1793 lines
48 KiB
C
1793 lines
48 KiB
C
/**
|
|
* FreeRDP: A Remote Desktop Protocol Implementation
|
|
* X11 Clipboard Redirection
|
|
*
|
|
* Copyright 2010-2011 Vic Lee
|
|
* Copyright 2015 Thincast Technologies GmbH
|
|
* Copyright 2015 DI (FH) Martin Haimberger <martin.haimberger@thincast.com>
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#include <X11/Xlib.h>
|
|
#include <X11/Xatom.h>
|
|
|
|
#ifdef WITH_XFIXES
|
|
#include <X11/extensions/Xfixes.h>
|
|
#endif
|
|
|
|
#include <winpr/crt.h>
|
|
#include <winpr/image.h>
|
|
#include <winpr/stream.h>
|
|
#include <winpr/clipboard.h>
|
|
|
|
#include <freerdp/log.h>
|
|
#include <freerdp/client/cliprdr.h>
|
|
#include <freerdp/channels/channels.h>
|
|
#include <freerdp/channels/cliprdr.h>
|
|
|
|
#include "xf_cliprdr.h"
|
|
|
|
#define TAG CLIENT_TAG("x11")
|
|
|
|
#define MAX_CLIPBOARD_FORMATS 255
|
|
|
|
struct xf_cliprdr_format
|
|
{
|
|
Atom atom;
|
|
UINT32 formatId;
|
|
char* formatName;
|
|
};
|
|
typedef struct xf_cliprdr_format xfCliprdrFormat;
|
|
|
|
struct xf_clipboard
|
|
{
|
|
xfContext* xfc;
|
|
rdpChannels* channels;
|
|
CliprdrClientContext* context;
|
|
|
|
wClipboard* system;
|
|
wClipboardDelegate* delegate;
|
|
|
|
Window root_window;
|
|
Atom clipboard_atom;
|
|
Atom property_atom;
|
|
|
|
Atom raw_transfer_atom;
|
|
Atom raw_format_list_atom;
|
|
|
|
int numClientFormats;
|
|
xfCliprdrFormat clientFormats[20];
|
|
|
|
int numServerFormats;
|
|
CLIPRDR_FORMAT* serverFormats;
|
|
|
|
int numTargets;
|
|
Atom targets[20];
|
|
|
|
int requestedFormatId;
|
|
|
|
BYTE* data;
|
|
BYTE* data_raw;
|
|
BOOL data_raw_format;
|
|
UINT32 data_format_id;
|
|
const char* data_format_name;
|
|
int data_length;
|
|
int data_raw_length;
|
|
XEvent* respond;
|
|
|
|
Window owner;
|
|
BOOL sync;
|
|
|
|
/* INCR mechanism */
|
|
Atom incr_atom;
|
|
BOOL incr_starts;
|
|
BYTE* incr_data;
|
|
int incr_data_length;
|
|
|
|
/* XFixes extension */
|
|
int xfixes_event_base;
|
|
int xfixes_error_base;
|
|
BOOL xfixes_supported;
|
|
|
|
/* File clipping */
|
|
BOOL streams_supported;
|
|
BOOL file_formats_registered;
|
|
};
|
|
|
|
static UINT xf_cliprdr_send_client_format_list(xfClipboard* clipboard);
|
|
|
|
static void xf_cliprdr_check_owner(xfClipboard* clipboard)
|
|
{
|
|
Window owner;
|
|
xfContext* xfc = clipboard->xfc;
|
|
|
|
if (clipboard->sync)
|
|
{
|
|
owner = XGetSelectionOwner(xfc->display, clipboard->clipboard_atom);
|
|
|
|
if (clipboard->owner != owner)
|
|
{
|
|
clipboard->owner = owner;
|
|
xf_cliprdr_send_client_format_list(clipboard);
|
|
}
|
|
}
|
|
}
|
|
|
|
static BOOL xf_cliprdr_is_self_owned(xfClipboard* clipboard)
|
|
{
|
|
xfContext* xfc = clipboard->xfc;
|
|
return XGetSelectionOwner(xfc->display,
|
|
clipboard->clipboard_atom) == xfc->drawable;
|
|
}
|
|
|
|
static void xf_cliprdr_set_raw_transfer_enabled(xfClipboard* clipboard,
|
|
BOOL enabled)
|
|
{
|
|
UINT32 data = enabled;
|
|
xfContext* xfc = clipboard->xfc;
|
|
XChangeProperty(xfc->display, xfc->drawable, clipboard->raw_transfer_atom,
|
|
XA_INTEGER, 32, PropModeReplace, (BYTE*) &data, 1);
|
|
}
|
|
|
|
static BOOL xf_cliprdr_is_raw_transfer_available(xfClipboard* clipboard)
|
|
{
|
|
Atom type;
|
|
int format;
|
|
int result = 0;
|
|
unsigned long length;
|
|
unsigned long bytes_left;
|
|
UINT32* data = NULL;
|
|
UINT32 is_enabled = 0;
|
|
Window owner = None;
|
|
xfContext* xfc = clipboard->xfc;
|
|
owner = XGetSelectionOwner(xfc->display, clipboard->clipboard_atom);
|
|
|
|
if (owner != None)
|
|
{
|
|
result = XGetWindowProperty(xfc->display, owner,
|
|
clipboard->raw_transfer_atom, 0, 4, 0, XA_INTEGER,
|
|
&type, &format, &length, &bytes_left, (BYTE**) &data);
|
|
}
|
|
|
|
if (data)
|
|
{
|
|
is_enabled = *data;
|
|
XFree(data);
|
|
}
|
|
|
|
if ((owner == None) || (owner == xfc->drawable))
|
|
return FALSE;
|
|
|
|
if (result != Success)
|
|
return FALSE;
|
|
|
|
return is_enabled ? TRUE : FALSE;
|
|
}
|
|
|
|
static BOOL xf_cliprdr_formats_equal(const CLIPRDR_FORMAT* server,
|
|
const xfCliprdrFormat* client)
|
|
{
|
|
if (server->formatName && client->formatName)
|
|
{
|
|
/* The server may be using short format names while we store them in full form. */
|
|
return (0 == strncmp(server->formatName, client->formatName,
|
|
strlen(server->formatName)));
|
|
}
|
|
|
|
if (!server->formatName && !client->formatName)
|
|
{
|
|
return (server->formatId == client->formatId);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static xfCliprdrFormat* xf_cliprdr_get_client_format_by_id(
|
|
xfClipboard* clipboard, UINT32 formatId)
|
|
{
|
|
int index;
|
|
xfCliprdrFormat* format;
|
|
|
|
for (index = 0; index < clipboard->numClientFormats; index++)
|
|
{
|
|
format = &(clipboard->clientFormats[index]);
|
|
|
|
if (format->formatId == formatId)
|
|
return format;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static xfCliprdrFormat* xf_cliprdr_get_client_format_by_atom(
|
|
xfClipboard* clipboard, Atom atom)
|
|
{
|
|
int i;
|
|
xfCliprdrFormat* format;
|
|
|
|
for (i = 0; i < clipboard->numClientFormats; i++)
|
|
{
|
|
format = &(clipboard->clientFormats[i]);
|
|
|
|
if (format->atom == atom)
|
|
return format;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static CLIPRDR_FORMAT* xf_cliprdr_get_server_format_by_atom(
|
|
xfClipboard* clipboard, Atom atom)
|
|
{
|
|
int i, j;
|
|
xfCliprdrFormat* client_format;
|
|
CLIPRDR_FORMAT* server_format;
|
|
|
|
for (i = 0; i < clipboard->numClientFormats; i++)
|
|
{
|
|
client_format = &(clipboard->clientFormats[i]);
|
|
|
|
if (client_format->atom == atom)
|
|
{
|
|
for (j = 0; j < clipboard->numServerFormats; j++)
|
|
{
|
|
server_format = &(clipboard->serverFormats[j]);
|
|
|
|
if (xf_cliprdr_formats_equal(server_format, client_format))
|
|
return server_format;
|
|
}
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT xf_cliprdr_send_data_request(xfClipboard* clipboard,
|
|
UINT32 formatId)
|
|
{
|
|
CLIPRDR_FORMAT_DATA_REQUEST request = { 0 };
|
|
request.requestedFormatId = formatId;
