flags)
{
}
void CMsgHandler::handleClipboardProvide(rdr::U32 flags,
const size_t* lengths,
const rdr::U8* const* data)
{
}

9
common/rfb/CMsgHandler.h
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@ -72,6 +72,15 @@ namespace rfb {
virtual void setLEDState(unsigned int state);
virtual void handleClipboardCaps(rdr::U32 flags,
const rdr::U32* lengths);
virtual void handleClipboardRequest(rdr::U32 flags);
virtual void handleClipboardPeek(rdr::U32 flags);
virtual void handleClipboardNotify(rdr::U32 flags);
virtual void handleClipboardProvide(rdr::U32 flags,
const size_t* lengths,
const rdr::U8* const* data);
ConnParams cp;
};
}

104
common/rfb/CMsgWriter.cxx
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@ -18,10 +18,14 @@
*/
#include <stdio.h>
#include <rdr/OutStream.h>
#include <rdr/MemOutStream.h>
#include <rdr/ZlibOutStream.h>
#include <rfb/msgTypes.h>
#include <rfb/fenceTypes.h>
#include <rfb/encodings.h>
#include <rfb/qemuTypes.h>
#include <rfb/clipboardTypes.h>
#include <rfb/Exception.h>
#include <rfb/PixelFormat.h>
#include <rfb/Rect.h>
@ -57,7 +61,7 @@ void CMsgWriter::writeSetPixelFormat(const PixelFormat& pf)
void CMsgWriter::writeSetEncodings(int nEncodings, rdr::U32* encodings)
{
startMsg(msgTypeSetEncodings);
os->skip(1);
os->pad(1);
os->writeU16(nEncodings);
for (int i = 0; i < nEncodings; i++)
os->writeU32(encodings[i]);
@ -265,6 +269,104 @@ void CMsgWriter::writeClientCutText(const char* str, rdr::U32 len)
endMsg();
}
void CMsgWriter::writeClipboardCaps(rdr::U32 caps,
const rdr::U32* lengths)
{
size_t i, count;
if (!(cp->clipboardFlags() & clipboardCaps))
throw Exception("Server does not support clipboard \"caps\" action");
count = 0;
for (i = 0;i < 16;i++) {
if (caps & (1 << i))
count++;
}
startMsg(msgTypeClientCutText);
os->pad(3);
os->writeS32(-(4 + 4 * count));
os->writeU32(caps | clipboardCaps);
count = 0;
for (i = 0;i < 16;i++) {
if (caps & (1 << i))
os->writeU32(lengths[count++]);
}
endMsg();
}
void CMsgWriter::writeClipboardRequest(rdr::U32 flags)
{
if (!(cp->clipboardFlags() & clipboardRequest))
throw Exception("Server does not support clipboard \"request\" action");
startMsg(msgTypeClientCutText);
os->pad(3);
os->writeS32(-4);
os->writeU32(flags | clipboardRequest);
endMsg();
}
void CMsgWriter::writeClipboardPeek(rdr::U32 flags)
{
if (!(cp->clipboardFlags() & clipboardPeek))
throw Exception("Server does not support clipboard \"peek\" action");
startMsg(msgTypeClientCutText);
os->pad(3);
os->writeS32(-4);
os->writeU32(flags | clipboardPeek);
endMsg();
}
void CMsgWriter::writeClipboardNotify(rdr::U32 flags)
{
if (!(cp->clipboardFlags() & clipboardNotify))
throw Exception("Server does not support clipboard \"notify\" action");
startMsg(msgTypeClientCutText);
os->pad(3);
os->writeS32(-4);
os->writeU32(flags | clipboardNotify);
endMsg();
}
void CMsgWriter::writeClipboardProvide(rdr::U32 flags,
const size_t* lengths,
const rdr::U8* const* data)
{
rdr::MemOutStream mos;
rdr::ZlibOutStream zos;
int i, count;
if (!(cp->clipboardFlags() & clipboardProvide))
throw Exception("Server does not support clipboard \"provide\" action");
zos.setUnderlying(&mos);
count = 0;
for (i = 0;i < 16;i++) {
if (!(flags & (1 << i)))
continue;
zos.writeU32(lengths[count]);
zos.writeBytes(data[count], lengths[count]);
count++;
}
zos.flush();
startMsg(msgTypeClientCutText);
os->pad(3);
os->writeS32(-(4 + mos.length()));
os->writeU32(flags | clipboardProvide);
os->writeBytes(mos.data(), mos.length());
endMsg();
}
void CMsgWriter::startMsg(int type)
{
os->writeU8(type);

7
common/rfb/CMsgWriter.h
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@ -56,6 +56,13 @@ namespace rfb {
void writePointerEvent(const Point& pos, int buttonMask);
void writeClientCutText(const char* str, rdr::U32 len);
void writeClipboardCaps(rdr::U32 caps, const rdr::U32* lengths);
void writeClipboardRequest(rdr::U32 flags);
void writeClipboardPeek(rdr::U32 flags);
void writeClipboardNotify(rdr::U32 flags);
void writeClipboardProvide(rdr::U32 flags, const size_t* lengths,
const rdr::U8* const* data);
protected:
void startMsg(int type);
void endMsg();

36
common/rfb/ConnParams.cxx
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@ -24,6 +24,7 @@
#include <rfb/Exception.h>
#include <rfb/encodings.h>
#include <rfb/ledStates.h>
#include <rfb/clipboardTypes.h>
#include <rfb/ConnParams.h>
#include <rfb/ServerCore.h>
#include <rfb/SMsgHandler.h>
@ -36,19 +37,25 @@ ConnParams::ConnParams()
width(0), height(0), useCopyRect(false),
supportsLocalCursor(false), supportsLocalXCursor(false),
supportsLocalCursorWithAlpha(false),
supportsCursorPosition(false),
supportsDesktopResize(false), supportsExtendedDesktopSize(false),
supportsDesktopRename(false), supportsLastRect(false),
supportsLEDState(false), supportsQEMUKeyEvent(false),
supportsWEBP(false),
supportsSetDesktopSize(false), supportsFence(false),
supportsContinuousUpdates(false),
supportsContinuousUpdates(false), supportsExtendedClipboard(false),
compressLevel(2), qualityLevel(-1), fineQualityLevel(-1),
subsampling(subsampleUndefined), name_(0), verStrPos(0),
subsampling(subsampleUndefined), name_(0), cursorPos_(0, 0), verStrPos(0),
ledState_(ledUnknown), shandler(NULL)
{
memset(kasmPassed, 0, KASM_NUM_SETTINGS);
setName("");
cursor_ = new Cursor(0, 0, Point(), NULL);
clipFlags = clipboardUTF8 | clipboardRTF | clipboardHTML |
clipboardRequest | clipboardNotify | clipboardProvide;
memset(clipSizes, 0, sizeof(clipSizes));
clipSizes[0] = 20 * 1024 * 1024;
}
ConnParams::~ConnParams()
@ -101,6 +108,11 @@ void ConnParams::setCursor(const Cursor& other)
cursor_ = new Cursor(other);
}
void ConnParams::setCursorPos(const Point& pos)
{
cursorPos_ = pos;
}
bool ConnParams::supportsEncoding(rdr::S32 encoding) const
{
return encodings_.count(encoding) != 0;
@ -147,6 +159,9 @@ void ConnParams::setEncodings(int nEncodings, const rdr::S32* encodings)
case pseudoEncodingExtendedDesktopSize:
supportsExtendedDesktopSize = true;
break;
case pseudoEncodingVMwareCursorPosition:
supportsCursorPosition = true;
break;
case pseudoEncodingDesktopName:
supportsDesktopRename = true;
break;
@ -168,6 +183,9 @@ void ConnParams::setEncodings(int nEncodings, const rdr::S32* encodings)
case pseudoEncodingContinuousUpdates:
supportsContinuousUpdates = true;
break;
case pseudoEncodingExtendedClipboard:
supportsExtendedClipboard = true;
break;
case pseudoEncodingSubsamp1X:
subsampling = subsampleNone;
break;
@ -259,3 +277,17 @@ void ConnParams::setLEDState(unsigned int state)
{
ledState_ = state;
}
void ConnParams::setClipboardCaps(rdr::U32 flags, const rdr::U32* lengths)
{
int i, num;
clipFlags = flags;
num = 0;
for (i = 0;i < 16;i++) {
if (!(flags & (1 << i)))
continue;
clipSizes[i] = lengths[num++];
}
}

11
common/rfb/ConnParams.h
Unescape Escape View File

@ -84,6 +84,9 @@ namespace rfb {
const Cursor& cursor() const { return *cursor_; }
void setCursor(const Cursor& cursor);
const Point& cursorPos() const { return cursorPos_; }
void setCursorPos(const Point& pos);
bool supportsEncoding(rdr::S32 encoding) const;
void setEncodings(int nEncodings, const rdr::S32* encodings);
@ -91,11 +94,15 @@ namespace rfb {
unsigned int ledState() { return ledState_; }
void setLEDState(unsigned int state);
rdr::U32 clipboardFlags() const { return clipFlags; }
void setClipboardCaps(rdr::U32 flags, const rdr::U32* lengths);
bool useCopyRect;
bool supportsLocalCursor;
bool supportsLocalXCursor;
bool supportsLocalCursorWithAlpha;
bool supportsCursorPosition;
bool supportsDesktopResize;
bool supportsExtendedDesktopSize;
bool supportsDesktopRename;
@ -107,6 +114,7 @@ namespace rfb {
bool supportsSetDesktopSize;
bool supportsFence;
bool supportsContinuousUpdates;
bool supportsExtendedClipboard;
int compressLevel;
int qualityLevel;
@ -136,11 +144,14 @@ namespace rfb {
PixelFormat pf_;
char* name_;
Cursor* cursor_;
Point cursorPos_;
std::set<rdr::S32> encodings_;
char verStr[13];
int verStrPos;
unsigned int ledState_;
SMsgHandler *shandler;
rdr::U32 clipFlags;
rdr::U32 clipSizes[16];
};
}
#endif

