893 lines
31 KiB
Python
893 lines
31 KiB
Python
#
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# Copyright (C) 2013 Red Hat, Inc.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions of
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# the GNU General Public License v.2, or (at your option) any later version.
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY expressed or implied, including the implied warranties of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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# Public License for more details. You should have received a copy of the
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# GNU General Public License along with this program; if not, write to the
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# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the
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# source code or documentation are not subject to the GNU General Public
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# License and may only be used or replicated with the express permission of
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# Red Hat, Inc.
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#
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# Red Hat Author(s): Martin Kolman <mkolman@redhat.com>
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#
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"""
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A GeoIP and WiFi location module - location detection based on IP address
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How to use the geolocation module
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First call init_geolocation() - this creates the LocationInfo singleton and
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you can also use it to set what geolocation provider should be used.
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To actually look up current position, call refresh() - this will trigger
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the actual online geolocation query, which runs in a thread.
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After the look-up thread finishes, the results are stored in the singleton
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and can be retrieved using the get_territory_code() and get_result() methods.
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If you call these methods without calling refresh() first or if the look-up
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is currently in progress, both return None.
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Geolocation backends
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This module currently supports three geolocation backends:
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* Fedora GeoIP API
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* Hostip GeoIP
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* Google WiFi
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Fedora GeoIP backend
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This is the default backend. It queries the Fedora GeoIP API for location
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data based on current public IP address. The reply is JSON formated and
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contains the following fields:
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postal_code, latitude, longitude, region, city, country_code, country_name,
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time_zone, country_code3, area_code, metro_code, region_name and dma_code
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Anaconda currently uses just time_zone and country_code.
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Hostip backend
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A GeoIP look-up backend that can be used to determine current country code
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from current public IP address. The public IP address is determined
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automatically when calling the API.
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GeoIP results from Hostip contain the current public IP and an approximate
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address. To get this detail location info, use the get_result() method
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to get an instance of the LocationResult class, used to wrap the result.
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Google WiFi backend
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This backend is probably the most accurate one, at least as long as the
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computer has a working WiFi hardware and there are some WiFi APs nearby.
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It sends data about nearby APs (ssid, MAC address & signal strength)
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acquired from Network Manager to a Google API to get approximate
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geographic coordinates. If there are enough AP nearby (such as in a
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normal city) it can be very accurate, even up to currently determining
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which building is the computer currently in.
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But this only returns current geographic coordinates, to get country code
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the Nominatim reverse-geocoding API is called to convert the coordinates
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to an address, which includes a country code.
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While having many advantages, this backend also has some severe disadvantages:
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* needs working WiFi hardware
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* tells your public IP address & possibly quite precise geographic coordinates
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to two external entities (Google and Nominatim)
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This could have severe privacy issues and should be carefully considered before
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enabling it to be used by default.
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* the Google WiFi geolocation API seems to lack official documentation
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As a result its long-term stability might not be guarantied.
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Possible issues with GeoIP
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"I'm in Switzerland connected to corporate VPN and anaconda tells me
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I'm in Netherlands."
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The public IP address is not directly mapped to the physical location
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of a computer. So while your world visible IP address is registered to
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an IP block assigned to an ISP in Netherlands, it is just the external
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address of the Internet gateway of your corporate network.
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As VPNs and proxies can connect two computers anywhere on Earth,
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this issue is unfortunately probably unsolvable.
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Backends that could possibly be used in the future
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* GPS geolocation
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+ doesn't leak your coordinates to a third party
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(not entirely true for assisted GPS)
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- unassisted cold GPS startup can take tens of minutes to acquire a GPS fix
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+ assisted GPS startup (as used in most smartphones) can acquire a fix
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in a couple seconds
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* cell tower geolocation
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"""
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import urllib
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import urllib2
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import json
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import dbus
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import threading
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import time
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from pyanaconda import network
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import logging
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log = logging.getLogger("anaconda")
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slog = logging.getLogger("sensitive-info")
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from pyanaconda import constants
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from pyanaconda.threads import AnacondaThread, threadMgr
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from pyanaconda.timezone import get_preferred_timezone, is_valid_timezone
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location_info_instance = None
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refresh_condition = threading.Condition()
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refresh_in_progress = False
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def init_geolocation(provider_id=constants.GEOLOC_DEFAULT_PROVIDER):
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"""Prepare the geolocation module for handling geolocation queries.