|
|
return clipboard->context->ClientFormatDataRequest(clipboard->context,
|
|
&request);
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT xf_cliprdr_send_data_response(xfClipboard* clipboard, BYTE* data,
|
|
int size)
|
|
{
|
|
CLIPRDR_FORMAT_DATA_RESPONSE response = { 0 };
|
|
response.msgFlags = (data) ? CB_RESPONSE_OK : CB_RESPONSE_FAIL;
|
|
response.dataLen = size;
|
|
response.requestedFormatData = data;
|
|
return clipboard->context->ClientFormatDataResponse(clipboard->context,
|
|
&response);
|
|
}
|
|
|
|
static wStream* xf_cliprdr_serialize_server_format_list(xfClipboard* clipboard)
|
|
{
|
|
UINT32 i;
|
|
UINT32 formatCount;
|
|
wStream* s = NULL;
|
|
|
|
/* Typical MS Word format list is about 80 bytes long. */
|
|
if (!(s = Stream_New(NULL, 128)))
|
|
{
|
|
WLog_ERR(TAG, "failed to allocate serialized format list");
|
|
goto error;
|
|
}
|
|
|
|
/* If present, the last format is always synthetic CF_RAW. Do not include it. */
|
|
formatCount = (clipboard->numServerFormats > 0) ? clipboard->numServerFormats -
|
|
1 : 0;
|
|
Stream_Write_UINT32(s, formatCount);
|
|
|
|
for (i = 0; i < formatCount; i++)
|
|
{
|
|
CLIPRDR_FORMAT* format = &clipboard->serverFormats[i];
|
|
size_t name_length = format->formatName ? strlen(format->formatName) : 0;
|
|
|
|
if (!Stream_EnsureRemainingCapacity(s, sizeof(UINT32) + name_length + 1))
|
|
{
|
|
WLog_ERR(TAG, "failed to expand serialized format list");
|
|
goto error;
|
|
}
|
|
|
|
Stream_Write_UINT32(s, format->formatId);
|
|
|
|
if (format->formatName)
|
|
Stream_Write(s, format->formatName, name_length);
|
|
|
|
Stream_Write_UINT8(s, '\0');
|
|
}
|
|
|
|
Stream_SealLength(s);
|
|
return s;
|
|
error:
|
|
Stream_Free(s, TRUE);
|
|
return NULL;
|
|
}
|
|
|
|
static CLIPRDR_FORMAT* xf_cliprdr_parse_server_format_list(BYTE* data,
|
|
size_t length, UINT32* numFormats)
|
|
{
|
|
UINT32 i;
|
|
wStream* s = NULL;
|
|
CLIPRDR_FORMAT* formats = NULL;
|
|
|
|
if (!(s = Stream_New(data, length)))
|
|
{
|
|
WLog_ERR(TAG, "failed to allocate stream for parsing serialized format list");
|
|
goto error;
|
|
}
|
|
|
|
if (Stream_GetRemainingLength(s) < sizeof(UINT32))
|
|
{
|
|
WLog_ERR(TAG, "too short serialized format list");
|
|
goto error;
|
|
}
|
|
|
|
Stream_Read_UINT32(s, *numFormats);
|
|
|
|
if (*numFormats > MAX_CLIPBOARD_FORMATS)
|
|
{
|
|
WLog_ERR(TAG, "unexpectedly large number of formats: %"PRIu32"", *numFormats);
|
|
goto error;
|
|
}
|
|
|
|
if (!(formats = (CLIPRDR_FORMAT*) calloc(*numFormats, sizeof(CLIPRDR_FORMAT))))
|
|
{
|
|
WLog_ERR(TAG, "failed to allocate format list");
|
|
goto error;
|
|
}
|
|
|
|
for (i = 0; i < *numFormats; i++)
|
|
{
|
|
const char* formatName = NULL;
|
|
size_t formatNameLength = 0;
|
|
|
|
if (Stream_GetRemainingLength(s) < sizeof(UINT32))
|
|
{
|
|
WLog_ERR(TAG, "unexpected end of serialized format list");
|
|
goto error;
|
|
}
|
|
|
|
Stream_Read_UINT32(s, formats[i].formatId);
|
|
formatName = (const char*) Stream_Pointer(s);
|
|
formatNameLength = strnlen(formatName, Stream_GetRemainingLength(s));
|
|
|
|
if (formatNameLength == Stream_GetRemainingLength(s))
|
|
{
|
|
WLog_ERR(TAG, "missing terminating null byte, %"PRIuz" bytes left to read",
|
|
formatNameLength);
|
|
goto error;
|
|
}
|
|
|
|
formats[i].formatName = strndup(formatName, formatNameLength);
|
|
Stream_Seek(s, formatNameLength + 1);
|
|
}
|
|
|
|
Stream_Free(s, FALSE);
|
|
return formats;
|
|
error:
|
|
Stream_Free(s, FALSE);
|
|
free(formats);
|
|
*numFormats = 0;
|
|
return NULL;
|
|
}
|
|
|
|
static void xf_cliprdr_free_formats(CLIPRDR_FORMAT* formats, UINT32 numFormats)
|
|
{
|
|
UINT32 i;
|
|
|
|
for (i = 0; i < numFormats; i++)
|
|
{
|
|
free(formats[i].formatName);
|
|
}
|
|
|
|
free(formats);
|
|
}
|
|
|
|
static CLIPRDR_FORMAT* xf_cliprdr_get_raw_server_formats(xfClipboard* clipboard,
|
|
UINT32* numFormats)
|
|
{
|
|
Atom type = None;
|
|
int format = 0;
|
|
unsigned long length = 0;
|
|
unsigned long remaining;
|
|
BYTE* data = NULL;
|
|
CLIPRDR_FORMAT* formats = NULL;
|
|
xfContext* xfc = clipboard->xfc;
|
|
*numFormats = 0;
|
|
XGetWindowProperty(xfc->display, clipboard->owner,
|
|
clipboard->raw_format_list_atom,
|
|
0, 4096, False, clipboard->raw_format_list_atom, &type, &format,
|
|
&length, &remaining, &data);
|
|
|
|
if (data && length > 0 && format == 8
|
|
&& type == clipboard->raw_format_list_atom)
|
|
{
|
|
formats = xf_cliprdr_parse_server_format_list(data, length, numFormats);
|
|
}
|
|
else
|
|
{
|
|
WLog_ERR(TAG,
|
|
"failed to retrieve raw format list: data=%p, length=%lu, format=%d, type=%lu (expected=%lu)",
|
|
(void*) data, length, format, (unsigned long) type,
|
|
(unsigned long) clipboard->raw_format_list_atom);
|
|
}
|
|
|
|
if (data)
|
|
XFree(data);
|
|
|
|
return formats;
|
|
}
|
|
|
|
static CLIPRDR_FORMAT* xf_cliprdr_get_formats_from_targets(
|
|
xfClipboard* clipboard, UINT32* numFormats)
|
|
{
|
|
unsigned long i;
|
|
Atom atom;
|
|
BYTE* data = NULL;
|
|
int format_property;
|
|
unsigned long length;
|
|
unsigned long bytes_left;
|
|
xfCliprdrFormat* format = NULL;
|
|
CLIPRDR_FORMAT* formats = NULL;
|
|
xfContext* xfc = clipboard->xfc;
|
|
*numFormats = 0;
|
|
XGetWindowProperty(xfc->display, xfc->drawable, clipboard->property_atom,
|
|
0, 200, 0, XA_ATOM, &atom, &format_property, &length, &bytes_left, &data);
|
|
|
|
if (length > 0)
|
|
{
|
|
if (!data)
|
|
{
|
|
WLog_ERR(TAG, "XGetWindowProperty set length = %lu but data is NULL", length);
|
|
goto out;
|
|
}
|
|
|
|
if (!(formats = (CLIPRDR_FORMAT*) calloc(length, sizeof(CLIPRDR_FORMAT))))
|
|
{
|
|
WLog_ERR(TAG, "failed to allocate %lu CLIPRDR_FORMAT structs", length);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < length; i++)
|
|
{
|
|
atom = ((Atom*) data)[i];
|
|
format = xf_cliprdr_get_client_format_by_atom(clipboard, atom);
|
|
|
|
if (format)
|
|
{
|
|
formats[*numFormats].formatId = format->formatId;
|
|
formats[*numFormats].formatName = _strdup(format->formatName);
|
|
*numFormats += 1;
|
|
}
|
|
}
|
|
|
|
out:
|
|
