diff --git a/ykval-checksum-clients b/ykval-checksum-clients
index d15a244..0143daf 100755
--- a/ykval-checksum-clients
+++ b/ykval-checksum-clients
@@ -30,18 +30,18 @@
 
 $verbose = 0;
 if (isset($argv[1])) {
-  if ($argv[1] == "-h" || $argv[1] == "--help") {
-    print "Usage: " . $argv[0] . " [-h|--help] [-v]\n";
-    exit(1);
-  }
+    if ($argv[1] == "-h" || $argv[1] == "--help") {
+        print "Usage: " . $argv[0] . " [-h|--help] [-v]\n";
+        exit(1);
+    }
 
-  if ($argv[1] && $argv[1] != "-v") {
-    print $argv[0] . ": invalid option -- '" . $argv[0] . "'\n";
-    print "Try `" . $argv[0] . " --help' for more information.\n";
-    exit(1);
-  }
+    if ($argv[1] && $argv[1] != "-v") {
+        print $argv[0] . ": invalid option -- '" . $argv[0] . "'\n";
+        print "Try `" . $argv[0] . " --help' for more information.\n";
+        exit(1);
+    }
 
-  $verbose = $argv[1] == "-v";
+    $verbose = $argv[1] == "-v";
 }
 
 set_include_path(implode(PATH_SEPARATOR, array(
@@ -59,30 +59,30 @@ $myLog = new Log($logname);
 $db = Db::GetDatabaseHandle($baseParams, $logname);
 
 if (!$db->connect()) {
-  $myLog->log(LOG_WARNING, "Could not connect to database");
-  exit(1);
+    $myLog->log(LOG_WARNING, "Could not connect to database");
+    exit(1);
 }
 
 $everything = "";
 $result=$db->customQuery("SELECT id, active, secret ".
-			 "FROM clients ".
-			 "ORDER BY id");
+                         "FROM clients ".
+                         "ORDER BY id");
 while($row = $db->fetchArray($result)) {
-  $active = $row['active'];
-  if ($active == "") {
-    # For some reason PostgreSQL returns empty strings for false values?!
-    $active = "0";
-  }
-  $everything .=
-    $row['id'] . "\t" . $active . "\t" .
-    $row['secret'] . "\n";
+    $active = $row['active'];
+    if ($active == "") {
+        # For some reason PostgreSQL returns empty strings for false values?!
+        $active = "0";
+    }
+    $everything .=
+                $row['id'] . "\t" . $active . "\t" .
+                $row['secret'] . "\n";
 }
 
 $db->closeCursor($result);
 $hash = sha1 ($everything);
 
 if ($verbose) {
-  print $everything;
+    print $everything;
 }
 print substr ($hash, 0, 10) . "\n";
 
diff --git a/ykval-checksum-deactivated b/ykval-checksum-deactivated
index 1d7e1c4..f0ce06f 100755
--- a/ykval-checksum-deactivated
+++ b/ykval-checksum-deactivated
@@ -30,18 +30,18 @@
 
 $verbose = 0;
 if (isset($argv[1])) {
-  if ($argv[1] == "-h" || $argv[1] == "--help") {
-    print "Usage: " . $argv[0] . " [-h|--help] [-v]\n";
-    exit(1);
-  }
+    if ($argv[1] == "-h" || $argv[1] == "--help") {
+        print "Usage: " . $argv[0] . " [-h|--help] [-v]\n";
+        exit(1);
+    }
 
-  if ($argv[1] && $argv[1] != "-v") {
-    print $argv[0] . ": invalid option -- '" . $argv[0] . "'\n";
-    print "Try `" . $argv[0] . " --help' for more information.\n";
-    exit(1);
-  }
+    if ($argv[1] && $argv[1] != "-v") {
+        print $argv[0] . ": invalid option -- '" . $argv[0] . "'\n";
+        print "Try `" . $argv[0] . " --help' for more information.\n";
+        exit(1);
+    }
 
-  $verbose = $argv[1] == "-v";
+    $verbose = $argv[1] == "-v";
 }
 
 set_include_path(implode(PATH_SEPARATOR, array(
@@ -59,24 +59,24 @@ $myLog = new Log($logname);
 $db = Db::GetDatabaseHandle($baseParams, $logname);
 
 if (!$db->connect()) {
-  $myLog->log(LOG_WARNING, "Could not connect to database");
-  exit(1);
+    $myLog->log(LOG_WARNING, "Could not connect to database");
+    exit(1);
 }
 
 $everything = "";
 $result=$db->customQuery("SELECT yk_publicname, yk_counter, yk_use ".
-			 "FROM yubikeys WHERE active = false ".
-			 "ORDER BY yk_publicname");
+                         "FROM yubikeys WHERE active = false ".
+                         "ORDER BY yk_publicname");
 while($row = $result->fetch(PDO::FETCH_ASSOC)) {
-  $everything .=
-    $row['yk_publicname'] . "\t" . $row['yk_counter'] . "\t" . $row['yk_use'] .
-    "\n";
+    $everything .=
+                $row['yk_publicname'] . "\t" . $row['yk_counter'] . "\t" . $row['yk_use'] .
+                "\n";
 }
 
 $hash = sha1 ($everything);
 
 if ($verbose) {
-  print $everything;
+    print $everything;
 }
 print substr ($hash, 0, 10) . "\n";
 
diff --git a/ykval-common.php b/ykval-common.php
index 632f65e..b09c733 100644
--- a/ykval-common.php
+++ b/ykval-common.php
@@ -53,104 +53,104 @@ define('INT32_LEN', 10);
 
 function logdie ($logger, $str)
 {
-	$logger->log(LOG_INFO, $str);
-	die($str . "\n");
+    $logger->log(LOG_INFO, $str);
+    die($str . "\n");
 }
 
 function getHttpVal ($key, $default, $a)
 {
-	if (array_key_exists($key, $a))
-	{
-		$val = $a[$key];
-	}
-	else
-	{
-		$val = $default;
-	}
+    if (array_key_exists($key, $a))
+    {
+        $val = $a[$key];
+    }
+    else
+    {
+        $val = $default;
+    }
 
-	$val = trim($val);
-	$val = str_replace('\\', '', $val);
+    $val = trim($val);
+    $val = str_replace('\\', '', $val);
 
-	return $val;
+    return $val;
 }
 
 // Verifies if a given string is modhex
 function is_modhex($s) {
-	if (preg_match('/^[cbdefghijklnrtuv]+$/', $s) === 0) {
-		return false;
-	} else {
-		return true;
-	}
+    if (preg_match('/^[cbdefghijklnrtuv]+$/', $s) === 0) {
+        return false;
+    } else {
+        return true;
+    }
 }
 
 // Verifies if a given string is a valid OTP
 function is_otp($otp) {
-	if ($otp == "") {
-		return false;
-	}
-	$otp_len = strlen($otp);
-	return $otp_len >= TOKEN_LEN && $otp_len <= OTP_MAX_LEN && is_modhex($otp);
+    if ($otp == "") {
+        return false;
+    }
+    $otp_len = strlen($otp);
+    return $otp_len >= TOKEN_LEN && $otp_len <= OTP_MAX_LEN && is_modhex($otp);
 }
 
 // Verifies if a given string is a valid public id
 function is_pubid($id) {
-	$id_len = strlen($id);
-	return $id_len >= 0 && $id_len <= PUBID_MAX_LEN && is_modhex($id);
+    $id_len = strlen($id);
+    return $id_len >= 0 && $id_len <= PUBID_MAX_LEN && is_modhex($id);
 }
 
 // Verifies a given string is a valid nonce
 function is_nonce($nonce) {
-	return strlen($nonce) >= NONCE_MIN_LEN
-		   && strlen($nonce) <= NONCE_MAX_LEN
-		   && ctype_alnum($nonce);
+    return strlen($nonce) >= NONCE_MIN_LEN
+                           && strlen($nonce) <= NONCE_MAX_LEN
+                           && ctype_alnum($nonce);
 }
 
 // Verifies if a given string is a valid client id
 function is_clientid($id) {
-	if ($id == "0") {
-		return false;
-	}
-	return strlen($id) <= INT32_LEN && ctype_digit($id);
+    if ($id == "0") {
+        return false;
+    }
+    return strlen($id) <= INT32_LEN && ctype_digit($id);
 }
 
 // Sign a http query string in the array of key-value pairs
 // return b64 encoded hmac hash
 function sign($a, $apiKey, $logger)
 {
-	ksort($a);
+    ksort($a);
 
-	$qs = http_build_query($a);
-	$qs = urldecode($qs);
-	$qs = utf8_encode($qs);
+    $qs = http_build_query($a);
+    $qs = urldecode($qs);
+    $qs = utf8_encode($qs);
 
-	// base64 encoded binary digest
-	$hmac = hash_hmac('sha1', $qs, $apiKey, TRUE);
-	$hmac = base64_encode($hmac);
+    // base64 encoded binary digest
+    $hmac = hash_hmac('sha1', $qs, $apiKey, TRUE);
+    $hmac = base64_encode($hmac);
 
-	$logger->log(LOG_DEBUG, "SIGN: $qs H=$hmac");
+    $logger->log(LOG_DEBUG, "SIGN: $qs H=$hmac");
 
-	return $hmac;
+    return $hmac;
 }
 
 function curl_settings($logger, $ident, $ch, $url, $timeout, $opts)
 {
-	$logger->log(LOG_DEBUG, "$ident adding URL : $url");
+    $logger->log(LOG_DEBUG, "$ident adding URL : $url");
 
-	curl_setopt($ch, CURLOPT_URL, $url);
-	curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
-	curl_setopt($ch, CURLOPT_USERAGENT, 'YK-VAL');
-	curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
-	curl_setopt($ch, CURLOPT_FAILONERROR, TRUE);
+    curl_setopt($ch, CURLOPT_URL, $url);
+    curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
+    curl_setopt($ch, CURLOPT_USERAGENT, 'YK-VAL');
+    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
+    curl_setopt($ch, CURLOPT_FAILONERROR, TRUE);
 
-	if (is_array($opts) === FALSE)
-	{
-		$logger->log(LOG_WARN, $ident . 'curl options must be an array');
-		return;
-	}
+    if (is_array($opts) === FALSE)
+    {
+        $logger->log(LOG_WARN, $ident . 'curl options must be an array');
+        return;
+    }
 
-	foreach ($opts as $key => $val)
-		if (curl_setopt($ch, $key, $val) === FALSE)
-			$logger->log(LOG_WARN, "$ident failed to set " . curl_opt_name($key));
+    foreach ($opts as $key => $val)
+        if (curl_setopt($ch, $key, $val) === FALSE)
+            $logger->log(LOG_WARN, "$ident failed to set " . curl_opt_name($key));
 }
 
 // returns the string name of a curl constant,
@@ -160,16 +160,16 @@ function curl_settings($logger, $ident, $ch, $url, $timeout, $opts)
 //  curl_opt_name(CURLOPT_BLABLA) returns "curl option"
 function curl_opt_name($opt)
 {
-	$consts = get_defined_constants(true);
-	$consts = $consts['curl'];
+    $consts = get_defined_constants(true);
+    $consts = $consts['curl'];
 
-	$name = array_search($opt, $consts, TRUE);
+    $name = array_search($opt, $consts, TRUE);
 
-	// array_search may return either on failure...
-	if ($name === FALSE || $name === NULL)
-		return 'curl option';
+    // array_search may return either on failure...
+    if ($name === FALSE || $name === NULL)
+        return 'curl option';
 
-	return $name;
+    return $name;
 }
 
 // This function takes a list of URLs.  It will return the content of
@@ -181,164 +181,164 @@ function curl_opt_name($opt)
 // (defaults to ^OK) is returned, or if all URLs failed, false.
 function retrieveURLasync($ident, $urls, $logger, $ans_req=1, $match="^OK", $returl=False, $timeout=10, $curlopts)
 {
-	$mh = curl_multi_init();
-	$ch = array();
+    $mh = curl_multi_init();
+    $ch = array();
 
-	foreach ($urls as $url)
-	{
-		$handle = curl_init();
-		curl_settings($logger, $ident, $handle, $url, $timeout, $curlopts);
-		curl_multi_add_handle($mh, $handle);
-		$ch[(int) $handle] = $handle;
-	}
+    foreach ($urls as $url)
+    {
+        $handle = curl_init();
+        curl_settings($logger, $ident, $handle, $url, $timeout, $curlopts);
+        curl_multi_add_handle($mh, $handle);
+        $ch[(int) $handle] = $handle;
+    }
 
-	$ans_arr = array();
+    $ans_arr = array();
 
-	do
-	{
-		while (curl_multi_exec($mh, $active) == CURLM_CALL_MULTI_PERFORM);
+    do
+    {
+        while (curl_multi_exec($mh, $active) == CURLM_CALL_MULTI_PERFORM);
 
-		while ($info = curl_multi_info_read($mh))
-		{
-			$logger->log(LOG_DEBUG, "$ident curl multi info : ", $info);
+        while ($info = curl_multi_info_read($mh))
+        {
+            $logger->log(LOG_DEBUG, "$ident curl multi info : ", $info);
 
-			if ($info['result'] == CURLE_OK)
-			{
-				$str = curl_multi_getcontent($info['handle']);
+            if ($info['result'] == CURLE_OK)
+            {
+                $str = curl_multi_getcontent($info['handle']);
 
-				$logger->log(LOG_DEBUG, "$ident curl multi content : $str");
+                $logger->log(LOG_DEBUG, "$ident curl multi content : $str");
 
-				if (preg_match("/$match/", $str))
-				{
-					$logger->log(LOG_DEBUG, "$ident response matches $match");
-					$error = curl_error($info['handle']);
-					$errno = curl_errno($info['handle']);
-					$cinfo = curl_getinfo($info['handle']);
-					$logger->log(LOG_INFO, "$ident errno/error: $errno/$error", $cinfo);
+                if (preg_match("/$match/", $str))
+                {
+                    $logger->log(LOG_DEBUG, "$ident response matches $match");
+                    $error = curl_error($info['handle']);
+                    $errno = curl_errno($info['handle']);
+                    $cinfo = curl_getinfo($info['handle']);
+                    $logger->log(LOG_INFO, "$ident errno/error: $errno/$error", $cinfo);
 
-					if ($returl)
-						$ans_arr[] = "url=" . $cinfo['url'] . "\n" . $str;
-					else
-						$ans_arr[] = $str;
-				}
+                    if ($returl)
+                        $ans_arr[] = "url=" . $cinfo['url'] . "\n" . $str;
+                    else
+                        $ans_arr[] = $str;
+                }
 
-				if (count($ans_arr) >= $ans_req)
-				{
-					foreach ($ch as $h)
-					{
-						curl_multi_remove_handle($mh, $h);
-						curl_close($h);
-					}
-					curl_multi_close($mh);
+                if (count($ans_arr) >= $ans_req)
+                {
+                    foreach ($ch as $h)
+                    {
+                        curl_multi_remove_handle($mh, $h);
+                        curl_close($h);
+                    }
+                    curl_multi_close($mh);
 
-					return $ans_arr;
-				}
+                    return $ans_arr;
+                }
 
-				curl_multi_remove_handle($mh, $info['handle']);
-				curl_close($info['handle']);
-				unset($ch[(int) $info['handle']]);
-			}
+                curl_multi_remove_handle($mh, $info['handle']);
+                curl_close($info['handle']);
+                unset($ch[(int) $info['handle']]);
+            }
 
-			curl_multi_select($mh);
-		}
-	}
-	while($active);
+            curl_multi_select($mh);
+        }
+    }
+    while($active);
 
-	foreach ($ch as $h)
-	{
-		curl_multi_remove_handle($mh, $h);
-		curl_close($h);
-	}
-	curl_multi_close($mh);
+    foreach ($ch as $h)
+    {
+        curl_multi_remove_handle($mh, $h);
+        curl_close($h);
+    }
+    curl_multi_close($mh);
 
-	if (count($ans_arr) > 0)
-		return $ans_arr;
+    if (count($ans_arr) > 0)
+        return $ans_arr;
 