6
common/rfb/JpegCompressor.cxx
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@ -85,7 +85,7 @@ JpegInitDestination(j_compress_ptr cinfo)
jc->clear();
dest->pub.next_output_byte = jc->getptr();
dest->pub.free_in_buffer = jc->getend() - jc->getptr();
dest->pub.free_in_buffer = jc->avail();
}
static boolean
@ -95,9 +95,9 @@ JpegEmptyOutputBuffer(j_compress_ptr cinfo)
JpegCompressor *jc = dest->instance;
jc->setptr(jc->getend());
jc->overrun(jc->getend() - jc->getstart(), 1);
jc->check(jc->length());
dest->pub.next_output_byte = jc->getptr();
dest->pub.free_in_buffer = jc->getend() - jc->getptr();
dest->pub.free_in_buffer = jc->avail();
return TRUE;
}

6
common/rfb/JpegCompressor.h
Unescape Escape View File

@ -47,12 +47,6 @@ namespace rfb {
void writeBytes(const void*, int);
inline rdr::U8* getstart() { return start; }
virtual inline size_t overrun(size_t itemSize, size_t nItems) {
return MemOutStream::overrun(itemSize, nItems);
}
private:
struct jpeg_compress_struct *cinfo;

124
common/rfb/SConnection.cxx
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@ -20,6 +20,7 @@
#include <string.h>
#include <rfb/Exception.h>
#include <rfb/Security.h>
#include <rfb/clipboardTypes.h>
#include <rfb/msgTypes.h>
#include <rfb/fenceTypes.h>
#include <rfb/SMsgReader.h>
@ -52,7 +53,8 @@ SConnection::SConnection()
: readyForSetColourMapEntries(false),
is(0), os(0), reader_(0), writer_(0),
ssecurity(0), state_(RFBSTATE_UNINITIALISED),
preferredEncoding(encodingRaw)
preferredEncoding(encodingRaw),
clientClipboard(NULL), hasLocalClipboard(false)
{
defaultMajorVersion = 3;
defaultMinorVersion = 8;
@ -69,6 +71,7 @@ SConnection::~SConnection()
reader_ = 0;
delete writer_;
writer_ = 0;
strFree(clientClipboard);
}
void SConnection::setStreams(rdr::InStream* is_, rdr::OutStream* os_)
@ -281,6 +284,73 @@ void SConnection::setEncodings(int nEncodings, const rdr::S32* encodings)
}
SMsgHandler::setEncodings(nEncodings, encodings);
if (cp.supportsExtendedClipboard) {
rdr::U32 sizes[] = { 0 };
writer()->writeClipboardCaps(rfb::clipboardUTF8 |
rfb::clipboardRequest |
rfb::clipboardPeek |
rfb::clipboardNotify |
rfb::clipboardProvide,
sizes);
}
}
void SConnection::clientCutText(const char* str, int len)
{
hasLocalClipboard = false;
strFree(clientClipboard);
clientClipboard = NULL;
clientClipboard = latin1ToUTF8(str);
handleClipboardAnnounce(true);
}
void SConnection::handleClipboardRequest(rdr::U32 flags)
{
if (!(flags & rfb::clipboardUTF8))
return;
if (!hasLocalClipboard)
return;
handleClipboardRequest();
}
void SConnection::handleClipboardPeek(rdr::U32 flags)
{
if (!hasLocalClipboard)
return;
if (cp.clipboardFlags() & rfb::clipboardNotify)
writer()->writeClipboardNotify(rfb::clipboardUTF8);
}
void SConnection::handleClipboardNotify(rdr::U32 flags)
{
strFree(clientClipboard);
clientClipboard = NULL;
if (flags & rfb::clipboardUTF8) {
handleClipboardAnnounce(true);
hasLocalClipboard = false;
} else {
handleClipboardAnnounce(false);
}
}
void SConnection::handleClipboardProvide(rdr::U32 flags,
const size_t* lengths,
const rdr::U8* const* data)
{
if (!(flags & rfb::clipboardUTF8))
return;
strFree(clientClipboard);
clientClipboard = NULL;
clientClipboard = convertLF((const char*)data[0], lengths[0]);
handleClipboardData(clientClipboard, strlen(clientClipboard));
}
void SConnection::supportsQEMUKeyEvent()
@ -375,6 +445,58 @@ void SConnection::enableContinuousUpdates(bool enable,
{
}
void SConnection::handleClipboardRequest()
{
}
void SConnection::handleClipboardAnnounce(bool available)
{
}
void SConnection::handleClipboardData(const char* data, int len)
{
}
void SConnection::requestClipboard()
{
if (clientClipboard != NULL) {
handleClipboardData(clientClipboard, strlen(clientClipboard));
return;
}
if (cp.supportsExtendedClipboard &&
(cp.clipboardFlags() & rfb::clipboardRequest))
writer()->writeClipboardRequest(rfb::clipboardUTF8);
}
void SConnection::announceClipboard(bool available)
{
hasLocalClipboard = available;
if (cp.supportsExtendedClipboard &&
(cp.clipboardFlags() & rfb::clipboardNotify))
writer()->writeClipboardNotify(available ? rfb::clipboardUTF8 : 0);
else {
if (available)
handleClipboardRequest();
}
}
void SConnection::sendClipboardData(const char* data, int len)
{
if (cp.supportsExtendedClipboard &&
(cp.clipboardFlags() & rfb::clipboardProvide)) {
CharArray filtered(convertCRLF(data));
size_t sizes[1] = { strlen(filtered.buf) + 1 };
const rdr::U8* data[1] = { (const rdr::U8*)filtered.buf };
writer()->writeClipboardProvide(rfb::clipboardUTF8, sizes, data);
} else {
CharArray latin1(utf8ToLatin1(data));
writer()->writeServerCutText(latin1.buf, strlen(latin1.buf));
}
}
void SConnection::writeFakeColourMap(void)
{
int i;

47
common/rfb/SConnection.h
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@ -73,6 +73,15 @@ namespace rfb {
virtual void setEncodings(int nEncodings, const rdr::S32* encodings);
virtual void clientCutText(const char* str, int len);
virtual void handleClipboardRequest(rdr::U32 flags);
virtual void handleClipboardPeek(rdr::U32 flags);
virtual void handleClipboardNotify(rdr::U32 flags);
virtual void handleClipboardProvide(rdr::U32 flags,
const size_t* lengths,
const rdr::U8* const* data);
virtual void supportsQEMUKeyEvent();
// Methods to be overridden in a derived class
@ -118,6 +127,25 @@ namespace rfb {
virtual void enableContinuousUpdates(bool enable,
int x, int y, int w, int h);
// handleClipboardRequest() is called whenever the client requests
// the server to send over its clipboard data. It will only be
// called after the server has first announced a clipboard change
// via announceClipboard().
virtual void handleClipboardRequest();
// handleClipboardAnnounce() is called to indicate a change in the
// clipboard on the client. Call requestClipboard() to access the
// actual data.
virtual void handleClipboardAnnounce(bool available);
// handleClipboardData() is called when the client has sent over
// the clipboard data as a result of a previous call to
// requestClipboard(). Note that this function might never be
// called if the clipboard data was no longer available when the
// client received the request.
virtual void handleClipboardData(const char* data, int len);
virtual void add_changed_all() {}
// setAccessRights() allows a security package to limit the access rights
@ -138,6 +166,22 @@ namespace rfb {
// Other methods
// requestClipboard() will result in a request to the client to
// transfer its clipboard data. A call to handleClipboardData()
// will be made once the data is available.
virtual void requestClipboard();
// announceClipboard() informs the client of changes to the
// clipboard on the server. The client may later request the
// clipboard data via handleClipboardRequest().
virtual void announceClipboard(bool available);
// sendClipboardData() transfers the clipboard data to the client
// and should be called whenever the client has requested the
// clipboard via handleClipboardRequest().
virtual void sendClipboardData(const char* data, int len);
// authenticated() returns true if the client has authenticated
// successfully.
bool authenticated() { return (state_ == RFBSTATE_INITIALISATION ||
@ -203,6 +247,9 @@ namespace rfb {
SSecurity* ssecurity;
stateEnum state_;
rdr::S32 preferredEncoding;
char* clientClipboard;
bool hasLocalClipboard;
};
}
#endif

19
common/rfb/SDesktop.h
Unescape Escape View File

@ -77,6 +77,25 @@ namespace rfb {
// pointerEvent(), keyEvent() and clientCutText() are called in response to
// the relevant RFB protocol messages from clients.
// See InputHandler for method signatures.
// handleClipboardRequest() is called whenever a client requests
// the server to send over its clipboard data. It will only be
// called after the server has first announced a clipboard change
// via VNCServer::announceClipboard().
virtual void handleClipboardRequest() {}
// handleClipboardAnnounce() is called to indicate a change in the
// clipboard on a client. Call VNCServer::requestClipboard() to
// access the actual data.
virtual void handleClipboardAnnounce(bool __unused_attr available) {}
// handleClipboardData() is called when a client has sent over
// the clipboard data as a result of a previous call to
// VNCServer::requestClipboard(). Note that this function might
// never be called if the clipboard data was no longer available
// when the client received the request.
virtual void handleClipboardData(const char* __unused_attr data, int len __unused_attr) {}
protected:
virtual ~SDesktop() {}
};

