Package openid :: Package yadis :: Module etxrd

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Module etxrd

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ElementTree interface to an XRD document.

Functions

parseXRDS(text)
Parse the given text as an XRDS document.

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nsTag(ns, t)

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mkXRDTag(t)
basestring -> basestring

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isXRDS(xrd_tree)
Is this document an XRDS document?

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getYadisXRD(xrd_tree)
Return the XRD element that should contain the Yadis services

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unicode or None

getCanonicalID(iname, xrd_tree)
Return the CanonicalID from this XRDS document.

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getPriorityStrict(element)
Get the priority of this element.

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getPriority(element)
Get the priority of this element

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prioSort(elements)
Sort a list of elements that have priority attributes

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iterServices(xrd_tree)
Return an iterable over the Service elements in the Yadis XRD

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expandService(service_element)
Take a service element and expand it into an iterator of: ([type_uri], uri, service_element)

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expandServices(service_elements)
Take a sorted iterator of service elements and expand it into a sorted iterator of: ([type_uri], uri, service_element)

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Function Details

parseXRDS(text)

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Parse the given text as an XRDS document.

Returns:

ElementTree containing an XRDS document

Raises:

XRDSError - When there is a parse error or the document does not contain an XRDS.

mkXRDTag(t)

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basestring -> basestring

Create a tag name in the XRD 2.0 XML namespace suitable for using with ElementTree

getCanonicalID(iname, xrd_tree)

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Return the CanonicalID from this XRDS document.

Parameters:

iname (unicode) - the XRI being resolved.
xrd_tree (ElementTree) - The XRDS output from the resolver.

Returns: unicode or None

The XRI CanonicalID or None.

getPriorityStrict(element)

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Get the priority of this element.

Raises ValueError if the value of the priority is invalid. If no priority is specified, it returns a value that compares greater than any other value.

getPriority(element)

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Get the priority of this element

Returns Max if no priority is specified or the priority value is invalid.

iterServices(xrd_tree)

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Return an iterable over the Service elements in the Yadis XRD

sorted by priority

expandServices(service_elements)

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Take a sorted iterator of service elements and expand it into a sorted iterator of: ([type_uri], uri, service_element)

There may be more than one item in the resulting list for each service element if there is more than one URI or type for a service, but each triple will be unique.

If there is no URI or Type for a Service element, it will not appear in the result.