2 |
rdesktop: A Remote Desktop Protocol client. |
rdesktop: A Remote Desktop Protocol client. |
3 |
Protocol services - Clipboard functions |
Protocol services - Clipboard functions |
4 |
Copyright (C) Erik Forsberg <forsberg@cendio.se> 2003 |
Copyright (C) Erik Forsberg <forsberg@cendio.se> 2003 |
5 |
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Copyright (C) Matthew Chapman 2003 |
6 |
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7 |
This program is free software; you can redistribute it and/or modify |
This program is free software; you can redistribute it and/or modify |
8 |
it under the terms of the GNU General Public License as published by |
it under the terms of the GNU General Public License as published by |
19 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
20 |
*/ |
*/ |
21 |
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#include <X11/Xlib.h> |
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#include <X11/Xatom.h> |
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#include <sys/time.h> |
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#include <sys/types.h> |
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#include <unistd.h> |
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22 |
#include "rdesktop.h" |
#include "rdesktop.h" |
23 |
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24 |
extern BOOL encryption; |
#define CLIPRDR_CONNECT 1 |
25 |
extern Display *display; |
#define CLIPRDR_FORMAT_ANNOUNCE 2 |
26 |
extern Window wnd; |
#define CLIPRDR_FORMAT_ACK 3 |
27 |
extern Time last_gesturetime; |
#define CLIPRDR_DATA_REQUEST 4 |
28 |
extern Atom ipc_atom; |
#define CLIPRDR_DATA_RESPONSE 5 |
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// static Time selection_timestamp; |
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static Atom clipboard_atom, primary_atom, targets_atom, timestamp_atom; |
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static Atom rdesktop_clipboard_target_atom, incr_atom; |
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static cliprdr_dataformat *server_formats = NULL; |
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static uint16 num_server_formats = 0; |
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static XSelectionEvent selection_event; |
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static uint16 clipboard_channelno; |
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static Atom targets[NUM_TARGETS]; |
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static int have_primary = 0; |
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static int rdesktop_is_selection_owner = 0; |
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29 |
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30 |
static void |
#define CLIPRDR_REQUEST 0 |
31 |
cliprdr_print_server_formats(void) |
#define CLIPRDR_RESPONSE 1 |
32 |
{ |
#define CLIPRDR_ERROR 2 |
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#ifdef WITH_DEBUG_CLIPBOARD |
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cliprdr_dataformat *this; |
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uint16 i = 0; |
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this = server_formats; |
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DEBUG_CLIPBOARD(("There should be %d server formats.\n", num_server_formats)); |
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while (NULL != this) |
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{ |
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DEBUG_CLIPBOARD(("Format code %d\n", this->identifier)); |
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i++; |
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this = this->next; |
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} |
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DEBUG_CLIPBOARD(("There were %d server formats.\n", i)); |
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#endif |
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} |
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33 |
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34 |
/* |
static VCHANNEL *cliprdr_channel; |
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static void |
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cliprdr_set_selection_timestamp(void) |
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{ |
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XEvent xev; |
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DEBUG_CLIPBOARD(("Changing a property in order to get a timestamp\n")); |
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fflush(stdout); |
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XChangeProperty(display, wnd, rdesktop_clipboard_target_atom, |
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XA_ATOM, 32, PropModeAppend, 0, 0); |
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DEBUG_CLIPBOARD(("Waiting for PropertyChange on wnd\n")); |
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fflush(stdout); |
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XWindowEvent(display, wnd, |
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PropertyChangeMask, &xev); |
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DEBUG_CLIPBOARD(("Setting selection_timestamp\n")); |
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fflush(stdout); |
