/
HttpStorageRpc.java
1621 lines (1535 loc) · 60.5 KB
/
HttpStorageRpc.java
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/*
* Copyright 2015 Google LLC
*
* 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
*
* http://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 com.google.cloud.storage.spi.v1;
import static com.google.common.base.MoreObjects.firstNonNull;
import static com.google.common.base.Preconditions.checkArgument;
import static java.net.HttpURLConnection.HTTP_NOT_FOUND;
import com.google.api.client.googleapis.batch.BatchRequest;
import com.google.api.client.googleapis.batch.json.JsonBatchCallback;
import com.google.api.client.googleapis.json.GoogleJsonError;
import com.google.api.client.http.ByteArrayContent;
import com.google.api.client.http.EmptyContent;
import com.google.api.client.http.GenericUrl;
import com.google.api.client.http.HttpHeaders;
import com.google.api.client.http.HttpRequest;
import com.google.api.client.http.HttpRequestFactory;
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.HttpResponse;
import com.google.api.client.http.HttpResponseException;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.InputStreamContent;
import com.google.api.client.http.json.JsonHttpContent;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.services.storage.Storage;
import com.google.api.services.storage.Storage.Objects.Get;
import com.google.api.services.storage.Storage.Objects.Insert;
import com.google.api.services.storage.model.Bucket;
import com.google.api.services.storage.model.BucketAccessControl;
import com.google.api.services.storage.model.Buckets;
import com.google.api.services.storage.model.ComposeRequest;
import com.google.api.services.storage.model.ComposeRequest.SourceObjects.ObjectPreconditions;
import com.google.api.services.storage.model.HmacKey;
import com.google.api.services.storage.model.HmacKeyMetadata;
import com.google.api.services.storage.model.HmacKeysMetadata;
import com.google.api.services.storage.model.Notification;
import com.google.api.services.storage.model.ObjectAccessControl;
import com.google.api.services.storage.model.Objects;
import com.google.api.services.storage.model.Policy;
import com.google.api.services.storage.model.ServiceAccount;
import com.google.api.services.storage.model.StorageObject;
import com.google.api.services.storage.model.TestIamPermissionsResponse;
import com.google.cloud.Tuple;
import com.google.cloud.http.CensusHttpModule;
import com.google.cloud.http.HttpTransportOptions;
import com.google.cloud.storage.StorageException;
import com.google.cloud.storage.StorageOptions;
import com.google.common.base.Function;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.common.hash.HashFunction;
import com.google.common.hash.Hashing;
import com.google.common.io.BaseEncoding;
import io.opencensus.common.Scope;
import io.opencensus.trace.AttributeValue;
import io.opencensus.trace.Span;
import io.opencensus.trace.Status;
import io.opencensus.trace.Tracer;
import io.opencensus.trace.Tracing;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.math.BigInteger;
import java.net.FileNameMap;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
public class HttpStorageRpc implements StorageRpc {
public static final String DEFAULT_PROJECTION = "full";
public static final String NO_ACL_PROJECTION = "noAcl";
private static final String ENCRYPTION_KEY_PREFIX = "x-goog-encryption-";
private static final String SOURCE_ENCRYPTION_KEY_PREFIX = "x-goog-copy-source-encryption-";
// declare this HttpStatus code here as it's not included in java.net.HttpURLConnection
private static final int SC_REQUESTED_RANGE_NOT_SATISFIABLE = 416;
private final StorageOptions options;
private final Storage storage;
private final Tracer tracer = Tracing.getTracer();
private final CensusHttpModule censusHttpModule;
private final HttpRequestInitializer batchRequestInitializer;
private static final long MEGABYTE = 1024L * 1024L;
private static final FileNameMap FILE_NAME_MAP = URLConnection.getFileNameMap();
public HttpStorageRpc(StorageOptions options) {
HttpTransportOptions transportOptions = (HttpTransportOptions) options.getTransportOptions();
HttpTransport transport = transportOptions.getHttpTransportFactory().create();
HttpRequestInitializer initializer = transportOptions.getHttpRequestInitializer(options);
this.options = options;
// Open Census initialization
censusHttpModule = new CensusHttpModule(tracer, true);
initializer = censusHttpModule.getHttpRequestInitializer(initializer);
batchRequestInitializer = censusHttpModule.getHttpRequestInitializer(null);
storage =
new Storage.Builder(transport, new JacksonFactory(), initializer)
.setRootUrl(options.getHost())
.setApplicationName(options.getApplicationName())
.build();
}
private class DefaultRpcBatch implements RpcBatch {
// Batch size is limited as, due to some current service implementation details, the service
// performs better if the batches are split for better distribution. See
// https://github.com/googleapis/google-cloud-java/pull/952#issuecomment-213466772 for
// background.
