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how to use this simple acl library into codeigniter - Printable Version

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+--- Thread: how to use this simple acl library into codeigniter (/showthread.php?tid=54104)

how to use this simple acl library into codeigniter - El Forum - 08-22-2012

[eluser]Unknown[/eluser]
i used cakephp before and now use codeigniter but Unfortunately hasn't any authentication or ACL built-in library ..after more search i have found a good library, but I do not know how to use it..it is no example to use it..any one have create controller and model as sample...thanks for helping

Code:
class acl
{
var $perms = array();  //Array : Stores the permissions for the user
var $userID;   //Integer : Stores the ID of the current user
var $userRoles = array(); //Array : Stores the roles of the current user
var $ci;
function __construct($config=array()) {
  $this->ci = &get;_instance();

  $this->userID = floatval($config['userID']);
  $this->userRoles = $this->getUserRoles();
  $this->buildACL();
}

function buildACL() {
  //first, get the rules for the user's role
  if (count($this->userRoles) > 0)
  {
   $this->perms = array_merge($this->perms,$this->getRolePerms($this->userRoles));
  }
  //then, get the individual user permissions
  $this->perms = array_merge($this->perms,$this->getUserPerms($this->userID));
}

function getPermKeyFromID($permID) {
  //$strSQL = "SELECT `permKey` FROM `".DB_PREFIX."permissions` WHERE `ID` = " . floatval($permID) . " LIMIT 1";
  $this->ci->db->select('permKey');
  $this->ci->db->where('id',floatval($permID));
  $sql = $this->ci->db->get('perm_data',1);
  $data = $sql->result();
  return $data[0]->permKey;
}

function getPermNameFromID($permID) {
  //$strSQL = "SELECT `permName` FROM `".DB_PREFIX."permissions` WHERE `ID` = " . floatval($permID) . " LIMIT 1";
  $this->ci->db->select('permName');
  $this->ci->db->where('id',floatval($permID));
  $sql = $this->ci->db->get('perm_data',1);
  $data = $sql->result();
  return $data[0]->permName;
}

function getRoleNameFromID($roleID) {
  //$strSQL = "SELECT `roleName` FROM `".DB_PREFIX."roles` WHERE `ID` = " . floatval($roleID) . " LIMIT 1";
  $this->ci->db->select('roleName');
  $this->ci->db->where('id',floatval($roleID),1);
  $sql = $this->ci->db->get('role_data');
  $data = $sql->result();
  return $data[0]->roleName;
}

function getUserRoles() {
  //$strSQL = "SELECT * FROM `".DB_PREFIX."user_roles` WHERE `userID` = " . floatval($this->userID) . " ORDER BY `addDate` ASC";

  $this->ci->db->where(array('userID'=>floatval($this->userID)));
  $this->ci->db->order_by('addDate','asc');
  $sql = $this->ci->db->get('user_roles');
  $data = $sql->result();

  $resp = array();
  foreach( $data as $row )
  {
   $resp[] = $row->roleID;
  }
  return $resp;
}

function getAllRoles($format='ids') {
  $format = strtolower($format);
  //$strSQL = "SELECT * FROM `".DB_PREFIX."roles` ORDER BY `roleName` ASC";
  $this->ci->db->order_by('roleName','asc');
  $sql = $this->ci->db->get('role_data');
  $data = $sql->result();

  $resp = array();
  foreach( $data as $row )
  {
   if ($format == 'full')
   {
    $resp[] = array("id" => $row->ID,"name" => $row->roleName);
   } else {
    $resp[] = $row->ID;
   }
  }
  return $resp;
}

function getAllPerms($format='ids') {
  $format = strtolower($format);
  //$strSQL = "SELECT * FROM `".DB_PREFIX."permissions` ORDER BY `permKey` ASC";

  $this->ci->db->order_by('permKey','asc');
  $sql = $this->ci->db->get('perm_data');
  $data = $sql->result();

  $resp = array();
  foreach( $data as $row )
  {
   if ($format == 'full')
   {
    $resp[$row->permKey] = array('id' => $row->ID, 'name' => $row->permName, 'key' => $row->permKey);
   } else {
    $resp[] = $row->ID;
   }
  }
  return $resp;
}

function getRolePerms($role) {
  if (is_array($role))
  {
   //$roleSQL = "SELECT * FROM `".DB_PREFIX."role_perms` WHERE `roleID` IN (" . implode(",",$role) . ") ORDER BY `ID` ASC";
   $this->ci->db->where_in('roleID',$role);
  } else {
   //$roleSQL = "SELECT * FROM `".DB_PREFIX."role_perms` WHERE `roleID` = " . floatval($role) . " ORDER BY `ID` ASC";
   $this->ci->db->where(array('roleID'=>floatval($role)));

  }
  $this->ci->db->order_by('id','asc');
  $sql = $this->ci->db->get('role_perms'); //$this->db->select($roleSQL);
  $data = $sql->result();
  $perms = array();
  foreach( $data as $row )
  {
   $pK = strtolower($this->getPermKeyFromID($row->permID));
   if ($pK == '') { continue; }
   if ($row->value === '1') {
    $hP = true;
   } else {
    $hP = false;
   }
   $perms[$pK] = array('perm' => $pK,'inheritted' => true,'value' => $hP,'name' => $this->getPermNameFromID($row->permID),'id' => $row->permID);
  }
  return $perms;
}

function getUserPerms($userID) {
  //$strSQL = "SELECT * FROM `".DB_PREFIX."user_perms` WHERE `userID` = " . floatval($userID) . " ORDER BY `addDate` ASC";

  $this->ci->db->where('userID',floatval($userID));
  $this->ci->db->order_by('addDate','asc');
  $sql = $this->ci->db->get('user_perms');
  $data = $sql->result();

  $perms = array();
  foreach( $data as $row )
  {
   $pK = strtolower($this->getPermKeyFromID($row->permID));
   if ($pK == '') { continue; }
   if ($row->value == '1') {
    $hP = true;
   } else {
    $hP = false;
   }
   $perms[$pK] = array('perm' => $pK,'inheritted' => false,'value' => $hP,'name' => $this->getPermNameFromID($row->permID),'id' => $row->permID);
  }
  return $perms;
}

function hasRole($roleID) {
  foreach($this->userRoles as $k => $v)
  {
   if (floatval($v) === floatval($roleID))
   {
    return true;
   }
  }
  return false;
}

function hasPermission($permKey) {
  $permKey = strtolower($permKey);
  if (array_key_exists($permKey,$this->perms))
  {
   if ($this->perms[$permKey]['value'] === '1' || $this->perms[$permKey]['value'] === true)
   {
    return true;
   } else {
    return false;
   }
  } else {
   return false;
  }
}
}