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Diffstat (limited to 'bkucommon/src/main/java/at/gv/egiz/bku/binding/HTTPBindingProcessor.java')
-rw-r--r--bkucommon/src/main/java/at/gv/egiz/bku/binding/HTTPBindingProcessor.java1634
1 files changed, 816 insertions, 818 deletions
diff --git a/bkucommon/src/main/java/at/gv/egiz/bku/binding/HTTPBindingProcessor.java b/bkucommon/src/main/java/at/gv/egiz/bku/binding/HTTPBindingProcessor.java
index b79f7d55..19f22126 100644
--- a/bkucommon/src/main/java/at/gv/egiz/bku/binding/HTTPBindingProcessor.java
+++ b/bkucommon/src/main/java/at/gv/egiz/bku/binding/HTTPBindingProcessor.java
@@ -1,820 +1,818 @@
/*
-* 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.
-*/
-package at.gv.egiz.bku.binding;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
-import java.io.OutputStreamWriter;
-import java.io.Reader;
-import java.security.cert.X509Certificate;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Locale;
-import java.util.Map;
-
-import javax.net.ssl.SSLHandshakeException;
-import javax.xml.transform.Transformer;
-import javax.xml.transform.TransformerException;
-import javax.xml.transform.TransformerFactory;
-import javax.xml.transform.URIResolver;
-import javax.xml.transform.stream.StreamResult;
-import javax.xml.transform.stream.StreamSource;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-
-import at.gv.egiz.bku.slcommands.SLCommand;
-import at.gv.egiz.bku.slcommands.SLCommandContext;
-import at.gv.egiz.bku.slcommands.SLCommandFactory;
-import at.gv.egiz.bku.slcommands.SLCommandInvoker;
-import at.gv.egiz.bku.slcommands.SLResult;
-import at.gv.egiz.bku.slcommands.SLSourceContext;
-import at.gv.egiz.bku.slcommands.SLTargetContext;
-import at.gv.egiz.bku.slcommands.impl.ErrorResultImpl;
-import at.gv.egiz.bku.slexceptions.SLBindingException;
-import at.gv.egiz.bku.slexceptions.SLCanceledException;
-import at.gv.egiz.bku.slexceptions.SLException;
-import at.gv.egiz.bku.slexceptions.SLRuntimeException;
-import at.gv.egiz.bku.utils.StreamUtil;
-import at.gv.egiz.bku.utils.binding.Protocol;
-import at.gv.egiz.bku.utils.urldereferencer.FormDataURLSupplier;
-import at.gv.egiz.bku.utils.urldereferencer.SimpleFormDataContextImpl;
-import at.gv.egiz.bku.utils.urldereferencer.StreamData;
-import at.gv.egiz.bku.utils.urldereferencer.URIResolverAdapter;
-import at.gv.egiz.bku.utils.urldereferencer.URLDereferencer;
-import at.gv.egiz.bku.utils.urldereferencer.URLDereferencerContext;
-import at.gv.egiz.stal.QuitRequest;
-import at.gv.egiz.stal.STALRequest;
-
-/**
- * Class performing the HTTP binding as defined by the CCE specification.
- * Currently a huge monolithic class.
- * @TODO refactor
- */
-@SuppressWarnings("unchecked")
-public class HTTPBindingProcessor extends AbstractBindingProcessor implements
- FormDataURLSupplier {
-
- private static Log log = LogFactory.getLog(HTTPBindingProcessor.class);
-
- private static enum State {
- INIT, PROCESS, DATAURL, TRANSFORM, FINISHED
- };
-
- public final static Collection<String> XML_REQ_TRANSFER_ENCODING = Arrays
- .asList(new String[] { "binary" });
-
- /**
- * Defines the maximum number of dataurl connects that are allowed within a
- * single SL Request processing.
- */
- protected static int MAX_DATAURL_HOPS = 10;
-
- protected static String XML_MIME_TYPE = "text/xml";
- protected static String BINARY_MIME_TYPE = "application/octet-stream";
-
- /**
- * If null everything is ok and the result is taken from the command invoker.
- */
- protected SLException bindingProcessorError;
- protected SLCommandInvoker commandInvoker;
- protected DataUrlResponse dataUrlResponse;
- protected Map<String, String> headerMap = Collections.EMPTY_MAP;
- protected SLCommand slCommand;
- protected Map<String, FormParameter> formParameterMap = new HashMap<String, FormParameter>();
- protected SLSourceContext srcContex = new SLSourceContext();
- protected SLTargetContext targetContext = new SLTargetContext();
- protected Protocol protocol;
- protected State currentState = State.INIT;
- protected Transformer transformer = null;
- protected String resultContentType = null;
- protected SLResult slResult = null;
- protected int responseCode = 200;
- protected Map<String, String> responseHeaders = Collections.EMPTY_MAP;
- protected Locale locale = Locale.getDefault();
-
- /**
- *
- * @param id
- * may be null. In this case a new session id will be created.
- * @param cmdInvoker
- * must not be null;
- */
- public HTTPBindingProcessor(String id, SLCommandInvoker cmdInvoker,
- Protocol protocol) {
- super(id);
- if ((protocol != Protocol.HTTP) && (protocol != Protocol.HTTPS)) {
- throw new SLRuntimeException("Protocol not supported: " + protocol);
- }
- if (cmdInvoker == null) {
- throw new NullPointerException("Commandinvoker cannot be set to null");
- }
- commandInvoker = cmdInvoker;
- this.protocol = protocol;
- srcContex.setSourceProtocol(protocol);
- srcContex.setSourceIsDataURL(false);
- }
-
- //----------------------------------------------------------------------------
- // ----------- BEGIN CONVENIENCE METHODS -----------
-
- protected void sendSTALQuit() {
- log.info("Sending QUIT command to STAL");
- List<STALRequest> quit = new ArrayList<STALRequest>(1);
- quit.add(new QuitRequest());
- getSTAL().handleRequest(quit);
- }
-
- protected String getFormParameterAsString(String formParameterName) {
- FormParameter fp = formParameterMap.get(formParameterName);
- return getFormParameterAsString(fp);
- }
-
- protected String getFormParameterAsString(FormParameter fp) {
- if (fp == null) {
- return null;
- }
- try {
- return StreamUtil.asString(fp.getFormParameterValue(), HttpUtil
- .getCharset(fp.getFormParameterContentType(), true));
- } catch (IOException e) {
- return null;
- }
- }
-
- protected String getDataUrl() {
- return getFormParameterAsString(FixedFormParameters.DATAURL);
- }
-
- protected String getStyleSheetUrl() {
- return getFormParameterAsString(FixedFormParameters.STYLESHEETURL);
- }
-
- protected List<FormParameter> getFormParameters(String parameterNamePostfix) {
- List<FormParameter> resultList = new ArrayList<FormParameter>();
