Tiqr / tiqr-server-libphp

library/tiqr/OATH/OCRAParser.php

Indentation +229 added lines, -229 removed lines

@@ -4,241 +4,241 @@
 
 class OATH_OCRAParser {
 
-	private $key = NULL;
-
-	private $OCRASuite = NULL;
-
-	private $OCRAVersion = NULL;
-
-	private $CryptoFunctionType = NULL;
-	private $CryptoFunctionHash = NULL;
-	private $CryptoFunctionHashLength = NULL;
-	private $CryptoFunctionTruncation = NULL;
-
-	private $C = FALSE;
-	private $Q = FALSE;
-	private $QType = 'N';
-	private $QLength = 8;
-
-	private $P = FALSE;
-	private $PType = 'SHA1';
-	private $PLength = 20;
-
-	private $S = FALSE;
-	private $SLength = 64;
-
-	private $T = FALSE;
-	private $TLength = 60; // 1M
-	private $TPeriods = array('H' => 3600, 'M' => 60, 'S' => 1);
-
-	private $supportedHashFunctions = array('SHA1' => 20, 'SHA256' => 32, 'SHA512' => 64);
-
-
-	public function __construct($ocraSuite) {
-		$this->parseOCRASuite($ocraSuite);
-	}
-
-	/**
-	 * Inspired by https://github.com/bdauvergne/python-oath
-	 */
-	private function parseOCRASuite($ocraSuite) {
-		if (!is_string($ocraSuite)) {
-			throw new Exception('OCRASuite not in string format: ' . var_export($ocraSuite, TRUE));
-		}
-
-		$ocraSuite = strtoupper($ocraSuite);
-		$this->OCRASuite = $ocraSuite;
-
-		$s = explode(':', $ocraSuite);
-		if (count($s) != 3) {
-			throw new Exception('Invalid OCRASuite format: ' . var_export($ocraSuite, TRUE));
-		}
-
-		$algo = explode('-', $s[0]);
-		if (count($algo) != 2) {
-			throw new Exception('Invalid OCRA version: ' . var_export($s[0], TRUE));
-		}
-
-		if ($algo[0] !== 'OCRA') {
-			throw new Exception('Unsupported OCRA algorithm: ' . var_export($algo[0], TRUE));
-		}
-
-		if ($algo[1] !== '1') {
-			throw new Exception('Unsupported OCRA version: ' . var_export($algo[1], TRUE));
-		}
-		$this->OCRAVersion = $algo[1];
-
-		$cf = explode('-', $s[1]);
-		if (count($cf) != 3) {
-			throw new Exception('Invalid OCRA suite crypto function: ' . var_export($s[1], TRUE));
-		}
-
-		if ($cf[0] !== 'HOTP') {
-			throw new Exception('Unsupported OCRA suite crypto function: ' . var_export($cf[0], TRUE));
-		}
-		$this->CryptoFunctionType = $cf[0];
-
-		if (!array_key_exists($cf[1], $this->supportedHashFunctions)) {
-			throw new Exception('Unsupported hash function in OCRA suite crypto function: ' . var_export($cf[1], TRUE));
-		}
-		$this->CryptoFunctionHash = $cf[1];
-		$this->CryptoFunctionHashLength = $this->supportedHashFunctions[$cf[1]];
-
-		if (!preg_match('/^\d+$/', $cf[2]) || (($cf[2] < 4 || $cf[2] > 10) && $cf[2] != 0)) {
-			throw new Exception('Invalid OCRA suite crypto function truncation length: ' . var_export($cf[2], TRUE));
-		}
-		$this->CryptoFunctionTruncation = intval($cf[2]);
-
-		$di = explode('-', $s[2]);
-		if (count($cf) == 0) {
-			throw new Exception('Invalid OCRA suite data input: ' . var_export($s[2], TRUE));
-		}
-
-		$data_input = array();
-		foreach($di as $elem) {
-			$letter = $elem[0];
-			if (array_key_exists($letter, $data_input)) {
-				throw new Exception('Duplicate field in OCRA suite data input: ' . var_export($elem, TRUE));
-			}
-			$data_input[$letter] = 1;
-
-			if ($letter === 'C' && strlen($elem) == 1) {
-				$this->C = TRUE;
-			} elseif ($letter === 'Q') {
-				if (strlen($elem) == 1) {
-					$this->Q = TRUE;
-				} elseif (preg_match('/^Q([AHN])(\d+)$/', $elem, $match)) {
-					$q_len = intval($match[2]);
-					if ($q_len < 4 || $q_len > 64) {
-						throw new Exception('Invalid OCRA suite data input question length: ' . var_export($q_len, TRUE));
-					}
-					$this->Q = TRUE;
-					$this->QType = $match[1];
-					$this->QLength = $q_len;
-				} else {
-					throw new Exception('Invalid OCRA suite data input question: ' . var_export($elem, TRUE));
-				}
-			} elseif ($letter === 'P') {
-				if (strlen($elem) == 1) {
-					$this->P = TRUE;
-				} else {
-					$p_algo = substr($elem, 1);
-					if (!array_key_exists($p_algo, $this->supportedHashFunctions)) {
-						throw new Exception('Unsupported OCRA suite PIN hash function: ' . var_export($elem, TRUE));
-					}
-					$this->P = TRUE;
-					$this->PType = $p_algo;
-					$this->PLength = $this->supportedHashFunctions[$p_algo];
-				}
-			} elseif ($letter === 'S') {
-				if (strlen($elem) == 1) {
-					$this->S = TRUE;
-				} elseif (preg_match('/^S(\d+)$/', $elem, $match)) {
-					$s_len = intval($match[1]);
