41 lines
1.2 KiB
Text
41 lines
1.2 KiB
Text
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==== Error Handling
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{{book.project.name}} has some error handling facilities for servlet based client adapters.
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When an error is encountered in authentication, the client adapter will call `HttpServletResponse.sendError()`.
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You can set up an `error-page` within your `web.xml` file to handle the error however you want.
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The client adapter may throw 400, 401, 403, and 500 errors.
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[source,xml]
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----
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<error-page>
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<error-code>404</error-code>
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<location>/ErrorHandler</location>
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</error-page>
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----
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The client adapter also sets an `HttpServletRequest` attribute that you can retrieve.
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The attribute name is `org.keycloak.adapters.spi.AuthenticationError`.
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Typecast this object to: `org.keycloak.adapters.saml.SamlAuthenticationError`.
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This class can tell you exactly what happened.
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If this attribute is not set, then the adapter was not responsible for the error code.
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[source,xml]
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----
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public class SamlAuthenticationError implements AuthenticationError {
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public static enum Reason {
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EXTRACTION_FAILURE,
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INVALID_SIGNATURE,
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ERROR_STATUS
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}
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public Reason getReason() {
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return reason;
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}
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public StatusResponseType getStatus() {
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return status;
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}
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}
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----
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