78 lines
2.8 KiB
Python
78 lines
2.8 KiB
Python
#!/usr/bin/python2
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#
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# The Qubes OS Project, http://www.qubes-os.org
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#
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# Copyright (C) 2016 Jean-Philippe Ouellet <jpo@vt.edu>
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# Copyright (C) 2012 Agnieszka Kostrzewa <agnieszka.kostrzewa@gmail.com>
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# Copyright (C) 2012 Marek Marczykowski <marmarek@mimuw.edu.pl>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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#
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import os
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import fcntl
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from math import log
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from qubes.qubes import QubesException
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from PyQt4.QtGui import QApplication
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APPVIEWER_LOCK = "/var/run/qubes/appviewer.lock"
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CLIPBOARD_CONTENTS = "/var/run/qubes/qubes-clipboard.bin"
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CLIPBOARD_SOURCE = CLIPBOARD_CONTENTS + ".source"
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def do_dom0_copy():
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copy_text_to_qubes_clipboard(QApplication.clipboard().text())
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def copy_text_to_qubes_clipboard(text):
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#inter-appviewer lock
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try:
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fd = os.open(APPVIEWER_LOCK, os.O_RDWR|os.O_CREAT, 0666)
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except:
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QMessageBox.warning(None, "Warning!", "Error while accessing Qubes clipboard!")
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else:
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try:
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fcntl.flock(fd, fcntl.LOCK_EX)
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except:
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QMessageBox.warning(None, "Warning!", "Error while locking Qubes clipboard!")
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else:
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try:
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with open(CLIPBOARD_CONTENTS, "w") as contents:
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contents.write(text)
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with open(CLIPBOARD_SOURCE, "w") as source:
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source.write("dom0")
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except:
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QMessageBox.warning(None, "Warning!", "Error while writing to Qubes clipboard!")
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fcntl.flock(fd, fcntl.LOCK_UN)
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os.close(fd)
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def get_qubes_clipboard_formatted_size():
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units = ['B', 'KiB', 'MiB', 'GiB']
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try:
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file_size = os.path.getsize(CLIPBOARD_CONTENTS)
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except:
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QMessageBox.warning(None, "Warning!", "Error while accessing Qubes clipboard!")
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else:
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formatted_bytes = '1 byte' if file_size == 1 else str(file_size) + ' bytes'
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if file_size > 0:
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magnitude = min(int(log(file_size)/log(2)*0.1), len(units)-1)
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if magnitude > 0:
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return '%s (%.1f %s)' % (formatted_bytes, file_size/(2.0**(10*magnitude)), units[magnitude])
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return '%s' % (formatted_bytes)
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return '? bytes'
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