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CCM NG: PermissionManager finished 

git-svn-id: https://svn.libreccm.org/ccm/ccm_ng@3548 8810af33-2d31-482b-a856-94f89814c4df
pull/2/head
jensp 2015-08-05 11:46:01 +00:00
parent b065abf3bf
commit 6407178b45
7 changed files with 202 additions and 81 deletions
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117
ccm-core/src/main/java/org/libreccm/core/PermissionManager.java
View File

@ -31,17 +31,23 @@ import javax.inject.Inject;
public class PermissionManager {
@Inject
@SuppressWarnings("PMD.LongVariable") //Nothing wrong with this name
private transient PermissionRepository permissionRepository;
@Inject
@SuppressWarnings("PMD.LongVariable") //Nothing wrong with this name
private transient PrivilegeRepository privilegeRepository;
@Inject
@SuppressWarnings("PMD.LongVariable") //Nothing wrong with this name
private transient CcmObjectRepository ccmObjectRepository;
@Inject
private transient SubjectRepository subjectRepository;
@Inject
private transient UserRepository userRepository;
/**
* Creates a new permission granting the provided {@code privilege} on the
* provided {@code object} to the provided {@code subject}. If the
@ -57,6 +63,16 @@ public class PermissionManager {
public void grantPermission(final Privilege privilege,
final CcmObject object,
final Subject subject) {
if (privilege == null) {
throw new IllegalArgumentException(
"Illegal argument 'null' provided for parameter privilege.");
}
if (subject == null) {
throw new IllegalArgumentException(
"Illegal argument 'null' provided for parameter subject");
}
if (!isPermitted(privilege, object, subject)) {
final Permission permission = new Permission();
permission.setGrantedPrivilege(privilege);
@ -110,6 +126,11 @@ public class PermissionManager {
* Checks if the the provided {@code subject} has a permission granting the
* provided {@code privilege} on the provided {@code object}.
*
* The method will also check if the subject has a permission granting the
* {@code admin} privilege on the provided object or on all objects. The
* {@code admin} privilege implies that the user is granted all other
* privileges on the object.
*
* If the provided subject is {@code null} the method will try to retrieve
* the public user from the database. If there is no public user the method
* will return {@code false}.
@ -128,53 +149,105 @@ public class PermissionManager {
public boolean isPermitted(final Privilege privilege,
final CcmObject object,
final Subject subject) {
if (subject instanceof User) {
return isPermitted(privilege, object, (User) subject);
} else if (subject instanceof Group) {
return isPermitted(privilege, object, (Group) subject);
if (privilege == null) {
throw new IllegalArgumentException(
"Illegal value 'null' provided for parameter privilege");
}
//Check if the current subject is null. If yes try to retrieve the
//public user
Subject subjectObj = null;
if (subject == null) {
final User publicUser = userRepository.retrievePublicUser();
if (publicUser == null) {
//If the public user is not available an null value for the
//subject parameter is an illegal argument.
throw new IllegalArgumentException(
"Illegal value 'null' provided for parameter privilege");
} else {
subjectObj = publicUser;
}
} else {
//Subject is not null. Use provided subject
subjectObj = subject;
}
//Depending if the subject is a user or a group delegate to the correct
//method. For users we have to check the permissions of the groups the
//user is member of also, for group we don't have.
if (subjectObj instanceof User) {
return isPermitted(privilege, object, (User) subjectObj);
} else if (subjectObj instanceof Group) {
return isPermitted(privilege, object, (Group) subjectObj);
} else {
//For unknown subclasses of subject return false.
return false;
}
}
public boolean isPermitted(final Privilege privilege,
/**
* Checks if a user has a permission granting a privilege on an object. If
* the provided {@code object} is {@code null} the method will only check
* for wildcard permission (permissions for all objects).
*
* @param privilege The privilege. Can't be null.
* @param object The object. Can be null.
* @param user The user. Can't be null.
*
* @return {@code true} if the provided {@code user} has a permission
* granting the provided privilege for the provided object,
* {@code false} if not.
*/
@SuppressWarnings("PMD.CyclomaticComplexity")
private boolean isPermitted(final Privilege privilege,
final CcmObject object,
final User user) {
boolean result;
boolean result = false;
final Privilege admin = privilegeRepository.retrievePrivilege(
Privilege.ADMIN);
final List<Permission> directPermissions = permissionRepository
.findPermissionsForUserPrivilegeAndObject(user, privilege, object);
result = !directPermissions.isEmpty();
//Check if the there is direct permission granting the provided
//privilege on the provided object. If the object is null or the
//privilege is the admin privilege this check is not performed.
if (object != null && !privilege.equals(admin)) {
final List<Permission> permissions = permissionRepository
.findPermissionsForUserPrivilegeAndObject(user, privilege,
object);
result = !permissions.isEmpty();
}
if (!result) {
//Check for an wildcard permission (a permission for all objects) for
//the provided privilege. This check is only performed when result is
//still false the provided privilege is not the admin privilege.
if (!result && !privilege.equals(admin)) {
final List<Permission> permissions = permissionRepository
.findPermissionsForUserPrivilegeAndObject(user, privilege, null);
result = !permissions.isEmpty();
}
if (!result) {
final Privilege admin = privilegeRepository.retrievePrivilege(
"admin");
if (admin != null) {
//Check for a permission granting the admin privilege on the provided
//object. This check is only performed if result is still false,
//the admin variable is not null (null means that there is no admin
//privilege) and the provided object is not null.
if (!result && admin != null && object != null) {
final List<Permission> permissions = permissionRepository
.findPermissionsForUserPrivilegeAndObject(user,
privilege,
admin,
object);
result = !permissions.isEmpty();
}
}
if (!result) {
final Privilege admin = privilegeRepository.retrievePrivilege(
"admin");
if (admin != null) {
//Check for a permission granting the admin privilege systemwide. This
//check in only performed if result is still false and admin is not null.
if (!result && admin != null) {
final List<Permission> permissions = permissionRepository
.findPermissionsForUserPrivilegeAndObject(user,
privilege,
admin,
null);
result = !permissions.isEmpty();
}
}
return result;
}

