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xrdp/sesman/chansrv/clipboard.c

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/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Jay Sorg 2009-2012
* Copyright (C) Laxmikant Rashinkar 2012
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
for help see
http://tronche.com/gui/x/icccm/sec-2.html#s-2
.../kde/kdebase/workspace/klipper/clipboardpoll.cpp
Revision:
Aug 05, 2012:
Laxmikant Rashinkar (LK dot Rashinkar at gmail.com)
added clipboard support for BMP images
http://msdn.microsoft.com/en-us/library/cc241066%28v=prot.20%29.aspx
*/
/*
TARGETS
MULTIPLE
image/tiff
image/jpeg
image/x-MS-bmp
image/x-bmp
image/bmp
image/png
SAVE_TARGETS
TIMESTAMP
wininfo - show window info
xlsatoms - dump atoms
dolphin 1.4 KDE 4.4.5 (debian 6) copy one file
text/uri-list
text/x-moz-url
text/plain
UTF8_STRING
STRING
TEXT
COMPOUND_TEXT
application/x-qiconlist
TARGETS
MULTIPLE
TIMESTAMP
SAVE_TARGETS
dolphin 1.6.1 KDE 4.6.5 (kubuntu 11.04) copy one file
text/uri-list
text/x-moz-url
text/plain
UTF8_STRING
STRING
TEXT
COMPOUND_TEXT
application/x-qiconlist
TARGETS
MULTIPLE
TIMESTAMP
SAVE_TARGETS
kolourpaint 4.4.5 KDE 4.4.5 copy image area
application/x-kolourpaint-selection-400
application/x-qt-image
image/png
image/bw
image/eps
image/epsf
image/epsi
image/pcx
image/rgb
image/rgba
image/sgi
image/tga
image/bmp
image/ico
image/jp2
image/jpeg
image/jpg
image/ppm
PIXMAP
image/tif
image/tiff
image/xbm
image/xpm
image/xv
TARGETS
MULTIPLE
TIMESTAMP
SAVE_TARGETS
kate 3.4.5 KDE 4.4.5 copy text
text/plain
UTF8_STRING
STRING
TEXT
COMPOUND_TEXT
TARGETS
MULTIPLE
TIMESTAMP
SAVE_TARGETS
gimp 2.6.10 copy image area
TIMESTAMP
TARGETS
MULTIPLE
SAVE_TARGETS
image/png
image/bmp
image/x-bmp
image/x-MS-bmp
image/tiff
image/x-icon
image/x-ico
image/x-win-bitmap
image/jpeg
thunar 1.2.1 copy a file
TIMESTAMP
TARGETS
MULTIPLE
x-special/gnome-copied-files
UTF8_STRING
dolphin 1.6.1 KDE 4.6.5 (kubuntu 11.04) copy two files
text/uri-list
/home/jay/temp/jetstream1.txt
/home/jay/temp/jpeg64x64.jpg
0000 66 69 6c 65 3a 2f 2f 2f 68 6f 6d 65 2f 6a 61 79 file:///home/jay
0010 2f 74 65 6d 70 2f 6a 65 74 73 74 72 65 61 6d 31 /temp/jetstream1
0020 2e 74 78 74 0d 0a 66 69 6c 65 3a 2f 2f 2f 68 6f .txt..file:///ho
0030 6d 65 2f 6a 61 79 2f 74 65 6d 70 2f 6a 70 65 67 me/jay/temp/jpeg
0040 36 34 78 36 34 2e 6a 70 67 64x64.jpg
thunar 1.2.1 (kubuntu 11.04) copy two files
x-special/gnome-copied-files
/home/jay/temp/jetstream1.txt
/home/jay/temp/jpeg64x64.jpg
0000 63 6f 70 79 0a 66 69 6c 65 3a 2f 2f 2f 68 6f 6d copy.file:///hom
0010 65 2f 6a 61 79 2f 74 65 6d 70 2f 6a 65 74 73 74 e/jay/temp/jetst
0020 72 65 61 6d 31 2e 74 78 74 0d 0a 66 69 6c 65 3a ream1.txt..file:
0030 2f 2f 2f 68 6f 6d 65 2f 6a 61 79 2f 74 65 6d 70 ///home/jay/temp
0040 2f 6a 70 65 67 36 34 78 36 34 2e 6a 70 67 0d 0a /jpeg64x64.jpg..
*/
#if defined(HAVE_CONFIG_H)
#include <config_ac.h>
#endif
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <X11/extensions/Xfixes.h>
#include "arch.h"
#include "parse.h"
#include "os_calls.h"
#include "chansrv.h"
#include "../config.h"
#include "clipboard.h"
#include "clipboard_file.h"
#include "clipboard_common.h"
#include "xcommon.h"
#include "chansrv_fuse.h"
/* module based logging */
#define LOG_ERROR 0
#define LOG_INFO 1
#define LOG_DEBUG 2
#undef LOG_LEVEL
#define LOG_LEVEL LOG_ERROR
#define log_error(_params...) \
{ \
g_write("[%10.10u]: CLIPBOARD %s: %d : ERROR: ", \
g_time3(), __func__, __LINE__); \
g_writeln (_params); \
}
#define log_always(_params...) \
{ \
g_write("[%10.10u]: CLIPBOARD %s: %d : ALWAYS: ", \
g_time3(), __func__, __LINE__); \
g_writeln (_params); \
}
#define log_info(_params...) \
{ \
if (LOG_INFO <= LOG_LEVEL) \
{ \
g_write("[%10.10u]: CLIPBOARD %s: %d : ", \
g_time3(), __func__, __LINE__); \
g_writeln (_params); \
} \
}
#define log_debug(_params...) \
{ \
if (LOG_DEBUG <= LOG_LEVEL) \
{ \
g_write("[%10.10u]: CLIPBOARD %s: %d : ", \
g_time3(), __func__, __LINE__); \
g_writeln (_params); \
} \
}
static char g_bmp_image_header[] =
{
/* this is known to work */
//0x42, 0x4d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
/* THIS IS BEING SENT BY WIN2008 */
0x42, 0x4d, 0x16, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x36, 0x00, 0x00, 0x00
};
extern int g_cliprdr_chan_id; /* in chansrv.c */
struct config_sesman *g_cfg; /* config.h */
extern Display *g_display; /* in xcommon.c */
extern int g_x_socket; /* in xcommon.c */
extern tbus g_x_wait_obj; /* in xcommon.c */
extern Screen *g_screen; /* in xcommon.c */
extern int g_screen_num; /* in xcommon.c */
int g_outbound_clipboard_restricted = 0;
int g_clip_up = 0;
static Atom g_clipboard_atom = 0; /* CLIPBOARD */
static Atom g_clip_property_atom = 0; /* XRDP_CLIP_PROPERTY_ATOM */
static Atom g_timestamp_atom = 0; /* TIMESTAMP */
static Atom g_multiple_atom = 0; /* MULTIPLE */
static Atom g_targets_atom = 0; /* TARGETS */
static Atom g_primary_atom = 0; /* PRIMARY */
static Atom g_secondary_atom = 0; /* SECONDARY */
static Atom g_get_time_atom = 0; /* XRDP_GET_TIME_ATOM */
static Atom g_utf8_atom = 0; /* UTF8_STRING */
static Atom g_image_bmp_atom = 0; /* image/bmp */
static Atom g_file_atom1 = 0; /* text/uri-list */
static Atom g_file_atom2 = 0; /* x-special/gnome-copied-files */
static Atom g_incr_atom = 0; /* INCR */
static Window g_wnd = 0;
static int g_xfixes_event_base = 0;
static int g_got_selection = 0; /* boolean */
static Time g_selection_time = 0;
static struct stream *g_ins = 0;
/* for image data */
static XSelectionRequestEvent g_saved_selection_req_event;
/* xserver maximum request size in bytes */
static int g_incr_max_req_size = 0;
/* server to client, pasting from linux app to mstsc */
struct clip_s2c g_clip_s2c;
/* client to server, pasting from mstsc to linux app */
struct clip_c2s g_clip_c2s;
/* default version and flags */
static int g_cliprdr_version = 2;
static int g_cliprdr_flags = CB_USE_LONG_FORMAT_NAMES |
CB_STREAM_FILECLIP_ENABLED |
CB_FILECLIP_NO_FILE_PATHS;
/* from client to server */
/* last received CLIPRDR_FORMAT_LIST(CLIPRDR_FORMAT_ANNOUNCE) */
static int g_formatIds[16];
static int g_num_formatIds = 0;
static int g_file_format_id = -1;
static char g_last_atom_name[256] = "";
/*****************************************************************************/
static char *
get_atom_text(Atom atom)
{
char *name;
int failed;
failed = 0;
/* sanity check */
if ((atom < 1) || (atom > 512))
{
failed = 1;
}
if (!failed)
{
name = XGetAtomName(g_display, atom);
if (name == 0)
{
failed = 1;
}
}
if (failed)
{
g_snprintf(g_last_atom_name, 255, "unknown atom 0x%8.8x", (int)atom);
return g_last_atom_name;
}
g_strncpy(g_last_atom_name, name, 255);
XFree(name);
return g_last_atom_name;
}
/*****************************************************************************/
/* this is one way to get the current time from the x server */
static Time
clipboard_get_server_time(void)
{
XEvent xevent;
unsigned char no_text[4];
/* append nothing */
no_text[0] = 0;
XChangeProperty(g_display, g_wnd, g_get_time_atom, XA_STRING, 8,
PropModeAppend, no_text, 0);
/* wait for PropertyNotify */
do
{
XMaskEvent(g_display, PropertyChangeMask, &xevent);
}
while (xevent.type != PropertyNotify);
return xevent.xproperty.time;
}
/*****************************************************************************/
static int
clipboard_find_format_id(int format_id)
{
int index;
for (index = 0; index < g_num_formatIds; index++)
{
if (g_formatIds[index] == format_id)
{
return index;
}
}
return -1;
}
/*****************************************************************************/
/* returns error */
int
clipboard_init(void)
{
struct stream *s;
int size;
int rv;
int input_mask;
int dummy;
int ver_maj;
int ver_min;
Status st;
LOG(0, ("clipboard_init:"));
if (g_clip_up)
{
return 0;
}
/* reading config */
g_cfg = g_new0(struct config_sesman, 1);
if (0 == g_cfg)
{
g_printf("error creating config: quitting.\n");
g_deinit();
g_exit(1);
}
if (0 != config_read(g_cfg))
{
log_error("clipboard: error reading config. quitting.");
return 1;
}
//one-way clipboard
