else:
assert starting or upgrading
from xpra.x11.gtk_x11 import gdk_display_source
assert gdk_display_source
#(now we can access the X11 server)
if clobber:
#get the saved pid (there should be one):
xvfb_pid = get_xvfb_pid()
elif xvfb_pid is not None:
#save the new pid (we should have one):
save_xvfb_pid(xvfb_pid)
#check for an existing window manager:
from xpra.x11.gtk_x11.wm import wm_check
if not wm_check(display, upgrading):
return 1
try:
# This import is delayed because the module depends on gtk:
from xpra.x11.server import XpraServer
from xpra.x11.bindings.window_bindings import X11WindowBindings #@UnresolvedImport
X11Window = X11WindowBindings()
except ImportError, e:
log.error(
"Failed to load Xpra server components, check your installation: %s"
% e)
return 1
if not X11Window.displayHasXComposite():
log.error(
"Xpra is a compositing manager, it cannot use a display which lacks the XComposite extension!"
)
else:
assert starting or upgrading
from xpra.x11.gtk_x11 import gdk_display_source
assert gdk_display_source
#(now we can access the X11 server)
if clobber:
#get the saved pid (there should be one):
xvfb_pid = get_xvfb_pid()
elif xvfb_pid is not None:
#save the new pid (we should have one):
save_xvfb_pid(xvfb_pid)
#check for an existing window manager:
from xpra.x11.gtk_x11.wm import wm_check
if not wm_check(display, upgrading):
return 1
try:
# This import is delayed because the module depends on gtk:
from xpra.x11.server import XpraServer
from xpra.x11.bindings.window_bindings import X11WindowBindings #@UnresolvedImport
X11Window = X11WindowBindings()
except ImportError, e:
log.error("Failed to load Xpra server components, check your installation: %s" % e)
return 1
if not X11Window.displayHasXComposite():
log.error("Xpra is a compositing manager, it cannot use a display which lacks the XComposite extension!")
return 1
app = XpraServer()
app.init(clobber, opts)
_cleanups.insert(0, app.cleanup)
else:
assert starting or upgrading
from xpra.x11.gtk_x11 import gdk_display_source
assert gdk_display_source
#(now we can access the X11 server)
if clobber:
#get the saved pid (there should be one):
xvfb_pid = get_xvfb_pid()
elif xvfb_pid is not None:
#save the new pid (we should have one):
save_xvfb_pid(xvfb_pid)
#check for an existing window manager:
from xpra.x11.gtk_x11.wm import wm_check
if not wm_check(display, opts.wm_name, upgrading):
return 1
try:
# This import is delayed because the module depends on gtk:
from xpra.x11.server import XpraServer
from xpra.x11.bindings.window_bindings import X11WindowBindings #@UnresolvedImport
X11Window = X11WindowBindings()
except ImportError, e:
log.error(
"Failed to load Xpra server components, check your installation: %s"
% e)
return 1
if not X11Window.displayHasXComposite():
log.error(
"Xpra is a compositing manager, it cannot use a display which lacks the XComposite extension!"
)
from xpra.x11.gtk_x11 import gdk_display_source
assert gdk_display_source
# (now we can access the X11 server)
if clobber:
# get the saved pid (there should be one):
xvfb_pid = get_xvfb_pid()
elif xvfb_pid is not None:
# save the new pid (we should have one):
save_xvfb_pid(xvfb_pid)
# check for an existing window manager:
from xpra.x11.gtk_x11.wm import wm_check
if not wm_check(display, opts.wm_name, upgrading):
return 1
try:
# This import is delayed because the module depends on gtk:
from xpra.x11.server import XpraServer
from xpra.x11.bindings.window_bindings import X11WindowBindings # @UnresolvedImport
X11Window = X11WindowBindings()
except ImportError, e:
log.error("Failed to load Xpra server components, check your installation: %s" % e)
return 1
if not X11Window.displayHasXComposite():
log.error("Xpra is a compositing manager, it cannot use a display which lacks the XComposite extension!")
