public string grant(string privilege, string table, string profile)
{
TablePermission tb = new TablePermission(table);
if (privilege.Equals("INSERT"))
{
tb.addPrivilege(Privileges.INSERT);
}
else if (privilege.Equals("SELECT"))
{
tb.addPrivilege(Privileges.SELECT);
}
else if (privilege.Equals("UPDATE"))
{
tb.addPrivilege(Privileges.UPDATE);
}
else if (privilege.Equals("DELETE"))
{
tb.addPrivilege(Privileges.DELETE);
}
foreach (Profile pr in profiles)
{
if (profile.Equals(pr.getName()))
{
pr.addTablePermission(tb);
}
}
return("Privileges granted");
}
public void removePrivilege(TablePermission tp)
{
TablePermission tpToDelete = tablePermissions.Find(tper => tper.getTableName() == tp.getTableName());
if (tp.samePrivileges(tpToDelete))
{
tablePermissions.Remove(tpToDelete);
}
}
public Boolean samePrivileges(TablePermission tp)
{
Boolean samePrivileges = true;
foreach (Privileges p in privileges)
{
if (!tp.getPrivileges().Contains(p))
{
samePrivileges = false;
}
}
return(samePrivileges);
}
public string revoke(string privilege, string table, string profile)
{
Profile toDelete = null;
toDelete = profiles.Find(pr => pr.getName() == profile);
Profile aux = toDelete;
profiles.Remove(toDelete);
TablePermission tb = new TablePermission(table);
if (privilege.Equals("INSERT"))
{
tb.removePrivilege(Privileges.INSERT);
}
else if (privilege.Equals("SELECT"))
{
tb.removePrivilege(Privileges.SELECT);
}
else if (privilege.Equals("UPDATE"))
{
tb.removePrivilege(Privileges.UPDATE);
}
else if (privilege.Equals("DELETE"))
{
tb.removePrivilege(Privileges.DELETE);
}
if (aux != null)
{
aux.removePrivilege(tb);
profiles.Add(aux);
}
return("Privileges revoked");
}
public void addTablePermission(TablePermission tp)
{
tablePermissions.Add(tp);
}