|
|
if (data)
|
|
XFree(data);
|
|
|
|
return formats;
|
|
}
|
|
|
|
static CLIPRDR_FORMAT* xf_cliprdr_get_client_formats(xfClipboard* clipboard,
|
|
UINT32* numFormats)
|
|
{
|
|
CLIPRDR_FORMAT* formats = NULL;
|
|
*numFormats = 0;
|
|
|
|
if (xf_cliprdr_is_raw_transfer_available(clipboard))
|
|
{
|
|
formats = xf_cliprdr_get_raw_server_formats(clipboard, numFormats);
|
|
}
|
|
|
|
if (*numFormats == 0)
|
|
{
|
|
xf_cliprdr_free_formats(formats, *numFormats);
|
|
formats = xf_cliprdr_get_formats_from_targets(clipboard, numFormats);
|
|
}
|
|
|
|
return formats;
|
|
}
|
|
|
|
static void xf_cliprdr_provide_server_format_list(xfClipboard* clipboard)
|
|
{
|
|
wStream* formats = NULL;
|
|
xfContext* xfc = clipboard->xfc;
|
|
formats = xf_cliprdr_serialize_server_format_list(clipboard);
|
|
|
|
if (formats)
|
|
{
|
|
XChangeProperty(xfc->display, xfc->drawable, clipboard->raw_format_list_atom,
|
|
clipboard->raw_format_list_atom, 8, PropModeReplace,
|
|
Stream_Buffer(formats), Stream_Length(formats));
|
|
}
|
|
else
|
|
{
|
|
XDeleteProperty(xfc->display, xfc->drawable, clipboard->raw_format_list_atom);
|
|
}
|
|
|
|
Stream_Free(formats, TRUE);
|
|
}
|
|
|
|
static void xf_cliprdr_get_requested_targets(xfClipboard* clipboard)
|
|
{
|
|
UINT32 numFormats = 0;
|
|
CLIPRDR_FORMAT* formats = NULL;
|
|
CLIPRDR_FORMAT_LIST formatList = { 0 };
|
|
formats = xf_cliprdr_get_client_formats(clipboard, &numFormats);
|
|
formatList.msgFlags = CB_RESPONSE_OK;
|
|
formatList.numFormats = numFormats;
|
|
formatList.formats = formats;
|
|
clipboard->context->ClientFormatList(clipboard->context, &formatList);
|
|
xf_cliprdr_free_formats(formats, numFormats);
|
|
}
|
|
|
|
static void xf_cliprdr_process_requested_data(xfClipboard* clipboard,
|
|
BOOL hasData, BYTE* data, int size)
|
|
{
|
|
BOOL bSuccess;
|
|
UINT32 SrcSize;
|
|
UINT32 DstSize;
|
|
UINT32 srcFormatId;
|
|
UINT32 dstFormatId;
|
|
BYTE* pDstData = NULL;
|
|
xfCliprdrFormat* format;
|
|
|
|
if (clipboard->incr_starts && hasData)
|
|
return;
|
|
|
|
format = xf_cliprdr_get_client_format_by_id(clipboard,
|
|
clipboard->requestedFormatId);
|
|
|
|
if (!hasData || !data || !format)
|
|
{
|
|
xf_cliprdr_send_data_response(clipboard, NULL, 0);
|
|
return;
|
|
}
|
|
|
|
srcFormatId = 0;
|
|
|
|
switch (format->formatId)
|
|
{
|
|
case CF_RAW:
|
|
srcFormatId = CF_RAW;
|
|
break;
|
|
|
|
case CF_TEXT:
|
|
case CF_OEMTEXT:
|
|
case CF_UNICODETEXT:
|
|
size = strlen((char*) data) + 1;
|
|
srcFormatId = ClipboardGetFormatId(clipboard->system, "UTF8_STRING");
|
|
break;
|
|
|
|
case CF_DIB:
|
|
srcFormatId = ClipboardGetFormatId(clipboard->system, "image/bmp");
|
|
break;
|
|
|
|
case CB_FORMAT_HTML:
|
|
srcFormatId = ClipboardGetFormatId(clipboard->system, "text/html");
|
|
break;
|
|
|
|
case CB_FORMAT_TEXTURILIST:
|
|
srcFormatId = ClipboardGetFormatId(clipboard->system, "text/uri-list");
|
|
break;
|
|
}
|
|
|
|
SrcSize = (UINT32) size;
|
|
bSuccess = ClipboardSetData(clipboard->system, srcFormatId, data, SrcSize);
|
|
|
|
if (format->formatName)
|
|
dstFormatId = ClipboardGetFormatId(clipboard->system, format->formatName);
|
|
else
|
|
dstFormatId = format->formatId;
|
|
|
|
if (bSuccess)
|
|
{
|
|
DstSize = 0;
|
|
pDstData = (BYTE*) ClipboardGetData(clipboard->system, dstFormatId, &DstSize);
|
|
}
|
|
|
|
if (!pDstData)
|
|
{
|
|
xf_cliprdr_send_data_response(clipboard, NULL, 0);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* File lists require a bit of postprocessing to convert them from WinPR's FILDESCRIPTOR
|
|
* format to CLIPRDR_FILELIST expected by the server.
|
|
*
|
|
* We check for "FileGroupDescriptorW" format being registered (i.e., nonzero) in order
|
|
* to not process CF_RAW as a file list in case WinPR does not support file transfers.
|
|
*/
|
|
if (dstFormatId &&
|
|
(dstFormatId == ClipboardGetFormatId(clipboard->system, "FileGroupDescriptorW")))
|
|
{
|
|
UINT error = NO_ERROR;
|
|
FILEDESCRIPTOR* file_array = (FILEDESCRIPTOR*) pDstData;
|
|
UINT32 file_count = DstSize / sizeof(FILEDESCRIPTOR);
|
|
pDstData = NULL;
|
|
DstSize = 0;
|
|
error = cliprdr_serialize_file_list(file_array, file_count, &pDstData, &DstSize);
|
|
|
|
if (error)
|
|
WLog_ERR(TAG, "failed to serialize CLIPRDR_FILELIST: 0x%08X", error);
|
|
|
|
free(file_array);
|
|
}
|
|
|
|
xf_cliprdr_send_data_response(clipboard, pDstData, (int) DstSize);
|
|
free(pDstData);
|
|
}
|
|
|
|
static BOOL xf_cliprdr_get_requested_data(xfClipboard* clipboard, Atom target)
|
|
{
|
|
Atom type;
|
|
BYTE* data = NULL;
|
|
BOOL has_data = FALSE;
|
|
int format_property;
|
|
unsigned long dummy;
|
|
unsigned long length;
|
|
unsigned long bytes_left;
|
|
xfCliprdrFormat* format;
|
|
xfContext* xfc = clipboard->xfc;
|
|
format = xf_cliprdr_get_client_format_by_id(clipboard,
|
|
clipboard->requestedFormatId);
|
|
|
|
if (!format || (format->atom != target))
|
|
{
|
|
xf_cliprdr_send_data_response(clipboard, NULL, 0);
|
|
return FALSE;
|
|
}
|
|
|
|
XGetWindowProperty(xfc->display, xfc->drawable,
|
|
clipboard->property_atom, 0, 0, 0, target,
|
|
&type, &format_property, &length, &bytes_left, &data);
|
|
|
|
if (data)
|
|
{
|
|
XFree(data);
|
|
data = NULL;
|
|
}
|
|
|
|
if (bytes_left <= 0 && !clipboard->incr_starts)
|
|
{
|
|
}
|
|
else if (type == clipboard->incr_atom)
|
|
{
|
|
clipboard->incr_starts = TRUE;
|
|
|
|
if (clipboard->incr_data)
|
|
{
|
|
free(clipboard->incr_data);
|
|
clipboard->incr_data = NULL;
|
|
}
|
|
|
|
clipboard->incr_data_length = 0;
|
|
has_data = TRUE; /* data will be followed in PropertyNotify event */
|
|
}
|
|
else
|
|
{
|
|
if (bytes_left <= 0)
|
|
{
|
|
/* INCR finish */
|
|
data = clipboard->incr_data;
|
|
clipboard->incr_data = NULL;
|
|
bytes_left = clipboard->incr_data_length;
|
|
clipboard->incr_data_length = 0;
|
|
clipboard->incr_starts = 0;
|
|
has_data = TRUE;
|
|
}
|
|
else if (XGetWindowProperty(xfc->display, xfc->drawable,
|
|
clipboard->property_atom, 0, bytes_left, 0, target,
|
|
&type, &format_property, &length, &dummy, &data) == Success)