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selection_timestamp = xev.xproperty.time; |
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} |
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*/ |
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35 |
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36 |
static void |
static void |
37 |
cliprdr_send_format_announce(void) |
cliprdr_send_packet(uint16 type, uint16 status, uint8 *data, uint32 length) |
38 |
{ |
{ |
39 |
STREAM s; |
STREAM s; |
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int number_of_formats = 1; |
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DEBUG_CLIPBOARD(("Sending (empty) format announce\n")); |
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s = sec_init(encryption ? SEC_ENCRYPT : 0, number_of_formats * 36 + 12 + 4 + 4); |
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out_uint32_le(s, number_of_formats * 36 + 12); |
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out_uint32_le(s, 0x13); |
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out_uint16_le(s, 2); |
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out_uint16_le(s, 0); |
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out_uint32_le(s, number_of_formats * 36); |
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// out_uint32_le(s, 0xd); // FIXME: This is a rather bogus unicode text description.. |
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// rdp_out_unistr(s, "", 16); |
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// out_uint8s(s, 32); |
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40 |
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41 |
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DEBUG_CLIPBOARD(("CLIPRDR send: type=%d, status=%d, length=%d\n", type, status, length)); |
42 |
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43 |
out_uint32_le(s, 1); // FIXME: This is a rather bogus text description.. |
s = channel_init(cliprdr_channel, length + 12); |
44 |
out_uint8s(s, 32); |
out_uint16_le(s, type); |
45 |
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out_uint16_le(s, status); |
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out_uint32_le(s, 0); |
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s_mark_end(s); |
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sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, clipboard_channelno); |
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} |
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void |
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cliprdr_ipc_format_announce(unsigned char *data, uint16 length) |
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{ |
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STREAM s; |
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rdesktop_is_selection_owner = 1; |
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DEBUG_CLIPBOARD(("cliprdr_ipc_format_announce called, length is %d, data is %s, sending native format announce\n", length, data)); |
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s = sec_init(encryption ? SEC_ENCRYPT : 0, length + 12 + 4 + 4); |
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out_uint32_le(s, length + 12); |
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out_uint32_le(s, 0x13); |
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out_uint16_le(s, 2); |
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out_uint16_le(s, 0); |
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46 |
out_uint32_le(s, length); |
out_uint32_le(s, length); |
47 |
out_uint8p(s, data, length); |
out_uint8p(s, data, length); |
48 |
out_uint32_le(s, 0); // Pad |
out_uint32(s, 0); /* pad? */ |
49 |
s_mark_end(s); |
s_mark_end(s); |
50 |
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channel_send(s, cliprdr_channel); |
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sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, clipboard_channelno); |
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51 |
} |
} |
52 |
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53 |
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void |
54 |
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cliprdr_send_text_format_announce(void) |
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static void |
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cliprdr_send_empty_datapacket(void) |
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55 |
{ |
{ |
56 |
STREAM out; |
uint8 buffer[36]; |
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out = sec_init(encryption ? SEC_ENCRYPT : 0, 20); |
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out_uint32_le(out, 12); |
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out_uint32_le(out, 0x13); |
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out_uint16_le(out, 5); |
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out_uint16_le(out, 1); |
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out_uint32_le(out, 0); |
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/* Insert null string here? */ |
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out_uint32_le(out, 0); |
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s_mark_end(out); |
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57 |
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58 |
sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, clipboard_channelno); |