23
common/rfb/SMsgHandler.cxx
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@ -64,6 +64,29 @@ void SMsgHandler::setEncodings(int nEncodings, const rdr::S32* encodings)
supportsQEMUKeyEvent();
}
void SMsgHandler::handleClipboardCaps(rdr::U32 flags, const rdr::U32* lengths)
{
cp.setClipboardCaps(flags, lengths);
}
void SMsgHandler::handleClipboardRequest(rdr::U32 flags)
{
}
void SMsgHandler::handleClipboardPeek(rdr::U32 flags)
{
}
void SMsgHandler::handleClipboardNotify(rdr::U32 flags)
{
}
void SMsgHandler::handleClipboardProvide(rdr::U32 flags,
const size_t* lengths,
const rdr::U8* const* data)
{
}
void SMsgHandler::supportsLocalCursor()
{
}

9
common/rfb/SMsgHandler.h
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@ -54,6 +54,15 @@ namespace rfb {
virtual void enableContinuousUpdates(bool enable,
int x, int y, int w, int h) = 0;
virtual void handleClipboardCaps(rdr::U32 flags,
const rdr::U32* lengths);
virtual void handleClipboardRequest(rdr::U32 flags);
virtual void handleClipboardPeek(rdr::U32 flags);
virtual void handleClipboardNotify(rdr::U32 flags);
virtual void handleClipboardProvide(rdr::U32 flags,
const size_t* lengths,
const rdr::U8* const* data);
virtual void sendStats() = 0;
virtual bool canChangeKasmSettings() const = 0;

109
common/rfb/SMsgReader.cxx
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@ -18,8 +18,11 @@
*/
#include <stdio.h>
#include <rdr/InStream.h>
#include <rdr/ZlibInStream.h>
#include <rfb/msgTypes.h>
#include <rfb/qemuTypes.h>
#include <rfb/clipboardTypes.h>
#include <rfb/Exception.h>
#include <rfb/util.h>
#include <rfb/SMsgHandler.h>
@ -224,11 +227,15 @@ void SMsgReader::readPointerEvent()
void SMsgReader::readClientCutText()
{
is->skip(3);
int len = is->readU32();
if (len < 0) {
throw Exception("Cut text too long.");
rdr::U32 len = is->readU32();
if (len & 0x80000000) {
rdr::S32 slen = len;
slen = -slen;
readExtendedClipboard(slen);
return;
}
if (len > maxCutText) {
if (len > (size_t)maxCutText) {
is->skip(len);
vlog.error("Cut text too long (%d bytes) - ignoring", len);
return;
@ -239,6 +246,100 @@ void SMsgReader::readClientCutText()
handler->clientCutText(ca.buf, len);
}
void SMsgReader::readExtendedClipboard(rdr::S32 len)
{
rdr::U32 flags;
rdr::U32 action;
if (len < 4)
throw Exception("Invalid extended clipboard message");
if (len > maxCutText) {
vlog.error("Extended clipboard message too long (%d bytes) - ignoring", len);
is->skip(len);
return;
}
flags = is->readU32();
action = flags & clipboardActionMask;
if (action & clipboardCaps) {
int i;
size_t num;
rdr::U32 lengths[16];
num = 0;
for (i = 0;i < 16;i++) {
if (flags & (1 << i))
num++;
}
if (len < (rdr::S32)(4 + 4*num))
throw Exception("Invalid extended clipboard message");
num = 0;
for (i = 0;i < 16;i++) {
if (flags & (1 << i))
lengths[num++] = is->readU32();
}
handler->handleClipboardCaps(flags, lengths);
} else if (action == clipboardProvide) {
rdr::ZlibInStream zis;
int i;
size_t num;
size_t lengths[16];
rdr::U8* buffers[16];
zis.setUnderlying(is, len - 4);
num = 0;
for (i = 0;i < 16;i++) {
if (!(flags & 1 << i))
continue;
lengths[num] = zis.readU32();
if (lengths[num] > (size_t)maxCutText) {
vlog.error("Extended clipboard data too long (%d bytes) - ignoring",
(unsigned)lengths[num]);
zis.skip(lengths[num]);
flags &= ~(1 << i);
continue;
}
buffers[num] = new rdr::U8[lengths[num]];
zis.readBytes(buffers[num], lengths[num]);
num++;
}
zis.flushUnderlying();
zis.setUnderlying(NULL, 0);
handler->handleClipboardProvide(flags, lengths, buffers);
num = 0;
for (i = 0;i < 16;i++) {
if (!(flags & 1 << i))
continue;
delete [] buffers[num++];
}
} else {
switch (action) {
case clipboardRequest:
handler->handleClipboardRequest(flags);
break;
case clipboardPeek:
handler->handleClipboardPeek(flags);
break;
case clipboardNotify:
handler->handleClipboardNotify(flags);
break;
default:
throw Exception("Invalid extended clipboard action");
}
}
}
void SMsgReader::readRequestStats()
{
is->skip(3);

1
common/rfb/SMsgReader.h
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@ -55,6 +55,7 @@ namespace rfb {
void readKeyEvent();
void readPointerEvent();
void readClientCutText();
void readExtendedClipboard(rdr::S32 len);
void readRequestStats();
void readQEMUMessage();

149
common/rfb/SMsgWriter.cxx
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@ -19,8 +19,12 @@
*/
#include <stdio.h>
#include <rdr/OutStream.h>
#include <rdr/MemOutStream.h>
#include <rdr/ZlibOutStream.h>
#include <rfb/msgTypes.h>
#include <rfb/fenceTypes.h>
#include <rfb/clipboardTypes.h>
#include <rfb/Exception.h>
#include <rfb/ConnParams.h>
#include <rfb/UpdateTracker.h>
@ -39,6 +43,7 @@ SMsgWriter::SMsgWriter(ConnParams* cp_, rdr::OutStream* os_)
needSetDesktopSize(false), needExtendedDesktopSize(false),
needSetDesktopName(false), needSetCursor(false),
needSetXCursor(false), needSetCursorWithAlpha(false),
needCursorPos(false),
needLEDState(false), needQEMUKeyEvent(false)
{
}
@ -88,6 +93,112 @@ void SMsgWriter::writeServerCutText(const char* str, int len)
endMsg();
}
void SMsgWriter::writeClipboardCaps(rdr::U32 caps,
const rdr::U32* lengths)
{
size_t i, count;
if (!cp->supportsExtendedClipboard)
throw Exception("Client does not support extended clipboard");
count = 0;
for (i = 0;i < 16;i++) {
if (caps & (1 << i))
count++;
}
startMsg(msgTypeServerCutText);
os->pad(3);
os->writeS32(-(4 + 4 * count));
os->writeU32(caps | clipboardCaps);
count = 0;
for (i = 0;i < 16;i++) {
if (caps & (1 << i))
os->writeU32(lengths[count++]);
}
endMsg();
}
void SMsgWriter::writeClipboardRequest(rdr::U32 flags)
{
if (!cp->supportsExtendedClipboard)
throw Exception("Client does not support extended clipboard");
if (!(cp->clipboardFlags() & clipboardRequest))
throw Exception("Client does not support clipboard \"request\" action");
startMsg(msgTypeServerCutText);
os->pad(3);
os->writeS32(-4);
os->writeU32(flags | clipboardRequest);
endMsg();
}
void SMsgWriter::writeClipboardPeek(rdr::U32 flags)
{
if (!cp->supportsExtendedClipboard)
throw Exception("Client does not support extended clipboard");
if (!(cp->clipboardFlags() & clipboardPeek))
throw Exception("Client does not support clipboard \"peek\" action");
startMsg(msgTypeServerCutText);
os->pad(3);
os->writeS32(-4);
os->writeU32(flags | clipboardPeek);
endMsg();
}
void SMsgWriter::writeClipboardNotify(rdr::U32 flags)
{
if (!cp->supportsExtendedClipboard)
throw Exception("Client does not support extended clipboard");
if (!(cp->clipboardFlags() & clipboardNotify))
throw Exception("Client does not support clipboard \"notify\" action");
startMsg(msgTypeServerCutText);
os->pad(3);
os->writeS32(-4);
os->writeU32(flags | clipboardNotify);
endMsg();
}
void SMsgWriter::writeClipboardProvide(rdr::U32 flags,
const size_t* lengths,
const rdr::U8* const* data)
{
rdr::MemOutStream mos;
rdr::ZlibOutStream zos;
int i, count;
if (!cp->supportsExtendedClipboard)
throw Exception("Client does not support extended clipboard");
if (!(cp->clipboardFlags() & clipboardProvide))
throw Exception("Client does not support clipboard \"provide\" action");
zos.setUnderlying(&mos);
count = 0;
for (i = 0;i < 16;i++) {
if (!(flags & (1 << i)))
continue;
zos.writeU32(lengths[count]);
zos.writeBytes(data[count], lengths[count]);
count++;
}
zos.flush();
startMsg(msgTypeServerCutText);
os->pad(3);
os->writeS32(-(4 + mos.length()));
os->writeU32(flags | clipboardProvide);
os->writeBytes(mos.data(), mos.length());
endMsg();
}
void SMsgWriter::writeStats(const char* str, int len)
{
startMsg(msgTypeStats);
@ -204,6 +315,14 @@ bool SMsgWriter::writeSetCursorWithAlpha()
return true;
}
void SMsgWriter::writeCursorPos()
{
if (!cp->supportsEncoding(pseudoEncodingVMwareCursorPosition))
throw Exception("Client does not support cursor position");
needCursorPos = true;
}
bool SMsgWriter::writeLEDState()
{
if (!cp->supportsLEDState)
@ -232,6 +351,8 @@ bool SMsgWriter::needFakeUpdate()
return true;
if (needSetCursor || needSetXCursor || needSetCursorWithAlpha)
return true;
if (needCursorPos)
return true;
if (needLEDState)
return true;
if (needQEMUKeyEvent)
@ -284,6 +405,8 @@ void SMsgWriter::writeFramebufferUpdateStart(int nRects)
nRects++;
if (needSetCursorWithAlpha)
nRects++;
if (needCursorPos)
nRects++;
if (needLEDState)
nRects++;
if (needQEMUKeyEvent)
@ -399,6 +522,18 @@ void SMsgWriter::writePseudoRects()
needSetCursorWithAlpha = false;
}
if (needCursorPos) {
const Point& cursorPos = cp->cursorPos();
if (cp->supportsEncoding(pseudoEncodingVMwareCursorPosition)) {
writeSetVMwareCursorPositionRect(cursorPos.x, cursorPos.y);
} else {
throw Exception("Client does not support cursor position");
}
needCursorPos = false;
}
if (needSetDesktopName) {
writeSetDesktopNameRect(cp->name());
needSetDesktopName = false;
@ -577,6 +712,20 @@ void SMsgWriter::writeSetCursorWithAlphaRect(int width, int height,
}
}
void SMsgWriter::writeSetVMwareCursorPositionRect(int hotspotX, int hotspotY)
{
if (!cp->supportsEncoding(pseudoEncodingVMwareCursorPosition))
throw Exception("Client does not support cursor position");
if (++nRectsInUpdate > nRectsInHeader && nRectsInHeader)
throw Exception("SMsgWriter::writeSetVMwareCursorRect: nRects out of sync");
os->writeS16(hotspotX);
os->writeS16(hotspotY);
os->writeU16(0);
os->writeU16(0);
os->writeU32(pseudoEncodingVMwareCursorPosition);
}
void SMsgWriter::writeLEDStateRect(rdr::U8 state)
{
if (!cp->supportsLEDState)

