1 files changed, 146 insertions, 146 deletions

diff --git a/system/libraries/Sha1.php b/system/libraries/Sha1.php
index 971c091ad..4dde04038 100644
--- a/system/libraries/Sha1.php
+++ b/system/libraries/Sha1.php
@@ -7,35 +7,35 @@
  * @package		CodeIgniter
  * @author		Rick Ellis
  * @copyright	Copyright (c) 2006, pMachine, Inc.
- * @license		http://www.codeignitor.com/user_guide/license.html 
+ * @license		http://www.codeignitor.com/user_guide/license.html
  * @link		http://www.codeigniter.com
  * @since		Version 1.0
  * @filesource
  */
- 
+
 // ------------------------------------------------------------------------
 
 /**
  * SHA1 Encoding Class
  *
- * Purpose: Provides 160 bit hashing using The Secure Hash Algorithm 
- * developed at the National Institute of Standards and Technology. The 40 
+ * Purpose: Provides 160 bit hashing using The Secure Hash Algorithm
+ * developed at the National Institute of Standards and Technology. The 40
  * character SHA1 message hash is computationally infeasible to crack.
- * 
- * This class is a fallback for servers that are not running PHP greater than 
+ *
+ * This class is a fallback for servers that are not running PHP greater than
  * 4.3, or do not have the MHASH library.
  *
  * This class is based on two scripts:
- *  
- * Marcus Campbell's PHP implementation (GNU license) 
+ *
+ * Marcus Campbell's PHP implementation (GNU license)
  * http://www.tecknik.net/sha-1/
  *
- * ...which is based on Paul Johnston's JavaScript version 
+ * ...which is based on Paul Johnston's JavaScript version
  * (BSD license). http://pajhome.org.uk/
- * 
+ *
  * I encapsulated the functions and wrote one additional method to fix
  * a hex conversion bug. - Rick Ellis
- * 
+ *
  * @package		CodeIgniter
  * @subpackage	Libraries
  * @category	Encryption
@@ -56,67 +56,67 @@ class CI_SHA {
 	 * @param	string
 	 * @return	string
 	 */	
-    function generate($str) 
-    {
-        $n = ((strlen($str) + 8) >> 6) + 1;
-        
-        for ($i = 0; $i < $n * 16; $i++)
-        {
-            $x[$i] = 0;
-        }
-        
-        for ($i = 0; $i < strlen($str); $i++)
-        {
-            $x[$i >> 2] |= ord(substr($str, $i, 1)) << (24 - ($i % 4) * 8);
-        }
-        
-        $x[$i >> 2] |= 0x80 << (24 - ($i % 4) * 8);
-        
-        $x[$n * 16 - 1] = strlen($str) * 8;
-        
-        $a =  1732584193;
-        $b = -271733879;
-        $c = -1732584194;
-        $d =  271733878;
-        $e = -1009589776;
-        
-        for ($i = 0; $i < sizeof($x); $i += 16) 
-        {
-            $olda = $a;
-            $oldb = $b;
-            $oldc = $c;
-            $oldd = $d;
-            $olde = $e;
-            
-            for($j = 0; $j < 80; $j++) 
-            {
-                if ($j < 16)
-                {
-                    $w[$j] = $x[$i + $j];
-                }
-                else
-                {
-                    $w[$j] = $this->_rol($w[$j - 3] ^ $w[$j - 8] ^ $w[$j - 14] ^ $w[$j - 16], 1);
-                }
-                
-                $t = $this->_safe_add($this->_safe_add($this->_rol($a, 5), $this->_ft($j, $b, $c, $d)), $this->_safe_add($this->_safe_add($e, $w[$j]), $this->_kt($j)));
-                
-                $e = $d;
-                $d = $c;
-                $c = $this->_rol($b, 30);
-                $b = $a;
-                $a = $t;
-            }
-
-            $a = $this->_safe_add($a, $olda);
-            $b = $this->_safe_add($b, $oldb);
-            $c = $this->_safe_add($c, $oldc);
-            $d = $this->_safe_add($d, $oldd);
-            $e = $this->_safe_add($e, $olde);
-        }
-        
-        return $this->_hex($a).$this->_hex($b).$this->_hex($c).$this->_hex($d).$this->_hex($e);
-    }
+	function generate($str)
+	{
+		$n = ((strlen($str) + 8) >> 6) + 1;
+
+		for ($i = 0; $i < $n * 16; $i++)
+		{
+			$x[$i] = 0;
+		}
+
+		for ($i = 0; $i < strlen($str); $i++)
+		{
+			$x[$i >> 2] |= ord(substr($str, $i, 1)) << (24 - ($i % 4) * 8);
+		}
+
+		$x[$i >> 2] |= 0x80 << (24 - ($i % 4) * 8);
+
+		$x[$n * 16 - 1] = strlen($str) * 8;
+
+		$a =  1732584193;
+		$b = -271733879;
+		$c = -1732584194;
+		$d =  271733878;
+		$e = -1009589776;
+
+		for ($i = 0; $i < sizeof($x); $i += 16)
+		{
+			$olda = $a;
+			$oldb = $b;
+			$oldc = $c;
+			$oldd = $d;
+			$olde = $e;
+
+			for($j = 0; $j < 80; $j++)
+			{
+				if ($j < 16)
+				{
+					$w[$j] = $x[$i + $j];
+				}
+				else
+				{
+					$w[$j] = $this->_rol($w[$j - 3] ^ $w[$j - 8] ^ $w[$j - 14] ^ $w[$j - 16], 1);
+				}
+
+				$t = $this->_safe_add($this->_safe_add($this->_rol($a, 5), $this->_ft($j, $b, $c, $d)), $this->_safe_add($this->_safe_add($e, $w[$j]), $this->_kt($j)));
+
+				$e = $d;
+				$d = $c;
+				$c = $this->_rol($b, 30);
+				$b = $a;
+				$a = $t;
+			}
+
+			$a = $this->_safe_add($a, $olda);
+			$b = $this->_safe_add($b, $oldb);
+			$c = $this->_safe_add($c, $oldc);
+			$d = $this->_safe_add($d, $oldd);
+			$e = $this->_safe_add($e, $olde);
+		}
+
+		return $this->_hex($a).$this->_hex($b).$this->_hex($c).$this->_hex($d).$this->_hex($e);
+	}
   	
