| 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 |
extern Atom ipc_atom; |
| 30 |
|
| 31 |
// static Time selection_timestamp; |
| 32 |
static Atom clipboard_atom, primary_atom, targets_atom, timestamp_atom; |
| 33 |
static Atom rdesktop_clipboard_target_atom, incr_atom; |
| 34 |
static cliprdr_dataformat *server_formats = NULL; |
| 35 |
static uint16 num_server_formats = 0; |
| 36 |
static XSelectionEvent selection_event; |
| 37 |
static uint16 clipboard_channelno; |
| 38 |
static Atom targets[NUM_TARGETS]; |
| 39 |
static int have_primary = 0; |
| 40 |
static int rdesktop_is_selection_owner = 0; |
| 41 |
|
| 42 |
static void |
| 43 |
cliprdr_print_server_formats(void) |
| 44 |
{ |
| 45 |
#ifdef WITH_DEBUG_CLIPBOARD |
| 46 |
cliprdr_dataformat *this; |
| 47 |
uint16 i = 0; |
| 48 |
this = server_formats; |
| 49 |
DEBUG_CLIPBOARD(("There should be %d server formats.\n", num_server_formats)); |
| 50 |
while (NULL != this) |
| 51 |
{ |
| 52 |
DEBUG_CLIPBOARD(("Format code %d\n", this->identifier)); |
| 53 |
i++; |
| 54 |
this = this->next; |
| 55 |
} |
| 56 |
DEBUG_CLIPBOARD(("There were %d server formats.\n", i)); |
| 57 |
#endif |
| 58 |
} |
| 59 |
/* |
| 60 |
static void |
| 61 |
cliprdr_set_selection_timestamp(void) |
| 62 |
{ |
| 63 |
XEvent xev; |
| 64 |
DEBUG_CLIPBOARD(("Changing a property in order to get a timestamp\n")); |
| 65 |
fflush(stdout); |
| 66 |
XChangeProperty(display, wnd, rdesktop_clipboard_target_atom, |
| 67 |
XA_ATOM, 32, PropModeAppend, 0, 0); |
| 68 |
DEBUG_CLIPBOARD(("Waiting for PropertyChange on wnd\n")); |
| 69 |
fflush(stdout); |
| 70 |
XWindowEvent(display, wnd, |
| 71 |
PropertyChangeMask, &xev); |
| 72 |
DEBUG_CLIPBOARD(("Setting selection_timestamp\n")); |
| 73 |
fflush(stdout); |
| 74 |
selection_timestamp = xev.xproperty.time; |
| 75 |
} |
| 76 |
*/ |
| 77 |
|
| 78 |
static void |
| 79 |
cliprdr_send_format_announce(void) |
| 80 |
{ |
| 81 |
DEBUG_CLIPBOARD(("Sending (empty) format announce\n")); |
| 82 |
|
| 83 |
STREAM s; |
| 84 |
int number_of_formats = 1; |
| 85 |
s = sec_init(encryption ? SEC_ENCRYPT : 0, number_of_formats*36+12+4+4); |
| 86 |
out_uint32_le(s, number_of_formats*36+12); |
| 87 |
out_uint32_le(s, 0x13); |
| 88 |
out_uint16_le(s, 2); |
| 89 |
out_uint16_le(s, 0); |
| 90 |
out_uint32_le(s, number_of_formats*36); |
| 91 |
|
| 92 |
// out_uint32_le(s, 0xd); // FIXME: This is a rather bogus unicode text description.. |
| 93 |
// rdp_out_unistr(s, "", 16); |
| 94 |
// out_uint8s(s, 32); |
| 95 |
|
| 96 |
|
| 97 |
out_uint32_le(s, 1); // FIXME: This is a rather bogus text description.. |
| 98 |
out_uint8s(s, 32); |
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|
| 100 |
out_uint32_le(s, 0); |
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|
| 102 |
s_mark_end(s); |
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sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, |
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clipboard_channelno); |
| 105 |
} |
| 106 |
|
| 107 |
void cliprdr_ipc_format_announce(unsigned char *data, uint16 length) |
| 108 |
{ |
| 109 |
STREAM s; |
| 110 |
rdesktop_is_selection_owner = 1; |
| 111 |
DEBUG_CLIPBOARD(("cliprdr_ipc_format_announce called, length is %d, data is %s, sending native format announce\n", length, data)); |
