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114 brianR 1 
/*
2 
 *   Copyright 2013 Brian Rosenberger (Brutex Network)
3 
 *
4 
 *   Licensed under the Apache License, Version 2.0 (the "License");
5 
 *   you may not use this file except in compliance with the License.
6 
 *   You may obtain a copy of the License at
7 
 *
8 
 *       http://www.apache.org/licenses/LICENSE-2.0
9 
 *
10 
 *   Unless required by applicable law or agreed to in writing, software
11 
 *   distributed under the License is distributed on an "AS IS" BASIS,
12 
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 
 *   See the License for the specific language governing permissions and
14 
 *   limitations under the License.
15 
 */
16 
 
17 
package net.brutex.xservices.ws.impl;
18 
 
19 
import java.io.ByteArrayInputStream;
20 
import java.io.IOException;
21 
import java.io.InputStream;
22 
import java.io.StringReader;
23 
import java.io.StringWriter;
127 brianR 24 
import java.io.UnsupportedEncodingException;
25 
import java.nio.charset.Charset;
26 
import java.nio.charset.IllegalCharsetNameException;
114 brianR 27 
import java.util.Iterator;
28 
import java.util.List;
29 
import java.util.StringTokenizer;
30 
 
31 
import javax.jws.WebService;
158 brianR 32 
import javax.ws.rs.NotAuthorizedException;
127 brianR 33 
import javax.xml.namespace.QName;
114 brianR 34 
import javax.xml.stream.XMLOutputFactory;
35 
import javax.xml.stream.XMLStreamException;
36 
import javax.xml.stream.XMLStreamReader;
37 
import javax.xml.stream.XMLStreamWriter;
127 brianR 38 
 
158 brianR 39 
import net.brutex.xservices.security.DirectoryPermission;
127 brianR 40 
import net.brutex.xservices.types.AttributeType;
114 brianR 41 
import net.brutex.xservices.types.NamespaceListType;
42 
import net.brutex.xservices.types.NamespaceType;
127 brianR 43 
import net.brutex.xservices.types.StringSplitType;
114 brianR 44 
import net.brutex.xservices.types.ant.FileResource;
45 
import net.brutex.xservices.ws.XServicesFault;
46 
import net.brutex.xservices.ws.XmlService;
158 brianR 47 
 
114 brianR 48 
import org.apache.axiom.om.OMAbstractFactory;
127 brianR 49 
import org.apache.axiom.om.OMAttribute;
114 brianR 50 
import org.apache.axiom.om.OMCloneOptions;
127 brianR 51 
import org.apache.axiom.om.OMComment;
114 brianR 52 
import org.apache.axiom.om.OMContainer;
53 
import org.apache.axiom.om.OMDocument;
54 
import org.apache.axiom.om.OMElement;
127 brianR 55 
import org.apache.axiom.om.OMFactory;
114 brianR 56 
import org.apache.axiom.om.OMNode;
127 brianR 57 
import org.apache.axiom.om.OMProcessingInstruction;
114 brianR 58 
import org.apache.axiom.om.OMText;
59 
import org.apache.axiom.om.OMXMLBuilderFactory;
60 
import org.apache.axiom.om.xpath.AXIOMXPath;
61 
import org.apache.log4j.Logger;
158 brianR 62 
import org.apache.shiro.SecurityUtils;
63 
import org.apache.shiro.authz.UnauthorizedException;
177 brianR 64 
import org.apache.shiro.authz.annotation.RequiresPermissions;
114 brianR 65 
import org.jaxen.JaxenException;
66 
import org.jaxen.SimpleNamespaceContext;
67 
 
68 
/**
69 
 * @author Brian Rosenberger, bru(at)brutex.de
70 
 *
71 
 */
72 
@WebService(targetNamespace = "http://ws.xservices.brutex.net", endpointInterface = "net.brutex.xservices.ws.XmlService", serviceName = "XmlService")
73 
public class XmlServiceImpl implements XmlService {
74 
	final Logger logger = Logger.getLogger(XmlServiceImpl.class);
75 
 
