1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
content / renderer / pepper / pepper_file_system_host.cc [blame]
// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/pepper/pepper_file_system_host.h"
#include <optional>
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "content/common/pepper_file_util.h"
#include "content/public/renderer/render_frame.h"
#include "content/public/renderer/renderer_ppapi_host.h"
#include "content/renderer/pepper/pepper_plugin_instance_impl.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/host/dispatch_host_message.h"
#include "ppapi/host/ppapi_host.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/shared_impl/file_system_util.h"
#include "ppapi/shared_impl/file_type_conversion.h"
#include "storage/common/file_system/file_system_util.h"
#include "third_party/blink/public/mojom/filesystem/file_system.mojom.h"
#include "third_party/blink/public/platform/browser_interface_broker_proxy.h"
#include "third_party/blink/public/web/web_document.h"
#include "third_party/blink/public/web/web_local_frame.h"
#include "third_party/blink/public/web/web_view.h"
namespace content {
namespace {
std::optional<blink::mojom::FileSystemType>
PepperFileSystemTypeToMojoFileSystemType(PP_FileSystemType type) {
switch (type) {
case PP_FILESYSTEMTYPE_LOCALTEMPORARY:
return blink::mojom::FileSystemType::kTemporary;
case PP_FILESYSTEMTYPE_LOCALPERSISTENT:
return blink::mojom::FileSystemType::kPersistent;
case PP_FILESYSTEMTYPE_EXTERNAL:
return blink::mojom::FileSystemType::kExternal;
default:
return std::nullopt;
}
}
} // namespace
PepperFileSystemHost::PepperFileSystemHost(RendererPpapiHost* host,
PP_Instance instance,
PP_Resource resource,
PP_FileSystemType type)
: ResourceHost(host->GetPpapiHost(), instance, resource),
renderer_ppapi_host_(host),
type_(type),
opened_(false),
called_open_(false) {}
PepperFileSystemHost::PepperFileSystemHost(RendererPpapiHost* host,
PP_Instance instance,
PP_Resource resource,
const GURL& root_url,
PP_FileSystemType type)
: ResourceHost(host->GetPpapiHost(), instance, resource),
renderer_ppapi_host_(host),
type_(type),
opened_(true),
root_url_(root_url),
called_open_(true) {}
PepperFileSystemHost::~PepperFileSystemHost() {}
int32_t PepperFileSystemHost::OnResourceMessageReceived(
const IPC::Message& msg,
ppapi::host::HostMessageContext* context) {
PPAPI_BEGIN_MESSAGE_MAP(PepperFileSystemHost, msg)
PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_FileSystem_Open,
OnHostMsgOpen)
PPAPI_DISPATCH_HOST_RESOURCE_CALL(
PpapiHostMsg_FileSystem_InitIsolatedFileSystem,
OnHostMsgInitIsolatedFileSystem)
PPAPI_END_MESSAGE_MAP()
return PP_ERROR_FAILED;
}
bool PepperFileSystemHost::IsFileSystemHost() { return true; }
void PepperFileSystemHost::DidOpenFileSystem(
const std::string& /* name_unused */,
const GURL& root,
base::File::Error error) {
if (error != base::File::FILE_OK) {
DidFailOpenFileSystem(error);
return;
}
opened_ = true;
root_url_ = root;
reply_context_.params.set_result(PP_OK);
host()->SendReply(reply_context_, PpapiPluginMsg_FileSystem_OpenReply());
reply_context_ = ppapi::host::ReplyMessageContext();
}
void PepperFileSystemHost::DidFailOpenFileSystem(base::File::Error error) {
int32_t pp_error = ppapi::FileErrorToPepperError(error);
opened_ = (pp_error == PP_OK);
reply_context_.params.set_result(pp_error);
host()->SendReply(reply_context_, PpapiPluginMsg_FileSystem_OpenReply());
reply_context_ = ppapi::host::ReplyMessageContext();
}
int32_t PepperFileSystemHost::OnHostMsgOpen(
ppapi::host::HostMessageContext* context,
int64_t expected_size) {
// Not allow multiple opens.
if (called_open_)
return PP_ERROR_INPROGRESS;
called_open_ = true;
std::optional<blink::mojom::FileSystemType> file_system_type =
PepperFileSystemTypeToMojoFileSystemType(type_);
if (!file_system_type.has_value())
return PP_ERROR_FAILED;
GURL document_url = renderer_ppapi_host_->GetDocumentURL(pp_instance());
if (!document_url.is_valid())
return PP_ERROR_FAILED;
reply_context_ = context->MakeReplyMessageContext();
blink::mojom::FileSystemManager* file_system_manager = GetFileSystemManager();
if (file_system_manager == nullptr)
return PP_ERROR_FAILED;
file_system_manager->Open(
url::Origin::Create(document_url), file_system_type.value(),
base::BindOnce(&PepperFileSystemHost::DidOpenFileSystem,
weak_ptr_factory_.GetWeakPtr()));
return PP_OK_COMPLETIONPENDING;
}
int32_t PepperFileSystemHost::OnHostMsgInitIsolatedFileSystem(
ppapi::host::HostMessageContext* context,
const std::string& fsid,
PP_IsolatedFileSystemType_Private type) {
// Do not allow multiple opens.
if (called_open_)
return PP_ERROR_INPROGRESS;
called_open_ = true;
// Do a sanity check.
if (!storage::ValidateIsolatedFileSystemId(fsid))
return PP_ERROR_BADARGUMENT;
RenderFrame* frame =
renderer_ppapi_host_->GetRenderFrameForInstance(pp_instance());
if (!frame)
return PP_ERROR_FAILED;
url::Origin main_frame_origin(
frame->GetWebView()->MainFrame()->GetSecurityOrigin());
const std::string root_name = ppapi::IsolatedFileSystemTypeToRootName(type);
if (root_name.empty())
return PP_ERROR_BADARGUMENT;
root_url_ = GURL(storage::GetIsolatedFileSystemRootURIString(
main_frame_origin.GetURL(), fsid, root_name));
opened_ = true;
return PP_OK;
}
blink::mojom::FileSystemManager* PepperFileSystemHost::GetFileSystemManager() {
if (!file_system_manager_remote_) {
RenderFrame* frame =
renderer_ppapi_host_->GetRenderFrameForInstance(pp_instance());
if (!frame)
return nullptr;
frame->GetBrowserInterfaceBroker().GetInterface(
file_system_manager_remote_.BindNewPipeAndPassReceiver());
}
return file_system_manager_remote_.get();
}
} // namespace content