g_outbound_clipboard_restricted = g_cfg->sec.restrict_outbound_clipboard;
xfuse_init();
xcommon_init();
g_incr_max_req_size = XMaxRequestSize(g_display) * 4 - 24;
g_memset(&g_clip_c2s, 0, sizeof(g_clip_c2s));
g_memset(&g_clip_s2c, 0, sizeof(g_clip_s2c));
rv = 0;
if (rv == 0)
{
g_clipboard_atom = XInternAtom(g_display, "CLIPBOARD", False);
if (g_clipboard_atom == None)
{
log_error("clipboard_init: XInternAtom failed");
rv = 3;
}
}
if (rv == 0)
{
if (!XFixesQueryExtension(g_display, &g_xfixes_event_base, &dummy))
{
log_error("clipboard_init: no xfixes");
rv = 5;
}
}
if (rv == 0)
{
log_debug("clipboard_init: g_xfixes_event_base %d",
g_xfixes_event_base);
st = XFixesQueryVersion(g_display, &ver_maj, &ver_min);
log_debug("clipboard_init st %d, maj %d min %d", st,
ver_maj, ver_min);
g_clip_property_atom = XInternAtom(g_display, "XRDP_CLIP_PROPERTY_ATOM",
False);
g_get_time_atom = XInternAtom(g_display, "XRDP_GET_TIME_ATOM",
False);
g_timestamp_atom = XInternAtom(g_display, "TIMESTAMP", False);
g_targets_atom = XInternAtom(g_display, "TARGETS", False);
g_multiple_atom = XInternAtom(g_display, "MULTIPLE", False);
g_primary_atom = XInternAtom(g_display, "PRIMARY", False);
g_secondary_atom = XInternAtom(g_display, "SECONDARY", False);
g_utf8_atom = XInternAtom(g_display, "UTF8_STRING", False);
g_image_bmp_atom = XInternAtom(g_display, "image/bmp", False);
g_file_atom1 = XInternAtom(g_display, "text/uri-list", False);
g_file_atom2 = XInternAtom(g_display, "x-special/gnome-copied-files", False);
g_incr_atom = XInternAtom(g_display, "INCR", False);
if (g_image_bmp_atom == None)
{
log_error("clipboard_init: g_image_bmp_atom was "
"not allocated");
}
g_wnd = XCreateSimpleWindow(g_display, RootWindowOfScreen(g_screen),
0, 0, 4, 4, 0, 0, 0);
input_mask = StructureNotifyMask | PropertyChangeMask;
XSelectInput(g_display, g_wnd, input_mask);
//XMapWindow(g_display, g_wnd);
XFixesSelectSelectionInput(g_display, g_wnd,
g_clipboard_atom,
XFixesSetSelectionOwnerNotifyMask |
XFixesSelectionWindowDestroyNotifyMask |
XFixesSelectionClientCloseNotifyMask);
}
make_stream(s);
if (rv == 0)
{
/* set clipboard caps first */
init_stream(s, 8192);
/* CLIPRDR_HEADER */
out_uint16_le(s, CB_CLIP_CAPS); /* msgType */
out_uint16_le(s, 0); /* msgFlags */
out_uint32_le(s, 16); /* dataLen */
out_uint16_le(s, 1); /* cCapabilitiesSets */
out_uint16_le(s, 0); /* pad1 */
/* CLIPRDR_GENERAL_CAPABILITY */
out_uint16_le(s, 1); /* capabilitySetType */
out_uint16_le(s, 12); /* lengthCapability */
out_uint32_le(s, g_cliprdr_version); /* version */
out_uint32_le(s, g_cliprdr_flags); /* generalFlags */
out_uint32_le(s, 0); /* extra 4 bytes ? */
s_mark_end(s);
size = (int)(s->end - s->data);
log_debug("clipboard_init: data out, sending "
"CB_CLIP_CAPS (clip_msg_id = 1)");
rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
if (rv != 0)
{
log_error("clipboard_init: send_channel_data failed "
"rv = %d", rv);
rv = 4;
}
}
if (rv == 0)
{
/* report clipboard ready */
init_stream(s, 8192);
out_uint16_le(s, CB_MONITOR_READY); /* msgType */
out_uint16_le(s, 0); /* msgFlags */
out_uint32_le(s, 0); /* dataLen */
out_uint32_le(s, 0); /* extra 4 bytes ? */
s_mark_end(s);
size = (int)(s->end - s->data);
log_debug("clipboard_init: data out, sending "
"CB_MONITOR_READY (clip_msg_id = 1)");
rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
if (rv != 0)
{
log_error("clipboard_init: send_channel_data failed "
"rv = %d", rv);
rv = 4;
}
}
free_stream(s);
if (rv == 0)
{
g_clip_up = 1;
make_stream(g_ins);
init_stream(g_ins, 8192);
}
else
{
log_error("xrdp-chansrv: clipboard_init: error on exit");
}
return rv;
}
/*****************************************************************************/
int
clipboard_deinit(void)
{
LOG(0, ("clipboard_deinit:"));
if (g_wnd != 0)
{
XDestroyWindow(g_display, g_wnd);
g_wnd = 0;
}
xfuse_deinit();
g_free(g_clip_c2s.data);
g_clip_c2s.data = 0;
g_free(g_clip_s2c.data);
g_clip_s2c.data = 0;
free_stream(g_ins);
g_ins = 0;
g_clip_up = 0;
return 0;
}
/*****************************************************************************/
static int
clipboard_send_data_request(int format_id)
{
struct stream *s;
int size;
int rv;
log_debug("clipboard_send_data_request:");
log_debug("clipboard_send_data_request: %d", format_id);
g_clip_c2s.in_request = 1;
make_stream(s);
init_stream(s, 8192);
out_uint16_le(s, CB_FORMAT_DATA_REQUEST); /* 4 CLIPRDR_DATA_REQUEST */
out_uint16_le(s, 0); /* status */
out_uint32_le(s, 4); /* length */
out_uint32_le(s, format_id);
out_uint32_le(s, 0);
s_mark_end(s);
size = (int)(s->end - s->data);
log_debug("clipboard_send_data_request: data out, sending "
"CLIPRDR_DATA_REQUEST (clip_msg_id = 4)");
rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
free_stream(s);
return rv;
}
/*****************************************************************************/
static int
clipboard_send_format_ack(void)
{
struct stream *s;
int size;
int rv;
make_stream(s);
init_stream(s, 8192);
out_uint16_le(s, CB_FORMAT_LIST_RESPONSE); /* 3 CLIPRDR_FORMAT_ACK */
out_uint16_le(s, CB_RESPONSE_OK); /* 1 status */
out_uint32_le(s, 0); /* length */
out_uint32_le(s, 0); /* extra 4 bytes */
s_mark_end(s);
size = (int)(s->end - s->data);
log_debug("clipboard_send_format_ack: data out, sending "
"CLIPRDR_FORMAT_ACK (clip_msg_id = 3)");
rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
free_stream(s);
return rv;
}
/*****************************************************************************/
/* returns number of bytes written */
int
clipboard_out_unicode(struct stream *s, const char *text, int num_chars)
{
int index;
int lnum_chars;
twchar *ltext;
if ((num_chars < 1) || (text == 0))
{
return 0;
}
lnum_chars = g_mbstowcs(0, text, num_chars);
if (lnum_chars < 0)
{
return 0;
}
ltext = (twchar *) g_malloc((num_chars + 1) * sizeof(twchar), 1);
g_mbstowcs(ltext, text, num_chars);
index = 0;
while (index < num_chars)
{
out_uint16_le(s, ltext[index]);
index++;
}
g_free(ltext);
return index * 2;
}
/*****************************************************************************/
/* returns number of bytes read */
int
clipboard_in_unicode(struct stream *s, char *text, int *num_chars)
{
int index;
twchar *ltext;
twchar chr;
if ((num_chars == 0) || (*num_chars < 1) || (text == 0))
{
return 0;
}
ltext = (twchar *) g_malloc(512 * sizeof(twchar), 1);
index = 0;
while (s_check_rem(s, 2))
{
in_uint16_le(s, chr);
if (index < 511)
{
ltext[index] = chr;
}
index++;
if (chr == 0)
{
break;
}
}
*num_chars = g_wcstombs(text, ltext, *num_chars);
g_free(ltext);
return index * 2;
}
static char windows_native_format[] =
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
/*****************************************************************************/
static int
clipboard_send_format_announce(int xrdp_clip_type)
{
struct stream *s;
int size;
int rv;
char *holdp;
log_debug("clipboard_send_format_announce:");
make_stream(s);
init_stream(s, 8192);
out_uint16_le(s, CB_FORMAT_LIST); /* 2 CLIPRDR_FORMAT_ANNOUNCE */
out_uint16_le(s, 0); /* status */
holdp = s->p;
out_uint32_le(s, 0); /* set later */
if (g_cliprdr_flags & CB_USE_LONG_FORMAT_NAMES)
{
switch (xrdp_clip_type)
{
case XRDP_CB_FILE:
log_debug("clipboard_send_format_announce: XRDP_CB_FILE");
/* canned response for "file" */
out_uint32_le(s, 0x0000c0bc);
clipboard_out_unicode(s, "FileGroupDescriptorW", 21);
out_uint32_le(s, 0x0000c0ba);
clipboard_out_unicode(s, "FileContents", 13);
out_uint32_le(s, 0x0000c0c1);
clipboard_out_unicode(s, "DropEffect", 11);
break;
case XRDP_CB_BITMAP:
log_debug("clipboard_send_format_announce: XRDP_CB_BITMAP");
/* canned response for "bitmap" */
out_uint32_le(s, 0x0000c004);
clipboard_out_unicode(s, "Native", 7);
out_uint32_le(s, 0x00000003);
clipboard_out_unicode(s, "", 1);
out_uint32_le(s, 0x00000008);
clipboard_out_unicode(s, "", 1);
out_uint32_le(s, 0x00000011);
clipboard_out_unicode(s, "", 1);
break;
case XRDP_CB_TEXT:
log_debug("clipboard_send_format_announce: XRDP_CB_TEXT");
/* canned response for "bitmap" */
out_uint32_le(s, 0x0000000d);
clipboard_out_unicode(s, "", 1);