private static final int MAX_BATCH_SIZE = 100;
private final Storage storage;
private final LinkedList<BatchRequest> batches;
private int currentBatchSize;
private DefaultRpcBatch(Storage storage) {
this.storage = storage;
batches = new LinkedList<>();
// add OpenCensus HttpRequestInitializer
batches.add(storage.batch(batchRequestInitializer));
}
@Override
public void addDelete(
StorageObject storageObject, RpcBatch.Callback<Void> callback, Map<Option, ?> options) {
try {
if (currentBatchSize == MAX_BATCH_SIZE) {
batches.add(storage.batch());
currentBatchSize = 0;
}
deleteCall(storageObject, options).queue(batches.getLast(), toJsonCallback(callback));
currentBatchSize++;
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public void addPatch(
StorageObject storageObject,
RpcBatch.Callback<StorageObject> callback,
Map<Option, ?> options) {
try {
if (currentBatchSize == MAX_BATCH_SIZE) {
batches.add(storage.batch());
currentBatchSize = 0;
}
patchCall(storageObject, options).queue(batches.getLast(), toJsonCallback(callback));
currentBatchSize++;
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public void addGet(
StorageObject storageObject,
RpcBatch.Callback<StorageObject> callback,
Map<Option, ?> options) {
try {
if (currentBatchSize == MAX_BATCH_SIZE) {
batches.add(storage.batch());
currentBatchSize = 0;
}
getCall(storageObject, options).queue(batches.getLast(), toJsonCallback(callback));
currentBatchSize++;
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public void submit() {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_BATCH_SUBMIT);
Scope scope = tracer.withSpan(span);
try {
span.putAttribute("batch size", AttributeValue.longAttributeValue(batches.size()));
for (BatchRequest batch : batches) {
// TODO(hailongwen@): instrument 'google-api-java-client' to further break down the span.
// Here we only add a annotation to at least know how much time each batch takes.
span.addAnnotation("Execute batch request");
batch.setBatchUrl(
new GenericUrl(String.format("%s/batch/storage/v1", options.getHost())));
batch.execute();
}
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
throw translate(ex);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
}
private static <T> JsonBatchCallback<T> toJsonCallback(final RpcBatch.Callback<T> callback) {
return new JsonBatchCallback<T>() {
@Override
public void onSuccess(T response, HttpHeaders httpHeaders) throws IOException {
callback.onSuccess(response);
}
@Override
public void onFailure(GoogleJsonError googleJsonError, HttpHeaders httpHeaders)
throws IOException {
callback.onFailure(googleJsonError);
}
};
}
private static StorageException translate(IOException exception) {
return new StorageException(exception);
}
private static StorageException translate(GoogleJsonError exception) {
return new StorageException(exception);
}
private static void setEncryptionHeaders(
HttpHeaders headers, String headerPrefix, Map<Option, ?> options) {
String key = Option.CUSTOMER_SUPPLIED_KEY.getString(options);
if (key != null) {
BaseEncoding base64 = BaseEncoding.base64();
HashFunction hashFunction = Hashing.sha256();
headers.set(headerPrefix + "algorithm", "AES256");
headers.set(headerPrefix + "key", key);
headers.set(
headerPrefix + "key-sha256",
base64.encode(hashFunction.hashBytes(base64.decode(key)).asBytes()));
}
}
/** Helper method to start a span. */
private Span startSpan(String spanName) {
return tracer
.spanBuilder(spanName)
.setRecordEvents(censusHttpModule.isRecordEvents())
.startSpan();
}
@Override
public Bucket create(Bucket bucket, Map<Option, ?> options) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_CREATE_BUCKET);
Scope scope = tracer.withSpan(span);
try {
return storage
.buckets()
.insert(this.options.getProjectId(), bucket)
.setProjection(DEFAULT_PROJECTION)
.setPredefinedAcl(Option.PREDEFINED_ACL.getString(options))
.setPredefinedDefaultObjectAcl(Option.PREDEFINED_DEFAULT_OBJECT_ACL.getString(options))
.execute();
