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chansrv: work on clipboard

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This commit is contained in:
Jay Sorg 2012-10-20 20:23:01 -07:00
parent 82d3f817fb
commit b349c03e22
3 changed files with 123 additions and 236 deletions
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341
sesman/chansrv/clipboard.c
View File

@ -86,8 +86,8 @@ extern Screen *g_screen; /* in xcommon.c */
extern int g_screen_num; /* in xcommon.c */
int g_clip_up = 0;
int g_waiting_for_data_response = 0;
int g_waiting_for_data_response_time = 0;
//int g_waiting_for_data_response = 0;
//int g_waiting_for_data_response_time = 0;
static Atom g_clipboard_atom = 0; /* CLIPBOARD */
static Atom g_clip_property_atom = 0; /* XRDP_CLIP_PROPERTY_ATOM */
@ -111,14 +111,7 @@ static Time g_selection_time = 0;
static struct stream *g_ins = 0;
static char *g_data_in = 0;
static int g_data_in_size = 0;
static int g_data_in_time = 0;
static int g_data_in_up_to_date = 0;
static int g_got_format_announce = 0;
/* for image data */
static int g_want_image_data = 0;
static XSelectionRequestEvent g_saved_selection_req_event;
/* xserver maximum request size in bytes */
@ -140,14 +133,6 @@ static int g_cliprdr_flags = CB_USE_LONG_FORMAT_NAMES |
static int g_formatIds[16];
static int g_num_formatIds = 0;
static XSelectionRequestEvent g_selection_request_event[16];
static int g_selection_request_event_count = 0;
/* this is used because client will ask for the same thing more than
once in successiotn */
int g_last_client_request_xrdp_clip_type = 0;
unsigned int g_last_client_request_xrdp_clip_time = 0;
/*****************************************************************************/
/* this is one way to get the current time from the x server */
static Time APP_CC
@ -368,9 +353,6 @@ clipboard_deinit(void)
g_free(g_clip_s2c.data);
g_clip_s2c.data = 0;
//g_free(g_last_clip_data);
//g_last_clip_data = 0;
//g_last_clip_size = 0;
free_stream(g_ins);
g_ins = 0;
g_clip_up = 0;
@ -386,15 +368,6 @@ clipboard_send_data_request(int format_id)
int rv;
LOGM((LOG_LEVEL_DEBUG, "clipboard_send_data_request:"));
if (!g_got_format_announce)
{
LOGM((LOG_LEVEL_ERROR, "clipboard_send_data_request: error, "
"no format announce"));
return 0;
}
g_got_format_announce = 0;
make_stream(s);
init_stream(s, 8192);
out_uint16_le(s, CB_FORMAT_DATA_REQUEST); /* 4 CLIPRDR_DATA_REQUEST */
@ -751,13 +724,68 @@ clipboard_set_selection_owner(void)
return 0;
}
/*****************************************************************************/
static int APP_CC
clipboard_provide_selection_c2s(XSelectionRequestEvent *req, Atom type)
{
XEvent xev;
long val1[2];
LLOGLN(0, ("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;
LLOGLN(0, ("clipboard_provide_selection_c2s: start INCR property %s "
"type %s", XGetAtomName(g_display, req->property),
XGetAtomName(g_display, 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 APP_CC
clipboard_provide_selection(XSelectionRequestEvent *req, Atom type, int format,
char *data, int length)
{
XEvent xev;
long val1[2];