76 
	public String insertNodesFromFile(FileResource res, NamespaceListType nsList, String xpath, String xmlFragment) throws XServicesFault {
77 
		try {
78 
			AXIOMXPath axp = new AXIOMXPath(xpath);
79 
			InputStream is = res.getAntResource(null).getInputStream();
80 
			OMDocument sourcedoc = OMXMLBuilderFactory.createOMBuilder(is)
81 
					.getDocument();
82 
			OMDocument fragdoc = null;
83 
			if ((xmlFragment != null) && (new String(xmlFragment).length() > 0)) {
84 
				fragdoc = OMXMLBuilderFactory.createOMBuilder(
85 
						new StringReader("<XS>" + xmlFragment + "</XS>"))
86 
						.getDocument();
87 
			} else {
88 
				throw new XServicesFault("No xmldata to insert.");
89 
			}
90 
 
91 
			// Initialize XPath context
127 brianR 92 
			SimpleNamespaceContext context = createContext(nsList);
114 brianR 93 
			axp.setNamespaceContext(context);
94 
			axp.addNamespaces(fragdoc.getOMDocumentElement());
95 
 
96 
			OMDocument document = insertNodes(sourcedoc, axp, fragdoc);
97 
 
98 
			StringWriter sw = new StringWriter();
99 
			XMLOutputFactory xof = XMLOutputFactory.newInstance();
100 
			XMLStreamWriter writer = xof.createXMLStreamWriter(sw);
101 
			document.serialize(writer);
102 
 
103 
			this.logger.trace(sw.getBuffer().toString());
104 
			return sw.getBuffer().toString();
105 
		} catch (JaxenException e) {
106 
			e.printStackTrace();
107 
			throw new XServicesFault(e);
108 
		} catch (IOException e) {
109 
			e.printStackTrace();
110 
			throw new XServicesFault(e);
111 
		} catch (XMLStreamException e) {
112 
			e.printStackTrace();
113 
			throw new XServicesFault(e);
114 
		}
115 
	}
116 
 
127 brianR 117 
	public String replaceNodesFromFile(FileResource res, NamespaceListType nsList, String xpath, String xmlFragment) throws XServicesFault {
114 brianR 118 
		try {
127 brianR 119 
				AXIOMXPath axp = new AXIOMXPath(xpath);
120 
				InputStream is = res.getAntResource(null).getInputStream();
121 
				OMDocument sourcedoc = OMXMLBuilderFactory.createOMBuilder(is).getDocument();
122 
				OMDocument fragdoc = null;
123 
				if ((xmlFragment != null) && (new String(xmlFragment).length() > 0)) {
124 
					fragdoc = OMXMLBuilderFactory.createOMBuilder(
125 
							new StringReader("<XS>" + xmlFragment + "</XS>"))
114 brianR 126 
							.getDocument();
127 brianR 127 
				} else {
128 
					throw new XServicesFault("No xmldata to insert.");
129 
				}
114 brianR 130 
 
127 brianR 131 
				// Initialize XPath context
132 
				SimpleNamespaceContext context = createContext(nsList);
133 
				axp.setNamespaceContext(context);
134 
				axp.addNamespaces(fragdoc.getOMDocumentElement());
114 brianR 135 
 
127 brianR 136 
				OMDocument document = replaceNodes(sourcedoc, axp, fragdoc);
114 brianR 137 
 
127 brianR 138 
				StringWriter sw = new StringWriter();
139 
				XMLOutputFactory xof = XMLOutputFactory.newInstance();
140 
				XMLStreamWriter writer = xof.createXMLStreamWriter(sw);
141 
				document.serialize(writer);
114 brianR 142 
 
127 brianR 143 
				this.logger.trace(sw.getBuffer().toString());
144 
				return sw.getBuffer().toString();
145 
			} catch (JaxenException e) {
146 
				e.printStackTrace();
147 
				throw new XServicesFault(e);
148 
			} catch (XMLStreamException e) {
149 
				e.printStackTrace();
150 
				throw new XServicesFault(e);
151 
			} catch (IOException e) {
152 
				e.printStackTrace();
153 
				throw new XServicesFault(e);
114 brianR 154 
			}
155 
	}
156 
 
