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A system-wide installation of the Pepper Flash plugin is available from Adobe for Windows and Mac OS X platforms as a separate download. To enable automatic detection and loading of the system-wide installation pass the `--enable-system-flash` command-line flag. The Pepper Flash plugin can also be loaded by specifying the file path and version via the `--ppapi-flash-path=<path> --ppapi-flash-version=<version>` command-line flags. The version can be identified by viewing the manifest.json file in the same directory as the Pepper Flash plugin library.
135 lines
5.1 KiB
C++
135 lines
5.1 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "libcef/browser/pepper/pepper_flash_browser_host.h"
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#include "base/time/time.h"
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#include "content/public/browser/browser_context.h"
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#include "content/public/browser/browser_ppapi_host.h"
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#include "content/public/browser/browser_thread.h"
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#include "content/public/browser/render_process_host.h"
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#include "ipc/ipc_message_macros.h"
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#include "ppapi/c/pp_errors.h"
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#include "ppapi/c/private/ppb_flash.h"
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#include "ppapi/host/dispatch_host_message.h"
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#include "ppapi/proxy/ppapi_messages.h"
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#include "ppapi/proxy/resource_message_params.h"
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#include "ppapi/shared_impl/time_conversion.h"
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#include "url/gurl.h"
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#if defined(OS_WIN)
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#include <windows.h>
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#elif defined(OS_MACOSX)
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#include <CoreServices/CoreServices.h>
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#endif
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using content::BrowserPpapiHost;
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using content::BrowserThread;
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using content::RenderProcessHost;
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namespace {
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// Returns true if the page identified by (|url|, |first_party_url|) is allowed
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// to read cookies.
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bool IsReadingCookieAllowed(const GURL& url,
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const GURL& first_party_url) {
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return true;
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}
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// Returns true if the cookie set by a page identified by |url| should be
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// session only.
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bool IsCookieSessionOnly(const GURL& url) {
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return false;
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}
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} // namespace
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PepperFlashBrowserHost::PepperFlashBrowserHost(BrowserPpapiHost* host,
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PP_Instance instance,
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PP_Resource resource)
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: ResourceHost(host->GetPpapiHost(), instance, resource),
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host_(host) {
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int unused;
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host->GetRenderFrameIDsForInstance(instance, &render_process_id_, &unused);
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}
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PepperFlashBrowserHost::~PepperFlashBrowserHost() {}
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int32_t PepperFlashBrowserHost::OnResourceMessageReceived(
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const IPC::Message& msg,
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ppapi::host::HostMessageContext* context) {
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PPAPI_BEGIN_MESSAGE_MAP(PepperFlashBrowserHost, msg)
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PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_Flash_UpdateActivity,
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OnUpdateActivity)
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PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_Flash_GetLocalTimeZoneOffset,
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OnGetLocalTimeZoneOffset)
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PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(
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PpapiHostMsg_Flash_GetLocalDataRestrictions, OnGetLocalDataRestrictions)
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PPAPI_END_MESSAGE_MAP()
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return PP_ERROR_FAILED;
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}
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int32_t PepperFlashBrowserHost::OnUpdateActivity(
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ppapi::host::HostMessageContext* host_context) {
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#if defined(OS_WIN)
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// Reading then writing back the same value to the screensaver timeout system
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// setting resets the countdown which prevents the screensaver from turning
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// on "for a while". As long as the plugin pings us with this message faster
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// than the screensaver timeout, it won't go on.
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int value = 0;
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if (SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT, 0, &value, 0))
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SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, value, NULL, 0);
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#elif defined(OS_MACOSX)
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UpdateSystemActivity(OverallAct);
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#else
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// TODO(brettw) implement this for other platforms.
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#endif
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return PP_OK;
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}
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int32_t PepperFlashBrowserHost::OnGetLocalTimeZoneOffset(
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ppapi::host::HostMessageContext* host_context,
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const base::Time& t) {
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// The reason for this processing being in the browser process is that on
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// Linux, the localtime calls require filesystem access prohibited by the
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// sandbox.
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host_context->reply_msg = PpapiPluginMsg_Flash_GetLocalTimeZoneOffsetReply(
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ppapi::PPGetLocalTimeZoneOffset(t));
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return PP_OK;
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}
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int32_t PepperFlashBrowserHost::OnGetLocalDataRestrictions(
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ppapi::host::HostMessageContext* context) {
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// Getting the Flash LSO settings requires using the CookieSettings which
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// belong to the profile which lives on the UI thread. We lazily initialize
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// |cookie_settings_| by grabbing the reference from the UI thread and then
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// call |GetLocalDataRestrictions| with it.
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GURL document_url = host_->GetDocumentURLForInstance(pp_instance());
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GURL plugin_url = host_->GetPluginURLForInstance(pp_instance());
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GetLocalDataRestrictions(context->MakeReplyMessageContext(),
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document_url,
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plugin_url);
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return PP_OK_COMPLETIONPENDING;
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}
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void PepperFlashBrowserHost::GetLocalDataRestrictions(
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ppapi::host::ReplyMessageContext reply_context,
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const GURL& document_url,
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const GURL& plugin_url) {
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DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
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PP_FlashLSORestrictions restrictions = PP_FLASHLSORESTRICTIONS_NONE;
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if (document_url.is_valid() && plugin_url.is_valid()) {
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// TODO(cef): Determine how to properly handle these permissions. In Chrome
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// they're handled via CookieSettings associated with a Profile.
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if (!IsReadingCookieAllowed(document_url, plugin_url))
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restrictions = PP_FLASHLSORESTRICTIONS_BLOCK;
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else if (IsCookieSessionOnly(plugin_url))
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restrictions = PP_FLASHLSORESTRICTIONS_IN_MEMORY;
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}
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SendReply(reply_context,
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PpapiPluginMsg_Flash_GetLocalDataRestrictionsReply(
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static_cast<int32_t>(restrictions)));
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}
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