示例#1
0
def download_feature(feature_type):
    """Generic request to download OSM data.

    :param feature_type The feature to extract.
    :type feature_type str

    :return A zip file
    """
    if feature_type not in FEATURES:
        abort(404)

    bbox = request.args.get('bbox', config.BBOX)
    # Get the QGIS version
    # Currently 1, 2 are accepted, default to 2
    # A different qml style file will be returned depending on the version
    qgis_version = int(request.args.get('qgis_version', '2'))
    # Optional parameter that allows the user to specify the filename.
    output_prefix = request.args.get('output_prefix', feature_type)
    # A different keywords file will be returned depending on the version.
    inasafe_version = request.args.get('inasafe_version', None)
    # Optional parameter that allows the user to specify the language for
    # the legend in QGIS.
    lang = request.args.get('lang', 'en')

    # error = None
    try:
        coordinates = split_bbox(bbox)
    except ValueError:
        # error = "Invalid bbox"
        # coordinates = split_bbox(config.BBOX)
        abort(500)
    else:
        try:
            file_handle = get_osm_file(coordinates, feature_type, 'body')
        except OverpassTimeoutException:
            abort(408)
        except OverpassBadRequestException:
            abort(500)
        except OverpassConcurrentRequestException:
            abort(509)
        except URLError:
            abort(500)

    try:
        # noinspection PyUnboundLocalVariable
        zip_file = import_and_extract_shapefile(
            feature_type,
            file_handle.name,
            qgis_version,
            output_prefix,
            inasafe_version,
            lang)

        f = open(zip_file, 'rb')
    except IOError:
        abort(404)
        return
    return Response(f.read(), mimetype='application/zip')
 def test_split_bbox(self):
     """Test we can split a bounding box nicely."""
     message = 'test_split_box failed.'
     self.assertEqual(
         split_bbox('106.78674459457397,-6.141301491467023,'
                    '106.80691480636597,-6.133834354201348'), {
                        'SW_lng': 106.78674459457397,
                        'SW_lat': -6.141301491467023,
                        'NE_lng': 106.80691480636597,
                        'NE_lat': -6.133834354201348
                    }, message)
示例#3
0
def download_feature(feature_type):
    """Generic request to download OSM data.

    :param feature_type The feature to extract.
    :type feature_type str

    :return A zip file
    """
    if feature_type not in FEATURES:
        abort(404)

    bbox = request.args.get('bbox', config.BBOX)
    # Get the QGIS version
    # Currently 1, 2 are accepted, default to 2
    # A different qml style file will be returned depending on the version
    qgis_version = int(request.args.get('qgis_version', '2'))
    # Optional parameter that allows the user to specify the filename.
    output_prefix = request.args.get('output_prefix', feature_type)
    # A different keywords file will be returned depending on the version.
    inasafe_version = request.args.get('inasafe_version', None)
    # Optional parameter that allows the user to specify the language for
    # the legend in QGIS.
    lang = request.args.get('lang', 'en')

    # error = None
    try:
        coordinates = split_bbox(bbox)
    except ValueError:
        # error = "Invalid bbox"
        # coordinates = split_bbox(config.BBOX)
        abort(500)
    else:
        try:
            file_handle = get_osm_file(coordinates, feature_type, 'body')
        except OverpassTimeoutException:
            abort(408)
        except OverpassBadRequestException:
            abort(500)
        except OverpassConcurrentRequestException:
            abort(509)
        except URLError:
            abort(500)

    try:
        # noinspection PyUnboundLocalVariable
        zip_file = import_and_extract_shapefile(feature_type, file_handle.name,
                                                qgis_version, output_prefix,
                                                inasafe_version, lang)

        f = open(zip_file, 'rb')
    except IOError:
        abort(404)
        return
    return Response(f.read(), mimetype='application/zip')
示例#4
0
def user_status():
    """Get nodes for user as a json doc.

        .. note:: User from reporter.js

        To use e.g.:

        http://localhost:5000/user?bbox=20.431909561157227,
        -34.02849543118406,20.45207977294922,-34.02227106658948&
        obj=building&username=timlinux
    """
    username = request.args.get('username')
    bbox = request.args.get('bbox')

    try:
        coordinates = split_bbox(bbox)
    except ValueError:
        error = "Invalid bbox"
        coordinates = split_bbox(config.BBOX)
        LOGGER.exception(error + str(coordinates))
    else:
        try:
            file_handle = get_osm_file(coordinates)
        except OverpassTimeoutException:
            error = "Bad request. Maybe the bbox is too big!"
            LOGGER.exception(error + str(coordinates))
        except OverpassConcurrentRequestException:
            error = 'Please try again later, another query is running.'
            LOGGER.exception(error + str(coordinates))
        except OverpassBadRequestException:
            error = "Bad request."
            LOGGER.exception(error + str(coordinates))
        except URLError:
            error = "Bad request."
            LOGGER.exception(error + str(coordinates))
        else:
            node_data = osm_nodes_by_user(file_handle, username)
            return jsonify(d=node_data)
示例#5
0
def user_status():
    """Get nodes for user as a json doc.