buf_out_uint32(buffer, CF_TEXT); |
59 |
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memset(buffer+4, 0, sizeof(buffer)-4); /* description */ |
60 |
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cliprdr_send_packet(CLIPRDR_FORMAT_ANNOUNCE, CLIPRDR_REQUEST, buffer, sizeof(buffer)); |
61 |
} |
} |
62 |
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63 |
void |
void |
64 |
cliprdr_handle_SelectionNotify(XSelectionEvent * event) |
cliprdr_send_blah_format_announce(void) |
65 |
{ |
{ |
66 |
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uint8 buffer[36]; |
67 |
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68 |
unsigned char *data, *datap; |
buf_out_uint32(buffer, CF_OEMTEXT); |
69 |
unsigned long nitems, bytes_left; |
memset(buffer+4, 0, sizeof(buffer)-4); /* description */ |
70 |
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cliprdr_send_packet(CLIPRDR_FORMAT_ANNOUNCE, CLIPRDR_REQUEST, buffer, sizeof(buffer)); |
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unsigned long bytes_left_to_transfer; |
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int res, i; |
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int format; |
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Atom type_return; |
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Atom best_target, text_target; |
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Atom *supported_targets; |
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STREAM out; |
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DEBUG_CLIPBOARD(("cliprdr_handle_SelectionNotify\n")); |
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if (None == event->property) |
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{ |
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cliprdr_send_empty_datapacket(); |
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return; /* Selection failed */ |
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} |
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DEBUG_CLIPBOARD(("selection: %s, target: %s, property: %s\n", |
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XGetAtomName(display, event->selection), |
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XGetAtomName(display, event->target), |
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XGetAtomName(display, event->property))); |
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if (targets_atom == event->target) |
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{ |
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/* Response to TARGETS request. Let's find the target |
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we want and request that */ |
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res = XGetWindowProperty(display, wnd, |
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rdesktop_clipboard_target_atom, |
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0L, 4096L, False, AnyPropertyType, |
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&type_return, &format, &nitems, &bytes_left, &data); |
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if (Success != res) |
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{ |
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DEBUG_CLIPBOARD(("XGetWindowProperty failed!\n")); |
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cliprdr_send_empty_datapacket(); |
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return; |
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} |
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if (None == type_return) |
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/* The owner might no support TARGETS. Just try |
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STRING */ |
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best_target = XA_STRING; |
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else |
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{ |
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/* FIXME: We should choose format here based |
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on what the server wanted */ |
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supported_targets = (Atom *) data; |
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best_target = XInternAtom(display, "STRING", False); |
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text_target = XInternAtom(display, "TEXT", False); |
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for (i = 0; i < nitems; i++) |
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{ |
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DEBUG_CLIPBOARD(("Target %d: %s\n", |
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i, XGetAtomName(display, supported_targets[i]))); |
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if (text_target == supported_targets[i]) |
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{ |
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DEBUG_CLIPBOARD(("Other party supports TEXT, choosing that as best_target\n")); |
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best_target = supported_targets[i]; |
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} |
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} |
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} |
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XConvertSelection(display, primary_atom, |
