feat(SpEL): implement to configure the limit of characters for SpEL expressions #1193
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dbyron-sf
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...ssions/src/main/java/com/netflix/spinnaker/kork/expressions/config/ExpressionProperties.java
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…xpressions Spring Expression Lanuage (SpEL) has a default limit of 10,000 characters. Springframework provides the feature to configure the limit. This feature allows to configure the limit of characters for SpEL expressions. Approach: In order to use an expression with characters more than the given default limit, require to follow either of the below approaches: 1. For Springframework >=5.3.28 and <6.1.3, by setting `maximumExpressionLength` field while instantiating the custom `SpelParserConfiguration` class. spring-projects/spring-framework#30380 spring-projects/spring-framework#30446 2. For Springframework >=6.1.3, by setting a JVM system property or Spring property named `spring.context.expression.maxLength` to the maximum expression length needed by your application. spring-projects/spring-framework#31952 spring-projects/spring-framework@7855986 Spinnaker supports spring boot 2.7.18, that brings springframework 5.3.31 [https://docs.spring.io/spring-boot/docs/2.7.18/reference/html/dependency-versions.html#appendix.dependency-versions.propertie9]. So first approach need to be implemented along with spinnaker enhancement to expose the `maximumExpressionLength` field.
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Spring Expression Lanuage (SpEL) has a default limit of 10,000 characters. Springframework provides the feature to configure the limit. This feature allows to configure the limit of characters for SpEL expressions.
Approach:
In order to use an expression with characters more than the given default limit, require to follow either of the below approaches:
maximumExpressionLengthfield while instantiating the customSpelParserConfigurationclass.Make maximum SpEL expression length configurable spring-projects/spring-framework#30380
Make maximum SpEL expression length configurable spring-projects/spring-framework#30446
spring.context.expression.maxLengthto the maximum expression length needed by your application.Make maximum length of SpEL expressions in an
ApplicationContextconfigurable spring-projects/spring-framework#31952spring-projects/spring-framework@7855986
Spinnaker supports spring boot 2.7.18, that brings springframework 5.3.31 [https://docs.spring.io/spring-boot/docs/2.7.18/reference/html/dependency-versions.html#appendix.dependency-versions.propertie9]. So first approach need to be implemented along with spinnaker enhancement to expose the
maximumExpressionLengthfield.