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/**
* Copyright (C) 2012 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "mongo/db/auth/auth_index_d.h"
#include "mongo/base/init.h"
#include "mongo/db/auth/authorization_manager.h"
#include "mongo/db/client.h"
#include "mongo/db/dbhelpers.h"
#include "mongo/db/index_update.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/namespace_details.h"
#include "mongo/util/assert_util.h"
#include "mongo/util/log.h"
namespace mongo {
namespace authindex {
namespace {
BSONObj v0SystemUsersKeyPattern;
BSONObj v1SystemUsersKeyPattern;
BSONObj v2SystemUsersKeyPattern;
std::string v2SystemUsersIndexName;
MONGO_INITIALIZER(AuthIndexKeyPatterns)(InitializerContext*) {
v0SystemUsersKeyPattern = BSON(AuthorizationManager::V1_USER_NAME_FIELD_NAME << 1);
v1SystemUsersKeyPattern = BSON(AuthorizationManager::V1_USER_NAME_FIELD_NAME << 1 <<
AuthorizationManager::V1_USER_SOURCE_FIELD_NAME << 1);
v2SystemUsersKeyPattern = BSON(AuthorizationManager::USER_NAME_FIELD_NAME << 1 <<
AuthorizationManager::USER_SOURCE_FIELD_NAME << 1);
v2SystemUsersIndexName = std::string(
str::stream() <<
AuthorizationManager::USER_NAME_FIELD_NAME << "_1_" <<
AuthorizationManager::USER_SOURCE_FIELD_NAME << "_1");
return Status::OK();
}
void configureSystemUsersIndexes(const StringData& dbname) {
std::string systemUsers = dbname.toString() + ".system.users";
Client::WriteContext wctx(systemUsers);
NamespaceString systemUsersNS( systemUsers );
createSystemIndexes(systemUsersNS);
NamespaceDetails* nsd = nsdetails(systemUsers);
if (nsd == NULL)
return;
NamespaceDetails::IndexIterator indexIter = nsd->ii();
std::vector<std::string> namedIndexesToDrop;
while (indexIter.more()) {
IndexDetails& idetails = indexIter.next();
if (idetails.keyPattern() == v0SystemUsersKeyPattern ||
idetails.keyPattern() == v1SystemUsersKeyPattern)
namedIndexesToDrop.push_back(idetails.indexName());
}
for (size_t i = 0; i < namedIndexesToDrop.size(); ++i) {
std::string errmsg;
BSONObjBuilder infoBuilder;
if (dropIndexes(nsd,
systemUsers.c_str(),
namedIndexesToDrop[i].c_str(),
errmsg,
infoBuilder,
false)) {
log() << "Dropped index " << namedIndexesToDrop[i] << " from " << systemUsers <<
" because it is incompatible with v2 form privilege documents." << endl;
}
else {
// Only reason should be orphaned index, which dropIndexes logged.
}
}
}
} // namespace
void configureSystemIndexes(const StringData& dbname) {
configureSystemUsersIndexes(dbname);
}
void createSystemIndexes(const NamespaceString& ns) {
if (ns.coll() == "system.users") {
try {
Helpers::ensureIndex(ns.ns().c_str(),
v2SystemUsersKeyPattern,
true, // unique
v2SystemUsersIndexName.c_str());
} catch (const DBException& e) {
if (e.getCode() == ASSERT_ID_DUPKEY) {
log() << "Duplicate key exception while trying to build unique index on " <<
ns << ". This is likely due to upgrade process shenanigans" << endl;
}
throw;
}
}
}
} // namespace authindex
} // namespace mongo
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