int bytes;
bytes = FORMAT_TO_BYTES(format);
@ -777,41 +805,9 @@ clipboard_provide_selection(XSelectionRequestEvent *req, Atom type, int format,
xev.xselection.property = req->property;
xev.xselection.time = req->time;
XSendEvent(g_display, req->requestor, False, NoEventMask, &xev);
return 0;
}
else
{
g_clip_c2s.incr_in_progress = 1;
g_clip_c2s.incr_bytes_done = 0;
g_clip_c2s.total_bytes = bytes;
g_free(g_clip_c2s.data);
g_clip_c2s.data = (char *)g_malloc(bytes + 64, 0);
g_memcpy(g_clip_c2s.data, data, bytes);
g_clip_c2s.type = type;
g_clip_c2s.property = req->property;
//g_clip_c2s.target = req->target;
g_clip_c2s.window = req->requestor;
/* start the INCR process */
LLOGLN(0, ("clipboard_provide_selection: start INCR property %s "
"type %s", XGetAtomName(g_display, req->property),
XGetAtomName(g_display, type)));
val1[0] = 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;
return 1;
}
/*****************************************************************************/
@ -850,10 +846,7 @@ clipboard_process_format_announce(struct stream *s, int clip_msg_status,
LOGM((LOG_LEVEL_DEBUG, "clipboard_process_format_announce: "
"CLIPRDR_FORMAT_ANNOUNCE"));
LLOGLN(10, ("clipboard_process_format_announce %d", clip_msg_len));
//g_hexdump(s->p, s->end - s->p);
clipboard_send_format_ack();
g_got_format_announce = 1;
g_data_in_up_to_date = 0;
desc[0] = 0;
g_num_formatIds = 0;
while (clip_msg_len > 3)
@ -910,7 +903,6 @@ clipboard_prcoess_format_ack(struct stream *s, int clip_msg_status,
{
LOGM((LOG_LEVEL_DEBUG, "clipboard_prcoess_format_ack: CLIPRDR_FORMAT_ACK"));
LLOGLN(10, ("clipboard_prcoess_format_ack:"));
//g_hexdump(s->p, s->end - s->p);
return 0;
}
@ -936,7 +928,7 @@ clipboard_send_data_response_failed(void)
}
/*****************************************************************************/
/* sent from client to server
/* 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 APP_CC
@ -944,70 +936,58 @@ clipboard_process_data_request(struct stream *s, int clip_msg_status,
int clip_msg_len)
{
int requestedFormatId;
tui32 now;
tui32 tdiff;
LOGM((LOG_LEVEL_DEBUG, "clipboard_process_data_request: "
"CLIPRDR_DATA_REQUEST"));
LLOGLN(10, ("clipboard_process_data_request:"));
//g_hexdump(s->p, s->end - s->p);
now = xcommon_get_local_time();
tdiff = now - g_last_client_request_xrdp_clip_time;
LLOGLN(0, ("clipboard_process_data_request:"));
LLOGLN(0, (" %d", g_clip_s2c.xrdp_clip_type));
in_uint32_le(s, requestedFormatId);
switch (requestedFormatId)
{
case CB_FORMAT_FILE: /* 0xC0BC */
if ((tdiff < 500) &&
(g_last_client_request_xrdp_clip_type == XRDP_CB_FILE))
if ((g_clip_s2c.xrdp_clip_type == XRDP_CB_FILE) && g_clip_s2c.converted)
{
LLOGLN(10, ("clipboard_process_data_request: CB_FORMAT_FILE, "
"sending last data tdiff %d", tdiff));
clipboard_send_data_response(XRDP_CB_FILE, g_clip_c2s.data,
g_clip_c2s.total_bytes);
LLOGLN(10, ("clipboard_process_data_request: CB_FORMAT_FILE"));
clipboard_send_data_response(XRDP_CB_FILE, g_clip_s2c.data,
g_clip_s2c.total_bytes);
}
else
{
LLOGLN(10, ("clipboard_process_data_request: CB_FORMAT_FILE, "
