def is_needed(cls, caps: typedict) -> bool:
#pre 2.3 clients;
if caps.strget("mmap_file"):
return True
v = caps.rawget("mmap")
#we should be receiving a dict with mmap attributes
#(but pre v4 clients also send a boolean telling us if mmap is supported by the platform..)
return isinstance(v, dict)
def parse_server_capabilities(self, c : typedict) -> bool:
self._remote_machine_id = c.strget("machine_id")
self._remote_uuid = c.strget("uuid")
self._remote_version = c.strget("build.version", c.strget("version"))
self._remote_revision = c.strget("build.revision", c.strget("revision"))
mods = c.rawget("build.local_modifications")
if mods and str(mods).find("dfsg")>=0: # pragma: no cover
get_util_logger().warn("Warning: the xpra server is running a buggy Debian version")
get_util_logger().warn(" those are usually out of date and unstable")
else:
self._remote_modifications = c.intget("build.local_modifications", 0)
self._remote_commit = c.strget("build.commit")
self._remote_build_date = c.strget("build.date")
self._remote_build_time = c.strget("build.time")
self._remote_hostname = c.strget("hostname")
self._remote_display = c.strget("display")
self._remote_platform = c.strget("platform")
self._remote_platform_release = c.strget("platform.release")
self._remote_platform_platform = c.strget("platform.platform")
self._remote_python_version = c.strget("python.version")
self._remote_subcommands = c.strtupleget("subcommands")
self._remote_server_log = c.strget("server-log")
for x in ("glib", "gobject", "gtk", "gdk", "cairo", "pango", "sound.gst", "sound.pygst"):
v = c.rawget("%s.version" % x, None)
if v is not None:
self._remote_lib_versions[x] = v
#linux distribution is a tuple of different types, ie: ('Linux Fedora' , 20, 'Heisenbug')
pld = c.tupleget("platform.linux_distribution")
if pld and len(pld)==3:
def san(v):
if isinstance(v, int):
return v
return bytestostr(v)
self._remote_platform_linux_distribution = [san(x) for x in pld]
verr = version_compat_check(self._remote_version)
if verr is not None:
self.warn_and_quit(EXIT_INCOMPATIBLE_VERSION,
"incompatible remote version '%s': %s" % (self._remote_version, verr))
return False
return True
def parse_server_capabilities(self, c: typedict) -> bool:
for cb in CLIENT_BASES:
if not cb.parse_server_capabilities(self, c):
log.info("failed to parse server capabilities in %s", cb)
return False
self.server_session_name = strtobytes(c.rawget("session_name",
b"")).decode("utf-8")
set_name("Xpra", self.session_name or self.server_session_name
or "Xpra")
self.server_platform = c.strget("platform")
self.server_sharing = c.boolget("sharing")
self.server_sharing_toggle = c.boolget("sharing-toggle")
self.server_lock = c.boolget("lock")
self.server_lock_toggle = c.boolget("lock-toggle")
self.server_keyboard = c.boolget("keyboard", True)
self.server_pointer = c.boolget("pointer", True)
self.server_start_new_commands = c.boolget("start-new-commands")
if self.server_start_new_commands:
self.server_xdg_menu = c.dictget("xdg-menu", None)
if self.start_new_commands or self.start_child_new_commands:
if self.server_start_new_commands:
self.after_handshake(self.send_start_new_commands)
else:
log.warn("Warning: cannot start new commands")
log.warn(" the feature is currently disabled on the server")
self.server_commands_info = c.boolget("server-commands-info")
self.server_commands_signals = c.strtupleget("server-commands-signals")
self.server_readonly = c.boolget("readonly")
if self.server_readonly and not self.readonly:
log.info("server is read only")
self.readonly = True
if not self.server_keyboard and self.keyboard_helper:
#swallow packets:
def nosend(*_args):
pass
self.keyboard_helper.send = nosend
i = platform_name(
self._remote_platform,
c.strtupleget("platform.linux_distribution")
or c.strget("platform.release", ""))
r = self._remote_version
if self._remote_revision:
r += "-r%s" % self._remote_revision
mode = c.strget("server.mode", "server")
bits = c.intget("python.bits", 32)
log.info("Xpra %s server version %s %i-bit", mode, std(r), bits)
if i:
log.info(" running on %s", std(i))
if c.boolget("desktop") or c.boolget("shadow"):
v = c.intpair("actual_desktop_size")
if v:
w, h = v
ss = c.tupleget("screen_sizes")
if ss:
log.info(" remote desktop size is %sx%s with %s screen%s:",
w, h, len(ss), engs(ss))
log_screen_sizes(w, h, ss)
else:
log.info(" remote desktop size is %sx%s", w, h)
if c.boolget("proxy"):
proxy_hostname = c.strget("proxy.hostname")
proxy_platform = c.strget("proxy.platform")
proxy_release = c.strget("proxy.platform.release")
proxy_version = c.strget("proxy.version")
proxy_version = c.strget("proxy.build.version", proxy_version)
proxy_distro = c.strget("proxy.linux_distribution")
msg = "via: %s proxy version %s" % (platform_name(
proxy_platform, proxy_distro
or proxy_release), std(proxy_version or "unknown"))
if proxy_hostname:
msg += " on '%s'" % std(proxy_hostname)
log.info(msg)
return True