- for (Iterator<String> fpi = formParameterMap.keySet().iterator(); fpi
- .hasNext();) {
- String paramName = fpi.next();
- if (paramName.endsWith(parameterNamePostfix)) {
- resultList.add(formParameterMap.get(paramName));
- }
- }
- return resultList;
- }
-
- protected List<FormParameter> getTransferHeaders() {
- return getFormParameters("__");
- }
-
- protected List<FormParameter> getTransferForms() {
- List<FormParameter> resultList = new ArrayList<FormParameter>();
- for (Iterator<String> fpi = formParameterMap.keySet().iterator(); fpi
- .hasNext();) {
- String paramName = fpi.next();
- if ((paramName.endsWith("_")) && (!paramName.endsWith("__"))) {
- resultList.add(formParameterMap.get(paramName));
- }
- }
- return resultList;
- }
-
- protected void closeDataUrlConnection() {
- log.debug("Closing data url input stream");
- if (dataUrlResponse == null) {
- return;
- }
- InputStream is = dataUrlResponse.getStream();
- if (is != null) {
- try {
- is.close();
- } catch (IOException e) {
- log.info("Error closing input stream to dataurl server:" + e);
- }
- }
- }
-
- //----------------------------------------------------------------------------
- // ----------- END CONVENIENCE METHODS -----------
-
- //----------------------------------------------------------------------------
- // -- BEGIN Methods that handle the http binding activities as defined in the
- // activity diagram --
-
- protected void init() {
- log.info("Starting Bindingprocessor in Thread: "
- + Thread.currentThread().getId());
- if (bindingProcessorError != null) {
- log.debug("Detected binding processor error, sending quit command");
- // sendSTALQuit();
- currentState = State.FINISHED;
- } else if (slCommand == null) {
- log.error("SLCommand not set (consumeRequest not called ??)");
- bindingProcessorError = new SLException(2000);
- // sendSTALQuit();
- currentState = State.FINISHED;
- } else {
- currentState = State.PROCESS;
- }
- }
-
- protected void processRequest() {
- log.debug("Entered State: " + State.PROCESS);
- log.debug("Processing command: " + slCommand);
- commandInvoker.setCommand(slCommand);
- responseCode = 200;
- responseHeaders = Collections.EMPTY_MAP;
- try {
- commandInvoker.invoke(srcContex);
- } catch (SLCanceledException e) {
- log.info("Caught exception: " + e);
- bindingProcessorError = e;
- currentState = State.TRANSFORM;
- }
- dataUrlResponse = null;
- if (getDataUrl() != null) {
- log.debug("Data Url set to: " + getDataUrl());
- currentState = State.DATAURL;
- } else {
- log.debug("No data url set");
- currentState = State.TRANSFORM;
- }
- }
-
- protected void handleDataUrl() {
- log.debug("Entered State: " + State.DATAURL);
- try {
- DataUrl dataUrl = new DataUrl(getDataUrl());
- DataUrlConnection conn = dataUrl.openConnection();
-
- // set transfer headers
- for (FormParameter fp : getTransferHeaders()) {
- String paramString = getFormParameterAsString(fp);
- if (paramString == null) {
- log.error("Got empty transfer header, ignoring this");
- } else {
- String[] keyVal = paramString.split(":", 2);
- String key = keyVal[0];
- String val = null;
- if (keyVal.length == 2) {
- val = keyVal[1];
- }
- val = val.trim();
- log.debug("Setting header " + key + " to value " + val);
- conn.setHTTPHeader(key, val);
- }
- }
-
- // set transfer form parameters
- for (FormParameter fp : getTransferForms()) {
- String contentTransferEncoding = null;
- String contentType = fp.getFormParameterContentType();
- String charSet = HttpUtil.getCharset(contentType, false);
- if (charSet != null) {
- contentType = contentType.substring(0, contentType
- .lastIndexOf(HttpUtil.SEPERATOR[0]));
- }
- for (Iterator<String> header = fp.getHeaderNames(); header.hasNext();) {
- if (HttpUtil.CONTENT_TRANSFER_ENCODING
- .equalsIgnoreCase(header.next())) {
- contentTransferEncoding = getFormParameterAsString(fp);
- }
- }
- log.debug("Setting form: " + fp.getFormParameterName()
- + " contentType: " + contentType + " charset: " + charSet
- + " contentTransferEncoding: " + contentTransferEncoding);
- conn.setHTTPFormParameter(fp.getFormParameterName(), fp
- .getFormParameterValue(), contentType, charSet,
- contentTransferEncoding);
- }
-
- // connect
- conn.connect();
- // fetch and set SL result
- targetContext.setTargetIsDataURL(true);
- targetContext.setTargetCertificate(conn.getServerCertificate());
- targetContext.setTargetProtocol(conn.getProtocol());
- SLResult result = commandInvoker.getResult(targetContext);
-
- // transfer result
- conn.transmit(result);
-
- // process Dataurl response
- dataUrlResponse = conn.getResponse();
- log.debug("Received data url response code: "
- + dataUrlResponse.getResponseCode());
- protocol = Protocol.fromString(conn.getProtocol());
-
- switch (dataUrlResponse.getResponseCode()) {
- case 200:
- String contentType = dataUrlResponse.getContentType();
- log.debug("Got dataurl response content type: " + contentType);
- if (contentType != null) {
- if ((contentType.startsWith(HttpUtil.APPLICATION_URL_ENCODED))
- || (contentType.startsWith(HttpUtil.MULTIPART_FOTMDATA))) {
- log.debug("Detected SL Request in dataurl response");
- // process headers and request
- setHTTPHeaders(dataUrlResponse.getResponseHeaders());
- consumeRequestStream(dataUrlResponse.getStream());
- closeDataUrlConnection();
- srcContex.setSourceCertificate(conn.getServerCertificate());
- srcContex.setSourceIsDataURL(true);
- srcContex
- .setSourceProtocol(Protocol.fromString(conn.getProtocol()));
- currentState = State.PROCESS;
- } else if (((contentType.startsWith(HttpUtil.TXT_HTML))
- || (contentType.startsWith(HttpUtil.TXT_PLAIN)) || (contentType
- .startsWith(HttpUtil.TXT_XML)))
- && (dataUrlResponse.isHttpResponseXMLOK())) {
- log.info("Dataurl response matches <ok/> with content type: "
- + contentType);
- currentState = State.TRANSFORM;
-
- } else if ((contentType.startsWith(HttpUtil.TXT_XML))
- && (!dataUrlResponse.isHttpResponseXMLOK())) {
- log
- .debug("Detected text/xml dataurl response with content != <ok/>");
- headerMap.put(HttpUtil.HTTP_HEADER_CONTENT_TYPE, contentType);
- assignXMLRequest(dataUrlResponse.getStream(), HttpUtil.getCharset(
- contentType, true));
