mirror of https://github.com/electron/electron
133 lines
4.7 KiB
C++
133 lines
4.7 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE-CHROMIUM file.
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#include "shell/browser/ui/devtools_ui.h"
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#include <memory>
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#include <string>
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#include <utility>
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#include "base/memory/ref_counted_memory.h"
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#include "base/strings/strcat.h"
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#include "base/strings/string_util.h"
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#include "base/strings/stringprintf.h"
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#include "chrome/common/webui_url_constants.h"
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#include "content/public/browser/devtools_frontend_host.h"
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#include "content/public/browser/url_data_source.h"
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#include "content/public/browser/web_contents.h"
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#include "content/public/browser/web_ui.h"
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namespace electron {
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namespace {
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std::string PathWithoutParams(const std::string& path) {
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return GURL(base::StrCat({content::kChromeDevToolsScheme,
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url::kStandardSchemeSeparator,
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chrome::kChromeUIDevToolsHost}))
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.Resolve(path)
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.path()
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.substr(1);
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}
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std::string GetMimeTypeForUrl(const GURL& url) {
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std::string filename = url.ExtractFileName();
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if (base::EndsWith(filename, ".html", base::CompareCase::INSENSITIVE_ASCII)) {
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return "text/html";
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} else if (base::EndsWith(filename, ".css",
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base::CompareCase::INSENSITIVE_ASCII)) {
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return "text/css";
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} else if (base::EndsWith(filename, ".js",
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base::CompareCase::INSENSITIVE_ASCII) ||
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base::EndsWith(filename, ".mjs",
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base::CompareCase::INSENSITIVE_ASCII)) {
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return "application/javascript";
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} else if (base::EndsWith(filename, ".png",
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base::CompareCase::INSENSITIVE_ASCII)) {
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return "image/png";
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} else if (base::EndsWith(filename, ".map",
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base::CompareCase::INSENSITIVE_ASCII)) {
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return "application/json";
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} else if (base::EndsWith(filename, ".ts",
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base::CompareCase::INSENSITIVE_ASCII)) {
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return "application/x-typescript";
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} else if (base::EndsWith(filename, ".gif",
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base::CompareCase::INSENSITIVE_ASCII)) {
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return "image/gif";
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} else if (base::EndsWith(filename, ".svg",
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base::CompareCase::INSENSITIVE_ASCII)) {
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return "image/svg+xml";
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} else if (base::EndsWith(filename, ".manifest",
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base::CompareCase::INSENSITIVE_ASCII)) {
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return "text/cache-manifest";
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}
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return "text/html";
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}
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class BundledDataSource : public content::URLDataSource {
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public:
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BundledDataSource() = default;
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~BundledDataSource() override = default;
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// disable copy
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BundledDataSource(const BundledDataSource&) = delete;
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BundledDataSource& operator=(const BundledDataSource&) = delete;
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// content::URLDataSource implementation.
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std::string GetSource() override { return chrome::kChromeUIDevToolsHost; }
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void StartDataRequest(const GURL& url,
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const content::WebContents::Getter& wc_getter,
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GotDataCallback callback) override {
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const std::string path = content::URLDataSource::URLToRequestPath(url);
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// Serve request from local bundle.
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std::string bundled_path_prefix(chrome::kChromeUIDevToolsBundledPath);
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bundled_path_prefix += "/";
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if (base::StartsWith(path, bundled_path_prefix,
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base::CompareCase::INSENSITIVE_ASCII)) {
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StartBundledDataRequest(path.substr(bundled_path_prefix.length()),
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std::move(callback));
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return;
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}
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// We do not handle remote and custom requests.
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std::move(callback).Run(nullptr);
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}
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std::string GetMimeType(const GURL& url) override {
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return GetMimeTypeForUrl(url);
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}
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bool ShouldAddContentSecurityPolicy() override { return false; }
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bool ShouldDenyXFrameOptions() override { return false; }
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bool ShouldServeMimeTypeAsContentTypeHeader() override { return true; }
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void StartBundledDataRequest(const std::string& path,
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GotDataCallback callback) {
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std::string filename = PathWithoutParams(path);
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scoped_refptr<base::RefCountedMemory> bytes =
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content::DevToolsFrontendHost::GetFrontendResourceBytes(filename);
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DLOG_IF(WARNING, !bytes)
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<< "Unable to find dev tool resource: " << filename
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<< ". If you compiled with debug_devtools=1, try running with "
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"--debug-devtools.";
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std::move(callback).Run(bytes);
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}
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};
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} // namespace
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DevToolsUI::DevToolsUI(content::BrowserContext* browser_context,
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content::WebUI* web_ui)
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: WebUIController(web_ui) {
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web_ui->SetBindings(0);
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content::URLDataSource::Add(browser_context,
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std::make_unique<BundledDataSource>());
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}
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} // namespace electron
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