| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "content/browser/loader/upload_data_stream_builder.h" |
| |
| #include <limits> |
| #include <utility> |
| #include <vector> |
| |
| #include "base/logging.h" |
| #include "base/memory/ref_counted.h" |
| #include "content/browser/fileapi/upload_file_system_file_element_reader.h" |
| #include "content/common/resource_request_body.h" |
| #include "net/base/elements_upload_data_stream.h" |
| #include "net/base/upload_bytes_element_reader.h" |
| #include "net/base/upload_file_element_reader.h" |
| #include "storage/browser/blob/blob_data_handle.h" |
| #include "storage/browser/blob/blob_reader.h" |
| #include "storage/browser/blob/blob_storage_context.h" |
| #include "storage/browser/blob/upload_blob_element_reader.h" |
| |
| namespace disk_cache { |
| class Entry; |
| } |
| |
| namespace content { |
| namespace { |
| |
| // A subclass of net::UploadBytesElementReader which owns ResourceRequestBody. |
| class BytesElementReader : public net::UploadBytesElementReader { |
| public: |
| BytesElementReader(ResourceRequestBody* resource_request_body, |
| const ResourceRequestBody::Element& element) |
| : net::UploadBytesElementReader(element.bytes(), element.length()), |
| resource_request_body_(resource_request_body) { |
| DCHECK_EQ(ResourceRequestBody::Element::TYPE_BYTES, element.type()); |
| } |
| |
| ~BytesElementReader() override {} |
| |
| private: |
| scoped_refptr<ResourceRequestBody> resource_request_body_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BytesElementReader); |
| }; |
| |
| // A subclass of net::UploadFileElementReader which owns ResourceRequestBody. |
| // This class is necessary to ensure the BlobData and any attached shareable |
| // files survive until upload completion. |
| class FileElementReader : public net::UploadFileElementReader { |
| public: |
| FileElementReader(ResourceRequestBody* resource_request_body, |
| base::TaskRunner* task_runner, |
| const ResourceRequestBody::Element& element) |
| : net::UploadFileElementReader(task_runner, |
| element.path(), |
| element.offset(), |
| element.length(), |
| element.expected_modification_time()), |
| resource_request_body_(resource_request_body) { |
| DCHECK_EQ(ResourceRequestBody::Element::TYPE_FILE, element.type()); |
| } |
| |
| ~FileElementReader() override {} |
| |
| private: |
| scoped_refptr<ResourceRequestBody> resource_request_body_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FileElementReader); |
| }; |
| |
| } // namespace |
| |
| scoped_ptr<net::UploadDataStream> UploadDataStreamBuilder::Build( |
| ResourceRequestBody* body, |
| storage::BlobStorageContext* blob_context, |
| storage::FileSystemContext* file_system_context, |
| base::SingleThreadTaskRunner* file_task_runner) { |
| ScopedVector<net::UploadElementReader> element_readers; |
| for (const auto& element : *body->elements()) { |
| switch (element.type()) { |
| case ResourceRequestBody::Element::TYPE_BYTES: |
| element_readers.push_back(new BytesElementReader(body, element)); |
| break; |
| case ResourceRequestBody::Element::TYPE_FILE: |
| element_readers.push_back( |
| new FileElementReader(body, file_task_runner, element)); |
| break; |
| case ResourceRequestBody::Element::TYPE_FILE_FILESYSTEM: |
| // If |body| contains any filesystem URLs, the caller should have |
| // supplied a FileSystemContext. |
| DCHECK(file_system_context); |
| element_readers.push_back( |
| new content::UploadFileSystemFileElementReader( |
| file_system_context, |
| element.filesystem_url(), |
| element.offset(), |
| element.length(), |
| element.expected_modification_time())); |
| break; |
| case ResourceRequestBody::Element::TYPE_BLOB: { |
| DCHECK_EQ(std::numeric_limits<uint64_t>::max(), element.length()); |
| DCHECK_EQ(0ul, element.offset()); |
| scoped_ptr<storage::BlobDataHandle> handle = |
| blob_context->GetBlobDataFromUUID(element.blob_uuid()); |
| storage::BlobDataHandle* handle_ptr = handle.get(); |
| element_readers.push_back(new storage::UploadBlobElementReader( |
| handle_ptr->CreateReader(file_system_context, file_task_runner), |
| handle.Pass())); |
| break; |
| } |
| case ResourceRequestBody::Element::TYPE_DISK_CACHE_ENTRY: |
| case ResourceRequestBody::Element::TYPE_BYTES_DESCRIPTION: |
| case ResourceRequestBody::Element::TYPE_UNKNOWN: |
| NOTREACHED(); |
| break; |
| } |
| } |
| |
| return make_scoped_ptr( |
| new net::ElementsUploadDataStream(element_readers.Pass(), |
| body->identifier())); |
| } |
| |
| } // namespace content |