CosmosDb Ticket Registry

CosmosDb support is enabled by including the following dependency in the WAR overlay:

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<dependency>
    <groupId>org.apereo.cas</groupId>
    <artifactId>cas-server-support-cosmosdb-ticket-registry</artifactId>
    <version>${cas.version}</version>
</dependency>
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implementation "org.apereo.cas:cas-server-support-cosmosdb-ticket-registry:${project.'cas.version'}"
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dependencyManagement {
    imports {
        mavenBom "org.apereo.cas:cas-server-support-bom:${project.'cas.version'}"
    }
}

dependencies {
    implementation "org.apereo.cas:cas-server-support-cosmosdb-ticket-registry"
}
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dependencies {
    /*
        The following platform references are included automatically and are listed for reference only.

        implementation enforcedPlatform("org.apereo.cas:cas-server-support-bom:${project.'cas.version'}")
        implementation platform(org.springframework.boot.gradle.plugin.SpringBootPlugin.BOM_COORDINATES)
        
    */
    implementation "org.apereo.cas:cas-server-support-cosmosdb-ticket-registry"
}
:warning: Usage

This feature is deprecated and is scheduled to be removed in the future.

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

cas.ticket.registry.cosmos-db.crypto.encryption.keyThe encryption key.
no default
Required

The encryption key. The encryption key by default and unless specified otherwise must be randomly-generated string whose length is defined by the encryption key size setting.

Type
String
Default
none
Defined by
EncryptionRandomizedCryptoProperties
cas.ticket.registry.cosmos-db.crypto.signing.keyThe signing key is a string whose length is defined by the signing key size setting.
no default
RequiredSpEL

The signing key is a string whose length is defined by the signing key size setting.

Type
String
Default
none
Defined by
SigningJwtCryptoProperties
Supports
Spring Expression Language
cas.ticket.registry.cosmos-db.databaseDatabase name.
no default
Required

Database name.

Type
String
Default
none
Defined by
CosmosDbTicketRegistryProperties
cas.ticket.registry.cosmos-db.keyDocument Db master key.
no default
RequiredSpEL

Document Db master key.

Type
String
Default
none
Defined by
CosmosDbTicketRegistryProperties
Supports
Spring Expression Language
cas.ticket.registry.cosmos-db.uriDocument Db host address (i.e.
no default
RequiredSpEL

Document Db host address (i.e. https://localhost:8081).

Type
String
Default
none
Defined by
CosmosDbTicketRegistryProperties
Supports
Spring Expression Language
cas.ticket.registry.cosmos-db.consistency-levelDocument Db consistency level.
SESSION
Document Db consistency level. Azure Cosmos DB is designed from the ground up with global distribution in mind for every data model. It is designed to offer predictable low latency guarantees, a 99.99% availability SLA, and multiple well-defined relaxed consistency models. Currently, Azure Cosmos DB provides five consistency levels: strong, bounded-staleness, session, consistent prefix, and eventual. Besides strong and eventual consistency models commonly offered by distributed databases, Azure Cosmos DB offers three more carefully codified and operationalized consistency models, and has validated their usefulness against real world use cases. These are the bounded staleness, session, and consistent prefix consistency levels. Collectively these five consistency levels enable you to make well-reasoned trade-offs between consistency, availability, and latency. Accepted values are:
  • STRONG: Linearizability
  • SESSION: Consistent Prefix. Monotonic reads, monotonic writes, read-your-writes, write-follows-reads
  • EVENTUAL: Out of order reads
  • BOUNDED_STALENESS: Consistent Prefix. Reads lag behind writes by k prefixes or t interval
  • CONSISTENT_PREFIX: Updates returned are some prefix of all the updates, with no gaps
Type
String
Default
SESSION
Defined by
CosmosDbTicketRegistryProperties
cas.ticket.registry.cosmos-db.crypto.algThe signing/encryption algorithm to use.
AES

The signing/encryption algorithm to use.

Type
String
Default
AES
Defined by
EncryptionRandomizedSigningJwtCryptographyProperties
cas.ticket.registry.cosmos-db.crypto.enabledWhether crypto operations are enabled.
true

Whether crypto operations are enabled.

