| 1 |
/* -*- c-basic-offset: 8 -*- |
| 2 |
rdesktop: A Remote Desktop Protocol client. |
| 3 |
Protocol services - Clipboard functions |
| 4 |
Copyright (C) Erik Forsberg <forsberg@cendio.se> 2003 |
| 5 |
|
| 6 |
This program is free software; you can redistribute it and/or modify |
| 7 |
it under the terms of the GNU General Public License as published by |
| 8 |
the Free Software Foundation; either version 2 of the License, or |
| 9 |
(at your option) any later version. |
| 10 |
|
| 11 |
This program is distributed in the hope that it will be useful, |
| 12 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
GNU General Public License for more details. |
| 15 |
|
| 16 |
You should have received a copy of the GNU General Public License |
| 17 |
along with this program; if not, write to the Free Software |
| 18 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 19 |
*/ |
| 20 |
|
| 21 |
#include <X11/Xlib.h> |
| 22 |
#include <X11/Xatom.h> |
| 23 |
#include "rdesktop.h" |
| 24 |
|
| 25 |
extern BOOL encryption; |
| 26 |
extern Display *display; |
| 27 |
extern Window wnd; |
| 28 |
extern Time last_gesturetime; |
| 29 |
|
| 30 |
// static Time selection_timestamp; |
| 31 |
static Atom clipboard_atom, primary_atom, targets_atom, timestamp_atom; |
| 32 |
static Atom rdesktop_clipboard_target_atom, incr_atom; |
| 33 |
static cliprdr_dataformat *server_formats = NULL; |
| 34 |
static uint16 num_server_formats = 0; |
| 35 |
static XSelectionEvent selection_event; |
| 36 |
static uint16 clipboard_channelno; |
| 37 |
static Atom targets[NUM_TARGETS]; |
| 38 |
|
| 39 |
static void |
| 40 |
cliprdr_print_server_formats(void) |
| 41 |
{ |
| 42 |
#ifdef WITH_DEBUG_CLIPBOARD |
| 43 |
cliprdr_dataformat *this; |
| 44 |
uint16 i = 0; |
| 45 |
this = server_formats; |
| 46 |
DEBUG_CLIPBOARD(("There should be %d server formats.\n", num_server_formats)); |
| 47 |
while (NULL != this) |
| 48 |
{ |
| 49 |
DEBUG_CLIPBOARD(("Format code %d\n", this->identifier)); |
| 50 |
i++; |
| 51 |
this = this->next; |
| 52 |
} |
| 53 |
DEBUG_CLIPBOARD(("There were %d server formats.\n", i)); |
| 54 |
#endif |
| 55 |
} |
| 56 |
/* |
| 57 |
static void |
| 58 |
cliprdr_set_selection_timestamp(void) |
| 59 |
{ |
| 60 |
XEvent xev; |
| 61 |
DEBUG_CLIPBOARD(("Changing a property in order to get a timestamp\n")); |
| 62 |
fflush(stdout); |
| 63 |
XChangeProperty(display, wnd, rdesktop_clipboard_target_atom, |
| 64 |
XA_ATOM, 32, PropModeAppend, 0, 0); |
| 65 |
DEBUG_CLIPBOARD(("Waiting for PropertyChange on wnd\n")); |
| 66 |
fflush(stdout); |
| 67 |
XWindowEvent(display, wnd, |
| 68 |
PropertyChangeMask, &xev); |
| 69 |
DEBUG_CLIPBOARD(("Setting selection_timestamp\n")); |
| 70 |
fflush(stdout); |
| 71 |
selection_timestamp = xev.xproperty.time; |
| 72 |
} |
| 73 |
*/ |
| 74 |
|
| 75 |
static void |
| 76 |
cliprdr_send_format_announce(void) |