out_uint32_le(s, 0x00000010);
clipboard_out_unicode(s, "", 1);
out_uint32_le(s, 0x00000001);
clipboard_out_unicode(s, "", 1);
out_uint32_le(s, 0x00000007);
clipboard_out_unicode(s, "", 1);
break;
default:
log_debug("clipboard_send_format_announce: unknown "
"xrdp_clip_type %d", xrdp_clip_type);
break;
}
}
else /* old method */
{
switch (xrdp_clip_type)
{
case XRDP_CB_FILE:
log_debug("clipboard_send_format_announce: XRDP_CB_FILE");
/* canned response for "file" */
out_uint32_le(s, 0x0000c0bc);
out_uint8p(s, windows_native_format, sizeof(windows_native_format));
out_uint32_le(s, 0x0000c0ba);
out_uint8p(s, windows_native_format, sizeof(windows_native_format));
out_uint32_le(s, 0x0000c0c1);
out_uint8p(s, windows_native_format, sizeof(windows_native_format));
break;
case XRDP_CB_BITMAP:
log_debug("clipboard_send_format_announce: XRDP_CB_BITMAP");
/* canned response for "bitmap" */
out_uint32_le(s, 0x0000c004);
out_uint8p(s, windows_native_format, sizeof(windows_native_format));
out_uint32_le(s, 0x00000003);
out_uint8p(s, windows_native_format, sizeof(windows_native_format));
out_uint32_le(s, 0x00000008);
out_uint8p(s, windows_native_format, sizeof(windows_native_format));
out_uint32_le(s, 0x00000011);
out_uint8p(s, windows_native_format, sizeof(windows_native_format));
break;
case XRDP_CB_TEXT:
log_debug("clipboard_send_format_announce: XRDP_CB_TEXT");
/* canned response for "bitmap" */
out_uint32_le(s, 0x0000000d);
out_uint8p(s, windows_native_format, sizeof(windows_native_format));
out_uint32_le(s, 0x00000010);
out_uint8p(s, windows_native_format, sizeof(windows_native_format));
out_uint32_le(s, 0x00000001);
out_uint8p(s, windows_native_format, sizeof(windows_native_format));
out_uint32_le(s, 0x00000007);
out_uint8p(s, windows_native_format, sizeof(windows_native_format));
break;
default:
log_debug("clipboard_send_format_announce: unknown "
"xrdp_clip_type %d", xrdp_clip_type);
break;
}
}
size = (int)(s->p - holdp);
size -= 4;
holdp[0] = (size >> 0) & 0xff;
holdp[1] = (size >> 8) & 0xff;
holdp[2] = (size >> 16) & 0xff;
holdp[3] = (size >> 24) & 0xff;
out_uint32_le(s, 0);
s_mark_end(s);
size = (int)(s->end - s->data);
//g_hexdump(s->data, size);
log_debug("clipboard_send_format_announce: data out, sending "
"CLIPRDR_FORMAT_ANNOUNCE (clip_msg_id = 2)");
rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
free_stream(s);
return rv;
}
/*****************************************************************************/
static int
clipboard_send_data_response_for_image(const char *data, int data_size)
{
struct stream *s;
int size;
int rv;
log_debug("clipboard_send_data_response_for_image: data_size %d",
data_size);
make_stream(s);
init_stream(s, 64 + data_size);
out_uint16_le(s, CB_FORMAT_DATA_RESPONSE); /* 5 CLIPRDR_DATA_RESPONSE */
out_uint16_le(s, CB_RESPONSE_OK); /* 1 status */
out_uint32_le(s, data_size); /* length */
out_uint8p(s, data, data_size);
out_uint32_le(s, 0);
s_mark_end(s);
size = (int)(s->end - s->data);
rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
free_stream(s);
return rv;
}
/*****************************************************************************/
static int
clipboard_send_data_response_for_text(const char *data, int data_size)
{
struct stream *s;
int size;
int rv;
int num_chars;
log_debug("clipboard_send_data_response_for_text: data_size %d",
data_size);
//g_hexdump(data, data_size);
num_chars = g_mbstowcs(0, data, 0);
if (num_chars < 0)
{
log_error("clipboard_send_data_response_for_text: "
"bad string");
num_chars = 0;
}
log_debug("clipboard_send_data_response_for_text: data_size %d "
"num_chars %d", data_size, num_chars);
make_stream(s);
init_stream(s, 64 + num_chars * 2);
out_uint16_le(s, CB_FORMAT_DATA_RESPONSE); /* 5 CLIPRDR_DATA_RESPONSE */
out_uint16_le(s, CB_RESPONSE_OK); /* 1 status */
out_uint32_le(s, num_chars * 2 + 2); /* length */
if (clipboard_out_unicode(s, data, num_chars) != num_chars * 2)
{
log_error("clipboard_send_data_response_for_text: error "
"clipboard_out_unicode didn't write right number of bytes");
}
out_uint16_le(s, 0); /* nil for string */
out_uint32_le(s, 0);
s_mark_end(s);
size = (int)(s->end - s->data);
log_debug("clipboard_send_data_response_for_text: data out, "
"sending CLIPRDR_DATA_RESPONSE (clip_msg_id = 5) size %d "
"num_chars %d", size, num_chars);
rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
free_stream(s);
return rv;
}
/*****************************************************************************/
static int
clipboard_send_data_response(int xrdp_clip_type, const char *data, int data_size)
{
log_debug("clipboard_send_data_response:");
if (data != 0)
{
if (xrdp_clip_type == XRDP_CB_FILE)
{
return clipboard_send_data_response_for_file(data, data_size);
}
else if (xrdp_clip_type == XRDP_CB_BITMAP)
{
return clipboard_send_data_response_for_image(data, data_size);
}
else if (xrdp_clip_type == XRDP_CB_TEXT)
{
return clipboard_send_data_response_for_text(data, data_size);
}
else
{
log_debug("clipboard_send_data_response: unknown "
"xrdp_clip_type %d", xrdp_clip_type);
}
}
else
{
log_error("clipboard_send_data_response: data is nil");
}
return 0;
}
/*****************************************************************************/
static int
clipboard_set_selection_owner(void)
{
Window owner;
log_debug("clipboard_set_selection_owner:");
g_selection_time = clipboard_get_server_time();
XSetSelectionOwner(g_display, g_clipboard_atom, g_wnd, g_selection_time);
owner = XGetSelectionOwner(g_display, g_clipboard_atom);
if (owner != g_wnd)
{
g_got_selection = 0;
return 1;
}
g_got_selection = 1;
return 0;
}
/*****************************************************************************/
static int
clipboard_provide_selection_c2s(XSelectionRequestEvent *req, Atom type)
{
XEvent xev;
long val1[2];
log_debug("clipboard_provide_selection_c2s: bytes %d",
g_clip_c2s.total_bytes);
if (g_clip_c2s.total_bytes < g_incr_max_req_size)
{
XChangeProperty(g_display, req->requestor, req->property,
type, 8, PropModeReplace,
(tui8 *)g_clip_c2s.data, g_clip_c2s.total_bytes);
g_memset(&xev, 0, sizeof(xev));
xev.xselection.type = SelectionNotify;
xev.xselection.send_event = True;
xev.xselection.display = req->display;
xev.xselection.requestor = req->requestor;
xev.xselection.selection = req->selection;
xev.xselection.target = req->target;
xev.xselection.property = req->property;
xev.xselection.time = req->time;
XSendEvent(g_display, req->requestor, False, NoEventMask, &xev);
}
else
{
/* start the INCR process */
g_clip_c2s.incr_in_progress = 1;
g_clip_c2s.incr_bytes_done = 0;
g_clip_c2s.type = type;
g_clip_c2s.property = req->property;
g_clip_c2s.window = req->requestor;
log_debug("clipboard_provide_selection_c2s: start INCR property %s "
"type %s", get_atom_text(req->property),
get_atom_text(type));
val1[0] = g_clip_c2s.total_bytes;
val1[1] = 0;
XChangeProperty(g_display, req->requestor, req->property,
g_incr_atom, 32, PropModeReplace, (tui8 *)val1, 1);
/* we need events from that other window */
XSelectInput(g_display, req->requestor, PropertyChangeMask);
g_memset(&xev, 0, sizeof(xev));
xev.xselection.type = SelectionNotify;
xev.xselection.send_event = True;
xev.xselection.display = req->display;
xev.xselection.requestor = req->requestor;
xev.xselection.selection = req->selection;
xev.xselection.target = req->target;
xev.xselection.property = req->property;
xev.xselection.time = req->time;
XSendEvent(g_display, req->requestor, False, NoEventMask, &xev);
}
return 0;
}
/*****************************************************************************/
static int
clipboard_provide_selection(XSelectionRequestEvent *req, Atom type, int format,
char *data, int length)
{
XEvent xev;
int bytes;
bytes = FORMAT_TO_BYTES(format);
bytes *= length;
log_debug("clipboard_provide_selection: bytes %d", bytes);
if (bytes < g_incr_max_req_size)
{
XChangeProperty(g_display, req->requestor, req->property,
type, format, PropModeReplace, (tui8 *)data, length);
g_memset(&xev, 0, sizeof(xev));
xev.xselection.type = SelectionNotify;
xev.xselection.send_event = True;
xev.xselection.display = req->display;
