145 lines
4.7 KiB
C++
145 lines
4.7 KiB
C++
// Copyright (c) 2015 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "atom/browser/atom_resource_dispatcher_host_delegate.h"
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#include "atom/browser/atom_browser_context.h"
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#include "atom/browser/web_contents_permission_helper.h"
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#include "atom/browser/web_contents_preferences.h"
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#include "atom/common/platform_util.h"
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#include "base/strings/utf_string_conversions.h"
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#include "content/public/browser/browser_thread.h"
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#include "content/public/browser/download_manager.h"
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#include "content/public/browser/render_frame_host.h"
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#include "net/base/escape.h"
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#include "url/gurl.h"
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#if defined(ENABLE_PDF_VIEWER)
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#include "atom/common/atom_constants.h"
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#include "base/strings/stringprintf.h"
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#include "content/public/browser/stream_info.h"
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#include "net/url_request/url_request.h"
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#endif // defined(ENABLE_PDF_VIEWER)
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using content::BrowserThread;
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namespace atom {
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namespace {
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void OnOpenExternal(const GURL& escaped_url, bool allowed) {
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if (allowed)
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platform_util::OpenExternal(
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#if defined(OS_WIN)
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base::UTF8ToUTF16(escaped_url.spec()),
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#else
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escaped_url,
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#endif
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true);
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}
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void HandleExternalProtocolInUI(
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const GURL& url,
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const content::ResourceRequestInfo::WebContentsGetter& web_contents_getter,
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bool has_user_gesture) {
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content::WebContents* web_contents = web_contents_getter.Run();
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if (!web_contents)
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return;
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auto* permission_helper =
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WebContentsPermissionHelper::FromWebContents(web_contents);
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if (!permission_helper)
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return;
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GURL escaped_url(net::EscapeExternalHandlerValue(url.spec()));
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auto callback = base::Bind(&OnOpenExternal, escaped_url);
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permission_helper->RequestOpenExternalPermission(callback, has_user_gesture,
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url);
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}
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#if defined(ENABLE_PDF_VIEWER)
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void OnPdfResourceIntercepted(
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const GURL& original_url,
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int render_process_host_id,
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int render_frame_id,
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const content::ResourceRequestInfo::WebContentsGetter&
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web_contents_getter) {
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content::WebContents* web_contents = web_contents_getter.Run();
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if (!web_contents)
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return;
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auto* web_preferences = WebContentsPreferences::From(web_contents);
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if (!web_preferences || !web_preferences->IsEnabled(options::kPlugins)) {
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auto* browser_context = web_contents->GetBrowserContext();
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auto* download_manager =
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content::BrowserContext::GetDownloadManager(browser_context);
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download_manager->DownloadUrl(
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content::DownloadUrlParameters::CreateForWebContentsMainFrame(
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web_contents, original_url, NO_TRAFFIC_ANNOTATION_YET));
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return;
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}
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// The URL passes the original pdf resource url, that will be requested
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// by the webui page.
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// chrome://pdf-viewer/index.html?src=https://somepage/123.pdf
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content::NavigationController::LoadURLParams params(GURL(base::StringPrintf(
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"%sindex.html?%s=%s", kPdfViewerUIOrigin, kPdfPluginSrc,
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net::EscapeUrlEncodedData(original_url.spec(), false).c_str())));
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content::RenderFrameHost* frame_host =
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content::RenderFrameHost::FromID(render_process_host_id, render_frame_id);
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if (!frame_host) {
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return;
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}
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params.frame_tree_node_id = frame_host->GetFrameTreeNodeId();
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web_contents->GetController().LoadURLWithParams(params);
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}
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#endif // defined(ENABLE_PDF_VIEWER)
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} // namespace
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AtomResourceDispatcherHostDelegate::AtomResourceDispatcherHostDelegate() {}
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bool AtomResourceDispatcherHostDelegate::HandleExternalProtocol(
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const GURL& url,
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content::ResourceRequestInfo* info) {
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BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
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base::BindOnce(&HandleExternalProtocolInUI, url,
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info->GetWebContentsGetterForRequest(),
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info->HasUserGesture()));
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return true;
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}
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bool AtomResourceDispatcherHostDelegate::ShouldInterceptResourceAsStream(
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net::URLRequest* request,
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const std::string& mime_type,
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GURL* origin,
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std::string* payload) {
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#if defined(ENABLE_PDF_VIEWER)
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const content::ResourceRequestInfo* info =
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content::ResourceRequestInfo::ForRequest(request);
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int render_process_host_id;
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int render_frame_id;
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if (!info->GetAssociatedRenderFrame(&render_process_host_id,
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&render_frame_id)) {
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return false;
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}
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if (mime_type == "application/pdf") {
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*origin = GURL(kPdfViewerUIOrigin);
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content::BrowserThread::PostTask(
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BrowserThread::UI, FROM_HERE,
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base::Bind(&OnPdfResourceIntercepted, request->url(),
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render_process_host_id, render_frame_id,
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info->GetWebContentsGetterForRequest()));
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return true;
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}
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#endif // defined(ENABLE_PDF_VIEWER)
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return false;
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}
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} // namespace atom
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