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
throw translate(ex);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
@Override
public StorageObject create(
StorageObject storageObject, final InputStream content, Map<Option, ?> options) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_CREATE_OBJECT);
Scope scope = tracer.withSpan(span);
try {
Storage.Objects.Insert insert =
storage
.objects()
.insert(
storageObject.getBucket(),
storageObject,
new InputStreamContent(detectContentType(storageObject, options), content));
insert.getMediaHttpUploader().setDirectUploadEnabled(true);
Boolean disableGzipContent = Option.IF_DISABLE_GZIP_CONTENT.getBoolean(options);
if (disableGzipContent != null) {
insert.setDisableGZipContent(disableGzipContent);
}
setEncryptionHeaders(insert.getRequestHeaders(), ENCRYPTION_KEY_PREFIX, options);
return insert
.setProjection(DEFAULT_PROJECTION)
.setPredefinedAcl(Option.PREDEFINED_ACL.getString(options))
.setIfMetagenerationMatch(Option.IF_METAGENERATION_MATCH.getLong(options))
.setIfMetagenerationNotMatch(Option.IF_METAGENERATION_NOT_MATCH.getLong(options))
.setIfGenerationMatch(Option.IF_GENERATION_MATCH.getLong(options))
.setIfGenerationNotMatch(Option.IF_GENERATION_NOT_MATCH.getLong(options))
.setUserProject(Option.USER_PROJECT.getString(options))
.setKmsKeyName(Option.KMS_KEY_NAME.getString(options))
.execute();
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
throw translate(ex);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
@Override
public Tuple<String, Iterable<Bucket>> list(Map<Option, ?> options) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_LIST_BUCKETS);
Scope scope = tracer.withSpan(span);
try {
Buckets buckets =
storage
.buckets()
.list(this.options.getProjectId())
.setProjection(DEFAULT_PROJECTION)
.setPrefix(Option.PREFIX.getString(options))
.setMaxResults(Option.MAX_RESULTS.getLong(options))
.setPageToken(Option.PAGE_TOKEN.getString(options))
.setFields(Option.FIELDS.getString(options))
.setUserProject(Option.USER_PROJECT.getString(options))
.execute();
return Tuple.<String, Iterable<Bucket>>of(buckets.getNextPageToken(), buckets.getItems());
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
throw translate(ex);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
@Override
public Tuple<String, Iterable<StorageObject>> list(final String bucket, Map<Option, ?> options) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_LIST_OBJECTS);
Scope scope = tracer.withSpan(span);
try {
Objects objects =
storage
.objects()
.list(bucket)
.setProjection(DEFAULT_PROJECTION)
.setVersions(Option.VERSIONS.getBoolean(options))
.setDelimiter(Option.DELIMITER.getString(options))
.setStartOffset(Option.START_OFF_SET.getString(options))
.setEndOffset(Option.END_OFF_SET.getString(options))
.setPrefix(Option.PREFIX.getString(options))
.setMaxResults(Option.MAX_RESULTS.getLong(options))
.setPageToken(Option.PAGE_TOKEN.getString(options))
.setFields(Option.FIELDS.getString(options))
.setUserProject(Option.USER_PROJECT.getString(options))
.execute();
Iterable<StorageObject> storageObjects =
Iterables.concat(
firstNonNull(objects.getItems(), ImmutableList.<StorageObject>of()),
objects.getPrefixes() != null
? Lists.transform(objects.getPrefixes(), objectFromPrefix(bucket))
: ImmutableList.<StorageObject>of());
return Tuple.of(objects.getNextPageToken(), storageObjects);
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
throw translate(ex);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
private static String detectContentType(StorageObject object, Map<Option, ?> options) {
String contentType = object.getContentType();
if (contentType != null) {
return contentType;
}
if (Boolean.TRUE == Option.DETECT_CONTENT_TYPE.get(options)) {
contentType = FILE_NAME_MAP.getContentTypeFor(object.getName().toLowerCase(Locale.ENGLISH));
}
return firstNonNull(contentType, "application/octet-stream");
}
private static Function<String, StorageObject> objectFromPrefix(final String bucket) {