- closeDataUrlConnection();
- srcContex.setSourceCertificate(conn.getServerCertificate());
- srcContex.setSourceIsDataURL(true);
- srcContex
- .setSourceProtocol(Protocol.fromString(conn.getProtocol()));
- currentState = State.PROCESS;
- // just to be complete, actually not used
- srcContex.setSourceHTTPReferer(dataUrlResponse.getResponseHeaders()
- .get(HttpUtil.HTTP_HEADER_REFERER));
- } else {
- resultContentType = contentType;
- responseHeaders = dataUrlResponse.getResponseHeaders();
- responseCode = dataUrlResponse.getResponseCode();
- currentState = State.FINISHED;
- }
- } else {
- log.debug("Content type not set in dataurl response");
- closeDataUrlConnection();
- throw new SLBindingException(2007);
- }
-
- break;
- case 307:
- contentType = dataUrlResponse.getContentType();
- if ((contentType != null) && (contentType.startsWith(HttpUtil.TXT_XML))) {
- log.debug("Received dataurl response code 307 with XML content");
- String location = dataUrlResponse.getResponseHeaders().get(
- HttpUtil.HTTP_HEADER_LOCATION);
- if (location == null) {
- log
- .error("Did not get a location header for a 307 data url response");
- throw new SLBindingException(2003);
- }
- // consumeRequestStream(dataUrlResponse.getStream());
- FormParameterStore fp = new FormParameterStore();
- fp.init(location.getBytes(HttpUtil.DEFAULT_CHARSET),
- FixedFormParameters.DATAURL, null, null);
- formParameterMap.put(FixedFormParameters.DATAURL, fp);
- headerMap.put(HttpUtil.HTTP_HEADER_CONTENT_TYPE, contentType);
- assignXMLRequest(dataUrlResponse.getStream(), HttpUtil.getCharset(
- dataUrlResponse.getContentType(), true));
- closeDataUrlConnection();
- srcContex.setSourceCertificate(conn.getServerCertificate());
- srcContex.setSourceIsDataURL(true);
- srcContex.setSourceProtocol(Protocol.fromString(conn.getProtocol()));
- currentState = State.PROCESS;
- // just to be complete, actually not used
- srcContex.setSourceHTTPReferer(dataUrlResponse.getResponseHeaders()
- .get(HttpUtil.HTTP_HEADER_REFERER));
-
- } else {
- log.debug("Received dataurl response code 307 non XML content: "
- + dataUrlResponse.getContentType());
- resultContentType = dataUrlResponse.getContentType();
- currentState = State.FINISHED;
- }
- responseHeaders = dataUrlResponse.getResponseHeaders();
- responseCode = dataUrlResponse.getResponseCode();
- break;
-
- case 301:
- case 302:
- case 303:
- responseHeaders = dataUrlResponse.getResponseHeaders();
- responseCode = dataUrlResponse.getResponseCode();
- resultContentType = dataUrlResponse.getContentType();
- currentState = State.FINISHED;
- break;
-
- default:
- // issue error
- log.info("Unexpected response code from dataurl server: "
- + dataUrlResponse.getResponseCode());
- throw new SLBindingException(2007);
- }
-
- } catch (SLException slx) {
- bindingProcessorError = slx;
- log.error("Error during dataurl communication");
- resultContentType = HttpUtil.TXT_XML;
- currentState = State.TRANSFORM;
- } catch (SSLHandshakeException hx) {
- bindingProcessorError = new SLException(2010);
- log.info("Error during dataurl communication", hx);
- resultContentType = HttpUtil.TXT_XML;
- currentState = State.TRANSFORM;
- } catch (IOException e) {
- bindingProcessorError = new SLBindingException(2001);
- log.error("Error while data url handling", e);
- resultContentType = HttpUtil.TXT_XML;
- currentState = State.TRANSFORM;
- return;
- }
- }
-
- protected void transformResult() {
- log.debug("Entered State: " + State.TRANSFORM);
- if (bindingProcessorError != null) {
- resultContentType = HttpUtil.TXT_XML;
- } else if (dataUrlResponse != null) {
- resultContentType = dataUrlResponse.getContentType();
- } else {
- targetContext.setTargetIsDataURL(false);
- targetContext.setTargetProtocol(protocol.toString());
- try {
- slResult = commandInvoker.getResult(targetContext);
- resultContentType = slResult.getMimeType();
- log
- .debug("Successfully got SLResult from commandinvoker, setting mimetype to: "
- + resultContentType);
- } catch (SLCanceledException e) {
- log.info("Cannot get result from invoker:", e);
- bindingProcessorError = new SLException(6002);
- resultContentType = HttpUtil.TXT_XML;
- }
- }
- transformer = getTransformer(getStyleSheetUrl());
- if (transformer != null) {
- log.debug("Output transformation required");
- resultContentType = transformer.getOutputProperty("media-type");
- log.debug("Got media type from stylesheet: " + resultContentType);
- if (resultContentType == null) {
- log.debug("Setting to default text/xml result conent type");
- resultContentType = "text/xml";
- }
- log.debug("Deferring sytylesheet processing");
- }
- currentState = State.FINISHED;
- }
-
- protected void finished() {
- log.debug("Entered State: " + State.FINISHED);
- if (bindingProcessorError != null) {
- log.debug("Binding processor error, sending quit command");
- resultContentType = HttpUtil.TXT_XML;
- }
- sendSTALQuit();
- log.info("Terminating Bindingprocessor; Thread: "
- + Thread.currentThread().getId());
- }
-
- // -- END Methods that handle the http binding activities as defined in the
- // activity diagram --
- //----------------------------------------------------------------------------
-
- /**
- * Sets the headers of the SL Request. IMPORTANT: make sure to set all headers
- * before invoking {@link #consumeRequestStream(InputStream)}
- *
- * @param aHeaderMap
- * if null all header will be cleared.
- */
- public void setHTTPHeaders(Map<String, String> aHeaderMap) {
- headerMap = new HashMap<String, String>();
- // ensure lowercase keys
- if (aHeaderMap != null) {
- for (String s : aHeaderMap.keySet()) {
- if (s != null) {
- headerMap.put(s.toLowerCase(), aHeaderMap.get(s));
- if (s.equalsIgnoreCase(HttpUtil.HTTP_HEADER_REFERER)) {
- String referer = aHeaderMap.get(s);
- log.debug("Got referer header: " + referer);
- srcContex.setSourceHTTPReferer(referer);
- }
- }
- }
- }
- }
-
- public void setSourceCertificate(X509Certificate aCert) {
- srcContex.setSourceCertificate(aCert);
- }
-
- /**
- * The HTTPBindingProcessor does not handle redirect URLs. It only provides
- * the parameter.
- *
- * @return null if redirect url is not set.