xev.xselection.requestor = req->requestor;
xev.xselection.selection = req->selection;
xev.xselection.target = req->target;
xev.xselection.property = req->property;
xev.xselection.time = req->time;
XSendEvent(g_display, req->requestor, False, NoEventMask, &xev);
return 0;
}
return 1;
}
/*****************************************************************************/
static int
clipboard_refuse_selection(XSelectionRequestEvent *req)
{
XEvent xev;
g_memset(&xev, 0, sizeof(xev));
xev.xselection.type = SelectionNotify;
xev.xselection.send_event = True;
xev.xselection.display = req->display;
xev.xselection.requestor = req->requestor;
xev.xselection.selection = req->selection;
xev.xselection.target = req->target;
xev.xselection.property = None;
xev.xselection.time = req->time;
XSendEvent(g_display, req->requestor, False, NoEventMask, &xev);
return 0;
}
/*****************************************************************************/
/* sent by client or server when its local system clipboard is
updated with new clipboard data; contains Clipboard Format ID
and name pairs of new Clipboard Formats on the clipboard. */
static int
clipboard_process_format_announce(struct stream *s, int clip_msg_status,
int clip_msg_len)
{
int formatId;
int count;
int bytes;
char desc[256];
char *holdp;
log_debug("clipboard_process_format_announce: "
"CLIPRDR_FORMAT_ANNOUNCE");
log_debug("clipboard_process_format_announce %d", clip_msg_len);
clipboard_send_format_ack();
xfuse_clear_clip_dir();
g_clip_c2s.converted = 0;
desc[0] = 0;
g_num_formatIds = 0;
while (clip_msg_len > 3)
{
in_uint32_le(s, formatId);
clip_msg_len -= 4;
if (g_cliprdr_flags & CB_USE_LONG_FORMAT_NAMES)
{
/* CLIPRDR_LONG_FORMAT_NAME */
count = 255;
bytes = clipboard_in_unicode(s, desc, &count);
clip_msg_len -= bytes;
}
else
{
/* CLIPRDR_SHORT_FORMAT_NAME */
/* 32 ASCII 8 characters or 16 Unicode characters */
count = 15;
holdp = s->p;
clipboard_in_unicode(s, desc, &count);
s->p = holdp + 32;
desc[15] = 0;
clip_msg_len -= 32;
}
log_debug("clipboard_process_format_announce: formatId 0x%8.8x "
"wszFormatName [%s] clip_msg_len %d", formatId, desc,
clip_msg_len);
if (g_num_formatIds <= 15)
{
g_formatIds[g_num_formatIds] = formatId;
g_num_formatIds++;
}
if (g_num_formatIds > 15)
{
log_debug("clipboard_process_format_announce: max formats");
}
/* format id for file copy copy seems to keep changing */
/* seen 0x0000c0c8, 0x0000c0ed */
if (g_strcmp(desc, "FileGroupDescriptorW") == 0)
{
g_file_format_id = formatId;
}
}
if ((g_num_formatIds > 0) &&
(g_clip_c2s.incr_in_progress == 0) && /* don't interrupt incr */
(g_clip_s2c.incr_in_progress == 0))
{
if (clipboard_set_selection_owner() != 0)
{
log_error("clipboard_process_format_announce: "
"XSetSelectionOwner failed");
}
}
return 0;
}
/*****************************************************************************/
/* response to CB_FORMAT_LIST; used to indicate whether
processing of the Format List PDU was successful */
static int
clipboard_process_format_ack(struct stream *s, int clip_msg_status,
int clip_msg_len)
{
log_debug("clipboard_process_format_ack: CLIPRDR_FORMAT_ACK");
log_debug("clipboard_process_format_ack:");
return 0;
}
/*****************************************************************************/
static int
clipboard_send_data_response_failed(void)
{
struct stream *s;
int size;
int rv;
log_error("clipboard_send_data_response_failed:");
make_stream(s);
init_stream(s, 64);
out_uint16_le(s, CB_FORMAT_DATA_RESPONSE); /* 5 CLIPRDR_DATA_RESPONSE */
out_uint16_le(s, CB_RESPONSE_FAIL); /* 2 status */
out_uint32_le(s, 0);
s_mark_end(s);
size = (int)(s->end - s->data);
rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
free_stream(s);
return rv;
}
/*****************************************************************************/
/* sent from server to client
* sent by recipient of CB_FORMAT_LIST; used to request data for one
* of the formats that was listed in CB_FORMAT_LIST */
static int
clipboard_process_data_request(struct stream *s, int clip_msg_status,
int clip_msg_len)
{
int requestedFormatId;
log_debug("clipboard_process_data_request: "
"CLIPRDR_DATA_REQUEST");
log_debug("clipboard_process_data_request:");
log_debug(" %d", g_clip_s2c.xrdp_clip_type);
in_uint32_le(s, requestedFormatId);
switch (requestedFormatId)
{
case CB_FORMAT_FILE: /* 0xC0BC */
if ((g_clip_s2c.xrdp_clip_type == XRDP_CB_FILE) && g_clip_s2c.converted)
{
log_debug("clipboard_process_data_request: CB_FORMAT_FILE");
clipboard_send_data_response(XRDP_CB_FILE, g_clip_s2c.data,
g_clip_s2c.total_bytes);
}
else
{
log_debug("clipboard_process_data_request: CB_FORMAT_FILE, "
"calling XConvertSelection to g_utf8_atom");
g_clip_s2c.xrdp_clip_type = XRDP_CB_FILE;
XConvertSelection(g_display, g_clipboard_atom, g_clip_s2c.type,
g_clip_property_atom, g_wnd, CurrentTime);
}
break;
case CB_FORMAT_DIB: /* 0x0008 */
if ((g_clip_s2c.xrdp_clip_type == XRDP_CB_BITMAP) && g_clip_s2c.converted)
{
log_debug("clipboard_process_data_request: CB_FORMAT_DIB");
clipboard_send_data_response(XRDP_CB_BITMAP, g_clip_s2c.data,
g_clip_s2c.total_bytes);
}
else
{
log_debug("clipboard_process_data_request: CB_FORMAT_DIB, "
"calling XConvertSelection to g_image_bmp_atom");
g_clip_s2c.xrdp_clip_type = XRDP_CB_BITMAP;
XConvertSelection(g_display, g_clipboard_atom, g_image_bmp_atom,
g_clip_property_atom, g_wnd, CurrentTime);
}
break;
case CB_FORMAT_UNICODETEXT: /* 0x000D */
if ((g_clip_s2c.xrdp_clip_type == XRDP_CB_TEXT) && g_clip_s2c.converted)
{
log_debug("clipboard_process_data_request: CB_FORMAT_UNICODETEXT");
clipboard_send_data_response(XRDP_CB_TEXT, g_clip_s2c.data,
g_clip_s2c.total_bytes);
}
else
{
log_debug("clipboard_process_data_request: CB_FORMAT_UNICODETEXT, "
"calling XConvertSelection to g_utf8_atom");
g_clip_s2c.xrdp_clip_type = XRDP_CB_TEXT;
XConvertSelection(g_display, g_clipboard_atom, g_utf8_atom,
g_clip_property_atom, g_wnd, CurrentTime);
}
break;
default:
log_debug("clipboard_process_data_request: unknown type %d",
requestedFormatId);
clipboard_send_data_response_failed();
break;
}
return 0;
}
/*****************************************************************************/
/* client to server */
/* sent as a reply to CB_FORMAT_DATA_REQUEST; used to indicate whether
processing of the CB_FORMAT_DATA_REQUEST was successful; if processing
was successful, CB_FORMAT_DATA_RESPONSE includes contents of requested
clipboard data. */
static int
clipboard_process_data_response_for_image(struct stream *s,
int clip_msg_status,
int clip_msg_len)
{
XSelectionRequestEvent *lxev;
int len;
log_debug("clipboard_process_data_response_for_image: "
"CLIPRDR_DATA_RESPONSE_FOR_IMAGE");
lxev = &g_saved_selection_req_event;
len = (int)(s->end - s->p);
if (len < 1)
{
return 0;
}
if (g_clip_c2s.type != g_image_bmp_atom)
{
return 0;
}
g_free(g_clip_c2s.data);
g_clip_c2s.data = (char *) g_malloc(len + 14, 0);
if (g_clip_c2s.data == 0)
{
g_clip_c2s.total_bytes = 0;
return 0;
}
g_clip_c2s.total_bytes = len;
g_clip_c2s.read_bytes_done = g_clip_c2s.total_bytes;
g_memcpy(g_clip_c2s.data, g_bmp_image_header, 14);
in_uint8a(s, g_clip_c2s.data + 14, len);
log_debug("clipboard_process_data_response_for_image: calling "
"clipboard_provide_selection_c2s");
clipboard_provide_selection_c2s(lxev, lxev->target);
return 0;
}
/*****************************************************************************/
/* client to server */
/* sent as a reply to CB_FORMAT_DATA_REQUEST; used to indicate whether
processing of the CB_FORMAT_DATA_REQUEST was successful; if processing was
successful, CB_FORMAT_DATA_RESPONSE includes contents of requested
clipboard data. */
/*****************************************************************************/
static int
clipboard_process_data_response(struct stream *s, int clip_msg_status,
int clip_msg_len)
{
XSelectionRequestEvent *lxev;
twchar *wtext;
twchar wchr;
int len;
int index;
log_debug("clipboard_process_data_response:");
lxev = &g_saved_selection_req_event;
g_clip_c2s.in_request = 0;
if (g_clip_c2s.xrdp_clip_type == XRDP_CB_BITMAP)
{
clipboard_process_data_response_for_image(s, clip_msg_status,