return new Function<String, StorageObject>() {
@Override
public StorageObject apply(String prefix) {
return new StorageObject()
.set("isDirectory", true)
.setBucket(bucket)
.setName(prefix)
.setSize(BigInteger.ZERO);
}
};
}
@Override
public Bucket get(Bucket bucket, Map<Option, ?> options) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_GET_BUCKET);
Scope scope = tracer.withSpan(span);
try {
return storage
.buckets()
.get(bucket.getName())
.setProjection(DEFAULT_PROJECTION)
.setIfMetagenerationMatch(Option.IF_METAGENERATION_MATCH.getLong(options))
.setIfMetagenerationNotMatch(Option.IF_METAGENERATION_NOT_MATCH.getLong(options))
.setFields(Option.FIELDS.getString(options))
.setUserProject(Option.USER_PROJECT.getString(options))
.execute();
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
StorageException serviceException = translate(ex);
if (serviceException.getCode() == HTTP_NOT_FOUND) {
return null;
}
throw serviceException;
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
private Storage.Objects.Get getCall(StorageObject object, Map<Option, ?> options)
throws IOException {
Storage.Objects.Get get = storage.objects().get(object.getBucket(), object.getName());
setEncryptionHeaders(get.getRequestHeaders(), ENCRYPTION_KEY_PREFIX, options);
return get.setGeneration(object.getGeneration())
.setProjection(DEFAULT_PROJECTION)
.setIfMetagenerationMatch(Option.IF_METAGENERATION_MATCH.getLong(options))
.setIfMetagenerationNotMatch(Option.IF_METAGENERATION_NOT_MATCH.getLong(options))
.setIfGenerationMatch(Option.IF_GENERATION_MATCH.getLong(options))
.setIfGenerationNotMatch(Option.IF_GENERATION_NOT_MATCH.getLong(options))
.setFields(Option.FIELDS.getString(options))
.setUserProject(Option.USER_PROJECT.getString(options));
}
@Override
public StorageObject get(StorageObject object, Map<Option, ?> options) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_GET_OBJECT);
Scope scope = tracer.withSpan(span);
try {
return getCall(object, options).execute();
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
StorageException serviceException = translate(ex);
if (serviceException.getCode() == HTTP_NOT_FOUND) {
return null;
}
throw serviceException;
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
@Override
public Bucket patch(Bucket bucket, Map<Option, ?> options) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_PATCH_BUCKET);
Scope scope = tracer.withSpan(span);
try {
String projection = Option.PROJECTION.getString(options);
if (bucket.getIamConfiguration() != null
&& bucket.getIamConfiguration().getBucketPolicyOnly() != null
&& bucket.getIamConfiguration().getBucketPolicyOnly().getEnabled() != null
&& bucket.getIamConfiguration().getBucketPolicyOnly().getEnabled()) {
// If BucketPolicyOnly is enabled, patch calls will fail if ACL information is included in
// the request
bucket.setDefaultObjectAcl(null);
bucket.setAcl(null);
if (projection == null) {
projection = NO_ACL_PROJECTION;
}
}
return storage
.buckets()
.patch(bucket.getName(), bucket)
.setProjection(projection == null ? DEFAULT_PROJECTION : projection)
.setPredefinedAcl(Option.PREDEFINED_ACL.getString(options))
.setPredefinedDefaultObjectAcl(Option.PREDEFINED_DEFAULT_OBJECT_ACL.getString(options))
.setIfMetagenerationMatch(Option.IF_METAGENERATION_MATCH.getLong(options))
.setIfMetagenerationNotMatch(Option.IF_METAGENERATION_NOT_MATCH.getLong(options))
.setUserProject(Option.USER_PROJECT.getString(options))
.execute();
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
throw translate(ex);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
private Storage.Objects.Patch patchCall(StorageObject storageObject, Map<Option, ?> options)
throws IOException {
return storage
.objects()
.patch(storageObject.getBucket(), storageObject.getName(), storageObject)
.setProjection(DEFAULT_PROJECTION)
.setPredefinedAcl(Option.PREDEFINED_ACL.getString(options))
.setIfMetagenerationMatch(Option.IF_METAGENERATION_MATCH.getLong(options))
