def create_unix_domain_socket(display_name, upgrading):
dotxpra = DotXpra()
sockpath = dotxpra.server_socket_path(display_name, upgrading)
listener = socket.socket(socket.AF_UNIX)
listener.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
listener.bind(sockpath)
return listener
def run_server(parser, opts, mode, xpra_file, extra_args):
if len(extra_args) != 1:
parser.error("need exactly 1 extra argument")
display_name = extra_args.pop(0)
if opts.exit_with_children and not opts.children:
print(
"--exit-with-children specified without any children to spawn; exiting immediately"
)
return
atexit.register(run_cleanups)
signal.signal(signal.SIGINT, deadly_signal)
signal.signal(signal.SIGTERM, deadly_signal)
assert mode in ("start", "upgrade")
upgrading = (mode == "upgrade")
dotxpra = DotXpra(opts.sockdir)
# This used to be given a display-specific name, but now we give it a
# single fixed name and if multiple servers are started then the last one
# will clobber the rest. This isn't great, but the tradeoff is that it
# makes it possible to use bare 'ssh:hostname' display names and
# autodiscover the proper numeric display name when only one xpra server
# is running on the remote host. Might need to revisit this later if
# people run into problems or autodiscovery turns out to be less useful
# than expected.
scriptpath = os.path.join(dotxpra.confdir(), "run-xpra")
# Save the starting dir now, because we'll lose track of it when we
# daemonize:
starting_dir = os.getcwd()
clobber = upgrading or opts.use_display
try:
sockpath = dotxpra.server_socket_path(display_name, clobber)
except ServerSockInUse:
parser.error("You already have an xpra server running at %s\n"
" (did you want 'xpra upgrade'?)" % (display_name, ))
# Daemonize:
if opts.daemon:
logpath = dotxpra.conf_path(display_name) + ".log"
sys.stderr.write("Entering daemon mode; " +
"any further errors will be reported to:\n" +
(" %s\n" % logpath))
# Do some work up front, so any errors don't get lost.
if os.path.exists(logpath):
os.rename(logpath, logpath + ".old")
logfd = os.open(logpath, os.O_WRONLY | os.O_CREAT | os.O_TRUNC, o0666)
assert logfd > 2
os.chdir("/")
if os.fork():
os._exit(0)
os.setsid()
if os.fork():
os._exit(0)
close_all_fds(exceptions=[logfd])
fd0 = os.open("/dev/null", os.O_RDONLY)
if fd0 != 0:
os.dup2(fd0, 0)
os.close(fd0)
os.dup2(logfd, 1)
os.dup2(logfd, 2)
os.close(logfd)
# Make these line-buffered:
sys.stdout = os.fdopen(1, "w", 1)
sys.stderr = os.fdopen(2, "w", 1)
# Write out a shell-script so that we can start our proxy in a clean
# environment:
scriptfile = open(scriptpath, "w")
# Unix is a little silly sometimes:
umask = os.umask(0)
os.umask(umask)
if hasattr(os, "fchmod"):
os.fchmod(scriptfile.fileno(), o0700 & ~umask)
else:
os.chmod(scriptpath, o0700 & ~umask)
scriptfile.write(xpra_runner_shell_script(xpra_file, starting_dir))
scriptfile.close()
# Do this after writing out the shell script:
os.environ["DISPLAY"] = display_name
if not clobber:
# We need to set up a new server environment
xauthority = os.environ.get("XAUTHORITY",
os.path.expanduser("~/.Xauthority"))
xvfb_cmd = opts.xvfb.replace("$XAUTHORITY", xauthority).split()
xvfb_executable = xvfb_cmd[0]
xvfb_cmd[0] = "%s-for-Xpra-%s" % (xvfb_executable, display_name)
try:
xvfb = subprocess.Popen(xvfb_cmd + [display_name],
executable=xvfb_executable)
except OSError, e:
sys.stderr.write("Error starting Xvfb: %s\n" % (e, ))
return
raw_cookie = os.urandom(16)
baked_cookie = raw_cookie.encode("hex")
try:
code = subprocess.call([
"xauth", "add", display_name, "MIT-MAGIC-COOKIE-1",
baked_cookie
])
if code != 0:
raise OSError("non-zero exit code: %s" % code)
except OSError, e:
sys.stderr.write("Error running xauth: %s\n" % e)
def run_server(parser, opts, mode, xpra_file, extra_args):
if len(extra_args) != 1:
parser.error("need exactly 1 extra argument")
display_name = extra_args.pop(0)
if opts.exit_with_children and not opts.children:
print("--exit-with-children specified without any children to spawn; exiting immediately")
return
atexit.register(run_cleanups)
signal.signal(signal.SIGINT, deadly_signal)
signal.signal(signal.SIGTERM, deadly_signal)
assert mode in ("start", "upgrade")
upgrading = (mode == "upgrade")
dotxpra = DotXpra(opts.sockdir)
