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// 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 file.
#include "apps/shell/browser/shell_content_browser_client.h"
#include "apps/shell/browser/shell_browser_context.h"
#include "apps/shell/browser/shell_browser_main_parts.h"
#include "apps/shell/browser/shell_extension_system.h"
#include "base/command_line.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/site_instance.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/url_constants.h"
#include "content/shell/browser/shell_browser_context.h"
#include "extensions/browser/extension_message_filter.h"
#include "extensions/browser/extension_protocols.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/browser/info_map.h"
#include "extensions/browser/process_map.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension.h"
#include "extensions/common/switches.h"
#include "url/gurl.h"
using content::BrowserThread;
using extensions::ExtensionRegistry;
namespace apps {
namespace {
ShellContentBrowserClient* g_instance = NULL;
} // namespace
ShellContentBrowserClient::ShellContentBrowserClient(
ShellBrowserMainDelegate* browser_main_delegate)
: browser_main_parts_(NULL), browser_main_delegate_(browser_main_delegate) {
DCHECK(!g_instance);
g_instance = this;
}
ShellContentBrowserClient::~ShellContentBrowserClient() { g_instance = NULL; }
// static
ShellContentBrowserClient* ShellContentBrowserClient::Get() {
return g_instance;
}
content::BrowserContext* ShellContentBrowserClient::GetBrowserContext() {
return browser_main_parts_->browser_context();
}
content::BrowserMainParts* ShellContentBrowserClient::CreateBrowserMainParts(
const content::MainFunctionParams& parameters) {
browser_main_parts_ =
new ShellBrowserMainParts(parameters, browser_main_delegate_);
return browser_main_parts_;
}
void ShellContentBrowserClient::RenderProcessWillLaunch(
content::RenderProcessHost* host) {
int render_process_id = host->GetID();
host->AddFilter(new extensions::ExtensionMessageFilter(
render_process_id, browser_main_parts_->browser_context()));
}
bool ShellContentBrowserClient::ShouldUseProcessPerSite(
content::BrowserContext* browser_context,
const GURL& effective_url) {
// This ensures that all render views created for a single app will use the
// same render process (see content::SiteInstance::GetProcess). Otherwise the
// default behavior of ContentBrowserClient will lead to separate render
// processes for the background page and each app window view.
return true;
}
net::URLRequestContextGetter* ShellContentBrowserClient::CreateRequestContext(
content::BrowserContext* content_browser_context,
content::ProtocolHandlerMap* protocol_handlers,
content::ProtocolHandlerScopedVector protocol_interceptors) {
// Handle only chrome-extension:// requests. app_shell does not support
// chrome-extension-resource:// requests (it does not store shared extension
// data in its installation directory).
extensions::InfoMap* extension_info_map =
browser_main_parts_->extension_system()->info_map();
(*protocol_handlers)[extensions::kExtensionScheme] =
linked_ptr<net::URLRequestJobFactory::ProtocolHandler>(
extensions::CreateExtensionProtocolHandler(false /* is_incognito */,
extension_info_map));
// Let content::ShellBrowserContext handle the rest of the setup.
return browser_main_parts_->browser_context()->CreateRequestContext(
protocol_handlers, protocol_interceptors.Pass());
}
bool ShellContentBrowserClient::IsHandledURL(const GURL& url) {
if (!url.is_valid())
return false;
// Keep in sync with ProtocolHandlers added in CreateRequestContext() and in
// content::ShellURLRequestContextGetter::GetURLRequestContext().
static const char* const kProtocolList[] = {
content::kBlobScheme,
content::kChromeDevToolsScheme,
content::kChromeUIScheme,
content::kDataScheme,
content::kFileScheme,
content::kFileSystemScheme,
extensions::kExtensionScheme,
extensions::kExtensionResourceScheme,
};
for (size_t i = 0; i < arraysize(kProtocolList); ++i) {
if (url.scheme() == kProtocolList[i])
return true;
}
return false;
}
void ShellContentBrowserClient::SiteInstanceGotProcess(
content::SiteInstance* site_instance) {
// If this isn't an extension renderer there's nothing to do.
const extensions::Extension* extension = GetExtension(site_instance);
if (!extension)
return;
extensions::ProcessMap::Get(browser_main_parts_->browser_context())
->Insert(extension->id(),
site_instance->GetProcess()->GetID(),
site_instance->GetId());
BrowserThread::PostTask(
BrowserThread::IO,
FROM_HERE,
base::Bind(&extensions::InfoMap::RegisterExtensionProcess,
browser_main_parts_->extension_system()->info_map(),
extension->id(),
site_instance->GetProcess()->GetID(),
site_instance->GetId()));
}
void ShellContentBrowserClient::SiteInstanceDeleting(
content::SiteInstance* site_instance) {
// If this isn't an extension renderer there's nothing to do.
const extensions::Extension* extension = GetExtension(site_instance);
if (!extension)
return;
extensions::ProcessMap::Get(browser_main_parts_->browser_context())
->Remove(extension->id(),
site_instance->GetProcess()->GetID(),
site_instance->GetId());
BrowserThread::PostTask(
BrowserThread::IO,
FROM_HERE,
base::Bind(&extensions::InfoMap::UnregisterExtensionProcess,
browser_main_parts_->extension_system()->info_map(),
extension->id(),
site_instance->GetProcess()->GetID(),
site_instance->GetId()));
}
void ShellContentBrowserClient::AppendExtraCommandLineSwitches(
CommandLine* command_line, int child_process_id) {
std::string process_type =
command_line->GetSwitchValueASCII(switches::kProcessType);
if (process_type == switches::kRendererProcess) {
// TODO(jamescook): Should we check here if the process is in the extension
// service process map, or can we assume all renderers are extension
// renderers?
command_line->AppendSwitch(extensions::switches::kExtensionProcess);
}
}
void ShellContentBrowserClient::GetAdditionalAllowedSchemesForFileSystem(
std::vector<std::string>* additional_allowed_schemes) {
ContentBrowserClient::GetAdditionalAllowedSchemesForFileSystem(
additional_allowed_schemes);
additional_allowed_schemes->push_back(extensions::kExtensionScheme);
}
const extensions::Extension* ShellContentBrowserClient::GetExtension(
content::SiteInstance* site_instance) {
ExtensionRegistry* registry =
ExtensionRegistry::Get(site_instance->GetBrowserContext());
return registry->enabled_extensions().GetExtensionOrAppByURL(
site_instance->GetSiteURL());
}
} // namespace apps
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