Package com.unboundid.ldap.sdk

Class DIGESTMD5BindRequest

java.lang.Object
com.unboundid.ldap.sdk.LDAPRequest
com.unboundid.ldap.sdk.BindRequest
com.unboundid.ldap.sdk.SASLBindRequest
com.unboundid.ldap.sdk.DIGESTMD5BindRequest
All Implemented Interfaces:
ReadOnlyLDAPRequest, Serializable, CallbackHandler
@NotMutable @ThreadSafety(level=NOT_THREADSAFE) public final class DIGESTMD5BindRequest extends SASLBindRequest implements CallbackHandler
This class provides a SASL DIGEST-MD5 bind request implementation as described in RFC 2831. The DIGEST-MD5 mechanism can be used to authenticate over an insecure channel without exposing the credentials (although it requires that the server have access to the clear-text password). It is similar to CRAM-MD5, but provides better security by combining random data from both the client and the server, and allows for greater security and functionality, including the ability to specify an alternate authorization identity and the ability to use data integrity or confidentiality protection.

Elements included in a DIGEST-MD5 bind request include:
  • Authentication ID -- A string which identifies the user that is attempting to authenticate. It should be an "authzId" value as described in section 5.2.1.8 of RFC 4513. That is, it should be either "dn:" followed by the distinguished name of the target user, or "u:" followed by the username. If the "u:" form is used, then the mechanism used to resolve the provided username to an entry may vary from server to server.
  • Authorization ID -- An optional string which specifies an alternate authorization identity that should be used for subsequent operations requested on the connection. Like the authentication ID, the authorization ID should use the "authzId" syntax.
  • Realm -- An optional string which specifies the realm into which the user should authenticate.
  • Password -- The clear-text password for the target user.

Example

The following example demonstrates the process for performing a DIGEST-MD5 bind against a directory server with a username of "john.doe" and a password of "password": 
 DIGESTMD5BindRequest bindRequest =
      new DIGESTMD5BindRequest("u:john.doe", "password");
 BindResult bindResult;
 try
 {
   bindResult = connection.bind(bindRequest);
   // If we get here, then the bind was successful.
 }
 catch (LDAPException le)
 {
   // The bind failed for some reason.
   bindResult = new BindResult(le.toLDAPResult());
   ResultCode resultCode = le.getResultCode();
   String errorMessageFromServer = le.getDiagnosticMessage();
 }
See Also:

  • Field Details

  • Constructor Details

    • DIGESTMD5BindRequest

      public DIGESTMD5BindRequest(@NotNull String authenticationID, @NotNull String password)
      Creates a new SASL DIGEST-MD5 bind request with the provided authentication ID and password. It will not include an authorization ID, a realm, or any controls.
      Parameters:
      authenticationID - The authentication ID for this bind request. It must not be null.
      password - The password for this bind request. It must not be null.

    • DIGESTMD5BindRequest

      public DIGESTMD5BindRequest(@NotNull String authenticationID, @NotNull byte[] password)
      Creates a new SASL DIGEST-MD5 bind request with the provided authentication ID and password. It will not include an authorization ID, a realm, or any controls.
      Parameters:
      authenticationID - The authentication ID for this bind request. It must not be null.
      password - The password for this bind request. It must not be null.

    • DIGESTMD5BindRequest

      public DIGESTMD5BindRequest(@NotNull String authenticationID, @NotNull ASN1OctetString password)
      Creates a new SASL DIGEST-MD5 bind request with the provided authentication ID and password. It will not include an authorization ID, a realm, or any controls.
      Parameters:
      authenticationID - The authentication ID for this bind request. It must not be null.
      password - The password for this bind request. It must not be null.

    • DIGESTMD5BindRequest

      public DIGESTMD5BindRequest(@NotNull String authenticationID, @Nullable String authorizationID, @NotNull String password, @Nullable String realm, @Nullable Control... controls)
      Creates a new SASL DIGEST-MD5 bind request with the provided information.
      Parameters:
      authenticationID - The authentication ID for this bind request. It must not be null.
      authorizationID - The authorization ID for this bind request. It may be null if there will not be an alternate authorization identity.
      password - The password for this bind request. It must not be null.
      realm - The realm to use for the authentication. It may be null if the server supports a default realm.
      controls - The set of controls to include in the request.

    • DIGESTMD5BindRequest

      public DIGESTMD5BindRequest(@NotNull String authenticationID, @Nullable String authorizationID, @NotNull byte[] password, @Nullable String realm, @Nullable Control... controls)
      Creates a new SASL DIGEST-MD5 bind request with the provided information.
      Parameters:
      authenticationID - The authentication ID for this bind request. It must not be null.
      authorizationID - The authorization ID for this bind request. It may be null if there will not be an alternate authorization identity.
      password - The password for this bind request. It must not be null.
      realm - The realm to use for the authentication. It may be null if the server supports a default realm.
      controls - The set of controls to include in the request.

    • DIGESTMD5BindRequest

      public DIGESTMD5BindRequest(@NotNull String authenticationID, @Nullable String authorizationID, @NotNull ASN1OctetString password, @Nullable String realm, @Nullable Control... controls)
      Creates a new SASL DIGEST-MD5 bind request with the provided information.
      Parameters:
      authenticationID - The authentication ID for this bind request. It must not be null.
      authorizationID - The authorization ID for this bind request. It may be null if there will not be an alternate authorization identity.
      password - The password for this bind request. It must not be null.
      realm - The realm to use for the authentication. It may be null if the server supports a default realm.
      controls - The set of controls to include in the request.

    • DIGESTMD5BindRequest

      public DIGESTMD5BindRequest(@NotNull DIGESTMD5BindRequestProperties properties, @Nullable Control... controls)
      Creates a new SASL DIGEST-MD5 bind request with the provided set of properties.
      Parameters:
      properties - The properties to use for this
      controls - The set of controls to include in the request.

