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// Copyright 2015 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/public/common/origin_util.h"
#include <string>
#include "base/lazy_instance.h"
#include "base/macros.h"
#include "base/stl_util.h"
#include "base/strings/string_piece.h"
#include "content/public/common/content_client.h"
#include "content/public/common/url_constants.h"
#include "net/base/url_util.h"
#include "url/gurl.h"
#include "url/url_constants.h"
namespace content {
namespace {
class SchemeAndOriginWhitelist {
public:
SchemeAndOriginWhitelist() { Reset(); }
~SchemeAndOriginWhitelist() {}
void Reset() {
secure_schemes_.clear();
secure_origins_.clear();
service_worker_schemes_.clear();
GetContentClient()->AddSecureSchemesAndOrigins(&secure_schemes_,
&secure_origins_);
GetContentClient()->AddServiceWorkerSchemes(&service_worker_schemes_);
}
const std::set<std::string>& secure_schemes() const {
return secure_schemes_;
}
const std::set<GURL>& secure_origins() const { return secure_origins_; }
const std::set<std::string>& service_worker_schemes() const {
return service_worker_schemes_;
}
private:
std::set<std::string> secure_schemes_;
std::set<GURL> secure_origins_;
std::set<std::string> service_worker_schemes_;
DISALLOW_COPY_AND_ASSIGN(SchemeAndOriginWhitelist);
};
base::LazyInstance<SchemeAndOriginWhitelist>::Leaky g_trustworthy_whitelist =
LAZY_INSTANCE_INITIALIZER;
} // namespace
bool IsOriginSecure(const GURL& url) {
if (url.SchemeIsCryptographic() || url.SchemeIsFile())
return true;
if (url.SchemeIsFileSystem() && url.inner_url() &&
IsOriginSecure(*url.inner_url())) {
return true;
}
std::string hostname = url.HostNoBrackets();
if (net::IsLocalhost(hostname))
return true;
if (base::ContainsKey(g_trustworthy_whitelist.Get().secure_schemes(),
url.scheme()))
return true;
if (base::ContainsKey(g_trustworthy_whitelist.Get().secure_origins(),
url.GetOrigin())) {
return true;
}
return false;
}
bool OriginCanAccessServiceWorkers(const GURL& url) {
if (url.SchemeIsHTTPOrHTTPS() && IsOriginSecure(url))
return true;
if (base::ContainsKey(g_trustworthy_whitelist.Get().service_worker_schemes(),
url.scheme())) {
return true;
}
return false;
}
void ResetSchemesAndOriginsWhitelistForTesting() {
g_trustworthy_whitelist.Get().Reset();
}
bool HasSuborigin(const GURL& url) {
if (!url.is_valid())
return false;
if (url.scheme() != kHttpSuboriginScheme &&
url.scheme() != kHttpsSuboriginScheme) {
return false;
}
base::StringPiece host_piece = url.host_piece();
size_t first_period = host_piece.find('.');
// If the first period is the first position in the hostname, or there is no
// period at all, there is no suborigin serialized in the hostname.
if (first_period == 0 || first_period == base::StringPiece::npos)
return false;
// If there's nothing after the first dot, then there is no host for the
// physical origin, which is not a valid suborigin serialization.
if (first_period == (host_piece.size() - 1))
return false;
return true;
}
std::string SuboriginFromUrl(const GURL& url) {
if (!HasSuborigin(url))
return "";
std::string host = url.host();
size_t suborigin_end = host.find(".");
return (suborigin_end == std::string::npos) ? ""
: host.substr(0, suborigin_end);
}
GURL StripSuboriginFromUrl(const GURL& url) {
if (!HasSuborigin(url))
return url;
GURL::Replacements replacements;
if (url.scheme() == kHttpSuboriginScheme) {
replacements.SetSchemeStr(url::kHttpScheme);
} else {
DCHECK(url.scheme() == kHttpsSuboriginScheme);
replacements.SetSchemeStr(url::kHttpsScheme);
}
std::string host = url.host();
size_t suborigin_end = host.find(".");
std::string new_host(
(suborigin_end == std::string::npos)
? ""
: host.substr(suborigin_end + 1,
url.host().length() - suborigin_end - 1));
replacements.SetHostStr(new_host);
return url.ReplaceComponents(replacements);
}
} // namespace content
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