return 1
app = XpraServer()
app.exec_cwd = cwd
def run_server(error_cb, opts, mode, xpra_file, extra_args):
try:
cwd = os.getcwd()
except:
cwd = os.path.expanduser("~")
sys.stderr.write("current working directory does not exist, using '%s'\n" % cwd)
if opts.encoding and opts.encoding=="help":
#avoid errors and warnings:
opts.encoding = ""
opts.clipboard = False
opts.notifications = False
print("xpra server supports the following encodings:")
print("(please wait, encoder initialization may take a few seconds)")
#disable info logging which would be confusing here
from xpra.log import get_all_loggers, set_default_level
import logging
set_default_level(logging.WARN)
logging.root.setLevel(logging.WARN)
for x in get_all_loggers():
x.logger.setLevel(logging.WARN)
from xpra.server.server_base import ServerBase
sb = ServerBase()
sb.init(opts)
#ensures that the threaded video helper init has completed
#(by running it again, which will block on the init lock)
from xpra.codecs.video_helper import getVideoHelper
getVideoHelper().init()
sb.init_encodings()
from xpra.codecs.loader import encoding_help
for e in sb.encodings:
print(" * %s" % encoding_help(e))
return 0
assert mode in ("start", "upgrade", "shadow", "proxy")
starting = mode == "start"
upgrading = mode == "upgrade"
shadowing = mode == "shadow"
proxying = mode == "proxy"
clobber = upgrading or opts.use_display
if upgrading or shadowing:
#there should already be one running
opts.pulseaudio = False
#get the display name:
if shadowing and len(extra_args)==0:
if sys.platform.startswith("win") or sys.platform.startswith("darwin"):
#just a virtual name for the only display available:
display_name = ":0"
else:
from xpra.scripts.main import guess_X11_display
display_name = guess_X11_display(opts.socket_dir)
elif upgrading and len(extra_args)==0:
from xpra.scripts.main import guess_xpra_display
display_name = guess_xpra_display(opts.socket_dir)
else:
if len(extra_args) > 1:
error_cb("too many extra arguments: only expected a display number")
if len(extra_args) == 1:
display_name = extra_args[0]
if not shadowing and not proxying:
display_name_check(display_name)
else:
if proxying:
error_cb("you must specify a free virtual display name to use with the proxy server")
if not opts.displayfd:
error_cb("displayfd support is not enabled on this system, you must specify the display to use")
if opts.use_display:
#only use automatic guess for xpra displays and not X11 displays:
from xpra.scripts.main import guess_xpra_display #@Reimport
display_name = guess_xpra_display(opts.socket_dir)
else:
# We will try to find one automaticaly
# Use the temporary magic value 'S' as marker:
display_name = 'S' + str(os.getpid())
if not shadowing and not proxying and not upgrading and opts.exit_with_children and not opts.start_child:
error_cb("--exit-with-children specified without any children to spawn; exiting immediately")
atexit.register(run_cleanups)
#the server class will usually override those:
signal.signal(signal.SIGINT, deadly_signal)
signal.signal(signal.SIGTERM, deadly_signal)
dotxpra = DotXpra(opts.socket_dir)
# Generate the script text now, because os.getcwd() will
# change if/when we daemonize:
script = xpra_runner_shell_script(xpra_file, os.getcwd(), opts.socket_dir)
stdout = sys.stdout
stderr = sys.stderr
# Daemonize:
if opts.daemon:
#daemonize will chdir to "/", so try to use an absolute path:
if opts.password_file:
opts.password_file = os.path.abspath(opts.password_file)
# At this point we may not know the display name,
# so log_filename0 may point to a temporary file which we will rename later
log_filename0 = select_log_file(dotxpra, opts.log_file, display_name)
logfd = open_log_file(log_filename0)
assert logfd > 2
stdout, stderr = daemonize(logfd)
try:
stderr.write("Entering daemon mode; "
+ "any further errors will be reported to:\n"
+ (" %s\n" % log_filename0))
except:
#this can happen if stderr is closed by the caller already
pass
if os.name=="posix":
# Write out a shell-script so that we can start our proxy in a clean
# environment:
write_runner_shell_script(dotxpra, script)
from xpra.log import Logger
log = Logger("server")
mdns_recs = []
sockets = []
try:
# Initialize the TCP sockets before the display,
# That way, errors won't make us kill the Xvfb
# (which may not be ours to kill at that point)
bind_tcp = parse_bind_tcp(opts.bind_tcp)
for host, iport in bind_tcp:
socket = setup_tcp_socket(host, iport)
sockets.append(socket)
if opts.mdns:
mdns_recs.append(("tcp", bind_tcp))
except Exception as e:
log.error("cannot start server: failed to setup sockets: %s", e)
return 1
# Do this after writing out the shell script:
if display_name[0] != 'S':
os.environ["DISPLAY"] = display_name
sanitize_env()
configure_imsettings_env(opts.input_method)
# Start the Xvfb server first to get the display_name if needed
xvfb = None
xvfb_pid = None
if not shadowing and not proxying and not clobber:
try:
xvfb, display_name = start_Xvfb(opts.xvfb, display_name)
except OSError as e:
log.error("Error starting Xvfb: %s\n", e)
return 1
xvfb_pid = xvfb.pid
#always update as we may now have the "real" display name:
os.environ["DISPLAY"] = display_name
if opts.daemon:
log_filename1 = select_log_file(dotxpra, opts.log_file, display_name)
if log_filename0 != log_filename1:
# we now have the correct log filename, so use it:
os.rename(log_filename0, log_filename1)
stderr.write("Actual log file name is now: %s\n" % log_filename1)
stdout.close()
stderr.close()
if not check_xvfb_process(xvfb):
#xvfb problem: exit now
return 1
#setup unix domain socket:
socket, cleanup_socket = setup_local_socket(dotxpra, display_name, clobber, opts.mmap_group, opts.socket_permissions)
if socket: #win32 returns None!
sockets.append(socket)
if opts.mdns:
ssh_port = get_ssh_port()
if ssh_port:
mdns_recs.append(("ssh", [("", ssh_port)]))
#publish mdns records:
if opts.mdns:
from xpra.platform.info import get_username
mdns_info = {"display" : display_name,
"username": get_username()}
if opts.session_name:
mdns_info["session"] = opts.session_name
for mode, listen_on in mdns_recs:
mdns_publish(display_name, mode, listen_on, mdns_info)
if not check_xvfb_process(xvfb):
#xvfb problem: exit now
return 1
display = None
if not sys.platform.startswith("win") and not sys.platform.startswith("darwin") and not proxying:
display = verify_display_ready(xvfb, display_name, shadowing)
if not display:
return 1
elif not proxying:
assert "gtk" not in sys.modules
import gtk #@Reimport
assert gtk
if shadowing:
from xpra.platform.shadow_server import ShadowServer
app = ShadowServer()
info = "shadow"
elif proxying:
from xpra.server.proxy_server import ProxyServer
app = ProxyServer()
info = "proxy"
else:
assert starting or upgrading
from xpra.x11.gtk_x11 import gdk_display_source
assert gdk_display_source
#(now we can access the X11 server)
if clobber:
#get the saved pid (there should be one):
xvfb_pid = get_xvfb_pid()
elif xvfb_pid is not None:
#save the new pid (we should have one):
save_xvfb_pid(xvfb_pid)
#check for an existing window manager:
from xpra.x11.gtk_x11.wm import wm_check
if not wm_check(display, opts.wm_name, upgrading):
return 1
try:
# This import is delayed because the module depends on gtk:
from xpra.x11.server import XpraServer
from xpra.x11.bindings.window_bindings import X11WindowBindings #@UnresolvedImport
X11Window = X11WindowBindings()
except ImportError as e:
log.error("Failed to load Xpra server components, check your installation: %s" % e)
return 1
if not X11Window.displayHasXComposite():
log.error("Xpra is a compositing manager, it cannot use a display which lacks the XComposite extension!")
return 1
app = XpraServer(clobber)
info = "xpra"
try:
app.exec_cwd = cwd
app.init(opts)
except Exception as e:
log.error("Error: cannot start the %s server", info, exc_info=True)
log.error(str(e))
log.info("")
return 1
#honour start child, html webserver, and setup child reaper
if os.name=="posix" and not proxying and not upgrading and not shadowing:
# start websockify?
try:
start_websockify(app.child_reaper, opts, bind_tcp)
#websockify overrides the tcp proxy, so we must re-set it:
app._tcp_proxy = opts.tcp_proxy
except Exception as e:
error_cb("failed to setup websockify html server: %s" % e)
if opts.exit_with_children:
assert opts.start_child, "exit-with-children was specified but start-child is missing!"