-					if ($s_len <= 0 || $s_len > 512) {
-						throw new Exception('Invalid OCRA suite data input session information length: ' . var_export($s_len, TRUE));
-					}
-
-					$this->S = TRUE;
-					$this->SLength = $s_len;
-				} else {
-					throw new Exception('Invalid OCRA suite data input session information length: ' . var_export($elem, TRUE));
-				}
-			} elseif ($letter === 'T') {
-				if (strlen($elem) == 1) {
-					$this->T = TRUE;
-				} elseif (preg_match('/^T(\d+[HMS])+$/', $elem)) {
-					preg_match_all('/(\d+)([HMS])/', $elem, $match);
-
-					if (count($match[1]) !== count(array_unique($match[2]))) {
-						throw new Exception('Duplicate definitions in OCRA suite data input timestamp: ' . var_export($elem, TRUE));
-					}
-
-					$length = 0;
-					for ($i = 0; $i < count($match[1]); $i++) {
-						$length += intval($match[1][$i]) * $this->TPeriods[$match[2][$i]];
-					}
-					if ($length <= 0) {
-						throw new Exception('Invalid OCRA suite data input timestamp: ' . var_export($elem, TRUE));
-					}
-
-					$this->T = TRUE;
-					$this->TLength = $length;
-				} else {
-					throw new Exception('Invalid OCRA suite data input timestamp: ' . var_export($elem, TRUE));
-				}
-			} else {
-				throw new Exception('Unsupported OCRA suite data input field: ' . var_export($elem, TRUE));
-			}
-		}
-
-		if (!$this->Q) {
-			throw new Exception('OCRA suite data input question not defined: ' . var_export($s[2], TRUE));
-		}
-	}
-
-	public function generateChallenge() {
-		$q_length = $this->QLength;
-		$q_type = $this->QType;
+    private $key = NULL;
+
+    private $OCRASuite = NULL;
+
+    private $OCRAVersion = NULL;
+
+    private $CryptoFunctionType = NULL;
+    private $CryptoFunctionHash = NULL;
+    private $CryptoFunctionHashLength = NULL;
+    private $CryptoFunctionTruncation = NULL;
+
+    private $C = FALSE;
+    private $Q = FALSE;
+    private $QType = 'N';
+    private $QLength = 8;
+
+    private $P = FALSE;
+    private $PType = 'SHA1';
+    private $PLength = 20;
+
+    private $S = FALSE;
+    private $SLength = 64;
+
+    private $T = FALSE;
+    private $TLength = 60; // 1M
+    private $TPeriods = array('H' => 3600, 'M' => 60, 'S' => 1);
+
+    private $supportedHashFunctions = array('SHA1' => 20, 'SHA256' => 32, 'SHA512' => 64);
+
+
+    public function __construct($ocraSuite) {
+        $this->parseOCRASuite($ocraSuite);
+    }
+
+    /**
+     * Inspired by https://github.com/bdauvergne/python-oath
+     */
+    private function parseOCRASuite($ocraSuite) {
+        if (!is_string($ocraSuite)) {
+            throw new Exception('OCRASuite not in string format: ' . var_export($ocraSuite, TRUE));
+        }
+
+        $ocraSuite = strtoupper($ocraSuite);
+        $this->OCRASuite = $ocraSuite;
+
+        $s = explode(':', $ocraSuite);
+        if (count($s) != 3) {
+            throw new Exception('Invalid OCRASuite format: ' . var_export($ocraSuite, TRUE));
+        }
+
+        $algo = explode('-', $s[0]);
+        if (count($algo) != 2) {
+            throw new Exception('Invalid OCRA version: ' . var_export($s[0], TRUE));
+        }
+
+        if ($algo[0] !== 'OCRA') {
+            throw new Exception('Unsupported OCRA algorithm: ' . var_export($algo[0], TRUE));
+        }
+
+        if ($algo[1] !== '1') {
+            throw new Exception('Unsupported OCRA version: ' . var_export($algo[1], TRUE));
+        }
+        $this->OCRAVersion = $algo[1];
+
+        $cf = explode('-', $s[1]);
+        if (count($cf) != 3) {
+            throw new Exception('Invalid OCRA suite crypto function: ' . var_export($s[1], TRUE));
+        }
+
+        if ($cf[0] !== 'HOTP') {
+            throw new Exception('Unsupported OCRA suite crypto function: ' . var_export($cf[0], TRUE));
+        }
+        $this->CryptoFunctionType = $cf[0];
+
+        if (!array_key_exists($cf[1], $this->supportedHashFunctions)) {
+            throw new Exception('Unsupported hash function in OCRA suite crypto function: ' . var_export($cf[1], TRUE));
+        }
+        $this->CryptoFunctionHash = $cf[1];
+        $this->CryptoFunctionHashLength = $this->supportedHashFunctions[$cf[1]];
+
+        if (!preg_match('/^\d+$/', $cf[2]) || (($cf[2] < 4 || $cf[2] > 10) && $cf[2] != 0)) {
+            throw new Exception('Invalid OCRA suite crypto function truncation length: ' . var_export($cf[2], TRUE));
