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electron/patches/chromium/frame_host_manager.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: deepak1556 <hop2deep@gmail.com>
Date: Mon, 3 Jun 2019 14:20:05 -0700
Subject: frame_host_manager.patch
Allows embedder to intercept site instances chosen by chromium
and respond with custom instance. Also allows for us to at-runtime
enable or disable this patch.
diff --git a/content/browser/browsing_instance.cc b/content/browser/browsing_instance.cc
index 1e6b4b91485ae9a528beed77b12f6532e5968c07..c4a9db033bb56d097c4ce84ecd195e7bf4d7afd4 100644
--- a/content/browser/browsing_instance.cc
+++ b/content/browser/browsing_instance.cc
@@ -83,6 +83,13 @@ scoped_refptr<SiteInstanceImpl> BrowsingInstance::GetSiteInstanceForURL(
return instance;
}
+scoped_refptr<SiteInstanceImpl> BrowsingInstance::CreateSiteInstanceForURL(
+ const GURL& url) {
+ scoped_refptr<SiteInstanceImpl> instance = new SiteInstanceImpl(this);
+ instance->SetSite(url);
+ return instance;
+}
+
void BrowsingInstance::GetSiteAndLockForURL(const GURL& url,
bool allow_default_instance,
GURL* site_url,
diff --git a/content/browser/browsing_instance.h b/content/browser/browsing_instance.h
index 906a1ee4ac58b0744a32153bbaafeac4322a60e4..c90f4aead36cbf3767dc5094728963c24798e204 100644
--- a/content/browser/browsing_instance.h
+++ b/content/browser/browsing_instance.h
@@ -136,6 +136,11 @@ class CONTENT_EXPORT BrowsingInstance final
const GURL& url,
bool allow_default_instance);
+ // Create a new SiteInstance for the given URL bound the current
+ // BrowsingInstance.
+ scoped_refptr<SiteInstanceImpl> CreateSiteInstanceForURL(
+ const GURL& url);
+
// Adds the given SiteInstance to our map, to ensure that we do not create
// another SiteInstance for the same site.
void RegisterSiteInstance(SiteInstanceImpl* site_instance);
diff --git a/content/browser/frame_host/navigation_request.cc b/content/browser/frame_host/navigation_request.cc
index 413050e4779fc471da1d2219a55f0dc8378174b4..93aeacdab1e365d7dce4c6eb1c3da5916a0d05aa 100644
--- a/content/browser/frame_host/navigation_request.cc
+++ b/content/browser/frame_host/navigation_request.cc
@@ -1214,6 +1214,24 @@ void NavigationRequest::BeginNavigation() {
TRACE_EVENT_ASYNC_STEP_INTO0("navigation", "NavigationRequest", this,
"ResponseStarted");
+ // In Electron, a new process is started for every navigation when node is
+ // integrated in the renderer. Since GetFrameHostForNavigation is called more
+ // than once per navigation, we want to return the same frame host once
+ // the response has started, otherwise if the frame host that started the response
+ // and the frame host that is available for commit don't match then request will
+ // be cancelled. We rely on the NavigationRequest::state_ to determine this
+ // factor
+ //
+ // bool has_response_started =
+ // (request->state() >= NavigationRequest::WILL_PROCESS_RESPONSE &&
+ // !speculative_render_frame_host_);
+ //
+ // Hence this call is necesary before the call to GetFrameHostForNavigation. Also
+ // the state_ here is anyway going to end up being READY_TO_COMMIT because of
+ // ReadyToCommitNavigation a few lines later, so will not affect normal chromium
+ // request cycle.
+ state_ = READY_TO_COMMIT;
+
// Select an appropriate RenderFrameHost.
render_frame_host_ =
frame_tree_node_->render_manager()->GetFrameHostForNavigation(this);
diff --git a/content/browser/frame_host/render_frame_host_manager.cc b/content/browser/frame_host/render_frame_host_manager.cc
index 240850ff8ae0a73c85e840e0753c7c07135aae7a..528a02609f02c1e4912f0a10d76d74b27e201b6f 100644
--- a/content/browser/frame_host/render_frame_host_manager.cc
+++ b/content/browser/frame_host/render_frame_host_manager.cc
@@ -2137,6 +2137,16 @@ bool RenderFrameHostManager::InitRenderView(
scoped_refptr<SiteInstance>
RenderFrameHostManager::GetSiteInstanceForNavigationRequest(
NavigationRequest* request) {
+ // Compute the SiteInstance that the navigation should use, which will be
+ // either the current SiteInstance or a new one.
+ //
+ // TODO(clamy): We should also consider as a candidate SiteInstance the
+ // speculative SiteInstance that was computed on redirects.