-	return false;
+    return false;
 }
 
 function KSMdecryptOTP($urls, $logger, $curlopts)
 {
-	$response = retrieveURLasync('YK-KSM', $urls, $logger, $ans_req=1, $match='^OK', $returl=False, $timeout=10, $curlopts);
+    $response = retrieveURLasync('YK-KSM', $urls, $logger, $ans_req=1, $match='^OK', $returl=False, $timeout=10, $curlopts);
 
-	if ($response === FALSE)
-		return false;
+    if ($response === FALSE)
+        return false;
 
-	$response = array_shift($response);
+    $response = array_shift($response);
 
-	$logger->log(LOG_DEBUG, "YK-KSM response: $response");
+    $logger->log(LOG_DEBUG, "YK-KSM response: $response");
 
-	$ret = array();
+    $ret = array();
 
-	if (sscanf($response,
-		'OK counter=%04x low=%04x high=%02x use=%02x',
-		$ret['session_counter'],
-		$ret['low'],
-		$ret['high'],
-		$ret['session_use']) !== 4)
-	{
-		return false;
-	}
+    if (sscanf($response,
+               'OK counter=%04x low=%04x high=%02x use=%02x',
+               $ret['session_counter'],
+               $ret['low'],
+               $ret['high'],
+               $ret['session_use']) !== 4)
+    {
+        return false;
+    }
 
-	return $ret;
+    return $ret;
 }
 
 function sendResp($status, $logger, $apiKey = '', $extra = null)
 {
-	if ($logger->request !== NULL)
-		$logger->request->set('status', $status);
+    if ($logger->request !== NULL)
+        $logger->request->set('status', $status);
 
-	$a['status'] = $status;
+    $a['status'] = $status;
 
-	// 2008-11-21T06:11:55Z0711
-	$t = substr(microtime(false), 2, 3);
-	$t = gmdate('Y-m-d\TH:i:s\Z0') . $t;
+    // 2008-11-21T06:11:55Z0711
+    $t = substr(microtime(false), 2, 3);
+    $t = gmdate('Y-m-d\TH:i:s\Z0') . $t;
 
-	$a['t'] = $t;
+    $a['t'] = $t;
 
-	if ($extra)
-		foreach ($extra as $param => $value)
-			$a[$param] = $value;
+    if ($extra)
+        foreach ($extra as $param => $value)
+            $a[$param] = $value;
 
-	$h = sign($a, $apiKey, $logger);
+    $h = sign($a, $apiKey, $logger);
 
-	$str = "";
-	$str .= "h=" . $h . "\r\n";
-	$str .= "t=" . $a['t'] . "\r\n";
+    $str = "";
+    $str .= "h=" . $h . "\r\n";
+    $str .= "t=" . $a['t'] . "\r\n";
 
-	if ($extra)
-		foreach ($extra as $param => $value)
-			$str .= $param . "=" . $value . "\r\n";
+    if ($extra)
+        foreach ($extra as $param => $value)
+            $str .= $param . "=" . $value . "\r\n";
 
-	$str .= "status=" . $a['status'] . "\r\n";
-	$str .= "\r\n";
+    $str .= "status=" . $a['status'] . "\r\n";
+    $str .= "\r\n";
 
-	$logger->log(LOG_INFO, "Response: " . $str . " (at " . gmdate("c") . " " . microtime() . ")");
+    $logger->log(LOG_INFO, "Response: " . $str . " (at " . gmdate("c") . " " . microtime() . ")");
 
-	if ($logger->request !== NULL)
-		$logger->request->write();
+    if ($logger->request !== NULL)
+        $logger->request->write();
 
-	echo $str;
-	exit;
+    echo $str;
+    exit;
 }
 
 // backport from PHP 5.6
 if (function_exists('hash_equals') === FALSE)
 {
-	function hash_equals($a, $b)
-	{
-		// hashes are a (known) fixed length,
-		//	so this doesn't leak anything.
-		if (strlen($a) != strlen($b))
-			return false;
+    function hash_equals($a, $b)
+    {
+        // hashes are a (known) fixed length,
+        //	so this doesn't leak anything.
+        if (strlen($a) != strlen($b))
+            return false;
 
-		$result = 0;
+        $result = 0;
 
-		for ($i = 0; $i < strlen($a); $i++)
-			$result |= ord($a[$i]) ^ ord($b[$i]);
+        for ($i = 0; $i < strlen($a); $i++)
+            $result |= ord($a[$i]) ^ ord($b[$i]);
 
-		return (0 === $result);
-	}
+        return (0 === $result);
+    }
 }
 
 /**
@@ -349,33 +349,33 @@ if (function_exists('hash_equals') === FALSE)
  */
 function total_time ($url)
 {
-	$opts = array(
-		CURLOPT_URL => $url,
-		CURLOPT_TIMEOUT => 3,
-		CURLOPT_FORBID_REUSE => TRUE,
-		CURLOPT_FRESH_CONNECT => TRUE,
-		CURLOPT_RETURNTRANSFER => TRUE,
-		CURLOPT_USERAGENT => 'ykval-munin-vallatency/1.0',
-	);
+    $opts = array(
+        CURLOPT_URL => $url,
+        CURLOPT_TIMEOUT => 3,
+        CURLOPT_FORBID_REUSE => TRUE,
+        CURLOPT_FRESH_CONNECT => TRUE,
+        CURLOPT_RETURNTRANSFER => TRUE,
+        CURLOPT_USERAGENT => 'ykval-munin-vallatency/1.0',
+    );
 
-	if (($ch = curl_init()) === FALSE)
-		return false;
+    if (($ch = curl_init()) === FALSE)
+        return false;
 
-	if (curl_setopt_array($ch, $opts) === FALSE)
-		return false;
+    if (curl_setopt_array($ch, $opts) === FALSE)
+        return false;
 
-	// we don't care about the actual response
-	if (curl_exec($ch) === FALSE)
-		return false;
+    // we don't care about the actual response
+    if (curl_exec($ch) === FALSE)
+        return false;
 
-	$total_time = curl_getinfo($ch, CURLINFO_TOTAL_TIME);
+    $total_time = curl_getinfo($ch, CURLINFO_TOTAL_TIME);
 
-	curl_close($ch);
+    curl_close($ch);
 
-	if (is_float($total_time) === FALSE)
-		return false;
+    if (is_float($total_time) === FALSE)
+        return false;
 
-	return $total_time;
+    return $total_time;
 }
 
 /**
@@ -386,38 +386,38 @@ function total_time ($url)
  */
 function endpoints ($urls)
 {
-	$endpoints = array();
+    $endpoints = array();
 
-	foreach ($urls as $url)
-	{
-		// internal munin name must be a-zA-Z0-9_,
-		//	so sha1 hex should be fine.
-		//
-		// munin also truncates at some length,
-		//	so we just take the first few characters of the hashsum.
-		$internal = substr(sha1($url), 0, 20);
+    foreach ($urls as $url)
+    {
+        // internal munin name must be a-zA-Z0-9_,
+        //	so sha1 hex should be fine.
+        //
+        // munin also truncates at some length,
+        //	so we just take the first few characters of the hashsum.
+        $internal = substr(sha1($url), 0, 20);
 
-		// actual label name shown for graph values
-		if (($label = hostport($url)) === FALSE)
-		{
-			return false;
-		}
+        // actual label name shown for graph values
+        if (($label = hostport($url)) === FALSE)
+        {
+            return false;
+        }
 
-		$endpoints[] = array($internal, $label, $url);
-	}
+        $endpoints[] = array($internal, $label, $url);
+    }
 
-	// check for truncated sha1 collisions (or actual duplicate URLs!)
-	$internal = array();
+    // check for truncated sha1 collisions (or actual duplicate URLs!)
+    $internal = array();
 
-	foreach($endpoints as $endpoint)
-	{
-		$internal[] = $endpoint[0];
-	}
+    foreach($endpoints as $endpoint)
+    {
+        $internal[] = $endpoint[0];
+    }
 
-	if (count(array_unique($internal)) !== count($endpoints))
-		return false;
+    if (count(array_unique($internal)) !== count($endpoints))
+        return false;
 
-	return $endpoints;
+    return $endpoints;
 }
 
 /**
@@ -430,22 +430,22 @@ function endpoints ($urls)
  */
 function hostport ($url)
 {
-	if (($url = parse_url($url)) === FALSE)
-		return false;
+    if (($url = parse_url($url)) === FALSE)
+        return false;
 
-	if (array_key_exists('host', $url) === FALSE || $url['host'] === NULL)
-		return false;
+    if (array_key_exists('host', $url) === FALSE || $url['host'] === NULL)
+        return false;
 
-	if (array_key_exists('port', $url) === TRUE && $url['port'] !== NULL)
-		return $url['host'].':'.$url['port'];
+    if (array_key_exists('port', $url) === TRUE && $url['port'] !== NULL)
+        return $url['host'].':'.$url['port'];
 
-	if (array_key_exists('scheme', $url) === TRUE
-			&& strtolower($url['scheme']) === 'http')
-		return $url['host'].':80';
+    if (array_key_exists('scheme', $url) === TRUE
+        && strtolower($url['scheme']) === 'http')
+        return $url['host'].':80';
 
-	if (array_key_exists('scheme', $url) === TRUE
-			&& strtolower($url['scheme']) === 'https')
-		return $url['host'].':443';
+    if (array_key_exists('scheme', $url) === TRUE
+        && strtolower($url['scheme']) === 'https')
+        return $url['host'].':443';
 
-	return $url['host'];
+    return $url['host'];
 }
diff --git a/ykval-config.php b/ykval-config.php
index 5052f17..5c369f8 100644
--- a/ykval-config.php
+++ b/ykval-config.php
@@ -36,17 +36,17 @@ $dbfile = '/etc/yubico/val/config-db.php';
 
 if (file_exists($dbfile) && @is_readable($dbfile))
 {
-	require_once $dbfile;
+    require_once $dbfile;
 }
 else
 {
-	// FIXME hostname
-	// FIXME port
-	// 'oci:oracledb' for Oracle DB (with OCI library)
-	$dbtype = 'mysql';
-	$dbuser = 'ykval_verifier';
-	$dbpass = 'yourpassword';
-	$dbname = 'ykval';
+    // FIXME hostname
+    // FIXME port
+    // 'oci:oracledb' for Oracle DB (with OCI library)
+    $dbtype = 'mysql';
+    $dbuser = 'ykval_verifier';
+    $dbpass = 'yourpassword';
+    $dbname = 'ykval';
 }
 
 // for the validation interface.
@@ -58,9 +58,9 @@ $baseParams['__YKVAL_DB_OPTIONS__'] = array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EX
 
 // for the validation server sync
 $baseParams['__YKVAL_SYNC_POOL__'] = array(
-	// "https://api2.example.com/wsapi/2.0/sync",
-	// "https://api3.example.com/wsapi/2.0/sync",
-	// "https://api4.example.com/wsapi/2.0/sync",
+    // "https://api2.example.com/wsapi/2.0/sync",
+    // "https://api3.example.com/wsapi/2.0/sync",
+    // "https://api4.example.com/wsapi/2.0/sync",
 );
 
 /**
@@ -70,12 +70,12 @@ $baseParams['__YKVAL_SYNC_POOL__'] = array(
  *	Both IPv4 and IPv6 are supported.
  */
 $baseParams['__YKVAL_ALLOWED_SYNC_POOL__'] = array(
-	// "1.2.3.4",
-	// "2.3.4.5",
-	// "3.4.5.6",
-	// "fc00:aaaa::",
-	// "fc00:bbbb::",
-	// "fc00:cccc::",
+    // "1.2.3.4",
+    // "2.3.4.5",
+    // "3.4.5.6",
+    // "fc00:aaaa::",
+    // "fc00:bbbb::",
+    // "fc00:cccc::",
 );
 
 // An array of IP addresses allowed to issue YubiKey activation/deactivation
@@ -103,33 +103,33 @@ $baseParams['__YKVAL_SYNC_DEFAULT_TIMEOUT__'] = 1;
 // A key -> value array with curl options to set
 //  when calling URLs defined in __YKVAL_SYNC_POOL__
 $baseParams['__YKVAL_SYNC_CURL_OPTS__'] = array(
-	//CURLOPT_PROTOCOLS => CURLPROTO_HTTP,
+    //CURLOPT_PROTOCOLS => CURLPROTO_HTTP,
 );
 
 // A key -> value array with curl options to set
 //  when calling URLs returned by otp2ksmurls()
 $baseParams['__YKVAL_KSM_CURL_OPTS__'] = array(
-	//CURLOPT_PROTOCOLS => CURLPROTO_HTTP,
+    //CURLOPT_PROTOCOLS => CURLPROTO_HTTP,
 );
 
 // Returns an array of YK-KSM URLs for decrypting $otp for $client.
 // The URLs must be fully qualified, i.e., containing the OTP itself.
 function otp2ksmurls ($otp, $client)
 {
-	//if ($client == 42) {
-	//  return array("https://another-ykksm.example.com/wsapi/decrypt?otp=$otp");
-	//}
+    //if ($client == 42) {
+    //  return array("https://another-ykksm.example.com/wsapi/decrypt?otp=$otp");
+    //}
 
-	//if (preg_match("/^dteffujehknh/", $otp)) {
-	//  return array("https://different-ykksm.example.com/wsapi/decrypt?otp=$otp");
-	//}
+    //if (preg_match("/^dteffujehknh/", $otp)) {
+    //  return array("https://different-ykksm.example.com/wsapi/decrypt?otp=$otp");
+    //}
 
-	return array(
-		// "https://ykksm1.example.com/wsapi/decrypt?otp=$otp",
-		// "https://ykksm2.example.com/wsapi/decrypt?otp=$otp",
-		"http://127.0.0.1:80/wsapi/decrypt?otp=$otp",
-		"http://127.0.0.1:8002/wsapi/decrypt?otp=$otp",
-	);
+    return array(
+        // "https://ykksm1.example.com/wsapi/decrypt?otp=$otp",
+        // "https://ykksm2.example.com/wsapi/decrypt?otp=$otp",
+        "http://127.0.0.1:80/wsapi/decrypt?otp=$otp",
+        "http://127.0.0.1:8002/wsapi/decrypt?otp=$otp",
+    );
 }
 
 /**
diff --git a/ykval-db-oci.php b/ykval-db-oci.php
index ea97f06..1c5c82b 100644
--- a/ykval-db-oci.php
+++ b/ykval-db-oci.php
@@ -36,224 +36,224 @@ require_once('ykval-db.php');
 
 class DbImpl extends Db
 {
-  /**
-   * Constructor
-   *
-   * @param string $host Database host
-   * @param string $user Database user
-   * @param string $pwd  Database password
-   * @param string $name Database table name
-   * @return void
-   *
-   */
-  public function __construct($db_dsn, $db_username, $db_password, $db_options, $name='ykval-db')
-  {
-    $this->db_dsn=$db_dsn;
-    $this->db_username=$db_username;
-    $this->db_password=$db_password;
-    $this->db_options=$db_options;
+    /**
+     * Constructor
+     *
+     * @param string $host Database host
+     * @param string $user Database user
+     * @param string $pwd  Database password
+     * @param string $name Database table name
+     * @return void
+     *
+     */
+    public function __construct($db_dsn, $db_username, $db_password, $db_options, $name='ykval-db')
+    {
+        $this->db_dsn=$db_dsn;
+        $this->db_username=$db_username;
+        $this->db_password=$db_password;
+        $this->db_options=$db_options;
 