 	// --------------------------------------------------------------------
 
@@ -127,17 +127,17 @@ class CI_SHA {
 	 * @param	string
 	 * @return	string
 	 */	
-    function _hex($str)
-    {
-        $str = dechex($str);
-        
-        if (strlen($str) == 7)
-        {
-            $str = '0'.$str;
-        }
-            
-        return $str;
-    }    
+	function _hex($str)
+	{
+		$str = dechex($str);
+
+		if (strlen($str) == 7)
+		{
+			$str = '0'.$str;
+		}
+
+		return $str;
+	}
   	
 	// --------------------------------------------------------------------
 
@@ -147,18 +147,18 @@ class CI_SHA {
 	 * @access	private
 	 * @return	string
 	 */	
-    function _ft($t, $b, $c, $d) 
-    {
-        if ($t < 20) 
-            return ($b & $c) | ((~$b) & $d);
-        if ($t < 40) 
-            return $b ^ $c ^ $d;
-        if ($t < 60) 
-            return ($b & $c) | ($b & $d) | ($c & $d);
-        
-        return $b ^ $c ^ $d;
-    }
-  
+	function _ft($t, $b, $c, $d)
+	{
+		if ($t < 20)
+			return ($b & $c) | ((~$b) & $d);
+		if ($t < 40)
+			return $b ^ $c ^ $d;
+		if ($t < 60)
+			return ($b & $c) | ($b & $d) | ($c & $d);
+
+		return $b ^ $c ^ $d;
+	}
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -167,25 +167,25 @@ class CI_SHA {
 	 * @access	private
 	 * @return	string
 	 */	
-    function _kt($t) 
-    {
-        if ($t < 20) 
-        {
-            return 1518500249;
-        } 
-        else if ($t < 40) 
-        {
-            return 1859775393;
-        } 
-        else if ($t < 60) 
-        {
-            return -1894007588;
-        } 
-        else 
-        {
-            return -899497514;
-        }
-    }
+	function _kt($t)
+	{
+		if ($t < 20)
+		{
+			return 1518500249;
+		}
+		else if ($t < 40)
+		{
+			return 1859775393;
+		}
+		else if ($t < 60)
+		{
+			return -1894007588;
+		}
+		else
+		{
+			return -899497514;
+		}
+	}
   	
 	// --------------------------------------------------------------------
 
@@ -195,13 +195,13 @@ class CI_SHA {
 	 * @access	private
 	 * @return	string
 	 */	
-    function _safe_add($x, $y)
-    {
-        $lsw = ($x & 0xFFFF) + ($y & 0xFFFF);
-        $msw = ($x >> 16) + ($y >> 16) + ($lsw >> 16);
-    
-        return ($msw << 16) | ($lsw & 0xFFFF);
-    }
+	function _safe_add($x, $y)
+	{
+		$lsw = ($x & 0xFFFF) + ($y & 0xFFFF);
+		$msw = ($x >> 16) + ($y >> 16) + ($lsw >> 16);
+
+		return ($msw << 16) | ($lsw & 0xFFFF);
+	}
   	
 	// --------------------------------------------------------------------
 
@@ -211,11 +211,11 @@ class CI_SHA {
 	 * @access	private
 	 * @return	integer
 	 */	
-    function _rol($num, $cnt)
-    {
-        return ($num << $cnt) | $this->_zero_fill($num, 32 - $cnt);
-    }
-  
+	function _rol($num, $cnt)
+	{
+		return ($num << $cnt) | $this->_zero_fill($num, 32 - $cnt);
+	}
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -224,26 +224,26 @@ class CI_SHA {
 	 * @access	private
 	 * @return	string
 	 */	
-    function _zero_fill($a, $b) 
-    {
-        $bin = decbin($a);
-        
-        if (strlen($bin) < $b)
-        {
-            $bin = 0;
-        }
-        else
-        {
-            $bin = substr($bin, 0, strlen($bin) - $b);
-        }
-        
-        for ($i=0; $i < $b; $i++) 
-        {
-            $bin = "0".$bin;
-        }
-        
-        return bindec($bin);
-    }
+	function _zero_fill($a, $b)
+	{
+		$bin = decbin($a);
+
+		if (strlen($bin) < $b)
+		{
+			$bin = 0;
+		}
+		else
+		{
+			$bin = substr($bin, 0, strlen($bin) - $b);
+		}
+
+		for ($i=0; $i < $b; $i++)
+		{
+			$bin = "0".$bin;
+		}
+
+		return bindec($bin);
+	}
 }
 // END CI_SHA
 ?>
\ No newline at end of file