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best_target, rdesktop_clipboard_target_atom, wnd, event->time); |
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} |
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else /* Other clipboard data */ |
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{ |
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res = XGetWindowProperty(display, wnd, |
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rdesktop_clipboard_target_atom, |
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0L, 0x1FFFFFF, |
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True, AnyPropertyType, |
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&type_return, &format, &nitems, &bytes_left, &data); |
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/* FIXME: We need to handle INCR as well, |
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this is a temporary solution. */ |
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if (incr_atom == type_return) |
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{ |
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warning("We don't support INCR transfers at this time. Try cutting less data\n"); |
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cliprdr_send_empty_datapacket(); |
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} |
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if (Success != res) |
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{ |
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DEBUG_CLIPBOARD(("XGetWindowProperty failed!\n")); |
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cliprdr_send_empty_datapacket(); |
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return; |
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} |
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datap = data; |
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if (nitems + 1 <= MAX_CLIPRDR_STANDALONE_DATASIZE) |
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{ |
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out = sec_init(encryption ? SEC_ENCRYPT : 0, 20 + nitems + 1); |
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out_uint32_le(out, 12 + nitems + 1); |
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out_uint32_le(out, 0x13); |
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out_uint16_le(out, 5); |
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out_uint16_le(out, 1); |
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out_uint32_le(out, nitems + 1); |
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out_uint8p(out, datap, nitems + 1); |
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out_uint32_le(out, 0); |
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s_mark_end(out); |
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sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, clipboard_channelno); |
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} |
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else |
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{ |
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DEBUG_CLIPBOARD(("Sending %d bytes of data\n", |
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16 + MAX_CLIPRDR_STANDALONE_DATASIZE)); |
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out = sec_init(encryption ? SEC_ENCRYPT : 0, |
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16 + MAX_CLIPRDR_STANDALONE_DATASIZE); |
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out_uint32_le(out, nitems + 12); |
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out_uint32_le(out, 0x11); |
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out_uint16_le(out, 5); |
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out_uint16_le(out, 1); |
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out_uint32_le(out, nitems); |
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out_uint8p(out, datap, MAX_CLIPRDR_STANDALONE_DATASIZE); |
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s_mark_end(out); |
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sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, clipboard_channelno); |
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bytes_left_to_transfer = nitems - MAX_CLIPRDR_STANDALONE_DATASIZE; |
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datap += MAX_CLIPRDR_STANDALONE_DATASIZE; |
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while (bytes_left_to_transfer > MAX_CLIPRDR_STANDALONE_DATASIZE) |
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{ |
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DEBUG_CLIPBOARD(("Sending %d bytes of data\n", |
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16 + MAX_CLIPRDR_CONTINUATION_DATASIZE)); |
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out = sec_init(encryption ? SEC_ENCRYPT : 0, |
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8 + MAX_CLIPRDR_CONTINUATION_DATASIZE); |
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out_uint32_le(out, nitems); |
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out_uint32_le(out, 0x10); |
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out_uint8p(out, datap, MAX_CLIPRDR_CONTINUATION_DATASIZE); |
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s_mark_end(out); |
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sec_send_to_channel(out, |