if opts.start:
for x in opts.start:
if x:
app.start_child(x, x, True)
if opts.start_child:
for x in opts.start_child:
if x:
app.start_child(x, x, False)
log("%s(%s)", app.init_sockets, sockets)
app.init_sockets(sockets)
log("%s(%s)", app.init_when_ready, _when_ready)
app.init_when_ready(_when_ready)
#we got this far so the sockets have initialized and
#the server should be able to manage the display
#from now on, if we exit without upgrading we will also kill the Xvfb
def kill_xvfb():
# Close our display(s) first, so the server dying won't kill us.
log.info("killing xvfb with pid %s" % xvfb_pid)
import gtk #@Reimport
for display in gtk.gdk.display_manager_get().list_displays():
display.close()
os.kill(xvfb_pid, signal.SIGTERM)
if xvfb_pid is not None and not opts.use_display and not shadowing:
_cleanups.append(kill_xvfb)
try:
log("running %s", app.run)
e = app.run()
log("%s()=%s", app.run, e)
except KeyboardInterrupt:
log.info("stopping on KeyboardInterrupt")
e = 0
except Exception as e:
log.error("server error", exc_info=True)
e = -128
if e>0:
# Upgrading/exiting, so leave X server running
if kill_xvfb in _cleanups:
_cleanups.remove(kill_xvfb)
from xpra.server.server_core import ServerCore
if e==ServerCore.EXITING_CODE:
log.info("exiting: not cleaning up Xvfb")
elif cleanup_socket in _cleanups:
log.info("upgrading: not cleaning up Xvfb or socket")
# don't delete the new socket (not ours)
_cleanups.remove(cleanup_socket)
log("cleanups=%s", _cleanups)
e = 0
return e
def run_server(error_cb, opts, mode, xpra_file, extra_args):
try:
cwd = os.getcwd()
except:
cwd = os.path.expanduser("~")
sys.stderr.write(
"current working directory does not exist, using '%s'\n" % cwd)
if opts.encoding and opts.encoding == "help":
#avoid errors and warnings:
opts.encoding = ""
opts.clipboard = False
opts.notifications = False
print("xpra server supports the following encodings:")
print("(please wait, encoder initialization may take a few seconds)")
#disable info logging which would be confusing here
from xpra.log import get_all_loggers, set_default_level
import logging
set_default_level(logging.WARN)
logging.root.setLevel(logging.WARN)
for x in get_all_loggers():
x.logger.setLevel(logging.WARN)
from xpra.server.server_base import ServerBase
sb = ServerBase()
sb.init(opts)
#ensures that the threaded video helper init has completed
#(by running it again, which will block on the init lock)
from xpra.codecs.video_helper import getVideoHelper
getVideoHelper().init()
sb.init_encodings()
from xpra.codecs.loader import encoding_help
for e in sb.encodings:
print(" * %s" % encoding_help(e))
return 0
assert mode in ("start", "upgrade", "shadow", "proxy")
starting = mode == "start"
upgrading = mode == "upgrade"
shadowing = mode == "shadow"
proxying = mode == "proxy"
clobber = upgrading or opts.use_display
if upgrading or shadowing:
#there should already be one running
opts.pulseaudio = False
#get the display name:
if shadowing and len(extra_args) == 0:
if sys.platform.startswith("win") or sys.platform.startswith("darwin"):
#just a virtual name for the only display available:
display_name = ":0"
else:
from xpra.scripts.main import guess_X11_display
display_name = guess_X11_display(opts.socket_dir)
elif upgrading and len(extra_args) == 0:
from xpra.scripts.main import guess_xpra_display
display_name = guess_xpra_display(opts.socket_dir)
else:
if len(extra_args) > 1:
error_cb(
"too many extra arguments: only expected a display number")
if len(extra_args) == 1:
display_name = extra_args[0]
if not shadowing and not proxying:
display_name_check(display_name)
