electron/atom/browser/atom_resource_dispatcher_host_delegate.cc

106 lines
3.5 KiB
C++

// Copyright (c) 2015 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "atom/browser/atom_resource_dispatcher_host_delegate.h"
#include "atom/browser/atom_browser_context.h"
#include "atom/browser/web_contents_preferences.h"
#include "base/strings/utf_string_conversions.h"
#include "base/task/post_task.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/download_manager.h"
#include "content/public/browser/render_frame_host.h"
#include "electron/buildflags/buildflags.h"
#include "net/base/escape.h"
#include "url/gurl.h"
#if BUILDFLAG(ENABLE_PDF_VIEWER)
#include "atom/common/atom_constants.h"
#include "base/strings/stringprintf.h"
#include "content/public/browser/stream_info.h"
#include "net/url_request/url_request.h"
#endif // BUILDFLAG(ENABLE_PDF_VIEWER)
using content::BrowserThread;
namespace atom {
namespace {
#if BUILDFLAG(ENABLE_PDF_VIEWER)
void OnPdfResourceIntercepted(
const GURL& original_url,
int render_process_host_id,
int render_frame_id,
const content::ResourceRequestInfo::WebContentsGetter&
web_contents_getter) {
content::WebContents* web_contents = web_contents_getter.Run();
if (!web_contents)
return;
auto* web_preferences = WebContentsPreferences::From(web_contents);
if (!web_preferences || !web_preferences->IsEnabled(options::kPlugins)) {
auto* browser_context = web_contents->GetBrowserContext();
auto* download_manager =
content::BrowserContext::GetDownloadManager(browser_context);
download_manager->DownloadUrl(
content::DownloadUrlParameters::CreateForWebContentsMainFrame(
web_contents, original_url, NO_TRAFFIC_ANNOTATION_YET));
return;
}
// The URL passes the original pdf resource url, that will be requested
// by the webui page.
// chrome://pdf-viewer/index.html?src=https://somepage/123.pdf
content::NavigationController::LoadURLParams params(GURL(base::StringPrintf(
"%sindex.html?%s=%s", kPdfViewerUIOrigin, kPdfPluginSrc,
net::EscapeUrlEncodedData(original_url.spec(), false).c_str())));
content::RenderFrameHost* frame_host =
content::RenderFrameHost::FromID(render_process_host_id, render_frame_id);
if (!frame_host) {
return;
}
params.frame_tree_node_id = frame_host->GetFrameTreeNodeId();
web_contents->GetController().LoadURLWithParams(params);
}
#endif // BUILDFLAG(ENABLE_PDF_VIEWER)
} // namespace
AtomResourceDispatcherHostDelegate::AtomResourceDispatcherHostDelegate() {}
bool AtomResourceDispatcherHostDelegate::ShouldInterceptResourceAsStream(
net::URLRequest* request,
const std::string& mime_type,
GURL* origin,
std::string* payload) {
#if BUILDFLAG(ENABLE_PDF_VIEWER)
const content::ResourceRequestInfo* info =
content::ResourceRequestInfo::ForRequest(request);
int render_process_host_id;
int render_frame_id;
if (!info->GetAssociatedRenderFrame(&render_process_host_id,
&render_frame_id)) {
return false;
}
if (mime_type == "application/pdf") {
*origin = GURL(kPdfViewerUIOrigin);
base::PostTaskWithTraits(
FROM_HERE, {BrowserThread::UI},
base::Bind(&OnPdfResourceIntercepted, request->url(),
render_process_host_id, render_frame_id,
info->GetWebContentsGetterForRequest()));
return true;
}
#endif // BUILDFLAG(ENABLE_PDF_VIEWER)
return false;
}
} // namespace atom