127 brianR 157 
	public String replaceNodes(String source, String encoding, NamespaceListType nsList, String xpath, String xmlFragment) throws XServicesFault {
158 
		encoding = validateEncoding(encoding);
114 brianR 159 
		try {
160 
			AXIOMXPath axp = new AXIOMXPath(xpath);
127 brianR 161 
			InputStream is = new ByteArrayInputStream(source.getBytes(encoding));
114 brianR 162 
			OMDocument sourcedoc = OMXMLBuilderFactory.createOMBuilder(is)
163 
					.getDocument();
164 
			OMDocument fragdoc = null;
165 
			if ((xmlFragment != null) && (new String(xmlFragment).length() > 0)) {
166 
				fragdoc = OMXMLBuilderFactory.createOMBuilder(
167 
						new StringReader("<XS>" + xmlFragment + "</XS>"))
168 
						.getDocument();
169 
			} else {
170 
				throw new XServicesFault("No xmldata to insert.");
171 
			}
172 
 
173 
			// Initialize XPath context
127 brianR 174 
			SimpleNamespaceContext context = createContext(nsList);
114 brianR 175 
			axp.setNamespaceContext(context);
176 
			axp.addNamespaces(fragdoc.getOMDocumentElement());
177 
 
178 
			OMDocument document = replaceNodes(sourcedoc, axp, fragdoc);
179 
 
180 
			StringWriter sw = new StringWriter();
181 
			XMLOutputFactory xof = XMLOutputFactory.newInstance();
182 
			XMLStreamWriter writer = xof.createXMLStreamWriter(sw);
183 
			document.serialize(writer);
184 
 
185 
			this.logger.trace(sw.getBuffer().toString());
186 
			return sw.getBuffer().toString();
187 
		} catch (JaxenException e) {
188 
			e.printStackTrace();
189 
			throw new XServicesFault(e);
190 
		} catch (XMLStreamException e) {
191 
			e.printStackTrace();
192 
			throw new XServicesFault(e);
127 brianR 193 
		} catch (UnsupportedEncodingException e) {
194 
			throw new XServicesFault(e);
114 brianR 195 
		}
196 
	}
197 
 
177 brianR 198 
	@RequiresPermissions("insertNodes")
127 brianR 199 
	public String insertNodes(String source, String encoding, NamespaceListType nsList, String xpath, String xmlFragment) throws XServicesFault {
200 
		encoding = validateEncoding(encoding);
114 brianR 201 
		try {
202 
			AXIOMXPath axp = new AXIOMXPath(xpath);
127 brianR 203 
			InputStream is = new ByteArrayInputStream(source.getBytes(encoding));
114 brianR 204 
			OMDocument sourcedoc = OMXMLBuilderFactory.createOMBuilder(is)
205 
					.getDocument();
206 
			OMDocument fragdoc = null;
207 
			if ((xmlFragment != null) && (new String(xmlFragment).length() > 0)) {
208 
				fragdoc = OMXMLBuilderFactory.createOMBuilder(
209 
						new StringReader("<XS>" + xmlFragment + "</XS>"))
210 
						.getDocument();
211 
			} else {
212 
				throw new XServicesFault("No xmldata to insert.");
213 
			}
214 
 
215 
			// Initialize XPath context
127 brianR 216 
			SimpleNamespaceContext context = createContext(nsList);
114 brianR 217 
			axp.setNamespaceContext(context);
218 
			axp.addNamespaces(fragdoc.getOMDocumentElement());
219 
 
220 
			OMDocument document = insertNodes(sourcedoc, axp, fragdoc);
221 
 
222 
			StringWriter sw = new StringWriter();
223 
			XMLOutputFactory xof = XMLOutputFactory.newInstance();
224 
			XMLStreamWriter writer = xof.createXMLStreamWriter(sw);
225 
			document.serialize(writer);
226 
 
227 
			this.logger.trace(sw.getBuffer().toString());
228 
			return sw.getBuffer().toString();
229 
		} catch (JaxenException e) {
230 
			e.printStackTrace();
231 
			throw new XServicesFault(e);
232 
		} catch (XMLStreamException e) {
233 
			e.printStackTrace();
234 
			throw new XServicesFault(e);
127 brianR 235 
		} catch (UnsupportedEncodingException e) {
236 
			throw new XServicesFault(e);
114 brianR 237 
		}
238 
	}
239 
 