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This method sets-up the GeoLocation instance with the given
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geolocation_provider (or using the default one if no provider
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is given. Please note that calling this method doesn't actually
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execute any queries by itself, you need to call refresh()
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to do that.
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:param provider_id: specifies what geolocation backend to use
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"""
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global location_info_instance
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location_info_instance = LocationInfo(provider_id=provider_id)
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def refresh():
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"""Refresh information about current location using the currently specified
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geolocation provider.
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"""
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if location_info_instance:
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location_info_instance.refresh()
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else:
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log.debug("Geoloc: refresh() called before init_geolocation()")
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def get_territory_code(wait=False):
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"""This function returns the current country code
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or None, if:
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- no results were found
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- the lookup is still in progress
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- the geolocation module was not activated (init & refresh were not called)
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- this is for example the case during image and directory installs
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:param wait: wait for lookup in progress to finish
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False - don't wait
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True - wait for default period
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number - wait for up to number seconds
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:type wait: bool or number
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:return: current country code or None if not known
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:rtype: string or None
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"""
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if _get_location_info_instance(wait):
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return location_info_instance.get_territory_code()
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else:
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return None
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def get_timezone(wait=False):
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"""This function returns the current time zone
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or None, if:
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- no timezone was found
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- the lookup is still in progress
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- the geolocation module was not activated (init & refresh were not called)
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- this is for example the case during image and directory installs
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:param wait: wait for lookup in progress to finish
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False - don't wait
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True - wait for default period
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number - wait for up to number seconds
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:type wait: bool or number
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:return: current timezone or None if not known
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:rtype: string or None
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"""
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if _get_location_info_instance(wait):
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return location_info_instance.get_timezone()
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else:
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return None
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def get_result(wait=False):
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"""Returns the current geolocation result wrapper
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or None, if:
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- no results were found
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- the refresh is still in progress
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- the geolocation module was not activated (init & refresh were not called)
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- this is for example the case during image and directory installs
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:param wait: wait for lookup in progress to finish
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False - don't wait
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True - wait for default period
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number - wait for up to number seconds
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:type wait: bool or number
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:return: LocationResult instance or None if location is unknown
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:rtype: LocationResult or None
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"""
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if _get_location_info_instance(wait):
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return location_info_instance.get_result()
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else:
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return None
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def get_provider_id_from_option(option_string):
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"""Get a valid provider id from a string
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This function is used to parse command line
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arguments/boot options for the geolocation module.
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:param option_string: option specifying the provider
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:type option_string: string
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:return: provider id
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"""
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providers = {
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constants.GEOLOC_PROVIDER_FEDORA_GEOIP,
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constants.GEOLOC_PROVIDER_HOSTIP
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}
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if option_string in providers:
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return option_string
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else:
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# fall back to the default provider
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return None
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def _get_provider(provider_id):
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"""Return GeoIP provider instance based on the provider id
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If the provider id is unknown, return the default provider.
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:return: GeolocationBackend subclass instance
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:rtype: GeolocationBackend subclass
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"""
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providers = {
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constants.GEOLOC_PROVIDER_FEDORA_GEOIP: FedoraGeoIPProvider,
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constants.GEOLOC_PROVIDER_HOSTIP: HostipGeoIPProvider,
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constants.GEOLOC_PROVIDER_GOOGLE_WIFI: GoogleWiFiLocationProvider
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}
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# if unknown provider id is specified,
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# use the Fedora GeoIP provider
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default_provider = FedoraGeoIPProvider
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provider = providers.get(provider_id, default_provider)
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return provider()
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def _get_location_info_instance(wait=False):
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"""Return instance of the location info object
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and optionally wait for the Geolocation thread to finish
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If there is no lookup in progress (no Geolocation refresh thread
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is running), this function returns at once).