- */
- public String getRedirectURL() {
- return getFormParameterAsString(FixedFormParameters.REDIRECTURL);
- }
-
- public String getFormDataContentType(String aParameterName) {
- FormParameter fp = formParameterMap.get(aParameterName);
- if (fp != null) {
- return fp.getFormParameterContentType();
- }
- return null;
- }
-
- public InputStream getFormData(String aParameterName) {
- FormParameter fp = formParameterMap.get(aParameterName);
- if (fp != null) {
- return fp.getFormParameterValue();
- }
- return null;
- }
-
- protected void assignXMLRequest(InputStream is, String charset)
- throws IOException, SLException {
- Reader r = new InputStreamReader(is, charset);
- StreamSource source = new StreamSource(r);
- SLCommandContext commandCtx = new SLCommandContext();
- commandCtx.setSTAL(getSTAL());
- commandCtx.setURLDereferencerContext(new SimpleFormDataContextImpl(this));
- slCommand = SLCommandFactory.getInstance().createSLCommand(source,
- commandCtx);
- log.debug("Created new command: " + slCommand);
- }
-
- @Override
- public void run() {
- boolean done = false;
- int hopcounter = 0;
- if (bindingProcessorError != null) {
- currentState = State.FINISHED;
- }
- try {
- while (!done) {
- try {
- switch (currentState) {
- case INIT:
- init();
- break;
- case PROCESS:
- processRequest();
- break;
- case DATAURL:
- handleDataUrl();
- if (++hopcounter > MAX_DATAURL_HOPS) {
- log.error("Maximum number of dataurl hops reached");
- bindingProcessorError = new SLBindingException(2000);
- currentState = State.FINISHED;
- }
- break;
- case TRANSFORM:
- transformResult();
- break;
- case FINISHED:
- done = true;
- finished();
- break;
- }
- } catch (RuntimeException rte) {
- throw rte;
- } catch (Exception t) {
- log.error("Caught unexpected exception", t);
- responseCode = 200;
- resultContentType = HttpUtil.TXT_XML;
- responseHeaders = Collections.EMPTY_MAP;
- bindingProcessorError = new SLException(2000);
- currentState = State.FINISHED;
- }
- }
- } catch (Throwable t) {
- log.error("Caught unexpected exception", t);
- responseCode = 200;
- resultContentType = HttpUtil.TXT_XML;
- responseHeaders = Collections.EMPTY_MAP;
- bindingProcessorError = new SLException(2000);
- currentState = State.FINISHED;
- }
- log.debug("Terminated http binding processor");
- }
-
- @Override
- public void consumeRequestStream(InputStream is) {
- try {
- log.debug("Start consuming request stream");
- formParameterMap.clear();
- String cl = headerMap
- .get(HttpUtil.HTTP_HEADER_CONTENT_TYPE.toLowerCase());
- if (cl == null) {
- log.info("No content type set in http header");
- throw new SLBindingException(2006);
- }
- InputDecoder id = InputDecoderFactory.getDecoder(cl, is);
- id.setContentType(cl);
- if (id == null) {
- log.error("Cannot get inputdecoder for is");
- throw new SLException(2006);
- }
- for (Iterator<FormParameter> fpi = id.getFormParameterIterator(); fpi
- .hasNext();) {
- FormParameter fp = fpi.next();
- log.debug("Got request parameter with name: "
- + fp.getFormParameterName());
- if (fp.getFormParameterName().equals(FixedFormParameters.XMLREQUEST)) {
- log.debug("Creating XML Request");
- for (Iterator<String> headerIterator = fp.getHeaderNames(); headerIterator
- .hasNext();) {
- String headerName = headerIterator.next();
- if (HttpUtil.CONTENT_TRANSFER_ENCODING.equalsIgnoreCase(headerName)) {
- String transferEncoding = fp.getHeaderValue(headerName);
- log.debug("Got transfer encoding for xmlrequest: "
- + transferEncoding);
- if (XML_REQ_TRANSFER_ENCODING.contains(transferEncoding)) {
- log.debug("Supported transfer encoding: " + transferEncoding);
- } else {
- log
- .error("Transferencoding not supported: "
- + transferEncoding);
- throw new SLBindingException(2005);
- }
- }
- }
- String charset = HttpUtil.getCharset(cl, true);
- assignXMLRequest(fp.getFormParameterValue(), charset);
- } else {
- FormParameterStore fps = new FormParameterStore();
- fps.init(fp);
- if (!fps.isEmpty()) {
- log.debug("Setting from parameter: " + fps.getFormParameterName());
- formParameterMap.put(fps.getFormParameterName(), fps);
- }
- }
- }
- if (slCommand == null) {
- throw new SLBindingException(2004);
- }
- if (is.read() != -1) {
- log.error("Request input stream not completely read");
- // consume rest of stream, should never occur
- throw new SLRuntimeException(
- "request input stream not consumed till end");
- }
- } catch (SLException slx) {
- log.info("Error while consuming input stream " + slx);
- bindingProcessorError = slx;
- } catch (Throwable t) {
- log.info("Error while consuming input stream " + t, t);
- bindingProcessorError = new SLException(2000);
- } finally {
- try {
- while (is.read() != -1)
- ;
- } catch (IOException e) {
- log.error(e);
- }
- }
- }
-
- @Override
- public String getResultContentType() {
- return resultContentType;
- }
-
- protected Transformer getTransformer(String styleSheetURL) {
- if (styleSheetURL == null) {
- log.debug("Stylesheet URL not set");
- return null;
- }
- try {
- URLDereferencerContext urlCtx = new SimpleFormDataContextImpl(this);
- URIResolver resolver = new URIResolverAdapter(URLDereferencer
- .getInstance(), urlCtx);
- TransformerFactory factory = TransformerFactory.newInstance();
- StreamData sd = URLDereferencer.getInstance().dereference(styleSheetURL,
- urlCtx);
- Transformer t = factory.newTransformer(new StreamSource(sd.getStream()));
- t.setURIResolver(resolver);
- return t;
- } catch (Exception ex) {
- log.info("Cannot instantiate transformer", ex);
- bindingProcessorError = new SLException(2002);
- return null;
- }
- }
-
- protected void handleBindingProcessorError(OutputStream os, String encoding,
- Transformer transformer) throws IOException {
- log.debug("Writing error as result");
- ErrorResultImpl error = new ErrorResultImpl(bindingProcessorError);
- try {
- error.writeTo(new StreamResult(new OutputStreamWriter(os, encoding)),
- transformer);
- } catch (TransformerException e) {
- log.fatal("Cannot write error result to stream", e);
- }
- }
-
- @Override
- public void writeResultTo(OutputStream os, String encoding)
- throws IOException {
- if (encoding == null) {
- encoding = HttpUtil.DEFAULT_CHARSET;
- }
- if (bindingProcessorError != null) {
- log.debug("Detected error in binding processor, writing error as result");
- handleBindingProcessorError(os, encoding, transformer);
- return;
- } else if (dataUrlResponse != null) {
- log.debug("Writing data url response as result");
- String charEnc = HttpUtil.getCharset(dataUrlResponse.getContentType(),
- true);
- InputStreamReader isr = new InputStreamReader(
- dataUrlResponse.getStream(), charEnc);
- OutputStreamWriter osw = new OutputStreamWriter(os, encoding);
- if (transformer == null) {
- StreamUtil.copyStream(isr, osw);
- } else {
- try {
- transformer.transform(new StreamSource(isr), new StreamResult(osw));
- } catch (TransformerException e) {
- log.fatal("Exception occured during result transformation", e);
- // bindingProcessorError = new SLException(2008);
- // handleBindingProcessorError(os, encoding, null);
- return;
- }
- }
- osw.flush();
- isr.close();
- } else if (slResult == null) {
- // result not yet assigned -> must be a cancel
- bindingProcessorError = new SLException(6001);
- handleBindingProcessorError(os, encoding, transformer);
- return;
- } else {
- log.debug("Getting result from invoker");
- OutputStreamWriter osw = new OutputStreamWriter(os, encoding);
- try {
- slResult.writeTo(new StreamResult(osw), transformer);
- } catch (TransformerException e) {
- log.fatal("Cannot write result to stream", e);
- // bindingProcessorError = new SLException(2008);
- // handleBindingProcessorError(os, encoding, transformer);
- }
- osw.flush();
- }
- }
-
- /**
- * The response code from the dataurl server or 200 if no dataurl server
- * created the result
- *
- * @return
- */
- public int getResponseCode() {
- return responseCode;
- }
-
- /**
- * All headers from the data url server in case of a direct forward from the
- * dataurl server.
- *
- * @return
- */
- public Map<String, String> getResponseHeaders() {
- return responseHeaders;
- }
-
- @Override
- public void setLocale(Locale locale) {
- if (locale == null) {
- throw new NullPointerException("Locale must not be set to null");
- }
- this.locale = locale;
- }
-
+ * 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.