3
ccm-core/src/main/java/org/libreccm/core/Privilege.java
View File

@ -63,6 +63,9 @@ public class Privilege implements Serializable {
private static final long serialVersionUID = -3986038536996049440L;
//Constant for the admin privilege.
public static final String ADMIN = "admin";
@Id
@Column(name = "privilege_id")
@GeneratedValue(strategy = GenerationType.AUTO)

73
ccm-core/src/test/java/org/libreccm/core/PermissionManagerTest.java
View File

@ -208,7 +208,7 @@ public class PermissionManagerTest {
@UsingDataSet("datasets/org/libreccm/core/PermissionManagerTest/"
+ "data.json")
@InSequence(10)
public void isPermittedWebmaster() {
public void isPermittedWebmasterAdmin() {
final User webmaster = userRepository.findByScreenName("webmaster");
final Map<String, CcmObject> testObjects = retrieveTestObjects();
final Map<String, Privilege> privileges = retrievePrivileges();
@ -224,10 +224,55 @@ public class PermissionManagerTest {
expected.put(testObjects.get(TEST_OBJECT_8), true);
verifyIsPermitted(webmaster, privileges.get(ADMIN), expected);
}
@Test
@UsingDataSet("datasets/org/libreccm/core/PermissionManagerTest/"
+ "data.json")
@InSequence(11)
public void isPermittedWebmasterRead() {
final User webmaster = userRepository.findByScreenName("webmaster");
final Map<String, CcmObject> testObjects = retrieveTestObjects();
final Map<String, Privilege> privileges = retrievePrivileges();
final Map<CcmObject, Boolean> expected = new LinkedHashMap<>();
expected.put(testObjects.get(TEST_OBJECT_1), true);
expected.put(testObjects.get(TEST_OBJECT_2), true);
expected.put(testObjects.get(TEST_OBJECT_3), true);
expected.put(testObjects.get(TEST_OBJECT_4), true);
expected.put(testObjects.get(TEST_OBJECT_5), true);
expected.put(testObjects.get(TEST_OBJECT_6), true);
expected.put(testObjects.get(TEST_OBJECT_7), true);
expected.put(testObjects.get(TEST_OBJECT_8), true);
verifyIsPermitted(webmaster, privileges.get(READ), expected);
}
@Test
@UsingDataSet("datasets/org/libreccm/core/PermissionManagerTest/"
+ "data.json")
@InSequence(12)
public void isPermittedWebmasterWrite() {
final User webmaster = userRepository.findByScreenName("webmaster");
final Map<String, CcmObject> testObjects = retrieveTestObjects();
final Map<String, Privilege> privileges = retrievePrivileges();
final Map<CcmObject, Boolean> expected = new LinkedHashMap<>();
expected.put(testObjects.get(TEST_OBJECT_1), true);
expected.put(testObjects.get(TEST_OBJECT_2), true);
expected.put(testObjects.get(TEST_OBJECT_3), true);
expected.put(testObjects.get(TEST_OBJECT_4), true);
expected.put(testObjects.get(TEST_OBJECT_5), true);
expected.put(testObjects.get(TEST_OBJECT_6), true);
expected.put(testObjects.get(TEST_OBJECT_7), true);
expected.put(testObjects.get(TEST_OBJECT_8), true);
verifyIsPermitted(webmaster, privileges.get(WRITE), expected);
}
@Test
@UsingDataSet("datasets/org/libreccm/core/PermissionManagerTest/"
+ "data.json")
@ -405,17 +450,16 @@ public class PermissionManagerTest {
