Examples of org.camunda.bpm.engine.authorization.Authorization

Package org.camunda.bpm.engine.authorization

Examples of org.camunda.bpm.engine.authorization.Authorization

org.camunda.bpm.engine.authorization.Authorization
An {@link Authorization} assigns a set of {@link Permission Permissions}to an identity to interact with a given {@link Resource}.

EXAMPLES:
- User 'jonny' is authorized to start new instances of the 'invoice' process
- Group 'marketing' is not authorized to cancel process instances.
- Group 'marketing' is not allowed to use the tasklist application.
- Nobody is allowed to edit process variables in the cockpit application, except the distinct user 'admin'.
Identities

camunda BPM distinguished two types of identities: users and groups. Authorizations can either range over all users (userId = {@link #ANY}), an individual {@link User} or a {@link Group} of users.
Permissions

A {@link Permission} defines the way an identity is allowed to interactwith a certain resource. Examples of permissions are {@link Permissions#CREATE CREATE}, {@link Permissions#READ READ}, {@link Permissions#UPDATE UPDATE}, {@link Permissions#DELETE DELETE}, ... See {@link Permissions} for a set ofbuilt-in permissions.

A single authorization object may assign multiple permissions to a single user and resource:
```
 authorization.addPermission(Permissions.READ); authorization.addPermission(Permissions.WRITE); authorization.addPermission(Permissions.DELETE); 
```
On top of the built-in permissions, camunda BPM allows using custom permission types.

Resources

Resources are the entities the user interacts with. Examples of resources are {@link Resources#GROUP GROUPS}, {@link Resources#USER USERS}, process-definitions, process-instances, tasks ... See {@link Resources} for a setof built-in resource. The camunda BPM framework supports custom resources.

Authorization Type

There are three types of authorizations:
- Global Authorizations ( {@link #AUTH_TYPE_GLOBAL}) range over all users and groups (userId = {@link #ANY}) and are usually used for fixing the "base" permission for a resource.
- Grant Authorizations ( {@link #AUTH_TYPE_GRANT}) range over users and groups and grant a set of permissions. Grant authorizations are commonly used for adding permissions to a user or group that the global authorization revokes.
- Revoke Authorizations ( {@link #AUTH_TYPE_REVOKE}) range over users and groups and revoke a set of permissions. Revoke authorizations are commonly used for revoking permissions to a user or group the the global authorization grants.
Authorization Precedence

Authorizations may range over all users, an individual user or a group of users or . They may apply to an individual resource instance or all instances of the same type (resourceId = {@link #ANY}). The precedence is as follows:
1. An authorization applying to an individual resource instance preceds over an authorization applying to all instances of the same resource type.
2. An authorization for an individual user preceds over an authorization for a group.
3. A Group authorization preced over a {@link #AUTH_TYPE_GLOBAL GLOBAL} authorization.
4. A Group {@link #AUTH_TYPE_REVOKE REVOKE} authorization preced over a Group{@link #AUTH_TYPE_GRANT GRANT} authorization.
@author Daniel Meyer @since 7.0

    super.tearDown();
  }


  protected void createAuthorization(String userId, String groupId, Resource resourceType, String resourceId, Permission... permissions) {
    
    Authorization authorization = authorizationService.createNewAuthorization(Authorization.AUTH_TYPE_GRANT);
    authorization.setUserId(userId);
    authorization.setGroupId(groupId);
    authorization.setResource(resourceType);
    authorization.setResourceId(resourceId);
    
    for (Permission permission : permissions) {
      authorization.addPermission(permission);
    }
    
    authorizationService.saveAuthorization(authorization);   
  }

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  }


  public void testUserCreateAuthorizations() {


    // add base permission which allows nobody to create users:
    Authorization basePerms = authorizationService.createNewAuthorization(AUTH_TYPE_GLOBAL);
    basePerms.setResource(USER);
    basePerms.setResourceId(ANY);
    basePerms.addPermission(ALL); // add all then remove 'crate'
    basePerms.removePermission(CREATE);
    authorizationService.saveAuthorization(basePerms);


    processEngineConfiguration.setAuthorizationEnabled(true);
    identityService.setAuthenticatedUserId(jonny2);

