src/sync/internal_api/public/attachments/attachment_uploader_impl.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef SYNC_INTERNAL_API_PUBLIC_ATTACHMENTS_ATTACHMENT_UPLOADER_IMPL_H_
   6 #define SYNC_INTERNAL_API_PUBLIC_ATTACHMENTS_ATTACHMENT_UPLOADER_IMPL_H_
   7
   8 #include "base/containers/scoped_ptr_hash_map.h"
   9 #include "base/gtest_prod_util.h"
  10 #include "base/threading/non_thread_safe.h"
  11 #include "google_apis/gaia/oauth2_token_service_request.h"
  12 #include "net/url_request/url_request_context_getter.h"
  13 #include "sync/internal_api/public/attachments/attachment_uploader.h"
  14
  15 class GURL;
  16
  17 namespace net {
  18 class URLRequestContextGetter;
  19 }  // namespace net
  20
  21 namespace syncer {
  22
  23 // An implementation of AttachmentUploader.
  24 class SYNC_EXPORT AttachmentUploaderImpl : public AttachmentUploader,
  25                                            public base::NonThreadSafe {
  26  public:
  27   // |sync_service_url| is the URL of the sync service.
  28   //
  29   // |url_request_context_getter| provides a URLRequestContext.
  30   //
  31   // |account_id| is the account id to use for uploads.
  32   //
  33   // |scopes| is the set of scopes to use for uploads.
  34   //
  35   // |token_service_provider| provides an OAuth2 token service.
  36   AttachmentUploaderImpl(
  37       const GURL& sync_service_url,
  38       const scoped_refptr<net::URLRequestContextGetter>&
  39           url_request_context_getter,
  40       const std::string& account_id,
  41       const OAuth2TokenService::ScopeSet& scopes,
  42       const scoped_refptr<OAuth2TokenServiceRequest::TokenServiceProvider>&
  43           token_service_provider);
  44   ~AttachmentUploaderImpl() override;
  45
  46   // AttachmentUploader implementation.
  47   void UploadAttachment(const Attachment& attachment,
  48                         const UploadCallback& callback) override;
  49
  50   // Return the URL for the given |sync_service_url| and |attachment_id|.
  51   static GURL GetURLForAttachmentId(const GURL& sync_service_url,
  52                                     const AttachmentId& attachment_id);
  53
  54   // Return the crc32c of the memory described by |data| and |size|.
  55   //
  56   // The value is base64 encoded, big-endian format.  Suitable for use in the
  57   // X-Goog-Hash header
  58   // (https://cloud.google.com/storage/docs/reference-headers#xgooghash).
  59   //
  60   // Potentially expensive.
  61   static std::string ComputeCrc32cHash(const char* data, size_t size);
  62
  63  private:
  64   class UploadState;
  65   typedef std::string UniqueId;
  66   typedef base::ScopedPtrHashMap<UniqueId, UploadState> StateMap;
  67
  68   void OnUploadStateStopped(const UniqueId& unique_id);
  69
  70   GURL sync_service_url_;
  71   scoped_refptr<net::URLRequestContextGetter> url_request_context_getter_;
  72   std::string account_id_;
  73   OAuth2TokenService::ScopeSet scopes_;
  74   scoped_refptr<OAuth2TokenServiceRequest::TokenServiceProvider>
  75       token_service_provider_;
  76   StateMap state_map_;
  77
  78   // Must be last data member.
  79   base::WeakPtrFactory<AttachmentUploaderImpl> weak_ptr_factory_;
  80
  81   DISALLOW_COPY_AND_ASSIGN(AttachmentUploaderImpl);
  82 };
  83
  84 }  // namespace syncer
  85
  86 #endif  // SYNC_INTERNAL_API_PUBLIC_ATTACHMENTS_ATTACHMENT_UPLOADER_IMPL_H_