|
|
{
|
|
if (clipboard->incr_starts)
|
|
{
|
|
BYTE* new_data;
|
|
bytes_left = length * format_property / 8;
|
|
new_data = (BYTE*) realloc(clipboard->incr_data,
|
|
clipboard->incr_data_length + bytes_left);
|
|
|
|
if (!new_data)
|
|
return FALSE;
|
|
|
|
clipboard->incr_data = new_data;
|
|
CopyMemory(clipboard->incr_data + clipboard->incr_data_length, data,
|
|
bytes_left);
|
|
clipboard->incr_data_length += bytes_left;
|
|
XFree(data);
|
|
data = NULL;
|
|
}
|
|
|
|
has_data = TRUE;
|
|
}
|
|
else
|
|
{
|
|
}
|
|
}
|
|
|
|
XDeleteProperty(xfc->display, xfc->drawable, clipboard->property_atom);
|
|
xf_cliprdr_process_requested_data(clipboard, has_data, data, (int) bytes_left);
|
|
|
|
if (data)
|
|
XFree(data);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void xf_cliprdr_append_target(xfClipboard* clipboard, Atom target)
|
|
{
|
|
int i;
|
|
|
|
if (clipboard->numTargets < 0)
|
|
return;
|
|
|
|
if ((size_t)clipboard->numTargets >= ARRAYSIZE(clipboard->targets))
|
|
return;
|
|
|
|
for (i = 0; i < clipboard->numTargets; i++)
|
|
{
|
|
if (clipboard->targets[i] == target)
|
|
return;
|
|
}
|
|
|
|
clipboard->targets[clipboard->numTargets++] = target;
|
|
}
|
|
|
|
static void xf_cliprdr_provide_targets(xfClipboard* clipboard, XEvent* respond)
|
|
{
|
|
xfContext* xfc = clipboard->xfc;
|
|
|
|
if (respond->xselection.property != None)
|
|
{
|
|
XChangeProperty(xfc->display, respond->xselection.requestor,
|
|
respond->xselection.property, XA_ATOM, 32, PropModeReplace,
|
|
(BYTE*) clipboard->targets, clipboard->numTargets);
|
|
}
|
|
}
|
|
|
|
static void xf_cliprdr_provide_data(xfClipboard* clipboard, XEvent* respond,
|
|
BYTE* data, UINT32 size)
|
|
{
|
|
xfContext* xfc = clipboard->xfc;
|
|
|
|
if (respond->xselection.property != None)
|
|
{
|
|
XChangeProperty(xfc->display, respond->xselection.requestor,
|
|
respond->xselection.property, respond->xselection.target,
|
|
8, PropModeReplace, data, size);
|
|
}
|
|
}
|
|
|
|
static BOOL xf_cliprdr_process_selection_notify(xfClipboard* clipboard,
|
|
XEvent* xevent)
|
|
{
|
|
if (xevent->xselection.target == clipboard->targets[1])
|
|
{
|
|
if (xevent->xselection.property == None)
|
|
{
|
|
xf_cliprdr_send_client_format_list(clipboard);
|
|
}
|
|
else
|
|
{
|
|
xf_cliprdr_get_requested_targets(clipboard);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
else
|
|
{
|
|
return xf_cliprdr_get_requested_data(clipboard, xevent->xselection.target);
|
|
}
|
|
}
|
|
|
|
static void xf_cliprdr_clear_cached_data(xfClipboard* clipboard)
|
|
{
|
|
if (clipboard->data)
|
|
{
|
|
free(clipboard->data);
|
|
clipboard->data = NULL;
|
|
}
|
|
|
|
clipboard->data_length = 0;
|
|
|
|
if (clipboard->data_raw)
|
|
{
|
|
free(clipboard->data_raw);
|
|
clipboard->data_raw = NULL;
|
|
}
|
|
|
|
clipboard->data_raw_length = 0;
|
|
}
|
|
|
|
static BOOL xf_cliprdr_process_selection_request(xfClipboard* clipboard,
|
|
XEvent* xevent)
|
|
{
|
|
int fmt;
|
|
Atom type;
|
|
UINT32 formatId;
|
|
const char* formatName;
|
|
XEvent* respond;
|
|
BYTE* data = NULL;
|
|
BOOL delayRespond;
|
|
BOOL rawTransfer;
|
|
BOOL matchingFormat;
|
|
unsigned long length;
|
|
unsigned long bytes_left;
|
|
CLIPRDR_FORMAT* format;
|
|
xfContext* xfc = clipboard->xfc;
|
|
|
|
if (xevent->xselectionrequest.owner != xfc->drawable)
|
|
return FALSE;
|
|
|
|
delayRespond = FALSE;
|
|
|
|
if (!(respond = (XEvent*) calloc(1, sizeof(XEvent))))
|
|
{
|
|
WLog_ERR(TAG, "failed to allocate XEvent data");
|
|
return FALSE;
|
|
}
|
|
|
|
respond->xselection.property = None;
|
|
respond->xselection.type = SelectionNotify;
|
|
respond->xselection.display = xevent->xselectionrequest.display;
|
|
respond->xselection.requestor = xevent->xselectionrequest.requestor;
|
|
respond->xselection.selection = xevent->xselectionrequest.selection;
|
|
respond->xselection.target = xevent->xselectionrequest.target;
|
|
respond->xselection.time = xevent->xselectionrequest.time;
|
|
|
|
if (xevent->xselectionrequest.target == clipboard->targets[0]) /* TIMESTAMP */
|
|
{
|
|
/* TODO */
|
|
}
|
|
else if (xevent->xselectionrequest.target ==
|
|
clipboard->targets[1]) /* TARGETS */
|
|
{
|
|
/* Someone else requests our available formats */
|
|
respond->xselection.property = xevent->xselectionrequest.property;
|
|
xf_cliprdr_provide_targets(clipboard, respond);
|
|
}
|
|
else
|
|
{
|
|
format = xf_cliprdr_get_server_format_by_atom(clipboard,
|
|
xevent->xselectionrequest.target);
|
|
|
|
if (format && (xevent->xselectionrequest.requestor != xfc->drawable))
|
|
{
|
|
formatId = format->formatId;
|
|
formatName = format->formatName;
|
|
rawTransfer = FALSE;
|
|
|
|
if (formatId == CF_RAW)
|
|
{
|
|
if (XGetWindowProperty(xfc->display, xevent->xselectionrequest.requestor,
|
|
clipboard->property_atom, 0, 4, 0, XA_INTEGER,
|
|
&type, &fmt, &length, &bytes_left, &data) != Success)
|
|
{
|
|
}
|
|
|
|
if (data)
|
|
{
|
|
rawTransfer = TRUE;
|
|
CopyMemory(&formatId, data, 4);
|
|
XFree(data);
|
|
}
|
|
}
|
|
|
|
/* We can compare format names by pointer value here as they are both
|
|
* taken from the same clipboard->serverFormats array */
|
|
matchingFormat = (formatId == clipboard->data_format_id)
|
|
&& (formatName == clipboard->data_format_name);
|
|
|
|
if (matchingFormat && (clipboard->data != 0) && !rawTransfer)
|
|
{
|
|
/* Cached converted clipboard data available. Send it now */
|
|
respond->xselection.property = xevent->xselectionrequest.property;
|
|
xf_cliprdr_provide_data(clipboard, respond, clipboard->data,
|
|
clipboard->data_length);
|
|
}
|
|
else if (matchingFormat && (clipboard->data_raw != 0) && rawTransfer)
|
|
{
|
|
/* Cached raw clipboard data available. Send it now */
|
|
respond->xselection.property = xevent->xselectionrequest.property;
|
|
xf_cliprdr_provide_data(clipboard, respond, clipboard->data_raw, clipboard->data_raw_length);
|
|
}
|
|
else if (clipboard->respond)
|
|
{
|
|
/* duplicate request */
|
|
}
|
|
else
|
|
{
|
|
/**
|
|
* Send clipboard data request to the server.
