From: Jakub Janků <jjanku@xxxxxxxxxx>
The code will be replaced by GTK+ in the following patch.
---
src/vdagent/vdagent.c | 7 -
src/vdagent/x11-priv.h | 91 ----
src/vdagent/x11.c | 1074 +-----------------------------------------------
src/vdagent/x11.h | 10 -
4 files changed, 1 insertion(+), 1181 deletions(-)
diff --git a/src/vdagent/vdagent.c b/src/vdagent/vdagent.c
index d86ee25..92ffcf3 100644
--- a/src/vdagent/vdagent.c
+++ b/src/vdagent/vdagent.c
@@ -164,18 +164,12 @@ static void daemon_read_complete(struct udscs_connection **connp,
vdagent_x11_set_monitor_config(agent->x11, (VDAgentMonitorsConfig *)data, 0);
break;
case VDAGENTD_CLIPBOARD_REQUEST:
- vdagent_x11_clipboard_request(agent->x11, header->arg1, header->arg2);
break;
case VDAGENTD_CLIPBOARD_GRAB:
- vdagent_x11_clipboard_grab(agent->x11, header->arg1, (uint32_t *)data,
- header->size / sizeof(uint32_t));
break;
case VDAGENTD_CLIPBOARD_DATA:
- vdagent_x11_clipboard_data(agent->x11, header->arg1, header->arg2,
- data, header->size);
break;
case VDAGENTD_CLIPBOARD_RELEASE:
- vdagent_x11_clipboard_release(agent->x11, header->arg1);
break;
case VDAGENTD_VERSION:
if (strcmp((char *)data, VERSION) != 0) {
@@ -228,7 +222,6 @@ static void daemon_read_complete(struct udscs_connection **connp,
}
break;
case VDAGENTD_CLIENT_DISCONNECTED:
- vdagent_x11_client_disconnected(agent->x11);
if (vdagent_finalize_file_xfer(agent)) {
vdagent_init_file_xfer(agent);
}
diff --git a/src/vdagent/x11-priv.h b/src/vdagent/x11-priv.h
index 3776098..627e0ed 100644
--- a/src/vdagent/x11-priv.h
+++ b/src/vdagent/x11-priv.h
@@ -1,118 +1,27 @@
#ifndef VDAGENT_X11_PRIV
#define VDAGENT_X11_PRIV
-#include <stdint.h>
-#include <stdio.h>
-
-#include <spice/vd_agent.h>
-
#include <X11/extensions/Xrandr.h>
-/* Macros to print a message to the logfile prefixed by the selection */
-#define SELPRINTF(format, ...) \
- syslog(LOG_ERR, "%s: " format, \
- vdagent_x11_sel_to_str(selection), ##__VA_ARGS__)
-
-#define VSELPRINTF(format, ...) \
- do { \
- if (x11->debug) { \
- syslog(LOG_DEBUG, "%s: " format, \
- vdagent_x11_sel_to_str(selection), ##__VA_ARGS__); \
- } \
- } while (0)
-
#define MAX_SCREENS 16
/* Same as qxl_dev.h client_monitors_config.heads count */
#define MONITOR_SIZE_COUNT 64
-enum { owner_none, owner_guest, owner_client };
-
-/* X11 terminology is confusing a selection request is a request from an
- app to get clipboard data from us, so iow from the spice client through
- the vdagent channel. We handle these one at a time and queue any which
- come in while we are still handling the current one. */
-struct vdagent_x11_selection_request {
- XEvent event;
- uint8_t selection;
- struct vdagent_x11_selection_request *next;
-};
-
-/* A conversion request is X11 speak for asking another app to give its
- clipboard data to us, we do these on behalf of the spice client to copy
- data from the guest to the client. Like selection requests we process
- these one at a time. */
-struct vdagent_x11_conversion_request {
- Atom target;
- uint8_t selection;
- struct vdagent_x11_conversion_request *next;
-};
-
-struct clipboard_format_tmpl {
- uint32_t type;
- const char *atom_names[16];
-};
-
-struct clipboard_format_info {
- uint32_t type;
- Atom atoms[16];
- int atom_count;
-};
-
struct monitor_size {
int width;
int height;
};
-static const struct clipboard_format_tmpl clipboard_format_templates[] = {
- { VD_AGENT_CLIPBOARD_UTF8_TEXT, { "UTF8_STRING", "text/plain;charset=UTF-8",
- "text/plain;charset=utf-8", "STRING", NULL }, },
- { VD_AGENT_CLIPBOARD_IMAGE_PNG, { "image/png", NULL }, },
- { VD_AGENT_CLIPBOARD_IMAGE_BMP, { "image/bmp", "image/x-bmp",
- "image/x-MS-bmp", "image/x-win-bitmap", NULL }, },
- { VD_AGENT_CLIPBOARD_IMAGE_TIFF, { "image/tiff", NULL }, },
- { VD_AGENT_CLIPBOARD_IMAGE_JPG, { "image/jpeg", NULL }, },
-};
-
-#define clipboard_format_count (sizeof(clipboard_format_templates)/sizeof(clipboard_format_templates[0]))
-
struct vdagent_x11 {
- struct clipboard_format_info clipboard_formats[clipboard_format_count];
Display *display;
- Atom clipboard_atom;
- Atom clipboard_primary_atom;
- Atom targets_atom;
- Atom incr_atom;
- Atom multiple_atom;
- Atom timestamp_atom;
Window root_window[MAX_SCREENS];
- Window selection_window;
struct udscs_connection *vdagentd;
int debug;
int fd;
int screen_count;
int width[MAX_SCREENS];
int height[MAX_SCREENS];
- int has_xfixes;
- int xfixes_event_base;
int xrandr_event_base;
- int max_prop_size;
- int expected_targets_notifies[256];
- int clipboard_owner[256];
- int clipboard_type_count[256];
- uint32_t clipboard_agent_types[256][256];
- Atom clipboard_x11_targets[256][256];
- /* Data for conversion_req which is currently being processed */
- struct vdagent_x11_conversion_request *conversion_req;
- int expect_property_notify;
- uint8_t *clipboard_data;
- uint32_t clipboard_data_size;
- uint32_t clipboard_data_space;
- /* Data for selection_req which is currently being processed */
- struct vdagent_x11_selection_request *selection_req;
- uint8_t *selection_req_data;
