/*
* Copyright 2009-2011 Jon Stevens et al. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under the License.
*/
package com.googlecode.sardine;
import com.googlecode.sardine.model.Creationdate;
import com.googlecode.sardine.model.Getcontentlength;
import com.googlecode.sardine.model.Getcontenttype;
import com.googlecode.sardine.model.Getetag;
import com.googlecode.sardine.model.Getlastmodified;
import com.googlecode.sardine.model.Propstat;
import com.googlecode.sardine.model.Resourcetype;
import com.googlecode.sardine.model.Response;
import com.googlecode.sardine.util.SardineUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Element;
import javax.xml.namespace.QName;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Describes a resource on a remote server. This could be a directory or an actual file.
*
* @author jonstevens
* @version $Id: DavResource.java 352 2012-11-26 18:13:19Z latchkey $
*/
public class DavResource
{
private static Logger log = LoggerFactory.getLogger(DavResource.class);
/**
* The default content-type if {@link Getcontenttype} is not set in
* the {@link com.googlecode.sardine.model.Multistatus} response.
*/
public static final String DEFAULT_CONTENT_TYPE = "application/octetstream";
/**
* The default content-lenght if {@link Getcontentlength} is not set in
* the {@link com.googlecode.sardine.model.Multistatus} response.
*/
public static final long DEFAULT_CONTENT_LENGTH = -1;
/**
* content-type for {@link com.googlecode.sardine.model.Collection}.
*/
public static final String HTTPD_UNIX_DIRECTORY_CONTENT_TYPE = "httpd/unix-directory";
/**
* Path component seperator
*/
private static final String SEPARATOR = "/";
private final URI href;
private final Date creation;
private final Date modified;
private final String contentType;
private final String etag;
private final Long contentLength;
private final Map<QName, String> customProps;
/**
* Represents a webdav response block.
*
* @param href URI to the resource as returned from the server
* @throws java.net.URISyntaxException If parsing the href from the response element fails
*/
protected DavResource(String href, Date creation, Date modified, String contentType,
Long contentLength, String etag, Map<QName, String> customProps) throws URISyntaxException
{
this.href = new URI(href);
this.creation = creation;
this.modified = modified;
this.contentType = contentType;
this.contentLength = contentLength;
this.etag = etag;
this.customProps = customProps;
}
/**
* Converts the given {@link Response} to a {@link com.googlecode.sardine.DavResource}.
*
* @param response The response complex type of the multistatus
* @throws java.net.URISyntaxException If parsing the href from the response element fails
*/
public DavResource(Response response) throws URISyntaxException
{
this.href = new URI(response.getHref().get(0));
this.creation = SardineUtil.parseDate(this.getCreationDate(response));
this.modified = SardineUtil.parseDate(this.getModifiedDate(response));
this.contentType = this.getContentType(response);
this.contentLength = this.getContentLength(response);
this.etag = this.getEtag(response);
this.customProps = this.getCustomProps(response);
}
/**
* Retrieves modifieddate from props. If it is not available return null.
*
* @param response The response complex type of the multistatus
* @return Null if not found in props
*/
private String getModifiedDate(Response response)
{
List<Propstat> list = response.getPropstat();
if (list.isEmpty())
{
return null;
}
for (Propstat propstat : list)
{
if (propstat.getProp() != null) {
Getlastmodified glm = propstat.getProp().getGetlastmodified();
if ((glm != null) && (glm.getContent().size() == 1))
{
return glm.getContent().get(0);
}
}
}
return null;
}
/**
* Retrieves creationdate from props. If it is not available return null.
*
* @param response The response complex type of the multistatus
* @return Null if not found in props
*/
private String getCreationDate(Response response)
{
List<Propstat> list = response.getPropstat();
if (list.isEmpty())
{
return null;
}
for (Propstat propstat : list)
{
if (propstat.getProp() != null) {
Creationdate gcd = propstat.getProp().getCreationdate();
if ((gcd != null) && (gcd.getContent().size() == 1))
{
return gcd.getContent().get(0);
}
}
}
return null;
}
/**
* Retrieves the content-type from prop or set it to {@link #DEFAULT_CONTENT_TYPE}. If isDirectory always set the content-type to
* {@link #HTTPD_UNIX_DIRECTORY_CONTENT_TYPE}.
*
* @param response The response complex type of the multistatus
* @return the content type.
*/
private String getContentType(Response response)
{
// Make sure that directories have the correct content type.
List<Propstat> list = response.getPropstat();
if (list.isEmpty())
{
return null;
}
for (Propstat propstat : list)
{
if (propstat.getProp() != null) {
Resourcetype resourcetype = propstat.getProp().getResourcetype();
if ((resourcetype != null) && (resourcetype.getCollection() != null))
{
// Need to correct the contentType to identify as a directory.
return HTTPD_UNIX_DIRECTORY_CONTENT_TYPE;
}
else
{
Getcontenttype gtt = propstat.getProp().getGetcontenttype();
if ((gtt != null) && (gtt.getContent().size() == 1))
{
return gtt.getContent().get(0);
}
}
}
}
return DEFAULT_CONTENT_TYPE;
}
/**
* Retrieves content-length from props. If it is not available return {@link #DEFAULT_CONTENT_LENGTH}.