-    if(substr($db_dsn, 0, 4) == 'oci:') {
-      # "oci:" prefix needs to be removed before passing db_dsn to OCI
-      $this->db_dsn = substr($this->db_dsn, 4);
-    }
-
-    $this->myLog=new Log($name);
-  }
-
-  /**
-   * function to connect to database defined in config.php
-   *
-   * @return boolean True on success, otherwise false.
-   *
-   */
-  public function connect(){
-    $this->dbh = oci_connect($this->db_username, $this->db_password, $this->db_dsn);
-    if (!$this->dbh) {
-      $error = oci_error();
-      $this->myLog->log(LOG_CRIT, "Database connection error: " . $error["message"]);
-      $this->dbh=Null;
-      return false;
-    }
-    return true;
-  }
-
-  protected function query($query, $returnresult=false) {
-    if(!$this->isConnected()) {
-      $this->connect();
-    }
-    if($this->isConnected()) {
-      $this->myLog->log(LOG_DEBUG, 'DB query is: ' . $query);
-      # OCI mode
-      $result = oci_parse($this->dbh, $query);
-      if(!oci_execute($result)) {
-	$this->myLog->log(LOG_INFO, 'Database query error: ' . preg_replace('/\n/',' ',print_r(oci_error($result), true)));
-	$this->dbh = Null;
-	return false;
-      }
-      $this->result = $result;
-      if ($returnresult) return $this->result;
-      else return true;
-    } else {
-      $this->myLog->log(LOG_CRIT, 'No database connection');
-      return false;
-    }
-  }
-
-  /**
-   * function to get a row from the query result
-   * Once all rows have been fetch, function closeCursor needs to be called
-   *
-   * @param object $result Query result object or null to use the current one
-   * @return array a query row
-   *
-   */
-  public function fetchArray($result=null){
-    if(!$result) $result = $this->result;
-    if(!$result) return null;
-
-    $res = oci_fetch_array($result, OCI_ASSOC);
-    return array_change_key_case($res, CASE_LOWER);
-  }
-
-  /**
-   * function to close the cursor after having fetched rows
-   *
-   * @param object $result Query result object or null to use the current one
-   *
-   */
-  public function closeCursor($result=null){
-  }
-
-  /**
-   * main function used to get rows by multiple key=>value pairs from Db table.
-   *
-   * @param string $table Database table to update row in
-   * @param array $where Array with column=>values to select rows by
-   * @param int $nr Number of rows to collect. NULL=>inifinity. Default=NULL.
-   * @param int $rev rev=1 indicates order should be reversed. Default=NULL.
-   * @param string distinct Select rows with distinct columns, Default=NULL
-   * @return mixed Array with values from Db row or 2d-array with multiple rows
-   *
-   */
-  public function findByMultiple($table, $where, $nr=null, $rev=null, $distinct=null)
-  {
-    $value=""; /* quiet the PHP Notice */
-    $match=null; /* quiet the PHP Notice */
-    $query="SELECT";
-
-    if($nr!=null){
-       # LIMIT doesn't exist in Oracle, so we encapsulate the query to be
-       # able to filter a given number of rows afterwars (after ordering)
-       $query.= " * FROM (SELECT";
-    }
-
-    if ($distinct!=null) {
-      $query.= " DISTINCT " . $distinct;
-    } else {
-      $query.= " *";
-    }
-    $query.= " FROM " . $table;
-    if ($where!=null){
-      foreach ($where as $key=>$value) {
-        if ($key != 'server' && !(ctype_alnum($value) || is_null($value)))
-				{
-          $this->myLog->log(LOG_WARNING, "findByMultiple: attempted to use non-alphanumeric in WHERE: " . $table . "." . $key . " = " . $value);
-          return false;
+        if(substr($db_dsn, 0, 4) == 'oci:') {
+            # "oci:" prefix needs to be removed before passing db_dsn to OCI
+            $this->db_dsn = substr($this->db_dsn, 4);
         }
-        elseif ($key == 'server' && !filter_var($value, FILTER_VALIDATE_URL))
-        {
-          $this->myLog->log(LOG_WARNING, "findByMultiple: attempted use invalid URL in WHERE: " . $table . "." . $key . " = " . $value);
-          return false;
+
+        $this->myLog=new Log($name);
+    }
+
+    /**
+     * function to connect to database defined in config.php
+     *
+     * @return boolean True on success, otherwise false.
+     *
+     */
+    public function connect(){
+        $this->dbh = oci_connect($this->db_username, $this->db_password, $this->db_dsn);
+        if (!$this->dbh) {
+            $error = oci_error();
+            $this->myLog->log(LOG_CRIT, "Database connection error: " . $error["message"]);
+            $this->dbh=Null;
+            return false;
         }
-        if ($key!=null) {
-          if ($value!=null) $match.= " ". $key . " = '" . $value . "' and";
-          else $match.= " ". $key . " is NULL and";
+        return true;
+    }
+
+    protected function query($query, $returnresult=false) {
+        if(!$this->isConnected()) {
+            $this->connect();
         }
-      }
-      if ($match!=null) $query .= " WHERE" . $match;
-      $query=rtrim($query, "and");
-      $query=rtrim($query);
-    }
-    if ($rev==1) $query.= " ORDER BY id DESC";
-    if ($nr!=null) {
-      $query .= ") WHERE rownum < " . ($nr+1);
-    }
-
-    $result = $this->query($query, true);
-    if (!$result) return false;
-
-    if ($nr==1) {
-      $row = $this->fetchArray($result);
-      $this->closeCursor($result);
-      return $row;
-    }
-    else {
-      $collection=array();
-      while($row = $this->fetchArray($result)){
-	$collection[]=$row;
-      }
-      $this->closeCursor($result);
-      return $collection;
-    }
-  }
-
-  /**
-   * main function used to delete rows by multiple key=>value pairs from Db table.
-   *
-   * @param string $table Database table to delete row in
-   * @param array $where Array with column=>values to select rows by
-   * @param int $nr Number of rows to collect. NULL=>inifinity. Default=NULL.
-   * @param int $rev rev=1 indicates order should be reversed. Default=NULL.
-   * @param string distinct Select rows with distinct columns, Default=NULL
-   * @return boolean True on success, otherwise false.
-   *
-   */
-  public function deleteByMultiple($table, $where, $nr=null, $rev=null)
-  {
-    $query="DELETE";
-    $query.= " FROM " . $table;
-    $query .= " WHERE id IN (SELECT id FROM " . $table;
-    if ($where!=null){
-      $query.= " WHERE";
-      foreach ($where as $key=>$value) {
-				if ($key != 'server' && !ctype_alnum($value))
-				{
-					$this->myLog->log(LOG_WARNING, "deleteByMultiple: attempted to write non-alphanumeric to the database: " . $value);
-					return false;
+        if($this->isConnected()) {
+            $this->myLog->log(LOG_DEBUG, 'DB query is: ' . $query);
+            # OCI mode
+            $result = oci_parse($this->dbh, $query);
+            if(!oci_execute($result)) {
+                $this->myLog->log(LOG_INFO, 'Database query error: ' . preg_replace('/\n/',' ',print_r(oci_error($result), true)));
+                $this->dbh = Null;
+                return false;
+            }
+            $this->result = $result;
+            if ($returnresult) return $this->result;
+            else return true;
+        } else {
+            $this->myLog->log(LOG_CRIT, 'No database connection');
+            return false;
         }
-        elseif ($key == 'server' && !filter_var($value, FILTER_VALIDATE_URL))
-        {
-          $this->myLog->log(LOG_WARNING, "deleteByMultiple: attempted to write invalid URL to the database: " . $value);
-          return false;
+    }
+
+    /**
+     * function to get a row from the query result
+     * Once all rows have been fetch, function closeCursor needs to be called
+     *
+     * @param object $result Query result object or null to use the current one
+     * @return array a query row
+     *
+     */
+    public function fetchArray($result=null){
+        if(!$result) $result = $this->result;
+        if(!$result) return null;
+
+        $res = oci_fetch_array($result, OCI_ASSOC);
+        return array_change_key_case($res, CASE_LOWER);
+    }
+
+    /**
+     * Function to close the cursor after having fetched rows
+     *
+     * @param object $result Query result object or null to use the current one
+     *
+     */
+    public function closeCursor($result=null){
+    }
+
+    /**
+     * main function used to get rows by multiple key=>value pairs from Db table.
+     *
+     * @param string $table Database table to update row in
+     * @param array $where Array with column=>values to select rows by
+     * @param int $nr Number of rows to collect. NULL=>inifinity. Default=NULL.
+     * @param int $rev rev=1 indicates order should be reversed. Default=NULL.
+     * @param string distinct Select rows with distinct columns, Default=NULL
+     * @return mixed Array with values from Db row or 2d-array with multiple rows
+     *
+     */
+    public function findByMultiple($table, $where, $nr=null, $rev=null, $distinct=null)
+    {
+        $value=""; /* quiet the PHP Notice */
+        $match=null; /* quiet the PHP Notice */
+        $query="SELECT";
+
+        if($nr!=null){
+            # LIMIT doesn't exist in Oracle, so we encapsulate the query to be
+            # able to filter a given number of rows afterwars (after ordering)
+            $query.= " * FROM (SELECT";
+        }
+
+        if ($distinct!=null) {
+            $query.= " DISTINCT " . $distinct;
+        } else {
+            $query.= " *";
+        }
+        $query.= " FROM " . $table;
+        if ($where!=null){
+            foreach ($where as $key=>$value) {
+                if ($key != 'server' && !(ctype_alnum($value) || is_null($value)))
+                {
+                    $this->myLog->log(LOG_WARNING, "findByMultiple: attempted to use non-alphanumeric in WHERE: " . $table . "." . $key . " = " . $value);
+                    return false;
+                }
+                elseif ($key == 'server' && !filter_var($value, FILTER_VALIDATE_URL))
+                {
+                    $this->myLog->log(LOG_WARNING, "findByMultiple: attempted use invalid URL in WHERE: " . $table . "." . $key . " = " . $value);
+                    return false;
+                }
+                if ($key!=null) {
+                    if ($value!=null) $match.= " ". $key . " = '" . $value . "' and";
+                    else $match.= " ". $key . " is NULL and";
+                }
+            }
+            if ($match!=null) $query .= " WHERE" . $match;
+            $query=rtrim($query, "and");
+            $query=rtrim($query);
+        }
+        if ($rev==1) $query.= " ORDER BY id DESC";
+        if ($nr!=null) {
+            $query .= ") WHERE rownum < " . ($nr+1);
+        }
+
+        $result = $this->query($query, true);
+        if (!$result) return false;
+
+        if ($nr==1) {
+            $row = $this->fetchArray($result);
+            $this->closeCursor($result);
+            return $row;
+        }
+        else {
+            $collection=array();
+            while($row = $this->fetchArray($result)){
+                $collection[]=$row;
+            }
+            $this->closeCursor($result);
+            return $collection;
         }
-	      $query.= " ". $key . " = '" . $value . "' and";
-      }
-      $query=rtrim($query, "and");
-      $query=rtrim($query);
     }
-    if ($rev==1) $query.= " ORDER BY id DESC";
 
-    $query .= ")";
-    if ($nr!=null) $query.= " and rownum < " . ($nr+1);
+    /**
+     * main function used to delete rows by multiple key=>value pairs from Db table.
+     *
+     * @param string $table Database table to delete row in
+     * @param array $where Array with column=>values to select rows by
+     * @param int $nr Number of rows to collect. NULL=>inifinity. Default=NULL.
+     * @param int $rev rev=1 indicates order should be reversed. Default=NULL.
+     * @param string distinct Select rows with distinct columns, Default=NULL
+     * @return boolean True on success, otherwise false.
+     *
+     */
+    public function deleteByMultiple($table, $where, $nr=null, $rev=null)
+    {
+        $query="DELETE";
+        $query.= " FROM " . $table;
+        $query .= " WHERE id IN (SELECT id FROM " . $table;
+        if ($where!=null){
+            $query.= " WHERE";
+            foreach ($where as $key=>$value) {
+                if ($key != 'server' && !ctype_alnum($value))
+                {
+                    $this->myLog->log(LOG_WARNING, "deleteByMultiple: attempted to write non-alphanumeric to the database: " . $value);
+                    return false;
+                }
+                elseif ($key == 'server' && !filter_var($value, FILTER_VALIDATE_URL))
+                {
+                    $this->myLog->log(LOG_WARNING, "deleteByMultiple: attempted to write invalid URL to the database: " . $value);
+                    return false;
+                }
+                $query.= " ". $key . " = '" . $value . "' and";
+            }
+            $query=rtrim($query, "and");
+            $query=rtrim($query);
+        }
+        if ($rev==1) $query.= " ORDER BY id DESC";
 
-    return $this->query($query, false);
-  }
+        $query .= ")";
+        if ($nr!=null) $query.= " and rownum < " . ($nr+1);
 
-  /**
-   * Function to get the number of rows
-   *
-   * @param object $result Query result object or null to use the current one
-   * @return int number of rows affected by last statement or 0 if database connection is not functional.
-   *
-   */
-  public function rowCount($result=null)
-  {
-    if(!$result) $result = $this->result;
-    if($result) {
-      return oci_num_rows($result);
-    } else {
-      return 0;
+        return $this->query($query, false);
+    }
+
+    /**
+     * Function to get the number of rows
+     *
+     * @param object $result Query result object or null to use the current one
+     * @return int number of rows affected by last statement or 0 if database connection is not functional.
+     *
+     */
+    public function rowCount($result=null)
+    {
+        if(!$result) $result = $this->result;
+        if($result) {
+            return oci_num_rows($result);
+        } else {
+            return 0;
+        }
     }
-  }
 }
diff --git a/ykval-db-pdo.php b/ykval-db-pdo.php
index 969372a..0fee1cb 100644
--- a/ykval-db-pdo.php
+++ b/ykval-db-pdo.php
@@ -36,231 +36,228 @@ require_once('ykval-db.php');
 
 class DbImpl extends Db
 {
+    /**
+     * Constructor
+     *
+     * @param string $host Database host
+     * @param string $user Database user
+     * @param string $pwd  Database password
+     * @param string $name Database table name
+     * @return void
+     *
+     */
+    public function __construct($db_dsn, $db_username, $db_password, $db_options, $name='ykval-db')
+    {
+        $this->db_dsn=$db_dsn;
+        $this->db_username=$db_username;
+        $this->db_password=$db_password;
+        $this->db_options=$db_options;
+        $this->result = null;
 
-
-  /**
-   * Constructor
-   *
-   * @param string $host Database host
-   * @param string $user Database user
-   * @param string $pwd  Database password
-   * @param string $name Database table name
-   * @return void
-   *
-   */
-  public function __construct($db_dsn, $db_username, $db_password, $db_options, $name='ykval-db')
-  {
-    $this->db_dsn=$db_dsn;
-    $this->db_username=$db_username;
-    $this->db_password=$db_password;
-    $this->db_options=$db_options;
-    $this->result = null;
-
-    $this->myLog=new Log($name);
-  }
-
-  /**
-   * function to connect to database defined in config.php
-   *
-   * @return boolean True on success, otherwise false.
-   *
-   */
-  public function connect(){
-
-    try {
-      $this->dbh = new PDO($this->db_dsn, $this->db_username, $this->db_password, $this->db_options);
-    } catch (PDOException $e) {
-      $this->myLog->log(LOG_CRIT, "Database connection error: " . $e->getMessage());
-      $this->dbh=Null;
-      return false;
+        $this->myLog=new Log($name);
     }
-    return true;
-  }
 
-  protected function query($query, $returnresult=false) {
-    if(!$this->isConnected()) {
-      $this->connect();
+    /**
+     * function to connect to database defined in config.php
+     *
+     * @return boolean True on success, otherwise false.
+     *
+     */
+    public function connect(){
+
+        try {
+            $this->dbh = new PDO($this->db_dsn, $this->db_username, $this->db_password, $this->db_options);
+        } catch (PDOException $e) {
+            $this->myLog->log(LOG_CRIT, "Database connection error: " . $e->getMessage());
+            $this->dbh=Null;
+            return false;
+        }
+        return true;
     }
-    if($this->isConnected()) {
-      $this->myLog->log(LOG_DEBUG, 'DB query is: ' . $query);
 