- uint32_t selection_req_data_pos;
- uint32_t selection_req_data_size;
- Atom selection_req_atom;
/* resolution change state */
struct {
XRRScreenResources *res;
diff --git a/src/vdagent/x11.c b/src/vdagent/x11.c
index 9700847..738eaa4 100644
--- a/src/vdagent/x11.c
+++ b/src/vdagent/x11.c
@@ -31,21 +31,14 @@
Calling XPending when-ever we return to the mainloop also ensures any
pending writes are flushed. */
-#include <glib.h>
#include <gdk/gdk.h>
#ifdef GDK_WINDOWING_X11
#include <gdk/gdkx.h>
#endif
#include <stdlib.h>
-#include <limits.h>
#include <string.h>
#include <syslog.h>
-#include <assert.h>
-#include <unistd.h>
-#include <X11/Xatom.h>
#include <X11/Xlib.h>
-#include <X11/extensions/Xfixes.h>
-#include "vdagentd-proto.h"
#include "x11.h"
#include "x11-priv.h"
@@ -53,48 +46,12 @@
int (*vdagent_x11_prev_error_handler)(Display *, XErrorEvent *);
int vdagent_x11_caught_error;
-static void vdagent_x11_handle_selection_notify(struct vdagent_x11 *x11,
- XEvent *event, int incr);
-static void vdagent_x11_handle_selection_request(struct vdagent_x11 *x11);
-static void vdagent_x11_handle_targets_notify(struct vdagent_x11 *x11,
- XEvent *event);
-static void vdagent_x11_handle_property_delete_notify(struct vdagent_x11 *x11,
- XEvent *del_event);
-static void vdagent_x11_send_selection_notify(struct vdagent_x11 *x11,
- Atom prop, struct vdagent_x11_selection_request *request);
-static void vdagent_x11_set_clipboard_owner(struct vdagent_x11 *x11,
- uint8_t selection, int new_owner);
-
-static const char *vdagent_x11_sel_to_str(uint8_t selection) {
- switch (selection) {
- case VD_AGENT_CLIPBOARD_SELECTION_CLIPBOARD:
- return "clipboard";
- case VD_AGENT_CLIPBOARD_SELECTION_PRIMARY:
- return "primary";
- case VD_AGENT_CLIPBOARD_SELECTION_SECONDARY:
- return "secondary";
- default:
- return "unknown";
- }
-}
-
static int vdagent_x11_debug_error_handler(
Display *display, XErrorEvent *error)
{
abort();
}
-/* With the clipboard we're sometimes dealing with Properties on another apps
- Window. which can go away at any time. */
-static int vdagent_x11_ignore_bad_window_handler(
- Display *display, XErrorEvent *error)
-{
- if (error->error_code == BadWindow)
- return 0;
-
- return vdagent_x11_prev_error_handler(display, error);
-}
-
void vdagent_x11_set_error_handler(struct vdagent_x11 *x11,
int (*handler)(Display *, XErrorEvent *))
{
@@ -131,7 +88,7 @@ struct vdagent_x11 *vdagent_x11_create(struct udscs_connection *vdagentd,
{
struct vdagent_x11 *x11;
XWindowAttributes attrib;
- int i, j, major, minor;
+ int i;
const gchar *net_wm_name;
x11 = calloc(1, sizeof(*x11));
@@ -167,57 +124,9 @@ struct vdagent_x11 *vdagent_x11_create(struct udscs_connection *vdagentd,
for (i = 0; i < x11->screen_count; i++)
x11->root_window[i] = RootWindow(x11->display, i);
x11->fd = ConnectionNumber(x11->display);
- x11->clipboard_atom = XInternAtom(x11->display, "CLIPBOARD", False);
- x11->clipboard_primary_atom = XInternAtom(x11->display, "PRIMARY", False);
- x11->targets_atom = XInternAtom(x11->display, "TARGETS", False);
- x11->incr_atom = XInternAtom(x11->display, "INCR", False);
- x11->multiple_atom = XInternAtom(x11->display, "MULTIPLE", False);
- x11->timestamp_atom = XInternAtom(x11->display, "TIMESTAMP", False);
- for(i = 0; i < clipboard_format_count; i++) {
- x11->clipboard_formats[i].type = clipboard_format_templates[i].type;
- for(j = 0; clipboard_format_templates[i].atom_names[j]; j++) {
- x11->clipboard_formats[i].atoms[j] =
- XInternAtom(x11->display,
- clipboard_format_templates[i].atom_names[j],
- False);
- }
- x11->clipboard_formats[i].atom_count = j;
- }
-
- /* We should not store properties (for selections) on the root window */
- x11->selection_window = XCreateSimpleWindow(x11->display, x11->root_window[0],
- 0, 0, 1, 1, 0, 0, 0);
- if (x11->debug)
- syslog(LOG_DEBUG, "Selection window: %u", (int)x11->selection_window);
vdagent_x11_randr_init(x11);
- if (XFixesQueryExtension(x11->display, &x11->xfixes_event_base, &i) &&
- XFixesQueryVersion(x11->display, &major, &minor) && major >= 1) {
- x11->has_xfixes = 1;
- XFixesSelectSelectionInput(x11->display, x11->root_window[0],
- x11->clipboard_atom,
- XFixesSetSelectionOwnerNotifyMask|
- XFixesSelectionWindowDestroyNotifyMask|
- XFixesSelectionClientCloseNotifyMask);
- XFixesSelectSelectionInput(x11->display, x11->root_window[0],
- x11->clipboard_primary_atom,
- XFixesSetSelectionOwnerNotifyMask|
- XFixesSelectionWindowDestroyNotifyMask|
- XFixesSelectionClientCloseNotifyMask);
- } else
- syslog(LOG_ERR, "no xfixes, no guest -> client copy paste support");
-
- x11->max_prop_size = XExtendedMaxRequestSize(x11->display);
- if (x11->max_prop_size) {
- x11->max_prop_size -= 100;
- } else {
- x11->max_prop_size = XMaxRequestSize(x11->display) - 100;
- }
- /* Be a good X11 citizen and maximize the amount of data we send at once */
- if (x11->max_prop_size > 262144)
- x11->max_prop_size = 262144;
-
for (i = 0; i < x11->screen_count; i++) {
/* Catch resolution changes */