clip_msg_len);
return 0;
}
if (g_clip_c2s.xrdp_clip_type == XRDP_CB_FILE)
{
g_free(g_clip_c2s.data);
g_clip_c2s.data = (char *)g_malloc(1024 * 1024, 1);
/* text/uri-list */
if (g_clip_c2s.type == g_file_atom1)
{
clipboard_c2s_in_files(s, g_clip_c2s.data);
}
/* x-special/gnome-copied-files */
else if (g_clip_c2s.type == g_file_atom2)
{
g_strcpy(g_clip_c2s.data, "copy\n");
clipboard_c2s_in_files(s, g_clip_c2s.data + 5);
}
else
{
log_error("clipboard_process_data_response: error");
}
g_clip_c2s.total_bytes = g_strlen(g_clip_c2s.data);
g_clip_c2s.read_bytes_done = g_clip_c2s.total_bytes;
clipboard_provide_selection_c2s(lxev, lxev->target);
return 0;
}
log_debug("clipboard_process_data_response: "
"CLIPRDR_DATA_RESPONSE");
len = (int)(s->end - s->p);
if (len < 1)
{
return 0;
}
wtext = (twchar *) g_malloc(((len / 2) + 1) * sizeof(twchar), 0);
if (wtext == 0)
{
return 0;
}
index = 0;
while (s_check(s))
{
in_uint16_le(s, wchr);
wtext[index] = wchr;
if (wchr == 0)
{
break;
}
index++;
}
wtext[index] = 0;
g_free(g_clip_c2s.data);
g_clip_c2s.data = 0;
g_clip_c2s.total_bytes = 0;
len = g_wcstombs(0, wtext, 0);
if (len >= 0)
{
g_clip_c2s.data = (char *) g_malloc(len + 16, 0);
if (g_clip_c2s.data == 0)
{
g_free(wtext);
return 0;
}
g_wcstombs(g_clip_c2s.data, wtext, len + 1);
}
if (g_clip_c2s.data != 0)
{
g_clip_c2s.total_bytes = g_strlen(g_clip_c2s.data);
g_clip_c2s.read_bytes_done = g_clip_c2s.total_bytes;
clipboard_provide_selection_c2s(lxev, lxev->target);
}
g_free(wtext);
return 0;
}
/*****************************************************************************/
static int
clipboard_process_clip_caps(struct stream *s, int clip_msg_status,
int clip_msg_len)
{
int cCapabilitiesSets;
int capabilitySetType;
int lengthCapability;
int index;
int version;
int flags;
char *holdp;
log_debug("clipboard_process_clip_caps:");
//g_hexdump(s->p, s->end - s->p);
in_uint16_le(s, cCapabilitiesSets);
in_uint8s(s, 2); /* pad */
for (index = 0; index < cCapabilitiesSets; index++)
{
holdp = s->p;
in_uint16_le(s, capabilitySetType);
in_uint16_le(s, lengthCapability);
switch (capabilitySetType)
{
case CB_CAPSTYPE_GENERAL:
in_uint32_le(s, version); /* version */
in_uint32_le(s, flags); /* generalFlags */
log_debug("clipboard_process_clip_caps: "
"g_cliprdr_version %d version %d "
"g_cliprdr_flags 0x%x flags 0x%x",
g_cliprdr_version, version,
g_cliprdr_flags, flags);
if (version < g_cliprdr_version)
{
g_cliprdr_version = version;
}
g_cliprdr_flags &= flags;
break;
default:
log_debug("clipboard_process_clip_caps: unknown "
"capabilitySetType %d", capabilitySetType);
break;
}
s->p = holdp + lengthCapability;
}
return 0;
}
/*****************************************************************************/
static int
ss_part(char *data, int data_bytes)
{
int index;
char *text;
log_debug("ss_part: data_bytes %d read_bytes_done %d "
"incr_bytes_done %d", data_bytes,
g_clip_c2s.read_bytes_done,
g_clip_c2s.incr_bytes_done);
/* copy to buffer */
if (g_clip_c2s.type == g_utf8_atom)
{
/* todo unicode */
text = (char *)g_malloc(data_bytes, 0);
index = 0;
data_bytes /= 2;
while (index < data_bytes)
{
text[index] = data[index * 2];
index++;
}
text[index] = 0;
g_memcpy(g_clip_c2s.data + g_clip_c2s.read_bytes_done, text, data_bytes);
g_clip_c2s.read_bytes_done += data_bytes;
g_free(text);
}
else
{
g_memcpy(g_clip_c2s.data + g_clip_c2s.read_bytes_done, data, data_bytes);
g_clip_c2s.read_bytes_done += data_bytes;
}
if (g_clip_c2s.incr_in_progress)
{
log_debug("ss_part: incr_in_progress set");
return 0;
}
if (g_clip_c2s.read_bytes_done <= g_clip_c2s.incr_bytes_done)
{
log_debug("ss_part: read_bytes_done < incr_bytes_done");
return 0;
}
data = g_clip_c2s.data + g_clip_c2s.incr_bytes_done;
data_bytes = g_clip_c2s.read_bytes_done - g_clip_c2s.incr_bytes_done;
if (data_bytes > g_incr_max_req_size)
{
data_bytes = g_incr_max_req_size;
}
g_clip_c2s.incr_bytes_done += data_bytes;
XChangeProperty(g_display, g_clip_c2s.window,
g_clip_c2s.property, g_clip_c2s.type, 8,
PropModeReplace, (tui8 *)data, data_bytes);
g_clip_c2s.incr_in_progress = 1;
return 0;
}
/*****************************************************************************/
static int
ss_end(void)
{
char *data;
int data_bytes;
log_debug("ss_end:");
g_clip_c2s.doing_response_ss = 0;
g_clip_c2s.in_request = 0;
if (g_clip_c2s.incr_in_progress)
{
log_debug("ss_end: incr_in_progress set");
return 0;
}
if (g_clip_c2s.read_bytes_done <= g_clip_c2s.incr_bytes_done)
{
log_debug("ss_end: read_bytes_done < incr_bytes_done");
return 0;
}
data = g_clip_c2s.data + g_clip_c2s.incr_bytes_done;
data_bytes = g_clip_c2s.read_bytes_done - g_clip_c2s.incr_bytes_done;
if (data_bytes > g_incr_max_req_size)
{
data_bytes = g_incr_max_req_size;
}
g_clip_c2s.incr_bytes_done += data_bytes;
XChangeProperty(g_display, g_clip_c2s.window,
g_clip_c2s.property, g_clip_c2s.type, 8,
PropModeReplace, (tui8 *)data, data_bytes);
g_clip_c2s.incr_in_progress = 1;
return 0;
}
/*****************************************************************************/
static int
ss_start(char *data, int data_bytes, int total_bytes)
{
XEvent xev;
XSelectionRequestEvent *req;
long val1[2];
int incr_bytes;
log_debug("ss_start: data_bytes %d total_bytes %d",
data_bytes, total_bytes);
req = &g_saved_selection_req_event;
incr_bytes = total_bytes;
if (req->target == g_image_bmp_atom)
{
incr_bytes += 14;
}
else if (req->target == g_utf8_atom)
{
incr_bytes /= 2;
}
val1[0] = incr_bytes; /* a guess */
val1[1] = 0;
g_clip_c2s.doing_response_ss = 1;
g_clip_c2s.incr_bytes_done = 0;
g_clip_c2s.read_bytes_done = 0;
g_clip_c2s.type = req->target;
g_clip_c2s.property = req->property;
g_clip_c2s.window = req->requestor;
g_free(g_clip_c2s.data);
g_clip_c2s.data = (char *)g_malloc(incr_bytes + 64, 0);
g_clip_c2s.total_bytes = incr_bytes;
XChangeProperty(g_display, req->requestor, req->property,
g_incr_atom, 32, PropModeReplace, (tui8 *)val1, 1);
/* we need events from that other window */
XSelectInput(g_display, req->requestor, PropertyChangeMask);
g_memset(&xev, 0, sizeof(xev));
xev.xselection.type = SelectionNotify;
xev.xselection.send_event = True;
xev.xselection.display = req->display;
xev.xselection.requestor = req->requestor;
xev.xselection.selection = req->selection;
xev.xselection.target = req->target;
xev.xselection.property = req->property;
xev.xselection.time = req->time;
XSendEvent(g_display, req->requestor, False, NoEventMask, &xev);
if (req->target == g_image_bmp_atom)
{
g_memcpy(g_clip_c2s.data, g_bmp_image_header, 14);
g_clip_c2s.read_bytes_done = 14;
}
g_clip_c2s.incr_in_progress = 1;
ss_part(data, data_bytes);
return 0;
}
/*****************************************************************************/
int
clipboard_data_in(struct stream *s, int chan_id, int chan_flags, int length,
int total_length)
{
int clip_msg_id;
int clip_msg_len;
int clip_msg_status;
int rv;
struct stream *ls;
char *holdp;
if (!g_clip_up)
{
log_error("aborting clipboard_data_in - clipboard has not "
"been initialized");
/* we return 0 here to indicate no protocol problem occurred */
return 0;
}
log_debug("clipboard_data_in: chan_id %d "
"chan_flags 0x%x length %d total_length %d "
"in_request %d g_ins->size %d",
chan_id, chan_flags, length, total_length,
g_clip_c2s.in_request, g_ins->size);
if (g_clip_c2s.doing_response_ss)
{
ss_part(s->p, length);
if ((chan_flags & 3) == 2)
{
log_debug("clipboard_data_in: calling ss_end");
ss_end();
}
return 0;
}
if (g_clip_c2s.in_request)
{
if (total_length > 32 * 1024)
{
if ((chan_flags & 3) == 1)
{
holdp = s->p;
in_uint16_le(s, clip_msg_id);
in_uint16_le(s, clip_msg_status);
in_uint32_le(s, clip_msg_len);
if (clip_msg_id == CB_FORMAT_DATA_RESPONSE)
{
ss_start(s->p, length - 8, total_length - 8);
return 0;
}
s->p = holdp;
}
}
}
if ((chan_flags & 3) == 3)
{
ls = s;
}
else
{
if (chan_flags & 1)
{
init_stream(g_ins, total_length);
}
in_uint8a(s, g_ins->end, length);
g_ins->end += length;
if ((chan_flags & 2) == 0)
{
return 0;
}
ls = g_ins;
}
in_uint16_le(ls, clip_msg_id);
in_uint16_le(ls, clip_msg_status);
in_uint32_le(ls, clip_msg_len);
