Package com.unboundid.ldap.sdk
Class CRAMMD5BindRequest
- java.lang.Object
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- com.unboundid.ldap.sdk.LDAPRequest
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- com.unboundid.ldap.sdk.BindRequest
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- com.unboundid.ldap.sdk.SASLBindRequest
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- com.unboundid.ldap.sdk.CRAMMD5BindRequest
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- All Implemented Interfaces:
ReadOnlyLDAPRequest
,java.io.Serializable
,javax.security.auth.callback.CallbackHandler
@NotMutable @ThreadSafety(level=NOT_THREADSAFE) public final class CRAMMD5BindRequest extends SASLBindRequest implements javax.security.auth.callback.CallbackHandler
This class provides a SASL CRAM-MD5 bind request implementation as described in draft-ietf-sasl-crammd5. The CRAM-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 DIGEST-MD5, but does not provide as many options, and provides slightly weaker protection because the client does not contribute any of the random data used during bind processing.
Elements included in a CRAM-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.
- Password -- The clear-text password for the target user.
Example
The following example demonstrates the process for performing a CRAM-MD5 bind against a directory server with a username of "john.doe" and a password of "password":CRAMMD5BindRequest bindRequest = new CRAMMD5BindRequest("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:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description static java.lang.String
CRAMMD5_MECHANISM_NAME
The name for the CRAM-MD5 SASL mechanism.-
Fields inherited from class com.unboundid.ldap.sdk.SASLBindRequest
CRED_TYPE_SASL
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Fields inherited from class com.unboundid.ldap.sdk.BindRequest
VERSION_ELEMENT
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Constructor Summary
Constructors Constructor Description CRAMMD5BindRequest(java.lang.String authenticationID, byte[] password)
Creates a new SASL CRAM-MD5 bind request with the provided authentication ID and password.CRAMMD5BindRequest(java.lang.String authenticationID, byte[] password, Control... controls)
Creates a new SASL CRAM-MD5 bind request with the provided authentication ID, password, and set of controls.CRAMMD5BindRequest(java.lang.String authenticationID, ASN1OctetString password)
Creates a new SASL CRAM-MD5 bind request with the provided authentication ID and password.CRAMMD5BindRequest(java.lang.String authenticationID, ASN1OctetString password, Control... controls)
Creates a new SASL CRAM-MD5 bind request with the provided authentication ID, password, and set of controls.CRAMMD5BindRequest(java.lang.String authenticationID, java.lang.String password)
Creates a new SASL CRAM-MD5 bind request with the provided authentication ID and password.CRAMMD5BindRequest(java.lang.String authenticationID, java.lang.String password, Control... controls)
Creates a new SASL CRAM-MD5 bind request with the provided authentication ID, password, and set of controls.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description CRAMMD5BindRequest
duplicate()
Creates a new instance of this LDAP request that may be modified without impacting this request.CRAMMD5BindRequest
duplicate(Control[] controls)
Creates a new instance of this LDAP request that may be modified without impacting this request.java.lang.String
getAuthenticationID()
Retrieves the authentication ID for this bind request.int
getLastMessageID()
Retrieves the message ID for the last LDAP message sent using this request.byte[]
getPasswordBytes()
Retrieves the bytes that comprise the the password for this bind request.java.lang.String
getPasswordString()
Retrieves the string representation of the password for this bind request.CRAMMD5BindRequest
getRebindRequest(java.lang.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.java.lang.String
getSASLMechanismName()
Retrieves the name of the SASL mechanism used in this SASL bind request.void
handle(javax.security.auth.callback.Callback[] callbacks)
Handles any necessary callbacks required for SASL authentication.protected BindResult
process(LDAPConnection connection, int depth)
Sends this bind request to the target server over the provided connection and returns the corresponding response.void
toCode(java.util.List<java.lang.String> lineList, java.lang.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.void
toString(java.lang.StringBuilder buffer)
Appends a string representation of this request to the provided buffer.-
Methods inherited from class com.unboundid.ldap.sdk.SASLBindRequest
getBindType, responseReceived, sendBindRequest, sendMessage
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Methods inherited from class com.unboundid.ldap.sdk.BindRequest
getOperationType
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Methods inherited from class com.unboundid.ldap.sdk.LDAPRequest
followReferrals, getControl, getControlList, getControls, getIntermediateResponseListener, getReferralConnector, getResponseTimeoutMillis, hasControl, hasControl, setFollowReferrals, setIntermediateResponseListener, setReferralConnector, setResponseTimeoutMillis, toString
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Field Detail
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CRAMMD5_MECHANISM_NAME
public static final java.lang.String CRAMMD5_MECHANISM_NAME
The name for the CRAM-MD5 SASL mechanism.- See Also:
- Constant Field Values
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Constructor Detail
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CRAMMD5BindRequest
public CRAMMD5BindRequest(java.lang.String authenticationID, java.lang.String password)
Creates a new SASL CRAM-MD5 bind request with the provided authentication ID and password. It will not include any controls.- Parameters:
authenticationID
- The authentication ID for this bind request. It must not benull
.password
- The password for this bind request. It must not benull
.