+ */
+package at.gv.egiz.bku.binding;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.Reader;
+import java.net.URL;
+import java.security.cert.X509Certificate;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+
+import javax.net.ssl.SSLHandshakeException;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.URIResolver;
+import javax.xml.transform.stream.StreamResult;
+import javax.xml.transform.stream.StreamSource;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.gv.egiz.bku.slcommands.SLCommand;
+import at.gv.egiz.bku.slcommands.SLCommandContext;
+import at.gv.egiz.bku.slcommands.SLCommandFactory;
+import at.gv.egiz.bku.slcommands.SLCommandInvoker;
+import at.gv.egiz.bku.slcommands.SLResult;
+import at.gv.egiz.bku.slcommands.SLSourceContext;
+import at.gv.egiz.bku.slcommands.SLTargetContext;
+import at.gv.egiz.bku.slcommands.impl.ErrorResultImpl;
+import at.gv.egiz.bku.slexceptions.SLBindingException;
+import at.gv.egiz.bku.slexceptions.SLException;
+import at.gv.egiz.bku.slexceptions.SLRuntimeException;
+import at.gv.egiz.bku.utils.StreamUtil;
+import at.gv.egiz.bku.utils.binding.Protocol;
+import at.gv.egiz.bku.utils.urldereferencer.FormDataURLSupplier;
+import at.gv.egiz.bku.utils.urldereferencer.SimpleFormDataContextImpl;
+import at.gv.egiz.bku.utils.urldereferencer.StreamData;
+import at.gv.egiz.bku.utils.urldereferencer.URIResolverAdapter;
+import at.gv.egiz.bku.utils.urldereferencer.URLDereferencer;
+import at.gv.egiz.bku.utils.urldereferencer.URLDereferencerContext;
+import at.gv.egiz.stal.QuitRequest;
+import at.gv.egiz.stal.STALRequest;
+
+/**
+ * Class performing the HTTP binding as defined by the CCE specification.
+ * Currently a huge monolithic class.
+ *
+ * @TODO refactor
+ */
+@SuppressWarnings("unchecked")
+public class HTTPBindingProcessor extends AbstractBindingProcessor implements
+ FormDataURLSupplier {
+
+ private static Log log = LogFactory.getLog(HTTPBindingProcessor.class);
+
+ private static enum State {
+ INIT, PROCESS, DATAURL, TRANSFORM, FINISHED
+ };
+
+ public final static Collection<String> XML_REQ_TRANSFER_ENCODING = Arrays
+ .asList(new String[] { "binary" });
+
+ /**
+ * Defines the maximum number of dataurl connects that are allowed within a
+ * single SL Request processing.
+ */
+ protected static int MAX_DATAURL_HOPS = 10;
+
+ protected static String XML_MIME_TYPE = "text/xml";
+ protected static String BINARY_MIME_TYPE = "application/octet-stream";
+
+ /**
+ * If null everything is ok and the result is taken from the command invoker.
+ */
+ protected SLException bindingProcessorError;
+ protected SLCommandInvoker commandInvoker;
+ protected DataUrlResponse dataUrlResponse;
+ protected Map<String, String> headerMap = Collections.EMPTY_MAP;
+ protected SLCommand slCommand;
+ protected Map<String, FormParameter> formParameterMap = new HashMap<String, FormParameter>();
+ protected SLSourceContext srcContex = new SLSourceContext();
+ protected SLTargetContext targetContext = new SLTargetContext();
+ protected URL srcUrl;
+ protected State currentState = State.INIT;
+ protected Transformer transformer = null;
+ protected String resultContentType = null;
+ protected SLResult slResult = null;
+ protected int responseCode = 200;
+ protected Map<String, String> responseHeaders = Collections.EMPTY_MAP;
+ protected Locale locale = Locale.getDefault();
+
+ /**
+ *
+ * @param id
+ * may be null. In this case a new session id will be created.
+ * @param cmdInvoker
+ * must not be null;
+ */
+ public HTTPBindingProcessor(String id, SLCommandInvoker cmdInvoker, URL source) {
+ super(id);
+ this.srcUrl = source;
+ Protocol protocol = Protocol.fromString(source.getProtocol());
+ if ((protocol != Protocol.HTTP) && (protocol != Protocol.HTTPS)) {
+ throw new SLRuntimeException("Protocol not supported: " + protocol);
+ }
+ if (cmdInvoker == null) {
+ throw new NullPointerException("Commandinvoker cannot be set to null");
+ }
+ commandInvoker = cmdInvoker;
+ srcContex.setSourceUrl(source);
+ srcContex.setSourceIsDataURL(false);
+ }
+
+ //----------------------------------------------------------------------------
+ // ----------- BEGIN CONVENIENCE METHODS -----------
+
+ protected void sendSTALQuit() {
+ log.info("Sending QUIT command to STAL");
+ List<STALRequest> quit = new ArrayList<STALRequest>(1);
+ quit.add(new QuitRequest());
+ getSTAL().handleRequest(quit);
+ }
+
+ protected String getFormParameterAsString(String formParameterName) {
+ FormParameter fp = formParameterMap.get(formParameterName);
+ return getFormParameterAsString(fp);
+ }
+
+ protected String getFormParameterAsString(FormParameter fp) {
+ if (fp == null) {
+ return null;
+ }
+ try {
+ return StreamUtil.asString(fp.getFormParameterValue(), HttpUtil
+ .getCharset(fp.getFormParameterContentType(), true));
+ } catch (IOException e) {
+ return null;
+ }
+ }
+
+ protected String getDataUrl() {
+ return getFormParameterAsString(FixedFormParameters.DATAURL);
+ }
+
+ protected String getStyleSheetUrl() {
+ return getFormParameterAsString(FixedFormParameters.STYLESHEETURL);
+ }
+
+ protected List<FormParameter> getFormParameters(String parameterNamePostfix) {
+ List<FormParameter> resultList = new ArrayList<FormParameter>();
+ for (Iterator<String> fpi = formParameterMap.keySet().iterator(); fpi
+ .hasNext();) {
+ String paramName = fpi.next();
+ if (paramName.endsWith(parameterNamePostfix)) {
+ resultList.add(formParameterMap.get(paramName));
+ }
+ }
+ return resultList;
+ }
+
+ protected List<FormParameter> getTransferHeaders() {
+ return getFormParameters("__");
+ }
+
+ protected List<FormParameter> getTransferForms() {
+ List<FormParameter> resultList = new ArrayList<FormParameter>();
+ for (Iterator<String> fpi = formParameterMap.keySet().iterator(); fpi
+ .hasNext();) {
+ String paramName = fpi.next();
+ if ((paramName.endsWith("_")) && (!paramName.endsWith("__"))) {
+ resultList.add(formParameterMap.get(paramName));
+ }
+ }
+ return resultList;
+ }
+
+ protected void closeDataUrlConnection() {
+ log.debug("Closing data url input stream");
+ if (dataUrlResponse == null) {
+ return;
+ }
+ InputStream is = dataUrlResponse.getStream();
+ if (is != null) {
+ try {
+ is.close();
+ } catch (IOException e) {
+ log.info("Error closing input stream to dataurl server:" + e);
+ }
+ }
+ }
+
+ //----------------------------------------------------------------------------
+ // ----------- END CONVENIENCE METHODS -----------
