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paths.py
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paths.py
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#!/usr/bin/env python3
# This file is part of Xpra.
# Copyright (C) 2010 Nathaniel Smith <njs@pobox.com>
# Copyright (C) 2011-2019 Antoine Martin <antoine@xpra.org>
# Xpra is released under the terms of the GNU GPL v2, or, at your option, any
# later version. See the file COPYING for details.
import inspect
import os.path
import sys
from xpra.platform import platform_import
def valid_dir(path):
try:
return bool(path) and os.path.exists(path) and os.path.isdir(path)
except TypeError:
return False
#helpers to easily override using env vars:
def envaslist_or_delegate(env_name, impl, *args):
env_value = os.environ.get(env_name)
if env_value is not None:
return [env_value]
return impl(*args)
def env_or_delegate(env_name, impl, *args):
env_value = os.environ.get(env_name)
if env_value is not None:
return env_value
return impl(*args)
def get_install_prefix():
return env_or_delegate("XPRA_INSTALL_PREFIX", do_get_install_prefix)
def do_get_install_prefix():
return sys.prefix
def get_system_conf_dirs():
return envaslist_or_delegate("XPRA_SYSTEM_CONF_DIRS", do_get_system_conf_dirs)
def do_get_system_conf_dirs():
#overriden in all platforms
return []
def get_ssl_cert_dirs():
return envaslist_or_delegate("XPRA_SSL_CERT_PATHS", do_get_ssl_cert_dirs)
def do_get_ssl_cert_dirs():
dirs = ["/etc/xpra/", "/etc/xpra/ssl", "/usr/local/etc/xpra", "/usr/local/etc/xpra/ssl"]
if os.name!="posix" or os.getuid()!=0:
dirs = ["~/.config/xpra/ssl", "~/.xpra/ssl"] + dirs + ["./"]
return dirs
def get_ssl_hosts_config_dirs():
return envaslist_or_delegate("XPRA_SSL_HOSTS_CONFIG_DIRS", do_get_ssl_hosts_config_dirs)
def do_get_ssl_hosts_config_dirs():
dirs = []
for d in get_ssl_cert_dirs():
if d.rstrip("/\\").endswith("ssl"):
dirs.append(os.path.join(d, "hosts"))
return dirs
def get_ssh_conf_dirs():
return envaslist_or_delegate("XPRA_SSH_CONF_DIRS", do_get_ssh_conf_dirs)
def do_get_ssh_conf_dirs():
return ["/etc/ssh", "/usr/local/etc/ssh", "~/.ssh", "~/ssh"]
def get_ssh_known_hosts_files():
return envaslist_or_delegate("XPRA_SSH_KNOWN_HOSTS", do_get_ssh_known_hosts_files)
def do_get_ssh_known_hosts_files():
return ("~/.ssh/known_hosts", "~/ssh/known_hosts")
def get_user_conf_dirs(uid=None):
return envaslist_or_delegate("XPRA_USER_CONF_DIRS", do_get_user_conf_dirs, uid)
def do_get_user_conf_dirs(_uid):
return []
def get_default_conf_dirs():
return envaslist_or_delegate("XPRA_DEFAULT_CONF_DIRS", do_get_default_conf_dirs)
def do_get_default_conf_dirs():
#some platforms may also ship a default config with the application
return []
def get_sessions_dir():
return envaslist_or_delegate("XPRA_SESSIONS_DIRS", do_get_sessions_dir)
def do_get_sessions_dir():
return "$XDG_RUNTIME_DIR/xpra"
def get_socket_dirs():
return envaslist_or_delegate("XPRA_SOCKET_DIRS", do_get_socket_dirs)
def do_get_socket_dirs():
return ["~/.xpra"]
def get_client_socket_dirs():
return envaslist_or_delegate("XPRA_CLIENT_SOCKET_DIRS", do_get_client_socket_dirs)
def do_get_client_socket_dirs():
return []
def get_default_log_dirs():
return envaslist_or_delegate("XPRA_LOG_DIRS", do_get_default_log_dirs)
def do_get_default_log_dirs():
return ["~/.xpra"]
def get_download_dir():
return env_or_delegate("XPRA_DOWNLOAD_DIR", do_get_download_dir)
def do_get_download_dir():
d = "~/Downloads"
if not os.path.exists(os.path.expanduser(d)):
return "~"
return d
def get_mmap_dir():
return env_or_delegate("XPRA_MMAP_DIR", do_get_mmap_dir)
def do_get_mmap_dir():
import tempfile
return tempfile.gettempdir()