| 77 |
{ |
| 78 |
DEBUG_CLIPBOARD(("Sending format announce\n")); |
| 79 |
|
| 80 |
STREAM s; |
| 81 |
int number_of_formats = 1; |
| 82 |
s = sec_init(encryption ? SEC_ENCRYPT : 0, number_of_formats*36+12+4+4); |
| 83 |
out_uint32_le(s, number_of_formats*36+12); |
| 84 |
out_uint32_le(s, 0x13); |
| 85 |
out_uint16_le(s, 2); |
| 86 |
out_uint16_le(s, 0); |
| 87 |
out_uint32_le(s, number_of_formats*36); |
| 88 |
|
| 89 |
// out_uint32_le(s, 0xd); // FIXME: This is a rather bogus unicode text description.. |
| 90 |
// rdp_out_unistr(s, "", 16); |
| 91 |
// out_uint8s(s, 32); |
| 92 |
|
| 93 |
|
| 94 |
out_uint32_le(s, 1); // FIXME: This is a rather bogus text description.. |
| 95 |
out_uint8s(s, 32); |
| 96 |
|
| 97 |
out_uint32_le(s, 0); |
| 98 |
|
| 99 |
s_mark_end(s); |
| 100 |
sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, |
| 101 |
clipboard_channelno); |
| 102 |
} |
| 103 |
|
| 104 |
|
| 105 |
static void |
| 106 |
cliprdr_send_empty_datapacket(void) |
| 107 |
{ |
| 108 |
STREAM out; |
| 109 |
out = sec_init(encryption ? SEC_ENCRYPT : 0, |
| 110 |
20); |
| 111 |
out_uint32_le(out, 12); |
| 112 |
out_uint32_le(out, 0x13); |
| 113 |
out_uint16_le(out, 5); |
| 114 |
out_uint16_le(out, 1); |
| 115 |
out_uint32_le(out, 0); |
| 116 |
/* Insert null string here? */ |
| 117 |
out_uint32_le(out, 0); |
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s_mark_end(out); |
| 119 |
|
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sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, |
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clipboard_channelno); |
| 122 |
} |
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|
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|
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void |
| 126 |
cliprdr_handle_SelectionNotify(XSelectionEvent *event) |
| 127 |
{ |
| 128 |
|
| 129 |
unsigned char *data, *datap; |
| 130 |
unsigned long nitems, bytes_left; |
| 131 |
|
| 132 |
unsigned long bytes_left_to_transfer; |
| 133 |
int res, i; |
| 134 |
|
| 135 |
int format; |
| 136 |
Atom type_return; |
| 137 |
Atom best_target; |
| 138 |
Atom *supported_targets; |
| 139 |
|
| 140 |
STREAM out; |
| 141 |
|
| 142 |
DEBUG_CLIPBOARD(("cliprdr_handle_SelectionNotify\n")); |
| 143 |
|
| 144 |
if (None == event->property) { |
| 145 |
cliprdr_send_empty_datapacket(); |
| 146 |
return; /* Selection failed */ |
| 147 |
} |
| 148 |
|
| 149 |
DEBUG_CLIPBOARD(("selection: %s, target: %s, property: %s\n", |
| 150 |
XGetAtomName(display, event->selection), |
| 151 |
XGetAtomName(display, event->target), |
| 152 |
XGetAtomName(display, event->property))); |
| 153 |
|
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if (targets_atom == event->target) { |
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/* Response to TARGETS request. Let's find the target |