| 112 |
|
| 113 |
s = sec_init(encryption ? SEC_ENCRYPT : 0, length+12+4+4); |
| 114 |
out_uint32_le(s, length+12); |
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out_uint32_le(s, 0x13); |
| 116 |
out_uint16_le(s, 2); |
| 117 |
out_uint16_le(s, 0); |
| 118 |
out_uint32_le(s, length); |
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out_uint8p(s, data, length); |
| 120 |
out_uint32_le(s, 0); // Pad |
| 121 |
s_mark_end(s); |
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|
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sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, |
| 124 |
clipboard_channelno); |
| 125 |
} |
| 126 |
|
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|
| 128 |
|
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|
| 130 |
static void |
| 131 |
cliprdr_send_empty_datapacket(void) |
| 132 |
{ |
| 133 |
STREAM out; |
| 134 |
out = sec_init(encryption ? SEC_ENCRYPT : 0, |
| 135 |
20); |
| 136 |
out_uint32_le(out, 12); |
| 137 |
out_uint32_le(out, 0x13); |
| 138 |
out_uint16_le(out, 5); |
| 139 |
out_uint16_le(out, 1); |
| 140 |
out_uint32_le(out, 0); |
| 141 |
/* Insert null string here? */ |
| 142 |
out_uint32_le(out, 0); |
| 143 |
s_mark_end(out); |
| 144 |
|
| 145 |
sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, |
| 146 |
clipboard_channelno); |
| 147 |
} |
| 148 |
|
| 149 |
|
| 150 |
void |
| 151 |
cliprdr_handle_SelectionNotify(XSelectionEvent *event) |
| 152 |
{ |
| 153 |
|
| 154 |
unsigned char *data, *datap; |
| 155 |
unsigned long nitems, bytes_left; |
| 156 |
|
| 157 |
unsigned long bytes_left_to_transfer; |
| 158 |
int res, i; |
| 159 |
|
| 160 |
int format; |
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Atom type_return; |
| 162 |
Atom best_target; |
| 163 |
Atom *supported_targets; |
| 164 |
|
| 165 |
STREAM out; |
| 166 |
|
| 167 |
DEBUG_CLIPBOARD(("cliprdr_handle_SelectionNotify\n")); |
| 168 |
|
| 169 |
if (None == event->property) { |
| 170 |
cliprdr_send_empty_datapacket(); |
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return; /* Selection failed */ |
| 172 |
} |
| 173 |
|
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DEBUG_CLIPBOARD(("selection: %s, target: %s, property: %s\n", |
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XGetAtomName(display, event->selection), |
| 176 |
XGetAtomName(display, event->target), |
| 177 |
XGetAtomName(display, event->property))); |
| 178 |
|
| 179 |
if (targets_atom == event->target) { |
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/* Response to TARGETS request. Let's find the target |
| 181 |
we want and request that */ |
| 182 |
res = XGetWindowProperty(display, wnd, |
| 183 |
rdesktop_clipboard_target_atom, |
| 184 |
0L, 4096L, False, AnyPropertyType, |
| 185 |
&type_return, |
| 186 |
&format, &nitems, &bytes_left, &data); |
| 187 |
|
| 188 |
if (Success != res) |
| 189 |
{ |
| 190 |
DEBUG_CLIPBOARD(("XGetWindowProperty failed!\n")); |
| 191 |
cliprdr_send_empty_datapacket(); |
| 192 |
return; |
| 193 |
} |
| 194 |
|
| 195 |
if (None == type_return) |
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/* The owner might no support TARGETS. Just try |
| 197 |
STRING */ |
| 198 |
best_target = XA_STRING; |
| 199 |
else |
| 200 |
{ |
| 201 |
/* FIXME: We should choose format here based |
