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src/main/java/datastax/astra/migrate/GoogleSecretManagerHelper.java
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| @@ -0,0 +1,101 @@ | ||
| package datastax.astra.migrate; | ||
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| import java.nio.charset.Charset; | ||
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| import org.json.JSONException; | ||
| import org.json.JSONObject; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| import com.google.cloud.secretmanager.v1.AccessSecretVersionResponse; | ||
| import com.google.cloud.secretmanager.v1.SecretManagerServiceClient; | ||
| import com.google.cloud.secretmanager.v1.SecretVersionName; | ||
| import com.google.common.hash.Hashing; | ||
| import com.google.protobuf.ByteString; | ||
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| public class GoogleSecretManagerHelper { | ||
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| private static GoogleSecretManagerHelper googleSecretManagerHelper; | ||
| public Logger logger = LoggerFactory.getLogger(this.getClass().getName()); | ||
| public static final String ASTRA_CLIENT_ID_KEY = "client_id"; | ||
| public static final String ASTRA_CLIENT_SECRET_KEY = "secret"; | ||
| public static final String ASTRA_SECRET_VERSION_ID = "latest"; | ||
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| private String astraClusterUserName; | ||
| private String astraAuthenToken; | ||
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| private GoogleSecretManagerHelper() { | ||
| logger.info("Private constructor GoogleSecretManagerHelper invoked"); | ||
| } | ||
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| public static GoogleSecretManagerHelper getInstance() { | ||
| if (googleSecretManagerHelper == null) { | ||
| synchronized (GoogleSecretManagerHelper.class) { | ||
| if (googleSecretManagerHelper == null) { | ||
| googleSecretManagerHelper = new GoogleSecretManagerHelper(); | ||
| } | ||
| } | ||
| } | ||
| return googleSecretManagerHelper; | ||
| } | ||
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| public void populateAstraCredentials(String astraProjectId, String astraSecretManagerSecredId) throws Exception { | ||
| try { | ||
| JSONObject astraSecretJson = getAstraClientSecretJson(astraProjectId, astraSecretManagerSecredId); | ||
| astraClusterUserName = astraSecretJson.getString(ASTRA_CLIENT_ID_KEY); | ||
| astraAuthenToken = astraSecretJson.getString(ASTRA_CLIENT_SECRET_KEY); | ||
| } catch (JSONException e) { | ||
| throw new Exception("Error Occured while extracting client Id/secret from Json:" + e); | ||
| } catch (Exception e) { | ||
| throw e; | ||
| } | ||
| } | ||
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| public String getAstraClusterUserName() { | ||
| return astraClusterUserName; | ||
| } | ||
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| public String getAstraAuthenToken() { | ||
| return astraAuthenToken; | ||
| } | ||
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| private JSONObject getAstraClientSecretJson(String projectId, String secretId) throws Exception { | ||
| JSONObject astraSecretJson = new JSONObject(); | ||
| if (secretId == null || projectId == null) { | ||
| logger.error( | ||
| "Required Google Secret Manager properties are missing, please check."); | ||
| } else { | ||
| astraSecretJson = getClientSecretJson(projectId, secretId); | ||
| } | ||
| return astraSecretJson; | ||
| } | ||
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| private JSONObject getClientSecretJson(String projectId, String secretId) throws Exception { | ||
| JSONObject clientSecJsonObj = new JSONObject(); | ||
| ByteString payloadData = accessSecretVersion(projectId, secretId, ASTRA_SECRET_VERSION_ID); | ||
| if (ByteString.EMPTY != payloadData) | ||
| clientSecJsonObj = new JSONObject(payloadData.toString(Charset.defaultCharset())); | ||
| return clientSecJsonObj; | ||
| } | ||
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| private ByteString accessSecretVersion(String projectId, String secretId, String version) throws Exception { | ||
| ByteString payloadData = ByteString.EMPTY; | ||
| try (SecretManagerServiceClient client = SecretManagerServiceClient.create()) { | ||
| SecretVersionName secretVersionName = SecretVersionName.of(projectId, secretId, version); | ||
| // Access the secret version. | ||
| AccessSecretVersionResponse response = client.accessSecretVersion(secretVersionName); | ||
| payloadData = response.getPayload().getData(); | ||
| long payloadChecksum = response.getPayload().getDataCrc32C() & 0xFFFFFFFFL; | ||
| if (!validChecksum(payloadData, payloadChecksum)) | ||
| throw new Exception( | ||
| "The checksum received is invalid for Google Secret Paylod. Corrupted Data Detected!!"); | ||
| } | ||
| return payloadData; | ||
| } | ||
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| private boolean validChecksum(ByteString data, long crc32Checksum) { | ||
| long checksum = Hashing.crc32c().hashBytes(data.toByteArray()).asInt() & 0xFFFFFFFFL; // to convert it into long appended 0xFFFFFFFFL | ||
| return checksum == crc32Checksum; | ||
| } | ||
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| } |
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