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feat(auth): add a header authentification for reverse proxy
close #724
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| package org.akhq.configs; | ||
|
|
||
| import io.micronaut.context.annotation.ConfigurationProperties; | ||
| import lombok.AllArgsConstructor; | ||
| import lombok.Data; | ||
| import lombok.NoArgsConstructor; | ||
|
|
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
|
|
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| @Data | ||
| @ConfigurationProperties("akhq.security.header-auth") | ||
| public class HeaderAuth { | ||
| String userHeader; | ||
| String groupsHeader; | ||
| List<Users> users; | ||
|
|
||
| @Data | ||
| public static class Users { | ||
| String username; | ||
| List<String> groups = new ArrayList<>(); | ||
| } | ||
| } | ||
|
|
116 changes: 116 additions & 0 deletions
116
src/main/java/org/akhq/modules/HeaderAuthenticationFetcher.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| package org.akhq.modules; | ||
|
|
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| import io.micronaut.context.annotation.Requires; | ||
| import io.micronaut.core.async.publisher.Publishers; | ||
| import io.micronaut.http.HttpRequest; | ||
| import io.micronaut.security.authentication.Authentication; | ||
| import io.micronaut.security.authentication.AuthenticationUserDetailsAdapter; | ||
| import io.micronaut.security.authentication.Authenticator; | ||
| import io.micronaut.security.authentication.UserDetails; | ||
| import io.micronaut.security.filters.AuthenticationFetcher; | ||
| import io.micronaut.security.token.config.TokenConfiguration; | ||
| import io.reactivex.Flowable; | ||
| import lombok.extern.slf4j.Slf4j; | ||
| import org.akhq.configs.HeaderAuth; | ||
| import org.akhq.utils.ClaimProvider; | ||
| import org.reactivestreams.Publisher; | ||
|
|
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| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.Optional; | ||
| import java.util.stream.Collectors; | ||
| import java.util.stream.Stream; | ||
| import javax.inject.Inject; | ||
| import javax.inject.Singleton; | ||
|
|
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| @Requires(beans = HeaderAuth.class) | ||
| @Singleton | ||
| @Slf4j | ||
| public class HeaderAuthenticationFetcher implements AuthenticationFetcher { | ||
| @Inject | ||
| HeaderAuth headerAuth; | ||
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| @Inject | ||
| Authenticator authenticator; | ||
|
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| @Inject | ||
| ClaimProvider claimProvider; | ||
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| @Inject | ||
| TokenConfiguration configuration; | ||
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| @Override | ||
| public Publisher<Authentication> fetchAuthentication(HttpRequest<?> request) { | ||
| Optional<String> userHeaders = request.getHeaders() | ||
| .get(headerAuth.getUserHeader(), String.class); | ||
|
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| Optional<String> groupHeaders = headerAuth.getGroupsHeader() != null ? | ||
| request.getHeaders().get(headerAuth.getGroupsHeader(), String.class) : | ||
| Optional.empty(); | ||
|
|
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| if (userHeaders.isEmpty()) { | ||
| return Publishers.empty(); | ||
| } | ||
|
|
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| return Flowable | ||
| .fromCallable(() -> { | ||
| List<String> strings = groupsMapper(userHeaders.get(), groupHeaders); | ||
|
|
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| if (strings.size() == 0) { | ||
| return Optional.<ClaimProvider.AKHQClaimResponse>empty(); | ||
| } | ||
|
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| ClaimProvider.AKHQClaimRequest claim = | ||
| ClaimProvider.AKHQClaimRequest.builder() | ||
| .providerType(ClaimProvider.ProviderType.HEADER) | ||
| .providerName(null) | ||
| .username(userHeaders.get()) | ||
| .groups(strings) | ||
| .build(); | ||
|
|
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| return Optional.of(claimProvider.generateClaim(claim)); | ||
|
|
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| }) | ||
| .switchMap(t -> { | ||
| if (t.isPresent()) { | ||
| UserDetails userDetails = new UserDetails( | ||
| userHeaders.get(), | ||
| t.get().getRoles(), | ||
| t.get().getAttributes() | ||
| ); | ||
|
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| return Flowable.just(new AuthenticationUserDetailsAdapter( | ||
| userDetails, | ||
| configuration.getRolesName(), | ||
| configuration.getNameKey() | ||
| )); | ||
| } else { | ||
| if (log.isDebugEnabled()) { | ||
| log.debug("Could not authenticate {}", userHeaders.get()); | ||
| } | ||
| return Flowable.empty(); | ||
| } | ||
| }); | ||
| } | ||
|
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| private List<String> groupsMapper(String user, Optional<String> groupHeaders) { | ||
| if (headerAuth.getUsers() == null || headerAuth.getUsers().size() == 0) { | ||
| return groupsSplit(groupHeaders) | ||
| .collect(Collectors.toList()); | ||
| } | ||
|
|
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| return headerAuth | ||
| .getUsers() | ||
| .stream() | ||
| .filter(users -> users.getUsername().equals(user)) | ||
| .flatMap(users -> Stream.concat( | ||
| groupsSplit(groupHeaders), | ||
| users.getGroups() != null ? users.getGroups().stream() : Stream.empty() | ||
| )) | ||
| .collect(Collectors.toList()); | ||
| } | ||
|
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| private Stream<String> groupsSplit(Optional<String> groupHeaders) { | ||
| return groupHeaders.stream().flatMap(s -> Arrays.stream(s.split(","))); | ||
| } | ||
| } |
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