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/* -*- c-basic-offset: 8 -*- |
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rdesktop: A Remote Desktop Protocol client. |
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Protocol services - Clipboard functions |
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Copyright (C) Erik Forsberg <forsberg@cendio.se> 2003 |
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|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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|
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#include <X11/Xlib.h> |
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#include <X11/Xatom.h> |
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#include "rdesktop.h" |
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|
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extern BOOL encryption; |
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extern Display *display; |
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extern Window wnd; |
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extern Time last_keyrelease; |
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|
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static Atom clipboard_atom, primary_atom, targets_atom, timestamp_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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|
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static void |
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cliprdr_print_server_formats(void) |
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{ |
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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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|
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void |
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cliprdr_handle_SelectionNotify(void) |
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{ |
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DEBUG_CLIPBOARD(("cliprdr_handle_SelectionNotify\n")); |
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} |
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|
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void |
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cliprdr_handle_SelectionClear(void) |
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{ |
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DEBUG_CLIPBOARD(("cliprdr_handle_SelectionClear\n")); |
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} |
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|
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void print_X_error(int res) |
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{ |
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switch(res) { |
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case Success: |
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DEBUG_CLIPBOARD(("Success\n")); |
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break; |
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|
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case BadAtom: |
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DEBUG_CLIPBOARD(("BadAtom\n")); |
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break; |
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|
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case BadRequest: |
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DEBUG_CLIPBOARD(("BadRequest\n")); |
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break; |
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|
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case BadAlloc: |
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DEBUG_CLIPBOARD(("BadAlloc\n")); |
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break; |
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|
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case BadMatch: |
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DEBUG_CLIPBOARD(("BadMatch\n")); |
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break; |
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|
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case BadValue: |
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DEBUG_CLIPBOARD(("BadValue\n")); |
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break; |
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|
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case BadWindow: |
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DEBUG_CLIPBOARD(("BadWindow\n")); |
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break; |
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|
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default: |
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DEBUG_CLIPBOARD(("Unknown X error code %d\n", res)); |
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} |
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} |
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|
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static void |
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cliprdr_request_clipboard_data(uint32 formatcode) |
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{ |
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STREAM s; |
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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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|
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s_mark_end(s); |
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|
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sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, 1005); // FIXME: Don't hardcode channel! |
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} |
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|
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|
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void |
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cliprdr_handle_SelectionRequest(XSelectionRequestEvent *xevent) |
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{ |
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|
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Atom *targets; |
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int res; |
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|
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XSelectionEvent xev; |
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DEBUG_CLIPBOARD(("cliprdr_handle_SelectionRequest\n")); |
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DEBUG_CLIPBOARD(("Requestor window id 0x%x ", |
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(unsigned)xevent->requestor)); |
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if (clipboard_atom == xevent->selection) { |
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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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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), |
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(unsigned)xevent->property)); |
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|
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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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|
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if (targets_atom == xevent->target) |
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{ |
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DEBUG_CLIPBOARD(("TARGETS requested, sending list..\n")); |
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targets = xmalloc(4*sizeof(Atom)); |
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targets[0] = xevent->target; |
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targets[1] = XInternAtom(display, "TEXT", True); |
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targets[2] = XInternAtom(display, "UTF8_STRING", True); |
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targets[3] = XInternAtom(display, "TIMESTAMP", True); |
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res = 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, |
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PropModeAppend, |
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(unsigned char *)targets, |
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3); |
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DEBUG_CLIPBOARD(("res after XChangeProperty is ")); |
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print_X_error(res); |
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|
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res = XSendEvent(display, |
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xevent->requestor, |
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False, |
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NoEventMask, |
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(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(("TIMESTAMP requested... sending 0x%x\n", |
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(unsigned)last_keyrelease)); |
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res = XChangeProperty(display, |
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xevent->requestor, |
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xevent->property, |
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XA_INTEGER, |
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32, |
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PropModeAppend, |
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(unsigned char *)&last_keyrelease, |
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1); |
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res = XSendEvent(display, |
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xevent->requestor, |
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False, |
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NoEventMask, |
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(XEvent *)&xev); |
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} else /* Some other target */ |
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{ |
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cliprdr_request_clipboard_data(CF_TEXT); |
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memcpy(&selection_event, &xev, sizeof(xev)); |
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/* Return and wait for data, handled by |
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cliprdr_handle_server_data */ |
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} |
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} |
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|
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|
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static void |
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cliprdr_ack_format_list(void) |
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{ |
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STREAM s; |
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s = sec_init(encryption ? SEC_ENCRYPT : 0, 20); |
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out_uint32_le(s, 12); |
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out_uint32_le(s, 0x13); |
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out_uint16_le(s, 3); |
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out_uint16_le(s, 1); |
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out_uint32_le(s, 0); |
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out_uint32_le(s, 0x0000c0da); |
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|
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s_mark_end(s); |
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|
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sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, 1005); // FIXME: Don't hardcode channel! |
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} |
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|
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|
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|
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|
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|
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static void |
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cliprdr_register_server_formats(STREAM s) |
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{ |
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uint32 remaining_length, pad; |
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uint16 num_formats; |