+ SiteInstanceImpl* candidate_site_instance =
+ speculative_render_frame_host_
+ ? speculative_render_frame_host_->GetSiteInstance()
+ : nullptr;
+
SiteInstance* current_site_instance = render_frame_host_->GetSiteInstance();
// All children of MHTML documents must be MHTML documents. They all live in
@@ -2156,10 +2166,60 @@ RenderFrameHostManager::GetSiteInstanceForNavigationRequest(
//
// TODO(clamy): We should also consider as a candidate SiteInstance the
// speculative SiteInstance that was computed on redirects.
- SiteInstanceImpl* candidate_site_instance =
- speculative_render_frame_host_
- ? speculative_render_frame_host_->GetSiteInstance()
- : nullptr;
+ if (!GetContentClient()->browser()->CanUseCustomSiteInstance() &&
+ frame_tree_node_->IsMainFrame()) {
+ BrowserContext* browser_context =
+ delegate_->GetControllerForRenderManager().GetBrowserContext();
+ bool has_navigation_started = request->state() != NavigationRequest::NOT_STARTED;
+ bool has_response_started =
+ (request->state() >= NavigationRequest::WILL_PROCESS_RESPONSE &&
+ !speculative_render_frame_host_);
+ // Gives user a chance to choose a custom site instance.
+ SiteInstance* affinity_site_instance = nullptr;
+ scoped_refptr<SiteInstance> overriden_site_instance;
+ bool should_register_site_instance = false;
+ ContentBrowserClient::SiteInstanceForNavigationType siteInstanceType =
+ GetContentClient()->browser()->ShouldOverrideSiteInstanceForNavigation(
+ current_frame_host(), speculative_frame_host(), browser_context,
+ request->common_params().url, has_navigation_started,
+ has_response_started, &affinity_site_instance);
+ switch (siteInstanceType) {
+ case ContentBrowserClient::SiteInstanceForNavigationType::
+ FORCE_CANDIDATE_OR_NEW:
+ overriden_site_instance =
+ candidate_site_instance
+ ? candidate_site_instance
+ : current_site_instance->CreateRelatedSiteInstance(
+ request->common_params().url);
+ should_register_site_instance = true;
+ break;
+ case ContentBrowserClient::SiteInstanceForNavigationType::FORCE_NEW:
+ overriden_site_instance = current_site_instance->CreateRelatedSiteInstance(
+ request->common_params().url);
+ should_register_site_instance = true;
+ break;
+ case ContentBrowserClient::SiteInstanceForNavigationType::FORCE_CURRENT:
+ overriden_site_instance = render_frame_host_->GetSiteInstance();
+ break;
+ case ContentBrowserClient::SiteInstanceForNavigationType::FORCE_AFFINITY:
+ DCHECK(affinity_site_instance);
+ overriden_site_instance =
+ scoped_refptr<SiteInstance>(affinity_site_instance);
+ break;
+ case ContentBrowserClient::SiteInstanceForNavigationType::ASK_CHROMIUM:
+ DCHECK(!affinity_site_instance);
+ break;
+ default:
+ break;
+ }
+ if (overriden_site_instance) {
+ if (should_register_site_instance) {
+ GetContentClient()->browser()->RegisterPendingSiteInstance(
+ render_frame_host_.get(), overriden_site_instance.get());
+ }
+ return overriden_site_instance;
+ }
+ }
scoped_refptr<SiteInstance> dest_site_instance = GetSiteInstanceForNavigation(
request->common_params().url, request->GetSourceSiteInstance(),
@@ -2169,6 +2229,9 @@ RenderFrameHostManager::GetSiteInstanceForNavigationRequest(
request->GetRestoreType() != RestoreType::NONE, request->is_view_source(),
request->WasServerRedirect());
+ GetContentClient()->browser()->RegisterPendingSiteInstance(
+ render_frame_host_.get(), dest_site_instance.get());
+
return dest_site_instance;
}
diff --git a/content/browser/site_instance_impl.cc b/content/browser/site_instance_impl.cc
index 6a0c85cad42da9e048fbbc7108f55368c81071c5..34b751d095fcc1e137bcb4ff44a059a3dd11b4a8 100644
--- a/content/browser/site_instance_impl.cc
+++ b/content/browser/site_instance_impl.cc
@@ -369,6 +369,10 @@ bool SiteInstanceImpl::HasRelatedSiteInstance(const GURL& url) {
return browsing_instance_->HasSiteInstance(url);
}
+scoped_refptr<SiteInstance> SiteInstanceImpl::CreateRelatedSiteInstance(const GURL& url) {
+ return browsing_instance_->CreateSiteInstanceForURL(url);
+}
+
scoped_refptr<SiteInstance> SiteInstanceImpl::GetRelatedSiteInstance(
const GURL& url) {
return browsing_instance_->GetSiteInstanceForURL(
diff --git a/content/browser/site_instance_impl.h b/content/browser/site_instance_impl.h
index 59edc1fe0c22e82225bd2a3d8059f386d97db127..6bc92bbb5604111ecdc6b78be025bb7e7ee5ecb5 100644
--- a/content/browser/site_instance_impl.h