|
|
* Response will be postponed after receiving the data
|
|
*/
|
|
xf_cliprdr_clear_cached_data(clipboard);
|
|
respond->xselection.property = xevent->xselectionrequest.property;
|
|
clipboard->respond = respond;
|
|
clipboard->data_format_id = formatId;
|
|
clipboard->data_format_name = formatName;
|
|
clipboard->data_raw_format = rawTransfer;
|
|
delayRespond = TRUE;
|
|
xf_cliprdr_send_data_request(clipboard, formatId);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!delayRespond)
|
|
{
|
|
XSendEvent(xfc->display, xevent->xselectionrequest.requestor, 0, 0, respond);
|
|
XFlush(xfc->display);
|
|
free(respond);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static BOOL xf_cliprdr_process_selection_clear(xfClipboard* clipboard,
|
|
XEvent* xevent)
|
|
{
|
|
xfContext* xfc = clipboard->xfc;
|
|
|
|
WINPR_UNUSED(xevent);
|
|
|
|
if (xf_cliprdr_is_self_owned(clipboard))
|
|
return FALSE;
|
|
|
|
XDeleteProperty(xfc->display, clipboard->root_window, clipboard->property_atom);
|
|
return TRUE;
|
|
}
|
|
|
|
static BOOL xf_cliprdr_process_property_notify(xfClipboard* clipboard,
|
|
XEvent* xevent)
|
|
{
|
|
xfCliprdrFormat* format;
|
|
xfContext* xfc = NULL;
|
|
|
|
if (!clipboard)
|
|
return TRUE;
|
|
|
|
xfc = clipboard->xfc;
|
|
|
|
if (xevent->xproperty.atom != clipboard->property_atom)
|
|
return FALSE; /* Not cliprdr-related */
|
|
|
|
if (xevent->xproperty.window == clipboard->root_window)
|
|
{
|
|
xf_cliprdr_send_client_format_list(clipboard);
|
|
}
|
|
else if ((xevent->xproperty.window == xfc->drawable) &&
|
|
(xevent->xproperty.state == PropertyNewValue) && clipboard->incr_starts)
|
|
{
|
|
format = xf_cliprdr_get_client_format_by_id(clipboard,
|
|
clipboard->requestedFormatId);
|
|
|
|
if (format)
|
|
xf_cliprdr_get_requested_data(clipboard, format->atom);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void xf_cliprdr_handle_xevent(xfContext* xfc, XEvent* event)
|
|
{
|
|
xfClipboard* clipboard;
|
|
|
|
if (!xfc || !event)
|
|
return;
|
|
|
|
clipboard = xfc->clipboard;
|
|
|
|
if (!clipboard)
|
|
return;
|
|
|
|
#ifdef WITH_XFIXES
|
|
|
|
if (clipboard->xfixes_supported
|
|
&& event->type == XFixesSelectionNotify + clipboard->xfixes_event_base)
|
|
{
|
|
XFixesSelectionNotifyEvent* se = (XFixesSelectionNotifyEvent*) event;
|
|
|
|
if (se->subtype == XFixesSetSelectionOwnerNotify)
|
|
{
|
|
if (se->selection != clipboard->clipboard_atom)
|
|
return;
|
|
|
|
if (XGetSelectionOwner(xfc->display, se->selection) == xfc->drawable)
|
|
return;
|
|
|
|
clipboard->owner = None;
|
|
xf_cliprdr_check_owner(clipboard);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
#endif
|
|
|
|
switch (event->type)
|
|
{
|
|
case SelectionNotify:
|
|
xf_cliprdr_process_selection_notify(clipboard, event);
|
|
break;
|
|
|
|
case SelectionRequest:
|
|
xf_cliprdr_process_selection_request(clipboard, event);
|
|
break;
|
|
|
|
case SelectionClear:
|
|
xf_cliprdr_process_selection_clear(clipboard, event);
|
|
break;
|
|
|
|
case PropertyNotify:
|
|
xf_cliprdr_process_property_notify(clipboard, event);
|
|
break;
|
|
|
|
case FocusIn:
|
|
if (!clipboard->xfixes_supported)
|
|
{
|
|
xf_cliprdr_check_owner(clipboard);
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT xf_cliprdr_send_client_capabilities(xfClipboard* clipboard)
|
|
{
|
|
CLIPRDR_CAPABILITIES capabilities;
|
|
CLIPRDR_GENERAL_CAPABILITY_SET generalCapabilitySet;
|
|
capabilities.cCapabilitiesSets = 1;
|
|
capabilities.capabilitySets = (CLIPRDR_CAPABILITY_SET*) &
|
|
(generalCapabilitySet);
|
|
generalCapabilitySet.capabilitySetType = CB_CAPSTYPE_GENERAL;
|
|
generalCapabilitySet.capabilitySetLength = 12;
|
|
generalCapabilitySet.version = CB_CAPS_VERSION_2;
|
|
generalCapabilitySet.generalFlags = CB_USE_LONG_FORMAT_NAMES;
|
|
|
|
if (clipboard->streams_supported && clipboard->file_formats_registered)
|
|
generalCapabilitySet.generalFlags |=
|
|
CB_STREAM_FILECLIP_ENABLED | CB_FILECLIP_NO_FILE_PATHS;
|
|
|
|
return clipboard->context->ClientCapabilities(clipboard->context,
|
|
&capabilities);
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT xf_cliprdr_send_client_format_list(xfClipboard* clipboard)
|
|
{
|
|
UINT32 i, numFormats;
|
|
CLIPRDR_FORMAT* formats = NULL;
|
|
CLIPRDR_FORMAT_LIST formatList = { 0 };
|
|
xfContext* xfc = clipboard->xfc;
|
|
UINT ret;
|
|
numFormats = clipboard->numClientFormats;
|
|
|
|
if (numFormats)
|
|
{
|
|
if (!(formats = (CLIPRDR_FORMAT*) calloc(numFormats, sizeof(CLIPRDR_FORMAT))))
|
|
{
|
|
WLog_ERR(TAG, "failed to allocate %"PRIu32" CLIPRDR_FORMAT structs", numFormats);
|
|
return CHANNEL_RC_NO_MEMORY;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < numFormats; i++)
|
|
{
|
|
formats[i].formatId = clipboard->clientFormats[i].formatId;
|
|
formats[i].formatName = clipboard->clientFormats[i].formatName;
|
|
}
|
|
|
|
formatList.msgFlags = CB_RESPONSE_OK;
|
|
formatList.numFormats = numFormats;
|
|
formatList.formats = formats;
|
|
ret = clipboard->context->ClientFormatList(clipboard->context, &formatList);
|
|
free(formats);
|
|
|
|
if (clipboard->owner && clipboard->owner != xfc->drawable)
|
|
{
|
|
/* Request the owner for TARGETS, and wait for SelectionNotify event */
|
|
XConvertSelection(xfc->display, clipboard->clipboard_atom,
|
|
clipboard->targets[1], clipboard->property_atom, xfc->drawable, CurrentTime);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT xf_cliprdr_send_client_format_list_response(xfClipboard* clipboard,
|
|
BOOL status)
|
|
{
|
|
CLIPRDR_FORMAT_LIST_RESPONSE formatListResponse;
|
|
formatListResponse.msgType = CB_FORMAT_LIST_RESPONSE;
|
|
formatListResponse.msgFlags = status ? CB_RESPONSE_OK : CB_RESPONSE_FAIL;
|
|
formatListResponse.dataLen = 0;
|
|
return clipboard->context->ClientFormatListResponse(clipboard->context,
|
|
&formatListResponse);
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT xf_cliprdr_monitor_ready(CliprdrClientContext* context,
|
|
const CLIPRDR_MONITOR_READY* monitorReady)
|
|
{
|
|
xfClipboard* clipboard = (xfClipboard*) context->custom;
|
|
UINT ret;
|
|
|
|
WINPR_UNUSED(monitorReady);
|
|
|
|
if ((ret = xf_cliprdr_send_client_capabilities(clipboard)) != CHANNEL_RC_OK)
|
|
return ret;
|
|
|
|
if ((ret = xf_cliprdr_send_client_format_list(clipboard)) != CHANNEL_RC_OK)
|
|
return ret;
|
|
|
|
clipboard->sync = TRUE;
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT xf_cliprdr_server_capabilities(CliprdrClientContext* context,
|
|
const CLIPRDR_CAPABILITIES* capabilities)
|
|
{
|
|
UINT32 i;
|
|
const CLIPRDR_CAPABILITY_SET* caps;
|
|
const CLIPRDR_GENERAL_CAPABILITY_SET* generalCaps;
|
|
const BYTE* capsPtr = (const BYTE*) capabilities->capabilitySets;
|
|
xfClipboard* clipboard = (xfClipboard*) context->custom;
|
|
clipboard->streams_supported = FALSE;