"calling XConvertSelection to g_utf8_atom "
"tdiff %d", tdiff));
g_last_client_request_xrdp_clip_type = XRDP_CB_FILE;
g_last_client_request_xrdp_clip_time = now;
"calling XConvertSelection to g_utf8_atom"));
g_clip_s2c.xrdp_clip_type = XRDP_CB_FILE;
XConvertSelection(g_display, g_clipboard_atom, g_utf8_atom,
g_clip_property_atom, g_wnd, CurrentTime);
}
break;
case CB_FORMAT_DIB: /* 0x0008 */
if ((tdiff < 500) &&
(g_last_client_request_xrdp_clip_type == XRDP_CB_BITMAP))
if ((g_clip_s2c.xrdp_clip_type == XRDP_CB_BITMAP) && g_clip_s2c.converted)
{
LLOGLN(10, ("clipboard_process_data_request: CB_FORMAT_DIB, "
"sending last data tdiff %d", tdiff));
clipboard_send_data_response(XRDP_CB_BITMAP, g_clip_c2s.data,
g_clip_c2s.total_bytes);
LLOGLN(10, ("clipboard_process_data_request: CB_FORMAT_DIB"));
clipboard_send_data_response(XRDP_CB_BITMAP, g_clip_s2c.data,
g_clip_s2c.total_bytes);
}
else
{
LLOGLN(10, ("clipboard_process_data_request: CB_FORMAT_DIB, "
"calling XConvertSelection to g_image_bmp_atom "
"tdiff %d", tdiff));
"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 ((tdiff < 500) &&
(g_last_client_request_xrdp_clip_type == XRDP_CB_TEXT))
if ((g_clip_s2c.xrdp_clip_type == XRDP_CB_TEXT) && g_clip_s2c.converted)
{
LLOGLN(10, ("clipboard_process_data_request: CB_FORMAT_UNICODETEXT, "
"sending last data tdiff %d", tdiff));
clipboard_send_data_response(XRDP_CB_TEXT, g_clip_c2s.data,
g_clip_c2s.total_bytes);
LLOGLN(10, ("clipboard_process_data_request: CB_FORMAT_UNICODETEXT"));
clipboard_send_data_response(XRDP_CB_TEXT, g_clip_s2c.data,
g_clip_s2c.total_bytes);
}
else
{
LLOGLN(10, ("clipboard_process_data_request: CB_FORMAT_UNICODETEXT, "
"calling XConvertSelection to g_utf8_atom "
"tdiff %d", tdiff));
"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);
}
@ -1032,61 +1012,39 @@ clipboard_process_data_response_for_image(struct stream *s,
int clip_msg_status,
int clip_msg_len)
{
XSelectionRequestEvent *lxev = &g_saved_selection_req_event;
char *cptr;
char cdata;
XSelectionRequestEvent *lxev;
int len;
int index;
LOGM((LOG_LEVEL_DEBUG, "clipboard_process_data_response_for_image: "
"CLIPRDR_DATA_RESPONSE_FOR_IMAGE"));
g_waiting_for_data_response = 0;
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)
{
/* space for inserting bmp image header */
len += 14;
cptr = (char *) g_malloc(len, 0);
if (cptr == 0)
{
return 0;
}
g_memcpy(cptr, g_bmp_image_header, 14);
index = 14;
}
else
if (g_clip_c2s.type != g_image_bmp_atom)
{
return 0;
}
while (s_check(s))
g_free(g_clip_c2s.data);
g_clip_c2s.data = (char *) g_malloc(len + 14, 0);
if (g_clip_c2s.data == 0)
{
in_uint8(s, cdata);
cptr[index++] = cdata;
}
if (len >= 0)
{
g_data_in = cptr;
g_data_in_size = len;
g_data_in_time = clipboard_get_local_time();
g_data_in_up_to_date = 1;
g_clip_c2s.total_bytes = 0;
return 0;
}
g_clip_c2s.total_bytes = len;
g_memcpy(g_clip_c2s.data, g_bmp_image_header, 14);
in_uint8a(s, g_clip_c2s.data + 14, len);
LLOGLN(10, ("clipboard_process_data_response_for_image: calling "
"clipboard_provide_selection with %d bytes", len));