# This used to be given a display-specific name, but now we give it a
# single fixed name and if multiple servers are started then the last one
# will clobber the rest. This isn't great, but the tradeoff is that it
# makes it possible to use bare 'ssh:hostname' display names and
# autodiscover the proper numeric display name when only one xpra server
# is running on the remote host. Might need to revisit this later if
# people run into problems or autodiscovery turns out to be less useful
# than expected.
scriptpath = os.path.join(dotxpra.confdir(), "run-xpra")
# Save the starting dir now, because we'll lose track of it when we
# daemonize:
starting_dir = os.getcwd()
clobber = upgrading or opts.use_display
try:
sockpath = dotxpra.server_socket_path(display_name, clobber)
except ServerSockInUse:
parser.error("You already have an xpra server running at %s\n"
" (did you want 'xpra upgrade'?)"
% (display_name,))
# Daemonize:
if opts.daemon:
logpath = dotxpra.conf_path(display_name) + ".log"
sys.stderr.write("Entering daemon mode; "
+ "any further errors will be reported to:\n"
+ (" %s\n" % logpath))
# Do some work up front, so any errors don't get lost.
if os.path.exists(logpath):
os.rename(logpath, logpath + ".old")
logfd = os.open(logpath, os.O_WRONLY | os.O_CREAT | os.O_TRUNC, o0666)
assert logfd > 2
os.chdir("/")
if os.fork():
os._exit(0)
os.setsid()
if os.fork():
os._exit(0)
close_all_fds(exceptions=[logfd])
fd0 = os.open("/dev/null", os.O_RDONLY)
if fd0 != 0:
os.dup2(fd0, 0)
os.close(fd0)
os.dup2(logfd, 1)
os.dup2(logfd, 2)
os.close(logfd)
# Make these line-buffered:
sys.stdout = os.fdopen(1, "w", 1)
sys.stderr = os.fdopen(2, "w", 1)
# Write out a shell-script so that we can start our proxy in a clean
# environment:
scriptfile = open(scriptpath, "w")
# Unix is a little silly sometimes:
umask = os.umask(0)
os.umask(umask)
if hasattr(os, "fchmod"):
os.fchmod(scriptfile.fileno(), o0700 & ~umask)
else:
os.chmod(scriptpath, o0700 & ~umask)
scriptfile.write(xpra_runner_shell_script(xpra_file, starting_dir))
scriptfile.close()
# Do this after writing out the shell script:
os.environ["DISPLAY"] = display_name
if not clobber:
# We need to set up a new server environment
xauthority = os.environ.get("XAUTHORITY",
os.path.expanduser("~/.Xauthority"))
xvfb_cmd = opts.xvfb.replace("$XAUTHORITY", xauthority).split()
xvfb_executable = xvfb_cmd[0]
xvfb_cmd[0] = "%s-for-Xpra-%s" % (xvfb_executable, display_name)
try:
xvfb = subprocess.Popen(xvfb_cmd+[display_name],
executable=xvfb_executable)
except OSError, e:
sys.stderr.write("Error starting Xvfb: %s\n" % (e,))
return
raw_cookie = os.urandom(16)
baked_cookie = raw_cookie.encode("hex")
try:
code = subprocess.call(["xauth", "add", display_name,
"MIT-MAGIC-COOKIE-1", baked_cookie])
if code != 0:
raise OSError("non-zero exit code: %s" % code)
except OSError, e:
sys.stderr.write("Error running xauth: %s\n" % e)