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    // crate user while still in god-mode:
    User jonny1 = identityService.newUser("jonny1");
    identityService.saveUser(jonny1);


    // create global auth
    Authorization basePerms = authorizationService.createNewAuthorization(AUTH_TYPE_GLOBAL);
    basePerms.setResource(USER);
    basePerms.setResourceId(ANY);
    basePerms.addPermission(ALL);
    basePerms.removePermission(DELETE); // revoke delete
    authorizationService.saveAuthorization(basePerms);


    // turn on authorization
    processEngineConfiguration.setAuthorizationEnabled(true);
    identityService.setAuthenticatedUserId(jonny2);

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    // crate user while still in god-mode:
    User jonny1 = identityService.newUser("jonny1");
    identityService.saveUser(jonny1);


    // create global auth
    Authorization basePerms = authorizationService.createNewAuthorization(AUTH_TYPE_GLOBAL);
    basePerms.setResource(USER);
    basePerms.setResourceId(ANY);
    basePerms.addPermission(ALL);
    basePerms.removePermission(UPDATE); // revoke update
    authorizationService.saveAuthorization(basePerms);


    // turn on authorization
    processEngineConfiguration.setAuthorizationEnabled(true);
    identityService.setAuthenticatedUserId(jonny2);

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  }


  public void testGroupCreateAuthorizations() {


    // add base permission which allows nobody to create groups:
    Authorization basePerms = authorizationService.createNewAuthorization(AUTH_TYPE_GLOBAL);
    basePerms.setResource(GROUP);
    basePerms.setResourceId(ANY);
    basePerms.addPermission(ALL); // add all then remove 'crate'
    basePerms.removePermission(CREATE);
    authorizationService.saveAuthorization(basePerms);


    processEngineConfiguration.setAuthorizationEnabled(true);
    identityService.setAuthenticatedUserId(jonny2);

View Full Code Here

    // crate group while still in god-mode:
    Group group1 = identityService.newGroup("group1");
    identityService.saveGroup(group1);


    // create global auth
    Authorization basePerms = authorizationService.createNewAuthorization(AUTH_TYPE_GLOBAL);
    basePerms.setResource(GROUP);
    basePerms.setResourceId(ANY);
    basePerms.addPermission(ALL);
    basePerms.removePermission(DELETE); // revoke delete
    authorizationService.saveAuthorization(basePerms);


    // turn on authorization
    processEngineConfiguration.setAuthorizationEnabled(true);
    identityService.setAuthenticatedUserId(jonny2);

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    // crate group while still in god-mode:
    Group group1 = identityService.newGroup("group1");
    identityService.saveGroup(group1);


    // create global auth
    Authorization basePerms = authorizationService.createNewAuthorization(AUTH_TYPE_GLOBAL);
    basePerms.setResource(GROUP);
    basePerms.setResourceId(ANY);
    basePerms.addPermission(ALL);
    basePerms.removePermission(UPDATE); // revoke update
    authorizationService.saveAuthorization(basePerms);


    // turn on authorization
    processEngineConfiguration.setAuthorizationEnabled(true);
    identityService.setAuthenticatedUserId(jonny2);

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    Group group1 = identityService.newGroup("group1");
    identityService.saveGroup(group1);


    // add base permission which allows nobody to add users to groups
    Authorization basePerms = authorizationService.createNewAuthorization(AUTH_TYPE_GLOBAL);
    basePerms.setResource(GROUP_MEMBERSHIP);
    basePerms.setResourceId(ANY);
    basePerms.addPermission(ALL); // add all then remove 'crate'
    basePerms.removePermission(CREATE);
    authorizationService.saveAuthorization(basePerms);


    processEngineConfiguration.setAuthorizationEnabled(true);
    identityService.setAuthenticatedUserId(jonny2);