  • Method Details

    • getSASLMechanismName

      @NotNull public String getSASLMechanismName()
      Retrieves the name of the SASL mechanism used in this SASL bind request.
      Specified by:
      getSASLMechanismName in class SASLBindRequest
      Returns:
      The name of the SASL mechanism used in this SASL bind request.

    • getAuthenticationID

      @NotNull public String getAuthenticationID()
      Retrieves the authentication ID for this bind request.
      Returns:
      The authentication ID for this bind request.

    • getAuthorizationID

      @Nullable public String getAuthorizationID()
      Retrieves the authorization ID for this bind request, if any.
      Returns:
      The authorization ID for this bind request, or null if there should not be a separate authorization identity.

    • getPasswordString

      @NotNull public String getPasswordString()
      Retrieves the string representation of the password for this bind request.
      Returns:
      The string representation of the password for this bind request.

    • getPasswordBytes

      @NotNull public byte[] getPasswordBytes()
      Retrieves the bytes that comprise the the password for this bind request.
      Returns:
      The bytes that comprise the password for this bind request.

    • getRealm

      @Nullable public String getRealm()
      Retrieves the realm for this bind request, if any.
      Returns:
      The realm for this bind request, or null if none was defined and the server should use the default realm.

    • getAllowedQoP

      @NotNull public List<SASLQualityOfProtection> getAllowedQoP()
      Retrieves the list of allowed qualities of protection that may be used for communication that occurs on the connection after the authentication has completed, in order from most preferred to least preferred.
      Returns:
      The list of allowed qualities of protection that may be used for communication that occurs on the connection after the authentication has completed, in order from most preferred to least preferred.

    • process

      @NotNull protected BindResult process(@NotNull LDAPConnection connection, int depth) throws LDAPException
      Sends this bind request to the target server over the provided connection and returns the corresponding response.
      Specified by:
      process in class BindRequest
      Parameters:
      connection - The connection to use to send this bind request to the server and read the associated response.
      depth - The current referral depth for this request. It should always be one for the initial request, and should only be incremented when following referrals.
      Returns:
      The bind response read from the server.
      Throws:
      LDAPException - If a problem occurs while sending the request or reading the response.

    • getRebindRequest

      @NotNull public DIGESTMD5BindRequest getRebindRequest(@NotNull String host, int port)
      Retrieves a bind request that may be used to re-bind using the same credentials authentication type and credentials as previously used to perform the initial bind. This may be used in an attempt to automatically re-establish a connection that is lost, or potentially when following a referral to another directory instance.

      It is recommended that all bind request types which implement this capability be implemented so that the elements needed to create a new request are immutable. If this is not done, then changes made to a bind request object may alter the authentication/authorization identity and/or credentials associated with that request so that a rebind request created from it will not match the original request used to authenticate on a connection.
      Overrides:
      getRebindRequest in class BindRequest
      Parameters:
      host - The address of the directory server to which the connection is established.
      port - The port of the directory server to which the connection is established.
      Returns:
      A bind request that may be used to re-bind using the same authentication type and credentials as previously used to perform the initial bind, or null to indicate that automatic re-binding is not supported for this type of bind request.

    • handle

      @InternalUseOnly public void handle(@NotNull Callback[] callbacks)
      Handles any necessary callbacks required for SASL authentication.
      Specified by:
      handle in interface CallbackHandler
      Parameters:
      callbacks - The set of callbacks to be handled.

    • getLastMessageID

      public int getLastMessageID()
      Retrieves the message ID for the last LDAP message sent using this request.
      Overrides:
      getLastMessageID in class SASLBindRequest
      Returns:
      The message ID for the last LDAP message sent using this request, or -1 if it no LDAP messages have yet been sent using this request.

    • duplicate

      @NotNull public DIGESTMD5BindRequest duplicate()
      Creates a new instance of this LDAP request that may be modified without impacting this request.
      Specified by:
      duplicate in interface ReadOnlyLDAPRequest
      Specified by:
      duplicate in class BindRequest
      Returns:
      A new instance of this LDAP request that may be modified without impacting this request.

    • duplicate

      @NotNull public DIGESTMD5BindRequest duplicate(@Nullable Control[] controls)
      Creates a new instance of this LDAP request that may be modified without impacting this request. The provided controls will be used for the new request instead of duplicating the controls from this request.
      Specified by:
      duplicate in interface ReadOnlyLDAPRequest
      Specified by:
      duplicate in class BindRequest
      Parameters:
      controls - The set of controls to include in the duplicate request.
      Returns:
      A new instance of this LDAP request that may be modified without impacting this request.

    • toString

      public void toString(@NotNull StringBuilder buffer)
      Appends a string representation of this request to the provided buffer.
      Specified by:
      toString in interface ReadOnlyLDAPRequest
      Specified by:
      toString in class LDAPRequest
      Parameters:
      buffer - The buffer to which to append a string representation of this request.

    • toCode

      public void toCode(@NotNull List<String> lineList, @NotNull String requestID, int indentSpaces, boolean includeProcessing)
      Appends a number of lines comprising the Java source code that can be used to recreate this request to the given list.
      Specified by:
      toCode in interface ReadOnlyLDAPRequest
      Overrides:
      toCode in class SASLBindRequest
      Parameters:
      lineList - The list to which the source code lines should be added.
      requestID - The name that should be used as an identifier for the request. If this is null or empty, then a generic ID will be used.
      indentSpaces - The number of spaces that should be used to indent the generated code. It must not be negative.
      includeProcessing - Indicates whether the generated code should include code required to actually process the request and handle the result (if true), or just to generate the request (if false).