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Meaning of the wait parameter:
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- False or <=0: don't wait
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- True : wait for default number of seconds specified by
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the GEOLOC_TIMEOUT constant
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- >0 : wait for a given number of seconds
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:param wait: specifies if this function should wait
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for the lookup to finish before returning the instance
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:type wait: bool or integer or float
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"""
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if not wait:
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# just returns the instance
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return location_info_instance
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# check if wait is a boolean or a number
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if wait is True:
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# use the default waiting period
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wait = constants.GEOLOC_TIMEOUT
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# check if there is a refresh in progress
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start_time = time.time()
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refresh_condition.acquire()
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if refresh_in_progress:
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# calling wait releases the lock and blocks,
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# after the thread is notified, it unblocks and
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# reacquires the lock
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refresh_condition.wait(timeout=wait)
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if refresh_in_progress:
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log.info("Waiting for Geolocation timed out after %d seconds.", wait)
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# please note that this does not mean that the actual
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# geolocation lookup was stopped in any way, it just
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# means the caller was unblocked after the waiting period
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# ended while the lookup thread is still running
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else:
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elapsed_time = time.time() - start_time
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log.info("Waited %1.2f seconds for Geolocation", elapsed_time)
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refresh_condition.release()
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return location_info_instance
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class GeolocationError(Exception):
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"""Exception class for geolocation related errors"""
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pass
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class LocationInfo(object):
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"""Determines current location based on IP address or
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nearby WiFi access points (depending on what backend is used)
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"""
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def __init__(self,
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provider_id=constants.GEOLOC_DEFAULT_PROVIDER,
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refresh_now=False):
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"""
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:param provider_id: GeoIP provider id specified by module constant
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:param refresh_now: if a GeoIP information refresh should be done
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once the class is initialized
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:type refresh_now: bool
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"""
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self._provider = _get_provider(provider_id)
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if refresh_now:
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self.refresh()
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def refresh(self):
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"""Refresh location info"""
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# first check if a provider is available
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if self._provider is None:
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log.error("Geoloc: can't refresh - no provider")
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return
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# then check if a refresh is already in progress
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if threadMgr.get(constants.THREAD_GEOLOCATION_REFRESH):
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log.debug("Geoloc: refresh already in progress")
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else: # wait for Internet connectivity
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if network.wait_for_connectivity():
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threadMgr.add(AnacondaThread(
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name=constants.THREAD_GEOLOCATION_REFRESH,
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target=self._provider.refresh))
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else:
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log.error("Geolocation refresh failed"
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" - no connectivity")
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def get_result(self):
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"""Get result from the provider
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:return: the result object or return None if no results are available
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:rtype: LocationResult or None
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"""
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return self._provider.get_result()
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def get_territory_code(self):
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"""A convenience function for getting the current territory code
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:return: territory code or None if no results are available
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:rtype: string or None
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"""
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result = self._provider.get_result()
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if result:
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return result.territory_code
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else:
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return None
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def get_timezone(self):
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"""A convenience function for getting the current time zone
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:return: time zone or None if no results are available
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:rtype: string or None
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"""
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result = self._provider.get_result()
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if result:
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return result.timezone
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else:
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return None
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def get_public_ip_address(self):
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"""A convenience function for getting current public IP
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:return: current public IP or None if no results are available
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:rtype: string or None
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"""
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result = self._provider.get_result()
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if result:
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return result.public_ip_address
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else:
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return None
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class LocationResult(object):
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def __init__(self, territory_code=None, timezone=None,
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timezone_source="unknown", public_ip_address=None, city=None):
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"""Encapsulates the result from GeoIP lookup.
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:param territory_code: the territory code from GeoIP lookup
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:type territory_code: string
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:param timezone: the time zone from GeoIP lookup
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:type timezone: string
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:param timezone_source: specifies source of the time zone string
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:type timezone_source: string
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:param public_ip_address: current public IP address
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:type public_ip_address: string
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:param city: current city
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:type city: string
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"""
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self._territory_code = territory_code
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self._timezone = timezone
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self._timezone_source = timezone_source
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self._public_ip_address = public_ip_address
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self._city = city
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@property
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def territory_code(self):
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return self._territory_code
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@property
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def timezone(self):
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return self._timezone
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@property
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def public_ip_address(self):
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return self._public_ip_address
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@property
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def city(self):
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return self._city
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def __str__(self):
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if self.territory_code:
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result_string = "territory: %s" % self.territory_code
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if self.timezone:
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result_string += "\ntime zone: %s (from %s)" % (
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self.timezone, self._timezone_source
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)
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if self.public_ip_address:
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result_string += "\npublic IP address: "
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result_string += "%s" % self.public_ip_address
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if self.city:
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result_string += "\ncity: %s" % self.city
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return result_string
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else:
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return "Position unknown"
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class GeolocationBackend(object):
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"""Base class for GeoIP backends."""