-      try {
-	$this->result = $this->dbh->query($query);
-      } catch (PDOException $e) {
-	$this->myLog->log(LOG_INFO, 'Database query error: ' . preg_replace('/\n/',' ',print_r($this->dbh->errorInfo(), true)));
-	$this->dbh = Null;
-	return false;
-      }
-      if ($returnresult) return $this->result;
-      else return true;
-    } else {
-      $this->myLog->log(LOG_CRIT, 'No database connection');
-      return false;
+    protected function query($query, $returnresult=false) {
+        if(!$this->isConnected()) {
+            $this->connect();
+        }
+        if($this->isConnected()) {
+            $this->myLog->log(LOG_DEBUG, 'DB query is: ' . $query);
+
+            try {
+                $this->result = $this->dbh->query($query);
+            } catch (PDOException $e) {
+                $this->myLog->log(LOG_INFO, 'Database query error: ' . preg_replace('/\n/',' ',print_r($this->dbh->errorInfo(), true)));
+                $this->dbh = Null;
+                return false;
+            }
+            if ($returnresult) return $this->result;
+            else return true;
+        } else {
+            $this->myLog->log(LOG_CRIT, 'No database connection');
+            return false;
+        }
     }
-  }
 
+    /**
+     * function to get a row from the query result
+     * Once all rows have been fetch, function closeCursor needs to be called
+     *
+     * @param object $result Query result object or null to use the current one
+     * @return array a query row
+     *
+     */
+    public function fetchArray($result=null){
+        if(!$result) $result = $this->result;
+        if(!$result) return null;
 
-  /**
-   * function to get a row from the query result
-   * Once all rows have been fetch, function closeCursor needs to be called
-   *
-   * @param object $result Query result object or null to use the current one
-   * @return array a query row
-   *
-   */
-  public function fetchArray($result=null){
-    if(!$result) $result = $this->result;
-    if(!$result) return null;
+        return $result->fetch(PDO::FETCH_ASSOC);
+    }
 
-    return $result->fetch(PDO::FETCH_ASSOC);
-  }
+    /**
+     * function to close the cursor after having fetched rows
+     *
+     * @param object $result Query result object or null to use the current one
+     *
+     */
+    public function closeCursor($result=null){
+        if(!$result) $result = $this->result;
+        if($result) $result->closeCursor();
+    }
 
-  /**
-   * function to close the cursor after having fetched rows
-   *
-   * @param object $result Query result object or null to use the current one
-   *
-   */
-  public function closeCursor($result=null){
-    if(!$result) $result = $this->result;
-    if($result) $result->closeCursor();
-  }
+    /**
+     * Main function used to get rows by multiple key=>value pairs from Db table.
+     *
+     * @param string $table Database table to update row in
+     * @param array $where Array with column=>values to select rows by
+     * @param int $nr Number of rows to collect. NULL=>inifinity. Default=NULL.
+     * @param int $rev rev=1 indicates order should be reversed. Default=NULL.
+     * @param string distinct Select rows with distinct columns, Default=NULL
+     *
+     * @return mixed Array with values from Db row or 2d-array with multiple rows
+     */
+    public function findByMultiple($table, $where, $nr=NULL, $rev=NULL, $distinct=NULL)
+    {
+        $value = '';
+        $match = NULL;
+        $query = 'SELECT';
 
-	/**
-	 * Main function used to get rows by multiple key=>value pairs from Db table.
-	 *
-	 * @param string $table Database table to update row in
-	 * @param array $where Array with column=>values to select rows by
-	 * @param int $nr Number of rows to collect. NULL=>inifinity. Default=NULL.
-	 * @param int $rev rev=1 indicates order should be reversed. Default=NULL.
-	 * @param string distinct Select rows with distinct columns, Default=NULL
-	 *
-	 * @return mixed Array with values from Db row or 2d-array with multiple rows
-	 */
-	public function findByMultiple($table, $where, $nr=NULL, $rev=NULL, $distinct=NULL)
-	{
-		$value = '';
-		$match = NULL;
-		$query = 'SELECT';
+        if ($distinct != NULL)
+            $query.= " DISTINCT " . $distinct;
+        else
+            $query.= " *";
 
-		if ($distinct != NULL)
-			$query.= " DISTINCT " . $distinct;
-		else
-			$query.= " *";
+        $query.= " FROM " . $table;
 
-		$query.= " FROM " . $table;
-
-		if ($where != NULL)
-		{
-			foreach ($where as $key => $value)
-      {
-        if ($key != 'server' && !(ctype_alnum($value) || is_null($value)))
+        if ($where != NULL)
         {
-          $this->myLog->log(LOG_WARNING, "findByMultiple: attempted to use non-alphanumeric in WHERE: " . $table . "." . $key . " = " . $value);
-          return false;
+            foreach ($where as $key => $value)
+            {
+                if ($key != 'server' && !(ctype_alnum($value) || is_null($value)))
+                {
+                    $this->myLog->log(LOG_WARNING, "findByMultiple: attempted to use non-alphanumeric in WHERE: " . $table . "." . $key . " = " . $value);
+                    return false;
+                }
+                elseif ($key == 'server' && !filter_var($value, FILTER_VALIDATE_URL))
+                {
+                    $this->myLog->log(LOG_WARNING, "findByMultiple: attempted to use invalid URL in WHERE: " . $table . "." . $key . " = " . $value);
+                    return false;
+                }
+                if ($key != NULL)
+                {
+                    if ($value != NULL)
+                        $match .= " ". $key . " = '" . $value . "' and";
+                    else
+                        $match .= " ". $key . " is NULL and";
+                }
+            }
+
+            if ($match != NULL)
+                $query .= " WHERE" . $match;
+
+            $query = rtrim($query, "and");
+            $query = rtrim($query);
         }
-        elseif ($key == 'server' && !filter_var($value, FILTER_VALIDATE_URL))
+
+        if ($rev == 1)
+            $query.= " ORDER BY id DESC";
+
+        if ($nr != NULL)
+            $query.= " LIMIT " . $nr;
+
+        $result = $this->query($query, true);
+
+        if (!$result)
+            return false;
+
+        if ($nr == 1)
         {
-          $this->myLog->log(LOG_WARNING, "findByMultiple: attempted to use invalid URL in WHERE: " . $table . "." . $key . " = " . $value);
-          return false;
+            $row = $this->fetchArray($result);
+            $this->closeCursor($result);
+            return $row;
         }
-				if ($key != NULL)
-				{
-					if ($value != NULL)
-						$match .= " ". $key . " = '" . $value . "' and";
-					else
-						$match .= " ". $key . " is NULL and";
-				}
-			}
 
-			if ($match != NULL)
-				$query .= " WHERE" . $match;
+        $collection = array();
 
-			$query = rtrim($query, "and");
-			$query = rtrim($query);
-		}
+        while($row = $this->fetchArray($result))
+            $collection[] = $row;
 
-		if ($rev == 1)
-			$query.= " ORDER BY id DESC";
+        $this->closeCursor($result);
 
-		if ($nr != NULL)
-			$query.= " LIMIT " . $nr;
-
-		$result = $this->query($query, true);
-
-		if (!$result)
-			return false;
-
-		if ($nr == 1)
-		{
-			$row = $this->fetchArray($result);
-			$this->closeCursor($result);
-			return $row;
-		}
-
-		$collection = array();
-
-		while($row = $this->fetchArray($result))
-			$collection[] = $row;
-
-		$this->closeCursor($result);
-
-		return $collection;
-	}
-
-  /**
-   * main function used to delete rows by multiple key=>value pairs from Db table.
-   *
-   * @param string $table Database table to delete row in
-   * @param array $where Array with column=>values to select rows by
-   * @param int $nr Number of rows to collect. NULL=>inifinity. Default=NULL.
-   * @param int $rev rev=1 indicates order should be reversed. Default=NULL.
-   * @param string distinct Select rows with distinct columns, Default=NULL
-   * @return boolean True on success, otherwise false.
-   *
-   */
-  public function deleteByMultiple($table, $where, $nr=null, $rev=null)
-  {
-    $query="DELETE";
-    $query.= " FROM " . $table;
-    if ($where!=null){
-      $query.= " WHERE";
-      foreach ($where as $key=>$value) {
-        if ($key != 'server' && !ctype_alnum($value)) {
-          $this->myLog->log(LOG_WARNING, "deleteByMultiple: attempted to write non-alphanumeric to the database: " . $value);
-          return false;
-        }
-        elseif ($key == 'server' && !filter_var($value, FILTER_VALIDATE_URL))
-        {
-          $this->myLog->log(LOG_WARNING, "deleteByMultiple: attempted to write invalid URL to the database: " . $value);
-          return false;
-        }
-	      $query.= " ". $key . " = '" . $value . "' and";
-      }
-      $query=rtrim($query, "and");
-      $query=rtrim($query);
+        return $collection;
     }
-    if ($rev==1) $query.= " ORDER BY id DESC";
-    if ($nr!=null) $query.= " LIMIT " . $nr;
-    return $this->query($query, false);
-  }
 
-  /**
-   * Function to get the number of rows
-   *
-   * @param object $result Query result object or null to use the current one
-   * @return int number of rows affected by last statement or 0 if database connection is not functional.
-   *
-   */
-  public function rowCount($result=null)
-  {
-    if(!$result) $result = $this->result;
-    if($result) {
-	$count=$result->rowCount();
-	$result->closeCursor();
-	return $count;
-    } else {
-	return 0;
+    /**
+     * main function used to delete rows by multiple key=>value pairs from Db table.
+     *
+     * @param string $table Database table to delete row in
+     * @param array $where Array with column=>values to select rows by
+     * @param int $nr Number of rows to collect. NULL=>inifinity. Default=NULL.
+     * @param int $rev rev=1 indicates order should be reversed. Default=NULL.
+     * @param string distinct Select rows with distinct columns, Default=NULL
+     * @return boolean True on success, otherwise false.
+     *
+     */
+    public function deleteByMultiple($table, $where, $nr=null, $rev=null)
+    {
+        $query="DELETE";
+        $query.= " FROM " . $table;
+        if ($where!=null){
+            $query.= " WHERE";
+            foreach ($where as $key=>$value) {
+                if ($key != 'server' && !ctype_alnum($value)) {
+                    $this->myLog->log(LOG_WARNING, "deleteByMultiple: attempted to write non-alphanumeric to the database: " . $value);
+                    return false;
+                }
+                elseif ($key == 'server' && !filter_var($value, FILTER_VALIDATE_URL))
+                {
+                    $this->myLog->log(LOG_WARNING, "deleteByMultiple: attempted to write invalid URL to the database: " . $value);
+                    return false;
+                }
+                $query.= " ". $key . " = '" . $value . "' and";
+            }
+            $query=rtrim($query, "and");
+            $query=rtrim($query);
+        }
+        if ($rev==1) $query.= " ORDER BY id DESC";
+        if ($nr!=null) $query.= " LIMIT " . $nr;
+        return $this->query($query, false);
+    }
+
+    /**
+     * Function to get the number of rows
+     *
+     * @param object $result Query result object or null to use the current one
+     * @return int number of rows affected by last statement or 0 if database connection is not functional.
+     *
+     */
+    public function rowCount($result=null)
+    {
+        if(!$result) $result = $this->result;
+        if($result) {
+            $count=$result->rowCount();
+            $result->closeCursor();
+            return $count;
+        } else {
+            return 0;
+        }
     }
-  }
 }
diff --git a/ykval-db.php b/ykval-db.php
index 4ab359e..4c1296e 100644
--- a/ykval-db.php
+++ b/ykval-db.php
@@ -35,276 +35,274 @@ require_once('ykval-log.php');
 
 abstract class Db
 {
-  /**
-   * static function to determine database type and instantiate the correct subclass
-   *
-   * */
-  public static function GetDatabaseHandle($baseParams, $logname)
-  {
-    if(substr($baseParams['__YKVAL_DB_DSN__'], 0, 3) == 'oci') {
-      require_once 'ykval-db-oci.php';
-    } else {
-      require_once 'ykval-db-pdo.php';
-    }
-    return new DbImpl($baseParams['__YKVAL_DB_DSN__'],
+    /**
+     * static function to determine database type and instantiate the correct subclass
+     *
+     * */
+    public static function GetDatabaseHandle($baseParams, $logname)
+    {
+        if(substr($baseParams['__YKVAL_DB_DSN__'], 0, 3) == 'oci') {
+            require_once 'ykval-db-oci.php';
+        } else {
+            require_once 'ykval-db-pdo.php';
+        }
+        return new DbImpl($baseParams['__YKVAL_DB_DSN__'],
                           $baseParams['__YKVAL_DB_USER__'],
                           $baseParams['__YKVAL_DB_PW__'],
                           $baseParams['__YKVAL_DB_OPTIONS__'],
                           $logname . ':db');
-  }
-
-  function addField($name, $value)
-  {
-    $this->myLog->addField($name, $value);
-  }
-
-  /**
-   * function to convert Db timestamps to unixtime(s)
-   *
-   * @param string $updated Database timestamp
-   * @return int Timestamp in unixtime format
-   *
-   */
-  public function timestampToTime($updated)
-  {
-    $stamp=strptime($updated, '%F %H:%M:%S');
-    return mktime($stamp[tm_hour], $stamp[tm_min], $stamp[tm_sec], $stamp[tm_mon]+1, $stamp[tm_mday], $stamp[tm_year]);
-
-  }
-
-  /**
-   * function to compute delta (s) between 2 Db timestamps
-   *
-   * @param string $first Database timestamp 1
-   * @param string $second Database timestamp 2
-   * @return int Deltatime (s)
-   *
-   */
-  public function timestampDeltaTime($first, $second)
-  {
-    return Db::timestampToTime($second) - Db::timestampToTime($first);
-  }
-
-  /**
-   * function to disconnect from database
-   *
-   * @return boolean True on success, otherwise false.
-   *
-   */
-  public function disconnect()
-  {
-    $this->dbh=NULL;
-  }
-
-  /**
-   * function to check if database is connected
-   *
-   * @return boolean True if connected, otherwise false.
-   *
-   */
-  public function isConnected()
-  {
-    if ($this->dbh!=NULL) return True;
-    else return False;
-  }
-
-  /**
-   * function to update row in database by a where condition
-   *
-   * @param string $table Database table to update row in
-   * @param int $id Id on row to update
-   * @param array $values Array with key=>values to update
-   * @return boolean True on success, otherwise false.
-   *
-   */
-  public function updateBy($table, $k, $v, $values)
-  {
-    if (!ctype_alnum($v) && !filter_var($v, FILTER_VALIDATE_URL)) {
-      $this->myLog->log(LOG_WARNING, "updateBy: attempted to use an invalid value: " . $v);
-      return false;
-    }
-    $query = "";
-
-    foreach ($values as $key=>$value) {
-      if ($key != 'server' && !(ctype_alnum($value) || is_null($value))) {
-        $this->myLog->log(LOG_WARNING, "updateBy: attempted to write non-alphanumeric to the database: " . $table . "." . $key . " <= " . $value);
-        return false;
-      }
-      elseif ($key == 'server' && !filter_var($value, FILTER_VALIDATE_URL))
-      {
-        $this->myLog->log(LOG_WARNING, "updateBy: attempted to write invalid URL to the database: " . $table . "." . $key . " <= " . $value);
-        return false;
-      }
-      if (!is_null($value)) $query .= ' ' . $key . "='" . $value . "',";
-      else $query .= ' ' . $key . '=NULL,';
-    }
-    if (! $query) {
-      $this->myLog->log(LOG_DEBUG, "no values to set in query. Not updating DB");
-      return true;
     }
 
