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// Copyright 2014 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 "third_party/blink/renderer/modules/encryptedmedia/encrypted_media_utils.h"
#include "third_party/blink/renderer/platform/runtime_enabled_features.h"
namespace blink {
namespace {
const char kTemporary[] = "temporary";
const char kPersistentLicense[] = "persistent-license";
const char kPersistentUsageRecord[] = "persistent-usage-record";
} // namespace
// static
WebEncryptedMediaInitDataType EncryptedMediaUtils::ConvertToInitDataType(
const String& init_data_type) {
if (init_data_type == "cenc")
return WebEncryptedMediaInitDataType::kCenc;
if (init_data_type == "keyids")
return WebEncryptedMediaInitDataType::kKeyids;
if (init_data_type == "webm")
return WebEncryptedMediaInitDataType::kWebm;
// |initDataType| is not restricted in the idl, so anything is possible.
return WebEncryptedMediaInitDataType::kUnknown;
}
// static
String EncryptedMediaUtils::ConvertFromInitDataType(
WebEncryptedMediaInitDataType init_data_type) {
switch (init_data_type) {
case WebEncryptedMediaInitDataType::kCenc:
return "cenc";
case WebEncryptedMediaInitDataType::kKeyids:
return "keyids";
case WebEncryptedMediaInitDataType::kWebm:
return "webm";
case WebEncryptedMediaInitDataType::kUnknown:
// Chromium should not use Unknown, but we use it in Blink when the
// actual value has been blocked for non-same-origin or mixed content.
return String();
}
NOTREACHED();
return String();
}
// static
WebEncryptedMediaSessionType EncryptedMediaUtils::ConvertToSessionType(
const String& session_type) {
if (session_type == kTemporary)
return WebEncryptedMediaSessionType::kTemporary;
if (session_type == kPersistentLicense)
return WebEncryptedMediaSessionType::kPersistentLicense;
if (session_type == kPersistentUsageRecord &&
RuntimeEnabledFeatures::
EncryptedMediaPersistentUsageRecordSessionEnabled()) {
return WebEncryptedMediaSessionType::kPersistentUsageRecord;
}
// |sessionType| is not restricted in the idl, so anything is possible.
return WebEncryptedMediaSessionType::kUnknown;
}
// static
String EncryptedMediaUtils::ConvertFromSessionType(
WebEncryptedMediaSessionType session_type) {
switch (session_type) {
case WebEncryptedMediaSessionType::kTemporary:
return kTemporary;
case WebEncryptedMediaSessionType::kPersistentLicense:
return kPersistentLicense;
case WebEncryptedMediaSessionType::kPersistentUsageRecord:
if (RuntimeEnabledFeatures::
EncryptedMediaPersistentUsageRecordSessionEnabled()) {
return kPersistentUsageRecord;
}
FALLTHROUGH;
case WebEncryptedMediaSessionType::kUnknown:
// Unexpected session type from Chromium.
NOTREACHED();
return String();
}
NOTREACHED();
return String();
}
// static
String EncryptedMediaUtils::ConvertKeyStatusToString(
const WebEncryptedMediaKeyInformation::KeyStatus status) {
switch (status) {
case WebEncryptedMediaKeyInformation::KeyStatus::kUsable:
return "usable";
case WebEncryptedMediaKeyInformation::KeyStatus::kExpired:
return "expired";
case WebEncryptedMediaKeyInformation::KeyStatus::kReleased:
return "released";
case WebEncryptedMediaKeyInformation::KeyStatus::kOutputRestricted:
return "output-restricted";
case WebEncryptedMediaKeyInformation::KeyStatus::kOutputDownscaled:
return "output-downscaled";
case WebEncryptedMediaKeyInformation::KeyStatus::kStatusPending:
return "status-pending";
case WebEncryptedMediaKeyInformation::KeyStatus::kInternalError:
return "internal-error";
}
NOTREACHED();
return "internal-error";
}
// static
WebMediaKeySystemConfiguration::Requirement
EncryptedMediaUtils::ConvertToMediaKeysRequirement(const String& requirement) {
if (requirement == "required")
return WebMediaKeySystemConfiguration::Requirement::kRequired;
if (requirement == "optional")
return WebMediaKeySystemConfiguration::Requirement::kOptional;
if (requirement == "not-allowed")
return WebMediaKeySystemConfiguration::Requirement::kNotAllowed;
NOTREACHED();
return WebMediaKeySystemConfiguration::Requirement::kOptional;
}
// static
String EncryptedMediaUtils::ConvertMediaKeysRequirementToString(
WebMediaKeySystemConfiguration::Requirement requirement) {
switch (requirement) {
case WebMediaKeySystemConfiguration::Requirement::kRequired:
return "required";
case WebMediaKeySystemConfiguration::Requirement::kOptional:
return "optional";
case WebMediaKeySystemConfiguration::Requirement::kNotAllowed:
return "not-allowed";
}
NOTREACHED();
return "not-allowed";
}
} // namespace blink
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