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CRAMMD5BindRequest
public CRAMMD5BindRequest(java.lang.String authenticationID, byte[] password)
Creates a new SASL CRAM-MD5 bind request with the provided authentication ID and password. It will not include any controls.- Parameters:
authenticationID
- The authentication ID for this bind request. It must not benull
.password
- The password for this bind request. It must not benull
.
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CRAMMD5BindRequest
public CRAMMD5BindRequest(java.lang.String authenticationID, ASN1OctetString password)
Creates a new SASL CRAM-MD5 bind request with the provided authentication ID and password. It will not include any controls.- Parameters:
authenticationID
- The authentication ID for this bind request. It must not benull
.password
- The password for this bind request. It must not benull
.
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CRAMMD5BindRequest
public CRAMMD5BindRequest(java.lang.String authenticationID, java.lang.String password, Control... controls)
Creates a new SASL CRAM-MD5 bind request with the provided authentication ID, password, and set of controls.- Parameters:
authenticationID
- The authentication ID for this bind request. It must not benull
.password
- The password for this bind request. It must not benull
.controls
- The set of controls to include in the request.
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CRAMMD5BindRequest
public CRAMMD5BindRequest(java.lang.String authenticationID, byte[] password, Control... controls)
Creates a new SASL CRAM-MD5 bind request with the provided authentication ID, password, and set of controls.- Parameters:
authenticationID
- The authentication ID for this bind request. It must not benull
.password
- The password for this bind request. It must not benull
.controls
- The set of controls to include in the request.
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CRAMMD5BindRequest
public CRAMMD5BindRequest(java.lang.String authenticationID, ASN1OctetString password, Control... controls)
Creates a new SASL CRAM-MD5 bind request with the provided authentication ID, password, and set of controls.- Parameters:
authenticationID
- The authentication ID for this bind request. It must not benull
.password
- The password for this bind request. It must not benull
.controls
- The set of controls to include in the request.
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Method Detail
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getSASLMechanismName
public java.lang.String getSASLMechanismName()
Retrieves the name of the SASL mechanism used in this SASL bind request.- Specified by:
getSASLMechanismName
in classSASLBindRequest
- Returns:
- The name of the SASL mechanism used in this SASL bind request.
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getAuthenticationID
public java.lang.String getAuthenticationID()
Retrieves the authentication ID for this bind request.- Returns:
- The authentication ID for this bind request.
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getPasswordString
public java.lang.String getPasswordString()
Retrieves the string representation of the password for this bind request.- Returns:
- The string representation of the password for this bind request.
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getPasswordBytes
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.
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process
protected BindResult process(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 classBindRequest
- 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.
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getRebindRequest
public CRAMMD5BindRequest getRebindRequest(java.lang.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 classBindRequest
- 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.
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handle
@InternalUseOnly public void handle(javax.security.auth.callback.Callback[] callbacks)
Handles any necessary callbacks required for SASL authentication.- Specified by:
handle
in interfacejavax.security.auth.callback.CallbackHandler
- Parameters:
callbacks
- The set of callbacks to be handled.
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getLastMessageID
public int getLastMessageID()
Retrieves the message ID for the last LDAP message sent using this request.- Overrides:
getLastMessageID
in classSASLBindRequest
- 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.
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duplicate
public CRAMMD5BindRequest duplicate()
Creates a new instance of this LDAP request that may be modified without impacting this request.- Specified by:
duplicate
in interfaceReadOnlyLDAPRequest
- Specified by:
duplicate
in classBindRequest
- Returns:
- A new instance of this LDAP request that may be modified without impacting this request.
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duplicate
public CRAMMD5BindRequest duplicate(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 interfaceReadOnlyLDAPRequest
- Specified by:
duplicate
in classBindRequest
- 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.
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toString
public void toString(java.lang.StringBuilder buffer)
Appends a string representation of this request to the provided buffer.- Specified by:
toString
in interfaceReadOnlyLDAPRequest
- Specified by:
toString
in classLDAPRequest
- Parameters:
buffer
- The buffer to which to append a string representation of this request.
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toCode
public void toCode(java.util.List<java.lang.String> lineList, java.lang.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 interfaceReadOnlyLDAPRequest
- Overrides:
toCode
in classSASLBindRequest
- 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 isnull
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 (iftrue
), or just to generate the request (iffalse
).
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