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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/browser/guest_view/web_view/web_view_renderer_state.h"
#include "base/containers/contains.h"
#include "content/public/browser/browser_thread.h"
using content::BrowserThread;
namespace extensions {
WebViewRendererState::WebViewInfo::WebViewInfo() = default;
WebViewRendererState::WebViewInfo::WebViewInfo(const WebViewInfo& other) =
default;
WebViewRendererState::WebViewInfo::~WebViewInfo() = default;
// static
WebViewRendererState* WebViewRendererState::GetInstance() {
return base::Singleton<WebViewRendererState>::get();
}
WebViewRendererState::WebViewRendererState() = default;
WebViewRendererState::~WebViewRendererState() = default;
bool WebViewRendererState::IsGuest(int render_process_id) const {
base::AutoLock auto_lock(web_view_partition_id_map_lock_);
return base::Contains(web_view_partition_id_map_, render_process_id);
}
void WebViewRendererState::AddGuest(int guest_process_id,
int guest_routing_id,
const WebViewInfo& web_view_info) {
base::AutoLock auto_lock(web_view_info_map_lock_);
base::AutoLock auto_lock2(web_view_partition_id_map_lock_);
GlobalRenderFrameHostId global_routing_id(guest_process_id, guest_routing_id);
bool updating =
web_view_info_map_.find(global_routing_id) != web_view_info_map_.end();
web_view_info_map_[global_routing_id] = web_view_info;
if (updating) {
return;
}
auto iter = web_view_partition_id_map_.find(guest_process_id);
if (iter != web_view_partition_id_map_.end()) {
++iter->second.web_view_frame_count;
return;
}
WebViewPartitionInfo partition_info(1, web_view_info.partition_id);
web_view_partition_id_map_[guest_process_id] = partition_info;
}
void WebViewRendererState::RemoveGuest(int guest_process_id,
int guest_routing_id) {
base::AutoLock auto_lock(web_view_info_map_lock_);
base::AutoLock auto_lock2(web_view_partition_id_map_lock_);
GlobalRenderFrameHostId global_routing_id(guest_process_id, guest_routing_id);
// It's possible that we might've removed this particular frame already; in
// this case, ensure that the refcount in web_view_partition_id_map_ isn't
// double-decremented. In particular, this can happen when a <webview>'s
// process is terminated and then reloaded.
if (web_view_info_map_.erase(global_routing_id) == 0) {
return;
}
auto iter = web_view_partition_id_map_.find(guest_process_id);
if (iter != web_view_partition_id_map_.end() &&
iter->second.web_view_frame_count > 1) {
--iter->second.web_view_frame_count;
return;
}
web_view_partition_id_map_.erase(guest_process_id);
}
bool WebViewRendererState::GetInfo(int guest_process_id,
int guest_routing_id,
WebViewInfo* web_view_info) const {
base::AutoLock auto_lock(web_view_info_map_lock_);
GlobalRenderFrameHostId global_routing_id(guest_process_id, guest_routing_id);
auto iter = web_view_info_map_.find(global_routing_id);
if (iter != web_view_info_map_.end()) {
*web_view_info = iter->second;
return true;
}
return false;
}
bool WebViewRendererState::GetOwnerInfo(int guest_process_id,
int* owner_process_id,
std::string* owner_host) const {
base::AutoLock auto_lock(web_view_info_map_lock_);
// TODO(fsamuel): Store per-process info in WebViewPartitionInfo instead of in
// WebViewInfo.
for (const auto& info : web_view_info_map_) {
if (info.first.child_id == guest_process_id) {
if (owner_process_id) {
*owner_process_id = info.second.embedder_process_id.value();
}
if (owner_host) {
*owner_host = info.second.owner_host;
}
return true;
}
}
return false;
}
bool WebViewRendererState::GetPartitionID(int guest_process_id,
std::string* partition_id) const {
base::AutoLock auto_lock(web_view_partition_id_map_lock_);
auto iter = web_view_partition_id_map_.find(guest_process_id);
if (iter != web_view_partition_id_map_.end()){
*partition_id = iter->second.partition_id;
return true;
}
return false;
}
void WebViewRendererState::AddContentScriptIDs(
int embedder_process_id,
int view_instance_id,
const std::set<std::string>& script_ids) {
base::AutoLock auto_lock(web_view_info_map_lock_);
for (auto& render_id_info : web_view_info_map_) {
WebViewInfo& info = render_id_info.second;
if (info.embedder_process_id.value() == embedder_process_id &&
info.instance_id == view_instance_id) {
info.content_script_ids.insert(script_ids.begin(), script_ids.end());
// Note that it's important not to return early here, as there could be
// multiple entries per <webview> tag with site-isolated <webview> (e.g.
// due to OOPIFs inside <webview>).
}
}
}
void WebViewRendererState::RemoveContentScriptIDs(
int embedder_process_id,
int view_instance_id,
const std::set<std::string>& script_ids) {
base::AutoLock auto_lock(web_view_info_map_lock_);
for (auto& render_id_info : web_view_info_map_) {
WebViewInfo& info = render_id_info.second;
if (info.embedder_process_id.value() == embedder_process_id &&
info.instance_id == view_instance_id) {
for (const std::string& id : script_ids)
info.content_script_ids.erase(id);
// Note that it's important not to return early here, as there could be
// multiple entries per <webview> tag with site-isolated <webview> (e.g.
// due to OOPIFs inside <webview>).
}
}
}
} // namespace extensions
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