642965c678
No-Typo-Check: Not related to this change. Bug: 161477208 Change-Id: I99e4780f6855b7045aa0cd5a49c13d2d0d51ed64
98 lines
3.5 KiB
C++
98 lines
3.5 KiB
C++
// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
|
|
// source code may only be used and distributed under the Widevine License
|
|
// Agreement.
|
|
//
|
|
// CdmIdentifier - Struct that holds all the information necessary to
|
|
// uniquely identify a CdmEngine instance in the
|
|
// WvContentDecryptionModule multiplexing layer.
|
|
|
|
#ifndef CDM_BASE_CDM_IDENTIFIER_H_
|
|
#define CDM_BASE_CDM_IDENTIFIER_H_
|
|
|
|
#include <string>
|
|
|
|
#include "log.h"
|
|
#include "wv_cdm_constants.h"
|
|
|
|
namespace wvcdm {
|
|
|
|
// CdmIdentifier contains all the information necessary to uniquely identify a
|
|
// distinct CdmEngine instance on Android. There should be a unique CdmEngine
|
|
// (and thus distinct storage space) for every combination of SPOID and origin.
|
|
struct CdmIdentifier {
|
|
// The Stable Per-Origin Identifier, or SPOID. May be blank on old, SPOID-less
|
|
// systems, in which case multiple apps with the same origin will share a
|
|
// CdmEngine and storage.
|
|
std::string spoid;
|
|
|
|
// The origin. May be blank if the app does not set an origin, which is
|
|
// the likely behavior of most non-web-browser apps.
|
|
std::string origin;
|
|
|
|
// The application package name provided by the application. This is used to
|
|
// provide a friendly name of the application package for the purposes of
|
|
// logging and metrics.
|
|
std::string app_package_name;
|
|
|
|
// The unique identifier guarantees that no two identifiers share the same
|
|
// CdmEngine instance. We're moving to a model where a plugin maps 1 to 1
|
|
// with a CdmEngine instance. This is a simple way to implement that.
|
|
uint32_t unique_id;
|
|
|
|
// Operating system user id of the application. Used to filter log messages.
|
|
// Defaults to UNKNOWN_UID.
|
|
uint32_t user_id;
|
|
|
|
// This method is needed to check to see if the identifier is equivalent
|
|
// to the default cdm. E.g. no spoid, origin or app package name. Use this
|
|
// comparison in lieu of the == operator when checking to see if the
|
|
// identifier would cause the default provisioned certificate to be used.
|
|
bool IsEquivalentToDefault() {
|
|
return spoid == EMPTY_SPOID && origin == EMPTY_ORIGIN &&
|
|
app_package_name == EMPTY_APP_PACKAGE_NAME;
|
|
}
|
|
};
|
|
|
|
// Provide comparison operators
|
|
inline bool operator==(const CdmIdentifier& lhs, const CdmIdentifier& rhs) {
|
|
return lhs.spoid == rhs.spoid && lhs.origin == rhs.origin &&
|
|
lhs.app_package_name == rhs.app_package_name &&
|
|
lhs.unique_id == rhs.unique_id && lhs.user_id == rhs.user_id;
|
|
}
|
|
|
|
inline bool operator!=(const CdmIdentifier& lhs, const CdmIdentifier& rhs) {
|
|
return !(lhs == rhs);
|
|
}
|
|
|
|
inline bool operator<(const CdmIdentifier& lhs, const CdmIdentifier& rhs) {
|
|
return (lhs.spoid < rhs.spoid) ||
|
|
((lhs.spoid == rhs.spoid) &&
|
|
(lhs.origin < rhs.origin ||
|
|
(lhs.origin == rhs.origin &&
|
|
(lhs.app_package_name < rhs.app_package_name ||
|
|
(lhs.app_package_name == rhs.app_package_name &&
|
|
(lhs.unique_id < rhs.unique_id ||
|
|
(lhs.unique_id == rhs.unique_id &&
|
|
lhs.user_id < rhs.user_id)))))));
|
|
}
|
|
|
|
inline bool operator>(const CdmIdentifier& lhs, const CdmIdentifier& rhs) {
|
|
return rhs < lhs;
|
|
}
|
|
|
|
inline bool operator<=(const CdmIdentifier& lhs, const CdmIdentifier& rhs) {
|
|
return !(lhs > rhs);
|
|
}
|
|
|
|
inline bool operator>=(const CdmIdentifier& lhs, const CdmIdentifier& rhs) {
|
|
return !(lhs < rhs);
|
|
}
|
|
|
|
// Provide default
|
|
static const CdmIdentifier kDefaultCdmIdentifier = {
|
|
EMPTY_SPOID, EMPTY_ORIGIN, EMPTY_APP_PACKAGE_NAME, 0, wvutil::UNKNOWN_UID};
|
|
|
|
} // namespace wvcdm
|
|
|
|
#endif // CDM_BASE_CDM_IDENTIFIER_H_
|