diff options
Diffstat (limited to 'utils/src/main/java/at/gv/egiz/slbinding')
7 files changed, 590 insertions, 0 deletions
diff --git a/utils/src/main/java/at/gv/egiz/slbinding/NamespaceContextCallback.java b/utils/src/main/java/at/gv/egiz/slbinding/NamespaceContextCallback.java new file mode 100644 index 00000000..08c075ac --- /dev/null +++ b/utils/src/main/java/at/gv/egiz/slbinding/NamespaceContextCallback.java @@ -0,0 +1,41 @@ +/* +* Copyright 2008 Federal Chancellery Austria and +* Graz University of Technology +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ +/* + * To change this template, choose Tools | Templates + * and open the template in the editor. + */ +package at.gv.egiz.slbinding; + +import javax.xml.namespace.NamespaceContext; + +/** + * + * @author clemens + */ +public interface NamespaceContextCallback { + + /** + * preserves the current namespace context from the XMLEventFilter + * @param filter + */ + void preserveNamespaceContext(RedirectEventFilter filter); + + /** + * @return the namespace context if preserveNamespaceContext() was called on this object before, null otherwise + */ + NamespaceContext getNamespaceContext(); +} diff --git a/utils/src/main/java/at/gv/egiz/slbinding/RedirectCallback.java b/utils/src/main/java/at/gv/egiz/slbinding/RedirectCallback.java new file mode 100644 index 00000000..80fb56dc --- /dev/null +++ b/utils/src/main/java/at/gv/egiz/slbinding/RedirectCallback.java @@ -0,0 +1,42 @@ +/* +* Copyright 2008 Federal Chancellery Austria and +* Graz University of Technology +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ +/* + * To change this template, choose Tools | Templates + * and open the template in the editor. + */ +package at.gv.egiz.slbinding; + +import java.io.ByteArrayOutputStream; +import javax.xml.stream.XMLStreamException; + +/** + * + * The beforeUnmarshal(Unmarshaller um, Object parent) methods don't allow to pass the RedirectEventFilter, + * so we implement a callback interface common to all generated classes + * @author clemens + */ +public interface RedirectCallback { + + void enableRedirect(RedirectEventFilter filter) throws XMLStreamException; + + void disableRedirect(RedirectEventFilter filter) throws XMLStreamException; + + /** + * @return the redirected stream or null if enableRedirect() was not called before + */ + ByteArrayOutputStream getRedirectedStream(); +} diff --git a/utils/src/main/java/at/gv/egiz/slbinding/RedirectEventFilter.java b/utils/src/main/java/at/gv/egiz/slbinding/RedirectEventFilter.java new file mode 100644 index 00000000..d2a7fb30 --- /dev/null +++ b/utils/src/main/java/at/gv/egiz/slbinding/RedirectEventFilter.java @@ -0,0 +1,259 @@ +/* +* Copyright 2008 Federal Chancellery Austria and +* Graz University of Technology +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ +/* + * To change this template, choose Tools | Templates + * and open the template in the editor. + */ +package at.gv.egiz.slbinding; + +import java.io.OutputStream; +import java.util.Set; +import javax.xml.namespace.NamespaceContext; +import javax.xml.namespace.QName; +import javax.xml.stream.EventFilter; +import javax.xml.stream.XMLEventWriter; +import javax.xml.stream.XMLOutputFactory; +import javax.xml.stream.XMLStreamConstants; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.events.XMLEvent; +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; + +public class RedirectEventFilter implements EventFilter { + + public static final String DEFAULT_ENCODING = "UTF-8"; + private static Log log = LogFactory.getLog(RedirectEventFilter.class); + protected XMLEventWriter redirectWriter = null; + protected Set<QName> redirectTriggers = null; + private int depth = -1; + protected NamespaceContext currentNamespaceContext = null; + + /** + * Event redirection is disabled, set a redirect stream to enable. + */ + public RedirectEventFilter() { + redirectWriter = null; + // redirectTriggers = null; + } + + /** + * + * @param redirectStream + * if null, no events are redirected + * @param redirectTriggers + * if null, all events are redirected + */ + public RedirectEventFilter(OutputStream redirectStream, String encoding) + throws XMLStreamException { // , List<QName> redirectTriggers + if (redirectStream != null) { + XMLOutputFactory outputFactory = XMLOutputFactory.newInstance(); + if (encoding == null) { + encoding = DEFAULT_ENCODING; + } + this.redirectWriter = outputFactory.createXMLEventWriter(redirectStream, + encoding); + } + // this.redirectTriggers = redirectTriggers; + } + + /** + * All startElement events occuring in the redirectTriggers list will trigger + * redirection of the entire (sub-)fragment. + * + * @param event + * @return false if an event is redirected + */ + @Override + public boolean accept(XMLEvent event) { + int eventType = event.getEventType(); + + if (eventType == XMLStreamConstants.START_ELEMENT) { + currentNamespaceContext = event.asStartElement().getNamespaceContext(); + } + if (redirectWriter == null) { + return true; + } + if (eventType == XMLStreamConstants.START_ELEMENT) { + if (depth >= 0 || triggersRedirect(event.asStartElement().getName())) { + depth++; + } + } else if (eventType == XMLStreamConstants.END_ELEMENT) { + if (depth >= 0 && --depth < 0) { + // redirect the end element of the trigger, + // but do not redirect the end element of the calling type + if (redirectTriggers != null) { + redirectEvent(event); + return false; + } + } + } + if (depth >= 0) { //|| (depth == 0 && redirectTriggers == null)) { + redirectEvent(event); + return false; + } + return true; // depth < 0; + +// switch (event.getEventType()) { +// case XMLStreamConstants.START_ELEMENT: +// StartElement startElt = event.asStartElement(); +// if (depth >= 0 || triggersRedirect(startElt.getName())) { +// depth++; +// } +// // namespace context changes only on start elements +// // (first event might not be startElement, but we don't need CDATA's +// // namespace context) +// currentNamespaceContext = startElt.getNamespaceContext(); +// break; +// case XMLStreamConstants.END_ELEMENT: +// // if depth switches from positive to negative, this is the closing tag of +// // the trigger (redirect as well!) +// if (depth >= 0 && --depth < 0) { +// redirectEvent(event); +// return false; +// } +// break; +// } +// if (depth >= 0) { +// redirectEvent(event); +// return false; +// } +// return true; // depth < 0; + } + + /** + * @param startElt + * @return true if the set of triggers contains startElement + * (or no triggers are registered, i.e. everything is redirected) + */ + private boolean triggersRedirect(QName startElement) { + if (redirectTriggers != null) { + return redirectTriggers.contains(startElement); + } + return true; + } + + private void redirectEvent(XMLEvent event) { + try { + if (log.isTraceEnabled()) { + log.trace("redirecting StAX event " + event); + } + redirectWriter.add(event); + } catch (XMLStreamException ex) { + ex.printStackTrace(); + } + } + + /** + * Enable/disable redirection of <em>all</em> events from now on. + * The redirected events will be UTF-8 encoded and written to the stream. + * + * @param redirectstream + * if null, redirection is disabled + */ + public void setRedirectStream(OutputStream redirectStream) throws XMLStreamException { + setRedirectStream(redirectStream, DEFAULT_ENCODING, null); + } + + /** + * Enable/disable redirection of <em>all</em> events from now on. + * + * @param redirectStream if null, redirection is disabled + * @param encoding The encoding for the redirect stream + * @throws javax.xml.stream.XMLStreamException + */ + public void setRedirectStream(OutputStream redirectStream, String encoding) throws XMLStreamException { + setRedirectStream(redirectStream, encoding, null); + } + + /** + * Enable/disable redirection of all (child) elements contained in redirect triggers. + * The redirected events will be UTF-8 encoded and written to the stream. + * + * @param redirectstream + * if null, redirection is disabled + * @param redirectTriggers elements that trigger the redirection + */ + public void setRedirectStream(OutputStream redirectStream, Set<QName> redirectTriggers) throws XMLStreamException { + setRedirectStream(redirectStream, DEFAULT_ENCODING, redirectTriggers); + } + + /** + * Enable/disable redirection of all (child) elements contained in redirect triggers. + * + * @param redirectstream + * if null, redirection is disabled + * @param encoding The encoding for the redirect stream + * @param redirectTriggers elements that trigger the redirection + */ + public void setRedirectStream(OutputStream redirectStream, String encoding, Set<QName> redirectTriggers) throws XMLStreamException { + if (redirectStream != null) { + XMLOutputFactory outputFactory = XMLOutputFactory.newInstance(); + if (encoding == null) { + encoding = DEFAULT_ENCODING; + } + redirectWriter = outputFactory.createXMLEventWriter(redirectStream, + encoding); + if (redirectTriggers == null) { + // start redirecting + depth = 0; + } + this.redirectTriggers = redirectTriggers; + } else { + redirectWriter = null; + this.redirectTriggers = null; + } + } + + /** + * Enable/disable redirection of fragments (defined by elements in + * redirectTriggers) + * + * @param redirectStream + * if null, redirection is disabled + * @param redirectTriggers + * All startElement events occuring in this list will trigger + * redirection of the entire fragment. If null, all events are + * redirected + */ + // public void setRedirectStream(OutputStream redirectStream, List<QName> + // redirectTriggers) throws XMLStreamException { + // if (redirectStream != null) { + // XMLOutputFactory outputFactory = XMLOutputFactory.newInstance(); + // redirectWriter = outputFactory.createXMLEventWriter(redirectStream); + // } else { + // redirectWriter = null; + // } + // this.redirectTriggers = (redirectStream == null) ? null : redirectTriggers; + // } + /** + * flushes the internal EventWriter + * + * @throws javax.xml.stream.XMLStreamException + */ + public void flushRedirectStream() throws XMLStreamException { + redirectWriter.flush(); + } + + /** + * the namespaceContext of the last startelement event read + * + * @return + */ + public NamespaceContext getCurrentNamespaceContext() { + return currentNamespaceContext; + } +} diff --git a/utils/src/main/java/at/gv/egiz/slbinding/RedirectUnmarshallerListener.java b/utils/src/main/java/at/gv/egiz/slbinding/RedirectUnmarshallerListener.java new file mode 100644 index 00000000..08c12146 --- /dev/null +++ b/utils/src/main/java/at/gv/egiz/slbinding/RedirectUnmarshallerListener.java @@ -0,0 +1,68 @@ +/* +* Copyright 2008 Federal Chancellery Austria and +* Graz University of Technology +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ +/* + * To change this template, choose Tools | Templates + * and open the template in the editor. + */ +package at.gv.egiz.slbinding; + +import javax.xml.bind.Unmarshaller; +import javax.xml.stream.XMLStreamException; + +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; + +/** + * Enables event redirection before marshalling a target of type RedirectCallback. + * It is up to the target class to implement the redirection (default implementation in RedirectCallback). + * Disables event redirection after marshalling (when the closing tag occurs). + * @author clemens + */ +public class RedirectUnmarshallerListener extends Unmarshaller.Listener { + + private static Log log = LogFactory.getLog(RedirectUnmarshallerListener.class); + protected RedirectEventFilter eventFilter; + + public RedirectUnmarshallerListener(RedirectEventFilter eventFilter) { + this.eventFilter = eventFilter; + } + + @Override + public void beforeUnmarshal(Object target, Object parent) { + if (target instanceof RedirectCallback) { + try { + ((RedirectCallback) target).enableRedirect(eventFilter); + } catch (XMLStreamException ex) { + log.error("failed to enable event redirection for " + target.getClass().getName() + ": " + ex.getMessage(), ex); + } + } + if (target instanceof NamespaceContextCallback) { + ((NamespaceContextCallback) target).preserveNamespaceContext(eventFilter); + } + } + + @Override + public void afterUnmarshal(Object target, Object parent) { + if (target instanceof RedirectCallback) { + try { + ((RedirectCallback) target).disableRedirect(eventFilter); + } catch (XMLStreamException ex) { + log.error("failed to disable event redirection for " + target.getClass().getName() + ": " + ex.getMessage(), ex); + } + } + } +} diff --git a/utils/src/main/java/at/gv/egiz/slbinding/impl/SignatureLocationType.java b/utils/src/main/java/at/gv/egiz/slbinding/impl/SignatureLocationType.java new file mode 100644 index 00000000..494e6972 --- /dev/null +++ b/utils/src/main/java/at/gv/egiz/slbinding/impl/SignatureLocationType.java @@ -0,0 +1,50 @@ +/* +* Copyright 2008 Federal Chancellery Austria and +* Graz University of Technology +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ +/* + * To change this template, choose Tools | Templates + * and open the template in the editor. + */ +package at.gv.egiz.slbinding.impl; + +import at.gv.egiz.slbinding.