def get_xpra_tmp_dir():
return env_or_delegate("XPRA_TMP_DIR", do_get_xpra_tmp_dir)
def do_get_xpra_tmp_dir():
import tempfile
return tempfile.gettempdir()
def get_script_bin_dirs():
return envaslist_or_delegate("XPRA_SCRIPT_BIN_DIRS", do_get_script_bin_dirs)
def do_get_script_bin_dirs():
return ["~/.xpra"]
def get_remote_run_xpra_scripts():
return envaslist_or_delegate("XPRA_REMOTE_RUN_XPRA_SCRIPTS", do_get_remote_run_xpra_scripts)
def do_get_remote_run_xpra_scripts():
return ["xpra", "$XDG_RUNTIME_DIR/xpra/run-xpra", "/usr/local/bin/xpra", "~/.xpra/run-xpra", "Xpra_cmd.exe"]
def get_sshpass_command():
return env_or_delegate("XPRA_SSHPASS", do_get_sshpass_command)
def do_get_sshpass_command():
def is_exe(fpath):
return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
SSHPASS = "sshpass"
from xpra.platform.features import EXECUTABLE_EXTENSION
if EXECUTABLE_EXTENSION:
SSHPASS = "sshpass.%s" % EXECUTABLE_EXTENSION
paths = os.environ["PATH"].split(os.pathsep)
for path in paths:
path = path.strip('"')
exe_file = os.path.join(path, SSHPASS)
if is_exe(exe_file):
return exe_file
return None
#overriden in platform code:
def get_app_dir():
return env_or_delegate("XPRA_APP_DIR", do_get_app_dir)
def do_get_app_dir():
return default_get_app_dir()
def default_get_app_dir():
if os.name=="posix":
for prefix in (
os.environ.get("RPM_BUILD_ROOT"),
get_install_prefix(),
sys.exec_prefix,
"/usr",
"/usr/local",
):
if not prefix:
continue
adir = os.path.join(prefix, "share", "xpra")
if valid_dir(adir):
return adir
adir = os.path.dirname(inspect.getfile(sys._getframe(1))) #pylint: disable=protected-access
def root_module(d):
for psep in (os.path.sep, "/", "\\"):
pos = d.find("xpra%splatform" % psep)
if pos>=0:
return d[:pos]
return d
if valid_dir(adir):
return root_module(adir)
adir = os.path.dirname(sys.argv[0])
if valid_dir(adir):
return root_module(adir)
adir = os.getcwd()
return adir #tried our best, hope this works!
#may be overriden in platform code:
def get_resources_dir():
return env_or_delegate("XPRA_RESOURCES_DIR", do_get_resources_dir)
def do_get_resources_dir():
return get_app_dir()
#may be overriden in platform code:
def get_icon_dir():
return env_or_delegate("XPRA_ICON_DIR", do_get_icon_dir)
def do_get_icon_dir():
adir = get_app_dir()
idir = os.path.join(adir, "icons")
if valid_dir(idir):
return idir
for prefix in (sys.exec_prefix, "/usr", "/usr/local"):
idir = os.path.join(prefix, "icons")
if os.path.exists(idir):
return idir
return adir #better than nothing :(
def get_icon(name):
filename = get_icon_filename(name)
if not filename:
return None
from xpra.gtk_common.gtk_util import get_icon_from_file
return get_icon_from_file(filename)
def get_icon_filename(basename=None, ext="png"):
if not basename:
return None
filename = basename
fext = os.path.splitext(filename)[1]
if not fext:
filename = "%s.%s" % (basename, ext)
if not os.path.isabs(filename):
icon_dir = get_icon_dir()
filename = os.path.join(icon_dir, filename)
if not os.path.exists(filename):
return None
return os.path.abspath(filename)
def get_desktop_background_paths():
return envaslist_or_delegate("XPRA_DESKTOP_BACKGROUND_PATHS", do_get_desktop_background_paths)
def do_get_desktop_background_paths():
return []
def get_xpra_command():
envvalue = os.environ.get("XPRA_COMMAND")
if envvalue:
import shlex
return shlex.split(envvalue)
return do_get_xpra_command()
def do_get_xpra_command():
return default_do_get_xpra_command()
def default_do_get_xpra_command():
#try to use the same "xpra" executable that launched this server:
if sys.argv and sys.argv[0].lower().endswith("/xpra"):
return [sys.argv[0]]
return ["xpra"]
def get_nodock_command():