log_debug("clipboard_data_in: clip_msg_id %d "
"clip_msg_status %d clip_msg_len %d",
clip_msg_id, clip_msg_status, clip_msg_len);
rv = 0;
log_debug("clipboard_data_in: %d", clip_msg_id);
switch (clip_msg_id)
{
/* sent by client or server when its local system clipboard is */
/* updated with new clipboard data; contains Clipboard Format ID */
/* and name pairs of new Clipboard Formats on the clipboard. */
case CB_FORMAT_LIST: /* 2 CLIPRDR_FORMAT_ANNOUNCE */
rv = clipboard_process_format_announce(ls, clip_msg_status,
clip_msg_len);
break;
/* response to CB_FORMAT_LIST; used to indicate whether */
/* processing of the Format List PDU was successful */
case CB_FORMAT_LIST_RESPONSE: /* 3 CLIPRDR_FORMAT_ACK */
rv = clipboard_process_format_ack(ls, clip_msg_status,
clip_msg_len);
break;
/* sent by recipient of CB_FORMAT_LIST; used to request data for one */
/* of the formats that was listed in CB_FORMAT_LIST */
case CB_FORMAT_DATA_REQUEST: /* 4 CLIPRDR_DATA_REQUEST */
rv = clipboard_process_data_request(ls, clip_msg_status,
clip_msg_len);
break;
/* sent as a reply to CB_FORMAT_DATA_REQUEST; used to indicate */
/* whether processing of the CB_FORMAT_DATA_REQUEST was */
/* successful; if processing was successful, */
/* CB_FORMAT_DATA_RESPONSE includes contents of requested */
/* clipboard data. */
case CB_FORMAT_DATA_RESPONSE: /* 5 CLIPRDR_DATA_RESPONSE */
rv = clipboard_process_data_response(ls, clip_msg_status,
clip_msg_len);
break;
case CB_CLIP_CAPS: /* 7 */
rv = clipboard_process_clip_caps(ls, clip_msg_status,
clip_msg_len);
break;
case CB_FILECONTENTS_REQUEST: /* 8 */
rv = clipboard_process_file_request(ls, clip_msg_status,
clip_msg_len);
break;
case CB_FILECONTENTS_RESPONSE: /* 9 */
rv = clipboard_process_file_response(ls, clip_msg_status,
clip_msg_len);
break;
default:
log_debug("clipboard_data_in: unknown clip_msg_id %d", clip_msg_id);
log_error("clipboard_data_in: unknown clip_msg_id %d",
clip_msg_id);
break;
}
XFlush(g_display);
return rv;
}
/*****************************************************************************/
/* this happens when a new app copies something to the clipboard
'CLIPBOARD' Atom
typedef struct
{
int type;
unsigned long serial;
Bool send_event;
Display *display;
Window window;
int subtype;
Window owner;
Atom selection;
Time timestamp;
Time selection_timestamp;
} XFixesSelectionNotifyEvent; */
static int
clipboard_event_selection_owner_notify(XEvent *xevent)
{
XFixesSelectionNotifyEvent *lxevent;
lxevent = (XFixesSelectionNotifyEvent *)xevent;
log_debug("clipboard_event_selection_owner_notify: 0x%lx", lxevent->owner);
log_debug("clipboard_event_selection_owner_notify: "
"window %ld subtype %d owner %ld g_wnd %ld",
lxevent->window, lxevent->subtype, lxevent->owner, g_wnd);
if (lxevent->owner == g_wnd)
{
log_debug("clipboard_event_selection_owner_notify: matches g_wnd");
log_debug("clipboard_event_selection_owner_notify: skipping, "
"owner == g_wnd");
g_got_selection = 1;
return 0;
}
g_got_selection = 0;
if (lxevent->owner != 0) /* nil owner comes when selection */
{
/* window is closed */
XConvertSelection(g_display, g_clipboard_atom, g_targets_atom,
g_clip_property_atom, g_wnd, lxevent->timestamp);
}
return 0;
}
/*****************************************************************************/
/* returns error
get a window property from wnd */
static int
clipboard_get_window_property(Window wnd, Atom prop, Atom *type, int *fmt,
int *n_items, char **xdata, int *xdata_size)
{
int lfmt;
int lxdata_size;
unsigned long ln_items;
unsigned long llen_after;
tui8 *lxdata;
Atom ltype;
log_debug("clipboard_get_window_property:");
log_debug(" prop %ld name %s", prop, get_atom_text(prop));
lxdata = 0;
ltype = 0;
XGetWindowProperty(g_display, wnd, prop, 0, 0, 0,
AnyPropertyType, &ltype, &lfmt, &ln_items,
&llen_after, &lxdata);
if (lxdata != 0)
{
XFree(lxdata);
}
if (ltype == 0)
{
/* XGetWindowProperty failed */
return 4;
}
if (llen_after < 1)
{
/* no data, ok */
return 0;
}
lxdata = 0;
ltype = 0;
XGetWindowProperty(g_display, wnd, prop, 0, (llen_after + 3) / 4, 0,
AnyPropertyType, &ltype, &lfmt, &ln_items,
&llen_after, &lxdata);
if (ltype == 0)
{
/* XGetWindowProperty failed */
if (lxdata != 0)
{
XFree(lxdata);
}
return 1;
}
lxdata_size = FORMAT_TO_BYTES(lfmt);
lxdata_size *= ln_items;
if (lxdata_size < 1)
{
/* should not happen */
if (lxdata != 0)
{
XFree(lxdata);
}
return 2;
}
if (llen_after > 0)
{
/* should not happen */
if (lxdata != 0)
{
XFree(lxdata);
}
return 3;
}
if (xdata != 0)
{
*xdata = (char *) g_malloc(lxdata_size, 0);
g_memcpy(*xdata, lxdata, lxdata_size);
}
if (lxdata != 0)
{
XFree(lxdata);
}
if (xdata_size != 0)
{
*xdata_size = lxdata_size;
}
if (fmt != 0)
{
*fmt = (int)lfmt;
}
if (n_items != 0)
{
*n_items = (int)ln_items;
}
if (type != 0)
{
*type = ltype;
}
return 0;
}
/*****************************************************************************/
/* returns error
process the SelectionNotify X event, uses XSelectionEvent
typedef struct {
int type; // SelectionNotify
unsigned long serial; // # of last request processed by server
Bool send_event; // true if this came from a SendEvent request
Display *display; // Display the event was read from
Window requestor;
Atom selection;
Atom target;
Atom property; // atom or None
Time time;
} XSelectionEvent; */
static int
clipboard_event_selection_notify(XEvent *xevent)
{
XSelectionEvent *lxevent;
char *data;
int data_size;
int n_items;
int fmt;
int rv;
int index;
int got_string;
int got_utf8;
int got_bmp_image;
int send_format_announce;
Atom got_file_atom;
Atom atom;
Atom *atoms;
Atom type;
log_debug("clipboard_event_selection_notify:");
data_size = 0;
n_items = 0;
fmt = 0;
got_string = 0;
got_utf8 = 0;
got_bmp_image = 0;
got_file_atom = 0;
send_format_announce = 0;
rv = 0;
data = 0;
type = 0;
lxevent = (XSelectionEvent *)xevent;
if (lxevent->property == None)
{
log_error("clipboard_event_selection_notify: clip could "
"not be converted");
rv = 1;
}
if (rv == 0)
{
log_debug("clipboard_event_selection_notify: wnd 0x%lx prop %s",
lxevent->requestor,
get_atom_text(lxevent->property));
rv = clipboard_get_window_property(lxevent->requestor, lxevent->property,
&type, &fmt,
&n_items, &data, &data_size);
if (rv != 0)
{
log_error("clipboard_event_selection_notify: "
"clipboard_get_window_property failed error %d", rv);
return 0;
}
//g_hexdump(data, data_size);
XDeleteProperty(g_display, lxevent->requestor, lxevent->property);
if (type == g_incr_atom)
{
/* nothing more to do here, the data is coming in through
PropertyNotify */
log_debug("clipboard_event_selection_notify: type is INCR "
"data_size %d property name %s type %s", data_size,
get_atom_text(lxevent->property),
get_atom_text(lxevent->type));
g_clip_s2c.incr_in_progress = 1;
g_clip_s2c.property = lxevent->property;
g_clip_s2c.type = lxevent->target;
g_clip_s2c.total_bytes = 0;
g_free(g_clip_s2c.data);
g_clip_s2c.data = 0;
//g_hexdump(data, sizeof(long));
g_free(data);
return 0;
}
}
if (rv == 0)
{
if (lxevent->selection == g_clipboard_atom)
{
if (lxevent->target == g_targets_atom)
{
/* 32 implies long */
if ((type == XA_ATOM) && (fmt == 32))
{
atoms = (Atom *)data;
for (index = 0; index < n_items; index++)
{
atom = atoms[index];
LOGM((LOG_LEVEL_DEBUG,
"clipboard_event_selection_notify: 0x%lx %s 0x%lx",
atom, get_atom_text(atom), XA_STRING));
log_debug("clipboard_event_selection_notify: 0x%lx %s",
atom, get_atom_text(atom));
if (atom == g_utf8_atom)
{
got_utf8 = 1;
}
else if (atom == XA_STRING)
{
got_string = 1;
}
else if (atom == g_image_bmp_atom)
{
got_bmp_image = 1;
}
else if ((atom == g_file_atom1) || (atom == g_file_atom2))
{
log_debug("clipboard_event_selection_notify: file");
got_file_atom = atom;
}
else
{
log_error("clipboard_event_selection_notify: unknown atom 0x%lx", atom);
}
}
}
else
{
log_error("clipboard_event_selection_notify: error, "
"target is 'TARGETS' and type[%ld] or fmt[%d] not right, "
"should be type[%ld], fmt[%d]", type, fmt, XA_ATOM, 32);
}
}
else if (lxevent->target == g_utf8_atom)
{
log_debug("clipboard_event_selection_notify: UTF8_STRING "
