Status AuthzManagerExternalStateMongod::getStoredAuthorizationVersion(int* outVersion) {
{
Client::GodScope gs;
Client::ReadContext ctx(AuthorizationManager::versionCollectionNamespace.ns());
BSONObj versionDoc;
if (Helpers::findOne(AuthorizationManager::versionCollectionNamespace.ns(),
BSON("_id" << 1),
versionDoc)) {
BSONElement versionElement = versionDoc["currentVersion"];
if (versionElement.isNumber()) {
*outVersion = versionElement.numberInt();
return Status::OK();
}
else if (versionElement.eoo()) {
return Status(ErrorCodes::NoSuchKey, "No currentVersion field in version document.");
}
else {
return Status(ErrorCodes::TypeMismatch, mongoutils::str::stream() <<
"Bad (non-numeric) type " << versionElement.type() <<
"for currentVersion field in version document");
}
}
}
if (hasAnyPrivilegeDocuments()) {
*outVersion = 1;
}
else {
*outVersion = 2;
}
return Status::OK();
}
Status AuthzManagerExternalStateLocal::getStoredAuthorizationVersion(int* outVersion) {
BSONObj versionDoc;
Status status = findOne(AuthorizationManager::versionCollectionNamespace,
AuthorizationManager::versionDocumentQuery,
&versionDoc);
if (status.isOK()) {
BSONElement versionElement = versionDoc[AuthorizationManager::schemaVersionFieldName];
if (versionElement.isNumber()) {
*outVersion = versionElement.numberInt();
return Status::OK();
}
else if (versionElement.eoo()) {
return Status(ErrorCodes::NoSuchKey, mongoutils::str::stream() <<
"No " << AuthorizationManager::schemaVersionFieldName <<
" field in version document.");
}
else {
return Status(ErrorCodes::TypeMismatch, mongoutils::str::stream() <<
"Bad (non-numeric) type " << versionElement.type() <<
"for " << AuthorizationManager::schemaVersionFieldName <<
" field in version document");
}
}
else if (status == ErrorCodes::NoMatchingDocument) {
if (hasAnyPrivilegeDocuments()) {
*outVersion = AuthorizationManager::schemaVersion24;
}
else {
*outVersion = AuthorizationManager::schemaVersion26Final;
}
return Status::OK();
}
else {
return status;
}
}
