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437 lines
13 KiB
437 lines
13 KiB
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2019 Chris Caron <lead2gold@gmail.com>
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# All rights reserved.
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#
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# This code is licensed under the MIT License.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files(the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions :
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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from __future__ import absolute_import
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from __future__ import print_function
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from .NotifyBase import NotifyBase
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from ..common import NotifyImageSize
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from ..common import NotifyType
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from ..utils import GET_SCHEMA_RE
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from ..utils import parse_bool
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from ..AppriseLocale import gettext_lazy as _
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# Default our global support flag
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NOTIFY_DBUS_SUPPORT_ENABLED = False
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# Image support is dependant on the GdkPixbuf library being available
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NOTIFY_DBUS_IMAGE_SUPPORT = False
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# The following are required to hook into the notifications:
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NOTIFY_DBUS_INTERFACE = 'org.freedesktop.Notifications'
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NOTIFY_DBUS_SETTING_LOCATION = '/org/freedesktop/Notifications'
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# Initialize our mainloops
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LOOP_GLIB = None
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LOOP_QT = None
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try:
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# dbus essentials
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from dbus import SessionBus
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from dbus import Interface
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from dbus import Byte
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from dbus import ByteArray
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#
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# now we try to determine which mainloop(s) we can access
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#
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# glib
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try:
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from dbus.mainloop.glib import DBusGMainLoop
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LOOP_GLIB = DBusGMainLoop()
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except ImportError:
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# No problem
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pass
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# qt
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try:
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from dbus.mainloop.qt import DBusQtMainLoop
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LOOP_QT = DBusQtMainLoop(set_as_default=True)
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except ImportError:
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# No problem
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pass
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# We're good as long as at least one
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NOTIFY_DBUS_SUPPORT_ENABLED = (
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LOOP_GLIB is not None or LOOP_QT is not None)
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try:
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# The following is required for Image/Icon loading only
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import gi
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gi.require_version('GdkPixbuf', '2.0')
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from gi.repository import GdkPixbuf
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NOTIFY_DBUS_IMAGE_SUPPORT = True
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except (ImportError, ValueError):
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# No problem; this will get caught in outer try/catch
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# A ValueError will get thrown upon calling gi.require_version() if
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# GDK/GTK isn't installed on the system but gi is.
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pass
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except ImportError:
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# No problem; we just simply can't support this plugin; we could
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# be in microsoft windows, or we just don't have the python-gobject
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# library available to us (or maybe one we don't support)?
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pass
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# Define our supported protocols and the loop to assign them.
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# The key to value pairs are the actual supported schema's matched
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# up with the Main Loop they should reference when accessed.
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MAINLOOP_MAP = {
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'qt': LOOP_QT,
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'kde': LOOP_QT,
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'glib': LOOP_GLIB,
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'dbus': LOOP_QT if LOOP_QT else LOOP_GLIB,
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}
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# Urgencies
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class DBusUrgency(object):
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LOW = 0
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NORMAL = 1
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HIGH = 2
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# Define our urgency levels
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DBUS_URGENCIES = (
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DBusUrgency.LOW,
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DBusUrgency.NORMAL,
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DBusUrgency.HIGH,
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)
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class NotifyDBus(NotifyBase):
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"""
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A wrapper for local DBus/Qt Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'DBus Notification'
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# The default protocols
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# Python 3 keys() does not return a list object, it's it's own dict_keys()
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# object if we were to reference, we wouldn't be backwards compatible with
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# Python v2. So converting the result set back into a list makes us
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# compatible
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protocol = list(MAINLOOP_MAP.keys())
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# A URL that takes you to the setup/help of the specific protocol
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setup_url = 'https://github.com/caronc/apprise/wiki/Notify_dbus'
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# No throttling required for DBus queries
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request_rate_per_sec = 0
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# Allows the user to specify the NotifyImageSize object
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image_size = NotifyImageSize.XY_128
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# The number of seconds to keep the message present for
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message_timeout_ms = 13000
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# Limit results to just the first 10 line otherwise there is just to much
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# content to display
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body_max_line_count = 10
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# A title can not be used for SMS Messages. Setting this to zero will
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# cause any title (if defined) to get placed into the message body.
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title_maxlen = 0
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# This entry is a bit hacky, but it allows us to unit-test this library
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# in an environment that simply doesn't have the gnome packages
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# available to us. It also allows us to handle situations where the
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# packages actually are present but we need to test that they aren't.
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# If anyone is seeing this had knows a better way of testing this
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# outside of what is defined in test/test_glib_plugin.py, please
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# let me know! :)
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_enabled = NOTIFY_DBUS_SUPPORT_ENABLED
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# Define object templates
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templates = (
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'{schema}://_/',
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)
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# Define our template arguments
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template_args = dict(NotifyBase.template_args, **{
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'urgency': {
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'name': _('Urgency'),
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'type': 'choice:int',
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'values': DBUS_URGENCIES,
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'default': DBusUrgency.NORMAL,
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},
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'x': {
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'name': _('X-Axis'),
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'type': 'int',
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'min': 0,
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'map_to': 'x_axis',
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},
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'y': {
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'name': _('Y-Axis'),
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'type': 'int',
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'min': 0,
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'map_to': 'y_axis',
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},
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'image': {
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'name': _('Include Image'),
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'type': 'bool',
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'default': True,
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'map_to': 'include_image',
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},
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})
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def __init__(self, urgency=None, x_axis=None, y_axis=None,
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include_image=True, **kwargs):
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"""
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Initialize DBus Object
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"""
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super(NotifyDBus, self).__init__(**kwargs)
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# Track our notifications
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self.registry = {}
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# Store our schema; default to dbus
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self.schema = kwargs.get('schema', 'dbus')
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if self.schema not in MAINLOOP_MAP:
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msg = 'The schema specified ({}) is not supported.' \
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.format(self.schema)
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self.logger.warning(msg)
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raise TypeError(msg)
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# The urgency of the message
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if urgency not in DBUS_URGENCIES:
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self.urgency = DBusUrgency.NORMAL
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else:
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self.urgency = urgency
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# Our x/y axis settings
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self.x_axis = x_axis if isinstance(x_axis, int) else None
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self.y_axis = y_axis if isinstance(y_axis, int) else None
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# Track whether or not we want to send an image with our notification
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# or not.