| 156 |
we want and request that */ |
| 157 |
res = XGetWindowProperty(display, wnd, |
| 158 |
rdesktop_clipboard_target_atom, |
| 159 |
0L, 4096L, False, AnyPropertyType, |
| 160 |
&type_return, |
| 161 |
&format, &nitems, &bytes_left, &data); |
| 162 |
|
| 163 |
if (Success != res) |
| 164 |
{ |
| 165 |
DEBUG_CLIPBOARD(("XGetWindowProperty failed!\n")); |
| 166 |
cliprdr_send_empty_datapacket(); |
| 167 |
return; |
| 168 |
} |
| 169 |
|
| 170 |
if (None == type_return) |
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/* The owner might no support TARGETS. Just try |
| 172 |
STRING */ |
| 173 |
best_target = XA_STRING; |
| 174 |
else |
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{ |
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/* FIXME: We should choose format here based |
| 177 |
on what the server wanted */ |
| 178 |
supported_targets = (Atom *)data; |
| 179 |
for (i=0;i<nitems;i++) |
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{ |
| 181 |
DEBUG_CLIPBOARD(("Target %d: %s\n", |
| 182 |
i, XGetAtomName(display, |
| 183 |
supported_targets[i]))); |
| 184 |
} |
| 185 |
best_target = XInternAtom(display, "TEXT", False); |
| 186 |
|
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|
| 188 |
} |
| 189 |
|
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XConvertSelection(display, primary_atom, |
| 191 |
best_target, |
| 192 |
rdesktop_clipboard_target_atom, |
| 193 |
wnd, event->time); |
| 194 |
|
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} |
| 196 |
else /* Other clipboard data */ |
| 197 |
{ |
| 198 |
|
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res = XGetWindowProperty(display, wnd, |
| 200 |
rdesktop_clipboard_target_atom, |
| 201 |
0L, 0x1FFFFFF, |
| 202 |
True, AnyPropertyType, |
| 203 |
&type_return, |
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&format, &nitems, &bytes_left, &data); |
| 205 |
|
| 206 |
|
| 207 |
/* FIXME: We need to handle INCR as well, |
| 208 |
this is a temporary solution. */ |
| 209 |
|
| 210 |
if (incr_atom == type_return) |
| 211 |
{ |
| 212 |
warning("We don't support INCR transfers at this time. Try cutting less data\n"); |
| 213 |
cliprdr_send_empty_datapacket(); |
| 214 |
} |
| 215 |
|
| 216 |
|
| 217 |
if (Success != res) |
| 218 |
{ |
| 219 |
DEBUG_CLIPBOARD(("XGetWindowProperty failed!\n")); |
| 220 |
cliprdr_send_empty_datapacket(); |
| 221 |
return; |
| 222 |
} |
| 223 |
|
| 224 |
DEBUG_CLIPBOARD(("Received %d bytes of clipboard data from X, there is %d remaining\n", |
| 225 |
nitems, bytes_left)); |
| 226 |
DEBUG_CLIPBOARD(("type_return is %s\n", |
| 227 |
XGetAtomName(display, type_return))); |
| 228 |
|
| 229 |
datap = data; |
| 230 |
|
| 231 |
if (nitems+1 <= MAX_CLIPRDR_STANDALONE_DATASIZE) |
| 232 |
{ |
| 233 |
out = sec_init(encryption ? SEC_ENCRYPT : 0, |
| 234 |