| 202 |
on what the server wanted */ |
| 203 |
supported_targets = (Atom *)data; |
| 204 |
for (i=0;i<nitems;i++) |
| 205 |
{ |
| 206 |
DEBUG_CLIPBOARD(("Target %d: %s\n", |
| 207 |
i, XGetAtomName(display, |
| 208 |
supported_targets[i]))); |
| 209 |
} |
| 210 |
best_target = XInternAtom(display, "TEXT", False); |
| 211 |
|
| 212 |
|
| 213 |
} |
| 214 |
|
| 215 |
XConvertSelection(display, primary_atom, |
| 216 |
best_target, |
| 217 |
rdesktop_clipboard_target_atom, |
| 218 |
wnd, event->time); |
| 219 |
|
| 220 |
} |
| 221 |
|
| 222 |
else /* Other clipboard data */ |
| 223 |
{ |
| 224 |
|
| 225 |
res = XGetWindowProperty(display, wnd, |
| 226 |
rdesktop_clipboard_target_atom, |
| 227 |
0L, 0x1FFFFFF, |
| 228 |
True, AnyPropertyType, |
| 229 |
&type_return, |
| 230 |
&format, &nitems, &bytes_left, &data); |
| 231 |
|
| 232 |
|
| 233 |
/* FIXME: We need to handle INCR as well, |
| 234 |
this is a temporary solution. */ |
| 235 |
|
| 236 |
if (incr_atom == type_return) |
| 237 |
{ |
| 238 |
warning("We don't support INCR transfers at this time. Try cutting less data\n"); |
| 239 |
cliprdr_send_empty_datapacket(); |
| 240 |
} |
| 241 |
|
| 242 |
|
| 243 |
if (Success != res) |
| 244 |
{ |
| 245 |
DEBUG_CLIPBOARD(("XGetWindowProperty failed!\n")); |
| 246 |
cliprdr_send_empty_datapacket(); |
| 247 |
return; |
| 248 |
} |
| 249 |
|
| 250 |
DEBUG_CLIPBOARD(("Received %d bytes of clipboard data from X, there is %d remaining\n", |
| 251 |
nitems, bytes_left)); |
| 252 |
DEBUG_CLIPBOARD(("type_return is %s\n", |
| 253 |
XGetAtomName(display, type_return))); |
| 254 |
|
| 255 |
datap = data; |
| 256 |
|
| 257 |
if (nitems+1 <= MAX_CLIPRDR_STANDALONE_DATASIZE) |
| 258 |
{ |
| 259 |
out = sec_init(encryption ? SEC_ENCRYPT : 0, |
| 260 |
20+nitems+1); |
| 261 |
out_uint32_le(out, 12+nitems+1); |
| 262 |
out_uint32_le(out, 0x13); |
| 263 |
out_uint16_le(out, 5); |
| 264 |
out_uint16_le(out, 1); |
| 265 |
out_uint32_le(out, nitems+1); |
| 266 |
out_uint8p(out, datap, nitems+1); |
| 267 |
out_uint32_le(out, 0); |
| 268 |
s_mark_end(out); |
| 269 |
|
| 270 |
sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, |
| 271 |
clipboard_channelno); |
| 272 |
|
| 273 |
} |
| 274 |
else |
| 275 |
{ |
| 276 |
DEBUG_CLIPBOARD(("Sending %d bytes of data\n", |
| 277 |
16+MAX_CLIPRDR_STANDALONE_DATASIZE)); |
| 278 |
out = sec_init(encryption ? SEC_ENCRYPT : 0, |
| 279 |
16+MAX_CLIPRDR_STANDALONE_DATASIZE); |
| 280 |
out_uint32_le(out, nitems+12); |
| 281 |
out_uint32_le(out, 0x11); |
| 282 |
out_uint16_le(out, 5); |
| 283 |
out_uint16_le(out, 1); |
| 284 |
out_uint32_le(out, nitems); |
| 285 |
out_uint8p(out, datap, |
| 286 |
MAX_CLIPRDR_STANDALONE_DATASIZE); |
| 287 |
s_mark_end(out); |
| 288 |
|
| 289 |
sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, |
| 290 |
clipboard_channelno); |
| 291 |
|
| 292 |
bytes_left_to_transfer = nitems - MAX_CLIPRDR_STANDALONE_DATASIZE; |
| 293 |
datap+=MAX_CLIPRDR_STANDALONE_DATASIZE; |
| 294 |
|
| 295 |
while (bytes_left_to_transfer > MAX_CLIPRDR_STANDALONE_DATASIZE) |
| 296 |
{ |
| 297 |
DEBUG_CLIPBOARD(("Sending %d bytes of data\n", |
| 298 |
16+MAX_CLIPRDR_CONTINUATION_DATASIZE)); |
| 299 |
out = sec_init(encryption ? SEC_ENCRYPT : 0, |
| 300 |
8+MAX_CLIPRDR_CONTINUATION_DATASIZE); |
| 301 |
