57 lines
1.8 KiB
Python
57 lines
1.8 KiB
Python
# -*- test-case-name: openid.test.test_services -*-
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from openid.yadis.filters import mkFilter
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from openid.yadis.discover import discover, DiscoveryFailure
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from openid.yadis.etxrd import parseXRDS, iterServices, XRDSError
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def getServiceEndpoints(input_url, flt=None):
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"""Perform the Yadis protocol on the input URL and return an
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iterable of resulting endpoint objects.
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@param flt: A filter object or something that is convertable to
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a filter object (using mkFilter) that will be used to generate
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endpoint objects. This defaults to generating BasicEndpoint
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objects.
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@param input_url: The URL on which to perform the Yadis protocol
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@return: The normalized identity URL and an iterable of endpoint
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objects generated by the filter function.
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@rtype: (str, [endpoint])
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@raises DiscoveryFailure: when Yadis fails to obtain an XRDS document.
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"""
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result = discover(input_url)
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try:
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endpoints = applyFilter(result.normalized_uri, result.response_text,
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flt)
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except XRDSError as err:
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raise DiscoveryFailure(str(err), None)
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return (result.normalized_uri, endpoints)
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def applyFilter(normalized_uri, xrd_data, flt=None):
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"""Generate an iterable of endpoint objects given this input data,
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presumably from the result of performing the Yadis protocol.
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@param normalized_uri: The input URL, after following redirects,
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as in the Yadis protocol.
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@param xrd_data: The XML text the XRDS file fetched from the
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normalized URI.
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@type xrd_data: str
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"""
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flt = mkFilter(flt)
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et = parseXRDS(xrd_data)
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endpoints = []
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for service_element in iterServices(et):
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endpoints.extend(
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flt.getServiceEndpoints(normalized_uri, service_element))
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return endpoints
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