def test_url_build(self):
base_url = 'http://example.com'
queries = [('q1', 'foo'), ('q2', 'bar'), ('q2', 'baz')]
url_helper = UrlHelper()
url = url_helper.build(base_url, queries)
expected_url = 'http://example.com?q1=foo&q2=baz'
self.assertURLEqual(url, expected_url)
def get_get_legend_graphic_url(self):
""" Creates the url for the wms getLegendGraphic request.
Returns:
str: URL for getLegendGraphic request.
"""
uri = self.service.operation_urls.filter(
operation=OGCOperationEnum.GET_LEGEND_GRAPHIC.value,
method="Get").first()
if uri is None:
return
uri = uri.url
request_type = OGCOperationEnum.GET_LEGEND_GRAPHIC.value
layer = self.layer.identifier
service_format = self.service.metadata.get_formats().filter(
mime_type__istartswith='image/').exclude(
mime_type__icontains='svg').first()
if not service_format:
# no formats are supported... return None
return
version = self.service.service_type.version
service_type = self.service.service_type.name
queries = [
('REQUEST', request_type),
('LAYER', layer),
('FORMAT', service_format),
('SERVICE', service_type),
('VERSION', version),
]
url = UrlHelper.build(uri, queries)
return url
def get_describe_layer_url(self):
""" Creates the url for the wms DescribeLayer request.
Returns:
str: URL for DescribeLayer request.
"""
uri = self.service.operation_urls.filter(
operation=OGCOperationEnum.DESCRIBE_LAYER.value,
method="Get").first()
if uri is None:
return
uri = uri.url
request_type = OGCOperationEnum.DESCRIBE_LAYER.value
# make sure that version is describeLayer specific version 1.1.1 and not wms version 1.3.0
service_version = OGCServiceVersionEnum.V_1_1_1.value
service_type = OGCServiceEnum.WMS.value
layers = self.layer.identifier
queries = [
('REQUEST', request_type),
('VERSION', service_version),
('SERVICE', service_type),
('LAYERS', layers),
('WIDTH', 1),
('HEIGHT', 1),
]
url = UrlHelper.build(uri, queries)
return url
def get_describe_featuretype_url(self, type_name: str):
""" Creates the url for the wfs DescribeFeatureType request.
Args:
type_name (str): The name of the feature type to check.
Returns:
str: URL for DescribeFeatureType request.
"""
uri = None
try:
uri = self.parent_service.operation_urls.filter(
operation=OGCOperationEnum.DESCRIBE_FEATURE_TYPE,
method="Get").first()
except AttributeError:
pass
if uri is None:
return
if type_name is None:
return
uri = uri.url
request_type = OGCOperationEnum.DESCRIBE_FEATURE_TYPE.value
service_version = self.parent_service.service_type.version
service_type = OGCServiceEnum.WFS.value
if service_version == OGCServiceVersionEnum.V_1_0_0.value \
or service_version == OGCServiceVersionEnum.V_1_1_0.value:
queries = [('REQUEST', request_type), ('VERSION', service_version),
('SERVICE', service_type), ('typeName', type_name)]
else:
queries = [('REQUEST', request_type), ('VERSION', service_version),
('SERVICE', service_type), ('typeNames', type_name)]
url = UrlHelper.build(uri, queries)
return url
def get_get_styles_url(self):
""" Creates the url for the wms getStyles request.
Returns:
str: URL for getStyles request.
"""
uri = self.service.operation_urls.filter(
operation=OGCOperationEnum.GET_STYLES.value, method="Get").first()
if uri is None:
return
uri = uri.url
service_version = OGCServiceVersionEnum.V_1_1_1.value
service_type = OGCServiceEnum.WMS.value
layers = self.layer.identifier
request_type = OGCOperationEnum.GET_STYLES.value
queries = [('SERVICE', service_type), ('REQUEST', request_type),
('VERSION', service_version), ('LAYERS', layers)]
url = UrlHelper.build(uri, queries)
return url
def get_list_stored_queries(self):
""" Creates the url for the wfs ListStoredQueries request.