out_uint32_le(out, nitems); |
| 302 |
out_uint32_le(out, 0x10); |
| 303 |
out_uint8p(out, datap, |
| 304 |
MAX_CLIPRDR_CONTINUATION_DATASIZE); |
| 305 |
s_mark_end(out); |
| 306 |
|
| 307 |
sec_send_to_channel(out, |
| 308 |
encryption ? SEC_ENCRYPT : 0, |
| 309 |
clipboard_channelno); |
| 310 |
bytes_left_to_transfer-= MAX_CLIPRDR_CONTINUATION_DATASIZE; |
| 311 |
datap+=MAX_CLIPRDR_CONTINUATION_DATASIZE; |
| 312 |
|
| 313 |
} |
| 314 |
DEBUG_CLIPBOARD(("Sending %d bytes of data\n", |
| 315 |
12+bytes_left_to_transfer)); |
| 316 |
out = sec_init(encryption ? SEC_ENCRYPT : 0, |
| 317 |
12+bytes_left_to_transfer); |
| 318 |
out_uint32_le(out, nitems); |
| 319 |
out_uint32_le(out, 0x12); |
| 320 |
out_uint8p(out, datap, |
| 321 |
bytes_left_to_transfer); |
| 322 |
out_uint32_le(out, 0x0); |
| 323 |
s_mark_end(out); |
| 324 |
|
| 325 |
sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, |
| 326 |
clipboard_channelno); |
| 327 |
|
| 328 |
} |
| 329 |
|
| 330 |
|
| 331 |
XFree(data); |
| 332 |
if (!rdesktop_clipboard_target_atom) |
| 333 |
cliprdr_send_format_announce(); |
| 334 |
|
| 335 |
} |
| 336 |
|
| 337 |
|
| 338 |
} |
| 339 |
|
| 340 |
void |
| 341 |
cliprdr_handle_SelectionClear(void) |
| 342 |
{ |
| 343 |
DEBUG_CLIPBOARD(("cliprdr_handle_SelectionClear\n")); |
| 344 |
have_primary = 0; |
| 345 |
ipc_send_message(RDESKTOP_IPC_CLIPRDR_PRIMARY_LOST, |
| 346 |
"", 0); |
| 347 |
cliprdr_send_format_announce(); |
| 348 |
} |
| 349 |
|
| 350 |
|
| 351 |
static void |
| 352 |
cliprdr_request_clipboard_data(uint32 formatcode) |
| 353 |
{ |
| 354 |
STREAM s; |
| 355 |
s = sec_init(encryption ? SEC_ENCRYPT : 0, 24); |
| 356 |
out_uint32_le(s, 16); |
| 357 |
out_uint32_le(s, 0x13); |
| 358 |
out_uint16_le(s, 4); |
| 359 |
out_uint16_le(s, 0); |
| 360 |
out_uint32_le(s, 4); // Remaining length |
| 361 |
out_uint32_le(s, formatcode); |
| 362 |
out_uint32_le(s, 0); // Unknown. Garbage pad? |
| 363 |
|
| 364 |
s_mark_end(s); |
| 365 |
|
| 366 |
sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, |
| 367 |
clipboard_channelno); |
| 368 |
} |
| 369 |
|
| 370 |
|
| 371 |
void |
| 372 |
cliprdr_handle_SelectionRequest(XSelectionRequestEvent *xevent) |
| 373 |
{ |
| 374 |
|
| 375 |
XSelectionEvent xev; |
| 376 |
unsigned char *data; |
| 377 |
unsigned long nitems, bytes_left; |
| 378 |
Atom type_return; |
| 379 |
uint32 *wanted_formatcode; |
| 380 |
int format; |
| 381 |
|
| 382 |
DEBUG_CLIPBOARD(("cliprdr_handle_SelectionRequest\n")); |
| 383 |
DEBUG_CLIPBOARD(("Requestor window id 0x%x ", |
| 384 |
(unsigned)xevent->requestor)); |
| 385 |
if (clipboard_atom == xevent->selection) { |
| 386 |
DEBUG_CLIPBOARD(("wants CLIPBOARD\n")); |
| 387 |
} |
| 388 |
if (primary_atom == xevent->selection) { |
| 389 |
DEBUG_CLIPBOARD(("wants PRIMARY\n")); |
| 390 |
} |
| 391 |
DEBUG_CLIPBOARD(("Target is %s (0x%x), property is %s (0x%x)\n", |
| 392 |
XGetAtomName(display, xevent->target), |
| 393 |
(unsigned)xevent->target, |
| 394 |
XGetAtomName(display, xevent->property), |
| 395 |
(unsigned)xevent->property)); |
| 396 |
|
| 397 |
xev.type = SelectionNotify; |
| 398 |
xev.serial = 0; |
| 399 |
xev.send_event = True; |
| 400 |
xev.requestor = xevent->requestor; |
| 401 |
xev.selection = xevent->selection; |
| 402 |
xev.target = xevent->target; |
