org.apache.hadoop.hbase.security.visibility

Class DefaultVisibilityLabelServiceImpl

java.lang.Object

org.apache.hadoop.hbase.security.visibility.DefaultVisibilityLabelServiceImpl

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, VisibilityLabelService

@InterfaceAudience.Private
public class DefaultVisibilityLabelServiceImpl
extends Object
implements VisibilityLabelService

Constructor Summary

Constructors

Constructor and Description
DefaultVisibilityLabelServiceImpl()

Method Summary

Methods

Modifier and Type	Method and Description
OperationStatus[]	addLabels(List<byte[]> labels) Adds the set of labels into the system.
protected void	addSystemLabel(HRegion region, Map<String,Integer> labels, Map<String,List<Integer>> userAuths)
OperationStatus[]	clearAuths(byte[] user, List<byte[]> authLabels) Removes given labels from user's globally authorized list of labels.
List<Tag>	createVisibilityExpTags(String visExpression, boolean withSerializationFormat, boolean checkAuths) Creates tags corresponding to given visibility expression.
protected Pair<Map<String,Integer>,Map<String,List<Integer>>>	extractLabelsAndAuths(List<List<Cell>> labelDetails)
List<String>	getAuths(byte[] user, boolean systemCall)
org.apache.hadoop.conf.Configuration	getConf()
protected List<List<Cell>>	getExistingLabelsWithAuths()
protected List<String>	getSystemAndSuperUsers()
VisibilityExpEvaluator	getVisibilityExpEvaluator(Authorizations authorizations) Creates VisibilityExpEvaluator corresponding to given Authorizations.
boolean	havingSystemAuth(byte[] user) System checks for user auth during admin operations.
void	init(RegionCoprocessorEnvironment e) System calls this after opening of regions.
protected boolean	isReadFromSuperUser()
boolean	matchVisibility(List<Tag> putVisTags, Byte putTagsFormat, List<Tag> deleteVisTags, Byte deleteTagsFormat) System uses this for deciding whether a Cell can be deleted by matching visibility expression in Delete mutation and the cell in consideration.
OperationStatus[]	setAuths(byte[] user, List<byte[]> authLabels) Sets given labels globally authorized for the user.
void	setConf(org.apache.hadoop.conf.Configuration conf)
protected void	updateZk(boolean labelAddition)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultVisibilityLabelServiceImpl

public DefaultVisibilityLabelServiceImpl()

Method Detail

setConf

public void setConf(org.apache.hadoop.conf.Configuration conf)

Specified by:

setConf in interface org.apache.hadoop.conf.Configurable

getConf

public org.apache.hadoop.conf.Configuration getConf()

Specified by:

getConf in interface org.apache.hadoop.conf.Configurable

init

public void init(RegionCoprocessorEnvironment e)
          throws IOException

Description copied from interface: VisibilityLabelService

System calls this after opening of regions. Gives a chance for the VisibilityLabelService to so any initialization logic.

Specified by:

init in interface VisibilityLabelService

Parameters:

e - the region coprocessor env

Throws:

IOException

getExistingLabelsWithAuths

protected List<List<Cell>> getExistingLabelsWithAuths()
                                               throws IOException

Throws:

IOException

extractLabelsAndAuths

protected Pair<Map<String,Integer>,Map<String,List<Integer>>> extractLabelsAndAuths(List<List<Cell>> labelDetails)

addSystemLabel

protected void addSystemLabel(HRegion region,
                  Map<String,Integer> labels,
                  Map<String,List<Integer>> userAuths)
                       throws IOException

Throws:

IOException

getSystemAndSuperUsers

protected List<String> getSystemAndSuperUsers()
                                       throws IOException

Throws:

IOException

addLabels

public OperationStatus[] addLabels(List<byte[]> labels)
                            throws IOException

Description copied from interface: VisibilityLabelService

Adds the set of labels into the system.

Specified by:

addLabels in interface VisibilityLabelService

Parameters:

labels - Labels to add to the system.

Returns:

OperationStatus for each of the label addition

Throws:

IOException

setAuths

public OperationStatus[] setAuths(byte[] user,
                         List<byte[]> authLabels)
                           throws IOException

Description copied from interface: VisibilityLabelService

Sets given labels globally authorized for the user.