+        }
+        $this->CryptoFunctionTruncation = intval($cf[2]);
+
+        $di = explode('-', $s[2]);
+        if (count($cf) == 0) {
+            throw new Exception('Invalid OCRA suite data input: ' . var_export($s[2], TRUE));
+        }
+
+        $data_input = array();
+        foreach($di as $elem) {
+            $letter = $elem[0];
+            if (array_key_exists($letter, $data_input)) {
+                throw new Exception('Duplicate field in OCRA suite data input: ' . var_export($elem, TRUE));
+            }
+            $data_input[$letter] = 1;
+
+            if ($letter === 'C' && strlen($elem) == 1) {
+                $this->C = TRUE;
+            } elseif ($letter === 'Q') {
+                if (strlen($elem) == 1) {
+                    $this->Q = TRUE;
+                } elseif (preg_match('/^Q([AHN])(\d+)$/', $elem, $match)) {
+                    $q_len = intval($match[2]);
+                    if ($q_len < 4 || $q_len > 64) {
+                        throw new Exception('Invalid OCRA suite data input question length: ' . var_export($q_len, TRUE));
+                    }
+                    $this->Q = TRUE;
+                    $this->QType = $match[1];
+                    $this->QLength = $q_len;
+                } else {
+                    throw new Exception('Invalid OCRA suite data input question: ' . var_export($elem, TRUE));
+                }
+            } elseif ($letter === 'P') {
+                if (strlen($elem) == 1) {
+                    $this->P = TRUE;
+                } else {
+                    $p_algo = substr($elem, 1);
+                    if (!array_key_exists($p_algo, $this->supportedHashFunctions)) {
+                        throw new Exception('Unsupported OCRA suite PIN hash function: ' . var_export($elem, TRUE));
+                    }
+                    $this->P = TRUE;
+                    $this->PType = $p_algo;
+                    $this->PLength = $this->supportedHashFunctions[$p_algo];
+                }
+            } elseif ($letter === 'S') {
+                if (strlen($elem) == 1) {
+                    $this->S = TRUE;
+                } elseif (preg_match('/^S(\d+)$/', $elem, $match)) {
+                    $s_len = intval($match[1]);
+                    if ($s_len <= 0 || $s_len > 512) {
+                        throw new Exception('Invalid OCRA suite data input session information length: ' . var_export($s_len, TRUE));
+                    }
+
+                    $this->S = TRUE;
+                    $this->SLength = $s_len;
+                } else {
+                    throw new Exception('Invalid OCRA suite data input session information length: ' . var_export($elem, TRUE));
+                }
+            } elseif ($letter === 'T') {
+                if (strlen($elem) == 1) {
+                    $this->T = TRUE;
+                } elseif (preg_match('/^T(\d+[HMS])+$/', $elem)) {
+                    preg_match_all('/(\d+)([HMS])/', $elem, $match);
+
+                    if (count($match[1]) !== count(array_unique($match[2]))) {
+                        throw new Exception('Duplicate definitions in OCRA suite data input timestamp: ' . var_export($elem, TRUE));
+                    }
+
+                    $length = 0;
+                    for ($i = 0; $i < count($match[1]); $i++) {
+                        $length += intval($match[1][$i]) * $this->TPeriods[$match[2][$i]];
+                    }
+                    if ($length <= 0) {
+                        throw new Exception('Invalid OCRA suite data input timestamp: ' . var_export($elem, TRUE));
+                    }
+
+                    $this->T = TRUE;
+                    $this->TLength = $length;
+                } else {
+                    throw new Exception('Invalid OCRA suite data input timestamp: ' . var_export($elem, TRUE));
+                }
+            } else {
+                throw new Exception('Unsupported OCRA suite data input field: ' . var_export($elem, TRUE));
+            }
+        }
+
+        if (!$this->Q) {
+            throw new Exception('OCRA suite data input question not defined: ' . var_export($s[2], TRUE));
+        }
+    }
+
+    public function generateChallenge() {
+        $q_length = $this->QLength;
+        $q_type = $this->QType;
 
