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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 <algorithm>
#include <string>
#include <vector>
#include "base/strings/string_util.h"
#include "content/common/savable_url_schemes.h"
#include "content/public/common/content_client.h"
#include "content/public/common/url_constants.h"
#include "url/url_util.h"
namespace {
} // namespace
namespace content {
void RegisterContentSchemes(bool lock_schemes) {
std::vector<url::SchemeWithType> additional_standard_schemes;
std::vector<url::SchemeWithType> additional_referrer_schemes;
std::vector<std::string> additional_savable_schemes;
GetContentClient()->AddAdditionalSchemes(&additional_standard_schemes,
&additional_referrer_schemes,
&additional_savable_schemes);
url::AddStandardScheme(kChromeDevToolsScheme, url::SCHEME_WITHOUT_PORT);
url::AddStandardScheme(kChromeUIScheme, url::SCHEME_WITHOUT_PORT);
url::AddStandardScheme(kGuestScheme, url::SCHEME_WITHOUT_PORT);
url::AddStandardScheme(kMetadataScheme, url::SCHEME_WITHOUT_AUTHORITY);
for (const url::SchemeWithType& scheme : additional_standard_schemes)
url::AddStandardScheme(scheme.scheme, scheme.type);
for (const url::SchemeWithType& scheme : additional_referrer_schemes)
url::AddReferrerScheme(scheme.scheme, scheme.type);
// 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();
// We rely on the above lock to protect this part from being invoked twice.
if (!additional_savable_schemes.empty()) {
const char* const* default_schemes = GetSavableSchemesInternal();
const char* const* default_schemes_end = NULL;
for (default_schemes_end = default_schemes; *default_schemes_end;
++default_schemes_end) {}
const int default_schemes_count = default_schemes_end - default_schemes;
int schemes = static_cast<int>(additional_savable_schemes.size());
// The array, and the copied schemes won't be freed, but will remain
// reachable.
char **savable_schemes = new char*[schemes + default_schemes_count + 1];
memcpy(savable_schemes,
default_schemes,
default_schemes_count * sizeof(default_schemes[0]));
for (int i = 0; i < schemes; ++i) {
savable_schemes[default_schemes_count + i] =
base::strdup(additional_savable_schemes[i].c_str());
}
savable_schemes[default_schemes_count + schemes] = 0;
SetSavableSchemes(savable_schemes);
}
}
} // namespace content
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