| 403 |
xev.property = xevent->property; |
| 404 |
xev.time = xevent->time; |
| 405 |
|
| 406 |
memcpy(&selection_event, &xev, sizeof(xev)); |
| 407 |
|
| 408 |
if (ipc_atom == xevent->target) |
| 409 |
{ |
| 410 |
DEBUG_CLIPBOARD(("Target atom is ipc_atom, getting INTEGER from requestor\n")); |
| 411 |
XGetWindowProperty(display, xevent->requestor, |
| 412 |
rdesktop_clipboard_target_atom, |
| 413 |
0, |
| 414 |
1, |
| 415 |
True, XA_INTEGER, |
| 416 |
&type_return, |
| 417 |
&format, |
| 418 |
&nitems, |
| 419 |
&bytes_left, |
| 420 |
&wanted_formatcode); |
| 421 |
DEBUG_CLIPBOARD(("Got wanted formatcode %d, format is %d\n", *wanted_formatcode, format)); |
| 422 |
cliprdr_request_clipboard_data(*wanted_formatcode); |
| 423 |
} |
| 424 |
|
| 425 |
else if (targets_atom == xevent->target) |
| 426 |
{ |
| 427 |
DEBUG_CLIPBOARD(("TARGETS requested, sending list..\n")); |
| 428 |
XChangeProperty(display, |
| 429 |
xevent->requestor, |
| 430 |
xevent->property, |
| 431 |
XA_ATOM, |
| 432 |
32, |
| 433 |
PropModeAppend, |
| 434 |
(unsigned char *)&targets, |
| 435 |
NUM_TARGETS); |
| 436 |
|
| 437 |
XSendEvent(display, |
| 438 |
xevent->requestor, |
| 439 |
False, |
| 440 |
NoEventMask, |
| 441 |
(XEvent *)&xev); |
| 442 |
return; |
| 443 |
} else if (timestamp_atom == xevent->target) |
| 444 |
{ |
| 445 |
XChangeProperty(display, |
| 446 |
xevent->requestor, |
| 447 |
xevent->property, |
| 448 |
XA_INTEGER, |
| 449 |
32, |
| 450 |
PropModeAppend, |
| 451 |
(unsigned char *)&last_gesturetime, |
| 452 |
1); |
| 453 |
XSendEvent(display, |
| 454 |
xevent->requestor, |
| 455 |
False, |
| 456 |
NoEventMask, |
| 457 |
(XEvent *)&xev); |
| 458 |
} else /* Some other target */ |
| 459 |
{ |
| 460 |
cliprdr_request_clipboard_data(CF_TEXT); |
| 461 |
/* Return and wait for data, handled by |
| 462 |
cliprdr_handle_server_data */ |
| 463 |
} |
| 464 |
} |
| 465 |
|
| 466 |
|
| 467 |
static void |
| 468 |
cliprdr_ack_format_list(void) |
| 469 |
{ |
| 470 |
STREAM s; |
| 471 |
s = sec_init(encryption ? SEC_ENCRYPT : 0, 20); |
| 472 |
out_uint32_le(s, 12); |
| 473 |
out_uint32_le(s, 0x13); |
| 474 |
out_uint16_le(s, 3); |
| 475 |
out_uint16_le(s, 1); |
| 476 |
out_uint32_le(s, 0); |
| 477 |
out_uint32_le(s, 0x0000c0da); |
| 478 |
|
| 479 |
s_mark_end(s); |
| 480 |
|
| 481 |
sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, |
| 482 |
clipboard_channelno); |
| 483 |
} |
| 484 |
|
| 485 |
|
| 486 |
|
| 487 |
|
| 488 |
|
| 489 |
static void |
| 490 |
cliprdr_register_server_formats(STREAM s) |
| 491 |
{ |
| 492 |
uint32 remaining_length, pad; |
| 493 |
uint16 num_formats; |
| 494 |
cliprdr_dataformat *this, *next; |
| 495 |
|
| 496 |
in_uint32_le(s, remaining_length); |
| 497 |
DEBUG_CLIPBOARD(("cliprdr_register_server_formats, remaining_length is %d\n", remaining_length)); |
| 498 |
|
| 499 |
|
| 500 |
num_formats = remaining_length / 36; |
| 501 |
|
| 502 |
ipc_send_message(RDESKTOP_IPC_CLIPRDR_FORMAT_ANNOUNCE, |
| 503 |
s->p, remaining_length); |
| 504 |
if (NULL != server_formats) { |
| 505 |
this = server_formats; |
| 506 |
next = this->next; |
| 507 |
while (NULL != next) { |
| 508 |
xfree(this); |
| 509 |
this = NULL; |
| 510 |
this = next; |
| 511 |
next = this->next; |
| 512 |
} |
| 513 |
} |
| 514 |
this = xmalloc(sizeof(cliprdr_dataformat)); |