|
|
|
|
for (i = 0; i < capabilities->cCapabilitiesSets; i++)
|
|
{
|
|
caps = (const CLIPRDR_CAPABILITY_SET*) capsPtr;
|
|
|
|
if (caps->capabilitySetType == CB_CAPSTYPE_GENERAL)
|
|
{
|
|
generalCaps = (const CLIPRDR_GENERAL_CAPABILITY_SET*) caps;
|
|
|
|
if (generalCaps->generalFlags & CB_STREAM_FILECLIP_ENABLED)
|
|
{
|
|
clipboard->streams_supported = TRUE;
|
|
}
|
|
}
|
|
|
|
capsPtr += caps->capabilitySetLength;
|
|
}
|
|
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT xf_cliprdr_server_format_list(CliprdrClientContext* context,
|
|
const CLIPRDR_FORMAT_LIST* formatList)
|
|
{
|
|
UINT32 i;
|
|
int j;
|
|
xfClipboard* clipboard = (xfClipboard*) context->custom;
|
|
xfContext* xfc = clipboard->xfc;
|
|
UINT ret;
|
|
xf_cliprdr_clear_cached_data(clipboard);
|
|
clipboard->data_format_id = -1;
|
|
clipboard->data_format_name = NULL;
|
|
|
|
if (clipboard->serverFormats)
|
|
{
|
|
for (j = 0; j < clipboard->numServerFormats; j++)
|
|
free(clipboard->serverFormats[j].formatName);
|
|
|
|
free(clipboard->serverFormats);
|
|
clipboard->serverFormats = NULL;
|
|
clipboard->numServerFormats = 0;
|
|
}
|
|
|
|
clipboard->numServerFormats = formatList->numFormats + 1; /* +1 for CF_RAW */
|
|
|
|
if (!(clipboard->serverFormats = (CLIPRDR_FORMAT*) calloc(
|
|
clipboard->numServerFormats, sizeof(CLIPRDR_FORMAT))))
|
|
{
|
|
WLog_ERR(TAG, "failed to allocate %d CLIPRDR_FORMAT structs",
|
|
clipboard->numServerFormats);
|
|
return CHANNEL_RC_NO_MEMORY;
|
|
}
|
|
|
|
for (i = 0; i < formatList->numFormats; i++)
|
|
{
|
|
CLIPRDR_FORMAT* format = &formatList->formats[i];
|
|
clipboard->serverFormats[i].formatId = format->formatId;
|
|
|
|
if (format->formatName)
|
|
{
|
|
clipboard->serverFormats[i].formatName = _strdup(format->formatName);
|
|
|
|
if (!clipboard->serverFormats[i].formatName)
|
|
{
|
|
UINT32 k;
|
|
|
|
for (k = 0; k < i; k++)
|
|
free(clipboard->serverFormats[k].formatName);
|
|
|
|
clipboard->numServerFormats = 0;
|
|
free(clipboard->serverFormats);
|
|
clipboard->serverFormats = NULL;
|
|
return CHANNEL_RC_NO_MEMORY;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* CF_RAW is always implicitly supported by the server */
|
|
{
|
|
CLIPRDR_FORMAT* format = &clipboard->serverFormats[formatList->numFormats];
|
|
format->formatId = CF_RAW;
|
|
format->formatName = NULL;
|
|
}
|
|
xf_cliprdr_provide_server_format_list(clipboard);
|
|
clipboard->numTargets = 2;
|
|
|
|
for (i = 0; i < formatList->numFormats; i++)
|
|
{
|
|
CLIPRDR_FORMAT* format = &formatList->formats[i];
|
|
|
|
for (j = 0; j < clipboard->numClientFormats; j++)
|
|
{
|
|
if (xf_cliprdr_formats_equal(format, &clipboard->clientFormats[j]))
|
|
{
|
|
xf_cliprdr_append_target(clipboard, clipboard->clientFormats[j].atom);
|
|
}
|
|
}
|
|
}
|
|
|
|
ret = xf_cliprdr_send_client_format_list_response(clipboard, TRUE);
|
|
XSetSelectionOwner(xfc->display, clipboard->clipboard_atom, xfc->drawable,
|
|
CurrentTime);
|
|
XFlush(xfc->display);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT xf_cliprdr_server_format_list_response(CliprdrClientContext*
|
|
context, const CLIPRDR_FORMAT_LIST_RESPONSE* formatListResponse)
|
|
{
|
|
//xfClipboard* clipboard = (xfClipboard*) context->custom;
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT xf_cliprdr_server_format_data_request(CliprdrClientContext* context,
|
|
const CLIPRDR_FORMAT_DATA_REQUEST* formatDataRequest)
|
|
{
|
|
BOOL rawTransfer;
|
|
xfCliprdrFormat* format = NULL;
|
|
UINT32 formatId = formatDataRequest->requestedFormatId;
|
|
xfClipboard* clipboard = (xfClipboard*) context->custom;
|
|
xfContext* xfc = clipboard->xfc;
|
|
rawTransfer = xf_cliprdr_is_raw_transfer_available(clipboard);
|
|
|
|
if (rawTransfer)
|
|
{
|
|
format = xf_cliprdr_get_client_format_by_id(clipboard, CF_RAW);
|
|
XChangeProperty(xfc->display, xfc->drawable, clipboard->property_atom,
|
|
XA_INTEGER, 32, PropModeReplace, (BYTE*) &formatId, 1);
|
|
}
|
|
else
|
|
format = xf_cliprdr_get_client_format_by_id(clipboard, formatId);
|
|
|
|
if (!format)
|
|
return xf_cliprdr_send_data_response(clipboard, NULL, 0);
|
|
|
|
clipboard->requestedFormatId = rawTransfer ? CF_RAW : formatId;
|
|
XConvertSelection(xfc->display, clipboard->clipboard_atom,
|
|
format->atom, clipboard->property_atom, xfc->drawable, CurrentTime);
|
|
XFlush(xfc->display);
|
|
/* After this point, we expect a SelectionNotify event from the clipboard owner. */
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT xf_cliprdr_server_format_data_response(CliprdrClientContext*
|
|
context, const CLIPRDR_FORMAT_DATA_RESPONSE* formatDataResponse)
|
|
{
|
|
BOOL bSuccess;
|
|
BYTE* pDstData;
|
|
UINT32 DstSize;
|
|
UINT32 SrcSize;
|
|
UINT32 srcFormatId;
|
|
UINT32 dstFormatId;
|
|
BOOL nullTerminated = FALSE;
|
|
UINT32 size = formatDataResponse->dataLen;
|
|
const BYTE* data = formatDataResponse->requestedFormatData;
|
|
xfClipboard* clipboard = (xfClipboard*) context->custom;
|
|
xfContext* xfc = clipboard->xfc;
|
|
|
|
if (!clipboard->respond)
|
|
return CHANNEL_RC_OK;
|
|
|
|
xf_cliprdr_clear_cached_data(clipboard);
|
|
pDstData = NULL;
|
|
DstSize = 0;
|
|
srcFormatId = 0;
|
|
dstFormatId = 0;
|
|
|
|
if (clipboard->data_raw_format)
|
|
{
|
|
srcFormatId = CF_RAW;
|
|
dstFormatId = CF_RAW;
|
|
}
|
|
else if (clipboard->data_format_name)
|
|
{
|
|
if (strcmp(clipboard->data_format_name, "HTML Format") == 0)
|
|
{
|
|
srcFormatId = ClipboardGetFormatId(clipboard->system, "HTML Format");
|
|
dstFormatId = ClipboardGetFormatId(clipboard->system, "text/html");
|
|
nullTerminated = TRUE;
|
|
}
|
|
|
|
if (strcmp(clipboard->data_format_name, "FileGroupDescriptorW") == 0)
|
|
{
|
|
srcFormatId = ClipboardGetFormatId(clipboard->system, "FileGroupDescriptorW");
|
|
dstFormatId = ClipboardGetFormatId(clipboard->system, "text/uri-list");
|
|
nullTerminated = FALSE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
switch (clipboard->data_format_id)
|
|
{
|
|
case CF_TEXT:
|
|
srcFormatId = CF_TEXT;
|
|
dstFormatId = ClipboardGetFormatId(clipboard->system, "UTF8_STRING");
|
|
nullTerminated = TRUE;
|
|
break;
|
|
|
|
case CF_OEMTEXT:
|
|
srcFormatId = CF_OEMTEXT;
|
|
dstFormatId = ClipboardGetFormatId(clipboard->system, "UTF8_STRING");
|
|
nullTerminated = TRUE;
|
|
break;
|
|
|
|
case CF_UNICODETEXT:
|
|
srcFormatId = CF_UNICODETEXT;
|
|
dstFormatId = ClipboardGetFormatId(clipboard->system, "UTF8_STRING");
|
|
nullTerminated = TRUE;
|
|
break;
|
|
|
|
case CF_DIB:
|
|
srcFormatId = CF_DIB;
|
|
dstFormatId = ClipboardGetFormatId(clipboard->system, "image/bmp");
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
SrcSize = (UINT32) size;
|
|
bSuccess = ClipboardSetData(clipboard->system, srcFormatId, data, SrcSize);
|
|
|
|
