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client credentials workflow implementation
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40 changes: 40 additions & 0 deletions
40
...izininformatik_initiative/processes/common/fhir/client/interceptor/OAuth2Interceptor.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| package de.medizininformatik_initiative.processes.common.fhir.client.interceptor; | ||
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| import java.util.Objects; | ||
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| import org.springframework.beans.factory.InitializingBean; | ||
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| import ca.uhn.fhir.rest.api.Constants; | ||
| import ca.uhn.fhir.rest.client.api.IClientInterceptor; | ||
| import ca.uhn.fhir.rest.client.api.IHttpRequest; | ||
| import ca.uhn.fhir.rest.client.api.IHttpResponse; | ||
| import de.medizininformatik_initiative.processes.common.fhir.client.token.TokenProvider; | ||
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| public class OAuth2Interceptor implements IClientInterceptor, InitializingBean | ||
| { | ||
| private final TokenProvider tokenProvider; | ||
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| public OAuth2Interceptor(TokenProvider tokenProvider) | ||
| { | ||
| this.tokenProvider = tokenProvider; | ||
| } | ||
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| @Override | ||
| public void afterPropertiesSet() | ||
| { | ||
| Objects.requireNonNull(tokenProvider, "tokenProvider"); | ||
| } | ||
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| @Override | ||
| public void interceptRequest(IHttpRequest theRequest) | ||
| { | ||
| theRequest.addHeader(Constants.HEADER_AUTHORIZATION, | ||
| Constants.HEADER_AUTHORIZATION_VALPREFIX_BEARER + tokenProvider.getToken()); | ||
| } | ||
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| @Override | ||
| public void interceptResponse(IHttpResponse theResponse) | ||
| { | ||
| // do not intercept response | ||
| } | ||
| } |
34 changes: 34 additions & 0 deletions
34
.../java/de/medizininformatik_initiative/processes/common/fhir/client/token/AccessToken.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,34 @@ | ||
| package de.medizininformatik_initiative.processes.common.fhir.client.token; | ||
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| import java.time.LocalDateTime; | ||
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| import com.fasterxml.jackson.annotation.JsonCreator; | ||
| import com.fasterxml.jackson.annotation.JsonIgnoreProperties; | ||
| import com.fasterxml.jackson.annotation.JsonProperty; | ||
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| @JsonIgnoreProperties(ignoreUnknown = true) | ||
| public class AccessToken | ||
| { | ||
| private static final int BUFFER = 10; | ||
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| private final String token; | ||
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| private final LocalDateTime expiresAt; | ||
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| @JsonCreator | ||
| public AccessToken(@JsonProperty("access_token") String token, @JsonProperty("expires_in") int expiresIn) | ||
| { | ||
| this.token = token; | ||
| this.expiresAt = LocalDateTime.now().plusSeconds(expiresIn); | ||
| } | ||
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| public String get() | ||
| { | ||
| return token; | ||
| } | ||
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| public boolean isExpired() | ||
| { | ||
| return LocalDateTime.now().plusSeconds(BUFFER).isAfter(expiresAt); | ||
| } | ||
| } |
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