| 515 |
this->next = NULL; |
| 516 |
server_formats = this; |
| 517 |
num_server_formats = num_formats; |
| 518 |
while (1 < num_formats) { |
| 519 |
in_uint32_le(s, this->identifier); |
| 520 |
in_uint8a(s, this->textual_description, 32); |
| 521 |
DEBUG_CLIPBOARD(("Stored format description with numeric id %d\n", |
| 522 |
this->identifier)); |
| 523 |
this-> next = xmalloc(sizeof(cliprdr_dataformat)); |
| 524 |
this = this->next; |
| 525 |
num_formats--; |
| 526 |
} |
| 527 |
in_uint32_le(s, this->identifier); |
| 528 |
DEBUG_CLIPBOARD(("Stored format description with numeric id %d\n", this->identifier)); |
| 529 |
in_uint8a(s, this->textual_description, 32); |
| 530 |
this -> next = NULL; |
| 531 |
in_uint32_le(s, pad); |
| 532 |
cliprdr_print_server_formats(); |
| 533 |
} |
| 534 |
|
| 535 |
static void |
| 536 |
cliprdr_select_X_clipboards(void) |
| 537 |
{ |
| 538 |
XSetSelectionOwner(display, primary_atom, wnd, last_gesturetime); |
| 539 |
if (wnd != XGetSelectionOwner(display, primary_atom)) |
| 540 |
{ |
| 541 |
warning("Failed to aquire ownership of PRIMARY clipboard\n"); |
| 542 |
} |
| 543 |
else |
| 544 |
{ |
| 545 |
have_primary = 1; |
| 546 |
} |
| 547 |
XSetSelectionOwner(display, clipboard_atom, wnd, last_gesturetime); |
| 548 |
if (wnd != XGetSelectionOwner(display, clipboard_atom)) |
| 549 |
{ |
| 550 |
warning("Failed to aquire ownership of CLIPBOARD clipboard\n"); |
| 551 |
} |
| 552 |
|
| 553 |
} |
| 554 |
|
| 555 |
|
| 556 |
|
| 557 |
static void |
| 558 |
cliprdr_handle_first_handshake(STREAM s) |
| 559 |
{ |
| 560 |
uint32 remaining_length, pad; |
| 561 |
in_uint32_le(s, remaining_length); |
| 562 |
in_uint32_le(s, pad); |
| 563 |
DEBUG_CLIPBOARD(("Remaining length in first handshake frm server is %d, pad is %d\n", |
| 564 |
remaining_length, pad)); |
| 565 |
cliprdr_send_format_announce(); |
| 566 |
} |
| 567 |
|
| 568 |
void cliprdr_handle_server_data(uint32 length, uint32 flags, STREAM s) |
| 569 |
{ |
| 570 |
static uint32 remaining_length; |
| 571 |
static char *data, *datap; |
| 572 |
static uint32 bytes_left_to_read; |
| 573 |
DEBUG_CLIPBOARD(("In cliprdr_handle_server_data, flags is %d\n", |
| 574 |
flags)); |
| 575 |
if (3 == flags) /* One-op write, no packets follows */ |
| 576 |
{ |
| 577 |
in_uint32_le(s, remaining_length); |
| 578 |
data = s->p; |
| 579 |
} else if (1 == flags) /* First of several packets */ |
| 580 |
{ |
| 581 |
in_uint32_le(s, remaining_length); |
| 582 |
DEBUG_CLIPBOARD(("Remaining length is %d\n", |
| 583 |
remaining_length)); |
| 584 |
data = xmalloc(remaining_length); |
| 585 |
datap = data; |
| 586 |
DEBUG_CLIPBOARD(("Copying first %d bytes\n", |
| 587 |
MAX_CLIPRDR_STANDALONE_DATASIZE)); |
| 588 |
memcpy(datap, s->p, MAX_CLIPRDR_STANDALONE_DATASIZE); |
| 589 |
|
| 590 |
datap+=MAX_CLIPRDR_STANDALONE_DATASIZE; |
| 591 |
bytes_left_to_read = remaining_length-MAX_CLIPRDR_STANDALONE_DATASIZE; |
| 592 |
return; |
| 593 |
} else if (0 == flags) |
| 594 |
{ |
| 595 |
DEBUG_CLIPBOARD(("Copying %d middle bytes", |
| 596 |
MAX_CLIPRDR_CONTINUATION_DATASIZE)); |
| 597 |
memcpy(datap, s->p, MAX_CLIPRDR_CONTINUATION_DATASIZE); |
| 598 |
|
| 599 |
datap+=MAX_CLIPRDR_CONTINUATION_DATASIZE; |
| 600 |
bytes_left_to_read-=MAX_CLIPRDR_CONTINUATION_DATASIZE; |
| 601 |
return; |