240 
	public String wrapInCDATA(String data) throws XServicesFault {
241 
		String result ="";
242 
		String[] tokens = data.split("\\]\\]>", -1);
243 
 
244 
		for(int i=0; i<tokens.length; i++) {
245 
			result +=  tokens[i];
246 
			if (i+1 < tokens.length ) result += "]]]]><![CDATA[>";
247 
		}
248 
 
249 
		result = "<![CDATA[" + result + "]]>";
250 
		return result;
251 
	}
127 brianR 252 
 
253 
	public StringSplitType selectXPath(String source, String encoding, NamespaceListType nsList, String xpath) throws XServicesFault {
254 
		encoding = validateEncoding(encoding);
255 
		try {
256 
			StringSplitType rarray = new StringSplitType();
257 
			AXIOMXPath axp = new AXIOMXPath(xpath);
258 
			InputStream is = new ByteArrayInputStream(source.getBytes(encoding));
259 
			OMDocument sourcedoc = OMXMLBuilderFactory.createOMBuilder(is).getDocument();
260 
 
261 
			// Initialize XPath context
262 
			SimpleNamespaceContext context = createContext(nsList);
263 
 
264 
			axp.setNamespaceContext(context);
265 
			List results = axp.selectNodes(sourcedoc);
266 
			for(Object o : results) {
267 
				String text = null;
268 
 
269 
				if(o instanceof OMNode) {
270 
					switch (((OMNode)o).getType()) {
271 
						case OMNode.TEXT_NODE:
272 
							text = ((OMText)o).getText();
273 
							break;
274 
						case OMNode.COMMENT_NODE:
275 
							text = ((OMComment)o).getValue();
276 
							break;
277 
						case OMNode.PI_NODE:
278 
							text = ((OMProcessingInstruction)o).getValue();
279 
							break;
280 
						default:
281 
							StringWriter sw = new StringWriter();
282 
							XMLOutputFactory xof = XMLOutputFactory.newInstance();
283 
							XMLStreamWriter writer = xof.createXMLStreamWriter(sw);
284 
							((OMNode)o).serialize(writer);
285 
							writer.flush();
286 
							text = sw.toString();
287 
					}
288 
				} else if(o instanceof OMAttribute) {
289 
					text = ((OMAttribute)o).getAttributeValue();
290 
				} else {
291 
					text = String.valueOf(o);
292 
				}
293 
				rarray.addStringMatch(text);
294 
			}
295 
 
296 
 
297 
			return rarray;
298 
			} catch (JaxenException e) {
299 
			e.printStackTrace();
300 
			throw new XServicesFault(e);
301 
		} catch (XMLStreamException e) {
302 
				// TODO Auto-generated catch block
303 
			throw new XServicesFault(e.getMessage());
304 
			} catch (UnsupportedEncodingException e) {
305 
				throw new XServicesFault(e);
306 
		}
307 
	}
308 
 
309 
	public String setAttribute(String source, String encoding, NamespaceListType nsList, String xpath, AttributeType attr) throws XServicesFault {
310 
		encoding = validateEncoding(encoding);
311 
		try {
312 
			StringSplitType rarray = new StringSplitType();
313 
			AXIOMXPath axp = new AXIOMXPath(xpath);
314 
			InputStream is = new ByteArrayInputStream(source.getBytes(encoding));
315 
			OMDocument sourcedoc = OMXMLBuilderFactory.createOMBuilder(is).getDocument();
316 
			OMFactory fac = OMAbstractFactory.getOMFactory();
317 
 
318 
			// Initialize XPath context
319 
			SimpleNamespaceContext context = createContext(nsList);
320 
 
321 
			axp.setNamespaceContext(context);
322 
			List results = axp.selectNodes(sourcedoc);
323 
			for(Object o : results) {
324 
				String text = null;
325 
 