        .. note:: User from reporter.js

        To use e.g.:

        http://localhost:5000/user?bbox=20.431909561157227,
        -34.02849543118406,20.45207977294922,-34.02227106658948&
        obj=building&username=timlinux
    """
    username = request.args.get('username')
    bbox = request.args.get('bbox')

    try:
        coordinates = split_bbox(bbox)
    except ValueError:
        error = "Invalid bbox"
        coordinates = split_bbox(config.BBOX)
        LOGGER.exception(error + str(coordinates))
    else:
        try:
            file_handle = get_osm_file(coordinates)
        except OverpassTimeoutException:
            error = "Bad request. Maybe the bbox is too big!"
            LOGGER.exception(error + str(coordinates))
        except OverpassConcurrentRequestException:
            error = 'Please try again later, another query is running.'
            LOGGER.exception(error + str(coordinates))
        except OverpassBadRequestException:
            error = "Bad request."
            LOGGER.exception(error + str(coordinates))
        except URLError:
            error = "Bad request."
            LOGGER.exception(error + str(coordinates))
        else:
            node_data = osm_nodes_by_user(file_handle, username)
            return jsonify(d=node_data)
 def test_split_bbox(self):
     """Test we can split a bounding box nicely."""
     message = 'test_split_box failed.'
     self.assertEqual(
         split_bbox('106.78674459457397,-6.141301491467023,'
                    '106.80691480636597,-6.133834354201348'),
         {
             'SW_lng': 106.78674459457397,
             'SW_lat': -6.141301491467023,
             'NE_lng': 106.80691480636597,
             'NE_lat': -6.133834354201348
         },
         message
     )
 def test_split_bad_bbox(self):
     """Test we can handle bad bounding boxes nicely."""
     with self.assertRaises(ValueError):
         split_bbox('invalid bbox string')
 def test_split_bad_bbox(self):
     """Test we can handle bad bounding boxes nicely."""
     with self.assertRaises(ValueError):
         split_bbox('invalid bbox string')
示例#9
0
def home():
    """Home page view.

    On this page a map and the report will be shown.
    """
    default_tag = 'highway'
    sorted_user_list = []
    bbox = request.args.get('bbox', config.BBOX)
    tag_name = request.args.get('obj', default_tag)
    date_from = request.args.get('date_from', None)
    date_to = request.args.get('date_to', None)
    error = None
    try:
        coordinates = split_bbox(bbox)
    except ValueError:
        error = "Invalid bbox"
        coordinates = split_bbox(config.BBOX)
    else:

        if tag_name not in list(TAG_MAPPING.keys()):
            error = "Unsupported object type"
            tag_name = default_tag
        try:
            feature_type = TAG_MAPPING[tag_name]
            file_handle = get_osm_file(coordinates, feature_type, 'meta',
                                       date_from, date_to)
        except OverpassTimeoutException:
            error = 'Timeout, try a smaller area.'
        except OverpassBadRequestException:
            error = 'Bad request.'
        except OverpassConcurrentRequestException:
            error = 'Please try again later, another query is running.'
        except URLError:
            error = 'Bad request.'
        else:
            try:
                sorted_user_list = osm_object_contributions(
                    file_handle, tag_name)
            except xml.sax.SAXParseException:
                error = ('Invalid OSM xml file retrieved. Please try again '
                         'later.')

    node_count, way_count = get_totals(sorted_user_list)

    # We need to manually cast float in string, otherwise floats are
    # truncated, and then rounds in Leaflet result in a wrong bbox
    # Note: slit_bbox should better keep returning real floats
    coordinates = dict((k, repr(v)) for k, v in coordinates.items())

    download_url = '%s-shp' % TAG_MAPPING[tag_name]
    context = dict(
        sorted_user_list=sorted_user_list,
        way_count=way_count,
        node_count=node_count,
        user_count=len(sorted_user_list),
        bbox=bbox,
        current_tag_name=tag_name,
        download_url=download_url,
        available_tag_names=list(TAG_MAPPING.keys()),
        error=error,
        coordinates=coordinates,
        display_update_control=int(config.DISPLAY_UPDATE_CONTROL),
    )
    # noinspection PyUnresolvedReferences
    return render_template('base.html', **context)
示例#10
0
def home():
    """Home page view.

    On this page a map and the report will be shown.
    """
    default_tag = 'highway'
    sorted_user_list = []
    bbox = request.args.get('bbox', config.BBOX)
    tag_name = request.args.get('obj', default_tag)
    date_from = request.args.get('date_from', None)
    date_to = request.args.get('date_to', None)
    error = None
    try:
        coordinates = split_bbox(bbox)
    except ValueError:
        error = "Invalid bbox"
        coordinates = split_bbox(config.BBOX)
    else:

        if tag_name not in list(TAG_MAPPING.keys()):
            error = "Unsupported object type"
            tag_name = default_tag
        try:
            feature_type = TAG_MAPPING[tag_name]
            file_handle = get_osm_file(
                coordinates,
                feature_type,
                'meta',
                date_from,
                date_to)
        except OverpassTimeoutException:
            error = 'Timeout, try a smaller area.'
        except OverpassBadRequestException:
            error = 'Bad request.'
        except OverpassConcurrentRequestException:
            error = 'Please try again later, another query is running.'
        except URLError:
            error = 'Bad request.'
        else:
            try:
                sorted_user_list = osm_object_contributions(
                    file_handle, tag_name)
            except xml.sax.SAXParseException:
                error = (
                    'Invalid OSM xml file retrieved. Please try again '
                    'later.')

