// UserSecurityContext.cpp

#include <new>

#include <HashMap.h>

#include "SecurityContext.h"
#include "UserSecurityContext.h"
#include "Node.h"

// PermissionMap
struct UserSecurityContext::PermissionMap : HashMap<NodeRef, Permissions> {
};

// constructor
UserSecurityContext::UserSecurityContext()
        : fUser(NULL),
          fPermissions(NULL)
{
}

// destructor
UserSecurityContext::~UserSecurityContext()
{
        if (fUser)
                fUser->ReleaseReference();

        delete fPermissions;
}

// Init
status_t
UserSecurityContext::Init(User* user)
{
        if (fUser)
                fUser->ReleaseReference();

        fUser = user;
        if (fUser)
                fUser->AcquireReference();

        delete fPermissions;
        fPermissions = new(std::nothrow) PermissionMap;

        if (!fPermissions)
                return B_NO_MEMORY;
        return B_OK;
}

// GetUser
User*
UserSecurityContext::GetUser() const
{
        return fUser;
}

// AddNode
status_t
UserSecurityContext::AddNode(dev_t volumeID, ino_t nodeID,
        Permissions permissions)
{
        return fPermissions->Put(NodeRef(volumeID, nodeID), permissions);
}

// GetNodePermissions
Permissions
UserSecurityContext::GetNodePermissions(dev_t volumeID, ino_t nodeID) const
{
        return fPermissions->Get(NodeRef(volumeID, nodeID));
}

// GetNodePermissions
Permissions
UserSecurityContext::GetNodePermissions(const node_ref& ref) const
{
        return fPermissions->Get(NodeRef(ref));
}

// GetNodePermissions
Permissions
UserSecurityContext::GetNodePermissions(dev_t volumeID, ino_t nodeID,
        Permissions parentPermissions) const
{
        if (fPermissions->ContainsKey(NodeRef(volumeID, nodeID)))
                return fPermissions->Get(NodeRef(volumeID, nodeID));
        return parentPermissions;
}

// GetNodePermissions
Permissions
UserSecurityContext::GetNodePermissions(const node_ref& ref,
        Permissions parentPermissions) const
{
        if (fPermissions->ContainsKey(NodeRef(ref)))
                return fPermissions->Get(NodeRef(ref));
        return parentPermissions;
}