def __init__(self, conf, mapfactory, opsonlineresource):
self.conf = conf
self.mapfactory = mapfactory
if self.conf.has_option('service', 'allowedepsgcodes'):
self.allowedepsgcodes = map(
lambda code: 'epsg:%s' % code,
self.conf.get('service', 'allowedepsgcodes').split(','))
else:
raise ServerConfigurationError(
'Allowed EPSG codes not properly configured.')
capetree = ElementTree.fromstring(self.capabilitiesxmltemplate)
elements = capetree.findall('Capability//OnlineResource')
for element in elements:
element.set('{http://www.w3.org/1999/xlink}href',
opsonlineresource)
self.processServiceCapabilities(capetree)
rootlayerelem = capetree.find(
'{http://www.opengis.net/wms}Capability/{http://www.opengis.net/wms}Layer'
)
for epsgcode in self.allowedepsgcodes:
rootlayercrs = ElementTree.Element('SRS')
rootlayercrs.text = epsgcode.upper()
rootlayerelem.append(rootlayercrs)
for layer in self.mapfactory.layers.values():
layerproj = Projection(layer.srs)
layername = ElementTree.Element('Name')
layername.text = layer.name
env = layer.envelope()
llp = layerproj.inverse(Coord(env.minx, env.miny))
urp = layerproj.inverse(Coord(env.maxx, env.maxy))
latlonbb = ElementTree.Element('LatLonBoundingBox')
latlonbb.set('minx', str(llp.x))
latlonbb.set('miny', str(llp.y))
latlonbb.set('maxx', str(urp.x))
latlonbb.set('maxy', str(urp.y))
layerbbox = ElementTree.Element('BoundingBox')
layerbbox.set('SRS', layerproj.epsgstring())
layerbbox.set('minx', str(env.minx))
layerbbox.set('miny', str(env.miny))
layerbbox.set('maxx', str(env.maxx))
layerbbox.set('maxy', str(env.maxy))
layere = ElementTree.Element('Layer')
layere.append(layername)
if layer.title:
layertitle = ElementTree.Element('Title')
layertitle.text = layer.title
layere.append(layertitle)
if layer.abstract:
layerabstract = ElementTree.Element('Abstract')
layerabstract.text = layer.abstract
layere.append(layerabstract)
if layer.queryable:
layere.set('queryable', '1')
layere.append(latlonbb)
layere.append(layerbbox)
if len(layer.wmsextrastyles) > 0:
for extrastyle in [layer.wmsdefaultstyle] + list(
layer.wmsextrastyles):
style = ElementTree.Element('Style')
stylename = ElementTree.Element('Name')
stylename.text = extrastyle
styletitle = ElementTree.Element('Title')
styletitle.text = extrastyle
style.append(stylename)
style.append(styletitle)
layere.append(style)
rootlayerelem.append(layere)
self.capabilities = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>\n' + ElementTree.tostring(
capetree)
def GetCapabilities(self, params):
if not self.capabilities:
capetree = ElementTree.fromstring(self.capabilitiesxmltemplate)
elements = capetree.findall('Capability//OnlineResource')
for element in elements:
element.set('{http://www.w3.org/1999/xlink}href',
self.opsonlineresource)
self.processServiceCapabilities(capetree)
rootlayerelem = capetree.find(
'{http://www.opengis.net/wms}Capability/{http://www.opengis.net/wms}Layer'
)
for epsgcode in self.allowedepsgcodes:
rootlayercrs = ElementTree.Element('SRS')
rootlayercrs.text = epsgcode.upper()
rootlayerelem.append(rootlayercrs)
for layer in self.mapfactory.ordered_layers:
layerproj = Projection(layer.srs)
layername = ElementTree.Element('Name')
layername.text = layer.name
env = layer.envelope()
llp = layerproj.inverse(Coord(env.minx, env.miny))
urp = layerproj.inverse(Coord(env.maxx, env.maxy))
latlonbb = ElementTree.Element('LatLonBoundingBox')
latlonbb.set('minx', str(llp.x))
latlonbb.set('miny', str(llp.y))
latlonbb.set('maxx', str(urp.x))
latlonbb.set('maxy', str(urp.y))
layerbbox = ElementTree.Element('BoundingBox')
layerbbox.set('SRS', layerproj.epsgstring())
layerbbox.set('minx', str(env.minx))
layerbbox.set('miny', str(env.miny))
layerbbox.set('maxx', str(env.maxx))
layerbbox.set('maxy', str(env.maxy))
layere = ElementTree.Element('Layer')
layere.append(layername)
if layer.title:
layertitle = ElementTree.Element('Title')
layertitle.text = layer.title
layere.append(layertitle)
if layer.abstract:
layerabstract = ElementTree.Element('Abstract')
layerabstract.text = layer.abstract
layere.append(layerabstract)
if layer.queryable:
layere.set('queryable', '1')
layere.append(latlonbb)
layere.append(layerbbox)
if len(layer.wmsextrastyles) > 0:
for extrastyle in [layer.wmsdefaultstyle] + list(
layer.wmsextrastyles):
style = ElementTree.Element('Style')
stylename = ElementTree.Element('Name')
stylename.text = extrastyle
styletitle = ElementTree.Element('Title')
styletitle.text = extrastyle
style.append(stylename)
style.append(styletitle)
layere.append(style)
rootlayerelem.append(layere)
self.capabilities = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>\n' + ElementTree.tostring(
capetree)
response = Response('application/vnd.ogc.wms_xml', self.capabilities)
return response