.setIfMetagenerationNotMatch(Option.IF_METAGENERATION_NOT_MATCH.getLong(options))
.setIfGenerationMatch(Option.IF_GENERATION_MATCH.getLong(options))
.setIfGenerationNotMatch(Option.IF_GENERATION_NOT_MATCH.getLong(options))
.setUserProject(Option.USER_PROJECT.getString(options));
}
@Override
public StorageObject patch(StorageObject storageObject, Map<Option, ?> options) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_PATCH_OBJECT);
Scope scope = tracer.withSpan(span);
try {
return patchCall(storageObject, options).execute();
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
throw translate(ex);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
@Override
public boolean delete(Bucket bucket, Map<Option, ?> options) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_DELETE_BUCKET);
Scope scope = tracer.withSpan(span);
try {
storage
.buckets()
.delete(bucket.getName())
.setIfMetagenerationMatch(Option.IF_METAGENERATION_MATCH.getLong(options))
.setIfMetagenerationNotMatch(Option.IF_METAGENERATION_NOT_MATCH.getLong(options))
.setUserProject(Option.USER_PROJECT.getString(options))
.execute();
return true;
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
StorageException serviceException = translate(ex);
if (serviceException.getCode() == HTTP_NOT_FOUND) {
return false;
}
throw serviceException;
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
private Storage.Objects.Delete deleteCall(StorageObject blob, Map<Option, ?> options)
throws IOException {
return storage
.objects()
.delete(blob.getBucket(), blob.getName())
.setGeneration(blob.getGeneration())
.setIfMetagenerationMatch(Option.IF_METAGENERATION_MATCH.getLong(options))
.setIfMetagenerationNotMatch(Option.IF_METAGENERATION_NOT_MATCH.getLong(options))
.setIfGenerationMatch(Option.IF_GENERATION_MATCH.getLong(options))
.setIfGenerationNotMatch(Option.IF_GENERATION_NOT_MATCH.getLong(options))
.setUserProject(Option.USER_PROJECT.getString(options));
}
@Override
public boolean delete(StorageObject blob, Map<Option, ?> options) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_DELETE_OBJECT);
Scope scope = tracer.withSpan(span);
try {
deleteCall(blob, options).execute();
return true;
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
StorageException serviceException = translate(ex);
if (serviceException.getCode() == HTTP_NOT_FOUND) {
return false;
}
throw serviceException;
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
@Override
public StorageObject compose(
Iterable<StorageObject> sources, StorageObject target, Map<Option, ?> targetOptions) {
ComposeRequest request = new ComposeRequest();
request.setDestination(target);
List<ComposeRequest.SourceObjects> sourceObjects = new ArrayList<>();
for (StorageObject source : sources) {
ComposeRequest.SourceObjects sourceObject = new ComposeRequest.SourceObjects();
sourceObject.setName(source.getName());
Long generation = source.getGeneration();
if (generation != null) {
sourceObject.setGeneration(generation);
sourceObject.setObjectPreconditions(
new ObjectPreconditions().setIfGenerationMatch(generation));
}
sourceObjects.add(sourceObject);
}
request.setSourceObjects(sourceObjects);
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_COMPOSE);
Scope scope = tracer.withSpan(span);
try {
return storage
.objects()
.compose(target.getBucket(), target.getName(), request)
.setIfMetagenerationMatch(Option.IF_METAGENERATION_MATCH.getLong(targetOptions))
.setIfGenerationMatch(Option.IF_GENERATION_MATCH.getLong(targetOptions))
.setUserProject(Option.USER_PROJECT.getString(targetOptions))
.execute();
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
throw translate(ex);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
@Override
public byte[] load(StorageObject from, Map<Option, ?> options) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_LOAD);
Scope scope = tracer.withSpan(span);
try {
Storage.Objects.Get getRequest =
storage
.objects()
.get(from.getBucket(), from.getName())