         $bytes = Tiqr_Random::randomBytes($q_length);
 
-		switch($q_type) {
-			case 'A':
-				$challenge = base64_encode($bytes);
-				$tr = implode("", unpack('H*', $bytes));
-				$challenge = rtrim(strtr($challenge, '+/', $tr), '=');
-				break;
-			case 'H':
-				$challenge = implode("", unpack('H*', $bytes));
-				break;
-			case 'N':
-				$challenge = implode("", unpack('N*', $bytes));
-				break;
-			default:
-				throw new Exception('Unsupported OCRASuite challenge type: ' . var_export($q_type, TRUE));
-				break;
-		}
-
-		$challenge = substr($challenge, 0, $q_length);
-
-		return $challenge;
-	}
-
-
-	public function generateSessionInformation() {
-		if (!$this->S) {
-			throw new Exception('Session information not defined in OCRASuite: ' . var_export($this->OCRASuite, TRUE));
-		}
-
-		$s_length = $this->SLength;
+        switch($q_type) {
+            case 'A':
+                $challenge = base64_encode($bytes);
+                $tr = implode("", unpack('H*', $bytes));
+                $challenge = rtrim(strtr($challenge, '+/', $tr), '=');
+                break;
+            case 'H':
+                $challenge = implode("", unpack('H*', $bytes));
+                break;
+            case 'N':
+                $challenge = implode("", unpack('N*', $bytes));
+                break;
+            default:
+                throw new Exception('Unsupported OCRASuite challenge type: ' . var_export($q_type, TRUE));
+                break;
+        }
+
+        $challenge = substr($challenge, 0, $q_length);
+
+        return $challenge;
+    }
+
+
+    public function generateSessionInformation() {
+        if (!$this->S) {
+            throw new Exception('Session information not defined in OCRASuite: ' . var_export($this->OCRASuite, TRUE));
+        }
+
+        $s_length = $this->SLength;
         $bytes = Tiqr_Random::randomBytes($s_length);
 
