def start_dbus(dbus_launch):
if not dbus_launch or dbus_launch.lower() in FALSE_OPTIONS:
return 0, {}
try:
def preexec():
assert POSIX
os.setsid()
close_fds()
proc = subprocess.Popen(dbus_launch,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
shell=True,
preexec_fn=preexec)
out, _ = proc.communicate()
assert proc.poll() == 0, "exit code is %s" % proc.poll()
#parse and add to global env:
dbus_env = {}
for l in out.splitlines():
parts = l.split("=", 1)
if len(parts) != 2:
continue
k, v = parts
if v.startswith("'") and v.endswith("';"):
v = v[1:-2]
dbus_env[k] = v
dbus_pid = int(dbus_env.get("DBUS_SESSION_BUS_PID", 0))
return dbus_pid, dbus_env
except Exception as e:
error("dbus-launch failed to start using command '%s':\n" %
dbus_launch)
error(" %s\n" % e)
return 0, {}
def save_dbus_env(env):
#DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-B8CDeWmam9,guid=b77f682bd8b57a5cc02f870556cbe9e9
#DBUS_SESSION_BUS_PID=11406
#DBUS_SESSION_BUS_WINDOWID=50331649
def u(s):
try:
return s.decode("latin1")
except:
return str(s)
for n, conv, save in (("ADDRESS", u, _save_str), ("PID", int, _save_int),
("WINDOW_ID", int, _save_int)):
k = "DBUS_SESSION_BUS_%s" % n
v = env.get(k)
if v is None:
continue
try:
tv = conv(v)
save(k, tv)
except Exception as e:
get_util_logger().debug("save_dbus_env(%s)", env, exc_info=True)
error(
"failed to save dbus environment variable '%s' with value '%s':\n"
% (k, v))
error(" %s\n" % e)
def get_dbus_env():
env = {}
for n, load in (("ADDRESS", _get_str), ("PID", _get_int), ("WINDOW_ID",
_get_int)):
k = "DBUS_SESSION_BUS_%s" % n
try:
v = load(k)
if v:
env[k] = str(v)
except Exception as e:
error("failed to load dbus environment variable '%s':\n" % k)
error(" %s\n" % e)
return env
def save_dbus_env(env):
#DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-B8CDeWmam9,guid=b77f682bd8b57a5cc02f870556cbe9e9
#DBUS_SESSION_BUS_PID=11406
#DBUS_SESSION_BUS_WINDOWID=50331649
for n, conv, save in (("ADDRESS", str, _save_str), ("PID", int, _save_int),
("WINDOW_ID", int, _save_int)):
k = "DBUS_SESSION_BUS_%s" % n
v = env.get(k)
if v is None:
continue
try:
tv = conv(v)
save(k, tv)
except Exception as e:
error(
"failed to save dbus environment variable '%s' with value '%s':\n"
% (k, v))
error(" %s\n" % e)
def command_error(message):
from xpra.scripts.main import error
error(message)