.setGeneration(from.getGeneration())
.setIfMetagenerationMatch(Option.IF_METAGENERATION_MATCH.getLong(options))
.setIfMetagenerationNotMatch(Option.IF_METAGENERATION_NOT_MATCH.getLong(options))
.setIfGenerationMatch(Option.IF_GENERATION_MATCH.getLong(options))
.setIfGenerationNotMatch(Option.IF_GENERATION_NOT_MATCH.getLong(options))
.setUserProject(Option.USER_PROJECT.getString(options));
setEncryptionHeaders(getRequest.getRequestHeaders(), ENCRYPTION_KEY_PREFIX, options);
ByteArrayOutputStream out = new ByteArrayOutputStream();
getRequest.executeMedia().download(out);
return out.toByteArray();
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
throw translate(ex);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
@Override
public RpcBatch createBatch() {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_CREATE_BATCH);
Scope scope = tracer.withSpan(span);
try {
return new DefaultRpcBatch(storage);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
private Get createReadRequest(StorageObject from, Map<Option, ?> options) throws IOException {
Get req =
storage
.objects()
.get(from.getBucket(), from.getName())
.setGeneration(from.getGeneration())
.setIfMetagenerationMatch(Option.IF_METAGENERATION_MATCH.getLong(options))
.setIfMetagenerationNotMatch(Option.IF_METAGENERATION_NOT_MATCH.getLong(options))
.setIfGenerationMatch(Option.IF_GENERATION_MATCH.getLong(options))
.setIfGenerationNotMatch(Option.IF_GENERATION_NOT_MATCH.getLong(options))
.setUserProject(Option.USER_PROJECT.getString(options));
setEncryptionHeaders(req.getRequestHeaders(), ENCRYPTION_KEY_PREFIX, options);
req.setReturnRawInputStream(true);
return req;
}
@Override
public long read(
StorageObject from, Map<Option, ?> options, long position, OutputStream outputStream) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_READ);
Scope scope = tracer.withSpan(span);
try {
Get req = createReadRequest(from, options);
req.getMediaHttpDownloader().setBytesDownloaded(position);
req.getMediaHttpDownloader().setDirectDownloadEnabled(true);
req.executeMediaAndDownloadTo(outputStream);
return req.getMediaHttpDownloader().getNumBytesDownloaded();
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
StorageException serviceException = translate(ex);
if (serviceException.getCode() == SC_REQUESTED_RANGE_NOT_SATISFIABLE) {
return 0;
}
throw serviceException;
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
@Override
public Tuple<String, byte[]> read(
StorageObject from, Map<Option, ?> options, long position, int bytes) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_READ);
Scope scope = tracer.withSpan(span);
try {
checkArgument(position >= 0, "Position should be non-negative, is " + position);
Get req = createReadRequest(from, options);
StringBuilder range = new StringBuilder();
range.append("bytes=").append(position).append("-").append(position + bytes - 1);
HttpHeaders requestHeaders = req.getRequestHeaders();
requestHeaders.setRange(range.toString());
ByteArrayOutputStream output = new ByteArrayOutputStream(bytes);
req.executeMedia().download(output);
String etag = req.getLastResponseHeaders().getETag();
return Tuple.of(etag, output.toByteArray());
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
StorageException serviceException = StorageException.translate(ex);
if (serviceException.getCode() == SC_REQUESTED_RANGE_NOT_SATISFIABLE) {
return Tuple.of(null, new byte[0]);
}
throw serviceException;
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
@Override
public void write(
String uploadId,
byte[] toWrite,
int toWriteOffset,
long destOffset,
int length,
boolean last) {
writeWithResponse(uploadId, toWrite, toWriteOffset, destOffset, length, last);
}
@Override
public long getCurrentUploadOffset(String uploadId) {
try {
GenericUrl url = new GenericUrl(uploadId);
HttpRequest httpRequest =
storage.getRequestFactory().buildPutRequest(url, new EmptyContent());
httpRequest.getHeaders().setContentRange("bytes */*");
// Turn off automatic redirects.
