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// Copyright (c) 2012 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 "chrome/browser/extensions/api/streams_private/streams_private_api.h"
#include <utility>
#include "chrome/browser/extensions/extension_tab_util.h"
#include "chrome/browser/prefetch/no_state_prefetch/chrome_no_state_prefetch_contents_delegate.h"
#include "components/no_state_prefetch/browser/no_state_prefetch_contents.h"
#include "components/sessions/core/session_id.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/web_contents.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/browser/guest_view/mime_handler_view/mime_handler_stream_manager.h"
#include "extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.h"
#include "extensions/common/manifest_handlers/mime_types_handler.h"
namespace extensions {
void StreamsPrivateAPI::SendExecuteMimeTypeHandlerEvent(
const std::string& extension_id,
const std::string& view_id,
bool embedded,
int frame_tree_node_id,
int render_process_id,
int render_frame_id,
blink::mojom::TransferrableURLLoaderPtr transferrable_loader,
const GURL& original_url) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
content::WebContents* web_contents = nullptr;
if (frame_tree_node_id != content::RenderFrameHost::kNoFrameTreeNodeId) {
web_contents =
content::WebContents::FromFrameTreeNodeId(frame_tree_node_id);
} else {
web_contents = content::WebContents::FromRenderFrameHost(
content::RenderFrameHost::FromID(render_process_id, render_frame_id));
}
if (!web_contents)
return;
// If the request was for NoStatePrefetch, abort the prefetcher and do not
// continue. This is because plugins cancel NoStatePrefetch, see
// http://crbug.com/343590.
prerender::NoStatePrefetchContents* no_state_prefetch_contents =
prerender::ChromeNoStatePrefetchContentsDelegate::FromWebContents(
web_contents);
if (no_state_prefetch_contents) {
no_state_prefetch_contents->Destroy(prerender::FINAL_STATUS_DOWNLOAD);
return;
}
auto* browser_context = web_contents->GetBrowserContext();
const Extension* extension = ExtensionRegistry::Get(browser_context)
->enabled_extensions()
.GetByID(extension_id);
if (!extension)
return;
MimeTypesHandler* handler = MimeTypesHandler::GetHandler(extension);
if (!handler->HasPlugin())
return;
// If the mime handler uses MimeHandlerViewGuest, the MimeHandlerViewGuest
// will take ownership of the stream.
GURL handler_url(Extension::GetBaseURLFromExtensionId(extension_id).spec() +
handler->handler_url());
// If this is an inner contents, then (a) it's a guest view and doesn't have a
// tab id anyway, or (b) it's a portal. In the portal case, providing a
// distinct tab id breaks the pdf viewer / extension APIs. For now we just
// indicate that a portal contents has no tab id. Unfortunately, this will
// still be broken in subtle ways once the portal is activated (e.g. some
// forms of zooming won't work).
// TODO(1042323): Present a coherent representation of a tab id for portal
// contents.
int tab_id = web_contents->GetOuterWebContents()
? SessionID::InvalidValue().id()
: ExtensionTabUtil::GetTabId(web_contents);
std::unique_ptr<StreamContainer> stream_container(
new StreamContainer(tab_id, embedded, handler_url, extension_id,
std::move(transferrable_loader), original_url));
MimeHandlerStreamManager::Get(browser_context)
->AddStream(view_id, std::move(stream_container), frame_tree_node_id,
render_process_id, render_frame_id);
}
} // namespace extensions
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