20+nitems+1); |
| 235 |
out_uint32_le(out, 12+nitems+1); |
| 236 |
out_uint32_le(out, 0x13); |
| 237 |
out_uint16_le(out, 5); |
| 238 |
out_uint16_le(out, 1); |
| 239 |
out_uint32_le(out, nitems+1); |
| 240 |
out_uint8p(out, datap, nitems+1); |
| 241 |
out_uint32_le(out, 0); |
| 242 |
s_mark_end(out); |
| 243 |
|
| 244 |
sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, |
| 245 |
clipboard_channelno); |
| 246 |
|
| 247 |
} |
| 248 |
else |
| 249 |
{ |
| 250 |
DEBUG_CLIPBOARD(("Sending %d bytes of data\n", |
| 251 |
16+MAX_CLIPRDR_STANDALONE_DATASIZE)); |
| 252 |
out = sec_init(encryption ? SEC_ENCRYPT : 0, |
| 253 |
16+MAX_CLIPRDR_STANDALONE_DATASIZE); |
| 254 |
out_uint32_le(out, nitems+12); |
| 255 |
out_uint32_le(out, 0x11); |
| 256 |
out_uint16_le(out, 5); |
| 257 |
out_uint16_le(out, 1); |
| 258 |
out_uint32_le(out, nitems); |
| 259 |
out_uint8p(out, datap, |
| 260 |
MAX_CLIPRDR_STANDALONE_DATASIZE); |
| 261 |
s_mark_end(out); |
| 262 |
|
| 263 |
sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, |
| 264 |
clipboard_channelno); |
| 265 |
|
| 266 |
bytes_left_to_transfer = nitems - MAX_CLIPRDR_STANDALONE_DATASIZE; |
| 267 |
datap+=MAX_CLIPRDR_STANDALONE_DATASIZE; |
| 268 |
|
| 269 |
while (bytes_left_to_transfer > MAX_CLIPRDR_STANDALONE_DATASIZE) |
| 270 |
{ |
| 271 |
DEBUG_CLIPBOARD(("Sending %d bytes of data\n", |
| 272 |
16+MAX_CLIPRDR_CONTINUATION_DATASIZE)); |
| 273 |
out = sec_init(encryption ? SEC_ENCRYPT : 0, |
| 274 |
8+MAX_CLIPRDR_CONTINUATION_DATASIZE); |
| 275 |
out_uint32_le(out, nitems); |
| 276 |
out_uint32_le(out, 0x10); |
| 277 |
out_uint8p(out, datap, |
| 278 |
MAX_CLIPRDR_CONTINUATION_DATASIZE); |
| 279 |
s_mark_end(out); |
| 280 |
|
| 281 |
sec_send_to_channel(out, |
| 282 |
encryption ? SEC_ENCRYPT : 0, |
| 283 |
clipboard_channelno); |
| 284 |
bytes_left_to_transfer-= MAX_CLIPRDR_CONTINUATION_DATASIZE; |
| 285 |
datap+=MAX_CLIPRDR_CONTINUATION_DATASIZE; |
| 286 |
|
| 287 |
} |
| 288 |
DEBUG_CLIPBOARD(("Sending %d bytes of data\n", |
| 289 |
12+bytes_left_to_transfer)); |
| 290 |
out = sec_init(encryption ? SEC_ENCRYPT : 0, |
| 291 |
12+bytes_left_to_transfer); |
| 292 |
out_uint32_le(out, nitems); |
| 293 |
out_uint32_le(out, 0x12); |
| 294 |
out_uint8p(out, datap, |
| 295 |
bytes_left_to_transfer); |
| 296 |
out_uint32_le(out, 0x0); |
| 297 |
s_mark_end(out); |
| 298 |
|
| 299 |
sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, |
| 300 |
clipboard_channelno); |
| 301 |
|
| 302 |
} |
| 303 |
|
| 304 |
|
| 305 |
XFree(data); |
| 306 |
cliprdr_send_format_announce(); |
| 307 |
|
| 308 |
} |
| 309 |
|
| 310 |
|
| 311 |
} |
| 312 |
|
| 313 |
void |
| 314 |
cliprdr_handle_SelectionClear(void) |
| 315 |
{ |
| 316 |
DEBUG_CLIPBOARD(("cliprdr_handle_SelectionClear\n")); |
| 317 |
cliprdr_send_format_announce(); |
| 318 |
} |
| 319 |
|
| 320 |
|
| 321 |
static void |