-    $query = rtrim($query, ",") . " WHERE " . $k . " = '" . $v . "'";
-    // Insert UPDATE statement at beginning
-    $query = "UPDATE " . $table . " SET " . $query;
-
-    return $this->query($query, false);
-  }
-
-
-  /**
-   * function to update row in database
-   *
-   * @param string $table Database table to update row in
-   * @param int $id Id on row to update
-   * @param array $values Array with key=>values to update
-   * @return boolean True on success, otherwise false.
-   *
-   */
-  public function update($table, $id, $values)
-  {
-    return $this->updateBy($table, 'id', $id, $values);
-  }
-
-  /**
-   * function to update row in database based on a condition
-   *
-   * @param string $table Database table to update row in
-   * @param string $k Column to select row on
-   * @param string $v Value to select row on
-   * @param array $values Array with key=>values to update
-   * @param string $condition conditional statement
-   * @return boolean True on success, otherwise false.
-   *
-   */
-  public function conditionalUpdateBy($table, $k, $v, $values, $condition)
-  {
-    if (!ctype_alnum($v) || preg_match('/^[a-zA-Z0-9><=()_ ]*$/', $condition) == 0)
+    function addField($name, $value)
     {
-      $this->myLog->log(LOG_WARNING, "conditionalUpdateBy: attempted to use non-alphanumeric value: " . $v . " - " . $condition);
-      return false;
-    }
-    $query = ""; /* quiet the PHP Notice */
-
-    foreach ($values as $key=>$value){
-      if ($key != 'server' && !is_int($value) && !ctype_alnum($value)) {
-        $this->myLog->log(LOG_WARNING, "conditionalUpdateBy: attempted to write non-alphanumeric to the database: " . $value);
-        return false;
-      }
-      elseif ($key == 'server' && !filter_var($value, FILTER_VALIDATE_URL))
-      {
-        $this->myLog->log(LOG_WARNING, "conditionalUpdateBy: attempted to write invalid URL to the database: " . $value);
-        return false;
-      }
-      $query = $query . " " . $key . "='" . $value . "',";
-    }
-    if (! $query) {
-      $this->myLog->log(LOG_DEBUG, "no values to set in query. Not updating DB");
-      return true;
+        $this->myLog->addField($name, $value);
     }
 
-    $query = rtrim($query, ",") . " WHERE " . $k . " = '" . $v . "' and " . $condition;
-    // Insert UPDATE statement at beginning
-    $query = "UPDATE " . $table . " SET " . $query;
+    /**
+     * function to convert Db timestamps to unixtime(s)
+     *
+     * @param string $updated Database timestamp
+     * @return int Timestamp in unixtime format
+     *
+     */
+    public function timestampToTime($updated)
+    {
+        $stamp=strptime($updated, '%F %H:%M:%S');
+        return mktime($stamp[tm_hour], $stamp[tm_min], $stamp[tm_sec], $stamp[tm_mon]+1, $stamp[tm_mday], $stamp[tm_year]);
 
-    return $this->query($query, false);
-  }
+    }
 
+    /**
+     * function to compute delta (s) between 2 Db timestamps
+     *
+     * @param string $first Database timestamp 1
+     * @param string $second Database timestamp 2
+     * @return int Deltatime (s)
+     *
+     */
+    public function timestampDeltaTime($first, $second)
+    {
+        return Db::timestampToTime($second) - Db::timestampToTime($first);
+    }
 
-  /**
-   * Function to update row in database based on a condition.
-   * An ID value is passed to select the appropriate column
-   *
-   * @param string $table Database table to update row in
-   * @param int $id Id on row to update
-   * @param array $values Array with key=>values to update
-   * @param string $condition conditional statement
-   * @return boolean True on success, otherwise false.
-   *
-   */
-  public function conditionalUpdate($table, $id, $values, $condition)
-  {
-    return $this->conditionalUpdateBy($table, 'id', $id, $values, $condition);
-  }
+    /**
+     * function to disconnect from database
+     *
+     * @return boolean True on success, otherwise false.
+     *
+     */
+    public function disconnect()
+    {
+        $this->dbh=NULL;
+    }
 
-  /**
-   * function to insert new row in database
-   *
-   * @param string $table Database table to update row in
-   * @param array $values Array with key=>values to update
-   * @return boolean True on success, otherwise false.
-   *
-   */
-  public function save($table, $values)
-  {
-    $query= 'INSERT INTO ' . $table . " (";
-    foreach ($values as $key=>$value){
-      if ($key == 'server') {
-        $v = filter_var($value, FILTER_VALIDATE_URL);
-        if (!$v) {
-          $this->myLog->log(LOG_WARNING, "save: bad server URL provided: " . $value);
-          return false;
+    /**
+     * function to check if database is connected
+     *
+     * @return boolean True if connected, otherwise false.
+     *
+     */
+    public function isConnected()
+    {
+        if ($this->dbh!=NULL) return True;
+        else return False;
+    }
+
+    /**
+     * function to update row in database by a where condition
+     *
+     * @param string $table Database table to update row in
+     * @param int $id Id on row to update
+     * @param array $values Array with key=>values to update
+     * @return boolean True on success, otherwise false.
+     *
+     */
+    public function updateBy($table, $k, $v, $values)
+    {
+        if (!ctype_alnum($v) && !filter_var($v, FILTER_VALIDATE_URL)) {
+            $this->myLog->log(LOG_WARNING, "updateBy: attempted to use an invalid value: " . $v);
+            return false;
         }
-        $value = $v;
-      } else if ($key == 'info') {
-        if (preg_match('/[a-zA-Z0-9&_=,]+/', $value) == 0) {
-          $this->myLog->log(LOG_WARNING, "save: bad info string provided: " . $value);
-          return false;
-        }
-      } else {
-        if ($value != '' && !is_int($value) && !ctype_alnum($value)) {
-          $this->myLog->log(LOG_WARNING, "save: attempted to write non-alphanumeric to the database: " . $value);
-          return false;
-        }
-      }
-      if (!is_null($value)) $query = $query . $key . ",";
-    }
-    $query = rtrim($query, ",") . ') VALUES (';
-    foreach ($values as $key=>$value){
-      if (!is_null($value)) $query = $query . "'" . $value . "',";
-    }
-    $query = rtrim($query, ",");
-    $query = $query . ")";
-    return $this->query($query, false);
-  }
-  /**
-   * helper function to collect last row[s] in database
-   *
-   * @param string $table Database table to update row in
-   * @param int $nr Number of rows to collect. NULL=>inifinity. DEFAULT=1.
-   * @return mixed Array with values from Db row or 2d-array with multiple rows
-or false on failure.
-   *
-   */
-  public function last($table, $nr=1)
-  {
-    return Db::findBy($table, null, null, $nr, 1);
-  }
+        $query = "";
 
-  /**
-   * main function used to get rows from Db table.
-   *
-   * @param string $table Database table to update row in
-   * @param string $key Column to select rows by
-   * @param string $value Value to select rows by
-   * @param int $nr Number of rows to collect. NULL=>inifinity. Default=NULL.
-   * @param int $rev rev=1 indicates order should be reversed. Default=NULL.
-   * @return mixed Array with values from Db row or 2d-array with multiple rows
-   *
-   */
-  public function findBy($table, $key, $value, $nr=null, $rev=null)
-  {
-    return $this->findByMultiple($table, array($key=>$value), $nr, $rev);
-  }
+        foreach ($values as $key=>$value) {
+            if ($key != 'server' && !(ctype_alnum($value) || is_null($value))) {
+                $this->myLog->log(LOG_WARNING, "updateBy: attempted to write non-alphanumeric to the database: " . $table . "." . $key . " <= " . $value);
+                return false;
+            }
+            elseif ($key == 'server' && !filter_var($value, FILTER_VALIDATE_URL))
+            {
+                $this->myLog->log(LOG_WARNING, "updateBy: attempted to write invalid URL to the database: " . $table . "." . $key . " <= " . $value);
+                return false;
+            }
+            if (!is_null($value)) $query .= ' ' . $key . "='" . $value . "',";
+            else $query .= ' ' . $key . '=NULL,';
+        }
+        if (! $query) {
+            $this->myLog->log(LOG_DEBUG, "no values to set in query. Not updating DB");
+            return true;
+        }
 
-  /**
-   * Function to do a custom query on database connection
-   *
-   * @param string $query Database query
-   * @return mixed
-   *
-   */
-  public function customQuery($query)
-  {
-    return $this->query($query, true);
-  }
+        $query = rtrim($query, ",") . " WHERE " . $k . " = '" . $v . "'";
+        // Insert UPDATE statement at beginning
+        $query = "UPDATE " . $table . " SET " . $query;
+
+        return $this->query($query, false);
+    }
+
+    /**
+     * function to update row in database
+     *
+     * @param string $table Database table to update row in
+     * @param int $id Id on row to update
+     * @param array $values Array with key=>values to update
+     * @return boolean True on success, otherwise false.
+     *
+     */
+    public function update($table, $id, $values)
+    {
+        return $this->updateBy($table, 'id', $id, $values);
+    }
+
+    /**
+     * function to update row in database based on a condition
+     *
+     * @param string $table Database table to update row in
+     * @param string $k Column to select row on
+     * @param string $v Value to select row on
+     * @param array $values Array with key=>values to update
+     * @param string $condition conditional statement
+     * @return boolean True on success, otherwise false.
+     *
+     */
+    public function conditionalUpdateBy($table, $k, $v, $values, $condition)
+    {
+        if (!ctype_alnum($v) || preg_match('/^[a-zA-Z0-9><=()_ ]*$/', $condition) == 0)
+        {
+            $this->myLog->log(LOG_WARNING, "conditionalUpdateBy: attempted to use non-alphanumeric value: " . $v . " - " . $condition);
+            return false;
+        }
+        $query = ""; /* quiet the PHP Notice */
+
+        foreach ($values as $key=>$value){
+            if ($key != 'server' && !is_int($value) && !ctype_alnum($value)) {
+                $this->myLog->log(LOG_WARNING, "conditionalUpdateBy: attempted to write non-alphanumeric to the database: " . $value);
+                return false;
+            }
+            elseif ($key == 'server' && !filter_var($value, FILTER_VALIDATE_URL))
+            {
+                $this->myLog->log(LOG_WARNING, "conditionalUpdateBy: attempted to write invalid URL to the database: " . $value);
+                return false;
+            }
+            $query = $query . " " . $key . "='" . $value . "',";
+        }
+        if (! $query) {
+            $this->myLog->log(LOG_DEBUG, "no values to set in query. Not updating DB");
+            return true;
+        }
+
+        $query = rtrim($query, ",") . " WHERE " . $k . " = '" . $v . "' and " . $condition;
+        // Insert UPDATE statement at beginning
+        $query = "UPDATE " . $table . " SET " . $query;
+
+        return $this->query($query, false);
+    }
+
+    /**
+     * Function to update row in database based on a condition.
+     * An ID value is passed to select the appropriate column
+     *
+     * @param string $table Database table to update row in
+     * @param int $id Id on row to update
+     * @param array $values Array with key=>values to update
+     * @param string $condition conditional statement
+     * @return boolean True on success, otherwise false.
+     *
+     */
+    public function conditionalUpdate($table, $id, $values, $condition)
+    {
+        return $this->conditionalUpdateBy($table, 'id', $id, $values, $condition);
+    }
+
+    /**
+     * function to insert new row in database
+     *
+     * @param string $table Database table to update row in
+     * @param array $values Array with key=>values to update
+     * @return boolean True on success, otherwise false.
+     *
+     */
+    public function save($table, $values)
+    {
+        $query= 'INSERT INTO ' . $table . " (";
+        foreach ($values as $key=>$value){
+            if ($key == 'server') {
+                $v = filter_var($value, FILTER_VALIDATE_URL);
+                if (!$v) {
+                    $this->myLog->log(LOG_WARNING, "save: bad server URL provided: " . $value);
+                    return false;
+                }
+                $value = $v;
+            } else if ($key == 'info') {
+                if (preg_match('/[a-zA-Z0-9&_=,]+/', $value) == 0) {
+                    $this->myLog->log(LOG_WARNING, "save: bad info string provided: " . $value);
+                    return false;
+                }
+            } else {
+                if ($value != '' && !is_int($value) && !ctype_alnum($value)) {
+                    $this->myLog->log(LOG_WARNING, "save: attempted to write non-alphanumeric to the database: " . $value);
+                    return false;
+                }
+            }
+            if (!is_null($value)) $query = $query . $key . ",";
+        }
+        $query = rtrim($query, ",") . ') VALUES (';
+        foreach ($values as $key=>$value){
+            if (!is_null($value)) $query = $query . "'" . $value . "',";
+        }
+        $query = rtrim($query, ",");
+        $query = $query . ")";
+        return $this->query($query, false);
+    }
+    /**
+     * helper function to collect last row[s] in database
+     *
+     * @param string $table Database table to update row in
+     * @param int $nr Number of rows to collect. NULL=>inifinity. DEFAULT=1.
+     * @return mixed Array with values from Db row or 2d-array with multiple rows
+     or false on failure.
+     *
+     */
+    public function last($table, $nr=1)
+    {
+        return Db::findBy($table, null, null, $nr, 1);
+    }
+
+    /**
+     * main function used to get rows from Db table.
+     *
+     * @param string $table Database table to update row in
+     * @param string $key Column to select rows by
+     * @param string $value Value to select rows by
+     * @param int $nr Number of rows to collect. NULL=>inifinity. Default=NULL.
+     * @param int $rev rev=1 indicates order should be reversed. Default=NULL.
+     * @return mixed Array with values from Db row or 2d-array with multiple rows
+     *
+     */
+    public function findBy($table, $key, $value, $nr=null, $rev=null)
+    {
+        return $this->findByMultiple($table, array($key=>$value), $nr, $rev);
+    }
+
+    /**
+     * Function to do a custom query on database connection
+     *
+     * @param string $query Database query
+     * @return mixed
+     *
+     */
+    public function customQuery($query)
+    {
+        return $this->query($query, true);
+    }
 }
diff --git a/ykval-export b/ykval-export
index 8c941f4..7ad5dbb 100755
--- a/ykval-export
+++ b/ykval-export
@@ -29,9 +29,9 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 set_include_path(implode(PATH_SEPARATOR, array(
-	get_include_path(),
-	'/usr/share/yubikey-val',
-	'/etc/yubico/val',
+    get_include_path(),
+    '/usr/share/yubikey-val',
+    '/etc/yubico/val',
 )));
 
 require_once 'ykval-config.php';
@@ -44,24 +44,24 @@ $myLog = new Log($logname);
 $db = Db::GetDatabaseHandle($baseParams, $logname);
 
 if (!$db->connect()) {
-  $myLog->log(LOG_WARNING, "Could not connect to database");
-  exit(1);
- }
+    $myLog->log(LOG_WARNING, "Could not connect to database");
+    exit(1);
+}
 
 $result=$db->customQuery("SELECT active, created, modified, yk_publicname, yk_counter, yk_use, yk_low, yk_high, nonce, notes FROM yubikeys ORDER BY yk_publicname");
 while($row = $db->fetchArray($result)){
-  echo (int)$row['active'] .
-    "," . $row['created'] .
-    "," . $row['modified'] .
-    "," . $row['yk_publicname'] .
-    "," . $row['yk_counter'] .
-    "," . $row['yk_use'] .
-    "," . $row['yk_low'] .
-    "," . $row['yk_high'] .
-    "," . $row['nonce'] .
-    "," . $row['notes'] .
-    "\n";
- }
+    echo (int)$row['active'] .
+                             "," . $row['created'] .
+                             "," . $row['modified'] .
+                             "," . $row['yk_publicname'] .
+                             "," . $row['yk_counter'] .
+                             "," . $row['yk_use'] .
+                             "," . $row['yk_low'] .
+                             "," . $row['yk_high'] .
+                             "," . $row['nonce'] .
+                             "," . $row['notes'] .
+                             "\n";
+}
 
 $db->closeCursor($result);
 $db->disconnect();
diff --git a/ykval-export-clients b/ykval-export-clients
index a65f200..7860b12 100755
--- a/ykval-export-clients
+++ b/ykval-export-clients
@@ -44,20 +44,20 @@ $myLog = new Log($logname);
 $db = Db::GetDatabaseHandle($baseParams, $logname);
 
 if (!$db->connect()) {
-  $myLog->log(LOG_WARNING, "Could not connect to database");
-  exit(1);
- }
+    $myLog->log(LOG_WARNING, "Could not connect to database");
+    exit(1);
+}
 