| 602 |
} else if (2 == flags) |
| 603 |
{ |
| 604 |
DEBUG_CLIPBOARD(("Copying last %d bytes\n", |
| 605 |
bytes_left_to_read)); |
| 606 |
memcpy(datap, s->p, bytes_left_to_read); |
| 607 |
} |
| 608 |
XChangeProperty(display, |
| 609 |
selection_event.requestor, |
| 610 |
selection_event.property, |
| 611 |
XInternAtom(display, "STRING", False), |
| 612 |
8, |
| 613 |
PropModeAppend, |
| 614 |
data, |
| 615 |
remaining_length-1); |
| 616 |
|
| 617 |
XSendEvent(display, |
| 618 |
selection_event.requestor, |
| 619 |
False, |
| 620 |
NoEventMask, |
| 621 |
(XEvent *)&selection_event); |
| 622 |
|
| 623 |
if (2 == flags) |
| 624 |
xfree(data); |
| 625 |
|
| 626 |
} |
| 627 |
|
| 628 |
void cliprdr_handle_server_data_request(STREAM s) |
| 629 |
{ |
| 630 |
Window selectionowner; |
| 631 |
uint32 remaining_length; |
| 632 |
uint32 wanted_formatcode, pad; |
| 633 |
|
| 634 |
in_uint32_le(s, remaining_length); |
| 635 |
in_uint32_le(s, wanted_formatcode); |
| 636 |
in_uint32_le(s, pad); |
| 637 |
|
| 638 |
/* FIXME: Check that we support this formatcode */ |
| 639 |
|
| 640 |
DEBUG_CLIPBOARD(("Request from server for format %d\n", |
| 641 |
wanted_formatcode)); |
| 642 |
|
| 643 |
selectionowner = XGetSelectionOwner(display, primary_atom); |
| 644 |
|
| 645 |
if (rdesktop_is_selection_owner) |
| 646 |
{ |
| 647 |
XChangeProperty(display, wnd, rdesktop_clipboard_target_atom, |
| 648 |
XA_INTEGER, 32, PropModeReplace, |
| 649 |
(unsigned char *)&wanted_formatcode, 1); |
| 650 |
|
| 651 |
XConvertSelection(display, primary_atom, |
| 652 |
ipc_atom, |
| 653 |
rdesktop_clipboard_target_atom, |
| 654 |
wnd, CurrentTime); |
| 655 |
return; |
| 656 |
} |
| 657 |
|
| 658 |
|
| 659 |
if (None != selectionowner) |
| 660 |
{ |
| 661 |
|
| 662 |
/* FIXME: Perhaps we should check if we are the owner? */ |
| 663 |
|
| 664 |
XConvertSelection(display, primary_atom, |
| 665 |
targets_atom, |
| 666 |
rdesktop_clipboard_target_atom, |
| 667 |
wnd, CurrentTime); |
| 668 |
|
| 669 |
/* The rest of the transfer is handled in |
| 670 |
cliprdr_handle_SelectionNotify */ |
| 671 |
|
| 672 |
} else |
| 673 |
{ |
| 674 |
DEBUG_CLIPBOARD(("There were no owner for PRIMARY, sending empty string\n")); // FIXME: Should we always send an empty string? |
| 675 |
|
| 676 |
cliprdr_send_empty_datapacket(); |
| 677 |
} |
| 678 |
|
| 679 |
|
| 680 |
} |
| 681 |
|
| 682 |
|
| 683 |
void cliprdr_callback(STREAM s, uint16 channelno) |
| 684 |
{ |
| 685 |
static int failed_clipboard_acks = 0; |
| 686 |
struct timeval timeval; |
| 687 |
uint32 length, flags; |
| 688 |
uint16 ptype0, ptype1; |
| 689 |
clipboard_channelno = channelno; |
| 690 |
DEBUG_CLIPBOARD(("cliprdr_callback called with channelno %d, clipboard data:\n", channelno)); |
| 691 |
#ifdef WITH_DEBUG_CLIPBOARD |
| 692 |
// hexdump(s->p, s->end - s->p); |
| 693 |
#endif |
| 694 |
in_uint32_le(s, length); |
| 695 |
in_uint32_le(s, flags); |
| 696 |
|
| 697 |
DEBUG_CLIPBOARD(("length is %d, flags are %d\n", length, flags)); |
| 698 |
|
| 699 |
if (3 == flags || 1 == flags) /* Single-write op or first-packet-of-several op */ |
| 700 |
{ |
| 701 |
in_uint16_le(s, ptype0); |
| 702 |
in_uint16_le(s, ptype1); |
| 703 |
DEBUG_CLIPBOARD(("ptype0 is %d, ptype1 is %d\n", ptype0, ptype1)); |
| 704 |
if (1 == ptype0 && 0 == ptype1) { |
