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110 changes: 110 additions & 0 deletions
110
.../sanita/fse2/ms/gtw/dispatcher/config/kafka/oauth2/CustomAuthenticateCallbackHandler.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| //Copyright (c) Microsoft Corporation. All rights reserved. | ||
| //Licensed under the MIT License. | ||
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| package it.finanze.sanita.fse2.ms.gtw.dispatcher.config.kafka.oauth2; | ||
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| import java.io.File; | ||
| import java.io.FileInputStream; | ||
| import java.io.IOException; | ||
| import java.net.MalformedURLException; | ||
| import java.net.URI; | ||
| import java.util.Arrays; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.concurrent.ExecutionException; | ||
| import java.util.concurrent.TimeoutException; | ||
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| import javax.security.auth.callback.Callback; | ||
| import javax.security.auth.callback.UnsupportedCallbackException; | ||
| import javax.security.auth.login.AppConfigurationEntry; | ||
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| import org.apache.kafka.clients.producer.ProducerConfig; | ||
| import org.apache.kafka.common.KafkaException; | ||
| import org.apache.kafka.common.security.auth.AuthenticateCallbackHandler; | ||
| import org.apache.kafka.common.security.oauthbearer.OAuthBearerToken; | ||
| import org.apache.kafka.common.security.oauthbearer.OAuthBearerTokenCallback; | ||
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| import com.microsoft.aad.msal4j.ClientCredentialFactory; | ||
| import com.microsoft.aad.msal4j.ClientCredentialParameters; | ||
| import com.microsoft.aad.msal4j.ConfidentialClientApplication; | ||
| import com.microsoft.aad.msal4j.IAuthenticationResult; | ||
| import com.microsoft.aad.msal4j.IClientCredential; | ||
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| import it.finanze.sanita.fse2.ms.gtw.dispatcher.exceptions.BusinessException; | ||
| import lombok.extern.slf4j.Slf4j; | ||
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| @Slf4j | ||
| public class CustomAuthenticateCallbackHandler implements AuthenticateCallbackHandler { | ||
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| private String tenantId; | ||
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| private String appId; | ||
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| private String pfxPathName; | ||
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| private String pwd; | ||
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| private ConfidentialClientApplication aadClient; | ||
| private ClientCredentialParameters aadParameters; | ||
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| @Override | ||
| public void configure(Map<String, ?> configs, String mechanism, List<AppConfigurationEntry> jaasConfigEntries) { | ||
| String bootstrapServer = Arrays.asList(configs.get(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG)).get(0).toString(); | ||
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| bootstrapServer = bootstrapServer.replaceAll("\\[|\\]", ""); | ||
| URI uri = URI.create("https://" + bootstrapServer); | ||
| String sbUri = uri.getScheme() + "://" + uri.getHost(); | ||
| this.aadParameters = | ||
| ClientCredentialParameters.builder(Collections.singleton(sbUri + "/.default")) | ||
| .build(); | ||
| this.tenantId = "https://login.microsoftonline.com/"+ Arrays.asList(configs.get("kafka.oauth.tenantId")).get(0).toString(); | ||
| this.appId = Arrays.asList(configs.get("kafka.oauth.appId")).get(0).toString(); | ||
| this.pfxPathName = Arrays.asList(configs.get("kafka.oauth.pfxPathName")).get(0).toString(); | ||
| this.pwd = Arrays.asList(configs.get("kafka.oauth.pwd")).get(0).toString(); | ||
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| } | ||
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| public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException { | ||
| for (Callback callback: callbacks) { | ||
| if (callback instanceof OAuthBearerTokenCallback) { | ||
| try { | ||
| OAuthBearerToken token = getOAuthBearerToken(); | ||
| OAuthBearerTokenCallback oauthCallback = (OAuthBearerTokenCallback) callback; | ||
| oauthCallback.token(token); | ||
| } catch (InterruptedException | ExecutionException | TimeoutException e) { | ||
| e.printStackTrace(); | ||
| } | ||
| } else { | ||
| throw new UnsupportedCallbackException(callback); | ||
| } | ||
| } | ||
| } | ||
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| private OAuthBearerToken getOAuthBearerToken() throws MalformedURLException, InterruptedException, ExecutionException, TimeoutException { | ||
| if (this.aadClient == null) { | ||
| synchronized(this) { | ||
| if (this.aadClient == null) { | ||
| IClientCredential credential = null; | ||
| try (FileInputStream certificato = new FileInputStream(new File(pfxPathName))) { | ||
| credential = ClientCredentialFactory.createFromCertificate(certificato, this.pwd); | ||
| } catch(Exception ex) { | ||
| log.error("Error while try to crate credential from certificate"); | ||
| throw new BusinessException(ex); | ||
| } | ||
| this.aadClient = ConfidentialClientApplication.builder(this.appId, credential) | ||
| .authority(this.tenantId) | ||
| .build(); | ||
| } | ||
| } | ||
| } | ||
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| IAuthenticationResult authResult = this.aadClient.acquireToken(this.aadParameters).get(); | ||
| log.info("Token oauth2 acquired"); | ||
| return new OAuthBearerTokenImp(authResult.accessToken(), authResult.expiresOnDate()); | ||
| } | ||
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| public void close() throws KafkaException { | ||
| // NOOP | ||
| } | ||
| } |
41 changes: 41 additions & 0 deletions
41
...ava/it/finanze/sanita/fse2/ms/gtw/dispatcher/config/kafka/oauth2/OAuthBearerTokenImp.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| package it.finanze.sanita.fse2.ms.gtw.dispatcher.config.kafka.oauth2; | ||
| import java.util.Date; | ||
| import java.util.Set; | ||
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| import org.apache.kafka.common.security.oauthbearer.OAuthBearerToken; | ||
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| public class OAuthBearerTokenImp implements OAuthBearerToken { | ||
| private String token; | ||
| private long lifetimeMs; | ||
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| public OAuthBearerTokenImp(final String token, Date expiresOn) { | ||
| this.token = token; | ||
| this.lifetimeMs = expiresOn.getTime(); | ||
| } | ||
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| @Override | ||
| public String value() { | ||
| return this.token; | ||
| } | ||
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| @Override | ||
| public Set<String> scope() { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public long lifetimeMs() { | ||
| return this.lifetimeMs; | ||
| } | ||
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| @Override | ||
| public String principalName() { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public Long startTimeMs() { | ||
| return null; | ||
| } | ||
| } |
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