 $result = $db->customQuery("select id, active, created, secret, email, notes, otp from clients order by id");
 while($row = $db->fetchArray($result)) {
-  echo $row['id'] .
-    "," . (int)$row['active'] .
-    "," . $row['created'] .
-    "," . $row['secret'] .
-    "," . $row['email'] .
-    "," . $row['notes'] .
-    "," . $row['otp'] .
-    "\n";
+    echo $row['id'] .
+                    "," . (int)$row['active'] .
+                    "," . $row['created'] .
+                    "," . $row['secret'] .
+                    "," . $row['email'] .
+                    "," . $row['notes'] .
+                    "," . $row['otp'] .
+                    "\n";
 }
 
 $db->closeCursor($result);
diff --git a/ykval-gen-clients b/ykval-gen-clients
index 039a36d..071e29b 100755
--- a/ykval-gen-clients
+++ b/ykval-gen-clients
@@ -37,18 +37,18 @@ set_include_path(implode(PATH_SEPARATOR, array(
 $options = getopt("h", array("help", "email::", "notes::", "otp::", "urandom"));
 
 if(array_key_exists('h', $options) || array_key_exists('help', $options)) {
-  echo "Usage: ".$argv[0]." [ OPTIONS ] [ num_clients ]\n";
-  echo "  Unless num_clients is defined, one client will be generated.\n\n";
-  echo "Options supported by ".$argv[0]."\n";
-  echo "  --urandom\n";
-  echo "        Use /dev/urandom instead of /dev/random as entropy source\n";
-  echo "  --email=EMAIL\n";
-  echo "        Sets the e-mail field of the created clients\n";
-  echo "  --notes=NOTES\n";
-  echo "        Sets the notes field of the created clients\n";
-  echo "  --otp=OTP\n";
-  echo "        Sets the otp field of the created clients\n";
-  exit(1);
+    echo "Usage: ".$argv[0]." [ OPTIONS ] [ num_clients ]\n";
+    echo "  Unless num_clients is defined, one client will be generated.\n\n";
+    echo "Options supported by ".$argv[0]."\n";
+    echo "  --urandom\n";
+    echo "        Use /dev/urandom instead of /dev/random as entropy source\n";
+    echo "  --email=EMAIL\n";
+    echo "        Sets the e-mail field of the created clients\n";
+    echo "  --notes=NOTES\n";
+    echo "        Sets the notes field of the created clients\n";
+    echo "  --otp=OTP\n";
+    echo "        Sets the otp field of the created clients\n";
+    exit(1);
 }
 
 require_once 'ykval-config.php';
@@ -60,65 +60,65 @@ $myLog = new Log($logname);
 $db = Db::GetDatabaseHandle($baseParams, $logname);
 
 if(!$db->connect()) {
-  $myLog->log(LOG_WARNING, "Could not connect to database");
-  error_log("Could not connect to database");
-  exit(1);
+    $myLog->log(LOG_WARNING, "Could not connect to database");
+    error_log("Could not connect to database");
+    exit(1);
 }
 
 $count=1;
 if($last_arg = intval(array_pop($argv))) {
-  $count = $last_arg;
+    $count = $last_arg;
 }
 
 $result = $db->customQuery("SELECT id FROM clients ORDER BY id DESC LIMIT 1");
 $row = $db->fetchArray($result);
 $db->closeCursor($result);
 if($row) {
-  $next_id = $row['id']+1;
+    $next_id = $row['id']+1;
 } else {
-  $next_id = 1;
+    $next_id = 1;
 }
 
 $random = array_key_exists('urandom', $options) ? "/dev/urandom" : "/dev/random";
 $fh = fopen($random, "r");
 if(!$fh) {
- die("cannot open ".$random);
+    die("cannot open ".$random);
 }
 
 for ($i=0; $i<$count; $i++) {
-  $client_id = $next_id++;
-  if (!($rnd = fread ($fh, 20))) {
-    die("cannot read from ".$random);
-  }
-  $secret = base64_encode($rnd);
+    $client_id = $next_id++;
+    if (!($rnd = fread ($fh, 20))) {
+        die("cannot read from ".$random);
+    }
+    $secret = base64_encode($rnd);
 
-  $params = array(
-    "id" => $client_id,
-    "active" => 1,
-    "created" => time(),
-    "secret" => $secret,
-    "email" => array_key_exists('email', $options) ? $options['email'] : '',
-    "notes" => array_key_exists('notes', $options) ? $options['notes'] : '',
-    "otp" => array_key_exists('otp', $options) ? $options['otp'] : ''
-  );
+    $params = array(
+        "id" => $client_id,
+        "active" => 1,
+        "created" => time(),
+        "secret" => $secret,
+        "email" => array_key_exists('email', $options) ? $options['email'] : '',
+        "notes" => array_key_exists('notes', $options) ? $options['notes'] : '',
+        "otp" => array_key_exists('otp', $options) ? $options['otp'] : ''
+    );
 
-  $query="INSERT INTO clients " .
-      "(id,active,created,secret,email,notes,otp) VALUES " .
-      "('" . $params["id"] . "', " .
-      "'" . $params["active"] . "', " .
-      "'" . $params['created'] . "'," .
-      "'" . $params['secret'] . "'," .
-      "'" . $params['email'] . "'," .
-      "'" . $params['notes'] . "'," .
-      "'" . $params['otp'] . "')";
+    $query="INSERT INTO clients " .
+          "(id,active,created,secret,email,notes,otp) VALUES " .
+          "('" . $params["id"] . "', " .
+          "'" . $params["active"] . "', " .
+          "'" . $params['created'] . "'," .
+          "'" . $params['secret'] . "'," .
+          "'" . $params['email'] . "'," .
+          "'" . $params['notes'] . "'," .
+          "'" . $params['otp'] . "')";
 
-  if(!$db->customQuery($query)){
-    $myLog->log(LOG_ERR, "Failed to insert new client with query " . $query);
-    error_log("Failed to insert new client with query " . $query);
-    exit(1);
-  }
+    if(!$db->customQuery($query)){
+        $myLog->log(LOG_ERR, "Failed to insert new client with query " . $query);
+        error_log("Failed to insert new client with query " . $query);
+        exit(1);
+    }
 
-  echo $client_id.",".$secret."\n";
+    echo $client_id.",".$secret."\n";
 }
 
 fclose($fh);
diff --git a/ykval-import b/ykval-import
index abebdac..9d03b4c 100755
--- a/ykval-import
+++ b/ykval-import
@@ -44,80 +44,80 @@ $myLog = new Log($logname);
 $db = Db::GetDatabaseHandle($baseParams, $logname);
 
 if (!$db->connect()) {
-  $myLog->log(LOG_WARNING, "Could not connect to database");
-  error_log("Could not connect to database");
-  exit(1);
+    $myLog->log(LOG_WARNING, "Could not connect to database");
+    error_log("Could not connect to database");
+    exit(1);
 }
 
 
 while ($res=fgetcsv(STDIN, 0, ",")) {
 
-  if ($res[0]===null || strpos($res[0], '#')===0)
-    continue;
+    if ($res[0]===null || strpos($res[0], '#')===0)
+        continue;
 
-  $params=array(
-    "active"=>$res[0],
-    "created"=>$res[1],
-    "modified"=>$res[2],
-    "yk_publicname"=>$res[3],
-    "yk_counter"=>$res[4],
-    "yk_use"=>$res[5],
-    "yk_low"=>$res[6],
-    "yk_high"=>$res[7],
-    "nonce"=>$res[8],
-    "notes"=>$res[9]
-  );
+    $params=array(
+        "active"=>$res[0],
+        "created"=>$res[1],
+        "modified"=>$res[2],
+        "yk_publicname"=>$res[3],
+        "yk_counter"=>$res[4],
+        "yk_use"=>$res[5],
+        "yk_low"=>$res[6],
+        "yk_high"=>$res[7],
+        "nonce"=>$res[8],
+        "notes"=>$res[9]
+    );
 
-  # FIXME
-  # INSERT first, if duplicate error, UPDATE.
+    # FIXME
+    # INSERT first, if duplicate error, UPDATE.
 
-  $query="SELECT * FROM yubikeys WHERE yk_publicname='" . $params['yk_publicname'] . "'";
-  $result=$db->customQuery($query);
+    $query="SELECT * FROM yubikeys WHERE yk_publicname='" . $params['yk_publicname'] . "'";
+    $result=$db->customQuery($query);
 
-  if ($db->rowCount($result)) {
-    $query="UPDATE yubikeys SET " .
-      "active='" . $params["active"] . "' " .
-      ",created='" . $params["created"] . "' " .
-      ",modified='" . $params["modified"] . "' " .
-      ",yk_counter='" . $params["yk_counter"] . "' " .
-      ",yk_use='" . $params["yk_use"] . "' " .
-      ",yk_low='" . $params["yk_low"] . "' " .
-      ",yk_high='" . $params["yk_high"] . "' " .
-      ",nonce='" . $params["nonce"] . "' " .
-      ",notes='" . $params["notes"] . "' " .
-      "WHERE yk_publicname='" . $params['yk_publicname'] . "' AND " .
-      "(".$params['yk_counter'].">yk_counter or (".$params['yk_counter']."=yk_counter and " .
-      $params['yk_use'] . ">yk_use))";
+    if ($db->rowCount($result)) {
+        $query="UPDATE yubikeys SET " .
+              "active='" . $params["active"] . "' " .
+              ",created='" . $params["created"] . "' " .
+              ",modified='" . $params["modified"] . "' " .
+              ",yk_counter='" . $params["yk_counter"] . "' " .
+              ",yk_use='" . $params["yk_use"] . "' " .
+              ",yk_low='" . $params["yk_low"] . "' " .
+              ",yk_high='" . $params["yk_high"] . "' " .
+              ",nonce='" . $params["nonce"] . "' " .
+              ",notes='" . $params["notes"] . "' " .
+              "WHERE yk_publicname='" . $params['yk_publicname'] . "' AND " .
+              "(".$params['yk_counter'].">yk_counter or (".$params['yk_counter']."=yk_counter and " .
+              $params['yk_use'] . ">yk_use))";
 
-    if(!$db->customQuery($query)) {
-      $myLog->log(LOG_ERR, "Failed to update yk_publicname with query " . $query);
-      error_log("Failed to update yk_publicname with query " . $query);
-      exit(1);
+        if(!$db->customQuery($query)) {
+            $myLog->log(LOG_ERR, "Failed to update yk_publicname with query " . $query);
+            error_log("Failed to update yk_publicname with query " . $query);
+            exit(1);
+        }
     }
-  }
-  else {
-    // We didn't have the yk_publicname in database so we need to do insert instead
-    $query="INSERT INTO yubikeys " .
-      "(active,created,modified,yk_publicname,yk_counter,yk_use,yk_low,yk_high,nonce,notes) VALUES " .
-      "('" . $params["active"] . "', " .
-      "'" . $params['created'] . "'," .
-      "'" . $params['modified'] . "'," .
-      "'" . $params['yk_publicname'] . "'," .
-      "'" . $params['yk_counter'] . "'," .
-      "'" . $params['yk_use'] . "'," .
-      "'" . $params['yk_low'] . "'," .
-      "'" . $params['yk_high'] . "'," .
-      "'" . $params['nonce'] . "'," .
-      "'" . $params['notes'] . "')";
+    else {
+        // We didn't have the yk_publicname in database so we need to do insert instead
+        $query="INSERT INTO yubikeys " .
+              "(active,created,modified,yk_publicname,yk_counter,yk_use,yk_low,yk_high,nonce,notes) VALUES " .
+              "('" . $params["active"] . "', " .
+              "'" . $params['created'] . "'," .
+              "'" . $params['modified'] . "'," .
+              "'" . $params['yk_publicname'] . "'," .
+              "'" . $params['yk_counter'] . "'," .
+              "'" . $params['yk_use'] . "'," .
+              "'" . $params['yk_low'] . "'," .
+              "'" . $params['yk_high'] . "'," .
+              "'" . $params['nonce'] . "'," .
+              "'" . $params['notes'] . "')";
 
-    if (!$db->customQuery($query)) {
-      $myLog->log(LOG_ERR, "Failed to insert new yk_publicname with query " . $query);
-      error_log("Failed to insert new yk_publicname with query " . $query);
-      exit(1);
+        if (!$db->customQuery($query)) {
+            $myLog->log(LOG_ERR, "Failed to insert new yk_publicname with query " . $query);
+            error_log("Failed to insert new yk_publicname with query " . $query);
+            exit(1);
+        }
     }
-  }
 
-  $db->closeCursor($result);
+    $db->closeCursor($result);
 }
 
 $myLog->log(LOG_NOTICE, "Successfully imported yubikeys to database");
diff --git a/ykval-import-clients b/ykval-import-clients
index cd224b6..f79027f 100755
--- a/ykval-import-clients
+++ b/ykval-import-clients
@@ -44,46 +44,46 @@ $myLog = new Log($logname);
 $db = Db::GetDatabaseHandle($baseParams, $logname);
 
 if (!$db->connect()) {
-  $myLog->log(LOG_WARNING, "Could not connect to database");
-  error_log("Could not connect to database");
-  exit(1);
- }
+    $myLog->log(LOG_WARNING, "Could not connect to database");
+    error_log("Could not connect to database");
+    exit(1);
+}
 
 
 while ($res=fgetcsv(STDIN, 0, ",")) {
-  if($res[0]===null || strpos($res[0], '#')===0) continue;
+    if($res[0]===null || strpos($res[0], '#')===0) continue;
 
-  $params=array("id"=>$res[0],
-		"active"=>$res[1],
-		"created"=>$res[2],
-		"secret"=>$res[3],
-		"email"=>$res[4],
-		"notes"=>$res[5],
-		"otp"=>$res[6]);
+    $params=array("id"=>$res[0],
+                  "active"=>$res[1],
+                  "created"=>$res[2],
+                  "secret"=>$res[3],
+                  "email"=>$res[4],
+                  "notes"=>$res[5],
+                  "otp"=>$res[6]);
 
 
-  $query="SELECT * FROM clients WHERE id='" . $params['id'] . "'";
-  $result=$db->customQuery($query);
-  if($db->rowCount($result) == 0) {
-    // We didn't have the id in database so we need to do insert instead
-    $query="INSERT INTO clients " .
-      "(id,active,created,secret,email,notes,otp) VALUES " .
-      "('" . $params["id"] . "', " .
-      "'" . $params["active"] . "', " .
-      "'" . $params['created'] . "'," .
-      "'" . $params['secret'] . "'," .
-      "'" . $params['email'] . "'," .
-      "'" . $params['notes'] . "'," .
-      "'" . $params['otp'] . "')";
+    $query="SELECT * FROM clients WHERE id='" . $params['id'] . "'";
+    $result=$db->customQuery($query);
+    if($db->rowCount($result) == 0) {
+        // We didn't have the id in database so we need to do insert instead
+        $query="INSERT INTO clients " .
+              "(id,active,created,secret,email,notes,otp) VALUES " .
+              "('" . $params["id"] . "', " .
+              "'" . $params["active"] . "', " .
+              "'" . $params['created'] . "'," .
+              "'" . $params['secret'] . "'," .
+              "'" . $params['email'] . "'," .
+              "'" . $params['notes'] . "'," .
+              "'" . $params['otp'] . "')";
 
-    if(!$db->customQuery($query)){
-      $myLog->log(LOG_ERR, "Failed to insert new client with query " . $query);
-      error_log("Failed to insert new client with query " . $query);
-      exit(1);
+        if(!$db->customQuery($query)){
+            $myLog->log(LOG_ERR, "Failed to insert new client with query " . $query);
+            error_log("Failed to insert new client with query " . $query);
+            exit(1);
+        }
     }
-  }
-  $db->closeCursor($result);
- }
+    $db->closeCursor($result);
+}
 
 
 $myLog->log(LOG_NOTICE, "Successfully imported clients to database");
diff --git a/ykval-log-verify.php b/ykval-log-verify.php
index 927bc4d..9fec5ba 100644
--- a/ykval-log-verify.php
+++ b/ykval-log-verify.php
@@ -31,153 +31,153 @@ require_once 'ykval-common.php';
 
 class LogVerify
 {
-	public $format = NULL;
+    public $format = NULL;
 
