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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/browsing_topics/browsing_topics_document_host.h"
#include "base/functional/bind.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/document_service.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_client.h"
#include "third_party/blink/public/mojom/browsing_topics/browsing_topics.mojom.h"
namespace content {
BrowsingTopicsDocumentHost::BrowsingTopicsDocumentHost(
RenderFrameHost& render_frame_host,
mojo::PendingReceiver<blink::mojom::BrowsingTopicsDocumentService> receiver)
: DocumentService(render_frame_host, std::move(receiver)) {}
// static
void BrowsingTopicsDocumentHost::CreateMojoService(
RenderFrameHost* render_frame_host,
mojo::PendingReceiver<blink::mojom::BrowsingTopicsDocumentService>
receiver) {
CHECK(render_frame_host);
if (render_frame_host->GetLastCommittedOrigin().opaque()) {
mojo::ReportBadMessage(
"Unexpected BrowsingTopicsDocumentHost::CreateMojoService in an opaque "
"origin document.");
return;
}
if (render_frame_host->IsNestedWithinFencedFrame()) {
mojo::ReportBadMessage(
"Unexpected BrowsingTopicsDocumentHost::CreateMojoService in a fenced "
"frame.");
return;
}
if (render_frame_host->GetLifecycleState() ==
RenderFrameHost::LifecycleState::kPrerendering) {
mojo::ReportBadMessage(
"Unexpected BrowsingTopicsDocumentHost::CreateMojoService when the "
"page is being prerendered.");
return;
}
// The object is bound to the lifetime of |render_frame_host| and the mojo
// connection. See DocumentService for details.
new BrowsingTopicsDocumentHost(*render_frame_host, std::move(receiver));
}
void BrowsingTopicsDocumentHost::GetBrowsingTopics(
bool observe,
GetBrowsingTopicsCallback callback) {
// IPCs may race with navigation events, so:
// - Ignore non-active frames, e.g. a frame placed into bfcache, or a
// frame that has been detached (this could happen as a result of
// cross-process races when navigating).
if (!render_frame_host().IsActive() ||
// Ignore non-primary frames. Fenced frames and prerendered pages are
// covered in this condition but they should have already been checked in
// `CreateMojoService()`.
!render_frame_host().GetPage().IsPrimary()) {
std::move(callback).Run(
blink::mojom::GetBrowsingTopicsResult::NewErrorMessage(
"document.browsingTopics() is only allowed in the outermost page "
"and when the page is active."));
return;
}
// Skip if the RFH's `StoragePartition` isn't the `BrowserContext`'s default
// one. The desired way to process it is TBD.
if (render_frame_host().GetStoragePartition() !=
render_frame_host().GetBrowserContext()->GetDefaultStoragePartition()) {
std::move(callback).Run(
blink::mojom::GetBrowsingTopicsResult::NewBrowsingTopics(
std::vector<blink::mojom::EpochTopicPtr>()));
return;
}
std::vector<blink::mojom::EpochTopicPtr> topics;
GetContentClient()->browser()->HandleTopicsWebApi(
render_frame_host().GetLastCommittedOrigin(),
render_frame_host().GetMainFrame(),
browsing_topics::ApiCallerSource::kJavaScript,
/*get_topics=*/true, observe, topics);
std::move(callback).Run(
blink::mojom::GetBrowsingTopicsResult::NewBrowsingTopics(
std::move(topics)));
}
BrowsingTopicsDocumentHost::~BrowsingTopicsDocumentHost() = default;
} // namespace content
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