13
common/rfb/SMsgWriter.h
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@ -55,6 +55,14 @@ namespace rfb {
// writeBell() and writeServerCutText() do the obvious thing.
void writeBell();
void writeServerCutText(const char* str, int len);
void writeClipboardCaps(rdr::U32 caps, const rdr::U32* lengths);
void writeClipboardRequest(rdr::U32 flags);
void writeClipboardPeek(rdr::U32 flags);
void writeClipboardNotify(rdr::U32 flags);
void writeClipboardProvide(rdr::U32 flags, const size_t* lengths,
const rdr::U8* const* data);
void writeStats(const char* str, int len);
// writeFence() sends a new fence request or response to the client.
@ -83,6 +91,9 @@ namespace rfb {
bool writeSetXCursor();
bool writeSetCursorWithAlpha();
// Notifies the client that the cursor pointer was moved by the server.
void writeCursorPos();
// Same for LED state message
bool writeLEDState();
@ -138,6 +149,7 @@ namespace rfb {
void writeSetCursorWithAlphaRect(int width, int height,
int hotspotX, int hotspotY,
const rdr::U8* data);
void writeSetVMwareCursorPositionRect(int hotspotX, int hotspotY);
void writeLEDStateRect(rdr::U8 state);
void writeQEMUKeyEventRect();
@ -153,6 +165,7 @@ namespace rfb {
bool needSetCursor;
bool needSetXCursor;
bool needSetCursorWithAlpha;
bool needCursorPos;
bool needLEDState;
bool needQEMUKeyEvent;

15
common/rfb/Timer.h
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@ -35,6 +35,8 @@ namespace rfb {
dispatch elapsed Timer callbacks and to determine how long to wait in select() for
the next timeout to occur.
For classes that can be derived it's best to use MethodTimer which can call a specific
method on the class, thus avoiding conflicts when subclassing.
*/
struct Timer {
@ -101,6 +103,19 @@ namespace rfb {
static std::list<Timer*> pending;
};
template<class T> class MethodTimer
: public Timer, public Timer::Callback {
public:
MethodTimer(T* obj_, bool (T::*cb_)(Timer*))
: Timer(this), obj(obj_), cb(cb_) {}
virtual bool handleTimeout(Timer* t) { return (obj->*cb)(t); }
private:
T* obj;
bool (T::*cb)(Timer*);
};
};
#endif

121
common/rfb/VNCSConnectionST.cxx
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@ -155,6 +155,17 @@ void VNCSConnectionST::close(const char* reason)
server->lastDisconnectTime = time(0);
}
try {
if (sock->outStream().bufferUsage() > 0) {
sock->cork(false);
sock->outStream().flush();
if (sock->outStream().bufferUsage() > 0)
vlog.error("Failed to flush remaining socket data on close");
}
} catch (rdr::Exception& e) {
vlog.error("Failed to flush remaining socket data on close: %s", e.str());
}
// Just shutdown the socket and mark our state as closing. Eventually the
// calling code will call VNCServerST's removeSocket() method causing us to
// be deleted.
@ -392,7 +403,31 @@ static void keylog(unsigned keysym, const char *client) {
flushKeylog(client);
}
void VNCSConnectionST::serverCutTextOrClose(const char *str, int len)
void VNCSConnectionST::requestClipboardOrClose()
{
try {
if (!(accessRights & AccessCutText)) return;
if (!rfb::Server::acceptCutText) return;
if (state() != RFBSTATE_NORMAL) return;
requestClipboard();
} catch(rdr::Exception& e) {
close(e.str());
}
}
void VNCSConnectionST::announceClipboardOrClose(bool available)
{
try {
if (!(accessRights & AccessCutText)) return;
if (!rfb::Server::sendCutText) return;
if (state() != RFBSTATE_NORMAL) return;
announceClipboard(available);
} catch(rdr::Exception& e) {
close(e.str());
}
}
void VNCSConnectionST::sendClipboardDataOrClose(const char* data)
{
try {
if (!(accessRights & AccessCutText)) return;
@ -402,19 +437,19 @@ void VNCSConnectionST::serverCutTextOrClose(const char *str, int len)
sock->getPeerAddress());
return;
}
int len = strlen(data);
const int origlen = len;
if (rfb::Server::DLP_ClipSendMax && len > rfb::Server::DLP_ClipSendMax)
len = rfb::Server::DLP_ClipSendMax;
cliplog(str, len, origlen, "sent", sock->getPeerAddress());
if (state() == RFBSTATE_NORMAL)
writer()->writeServerCutText(str, len);
cliplog(data, len, origlen, "sent", sock->getPeerAddress());
if (state() != RFBSTATE_NORMAL) return;
sendClipboardData(data, len);
gettimeofday(&lastClipboardOp, NULL);
} catch(rdr::Exception& e) {
close(e.str());
}
}
void VNCSConnectionST::setDesktopNameOrClose(const char *name)
{
try {
@ -506,6 +541,15 @@ void VNCSConnectionST::renderedCursorChange()
}
}
// cursorPositionChange() is called whenever the cursor has changed position by
// the server. If the client supports being informed about these changes then
// it will arrange for the new cursor position to be sent to the client.
void VNCSConnectionST::cursorPositionChange()
{
setCursorPos();
}
// needRenderedCursor() returns true if this client needs the server-side
// rendered cursor. This may be because it does not support local cursor or
// because the current cursor position has not been set by this client.
@ -826,24 +870,6 @@ void VNCSConnectionST::keyEvent(rdr::U32 keysym, rdr::U32 keycode, bool down) {
server->desktop->keyEvent(keysym, keycode, down);
}
void VNCSConnectionST::clientCutText(const char* str, int len)
{
if (!(accessRights & AccessCutText)) return;
if (!rfb::Server::acceptCutText) return;
if (msSince(&lastClipboardOp) < (unsigned) rfb::Server::DLP_ClipDelay) {
vlog.info("DLP: client %s: refused to receive clipboard, too soon",
sock->getPeerAddress());
return;
}
const int origlen = len;
if (rfb::Server::DLP_ClipAcceptMax && len > rfb::Server::DLP_ClipAcceptMax)
len = rfb::Server::DLP_ClipAcceptMax;
cliplog(str, len, origlen, "received", sock->getPeerAddress());
gettimeofday(&lastClipboardOp, NULL);
server->desktop->clientCutText(str, len);
}
void VNCSConnectionST::framebufferUpdateRequest(const Rect& r,bool incremental)
{
Rect safeRect;
@ -863,7 +889,7 @@ void VNCSConnectionST::framebufferUpdateRequest(const Rect& r,bool incremental)
// Just update the requested region.
// Framebuffer update will be sent a bit later, see processMessages().
Region reqRgn(r);
Region reqRgn(safeRect);
if (!incremental || !continuousUpdates)
requested.assign_union(reqRgn);
@ -977,6 +1003,38 @@ void VNCSConnectionST::enableContinuousUpdates(bool enable,
}
}
void VNCSConnectionST::handleClipboardRequest()
{
if (!(accessRights & AccessCutText)) return;
server->handleClipboardRequest(this);
}
void VNCSConnectionST::handleClipboardAnnounce(bool available)
{
if (!(accessRights & AccessCutText)) return;
if (!rfb::Server::acceptCutText) return;
server->handleClipboardAnnounce(this, available);
}
void VNCSConnectionST::handleClipboardData(const char* data, int len)
{
if (!(accessRights & AccessCutText)) return;
if (!rfb::Server::acceptCutText) return;
if (msSince(&lastClipboardOp) < (unsigned) rfb::Server::DLP_ClipDelay) {
vlog.info("DLP: client %s: refused to receive clipboard, too soon",
sock->getPeerAddress());
return;
}
const int origlen = len;
if (rfb::Server::DLP_ClipAcceptMax && len > rfb::Server::DLP_ClipAcceptMax)
len = rfb::Server::DLP_ClipAcceptMax;
cliplog(data, len, origlen, "received", sock->getPeerAddress());
gettimeofday(&lastClipboardOp, NULL);
server->handleClipboardData(this, data, len);
}
// supportsLocalCursor() is called whenever the status of
// cp.supportsLocalCursor has changed. If the client does now support local
// cursor, we make sure that the old server-side rendered cursor is cleaned up
@ -1471,6 +1529,21 @@ void VNCSConnectionST::setCursor()
}
}
// setCursorPos() is called whenever the cursor has changed position by the
// server. If the client supports being informed about these changes then it
// will arrange for the new cursor position to be sent to the client.
void VNCSConnectionST::setCursorPos()
{
if (state() != RFBSTATE_NORMAL)
return;
if (cp.supportsCursorPosition) {
cp.setCursorPos(server->cursorPos);
writer()->writeCursorPos();
}
}
void VNCSConnectionST::setDesktopName(const char *name)
{
cp.setName(name);