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def __init__(self):
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self._result = None
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self._result_lock = threading.Lock()
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def get_name(self):
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"""Get name of the backend
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:return: name of the backend
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:rtype: string
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"""
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pass
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def refresh(self, force=False):
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"""Refresh the geolocation data
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:param force: do a refresh even if there is a result already available
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:type force: bool
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"""
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# check if refresh is needed
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if force is True or self._result is None:
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log.info("Starting geolocation lookup")
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log.info("Geolocation provider: %s", self.get_name())
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global refresh_in_progress
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with refresh_condition:
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refresh_in_progress = True
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start_time = time.time()
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self._refresh()
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log.info("Geolocation lookup finished in %1.1f seconds",
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time.time() - start_time)
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with refresh_condition:
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refresh_in_progress = False
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refresh_condition.notify_all()
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# check if there were any results
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result = self.get_result()
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if result:
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log.info("got results from geolocation")
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slog.info("geolocation result:\n%s", result)
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else:
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log.info("no results from geolocation")
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def _refresh(self):
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pass
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def _set_result(self, result):
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"""Set current location
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:param result: geolocation lookup result
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:type result: LocationResult
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"""
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# As the value is set from a thread but read from
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# the main thread, use a lock when accessing it
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with self._result_lock:
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self._result = result
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def get_result(self):
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"""Get current location
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:return: geolocation lookup result
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:rtype: LocationResult
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"""
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with self._result_lock:
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return self._result
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def __str__(self):
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return self.get_name()
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class FedoraGeoIPProvider(GeolocationBackend):
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"""The Fedora GeoIP service provider"""
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API_URL = "https://geoip.fedoraproject.org/city"
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def __init__(self):
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GeolocationBackend.__init__(self)
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def get_name(self):
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return "Fedora GeoIP"
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def _refresh(self):
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try:
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reply = urllib2.urlopen(self.API_URL, timeout=
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constants.NETWORK_CONNECTION_TIMEOUT)
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if reply:
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json_reply = json.load(reply)
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territory = json_reply.get("country_code", None)
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timezone_source = "GeoIP"
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timezone_code = json_reply.get("time_zone", None)
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if timezone_code is not None:
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# the timezone code is returned as Unicode,
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# it needs to be converted to UTF-8 encoded string,
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# otherwise some string processing in Anaconda might fail
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timezone_code = timezone_code.encode("utf8")
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# check if the timezone returned by the API is valid
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if not is_valid_timezone(timezone_code):
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# try to get a timezone from the territory code
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timezone_code = get_preferred_timezone(territory)
|
|
timezone_source = "territory code"
|
|
if territory or timezone_code:
|
|
self._set_result(LocationResult(
|
|
territory_code=territory,
|
|
timezone=timezone_code,
|
|
timezone_source=timezone_source))
|
|
except urllib2.HTTPError as e:
|
|
log.debug("Geoloc: HTTPError for Fedora GeoIP API lookup:\n%s", e)
|
|
except urllib2.URLError as e:
|
|
log.debug("Geoloc: URLError for Fedora GeoIP API lookup:\n%s", e)
|
|
except ValueError as e:
|
|
log.debug("Geoloc: Unable to decode GeoIP JSON:\n%s", e)
|
|
|
|
|
|
class HostipGeoIPProvider(GeolocationBackend):
|
|
"""The Hostip GeoIP service provider"""
|
|
|
|
API_URL = "http://api.hostip.info/get_json.php"
|
|
|
|
def __init__(self):
|
|
GeolocationBackend.__init__(self)
|
|
|
|
def get_name(self):
|
|
return "Hostip.info"
|
|
|
|
def _refresh(self):
|
|
try:
|
|
reply = urllib2.urlopen(self.API_URL, timeout=
|
|
constants.NETWORK_CONNECTION_TIMEOUT)
|
|
if reply:
|
|
reply_dict = json.load(reply)
|
|
territory = reply_dict.get("country_code", None)
|
|
|
|
# unless at least country_code is available,
|
|
# we don't return any results
|
|
if territory is not None:
|
|
self._set_result(LocationResult(
|
|
territory_code=territory,
|
|
public_ip_address=reply_dict.get("ip", None),
|
|
city=reply_dict.get("city", None)
|
|
))
|
|
except urllib2.URLError as e:
|
|
log.debug("Geoloc: URLError during Hostip lookup:\n%s", e)
|
|
|
|
|
|
class GoogleWiFiLocationProvider(GeolocationBackend):
|
|
"""The Google WiFi location service provider"""
|
|
|
|
API_URL = "https://maps.googleapis.com/" \
|
|
"maps/api/browserlocation/json?browser=firefox&sensor=true"
|
|
|
|
def __init__(self):
|
|
GeolocationBackend.__init__(self)
|
|
|
|
def get_name(self):
|
|
return "Google WiFi"
|
|
|
|
def _refresh(self):
|
|
log.info("Scanning for WiFi access points.")