envvalue = os.environ.get("XPRA_NODOCK_COMMAND")
if envvalue:
import shlex
return shlex.split(envvalue)
return do_get_nodock_command()
def do_get_nodock_command():
return get_xpra_command()
def get_sound_command():
envvalue = os.environ.get("XPRA_SOUND_COMMAND")
if envvalue:
import shlex
return shlex.split(envvalue)
return do_get_sound_command()
def do_get_sound_command():
return get_xpra_command()
def get_python_exec_command():
envvalue = os.environ.get("XPRA_PYTHON_EXEC_COMMAND") or os.environ.get("XPRA_PYTHON_COMMAND")
if envvalue:
import shlex
return shlex.split(envvalue)
return do_get_python_exec_command()
def do_get_python_exec_command():
return ["python%i.%i" % (sys.version_info.major, sys.version_info.minor), "-c"]
def get_python_execfile_command():
envvalue = os.environ.get("XPRA_PYTHON_EXECFILE_COMMAND") or os.environ.get("XPRA_PYTHON_COMMAND")
if envvalue:
import shlex
return shlex.split(envvalue)
return do_get_python_execfile_command()
def do_get_python_execfile_command():
return ["python%i.%i" % (sys.version_info.major, sys.version_info.minor)]
platform_import(globals(), "paths", True,
"do_get_resources_dir",
"do_get_app_dir",
"do_get_icon_dir")
platform_import(globals(), "paths", False,
"do_get_sshpass_command",
"do_get_xpra_command",
"do_get_sound_command",
"do_get_nodock_command",
"do_get_install_prefix",
"do_get_default_conf_dirs",
"do_get_system_conf_dirs",
"do_get_ssl_cert_dirs",
"do_get_ssl_hosts_config_dirs",
"do_get_ssh_conf_dirs",
"do_get_ssh_known_hosts_files",
"do_get_user_conf_dirs",
"do_get_sessions_dir",
"do_get_socket_dirs",
"do_get_client_socket_dirs",
"do_get_default_log_dirs",
"do_get_download_dir",
"do_get_libexec_dir",
"do_get_mmap_dir",
"do_get_xpra_tmp_dir",
"do_get_script_bin_dirs",
"do_get_desktop_background_paths",
"do_get_python_exec_command",
"do_get_python_execfile_command",
)
def get_info():
try:
import xpra
XPRA_MODULE_PATH = xpra.__file__
pos = XPRA_MODULE_PATH.find("__init__.py")
if pos>0:
XPRA_MODULE_PATH = XPRA_MODULE_PATH[:pos]
except AttributeError:
XPRA_MODULE_PATH = ""
return {
"install" : {"prefix" : get_install_prefix()},
"default_conf" : {"dirs" : get_default_conf_dirs()},
"system_conf" : {"dirs" : get_system_conf_dirs()},
"ssl-cert" : {"dirs" : get_ssl_cert_dirs()},
"ssl-hosts-config" : {"dirs" : get_ssl_hosts_config_dirs()},
"ssh_conf" : {"dirs" : get_ssh_conf_dirs()},
"user_conf" : {"dirs" : get_user_conf_dirs()},
"sessions" : {"dir" : do_get_sessions_dir()},
"socket" : {"dirs" : get_socket_dirs()},
"client-socket" : {"dirs" : get_client_socket_dirs()},
"log" : {"dirs" : get_default_log_dirs()},
"download" : {"dir" : get_download_dir()},
"libexec" : {"dir" : get_libexec_dir()},
"mmap" : {"dir" : get_mmap_dir()},
"xpra-tmp" : {"dir" : get_xpra_tmp_dir()},
"script" : {"dir" : get_script_bin_dirs()},
"xpra-module" : XPRA_MODULE_PATH,
"app" : {"default" : {"dir" : default_get_app_dir()}},
"desktop-background": get_desktop_background_paths(),
"ssh-known-hosts" : get_ssh_known_hosts_files(),
"resources" : get_resources_dir(),
"icons" : get_icon_dir(),
"home" : os.path.expanduser("~"),
"xpra_command" : get_xpra_command(),
"nodock_command" : get_nodock_command(),
"sound_command" : get_sound_command(),
"sshpass_command" : get_sshpass_command(),
"python-exec" : get_python_exec_command(),
"python-execfile" : get_python_execfile_command(),
}
def main():
if "-v" in sys.argv or "--verbose" in sys.argv:
from xpra.log import add_debug_category
add_debug_category("util")
from xpra.util import print_nested_dict
from xpra.platform import program_context
with program_context("Path-Info", "Path Info"):
print_nested_dict(get_info())
if __name__ == "__main__":
main()