14
common/rfb/VNCSConnectionST.h
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@ -75,9 +75,11 @@ namespace rfb {
void screenLayoutChangeOrClose(rdr::U16 reason);
void setCursorOrClose();
void bellOrClose();
void serverCutTextOrClose(const char *str, int len);
void setDesktopNameOrClose(const char *name);
void setLEDStateOrClose(unsigned int state);
void requestClipboardOrClose();
void announceClipboardOrClose(bool available);
void sendClipboardDataOrClose(const char* data);
// checkIdleTimeout() returns the number of milliseconds left until the
// idle timeout expires. If it has expired, the connection is closed and
@ -97,6 +99,11 @@ namespace rfb {
// cursor.
void renderedCursorChange();
// cursorPositionChange() is called whenever the cursor has changed position by
// the server. If the client supports being informed about these changes then
// it will arrange for the new cursor position to be sent to the client.
void cursorPositionChange();
// needRenderedCursor() returns true if this client needs the server-side
// rendered cursor. This may be because it does not support local cursor
// or because the current cursor position has not been set by this client.
@ -170,13 +177,15 @@ namespace rfb {
virtual void setPixelFormat(const PixelFormat& pf);
virtual void pointerEvent(const Point& pos, int buttonMask, const bool skipClick, const bool skipRelease);
virtual void keyEvent(rdr::U32 keysym, rdr::U32 keycode, bool down);
virtual void clientCutText(const char* str, int len);
virtual void framebufferUpdateRequest(const Rect& r, bool incremental);
virtual void setDesktopSize(int fb_width, int fb_height,
const ScreenSet& layout);
virtual void fence(rdr::U32 flags, unsigned len, const char data[]);
virtual void enableContinuousUpdates(bool enable,
int x, int y, int w, int h);
virtual void handleClipboardRequest();
virtual void handleClipboardAnnounce(bool available);
virtual void handleClipboardData(const char* data, int len);
virtual void supportsLocalCursor();
virtual void supportsFence();
virtual void supportsContinuousUpdates();
@ -223,6 +232,7 @@ namespace rfb {
void screenLayoutChange(rdr::U16 reason);
void setCursor();
void setCursorPos();
void setDesktopName(const char *name);
void setLEDState(unsigned int state);
void setSocketTimeouts();

24
common/rfb/VNCServer.h
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@ -52,9 +52,21 @@ namespace rfb {
// getPixelBuffer() returns a pointer to the PixelBuffer object.
virtual PixelBuffer* getPixelBuffer() const = 0;
// serverCutText() tells the server that the cut text has changed. This
// will normally be sent to all clients.
virtual void serverCutText(const char* str, int len) = 0;
// requestClipboard() will result in a request to a client to
// transfer its clipboard data. A call to
// SDesktop::handleClipboardData() will be made once the data is
// available.
virtual void requestClipboard() = 0;
// announceClipboard() informs all clients of changes to the
// clipboard on the server. A client may later request the
// clipboard data via SDesktop::handleClipboardRequest().
virtual void announceClipboard(bool available) = 0;
// sendClipboardData() transfers the clipboard data to a client
// and should be called whenever a client has requested the
// clipboard via SDesktop::handleClipboardRequest().
virtual void sendClipboardData(const char* data) = 0;
// bell() tells the server that it should make all clients make a bell sound.
virtual void bell() = 0;
@ -69,8 +81,10 @@ namespace rfb {
virtual void setCursor(int width, int height, const Point& hotspot,
const rdr::U8* cursorData) = 0;
// setCursorPos() tells the server the current position of the cursor.
virtual void setCursorPos(const Point& p) = 0;
// setCursorPos() tells the server the current position of the cursor, and
// whether the server initiated that change (e.g. through another X11
// client calling XWarpPointer()).
virtual void setCursorPos(const Point& p, bool warped) = 0;
// setName() tells the server what desktop title to supply to clients
virtual void setName(const char* name) = 0;

78
common/rfb/VNCServerST.cxx
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@ -123,8 +123,8 @@ static void parseRegionPart(const bool percents, rdr::U16 &pcdest, int &dest,
VNCServerST::VNCServerST(const char* name_, SDesktop* desktop_)
: blHosts(&blacklist), desktop(desktop_), desktopStarted(false),
blockCounter(0), pb(0), blackedpb(0), ledState(ledUnknown),
name(strDup(name_)), pointerClient(0), comparer(0),
cursor(new Cursor(0, 0, Point(), NULL)),
name(strDup(name_)), pointerClient(0), clipboardClient(0),
comparer(0), cursor(new Cursor(0, 0, Point(), NULL)),
renderedCursorInvalid(false),
queryConnectionHandler(0), keyRemapper(&KeyRemapper::defInstance),
lastConnectionTime(0), disableclients(false),
@ -502,21 +502,51 @@ void VNCServerST::setScreenLayout(const ScreenSet& layout)
}
}
void VNCServerST::bell()
void VNCServerST::requestClipboard()
{
if (clipboardClient == NULL)
return;
clipboardClient->requestClipboard();
}
void VNCServerST::announceClipboard(bool available)
{
std::list<VNCSConnectionST*>::iterator ci, ci_next;
if (available)
clipboardClient = NULL;
clipboardRequestors.clear();
for (ci = clients.begin(); ci != clients.end(); ci = ci_next) {
ci_next = ci; ci_next++;
(*ci)->bellOrClose();
(*ci)->announceClipboard(available);
}
}
void VNCServerST::serverCutText(const char* str, int len)
void VNCServerST::sendClipboardData(const char* data)
{
std::list<VNCSConnectionST*>::iterator ci, ci_next;
if (strchr(data, '\r') != NULL)
throw Exception("Invalid carriage return in clipboard data");
for (ci = clipboardRequestors.begin();
ci != clipboardRequestors.end(); ci = ci_next) {
ci_next = ci; ci_next++;
(*ci)->sendClipboardDataOrClose(data);
}
clipboardRequestors.clear();
}
void VNCServerST::bell()
{
std::list<VNCSConnectionST*>::iterator ci, ci_next;
for (ci = clients.begin(); ci != clients.end(); ci = ci_next) {
ci_next = ci; ci_next++;
(*ci)->serverCutTextOrClose(str, len);
(*ci)->bellOrClose();
}
}
@ -565,14 +595,17 @@ void VNCServerST::setCursor(int width, int height, const Point& newHotspot,
}
}
void VNCServerST::setCursorPos(const Point& pos)
void VNCServerST::setCursorPos(const Point& pos, bool warped)
{
if (!cursorPos.equals(pos)) {
cursorPos = pos;
renderedCursorInvalid = true;
std::list<VNCSConnectionST*>::iterator ci;
for (ci = clients.begin(); ci != clients.end(); ci++)
for (ci = clients.begin(); ci != clients.end(); ci++) {
(*ci)->renderedCursorChange();
if (warped)
(*ci)->cursorPositionChange();
}
}
}
@ -1049,3 +1082,32 @@ bool VNCServerST::getComparerState()
}
return false;
}
void VNCServerST::handleClipboardRequest(VNCSConnectionST* client)
{
clipboardRequestors.push_back(client);
if (clipboardRequestors.size() == 1)
desktop->handleClipboardRequest();
}
void VNCServerST::handleClipboardAnnounce(VNCSConnectionST* client,
bool available)
{
if (available)
clipboardClient = client;
else {
if (client != clipboardClient)
return;
clipboardClient = NULL;
}
desktop->handleClipboardAnnounce(available);
}
void VNCServerST::handleClipboardData(VNCSConnectionST* client,
const char* data, int len)
{
if (client != clipboardClient)
return;
desktop->handleClipboardData(data, len);
}