if (bSuccess)
|
|
{
|
|
if (SrcSize == 0)
|
|
{
|
|
WLog_INFO(TAG, "skipping, empty data detected!!!");
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
pDstData = (BYTE*) ClipboardGetData(clipboard->system, dstFormatId, &DstSize);
|
|
|
|
if (!pDstData)
|
|
{
|
|
WLog_WARN(TAG, "failed to get clipboard data in format %s [source format %s]",
|
|
ClipboardGetFormatName(clipboard->system, dstFormatId),
|
|
ClipboardGetFormatName(clipboard->system, srcFormatId));
|
|
}
|
|
|
|
if (nullTerminated && pDstData)
|
|
{
|
|
BYTE* nullTerminator = memchr(pDstData, '\0', DstSize);
|
|
if (nullTerminator)
|
|
DstSize = nullTerminator - pDstData;
|
|
}
|
|
}
|
|
|
|
/* Cache converted and original data to avoid doing a possibly costly
|
|
* conversion again on subsequent requests */
|
|
clipboard->data = pDstData;
|
|
clipboard->data_length = DstSize;
|
|
/* We have to copy the original data again, as pSrcData is now owned
|
|
* by clipboard->system. Memory allocation failure is not fatal here
|
|
* as this is only a cached value. */
|
|
clipboard->data_raw = (BYTE*) malloc(size);
|
|
|
|
if (clipboard->data_raw)
|
|
{
|
|
CopyMemory(clipboard->data_raw, data, size);
|
|
clipboard->data_raw_length = size;
|
|
}
|
|
else
|
|
{
|
|
WLog_WARN(TAG, "failed to allocate %"PRIu32" bytes for a copy of raw clipboard data", size);
|
|
}
|
|
|
|
xf_cliprdr_provide_data(clipboard, clipboard->respond, pDstData, DstSize);
|
|
XSendEvent(xfc->display, clipboard->respond->xselection.requestor, 0, 0,
|
|
clipboard->respond);
|
|
XFlush(xfc->display);
|
|
free(clipboard->respond);
|
|
clipboard->respond = NULL;
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
static UINT xf_cliprdr_server_file_size_request(xfClipboard* clipboard,
|
|
const CLIPRDR_FILE_CONTENTS_REQUEST* fileContentsRequest)
|
|
{
|
|
wClipboardFileSizeRequest request = { 0 };
|
|
request.streamId = fileContentsRequest->streamId;
|
|
request.listIndex = fileContentsRequest->listIndex;
|
|
|
|
if (fileContentsRequest->cbRequested != sizeof(UINT64))
|
|
{
|
|
WLog_WARN(TAG, "unexpected FILECONTENTS_SIZE request: %"PRIu32" bytes",
|
|
fileContentsRequest->cbRequested);
|
|
}
|
|
|
|
return clipboard->delegate->ClientRequestFileSize(clipboard->delegate, &request);
|
|
}
|
|
|
|
static UINT xf_cliprdr_server_file_range_request(xfClipboard* clipboard,
|
|
const CLIPRDR_FILE_CONTENTS_REQUEST* fileContentsRequest)
|
|
{
|
|
wClipboardFileRangeRequest request = { 0 };
|
|
request.streamId = fileContentsRequest->streamId;
|
|
request.listIndex = fileContentsRequest->listIndex;
|
|
request.nPositionLow = fileContentsRequest->nPositionLow;
|
|
request.nPositionHigh = fileContentsRequest->nPositionHigh;
|
|
request.cbRequested = fileContentsRequest->cbRequested;
|
|
return clipboard->delegate->ClientRequestFileRange(clipboard->delegate, &request);
|
|
}
|
|
|
|
static UINT xf_cliprdr_send_file_contents_failure(CliprdrClientContext* context,
|
|
const CLIPRDR_FILE_CONTENTS_REQUEST* fileContentsRequest)
|
|
{
|
|
CLIPRDR_FILE_CONTENTS_RESPONSE response = { 0 };
|
|
response.msgFlags = CB_RESPONSE_FAIL;
|
|
response.streamId = fileContentsRequest->streamId;
|
|
response.dwFlags = fileContentsRequest->dwFlags;
|
|
return context->ClientFileContentsResponse(context, &response);
|
|
}
|
|
|
|
static UINT xf_cliprdr_server_file_contents_request(CliprdrClientContext* context,
|
|
const CLIPRDR_FILE_CONTENTS_REQUEST* fileContentsRequest)
|
|
{
|
|
UINT error = NO_ERROR;
|
|
xfClipboard* clipboard = context->custom;
|
|
|
|
/*
|
|
* MS-RDPECLIP 2.2.5.3 File Contents Request PDU (CLIPRDR_FILECONTENTS_REQUEST):
|
|
* The FILECONTENTS_SIZE and FILECONTENTS_RANGE flags MUST NOT be set at the same time.
|
|
*/
|
|
if ((fileContentsRequest->dwFlags & (FILECONTENTS_SIZE | FILECONTENTS_RANGE)) ==
|
|
(FILECONTENTS_SIZE | FILECONTENTS_RANGE))
|
|
{
|
|
WLog_ERR(TAG, "invalid CLIPRDR_FILECONTENTS_REQUEST.dwFlags");
|
|
return xf_cliprdr_send_file_contents_failure(context, fileContentsRequest);
|
|
}
|
|
|
|
if (fileContentsRequest->dwFlags & FILECONTENTS_SIZE)
|
|
error = xf_cliprdr_server_file_size_request(clipboard, fileContentsRequest);
|
|
|
|
if (fileContentsRequest->dwFlags & FILECONTENTS_RANGE)
|
|
error = xf_cliprdr_server_file_range_request(clipboard, fileContentsRequest);
|
|
|
|
if (error)
|
|
{
|
|
WLog_ERR(TAG, "failed to handle CLIPRDR_FILECONTENTS_REQUEST: 0x%08X", error);
|
|
return xf_cliprdr_send_file_contents_failure(context, fileContentsRequest);
|
|
}
|
|
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
static UINT xf_cliprdr_clipboard_file_size_success(wClipboardDelegate* delegate,
|
|
const wClipboardFileSizeRequest* request, UINT64 fileSize)
|
|
{
|
|
CLIPRDR_FILE_CONTENTS_RESPONSE response = { 0 };
|
|
xfClipboard* clipboard = delegate->custom;
|
|
response.msgFlags = CB_RESPONSE_OK;
|
|
response.streamId = request->streamId;
|
|
response.dwFlags = FILECONTENTS_SIZE;
|
|
response.cbRequested = sizeof(UINT64);
|
|
response.requestedData = (BYTE*) &fileSize;
|
|
return clipboard->context->ClientFileContentsResponse(clipboard->context, &response);
|
|
}
|
|
|
|
static UINT xf_cliprdr_clipboard_file_size_failure(wClipboardDelegate* delegate,
|
|
const wClipboardFileSizeRequest* request, UINT errorCode)
|
|
{
|
|
CLIPRDR_FILE_CONTENTS_RESPONSE response = { 0 };
|
|
xfClipboard* clipboard = delegate->custom;
|
|
WINPR_UNUSED(errorCode);
|
|
|
|
response.msgFlags = CB_RESPONSE_FAIL;
|
|
response.streamId = request->streamId;
|
|
response.dwFlags = FILECONTENTS_SIZE;
|
|
return clipboard->context->ClientFileContentsResponse(clipboard->context, &response);
|
|
}
|
|
|
|
static UINT xf_cliprdr_clipboard_file_range_success(wClipboardDelegate* delegate,
|
|
const wClipboardFileRangeRequest* request, const BYTE* data, UINT32 size)
|
|
{
|
|
CLIPRDR_FILE_CONTENTS_RESPONSE response = { 0 };
|
|
xfClipboard* clipboard = delegate->custom;
|
|
response.msgFlags = CB_RESPONSE_OK;
|
|
response.streamId = request->streamId;
|
|
response.dwFlags = FILECONTENTS_RANGE;
|
|
response.cbRequested = size;
|
|
response.requestedData = (BYTE*) data;
|
|
return clipboard->context->ClientFileContentsResponse(clipboard->context, &response);
|
|
}
|
|
|
|
static UINT xf_cliprdr_clipboard_file_range_failure(wClipboardDelegate* delegate,
|
|
const wClipboardFileRangeRequest* request, UINT errorCode)
|
|
{
|
|
CLIPRDR_FILE_CONTENTS_RESPONSE response = { 0 };
|
|
xfClipboard* clipboard = delegate->custom;
|
|
WINPR_UNUSED(errorCode);
|
|
|
|
response.msgFlags = CB_RESPONSE_FAIL;
|
|
response.streamId = request->streamId;
|
|
response.dwFlags = FILECONTENTS_RANGE;
|
|
return clipboard->context->ClientFileContentsResponse(clipboard->context, &response);
|
|
}
|
|
|
|
xfClipboard* xf_clipboard_new(xfContext* xfc)
