Package org.apache.wiki.auth.user

Class AbstractUserDatabase

java.lang.Object

org.apache.wiki.auth.user.AbstractUserDatabase

All Implemented Interfaces:

UserDatabase

Direct Known Subclasses:

DummyUserDatabase, JDBCUserDatabase, XMLUserDatabase

public abstract class AbstractUserDatabase
extends Object
implements UserDatabase

Abstract UserDatabase class that provides convenience methods for finding profiles, building Principal collections and hashing passwords.

Since:

2.3

Field Summary

Fields

Modifier and Type	Field	Description
protected static org.apache.log4j.Logger	log
protected static String	SHA_PREFIX
protected static String	SSHA_PREFIX

Constructor Summary

Constructors

Constructor	Description
AbstractUserDatabase()

Method Summary

Modifier and Type	Method	Description
UserProfile	find(String index)	Looks up and returns the first UserProfile in the user database that whose login name, full name, or wiki name matches the supplied string.
abstract UserProfile	findByEmail(String index)	Looks up and returns the first UserProfile in the user database that matches a profile having a given e-mail address.
abstract UserProfile	findByFullName(String index)	Looks up and returns the first UserProfile in the user database that matches a profile having a given full name.
abstract UserProfile	findByLoginName(String index)	Looks up and returns the first UserProfile in the user database that matches a profile having a given login name.
abstract UserProfile	findByWikiName(String index)	Looks up and returns the first UserProfile in the user database that matches a profile having a given wiki name.
protected static String	generateUid(UserDatabase db)	Generates a new random user identifier (uid) that is guaranteed to be unique.
protected String	getHash(String text)	Private method that calculates the salted SHA-1 hash of a given String.
Principal[]	getPrincipals(String identifier)	Looks up the Principals representing a user from the user database.
abstract void	initialize(Engine engine, Properties props)	Initializes the user database based on values from a Properties object.
UserProfile	newProfile()	Factory method that instantiates a new DefaultUserProfile with a new, distinct unique identifier.
protected long	parseLong(String value)	Parses a long integer from a supplied string, or returns 0 if not parsable.
abstract void	save(UserProfile profile)	Saves a UserProfileto the user database, overwriting the existing profile if it exists.
boolean	validatePassword(String loginName, String password)	Validates the password for a given user.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.wiki.auth.user.UserDatabase

deleteByLoginName, findByUid, getWikiNames, rename

Field Details

log

protected static final org.apache.log4j.Logger log

SHA_PREFIX

protected static final String SHA_PREFIX

See Also:

Constant Field Values

SSHA_PREFIX

protected static final String SSHA_PREFIX

See Also:

Constant Field Values

Constructor Details

AbstractUserDatabase

public AbstractUserDatabase()

Method Details

find

public UserProfile find(String index)
                 throws NoSuchPrincipalException

Looks up and returns the first UserProfile in the user database that whose login name, full name, or wiki name matches the supplied string. This method provides a "forgiving" search algorithm for resolving principal names when the exact profile attribute that supplied the name is unknown.

Specified by:

find in interface UserDatabase

Parameters:

index - the login name, full name, or wiki name

Throws:

NoSuchPrincipalException

See Also:

UserDatabase.find(java.lang.String)

findByEmail

public abstract UserProfile findByEmail(String index)
                                 throws NoSuchPrincipalException

Looks up and returns the first UserProfile in the user database that matches a profile having a given e-mail address. If the user database does not contain a user with a matching attribute, throws a NoSuchPrincipalException.

Specified by:

findByEmail in interface UserDatabase

Parameters:

index - the e-mail address of the desired user profile

Returns:

the user profile

Throws:

NoSuchPrincipalException

See Also:

UserDatabase.findByEmail(java.lang.String)

findByFullName

public abstract UserProfile findByFullName(String index)
                                    throws NoSuchPrincipalException

Looks up and returns the first UserProfile in the user database that matches a profile having a given full name. If the user database does not contain a user with a matching attribute, throws a NoSuchPrincipalException.

Specified by:

findByFullName in interface UserDatabase

Parameters:

index - the fill name of the desired user profile

Returns:

the user profile

Throws:

NoSuchPrincipalException

See Also:

UserDatabase.findByFullName(java.lang.String)

findByLoginName

public abstract UserProfile findByLoginName(String index)
                                     throws NoSuchPrincipalException

Looks up and returns the first UserProfile in the user database that matches a profile having a given login name. If the user database does not contain a user with a matching attribute, throws a NoSuchPrincipalException.