-	private $fields = array(
-		'time_start' => NULL,
-		'time_end' => NULL,
-		'time_taken' => NULL,
-		'ip' => NULL,
-		'client' => NULL,
-		'public_id' => NULL,
-		'otp' => NULL,
-		'status' => NULL,
-		'nonce' => NULL,
-		'signed' => NULL,
-		'counter' => NULL,
-		'low' => NULL,
-		'high' => NULL,
-		'use' => NULL,
-		'tls' => NULL,
-		'protocol' => NULL,
-		'sl' => NULL,
-		'timeout' => NULL,
-	);
+    private $fields = array(
+        'time_start' => NULL,
+        'time_end' => NULL,
+        'time_taken' => NULL,
+        'ip' => NULL,
+        'client' => NULL,
+        'public_id' => NULL,
+        'otp' => NULL,
+        'status' => NULL,
+        'nonce' => NULL,
+        'signed' => NULL,
+        'counter' => NULL,
+        'low' => NULL,
+        'high' => NULL,
+        'use' => NULL,
+        'tls' => NULL,
+        'protocol' => NULL,
+        'sl' => NULL,
+        'timeout' => NULL,
+    );
 
-	/**
-	 * Set field value.
-	 *
-	 * @param $name string
-	 * @param $value mixed
-	 * @return bool
-	 */
-	public function set($name, $value)
-	{
-		// not settable from outside
-		if ($name === 'time_end' || $name === 'time_taken')
-			return false;
+    /**
+     * Set field value.
+     *
+     * @param $name string
+     * @param $value mixed
+     * @return bool
+     */
+    public function set($name, $value)
+    {
+        // not settable from outside
+        if ($name === 'time_end' || $name === 'time_taken')
+            return false;
 
-		if (array_key_exists($name, $this->fields) === FALSE)
-			return false;
+        if (array_key_exists($name, $this->fields) === FALSE)
+            return false;
 
-		$this->fields[$name] = $value;
-		return true;
-	}
+        $this->fields[$name] = $value;
+        return true;
+    }
 
-	/**
-	 * Write verify request log line to syslog.
-	 *
-	 * @return bool
-	 */
-	public function write()
-	{
-		if ($this->format === NULL)
-			return false;
+    /**
+     * Write verify request log line to syslog.
+     *
+     * @return bool
+     */
+    public function write()
+    {
+        if ($this->format === NULL)
+            return false;
 
-		$values = array();
-		foreach ($this->sanitized() as $key => $val)
-		{
-			$values['%'.$key.'%'] = $val;
-		}
+        $values = array();
+        foreach ($this->sanitized() as $key => $val)
+        {
+            $values['%'.$key.'%'] = $val;
+        }
 
-		$message = strtr($this->format, $values);
+        $message = strtr($this->format, $values);
 
-		if (!is_string($message))
-			return false;
+        if (!is_string($message))
+            return false;
 
-		return syslog(LOG_INFO, $message);
-	}
+        return syslog(LOG_INFO, $message);
+    }
 
-	/**
-	 * Sanitize untrusted values from clients before writing them to syslog.
-	 *
-	 * P.S. signed, status, time_start, tls are assumed safe,
-	 *	since they are set internally.
-	 *
-	 * @return array sanitized $this->fields
-	 */
-	private function sanitized()
-	{
-		$a = $this->fields;
+    /**
+     * Sanitize untrusted values from clients before writing them to syslog.
+     *
+     * P.S. signed, status, time_start, tls are assumed safe,
+     *	since they are set internally.
+     *
+     * @return array sanitized $this->fields
+     */
+    private function sanitized()
+    {
+        $a = $this->fields;
 
-		if (preg_match('/^[cbdefghijklnrtuv]+$/', $a['public_id']) !== 1
-			|| strlen($a['public_id']) < 1
-			|| strlen($a['public_id']) > (OTP_MAX_LEN - TOKEN_LEN))
-		{
-			$a['public_id'] = '-';
-		}
+        if (preg_match('/^[cbdefghijklnrtuv]+$/', $a['public_id']) !== 1
+            || strlen($a['public_id']) < 1
+            || strlen($a['public_id']) > (OTP_MAX_LEN - TOKEN_LEN))
+        {
+            $a['public_id'] = '-';
+        }
 
-		if (preg_match('/^[cbdefghijklnrtuv]+$/', $a['otp']) !== 1
-			|| strlen($a['otp']) < TOKEN_LEN
-			|| strlen($a['otp']) > OTP_MAX_LEN)
-		{
-			$a['otp'] = '-';
-		}
+        if (preg_match('/^[cbdefghijklnrtuv]+$/', $a['otp']) !== 1
+            || strlen($a['otp']) < TOKEN_LEN
+            || strlen($a['otp']) > OTP_MAX_LEN)
+        {
+            $a['otp'] = '-';
+        }
 
-		if (preg_match('/^[0-9]+$/', $a['client']) !== 1)
-			$a['client'] = '-';
+        if (preg_match('/^[0-9]+$/', $a['client']) !== 1)
+            $a['client'] = '-';
 
-		if (filter_var($a['ip'], FILTER_VALIDATE_IP) === FALSE)
-			$a['ip'] = '-';
+        if (filter_var($a['ip'], FILTER_VALIDATE_IP) === FALSE)
+            $a['ip'] = '-';
 
-		if (is_int($a['counter']) === FALSE)
-			$a['counter'] = '-';
+        if (is_int($a['counter']) === FALSE)
+            $a['counter'] = '-';
 
-		if (is_int($a['low']) === FALSE)
-			$a['low'] = '-';
+        if (is_int($a['low']) === FALSE)
+            $a['low'] = '-';
 
-		if (is_int($a['high']) === FALSE)
-			$a['high'] = '-';
+        if (is_int($a['high']) === FALSE)
+            $a['high'] = '-';
 
-		if (is_int($a['use']) === FALSE)
-			$a['use'] = '-';
+        if (is_int($a['use']) === FALSE)
+            $a['use'] = '-';
 
-		if (preg_match('/^[a-zA-Z0-9]{16,40}$/', $a['nonce']) !== 1)
-			$a['nonce'] = '-';
+        if (preg_match('/^[a-zA-Z0-9]{16,40}$/', $a['nonce']) !== 1)
+            $a['nonce'] = '-';
 
-		if (is_float($a['protocol']) === TRUE)
-			$a['protocol'] = sprintf('%.1f', $a['protocol']);
-		else
-			$a['protocol'] = '-';
+        if (is_float($a['protocol']) === TRUE)
+            $a['protocol'] = sprintf('%.1f', $a['protocol']);
+        else
+            $a['protocol'] = '-';
 
-		if (   $a['sl'] !== 'fast'
-			&& $a['sl'] !== 'secure'
-			&& (preg_match('/^[0-9]{1,3}$/', $a['sl']) !== 1 || (((int) $a['sl']) > 100)))
-		{
-			$a['sl'] = '-';
-		}
+        if (   $a['sl'] !== 'fast'
+               && $a['sl'] !== 'secure'
+               && (preg_match('/^[0-9]{1,3}$/', $a['sl']) !== 1 || (((int) $a['sl']) > 100)))
+        {
+            $a['sl'] = '-';
+        }
 
-		if (preg_match('/^[0-9]+$/', $a['timeout']) !== 1)
-			$a['timeout'] = '-';
+        if (preg_match('/^[0-9]+$/', $a['timeout']) !== 1)
+            $a['timeout'] = '-';
 
-		$start = explode(' ', $a['time_start']);
-		$start_msec = $start[0];
-		$start_sec = $start[1];
-		$start = bcadd($start_sec, $start_msec, 8);
-		unset($start_sec, $start_msec);
+        $start = explode(' ', $a['time_start']);
+        $start_msec = $start[0];
+        $start_sec = $start[1];
+        $start = bcadd($start_sec, $start_msec, 8);
+        unset($start_sec, $start_msec);
 
-		$end = explode(' ', microtime());
-		$end_msec = $end[0];
-		$end_sec = $end[1];
-		$end = bcadd($end_sec, $end_msec, 8);
-		unset($end_sec, $end_msec);
+        $end = explode(' ', microtime());
+        $end_msec = $end[0];
+        $end_sec = $end[1];
+        $end = bcadd($end_sec, $end_msec, 8);
+        unset($end_sec, $end_msec);
 
-		$taken = bcsub($end, $start, 8);
+        $taken = bcsub($end, $start, 8);
 
-		$a['time_start'] = $start;
-		$a['time_end'] = $end;
-		$a['time_taken'] = $taken;
+        $a['time_start'] = $start;
+        $a['time_end'] = $end;
+        $a['time_taken'] = $taken;
 
-		return $a;
-	}
+        return $a;
+    }
 }
diff --git a/ykval-log.php b/ykval-log.php
index 20502f3..0c81565 100644
--- a/ykval-log.php
+++ b/ykval-log.php
@@ -29,58 +29,58 @@
 
 class Log
 {
-	// request logger object
-	public $request = NULL;
+    // request logger object
+    public $request = NULL;
 
-	private $log_levels = array(
-			LOG_EMERG => 'LOG_EMERG',
-			LOG_ALERT => 'LOG_ALERT',
-			LOG_CRIT => 'LOG_CRIT',
-			LOG_ERR => 'LOG_ERR',
-			LOG_WARNING => 'LOG_WARNING',
-			LOG_NOTICE => 'LOG_NOTICE',
-			LOG_INFO => 'LOG_INFO',
-			LOG_DEBUG => 'LOG_DEBUG',
-	);
+    private $log_levels = array(
+        LOG_EMERG => 'LOG_EMERG',
+        LOG_ALERT => 'LOG_ALERT',
+        LOG_CRIT => 'LOG_CRIT',
+        LOG_ERR => 'LOG_ERR',
+        LOG_WARNING => 'LOG_WARNING',
+        LOG_NOTICE => 'LOG_NOTICE',
+        LOG_INFO => 'LOG_INFO',
+        LOG_DEBUG => 'LOG_DEBUG',
+    );
 
-	private $fields = array();
+    private $fields = array();
 
-	public function __construct ($name = 'ykval')
-	{
-		$this->name = $name;
+    public function __construct ($name = 'ykval')
+    {
+        $this->name = $name;
 
-		openlog('ykval', LOG_PID, LOG_LOCAL0);
-	}
+        openlog('ykval', LOG_PID, LOG_LOCAL0);
+    }
 
-	public function addField ($name, $value)
-	{
-		$this->fields[$name] = $value;
-	}
+    public function addField ($name, $value)
+    {
+        $this->fields[$name] = $value;
+    }
 
-	public function log ($priority, $message, $extra = NULL)
-	{
-		$prefix = '';
-		foreach ($this->fields as $val)
-			$prefix .= "[$val] ";
+    public function log ($priority, $message, $extra = NULL)
+    {
+        $prefix = '';
+        foreach ($this->fields as $val)
+            $prefix .= "[$val] ";
 
-		$suffix = '';
-		if (is_array($extra)) {
-			foreach($extra as $key => $value) {
-				if (is_array($value)) {
-					$value = implode(':', $value);
-				}
-				$suffix .= " $key=$value ";
-			}
-		}
+        $suffix = '';
+        if (is_array($extra)) {
+            foreach($extra as $key => $value) {
+                if (is_array($value)) {
+                    $value = implode(':', $value);
+                }
+                $suffix .= " $key=$value ";
+            }
+        }
 
-		$message = $prefix . $message . $suffix;
+        $message = $prefix . $message . $suffix;
 
-		$message = implode(':', array(
-				$this->log_levels[$priority],
-				$this->name,
-				$message
-			));
+        $message = implode(':', array(
+            $this->log_levels[$priority],
+            $this->name,
+            $message
+        ));
 
-		syslog($priority, $message);
-	}
+        syslog($priority, $message);
+    }
 }
diff --git a/ykval-munin-ksmlatency.php b/ykval-munin-ksmlatency.php
index 450121c..adf3a47 100755
--- a/ykval-munin-ksmlatency.php
+++ b/ykval-munin-ksmlatency.php
@@ -1,6 +1,5 @@
 #!/usr/bin/php
 <?php
-
 # Copyright (c) 2010-2015 Yubico AB
 # All rights reserved.
 #
@@ -29,9 +28,9 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 set_include_path(implode(PATH_SEPARATOR, array(
-	get_include_path(),
-	'/usr/share/yubikey-val',
-	'/etc/yubico/val',
+    get_include_path(),
+    '/usr/share/yubikey-val',
+    '/etc/yubico/val',
 )));
 
 require_once 'ykval-config.php';
@@ -43,48 +42,48 @@ $urls = otp2ksmurls('ccccccccfnkjtvvijktfrvvginedlbvudjhjnggndtck', 16);
 
 if (($endpoints = endpoints($urls)) === FALSE)
 {
-	echo "Cannot parse URLs from ksm url list\n";
-	exit(1);
+    echo "Cannot parse URLs from ksm url list\n";
+    exit(1);
 }
 
 if ($argc == 2 && strcmp($argv[1], 'autoconf') == 0)
 {
-	echo "yes\n";
-	exit(0);
+    echo "yes\n";
+    exit(0);
 }
 
 if ($argc == 2 && strcmp($argv[1], 'config') == 0)
 {
-	echo "multigraph ykval_ksmlatency\n";
-	echo "graph_title KSM latency\n";
-	echo "graph_vlabel Average KSM Decrypt Latency (seconds)\n";
-	echo "graph_category ykval\n";
-	echo "graph_width 400\n";
+    echo "multigraph ykval_ksmlatency\n";
+    echo "graph_title KSM latency\n";
+    echo "graph_vlabel Average KSM Decrypt Latency (seconds)\n";
+    echo "graph_category ykval\n";
+    echo "graph_width 400\n";
 
-	foreach ($endpoints as $endpoint)
-	{
-		list ($internal, $label, $url) = $endpoint;
+    foreach ($endpoints as $endpoint)
+    {
+        list ($internal, $label, $url) = $endpoint;
 
-		echo "${internal}_avgwait.label ${label}\n";
-		echo "${internal}_avgwait.type GAUGE\n";
-		echo "${internal}_avgwait.info Average wait time for KSM decrypt\n";
-		echo "${internal}_avgwait.min 0\n";
-		echo "${internal}_avgwait.draw LINE1\n";
-	}
+        echo "${internal}_avgwait.label ${label}\n";
+        echo "${internal}_avgwait.type GAUGE\n";
+        echo "${internal}_avgwait.info Average wait time for KSM decrypt\n";
+        echo "${internal}_avgwait.min 0\n";
+        echo "${internal}_avgwait.draw LINE1\n";
+    }
 
-	exit(0);
+    exit(0);
 }
 
 echo "multigraph ykval_ksmlatency\n";
 
 foreach ($endpoints as $endpoint)
 {
-	list ($internal, $label, $url) = $endpoint;
+    list ($internal, $label, $url) = $endpoint;
 
-	if (($total_time = total_time($url)) === FALSE)
-		$total_time = 'error';
+    if (($total_time = total_time($url)) === FALSE)
+        $total_time = 'error';
 
-	echo "${internal}_avgwait.value ${total_time}\n";
+    echo "${internal}_avgwait.value ${total_time}\n";
 }
 
 exit(0);
diff --git a/ykval-munin-queuelength.php b/ykval-munin-queuelength.php
index e7ce582..cc10c66 100755
--- a/ykval-munin-queuelength.php
+++ b/ykval-munin-queuelength.php
@@ -29,52 +29,51 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 set_include_path(implode(PATH_SEPARATOR, array(
-	get_include_path(),
-	'/usr/share/yubikey-val',
-	'/etc/yubico/val',
+    get_include_path(),
+    '/usr/share/yubikey-val',
+    '/etc/yubico/val',
 )));
 
 require_once 'ykval-config.php';
 require_once 'ykval-common.php';
 require_once 'ykval-synclib.php';
 