-		// The OCRA spec doesn't specify that the session data should be hexadecimal.
-		// However the reference implementation in the RFC does treat it as hex.
-		$session = bin2hex($bytes);
+        // The OCRA spec doesn't specify that the session data should be hexadecimal.
+        // However the reference implementation in the RFC does treat it as hex.
+        $session = bin2hex($bytes);
 		
-		$session = substr($session, 0, $s_length);
+        $session = substr($session, 0, $s_length);
 		
-		return $session;
-	}
-
-
-	/**
-	 * Constant time string comparison, see http://codahale.com/a-lesson-in-timing-attacks/
-	 */
-	public static function constEqual($s1, $s2) {
-		if (strlen($s1) != strlen($s2)) {
-			return FALSE;
-		}
-
-		$result = TRUE;
-		$length = strlen($s1);
-		for ($i = 0; $i < $length; $i++) {
-			$result &= ($s1[$i] == $s2[$i]);
-		}
-
-		return (boolean)$result;
-	}
+        return $session;
+    }
+
+
+    /**
+     * Constant time string comparison, see http://codahale.com/a-lesson-in-timing-attacks/
+     */
+    public static function constEqual($s1, $s2) {
+        if (strlen($s1) != strlen($s2)) {
+            return FALSE;
+        }
+
+        $result = TRUE;
+        $length = strlen($s1);
+        for ($i = 0; $i < $length; $i++) {
+            $result &= ($s1[$i] == $s2[$i]);
+        }
+
+        return (boolean)$result;
+    }
 
 }

Spacing +27 added lines, -27 removed lines

@@ -1,6 +1,6 @@ 
 <?php
 
-require_once ( __DIR__ . "/../Tiqr/Random.php");
+require_once (__DIR__."/../Tiqr/Random.php");
 
 class OATH_OCRAParser {
 
@@ -43,7 +43,7 @@ 
 	 */
 	private function parseOCRASuite($ocraSuite) {
 		if (!is_string($ocraSuite)) {
-			throw new Exception('OCRASuite not in string format: ' . var_export($ocraSuite, TRUE));
+			throw new Exception('OCRASuite not in string format: '.var_export($ocraSuite, TRUE));
 		}
 
 		$ocraSuite = strtoupper($ocraSuite);
@@ -51,54 +51,54 @@ 
 
 		$s = explode(':', $ocraSuite);
 		if (count($s) != 3) {
-			throw new Exception('Invalid OCRASuite format: ' . var_export($ocraSuite, TRUE));
+			throw new Exception('Invalid OCRASuite format: '.var_export($ocraSuite, TRUE));
 		}
 