XSelectInput(x11->display, x11->root_window[i], StructureNotifyMask);
@@ -249,18 +158,12 @@ struct vdagent_x11 *vdagent_x11_create(struct udscs_connection *vdagentd,
void vdagent_x11_destroy(struct vdagent_x11 *x11, int vdagentd_disconnected)
{
- uint8_t sel;
-
if (!x11)
return;
if (vdagentd_disconnected)
x11->vdagentd = NULL;
- for (sel = 0; sel < VD_AGENT_CLIPBOARD_SELECTION_SECONDARY; ++sel) {
- vdagent_x11_set_clipboard_owner(x11, sel, owner_none);
- }
-
XCloseDisplay(x11->display);
free(x11->randr.failed_conf);
free(x11);
@@ -271,190 +174,9 @@ int vdagent_x11_get_fd(struct vdagent_x11 *x11)
return x11->fd;
}
-static void vdagent_x11_next_selection_request(struct vdagent_x11 *x11)
-{
- struct vdagent_x11_selection_request *selection_request;
- selection_request = x11->selection_req;
- x11->selection_req = selection_request->next;
- free(selection_request);
-}
-
-static void vdagent_x11_next_conversion_request(struct vdagent_x11 *x11)
-{
- struct vdagent_x11_conversion_request *conversion_req;
- conversion_req = x11->conversion_req;
- x11->conversion_req = conversion_req->next;
- free(conversion_req);
-}
-
-static void vdagent_x11_set_clipboard_owner(struct vdagent_x11 *x11,
- uint8_t selection, int new_owner)
-{
- struct vdagent_x11_selection_request *prev_sel, *curr_sel, *next_sel;
- struct vdagent_x11_conversion_request *prev_conv, *curr_conv, *next_conv;
- int once;
-
- /* Clear pending requests and clipboard data */
- once = 1;
- prev_sel = NULL;
- next_sel = x11->selection_req;
- while (next_sel) {
- curr_sel = next_sel;
- next_sel = curr_sel->next;
- if (curr_sel->selection == selection) {
- if (once) {
- SELPRINTF("selection requests pending on clipboard ownership "
- "change, clearing");
- once = 0;
- }
- vdagent_x11_send_selection_notify(x11, None, curr_sel);
- if (curr_sel == x11->selection_req) {
- x11->selection_req = next_sel;
- free(x11->selection_req_data);
- x11->selection_req_data = NULL;
- x11->selection_req_data_pos = 0;
- x11->selection_req_data_size = 0;
- x11->selection_req_atom = None;
- } else {
- prev_sel->next = next_sel;
- }
- free(curr_sel);
- } else {
- prev_sel = curr_sel;
- }
- }
-
- once = 1;
- prev_conv = NULL;
- next_conv = x11->conversion_req;
- while (next_conv) {
- curr_conv = next_conv;
- next_conv = curr_conv->next;
- if (curr_conv->selection == selection) {
- if (once) {
- SELPRINTF("client clipboard request pending on clipboard "
- "ownership change, clearing");
- once = 0;
- }
- if (x11->vdagentd)
- udscs_write(x11->vdagentd, VDAGENTD_CLIPBOARD_DATA, selection,
- VD_AGENT_CLIPBOARD_NONE, NULL, 0);
- if (curr_conv == x11->conversion_req) {
- x11->conversion_req = next_conv;
- x11->clipboard_data_size = 0;
- x11->expect_property_notify = 0;
- } else {
- prev_conv->next = next_conv;
- }
- free(curr_conv);
- } else {
- prev_conv = curr_conv;
- }
- }
-
- if (new_owner == owner_none) {
- /* When going from owner_guest to owner_none we need to send a
- clipboard release message to the client */
- if (x11->clipboard_owner[selection] == owner_guest && x11->vdagentd) {
- udscs_write(x11->vdagentd, VDAGENTD_CLIPBOARD_RELEASE, selection,
- 0, NULL, 0);
- }
- x11->clipboard_type_count[selection] = 0;
- }
- x11->clipboard_owner[selection] = new_owner;
-}
-
-static int vdagent_x11_get_clipboard_atom(struct vdagent_x11 *x11, uint8_t selection, Atom* clipboard)
-{
- if (selection == VD_AGENT_CLIPBOARD_SELECTION_CLIPBOARD) {
- *clipboard = x11->clipboard_atom;
- } else if (selection == VD_AGENT_CLIPBOARD_SELECTION_PRIMARY) {
- *clipboard = x11->clipboard_primary_atom;
- } else {
- syslog(LOG_ERR, "get_clipboard_atom: unknown selection");
- return -1;
- }
-
- return 0;
-}
-
-static int vdagent_x11_get_clipboard_selection(struct vdagent_x11 *x11,
- XEvent *event, uint8_t *selection)
-{
- Atom atom;
-
- if (event->type == x11->xfixes_event_base) {
- XFixesSelectionNotifyEvent *xfev = (XFixesSelectionNotifyEvent *)event;
- atom = xfev->selection;
- } else if (event->type == SelectionNotify) {
- atom = event->xselection.selection;
- } else if (event->type == SelectionRequest) {
- atom = event->xselectionrequest.selection;
- } else {
- syslog(LOG_ERR, "get_clipboard_selection: unknown event type");
- return -1;
- }
-
- if (atom == x11->clipboard_atom) {
- *selection = VD_AGENT_CLIPBOARD_SELECTION_CLIPBOARD;
- } else if (atom == x11->clipboard_primary_atom) {
- *selection = VD_AGENT_CLIPBOARD_SELECTION_PRIMARY;
- } else {
- syslog(LOG_ERR, "get_clipboard_selection: unknown selection");
- return -1;
- }
-
- return 0;
-}
-
static void vdagent_x11_handle_event(struct vdagent_x11 *x11, XEvent event)
{
int i, handled = 0;
- uint8_t selection;
-
- if (event.type == x11->xfixes_event_base) {
- union {
- XEvent ev;
- XFixesSelectionNotifyEvent xfev;
- } ev;
-
- if (vdagent_x11_get_clipboard_selection(x11, &event, &selection)) {
- return;
- }
-
- ev.ev = event;
- switch (ev.xfev.subtype) {
- case XFixesSetSelectionOwnerNotify:
- break;
- /* Treat ... as a SelectionOwnerNotify None */
- case XFixesSelectionWindowDestroyNotify:
