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This commit removes unnecessary main-branch merges starting from 8750608b5bca45525c99d0a41a20ed02de93d8c7 and adds the following needed commit(s) that were made afterward: - 5dce82c48bc0b174838501c5a111b2de70822914
75 lines
2.1 KiB
Plaintext
75 lines
2.1 KiB
Plaintext
[[data]]
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= Spring Data Integration
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Spring Security provides Spring Data integration that allows referring to the current user within your queries.
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It is not only useful but necessary to include the user in the queries to support paged results since filtering the results afterwards would not scale.
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[[data-configuration]]
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== Spring Data & Spring Security Configuration
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To use this support, add `org.springframework.security:spring-security-data` dependency and provide a bean of type `SecurityEvaluationContextExtension`:
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[tabs]
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======
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Java::
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+
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[source,java,role="primary"]
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----
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@Bean
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public SecurityEvaluationContextExtension securityEvaluationContextExtension() {
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return new SecurityEvaluationContextExtension();
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}
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----
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Kotlin::
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+
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[source,kotlin,role="secondary"]
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----
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@Bean
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fun securityEvaluationContextExtension(): SecurityEvaluationContextExtension {
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return SecurityEvaluationContextExtension()
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}
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----
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======
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In XML Configuration, this would look like:
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[source,xml]
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----
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<bean class="org.springframework.security.data.repository.query.SecurityEvaluationContextExtension"/>
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----
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[[data-query]]
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== Security Expressions within @Query
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Now you can use Spring Security within your queries:
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[tabs]
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======
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Java::
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+
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[source,java,role="primary"]
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----
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@Repository
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public interface MessageRepository extends PagingAndSortingRepository<Message,Long> {
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@Query("select m from Message m where m.to.id = ?#{ principal?.id }")
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Page<Message> findInbox(Pageable pageable);
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}
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----
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Kotlin::
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+
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[source,kotlin,role="secondary"]
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----
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@Repository
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interface MessageRepository : PagingAndSortingRepository<Message,Long> {
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@Query("select m from Message m where m.to.id = ?#{ principal?.id }")
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fun findInbox(pageable: Pageable): Page<Message>
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}
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----
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======
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This checks to see if the `Authentication.getPrincipal().getId()` is equal to the recipient of the `Message`.
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Note that this example assumes you have customized the principal to be an Object that has an id property.
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By exposing the `SecurityEvaluationContextExtension` bean, all of the xref:servlet/authorization/method-security.adoc#authorization-expressions[Common Security Expressions] are available within the Query.
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