|
|
scanner = WifiScanner(scan_now=True)
|
|
access_points = scanner.get_results()
|
|
if access_points:
|
|
try:
|
|
url = self._get_url(access_points)
|
|
reply = urllib2.urlopen(url, timeout=
|
|
constants.NETWORK_CONNECTION_TIMEOUT)
|
|
result_dict = json.load(reply)
|
|
status = result_dict.get('status', 'NOT OK')
|
|
if status == 'OK':
|
|
lat = result_dict['location']['lat']
|
|
lon = result_dict['location']['lng']
|
|
log.info("Found current location.")
|
|
coords = Coordinates(lat=lat, lon=lon)
|
|
geocoder = Geocoder()
|
|
geocoding_result = geocoder.reverse_geocode_coords(coords)
|
|
# for compatibility, return GeoIP result instead
|
|
# of GeocodingResult
|
|
t_code = geocoding_result.territory_code
|
|
self._set_result(LocationResult(territory_code=t_code))
|
|
else:
|
|
log.info("Service couldn't find current location.")
|
|
except urllib2.URLError as e:
|
|
log.debug("Geoloc: URLError during Google"
|
|
" Wifi lookup:\n%s", e)
|
|
else:
|
|
log.info("No WiFi access points found - can't detect location.")
|
|
|
|
def _get_url(self, access_points):
|
|
"""Generate Google API URL for the given access points
|
|
|
|
:param access_points: a list of WiFiAccessPoint objects
|
|
:return Google WiFi location API URL
|
|
:rtype: string
|
|
"""
|
|
url = self.API_URL
|
|
for ap in access_points:
|
|
url += self._describe_access_point(ap)
|
|
return url
|
|
|
|
def _describe_access_point(self, access_point):
|
|
"""Describe an access point in a format compatible with the API call
|
|
|
|
:param access_point: a WiFiAccessPoint instance
|
|
:return: API compatible AP description
|
|
:rtype: string
|
|
"""
|
|
quoted_ssid = urllib.quote_plus(access_point.ssid)
|
|
return "&wifi=mac:%s|ssid:%s|ss:%d" % (access_point.bssid,
|
|
quoted_ssid, access_point.rssi)
|
|
|
|
|
|
class Geocoder(object):
|
|
"""Provides online geocoding services
|
|
(only reverse geocoding at the moment).
|
|
"""
|
|
|
|
# MapQuest Nominatim instance without (?) rate limiting
|
|
NOMINATIM_API_URL = "http://open.mapquestapi.com/" \
|
|
"nominatim/v1/reverse.php?format=json"
|
|
# Alternative OSM hosted Nominatim instance (with rate limiting):
|
|
# http://nominatim.openstreetmap.org/reverse?format=json
|
|
|
|
def __init__(self, geocoder=constants.GEOLOC_DEFAULT_GEOCODER):
|
|
""":param geocoder: a constant selecting what geocoder to use"""
|
|
self._geocoder = geocoder
|
|
|
|
def reverse_geocode_coords(self, coordinates):
|
|
"""Turn geographic coordinates to address
|
|
|
|
:param coordinates: Coordinates (geographic coordinates)
|
|
:type coordinates: Coordinates
|
|
:return: GeocodingResult if the lookup succeeds or None if it fails
|
|
"""
|
|
if self._geocoder == constants.GEOLOC_GEOCODER_NOMINATIM:
|
|
return self._reverse_geocode_nominatim(coordinates)
|
|
else:
|
|
log.error("Wrong Geocoder specified!")
