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1
19
20 package com.maverick.http;
21
22 import java.io.ByteArrayOutputStream  ;
23 import java.io.IOException ;
24 import java.text.SimpleDateFormat ;
25 import java.util.Date ;
26 import java.util.Enumeration ;
27 import java.util.NoSuchElementException ;
28 import java.util.Properties ;
29 import java.util.StringTokenizer ;
30 import java.util.Vector ;
31
32 import com.maverick.util.URLUTF8Encoder;
33
34 import net.n3.nanoxml.IXMLElement;
35 import net.n3.nanoxml.IXMLParser;
36 import net.n3.nanoxml.IXMLReader;
37 import net.n3.nanoxml.StdXMLReader;
38 import net.n3.nanoxml.XMLParserFactory;
39
40
44 public class MultiStatusResponse {
45
46 static org.apache.commons.logging.Log log = org.apache.commons.logging.LogFactory.getLog(MultiStatusResponse.class);
48
50 String href;
51 int status;
52 String version;
53 String reason;
54 Properties properties;
55 boolean collection = false;
56
57 static SimpleDateFormat format = new SimpleDateFormat ("yyyy-MM-dd HH:mm:ss");
59 MultiStatusResponse(IXMLElement element) throws IOException {
60 if (element.getFirstChildNamed("href", element.getNamespace()) == null) throw new IOException (Messages.getString("MultiStatusResponse.unexpectedHref"));
63 href = URLUTF8Encoder.decode(element.getFirstChildNamed("href", element.getNamespace()).getContent());
65 IXMLElement props = element.getFirstChildNamed("propstat", element.getNamespace());
67 if (props == null)
68 throw new IOException (Messages.getString("MultiStatusResponse.noPropertyElements"));
70 if (props.getFirstChildNamed("status", element.getNamespace()) == null) throw new IOException (Messages.getString("MultiStatusResponse.unexpectedStatusResponse"));
73 String status = props.getFirstChildNamed("status", element.getNamespace()).getContent();
75 StringTokenizer tokens = new StringTokenizer (status, " ", false); reason = "";
78 try {
79 version = tokens.nextToken();
80 this.status = Integer.parseInt(tokens.nextToken());
81
82 while (tokens.hasMoreTokens()) {
83 reason += tokens.nextToken() + " "; }
85 reason = URLDecoder.decode(reason.trim());
86 } catch (NoSuchElementException e) {
87 throw new IOException (Messages.getString("MultiStatusResponse.failedToReadHTTPResponseHeader")); } catch (NumberFormatException e) {
89 throw new IOException (Messages.getString("MultiStatusResponse.failedToReadHTTPResponseHeader")); }
91
92 properties = new Properties ();
94
95 if (this.status == 404)
97 return;
98
99 props = props.getFirstChildNamed("prop", props.getNamespace());
101 if (props == null)
102 throw new IOException (Messages.getString("MultiStatusResponse.noPropElementsInPropStat"));
104 IXMLElement child;
105
106 for (Enumeration e = props.getChildren().elements(); e.hasMoreElements();) {
107 child = (IXMLElement) e.nextElement();
108
109 if (child.getName().equalsIgnoreCase("resourcetype")) { if (child.getChildrenNamed("collection") != null) collection = true;
112 } else {
113 properties.put(child.getName().toLowerCase(), child.getContent() == null ? "" : child.getContent()); }
115 }
116
117 }
118
119 public long getContentLength() {
120 if (properties.containsKey("getcontentlength")) { return Long.parseLong(properties.getProperty("getcontentlength")); } else
123 return 0;
124 }
125
126 private long processDate(String date) {
127
128 long retval = 0;
129 try {
130 retval = Date.parse(date);
131 } catch (Throwable t) {
132
133 try {
134
139 return 0; } catch (Throwable t2) {
141 }
142 }
143
144 return retval;
145 }
146
147 public long getCreationDate() {
148
149 if (properties.containsKey("creationdate")) { return processDate(properties.getProperty("creationdate")); } else
152 return 0;
153 }
154
155 public long getLastModified() {
156
157 if (properties.containsKey("getlastmodified")) { return processDate(properties.getProperty("getlastmodified")); } else
160 return 0;
161 }
162
163 public String getContentType() {
164 return getProperty("getcontenttype"); }
166
167 public String getDisplayName() {
168 if (properties.containsKey("displayname")) return getProperty("displayname"); else {
171 int idx = href.lastIndexOf('/');
172 if (idx > -1) {
173 return href.substring(idx + 1);
174 } else
175 return href;
176 }
177 }
178
179 public int getStatus() {
180 return status;
181 }
182
183 public String getHref() {
184 return href;
185 }
186
187 public boolean isCollection() {
188 return collection;
189 }
190
191 public String getProperty(String property) {
192 return properties.getProperty(property.toLowerCase());
193 }
194
195 public static MultiStatusResponse[] createResponse(HttpResponse response) throws IOException {
196
197 if (response.getStatus() != 207) {
198 throw new IOException (Messages.getString("MultiStatusResponse.not207")); }
200
201 ByteArrayOutputStream out = new ByteArrayOutputStream ();
202 int read;
203 byte[] buf = new byte[4096];
204 while ((read = response.getInputStream().read(buf)) > -1) {
205 out.write(buf, 0, read);
206 }
207
208 if (log.isDebugEnabled())
210 log.debug(new String (out.toByteArray()));
211
213 try {
214 IXMLParser parser = XMLParserFactory.createDefaultXMLParser();
215 IXMLReader reader = StdXMLReader.stringReader(new String (out.toByteArray(), "UTF8")); parser.setReader(reader);
217 IXMLElement rootElement = (IXMLElement) parser.parse();
218
219 if (!rootElement.getName().equalsIgnoreCase("multistatus")) throw new IOException (Messages.getString("MultiStatusResponse.invalidDavRootElement") + rootElement.getName());
222 Vector children = rootElement.getChildrenNamed("response", rootElement.getNamespace()); Vector responses = new Vector ();
225
226 for (Enumeration e = children.elements(); e.hasMoreElements();) {
227 responses.addElement(new MultiStatusResponse((IXMLElement) e.nextElement()));
228 }
229
230 MultiStatusResponse[] array = new MultiStatusResponse[responses.size()];
231 responses.copyInto(array);
232 return array;
233
234 } catch (Exception ex) {
235 log.error(Messages.getString("MultiStatusResponse.failedToProcessMultistatusResponse"), ex); throw new IOException (ex.getMessage());
239 }
240
241 }
242
243 }
244 |
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