edu.amc.sakai.user

Interface LdapAttributeMapper

All Known Implementing Classes:

EmailAddressDerivingLdapAttributeMapper, MultipleEmailLdapAttributeMapper, SimpleLdapAttributeMapper

public interface LdapAttributeMapper

Implementations handle mappings between logical and physical directory attribute names and between directory entries and Sakai domain and framework objects. The also handle search filter writing.

Author:

Dan McCallum, Unicon Inc

Method Summary

Modifier and Type	Method and Description
String	escapeSearchFilterTerm(String term) Scrubs the given search filter term (i.e. a value to be matched, or not, in a search predicate) for reserved characters.
String	getAttributeMapping(String key) Map the given logical attribute name to a physical attribute name.
Map<String,String>	getAttributeMappings() Access the current directory attribute map.
String	getFindUserByAidFilter(String aid) Output a filter string for searching the directory with the specified user aid as a key.
String	getFindUserByCrossAttributeSearchFilter(String criteria) Builds a filter to perform a wildcard search for criteria in uid, email, first name or last name In order to minimise hitting the limits of searches, this only performs a wildcard match on anything after the supplied criteria.
String	getFindUserByEidFilter(String eid) Output a filter string for searching the directory with the specified user eid as a key.
String	getFindUserByEmailFilter(String emailAddr) Output a filter string for searching the directory with the specified email address as a key.
String	getManyUsersInOneSearch(Set<String> criteria) Builds a filter to a uid search against many users at once For reference, the LDAP search filter is of the form: "(|(uid=sample.user)(uid=john.doe)(uid=jane.smith))"
String[]	getSearchResultAttributes() Access the standard attributes returned from any given directory search.
String	getUserBindDn(LdapUserData userData) Determine the DN to which to bind when executing an authentication attempt for the given user.
void	init() Complete internal configuration.
void	mapLdapEntryOntoUserData(com.novell.ldap.LDAPEntry ldapEntry, LdapUserData userData) Maps attribites from the specified LDAPEntry onto a LdapUserData.
void	mapUserDataOntoUserEdit(LdapUserData userData, UserEdit userEdit) Maps attribites from the specified LdapUserData onto a UserEdit.
void	setAttributeMappings(Map<String,String> attributeMappings) Assign the directory attribute map.

Method Detail

init

void init()

Complete internal configuration. Typical called by Spring.

getFindUserByEmailFilter

String getFindUserByEmailFilter(String emailAddr)

Output a filter string for searching the directory with the specified email address as a key.

Parameters:

emailAddr - an email address to search on

Returns:

an LDAP search filter

getFindUserByEidFilter

String getFindUserByEidFilter(String eid)

Output a filter string for searching the directory with the specified user eid as a key.

Parameters:

eid - a user eid to search on

Returns:

an LDAP search filter

getFindUserByAidFilter

String getFindUserByAidFilter(String aid)

Output a filter string for searching the directory with the specified user aid as a key.

Parameters:

aid - a user authentication id.

Returns:

an LDAP search filter

mapLdapEntryOntoUserData

void mapLdapEntryOntoUserData(com.novell.ldap.LDAPEntry ldapEntry,
                              LdapUserData userData)

Maps attribites from the specified LDAPEntry onto a LdapUserData.

Parameters:

ldapEntry - a non-null directory entry to map

userData - a non-null user cache entry

mapUserDataOntoUserEdit

void mapUserDataOntoUserEdit(LdapUserData userData,
                             UserEdit userEdit)

Maps attribites from the specified LdapUserData onto a UserEdit.

Parameters:

userData - a non-null user cache entry

userEdit - a non-null user domain object

getSearchResultAttributes

String[] getSearchResultAttributes()

Access the standard attributes returned from any given directory search.

Returns:

an array of directory attribute names

getAttributeMappings

Map<String,String> getAttributeMappings()

Access the current directory attribute map. Keys are logical names, values are physical names.

Returns:

the current attribute map.

setAttributeMappings

void setAttributeMappings(Map<String,String> attributeMappings)

Assign the directory attribute map. Keys are logical names, values are physical names.

Parameters:

attributeMappings - the attribute map.

getAttributeMapping

String getAttributeMapping(String key)

Map the given logical attribute name to a physical attribute name.

Parameters:

key - the logical attribute name

Returns:

the corresponding physical attribute name, or null if no mapping exists.

escapeSearchFilterTerm

String escapeSearchFilterTerm(String term)

Scrubs the given search filter term (i.e. a value to be matched, or not, in a search predicate) for reserved characters. I.e. protects against query injection.

Parameters:

term - The string value to be scrubbed

Returns:

null if the received String is null, otherwise a copy of the received String with reserved characters escaped.

getUserBindDn

String getUserBindDn(LdapUserData userData)

Determine the DN to which to bind when executing an authentication attempt for the given user. An invocation implies that the DN can be derived from attributes already mapped onto the given LdapUserData by this LdapAttributeMapper. For example, the mapper could have cached the DN in the user's property map, or the bind DN could be reliably calculated from a combination of the user's eid and some other configured RDN string.

Parameters:

userData - a mapped collection of user attributes from which to derive a bindable DN. Should not be null

Returns:

a bindable DN derived from userData or null if the DN is not known.

getFindUserByCrossAttributeSearchFilter

String getFindUserByCrossAttributeSearchFilter(String criteria)

Builds a filter to perform a wildcard search for criteria in uid, email, first name or last name

In order to minimise hitting the limits of searches, this only performs a wildcard match on anything after the supplied criteria.
For example, a search for 'john' will match 'john' and 'johnson' but not 'gudjohnsen'.

For reference, the LDAP search filter is of the form: "(|(uid=criteria*)(mail=criteria*)(givenName=criteria*)(sn=criteria*))"

Parameters:

the - search string

Returns:

the formatted search filter

getManyUsersInOneSearch

String getManyUsersInOneSearch(Set<String> criteria)

Builds a filter to a uid search against many users at once For reference, the LDAP search filter is of the form: "(|(uid=sample.user)(uid=john.doe)(uid=jane.smith))"

Parameters:

the - search string

Returns:

the formatted search filter