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dff3686642
FreeRDP/client/X11/xf_cliprdr.c
kubistika dff3686642 channels: cliprdr: remove formatDataResp.dwFlags 
According to the channel docs, this field is only used in format data
request. Therefore, there's no need to hold it in the response. cliprdr
server code was copy-pasted from client code, therefore this must be
some leftover.
2019-10-18 14:20:26 +02:00

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/**
* 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;
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.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;
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.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;
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;
}
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