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#include "acl.h"
#include <yt/yt/core/yson/pull_parser_deserialize.h>
#include <yt/yt/core/ytree/fluent.h>
#include <yt/yt/core/ytree/serialize.h>
namespace NYT::NSecurityClient {
using namespace NYTree;
using namespace NYson;
////////////////////////////////////////////////////////////////////////////////
TSerializableAccessControlEntry::TSerializableAccessControlEntry() = default;
TSerializableAccessControlEntry::TSerializableAccessControlEntry(
ESecurityAction action,
std::vector<TString> subjects,
EPermissionSet permissions,
EAceInheritanceMode inheritanceMode)
: Action(action)
, Subjects(std::move(subjects))
, Permissions(permissions)
, InheritanceMode(inheritanceMode)
{ }
bool operator == (const TSerializableAccessControlEntry& lhs, const TSerializableAccessControlEntry& rhs)
{
return
lhs.Action == rhs.Action &&
lhs.Subjects == rhs.Subjects &&
lhs.Permissions == rhs.Permissions &&
lhs.InheritanceMode == rhs.InheritanceMode &&
lhs.Columns == rhs.Columns &&
lhs.Vital == rhs.Vital;
}
bool operator != (const TSerializableAccessControlEntry& lhs, const TSerializableAccessControlEntry& rhs)
{
return !(lhs == rhs);
}
// NB(levysotsky): We don't use TYsonStruct here
// because we want to mirror the TAccessControlList structure,
// and a vector of TYsonStruct-s cannot be declared (as it has no move constructor).
void Serialize(const TSerializableAccessControlEntry& ace, NYson::IYsonConsumer* consumer)
{
BuildYsonFluently(consumer)
.BeginMap()
.Item("action").Value(ace.Action)
.Item("subjects").Value(ace.Subjects)
.Item("permissions").Value(ace.Permissions)
// TODO(max42): YT-16347.
// Do not serialize this field by default
.Item("inheritance_mode").Value(ace.InheritanceMode)
.OptionalItem("subject_tag_filter", ace.SubjectTagFilter)
.OptionalItem("columns", ace.Columns)
.OptionalItem("vital", ace.Vital)
.EndMap();
}
static void EnsureCorrect(const TSerializableAccessControlEntry& ace)
{
if (ace.Action == ESecurityAction::Undefined) {
THROW_ERROR_EXCEPTION("%Qlv action is not allowed",
ESecurityAction::Undefined);
}
// Currently, we allow empty permissions with columns. They seem to be no-op.
bool onlyReadOrEmpty = None(ace.Permissions & ~EPermission::Read);
if (ace.Columns && !onlyReadOrEmpty) {
THROW_ERROR_EXCEPTION("ACE specifying columns may contain only %Qlv permission; found %Qlv",
EPermission::Read,
ace.Permissions);
}
bool hasRegisterQueueConsumer = Any(ace.Permissions & EPermission::RegisterQueueConsumer);
bool onlyRegisterQueueConsumer = ace.Permissions == EPermission::RegisterQueueConsumer;
if (hasRegisterQueueConsumer && !ace.Vital) {
THROW_ERROR_EXCEPTION("Permission %Qlv requires vitality to be specified",
EPermission::RegisterQueueConsumer);
}
if (ace.Vital && !onlyRegisterQueueConsumer) {
THROW_ERROR_EXCEPTION("ACE specifying vitality must contain a single %Qlv permission; found %Qlv",
EPermission::RegisterQueueConsumer,
ace.Permissions);
}
}
void Deserialize(TSerializableAccessControlEntry& ace, NYTree::INodePtr node)
{
using NYTree::Deserialize;
auto mapNode = node->AsMap();
Deserialize(ace.Action, mapNode->GetChildOrThrow("action"));
Deserialize(ace.Subjects, mapNode->GetChildOrThrow("subjects"));
Deserialize(ace.Permissions, mapNode->GetChildOrThrow("permissions"));
if (auto inheritanceModeNode = mapNode->FindChild("inheritance_mode")) {
