| // Copyright 2018 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 file. |
| |
| #include "content/browser/renderer_host/plugin_registry_impl.h" |
| |
| #include "base/bind.h" |
| #include "base/no_destructor.h" |
| #include "content/browser/plugin_service_impl.h" |
| #include "content/public/browser/content_browser_client.h" |
| #include "content/public/browser/plugin_service_filter.h" |
| #include "content/public/common/content_client.h" |
| |
| namespace content { |
| |
| namespace { |
| constexpr auto kPluginRefreshThreshold = base::TimeDelta::FromSeconds(3); |
| } // namespace |
| |
| PluginRegistryImpl::PluginRegistryImpl(ResourceContext* resource_context) |
| : resource_context_(resource_context) {} |
| |
| PluginRegistryImpl::~PluginRegistryImpl() {} |
| |
| void PluginRegistryImpl::Bind(blink::mojom::PluginRegistryRequest request) { |
| bindings_.AddBinding(this, std::move(request)); |
| } |
| |
| void PluginRegistryImpl::GetPlugins(bool refresh, |
| const url::Origin& main_frame_origin, |
| GetPluginsCallback callback) { |
| auto* plugin_service = PluginServiceImpl::GetInstance(); |
| |
| // Don't refresh if the specified threshold has not been passed. Note that |
| // this check is performed before off-loading to the file thread. The reason |
| // we do this is that some pages tend to request that the list of plugins be |
| // refreshed at an excessive rate. This instigates disk scanning, as the list |
| // is accumulated by doing multiple reads from disk. This effect is |
| // multiplied when we have several pages requesting this operation. |
| if (refresh) { |
| const base::TimeTicks now = base::TimeTicks::Now(); |
| if (now - last_plugin_refresh_time_ >= kPluginRefreshThreshold) { |
| // Only refresh if the threshold hasn't been exceeded yet. |
| plugin_service->RefreshPlugins(); |
| last_plugin_refresh_time_ = now; |
| } |
| } |
| |
| plugin_service->GetPlugins(base::BindOnce( |
| &PluginRegistryImpl::GetPluginsComplete, weak_factory_.GetWeakPtr(), |
| main_frame_origin, std::move(callback))); |
| } |
| |
| void PluginRegistryImpl::GetPluginsComplete( |
| const url::Origin& main_frame_origin, |
| GetPluginsCallback callback, |
| const std::vector<WebPluginInfo>& all_plugins) { |
| PluginServiceFilter* filter = PluginServiceImpl::GetInstance()->GetFilter(); |
| std::vector<blink::mojom::PluginInfoPtr> plugins; |
| base::flat_set<std::string> mime_handler_view_mime_types = |
| GetContentClient()->browser()->GetPluginMimeTypesWithExternalHandlers( |
| resource_context_); |
| |
| const int child_process_id = -1; |
| const int routing_id = MSG_ROUTING_NONE; |
| // In this loop, copy the WebPluginInfo (and do not use a reference) because |
| // the filter might mutate it. |
| for (WebPluginInfo plugin : all_plugins) { |
| // TODO(crbug.com/621724): Pass an url::Origin instead of a GURL. |
| if (!filter || |
| filter->IsPluginAvailable(child_process_id, routing_id, |
| resource_context_, main_frame_origin.GetURL(), |
| main_frame_origin, &plugin)) { |
| auto plugin_blink = blink::mojom::PluginInfo::New(); |
| plugin_blink->name = plugin.name; |
| plugin_blink->description = plugin.desc; |
| plugin_blink->filename = plugin.path.BaseName(); |
| plugin_blink->background_color = plugin.background_color; |
| plugin_blink->may_use_external_handler = false; |
| for (const auto& mime_type : plugin.mime_types) { |
| auto mime_type_blink = blink::mojom::PluginMimeType::New(); |
| mime_type_blink->mime_type = mime_type.mime_type; |
| mime_type_blink->description = mime_type.description; |
| mime_type_blink->file_extensions = mime_type.file_extensions; |
| plugin_blink->mime_types.push_back(std::move(mime_type_blink)); |
| if (!plugin_blink->may_use_external_handler) { |
| plugin_blink->may_use_external_handler = |
| base::Contains(mime_handler_view_mime_types, mime_type.mime_type); |
| } |
| } |
| plugins.push_back(std::move(plugin_blink)); |
| } |
| } |
| |
| std::move(callback).Run(std::move(plugins)); |
| } |
| |
| } // namespace content |