1 // Copyright 2013 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 #include "webkit/browser/fileapi/dragged_file_util.h"
6
7 #include <string>
8 #include <vector>
9
10 #include "base/file_util.h"
11 #include "webkit/browser/fileapi/file_system_context.h"
12 #include "webkit/browser/fileapi/file_system_operation_context.h"
13 #include "webkit/browser/fileapi/file_system_url.h"
14 #include "webkit/browser/fileapi/isolated_context.h"
15 #include "webkit/browser/fileapi/native_file_util.h"
16 #include "webkit/common/blob/shareable_file_reference.h"
17
18 namespace fileapi {
19
20 typedef IsolatedContext::MountPointInfo FileInfo;
21
22 namespace {
23
24 // Simply enumerate each path from a given fileinfo set.
25 // Used to enumerate top-level paths of an isolated filesystem.
26 class SetFileEnumerator : public FileSystemFileUtil::AbstractFileEnumerator {
27 public:
SetFileEnumerator(const std::vector<FileInfo> & files)28 explicit SetFileEnumerator(const std::vector<FileInfo>& files)
29 : files_(files) {
30 file_iter_ = files_.begin();
31 }
~SetFileEnumerator()32 virtual ~SetFileEnumerator() {}
33
34 // AbstractFileEnumerator overrides.
Next()35 virtual base::FilePath Next() OVERRIDE {
36 if (file_iter_ == files_.end())
37 return base::FilePath();
38 base::FilePath platform_file = (file_iter_++)->path;
39 NativeFileUtil::GetFileInfo(platform_file, &file_info_);
40 return platform_file;
41 }
Size()42 virtual int64 Size() OVERRIDE { return file_info_.size; }
IsDirectory()43 virtual bool IsDirectory() OVERRIDE { return file_info_.is_directory; }
LastModifiedTime()44 virtual base::Time LastModifiedTime() OVERRIDE {
45 return file_info_.last_modified;
46 }
47
48 private:
49 std::vector<FileInfo> files_;
50 std::vector<FileInfo>::const_iterator file_iter_;
51 base::File::Info file_info_;
52 };
53
54 } // namespace
55
56 //-------------------------------------------------------------------------
57
DraggedFileUtil()58 DraggedFileUtil::DraggedFileUtil() {}
59
GetFileInfo(FileSystemOperationContext * context,const FileSystemURL & url,base::File::Info * file_info,base::FilePath * platform_path)60 base::File::Error DraggedFileUtil::GetFileInfo(
61 FileSystemOperationContext* context,
62 const FileSystemURL& url,
63 base::File::Info* file_info,
64 base::FilePath* platform_path) {
65 DCHECK(file_info);
66 std::string filesystem_id;
67 DCHECK(url.is_valid());
68 if (url.path().empty()) {
69 // The root directory case.
70 // For now we leave three time fields (modified/accessed/creation time)
71 // NULL as it is not really clear what to be set for this virtual directory.
72 // TODO(kinuko): Maybe we want to set the time when this filesystem is
73 // created (i.e. when the files/directories are dropped).
74 file_info->is_directory = true;
75 file_info->is_symbolic_link = false;
76 file_info->size = 0;
77 return base::File::FILE_OK;
78 }
79 base::File::Error error =
80 NativeFileUtil::GetFileInfo(url.path(), file_info);
81 if (base::IsLink(url.path()) && !base::FilePath().IsParent(url.path())) {
82 // Don't follow symlinks unless it's the one that are selected by the user.
83 return base::File::FILE_ERROR_NOT_FOUND;
84 }
85 if (error == base::File::FILE_OK)
86 *platform_path = url.path();
87 return error;
88 }
89
90 scoped_ptr<FileSystemFileUtil::AbstractFileEnumerator>
CreateFileEnumerator(FileSystemOperationContext * context,const FileSystemURL & root)91 DraggedFileUtil::CreateFileEnumerator(
92 FileSystemOperationContext* context,
93 const FileSystemURL& root) {
94 DCHECK(root.is_valid());
95 if (!root.path().empty())
96 return LocalFileUtil::CreateFileEnumerator(context, root);
97
98 // Root path case.
99 std::vector<FileInfo> toplevels;
100 IsolatedContext::GetInstance()->GetDraggedFileInfo(
101 root.filesystem_id(), &toplevels);
102 return scoped_ptr<AbstractFileEnumerator>(new SetFileEnumerator(toplevels));
103 }
104
105 } // namespace fileapi
106