 		$algo = explode('-', $s[0]);
 		if (count($algo) != 2) {
-			throw new Exception('Invalid OCRA version: ' . var_export($s[0], TRUE));
+			throw new Exception('Invalid OCRA version: '.var_export($s[0], TRUE));
 		}
 
 		if ($algo[0] !== 'OCRA') {
-			throw new Exception('Unsupported OCRA algorithm: ' . var_export($algo[0], TRUE));
+			throw new Exception('Unsupported OCRA algorithm: '.var_export($algo[0], TRUE));
 		}
 
 		if ($algo[1] !== '1') {
-			throw new Exception('Unsupported OCRA version: ' . var_export($algo[1], TRUE));
+			throw new Exception('Unsupported OCRA version: '.var_export($algo[1], TRUE));
 		}
 		$this->OCRAVersion = $algo[1];
 
 		$cf = explode('-', $s[1]);
 		if (count($cf) != 3) {
-			throw new Exception('Invalid OCRA suite crypto function: ' . var_export($s[1], TRUE));
+			throw new Exception('Invalid OCRA suite crypto function: '.var_export($s[1], TRUE));
 		}
 
 		if ($cf[0] !== 'HOTP') {
-			throw new Exception('Unsupported OCRA suite crypto function: ' . var_export($cf[0], TRUE));
+			throw new Exception('Unsupported OCRA suite crypto function: '.var_export($cf[0], TRUE));
 		}
 		$this->CryptoFunctionType = $cf[0];
 
 		if (!array_key_exists($cf[1], $this->supportedHashFunctions)) {
-			throw new Exception('Unsupported hash function in OCRA suite crypto function: ' . var_export($cf[1], TRUE));
+			throw new Exception('Unsupported hash function in OCRA suite crypto function: '.var_export($cf[1], TRUE));
 		}
 		$this->CryptoFunctionHash = $cf[1];
 		$this->CryptoFunctionHashLength = $this->supportedHashFunctions[$cf[1]];
 
 		if (!preg_match('/^\d+$/', $cf[2]) || (($cf[2] < 4 || $cf[2] > 10) && $cf[2] != 0)) {
-			throw new Exception('Invalid OCRA suite crypto function truncation length: ' . var_export($cf[2], TRUE));
+			throw new Exception('Invalid OCRA suite crypto function truncation length: '.var_export($cf[2], TRUE));
 		}
 		$this->CryptoFunctionTruncation = intval($cf[2]);
 
 		$di = explode('-', $s[2]);
 		if (count($cf) == 0) {
-			throw new Exception('Invalid OCRA suite data input: ' . var_export($s[2], TRUE));
+			throw new Exception('Invalid OCRA suite data input: '.var_export($s[2], TRUE));
 		}
 
 		$data_input = array();
-		foreach($di as $elem) {
+		foreach ($di as $elem) {
 			$letter = $elem[0];
 			if (array_key_exists($letter, $data_input)) {
-				throw new Exception('Duplicate field in OCRA suite data input: ' . var_export($elem, TRUE));
+				throw new Exception('Duplicate field in OCRA suite data input: '.var_export($elem, TRUE));
 			}
 			$data_input[$letter] = 1;
 
