WORKERS AHEAD!

You are viewing the development documentation for the Apereo CAS server. The functionality presented here is not officially released yet. This is a work in progress and will be continually updated as development moves forward. You are most encouraged to test the changes presented.

To view the documentation for a specific Apereo CAS server release, please choose an appropriate version. The release schedule is available here.

Logging

CAS provides a logging facility that logs important informational events like authentication success and failure; it can be customized to produce additional information for troubleshooting. CAS uses the Slf4j Logging framework as a facade for the Log4j engine by default.

The default log4j configuration file is located in src/main/resources/log4j2.xml of the cas-server-webapp-resources source module. In the cas.war it is found at the root of the cas-server-webapp-resources*.jar. The cas-overlay comes with an external log42.xml in etc/cas/config and a property logging.config=file:/etc/cas/config/log4j2.xml set to reference it. By default logging is set to INFO for all functionality related to org.apereo.cas code. For debugging and diagnostic purposes you may want to set these levels to DEBUG or TRACE.

Production

You should always run everything under WARN. In production warnings and errors are things you care about. Everything else is just diagnostics. Only turn up DEBUG or INFO if you need to research a particular issue.

Actuator Endpoints

The following endpoints are provided:

The following settings and properties are available from the CAS configuration catalog:

_{The configuration settings listed below are tagged as Required in the CAS configuration metadata. This flag indicates that the presence of the setting may be needed to activate or affect the behavior of the CAS feature and generally should be reviewed, possibly owned and adjusted. If the setting is assigned a default value, you do not need to strictly put the setting in your copy of the configuration, but should review it nonetheless to make sure it matches your deployment expectations.}

cas.monitor.endpoints.jdbc.password-encoder.encoding-algorithm=

The encoding algorithm to use such as MD5. Relevant when the type used is DEFAULT or GLIBC_CRYPT.

org.apereo.cas.configuration.model.core.authentication.PasswordEncoderProperties.

cas.monitor.endpoints.jdbc.password-encoder.type=NONE

Define the password encoder type to use. Type may be specified as blank or NONE to disable password encoding. It may also refer to a fully-qualified class name that implements the Spring Security's PasswordEncoder interface if you wish you define your own encoder. The following types may be used:

NONE: No password encoding (i.e. plain-text) takes place.
DEFAULT: Use the DefaultPasswordEncoder of CAS. For message-digest algorithms via character-encoding and encoding-algorithm.
BCRYPT: Use the BCryptPasswordEncoder based on the strength provided and an optional secret.
SCRYPT: Use the SCryptPasswordEncoder.
PBKDF2: Use the Pbkdf2PasswordEncoder based on the strength provided and an optional secret.
STANDARD: Use the StandardPasswordEncoder based on the secret provided.
SSHA: Use the LdapShaPasswordEncoder supports Ldap SHA and SSHA (salted-SHA). The values are base-64 encoded and have the label SHA</code> or SSHA</code> prepended to the encoded hash.
GLIBC_CRYPT: Use the GlibcCryptPasswordEncoder based on the encoding-algorithm, strength provided and an optional secret.
org.example.MyEncoder: An implementation of PasswordEncoder of your own choosing.
file:///path/to/script.groovy: Path to a Groovy script charged with handling password encoding operations.

org.apereo.cas.configuration.model.core.authentication.PasswordEncoderProperties.

cas.monitor.endpoints.jdbc.driver-class=org.hsqldb.jdbcDriver

The JDBC driver used to connect to the database.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.password=

The database connection password.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.url=jdbc:hsqldb:mem:cas-hsql-database

The database connection URL.

This setting supports the Spring Expression Language.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.user=sa

The database user.

The database user must have sufficient permissions to be able to handle schema changes and updates, when needed.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

_{The configuration settings listed below are tagged as Optional in the CAS configuration metadata. This flag indicates that the presence of the setting is not immediately necessary in the end-user CAS configuration, because a default value is assigned or the activation of the feature is not conditionally controlled by the setting value.}

cas.monitor.endpoints.jdbc.password-encoder.character-encoding=UTF-8

The encoding algorithm to use such as 'UTF-8'. Relevant when the type used is DEFAULT.

org.apereo.cas.configuration.model.core.authentication.PasswordEncoderProperties.

cas.monitor.endpoints.jdbc.password-encoder.secret=

Secret to use with STANDARD, PBKDF2, BCRYPT, GLIBC_CRYPT password encoders. Secret usually is an optional setting.

org.apereo.cas.configuration.model.core.authentication.PasswordEncoderProperties.

cas.monitor.endpoints.jdbc.password-encoder.strength=16

Strength or number of iterations to use for password hashing. Usually relevant when dealing with PBKDF2 or BCRYPT encoders. Used by GLIBC_CRYPT encoders as well.

org.apereo.cas.configuration.model.core.authentication.PasswordEncoderProperties.

cas.monitor.endpoints.jdbc.pool.max-size=18

Controls the maximum number of connections to keep in the pool, including both idle and in-use connections.

org.apereo.cas.configuration.model.support.ConnectionPoolingProperties.

cas.monitor.endpoints.jdbc.pool.max-wait=PT2S

Sets the maximum time in seconds that this data source will wait while attempting to connect to a database.

