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1 /*
2  * The Apache Software License, Version 1.1
3  *
4  *
5  * Copyright (c) 2000 The Apache Software Foundation. All rights
6  * reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in
17  * the documentation and/or other materials provided with the
18  * distribution.
19  *
20  * 3. The end-user documentation included with the redistribution,
21  * if any, must include the following acknowledgment:
22  * "This product includes software developed by the
23  * Apache Software Foundation (http://www.apache.org/)."
24  * Alternately, this acknowledgment may appear in the software itself,
25  * if and wherever such third-party acknowledgments normally appear.
26  *
27  * 4. The names "SOAP" and "Apache Software Foundation" must
28  * not be used to endorse or promote products derived from this
29  * software without prior written permission. For written
30  * permission, please contact apache@apache.org.
31  *
32  * 5. Products derived from this software may not be called "Apache",
33  * nor may "Apache" appear in their name, without prior written
34  * permission of the Apache Software Foundation.
35  *
36  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
37  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
38  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
39  * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
40  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
42  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
43  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
44  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
45  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
46  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47  * SUCH DAMAGE.
48  * ====================================================================
49  *
50  * This software consists of voluntary contributions made by many
51  * individuals on behalf of the Apache Software Foundation and was
52  * originally based on software copyright (c) 2000, International
53  * Business Machines, Inc., http://www.apache.org. For more
54  * information on the Apache Software Foundation, please see
55  * <http://www.apache.org/>.
56  */
57
58 package org.apache.soap;
59
60 import java.io.*;
61 import java.util.*;
62 import javax.xml.parsers.*;
63 import org.w3c.dom.*;
64 import org.apache.soap.util.xml.*;
65
66 /**
67  * <em>SOAP</em> utilities.
68  *
69  * @author Sanjiva Weerawarana (sanjiva@watson.ibm.com)
70  * @author Matthew J. Duftler (duftler@us.ibm.com)
71  * @author Michael Spreitzer (mspreitz@us.ibm.com)
72  */
73 public class Utils
74 {
75   public static String JavaDoc cleanString(String JavaDoc orig)
76   {
77     if (orig == null)
78     {
79       return "";
80     }
81
82     StringBuffer JavaDoc strBuf = new StringBuffer JavaDoc();
83     char[] chars = orig.toCharArray();
84
85     for (int i = 0; i < chars.length; i++)
86     {
87       switch (chars[i])
88       {
89         case '&' : strBuf.append("&amp;");
90                     break;
91         case '\"' : strBuf.append("&quot;");
92                     break;
93         case '\'' : strBuf.append("&apos;");
94                     break;
95         case '<' : strBuf.append("&lt;");
96                     break;
97         case '>' : strBuf.append("&gt;");
98                     break;
99         default : strBuf.append(chars[i]);
100                     break;
101       }
102     }
103
104     return strBuf.toString();
105   }
106
107   public static void marshallNode(Node node, Writer sink)
108   {
109     DOM2Writer.serializeAsXML(node, sink);
110   }
111
112   /**
113    * Given a throwable, return a vector containing a single entry
114    * which is an Element with one text node containing the stack
115    * trace.
116    */
117   public static Vector buildFaultDetailsFromThrowable (Throwable JavaDoc t)
118   {
119     Vector details = new Vector();
120     DocumentBuilder xdb = XMLParserUtils.getXMLDocBuilder();
121     Document doc = xdb.newDocument();
122     Element elem = doc.createElement("stackTrace");
123     StringWriter sw = new StringWriter();
124     PrintWriter pw = new PrintWriter(sw);
125     t.printStackTrace(pw);
126     pw.close();
127     Text tn = doc.createTextNode(cleanString(sw.toString()));
128     elem.appendChild(tn);
129     details.addElement(elem);
130     return details;
131   }
132   
133   /**
134    * Check for mustUnderstand headers, and throw a mustUnderstand
135    * Fault if we find any.
136    */
137   public static void checkMustUnderstands(Header header) throws SOAPException
138   {
139     Vector entries = header.getHeaderEntries();
140
141     for (int i = 0; i < entries.size(); i++)
142     {
143       Element el = (Element)entries.elementAt(i);
144       String JavaDoc val = el.getAttributeNS(Constants.NS_URI_SOAP_ENV,
145                                      Constants.ATTR_MUST_UNDERSTAND);
146
147       if (val != null && val.equals("1"))
148       {
149         throw new SOAPException("mustUnderstand",
150                                 "Didn't understand header '" +
151                                 el.getLocalName() + "'");
152       }
153     }
154   }
155 }
156
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