Specified by:

findByLoginName in interface UserDatabase

Parameters:

index - the login name of the desired user profile

Returns:

the user profile

Throws:

NoSuchPrincipalException

See Also:

UserDatabase.findByLoginName(java.lang.String)

findByWikiName

public abstract UserProfile findByWikiName(String index)
                                    throws NoSuchPrincipalException

Looks up and returns the first UserProfile in the user database that matches a profile having a given wiki name. If the user database does not contain a user with a matching attribute, throws a NoSuchPrincipalException.

Specified by:

findByWikiName in interface UserDatabase

Parameters:

index - the wiki name of the desired user profile

Returns:

the user profile

Throws:

NoSuchPrincipalException

See Also:

UserDatabase.findByWikiName(java.lang.String)

getPrincipals

public Principal[] getPrincipals(String identifier)
                          throws NoSuchPrincipalException

Looks up the Principals representing a user from the user database. These are defined as a set of WikiPrincipals manufactured from the login name, full name, and wiki name. If the user database does not contain a user with the supplied identifier, throws a NoSuchPrincipalException.

When this method creates WikiPrincipals, the Principal containing the user's full name is marked as containing the common name (see WikiPrincipal(String, String)).

Specified by:

getPrincipals in interface UserDatabase

Parameters:

identifier - the name of the principal to retrieve; this corresponds to value returned by the user profile's UserProfile.getLoginName()method.

Returns:

the array of Principals representing the user

Throws:

NoSuchPrincipalException - If the user database does not contain user with the supplied identifier

See Also:

UserDatabase.getPrincipals(java.lang.String)

initialize

public abstract void initialize(Engine engine,
Properties props)
                         throws NoRequiredPropertyException,
WikiSecurityException

Initializes the user database based on values from a Properties object.

Specified by:

initialize in interface UserDatabase

Throws:

NoRequiredPropertyException

WikiSecurityException

See Also:

UserDatabase.initialize(org.apache.wiki.api.core.Engine, java.util.Properties)

newProfile

public UserProfile newProfile()

Factory method that instantiates a new DefaultUserProfile with a new, distinct unique identifier.

Specified by:

newProfile in interface UserDatabase

Returns:

A new, empty profile.

save

public abstract void save(UserProfile profile)
                   throws WikiSecurityException

Saves a UserProfileto the user database, overwriting the existing profile if it exists. The user name under which the profile should be saved is returned by the supplied profile's UserProfile.getLoginName() method.

The database implementation is responsible for detecting potential duplicate user profiles; specifically, the login name, wiki name, and full name must be unique. The implementation is not required to check for validity of passwords or e-mail addresses. Special case: if the profile already exists and the password is null, it should retain its previous value, rather than being set to null.

Implementations are required to time-stamp the creation or modification fields of the UserProfile./p>

This method is intended to be atomic; results cannot be partially committed. If the commit fails, it should roll back its state appropriately. Implementing classes that persist to the file system may wish to make this method synchronized.

Specified by:

save in interface UserDatabase

Parameters:

profile - the user profile to save

Throws:

WikiSecurityException - if the profile cannot be saved

See Also:

UserDatabase.save(org.apache.wiki.auth.user.UserProfile)

validatePassword

public boolean validatePassword(String loginName,
String password)

Validates the password for a given user. If the user does not exist in the user database, this method always returns false. If the user exists, the supplied password is compared to the stored password. Note that if the stored password's value starts with {SHA}, the supplied password is hashed prior to the comparison.

Specified by:

validatePassword in interface UserDatabase

Parameters:

loginName - the user's login name

password - the user's password (obtained from user input, e.g., a web form)

Returns:

true if the supplied user password matches the stored password

See Also:

UserDatabase.validatePassword(java.lang.String, java.lang.String)

generateUid

protected static String generateUid(UserDatabase db)

Generates a new random user identifier (uid) that is guaranteed to be unique.

Parameters:

db - The database for which the UID should be generated.

Returns:

A random, unique UID.

getHash

protected String getHash(String text)

Private method that calculates the salted SHA-1 hash of a given String. Note that as of JSPWiki 2.8, this method calculates a salted hash rather than a plain hash.

Parameters:

text - the text to hash

Returns:

the result hash

parseLong

protected long parseLong(String value)

Parses a long integer from a supplied string, or returns 0 if not parsable.

Parameters:

value - the string to parse

Returns:

the value parsed