@@ -110,13 +110,13 @@ 
 				} elseif (preg_match('/^Q([AHN])(\d+)$/', $elem, $match)) {
 					$q_len = intval($match[2]);
 					if ($q_len < 4 || $q_len > 64) {
-						throw new Exception('Invalid OCRA suite data input question length: ' . var_export($q_len, TRUE));
+						throw new Exception('Invalid OCRA suite data input question length: '.var_export($q_len, TRUE));
 					}
 					$this->Q = TRUE;
 					$this->QType = $match[1];
 					$this->QLength = $q_len;
 				} else {
-					throw new Exception('Invalid OCRA suite data input question: ' . var_export($elem, TRUE));
+					throw new Exception('Invalid OCRA suite data input question: '.var_export($elem, TRUE));
 				}
 			} elseif ($letter === 'P') {
 				if (strlen($elem) == 1) {
@@ -124,7 +124,7 @@ 
 				} else {
 					$p_algo = substr($elem, 1);
 					if (!array_key_exists($p_algo, $this->supportedHashFunctions)) {
-						throw new Exception('Unsupported OCRA suite PIN hash function: ' . var_export($elem, TRUE));
+						throw new Exception('Unsupported OCRA suite PIN hash function: '.var_export($elem, TRUE));
 					}
 					$this->P = TRUE;
 					$this->PType = $p_algo;
@@ -136,13 +136,13 @@ 
 				} elseif (preg_match('/^S(\d+)$/', $elem, $match)) {
 					$s_len = intval($match[1]);
 					if ($s_len <= 0 || $s_len > 512) {
-						throw new Exception('Invalid OCRA suite data input session information length: ' . var_export($s_len, TRUE));
+						throw new Exception('Invalid OCRA suite data input session information length: '.var_export($s_len, TRUE));
 					}
 
 					$this->S = TRUE;
 					$this->SLength = $s_len;
 				} else {
-					throw new Exception('Invalid OCRA suite data input session information length: ' . var_export($elem, TRUE));
+					throw new Exception('Invalid OCRA suite data input session information length: '.var_export($elem, TRUE));
 				}
 			} elseif ($letter === 'T') {
 				if (strlen($elem) == 1) {
@@ -151,7 +151,7 @@ 
 					preg_match_all('/(\d+)([HMS])/', $elem, $match);
 
 					if (count($match[1]) !== count(array_unique($match[2]))) {
-						throw new Exception('Duplicate definitions in OCRA suite data input timestamp: ' . var_export($elem, TRUE));
+						throw new Exception('Duplicate definitions in OCRA suite data input timestamp: '.var_export($elem, TRUE));
 					}
 
 					$length = 0;
@@ -159,21 +159,21 @@ 
 						$length += intval($match[1][$i]) * $this->TPeriods[$match[2][$i]];
 					}
 					if ($length <= 0) {
-						throw new Exception('Invalid OCRA suite data input timestamp: ' . var_export($elem, TRUE));
+						throw new Exception('Invalid OCRA suite data input timestamp: '.var_export($elem, TRUE));
 					}
 
 					$this->T = TRUE;
 					$this->TLength = $length;
 				} else {
-					throw new Exception('Invalid OCRA suite data input timestamp: ' . var_export($elem, TRUE));
+					throw new Exception('Invalid OCRA suite data input timestamp: '.var_export($elem, TRUE));
 				}
 			} else {
-				throw new Exception('Unsupported OCRA suite data input field: ' . var_export($elem, TRUE));
+				throw new Exception('Unsupported OCRA suite data input field: '.var_export($elem, TRUE));
 			}
 		}
 
 		if (!$this->Q) {
-			throw new Exception('OCRA suite data input question not defined: ' . var_export($s[2], TRUE));
+			throw new Exception('OCRA suite data input question not defined: '.var_export($s[2], TRUE));
 		}
 	}
 
@@ -183,7 +183,7 @@ 
 
         $bytes = Tiqr_Random::randomBytes($q_length);
 
-		switch($q_type) {
+		switch ($q_type) {
 			case 'A':
 				$challenge = base64_encode($bytes);
 				$tr = implode("", unpack('H*', $bytes));
@@ -196,7 +196,7 @@ 
 				$challenge = implode("", unpack('N*', $bytes));
 				break;
 			default:
-				throw new Exception('Unsupported OCRASuite challenge type: ' . var_export($q_type, TRUE));
+				throw new Exception('Unsupported OCRASuite challenge type: '.var_export($q_type, TRUE));
 				break;
 		}
 