- case XFixesSelectionClientCloseNotify:
- ev.xfev.owner = None;
- break;
- default:
- VSELPRINTF("unexpected xfix event subtype %d window %d",
- (int)ev.xfev.subtype, (int)event.xany.window);
- return;
- }
- VSELPRINTF("New selection owner: %u", (unsigned int)ev.xfev.owner);
-
- /* Ignore becoming the owner ourselves */
- if (ev.xfev.owner == x11->selection_window)
- return;
-
- /* If the clipboard owner is changed we no longer own it */
- vdagent_x11_set_clipboard_owner(x11, selection, owner_none);
-
- if (ev.xfev.owner == None)
- return;
-
- /* Request the supported targets from the new owner */
- XConvertSelection(x11->display, ev.xfev.selection, x11->targets_atom,
- x11->targets_atom, x11->selection_window,
- CurrentTime);
- x11->expected_targets_notifies[selection]++;
- return;
- }
if (vdagent_x11_randr_handle_event(x11, event))
return;
@@ -475,65 +197,6 @@ static void vdagent_x11_handle_event(struct vdagent_x11 *x11, XEvent event)
/* These are uninteresting */
handled = 1;
break;
- case SelectionNotify:
- if (event.xselection.target == x11->targets_atom)
- vdagent_x11_handle_targets_notify(x11, &event);
- else
- vdagent_x11_handle_selection_notify(x11, &event, 0);
-
- handled = 1;
- break;
- case PropertyNotify:
- if (x11->expect_property_notify &&
- event.xproperty.state == PropertyNewValue) {
- vdagent_x11_handle_selection_notify(x11, &event, 1);
- }
- if (x11->selection_req_data &&
- event.xproperty.state == PropertyDelete) {
- vdagent_x11_handle_property_delete_notify(x11, &event);
- }
- /* Always mark as handled, since we cannot unselect input for property
- notifications once we are done with handling the incr transfer. */
- handled = 1;
- break;
- case SelectionClear:
- /* Do nothing the clipboard ownership will get updated through
- the XFixesSetSelectionOwnerNotify event */
- handled = 1;
- break;
- case SelectionRequest: {
- struct vdagent_x11_selection_request *req, *new_req;
-
- if (vdagent_x11_get_clipboard_selection(x11, &event, &selection)) {
- return;
- }
-
- new_req = malloc(sizeof(*new_req));
- if (!new_req) {
- SELPRINTF("out of memory on SelectionRequest, ignoring.");
- break;
- }
-
- handled = 1;
-
- new_req->event = event;
- new_req->selection = selection;
- new_req->next = NULL;
-
- if (!x11->selection_req) {
- x11->selection_req = new_req;
- vdagent_x11_handle_selection_request(x11);
- break;
- }
-
- /* maybe we should limit the selection_request stack depth ? */
- req = x11->selection_req;
- while (req->next)
- req = req->next;
-
- req->next = new_req;
- break;
- }
}
if (!handled && x11->debug)
syslog(LOG_DEBUG, "unhandled x11 event, type %d, window %d",
@@ -550,741 +213,6 @@ void vdagent_x11_do_read(struct vdagent_x11 *x11)
}
}
-static const char *vdagent_x11_get_atom_name(struct vdagent_x11 *x11, Atom a)
-{
- if (a == None)
- return "None";
-
- return XGetAtomName(x11->display, a);
-}
-
-static int vdagent_x11_get_selection(struct vdagent_x11 *x11, XEvent *event,
- uint8_t selection, Atom type, Atom prop, int format,
- unsigned char **data_ret, int incr)
-{
- Bool del = incr ? True: False;
- Atom type_ret;
- int format_ret, ret_val = -1;
- unsigned long len, remain;
- unsigned char *data = NULL;
-
- *data_ret = NULL;
-
- if (!incr) {
- if (event->xselection.property == None) {
- VSELPRINTF("XConvertSelection refused by clipboard owner");
- goto exit;
- }
-
- if (event->xselection.requestor != x11->selection_window ||
- event->xselection.property != prop) {
- SELPRINTF("SelectionNotify parameters mismatch");
- goto exit;
- }
- }
-
- if (XGetWindowProperty(x11->display, x11->selection_window, prop, 0,
- LONG_MAX, del, type, &type_ret, &format_ret, &len,
- &remain, &data) != Success) {
- SELPRINTF("XGetWindowProperty failed");
- goto exit;
- }
-
- if (!incr && prop != x11->targets_atom) {
- if (type_ret == x11->incr_atom) {
- int prop_min_size = *(uint32_t*)data;
-
- if (x11->expect_property_notify) {
- SELPRINTF("received an incr SelectionNotify while "
- "still reading another incr property");
- goto exit;
- }
-
- if (x11->clipboard_data_space < prop_min_size) {
- free(x11->clipboard_data);
- x11->clipboard_data = malloc(prop_min_size);
- if (!x11->clipboard_data) {
- SELPRINTF("out of memory allocating clipboard buffer");
- x11->clipboard_data_space = 0;
- goto exit;
- }
- x11->clipboard_data_space = prop_min_size;
- }
- x11->expect_property_notify = 1;
- XSelectInput(x11->display, x11->selection_window,
- PropertyChangeMask);
- XDeleteProperty(x11->display, x11->selection_window, prop);
- XFree(data);
- return 0; /* Wait for more data */
- }
- XDeleteProperty(x11->display, x11->selection_window, prop);
- }
-
- if (type_ret != type) {
- SELPRINTF("expected property type: %s, got: %s",
- vdagent_x11_get_atom_name(x11, type),
- vdagent_x11_get_atom_name(x11, type_ret));
- goto exit;
- }
-
- if (format_ret != format) {
- SELPRINTF("expected %d bit format, got %d bits", format, format_ret);
- goto exit;
- }
-
- /* Convert len to bytes */
- switch(format) {
- case 8:
- break;
- case 16:
- len *= sizeof(short);
- break;
- case 32:
- len *= sizeof(long);
- break;
- }
-
- if (incr) {
- if (len) {
- if (x11->clipboard_data_size + len > x11->clipboard_data_space) {
- void *old_clipboard_data = x11->clipboard_data;
-
- x11->clipboard_data_space = x11->clipboard_data_size + len;
- x11->clipboard_data = realloc(x11->clipboard_data,
- x11->clipboard_data_space);
- if (!x11->clipboard_data) {
- SELPRINTF("out of memory allocating clipboard buffer");
- x11->clipboard_data_space = 0;
- free(old_clipboard_data);
- goto exit;
- }
- }
- memcpy(x11->clipboard_data + x11->clipboard_data_size, data, len);
- x11->clipboard_data_size += len;
- VSELPRINTF("Appended %ld bytes to buffer", len);
- XFree(data);
- return 0; /* Wait for more data */
- }
- len = x11->clipboard_data_size;
- *data_ret = x11->clipboard_data;
- } else
- *data_ret = data;
-
- if (len > 0) {
- ret_val = len;
- } else {
- SELPRINTF("property contains no data (zero length)");
- *data_ret = NULL;
- }
-
-exit:
- if ((incr || ret_val == -1) && data)
- XFree(data);
-
- if (incr) {
- x11->clipboard_data_size = 0;
- x11->expect_property_notify = 0;
- }
-
- return ret_val;
-}
-
-static void vdagent_x11_get_selection_free(struct vdagent_x11 *x11,
- unsigned char *data, int incr)
-{
- if (incr) {
- /* If the clipboard has grown large return the memory to the system */
- if (x11->clipboard_data_space > 512 * 1024) {
- free(x11->clipboard_data);
- x11->clipboard_data = NULL;
- x11->clipboard_data_space = 0;
- }
- } else if (data)
- XFree(data);
-}
-
-static uint32_t vdagent_x11_target_to_type(struct vdagent_x11 *x11,
- uint8_t selection, Atom target)
-{
- int i, j;
-
- for (i = 0; i < clipboard_format_count; i++) {
- for (j = 0; j < x11->clipboard_formats[i].atom_count; j++) {
- if (x11->clipboard_formats[i].atoms[j] == target) {
- return x11->clipboard_formats[i].type;
- }
- }
- }
-
- VSELPRINTF("unexpected selection type %s",
- vdagent_x11_get_atom_name(x11, target));
- return VD_AGENT_CLIPBOARD_NONE;
-}
-
-static Atom vdagent_x11_type_to_target(struct vdagent_x11 *x11,
- uint8_t selection, uint32_t type)
-{
- int i;
-
- for (i = 0; i < x11->clipboard_type_count[selection]; i++) {
- if (x11->clipboard_agent_types[selection][i] == type) {
- return x11->clipboard_x11_targets[selection][i];
- }
- }
- SELPRINTF("client requested unavailable type %u", type);
- return None;
-}
-
-static void vdagent_x11_handle_conversion_request(struct vdagent_x11 *x11)
-{
- Atom clip = None;
-
- if (!x11->conversion_req) {
- return;
- }
-
- vdagent_x11_get_clipboard_atom(x11, x11->conversion_req->selection, &clip);
- XConvertSelection(x11->display, clip, x11->conversion_req->target,
- clip, x11->selection_window, CurrentTime);
-}
-
-static void vdagent_x11_handle_selection_notify(struct vdagent_x11 *x11,
- XEvent *event, int incr)
-{
- int len = 0;
- unsigned char *data = NULL;
- uint32_t type;
- uint8_t selection = -1;
- Atom clip = None;
-
- if (!x11->conversion_req) {
- syslog(LOG_ERR, "SelectionNotify received without a target");
- return;
- }
- vdagent_x11_get_clipboard_atom(x11, x11->conversion_req->selection, &clip);
-
- if (incr) {
- if (event->xproperty.atom != clip ||
- event->xproperty.window != x11->selection_window) {
- return;
- }
- } else {
- if (vdagent_x11_get_clipboard_selection(x11, event, &selection)) {
- len = -1;
- } else if (selection != x11->conversion_req->selection) {
- SELPRINTF("Requested data for selection %d got %d",
- (int)x11->conversion_req->selection, (int)selection);
- len = -1;
- }
- if (event->xselection.target != x11->conversion_req->target &&
- event->xselection.target != x11->incr_atom) {
- SELPRINTF("Requested %s target got %s",
- vdagent_x11_get_atom_name(x11, x11->conversion_req->target),
- vdagent_x11_get_atom_name(x11, event->xselection.target));
- len = -1;
- }
- }
-
- selection = x11->conversion_req->selection;
- type = vdagent_x11_target_to_type(x11, selection,
- x11->conversion_req->target);
- if (type == VD_AGENT_CLIPBOARD_NONE)
- SELPRINTF("internal error conversion_req has bad target %s",
- vdagent_x11_get_atom_name(x11, x11->conversion_req->target));
- if (len == 0) { /* No errors so far */
- len = vdagent_x11_get_selection(x11, event, selection,
- x11->conversion_req->target,
- clip, 8, &data, incr);
- if (len == 0) { /* waiting for more data? */
- return;
- }
- }
- if (len == -1) {
- type = VD_AGENT_CLIPBOARD_NONE;
- len = 0;
- }
-
- udscs_write(x11->vdagentd, VDAGENTD_CLIPBOARD_DATA, selection, type,
- data, len);
- vdagent_x11_get_selection_free(x11, data, incr);
-
- vdagent_x11_next_conversion_request(x11);
- vdagent_x11_handle_conversion_request(x11);
-}
-
-static Atom atom_lists_overlap(Atom *atoms1, Atom *atoms2, int l1, int l2)
-{
- int i, j;
-
- for (i = 0; i < l1; i++)
- for (j = 0; j < l2; j++)
- if (atoms1[i] == atoms2[j])
- return atoms1[i];
-
- return 0;
-}
-
-static void vdagent_x11_print_targets(struct vdagent_x11 *x11,
- uint8_t selection, const char *action, Atom *atoms, int c)
-{
- int i;