// HTTP 308 are returned if upload is incomplete.
// See: https://cloud.google.com/storage/docs/performing-resumable-uploads
httpRequest.setFollowRedirects(false);
HttpResponse response = null;
try {
response = httpRequest.execute();
int code = response.getStatusCode();
if (code == 201 || code == 200) {
throw new StorageException(0, "Resumable upload is already complete.");
}
StringBuilder sb = new StringBuilder();
sb.append("Not sure what occurred. Here's debugging information:\n");
sb.append("Response:\n").append(response.toString()).append("\n\n");
throw new StorageException(0, sb.toString());
} catch (HttpResponseException ex) {
int code = ex.getStatusCode();
if (code == 308 && ex.getHeaders().getRange() == null) {
// No progress has been made.
return 0;
} else if (code == 308 && ex.getHeaders().getRange() != null) {
// API returns last byte received offset
String range = ex.getHeaders().getRange();
// Return next byte offset by adding 1 to last byte received offset
return Long.parseLong(range.substring(range.indexOf("-") + 1)) + 1;
} else {
// Not certain what went wrong
StringBuilder sb = new StringBuilder();
sb.append("Not sure what occurred. Here's debugging information:\n");
sb.append("Response:\n").append(ex.toString()).append("\n\n");
throw new StorageException(0, sb.toString());
}
} finally {
if (response != null) {
response.disconnect();
}
}
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public StorageObject writeWithResponse(
String uploadId,
byte[] toWrite,
int toWriteOffset,
long destOffset,
int length,
boolean last) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_WRITE);
Scope scope = tracer.withSpan(span);
StorageObject updatedBlob = null;
try {
if (length == 0 && !last) {
return updatedBlob;
}
GenericUrl url = new GenericUrl(uploadId);
HttpRequest httpRequest =
storage
.getRequestFactory()
.buildPutRequest(url, new ByteArrayContent(null, toWrite, toWriteOffset, length));
long limit = destOffset + length;
StringBuilder range = new StringBuilder("bytes ");
if (length == 0) {
range.append('*');
} else {
range.append(destOffset).append('-').append(limit - 1);
}
range.append('/');
if (last) {
range.append(limit);
} else {
range.append('*');
}
httpRequest.getHeaders().setContentRange(range.toString());
if (last) {
httpRequest.setParser(storage.getObjectParser());
}
int code;
String message;
IOException exception = null;
HttpResponse response = null;
try {
response = httpRequest.execute();
code = response.getStatusCode();
message = response.getStatusMessage();
String contentType = response.getContentType();
if (last
&& (code == 200 || code == 201)
&& contentType != null
&& contentType.startsWith("application/json")) {
updatedBlob = response.parseAs(StorageObject.class);
}
} catch (HttpResponseException ex) {
exception = ex;
code = ex.getStatusCode();
message = ex.getStatusMessage();
} finally {
if (response != null) {
response.disconnect();
}
}
if (!last && code != 308 || last && !(code == 200 || code == 201)) {
if (exception != null) {
throw exception;
}
GoogleJsonError error = new GoogleJsonError();
error.setCode(code);
error.setMessage(message);
throw translate(error);
}
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
throw translate(ex);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
return updatedBlob;
}
@Override
public String open(StorageObject object, Map<Option, ?> options) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_OPEN);
Scope scope = tracer.withSpan(span);
try {
String kmsKeyName = object.getKmsKeyName();
if (kmsKeyName != null && kmsKeyName.contains("cryptoKeyVersions")) {
object.setKmsKeyName("");
}
Insert req = storage.objects().insert(object.getBucket(), object);