| 322 |
cliprdr_request_clipboard_data(uint32 formatcode) |
| 323 |
{ |
| 324 |
STREAM s; |
| 325 |
s = sec_init(encryption ? SEC_ENCRYPT : 0, 24); |
| 326 |
out_uint32_le(s, 16); |
| 327 |
out_uint32_le(s, 0x13); |
| 328 |
out_uint16_le(s, 4); |
| 329 |
out_uint16_le(s, 0); |
| 330 |
out_uint32_le(s, 4); // Remaining length |
| 331 |
out_uint32_le(s, formatcode); |
| 332 |
out_uint32_le(s, 0); // Unknown. Garbage pad? |
| 333 |
|
| 334 |
s_mark_end(s); |
| 335 |
|
| 336 |
sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, |
| 337 |
clipboard_channelno); |
| 338 |
} |
| 339 |
|
| 340 |
|
| 341 |
void |
| 342 |
cliprdr_handle_SelectionRequest(XSelectionRequestEvent *xevent) |
| 343 |
{ |
| 344 |
|
| 345 |
XSelectionEvent xev; |
| 346 |
DEBUG_CLIPBOARD(("cliprdr_handle_SelectionRequest\n")); |
| 347 |
DEBUG_CLIPBOARD(("Requestor window id 0x%x ", |
| 348 |
(unsigned)xevent->requestor)); |
| 349 |
if (clipboard_atom == xevent->selection) { |
| 350 |
DEBUG_CLIPBOARD(("wants CLIPBOARD\n")); |
| 351 |
} |
| 352 |
if (primary_atom == xevent->selection) { |
| 353 |
DEBUG_CLIPBOARD(("wants PRIMARY\n")); |
| 354 |
} |
| 355 |
DEBUG_CLIPBOARD(("Target is %s (0x%x), property is %s (0x%x)\n", |
| 356 |
XGetAtomName(display, xevent->target), |
| 357 |
(unsigned)xevent->target, |
| 358 |
XGetAtomName(display, xevent->property), |
| 359 |
(unsigned)xevent->property)); |
| 360 |
|
| 361 |
xev.type = SelectionNotify; |
| 362 |
xev.serial = 0; |
| 363 |
xev.send_event = True; |
| 364 |
xev.requestor = xevent->requestor; |
| 365 |
xev.selection = xevent->selection; |
| 366 |
xev.target = xevent->target; |
| 367 |
xev.property = xevent->property; |
| 368 |
xev.time = xevent->time; |
| 369 |
|
| 370 |
if (targets_atom == xevent->target) |
| 371 |
{ |
| 372 |
DEBUG_CLIPBOARD(("TARGETS requested, sending list..\n")); |
| 373 |
XChangeProperty(display, |
| 374 |
xevent->requestor, |
| 375 |
xevent->property, |
| 376 |
XA_ATOM, |
| 377 |
32, |
| 378 |
PropModeAppend, |
| 379 |
(unsigned char *)&targets, |
| 380 |
NUM_TARGETS); |
| 381 |
|
| 382 |
XSendEvent(display, |
| 383 |
xevent->requestor, |
| 384 |
False, |
| 385 |
NoEventMask, |
| 386 |
(XEvent *)&xev); |
| 387 |
return; |
| 388 |
} else if (timestamp_atom == xevent->target) |
| 389 |
{ |
| 390 |
XChangeProperty(display, |
| 391 |
xevent->requestor, |
| 392 |
xevent->property, |
| 393 |
XA_INTEGER, |
| 394 |
32, |
| 395 |
PropModeAppend, |
| 396 |
(unsigned char *)&last_gesturetime, |
| 397 |
1); |
| 398 |
XSendEvent(display, |
| 399 |
xevent->requestor, |
| 400 |
False, |
| 401 |
NoEventMask, |
| 402 |
(XEvent *)&xev); |
| 403 |
} else /* Some other target */ |
| 404 |
{ |
| 405 |
cliprdr_request_clipboard_data(CF_TEXT); |
| 406 |
memcpy(&selection_event, &xev, sizeof(xev)); |
| 407 |
/* Return and wait for data, handled by |
| 408 |
cliprdr_handle_server_data */ |