|
|
return None # unknown geocoder specified
|
|
|
|
def _reverse_geocode_nominatim(self, coordinates):
|
|
"""Reverse geocoding using the Nominatim API
|
|
Reverse geocoding tries to convert geographic coordinates
|
|
to an accurate address.
|
|
|
|
:param coordinates: input coordinates
|
|
:type coordinates: Coordinates
|
|
:return: an address or None if no address was found
|
|
:rtype: GeocodingResult or None
|
|
"""
|
|
url = "%s&addressdetails=1&lat=%f&lon=%f" % (
|
|
self.NOMINATIM_API_URL,
|
|
coordinates.latitude,
|
|
coordinates.longitude)
|
|
try:
|
|
reply = urllib2.urlopen(url, timeout=
|
|
constants.NETWORK_CONNECTION_TIMEOUT)
|
|
if reply:
|
|
reply_dict = json.load(reply)
|
|
territory_code = reply_dict['address']['country_code'].upper()
|
|
return GeocodingResult(coordinates=coordinates,
|
|
territory_code=territory_code)
|
|
else:
|
|
return None
|
|
except urllib2.URLError as e:
|
|
log.debug("Geoloc: URLError during Nominatim reverse geocoding"
|
|
" :\n%s", e)
|
|
|
|
|
|
class GeocodingResult(object):
|
|
"""A result from geocoding lookup"""
|
|
|
|
def __init__(self, coordinates=None, territory_code=None, address=None):
|
|
"""
|
|
:param coordinates: geographic coordinates
|
|
:type coordinates: Coordinates
|
|
:param territory_code: territory code of the result
|
|
:type territory_code: string
|
|
:param address: a (street) address string
|
|
:type address: string
|
|
"""
|
|
self._coords = coordinates
|
|
self._territory_code = territory_code
|
|
self._address = address
|
|
|
|
@property
|
|
def coordinates(self):
|
|
return self._coords
|
|
|
|
@property
|
|
def territory_code(self):
|
|
return self._territory_code
|
|
|
|
@property
|
|
def address(self):
|
|
return self._address
|
|
|
|
|
|
class Coordinates(object):
|
|
"""A set of geographic coordinates."""
|
|
|
|
def __init__(self, lat=None, lon=None):
|
|
"""
|
|
:param lat: WGS84 latitude
|
|
:type lat: float
|
|
:param lon: WGS84 longitude
|
|
:type lon: float
|
|
"""
|
|
self._lat = lat
|
|
self._lon = lon
|
|
|
|
@property
|
|
def latitude(self):
|
|
return self._lat
|
|
|
|
@property
|
|
def longitude(self):
|
|
return self._lon
|
|
|
|
def __str__(self):
|
|
return "lat,lon: %f,%f" % (self.latitude, self.longitude)
|
|
|
|
|
|
class WifiScanner(object):
|
|
"""Uses the Network Manager DBUS API to provide information
|
|
about nearby WiFi access points
|
|
"""
|
|
|
|
NETWORK_MANAGER_DEVICE_TYPE_WIFI = 2
|
|
|
|
def __init__(self, scan_now=True):
|
|
"""
|
|
:param scan_now: if an initial scan should be done
|
|
:type scan_now: bool
|
|
"""
|
|
self._scan_results = []
|
|
if scan_now:
|
|
self.scan()
|
|
|
|
def scan(self):
|
|
"""Scan for WiFi access points"""
|
|
devices = ""
|
|
access_points = []
|
|
# connect to network manager
|
|
try:
|
|
bus = dbus.SystemBus()
|
|
network_manager = bus.get_object('org.freedesktop.NetworkManager',
|
|
'/org/freedesktop/NetworkManager')
|
|
devices = network_manager.GetDevices()
|
|
except dbus.DBusException as e:
|
|
log.debug("Exception caught during WiFi AP scan: %s", e)
|
|
|
|
# iterate over all devices
|
|
for device_path in devices:
|
|