Type
Boolean
Default
true
Defined by
EncryptionRandomizedSigningJwtCryptographyProperties
cas.ticket.registry.cosmos-db.crypto.encryption.key-sizeEncryption key size.
16

Encryption key size.

Type
Integer
Default
16
Defined by
EncryptionRandomizedCryptoProperties
cas.ticket.registry.cosmos-db.crypto.signing-enabledWhether signing encryption operations are enabled.
true

Whether signing encryption operations are enabled.

Type
Boolean
Default
true
Defined by
EncryptionRandomizedSigningJwtCryptographyProperties
cas.ticket.registry.cosmos-db.crypto.signing.key-sizeThe signing key size.
512

The signing key size.

Type
Integer
Default
512
Defined by
SigningJwtCryptoProperties
cas.ticket.registry.cosmos-db.database-throughputThe max auto scale throughput.
4000

The max auto scale throughput.

Type
Integer
Default
4000
Defined by
CosmosDbTicketRegistryProperties
cas.ticket.registry.cosmos-db.endpoint-discovery-enabledSets the flag to enable endpoint discovery for geo-replicated database accounts.
true

Sets the flag to enable endpoint discovery for geo-replicated database accounts. When EnableEndpointDiscovery is true, the SDK will automatically discover the current write and read regions to ensure requests are sent to the correct region based on the capability of the region and the user's preference.

Type
Boolean
Default
true
Defined by
CosmosDbTicketRegistryProperties
cas.ticket.registry.cosmos-db.indexing-modeSpecifies the supported indexing modes in the Azure Cosmos DB database service.
NONE
Specifies the supported indexing modes in the Azure Cosmos DB database service. Accepted values are:
  • CONSISTENT: Index is updated synchronously with a create or update operation. With consistent indexing, query behavior is the same as the default consistency level for the collection. The index is always kept up to date with the data.
  • LAZY: Index is updated asynchronously with respect to a create or update operation. With lazy indexing, queries are eventually consistent. The index is updated when the collection is idle.
  • NONE: No index is provided. Setting IndexingMode to "None" drops the index. Use this if you don't want to maintain the index for a document collection, to save the storage cost or improve the write throughput. Your queries will degenerate to scans of the entire collection.
Type
String
Default
NONE
Defined by
CosmosDbTicketRegistryProperties
cas.ticket.registry.cosmos-db.max-retry-attempts-on-throttled-requestsSets the maximum number of retries in the case where the request fails because the service has applied rate limiting on the client.
4

Sets the maximum number of retries in the case where the request fails because the service has applied rate limiting on the client.

When a client is sending requests faster than the allowed rate, the service will return HttpStatusCode 429 (Too Many Request) to throttle the client. The current implementation in the SDK will then wait for the amount of time the service tells it to wait and retry after the time has elapsed.

The default value is 4. This means in the case where the request is throttled, the same request will be issued for a maximum of 5 times to the server before an error is returned to the application.

Type
Integer
Default
4
Defined by
CosmosDbTicketRegistryProperties
cas.ticket.registry.cosmos-db.max-retry-wait-timeSets the maximum retry time in seconds.
PT10S
Duration

Sets the maximum retry time in seconds. When a request fails due to a throttle error, the service sends back a response that contains a value indicating the client should not retry before the time period has elapsed (Retry-After). The MaxRetryWaitTime flag allows the application to set a maximum wait time for all retry attempts. If the cumulative wait time exceeds the MaxRetryWaitTime, the SDK will stop retrying and return the error to the application.

Type
String
Default
PT10S
Defined by
CosmosDbTicketRegistryProperties
cas.ticket.registry.cosmos-db.modeControls the connection mode.
GATEWAY
Controls the connection mode. Supported values are: GATEWAY and DIRECT.
  • GATEWAY: HTTPS over REST. Java HTTPS stack (Apache HttpClient). Generally robust. Limited bulk support. Works with HTTP proxies. Uses Java’s trust store + hostname verifier.
  • DIRECT: Custom binary protocol over TCP (RNTBD). Netty (manual TLS/SSL context and connections). Highly efficient, but sensitive to connection issues. Does not support HTTP proxies. Uses Netty TLS.
Type
String
Default
GATEWAY
Defined by
CosmosDbTicketRegistryProperties
cas.ticket.registry.cosmos-db.preferred-regionsSets the preferred regions for geo-replicated database accounts.
no default

Sets the preferred regions for geo-replicated database accounts. For example, "East US" as the preferred region. When EnableEndpointDiscovery is true and PreferredRegions is non-empty, the SDK will prefer to use the regions in the container in the order they are specified to perform operations.