| 409 |
} |
| 410 |
} |
| 411 |
|
| 412 |
|
| 413 |
static void |
| 414 |
cliprdr_ack_format_list(void) |
| 415 |
{ |
| 416 |
STREAM s; |
| 417 |
s = sec_init(encryption ? SEC_ENCRYPT : 0, 20); |
| 418 |
out_uint32_le(s, 12); |
| 419 |
out_uint32_le(s, 0x13); |
| 420 |
out_uint16_le(s, 3); |
| 421 |
out_uint16_le(s, 1); |
| 422 |
out_uint32_le(s, 0); |
| 423 |
out_uint32_le(s, 0x0000c0da); |
| 424 |
|
| 425 |
s_mark_end(s); |
| 426 |
|
| 427 |
sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, |
| 428 |
clipboard_channelno); |
| 429 |
} |
| 430 |
|
| 431 |
|
| 432 |
|
| 433 |
|
| 434 |
|
| 435 |
static void |
| 436 |
cliprdr_register_server_formats(STREAM s) |
| 437 |
{ |
| 438 |
uint32 remaining_length, pad; |
| 439 |
uint16 num_formats; |
| 440 |
cliprdr_dataformat *this, *next; |
| 441 |
|
| 442 |
DEBUG_CLIPBOARD(("cliprdr_register_server_formats\n")); |
| 443 |
in_uint32_le(s, remaining_length); |
| 444 |
|
| 445 |
num_formats = remaining_length / 36; |
| 446 |
if (NULL != server_formats) { |
| 447 |
this = server_formats; |
| 448 |
next = this->next; |
| 449 |
while (NULL != next) { |
| 450 |
xfree(this); |
| 451 |
this = NULL; |
| 452 |
this = next; |
| 453 |
next = this->next; |
| 454 |
} |
| 455 |
} |
| 456 |
this = xmalloc(sizeof(cliprdr_dataformat)); |
| 457 |
this->next = NULL; |
| 458 |
server_formats = this; |
| 459 |
num_server_formats = num_formats; |
| 460 |
while (1 < num_formats) { |
| 461 |
in_uint32_le(s, this->identifier); |
| 462 |
in_uint8a(s, this->textual_description, 32); |
| 463 |
DEBUG_CLIPBOARD(("Stored format description with numeric id %d\n", |
| 464 |
this->identifier)); |
| 465 |
this-> next = xmalloc(sizeof(cliprdr_dataformat)); |
| 466 |
this = this->next; |
| 467 |
num_formats--; |
| 468 |
} |
| 469 |
in_uint32_le(s, this->identifier); |
| 470 |
DEBUG_CLIPBOARD(("Stored format description with numeric id %d\n", this->identifier)); |
| 471 |
in_uint8a(s, this->textual_description, 32); |
| 472 |
this -> next = NULL; |
| 473 |
in_uint32_le(s, pad); |
| 474 |
cliprdr_print_server_formats(); |
| 475 |
} |
| 476 |
|
| 477 |
static void |
| 478 |
cliprdr_select_X_clipboards(void) |
| 479 |
{ |
| 480 |
XSetSelectionOwner(display, primary_atom, wnd, last_gesturetime); |
| 481 |
if (wnd != XGetSelectionOwner(display, primary_atom)) |
| 482 |
{ |
| 483 |
warning("Failed to aquire ownership of PRIMARY clipboard\n"); |
| 484 |
} |
| 485 |
XSetSelectionOwner(display, clipboard_atom, wnd, last_gesturetime); |
| 486 |
if (wnd != XGetSelectionOwner(display, clipboard_atom)) |
| 487 |
{ |
| 488 |
warning("Failed to aquire ownership of CLIPBOARD clipboard\n"); |
| 489 |
} |
| 490 |
|
| 491 |
} |
| 492 |
|
| 493 |
|
| 494 |
|
| 495 |
|
| 496 |
|
| 497 |
static void |
| 498 |
cliprdr_handle_first_handshake(STREAM s) |
| 499 |
{ |
| 500 |
uint32 remaining_length, pad; |