else:
if proxying:
error_cb(
"you must specify a free virtual display name to use with the proxy server"
)
if not opts.displayfd:
error_cb(
"displayfd support is not enabled on this system, you must specify the display to use"
)
if opts.use_display:
#only use automatic guess for xpra displays and not X11 displays:
from xpra.scripts.main import guess_xpra_display #@Reimport
display_name = guess_xpra_display(opts.socket_dir)
else:
# We will try to find one automaticaly
# Use the temporary magic value 'S' as marker:
display_name = 'S' + str(os.getpid())
if not shadowing and not proxying and not upgrading and opts.exit_with_children and not opts.start_child:
error_cb(
"--exit-with-children specified without any children to spawn; exiting immediately"
)
atexit.register(run_cleanups)
#the server class will usually override those:
signal.signal(signal.SIGINT, deadly_signal)
signal.signal(signal.SIGTERM, deadly_signal)
dotxpra = DotXpra(opts.socket_dir)
# Generate the script text now, because os.getcwd() will
# change if/when we daemonize:
script = xpra_runner_shell_script(xpra_file, os.getcwd(), opts.socket_dir)
stdout = sys.stdout
stderr = sys.stderr
# Daemonize:
if opts.daemon:
#daemonize will chdir to "/", so try to use an absolute path:
if opts.password_file:
opts.password_file = os.path.abspath(opts.password_file)
# At this point we may not know the display name,
# so log_filename0 may point to a temporary file which we will rename later
log_filename0 = select_log_file(dotxpra, opts.log_file, display_name)
logfd = open_log_file(log_filename0)
assert logfd > 2
stdout, stderr = daemonize(logfd)
try:
stderr.write("Entering daemon mode; " +
"any further errors will be reported to:\n" +
(" %s\n" % log_filename0))
except:
#this can happen if stderr is closed by the caller already
pass
if os.name == "posix":
# Write out a shell-script so that we can start our proxy in a clean
# environment:
write_runner_shell_script(dotxpra, script)
from xpra.log import Logger
log = Logger("server")
mdns_recs = []
sockets = []
try:
# Initialize the TCP sockets before the display,
# That way, errors won't make us kill the Xvfb
# (which may not be ours to kill at that point)
bind_tcp = parse_bind_tcp(opts.bind_tcp)
for host, iport in bind_tcp:
socket = setup_tcp_socket(host, iport)
sockets.append(socket)
if opts.mdns:
mdns_recs.append(("tcp", bind_tcp))
except Exception as e:
log.error("cannot start server: failed to setup sockets: %s", e)
return 1
# Do this after writing out the shell script:
if display_name[0] != 'S':
os.environ["DISPLAY"] = display_name
sanitize_env()
configure_imsettings_env(opts.input_method)
# Start the Xvfb server first to get the display_name if needed
xvfb = None
xvfb_pid = None
if not shadowing and not proxying and not clobber:
try:
xvfb, display_name = start_Xvfb(opts.xvfb, display_name)
except OSError as e:
log.error("Error starting Xvfb: %s\n", e)
return 1
xvfb_pid = xvfb.pid
#always update as we may now have the "real" display name:
os.environ["DISPLAY"] = display_name
if opts.daemon:
log_filename1 = select_log_file(dotxpra, opts.log_file, display_name)
if log_filename0 != log_filename1:
# we now have the correct log filename, so use it:
os.rename(log_filename0, log_filename1)
stderr.write("Actual log file name is now: %s\n" % log_filename1)
stdout.close()
stderr.close()
if not check_xvfb_process(xvfb):
#xvfb problem: exit now
return 1
#setup unix domain socket:
socket, cleanup_socket = setup_local_socket(dotxpra, display_name, clobber,
opts.mmap_group,
opts.socket_permissions)
if socket: #win32 returns None!
