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/* Copyright 2012 10gen Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "mongo/db/auth/user_set.h"
#include <string>
#include <vector>
#include "mongo/db/auth/authorization_manager.h"
#include "mongo/db/auth/user.h"
namespace mongo {
namespace {
class UserSetNameIteratorImpl : public UserNameIterator::Impl {
MONGO_DISALLOW_COPYING(UserSetNameIteratorImpl);
public:
UserSetNameIteratorImpl(const UserSet::iterator& begin,
const UserSet::iterator& end) :
_curr(begin), _end(end) {}
virtual ~UserSetNameIteratorImpl() {}
virtual bool more() const { return _curr != _end; }
virtual const UserName& next() { return (*(_curr++))->getName(); }
virtual const UserName& get() const { return (*_curr)->getName(); }
virtual UserNameIterator::Impl* doClone() const {
return new UserSetNameIteratorImpl(_curr, _end);
}
private:
UserSet::iterator _curr;
UserSet::iterator _end;
};
} // namespace
UserSet::UserSet() : _users(), _usersEnd(_users.end()) {}
UserSet::~UserSet() {}
User* UserSet::add(User* user) {
for (mutable_iterator it = mbegin(); it != mend(); ++it) {
User* current = *it;
if (current->getName().getDB() == user->getName().getDB()) {
// There can be only one user per database.
*it = user;
return current;
}
}
if (_usersEnd == _users.end()) {
_users.push_back(user);
_usersEnd = _users.end();
}
else {
*_usersEnd = user;
++_usersEnd;
}
return NULL;
}
User* UserSet::removeByDBName(const StringData& dbname) {
for (iterator it = begin(); it != end(); ++it) {
User* current = *it;
if (current->getName().getDB() == dbname) {
return removeAt(it);
}
}
return NULL;
}
User* UserSet::replaceAt(iterator it, User* replacement) {
size_t offset = it - begin();
User* old = _users[offset];
_users[offset] = replacement;
return old;
}
User* UserSet::removeAt(iterator it) {
size_t offset = it - begin();
User* old = _users[offset];
--_usersEnd;
_users[offset] = *_usersEnd;
*_usersEnd = NULL;
return old;
}
User* UserSet::lookup(const UserName& name) const {
User* user = lookupByDBName(name.getDB());
if (user && user->getName() == name) {
return user;
}
return NULL;
}
User* UserSet::lookupByDBName(const StringData& dbname) const {
for (iterator it = begin(); it != end(); ++it) {
User* current = *it;
if (current->getName().getDB() == dbname) {
return current;
}
}
return NULL;
}
UserNameIterator UserSet::getNames() const {
return UserNameIterator(new UserSetNameIteratorImpl(begin(), end()));
}
} // namespace mongo
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