+
+ //----------------------------------------------------------------------------
+ // -- BEGIN Methods that handle the http binding activities as defined in the
+ // activity diagram --
+
+ protected void init() {
+ log.info("Starting Bindingprocessor in Thread: "
+ + Thread.currentThread().getId());
+ if (bindingProcessorError != null) {
+ log.debug("Detected binding processor error, sending quit command");
+ // sendSTALQuit();
+ currentState = State.FINISHED;
+ } else if (slCommand == null) {
+ log.error("SLCommand not set (consumeRequest not called ??)");
+ bindingProcessorError = new SLException(2000);
+ // sendSTALQuit();
+ currentState = State.FINISHED;
+ } else {
+ currentState = State.PROCESS;
+ }
+ }
+
+ protected void processRequest() {
+ log.debug("Entered State: " + State.PROCESS);
+ log.debug("Processing command: " + slCommand);
+ commandInvoker.setCommand(slCommand);
+ responseCode = 200;
+ responseHeaders = Collections.EMPTY_MAP;
+ try {
+ commandInvoker.invoke(srcContex);
+ } catch (SLException e) {
+ log.info("Caught exception: " + e);
+ bindingProcessorError = e;
+ currentState = State.TRANSFORM;
+ }
+ dataUrlResponse = null;
+ if (getDataUrl() != null) {
+ log.debug("Data Url set to: " + getDataUrl());
+ currentState = State.DATAURL;
+ } else {
+ log.debug("No data url set");
+ currentState = State.TRANSFORM;
+ }
+ }
+
+ protected void handleDataUrl() {
+ log.debug("Entered State: " + State.DATAURL);
+ try {
+ DataUrl dataUrl = new DataUrl(getDataUrl());
+ DataUrlConnection conn = dataUrl.openConnection();
+
+ // set transfer headers
+ for (FormParameter fp : getTransferHeaders()) {
+ String paramString = getFormParameterAsString(fp);
+ if (paramString == null) {
+ log.error("Got empty transfer header, ignoring this");
+ } else {
+ String[] keyVal = paramString.split(":", 2);
+ String key = keyVal[0];
+ String val = null;
+ if (keyVal.length == 2) {
+ val = keyVal[1];
+ }
+ val = val.trim();
+ log.debug("Setting header " + key + " to value " + val);
+ conn.setHTTPHeader(key, val);
+ }
+ }
+
+ // set transfer form parameters
+ for (FormParameter fp : getTransferForms()) {
+ String contentTransferEncoding = null;
+ String contentType = fp.getFormParameterContentType();
+ String charSet = HttpUtil.getCharset(contentType, false);
+ if (charSet != null) {
+ contentType = contentType.substring(0, contentType
+ .lastIndexOf(HttpUtil.SEPERATOR[0]));
+ }
+ for (Iterator<String> header = fp.getHeaderNames(); header.hasNext();) {
+ if (HttpUtil.CONTENT_TRANSFER_ENCODING
+ .equalsIgnoreCase(header.next())) {
+ contentTransferEncoding = getFormParameterAsString(fp);
+ }
+ }
+ log.debug("Setting form: " + fp.getFormParameterName()
+ + " contentType: " + contentType + " charset: " + charSet
+ + " contentTransferEncoding: " + contentTransferEncoding);
+ conn.setHTTPFormParameter(fp.getFormParameterName(), fp
+ .getFormParameterValue(), contentType, charSet,
+ contentTransferEncoding);
+ }
+
+ // connect
+ conn.connect();
+ // fetch and set SL result
+ targetContext.setTargetIsDataURL(true);
+ targetContext.setTargetCertificate(conn.getServerCertificate());
+ targetContext.setTargetUrl(conn.getUrl());
+ SLResult result = commandInvoker.getResult(targetContext);
+
+ // transfer result
+ conn.transmit(result);
+
+ // process Dataurl response
+ dataUrlResponse = conn.getResponse();
+ log.debug("Received data url response code: "
+ + dataUrlResponse.getResponseCode());
+
+ switch (dataUrlResponse.getResponseCode()) {
+ case 200:
+ String contentType = dataUrlResponse.getContentType();
+ log.debug("Got dataurl response content type: " + contentType);
+ if (contentType != null) {
+ if ((contentType.startsWith(HttpUtil.APPLICATION_URL_ENCODED))
+ || (contentType.startsWith(HttpUtil.MULTIPART_FOTMDATA))) {
+ log.debug("Detected SL Request in dataurl response");
+ // process headers and request
+ setHTTPHeaders(dataUrlResponse.getResponseHeaders());
+ consumeRequestStream(dataUrlResponse.getStream());
+ closeDataUrlConnection();
+ srcContex.setSourceCertificate(conn.getServerCertificate());
+ srcContex.setSourceIsDataURL(true);
+ srcContex.setSourceUrl(conn.getUrl());
+ currentState = State.PROCESS;
+ } else if (((contentType.startsWith(HttpUtil.TXT_HTML))
+ || (contentType.startsWith(HttpUtil.TXT_PLAIN)) || (contentType
+ .startsWith(HttpUtil.TXT_XML)))
+ && (dataUrlResponse.isHttpResponseXMLOK())) {
+ log.info("Dataurl response matches <ok/> with content type: "
+ + contentType);
+ currentState = State.TRANSFORM;
+
+ } else if ((contentType.startsWith(HttpUtil.TXT_XML))
+ && (!dataUrlResponse.isHttpResponseXMLOK())) {
+ log
+ .debug("Detected text/xml dataurl response with content != <ok/>");
+ headerMap.put(HttpUtil.HTTP_HEADER_CONTENT_TYPE, contentType);
+ assignXMLRequest(dataUrlResponse.getStream(), HttpUtil.getCharset(
+ contentType, true));
+ closeDataUrlConnection();
+ srcContex.setSourceCertificate(conn.getServerCertificate());
+ srcContex.setSourceIsDataURL(true);
+ srcContex.setSourceUrl(conn.getUrl());
+ currentState = State.PROCESS;
+ // just to be complete, actually not used
+ srcContex.setSourceHTTPReferer(dataUrlResponse.getResponseHeaders()
+ .get(HttpUtil.HTTP_HEADER_REFERER));
+ } else {
+ resultContentType = contentType;
+ responseHeaders = dataUrlResponse.getResponseHeaders();
+ responseCode = dataUrlResponse.getResponseCode();
+ currentState = State.FINISHED;
+ }
+ } else {
+ log.debug("Content type not set in dataurl response");
+ closeDataUrlConnection();
+ throw new SLBindingException(2007);
+ }
+
+ break;
+ case 307:
+ contentType = dataUrlResponse.getContentType();
+ if ((contentType != null) && (contentType.startsWith(HttpUtil.TXT_XML))) {
+ log.debug("Received dataurl response code 307 with XML content");
+ String location = dataUrlResponse.getResponseHeaders().get(
+ HttpUtil.HTTP_HEADER_LOCATION);
+ if (location == null) {
+ log
+ .error("Did not get a location header for a 307 data url response");
+ throw new SLBindingException(2003);
+ }
+ // consumeRequestStream(dataUrlResponse.getStream());
+ FormParameterStore fp = new FormParameterStore();
+ fp.init(location.getBytes(HttpUtil.DEFAULT_CHARSET),
+ FixedFormParameters.DATAURL, null, null);
+ formParameterMap.put(FixedFormParameters.DATAURL, fp);
+ headerMap.put(HttpUtil.HTTP_HEADER_CONTENT_TYPE, contentType);
+ assignXMLRequest(dataUrlResponse.getStream(), HttpUtil.getCharset(
+ dataUrlResponse.getContentType(), true));