sockets.append(socket)
if opts.mdns:
ssh_port = get_ssh_port()
if ssh_port:
mdns_recs.append(("ssh", [("", ssh_port)]))
#publish mdns records:
if opts.mdns:
from xpra.platform.info import get_username
mdns_info = {"display": display_name, "username": get_username()}
if opts.session_name:
mdns_info["session"] = opts.session_name
for mode, listen_on in mdns_recs:
mdns_publish(display_name, mode, listen_on, mdns_info)
if not check_xvfb_process(xvfb):
#xvfb problem: exit now
return 1
display = None
if not sys.platform.startswith("win") and not sys.platform.startswith(
"darwin") and not proxying:
display = verify_display_ready(xvfb, display_name, shadowing)
if not display:
return 1
elif not proxying:
assert "gtk" not in sys.modules
import gtk #@Reimport
assert gtk
if shadowing:
from xpra.platform.shadow_server import ShadowServer
app = ShadowServer()
info = "shadow"
elif proxying:
from xpra.server.proxy_server import ProxyServer
app = ProxyServer()
info = "proxy"
else:
assert starting or upgrading
from xpra.x11.gtk_x11 import gdk_display_source
assert gdk_display_source
#(now we can access the X11 server)
if clobber:
#get the saved pid (there should be one):
xvfb_pid = get_xvfb_pid()
elif xvfb_pid is not None:
#save the new pid (we should have one):
save_xvfb_pid(xvfb_pid)
#check for an existing window manager:
from xpra.x11.gtk_x11.wm import wm_check
if not wm_check(display, opts.wm_name, upgrading):
return 1
try:
# This import is delayed because the module depends on gtk:
from xpra.x11.server import XpraServer
from xpra.x11.bindings.window_bindings import X11WindowBindings #@UnresolvedImport
X11Window = X11WindowBindings()
except ImportError as e:
log.error(
"Failed to load Xpra server components, check your installation: %s"
% e)
return 1
if not X11Window.displayHasXComposite():
log.error(
"Xpra is a compositing manager, it cannot use a display which lacks the XComposite extension!"
)
return 1
app = XpraServer(clobber)
info = "xpra"
try:
app.exec_cwd = cwd
app.init(opts)
except Exception as e:
log.error("Error: cannot start the %s server", info, exc_info=True)
log.error(str(e))
log.info("")
return 1
#honour start child, html webserver, and setup child reaper
if os.name == "posix" and not proxying and not upgrading and not shadowing:
# start websockify?
try:
start_websockify(app.child_reaper, opts, bind_tcp)
#websockify overrides the tcp proxy, so we must re-set it:
app._tcp_proxy = opts.tcp_proxy
except Exception as e:
error_cb("failed to setup websockify html server: %s" % e)
if opts.exit_with_children:
assert opts.start_child, "exit-with-children was specified but start-child is missing!"
if opts.start:
for x in opts.start:
if x:
app.start_child(x, x, True)
if opts.start_child:
for x in opts.start_child:
if x:
app.start_child(x, x, False)
log("%s(%s)", app.init_sockets, sockets)
app.init_sockets(sockets)
log("%s(%s)", app.init_when_ready, _when_ready)
app.init_when_ready(_when_ready)
#we got this far so the sockets have initialized and
#the server should be able to manage the display
#from now on, if we exit without upgrading we will also kill the Xvfb
def kill_xvfb():
# Close our display(s) first, so the server dying won't kill us.
log.info("killing xvfb with pid %s" % xvfb_pid)
import gtk #@Reimport
for display in gtk.gdk.display_manager_get().list_displays():
display.close()
os.kill(xvfb_pid, signal.SIGTERM)
if xvfb_pid is not None and not opts.use_display and not shadowing:
_cleanups.append(kill_xvfb)
try:
log("running %s", app.run)
e = app.run()
log("%s()=%s", app.run, e)
except KeyboardInterrupt:
log.info("stopping on KeyboardInterrupt")
e = 0
except Exception as e:
log.error("server error", exc_info=True)
e = -128
if e > 0:
# Upgrading/exiting, so leave X server running
if kill_xvfb in _cleanups:
_cleanups.remove(kill_xvfb)
from xpra.server.server_core import ServerCore
if e == ServerCore.EXITING_CODE:
log.info("exiting: not cleaning up Xvfb")
elif cleanup_socket in _cleanups:
log.info("upgrading: not cleaning up Xvfb or socket")
# don't delete the new socket (not ours)
_cleanups.remove(cleanup_socket)
log("cleanups=%s", _cleanups)
e = 0
return e