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encryption ? SEC_ENCRYPT : 0, |
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clipboard_channelno); |
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bytes_left_to_transfer -= MAX_CLIPRDR_CONTINUATION_DATASIZE; |
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datap += MAX_CLIPRDR_CONTINUATION_DATASIZE; |
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} |
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DEBUG_CLIPBOARD(("Sending %u bytes of data\n", |
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12 + bytes_left_to_transfer)); |
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out = sec_init(encryption ? SEC_ENCRYPT : 0, 12 + bytes_left_to_transfer); |
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out_uint32_le(out, nitems); |
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out_uint32_le(out, 0x12); |
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out_uint8p(out, datap, bytes_left_to_transfer); |
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out_uint32_le(out, 0x0); |
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s_mark_end(out); |
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sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, clipboard_channelno); |
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} |
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XFree(data); |
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if (!rdesktop_is_selection_owner) |
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cliprdr_send_format_announce(); |
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} |
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71 |
} |
} |
72 |
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73 |
void |
void |
74 |
cliprdr_handle_SelectionClear(void) |
cliprdr_send_native_format_announce(uint8 *data, uint32 length) |
75 |
{ |
{ |
76 |
DEBUG_CLIPBOARD(("cliprdr_handle_SelectionClear\n")); |
cliprdr_send_packet(CLIPRDR_FORMAT_ANNOUNCE, CLIPRDR_REQUEST, data, length); |
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have_primary = 0; |
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ipc_send_message(RDESKTOP_IPC_CLIPRDR_PRIMARY_LOST, "", 0); |
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cliprdr_send_format_announce(); |
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77 |
} |
} |
78 |
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79 |
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void |
80 |
static void |
cliprdr_send_data_request(uint32 format) |
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cliprdr_request_clipboard_data(uint32 formatcode) |
|
81 |
{ |
{ |
82 |
STREAM s; |
uint8 buffer[4]; |
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s = sec_init(encryption ? SEC_ENCRYPT : 0, 24); |
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out_uint32_le(s, 16); |
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out_uint32_le(s, 0x13); |
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out_uint16_le(s, 4); |
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out_uint16_le(s, 0); |
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out_uint32_le(s, 4); // Remaining length |
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out_uint32_le(s, formatcode); |
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out_uint32_le(s, 0); // Unknown. Garbage pad? |
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s_mark_end(s); |
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83 |
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84 |
sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, clipboard_channelno); |
buf_out_uint32(buffer, format); |
85 |
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cliprdr_send_packet(CLIPRDR_DATA_REQUEST, CLIPRDR_REQUEST, buffer, sizeof(buffer)); |
86 |
} |
} |
87 |
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88 |
void |
void |
89 |
cliprdr_handle_SelectionRequest(XSelectionRequestEvent * xevent) |
cliprdr_send_data(uint8 *data, uint32 length) |
90 |
{ |
{ |
91 |
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cliprdr_send_packet(CLIPRDR_DATA_RESPONSE, CLIPRDR_RESPONSE, data, length); |
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XSelectionEvent xev; |
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unsigned long nitems, bytes_left; |
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Atom type_return; |
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uint32 *wanted_formatcode; |
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int format; |
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DEBUG_CLIPBOARD(("cliprdr_handle_SelectionRequest\n")); |
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DEBUG_CLIPBOARD(("Requestor window id 0x%x ", (unsigned) xevent->requestor)); |
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if (clipboard_atom == xevent->selection) |
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{ |
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DEBUG_CLIPBOARD(("wants CLIPBOARD\n")); |
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} |
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if (primary_atom == xevent->selection) |
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{ |
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DEBUG_CLIPBOARD(("wants PRIMARY\n")); |