clipboard_provide_selection(lxev, lxev->target, 8, cptr, len);
"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
@ -1101,88 +1059,59 @@ clipboard_process_data_response(struct stream *s, int clip_msg_status,
twchar wchr;
int len;
int index;
int data_in_len;
if (g_want_image_data)
LLOGLN(0, ("clipboard_process_data_response:"));
LLOGLN(0, (" %d", g_clip_c2s.xrdp_clip_type));
lxev = &g_saved_selection_req_event;
if (g_clip_c2s.xrdp_clip_type == XRDP_CB_BITMAP)
{
g_want_image_data = 0;
clipboard_process_data_response_for_image(s, clip_msg_status,
clip_msg_len);
return 0;
}
LOGM((LOG_LEVEL_DEBUG, "clipboard_process_data_response: "
"CLIPRDR_DATA_RESPONSE"));
g_waiting_for_data_response = 0;
len = (int)(s->end - s->p);
if (len < 1)
{
return 0;
}
//g_hexdump(s->p, len);
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_data_in);
g_data_in = 0;
g_data_in_size = 0;
g_data_in_time = 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_data_in = (char *) g_malloc(len + 16, 0);
if (g_data_in == 0)
g_clip_c2s.data = (char *) g_malloc(len + 16, 0);
if (g_clip_c2s.data == 0)
{
g_free(wtext);
return 0;
}
g_data_in_size = len;
g_wcstombs(g_data_in, wtext, len + 1);
g_data_in_time = xcommon_get_local_time();
g_data_in_up_to_date = 1;
g_wcstombs(g_clip_c2s.data, wtext, len + 1);
}
if (g_data_in != 0)
if (g_clip_c2s.data != 0)
{
data_in_len = g_strlen(g_data_in);
for (index = 0; index < g_selection_request_event_count; index++)
{
lxev = &(g_selection_request_event[index]);
clipboard_provide_selection(lxev, lxev->target, 8, g_data_in,
data_in_len);
LOGM((LOG_LEVEL_DEBUG, "clipboard_process_data_response: "
"requestor %d data_in_len %d",
lxev->requestor, data_in_len));
}
g_clip_c2s.total_bytes = g_strlen(g_clip_c2s.data);
clipboard_provide_selection_c2s(lxev, lxev->target);
}
g_selection_request_event_count = 0;
g_free(wtext);
return 0;
}
@ -1530,11 +1459,6 @@ clipboard_event_selection_notify(XEvent *xevent)
if (rv == 0)
{
//if (lxevent->property == g_incr_atom)
//{
// XDeleteProperty(g_display, lxevent->requestor, lxevent->property);
// return 0;
//}
LLOGLN(0, ("clipboard_event_selection_notify: wnd %p prop %s", lxevent->requestor,
XGetAtomName(g_display, lxevent->property)));
rv = clipboard_get_window_property(lxevent->requestor, lxevent->property,
@ -1689,6 +1613,7 @@ clipboard_event_selection_notify(XEvent *xevent)
{
g_clip_s2c.type = g_utf8_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;
}
@ -1696,6 +1621,7 @@ clipboard_event_selection_notify(XEvent *xevent)
{
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;
}
@ -1703,6 +1629,7 @@ clipboard_event_selection_notify(XEvent *xevent)
{
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;
}
@ -1710,6 +1637,7 @@ clipboard_event_selection_notify(XEvent *xevent)
{
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;
}
@ -1792,6 +1720,7 @@ clipboard_event_selection_request(XEvent *xevent)
atom_buf[atom_count] = g_image_bmp_atom;
atom_count++;
}
atom_buf[atom_count] = 0;
LLOGLN(10, (" reporting %d formats", atom_count));
return clipboard_provide_selection(lxev, XA_ATOM, 32,
(char *)atom_buf, atom_count);
