diff flys-client/src/main/java/de/intevation/flys/client/server/was/Assertion.java @ 2943:7683d4e43afa

Implement class representation of a Web Authentication Service (WAS) request and response. If the authentication is successful the WAS responses with a base64 encoded Security Assertion Markup Language. The current implementation of the saml response simplifies the protocol and misses validation. flys-client/trunk@4909 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Bjoern Ricks <bjoern.ricks@intevation.de>
date Tue, 10 Jul 2012 10:49:18 +0000
parents
children 0889ec33249c
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line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-client/src/main/java/de/intevation/flys/client/server/was/Assertion.java	Tue Jul 10 10:49:18 2012 +0000
@@ -0,0 +1,178 @@
+package de.intevation.flys.client.server.was;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Iterator;
+import java.util.Date;
+import java.util.List;
+import java.util.LinkedList;
+
+import org.apache.log4j.Logger;
+
+import org.jdom.Element;
+
+public class Assertion {
+
+    private static Logger logger = Logger.getLogger(Assertion.class);
+
+    private Element assertion;
+    private LinkedList<String> roles;
+    private String assertion_id;
+    private String user_id;
+    private String name_id;
+    private String group_id;
+    private String group_name;
+    private Date notbefore;
+    private Date notonorafter;
+    private Signature signature;
+
+    private static final String ATTR_CONT_USER_ID =
+        "urn:conterra:names:sdi-suite:policy:attribute:user-id";
+    private static final String ATTR_CONT_GROUP_ID =
+        "urn:conterra:names:sdi-suite:policy:attribute:group-id";
+    private static final String ATTR_CONT_GROUP_NAME =
+        "urn:conterra:names:sdi-suite:policy:attribute:group-name";
+    private static final String ATTR_CONT_ROLE =
+        "urn:conterra:names:sdi-suite:policy:attribute:role";
+
+
+    public Assertion(Element assertion) {
+        this.assertion = assertion;
+        this.roles = new LinkedList<String>();
+
+        this.assertion_id = assertion.getAttributeValue("AssertionID");
+
+        this.parseContition();
+        this.parseAttributeStatement();
+    }
+
+    private void parseContition() {
+        Element condition = this.assertion.getChild("Conditions",
+                Namespaces.SAML_NS_ASSERT);
+        if (condition != null) {
+            SimpleDateFormat dateformat = new SimpleDateFormat();
+            // format should be "yyyy-MM-dd'T'HH:mm:ss.SSSXXX" but that's only
+            // available in java 7+
+            dateformat.applyPattern("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
+            String from = condition.getAttributeValue("NotBefore");
+            if (from != null) {
+                try {
+                    this.notbefore = dateformat.parse(from);
+                }
+                catch(ParseException e) {
+                    logger.error("Unknown datetime format for Condition "
+                            "NotBefore " + from);
+                }
+            }
+
+            String until = condition.getAttributeValue("NotOnOrAfter");
+            if (until != null) {
+                try {
+                    this.notonorafter = dateformat.parse(until);
+                }
+                catch(ParseException e) {
+                    logger.error("Unknown datetime format for Condition "
+                            "NotOnOrAfter " + until);
+                }
+            }
+        }
+    }
+
+    private void parseAttributeStatement() {
+        Element attrstatement = this.assertion.getChild("AttributeStatement",
+                Namespaces.SAML_NS_ASSERT);
+        if (attrstatement != null) {
+
+            Element subject = attrstatement.getChild("Subject",
+                    Namespaces.SAML_NS_ASSERT);
+            if (subject != null) {
+                this.name_id = subject.getChildText("NameIdentifier",
+                        Namespaces.SAML_NS_ASSERT);
+            }
+
+            List attributes = attrstatement.getChildren("Attribute",
+                    Namespaces.SAML_NS_ASSERT);
+            for(Iterator i = attributes.iterator(); i.hasNext();) {
+                Element attr = (Element)i.next();
+                String attrname = attr.getAttributeValue("AttributeName");
+                if (attrname.equals(ATTR_CONT_USER_ID)) {
+                    this.user_id = this.getAttributeValue(attr);
+                }
+                else if (attrname.equals(ATTR_CONT_GROUP_ID)) {
+                    this.group_id = this.getAttributeValue(attr);
+                }
+                else if (attrname.equals(ATTR_CONT_GROUP_NAME)) {
+                    this.group_name = this.getAttributeValue(attr);
+                }
+                else if (attrname.equals(ATTR_CONT_ROLE)) {
+                    List roles = attr.getChildren("AttributeValue",
+                            Namespaces.SAML_NS_ASSERT);
+                    for(Iterator j = roles.iterator(); j.hasNext();) {
+                        Element role = (Element)j.next();
+                        this.roles.add(role.getText());
+                    }
+                }
+                else {
+                    logger.debug("Unknown AttributeName " + attrname +
+                            " found while parsing AttributeStatement.");
+                }
+            }
+        }
+    }
+
+    private String getAttributeValue(Element attr) {
+        return attr.getChildText("AttributeValue", Namespaces.SAML_NS_ASSERT);
+    }
+
+    public List<String> getRoles() {
+        return this.roles;
+    }
+
+    public Boolean isValid() {
+        // TODO:
+        // check signature digest
+        // check signature value
+        // check signature cert
+        return false;
+    }
+
+    public Signature getSiganture() {
+        if (this.signature == null) {
+            Element signature = this.assertion.getChild("Signature",
+                    Namespaces.XML_SIG_NS);
+            if (signature != null) {
+                this.signature = new Signature(signature);
+            }
+        }
+        return this.signature;
+    }
+
+    public String getUserID() {
+        return this.user_id;
+    }
+
+    public String getNameID() {
+        return this.name_id;
+    }
+
+    public String getGroupID() {
+        return this.group_id;
+    }
+
+    public String getGroupName() {
+        return this.group_name;
+    }
+
+    public String getID() {
+        return this.assertion_id;
+    }
+
+    public Date getFrom() {
+        return this.notbefore;
+    }
+
+    public Date getUntil() {
+        return this.notonorafter;
+    }
+}
+// vim: set fileencoding=utf-8 ts=4 sw=4 et si tw=80:

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