12
common/rfb/VNCServerST.h
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@ -96,12 +96,14 @@ namespace rfb {
virtual void setPixelBuffer(PixelBuffer* pb);
virtual void setScreenLayout(const ScreenSet& layout);
virtual PixelBuffer* getPixelBuffer() const { if (DLPRegion.enabled && blackedpb) return blackedpb; else return pb; }
virtual void serverCutText(const char* str, int len);
virtual void requestClipboard();
virtual void announceClipboard(bool available);
virtual void sendClipboardData(const char* data);
virtual void add_changed(const Region &region);
virtual void add_copied(const Region &dest, const Point &delta);
virtual void setCursor(int width, int height, const Point& hotspot,
const rdr::U8* data);
virtual void setCursorPos(const Point& p);
virtual void setCursorPos(const Point& p, bool warped);
virtual void setLEDState(unsigned state);
virtual void bell();
@ -189,6 +191,10 @@ namespace rfb {
void setAPIMessager(network::GetAPIMessager *msgr) { apimessager = msgr; }
void handleClipboardRequest(VNCSConnectionST* client);
void handleClipboardAnnounce(VNCSConnectionST* client, bool available);
void handleClipboardData(VNCSConnectionST* client, const char* data, int len);
protected:
friend class VNCSConnectionST;
@ -217,6 +223,8 @@ namespace rfb {
std::list<VNCSConnectionST*> clients;
VNCSConnectionST* pointerClient;
VNCSConnectionST* clipboardClient;
std::list<VNCSConnectionST*> clipboardRequestors;
std::list<network::Socket*> closingSockets;
static EncCache encCache;

2
common/rfb/ZRLEEncoder.cxx
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@ -31,7 +31,7 @@ IntParameter zlibLevel("ZlibLevel","Zlib compression level",-1);
ZRLEEncoder::ZRLEEncoder(SConnection* conn)
: Encoder(conn, encodingZRLE, EncoderPlain, 127),
zos(0,0,zlibLevel), mos(129*1024)
zos(0,zlibLevel), mos(129*1024)
{
zos.setUnderlying(&mos);
}

41
common/rfb/clipboardTypes.h
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@ -0,0 +1,41 @@
/* Copyright 2019 Pierre Ossman for Cendio AB
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#ifndef __RFB_CLIPBOARDTYPES_H__
#define __RFB_CLIPBOARDTYPES_H__
namespace rfb {
// Formats
const unsigned int clipboardUTF8 = 1 << 0;
const unsigned int clipboardRTF = 1 << 1;
const unsigned int clipboardHTML = 1 << 2;
const unsigned int clipboardDIB = 1 << 3;
const unsigned int clipboardFiles = 1 << 4;
const unsigned int clipboardFormatMask = 0x0000ffff;
// Actions
const unsigned int clipboardCaps = 1 << 24;
const unsigned int clipboardRequest = 1 << 25;
const unsigned int clipboardPeek = 1 << 26;
const unsigned int clipboardNotify = 1 << 27;
const unsigned int clipboardProvide = 1 << 28;
const unsigned int clipboardActionMask = 0xff000000;
}
#endif

6
common/rfb/encodings.h
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@ -85,6 +85,12 @@ namespace rfb {
const int pseudoEncodingVideoOutTimeLevel1 = -1986;
const int pseudoEncodingVideoOutTimeLevel100 = -1887;
// VMware-specific
const int pseudoEncodingVMwareCursorPosition = 0x574d5666;
// UltraVNC-specific
const int pseudoEncodingExtendedClipboard = 0xC0A1E5CE;
int encodingNum(const char* name);
const char* encodingName(int num);
}

443
common/rfb/util.cxx
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@ -1,4 +1,5 @@
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
* Copyright 2011-2019 Pierre Ossman for Cendio AB
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -63,6 +64,10 @@ namespace rfb {
delete [] s;
}
void strFree(wchar_t* s) {
delete [] s;
}
bool strSplit(const char* src, const char limiter, char** out1, char** out2, bool fromEnd) {
CharArray out1old, out2old;
@ -107,6 +112,444 @@ namespace rfb {
dest[src ? destlen-1 : 0] = 0;
}
char* convertLF(const char* src, size_t bytes)
{
char* buffer;
size_t sz;
char* out;
const char* in;
size_t in_len;
// Always include space for a NULL
sz = 1;
// Compute output size
in = src;
in_len = bytes;
while ((in_len > 0) && (*in != '\0')) {
if (*in != '\r') {
sz++;
in++;
in_len--;
continue;
}
if ((in_len < 2) || (*(in+1) != '\n'))
sz++;
in++;
in_len--;
}
// Alloc
buffer = new char[sz];
memset(buffer, 0, sz);
// And convert
out = buffer;
in = src;
in_len = bytes;
while ((in_len > 0) && (*in != '\0')) {
if (*in != '\r') {
*out++ = *in++;
in_len--;
continue;
}
if ((in_len < 2) || (*(in+1) != '\n'))
*out++ = '\n';
in++;
in_len--;
}
return buffer;
}
char* convertCRLF(const char* src, size_t bytes)
{
char* buffer;
size_t sz;
char* out;
const char* in;
size_t in_len;
// Always include space for a NULL
sz = 1;
// Compute output size
in = src;
in_len = bytes;
while ((in_len > 0) && (*in != '\0')) {
sz++;
if (*in == '\r') {
if ((in_len < 2) || (*(in+1) != '\n'))
sz++;
} else if (*in == '\n') {
if ((in == src) || (*(in-1) != '\r'))
sz++;
}
in++;
in_len--;
}
// Alloc
buffer = new char[sz];
memset(buffer, 0, sz);
// And convert
out = buffer;
in = src;
in_len = bytes;
while ((in_len > 0) && (*in != '\0')) {
if (*in == '\n') {
if ((in == src) || (*(in-1) != '\r'))
*out++ = '\r';
}
*out = *in;
if (*in == '\r') {
if ((in_len < 2) || (*(in+1) != '\n')) {
out++;
*out = '\n';
}
}
out++;
in++;
in_len--;
}
return buffer;
}
size_t ucs4ToUTF8(unsigned src, char* dst) {
if (src < 0x80) {
*dst++ = src;
*dst++ = '\0';
return 1;
} else if (src < 0x800) {
*dst++ = 0xc0 | (src >> 6);
*dst++ = 0x80 | (src & 0x3f);
*dst++ = '\0';
return 2;
} else if (src < 0x10000) {
*dst++ = 0xe0 | (src >> 12);
*dst++ = 0x80 | ((src >> 6) & 0x3f);
*dst++ = 0x80 | (src & 0x3f);
*dst++ = '\0';
return 3;
} else if (src < 0x110000) {
*dst++ = 0xf0 | (src >> 18);
*dst++ = 0x80 | ((src >> 12) & 0x3f);
*dst++ = 0x80 | ((src >> 6) & 0x3f);
*dst++ = 0x80 | (src & 0x3f);
*dst++ = '\0';
return 4;
} else {
return ucs4ToUTF8(0xfffd, dst);
}
}
size_t utf8ToUCS4(const char* src, size_t max, unsigned* dst) {
size_t count, consumed;
*dst = 0xfffd;
if (max == 0)
return 0;
consumed = 1;
if ((*src & 0x80) == 0) {
*dst = *src;
count = 0;
} else if ((*src & 0xe0) == 0xc0) {
*dst = *src & 0x1f;
count = 1;
} else if ((*src & 0xf0) == 0xe0) {
*dst = *src & 0x0f;
count = 2;
} else if ((*src & 0xf8) == 0xf0) {
*dst = *src & 0x07;
count = 3;
} else {
// Invalid sequence, consume all continuation characters
src++;
max--;
while ((max-- > 0) && ((*src++ & 0xc0) == 0x80))
consumed++;
return consumed;
}
src++;
max--;
while (count--) {
consumed++;
// Invalid or truncated sequence?
if ((max == 0) || ((*src & 0xc0) != 0x80)) {
*dst = 0xfffd;
return consumed;
}
*dst <<= 6;
*dst |= *src & 0x3f;
src++;
max--;
}
return consumed;
}
size_t ucs4ToUTF16(unsigned src, wchar_t* dst) {
if ((src < 0xd800) || ((src >= 0xe000) && (src < 0x10000))) {
*dst++ = src;
*dst++ = L'\0';
return 1;
} else if ((src >= 0x10000) && (src < 0x110000)) {
src -= 0x10000;
*dst++ = 0xd800 | ((src >> 10) & 0x03ff);
*dst++ = 0xdc00 | (src & 0x03ff);
*dst++ = L'\0';
return 2;
} else {
return ucs4ToUTF16(0xfffd, dst);
}
}
size_t utf16ToUCS4(const wchar_t* src, size_t max, unsigned* dst) {
*dst = 0xfffd;
if (max == 0)
return 0;
if ((*src < 0xd800) || (*src >= 0xe000)) {
*dst = *src;
return 1;
}
if (*src & 0x0400) {
size_t consumed;
// Invalid sequence, consume all continuation characters
consumed = 0;
while ((max > 0) && (*src & 0x0400)) {
src++;
max--;
consumed++;
}
return consumed;
}
*dst = *src++;
max--;
// Invalid or truncated sequence?
if ((max == 0) || ((*src & 0xfc00) != 0xdc00)) {
*dst = 0xfffd;
return 1;
}
*dst = 0x10000 + ((*dst & 0x03ff) << 10);
*dst |= *src & 0x3ff;
return 2;
}
char* latin1ToUTF8(const char* src, size_t bytes) {
char* buffer;
size_t sz;
char* out;
const char* in;
size_t in_len;
// Always include space for a NULL
sz = 1;
// Compute output size
in = src;
in_len = bytes;
while ((in_len > 0) && (*in != '\0')) {
char buf[5];
sz += ucs4ToUTF8(*(const unsigned char*)in, buf);
in++;
in_len--;
}
// Alloc
buffer = new char[sz];
memset(buffer, 0, sz);
// And convert
out = buffer;
in = src;
in_len = bytes;
while ((in_len > 0) && (*in != '\0')) {
out += ucs4ToUTF8(*(const unsigned char*)in, out);
in++;
in_len--;
}
return buffer;
}
char* utf8ToLatin1(const char* src, size_t bytes) {
char* buffer;
size_t sz;
char* out;
const char* in;
size_t in_len;
// Always include space for a NULL
sz = 1;
// Compute output size
in = src;
in_len = bytes;
while ((in_len > 0) && (*in != '\0')) {
size_t len;
unsigned ucs;
len = utf8ToUCS4(in, in_len, &ucs);
in += len;
in_len -= len;
sz++;
}
// Alloc
buffer = new char[sz];
memset(buffer, 0, sz);
// And convert
out = buffer;
in = src;
in_len = bytes;
while ((in_len > 0) && (*in != '\0')) {
size_t len;
unsigned ucs;
len = utf8ToUCS4(in, in_len, &ucs);
in += len;
in_len -= len;
if (ucs > 0xff)
*out++ = '?';
else
*out++ = (unsigned char)ucs;
}
return buffer;
}
char* utf16ToUTF8(const wchar_t* src, size_t units)
{
char* buffer;
size_t sz;
char* out;
const wchar_t* in;
size_t in_len;
// Always include space for a NULL
sz = 1;
// Compute output size
in = src;
in_len = units;
while ((in_len > 0) && (*in != '\0')) {
size_t len;
unsigned ucs;
char buf[5];
len = utf16ToUCS4(in, in_len, &ucs);
in += len;
in_len -= len;
sz += ucs4ToUTF8(ucs, buf);
}
// Alloc
buffer = new char[sz];
memset(buffer, 0, sz);
// And convert
out = buffer;
in = src;
in_len = units;
while ((in_len > 0) && (*in != '\0')) {
size_t len;
unsigned ucs;
len = utf16ToUCS4(in, in_len, &ucs);
in += len;
in_len -= len;
out += ucs4ToUTF8(ucs, out);
}
return buffer;
}
wchar_t* utf8ToUTF16(const char* src, size_t bytes)
{
wchar_t* buffer;
size_t sz;
wchar_t* out;
const char* in;
size_t in_len;
// Always include space for a NULL
sz = 1;
// Compute output size
in = src;
in_len = bytes;
while ((in_len > 0) && (*in != '\0')) {
size_t len;
unsigned ucs;
wchar_t buf[3];
len = utf8ToUCS4(in, in_len, &ucs);
in += len;
in_len -= len;
sz += ucs4ToUTF16(ucs, buf);
}
// Alloc
buffer = new wchar_t[sz];
memset(buffer, 0, sz * sizeof(wchar_t));
// And convert
out = buffer;
in = src;
in_len = bytes;
while ((in_len > 0) && (*in != '\0')) {
size_t len;
unsigned ucs;
len = utf8ToUCS4(in, in_len, &ucs);
in += len;
in_len -= len;
out += ucs4ToUTF16(ucs, out);
}
return buffer;
}
unsigned msBetween(const struct timeval *first,
const struct timeval *second)
{