@ -1803,7 +1732,8 @@ clipboard_event_selection_request(XEvent *xevent)
"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);
return clipboard_provide_selection(lxev, XA_INTEGER, 32,
(char *)atom_buf, 1);
}
else if (lxev->target == g_multiple_atom)
{
@ -1825,35 +1755,12 @@ clipboard_event_selection_request(XEvent *xevent)
}
else if ((lxev->target == XA_STRING) || (lxev->target == g_utf8_atom))
{
LOGM((LOG_LEVEL_DEBUG, "clipboard_event_selection_request: %s",
XGetAtomName(g_display, lxev->target)));
if (g_data_in_up_to_date)
{
return clipboard_provide_selection(lxev, lxev->target, 8,
g_data_in, g_strlen(g_data_in));
}
if (g_selection_request_event_count > 10)
{
LOGM((LOG_LEVEL_ERROR, "clipboard_event_selection_request: error, "
"too many requests"));
}
else
{
g_memcpy(&(g_selection_request_event[g_selection_request_event_count]),
lxev, sizeof(g_selection_request_event[0]));
if (g_selection_request_event_count == 0)
{
clipboard_send_data_request(CB_FORMAT_UNICODETEXT);
g_waiting_for_data_response = 1;
g_waiting_for_data_response_time = xcommon_get_local_time();
}
g_selection_request_event_count++;
return 0;
}
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)
{
@ -1861,10 +1768,7 @@ clipboard_event_selection_request(XEvent *xevent)
sizeof(g_saved_selection_req_event));
g_clip_c2s.type = g_image_bmp_atom;
g_clip_c2s.xrdp_clip_type = XRDP_CB_BITMAP;
g_want_image_data = 1;
clipboard_send_data_request(CB_FORMAT_DIB);
g_waiting_for_data_response = 1;
g_waiting_for_data_response_time = clipboard_get_local_time();
return 0;
}
else
@ -1961,9 +1865,6 @@ clipboard_event_property_notify(XEvent *xevent)
/* we no longer need property notify */
XSelectInput(xevent->xproperty.display, xevent->xproperty.window,
NoEventMask);
g_free(g_clip_c2s.data);
g_clip_c2s.data = 0;
g_clip_c2s.total_bytes = 0;
}
}
if (g_clip_s2c.incr_in_progress &&

1
sesman/chansrv/clipboard_common.h
View File

@ -91,6 +91,7 @@ struct clip_s2c /* server to client, pasting from linux app to mstsc */
Atom type; /* UTF8_STRING, image/bmp, ... */
Atom property; /* XRDP_CLIP_PROPERTY_ATOM, _QT_SELECTION, ... */
int xrdp_clip_type; /* XRDP_CB_TEXT, XRDP_CB_BITMAP, XRDP_CB_FILE, ... */
int converted;
Time clip_time;
};

17
sesman/chansrv/xcommon.c
View File

@ -29,8 +29,6 @@
#define LOG_LEVEL 11
extern int g_clip_up; /* in clipboard.c */
extern int g_waiting_for_data_response; /* in clipboard.c */
extern int g_waiting_for_data_response_time; /* in clipboard.c */
extern int g_rail_up; /* in rail.c */
@ -150,7 +148,7 @@ int APP_CC
xcommon_check_wait_objs(void)
{
XEvent xevent;
int time_diff;
//int time_diff;
int clip_rv;
int rail_rv;
@ -168,19 +166,6 @@ xcommon_check_wait_objs(void)
LOGM((LOG_LEVEL_ERROR, "xcommon_check_wait_objs: sck closed"));
return 0;
}
if (g_waiting_for_data_response)
{
time_diff = xcommon_get_local_time() -
g_waiting_for_data_response_time;
if (time_diff > 10000)
{
LOGM((LOG_LEVEL_ERROR, "xcommon_check_wait_objs: warning, "
"waiting for data response too long"));
}
}
while (XPending(g_display) > 0)
{
g_memset(&xevent, 0, sizeof(xevent));