- VSELPRINTF("%s %d targets:", action, c);
- for (i = 0; i < c; i++)
- VSELPRINTF("%s", vdagent_x11_get_atom_name(x11, atoms[i]));
-}
-
-static void vdagent_x11_handle_targets_notify(struct vdagent_x11 *x11,
- XEvent *event)
-{
- int i, len;
- Atom atom, *atoms = NULL;
- uint8_t selection;
- int *type_count;
-
- if (vdagent_x11_get_clipboard_selection(x11, event, &selection)) {
- return;
- }
-
- if (!x11->expected_targets_notifies[selection]) {
- SELPRINTF("unexpected selection notify TARGETS");
- return;
- }
-
- x11->expected_targets_notifies[selection]--;
-
- /* If we have more targets_notifies pending, ignore this one, we
- are only interested in the targets list of the current owner
- (which is the last one we've requested a targets list from) */
- if (x11->expected_targets_notifies[selection]) {
- return;
- }
-
- len = vdagent_x11_get_selection(x11, event, selection,
- XA_ATOM, x11->targets_atom, 32,
- (unsigned char **)&atoms, 0);
- if (len == 0 || len == -1) /* waiting for more data or error? */
- return;
-
- /* bytes -> atoms */
- len /= sizeof(Atom);
- vdagent_x11_print_targets(x11, selection, "received", atoms, len);
-
- type_count = &x11->clipboard_type_count[selection];
- *type_count = 0;
- for (i = 0; i < clipboard_format_count; i++) {
- atom = atom_lists_overlap(x11->clipboard_formats[i].atoms, atoms,
- x11->clipboard_formats[i].atom_count, len);
- if (atom) {
- x11->clipboard_agent_types[selection][*type_count] =
- x11->clipboard_formats[i].type;
- x11->clipboard_x11_targets[selection][*type_count] = atom;
- (*type_count)++;
- if (*type_count ==
- sizeof(x11->clipboard_agent_types[0])/sizeof(uint32_t)) {
- SELPRINTF("handle_targets_notify: too many types");
- break;
- }
- }
- }
-
- if (*type_count) {
- udscs_write(x11->vdagentd, VDAGENTD_CLIPBOARD_GRAB, selection, 0,
- (uint8_t *)x11->clipboard_agent_types[selection],
- *type_count * sizeof(uint32_t));
- vdagent_x11_set_clipboard_owner(x11, selection, owner_guest);
- }
-
- vdagent_x11_get_selection_free(x11, (unsigned char *)atoms, 0);
-}
-
-static void vdagent_x11_send_selection_notify(struct vdagent_x11 *x11,
- Atom prop, struct vdagent_x11_selection_request *request)
-{
- XEvent res, *event;
-
- if (request) {
- event = &request->event;
- } else {
- event = &x11->selection_req->event;
- }
-
- res.xselection.property = prop;
- res.xselection.type = SelectionNotify;
- res.xselection.display = event->xselectionrequest.display;
- res.xselection.requestor = event->xselectionrequest.requestor;
- res.xselection.selection = event->xselectionrequest.selection;
- res.xselection.target = event->xselectionrequest.target;
- res.xselection.time = event->xselectionrequest.time;
-
- vdagent_x11_set_error_handler(x11, vdagent_x11_ignore_bad_window_handler);
- XSendEvent(x11->display, event->xselectionrequest.requestor, 0, 0, &res);
- vdagent_x11_restore_error_handler(x11);
-
- if (!request) {
- vdagent_x11_next_selection_request(x11);
- vdagent_x11_handle_selection_request(x11);
- }
-}
-
-static void vdagent_x11_send_targets(struct vdagent_x11 *x11,
- uint8_t selection, XEvent *event)
-{
- Atom prop, targets[256] = { x11->targets_atom, };
- int i, j, k, target_count = 1;
-
- for (i = 0; i < x11->clipboard_type_count[selection]; i++) {
- for (j = 0; j < clipboard_format_count; j++) {
- if (x11->clipboard_formats[j].type !=
- x11->clipboard_agent_types[selection][i])
- continue;
-
- for (k = 0; k < x11->clipboard_formats[j].atom_count; k++) {
- targets[target_count] = x11->clipboard_formats[j].atoms[k];
- target_count++;
- if (target_count == sizeof(targets)/sizeof(Atom)) {
- SELPRINTF("send_targets: too many targets");
- goto exit_loop;
- }
- }
- }
- }
-exit_loop:
-
- prop = event->xselectionrequest.property;
- if (prop == None)
- prop = event->xselectionrequest.target;
-
- vdagent_x11_set_error_handler(x11, vdagent_x11_ignore_bad_window_handler);
- XChangeProperty(x11->display, event->xselectionrequest.requestor, prop,
- XA_ATOM, 32, PropModeReplace, (unsigned char *)&targets,
- target_count);
- if (vdagent_x11_restore_error_handler(x11) == 0) {
- vdagent_x11_print_targets(x11, selection, "sent",
- targets, target_count);
- vdagent_x11_send_selection_notify(x11, prop, NULL);
- } else
- SELPRINTF("send_targets: Failed to sent, requestor window gone");
-}
-
-static void vdagent_x11_handle_selection_request(struct vdagent_x11 *x11)
-{
- XEvent *event;
- uint32_t type = VD_AGENT_CLIPBOARD_NONE;
- uint8_t selection;
-
- if (!x11->selection_req)
- return;
-
- event = &x11->selection_req->event;
- selection = x11->selection_req->selection;
-
- if (x11->clipboard_owner[selection] != owner_client) {
- SELPRINTF("received selection request event for target %s, "
- "while not owning client clipboard",
- vdagent_x11_get_atom_name(x11, event->xselectionrequest.target));
- vdagent_x11_send_selection_notify(x11, None, NULL);
- return;
- }
-
- if (event->xselectionrequest.target == x11->multiple_atom) {
- SELPRINTF("multiple target not supported");
- vdagent_x11_send_selection_notify(x11, None, NULL);
