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96
api/src/main/java/io/minio/credentials/AssumeRoleBaseProvider.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| /* | ||
| * MinIO Java SDK for Amazon S3 Compatible Cloud Storage, (C) 2020 MinIO, Inc. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * https://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package io.minio.credentials; | ||
|
|
||
| import io.minio.errors.XmlParserException; | ||
| import java.io.IOException; | ||
| import java.util.Arrays; | ||
| import okhttp3.HttpUrl; | ||
| import okhttp3.OkHttpClient; | ||
| import okhttp3.Protocol; | ||
| import okhttp3.Request; | ||
| import okhttp3.Response; | ||
|
|
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| /** Base class to AssumeRole based providers. */ | ||
| public abstract class AssumeRoleBaseProvider implements Provider { | ||
| private final OkHttpClient httpClient; | ||
| private Credentials credentials; | ||
|
|
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| public AssumeRoleBaseProvider(OkHttpClient customHttpClient) { | ||
| // HTTP/1.1 is only supported in default client because of HTTP/2 in OkHttpClient cause 5 | ||
| // minutes timeout on program exit. | ||
| this.httpClient = | ||
| (customHttpClient != null) | ||
| ? customHttpClient | ||
| : new OkHttpClient().newBuilder().protocols(Arrays.asList(Protocol.HTTP_1_1)).build(); | ||
| } | ||
|
|
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| @Override | ||
| public synchronized Credentials fetch() { | ||
| if (credentials != null && !credentials.isExpired()) { | ||
| return credentials; | ||
| } | ||
|
|
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| try (Response response = httpClient.newCall(getRequest()).execute()) { | ||
| if (!response.isSuccessful()) { | ||
| throw new IllegalStateException( | ||
| "STS service failed with HTTP status code " + response.code()); | ||
| } | ||
|
|
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| credentials = parseResponse(response); | ||
| return credentials; | ||
| } catch (XmlParserException | IOException e) { | ||
| throw new IllegalStateException("Unable to parse STS response", e); | ||
| } | ||
| } | ||
|
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| protected HttpUrl.Builder newUrlBuilder( | ||
| HttpUrl url, | ||
| String action, | ||
| int durationSeconds, | ||
| String policy, | ||
| String roleArn, | ||
| String roleSessionName) { | ||
| HttpUrl.Builder urlBuilder = | ||
| url.newBuilder() | ||
| .addQueryParameter("Action", action) | ||
| .addQueryParameter("Version", "2011-06-15"); | ||
|
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| if (durationSeconds > 0) { | ||
| urlBuilder.addQueryParameter("DurationSeconds", String.valueOf(durationSeconds)); | ||
| } | ||
|
|
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| if (policy != null) { | ||
| urlBuilder.addQueryParameter("Policy", policy); | ||
| } | ||
|
|
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| if (roleArn != null) { | ||
| urlBuilder.addQueryParameter("RoleArn", roleArn); | ||
| } | ||
|
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| if (roleSessionName != null) { | ||
| urlBuilder.addQueryParameter("RoleSessionName", roleSessionName); | ||
| } | ||
|
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| return urlBuilder; | ||
| } | ||
|
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| protected abstract Request getRequest(); | ||
|
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| protected abstract Credentials parseResponse(Response response) | ||
| throws XmlParserException, IOException; | ||
| } |
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