Returns:
str: URL for ListStoredQueries request.
"""
uri = self.service.operation_urls.filter(
operation=OGCOperationEnum.LIST_STORED_QUERIES.value,
method="Get").first()
if uri is None:
return
uri = uri.url
request_type = OGCOperationEnum.LIST_STORED_QUERIES.value
service_version = self.service.service_type.version
service_type = OGCServiceEnum.WFS.value
queries = [('REQUEST', request_type), ('VERSION', service_version),
('SERVICE', service_type)]
url = UrlHelper.build(uri, queries)
return url
def get_get_capabilities_url(self):
""" Creates the url for the wfs GetCapabilities request.
Returns:
str: URL for GetCapabilities request.
"""
uri = self.parent_service.operation_urls.filter(
operation=OGCOperationEnum.GET_CAPABILITIES.value, method="Get")
uri = uri.first()
if uri is None:
return
uri = uri.url
request_type = OGCOperationEnum.GET_CAPABILITIES.value
service_version = self.parent_service.service_type.version
service_type = OGCServiceEnum.WFS.value
queries = [('REQUEST', request_type), ('VERSION', service_version),
('SERVICE', service_type)]
url = UrlHelper.build(uri, queries)
return url
def get_get_feature_info_url(self):
""" Creates the url for the wms getFeatureInfo request.
Returns:
str: URL for getFeatureInfo request.
"""
uri = self.service.operation_urls.filter(
operation=OGCOperationEnum.GET_FEATURE_INFO.value,
method="Get").first()
if uri is None or not self.layer.is_queryable:
return
uri = uri.url
request_type = OGCOperationEnum.GET_FEATURE_INFO.value
service_version = self.service.service_type.version
service_type = OGCServiceEnum.WMS.value
layers = self.layer.identifier
crs = f'EPSG:{self.bbox.crs.srid}'
bbox = ','.join(map(str, self.bbox.extent))
styles = ''
width = 1
height = 1
query_layers = layers
x = 0
y = 0
queries = [('REQUEST', request_type), ('VERSION', service_version),
('SERVICE', service_type), ('LAYERS', layers),
(self.crs_srs_identifier, crs), ('BBOX', bbox),
('STYLES', styles), ('WIDTH', width), ('HEIGHT', height),
('QUERY_LAYERS', query_layers)]
if service_version.lower(
) == OGCServiceVersionEnum.V_1_3_0.value.lower():
queries = queries + [('I', x), ('J', y)]
else:
queries = queries + [('X', x), ('Y', y)]
url = UrlHelper.build(uri, queries)
return url
def get_get_map_url(self):
""" Creates the url for the wms getMap request.
Returns:
str: URL for getMap request.
"""
uri = self.service.operation_urls.filter(
operation=OGCOperationEnum.GET_MAP.value, method="Get").first()
if uri is None:
return
uri = uri.url
# Fetch request parameters
request_type = OGCOperationEnum.GET_MAP.value
service_version = self.service.service_type.version
service_type = OGCServiceEnum.WMS.value
# Get bbox value for request
layers = self.layer.identifier
srs = f'EPSG:{self.bbox.crs.srid}'
bbox = ','.join(map(str, self.bbox.extent))
styles = ''
width = 1
height = 1
service_format = self.service.metadata.get_formats().filter(
operation=OGCOperationEnum.GET_MAP.value,
mime_type__istartswith='image/').exclude(
mime_type__icontains='svg').first()
queries = [('REQUEST', request_type), ('VERSION', service_version),
('SERVICE', service_type), ('LAYERS', layers),
(self.crs_srs_identifier, srs), ('BBOX', bbox),
('STYLES', styles), ('WIDTH', width), ('HEIGHT', height),
('FORMAT', service_format)]
url = UrlHelper.build(uri, queries)
return url