- return;
- }
-
- if (event->xselectionrequest.target == x11->timestamp_atom) {
- /* TODO: use more accurate selection time */
- guint32 timestamp = event->xselectionrequest.time;
-
- XChangeProperty(x11->display, event->xselectionrequest.requestor,
- event->xselectionrequest.property,
- event->xselectionrequest.target, 32, PropModeReplace,
- (guint8*)×tamp, 1);
- vdagent_x11_send_selection_notify(x11,
- event->xselectionrequest.property, NULL);
- return;
- }
-
-
- if (event->xselectionrequest.target == x11->targets_atom) {
- vdagent_x11_send_targets(x11, selection, event);
- return;
- }
-
- type = vdagent_x11_target_to_type(x11, selection,
- event->xselectionrequest.target);
- if (type == VD_AGENT_CLIPBOARD_NONE) {
- VSELPRINTF("guest app requested a non-advertised target");
- vdagent_x11_send_selection_notify(x11, None, NULL);
- return;
- }
-
- udscs_write(x11->vdagentd, VDAGENTD_CLIPBOARD_REQUEST, selection, type,
- NULL, 0);
-}
-
-static void vdagent_x11_handle_property_delete_notify(struct vdagent_x11 *x11,
- XEvent *del_event)
-{
- XEvent *sel_event;
- int len;
- uint8_t selection;
-
- assert(x11->selection_req);
- sel_event = &x11->selection_req->event;
- selection = x11->selection_req->selection;
- if (del_event->xproperty.window != sel_event->xselectionrequest.requestor
- || del_event->xproperty.atom != x11->selection_req_atom) {
- return;
- }
-
- len = x11->selection_req_data_size - x11->selection_req_data_pos;
- if (len > x11->max_prop_size) {
- len = x11->max_prop_size;
- }
-
- if (len) {
- VSELPRINTF("Sending %d-%d/%d bytes of clipboard data",
- x11->selection_req_data_pos,
- x11->selection_req_data_pos + len - 1,
- x11->selection_req_data_size);
- } else {
- VSELPRINTF("Ending incr send of clipboard data");
- }
- vdagent_x11_set_error_handler(x11, vdagent_x11_ignore_bad_window_handler);
- XChangeProperty(x11->display, sel_event->xselectionrequest.requestor,
- x11->selection_req_atom,
- sel_event->xselectionrequest.target, 8, PropModeReplace,
- x11->selection_req_data + x11->selection_req_data_pos,
- len);
- if (vdagent_x11_restore_error_handler(x11)) {
- SELPRINTF("incr sent failed, requestor window gone");
- len = 0;
- }
-
- x11->selection_req_data_pos += len;
-
- /* Note we must explicitly send a 0 sized XChangeProperty to signal the
- incr transfer is done. Hence we do not check if we've send all data
- but instead check we've send the final 0 sized XChangeProperty. */
- if (len == 0) {
- free(x11->selection_req_data);
- x11->selection_req_data = NULL;
- x11->selection_req_data_pos = 0;
- x11->selection_req_data_size = 0;
- x11->selection_req_atom = None;
- vdagent_x11_next_selection_request(x11);
- vdagent_x11_handle_selection_request(x11);
- }
-}
-
-void vdagent_x11_clipboard_request(struct vdagent_x11 *x11,
- uint8_t selection, uint32_t type)
-{
- Atom target, clip;
- struct vdagent_x11_conversion_request *req, *new_req;
-
- /* We don't use clip here, but we call get_clipboard_atom to verify
- selection is valid */
- if (vdagent_x11_get_clipboard_atom(x11, selection, &clip)) {
- goto none;
- }
-
- if (x11->clipboard_owner[selection] != owner_guest) {
- SELPRINTF("received clipboard req while not owning guest clipboard");
- goto none;
- }
-
- target = vdagent_x11_type_to_target(x11, selection, type);
- if (target == None) {
- goto none;
- }
-
- new_req = malloc(sizeof(*new_req));
- if (!new_req) {
- SELPRINTF("out of memory on client clipboard request, ignoring.");
- return;
- }
-
- new_req->target = target;
- new_req->selection = selection;
- new_req->next = NULL;
-
- if (!x11->conversion_req) {
- x11->conversion_req = new_req;
- vdagent_x11_handle_conversion_request(x11);
- /* Flush output buffers and consume any pending events */
- vdagent_x11_do_read(x11);
- return;
- }
-
- /* maybe we should limit the conversion_request stack depth ? */
- req = x11->conversion_req;
- while (req->next)
- req = req->next;
-
- req->next = new_req;
- return;
-
-none:
- udscs_write(x11->vdagentd, VDAGENTD_CLIPBOARD_DATA,
- selection, VD_AGENT_CLIPBOARD_NONE, NULL, 0);
-}
-
-void vdagent_x11_clipboard_grab(struct vdagent_x11 *x11, uint8_t selection,
- uint32_t *types, uint32_t type_count)
-{
- Atom clip = None;
-
- if (vdagent_x11_get_clipboard_atom(x11, selection, &clip)) {
- return;
- }
-
- if (type_count > sizeof(x11->clipboard_agent_types[0])/sizeof(uint32_t)) {
- SELPRINTF("x11_clipboard_grab: too many types");
- type_count = sizeof(x11->clipboard_agent_types[0])/sizeof(uint32_t);
- }
-
- memcpy(x11->clipboard_agent_types[selection], types,
- type_count * sizeof(uint32_t));
- x11->clipboard_type_count[selection] = type_count;
-
- XSetSelectionOwner(x11->display, clip,
- x11->selection_window, CurrentTime);
- vdagent_x11_set_clipboard_owner(x11, selection, owner_client);
-
- /* Flush output buffers and consume any pending events */
- vdagent_x11_do_read(x11);
-}
-
-void vdagent_x11_clipboard_data(struct vdagent_x11 *x11, uint8_t selection,
- uint32_t type, uint8_t *data, uint32_t size)
-{
- Atom prop;
- XEvent *event;
