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Exchange Web Services (EWS) Java API
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/*
* The MIT License
* Copyright (c) 2012 Microsoft Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package microsoft.exchange.webservices.data.credential;
import microsoft.exchange.webservices.data.core.EwsUtilities;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Calendar;
/**
* WSSecurityBasedCredentials is the base class for all credential classes using
* WS-Security.
*/
public abstract class WSSecurityBasedCredentials extends ExchangeCredentials {
/**
* The security token.
*/
private String securityToken;
/**
* The ews url.
*/
private URI ewsUrl;
protected static final String wsuTimeStampFormat =
"" +
"{0:yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'} " +
"{1:yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'} " +
" ";
//kavi-start
// WS-Security SecExt 1.0 Namespace (and the namespace prefix we will use
// for it).
/** The Constant WSSecuritySecExt10NamespacePrefix. */
//protected static final String WSSecuritySecExt10NamespacePrefix = "wsse";
/** The Constant WSSecuritySecExt10Namespace. */
//protected static final String WSSecuritySecExt10Namespace =
// "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd";
// WS-Addressing 1.0 Namespace (and the namespace prefix we will use for
// it).
/** The Constant WSAddressing10NamespacePrefix. */
//protected static final String WSAddressing10NamespacePrefix = "wsa";
/** The Constant WSAddressing10Namespace. */
//protected static final String WSAddressing10Namespace =
// "http://www.w3.org/2005/08/addressing";
//kavi end
// The WS-Addressing headers format string to use for adding the
// WS-Addressing headers.
// Fill-Ins: %s = Web method name; %s = EWS URL
/**
* The Constant WsAddressingHeadersFormat.
*/
protected static final String wsAddressingHeadersFormat =
"http://schemas.microsoft.com/exchange/services/2006/messages/%s "
+
"http://www.w3.org/2005/08/addressing/anonymous " +
"%s ";
// The WS-Security header format string to use for adding the WS-Security
// header.
// Fill-Ins:
// %s = EncryptedData block (the token)
/**
* The Constant WsSecurityHeaderFormat.
*/
protected static final String wsSecurityHeaderFormat =
"" +
" %s" + // EncryptedData (token)
" ";
private boolean addTimestamp;
// / Path suffix for WS-Security endpoint.
/**
* The Constant WsSecurityPathSuffix.
*/
protected static final String wsSecurityPathSuffix = "/wssecurity";
/**
* Initializes a new instance of the WSSecurityBasedCredentials class.
*/
protected WSSecurityBasedCredentials() {
}
/**
* Initializes a new instance of the WSSecurityBasedCredentials class.
*
* @param securityToken The security token.
*/
protected WSSecurityBasedCredentials(String securityToken) {
this.securityToken = securityToken;
}
/**
* Initializes a new instance of the WSSecurityBasedCredentials class.
*
* @param securityToken The security token.
* @param addTimestamp Timestamp should be added.
*/
protected WSSecurityBasedCredentials(String securityToken, boolean addTimestamp) {
this.securityToken = securityToken;
this.addTimestamp = addTimestamp;
}
/**
* This method is called to pre-authenticate credential before a service
* request is made.
*/
@Override public void preAuthenticate() {
// Nothing special to do here.
}
/**
* Emit the extra namespace aliases used for WS-Security and WS-Addressing.
*
* @param writer the writer
* @throws XMLStreamException the XML stream exception
*/
@Override public void emitExtraSoapHeaderNamespaceAliases(XMLStreamWriter writer)
throws XMLStreamException {
writer.writeAttribute(
"xmlns",
"",
EwsUtilities.WSSecuritySecExtNamespacePrefix,
EwsUtilities.WSSecuritySecExtNamespace);
writer.writeAttribute(
"xmlns",
"",
EwsUtilities.WSAddressingNamespacePrefix,
EwsUtilities.WSAddressingNamespace);
}
/**
* Serialize the WS-Security and WS-Addressing SOAP headers.
*
* @param writer the writer
* @param webMethodName the Web method being called
* @throws XMLStreamException the XML stream exception
*/
@Override public void serializeExtraSoapHeaders(XMLStreamWriter writer, String webMethodName) throws XMLStreamException {
this.serializeWSAddressingHeaders(writer, webMethodName);
this.serializeWSSecurityHeaders(writer);
}
/**
* Creates the WS-Addressing headers necessary to send with an outgoing request.
*
* @param xmlWriter the XML writer to serialize the headers to
* @param webMethodName the Web method being called
* @throws XMLStreamException the XML stream exception
*/
private void serializeWSAddressingHeaders(XMLStreamWriter xmlWriter,
String webMethodName) throws XMLStreamException {
EwsUtilities.ewsAssert(webMethodName != null,
"WSSecurityBasedCredentials.SerializeWSAddressingHeaders",
"Web method name cannot be null!");
EwsUtilities.ewsAssert(this.ewsUrl != null,
"WSSecurityBasedCredentials.SerializeWSAddressingHeaders",
"EWS Url cannot be null!");
// Format the WS-Addressing headers.
String wsAddressingHeaders = String.format(
WSSecurityBasedCredentials.wsAddressingHeadersFormat,
webMethodName, this.ewsUrl);
// And write them out...
xmlWriter.writeCharacters(wsAddressingHeaders);
}
/**
* Creates the WS-Security header necessary to send with an outgoing request.
*
* @param xmlWriter The XML writer to serialize the headers to
* @throws XMLStreamException the XML stream exception
*/
@Override public void serializeWSSecurityHeaders(XMLStreamWriter xmlWriter)
throws XMLStreamException {
EwsUtilities.ewsAssert(this.securityToken != null,
"WSSecurityBasedCredentials.SerializeWSSecurityHeaders",
"Security token cannot be null!");
//
// 2007-09-20T01:13:10.468Z
// 2007-09-20T01:18:10.468Z
//
//
String timestamp = null;
if (this.addTimestamp) {
Calendar utcNow = Calendar.getInstance();
utcNow.add(Calendar.MINUTE, 5);
timestamp = String.format(WSSecurityBasedCredentials.wsuTimeStampFormat, utcNow, utcNow);
}
// Format the WS-Security header based on all the information we have.
String wsSecurityHeader = String.format(
WSSecurityBasedCredentials.wsSecurityHeaderFormat,
timestamp + this.securityToken);
// And write the header out...
xmlWriter.writeCharacters(wsSecurityHeader);
}
/**
* Adjusts the URL based on the credential.
*
* @param url The URL.
* @return Adjust URL.
* @throws java.net.URISyntaxException the uRI syntax exception
*/
@Override public URI adjustUrl(URI url) throws URISyntaxException {
return new URI(getUriWithoutWSSecurity(url) + WSSecurityBasedCredentials.wsSecurityPathSuffix);
}
/**
* Gets the security token.
*/
protected String getSecurityToken() {
return this.securityToken;
}
/**
* Sets the security token.
*/
protected void setSecurityToken(String value) {
securityToken = value;
}
/**
* Gets the EWS URL.
*/
protected URI getEwsUrl() {
return this.ewsUrl;
}
/**
* Sets the EWS URL.
*/
protected void setEwsUrl(URI value) {
ewsUrl = value;
}
}