+ closeDataUrlConnection();
+ srcContex.setSourceCertificate(conn.getServerCertificate());
+ srcContex.setSourceIsDataURL(true);
+ srcContex.setSourceUrl(conn.getUrl());
+ currentState = State.PROCESS;
+ // just to be complete, actually not used
+ srcContex.setSourceHTTPReferer(dataUrlResponse.getResponseHeaders()
+ .get(HttpUtil.HTTP_HEADER_REFERER));
+
+ } else {
+ log.debug("Received dataurl response code 307 non XML content: "
+ + dataUrlResponse.getContentType());
+ resultContentType = dataUrlResponse.getContentType();
+ currentState = State.FINISHED;
+ }
+ responseHeaders = dataUrlResponse.getResponseHeaders();
+ responseCode = dataUrlResponse.getResponseCode();
+ break;
+
+ case 301:
+ case 302:
+ case 303:
+ responseHeaders = dataUrlResponse.getResponseHeaders();
+ responseCode = dataUrlResponse.getResponseCode();
+ resultContentType = dataUrlResponse.getContentType();
+ currentState = State.FINISHED;
+ break;
+
+ default:
+ // issue error
+ log.info("Unexpected response code from dataurl server: "
+ + dataUrlResponse.getResponseCode());
+ throw new SLBindingException(2007);
+ }
+
+ } catch (SLException slx) {
+ bindingProcessorError = slx;
+ log.error("Error during dataurl communication");
+ resultContentType = HttpUtil.TXT_XML;
+ currentState = State.TRANSFORM;
+ } catch (SSLHandshakeException hx) {
+ bindingProcessorError = new SLException(2010);
+ log.info("Error during dataurl communication", hx);
+ resultContentType = HttpUtil.TXT_XML;
+ currentState = State.TRANSFORM;
+ } catch (IOException e) {
+ bindingProcessorError = new SLBindingException(2001);
+ log.error("Error while data url handling", e);
+ resultContentType = HttpUtil.TXT_XML;
+ currentState = State.TRANSFORM;
+ return;
+ }
+ }
+
+ protected void transformResult() {
+ log.debug("Entered State: " + State.TRANSFORM);
+ if (bindingProcessorError != null) {
+ resultContentType = HttpUtil.TXT_XML;
+ } else if (dataUrlResponse != null) {
+ resultContentType = dataUrlResponse.getContentType();
+ } else {
+ targetContext.setTargetIsDataURL(false);
+ targetContext.setTargetUrl(srcUrl);
+ try {
+ slResult = commandInvoker.getResult(targetContext);
+ resultContentType = slResult.getMimeType();
+ log
+ .debug("Successfully got SLResult from commandinvoker, setting mimetype to: "
+ + resultContentType);
+ } catch (SLException e) {
+ log.info("Cannot get result from invoker:", e);
+ bindingProcessorError = new SLException(6002);
+ resultContentType = HttpUtil.TXT_XML;
+ }
+ }
+ transformer = getTransformer(getStyleSheetUrl());
+ if (transformer != null) {
+ log.debug("Output transformation required");
+ resultContentType = transformer.getOutputProperty("media-type");
+ log.debug("Got media type from stylesheet: " + resultContentType);
+ if (resultContentType == null) {
+ log.debug("Setting to default text/xml result conent type");
+ resultContentType = "text/xml";
+ }
+ log.debug("Deferring sytylesheet processing");
+ }
+ currentState = State.FINISHED;
+ }
+
+ protected void finished() {
+ log.debug("Entered State: " + State.FINISHED);
+ if (bindingProcessorError != null) {
+ log.debug("Binding processor error, sending quit command");
+ resultContentType = HttpUtil.TXT_XML;
+ }
+ sendSTALQuit();
+ log.info("Terminating Bindingprocessor; Thread: "
+ + Thread.currentThread().getId());
+ }
+
+ // -- END Methods that handle the http binding activities as defined in the
+ // activity diagram --
+ //----------------------------------------------------------------------------
+
+ /**
+ * Sets the headers of the SL Request. IMPORTANT: make sure to set all headers
+ * before invoking {@link #consumeRequestStream(InputStream)}
+ *
+ * @param aHeaderMap
+ * if null all header will be cleared.
+ */
+ public void setHTTPHeaders(Map<String, String> aHeaderMap) {
+ headerMap = new HashMap<String, String>();
+ // ensure lowercase keys
+ if (aHeaderMap != null) {
+ for (String s : aHeaderMap.keySet()) {
+ if (s != null) {
+ headerMap.put(s.toLowerCase(), aHeaderMap.get(s));
+ if (s.equalsIgnoreCase(HttpUtil.HTTP_HEADER_REFERER)) {
+ String referer = aHeaderMap.get(s);
+ log.debug("Got referer header: " + referer);
+ srcContex.setSourceHTTPReferer(referer);
+ }
+ }
+ }
+ }
+ }
+
+ public void setSourceCertificate(X509Certificate aCert) {
+ srcContex.setSourceCertificate(aCert);
+ }
+
+ /**
+ * The HTTPBindingProcessor does not handle redirect URLs. It only provides
+ * the parameter.
+ *
+ * @return null if redirect url is not set.
+ */
+ public String getRedirectURL() {
+ return getFormParameterAsString(FixedFormParameters.REDIRECTURL);
+ }
+
+ public String getFormDataContentType(String aParameterName) {
+ FormParameter fp = formParameterMap.get(aParameterName);
+ if (fp != null) {
+ return fp.getFormParameterContentType();
+ }
+ return null;
+ }
+
+ public InputStream getFormData(String aParameterName) {
+ FormParameter fp = formParameterMap.get(aParameterName);
+ if (fp != null) {
+ return fp.getFormParameterValue();
+ }
+ return null;
+ }
+
+ protected void assignXMLRequest(InputStream is, String charset)
+ throws IOException, SLException {
+ Reader r = new InputStreamReader(is, charset);
+ StreamSource source = new StreamSource(r);
+ SLCommandContext commandCtx = new SLCommandContext();
+ commandCtx.setSTAL(getSTAL());
+ commandCtx.setURLDereferencerContext(new SimpleFormDataContextImpl(this));
+ slCommand = SLCommandFactory.getInstance().createSLCommand(source,
+ commandCtx);
+ log.debug("Created new command: " + slCommand);
+ }
+
+ @Override
+ public void run() {
+ boolean done = false;
+ int hopcounter = 0;
+ if (bindingProcessorError != null) {
+ currentState = State.FINISHED;
+ }
+ try {
+ while (!done) {
+ try {
+ switch (currentState) {
+ case INIT:
+ init();
+ break;
+ case PROCESS:
+ processRequest();
+ break;
+ case DATAURL:
+ handleDataUrl();
+ if (++hopcounter > MAX_DATAURL_HOPS) {
+ log.error("Maximum number of dataurl hops reached");
+ bindingProcessorError = new SLBindingException(2000);
+ currentState = State.FINISHED;
+ }
+ break;
+ case TRANSFORM:
+ transformResult();
+ break;
+ case FINISHED:
+ done = true;
+ finished();
+ break;
+ }
+ } catch (RuntimeException rte) {
+ throw rte;
+ } catch (Exception t) {
+ log.error("Caught unexpected exception", t);
+ responseCode = 200;
+ resultContentType = HttpUtil.TXT_XML;
+ responseHeaders = Collections.EMPTY_MAP;
+ bindingProcessorError = new SLException(2000);
