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1
10 package org.mmbase.bridge.jsp.taglib.util;
11
12 import java.util.*;
13 import javax.servlet.jsp.PageContext  ;
14 import javax.servlet.jsp.JspTagException ;
15 import javax.servlet.http.*;
16 import org.mmbase.bridge.jsp.taglib.TaglibException;
17 import org.mmbase.util.logging.Logger;
18 import org.mmbase.util.logging.Logging;
19 import org.apache.commons.fileupload.*;
20
21
26
27 public class MultiPart {
28 private static final Logger log = Logging.getLoggerInstance(MultiPart.class);
29
30 static String MULTIPARTREQUEST_KEY = "__multipart";
31
32 public static boolean isMultipart(PageContext pageContext) {
33 String ct = ((HttpServletRequest)pageContext.getRequest()).getContentType();
34 if (ct == null) {
35 return false;
36 }
37 return (ct.startsWith("multipart/"));
38 }
39
40 public static MMultipartRequest getMultipartRequest(PageContext pageContext) {
41 MMultipartRequest multipartRequest = (MMultipartRequest)pageContext.getAttribute(MULTIPARTREQUEST_KEY, PageContext.REQUEST_SCOPE);
42 if (multipartRequest == null) {
43 log.debug("Creating new MultipartRequest");
44 multipartRequest = new MMultipartRequest((HttpServletRequest)pageContext.getRequest(), ContextContainer.getDefaultCharacterEncoding(pageContext));
45 log.debug("have it");
46
47 if (log.isDebugEnabled()) {
48 if (multipartRequest != null) {
49 Iterator paramNames = multipartRequest.getParameterNames();
50 StringBuffer params = new StringBuffer ();
51 while (paramNames.hasNext()) {
52 params.append(paramNames.next()).append(",");
53 }
54 log.debug("multipart parameters: " + params);
55 } else {
56 log.debug("not a multipart request");
57 }
58 }
59 pageContext.setAttribute(MULTIPARTREQUEST_KEY, multipartRequest, PageContext.REQUEST_SCOPE);
60 } else {
61 log.debug("Found multipart request on pageContext" + multipartRequest);
62 }
63 return multipartRequest;
64 }
65
66 static public class MMultipartRequest {
67
68 private Map parametersMap = new HashMap();
69 private String coding = null;
70
71 MMultipartRequest(HttpServletRequest req, String c) {
72 try {
73 DiskFileUpload fu = new DiskFileUpload();
74 fu.setHeaderEncoding("ISO-8859-1"); List fileItems = fu.parseRequest(req);
76 for (Iterator i = fileItems.iterator(); i.hasNext(); ) {
77 FileItem fi = (FileItem)i.next();
78 if (fi.isFormField()) {
79 String value;
80 try {
81 value = fi.getString("ISO-8859-1");
82 } catch(java.io.UnsupportedEncodingException uee) {
83 log.error("could not happen, ISO-8859-1 is supported");
84 value = fi.getString();
85 }
86 Object oldValue = parametersMap.get(fi.getFieldName());
87 if (oldValue == null ) {
88 parametersMap.put(fi.getFieldName(), value);
89 } else if (!(oldValue instanceof FileItem)) {
90 List values;
91 if (oldValue instanceof String ) {
92 values = new ArrayList();
93 values.add(oldValue);
94 } else {
95 values = (List)oldValue;
96 }
97 values.add(value);
98 parametersMap.put(fi.getFieldName(), values);
99 }
100 } else {
101 parametersMap.put(fi.getFieldName(), fi);
102 }
103 }
104 } catch (FileUploadException e) {
105 log.error(e.getMessage(), e);
106 throw new RuntimeException (e);
107 }
108 coding = c;
109 log.debug("Created with encoding: " + coding);
110 }
111
112
117 public byte[] getBytes(String param) throws JspTagException {
118 log.debug("Getting bytes for " + param);
119 Object value = parametersMap.get(param);
120 if (value instanceof FileItem) {
121 try {
122 return ((FileItem)value).get();
123 } catch (Exception e) {
124 throw new TaglibException(e);
125 }
126 } else {
127 return null;
128 }
129 }
130 public FileItem getFileItem(String param) throws JspTagException {
131 log.debug("Getting outputstream for " + param);
132 Object value = parametersMap.get(param);
133 if (value instanceof FileItem) {
134 try {
135 return (FileItem)value;
136 } catch (Exception e) {
137 throw new TaglibException(e);
138 }
139 } else {
140 return null;
141 }
142 }
143
144
149 protected String encodeBytesAsString(byte[] data) throws JspTagException {
150 String encoding = coding;
151 byte[] xmlbytes = new byte[60];
153 int sz = data.length;
154 if (sz > 60) sz = 60;
155 System.arraycopy(data, 0, xmlbytes, 0, sz);
156 String xmltext = new String (xmlbytes);
157 if (xmltext.startsWith("<?xml")) {
158 int i = xmltext.indexOf("encoding");
159 log.debug("i=*" + i + "*");
160 if (i > 0) {
161 int j = xmltext.indexOf("?>", i);
162 log.debug("j=*" + j + "*");
163 if (j > i) {
164 encoding = xmltext.substring(i + 8, j).trim();
166 encoding = encoding.substring(1).trim();
168 encoding = encoding.substring(1, encoding.length() - 1).trim();
170 }
171 }
172 }
173 try {
174 return new String (data, encoding);
175 } catch (java.io.UnsupportedEncodingException e) {
176 throw new TaglibException(e);
177 }
178 }
179
180
183 public boolean isFile(String param) {
184 Object value = parametersMap.get(param);
185 return value instanceof FileItem;
186 }
187
188
195 public Object getParameterValues(String param) throws JspTagException {
196 Object value = parametersMap.get(param);
198
200 if (value instanceof FileItem) {
201 try {
202 return encodeBytesAsString(((FileItem)value).get());
203 } catch (Exception e) {
204 throw new TaglibException(e);
205 }
206 } else {
207 return value;
208 }
209 }
210
211 public Iterator getParameterNames() {
212 return parametersMap.keySet().iterator();
213 }
214 }
215
216 }
217 |
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