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Spring Authorization Server now defaults multipleIssuersAllowed to false and it cannot be easily re-enabled #41355

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Spring Authorization Server now defaults multipleIssuersAllowed to false and it cannot be easily re-enabled #41355

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24 changes: 24 additions & 0 deletions ...oot/autoconfigure/security/oauth2/server/servlet/OAuth2AuthorizationServerProperties.java
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,30 @@ public class OAuth2AuthorizationServerProperties implements InitializingBean {
*/
private String issuer;

/**
* Set to {@code true} if multiple issuers are allowed per host. Using path
* components in the URL of the issuer identifier enables supporting multiple
* issuers per host in a multi-tenant hosting configuration.
*
* <p>
* For example:
* <ul>
* <li>{@code https://example.com/issuer1}</li>
* <li>{@code https://example.com/authz/issuer2}</li>
* </ul>
*
* <p>
* <b>NOTE:</b> Explicitly configuring the issuer identifier via
* {@link #issuer(String)} forces to a single-tenant configuration. Avoid
* configuring the issuer identifier when using a multi-tenant hosting
* configuration, allowing the issuer identifier to be resolved from the
* <i>"current"</i> request.
* @param multipleIssuersAllowed {@code true} if multiple issuers are allowed per
* host, {@code false} otherwise
* @return the {@link Builder} for further configuration
*/
private boolean multipleIssuersAllowed = false;

/**
* Registered clients of the Authorization Server.
*/
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3 changes: 2 additions & 1 deletion ...toconfigure/security/oauth2/server/servlet/OAuth2AuthorizationServerPropertiesMapper.java
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Expand Up @@ -51,7 +51,8 @@ AuthorizationServerSettings asAuthorizationServerSettings() {
OAuth2AuthorizationServerProperties.Endpoint endpoint = this.properties.getEndpoint();
OAuth2AuthorizationServerProperties.OidcEndpoint oidc = endpoint.getOidc();
AuthorizationServerSettings.Builder builder = AuthorizationServerSettings.builder();
map.from(this.properties::getIssuer).to(builder::issuer);
map.from(this.properties::getIssuer).whenHasText().to(builder::issuer);
map.from(this.properties::isMultipleIssuersAllowed).to(builder::multipleIssuersAllowed);
map.from(endpoint::getAuthorizationUri).to(builder::authorizationEndpoint);
map.from(endpoint::getDeviceAuthorizationUri).to(builder::deviceAuthorizationEndpoint);
map.from(endpoint::getDeviceVerificationUri).to(builder::deviceVerificationEndpoint);
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