/usr/lib/python2.7/dist-packages/geopy/geocoders/baidu.py is in python-geopy 1.11.0+ds1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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:class:`.Baidu` is the Baidu Maps geocoder.
"""
from geopy.compat import urlencode
from geopy.geocoders.base import Geocoder, DEFAULT_TIMEOUT
from geopy.exc import (
GeocoderQueryError,
GeocoderQuotaExceeded,
GeocoderAuthenticationFailure,
)
from geopy.location import Location
from geopy.util import logger
__all__ = ("Baidu", )
class Baidu(Geocoder):
"""
Geocoder using the Baidu Maps v2 API. Documentation at:
http://developer.baidu.com/map/webservice-geocoding.htm
"""
def __init__(
self,
api_key,
scheme='http',
timeout=DEFAULT_TIMEOUT,
proxies=None,
user_agent=None
):
"""
Initialize a customized Baidu geocoder using the v2 API.
.. versionadded:: 1.0.0
:param string api_key: The API key required by Baidu Map to perform
geocoding requests. API keys are managed through the Baidu APIs
console (http://lbsyun.baidu.com/apiconsole/key).
:param string scheme: Use 'https' or 'http' as the API URL's scheme.
Default is http and only http support.
:param dict proxies: If specified, routes this geocoder's requests
through the specified proxy. E.g., {"https": "192.0.2.0"}. For
more information, see documentation on
:class:`urllib2.ProxyHandler`.
"""
super(Baidu, self).__init__(
scheme=scheme, timeout=timeout, proxies=proxies, user_agent=user_agent
)
self.api_key = api_key
self.scheme = scheme
self.doc = {}
self.api = 'http://api.map.baidu.com/geocoder/v2/'
@staticmethod
def _format_components_param(components):
"""
Format the components dict to something Baidu understands.
"""
return "|".join(
(":".join(item)
for item in components.items()
)
)
def geocode(
self,
query,
exactly_one=True,
timeout=None
):
"""
Geocode a location query.
:param string query: The address or query you wish to geocode.
:param bool exactly_one: Return one result or a list of results, if
available.
:param int timeout: Time, in seconds, to wait for the geocoding service
to respond before raising a :class:`geopy.exc.GeocoderTimedOut`
exception. Set this only if you wish to override, on this call
only, the value set during the geocoder's initialization.
"""
params = {
'ak': self.api_key,
'output': 'json',
'address': self.format_string % query,
}
url = "?".join((self.api, urlencode(params)))
logger.debug("%s.geocode: %s", self.__class__.__name__, url)
return self._parse_json(
self._call_geocoder(url, timeout=timeout), exactly_one=exactly_one
)
def reverse(self, query, timeout=None): # pylint: disable=W0221
"""
Given a point, find an address.
:param query: The coordinates for which you wish to obtain the
closest human-readable addresses.
:type query: :class:`geopy.point.Point`, list or tuple of (latitude,
longitude), or string as "%(latitude)s, %(longitude)s"
:param int timeout: Time, in seconds, to wait for the geocoding service
to respond before raising a :class:`geopy.exc.GeocoderTimedOut`
exception. Set this only if you wish to override, on this call
only, the value set during the geocoder's initialization.
"""
params = {
'ak': self.api_key,
'output': 'json',
'location': self._coerce_point_to_string(query),
}
url = "?".join((self.api, urlencode(params)))
logger.debug("%s.reverse: %s", self.__class__.__name__, url)
return self._parse_reverse_json(
self._call_geocoder(url, timeout=timeout)
)
@staticmethod
def _parse_reverse_json(page):
"""
Parses a location from a single-result reverse API call.
"""
place = page.get('result')
location = place.get('formatted_address').encode('utf-8')
latitude = place['location']['lat']
longitude = place['location']['lng']
return Location(location, (latitude, longitude), place)
def _parse_json(self, page, exactly_one=True):
"""
Returns location, (latitude, longitude) from JSON feed.
"""
place = page.get('result', None)
if not place:
self._check_status(page.get('status'))
return None
def parse_place(place):
"""
Get the location, lat, lng from a single JSON place.
"""
location = place.get('level')
latitude = place['location']['lat']
longitude = place['location']['lng']
return Location(location, (latitude, longitude), place)
if exactly_one:
return parse_place(place)
else:
return [parse_place(item) for item in place]
@staticmethod
def _check_status(status):
"""
Validates error statuses.
"""
if status == '0':
# When there are no results, just return.
return
if status == '1':
raise GeocoderQueryError(
'Internal server error.'
)
elif status == '2':
raise GeocoderQueryError(
'Invalid request.'
)
elif status == '3':
raise GeocoderAuthenticationFailure(
'Authentication failure.'
)
elif status == '4':
raise GeocoderQuotaExceeded(
'Quota validate failure.'
)
elif status == '5':
raise GeocoderQueryError(
'AK Illegal or Not Exist.'
)
elif status == '101':
raise GeocoderQueryError(
'Your request was denied.'
)
elif status == '102':
raise GeocoderQueryError(
'IP/SN/SCODE/REFERER Illegal:'
)
elif status == '2xx':
raise GeocoderQueryError(
'Has No Privilleges.'
)
elif status == '3xx':
raise GeocoderQuotaExceeded(
'Quota Error.'
)
else:
raise GeocoderQueryError('Unknown error')
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