@@ -208,7 +208,7 @@ 
 
 	public function generateSessionInformation() {
 		if (!$this->S) {
-			throw new Exception('Session information not defined in OCRASuite: ' . var_export($this->OCRASuite, TRUE));
+			throw new Exception('Session information not defined in OCRASuite: '.var_export($this->OCRASuite, TRUE));
 		}
 
 		$s_length = $this->SLength;
@@ -238,7 +238,7 @@ 
 			$result &= ($s1[$i] == $s2[$i]);
 		}
 
-		return (boolean)$result;
+		return (boolean) $result;
 	}
 
 }

library/tiqr/Tiqr/Random.php

Spacing +1 added lines, -1 removed lines

@@ -39,7 +39,7 @@
     public static function randomBytes($length)
     {
         // Get $length cryptographically secure pseudo-random bytes
-        $rnd=\random_bytes($length);
+        $rnd = \random_bytes($length);
 
         if (strlen($rnd) !== $length) {
             throw new Exception("random_bytes did not return the requested number of bytes");

library/tiqr/Tiqr/StateStorage/Pdo.php

Spacing +5 added lines, -5 removed lines

@@ -72,9 +72,9 @@ 
      * (non-PHPdoc)
      * @see library/tiqr/Tiqr/StateStorage/Tiqr_StateStorage_Abstract::setValue()
      */
-    public function setValue($key, $value, $expire=0)
+    public function setValue($key, $value, $expire = 0)
     {
-        if (((float) rand() /(float) getrandmax()) < $this->cleanupProbability) {
+        if (((float) rand() / (float) getrandmax()) < $this->cleanupProbability) {
             $this->cleanExpired();
         }
         if ($this->keyExists($key)) {
@@ -84,9 +84,9 @@ 
         }
         // $expire == 0 means never expire
         if ($expire != 0) {
-            $expire+=time();    // Store unix timestamp after which the expires
+            $expire += time(); // Store unix timestamp after which the expires
         }
-        $sth->execute(array(serialize($value),$expire,$key));
+        $sth->execute(array(serialize($value), $expire, $key));
     }
         
     /**
@@ -110,7 +110,7 @@ 
             if (false === $sth) {
                 return NULL;
             }
-            if (false === $sth->execute(array($key, time())) ) {
+            if (false === $sth->execute(array($key, time()))) {
                 return NULL;
             }
             $result = $sth->fetchColumn();

library/tiqr/Tiqr/StateStorage.php

Spacing +4 added lines, -4 removed lines

@@ -43,7 +43,7 @@ 
      *                       options per type.
      * @throws Exception If an unknown type is requested.
      */
-    public static function getStorage($type="file", $options=array())
+    public static function getStorage($type = "file", $options = array())
     {
         switch ($type) {
             case "file":
@@ -69,7 +69,7 @@ 
                     }
                 }
 
-                $pdoInstance = new PDO($options['dsn'],$options['username'],$options['password']);
+                $pdoInstance = new PDO($options['dsn'], $options['username'], $options['password']);
                 // Set a hard-coded default for the probability the expired state is removed
                 // 0.1 translates to a 10% chance the garbage collection is executed
                 $cleanupProbability = 0.1;
@@ -84,9 +84,9 @@ 
                 if (!isset($type)) {
                     throw new Exception('Class name not set');
                 } elseif (!class_exists($type)) {
-                    throw new Exception('Class not found: ' . var_export($type, TRUE));
+                    throw new Exception('Class not found: '.var_export($type, TRUE));
                 } elseif (!is_subclass_of($type, 'Tiqr_StateStorage_Abstract')) {
-                    throw new Exception('Class ' . $type . ' not subclass of Tiqr_StateStorage_Abstract');
+                    throw new Exception('Class '.$type.' not subclass of Tiqr_StateStorage_Abstract');
                 }
                 $instance = new $type($options);
         }