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| 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 COMPONENTS_SYNC_CORE_ATTACHMENTS_ATTACHMENT_DOWNLOADER_IMPL_H_ | |
| 6 #define COMPONENTS_SYNC_CORE_ATTACHMENTS_ATTACHMENT_DOWNLOADER_IMPL_H_ | |
| 7 | |
| 8 #include <stdint.h> | |
| 9 | |
| 10 #include <memory> | |
| 11 #include <string> | |
| 12 #include <unordered_map> | |
| 13 #include <vector> | |
| 14 | |
| 15 #include "base/gtest_prod_util.h" | |
| 16 #include "base/macros.h" | |
| 17 #include "base/threading/non_thread_safe.h" | |
| 18 #include "components/sync/base/model_type.h" | |
| 19 #include "components/sync/core/attachments/attachment_downloader.h" | |
| 20 #include "google_apis/gaia/oauth2_token_service_request.h" | |
| 21 #include "net/url_request/url_fetcher_delegate.h" | |
| 22 #include "net/url_request/url_request_context_getter.h" | |
| 23 #include "url/gurl.h" | |
| 24 | |
| 25 namespace base { | |
| 26 class RefCountedMemory; | |
| 27 } // namespace base | |
| 28 | |
| 29 namespace net { | |
| 30 class HttpResponseHeaders; | |
| 31 } // namespace net | |
| 32 | |
| 33 namespace syncer { | |
| 34 | |
| 35 // An implementation of AttachmentDownloader. | |
| 36 class AttachmentDownloaderImpl : public AttachmentDownloader, | |
| 37 public OAuth2TokenService::Consumer, | |
| 38 public net::URLFetcherDelegate, | |
| 39 public base::NonThreadSafe { | |
| 40 public: | |
| 41 // |sync_service_url| is the URL of the sync service. | |
| 42 // | |
| 43 // |url_request_context_getter| provides a URLRequestContext. | |
| 44 // | |
| 45 // |account_id| is the account id to use for downloads. | |
| 46 // | |
| 47 // |scopes| is the set of scopes to use for downloads. | |
| 48 // | |
| 49 // |token_service_provider| provides an OAuth2 token service. | |
| 50 // | |
| 51 // |store_birthday| is the raw, sync store birthday. | |
| 52 // | |
| 53 // |model_type| is the model type this downloader is used with. | |
| 54 AttachmentDownloaderImpl( | |
| 55 const GURL& sync_service_url, | |
| 56 const scoped_refptr<net::URLRequestContextGetter>& | |
| 57 url_request_context_getter, | |
| 58 const std::string& account_id, | |
| 59 const OAuth2TokenService::ScopeSet& scopes, | |
| 60 const scoped_refptr<OAuth2TokenServiceRequest::TokenServiceProvider>& | |
| 61 token_service_provider, | |
| 62 const std::string& store_birthday, | |
| 63 ModelType model_type); | |
| 64 ~AttachmentDownloaderImpl() override; | |
| 65 | |
| 66 // AttachmentDownloader implementation. | |
| 67 void DownloadAttachment(const AttachmentId& attachment_id, | |
| 68 const DownloadCallback& callback) override; | |
| 69 | |
| 70 // OAuth2TokenService::Consumer implementation. | |
| 71 void OnGetTokenSuccess(const OAuth2TokenService::Request* request, | |
| 72 const std::string& access_token, | |
| 73 const base::Time& expiration_time) override; | |
| 74 void OnGetTokenFailure(const OAuth2TokenService::Request* request, | |
| 75 const GoogleServiceAuthError& error) override; | |
| 76 | |
| 77 // net::URLFetcherDelegate implementation. | |
| 78 void OnURLFetchComplete(const net::URLFetcher* source) override; | |
| 79 | |
| 80 private: | |
| 81 FRIEND_TEST_ALL_PREFIXES(AttachmentDownloaderImplTest, | |
| 82 ExtractCrc32c_NoHeaders); | |
| 83 FRIEND_TEST_ALL_PREFIXES(AttachmentDownloaderImplTest, ExtractCrc32c_First); | |
| 84 FRIEND_TEST_ALL_PREFIXES(AttachmentDownloaderImplTest, ExtractCrc32c_TooLong); | |
| 85 FRIEND_TEST_ALL_PREFIXES(AttachmentDownloaderImplTest, ExtractCrc32c_None); | |
| 86 FRIEND_TEST_ALL_PREFIXES(AttachmentDownloaderImplTest, ExtractCrc32c_Empty); | |
| 87 | |
| 88 struct DownloadState; | |
| 89 typedef std::string AttachmentUrl; | |
| 90 typedef std::unordered_map<AttachmentUrl, std::unique_ptr<DownloadState>> | |
| 91 StateMap; | |
| 92 typedef std::vector<DownloadState*> StateList; | |
| 93 | |
| 94 std::unique_ptr<net::URLFetcher> CreateFetcher( | |
| 95 const AttachmentUrl& url, | |
| 96 const std::string& access_token); | |
| 97 void RequestAccessToken(DownloadState* download_state); | |
| 98 void ReportResult( | |
| 99 const DownloadState& download_state, | |
| 100 const DownloadResult& result, | |
| 101 const scoped_refptr<base::RefCountedString>& attachment_data); | |
| 102 | |
| 103 // Extract the crc32c from an X-Goog-Hash header in |headers|. | |
| 104 // | |
| 105 // Return true if a crc32c was found and useable for checking data integrity. | |
| 106 // "Usable" means headers are present, there is "x-goog-hash" header with | |
| 107 // "crc32c" hash in it, this hash is correctly base64 encoded 32 bit integer. | |
| 108 static bool ExtractCrc32c(const net::HttpResponseHeaders* headers, | |
| 109 uint32_t* crc32c); | |
| 110 | |
| 111 GURL sync_service_url_; | |
| 112 scoped_refptr<net::URLRequestContextGetter> url_request_context_getter_; | |
| 113 | |
| 114 std::string account_id_; | |
| 115 OAuth2TokenService::ScopeSet oauth2_scopes_; | |
| 116 scoped_refptr<OAuth2TokenServiceRequest::TokenServiceProvider> | |
| 117 token_service_provider_; | |
| 118 std::unique_ptr<OAuth2TokenService::Request> access_token_request_; | |
| 119 std::string raw_store_birthday_; | |
| 120 | |
| 121 StateMap state_map_; | |
| 122 // |requests_waiting_for_access_token_| only keeps references to DownloadState | |
| 123 // objects while access token request is pending. It doesn't control objects' | |
| 124 // lifetime. | |
| 125 StateList requests_waiting_for_access_token_; | |
| 126 | |
| 127 ModelType model_type_; | |
| 128 | |
| 129 DISALLOW_COPY_AND_ASSIGN(AttachmentDownloaderImpl); | |
| 130 }; | |
| 131 | |
| 132 } // namespace syncer | |
| 133 | |
| 134 #endif // COMPONENTS_SYNC_CORE_ATTACHMENTS_ATTACHMENT_DOWNLOADER_IMPL_H_ | |
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Chromium Code Reviews
Issue 2399953002:
[Sync] Move attachments code out of core/. (Closed)