device = bus.get_object('org.freedesktop.NetworkManager',
|
|
device_path)
|
|
# get type of the device
|
|
device_type = device.Get("org.freedesktop.NetworkManager.Device",
|
|
'DeviceType')
|
|
# iterate over all APs
|
|
if device_type == self.NETWORK_MANAGER_DEVICE_TYPE_WIFI:
|
|
|
|
dbus_iface_id = 'org.freedesktop.DBus.Properties'
|
|
ap_id = "org.freedesktop.NetworkManager.AccessPoint"
|
|
|
|
for ap_path in device.GetAccessPoints():
|
|
# drill down to the DBUS object for the AP
|
|
net = bus.get_object('org.freedesktop.NetworkManager', ap_path)
|
|
network_properties = dbus.Interface(
|
|
net, dbus_interface=dbus_iface_id)
|
|
|
|
# get the MAC, name & signal strength
|
|
bssid = str(network_properties.Get(ap_id, "HwAddress"))
|
|
essid = str(network_properties.Get(
|
|
ap_id, "Ssid", byte_arrays=True))
|
|
rssi = int(network_properties.Get(ap_id, "Strength"))
|
|
|
|
# create a new AP object and add it to the
|
|
# list of discovered APs
|
|
ap = WiFiAccessPoint(bssid=bssid, ssid=essid, rssi=rssi)
|
|
access_points.append(ap)
|
|
self._scan_results = access_points
|
|
|
|
def get_results(self):
|
|
"""
|
|
:return: a list of WiFiAccessPoint objects or
|
|
an empty list if no APs were found or the scan failed
|
|
"""
|
|
return self._scan_results
|
|
|
|
|
|
class WiFiAccessPoint(object):
|
|
"""Encapsulates information about WiFi access point"""
|
|
|
|
def __init__(self, bssid, ssid=None, rssi=None):
|
|
"""
|
|
:param bssid: MAC address of the access point
|
|
:param ssid: name of the access point
|
|
:param rssi: signal strength
|
|
"""
|
|
self._bssid = bssid
|
|
self._ssid = ssid
|
|
self._rssi = rssi
|
|
|
|
@property
|
|
def bssid(self):
|
|
return self._bssid
|
|
|
|
@property
|
|
def ssid(self):
|
|
return self._ssid
|
|
|
|
@property
|
|
def rssi(self):
|
|
return self._rssi
|
|
|
|
def __str__(self):
|
|
return "bssid (MAC): %s ssid: %s rssi " \
|
|
"(signal strength): %d" % (self.bssid, self.ssid, self.rssi)
|
|
|
|
if __name__ == "__main__":
|
|
print("GeoIP directly started")
|
|
|
|
print("trying the default backend")
|
|
location_info = LocationInfo()
|
|
location_info.refresh()
|
|
print(" provider used: %s" % location_info._provider)
|
|
print(" territory code: %s" % location_info.get_territory_code())
|
|
|
|
print("trying the Fedora GeoIP backend")
|
|
location_info = LocationInfo(provider_id=
|
|
constants.GEOLOC_PROVIDER_FEDORA_GEOIP)
|
|
location_info.refresh()
|
|
print(" provider used: %s" % location_info._provider)
|
|
print(" territory code: %s" % location_info.get_territory_code())
|
|
|
|
print("trying the Google WiFi location backend")
|
|
location_info = LocationInfo(provider_id=
|
|
constants.GEOLOC_PROVIDER_GOOGLE_WIFI)
|
|
location_info.refresh()
|
|
print(" provider used: %s" % location_info._provider)
|
|
print(" territory code: %s" % location_info.get_territory_code())
|
|
|
|
print("trying the Hostip backend")
|
|
location_info = LocationInfo(provider_id=constants.GEOLOC_PROVIDER_HOSTIP)
|
|
location_info.refresh()
|
|
print(" provider used: %s" % location_info._provider)
|
|
print(" territory code: %s" % location_info.get_territory_code())
|