GenericUrl url = req.buildHttpRequest().getUrl();
String scheme = url.getScheme();
String host = url.getHost();
int port = url.getPort();
port = port > 0 ? port : url.toURL().getDefaultPort();
String path = "/upload" + url.getRawPath();
url = new GenericUrl(scheme + "://" + host + ":" + port + path);
url.set("uploadType", "resumable");
url.set("name", object.getName());
for (Option option : options.keySet()) {
Object content = option.get(options);
if (content != null) {
url.set(option.value(), content.toString());
}
}
JsonFactory jsonFactory = storage.getJsonFactory();
HttpRequestFactory requestFactory = storage.getRequestFactory();
HttpRequest httpRequest =
requestFactory.buildPostRequest(url, new JsonHttpContent(jsonFactory, object));
HttpHeaders requestHeaders = httpRequest.getHeaders();
requestHeaders.set("X-Upload-Content-Type", detectContentType(object, options));
String key = Option.CUSTOMER_SUPPLIED_KEY.getString(options);
if (key != null) {
BaseEncoding base64 = BaseEncoding.base64();
HashFunction hashFunction = Hashing.sha256();
requestHeaders.set("x-goog-encryption-algorithm", "AES256");
requestHeaders.set("x-goog-encryption-key", key);
requestHeaders.set(
"x-goog-encryption-key-sha256",
base64.encode(hashFunction.hashBytes(base64.decode(key)).asBytes()));
}
HttpResponse response = httpRequest.execute();
if (response.getStatusCode() != 200) {
GoogleJsonError error = new GoogleJsonError();
error.setCode(response.getStatusCode());
error.setMessage(response.getStatusMessage());
throw translate(error);
}
return response.getHeaders().getLocation();
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
throw translate(ex);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
@Override
public String open(String signedURL) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_OPEN);
Scope scope = tracer.withSpan(span);
try {
GenericUrl url = new GenericUrl(signedURL);
url.set("uploadType", "resumable");
String bytesArrayParameters = "";
byte[] bytesArray = new byte[bytesArrayParameters.length()];
HttpRequestFactory requestFactory = storage.getRequestFactory();
HttpRequest httpRequest =
requestFactory.buildPostRequest(
url, new ByteArrayContent("", bytesArray, 0, bytesArray.length));
HttpHeaders requestHeaders = httpRequest.getHeaders();
requestHeaders.set("X-Upload-Content-Type", "");
requestHeaders.set("x-goog-resumable", "start");
HttpResponse response = httpRequest.execute();
if (response.getStatusCode() != 201) {
GoogleJsonError error = new GoogleJsonError();
error.setCode(response.getStatusCode());
error.setMessage(response.getStatusMessage());
throw translate(error);
}
return response.getHeaders().getLocation();
} catch (IOException ex) {
span.setStatus(Status.UNKNOWN.withDescription(ex.getMessage()));
throw translate(ex);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
@Override
public RewriteResponse openRewrite(RewriteRequest rewriteRequest) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_OPEN_REWRITE);
Scope scope = tracer.withSpan(span);
try {
return rewrite(rewriteRequest, null);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
@Override
public RewriteResponse continueRewrite(RewriteResponse previousResponse) {
Span span = startSpan(HttpStorageRpcSpans.SPAN_NAME_CONTINUE_REWRITE);
Scope scope = tracer.withSpan(span);
try {
return rewrite(previousResponse.rewriteRequest, previousResponse.rewriteToken);
} finally {
scope.close();
span.end(HttpStorageRpcSpans.END_SPAN_OPTIONS);
}
}
private RewriteResponse rewrite(RewriteRequest req, String token) {
try {
String userProject = Option.USER_PROJECT.getString(req.sourceOptions);
if (userProject == null) {