Deserialize(ace.InheritanceMode, inheritanceModeNode);
} else {
ace.InheritanceMode = EAceInheritanceMode::ObjectAndDescendants;
}
if (auto tagFilterNode = mapNode->FindChild("subject_tag_filter")) {
Deserialize(ace.SubjectTagFilter, tagFilterNode);
} else {
ace.SubjectTagFilter = {};
}
if (auto columnsNode = mapNode->FindChild("columns")) {
Deserialize(ace.Columns, columnsNode);
} else {
ace.Columns.reset();
}
if (auto vitalNode = mapNode->FindChild("vital")) {
Deserialize(ace.Vital, vitalNode);
} else {
ace.Vital.reset();
}
EnsureCorrect(ace);
}
void Deserialize(TSerializableAccessControlEntry& ace, NYson::TYsonPullParserCursor* cursor)
{
auto HasAction = false;
auto HasSubjects = false;
auto HasPermissions = false;
ace.InheritanceMode = EAceInheritanceMode::ObjectAndDescendants;
ace.SubjectTagFilter = {};
cursor->ParseMap([&] (TYsonPullParserCursor* cursor) {
auto key = cursor->GetCurrent().UncheckedAsString();
if (key == TStringBuf("action")) {
cursor->Next();
HasAction = true;
Deserialize(ace.Action, cursor);
} else if (key == TStringBuf("subjects")) {
cursor->Next();
HasSubjects = true;
Deserialize(ace.Subjects, cursor);
} else if (key == TStringBuf("permissions")) {
cursor->Next();
HasPermissions = true;
Deserialize(ace.Permissions, cursor);
} else if (key == TStringBuf("inheritance_mode")) {
cursor->Next();
Deserialize(ace.InheritanceMode, cursor);
} else if (key == TStringBuf("subject_tag_filter")) {
cursor->Next();
Deserialize(ace.SubjectTagFilter, cursor);
} else if (key == TStringBuf("columns")) {
cursor->Next();
Deserialize(ace.Columns, cursor);
} else if (key == TStringBuf("vital")) {
cursor->Next();
Deserialize(ace.Vital, cursor);
} else {
cursor->Next();
cursor->SkipComplexValue();
}
});
if (!(HasAction && HasSubjects && HasPermissions)) {
THROW_ERROR_EXCEPTION("Error parsing ACE: \"action\", \"subject\" and \"permissions\" fields are required");
}
EnsureCorrect(ace);
}
void TSerializableAccessControlEntry::Persist(const TStreamPersistenceContext& context)
{
using NYT::Persist;
Persist(context, Action);
Persist(context, Subjects);
Persist(context, Permissions);
Persist(context, InheritanceMode);
// COMPAT(vovamelnikov)
if (context.IsLoad() && context.GetVersion() < 301305) {
SubjectTagFilter = {};
} else {
Persist(context, SubjectTagFilter);
}
// NB: Columns and Vital are not persisted since this method is intended only for use in controller.
}
bool operator == (const TSerializableAccessControlList& lhs, const TSerializableAccessControlList& rhs)
{
return lhs.Entries == rhs.Entries;
}
bool operator != (const TSerializableAccessControlList& lhs, const TSerializableAccessControlList& rhs)
{
return !(lhs == rhs);
}
void Serialize(const TSerializableAccessControlList& acl, NYson::IYsonConsumer* consumer)
{
NYTree::Serialize(acl.Entries, consumer);
}
void Deserialize(TSerializableAccessControlList& acl, NYTree::INodePtr node)
{
NYTree::Deserialize(acl.Entries, node);
}
void TSerializableAccessControlList::Persist(const TStreamPersistenceContext& context)
{
NYT::Persist(context, Entries);
}
void Deserialize(TSerializableAccessControlList& acl, NYson::TYsonPullParserCursor* cursor)
{
Deserialize(acl.Entries, cursor);
}
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT::NSecurityClient
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