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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/search/most_visited_iframe_source.h"
#include <string_view>
#include "base/memory/ref_counted_memory.h"
#include "base/strings/string_util.h"
#include "build/build_config.h"
#include "chrome/browser/search/instant_service.h"
#include "chrome/common/url_constants.h"
#include "chrome/grit/new_tab_page_instant_resources.h"
#include "components/search/ntp_features.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/web_contents.h"
#include "ui/base/resource/resource_bundle.h"
#include "url/gurl.h"
namespace {
// Multi-iframe version, used by third party remote NTPs.
const char kTitleHTMLPath[] = "/title.html";
const char kTitleCSSPath[] = "/title.css";
const char kTitleJSPath[] = "/title.js";
} // namespace
MostVisitedIframeSource::MostVisitedIframeSource() = default;
MostVisitedIframeSource::~MostVisitedIframeSource() = default;
std::string MostVisitedIframeSource::GetSource() {
return chrome::kChromeSearchMostVisitedHost;
}
void MostVisitedIframeSource::StartDataRequest(
const GURL& url,
const content::WebContents::Getter& wc_getter,
content::URLDataSource::GotDataCallback callback) {
// TODO(crbug.com/40050262): Simplify usages of |path| since |url| is
// available.
const std::string path(url.path());
if (path == kTitleHTMLPath) {
SendResource(IDR_NEW_TAB_PAGE_INSTANT_MOST_VISITED_TITLE_HTML,
std::move(callback));
} else if (path == kTitleCSSPath) {
SendResource(IDR_NEW_TAB_PAGE_INSTANT_MOST_VISITED_TITLE_CSS,
std::move(callback));
} else if (path == kTitleJSPath) {
SendJSWithOrigin(IDR_NEW_TAB_PAGE_INSTANT_MOST_VISITED_TITLE_JS, wc_getter,
std::move(callback));
} else {
std::move(callback).Run(nullptr);
}
}
std::string MostVisitedIframeSource::GetMimeType(const GURL& url) {
std::string_view path = url.path_piece();
if (base::EndsWith(path, ".js", base::CompareCase::INSENSITIVE_ASCII))
return "application/javascript";
if (base::EndsWith(path, ".css", base::CompareCase::INSENSITIVE_ASCII))
return "text/css";
if (base::EndsWith(path, ".html", base::CompareCase::INSENSITIVE_ASCII))
return "text/html";
return std::string();
}
bool MostVisitedIframeSource::ShouldServeMimeTypeAsContentTypeHeader() {
return true;
}
bool MostVisitedIframeSource::AllowCaching() {
return false;
}
bool MostVisitedIframeSource::ShouldServiceRequest(
const GURL& url,
content::BrowserContext* browser_context,
int render_process_id) {
return InstantService::ShouldServiceRequest(url, browser_context,
render_process_id) &&
url.SchemeIs(chrome::kChromeSearchScheme) &&
url.host_piece() == GetSource() && ServesPath(url.path());
}
bool MostVisitedIframeSource::ShouldDenyXFrameOptions() {
return false;
}
bool MostVisitedIframeSource::ServesPath(const std::string& path) const {
return path == kTitleHTMLPath || path == kTitleCSSPath ||
path == kTitleJSPath;
}
void MostVisitedIframeSource::SendResource(
int resource_id,
content::URLDataSource::GotDataCallback callback) {
std::move(callback).Run(
ui::ResourceBundle::GetSharedInstance().LoadDataResourceBytes(
resource_id));
}
void MostVisitedIframeSource::SendJSWithOrigin(
int resource_id,
const content::WebContents::Getter& wc_getter,
content::URLDataSource::GotDataCallback callback) {
std::string origin;
if (!GetOrigin(wc_getter, &origin)) {
std::move(callback).Run(nullptr);
return;
}
std::string response =
ui::ResourceBundle::GetSharedInstance().LoadDataResourceString(
resource_id);
base::ReplaceFirstSubstringAfterOffset(&response, 0, "{{ORIGIN}}", origin);
std::move(callback).Run(
base::MakeRefCounted<base::RefCountedString>(std::move(response)));
}
bool MostVisitedIframeSource::GetOrigin(
const content::WebContents::Getter& wc_getter,
std::string* origin) const {
if (wc_getter.is_null())
return false;
content::WebContents* contents = wc_getter.Run();
if (!contents)
return false;
content::NavigationEntry* entry = contents->GetController().GetVisibleEntry();
if (!entry)
return false;
*origin = entry->GetURL().DeprecatedGetOriginAsURL().spec();
// Origin should not include a trailing slash. That is part of the path.
base::TrimString(*origin, "/", origin);
return true;
}
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