| 501 |
in_uint32_le(s, remaining_length); |
| 502 |
in_uint32_le(s, pad); |
| 503 |
DEBUG_CLIPBOARD(("Remaining length in first handshake frm server is %d, pad is %d\n", |
| 504 |
remaining_length, pad)); |
| 505 |
cliprdr_send_format_announce(); |
| 506 |
} |
| 507 |
|
| 508 |
void cliprdr_handle_server_data(uint32 length, STREAM s) |
| 509 |
{ |
| 510 |
uint32 remaining_length; |
| 511 |
char *data; |
| 512 |
in_uint32_le(s, remaining_length); |
| 513 |
data = s->p; |
| 514 |
XChangeProperty(display, |
| 515 |
selection_event.requestor, |
| 516 |
selection_event.property, |
| 517 |
XInternAtom(display, "STRING", False), |
| 518 |
8, |
| 519 |
PropModeAppend, |
| 520 |
data, |
| 521 |
remaining_length); |
| 522 |
|
| 523 |
XSendEvent(display, |
| 524 |
selection_event.requestor, |
| 525 |
False, |
| 526 |
NoEventMask, |
| 527 |
(XEvent *)&selection_event); |
| 528 |
|
| 529 |
|
| 530 |
} |
| 531 |
|
| 532 |
void cliprdr_handle_server_data_request(STREAM s) |
| 533 |
{ |
| 534 |
Window selectionowner; |
| 535 |
uint32 remaining_length; |
| 536 |
uint32 wanted_formatcode, pad; |
| 537 |
|
| 538 |
in_uint32_le(s, remaining_length); |
| 539 |
in_uint32_le(s, wanted_formatcode); |
| 540 |
in_uint32_le(s, pad); |
| 541 |
|
| 542 |
/* FIXME: Check that we support this formatcode */ |
| 543 |
|
| 544 |
DEBUG_CLIPBOARD(("Request from server for format %d\n", |
| 545 |
wanted_formatcode)); |
| 546 |
|
| 547 |
selectionowner = XGetSelectionOwner(display, primary_atom); |
| 548 |
|
| 549 |
if (None != selectionowner) |
| 550 |
{ |
| 551 |
|
| 552 |
/* FIXME: Perhaps we should check if we are the owner? */ |
| 553 |
|
| 554 |
XConvertSelection(display, primary_atom, |
| 555 |
targets_atom, |
| 556 |
rdesktop_clipboard_target_atom, |
| 557 |
wnd, CurrentTime); |
| 558 |
|
| 559 |
/* The rest of the transfer is handled in |
| 560 |
cliprdr_handle_SelectionNotify */ |
| 561 |
|
| 562 |
} else |
| 563 |
{ |
| 564 |
DEBUG_CLIPBOARD(("There were no owner for PRIMARY, sending empty string\n")); // FIXME: Should we always send an empty string? |
| 565 |
|
| 566 |
cliprdr_send_empty_datapacket(); |
| 567 |
} |
| 568 |
|
| 569 |
|
| 570 |
} |
| 571 |
|
| 572 |
|
| 573 |
void cliprdr_callback(STREAM s, uint16 channelno) |
| 574 |
{ |
| 575 |
static int failed_clipboard_acks = 0; |
| 576 |
struct timeval timeval; |
| 577 |
uint32 length, flags; |
| 578 |
uint16 ptype0, ptype1; |
| 579 |
clipboard_channelno = channelno; |
| 580 |
DEBUG_CLIPBOARD(("cliprdr_callback called with channelno %d, clipboard data:\n", channelno)); |
| 581 |
#ifdef WITH_DEBUG_CLIPBOARD |
| 582 |
hexdump(s->p, s->end - s->p); |
| 583 |
#endif |
| 584 |
in_uint32_le(s, length); |
| 585 |
in_uint32_le(s, flags); |
| 586 |
|
| 587 |
DEBUG_CLIPBOARD(("length is %d, flags are %d\n", length, flags)); |
| 588 |
|
| 589 |