View Full Code Here


    Group group1 = identityService.newGroup("group1");
    identityService.saveGroup(group1);


    // add base permission which allows nobody to add users to groups
    Authorization basePerms = authorizationService.createNewAuthorization(AUTH_TYPE_GLOBAL);
    basePerms.setResource(GROUP_MEMBERSHIP);
    basePerms.setResourceId(ANY);
    basePerms.addPermission(ALL); // add all then remove 'delete'
    basePerms.removePermission(DELETE);
    authorizationService.saveAuthorization(basePerms);


    processEngineConfiguration.setAuthorizationEnabled(true);
    identityService.setAuthenticatedUserId(jonny2);

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    // create new user jonny1
    User jonny1 = identityService.newUser("jonny1");
    identityService.saveUser(jonny1);


    // set base permission for all users (no-one has any permissions on users)
    Authorization basePerms = authorizationService.createNewAuthorization(AUTH_TYPE_GLOBAL);
    basePerms.setResource(USER);
    basePerms.setResourceId(ANY);
    authorizationService.saveAuthorization(basePerms);


    // now enable checks
    processEngineConfiguration.setAuthorizationEnabled(true);


    // we cannot fetch the user
    assertNull(identityService.createUserQuery().singleResult());
    assertEquals(0, identityService.createUserQuery().count());


    processEngineConfiguration.setAuthorizationEnabled(false);


    // now we add permission for jonny2 to read the user:
    Authorization ourPerms = authorizationService.createNewAuthorization(AUTH_TYPE_GRANT);
    ourPerms.setUserId(authUserId);
    ourPerms.setResource(USER);
    ourPerms.setResourceId(ANY);
    ourPerms.addPermission(READ);
    authorizationService.saveAuthorization(ourPerms);


    processEngineConfiguration.setAuthorizationEnabled(true);


    // now we can fetch the user
    assertNotNull(identityService.createUserQuery().singleResult());
    assertEquals(1, identityService.createUserQuery().count());


    // change the base permission:
    processEngineConfiguration.setAuthorizationEnabled(false);
    basePerms = authorizationService.createAuthorizationQuery().resourceType(USER).userIdIn("*").singleResult();
    basePerms.addPermission(READ);
    authorizationService.saveAuthorization(basePerms);
    processEngineConfiguration.setAuthorizationEnabled(true);


    // we can still fetch the user
    assertNotNull(identityService.createUserQuery().singleResult());
    assertEquals(1, identityService.createUserQuery().count());




    // revoke permission for jonny2:
    processEngineConfiguration.setAuthorizationEnabled(false);
    ourPerms = authorizationService.createAuthorizationQuery().resourceType(USER).userIdIn(authUserId).singleResult();
    ourPerms.removePermission(READ);
    authorizationService.saveAuthorization(ourPerms);


    Authorization revoke = authorizationService.createNewAuthorization(AUTH_TYPE_REVOKE);
    revoke.setUserId(authUserId);
    revoke.setResource(USER);
    revoke.setResourceId(ANY);
    revoke.removePermission(READ);
    authorizationService.saveAuthorization(revoke);
    processEngineConfiguration.setAuthorizationEnabled(true);


    // now we cannot fetch the user
    assertNull(identityService.createUserQuery().singleResult());
    assertEquals(0, identityService.createUserQuery().count());




    // delete our perms
    processEngineConfiguration.setAuthorizationEnabled(false);
    authorizationService.deleteAuthorization(ourPerms.getId());
    authorizationService.deleteAuthorization(revoke.getId());
    processEngineConfiguration.setAuthorizationEnabled(true);


    // now the base permission applies and grants us read access
    assertNotNull(identityService.createUserQuery().singleResult());
    assertEquals(1, identityService.createUserQuery().count());

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Examples of org.camunda.bpm.engine.authorization.Authorization

Identities

Permissions

Resources

Authorization Type

Authorization Precedence

Related Classes of org.camunda.bpm.engine.authorization.Authorization