Specified by:

setAuths in interface VisibilityLabelService

Parameters:

user - The authorizing user

authLabels - Labels which are getting authorized for the user

Returns:

OperationStatus for each of the label auth addition

Throws:

IOException

clearAuths

public OperationStatus[] clearAuths(byte[] user,
                           List<byte[]> authLabels)
                             throws IOException

Description copied from interface: VisibilityLabelService

Removes given labels from user's globally authorized list of labels.

Specified by:

clearAuths in interface VisibilityLabelService

Parameters:

user - The user whose authorization to be removed

authLabels - Labels which are getting removed from authorization set

Returns:

OperationStatus for each of the label auth removal

Throws:

IOException

getAuths

public List<String> getAuths(byte[] user,
                    boolean systemCall)
                      throws IOException

Specified by:

getAuths in interface VisibilityLabelService

Parameters:

user - Name of the user whose authorization to be retrieved

systemCall - Whether a system or user originated call.

Returns:

Visibility labels authorized for the given user.

Throws:

IOException

createVisibilityExpTags

public List<Tag> createVisibilityExpTags(String visExpression,
                                boolean withSerializationFormat,
                                boolean checkAuths)
                                  throws IOException

Description copied from interface: VisibilityLabelService

Creates tags corresponding to given visibility expression.
Note: This will be concurrently called from multiple threads and implementation should take care of thread safety.

Specified by:

createVisibilityExpTags in interface VisibilityLabelService

Parameters:

visExpression - The Expression for which corresponding Tags to be created.

withSerializationFormat - specifies whether a tag, denoting the serialization version of the tags, to be added in the list. When this is true make sure to add the serialization format Tag also. The format tag value should be byte type.

checkAuths - denotes whether to check individual labels in visExpression against user's global auth label.

Returns:

The list of tags corresponds to the visibility expression. These tags will be stored along with the Cells.

Throws:

IOException

updateZk

protected void updateZk(boolean labelAddition)
                 throws IOException

Throws:

IOException

getVisibilityExpEvaluator

public VisibilityExpEvaluator getVisibilityExpEvaluator(Authorizations authorizations)
                                                 throws IOException

Description copied from interface: VisibilityLabelService

Creates VisibilityExpEvaluator corresponding to given Authorizations.
Note: This will be concurrently called from multiple threads and implementation should take care of thread safety.

Specified by:

getVisibilityExpEvaluator in interface VisibilityLabelService

Parameters:

authorizations - Authorizations for the read request

Returns:

The VisibilityExpEvaluator corresponding to the given set of authorization labels.

Throws:

IOException

isReadFromSuperUser

protected boolean isReadFromSuperUser()
                               throws IOException

Throws:

IOException

havingSystemAuth

public boolean havingSystemAuth(byte[] user)
                         throws IOException

Description copied from interface: VisibilityLabelService

System checks for user auth during admin operations. (ie. Label add, set/clear auth). The operation is allowed only for users having system auth. Also during read, if the requesting user has system auth, he can view all the data irrespective of its labels.

Specified by:

havingSystemAuth in interface VisibilityLabelService

Parameters:

user - User for whom system auth check to be done.

Returns:

true if the given user is having system/super auth

Throws:

IOException

matchVisibility

public boolean matchVisibility(List<Tag> putVisTags,
                      Byte putTagsFormat,
                      List<Tag> deleteVisTags,
                      Byte deleteTagsFormat)
                        throws IOException

Description copied from interface: VisibilityLabelService

System uses this for deciding whether a Cell can be deleted by matching visibility expression in Delete mutation and the cell in consideration. Also system passes the serialization format of visibility tags in Put and Delete.
Note: This will be concurrently called from multiple threads and implementation should take care of thread safety.

Specified by:

matchVisibility in interface VisibilityLabelService

Parameters:

putVisTags - The visibility tags present in the Put mutation

putTagsFormat - The serialization format for the Put visibility tags. A null value for this format means the tags are written with unsorted label ordinals

deleteVisTags - - The visibility tags in the delete mutation (the specified Cell Visibility)

deleteTagsFormat - The serialization format for the Delete visibility tags. A null value for this format means the tags are written with unsorted label ordinals

Returns:

true if matching tags are found

Throws:

IOException

See Also:

VisibilityConstants.SORTED_ORDINAL_SERIALIZATION_FORMAT