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} |
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DEBUG_CLIPBOARD(("Target is %s (0x%x), property is %s (0x%x)\n", |
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XGetAtomName(display, xevent->target), |
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(unsigned) xevent->target, |
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XGetAtomName(display, xevent->property), (unsigned) xevent->property)); |
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xev.type = SelectionNotify; |
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xev.serial = 0; |
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xev.send_event = True; |
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xev.requestor = xevent->requestor; |
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xev.selection = xevent->selection; |
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xev.target = xevent->target; |
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xev.property = xevent->property; |
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xev.time = xevent->time; |
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memcpy(&selection_event, &xev, sizeof(xev)); |
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if (ipc_atom == xevent->target) |
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{ |
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DEBUG_CLIPBOARD(("Target atom is ipc_atom, getting INTEGER from requestor\n")); |
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XGetWindowProperty(display, xevent->requestor, |
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rdesktop_clipboard_target_atom, |
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0, |
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1, |
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True, XA_INTEGER, |
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&type_return, |
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&format, |
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&nitems, &bytes_left, (unsigned char **) &wanted_formatcode); |
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DEBUG_CLIPBOARD(("Got wanted formatcode %d, format is %d\n", *wanted_formatcode, |
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format)); |
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cliprdr_request_clipboard_data(*wanted_formatcode); |
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} |
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else if (targets_atom == xevent->target) |
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{ |
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DEBUG_CLIPBOARD(("TARGETS requested, sending list..\n")); |
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XChangeProperty(display, |
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xevent->requestor, |
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xevent->property, |
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XA_ATOM, |
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32, PropModeAppend, (unsigned char *) &targets, NUM_TARGETS); |
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XSendEvent(display, xevent->requestor, False, NoEventMask, (XEvent *) & xev); |
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return; |
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} |
|
|
else if (timestamp_atom == xevent->target) |
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{ |
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DEBUG_CLIPBOARD(("Sending TIMESTAMP\n")); |
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XChangeProperty(display, |
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xevent->requestor, |
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xevent->property, |
|
|
XA_INTEGER, |
|
|
32, PropModeAppend, (unsigned char *) &last_gesturetime, 1); |
|
|
XSendEvent(display, xevent->requestor, False, NoEventMask, (XEvent *) & xev); |
|
|
} |
|
|
else /* Some other target */ |
|
|
{ |
|
|
cliprdr_request_clipboard_data(CF_TEXT); |
|
|
/* Return and wait for data, handled by |
|
|
cliprdr_handle_server_data */ |
|
|
} |
|
92 |
} |
} |
93 |
|
|
|
|
|
94 |
static void |
static void |
95 |
cliprdr_ack_format_list(void) |
cliprdr_process(STREAM s) |
96 |
{ |
{ |
97 |
STREAM s; |
uint16 type, status; |
98 |
s = sec_init(encryption ? SEC_ENCRYPT : 0, 20); |
uint32 length, format; |
99 |
out_uint32_le(s, 12); |
char *data; |
|
out_uint32_le(s, 0x13); |
|
|
out_uint16_le(s, 3); |
|
|
out_uint16_le(s, 1); |
|
|
out_uint32_le(s, 0); |
|
|
out_uint32_le(s, 0x0000c0da); |
|
|
|
|
|
s_mark_end(s); |
|
|
|
|
|
sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, clipboard_channelno); |
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void |
|
|
cliprdr_register_server_formats(STREAM s) |
|
|
{ |
|
|
uint32 remaining_length, pad; |
|
|
uint16 num_formats; |
|
|
cliprdr_dataformat *this, *next; |
|
|
|
|
|
in_uint32_le(s, remaining_length); |
|
|
DEBUG_CLIPBOARD(("cliprdr_register_server_formats, remaining_length is %d\n", |
|
|
remaining_length)); |
|
100 |
|
|
101 |
|
in_uint16_le(s, type); |
102 |
|
in_uint16_le(s, status); |
103 |
|
in_uint32_le(s, length); |
104 |
|
data = s->p; |
105 |
|
|
106 |
num_formats = remaining_length / 36; |
DEBUG_CLIPBOARD(("CLIPRDR recv: type=%d, status=%d, length=%d\n", type, status, length)); |