"data_size %d", data_size);
log_debug("clipboard_event_selection_notify: UTF8_STRING "
"data_size %d", data_size);
if ((g_clip_s2c.incr_in_progress == 0) && (data_size > 0))
{
g_free(g_clip_s2c.data);
g_clip_s2c.total_bytes = data_size;
g_clip_s2c.data = (char *) g_malloc(g_clip_s2c.total_bytes + 1, 0);
g_memcpy(g_clip_s2c.data, data, g_clip_s2c.total_bytes);
g_clip_s2c.data[g_clip_s2c.total_bytes] = 0;
if (g_clip_s2c.xrdp_clip_type == XRDP_CB_FILE)
{
clipboard_send_data_response_for_file(g_clip_s2c.data,
g_clip_s2c.total_bytes);
}
else
{
clipboard_send_data_response_for_text(g_clip_s2c.data,
g_clip_s2c.total_bytes);
}
}
}
else if (lxevent->target == XA_STRING)
{
log_debug("clipboard_event_selection_notify: XA_STRING "
"data_size %d", data_size);
log_debug("clipboard_event_selection_notify: XA_STRING "
"data_size %d", data_size);
if ((g_clip_s2c.incr_in_progress == 0) && (data_size > 0))
{
g_free(g_clip_s2c.data);
g_clip_s2c.total_bytes = data_size;
g_clip_s2c.data = (char *) g_malloc(g_clip_s2c.total_bytes + 1, 0);
g_memcpy(g_clip_s2c.data, data, g_clip_s2c.total_bytes);
g_clip_s2c.data[g_clip_s2c.total_bytes] = 0;
clipboard_send_data_response_for_text(g_clip_s2c.data,
g_clip_s2c.total_bytes);
}
}
else if (lxevent->target == g_image_bmp_atom)
{
log_debug("clipboard_event_selection_notify: image/bmp "
"data_size %d", data_size);
log_debug("clipboard_event_selection_notify: image/bmp "
"data_size %d", data_size);
if ((g_clip_s2c.incr_in_progress == 0) && (data_size > 14))
{
g_free(g_clip_s2c.data);
g_clip_s2c.total_bytes = data_size;
g_clip_s2c.data = (char *) g_malloc(data_size, 0);
g_memcpy(g_clip_s2c.data, data, data_size);
clipboard_send_data_response_for_image(g_clip_s2c.data + 14,
data_size - 14);
}
}
else if (lxevent->target == g_file_atom1)
{
log_debug("clipboard_event_selection_notify: text/uri-list "
"data_size %d", data_size);
log_debug("clipboard_event_selection_notify: text/uri-list "
"data_size %d", data_size);
if ((g_clip_s2c.incr_in_progress == 0) && (data_size > 0))
{
g_free(g_clip_s2c.data);
g_clip_s2c.total_bytes = data_size;
g_clip_s2c.data = (char *) g_malloc(g_clip_s2c.total_bytes + 1, 0);
g_memcpy(g_clip_s2c.data, data, g_clip_s2c.total_bytes);
g_clip_s2c.data[g_clip_s2c.total_bytes] = 0;
clipboard_send_data_response_for_file(g_clip_s2c.data,
g_clip_s2c.total_bytes);
}
}
else if (lxevent->target == g_file_atom2)
{
log_debug("clipboard_event_selection_notify: text/uri-list "
"data_size %d", data_size);
log_debug("clipboard_event_selection_notify: text/uri-list "
"data_size %d", data_size);
if ((g_clip_s2c.incr_in_progress == 0) && (data_size > 0))
{
g_free(g_clip_s2c.data);
g_clip_s2c.total_bytes = data_size;
g_clip_s2c.data = (char *) g_malloc(g_clip_s2c.total_bytes + 1, 0);
g_memcpy(g_clip_s2c.data, data, g_clip_s2c.total_bytes);
g_clip_s2c.data[g_clip_s2c.total_bytes] = 0;
clipboard_send_data_response_for_file(g_clip_s2c.data,
g_clip_s2c.total_bytes);
}
}
else
{
log_error("clipboard_event_selection_notify: "
"unknown target");
}
}
else
{
log_error("clipboard_event_selection_notify: "
"unknown selection");
}
}
if (got_file_atom != 0)
{
/* text/uri-list or x-special/gnome-copied-files */
g_clip_s2c.type = got_file_atom;
g_clip_s2c.xrdp_clip_type = XRDP_CB_FILE;
g_clip_s2c.converted = 0;
g_clip_s2c.clip_time = lxevent->time;
send_format_announce = 1;
}
else if (got_utf8)
{
g_clip_s2c.type = g_utf8_atom;
g_clip_s2c.xrdp_clip_type = XRDP_CB_TEXT;
g_clip_s2c.converted = 0;
g_clip_s2c.clip_time = lxevent->time;
send_format_announce = 1;
}
else if (got_string)
{
g_clip_s2c.type = XA_STRING;
g_clip_s2c.xrdp_clip_type = XRDP_CB_TEXT;
g_clip_s2c.converted = 0;
g_clip_s2c.clip_time = lxevent->time;
send_format_announce = 1;
}
else if (got_bmp_image)
{
g_clip_s2c.type = g_image_bmp_atom;
g_clip_s2c.xrdp_clip_type = XRDP_CB_BITMAP;
g_clip_s2c.converted = 0;
g_clip_s2c.clip_time = lxevent->time;
send_format_announce = 1;
}
if (send_format_announce)
{
if (clipboard_send_format_announce(g_clip_s2c.xrdp_clip_type) != 0)
{
rv = 4;
}
}
g_free(data);
return rv;
}
/*****************************************************************************/
/* returns error
process the SelectionRequest X event, uses XSelectionRequestEvent
typedef struct {
int type; // SelectionRequest
unsigned long serial; // # of last request processed by server
Bool send_event; // true if this came from a SendEvent request
Display *display; // Display the event was read from
Window owner;
Window requestor;
Atom selection;
Atom target;
Atom property;
Time time;
} XSelectionRequestEvent; */
/*
* When XGetWindowProperty and XChangeProperty talk about "format 32" it
* doesn't mean a 32bit value, but actually a long. So 32 means 4 bytes on
* a 32bit machine and 8 bytes on a 64 machine
*/
static int
clipboard_event_selection_request(XEvent *xevent)
{
XSelectionRequestEvent *lxev;
Atom atom_buf[10];
Atom type;
int atom_count;
int fmt;
int n_items;
int xdata_size;
char *xdata;
lxev = (XSelectionRequestEvent *)xevent;
log_debug("clipboard_event_selection_request: 0x%lx", lxev->property);
log_debug("clipboard_event_selection_request: g_wnd %ld, "
".requestor %ld .owner %ld .selection %ld '%s' .target %ld .property %ld",
g_wnd, lxev->requestor, lxev->owner, lxev->selection,
get_atom_text(lxev->selection),
lxev->target, lxev->property);
if (lxev->property == None)
{
log_debug("clipboard_event_selection_request: lxev->property "
"is None");
log_debug("clipboard_event_selection_request: "
"lxev->property is None");
}
else if (lxev->target == g_targets_atom)
{
log_debug("clipboard_event_selection_request: g_targets_atom");
/* requestor is asking what the selection can be converted to */
log_debug("clipboard_event_selection_request: "
"g_targets_atom");
atom_buf[0] = g_targets_atom;
atom_buf[1] = g_timestamp_atom;
atom_buf[2] = g_multiple_atom;
atom_buf[3] = XA_STRING;
atom_buf[4] = g_utf8_atom;
atom_count = 5;
if (clipboard_find_format_id(CB_FORMAT_DIB) >= 0)
{
log_debug(" reporting image/bmp");
atom_buf[atom_count] = g_image_bmp_atom;
atom_count++;
}
if (clipboard_find_format_id(g_file_format_id) >= 0)
{
log_debug(" reporting text/uri-list");
atom_buf[atom_count] = g_file_atom1;
atom_count++;
log_debug(" reporting x-special/gnome-copied-files");
atom_buf[atom_count] = g_file_atom2;
atom_count++;
}
atom_buf[atom_count] = 0;
log_debug(" reporting %d formats", atom_count);
return clipboard_provide_selection(lxev, XA_ATOM, 32,
(char *)atom_buf, atom_count);
}
else if (lxev->target == g_timestamp_atom)
{
/* requestor is asking the time I got the selection */
log_debug("clipboard_event_selection_request: "
"g_timestamp_atom");
atom_buf[0] = g_selection_time;
atom_buf[1] = 0;
return clipboard_provide_selection(lxev, XA_INTEGER, 32,
(char *)atom_buf, 1);
}
else if (lxev->target == g_multiple_atom)
{
/* target, property pairs */
log_debug("clipboard_event_selection_request: "
"g_multiple_atom");
xdata = 0;
if (clipboard_get_window_property(lxev->requestor, lxev->property,
&type, &fmt, &n_items, &xdata,
&xdata_size) == 0)
{
log_debug("clipboard_event_selection_request: g_multiple_atom "
"n_items %d", n_items);
/* todo */
g_free(xdata);
}
}
else if ((lxev->target == XA_STRING) || (lxev->target == g_utf8_atom))
{
g_memcpy(&g_saved_selection_req_event, lxev,
sizeof(g_saved_selection_req_event));
g_clip_c2s.type = lxev->target;
g_clip_c2s.xrdp_clip_type = XRDP_CB_TEXT;
clipboard_send_data_request(CB_FORMAT_UNICODETEXT);
return 0;
}
else if (lxev->target == g_image_bmp_atom)
{
log_debug("clipboard_event_selection_request: image/bmp");
if ((g_clip_c2s.type == lxev->target) && g_clip_c2s.converted)
{
log_debug("clipboard_event_selection_request: -------------------------------------------");
clipboard_provide_selection_c2s(lxev, lxev->target);
return 0;
}
g_memcpy(&g_saved_selection_req_event, lxev,
sizeof(g_saved_selection_req_event));
g_clip_c2s.type = g_image_bmp_atom;
g_clip_c2s.xrdp_clip_type = XRDP_CB_BITMAP;
clipboard_send_data_request(CB_FORMAT_DIB);
return 0;
}
else if (lxev->target == g_file_atom1)
{
log_debug("clipboard_event_selection_request: g_file_atom1");