21
common/rfb/util.h
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@ -1,4 +1,5 @@
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
* Copyright 2011-2019 Pierre Ossman for Cendio AB
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -67,6 +68,7 @@ namespace rfb {
char* strDup(const char* s);
void strFree(char* s);
void strFree(wchar_t* s);
// Returns true if split successful. Returns false otherwise.
// ALWAYS *copies* first part of string to out1 buffer.
@ -83,6 +85,25 @@ namespace rfb {
// Copies src to dest, up to specified length-1, and guarantees termination
void strCopy(char* dest, const char* src, int destlen);
// Makes sure line endings are in a certain format
char* convertLF(const char* src, size_t bytes = (size_t)-1);
char* convertCRLF(const char* src, size_t bytes = (size_t)-1);
// Convertions between various Unicode formats. The returned strings are
// always null terminated and must be freed using strFree().
size_t ucs4ToUTF8(unsigned src, char* dst);
size_t utf8ToUCS4(const char* src, size_t max, unsigned* dst);
size_t ucs4ToUTF16(unsigned src, wchar_t* dst);
size_t utf16ToUCS4(const wchar_t* src, size_t max, unsigned* dst);
char* latin1ToUTF8(const char* src, size_t bytes = (size_t)-1);
char* utf8ToLatin1(const char* src, size_t bytes = (size_t)-1);
char* utf16ToUTF8(const wchar_t* src, size_t units = (size_t)-1);
wchar_t* utf8ToUTF16(const char* src, size_t bytes = (size_t)-1);
// HELPER functions for timeout handling

1
kasmweb

@ -0,0 +1 @@
Subproject commit 10a7fcb91d9ca149262e94e39c216fc2b4f02e10

1
kasmweb/.eslintignore
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@ -1 +0,0 @@
**/xtscancodes.js

48
kasmweb/.eslintrc
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@ -1,48 +0,0 @@
{
"env": {
"browser": true,
"es6": true
},
"parserOptions": {
"sourceType": "module"
},
"extends": "eslint:recommended",
"rules": {
// Unsafe or confusing stuff that we forbid
"no-unused-vars": ["error", { "vars": "all", "args": "none", "ignoreRestSiblings": true }],
"no-constant-condition": ["error", { "checkLoops": false }],
"no-var": "error",
"no-useless-constructor": "error",
"object-shorthand": ["error", "methods", { "avoidQuotes": true }],
"prefer-arrow-callback": "error",
"arrow-body-style": ["error", "as-needed", { "requireReturnForObjectLiteral": false } ],
"arrow-parens": ["error", "as-needed", { "requireForBlockBody": true }],
"arrow-spacing": ["error"],
"no-confusing-arrow": ["error", { "allowParens": true }],
// Enforced coding style
"brace-style": ["error", "1tbs", { "allowSingleLine": true }],
"indent": ["error", 4, { "SwitchCase": 1,
"CallExpression": { "arguments": "first" },
"ArrayExpression": "first",
"ObjectExpression": "first",
"ignoreComments": true }],
"comma-spacing": ["error"],
"comma-style": ["error"],
"curly": ["error", "multi-line"],
"func-call-spacing": ["error"],
"func-names": ["error"],
"func-style": ["error", "declaration", { "allowArrowFunctions": true }],
"key-spacing": ["error"],
"keyword-spacing": ["error"],
"no-trailing-spaces": ["error"],
"semi": ["error"],
"space-before-blocks": ["error"],
"space-before-function-paren": ["error", { "anonymous": "always",
"named": "never",
"asyncArrow": "always" }],
"switch-colon-spacing": ["error"],
}
}

14
kasmweb/.gitignore vendored
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@ -1,14 +0,0 @@
*.pyc
*.o
tests/data_*.js
utils/rebind.so
utils/websockify
/node_modules
/build
/lib
recordings
*.swp
*~
noVNC-*.tgz
/dist
index.html

0
kasmweb/.gitmodules vendored
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53
kasmweb/.travis.yml
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@ -1,53 +0,0 @@
language: node_js
sudo: false
cache:
directories:
- node_modules
node_js:
- 6
env:
matrix:
- TEST_BROWSER_NAME=chrome TEST_BROWSER_OS='Windows 10'
# FIXME Skip tests in Linux since Sauce Labs browser versions are ancient.
# - TEST_BROWSER_NAME=chrome TEST_BROWSER_OS='Linux'
- TEST_BROWSER_NAME=chrome TEST_BROWSER_OS='OS X 10.11'
- TEST_BROWSER_NAME=firefox TEST_BROWSER_OS='Windows 10'
# - TEST_BROWSER_NAME=firefox TEST_BROWSER_OS='Linux'
- TEST_BROWSER_NAME=firefox TEST_BROWSER_OS='OS X 10.11'
- TEST_BROWSER_NAME='internet explorer' TEST_BROWSER_OS='Windows 10'
- TEST_BROWSER_NAME='internet explorer' TEST_BROWSER_OS='Windows 7'
- TEST_BROWSER_NAME=microsoftedge TEST_BROWSER_OS='Windows 10'
- TEST_BROWSER_NAME=safari TEST_BROWSER_OS='OS X 10.13'
before_script: npm install -g karma-cli
addons:
sauce_connect:
username: "directxman12"
jwt:
secure: "d3ekMYslpn6R4f0ajtRMt9SUFmNGDiItHpqaXC5T4KI0KMEsxgvEOfJot5PiFFJWg1DSpJZH6oaW2UxGZ3duJLZrXIEd/JePY8a6NtT35BNgiDPgcp+eu2Bu3rhrSNg7/HEsD1ma+JeUTnv18Ai5oMFfCCQJx2J6osIxyl/ZVxA="
stages:
- lint
- test
- name: deploy
if: tag is PRESENT
jobs:
include:
- stage: lint
env:
addons:
before_script:
script: npm run lint
- stage: deploy
env:
addons:
script: skip
before_script: skip
deploy:
provider: npm
email: ossman@cendio.se
api_key:
secure: "Qq2Mi9xQawO2zlAigzshzMu2QMHvu1IaN9l0ZIivE99wHJj7eS5f4miJ9wB+/mWRRgb3E8uj9ZRV24+Oc36drlBTU9sz+lHhH0uFMfAIseceK64wZV9sLAZm472fmPp2xdUeTCCqPaRy7g1XBqiJ0LyZvEFLsRijqcLjPBF+b8w="
on:
tags: true
repo: novnc/noVNC

13
kasmweb/AUTHORS
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@ -1,13 +0,0 @@
maintainers:
- Joel Martin (@kanaka)
- Solly Ross (@directxman12)
- Samuel Mannehed for Cendio AB (@samhed)
- Pierre Ossman for Cendio AB (@CendioOssman)
maintainersEmeritus:
- @astrand
contributors:
# There are a bunch of people that should be here.
# If you want to be on this list, feel free send a PR
# to add yourself.
- jalf <git@jalf.dk>
- NTT corp.