107 |
|
|
108 |
ipc_send_message(RDESKTOP_IPC_CLIPRDR_FORMAT_ANNOUNCE, s->p, remaining_length); |
if (status == CLIPRDR_ERROR) |
|
if (NULL != server_formats) |
|
109 |
{ |
{ |
110 |
this = server_formats; |
if (type == CLIPRDR_FORMAT_ACK) |
|
next = this->next; |
|
|
while (NULL != next) |
|
111 |
{ |
{ |
112 |
xfree(this); |
/* FIXME: We seem to get this when we send an announce while the server is |
113 |
this = NULL; |
still processing a paste. Try sending another announce. */ |
114 |
this = next; |
cliprdr_send_text_format_announce(); |
115 |
next = this->next; |
return; |
116 |
} |
} |
|
} |
|
|
this = xmalloc(sizeof(cliprdr_dataformat)); |
|
|
this->next = NULL; |
|
|
server_formats = this; |
|
|
num_server_formats = num_formats; |
|
|
while (1 < num_formats) |
|
|
{ |
|
|
in_uint32_le(s, this->identifier); |
|
|
in_uint8a(s, this->textual_description, 32); |
|
|
DEBUG_CLIPBOARD(("Stored format description with numeric id %d\n", |
|
|
this->identifier)); |
|
|
this->next = xmalloc(sizeof(cliprdr_dataformat)); |
|
|
this = this->next; |
|
|
num_formats--; |
|
|
} |
|
|
in_uint32_le(s, this->identifier); |
|
|
DEBUG_CLIPBOARD(("Stored format description with numeric id %d\n", this->identifier)); |
|
|
in_uint8a(s, this->textual_description, 32); |
|
|
this->next = NULL; |
|
|
in_uint32_le(s, pad); |
|
|
cliprdr_print_server_formats(); |
|
|
} |
|
|
|
|
|
static void |
|
|
cliprdr_select_X_clipboards(void) |
|
|
{ |
|
|
XSetSelectionOwner(display, primary_atom, wnd, last_gesturetime); |
|
|
if (wnd != XGetSelectionOwner(display, primary_atom)) |
|
|
{ |
|
|
warning("Failed to aquire ownership of PRIMARY clipboard\n"); |
|
|
} |
|
|
else |
|
|
{ |
|
|
have_primary = 1; |
|
|
} |
|
|
XSetSelectionOwner(display, clipboard_atom, wnd, last_gesturetime); |
|
|
if (wnd != XGetSelectionOwner(display, clipboard_atom)) |
|
|
{ |
|
|
warning("Failed to aquire ownership of CLIPBOARD clipboard\n"); |
|
|
} |
|
|
|
|
|
} |
|
|
|
|
117 |
|
|
118 |
|
error("CLIPRDR error (type=%d)\n", type); |
|
static void |
|
|
cliprdr_handle_first_handshake(STREAM s) |
|
|
{ |
|
|
uint32 remaining_length, pad; |
|
|
in_uint32_le(s, remaining_length); |
|
|
in_uint32_le(s, pad); |
|
|
DEBUG_CLIPBOARD(("Remaining length in first handshake frm server is %d, pad is %d\n", |
|
|
remaining_length, pad)); |
|
|
cliprdr_send_format_announce(); |
|
|
} |
|
|
|
|
|
void |
|
|
cliprdr_handle_server_data(uint32 length, uint32 flags, STREAM s) |
|
|
{ |
|
|
static uint32 remaining_length; |
|
|
static char *data, *datap; |
|
|
static uint32 bytes_left_to_read; |
|
|
DEBUG_CLIPBOARD(("In cliprdr_handle_server_data, flags is %d\n", flags)); |
|
|
if (3 == flags) /* One-op write, no packets follows */ |
|
|
{ |
|
|
in_uint32_le(s, remaining_length); |
|
|
data = s->p; |
|
|
} |
|
|
else if (1 == flags) /* First of several packets */ |
|
|
{ |
|
|
in_uint32_le(s, remaining_length); |
|
|
DEBUG_CLIPBOARD(("Remaining length is %d\n", remaining_length)); |
|
|
data = xmalloc(remaining_length); |
|
|
datap = data; |
|
|
DEBUG_CLIPBOARD(("Copying first %d bytes\n", MAX_CLIPRDR_STANDALONE_DATASIZE)); |
|
|
memcpy(datap, s->p, MAX_CLIPRDR_STANDALONE_DATASIZE); |
|
|
|
|
|
datap += MAX_CLIPRDR_STANDALONE_DATASIZE; |
|
|
bytes_left_to_read = remaining_length - MAX_CLIPRDR_STANDALONE_DATASIZE; |
|
|
return; |
|
|
} |
|
|
else if (0 == flags) |
|
|
{ |
|
|
DEBUG_CLIPBOARD(("Copying %d middle bytes", MAX_CLIPRDR_CONTINUATION_DATASIZE)); |
|
|
memcpy(datap, s->p, MAX_CLIPRDR_CONTINUATION_DATASIZE); |
|
|
|
|
|
datap += MAX_CLIPRDR_CONTINUATION_DATASIZE; |
|
|
bytes_left_to_read -= MAX_CLIPRDR_CONTINUATION_DATASIZE; |
|
119 |
return; |
return; |
120 |
} |
} |
|
else if (2 == flags) |
|
|
{ |
|
|
DEBUG_CLIPBOARD(("Copying last %d bytes\n", bytes_left_to_read)); |
|
|
memcpy(datap, s->p, bytes_left_to_read); |
|
|
} |
|
|
DEBUG_CLIPBOARD(("Setting target atom (%s) on %d\n", |
|
|
XGetAtomName(display, selection_event.property), |
|
|
selection_event.requestor)); |
|
|
XChangeProperty(display, |
|
|
selection_event.requestor, |
|
|
selection_event.property, |
|
|
XInternAtom(display, "STRING", False), |
|
|
8, PropModeAppend, data, remaining_length - 1); |
|
|
|
|
|
XSendEvent(display, |
|
|
selection_event.requestor, False, NoEventMask, (XEvent *) & selection_event); |
|
|
|
|
|
if (2 == flags) |
|
|
xfree(data); |
|
|
|
|
|
} |
|
|
|
|
|
void |
|
|
cliprdr_handle_server_data_request(STREAM s) |
|
|
{ |
|
|
Window selectionowner; |
|
|
uint32 remaining_length; |
|
|
uint32 wanted_formatcode, pad; |
|
|
|
|
|
in_uint32_le(s, remaining_length); |
|
|
in_uint32_le(s, wanted_formatcode); |
|
|
in_uint32_le(s, pad); |
|
|
|
|
|
/* FIXME: Check that we support this formatcode */ |
|
|
|
|
|
DEBUG_CLIPBOARD(("Request from server for format %d\n", wanted_formatcode)); |
|
|
|
|
|
selectionowner = XGetSelectionOwner(display, primary_atom); |
|
|
|
|
|
if (rdesktop_is_selection_owner) |
|
|
{ |
|
|
DEBUG_CLIPBOARD(("XChangeProperty, rdesktop_is_selection_owner\n")); |
|
|
XChangeProperty(display, wnd, rdesktop_clipboard_target_atom, |
|
|
XA_INTEGER, 32, PropModeReplace, |
|
|
(unsigned char *) &wanted_formatcode, 1); |
|
|
|
|
|
XConvertSelection(display, primary_atom, |
|
|
ipc_atom, rdesktop_clipboard_target_atom, wnd, CurrentTime); |
|
|
return; |
|
|
} |
|
|
|
|
|
|
|
|
if (None != selectionowner) |
|
|
{ |
|
|
|
|
|
/* FIXME: Perhaps we should check if we are the owner? */ |
|
|
|
|
|