if (flags & 0x03 || flags & 0x01) /* Single-write op or first-packet-of-several op */ |
| 590 |
{ |
| 591 |
in_uint16_le(s, ptype0); |
| 592 |
in_uint16_le(s, ptype1); |
| 593 |
DEBUG_CLIPBOARD(("ptype0 is %d, ptype1 is %d\n", ptype0, ptype1)); |
| 594 |
if (1 == ptype0 && 0 == ptype1) { |
| 595 |
cliprdr_handle_first_handshake(s); |
| 596 |
return; |
| 597 |
} else if (3 == ptype0 && 1 == ptype1) |
| 598 |
{ |
| 599 |
// Acknowledgment on our format announce. Do we care? Not right now. |
| 600 |
// There is a strange pad in this packet that we might need some time, |
| 601 |
// but probably not. |
| 602 |
DEBUG_CLIPBOARD(("Received format announce ACK\n")); |
| 603 |
failed_clipboard_acks = 0; |
| 604 |
return; |
| 605 |
|
| 606 |
} else if (3 == ptype0 && 2 == ptype1) |
| 607 |
{ |
| 608 |
DEBUG_CLIPBOARD(("Received failed clipboard format announce ACK, retrying\n")); |
| 609 |
|
| 610 |
/* This is a fairly portable way to sleep 1/10 of |
| 611 |
a second.. */ |
| 612 |
timeval.tv_sec = 0; |
| 613 |
timeval.tv_usec = 100; |
| 614 |
select(0, NULL, NULL, NULL, &timeval); |
| 615 |
if (failed_clipboard_acks < 3) |
| 616 |
{ |
| 617 |
|
| 618 |
cliprdr_send_format_announce(); |
| 619 |
/* Make sure we don't get stuck in this loop */ |
| 620 |
failed_clipboard_acks++; |
| 621 |
} |
| 622 |
else |
| 623 |
{ |
| 624 |
warning("Reached maximum number of clipboard format announce attempts. Pasting in Windows probably won't work well now.\n"); |
| 625 |
} |
| 626 |
} else if (2 == ptype0 && 0 == ptype1) |
| 627 |
{ |
| 628 |
cliprdr_register_server_formats(s); |
| 629 |
cliprdr_select_X_clipboards(); |
| 630 |
cliprdr_ack_format_list(); |
| 631 |
return; |
| 632 |
} else if (5 == ptype0 && 1 == ptype1) |
| 633 |
{ |
| 634 |
cliprdr_handle_server_data(length, s); |
| 635 |
} else if (4 == ptype0 && 0 == ptype1) |
| 636 |
{ |
| 637 |
cliprdr_handle_server_data_request(s); |
| 638 |
} |
| 639 |
|
| 640 |
|
| 641 |
} |
| 642 |
} |
| 643 |
|
| 644 |
|
| 645 |
void cliprdr_init(void) |
| 646 |
{ |
| 647 |
primary_atom = XInternAtom(display, "PRIMARY", False); |
| 648 |
clipboard_atom = XInternAtom(display, "CLIPBOARD", False); |
| 649 |
targets_atom = XInternAtom(display, "TARGETS", False); |
| 650 |
timestamp_atom = XInternAtom(display, "TIMESTAMP", False); |
| 651 |
rdesktop_clipboard_target_atom = XInternAtom(display, "_RDESKTOP_CLIPBOARD_TARGET", False); |
| 652 |
incr_atom = XInternAtom(display, "INCR", False); |
| 653 |
targets[0] = targets_atom; |
| 654 |
targets[1] = XInternAtom(display, "TEXT", False); |
| 655 |
targets[2] = XInternAtom(display, "UTF8_STRING", False); |
| 656 |
targets[3] = XInternAtom(display, "text/unicode", False); |
| 657 |
targets[4] = XInternAtom(display, "TIMESTAMP", False); |
| 658 |
targets[5] = XInternAtom(display, "STRING", False); |
| 659 |
|
| 660 |
} |
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