+++ b/content/browser/site_instance_impl.h
@@ -84,6 +84,7 @@ class CONTENT_EXPORT SiteInstanceImpl final : public SiteInstance,
BrowserContext* GetBrowserContext() override;
const GURL& GetSiteURL() override;
scoped_refptr<SiteInstance> GetRelatedSiteInstance(const GURL& url) override;
+ scoped_refptr<SiteInstance> CreateRelatedSiteInstance(const GURL& url) override;
bool IsRelatedSiteInstance(const SiteInstance* instance) override;
size_t GetRelatedActiveContentsCount() override;
bool RequiresDedicatedProcess() override;
diff --git a/content/public/browser/content_browser_client.cc b/content/public/browser/content_browser_client.cc
index 76261e6b09094527327e068e183d3d3b2665467b..fbd1be0f69aabdda47315e54518c0567b6aec3b8 100644
--- a/content/public/browser/content_browser_client.cc
+++ b/content/public/browser/content_browser_client.cc
@@ -49,6 +49,21 @@
namespace content {
+bool ContentBrowserClient::CanUseCustomSiteInstance() {
+ return false;
+}
+
+ContentBrowserClient::SiteInstanceForNavigationType ContentBrowserClient::ShouldOverrideSiteInstanceForNavigation(
+ content::RenderFrameHost* current_rfh,
+ content::RenderFrameHost* speculative_rfh,
+ content::BrowserContext* browser_context,
+ const GURL& url,
+ bool has_navigation_started,
+ bool has_request_started,
+ content::SiteInstance** affinity_site_instance) const {
+ return SiteInstanceForNavigationType::ASK_CHROMIUM;
+}
+
std::unique_ptr<BrowserMainParts> ContentBrowserClient::CreateBrowserMainParts(
const MainFunctionParams& parameters) {
return nullptr;
diff --git a/content/public/browser/content_browser_client.h b/content/public/browser/content_browser_client.h
index 2196584c127c8a3f80bfe55aaff3187372c19b1e..b391bacc010ad973ae38e70cd56f33949ee0bd20 100644
--- a/content/public/browser/content_browser_client.h
+++ b/content/public/browser/content_browser_client.h
@@ -216,8 +216,45 @@ struct WebPreferences;
// the observer interfaces.)
class CONTENT_EXPORT ContentBrowserClient {
public:
+ // Identifies the type of site instance to use for a navigation.
+ enum SiteInstanceForNavigationType {
+ // Use either the candidate site instance or, if it doesn't exist
+ // a new, unrelated site instance for the navigation.
+ FORCE_CANDIDATE_OR_NEW = 0,
+
+ // Use the current site instance for the navigation.
+ FORCE_CURRENT,
+
+ // Use a new, unrelated site instance.
+ FORCE_NEW,
+
+ // Use the provided affinity site instance for the navigation.
+ FORCE_AFFINITY,
+
+ // Delegate the site instance creation to Chromium.
+ ASK_CHROMIUM
+ };
+
virtual ~ContentBrowserClient() {}
+ // Electron: Allows disabling the below ShouldOverride patch
+ virtual bool CanUseCustomSiteInstance();
+
+ // Electron: Allows overriding the SiteInstance when navigating.
+ virtual SiteInstanceForNavigationType ShouldOverrideSiteInstanceForNavigation(
+ content::RenderFrameHost* current_rfh,
+ content::RenderFrameHost* speculative_rfh,
+ content::BrowserContext* browser_context,
+ const GURL& url,
+ bool has_navigation_started,
+ bool has_request_started,
+ content::SiteInstance** affinity_site_instance) const;
+
+ // Electron: Registers a pending site instance during a navigation.
+ virtual void RegisterPendingSiteInstance(
+ content::RenderFrameHost* rfh,
+ content::SiteInstance* pending_site_instance) {}
+
// Allows the embedder to set any number of custom BrowserMainParts
// implementations for the browser startup code. See comments in
// browser_main_parts.h.
diff --git a/content/public/browser/site_instance.h b/content/public/browser/site_instance.h
index a718f53111bbaa0c248930a577f25b34e2d15494..5fafbed85e5549f0039da6414a40a653bbb72853 100644
--- a/content/public/browser/site_instance.h
+++ b/content/public/browser/site_instance.h
@@ -121,6 +121,11 @@ class CONTENT_EXPORT SiteInstance : public base::RefCounted<SiteInstance> {
// corresponds to a site URL with the host "example.com".
virtual const GURL& GetSiteURL() = 0;
+ // Create a SiteInstance for the given URL that shares the current
+ // BrowsingInstance.
+ virtual scoped_refptr<SiteInstance> CreateRelatedSiteInstance(
+ const GURL& url) = 0;
+
// Gets a SiteInstance for the given URL that shares the current
// BrowsingInstance, creating a new SiteInstance if necessary. This ensures
// that a BrowsingInstance only has one SiteInstance per site, so that pages
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