+ currentState = State.FINISHED;
+ }
+ }
+ } catch (Throwable t) {
+ log.error("Caught unexpected exception", t);
+ responseCode = 200;
+ resultContentType = HttpUtil.TXT_XML;
+ responseHeaders = Collections.EMPTY_MAP;
+ bindingProcessorError = new SLException(2000);
+ currentState = State.FINISHED;
+ }
+ log.debug("Terminated http binding processor");
+ }
+
+ @Override
+ public void consumeRequestStream(InputStream is) {
+ try {
+ log.debug("Start consuming request stream");
+ formParameterMap.clear();
+ String cl = headerMap
+ .get(HttpUtil.HTTP_HEADER_CONTENT_TYPE.toLowerCase());
+ if (cl == null) {
+ log.info("No content type set in http header");
+ throw new SLBindingException(2006);
+ }
+ InputDecoder id = InputDecoderFactory.getDecoder(cl, is);
+ id.setContentType(cl);
+ if (id == null) {
+ log.error("Cannot get inputdecoder for is");
+ throw new SLException(2006);
+ }
+ for (Iterator<FormParameter> fpi = id.getFormParameterIterator(); fpi
+ .hasNext();) {
+ FormParameter fp = fpi.next();
+ log.debug("Got request parameter with name: "
+ + fp.getFormParameterName());
+ if (fp.getFormParameterName().equals(FixedFormParameters.XMLREQUEST)) {
+ log.debug("Creating XML Request");
+ for (Iterator<String> headerIterator = fp.getHeaderNames(); headerIterator
+ .hasNext();) {
+ String headerName = headerIterator.next();
+ if (HttpUtil.CONTENT_TRANSFER_ENCODING.equalsIgnoreCase(headerName)) {
+ String transferEncoding = fp.getHeaderValue(headerName);
+ log.debug("Got transfer encoding for xmlrequest: "
+ + transferEncoding);
+ if (XML_REQ_TRANSFER_ENCODING.contains(transferEncoding)) {
+ log.debug("Supported transfer encoding: " + transferEncoding);
+ } else {
+ log
+ .error("Transferencoding not supported: "
+ + transferEncoding);
+ throw new SLBindingException(2005);
+ }
+ }
+ }
+ String charset = HttpUtil.getCharset(cl, true);
+ assignXMLRequest(fp.getFormParameterValue(), charset);
+ } else {
+ FormParameterStore fps = new FormParameterStore();
+ fps.init(fp);
+ if (!fps.isEmpty()) {
+ log.debug("Setting from parameter: " + fps.getFormParameterName());
+ formParameterMap.put(fps.getFormParameterName(), fps);
+ }
+ }
+ }
+ if (slCommand == null) {
+ throw new SLBindingException(2004);
+ }
+ if (is.read() != -1) {
+ log.error("Request input stream not completely read");
+ // consume rest of stream, should never occur
+ throw new SLRuntimeException(
+ "request input stream not consumed till end");
+ }
+ } catch (SLException slx) {
+ log.info("Error while consuming input stream " + slx);
+ bindingProcessorError = slx;
+ } catch (Throwable t) {
+ log.info("Error while consuming input stream " + t, t);
+ bindingProcessorError = new SLException(2000);
+ } finally {
+ try {
+ while (is.read() != -1)
+ ;
+ } catch (IOException e) {
+ log.error(e);
+ }
+ }
+ }
+
+ @Override
+ public String getResultContentType() {
+ return resultContentType;
+ }
+
+ protected Transformer getTransformer(String styleSheetURL) {
+ if (styleSheetURL == null) {
+ log.debug("Stylesheet URL not set");
+ return null;
+ }
+ try {
+ URLDereferencerContext urlCtx = new SimpleFormDataContextImpl(this);
+ URIResolver resolver = new URIResolverAdapter(URLDereferencer
+ .getInstance(), urlCtx);
+ TransformerFactory factory = TransformerFactory.newInstance();
+ StreamData sd = URLDereferencer.getInstance().dereference(styleSheetURL,
+ urlCtx);
+ Transformer t = factory.newTransformer(new StreamSource(sd.getStream()));
+ t.setURIResolver(resolver);
+ return t;
+ } catch (Exception ex) {
+ log.info("Cannot instantiate transformer", ex);
+ bindingProcessorError = new SLException(2002);
+ return null;
+ }
+ }
+
+ protected void handleBindingProcessorError(OutputStream os, String encoding,
+ Transformer transformer) throws IOException {
+ log.debug("Writing error as result");
+ ErrorResultImpl error = new ErrorResultImpl(bindingProcessorError);
+ try {
+ error.writeTo(new StreamResult(new OutputStreamWriter(os, encoding)),
+ transformer);
+ } catch (TransformerException e) {
+ log.fatal("Cannot write error result to stream", e);
+ }
+ }
+
+ @Override
+ public void writeResultTo(OutputStream os, String encoding)
+ throws IOException {
+ if (encoding == null) {
+ encoding = HttpUtil.DEFAULT_CHARSET;
+ }
+ if (bindingProcessorError != null) {
+ log.debug("Detected error in binding processor, writing error as result");
+ handleBindingProcessorError(os, encoding, transformer);
+ return;
+ } else if (dataUrlResponse != null) {
+ log.debug("Writing data url response as result");
+ String charEnc = HttpUtil.getCharset(dataUrlResponse.getContentType(),
+ true);
+ InputStreamReader isr = new InputStreamReader(
+ dataUrlResponse.getStream(), charEnc);
+ OutputStreamWriter osw = new OutputStreamWriter(os, encoding);
+ if (transformer == null) {
+ StreamUtil.copyStream(isr, osw);
+ } else {
+ try {
+ transformer.transform(new StreamSource(isr), new StreamResult(osw));
+ } catch (TransformerException e) {
+ log.fatal("Exception occured during result transformation", e);
+ // bindingProcessorError = new SLException(2008);
+ // handleBindingProcessorError(os, encoding, null);
+ return;
+ }
+ }
+ osw.flush();
+ isr.close();
+ } else if (slResult == null) {
+ // result not yet assigned -> must be a cancel
+ bindingProcessorError = new SLException(6001);
+ handleBindingProcessorError(os, encoding, transformer);
+ return;
+ } else {
+ log.debug("Getting result from invoker");
+ OutputStreamWriter osw = new OutputStreamWriter(os, encoding);
+ try {
+ slResult.writeTo(new StreamResult(osw), transformer);
+ } catch (TransformerException e) {
+ log.fatal("Cannot write result to stream", e);
+ // bindingProcessorError = new SLException(2008);
+ // handleBindingProcessorError(os, encoding, transformer);
+ }
+ osw.flush();
+ }
+ }
+
+ /**
+ * The response code from the dataurl server or 200 if no dataurl server
+ * created the result
+ *
+ * @return
+ */
+ public int getResponseCode() {
+ return responseCode;
+ }
+
+ /**
+ * All headers from the data url server in case of a direct forward from the
+ * dataurl server.
+ *
+ * @return
+ */
+ public Map<String, String> getResponseHeaders() {
+ return responseHeaders;
+ }
+
+ @Override
+ public void setLocale(Locale locale) {
+ if (locale == null) {
+ throw new NullPointerException("Locale must not be set to null");
+ }
+ this.locale = locale;
+ }
+
} \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-20 02:20:34 +0000