|
|
{
|
|
int i, n = 0;
|
|
rdpChannels* channels;
|
|
xfClipboard* clipboard;
|
|
|
|
if (!(clipboard = (xfClipboard*) calloc(1, sizeof(xfClipboard))))
|
|
{
|
|
WLog_ERR(TAG, "failed to allocate xfClipboard data");
|
|
return NULL;
|
|
}
|
|
|
|
xfc->clipboard = clipboard;
|
|
clipboard->xfc = xfc;
|
|
channels = ((rdpContext*) xfc)->channels;
|
|
clipboard->channels = channels;
|
|
clipboard->system = ClipboardCreate();
|
|
clipboard->requestedFormatId = -1;
|
|
clipboard->root_window = DefaultRootWindow(xfc->display);
|
|
clipboard->clipboard_atom = XInternAtom(xfc->display, "CLIPBOARD", FALSE);
|
|
|
|
if (clipboard->clipboard_atom == None)
|
|
{
|
|
WLog_ERR(TAG, "unable to get CLIPBOARD atom");
|
|
goto error;
|
|
}
|
|
|
|
clipboard->property_atom = XInternAtom(xfc->display, "_FREERDP_CLIPRDR", FALSE);
|
|
clipboard->raw_transfer_atom = XInternAtom(xfc->display, "_FREERDP_CLIPRDR_RAW", FALSE);
|
|
clipboard->raw_format_list_atom =
|
|
XInternAtom(xfc->display, "_FREERDP_CLIPRDR_FORMATS", FALSE);
|
|
xf_cliprdr_set_raw_transfer_enabled(clipboard, TRUE);
|
|
XSelectInput(xfc->display, clipboard->root_window, PropertyChangeMask);
|
|
#ifdef WITH_XFIXES
|
|
|
|
if (XFixesQueryExtension(xfc->display, &clipboard->xfixes_event_base,
|
|
&clipboard->xfixes_error_base))
|
|
{
|
|
int xfmajor, xfminor;
|
|
|
|
if (XFixesQueryVersion(xfc->display, &xfmajor, &xfminor))
|
|
{
|
|
XFixesSelectSelectionInput(xfc->display, clipboard->root_window,
|
|
clipboard->clipboard_atom, XFixesSetSelectionOwnerNotifyMask);
|
|
clipboard->xfixes_supported = TRUE;
|
|
}
|
|
else
|
|
{
|
|
WLog_ERR(TAG, "Error querying X Fixes extension version");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
WLog_ERR(TAG, "Error loading X Fixes extension");
|
|
}
|
|
|
|
#else
|
|
WLog_ERR(TAG,
|
|
"Warning: Using clipboard redirection without XFIXES extension is strongly discouraged!");
|
|
#endif
|
|
clipboard->clientFormats[n].atom = XInternAtom(xfc->display, "_FREERDP_RAW", False);
|
|
clipboard->clientFormats[n].formatId = CF_RAW;
|
|
n++;
|
|
clipboard->clientFormats[n].atom = XInternAtom(xfc->display, "UTF8_STRING", False);
|
|
clipboard->clientFormats[n].formatId = CF_UNICODETEXT;
|
|
n++;
|
|
clipboard->clientFormats[n].atom = XA_STRING;
|
|
clipboard->clientFormats[n].formatId = CF_TEXT;
|
|
n++;
|
|
clipboard->clientFormats[n].atom = XInternAtom(xfc->display, "image/png", False);
|
|
clipboard->clientFormats[n].formatId = CB_FORMAT_PNG;
|
|
n++;
|
|
clipboard->clientFormats[n].atom = XInternAtom(xfc->display, "image/jpeg", False);
|
|
clipboard->clientFormats[n].formatId = CB_FORMAT_JPEG;
|
|
n++;
|
|
clipboard->clientFormats[n].atom = XInternAtom(xfc->display, "image/gif", False);
|
|
clipboard->clientFormats[n].formatId = CB_FORMAT_GIF;
|
|
n++;
|
|
clipboard->clientFormats[n].atom = XInternAtom(xfc->display, "image/bmp", False);
|
|
clipboard->clientFormats[n].formatId = CF_DIB;
|
|
n++;
|
|
clipboard->clientFormats[n].atom = XInternAtom(xfc->display, "text/html", False);
|
|
clipboard->clientFormats[n].formatId = CB_FORMAT_HTML;
|
|
clipboard->clientFormats[n].formatName = _strdup("HTML Format");
|
|
|
|
if (!clipboard->clientFormats[n].formatName)
|
|
goto error;
|
|
|
|
n++;
|
|
|
|
/*
|
|
* Existence of registered format IDs for file formats does not guarantee that they are
|
|
* in fact supported by wClipboard (as further initialization may have failed after format
|
|
* registration). However, they are definitely not supported if there are no registered
|
|
* formats. In this case we should not list file formats in TARGETS.
|
|
*/
|
|
if (ClipboardGetFormatId(clipboard->system, "text/uri-list"))
|
|
{
|
|
clipboard->file_formats_registered = TRUE;
|
|
clipboard->clientFormats[n].atom = XInternAtom(xfc->display, "text/uri-list", False);
|
|
clipboard->clientFormats[n].formatId = CB_FORMAT_TEXTURILIST;
|
|
clipboard->clientFormats[n].formatName = _strdup("FileGroupDescriptorW");
|
|
|
|
if (!clipboard->clientFormats[n].formatName)
|
|
goto error;
|
|
|
|
n++;
|
|
}
|
|
|
|
clipboard->numClientFormats = n;
|
|
clipboard->targets[0] = XInternAtom(xfc->display, "TIMESTAMP", FALSE);
|
|
clipboard->targets[1] = XInternAtom(xfc->display, "TARGETS", FALSE);
|
|
clipboard->numTargets = 2;
|
|
clipboard->incr_atom = XInternAtom(xfc->display, "INCR", FALSE);
|
|
clipboard->delegate = ClipboardGetDelegate(clipboard->system);
|
|
clipboard->delegate->custom = clipboard;
|
|
/* TODO: set up a filesystem base path for local URI */
|
|
/* clipboard->delegate->basePath = "file:///tmp/foo/bar/gaga"; */
|
|
clipboard->delegate->ClipboardFileSizeSuccess = xf_cliprdr_clipboard_file_size_success;
|
|
clipboard->delegate->ClipboardFileSizeFailure = xf_cliprdr_clipboard_file_size_failure;
|
|
clipboard->delegate->ClipboardFileRangeSuccess = xf_cliprdr_clipboard_file_range_success;
|
|
clipboard->delegate->ClipboardFileRangeFailure = xf_cliprdr_clipboard_file_range_failure;
|
|
return clipboard;
|
|
error:
|
|
|
|
for (i = 0; i < n; i++)
|
|
free(clipboard->clientFormats[i].formatName);
|
|
|
|
ClipboardDestroy(clipboard->system);
|
|
free(clipboard);
|
|
return NULL;
|
|
}
|
|
|
|
void xf_clipboard_free(xfClipboard* clipboard)
|
|
{
|
|
int i;
|
|
|
|
if (!clipboard)
|
|
return;
|
|
|
|
if (clipboard->serverFormats)
|
|
{
|
|
for (i = 0; i < clipboard->numServerFormats; i++)
|
|
free(clipboard->serverFormats[i].formatName);
|
|
|
|
free(clipboard->serverFormats);
|
|
clipboard->serverFormats = NULL;
|
|
}
|
|
|
|
if (clipboard->numClientFormats)
|
|
{
|
|
for (i = 0; i < clipboard->numClientFormats; i++)
|
|
free(clipboard->clientFormats[i].formatName);
|
|
}
|
|
|
|
ClipboardDestroy(clipboard->system);
|
|
free(clipboard->data);
|
|
free(clipboard->data_raw);
|
|
free(clipboard->respond);
|
|
free(clipboard->incr_data);
|
|
free(clipboard);
|
|
}
|
|
|
|
void xf_cliprdr_init(xfContext* xfc, CliprdrClientContext* cliprdr)
|
|
{
|
|
xfc->cliprdr = cliprdr;
|
|
xfc->clipboard->context = cliprdr;
|
|
cliprdr->custom = (void*) xfc->clipboard;
|
|
cliprdr->MonitorReady = xf_cliprdr_monitor_ready;
|
|
cliprdr->ServerCapabilities = xf_cliprdr_server_capabilities;
|
|
cliprdr->ServerFormatList = xf_cliprdr_server_format_list;
|
|
cliprdr->ServerFormatListResponse = xf_cliprdr_server_format_list_response;
|
|
cliprdr->ServerFormatDataRequest = xf_cliprdr_server_format_data_request;
|
|
cliprdr->ServerFormatDataResponse = xf_cliprdr_server_format_data_response;
|
|
cliprdr->ServerFileContentsRequest = xf_cliprdr_server_file_contents_request;
|
|
}
|
|
|
|
void xf_cliprdr_uninit(xfContext* xfc, CliprdrClientContext* cliprdr)
|
|
{
|
|
xfc->cliprdr = NULL;
|
|
cliprdr->custom = NULL;
|
|
|
|
if (xfc->clipboard)
|
|
xfc->clipboard->context = NULL;
|
|
}
|