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| |
| // This is based on chrome/browser/renderer_host/pepper/pepper_isolated_file_system_message_filter.cc: |
| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE.Chromium file. |
| |
| #include "pepper_isolated_file_system_message_filter.h" |
| |
| #include "base/macros.h" |
| #include "base/task/post_task.h" |
| #include "chrome/common/chrome_switches.h" |
| #include "content/public/browser/browser_ppapi_host.h" |
| #include "content/public/browser/browser_task_traits.h" |
| #include "content/public/browser/browser_thread.h" |
| #include "content/public/browser/child_process_security_policy.h" |
| #include "content/public/browser/render_view_host.h" |
| #include "ppapi/c/pp_errors.h" |
| #include "ppapi/host/dispatch_host_message.h" |
| #include "ppapi/host/host_message_context.h" |
| #include "ppapi/host/ppapi_host.h" |
| #include "ppapi/proxy/ppapi_messages.h" |
| #include "ppapi/shared_impl/file_system_util.h" |
| #include "storage/browser/file_system/isolated_context.h" |
| |
| namespace QtWebEngineCore { |
| |
| // static |
| PepperIsolatedFileSystemMessageFilter* PepperIsolatedFileSystemMessageFilter::Create(PP_Instance instance, content::BrowserPpapiHost *host) |
| { |
| int render_process_id; |
| int unused_render_frame_id; |
| if (!host->GetRenderFrameIDsForInstance(instance, &render_process_id, &unused_render_frame_id)) |
| return nullptr; |
| return new PepperIsolatedFileSystemMessageFilter(render_process_id, host->GetPpapiHost()); |
| } |
| |
| PepperIsolatedFileSystemMessageFilter::PepperIsolatedFileSystemMessageFilter(int render_process_id, |
| ppapi::host::PpapiHost *ppapi_host) |
| : m_render_process_id(render_process_id), |
| m_ppapi_host(ppapi_host) |
| {} |
| |
| PepperIsolatedFileSystemMessageFilter::~PepperIsolatedFileSystemMessageFilter() |
| {} |
| |
| scoped_refptr<base::TaskRunner> PepperIsolatedFileSystemMessageFilter::OverrideTaskRunnerForMessage(const IPC::Message &) |
| { |
| // In order to reach ExtensionSystem, we need to get ProfileManager first. |
| // ProfileManager lives in UI thread, so we need to do this in UI thread. |
| return base::CreateSingleThreadTaskRunner({content::BrowserThread::UI}); |
| } |
| |
| int32_t PepperIsolatedFileSystemMessageFilter::OnResourceMessageReceived(const IPC::Message& msg, ppapi::host::HostMessageContext *context) |
| { |
| PPAPI_BEGIN_MESSAGE_MAP(PepperIsolatedFileSystemMessageFilter, msg) |
| PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_IsolatedFileSystem_BrowserOpen, OnOpenFileSystem) |
| PPAPI_END_MESSAGE_MAP() |
| return PP_ERROR_FAILED; |
| } |
| |
| int32_t PepperIsolatedFileSystemMessageFilter::OnOpenFileSystem(ppapi::host::HostMessageContext *context, |
| PP_IsolatedFileSystemType_Private type) |
| { |
| switch (type) { |
| case PP_ISOLATEDFILESYSTEMTYPE_PRIVATE_INVALID: |
| break; |
| case PP_ISOLATEDFILESYSTEMTYPE_PRIVATE_CRX: |
| return PP_ERROR_NOTSUPPORTED; |
| case PP_ISOLATEDFILESYSTEMTYPE_PRIVATE_PLUGINPRIVATE: |
| return OpenPluginPrivateFileSystem(context); |
| } |
| NOTREACHED(); |
| context->reply_msg = PpapiPluginMsg_IsolatedFileSystem_BrowserOpenReply(std::string()); |
| return PP_ERROR_FAILED; |
| } |
| |
| int32_t PepperIsolatedFileSystemMessageFilter::OpenPluginPrivateFileSystem(ppapi::host::HostMessageContext *context) |
| { |
| DCHECK(m_ppapi_host); |
| // Only plugins with private permission can open the filesystem. |
| if (!m_ppapi_host->permissions().HasPermission(ppapi::PERMISSION_PRIVATE)) |
| return PP_ERROR_NOACCESS; |
| |
| const std::string& root_name = ppapi::IsolatedFileSystemTypeToRootName(PP_ISOLATEDFILESYSTEMTYPE_PRIVATE_PLUGINPRIVATE); |
| const std::string& fsid = |
| storage::IsolatedContext::GetInstance()->RegisterFileSystemForVirtualPath( |
| storage::kFileSystemTypePluginPrivate, root_name, base::FilePath()); |
| |
| // Grant full access of isolated filesystem to renderer process. |
| content::ChildProcessSecurityPolicy* policy = content::ChildProcessSecurityPolicy::GetInstance(); |
| policy->GrantCreateReadWriteFileSystem(m_render_process_id, fsid); |
| |
| context->reply_msg = PpapiPluginMsg_IsolatedFileSystem_BrowserOpenReply(fsid); |
| return PP_OK; |
| } |
| |
| } // namespace chrome |