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