Examples with EncryptionMaterialsFactory com.amazonaws.services.s3.model.EncryptionMaterialsFactory used on opensource projects

Example 1 with EncryptionMaterialsFactory

use of com.amazonaws.services.s3.model.EncryptionMaterialsFactory in project aws-sdk-android by aws-amplify.

the class S3CryptoModuleBase method createContentCryptoMaterial.

/**
 * Creates and returns a non-null content crypto material for the given
 * request.
 *
 * @throws AmazonClientException if no encryption material can be found.
 */
protected final ContentCryptoMaterial createContentCryptoMaterial(AmazonWebServiceRequest req) {
    if (req instanceof EncryptionMaterialsFactory) {
        // per request level encryption materials
        final EncryptionMaterialsFactory f = (EncryptionMaterialsFactory) req;
        final EncryptionMaterials materials = f.getEncryptionMaterials();
        if (materials != null) {
            return buildContentCryptoMaterial(materials, cryptoConfig.getCryptoProvider(), req);
        }
    }
    if (req instanceof MaterialsDescriptionProvider) {
        // per request level material description
        final MaterialsDescriptionProvider mdp = (MaterialsDescriptionProvider) req;
        final Map<String, String> matdescReq = mdp.getMaterialsDescription();
        final ContentCryptoMaterial ccm = newContentCryptoMaterial(kekMaterialsProvider, matdescReq, cryptoConfig.getCryptoProvider(), req);
        if (ccm != null) {
            return ccm;
        }
        if (matdescReq != null) {
            // check to see if KMS is in use and if so we should fall thru
            // to the s3 client level encryption material
            final EncryptionMaterials material = kekMaterialsProvider.getEncryptionMaterials();
            if (!material.isKMSEnabled()) {
                throw new AmazonClientException("No material available from the encryption material provider for description " + matdescReq);
            }
        }
    // if there is no material description, fall thru to use
    // the per s3 client level encryption  materials
    }
    // per s3 client level encryption materials
    return newContentCryptoMaterial(this.kekMaterialsProvider, cryptoConfig.getCryptoProvider(), req);
}