326 
				if(o instanceof OMNode) {
327 
					switch (((OMNode)o).getType()) {
328 
						case OMNode.ELEMENT_NODE:
329 
							OMElement node = ((OMElement)o);
330 
							if(attr.value == null) {
331 
								node.removeAttribute( node.getAttribute(new QName(attr.name)));
332 
							} else {
333 
								node.addAttribute(attr.name, attr.value, node.getNamespace());
334 
							}
335 
							break;
336 
						default:
337 
							throw new XServicesFault("XPath expression did not match an element node.");
338 
					}
339 
				} else {
340 
					throw new XServicesFault("XPath expression did not match a node.");
341 
				}
342 
			}
343 
 
344 
			StringWriter sw = new StringWriter();
345 
			XMLOutputFactory xof = XMLOutputFactory.newInstance();
346 
			XMLStreamWriter writer = xof.createXMLStreamWriter(sw);
347 
			sourcedoc.serialize(writer);
348 
			writer.flush();
349 
			return sw.toString();
350 
			} catch (JaxenException e) {
351 
			e.printStackTrace();
352 
			throw new XServicesFault(e);
353 
		} catch (XMLStreamException e) {
354 
				// TODO Auto-generated catch block
355 
			throw new XServicesFault(e.getMessage());
356 
			} catch (UnsupportedEncodingException e) {
357 
				throw new XServicesFault(e);
358 
		}
359 
	}
360 
 
114 brianR 361 
	private OMDocument insertNodes(OMDocument xmldocument, AXIOMXPath axp,OMDocument xmlfragment) throws XServicesFault {
362 
		List<?> olist = null;
363 
		try {
364 
			olist = axp.selectNodes(xmldocument.getOMDocumentElement());
365 
			this.logger.debug("XPath '" + axp.toString() + "' has "
366 
					+ olist.size() + " matches.");
367 
			this.logger.trace("XPath root expression is: '" + axp.debug()
368 
					+ "'.");
369 
		} catch (JaxenException e) {
370 
			throw new XServicesFault(e.getMessage(), e);
371 
		}
372 
		if (olist.size() == 0)
373 
			throw new XServicesFault(Messages.getString("XmlService.no_match",
374 
					new Object[] { axp.toString() }));
375 
 
376 
		// Prepare children to insert
377 
		xmlfragment.build();
378 
 
379 
		// Determine what has been matched
380 
		OMContainer match = null;
381 
		for (Object o : olist) {
382 
			Iterator<?> children = xmlfragment.getOMDocumentElement()
383 
					.getChildren();
384 
			if ((o instanceof OMNode)) {
385 
				OMNode node = (OMNode) o;
386 
				switch (node.getType()) {
387 
				case OMNode.ELEMENT_NODE:
388 
					if ((o instanceof OMElement))
389 
						match = (OMElement) o;
390 
					if ((o instanceof OMDocument))
391 
						match = ((OMDocument) o).getOMDocumentElement();
392 
					this.logger.debug(Messages.getString("XmlService.8"));
393 
					break;
394 
				case OMNode.TEXT_NODE:
395 
					match = ((OMText) o).getParent();
396 
					this.logger.debug(Messages.getString("XmlService.9"));
397 
					break;
398 
				case OMNode.COMMENT_NODE:
399 
					// match = node.getParent();
400 
					match = (OMContainer) node;
401 
					this.logger.debug(Messages.getString("XmlService.10"));
402 
					break;
403 
				default:
404 
					this.logger.error("XPath matched "
405 
							+ o.getClass().getCanonicalName() + " Node Type:"
406 
							+ node.getType());
407 
					this.logger.error(Messages.getString("XmlService.11"));
408 
					throw new XServicesFault(
409 
							Messages.getString("XmlService.12"));
410 
				}
411 
			} else {
412 
				this.logger.error("XPath matched "
413 
						+ o.getClass().getCanonicalName());
414 
				this.logger.error(Messages.getString("XmlService.11"));
415 
				throw new XServicesFault(Messages.getString("XmlService.12"));
416 
			}
417 
 
418 
			while (children.hasNext()) {
419 
				OMNode container = (OMNode) children.next();
420 
				match.addChild((OMNode) container.clone(new OMCloneOptions()));
421 
			}
422 
		}
423 
 