- uint32_t type_from_event;
-
- if (x11->selection_req_data) {
- if (type || size) {
- SELPRINTF("received clipboard data while still sending"
- " data from previous request, ignoring");
- }
- return;
- }
-
- if (!x11->selection_req) {
- if (type || size) {
- SELPRINTF("received clipboard data without an "
- "outstanding selection request, ignoring");
- }
- return;
- }
-
- event = &x11->selection_req->event;
- type_from_event = vdagent_x11_target_to_type(x11,
- x11->selection_req->selection,
- event->xselectionrequest.target);
- if (type_from_event != type ||
- selection != x11->selection_req->selection) {
- if (selection != x11->selection_req->selection) {
- SELPRINTF("expecting data for selection %d got %d",
- (int)x11->selection_req->selection, (int)selection);
- }
- if (type_from_event != type) {
- SELPRINTF("expecting type %u clipboard data got %u",
- type_from_event, type);
- }
- vdagent_x11_send_selection_notify(x11, None, NULL);
-
- /* Flush output buffers and consume any pending events */
- vdagent_x11_do_read(x11);
- return;
- }
-
- prop = event->xselectionrequest.property;
- if (prop == None)
- prop = event->xselectionrequest.target;
-
- if (size > x11->max_prop_size) {
- unsigned long len = size;
- VSELPRINTF("Starting incr send of clipboard data");
-
- vdagent_x11_set_error_handler(x11, vdagent_x11_ignore_bad_window_handler);
- XSelectInput(x11->display, event->xselectionrequest.requestor,
- PropertyChangeMask);
- XChangeProperty(x11->display, event->xselectionrequest.requestor, prop,
- x11->incr_atom, 32, PropModeReplace,
- (unsigned char*)&len, 1);
- if (vdagent_x11_restore_error_handler(x11) == 0) {
- /* duplicate data */
- x11->selection_req_data = malloc(size);
- if (x11->selection_req_data != NULL) {
- memcpy(x11->selection_req_data, data, size);
- x11->selection_req_data_pos = 0;
- x11->selection_req_data_size = size;
- x11->selection_req_atom = prop;
- vdagent_x11_send_selection_notify(x11, prop, x11->selection_req);
- } else {
- SELPRINTF("out of memory allocating selection buffer");
- }
- } else {
- SELPRINTF("clipboard data sent failed, requestor window gone");
- }
- } else {
- vdagent_x11_set_error_handler(x11, vdagent_x11_ignore_bad_window_handler);
- XChangeProperty(x11->display, event->xselectionrequest.requestor, prop,
- event->xselectionrequest.target, 8, PropModeReplace,
- data, size);
- if (vdagent_x11_restore_error_handler(x11) == 0)
- vdagent_x11_send_selection_notify(x11, prop, NULL);
- else
- SELPRINTF("clipboard data sent failed, requestor window gone");
- }
-
- /* Flush output buffers and consume any pending events */
- vdagent_x11_do_read(x11);
-}
-
-void vdagent_x11_clipboard_release(struct vdagent_x11 *x11, uint8_t selection)
-{
- XEvent event;
- Atom clip = None;
-
- if (vdagent_x11_get_clipboard_atom(x11, selection, &clip)) {
- return;
- }
-
- if (x11->clipboard_owner[selection] != owner_client) {
- VSELPRINTF("received release while not owning client clipboard");
- return;
- }
-
- XSetSelectionOwner(x11->display, clip, None, CurrentTime);
- /* Make sure we process the XFixesSetSelectionOwnerNotify event caused
- by this, so we don't end up changing the clipboard owner to none, after
- it has already been re-owned because this event is still pending. */
- XSync(x11->display, False);
- while (XCheckTypedEvent(x11->display, x11->xfixes_event_base,
- &event))
- vdagent_x11_handle_event(x11, event);
-
- /* Note no need to do a set_clipboard_owner(owner_none) here, as that is
- already done by processing the XFixesSetSelectionOwnerNotify event. */
-
- /* Flush output buffers and consume any pending events */
- vdagent_x11_do_read(x11);
-}
-
-void vdagent_x11_client_disconnected(struct vdagent_x11 *x11)
-{
- int sel;
-
- for (sel = 0; sel < VD_AGENT_CLIPBOARD_SELECTION_SECONDARY; sel++) {
- if (x11->clipboard_owner[sel] == owner_client)
- vdagent_x11_clipboard_release(x11, sel);
- }
-}
-
/* Function used to determine the default location to save file-xfers,
xdg desktop dir or xdg download dir. We err on the safe side and use a
whitelist approach, so any unknown desktop will end up with saving
diff --git a/src/vdagent/x11.h b/src/vdagent/x11.h
index a8ceb08..6ad09c2 100644
--- a/src/vdagent/x11.h
+++ b/src/vdagent/x11.h
@@ -38,16 +38,6 @@ void vdagent_x11_do_read(struct vdagent_x11 *x11);
void vdagent_x11_set_monitor_config(struct vdagent_x11 *x11,
VDAgentMonitorsConfig *mon_config, int fallback);
-void vdagent_x11_clipboard_grab(struct vdagent_x11 *x11, uint8_t selection,
- uint32_t *types, uint32_t type_count);
-void vdagent_x11_clipboard_request(struct vdagent_x11 *x11,
- uint8_t selection, uint32_t type);
-void vdagent_x11_clipboard_data(struct vdagent_x11 *x11, uint8_t selection,
- uint32_t type, uint8_t *data, uint32_t size);
-void vdagent_x11_clipboard_release(struct vdagent_x11 *x11, uint8_t selection);
-
-void vdagent_x11_client_disconnected(struct vdagent_x11 *x11);
-
int vdagent_x11_has_icons_on_desktop();
#endif
--
2.14.3
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