*; +import javax.xml.bind.annotation.XmlTransient; +import javax.xml.namespace.NamespaceContext; +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; + +/** + * + * @author clemens + */ +public class SignatureLocationType extends at.buergerkarte.namespaces.securitylayer._1.SignatureLocationType implements NamespaceContextCallback { + + @XmlTransient + private static Log log = LogFactory.getLog(SignatureLocationType.class); + @XmlTransient + protected NamespaceContext namespaceContext; + + @Override + public NamespaceContext getNamespaceContext() { + return namespaceContext; + } + + @Override + public void preserveNamespaceContext(RedirectEventFilter filter) { + log.debug("preserving namespace context for SignatureLocationType"); + namespaceContext = filter.getCurrentNamespaceContext(); + } +} diff --git a/utils/src/main/java/at/gv/egiz/slbinding/impl/TransformsInfoType.java b/utils/src/main/java/at/gv/egiz/slbinding/impl/TransformsInfoType.java new file mode 100644 index 00000000..b4e988f0 --- /dev/null +++ b/utils/src/main/java/at/gv/egiz/slbinding/impl/TransformsInfoType.java @@ -0,0 +1,70 @@ +/* +* Copyright 2008 Federal Chancellery Austria and +* Graz University of Technology +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ +/* + * To change this template, choose Tools | Templates + * and open the template in the editor. + */ +package at.gv.egiz.slbinding.impl; + +import at.gv.egiz.slbinding.*; +import java.io.ByteArrayOutputStream; +import java.util.HashSet; +import java.util.Set; +import javax.xml.bind.annotation.XmlTransient; +import javax.xml.namespace.QName; +import javax.xml.stream.XMLStreamException; +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; + +/** + * + * @author clemens + */ +public class TransformsInfoType extends at.buergerkarte.namespaces.securitylayer._1.TransformsInfoType implements RedirectCallback { + + @XmlTransient + private static Log log = LogFactory.getLog(TransformsInfoType.class); + @XmlTransient + private static final Set<QName> redirectTriggers = initRedirectTriggers(); + @XmlTransient + protected ByteArrayOutputStream redirectOS = null; + + private static Set<QName> initRedirectTriggers() { + HashSet<QName> dsigTransforms = new HashSet<QName>(); + dsigTransforms.add(new QName("http://www.w3.org/2000/09/xmldsig#", "Transforms")); + return dsigTransforms; + } + + @Override + public void enableRedirect(RedirectEventFilter filter) throws XMLStreamException { + log.debug("enabling event redirection for TransformsInfoType"); + redirectOS = new ByteArrayOutputStream(); + filter.setRedirectStream(redirectOS, redirectTriggers); + } + + @Override + public void disableRedirect(RedirectEventFilter filter) throws XMLStreamException { + log.debug("disabling event redirection for TransformsInfoType"); + filter.flushRedirectStream(); + filter.setRedirectStream(null); + } + + @Override + public ByteArrayOutputStream getRedirectedStream() { + return redirectOS; + } +} diff --git a/utils/src/main/java/at/gv/egiz/slbinding/impl/XMLContentType.java b/utils/src/main/java/at/gv/egiz/slbinding/impl/XMLContentType.java new file mode 100644 index 00000000..c32542aa --- /dev/null +++ b/utils/src/main/java/at/gv/egiz/slbinding/impl/XMLContentType.java @@ -0,0 +1,60 @@ +/* +* Copyright 2008 Federal Chancellery Austria and +* Graz University of Technology +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ +/* + * To change this template, choose Tools | Templates + * and open the template in the editor. + */ +package at.gv.egiz.slbinding.impl; + +import at.gv.egiz.slbinding.RedirectCallback; +import at.gv.egiz.slbinding.RedirectEventFilter; +import java.io.ByteArrayOutputStream; +import javax.xml.bind.annotation.XmlTransient; +import javax.xml.stream.XMLStreamException; +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; + +/** + * + * @author clemens + */ +public class XMLContentType extends at.buergerkarte.namespaces.securitylayer._1.XMLContentType implements RedirectCallback { + + @XmlTransient + private static Log log = LogFactory.getLog(TransformsInfoType.class); + @XmlTransient + protected ByteArrayOutputStream redirectOS = null; + + @Override + public void enableRedirect(RedirectEventFilter filter) throws XMLStreamException { + log.debug("enabling event redirection for XMLContentType"); + redirectOS = new ByteArrayOutputStream(); + filter.setRedirectStream(redirectOS); + } + + @Override + public void disableRedirect(RedirectEventFilter filter) throws XMLStreamException { + log.debug("disabling event redirection for XMLContentType"); + filter.flushRedirectStream(); + filter.setRedirectStream(null); + } + + @Override + public ByteArrayOutputStream getRedirectedStream() { + return redirectOS; + } +} |