| 705 |
cliprdr_handle_first_handshake(s); |
| 706 |
return; |
| 707 |
} else if (3 == ptype0 && 1 == ptype1) |
| 708 |
{ |
| 709 |
// Acknowledgment on our format announce. Do we care? Not right now. |
| 710 |
// There is a strange pad in this packet that we might need some time, |
| 711 |
// but probably not. |
| 712 |
DEBUG_CLIPBOARD(("Received format announce ACK\n")); |
| 713 |
failed_clipboard_acks = 0; |
| 714 |
return; |
| 715 |
|
| 716 |
} else if (3 == ptype0 && 2 == ptype1) |
| 717 |
{ |
| 718 |
DEBUG_CLIPBOARD(("Received failed clipboard format announce ACK, retrying\n")); |
| 719 |
|
| 720 |
/* This is a fairly portable way to sleep 1/10 of |
| 721 |
a second.. */ |
| 722 |
timeval.tv_sec = 0; |
| 723 |
timeval.tv_usec = 100; |
| 724 |
select(0, NULL, NULL, NULL, &timeval); |
| 725 |
if (failed_clipboard_acks < 3) |
| 726 |
{ |
| 727 |
|
| 728 |
cliprdr_send_format_announce(); |
| 729 |
/* Make sure we don't get stuck in this loop */ |
| 730 |
failed_clipboard_acks++; |
| 731 |
} |
| 732 |
else |
| 733 |
{ |
| 734 |
warning("Reached maximum number of clipboard format announce attempts. Pasting in Windows probably won't work well now.\n"); |
| 735 |
} |
| 736 |
} else if (2 == ptype0 && 0 == ptype1) |
| 737 |
{ |
| 738 |
cliprdr_register_server_formats(s); |
| 739 |
cliprdr_select_X_clipboards(); |
| 740 |
cliprdr_ack_format_list(); |
| 741 |
return; |
| 742 |
} else if (5 == ptype0 && 1 == ptype1) |
| 743 |
{ |
| 744 |
cliprdr_handle_server_data(length, flags, s); |
| 745 |
} else if (4 == ptype0 && 0 == ptype1) |
| 746 |
{ |
| 747 |
cliprdr_handle_server_data_request(s); |
| 748 |
} |
| 749 |
|
| 750 |
|
| 751 |
} |
| 752 |
else |
| 753 |
{ |
| 754 |
DEBUG_CLIPBOARD(("Handling middle or last packet\n")); |
| 755 |
cliprdr_handle_server_data(length, flags, s); |
| 756 |
} |
| 757 |
} |
| 758 |
|
| 759 |
void cliprdr_ipc_primary_lost(unsigned char *data, uint16 length) |
| 760 |
{ |
| 761 |
DEBUG_CLIPBOARD(("cliprdr_ipc_primary_lost called\n")); |
| 762 |
if (!have_primary) |
| 763 |
cliprdr_send_format_announce(); |
| 764 |
rdesktop_is_selection_owner = 0; |
| 765 |
} |
| 766 |
|
| 767 |
|
| 768 |
void cliprdr_init(void) |
| 769 |
{ |
| 770 |
primary_atom = XInternAtom(display, "PRIMARY", False); |
| 771 |
clipboard_atom = XInternAtom(display, "CLIPBOARD", False); |
| 772 |
targets_atom = XInternAtom(display, "TARGETS", False); |
| 773 |
timestamp_atom = XInternAtom(display, "TIMESTAMP", False); |
| 774 |
rdesktop_clipboard_target_atom = XInternAtom(display, "_RDESKTOP_CLIPBOARD_TARGET", False); |
| 775 |
incr_atom = XInternAtom(display, "INCR", False); |
| 776 |
targets[0] = targets_atom; |
| 777 |
targets[1] = XInternAtom(display, "TEXT", False); |
| 778 |
targets[2] = XInternAtom(display, "UTF8_STRING", False); |
| 779 |
targets[3] = XInternAtom(display, "text/unicode", False); |
| 780 |
targets[4] = XInternAtom(display, "TIMESTAMP", False); |
| 781 |
targets[5] = XInternAtom(display, "STRING", False); |
| 782 |
ipc_register_ipcnotify(RDESKTOP_IPC_CLIPRDR_FORMAT_ANNOUNCE, |
| 783 |
cliprdr_ipc_format_announce); |
| 784 |
ipc_register_ipcnotify(RDESKTOP_IPC_CLIPRDR_FORMAT_ANNOUNCE, |
| 785 |
cliprdr_ipc_primary_lost); |
| 786 |
|
| 787 |
|
| 788 |
} |
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