XConvertSelection(display, primary_atom, |
|
|
targets_atom, rdesktop_clipboard_target_atom, wnd, CurrentTime); |
|
|
|
|
|
/* The rest of the transfer is handled in |
|
|
cliprdr_handle_SelectionNotify */ |
|
|
|
|
|
} |
|
|
else |
|
|
{ |
|
|
|
|
|
selectionowner = XGetSelectionOwner(display, clipboard_atom); |
|
|
if (None != selectionowner) |
|
|
{ |
|
|
XConvertSelection(display, clipboard_atom, |
|
|
targets_atom, |
|
|
rdesktop_clipboard_target_atom, wnd, CurrentTime); |
|
|
|
|
|
/* The rest of the transfer is handled in |
|
|
cliprdr_handle_SelectionNotify */ |
|
|
|
|
|
} |
|
|
else |
|
|
{ |
|
|
|
|
|
DEBUG_CLIPBOARD(("There were no owner for PRIMARY nor CLIPBOARD, sending empty string\n")); // FIXME: Should we always send an empty string? |
|
|
|
|
|
cliprdr_send_empty_datapacket(); |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
} |
|
121 |
|
|
122 |
|
switch (type) |
|
void |
|
|
cliprdr_callback(STREAM s, uint16 channelno) |
|
|
{ |
|
|
static int failed_clipboard_acks = 0; |
|
|
struct timeval timeval; |
|
|
uint32 length, flags; |
|
|
uint16 ptype0, ptype1; |
|
|
clipboard_channelno = channelno; |
|
|
DEBUG_CLIPBOARD(("cliprdr_callback called with channelno %d, clipboard data:\n", |
|
|
channelno)); |
|
|
#ifdef WITH_DEBUG_CLIPBOARD |
|
|
// hexdump(s->p, s->end - s->p); |
|
|
#endif |
|
|
in_uint32_le(s, length); |
|
|
in_uint32_le(s, flags); |
|
|
|
|
|
DEBUG_CLIPBOARD(("length is %d, flags are %d\n", length, flags)); |
|
|
|
|
|
if (3 == flags || 1 == flags) /* Single-write op or first-packet-of-several op */ |
|
123 |
{ |
{ |
124 |
in_uint16_le(s, ptype0); |
case CLIPRDR_CONNECT: |
125 |
in_uint16_le(s, ptype1); |
ui_clip_sync(); |
126 |
DEBUG_CLIPBOARD(("ptype0 is %d, ptype1 is %d\n", ptype0, ptype1)); |
break; |
127 |
if (1 == ptype0 && 0 == ptype1) |
case CLIPRDR_FORMAT_ANNOUNCE: |
128 |
{ |
ui_clip_format_announce(data, length); |
129 |
cliprdr_handle_first_handshake(s); |
cliprdr_send_packet(CLIPRDR_FORMAT_ACK, CLIPRDR_RESPONSE, NULL, 0); |
130 |
return; |
return; |
131 |
} |
case CLIPRDR_FORMAT_ACK: |
132 |
else if (3 == ptype0 && 1 == ptype1) |
break; |
133 |
{ |
case CLIPRDR_DATA_REQUEST: |
134 |
// Acknowledgment on our format announce. Do we care? Not right now. |
in_uint32_le(s, format); |
135 |
// There is a strange pad in this packet that we might need some time, |
ui_clip_request_data(format); |
136 |
// but probably not. |
break; |
137 |
DEBUG_CLIPBOARD(("Received format announce ACK\n")); |
case CLIPRDR_DATA_RESPONSE: |
138 |
failed_clipboard_acks = 0; |
ui_clip_handle_data(data, length); |
139 |
return; |
break; |
140 |
|
default: |
141 |
} |
unimpl("CLIPRDR packet type %d\n", type); |
|
else if (3 == ptype0 && 2 == ptype1) |
|
|
{ |
|
|
DEBUG_CLIPBOARD(("Received failed clipboard format announce ACK, retrying\n")); |
|
|
|
|
|
/* This is a fairly portable way to sleep 1/10 of |
|
|
a second.. */ |
|
|
timeval.tv_sec = 0; |
|
|
timeval.tv_usec = 100; |
|
|
select(0, NULL, NULL, NULL, &timeval); |
|
|
if (failed_clipboard_acks < 3) |
|
|
{ |
|
|
|
|
|
cliprdr_send_format_announce(); |
|
|
/* Make sure we don't get stuck in this loop */ |
|
|
failed_clipboard_acks++; |
|
|
} |
|
|
else |
|
|
{ |
|
|
warning("Reached maximum number of clipboard format announce attempts. Pasting in Windows probably won't work well now.\n"); |
|
|
} |
|
|
} |
|
|
else if (2 == ptype0 && 0 == ptype1) |
|
|
{ |
|
|
cliprdr_register_server_formats(s); |
|
|
cliprdr_select_X_clipboards(); |
|
|
cliprdr_ack_format_list(); |
|
|
return; |
|
|
} |
|
|
else if (5 == ptype0 && 1 == ptype1) |
|
|
{ |
|
|
cliprdr_handle_server_data(length, flags, s); |
|
|
} |
|
|
else if (4 == ptype0 && 0 == ptype1) |
|
|
{ |
|
|
cliprdr_handle_server_data_request(s); |
|
|
} |
|
|
|
|
|
|
|
|
} |
|
|
else |
|
|
{ |
|
|
DEBUG_CLIPBOARD(("Handling middle or last packet\n")); |
|
|
cliprdr_handle_server_data(length, flags, s); |
|
142 |
} |
} |
143 |
} |
} |
144 |
|
|
145 |
void |
BOOL |
|
cliprdr_ipc_primary_lost(unsigned char *data, uint16 length) |
|
|
{ |
|
|
DEBUG_CLIPBOARD(("cliprdr_ipc_primary_lost called\n")); |
|
|
if (!have_primary) |
|
|
cliprdr_send_format_announce(); |
|
|
rdesktop_is_selection_owner = 0; |
|
|
} |
|
|
|
|
|
|
|
|
void |
|
146 |
cliprdr_init(void) |
cliprdr_init(void) |
147 |
{ |
{ |
148 |
primary_atom = XInternAtom(display, "PRIMARY", False); |
cliprdr_channel = channel_register("cliprdr", CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP \ |
149 |
clipboard_atom = XInternAtom(display, "CLIPBOARD", False); |
| CHANNEL_OPTION_COMPRESS_RDP | CHANNEL_OPTION_SHOW_PROTOCOL, cliprdr_process); |
150 |
targets_atom = XInternAtom(display, "TARGETS", False); |
return (cliprdr_channel != NULL); |
|
timestamp_atom = XInternAtom(display, "TIMESTAMP", False); |
|
|
rdesktop_clipboard_target_atom = XInternAtom(display, "_RDESKTOP_CLIPBOARD_TARGET", False); |
|
|
incr_atom = XInternAtom(display, "INCR", False); |
|
|
targets[0] = targets_atom; |
|
|
targets[1] = XInternAtom(display, "TEXT", False); |
|
|
targets[2] = XInternAtom(display, "UTF8_STRING", False); |
|
|
targets[3] = XInternAtom(display, "text/unicode", False); |
|
|
targets[4] = XInternAtom(display, "TIMESTAMP", False); |
|
|
targets[5] = XInternAtom(display, "STRING", False); |
|
|
ipc_register_ipcnotify(RDESKTOP_IPC_CLIPRDR_FORMAT_ANNOUNCE, cliprdr_ipc_format_announce); |
|
|
ipc_register_ipcnotify(RDESKTOP_IPC_CLIPRDR_FORMAT_ANNOUNCE, cliprdr_ipc_primary_lost); |
|
|
|
|
|
|
|
151 |
} |
} |