424 
		xmldocument.build();
425 
		return xmldocument;
426 
	}
427 
 
428 
 
429 
	private OMDocument replaceNodes(OMDocument xmldocument, AXIOMXPath axp, OMDocument xmlfragment) throws XServicesFault {
158 brianR 430 
 
114 brianR 431 
		List<?> olist = null;
432 
		try {
433 
			olist = axp.selectNodes(xmldocument.getOMDocumentElement());
434 
			this.logger.debug("XPath '" + axp.toString() + "' has "
435 
					+ olist.size() + " matches.");
436 
			this.logger.trace("XPath root expression is: '" + axp.debug()
437 
					+ "'.");
438 
		} catch (JaxenException e) {
439 
			throw new XServicesFault(e.getMessage(), e);
440 
		}
441 
		if (olist.size() == 0)
442 
			throw new XServicesFault(Messages.getString("XmlService.no_match",
443 
					new Object[] { axp.toString() }));
444 
 
445 
		// Prepare children to insert
446 
		xmlfragment.build();
447 
 
448 
		// Determine what has been matched
449 
		OMNode match = null;
450 
		for (Object o : olist) {
451 
			Iterator<?> children = xmlfragment.getOMDocumentElement()
452 
					.getChildren();
453 
			if ((o instanceof OMNode)) {
454 
				OMNode node = (OMNode) o;
455 
				switch (node.getType()) {
456 
				case OMNode.ELEMENT_NODE:
457 
					if ((o instanceof OMElement))
458 
						match = (OMElement) o;
459 
					if ((o instanceof OMDocument))
460 
						match = ((OMDocument) o).getOMDocumentElement();
461 
					this.logger.debug(Messages.getString("XmlService.8"));
462 
					break;
463 
				default:
464 
					this.logger.error("XPath matched "
465 
							+ o.getClass().getCanonicalName() + " Node Type:"
466 
							+ node.getType());
467 
					this.logger.error(Messages.getString("XmlService.11"));
468 
					throw new XServicesFault(
469 
							Messages.getString("XmlService.12"));
470 
				}
471 
			} else {
472 
				this.logger.error("XPath matched "
473 
						+ o.getClass().getCanonicalName());
474 
				this.logger.error(Messages.getString("XmlService.11"));
475 
				throw new XServicesFault(Messages.getString("XmlService.12"));
476 
			}
477 
 
478 
			while (children.hasNext()) {
479 
				OMNode container = (OMNode) children.next();
158 brianR 480 
				match.insertSiblingBefore((OMNode) container.clone(new OMCloneOptions()));
114 brianR 481 
			}
482 
			match.detach();
483 
		}
484 
		xmldocument.build();
485 
		return xmldocument;
486 
	}
127 brianR 487 
 
488 
	private SimpleNamespaceContext createContext(NamespaceListType nsList) {
489 
		// Initialize XPath context
490 
		SimpleNamespaceContext context = new SimpleNamespaceContext();
491 
		if(nsList != null) {
492 
			for (NamespaceType ns : nsList.getNamespaces()) {
493 
				context.addNamespace(ns.getPrefix(), ns.getUri().toString());
494 
				this.logger.debug(Messages.getString("XmlService.0")
495 
						+ ns.getPrefix() + "=\"" + ns.getUri().toString()
496 
						+ "\"'");
497 
			}
498 
		} else {
499 
			logger.debug("No namespaces defined.");
500 
		}
501 
		return context;
502 
	}
503 
 
504 
	private String validateEncoding(String encoding) throws XServicesFault {
505 
		if(encoding == null || encoding.equals("")) { encoding=Charset.defaultCharset().displayName(); }
506 
		try {
507 
			Charset.isSupported(encoding);
508 
		} catch (IllegalCharsetNameException e) {
509 
			throw new XServicesFault("Endcoding '"+encoding+"' is not supported by this JRE.");
510 
		}
511 
		logger.debug("Setting source xml string encoding to '"+encoding+"'");
512 
		return encoding;
513 
	}
158 brianR 514 
 
515 
 
114 brianR 516 
}