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cliprdr_dataformat *this, *next; |
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|
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DEBUG_CLIPBOARD(("cliprdr_register_server_formats\n")); |
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in_uint32_le(s, remaining_length); |
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|
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num_formats = remaining_length / 36; |
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if (NULL != server_formats) { |
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this = server_formats; |
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next = this->next; |
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while (NULL != next) { |
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xfree(this); |
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this = NULL; |
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this = next; |
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next = this->next; |
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} |
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} |
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this = xmalloc(sizeof(cliprdr_dataformat)); |
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this->next = NULL; |
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server_formats = this; |
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num_server_formats = num_formats; |
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while (1 < num_formats) { |
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in_uint32_le(s, this->identifier); |
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in_uint8a(s, this->textual_description, 32); |
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DEBUG_CLIPBOARD(("Stored format description with numeric id %d\n", |
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this->identifier)); |
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this-> next = xmalloc(sizeof(cliprdr_dataformat)); |
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this = this->next; |
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num_formats--; |
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} |
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in_uint32_le(s, this->identifier); |
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DEBUG_CLIPBOARD(("Stored format description with numeric id %d\n", this->identifier)); |
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in_uint8a(s, this->textual_description, 32); |
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this -> next = NULL; |
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in_uint32_le(s, pad); |
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cliprdr_print_server_formats(); |
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} |
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|
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static void |
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cliprdr_select_X_clipboards(void) |
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{ |
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XSetSelectionOwner(display, primary_atom, wnd, last_keyrelease); |
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if (wnd != XGetSelectionOwner(display, primary_atom)) |
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{ |
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warning("Failed to aquire ownership of PRIMARY clipboard\n"); |
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} |
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XSetSelectionOwner(display, clipboard_atom, wnd, CurrentTime); |
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if (wnd != XGetSelectionOwner(display, clipboard_atom)) |
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{ |
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warning("Failed to aquire ownership of CLIPBOARD clipboard\n"); |
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} |
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|
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} |
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|
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|
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|
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static void |
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cliprdr_send_format_announce(void) |
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{ |
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STREAM s; |
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int number_of_formats = 1; |
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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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|
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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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|
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out_uint32_le(s, 0); |
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|
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s_mark_end(s); |
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sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, 1005); // FIXME: Don't hardcode channel! |
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} |
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|
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|
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static void |
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cliprdr_handle_first_handshake(STREAM s) |
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{ |
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uint32 remaining_length, pad; |
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in_uint32_le(s, remaining_length); |
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in_uint32_le(s, pad); |
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DEBUG_CLIPBOARD(("Remaining length in first handshake frm server is %d, pad is %d\n", |
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remaining_length, pad)); |
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cliprdr_send_format_announce(); |
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} |
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|
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void cliprdr_handle_server_data(uint32 length, STREAM s) |
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{ |
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uint32 remaining_length; |
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char *data; |
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int res; |
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in_uint32_le(s, remaining_length); |
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data = s->p; |
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res = XChangeProperty(display, |
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selection_event.requestor, |
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selection_event.property, |
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XInternAtom(display, "STRING", False), |
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8, |
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PropModeAppend, |
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data, |
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remaining_length); |
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|
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DEBUG_CLIPBOARD(("res after XChangeProperty is ")); |
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print_X_error(res); |
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|
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res = XSendEvent(display, |
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selection_event.requestor, |
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False, |
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NoEventMask, |
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(XEvent *)&selection_event); |
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|
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DEBUG_CLIPBOARD(("res after XSendEvent is ")); |
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print_X_error(res); |
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|
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} |
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|
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void cliprdr_callback(STREAM s) |
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{ |
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uint32 length, flags; |
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uint16 ptype0, ptype1; |
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DEBUG_CLIPBOARD(("cliprdr_callback called, clipboard data:\n")); |
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#ifdef WITH_DEBUG_CLIPBOARD |
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hexdump(s->p, s->end - s->p); |
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#endif |
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in_uint32_le(s, length); |
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in_uint32_le(s, flags); |
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|
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DEBUG_CLIPBOARD(("length is %d, flags are %d\n", length, flags)); |
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|
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if (flags & 0x03 || flags & 0x01) /* Single-write op or first-packet-of-several op */ |
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{ |
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in_uint16_le(s, ptype0); |
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in_uint16_le(s, ptype1); |
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DEBUG_CLIPBOARD(("ptype0 is %d, ptype1 is %d\n", ptype0, ptype1)); |
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if (1 == ptype0 && 0 == ptype1) { |
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cliprdr_handle_first_handshake(s); |
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return; |
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} else if (3 == ptype0 && 1 == ptype1) |
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{ |
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// Acknowledgment on our format announce. Do we care? Not right now. |
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// There is a strange pad in this packet that we might need some time, |
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// but probably not. |
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DEBUG_CLIPBOARD(("Received format announce ACK\n")); |
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return; |
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|
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} else if (2 == ptype0 && 0 == ptype1) |
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{ |
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cliprdr_register_server_formats(s); |
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cliprdr_select_X_clipboards(); |
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cliprdr_ack_format_list(); |
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return; |
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} else if (5 == ptype0 && 1 == ptype1) |
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{ |
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cliprdr_handle_server_data(length, s); |
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} |
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|
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} |
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} |
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|
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|
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void cliprdr_init(void) |
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{ |
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primary_atom = XInternAtom(display, "PRIMARY", False); |
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clipboard_atom = XInternAtom(display, "CLIPBOARD", False); |
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targets_atom = XInternAtom(display, "TARGETS", True); |
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timestamp_atom = XInternAtom(display, "TIMESTAMP", True); |
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} |
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