A value of zero specifies that the timeout is the default system timeout if there is one; otherwise, it specifies that there is no timeout.

This settings supports the java.time.Duration syntax ^[?].

org.apereo.cas.configuration.model.support.ConnectionPoolingProperties.

cas.monitor.endpoints.jdbc.pool.min-size=6

Controls the minimum size that the pool is allowed to reach, including both idle and in-use connections.

org.apereo.cas.configuration.model.support.ConnectionPoolingProperties.

cas.monitor.endpoints.jdbc.pool.suspension=false

Whether or not pool suspension is allowed.

There is a performance impact when pool suspension is enabled. Unless you need it (for a redundancy system for example) do not enable it.

org.apereo.cas.configuration.model.support.ConnectionPoolingProperties.

cas.monitor.endpoints.jdbc.pool.timeout-millis=1000

The maximum number of milliseconds that the pool will wait for a connection to be validated as alive.

org.apereo.cas.configuration.model.support.ConnectionPoolingProperties.

cas.monitor.endpoints.jdbc.autocommit=false

The default auto-commit behavior of connections in the pool. Determined whether queries such as update/insert should be immediately executed without waiting for an underlying transaction.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.batch-size=100

A non-zero value enables use of JDBC2 batch updates by Hibernate. e.g. recommended values between 5 and 30.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.data-source-name=

Attempts to do a JNDI data source look up for the data source name specified. Will attempt to locate the data source object as is.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.ddl-auto=update

Hibernate feature to automatically validate and exports DDL to the schema. By default, creates and drops the schema automatically when a session is starts and ends. Setting the value to validate or none may be more desirable for production, but any of the following options can be used:

validate: Validate the schema, but make no changes to the database.
update: Update the schema.
create: Create the schema, destroying previous data.
create-drop: Drop the schema at the end of the session.
none: Do nothing.

Note that during a version migration where any schema has changed create-drop will result in the loss of all data as soon as CAS is started. For transient data like tickets this is probably not an issue, but in cases like the audit table important data could be lost. Using `update`, while safe for data, is confirmed to result in invalid database state. validate or none settings are likely the only safe options for production use.

For more info, see this.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.default-catalog=

Qualifies unqualified table names with the given catalog in generated SQL.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.default-schema=

Qualify unqualified table names with the given schema/tablespace in generated SQL.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.dialect=org.hibernate.dialect.HSQLDialect

The database dialect is a configuration setting for platform independent software (JPA, Hibernate, etc) which allows such software to translate its generic SQL statements into vendor specific DDL, DML.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.fail-fast-timeout=1

Set the pool initialization failure timeout.

Any value greater than zero will be treated as a timeout for pool initialization. The calling thread will be blocked from continuing until a successful connection to the database, or until the timeout is reached. If the timeout is reached, then a PoolInitializationException will be thrown.
A value of zero will not prevent the pool from starting in the case that a connection cannot be obtained. However, upon start the pool will attempt to obtain a connection and validate that the connectionTestQuery and connectionInitSql are valid. If those validations fail, an exception will be thrown. If a connection cannot be obtained, the validation is skipped and the the pool will start and continue to try to obtain connections in the background. This can mean that callers to DataSource#getConnection() may encounter exceptions.
A value less than zero will not bypass any connection attempt and validation during startup, and therefore the pool will start immediately. The pool will continue to try to obtain connections in the background. This can mean that callers to DataSource#getConnection() may encounter exceptions.

Note that if this timeout value is greater than or equal to zero (0), and therefore an initial connection validation is performed, this timeout does not override the connectionTimeout or validationTimeout; they will be honored before this timeout is applied. The default value is one millisecond.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.fetch-size=100

Used to specify number of rows to be fetched in a select query.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.generate-statistics=false

Allow hibernate to generate query statistics.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.health-query=

The SQL query to be executed to test the validity of connections.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.idle-timeout=PT10M

Controls the maximum amount of time that a connection is allowed to sit idle in the pool.

This settings supports the java.time.Duration syntax ^[?].

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.isolate-internal-queries=false

This property determines whether data source isolates internal pool queries, such as the connection alive test, in their own transaction.

Since these are typically read-only queries, it is rarely necessary to encapsulate them in their own transaction. This property only applies if #autocommit is disabled.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.isolation-level-name=ISOLATION_READ_COMMITTED

Defines the isolation level for transactions. @see org.springframework.transaction.TransactionDefinition

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.leak-threshold=3000

Controls the amount of time that a connection can be out of the pool before a message is logged indicating a possible connection leak.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.physical-naming-strategy-class-name=org.apereo.cas.hibernate.CasHibernatePhysicalNamingStrategy

Fully-qualified name of the class that can control the physical naming strategy of hibernate.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.propagation-behavior-name=PROPAGATION_REQUIRED

Defines the propagation behavior for transactions. @see org.springframework.transaction.TransactionDefinition

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.properties=

Additional settings provided by Hibernate in form of key-value pairs.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.query=

Query to execute in order to authenticate users via JDBC. Example: SELECT username,password,enabled FROM users WHERE username=?

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.

cas.monitor.endpoints.jdbc.role-prefix=

Prefix to add to the role.

org.apereo.cas.configuration.model.core.monitor.JdbcSecurityActuatorEndpointsMonitorProperties.