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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/common/url_schemes.h"
#include <string.h>
#include <iterator>
#include "base/no_destructor.h"
#include "base/strings/string_util.h"
#include "build/build_config.h"
#include "content/public/common/content_client.h"
#include "content/public/common/url_constants.h"
#include "url/url_util.h"
namespace content {
namespace {
const char* const kDefaultSavableSchemes[] = {
url::kHttpScheme,
url::kHttpsScheme,
url::kFileScheme,
url::kFileSystemScheme,
url::kFtpScheme,
kChromeDevToolsScheme,
kChromeUIScheme,
url::kDataScheme
};
// These lists are lazily initialized below and are leaked on shutdown to
// prevent any destructors from being called that will slow us down or cause
// problems.
std::vector<std::string>& GetMutableSavableSchemes() {
static base::NoDestructor<std::vector<std::string>> schemes;
return *schemes;
}
// This set contains serialized canonicalized origins as well as hostname
// patterns. The latter are canonicalized by component.
std::vector<std::string>& GetMutableSecureOriginsAndPatterns() {
static base::NoDestructor<std::vector<std::string>> origins;
return *origins;
}
std::vector<std::string>& GetMutableServiceWorkerSchemes() {
static base::NoDestructor<std::vector<std::string>> schemes;
return *schemes;
}
} // namespace
void RegisterContentSchemes(bool lock_schemes) {
ContentClient::Schemes schemes;
GetContentClient()->AddAdditionalSchemes(&schemes);
url::AddStandardScheme(kChromeDevToolsScheme, url::SCHEME_WITH_HOST);
url::AddStandardScheme(kChromeUIScheme, url::SCHEME_WITH_HOST);
url::AddStandardScheme(kGuestScheme, url::SCHEME_WITH_HOST);
url::AddStandardScheme(kChromeErrorScheme, url::SCHEME_WITH_HOST);
for (auto& scheme : schemes.standard_schemes)
url::AddStandardScheme(scheme.c_str(), url::SCHEME_WITH_HOST);
for (auto& scheme : schemes.referrer_schemes)
url::AddReferrerScheme(scheme.c_str(), url::SCHEME_WITH_HOST);
schemes.secure_schemes.push_back(kChromeUIScheme);
schemes.secure_schemes.push_back(kChromeErrorScheme);
for (auto& scheme : schemes.secure_schemes)
url::AddSecureScheme(scheme.c_str());
for (auto& scheme : schemes.local_schemes)
url::AddLocalScheme(scheme.c_str());
schemes.no_access_schemes.push_back(kChromeErrorScheme);
for (auto& scheme : schemes.no_access_schemes)
url::AddNoAccessScheme(scheme.c_str());
schemes.cors_enabled_schemes.push_back(kChromeUIScheme);
for (auto& scheme : schemes.cors_enabled_schemes)
url::AddCORSEnabledScheme(scheme.c_str());
// TODO(mkwst): Investigate whether chrome-error should be included in
// csp_bypassing_schemes.
for (auto& scheme : schemes.csp_bypassing_schemes)
url::AddCSPBypassingScheme(scheme.c_str());
for (auto& scheme : schemes.empty_document_schemes)
url::AddEmptyDocumentScheme(scheme.c_str());
#if defined(OS_ANDROID)
if (schemes.allow_non_standard_schemes_in_origins)
url::EnableNonStandardSchemesForAndroidWebView();
#endif
// Prevent future modification of the scheme lists. This is to prevent
// accidental creation of data races in the program. Add*Scheme aren't
// threadsafe so must be called when GURL isn't used on any other thread. This
// is really easy to mess up, so we say that all calls to Add*Scheme in Chrome
// must be inside this function.
if (lock_schemes)
url::LockSchemeRegistries();
// Combine the default savable schemes with the additional ones given.
GetMutableSavableSchemes().assign(std::begin(kDefaultSavableSchemes),
std::end(kDefaultSavableSchemes));
GetMutableSavableSchemes().insert(GetMutableSavableSchemes().end(),
schemes.savable_schemes.begin(),
schemes.savable_schemes.end());
GetMutableServiceWorkerSchemes() = std::move(schemes.service_worker_schemes);
GetMutableSecureOriginsAndPatterns() = std::move(schemes.secure_origins);
}
const std::vector<std::string>& GetSavableSchemes() {
return GetMutableSavableSchemes();
}
const std::vector<std::string>& GetSecureOriginsAndPatterns() {
return GetMutableSecureOriginsAndPatterns();
}
const std::vector<std::string>& GetServiceWorkerSchemes() {
return GetMutableServiceWorkerSchemes();
}
} // namespace content
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