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Side by Side Diff: chrome/browser/drive/drive_api_util.h

Issue 1190203002: Move (most of) chrome/browser/drive into components/drive/service. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebasing... Created 5 years, 5 months ago
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1 // Copyright (c) 2012 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 CHROME_BROWSER_DRIVE_DRIVE_API_UTIL_H_
6 #define CHROME_BROWSER_DRIVE_DRIVE_API_UTIL_H_
7
8 #include <string>
9
10 #include "base/md5.h"
11 #include "base/memory/scoped_ptr.h"
12 #include "google_apis/drive/drive_api_error_codes.h"
13 #include "google_apis/drive/drive_common_callbacks.h"
14
15 class GURL;
16
17 namespace base {
18 class CancellationFlag;
19 class FilePath;
20 class Value;
21 } // namespace base
22
23 namespace google_apis {
24 class ChangeList;
25 class ChangeResource;
26 class FileList;
27 class FileResource;
28 class ResourceEntry;
29 } // namespace google_apis
30
31 namespace net {
32 class IOBuffer;
33 } // namespace net
34
35 namespace storage {
36 class FileStreamReader;
37 } // namespace storage
38
39 namespace drive {
40 namespace util {
41
42 // Google Apps MIME types:
43 const char kGoogleDocumentMimeType[] = "application/vnd.google-apps.document";
44 const char kGoogleDrawingMimeType[] = "application/vnd.google-apps.drawing";
45 const char kGooglePresentationMimeType[] =
46 "application/vnd.google-apps.presentation";
47 const char kGoogleSpreadsheetMimeType[] =
48 "application/vnd.google-apps.spreadsheet";
49 const char kGoogleTableMimeType[] = "application/vnd.google-apps.table";
50 const char kGoogleFormMimeType[] = "application/vnd.google-apps.form";
51 const char kGoogleMapMimeType[] = "application/vnd.google-apps.map";
52 const char kDriveFolderMimeType[] = "application/vnd.google-apps.folder";
53
54 // Escapes ' to \' in the |str|. This is designed to use for string value of
55 // search parameter on Drive API v2.
56 // See also: https://developers.google.com/drive/search-parameters
57 std::string EscapeQueryStringValue(const std::string& str);
58
59 // Parses the query, and builds a search query for Drive API v2.
60 // This only supports:
61 // Regular query (e.g. dog => fullText contains 'dog')
62 // Conjunctions
63 // (e.g. dog cat => fullText contains 'dog' and fullText contains 'cat')
64 // Exclusion query (e.g. -cat => not fullText contains 'cat').
65 // Quoted query (e.g. "dog cat" => fullText contains 'dog cat').
66 // See also: https://developers.google.com/drive/search-parameters
67 std::string TranslateQuery(const std::string& original_query);
68
69 // If |resource_id| is in the old resource ID format used by WAPI, converts it
70 // into the new format.
71 std::string CanonicalizeResourceId(const std::string& resource_id);
72
73 // Returns the (base-16 encoded) MD5 digest of the file content at |file_path|,
74 // or an empty string if an error is found.
75 std::string GetMd5Digest(const base::FilePath& file_path,
76 const base::CancellationFlag* cancellation_flag);
77
78 // Computes the (base-16 encoded) MD5 digest of data extracted from a file
79 // stream.
80 class FileStreamMd5Digester {
81 public:
82 typedef base::Callback<void(const std::string&)> ResultCallback;
83
84 FileStreamMd5Digester();
85 ~FileStreamMd5Digester();
86
87 // Computes an MD5 digest of data read from the given |streamReader|. The
88 // work occurs asynchronously, and the resulting hash is returned via the
89 // |callback|. If an error occurs, |callback| is called with an empty string.
90 // Only one stream can be processed at a time by each digester. Do not call
91 // GetMd5Digest before the results of a previous call have been returned.
92 void GetMd5Digest(scoped_ptr<storage::FileStreamReader> stream_reader,
93 const ResultCallback& callback);
94
95 private:
96 // Kicks off a read of the next chunk from the stream.
97 void ReadNextChunk(const ResultCallback& callback);
98 // Handles the incoming chunk of data from a stream read.
99 void OnChunkRead(const ResultCallback& callback, int bytes_read);
100
101 // Maximum chunk size for read operations.
102 scoped_ptr<storage::FileStreamReader> reader_;
103 scoped_refptr<net::IOBuffer> buffer_;
104 base::MD5Context md5_context_;
105
106 DISALLOW_COPY_AND_ASSIGN(FileStreamMd5Digester);
107 };
108
109 // Returns preferred file extension for hosted documents which have given mime
110 // type.
111 std::string GetHostedDocumentExtension(const std::string& mime_type);
112
113 // Returns true if the given mime type is corresponding to one of known hosted
114 // document types.
115 bool IsKnownHostedDocumentMimeType(const std::string& mime_type);
116
117 // Returns true if the given file path has an extension corresponding to one of
118 // hosted document types.
119 bool HasHostedDocumentExtension(const base::FilePath& path);
120
121 } // namespace util
122 } // namespace drive
123
124 #endif // CHROME_BROWSER_DRIVE_DRIVE_API_UTIL_H_
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