permissionManager.isPermitted(null, object, user);
}
@Test(expected = IllegalArgumentException.class)
@Test
@UsingDataSet("datasets/org/libreccm/core/PermissionManagerTest/"
+ "data.json")
@ShouldThrowException(IllegalArgumentException.class)
@InSequence(80)
public void isPermittedNullObject() {
final Privilege privilege = privilegeRepository
.retrievePrivilege(READ);
final User user = userRepository.findByScreenName("webmaster");
permissionManager.isPermitted(privilege, null, user);
assertThat(permissionManager.isPermitted(privilege, null, user), is(true));
}
@Test
@ -458,10 +502,9 @@ public class PermissionManagerTest {
permissionManager.checkPermission(null, object, user);
}
@Test(expected = IllegalArgumentException.class)
@Test
@UsingDataSet("datasets/org/libreccm/core/PermissionManagerTest/"
+ "data.json")
@ShouldThrowException(IllegalArgumentException.class)
@InSequence(130)
public void checkPermissionNullObject() throws UnauthorizedAcccessException {
final Privilege privilege = privilegeRepository
@ -471,10 +514,9 @@ public class PermissionManagerTest {
permissionManager.checkPermission(privilege, null, user);
}
@Test(expected = IllegalArgumentException.class)
@Test
@UsingDataSet("datasets/org/libreccm/core/PermissionManagerTest/"
+ "data.json")
@ShouldThrowException(IllegalArgumentException.class)
@InSequence(140)
public void checkPermissionNullSubject() throws UnauthorizedAcccessException {
final Privilege privilege = privilegeRepository
@ -487,8 +529,9 @@ public class PermissionManagerTest {
@Test
@UsingDataSet("datasets/org/libreccm/core/PermissionManagerTest/"
+ "data.json")
@ShouldMatchDataSet("datasets/org/libreccm/core/PermissionManagerTest/"
+ "after-grant.json")
@ShouldMatchDataSet(value = "datasets/org/libreccm/core/"
+ "PermissionManagerTest/after-grant.json",
excludeColumns = {"permission_id"})
@InSequence(150)
public void grantPermission() {
final Privilege read = privilegeRepository.retrievePrivilege(READ);
@ -509,8 +552,9 @@ public class PermissionManagerTest {
@Test
@UsingDataSet("datasets/org/libreccm/core/PermissionManagerTest/"
+ "data.json")
@ShouldMatchDataSet("datasets/org/libreccm/core/PermissionManagerTest/"
+ "after-grant-wildcard.json")
@ShouldMatchDataSet(value = "datasets/org/libreccm/core/"
+ "PermissionManagerTest/after-grant-wildcard.json",
excludeColumns = {"permission_id"})
@InSequence(160)
public void grantWildcardPermission() {
final Privilege read = privilegeRepository.retrievePrivilege(READ);
@ -546,8 +590,9 @@ public class PermissionManagerTest {
@Test
@UsingDataSet("datasets/org/libreccm/core/PermissionManagerTest/"
+ "data.json")
@ShouldMatchDataSet("datasets/org/libreccm/core/PermissionManagerTest/"
+ "after-revoke.json")
@ShouldMatchDataSet(value = "datasets/org/libreccm/core/"
+ "PermissionManagerTest/after-revoke.json",
excludeColumns = {"permission_id"})
@InSequence(190)
public void revokePermission() {
final Privilege read = privilegeRepository.retrievePrivilege(READ);

