沙盒

#!/usr/bin/python
#
# Copyright (c) Dropbox, Inc.
#
# dropbox
# Dropbox frontend script
# This file is part of nautilus-dropbox 1.6.0.
#
# nautilus-dropbox is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# nautilus-dropbox is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with nautilus-dropbox.  If not, see <http://www.gnu.org/licenses/>.
#
from __future__ import with_statement
 
import errno
import locale
import optparse
import os
import platform
import shutil
import socket
import StringIO
import subprocess
import sys
import tarfile
import tempfile
import threading
import thread
import time
import traceback
import urllib2
 
try:
    import gpgme
except ImportError:
    gpgme = None
 
from contextlib import closing, contextmanager
from posixpath import curdir, sep, pardir, join, abspath, commonprefix
 
INFO = u"Dropbox is the easiest way to share and store your files online. Want to learn more? Head to"
LINK = u"https://www.dropbox.com/"
WARNING = u"In order to use Dropbox, you must download the proprietary daemon."
GPG_WARNING = u"Note: python-gpgme is not installed, we will not be able to verify binary signatures."
ERROR_CONNECTING = u"Trouble connecting to Dropbox servers. Maybe your internet connection is down, or you need to set your http_proxy environment variable."
ERROR_SIGNATURE = u"Downloaded binary does not match Dropbox signature, aborting install."
 
DOWNLOAD_LOCATION_FMT = "https://www.dropbox.com/download?plat=%s"
SIGNATURE_LOCATION_FMT = "https://www.dropbox.com/download?plat=%s&signature=1"
 
DOWNLOADING = u"Downloading Dropbox... %d%%"
UNPACKING = u"Unpacking Dropbox... %d%%"
 
PARENT_DIR = os.path.expanduser("~")
DROPBOXD_PATH = "%s/.dropbox-dist/dropboxd" % PARENT_DIR
DESKTOP_FILE = u"/usr/share/applications/dropbox.desktop"
 
enc = locale.getpreferredencoding()
 
# Available from https://linux.dropbox.com/fedora/rpm-public-key.asc
DROPBOX_PUBLIC_KEY = """
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: SKS 1.1.0
 
mQENBEt0ibEBCACv4hZRPqwtpU6z8+BB5YZU1a3yjEvg2W68+a6hEwxtCa2U++4dzQ+7EqaU
q5ybQnwtbDdpFpsOi9x31J+PCpufPUfIG694/0rlEpmzl2GWzY8NqfdBFGGm/SPSSwvKbeNc
FMRLu5neo7W9kwvfMbGjHmvUbzBUVpCVKD0OEEf1q/Ii0Qcekx9CMoLvWq7ZwNHEbNnij7ec
nvwNlE2MxNsOSJj+hwZGK+tM19kuYGSKw4b5mR8IyThlgiSLIfpSBh1n2KX+TDdk9GR+57TY
vlRu6nTPu98P05IlrrCP+KF0hYZYOaMvQs9Rmc09tc/eoQlN0kkaBWw9Rv/dvLVc0aUXABEB
AAG0MURyb3Bib3ggQXV0b21hdGljIFNpZ25pbmcgS2V5IDxsaW51eEBkcm9wYm94LmNvbT6J
ATYEEwECACAFAkt0ibECGwMGCwkIBwMCBBUCCAMEFgIDAQIeAQIXgAAKCRD8kYszUESRLi/z
B/wMscEa15rS+0mIpsORknD7kawKwyda+LHdtZc0hD/73QGFINR2P23UTol/R4nyAFEuYNsF
0C4IAD6y4pL49eZ72IktPrr4H27Q9eXhNZfJhD7BvQMBx75L0F5gSQwuC7GdYNlwSlCD0AAh
Qbi70VBwzeIgITBkMQcJIhLvllYo/AKD7Gv9huy4RLaIoSeofp+2Q0zUHNPl/7zymOqu+5Ox
e1ltuJT/kd/8hU+N5WNxJTSaOK0sF1/wWFM6rWd6XQUP03VyNosAevX5tBo++iD1WY2/lFVU
JkvAvge2WFk3c6tAwZT/tKxspFy4M/tNbDKeyvr685XKJw9ei6GcOGHD
=5rWG
-----END PGP PUBLIC KEY BLOCK-----
"""
 
# Futures
 
def methodcaller(name, *args, **kwargs):
    def caller(obj):
        return getattr(obj, name)(*args, **kwargs)
    return caller
 
def relpath(path, start=curdir):
    """Return a relative version of a path"""
 
    if not path:
        raise ValueError("no path specified")
 
    if type(start) is unicode:
        start_list = unicode_abspath(start).split(sep)
    else:
        start_list = abspath(start).split(sep)
 
    if type(path) is unicode:
        path_list = unicode_abspath(path).split(sep)
    else:
        path_list = abspath(path).split(sep)
 
    # Work out how much of the filepath is shared by start and path.
    i = len(commonprefix([start_list, path_list]))
 
    rel_list = [pardir] * (len(start_list)-i) + path_list[i:]
    if not rel_list:
        return curdir
    return join(*rel_list)
 
# End Futures
 
 
def console_print(st=u"", f=sys.stdout, linebreak=True):
    global enc
    assert type(st) is unicode
    f.write(st.encode(enc))
    if linebreak: f.write(os.linesep)
 
def console_flush(f=sys.stdout):
    f.flush()
 
def yes_no_question(question):
    while True:
        console_print(question, linebreak=False)
        console_print(u" [y/n] ", linebreak=False)
        console_flush()
        text = raw_input()
        if text.lower().startswith("y"):
            return True
        elif text.lower().startswith("n"):
            return False
        else:
            console_print(u"Sorry, I didn't understand that. Please type yes or no.")
 
def plat():
    if sys.platform.lower().startswith('linux'):
        arch = platform.machine()
        if (arch[0] == 'i' and
            arch[1].isdigit() and
            arch[2:4] == '86'):
            plat = "x86"
        elif arch == 'x86_64':
            plat = arch
        else:
            FatalVisibleError("Platform not supported")
        return "lnx.%s" % plat
    else:
        FatalVisibleError("Platform not supported")
 
def is_dropbox_running():
    pidfile = os.path.expanduser("~/.dropbox/dropbox.pid")
 
    try:
        with open(pidfile, "r") as f:
            pid = int(f.read())
        with open("/proc/%d/cmdline" % pid, "r") as f:
            cmdline = f.read().lower()
    except:
        cmdline = ""
 
    return "dropbox" in cmdline
 
def unicode_abspath(path):
    global enc
    assert type(path) is unicode
    # shouldn't pass unicode to this craphead, it appends with os.getcwd() which is always a str
    return os.path.abspath(path.encode(sys.getfilesystemencoding())).decode(sys.getfilesystemencoding())