User.cc

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
#include "User.h"
#include "pedigree/kernel/process/Process.h"
#include "pedigree/kernel/process/Thread.h"
#include "pedigree/kernel/processor/Processor.h"
#include "pedigree/kernel/processor/ProcessorInformation.h"
#include "pedigree/kernel/utilities/Iterator.h"
#include "pedigree/kernel/utilities/utility.h"
 
#include "Group.h"
 
User::User(size_t uid, const String& username, const String& fullName, Group* pGroup,
           const String& home, const String& shell)
    : m_Uid(uid),
      m_Username(username),
      m_FullName(fullName),
      m_pDefaultGroup(pGroup),
      m_Home(home),
      m_Shell(shell),
      m_Groups() {}
 
User::~User() {}
 
void User::join(Group* pGroup) {
  m_Groups.pushBack(pGroup);
}
 
void User::leave(Group* pGroup) {
  for (List<Group*>::Iterator it = m_Groups.begin(); it != m_Groups.end(); it++) {
    if (*it == pGroup) {
      m_Groups.erase(it);
      return;
    }
  }
}
 
bool User::isMember(Group* pGroup) {
  if (pGroup == m_pDefaultGroup)
    return true;
  for (List<Group*>::Iterator it = m_Groups.begin(); it != m_Groups.end(); it++) {
    if (*it == pGroup)
      return true;
  }
  return false;
}
 
bool User::login() {
  uint32_t groups[FilesystemCredentials::MaximumGroups] = {};
  size_t count = 0;
  for (Group* group : m_Groups) {
    if (!group || group->getId() >= UINT32_MAX || count == FilesystemCredentials::MaximumGroups)
      return false;
    groups[count++] = group->getId();
  }
  return Processor::information().getCurrentThread()->getParent()->installUserIdentity(
      this, m_pDefaultGroup, groups, count);
}