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self.include_image = include_image
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def send(self, body, title='', notify_type=NotifyType.INFO, **kwargs):
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"""
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Perform DBus Notification
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"""
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if not self._enabled or MAINLOOP_MAP[self.schema] is None:
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self.logger.warning(
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"{} notifications could not be loaded.".format(self.schema))
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return False
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# Acquire our session
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session = SessionBus(mainloop=MAINLOOP_MAP[self.schema])
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# acquire our dbus object
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dbus_obj = session.get_object(
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NOTIFY_DBUS_INTERFACE,
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NOTIFY_DBUS_SETTING_LOCATION,
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)
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# Acquire our dbus interface
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dbus_iface = Interface(
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dbus_obj,
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dbus_interface=NOTIFY_DBUS_INTERFACE,
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)
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# image path
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icon_path = None if not self.include_image \
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else self.image_path(notify_type, extension='.ico')
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# Our meta payload
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meta_payload = {
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"urgency": Byte(self.urgency)
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}
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if not (self.x_axis is None and self.y_axis is None):
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# Set x/y access if these were set
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meta_payload['x'] = self.x_axis
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meta_payload['y'] = self.y_axis
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if NOTIFY_DBUS_IMAGE_SUPPORT and icon_path:
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try:
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# Use Pixbuf to create the proper image type
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image = GdkPixbuf.Pixbuf.new_from_file(icon_path)
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# Associate our image to our notification
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meta_payload['icon_data'] = (
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image.get_width(),
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image.get_height(),
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image.get_rowstride(),
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image.get_has_alpha(),
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image.get_bits_per_sample(),
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image.get_n_channels(),
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ByteArray(image.get_pixels())
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)
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except Exception as e:
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self.logger.warning(
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"Could not load Gnome notification icon ({}): {}"
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.format(icon_path, e))
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try:
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# Always call throttle() before any remote execution is made
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self.throttle()
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dbus_iface.Notify(
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# Application Identifier
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self.app_id,
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# Message ID (0 = New Message)
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0,
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# Icon (str) - not used
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'',
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# Title
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str(title),
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# Body
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str(body),
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# Actions
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list(),
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# Meta
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meta_payload,
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# Message Timeout
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self.message_timeout_ms,
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)
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self.logger.info('Sent DBus notification.')
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except Exception:
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self.logger.warning('Failed to send DBus notification.')
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self.logger.exception('DBus Exception')
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return False
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return True
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def url(self):
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"""
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Returns the URL built dynamically based on specified arguments.
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"""
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_map = {
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DBusUrgency.LOW: 'low',
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DBusUrgency.NORMAL: 'normal',
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DBusUrgency.HIGH: 'high',
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}
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# Define any arguments set
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args = {
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'format': self.notify_format,
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'overflow': self.overflow_mode,
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'image': 'yes' if self.include_image else 'no',
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'urgency': 'normal' if self.urgency not in _map
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else _map[self.urgency],
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'verify': 'yes' if self.verify_certificate else 'no',
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}
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# x in (x,y) screen coordinates
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if self.x_axis:
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args['x'] = str(self.x_axis)
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# y in (x,y) screen coordinates
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if self.y_axis:
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args['y'] = str(self.y_axis)
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return '{schema}://_/?{args}'.format(
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schema=self.protocol,
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args=NotifyDBus.urlencode(args),
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)
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@staticmethod
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def parse_url(url):
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"""
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There are no parameters nessisary for this protocol; simply having
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gnome:// is all you need. This function just makes sure that
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is in place.
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"""
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schema = GET_SCHEMA_RE.match(url)
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if schema is None:
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# Content is simply not parseable
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return None
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results = NotifyBase.parse_url(url)
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if not results:
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results = {
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'schema': schema.group('schema').lower(),
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'user': None,
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'password': None,
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'port': None,
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'host': '_',
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'fullpath': None,
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'path': None,
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'url': url,
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'qsd': {},
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}
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# Include images with our message
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results['include_image'] = \
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parse_bool(results['qsd'].get('image', True))
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# DBus supports urgency, but we we also support the keyword priority
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# so that it is consistent with some of the other plugins
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urgency = results['qsd'].get('urgency', results['qsd'].get('priority'))
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if urgency and len(urgency):
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_map = {
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'0': DBusUrgency.LOW,
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'l': DBusUrgency.LOW,
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'n': DBusUrgency.NORMAL,
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'1': DBusUrgency.NORMAL,
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'h': DBusUrgency.HIGH,
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'2': DBusUrgency.HIGH,
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}
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try:
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# Attempt to index/retrieve our urgency
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results['urgency'] = _map[urgency[0].lower()]
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except KeyError:
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# No priority was set
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pass
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# handle x,y coordinates
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try:
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results['x_axis'] = int(results['qsd'].get('x'))
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except (TypeError, ValueError):
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# No x was set
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pass
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try:
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results['y_axis'] = int(results['qsd'].get('y'))
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except (TypeError, ValueError):
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# No y was set
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pass
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return results
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