    node_count, way_count = get_totals(sorted_user_list)

    # We need to manually cast float in string, otherwise floats are
    # truncated, and then rounds in Leaflet result in a wrong bbox
    # Note: slit_bbox should better keep returning real floats
    coordinates = dict((k, repr(v)) for k, v in coordinates.items())

    download_url = '%s-shp' % TAG_MAPPING[tag_name]
    context = dict(
        sorted_user_list=sorted_user_list,
        way_count=way_count,
        node_count=node_count,
        user_count=len(sorted_user_list),
        bbox=bbox,
        current_tag_name=tag_name,
        download_url=download_url,
        available_tag_names=list(TAG_MAPPING.keys()),
        error=error,
        coordinates=coordinates,
        display_update_control=int(config.DISPLAY_UPDATE_CONTROL),
    )
    # noinspection PyUnresolvedReferences
    return render_template('base.html', **context)
示例#11
0
def download_feature(feature_type):
    """Generic request to download OSM data.

    :param feature_type The feature to extract.
    :type feature_type str

    :return A zip file
    """
    if feature_type not in FEATURES:
        abort(404)

    bbox = request.args.get('bbox', config.BBOX)
    # Get the QGIS version
    # Currently 1, 2 are accepted, default to 2
    # A different qml style file will be returned depending on the version
    qgis_version = int(request.args.get('qgis_version', '2'))
    # Optional parameter that allows the user to specify the filename.
    output_prefix = request.args.get('output_prefix', feature_type)
    # A different keywords file will be returned depending on the version.
    inasafe_version = request.args.get('inasafe_version', None)
    # Optional parameter that allows the user to specify the language for
    # the legend in QGIS.
    lang = request.args.get('lang', 'en')

    # error = None
    try:
        coordinates = split_bbox(bbox)
    except ValueError:
        # error = "Invalid bbox"
        # coordinates = split_bbox(config.BBOX)
        abort(500)
    else:
        local_osm_file = abspath(
            join(dirname(__file__), 'resources', 'pbf', 'data.pbf'))
        if not exists(local_osm_file):
            LOGGER.info('Going to download data from overpass.')
            try:
                file_handle = get_osm_file(coordinates, feature_type, 'body')
            except OverpassTimeoutException:
                abort(408)
            except OverpassBadRequestException:
                abort(500)
            except OverpassConcurrentRequestException:
                abort(509)
            except URLError:
                abort(500)
        else:
            LOGGER.info(
                'Local PBF file detected. We will not use the Overpass API.')
            file_handle = open(local_osm_file, 'rb')

    # This is for logging requests so we can see what queries we received
    date_time = datetime.datetime.now()

    log_data = {
        'feature_type': feature_type,
        'qgis_version': qgis_version,
        'inasafe_version': inasafe_version,
        'year': date_time.year,
        'month': date_time.month,
        'day': date_time.day,
        'hour': date_time.hour,
        'minute': date_time.minute,
        'second': date_time.second
    }
    # add keys for SW_lng, SW_lat, NE_lng, etc.
    # to our log and write the log file out...
    log_data.update(coordinates)
    log_file_name = (
        '{year}{month}{day}-{hour}{minute}{second}.geojson').format(**log_data)
    log_path = os.path.join(config.LOG_DIR, log_file_name)
    # Note that all the double {{ will be rendered as single below
    # They need to be double so that python does not confuse them as
    # string interpolators
    log_message = """
    {{
        "type": "FeatureCollection",
        "features": [
            {{
                "type": "Feature",
                "properties": {{
                    "feature_type": "{feature_type}",
                    "qgis_version": "{qgis_version}",
                    "inasafe_version": "{inasafe_version}",
                    "year": {year},
                    "month": {month},
                    "day": {day},
                    "hour": {hour}
                }},
                "geometry": {{
                    "type": "Polygon",
                    "coordinates": [
                        [
                            [
                                {SW_lng},
                                {NE_lat}
                            ],
                            [
                                {NE_lng},
                                {NE_lat}
                            ],
                            [
                                {NE_lng},
                                {SW_lat}
                            ],
                            [
                                {SW_lng},
                                {SW_lat}
                            ],
                            [
                                {SW_lng},
                                {NE_lat}
                            ]
                        ]
                    ]
                }}
            }}
        ]
    }}""".format(**log_data)
    log_file = open(log_path, "w")
    log_file.write(log_message)
    log_file.close()

    try:
        # noinspection PyUnboundLocalVariable
        zip_file = import_and_extract_shapefile(
            feature_type,
            file_handle.name,
            qgis_version,
            output_prefix,
            inasafe_version,
            lang)

        f = open(zip_file, 'rb')
    except IOError:
        abort(404)
        return
    return Response(f.read(), mimetype='application/zip')