OpenSAML user discussion

[Jean-Noel Colin <>]

Scott

I'm sorry to disturb you again, but I'm trying to build a SAMLAssertion 
from a String, and I can't get it to work.
The String below (except the <?xml version="1.0" encoding="UTF-8"?>) 
part is simply the output of the SAMLAssertion.toString() method. This 
is received by a WebService consumer, and I'd need to build a 
SAMLAssertion object from that String.

I tried building from an Element:

                        InputSource is = new InputSource(new 
StringReader(token));
			Document doc = 
DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(is);
                        SAMLAssertion assertion = new 
SAMLAssertion(doc.getDocumentElement());                  

But I get an exception:

Exception in thread "main" java.lang.IllegalArgumentException: local 
part cannot be "null" when creating a QName
        at javax.xml.namespace.QName.<init>(QName.java:164)
        at javax.xml.namespace.QName.<init>(QName.java:113)
        at org.opensaml.SAMLStatement.getInstance(Unknown Source)
        at org.opensaml.SAMLAssertion.fromDOM(Unknown Source)
        at org.opensaml.SAMLAssertion.<init>(Unknown Source)
        at net.iclass.sts.TestWS.main(TestWS.java:55)

Would you have any idea why this fails? Would you suggest another way?

Best regards

Jean-Noel Colin

<?xml version="1.0" encoding="UTF-8"?><Assertion 
xmlns="urn:oasis:names:tc:SAML:1.0:assertion" 
xmlns:saml="urn:oasis:names:tc:SAML:1.0:assertion" 
xmlns:samlp="urn:oasis:names:tc:SAML:1.0:protocol" 
xmlns:xsd="http://www.w3.org/2001/XMLSchema"; 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
AssertionID="_9d23ba8aef6f24ad325bdb9022751cc5" 
IssueInstant="2005-10-06T18:00:41.022Z" 
Issuer="urn:iclass:services:naivests" MajorVersion="1" 
MinorVersion="1"><Conditions NotBefore="2005-10-06T18:00:41.022Z" 
NotOnOrAfter="2005-10-06T19:00:41.022Z"></Conditions><AuthenticationStatement 
AuthenticationInstant="2005-10-06T18:00:41.022Z" 
AuthenticationMethod="urn:oasis:names:tc:SAML:1.0:am:password"><Subject><NameIdentifier 
Format="urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified" 
NameQualifier="ItalDATA 
MLE">Jean-Noel</NameIdentifier><SubjectConfirmation><ConfirmationMethod>urn:oasis:names:tc:SAML:1.0:cm:sender-vouches</ConfirmationMethod></SubjectConfirmation></Subject></AuthenticationStatement><AttributeStatement><Subject><NameIdentifier 
Format="urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified" 
NameQualifier="ItalDATA 
MLE">Jean-Noel</NameIdentifier><SubjectConfirmation><ConfirmationMethod>urn:oasis:names:tc:SAML:1.0:cm:sender-vouches</ConfirmationMethod></SubjectConfirmation></Subject><Attribute 
AttributeName="roles" 
AttributeNamespace="urn:iclass:names"><AttributeValue>Teacher</AttributeValue><AttributeValue>Administrator</AttributeValue></Attribute></AttributeStatement><ds:Signature 
xmlns:ds="http://www.w3.org/2000/09/xmldsig#";>
<ds:SignedInfo>
<ds:CanonicalizationMethod 
Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#";></ds:CanonicalizationMethod>
<ds:SignatureMethod 
Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1";></ds:SignatureMethod>
<ds:Reference URI="#_9d23ba8aef6f24ad325bdb9022751cc5">
<ds:Transforms>
<ds:Transform 
Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature";></ds:Transform>
<ds:Transform 
Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#";><ec:InclusiveNamespaces 
xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#"; PrefixList="code ds 
kind rw saml samlp typens #default xsd 
xsi"></ec:InclusiveNamespaces></ds:Transform>
</ds:Transforms>
<ds:DigestMethod 
Algorithm="http://www.w3.org/2000/09/xmldsig#sha1";></ds:DigestMethod>
<ds:DigestValue>4/WP7GgeG2FP6DAIhGoIuMkFGCU=</ds:DigestValue>
</ds:Reference>
</ds:SignedInfo>
<ds:SignatureValue>
bl1hhME9CrCS27ssA+Y+VpwaqamSzW8b2zsGmPzIf+mWuy1JThySEmb1W9MkGMcLLTd1I8aNNBf4
KbDbUPFaxLq2PwvMUY794UjQ7T8bHmorC8G0+DWZGU90j0CLbSHYuKEAPpBISxKaVk0N5it0XMpO
T+DPSkT7NbH4jZGJkhE=
</ds:SignatureValue>
<ds:KeyInfo>
<ds:X509Data>
<ds:X509Certificate>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</ds:X509Certificate>
</ds:X509Data>
</ds:KeyInfo></ds:Signature></Assertion>