4
ccm-core/src/test/resources/datasets/org/libreccm/core/PermissionManagerTest/after-grant-wildcard.json
View File

@ -301,13 +301,13 @@
{
"permission_id": -250,
"grantee_id": -50,
"object_id": -70,
"object_id": -60,
"granted_privilege_id": -20
},
{
"permission_id": -260,
"grantee_id": -50,
"object_id": -70,
"object_id": -60,
"granted_privilege_id": -30
},
{

36
ccm-core/src/test/resources/datasets/org/libreccm/core/PermissionManagerTest/after-grant.json
View File

@ -208,12 +208,6 @@
"object_id": -60,
"granted_privilege_id": -20
},
{
"permission_id": -70,
"grantee_id": -50,
"object_id": -60,
"granted_privilege_id": -30
},
{
"permission_id": -80,
"grantee_id": -30,
@ -303,6 +297,36 @@
"grantee_id": -40,
"object_id": -80,
"granted_privilege_id": -30
},
{
"permission_id": -250,
"grantee_id": -50,
"object_id": -60,
"granted_privilege_id": -20
},
{
"permission_id": -260,
"grantee_id": -50,
"object_id": -60,
"granted_privilege_id": -30
},
{
"permission_id": -270,
"grantee_id": -10,
"object_id": -60,
"granted_privilege_id": -20
},
{
"permission_id": -280,
"grantee_id": -50,
"object_id": -70,
"granted_privilege_id": -20
},
{
"permission_id": -290,
"grantee_id": -50,
"object_id": -70,
"granted_privilege_id": -30
}
]
}

26
ccm-core/src/test/resources/datasets/org/libreccm/core/PermissionManagerTest/after-revoke.json
View File

@ -184,12 +184,6 @@
"object_id": -50,
"granted_privilege_id": -20
},
{
"permission_id": -30,
"grantee_id": -10,
"object_id": -50,
"granted_privilege_id": -20
},
{
"permission_id": -40,
"grantee_id": -50,
@ -208,12 +202,6 @@
"object_id": -60,
"granted_privilege_id": -20
},
{
"permission_id": -70,
"grantee_id": -50,
"object_id": -60,
"granted_privilege_id": -30
},
{
"permission_id": -80,
"grantee_id": -30,
@ -304,23 +292,11 @@
"object_id": -80,
"granted_privilege_id": -30
},
{
"permission_id": -240,
"grantee_id": -10,
"object_id": -60,
"granted_privilege_id": -20
},
{
"permission_id": -250,
"grantee_id": -50,
"object_id": -70,
"object_id": -60,
"granted_privilege_id": -20
},
{
"permission_id": -260,
"grantee_id": -50,
"object_id": -70,
"granted_privilege_id": -30
}
]
}

4
ccm-core/src/test/resources/datasets/org/libreccm/core/PermissionManagerTest/data.json
View File

@ -301,13 +301,13 @@
{
"permission_id": -250,
"grantee_id": -50,
"object_id": -70,
"object_id": -60,
"granted_privilege_id": -20
},
{
"permission_id": -260,
"grantee_id": -50,
"object_id": -70,
"object_id": -60,
"granted_privilege_id": -30
}
]