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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/push_messaging/push_messaging_utils.h"
#include "base/base64url.h"
#include "base/version_info/channel.h"
#include "components/push_messaging/push_messaging_constants.h"
#include "components/push_messaging/push_messaging_features.h"
#include "url/gurl.h"
namespace push_messaging {
std::string GetGcmEndpointForChannel(version_info::Channel channel) {
if (base::FeatureList::IsEnabled(
features::kPushMessagingGcmEndpointWebpushPath)) {
if (base::FeatureList::IsEnabled(
features::kPushMessagingGcmEndpointEnvironment)) {
if (channel != version_info::Channel::STABLE) {
return kPushMessagingStagingWebpushEndpoint;
}
}
return kPushMessagingWebpushEndpoint;
}
if (base::FeatureList::IsEnabled(
features::kPushMessagingGcmEndpointEnvironment)) {
if (channel != version_info::Channel::STABLE) {
return kPushMessagingStagingGcmEndpoint;
}
}
return kPushMessagingGcmEndpoint;
}
GURL CreateEndpoint(version_info::Channel channel,
const std::string& subscription_id) {
const GURL endpoint(GetGcmEndpointForChannel(channel) + subscription_id);
DCHECK(endpoint.is_valid());
return endpoint;
}
blink::mojom::PushSubscriptionOptionsPtr MakeOptions(
const std::string& sender_id) {
return blink::mojom::PushSubscriptionOptions::New(
/*user_visible_only=*/true,
std::vector<uint8_t>(sender_id.begin(), sender_id.end()));
}
bool IsVapidKey(const std::string& application_server_key) {
// VAPID keys are NIST P-256 public keys in uncompressed format (64 bytes),
// verified through its length and the 0x04 prefix.
return application_server_key.size() == 65 &&
application_server_key[0] == 0x04;
}
std::string NormalizeSenderInfo(const std::string& application_server_key) {
if (!IsVapidKey(application_server_key)) {
return application_server_key;
}
std::string encoded_application_server_key;
base::Base64UrlEncode(application_server_key,
base::Base64UrlEncodePolicy::OMIT_PADDING,
&encoded_application_server_key);
return encoded_application_server_key;
}
} // namespace push_messaging
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