68
kasmweb/LICENSE.txt
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@ -1,68 +0,0 @@
noVNC is Copyright (C) 2018 The noVNC Authors
(./AUTHORS)
The noVNC core library files are licensed under the MPL 2.0 (Mozilla
Public License 2.0). The noVNC core library is composed of the
Javascript code necessary for full noVNC operation. This includes (but
is not limited to):
core/**/*.js
app/*.js
test/playback.js
The HTML, CSS, font and images files that included with the noVNC
source distibution (or repository) are not considered part of the
noVNC core library and are licensed under more permissive licenses.
The intent is to allow easy integration of noVNC into existing web
sites and web applications.
The HTML, CSS, font and image files are licensed as follows:
*.html : 2-Clause BSD license
app/styles/*.css : 2-Clause BSD license
app/styles/Orbitron* : SIL Open Font License 1.1
(Copyright 2009 Matt McInerney)
app/images/ : Creative Commons Attribution-ShareAlike
http://creativecommons.org/licenses/by-sa/3.0/
Some portions of noVNC are copyright to their individual authors.
Please refer to the individual source files and/or to the noVNC commit
history: https://github.com/novnc/noVNC/commits/master
The are several files and projects that have been incorporated into
the noVNC core library. Here is a list of those files and the original
licenses (all MPL 2.0 compatible):
core/base64.js : MPL 2.0
core/des.js : Various BSD style licenses
vendor/pako/ : MIT
vendor/browser-es-module-loader/src/ : MIT
vendor/browser-es-module-loader/dist/ : Various BSD style licenses
vendor/promise.js : MIT
Any other files not mentioned above are typically marked with
a copyright/license header at the top of the file. The default noVNC
license is MPL-2.0.
The following license texts are included:
docs/LICENSE.MPL-2.0
docs/LICENSE.OFL-1.1
docs/LICENSE.BSD-3-Clause (New BSD)
docs/LICENSE.BSD-2-Clause (Simplified BSD / FreeBSD)
vendor/pako/LICENSE (MIT)
Or alternatively the license texts may be found here:
http://www.mozilla.org/MPL/2.0/
http://scripts.sil.org/OFL
http://en.wikipedia.org/wiki/BSD_licenses
https://opensource.org/licenses/MIT

151
kasmweb/README.md
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@ -1,151 +0,0 @@
## noVNC: HTML VNC Client Library and Application
[![Build Status](https://travis-ci.org/novnc/noVNC.svg?branch=master)](https://travis-ci.org/novnc/noVNC)
### Description
noVNC is both a HTML VNC client JavaScript library and an application built on
top of that library. noVNC runs well in any modern browser including mobile
browsers (iOS and Android).
Many companies, projects and products have integrated noVNC including
[OpenStack](http://www.openstack.org),
[OpenNebula](http://opennebula.org/),
[LibVNCServer](http://libvncserver.sourceforge.net), and
[ThinLinc](https://cendio.com/thinlinc). See
[the Projects and Companies wiki page](https://github.com/novnc/noVNC/wiki/Projects-and-companies-using-noVNC)
for a more complete list with additional info and links.
### Table of Contents
- [News/help/contact](#newshelpcontact)
- [Features](#features)
- [Screenshots](#screenshots)
- [Browser Requirements](#browser-requirements)
- [Server Requirements](#server-requirements)
- [Quick Start](#quick-start)
- [Integration and Deployment](#integration-and-deployment)
- [Authors/Contributors](#authorscontributors)
### News/help/contact
The project website is found at [novnc.com](http://novnc.com).
Notable commits, announcements and news are posted to
[@noVNC](http://www.twitter.com/noVNC).
If you are a noVNC developer/integrator/user (or want to be) please join the
[noVNC discussion group](https://groups.google.com/forum/?fromgroups#!forum/novnc).
Bugs and feature requests can be submitted via
[github issues](https://github.com/novnc/noVNC/issues). If you have questions
about using noVNC then please first use the
[discussion group](https://groups.google.com/forum/?fromgroups#!forum/novnc).
We also have a [wiki](https://github.com/novnc/noVNC/wiki/) with lots of
helpful information.
If you are looking for a place to start contributing to noVNC, a good place to
start would be the issues that are marked as
["patchwelcome"](https://github.com/novnc/noVNC/issues?labels=patchwelcome).
Please check our
[contribution guide](https://github.com/novnc/noVNC/wiki/Contributing) though.
If you want to show appreciation for noVNC you could donate to a great non-
profits such as:
[Compassion International](http://www.compassion.com/),
[SIL](http://www.sil.org),
[Habitat for Humanity](http://www.habitat.org),
[Electronic Frontier Foundation](https://www.eff.org/),
[Against Malaria Foundation](http://www.againstmalaria.com/),
[Nothing But Nets](http://www.nothingbutnets.net/), etc.
Please tweet [@noVNC](http://www.twitter.com/noVNC) if you do.
### Features
* Supports all modern browsers including mobile (iOS, Android)
* Supported VNC encodings: raw, copyrect, rre, hextile, tight, tightPNG
* Supports scaling, clipping and resizing the desktop
* Local cursor rendering
* Clipboard copy/paste
* Licensed mainly under the [MPL 2.0](http://www.mozilla.org/MPL/2.0/), see
[the license document](LICENSE.txt) for details
### Screenshots
Running in Firefox before and after connecting:
<img src="http://novnc.com/img/noVNC-1-login.png" width=400>&nbsp;
<img src="http://novnc.com/img/noVNC-3-connected.png" width=400>
See more screenshots
[here](http://novnc.com/screenshots.html).
### Browser Requirements
noVNC uses many modern web technologies so a formal requirement list is
not available. However these are the minimum versions we are currently
aware of:
* Chrome 49, Firefox 44, Safari 10, Opera 36, IE 11, Edge 12
### Server Requirements
noVNC follows the standard VNC protocol, but unlike other VNC clients it does
require WebSockets support. Many servers include support (e.g.
[x11vnc/libvncserver](http://libvncserver.sourceforge.net/),
[QEMU](http://www.qemu.org/), and
[MobileVNC](http://www.smartlab.at/mobilevnc/)), but for the others you need to
use a WebSockets to TCP socket proxy. noVNC has a sister project
[websockify](https://github.com/novnc/websockify) that provides a simple such
proxy.
### Quick Start
* Use the launch script to automatically download and start websockify, which
includes a mini-webserver and the WebSockets proxy. The `--vnc` option is
used to specify the location of a running VNC server:
`./utils/launch.sh --vnc localhost:5901`
* Point your browser to the cut-and-paste URL that is output by the launch
script. Hit the Connect button, enter a password if the VNC server has one
configured, and enjoy!
### Integration and Deployment
Please see our other documents for how to integrate noVNC in your own software,
or deploying the noVNC application in production environments:
* [Embedding](docs/EMBEDDING.md) - For the noVNC application
* [Library](docs/LIBRARY.md) - For the noVNC JavaScript library
### Authors/Contributors
See [AUTHORS](AUTHORS) for a (full-ish) list of authors. If you're not on
that list and you think you should be, feel free to send a PR to fix that.
* Core team:
* [Joel Martin](https://github.com/kanaka)
* [Samuel Mannehed](https://github.com/samhed) (Cendio)
* [Peter Åstrand](https://github.com/astrand) (Cendio)
* [Solly Ross](https://github.com/DirectXMan12) (Red Hat / OpenStack)
* [Pierre Ossman](https://github.com/CendioOssman) (Cendio)
* Notable contributions:
* UI and Icons : Pierre Ossman, Chris Gordon
* Original Logo : Michael Sersen
* tight encoding : Michael Tinglof (Mercuri.ca)
* Included libraries:
* base64 : Martijn Pieters (Digital Creations 2), Samuel Sieb (sieb.net)
* DES : Dave Zimmerman (Widget Workshop), Jef Poskanzer (ACME Labs)
* Pako : Vitaly Puzrin (https://github.com/nodeca/pako)
Do you want to be on this list? Check out our
[contribution guide](https://github.com/novnc/noVNC/wiki/Contributing) and
start hacking!

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// NB: this should *not* be included as a module until we have
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// Don't return true since this would prevent the error
// from being printed to the browser console.
return false;
}
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