if ((g_clip_c2s.type == lxev->target) && g_clip_c2s.converted)
{
log_debug("clipboard_event_selection_request: -------------------------------------------");
clipboard_provide_selection_c2s(lxev, lxev->target);
return 0;
}
g_memcpy(&g_saved_selection_req_event, lxev,
sizeof(g_saved_selection_req_event));
g_clip_c2s.type = g_file_atom1;
g_clip_c2s.xrdp_clip_type = XRDP_CB_FILE;
clipboard_send_data_request(g_file_format_id);
return 0;
}
else if (lxev->target == g_file_atom2)
{
log_debug("clipboard_event_selection_request: g_file_atom2");
if ((g_clip_c2s.type == lxev->target) && g_clip_c2s.converted)
{
log_debug("clipboard_event_selection_request: -------------------------------------------");
clipboard_provide_selection_c2s(lxev, lxev->target);
return 0;
}
g_memcpy(&g_saved_selection_req_event, lxev,
sizeof(g_saved_selection_req_event));
g_clip_c2s.type = g_file_atom2;
g_clip_c2s.xrdp_clip_type = XRDP_CB_FILE;
clipboard_send_data_request(g_file_format_id);
return 0;
}
else
{
log_debug("clipboard_event_selection_request: unknown "
"target %s", get_atom_text(lxev->target));
LOGM((LOG_LEVEL_ERROR, "clipboard_event_selection_request: unknown "
"target %s", get_atom_text(lxev->target)));
}
clipboard_refuse_selection(lxev);
return 0;
}
/*****************************************************************************/
/* returns error
process the SelectionClear X event, uses XSelectionClearEvent
typedef struct {
int type; // SelectionClear
unsigned long serial; // # of last request processed by server
Bool send_event; // true if this came from a SendEvent request
Display *display; // Display the event was read from
Window window;
Atom selection;
Time time;
} XSelectionClearEvent; */
static int
clipboard_event_selection_clear(XEvent *xevent)
{
log_debug("clipboard_event_selection_clear:");
return 0;
}
/*****************************************************************************/
/* returns error
typedef struct {
int type; // PropertyNotify
unsigned long serial; // # of last request processed by server
Bool send_event; // true if this came from a SendEvent request
Display *display; // Display the event was read from
Window window;
Atom atom;
Time time;
int state; // PropertyNewValue or PropertyDelete
} XPropertyEvent; */
static int
clipboard_event_property_notify(XEvent *xevent)
{
Atom actual_type_return;
int actual_format_return;
unsigned long nitems_returned;
unsigned long bytes_left;
unsigned char *data;
int rv;
int format_in_bytes;
int new_data_len;
int data_bytes;
char *cptr;
log_debug("clipboard_event_property_notify:");
log_debug("clipboard_event_property_notify: PropertyNotify .window %ld "
".state %d .atom %ld %s", xevent->xproperty.window,
xevent->xproperty.state, xevent->xproperty.atom,
get_atom_text(xevent->xproperty.atom));
if (g_clip_c2s.incr_in_progress &&
(xevent->xproperty.window == g_clip_c2s.window) &&
(xevent->xproperty.atom == g_clip_c2s.property) &&
(xevent->xproperty.state == PropertyDelete))
{
log_debug("clipboard_event_property_notify: INCR PropertyDelete");
/* this is used for when copying a large clipboard to the other app,
it will delete the property so we know to send the next one */
if ((g_clip_c2s.data == 0) || (g_clip_c2s.total_bytes < 1))
{
log_debug("clipboard_event_property_notify: INCR error");
return 0;
}
data = (tui8 *)(g_clip_c2s.data + g_clip_c2s.incr_bytes_done);
data_bytes = g_clip_c2s.read_bytes_done - g_clip_c2s.incr_bytes_done;
if ((data_bytes < 1) &&
(g_clip_c2s.read_bytes_done < g_clip_c2s.total_bytes))
{
g_clip_c2s.incr_in_progress = 0;
return 0;
}
if (data_bytes > g_incr_max_req_size)
{
data_bytes = g_incr_max_req_size;
}
g_clip_c2s.incr_bytes_done += data_bytes;
log_debug("clipboard_event_property_notify: data_bytes %d", data_bytes);
XChangeProperty(xevent->xproperty.display, xevent->xproperty.window,
xevent->xproperty.atom, g_clip_c2s.type, 8,
PropModeReplace, data, data_bytes);
if (data_bytes < 1)
{
log_debug("clipboard_event_property_notify: INCR done");
g_clip_c2s.incr_in_progress = 0;
/* we no longer need property notify */
XSelectInput(xevent->xproperty.display, xevent->xproperty.window,
NoEventMask);
g_clip_c2s.converted = 1;
}
}
if (g_clip_s2c.incr_in_progress &&
(xevent->xproperty.window == g_wnd) &&
(xevent->xproperty.atom == g_clip_s2c.property) &&
(xevent->xproperty.state == PropertyNewValue))
{
log_debug("clipboard_event_property_notify: INCR PropertyNewValue");
rv = XGetWindowProperty(g_display, g_wnd, g_clip_s2c.property, 0, 0, 0,
AnyPropertyType, &actual_type_return, &actual_format_return,
&nitems_returned, &bytes_left, &data);
if (rv != Success)
{
return 1;
}
if (data != 0)
{
XFree(data);
data = 0;
}
if (bytes_left <= 0)
{
log_debug("clipboard_event_property_notify: INCR done");
/* clipboard INCR cycle has completed */
g_clip_s2c.incr_in_progress = 0;
if (g_clip_s2c.type == g_image_bmp_atom)
{
g_clip_s2c.xrdp_clip_type = XRDP_CB_BITMAP;
//g_hexdump(g_last_clip_data, 64);
/* skip header */
clipboard_send_data_response(g_clip_s2c.xrdp_clip_type,
g_clip_s2c.data + 14,
g_clip_s2c.total_bytes - 14);
}
else if ((g_clip_s2c.type == XA_STRING) ||
(g_clip_s2c.type == g_utf8_atom))
{
g_clip_s2c.xrdp_clip_type = XRDP_CB_TEXT;
clipboard_send_data_response(g_clip_s2c.xrdp_clip_type,
g_clip_s2c.data,
g_clip_s2c.total_bytes);
}
else
{
log_error("clipboard_event_property_notify: error unknown type %ld",
g_clip_s2c.type);
clipboard_send_data_response_failed();
}
XDeleteProperty(g_display, g_wnd, g_clip_s2c.property);
}
else
{
rv = XGetWindowProperty(g_display, g_wnd, g_clip_s2c.property, 0, bytes_left, 0,
AnyPropertyType, &actual_type_return, &actual_format_return,
&nitems_returned, &bytes_left, &data);
if (rv != Success)
{
return 1;
}
format_in_bytes = FORMAT_TO_BYTES(actual_format_return);
new_data_len = nitems_returned * format_in_bytes;
cptr = (char *) g_malloc(g_clip_s2c.total_bytes + new_data_len, 0);
g_memcpy(cptr, g_clip_s2c.data, g_clip_s2c.total_bytes);
g_free(g_clip_s2c.data);
if (cptr == NULL)
{
g_clip_s2c.data = 0;
/* cannot add any more data */
if (data != 0)
{
XFree(data);
}
XDeleteProperty(g_display, g_wnd, g_clip_s2c.property);
return 0;
}
log_debug("clipboard_event_property_notify: new_data_len %d", new_data_len);
g_clip_s2c.data = cptr;
g_memcpy(g_clip_s2c.data + g_clip_s2c.total_bytes, data, new_data_len);
g_clip_s2c.total_bytes += new_data_len;
if (data)
{
XFree(data);
}
XDeleteProperty(g_display, g_wnd, g_clip_s2c.property);
}
}
return 0;
}
/*****************************************************************************/
/* returns 0, event handled, 1 unhandled */
int
clipboard_xevent(void *xevent)
{
XEvent *lxevent;
log_debug("clipboard_xevent: event detected");
if (!g_clip_up)
{
return 1;
}
lxevent = (XEvent *)xevent;
switch (lxevent->type)
{
case SelectionNotify:
if (g_outbound_clipboard_restricted == 0)
{
clipboard_event_selection_notify(lxevent);
}
else
{
log_debug("outbound clipboard is restricted because %s is True in config", SESMAN_CFG_RESTRICT_CLIPBOARD);
return 1;
}
break;
case SelectionRequest:
clipboard_event_selection_request(lxevent);
break;
case SelectionClear:
clipboard_event_selection_clear(lxevent);
break;
case MappingNotify:
break;
case PropertyNotify:
clipboard_event_property_notify(lxevent);
break;
case UnmapNotify:
log_debug("chansrv::clipboard_xevent: got UnmapNotify");
break;
case ClientMessage:
log_debug("chansrv::clipboard_xevent: got ClientMessage");
break;
default:
if (lxevent->type == g_xfixes_event_base +
XFixesSetSelectionOwnerNotify)
{
log_debug("clipboard_xevent: got XFixesSetSelectionOwnerNotify");
clipboard_event_selection_owner_notify(lxevent);
break;
}
if (lxevent->type == g_xfixes_event_base +
XFixesSelectionWindowDestroyNotify)
{
log_debug("clipboard_xevent: got XFixesSelectionWindowDestroyNotify");
break;
}
if (lxevent->type == g_xfixes_event_base +
XFixesSelectionClientCloseNotify)
{
log_debug("clipboard_xevent: got XFixesSelectionClientCloseNotify");
break;
}
/* we didn't handle this message */
return 1;
}
return 0;
}
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