Type
List<String>
Default
none
Defined by
CosmosDbTicketRegistryProperties
cas.ticket.registry.cosmos-db.user-agent-suffixSets the value of the user-agent suffix.
no default

Sets the value of the user-agent suffix.

Type
String
Default
none
Defined by
CosmosDbTicketRegistryProperties

Required settings may be needed to activate or affect the feature; review them even when they have a default. Optional settings only need to be set to change a default or to turn on the behavior they control. Third party settings belong to libraries such as Spring Boot that CAS builds on; their own documentation may have more detail.

Signing & encryption

This CAS feature is able to accept signing and encryption crypto keys. In most scenarios if keys are not provided, CAS will auto-generate them. The following instructions apply if you wish to manually and beforehand create the signing and encryption keys.

Note that if you are asked to create a JWK of a certain size for the key, you are to use the following set of commands to generate the token:

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wget https://raw.githubusercontent.com/apereo/cas/master/etc/jwk-gen.jar
java -jar jwk-gen.jar -t oct -s [size]

The outcome would be similar to:

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{
  "kty": "oct",
  "kid": "...",
  "k": "..."
}

The generated value for k needs to be assigned to the relevant CAS settings. Note that keys generated via the above algorithm are processed by CAS using the Advanced Encryption Standard (AES) algorithm which is a specification for the encryption of electronic data established by the U.S. National Institute of Standards and Technology.


Notes on configuration

Configuration Metadata

The collection of configuration properties listed in this section are automatically generated from the CAS source and components that contain the actual field definitions, types, descriptions, modules, etc. This metadata may not always be 100% accurate, or could be lacking details and sufficient explanations.

Be Selective

This section is meant as a guide only. Do NOT copy/paste the entire collection of settings into your CAS configuration; rather pick only the properties that you need. Do NOT enable settings unless you are certain of their purpose and do NOT copy settings into your configuration only to keep them as reference. All these ideas lead to upgrade headaches, maintenance nightmares and premature aging.

YAGNI

Note that for nearly ALL use cases, declaring and configuring properties listed here is sufficient. You should NOT have to explicitly massage a CAS XML/Java/etc configuration file to design an authentication handler, create attribute release policies, etc. CAS at runtime will auto-configure all required changes for you. If you are unsure about the meaning of a given CAS setting, do NOT turn it on without hesitation. Review the codebase or better yet, ask questions to clarify the intended behavior.

Naming Convention

Property names can be specified in very relaxed terms. For instance cas.someProperty, cas.some-property, cas.some_property are all valid names. While all forms are accepted by CAS, there are certain components (in CAS and other frameworks used) whose activation at runtime is conditional on a property value, where this property is required to have been specified in CAS configuration using kebab case. This is both true for properties that are owned by CAS as well as those that might be presented to the system via an external library or framework such as Spring Boot, etc.

:information_source: Note

When possible, properties should be stored in lower-case kebab format, such as cas.property-name=value. The only possible exception to this rule is when naming actuator endpoints; The name of the actuator endpoints (i.e. ssoSessions) MUST remain in camelCase mode.

Settings and properties that are controlled by the CAS platform directly always begin with the prefix cas. All other settings are controlled and provided to CAS via other underlying frameworks and may have their own schemas and syntax. BE CAREFUL with the distinction. Unrecognized properties are rejected by CAS and/or frameworks upon which CAS depends. This means if you somehow misspell a property definition or fail to adhere to the dot-notation syntax and such, your setting is entirely refused by CAS and likely the feature it controls will never be activated in the way you intend.

Validation

Configuration properties are automatically validated on CAS startup to report issues with configuration binding, especially if defined CAS settings cannot be recognized or validated by the configuration schema. Additional validation processes are also handled via Configuration Metadata and property migrations applied automatically on startup by Spring Boot and family.

Indexed Settings

CAS settings able to accept multiple values are typically documented with an index, such as cas.some.setting[0]=value. The index [0] is meant to be incremented by the adopter to allow for distinct multiple configuration blocks.