package org.opends.sdk.controls;
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import static com.sun.opends.sdk.messages.Messages.*;
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import static com.sun.opends.sdk.util.StaticUtils.*;
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import java.io.IOException;
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import org.opends.sdk.ByteString;
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import org.opends.sdk.DN;
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import org.opends.sdk.DecodeException;
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import org.opends.sdk.LocalizableMessage;
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import org.opends.sdk.asn1.ASN1;
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import org.opends.sdk.asn1.ASN1Reader;
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import org.opends.sdk.schema.Schema;
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import com.sun.opends.sdk.util.StaticUtils;
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import com.sun.opends.sdk.util.Validator;
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/**
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* This class implements version 2 of the proxied authorization control
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* as defined in RFC 4370. It makes it possible for one user to request
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* that an operation be performed under the authorization of another.
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* The target user is specified using an authorization ID, which may be
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* in the form "dn:" immediately followed by the DN of that user, or
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* "u:" followed by a user ID string.
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*/
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public class ProxiedAuthV2Control extends Control
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{
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/**
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* The OID for the proxied authorization v2 control.
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*/
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public static final String OID_PROXIED_AUTH_V2 = "2.16.840.1.113730.3.4.18";
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/**
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* ControlDecoder implentation to decode this control from a
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* ByteString.
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*/
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private static final class Decoder implements
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ControlDecoder<ProxiedAuthV2Control>
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{
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/**
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* {@inheritDoc}
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*/
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public ProxiedAuthV2Control decode(boolean isCritical,
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ByteString value, Schema schema) throws DecodeException
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{
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if (!isCritical)
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{
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LocalizableMessage message = ERR_PROXYAUTH2_CONTROL_NOT_CRITICAL.get();
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throw DecodeException.error(message);
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}
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if (value == null)
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{
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LocalizableMessage message = ERR_PROXYAUTH2_NO_CONTROL_VALUE.get();
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throw DecodeException.error(message);
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}
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ASN1Reader reader = ASN1.getReader(value);
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String authorizationID;
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try
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{
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if (reader.elementAvailable())
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{
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// Try the legacy encoding where the value is wrapped by an
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// extra octet string
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authorizationID = reader.readOctetStringAsString();
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}
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else
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{
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authorizationID = value.toString();
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}
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}
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catch (IOException e)
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{
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StaticUtils.DEBUG_LOG.throwing("ProxiedAuthV2Control.Decoder",
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"decode", e);
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LocalizableMessage message = ERR_PROXYAUTH2_CANNOT_DECODE_VALUE
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.get(getExceptionMessage(e));
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throw DecodeException.error(message, e);
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}
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return new ProxiedAuthV2Control(authorizationID);
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}
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public String getOID()
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{
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return OID_PROXIED_AUTH_V2;
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}
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}
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/**
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* The Control Decoder that can be used to decode this control.
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*/
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public static final ControlDecoder<ProxiedAuthV2Control> DECODER = new Decoder();
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// The authorization ID from the control value.
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private String authorizationID;
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/**
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* Creates a new instance of the proxied authorization v2 control with
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* the provided information.
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*
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* @param authorizationDN
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* The authorization DN.
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*/
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public ProxiedAuthV2Control(DN authorizationDN)
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{
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super(OID_PROXIED_AUTH_V2, true);
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Validator.ensureNotNull(authorizationID);
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this.authorizationID = "dn:" + authorizationDN.toString();
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}
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/**
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* Creates a new instance of the proxied authorization v2 control with
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* the provided information.
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*
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* @param authorizationID
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* The authorization ID.
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*/
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public ProxiedAuthV2Control(String authorizationID)
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{
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super(OID_PROXIED_AUTH_V2, true);
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Validator.ensureNotNull(authorizationID);
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this.authorizationID = authorizationID;
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}
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/**
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* Retrieves the authorization ID for this proxied authorization V2
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* control.
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*
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* @return The authorization ID for this proxied authorization V2
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* control.
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*/
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public String getAuthorizationID()
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{
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return authorizationID;
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}
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@Override
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public ByteString getValue()
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{
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return ByteString.valueOf(authorizationID);
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}
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@Override
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public boolean hasValue()
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{
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return true;
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}
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public ProxiedAuthV2Control setAuthorizationID(DN authorizationDN)
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{
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Validator.ensureNotNull(authorizationDN);
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this.authorizationID = "dn:" + authorizationDN.toString();
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return this;
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}
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public ProxiedAuthV2Control setAuthorizationID(String authorizationID)
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{
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Validator.ensureNotNull(authorizationID);
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this.authorizationID = authorizationID;
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return this;
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}
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/**
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* Appends a string representation of this proxied auth v2 control to
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* the provided buffer.
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*
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* @param buffer
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* The buffer to which the information should be appended.
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*/
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@Override
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public void toString(StringBuilder buffer)
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{
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buffer.append("ProxiedAuthorizationV2Control(oid=");
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buffer.append(getOID());
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buffer.append(", criticality=");
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buffer.append(isCritical());
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buffer.append(", authorizationDN=\"");
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buffer.append(authorizationID);
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buffer.append("\")");
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}
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}
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