*
* @param response The response complex type of the multistatus
* @return contentlength
*/
private long getContentLength(Response response)
{
List<Propstat> list = response.getPropstat();
if (list.isEmpty())
{
return DEFAULT_CONTENT_LENGTH;
}
for (Propstat propstat : list)
{
if (propstat.getProp() != null) {
Getcontentlength gcl = propstat.getProp().getGetcontentlength();
if ((gcl != null) && (gcl.getContent().size() == 1))
{
try
{
return Long.parseLong(gcl.getContent().get(0));
}
catch (NumberFormatException e)
{
log.warn(String.format("Failed to parse content length %s", gcl.getContent().get(0)));
}
}
}
}
return DEFAULT_CONTENT_LENGTH;
}
/**
* Retrieves content-length from props. If it is not available return {@link #DEFAULT_CONTENT_LENGTH}.
*
* @param response The response complex type of the multistatus
* @return contentlength
*/
private String getEtag(Response response)
{
List<Propstat> list = response.getPropstat();
if (list.isEmpty())
{
return null;
}
for (Propstat propstat : list)
{
if (propstat.getProp() != null) {
Getetag e = propstat.getProp().getGetetag();
if ((e != null) && (e.getContent().size() == 1))
{
return e.getContent().get(0);
}
}
}
return null;
}
/**
* Creates a simple complex Map from the given custom properties of a response.
* This implementation does take namespaces into account.
*
* @param response The response complex type of the multistatus
* @return Custom properties
*/
private Map<QName, String> getCustomProps(Response response)
{
List<Propstat> list = response.getPropstat();
if (list.isEmpty())
{
return null;
}
Map<QName, String> customPropsMap = new HashMap<QName, String>();
for (Propstat propstat : list)
{
if (propstat.getProp() != null) {
List<Element> props = propstat.getProp().getAny();
for (Element element : props)
{
String namespace = element.getNamespaceURI();
if (namespace == null)
{
customPropsMap.put(new QName(SardineUtil.DEFAULT_NAMESPACE_URI,
element.getLocalName(),
SardineUtil.DEFAULT_NAMESPACE_PREFIX),
element.getTextContent());
}
else
{
if (element.getPrefix() == null)
{
customPropsMap.put(new QName(element.getNamespaceURI(),
element.getLocalName()),
element.getTextContent());
}
else
{
customPropsMap.put(new QName(element.getNamespaceURI(),
element.getLocalName(),
element.getPrefix()),
element.getTextContent());
}
}
}
}
}
return customPropsMap;
}
/**
* @return Timestamp
*/
public Date getCreation()
{
return this.creation;
}
/**
* @return Timestamp
*/
public Date getModified()
{
return this.modified;
}
/**
* @return MIME Type
*/
public String getContentType()
{
return this.contentType;
}
/**
* @return Size
*/
public Long getContentLength()
{
return this.contentLength;
}
/**
* @return Fingerprint
*/
public String getEtag()
{
return this.etag;
}
/**
* Implementation assumes that every resource with a content type of <code>httpd/unix-directory</code> is a directory.
*
* @return True if this resource denotes a directory
*/
public boolean isDirectory()
{
return HTTPD_UNIX_DIRECTORY_CONTENT_TYPE.equals(this.contentType);
}
/**
* @return Additional metadata. This implementation does not take namespaces into account.
*/
public Map<String, String> getCustomProps()
{
Map<String, String> local = new HashMap<String, String>();
Map<QName, String> properties = this.getCustomPropsNS();
for (QName key : properties.keySet())
{
local.put(key.getLocalPart(), properties.get(key));
}
return local;
}
/**
* @return Additional metadata with namespace informations
*/
public Map<QName, String> getCustomPropsNS()
{
return this.customProps;
}
/**
* @return URI of the resource.
*/
public URI getHref()
{
return this.href;
}
/**
* Last path component.
*
* @return The name of the resource URI decoded. An empty string if this resource denotes a directory.
* @see #getHref()
*/
public String getName()
{
String path = this.href.getPath();
try
{
if (path.endsWith(SEPARATOR))
{
path = path.substring(0, path.length() - 1);
}
return path.substring(path.lastIndexOf('/') + 1);
}
catch (StringIndexOutOfBoundsException e)
{
log.warn(String.format("Failed to parse name from path %s", path));
return null;
}
}
/**
* @return Path component of the URI of the resource.
* @see #getHref()
*/
public String getPath()
{
return this.href.getPath();
}
/**
* @see #getPath()
*/
@Override
public String toString()
{
return this.getPath();
}
}