-
 $urls = $baseParams['__YKVAL_SYNC_POOL__'];
 
 if ($argc == 2 && strcmp($argv[1], 'autoconf') == 0)
 {
-	if (is_array($urls) && count($urls) > 0)
-	{
-		echo "yes\n";
-		exit(0);
-	}
+    if (is_array($urls) && count($urls) > 0)
+    {
+        echo "yes\n";
+        exit(0);
+    }
 
-	echo "no (sync pool not configured)\n";
-	exit(0);
+    echo "no (sync pool not configured)\n";
+    exit(0);
 }
 
 if (($endpoints = endpoints($urls)) === FALSE)
 {
-	echo "Cannot parse URLs from sync pool list\n";
-	exit(1);
+    echo "Cannot parse URLs from sync pool list\n";
+    exit(1);
 }
 
 if ($argc == 2 && strcmp($argv[1], 'config') == 0)
 {
-	echo "graph_title YK-VAL queue size\n";
-	echo "graph_vlabel sync requests in queue\n";
-	echo "graph_category ykval\n";
+    echo "graph_title YK-VAL queue size\n";
+    echo "graph_vlabel sync requests in queue\n";
+    echo "graph_category ykval\n";
 
-	foreach ($endpoints as $endpoint)
-	{
-		list ($internal, $label, $url) = $endpoint;
+    foreach ($endpoints as $endpoint)
+    {
+        list ($internal, $label, $url) = $endpoint;
 
-		echo "${internal}_queuelength.label sync ${label}\n";
-		echo "${internal}_queuelength.draw AREASTACK\n";
-		echo "${internal}_queuelength.type GAUGE\n";
-	}
+        echo "${internal}_queuelength.label sync ${label}\n";
+        echo "${internal}_queuelength.draw AREASTACK\n";
+        echo "${internal}_queuelength.type GAUGE\n";
+    }
 
-	exit(0);
+    exit(0);
 }
 
 $sync = new SyncLib('ykval-synclib:munin');
@@ -82,14 +81,14 @@ $queuelength = $sync->getQueueLengthByServer();
 
 foreach ($endpoints as $endpoint)
 {
-	list ($internal, $label, $url) = $endpoint;
+    list ($internal, $label, $url) = $endpoint;
 
-	$count = 0;
+    $count = 0;
 
-	if (array_key_exists($url, $queuelength))
-		$count = $queuelength[$url];
+    if (array_key_exists($url, $queuelength))
+        $count = $queuelength[$url];
 
-	echo "${internal}_queuelength.value $count\n";
+    echo "${internal}_queuelength.value $count\n";
 }
 
 exit(0);
diff --git a/ykval-munin-vallatency.php b/ykval-munin-vallatency.php
index 7de0abe..2d4c273 100755
--- a/ykval-munin-vallatency.php
+++ b/ykval-munin-vallatency.php
@@ -29,67 +29,66 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 set_include_path(implode(PATH_SEPARATOR, array(
-	get_include_path(),
-	'/usr/share/yubikey-val',
-	'/etc/yubico/val',
+    get_include_path(),
+    '/usr/share/yubikey-val',
+    '/etc/yubico/val',
 )));
 
 require_once 'ykval-config.php';
 require_once 'ykval-common.php';
 
-
 $urls = $baseParams['__YKVAL_SYNC_POOL__'];
 
 if ($argc == 2 && strcmp($argv[1], 'autoconf') == 0)
 {
-	if (is_array($urls) && count($urls) > 0)
-	{
-		echo "yes\n";
-		exit(0);
-	}
+    if (is_array($urls) && count($urls) > 0)
+    {
+        echo "yes\n";
+        exit(0);
+    }
 
-	echo "no (sync pool not configured)\n";
-	exit(0);
+    echo "no (sync pool not configured)\n";
+    exit(0);
 }
 
 if (($endpoints = endpoints($urls)) === FALSE)
 {
-	echo "Cannot parse URLs from sync pool list\n";
-	exit(1);
+    echo "Cannot parse URLs from sync pool list\n";
+    exit(1);
 }
 
 if ($argc == 2 && strcmp($argv[1], 'config') == 0)
 {
-	echo "multigraph ykval_vallatency\n";
-	echo "graph_title VAL latency\n";
-	echo "graph_vlabel Average VAL Latency (seconds)\n";
-	echo "graph_category ykval\n";
-	echo "graph_width 400\n";
+    echo "multigraph ykval_vallatency\n";
+    echo "graph_title VAL latency\n";
+    echo "graph_vlabel Average VAL Latency (seconds)\n";
+    echo "graph_category ykval\n";
+    echo "graph_width 400\n";
 
-	foreach ($endpoints as $endpoint)
-	{
-		list($internal, $label, $url) = $endpoint;
+    foreach ($endpoints as $endpoint)
+    {
+        list($internal, $label, $url) = $endpoint;
 
-		echo "${internal}_avgwait.label ${label}\n";
-		echo "${internal}_avgwait.type GAUGE\n";
-		echo "${internal}_avgwait.info Average VAL round-trip latency\n";
-		echo "${internal}_avgwait.min 0\n";
-		echo "${internal}_avgwait.draw LINE1\n";
-	}
+        echo "${internal}_avgwait.label ${label}\n";
+        echo "${internal}_avgwait.type GAUGE\n";
+        echo "${internal}_avgwait.info Average VAL round-trip latency\n";
+        echo "${internal}_avgwait.min 0\n";
+        echo "${internal}_avgwait.draw LINE1\n";
+    }
 
-	exit(0);
+    exit(0);
 }
 
 echo "multigraph ykval_vallatency\n";
 
 foreach ($endpoints as $endpoint)
 {
-	list ($internal, $label, $url) = $endpoint;
+    list ($internal, $label, $url) = $endpoint;
 
-	if (($total_time = total_time($url)) === FALSE)
-		$total_time = 'error';
+    if (($total_time = total_time($url)) === FALSE)
+        $total_time = 'error';
 
-	echo "${internal}_avgwait.value ${total_time}\n";
+    echo "${internal}_avgwait.value ${total_time}\n";
 }
 
 exit(0);
diff --git a/ykval-munin-yubikeystats.php b/ykval-munin-yubikeystats.php
index 0d0a76a..214b512 100755
--- a/ykval-munin-yubikeystats.php
+++ b/ykval-munin-yubikeystats.php
@@ -29,9 +29,9 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 set_include_path(implode(PATH_SEPARATOR, array(
-	get_include_path(),
-	'/usr/share/yubikey-val',
-	'/etc/yubico/val',
+    get_include_path(),
+    '/usr/share/yubikey-val',
+    '/etc/yubico/val',
 )));
 
 require_once 'ykval-config.php';
@@ -39,62 +39,62 @@ require_once 'ykval-db.php';
 
 if ($argc == 2 && strcmp($argv[1], "autoconf") == 0)
 {
-	print "yes\n";
-	exit(0);
+    print "yes\n";
+    exit(0);
 }
 
 if ($argc == 2 && strcmp($argv[1], "config") == 0)
 {
-	echo "graph_title YK-VAL YubiKey stats\n";
-	echo "graph_vlabel Known YubiKeys\n";
-	echo "graph_category ykval\n";
+    echo "graph_title YK-VAL YubiKey stats\n";
+    echo "graph_vlabel Known YubiKeys\n";
+    echo "graph_category ykval\n";
 
-	echo "yubikeys_enabled.label Enabled YubiKeys\n";
-	echo "yubikeys_enabled.draw AREA\n";
+    echo "yubikeys_enabled.label Enabled YubiKeys\n";
+    echo "yubikeys_enabled.draw AREA\n";
 
-	echo "yubikeys_disabled.label Disabled YubiKeys\n";
-	echo "yubikeys_disabled.draw STACK\n";
+    echo "yubikeys_disabled.label Disabled YubiKeys\n";
+    echo "yubikeys_disabled.draw STACK\n";
 
-	echo "yubikeys_1month.label YubiKeys seen last month\n";
-	echo "yubikeys_1month.draw LINE2\n";
+    echo "yubikeys_1month.label YubiKeys seen last month\n";
+    echo "yubikeys_1month.draw LINE2\n";
 
-	echo "clients_enabled.label Enabled validation clients\n";
-	echo "clients_enabled.draw LINE2\n";
+    echo "clients_enabled.label Enabled validation clients\n";
+    echo "clients_enabled.draw LINE2\n";
 
-	echo "clients_disabled.label Disabled validation clients\n";
-	echo "clients_disabled.draw LINE2\n";
+    echo "clients_disabled.label Disabled validation clients\n";
+    echo "clients_disabled.draw LINE2\n";
 
-	exit(0);
+    exit(0);
 }
 
 $db = Db::GetDatabaseHandle($baseParams, 'ykval-munin-yubikeystats');
 if (!$db->connect())
-	logdie($myLog, 'ERROR Database connect error (1)');
+    logdie($myLog, 'ERROR Database connect error (1)');
 
 function get_count($db, $table, $conditions)
 {
-	$res = $db->customQuery("SELECT count(1) as count FROM $table WHERE $conditions");
+    $res = $db->customQuery("SELECT count(1) as count FROM $table WHERE $conditions");
 
-	if ($res)
-	{
-		$r = $res->fetch(PDO::FETCH_ASSOC);
-		return $r['count'];
-	}
+    if ($res)
+    {
+        $r = $res->fetch(PDO::FETCH_ASSOC);
+        return $r['count'];
+    }
 
-	return Null;
+    return Null;
 }
 
 if ($count = get_count($db, 'yubikeys', 'active=true'))
-	echo "yubikeys_enabled.value $count\n";
+    echo "yubikeys_enabled.value $count\n";
 
 if ($count = get_count($db, 'yubikeys', 'active=false'))
-	echo "yubikeys_disabled.value $count\n";
+    echo "yubikeys_disabled.value $count\n";
 
 if ($count = get_count($db, 'yubikeys', 'modified >= ' . (time() - (31 * 86400))))
-	echo "yubikeys_1month.value $count\n";
+    echo "yubikeys_1month.value $count\n";
 
 if ($count = get_count($db, 'clients', 'active=true'))
-	echo "clients_enabled.value $count\n";
+    echo "clients_enabled.value $count\n";
 
 if ($count = get_count($db, 'clients', 'active=false'))
-	echo "clients_disabled.value $count\n";
+    echo "clients_disabled.value $count\n";
diff --git a/ykval-nagios-queuelength.php b/ykval-nagios-queuelength.php
index 4f12c6f..dac8fea 100755
--- a/ykval-nagios-queuelength.php
+++ b/ykval-nagios-queuelength.php
@@ -29,9 +29,9 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 set_include_path(implode(PATH_SEPARATOR, array(
-	get_include_path(),
-	'/usr/share/yubikey-val',
-	'/etc/yubico/val',
+    get_include_path(),
+    '/usr/share/yubikey-val',
+    '/etc/yubico/val',
 )));
 
 require_once 'ykval-synclib.php';
@@ -39,8 +39,8 @@ require_once 'ykval-config.php';
 require_once 'ykval-log.php';
 
 if ($argc != 3) {
-  print "warning and critical levels have to be given on commandline\n";
-  exit (3);
+    print "warning and critical levels have to be given on commandline\n";
+    exit (3);
 }
 
 $warning = $argv[1];
@@ -53,12 +53,12 @@ $len = $sync->getQueueLength ();
 $message = "Queue length is $len";
 
 if($len > $critical) {
-  print("CRITICAL: $message\n");
-  exit (2);
+    print("CRITICAL: $message\n");
+    exit (2);
 } elseif($len > $warning) {
-  print("WARNING: $message\n");
-  exit (1);
+    print("WARNING: $message\n");
+    exit (1);
 } else {
-  print("OK: $message\n");
-  exit (0);
+    print("OK: $message\n");
+    exit (0);
 }
diff --git a/ykval-queue b/ykval-queue
index d1a2fb3..fa3dc1c 100755
--- a/ykval-queue
+++ b/ykval-queue
@@ -56,7 +56,7 @@ if ($sl->getNumberOfServers() === 0 && $sl->getQueueLength() === 0)
 do {
 	$start = time();
 	$sl->reSync($baseParams['__YKVAL_SYNC_OLD_LIMIT__'],
-		$baseParams['__YKVAL_SYNC_RESYNC_TIMEOUT__']);
+                $baseParams['__YKVAL_SYNC_RESYNC_TIMEOUT__']);
 	$duration = time() - $start;
 	$sleep_time = max($baseParams['__YKVAL_SYNC_INTERVAL__'] - $duration, 0);
 } while(sleep($sleep_time)==0);
diff --git a/ykval-resync.php b/ykval-resync.php
index 6b5cbca..a806140 100644
--- a/ykval-resync.php
+++ b/ykval-resync.php
@@ -39,39 +39,39 @@ $myLog = new Log('ykval-resync');
 $myLog->addField('ip', $_SERVER['REMOTE_ADDR']);
 
 if (!in_array ($_SERVER["REMOTE_ADDR"], $baseParams['__YKRESYNC_IPS__'])) {
-  logdie($myLog, "ERROR Authorization failed (logged ". $_SERVER["REMOTE_ADDR"] .")");
+    logdie($myLog, "ERROR Authorization failed (logged ". $_SERVER["REMOTE_ADDR"] .")");
 }
 
 # Parse input
 $yk = $_REQUEST["yk"];
 if (!$yk) {
-  logdie($myLog, "ERROR Missing parameter");
+    logdie($myLog, "ERROR Missing parameter");
 }
 if (!($yk == "all" || is_pubid($yk))) {
-  logdie($myLog, "ERROR Unknown yk value: $yk");
+    logdie($myLog, "ERROR Unknown yk value: $yk");
 }
 $myLog->addField('yk', $yk);
 
 # Connect to db
 $db = Db::GetDatabaseHandle($baseParams, 'ykval-resync');
 if (!$db->connect()) {
-  logdie($myLog, 'ERROR Database connect error (1)');
+    logdie($myLog, 'ERROR Database connect error (1)');
 }
 
 if($yk == "all") {
-  # Get all keys
-  $res = $db->customQuery("SELECT yk_publicname FROM yubikeys WHERE active = true");
-  while($r = $db->fetchArray($res)) {
-    $yubikeys[] = $r['yk_publicname'];
-  }
-  $db->closeCursor($res);
+    # Get all keys
+    $res = $db->customQuery("SELECT yk_publicname FROM yubikeys WHERE active = true");
+    while($r = $db->fetchArray($res)) {
+        $yubikeys[] = $r['yk_publicname'];
+    }
+    $db->closeCursor($res);
 } else {
-  # Check if key exists
-  $r = $db->findBy('yubikeys', 'yk_publicname', $yk, 1);
-  if (!$r) {
-    logdie($myLog, "ERROR Unknown yubikey: $yk");
-  }
-  $yubikeys = array($yk);
+    # Check if key exists
+    $r = $db->findBy('yubikeys', 'yk_publicname', $yk, 1);
+    if (!$r) {
+        logdie($myLog, "ERROR Unknown yubikey: $yk");
+    }
+    $yubikeys = array($yk);
 }
 
 /* Initialize the sync library. */
@@ -80,21 +80,21 @@ $sync->addField('ip', $_SERVER['REMOTE_ADDR']);
 $sync->addField('yk', $yk);
 
 if (! $sync->isConnected()) {
-  logdie($myLog, 'ERROR Database connect error (2)');
+    logdie($myLog, 'ERROR Database connect error (2)');
 }
 
 foreach($yubikeys as $key) {
-  if (($localParams = $sync->getLocalParams($key)) === FALSE) {
-    logdie($myLog, 'ERROR Invalid Yubikey ' . $key);
-  }
+    if (($localParams = $sync->getLocalParams($key)) === FALSE) {
+        logdie($myLog, 'ERROR Invalid Yubikey ' . $key);
+    }
 
-  $localParams['otp'] = $key . str_repeat('c', 32); // Fake an OTP, only used for logging.
-  $myLog->log(LOG_DEBUG, "Auth data:", $localParams);
+    $localParams['otp'] = $key . str_repeat('c', 32); // Fake an OTP, only used for logging.
+    $myLog->log(LOG_DEBUG, "Auth data:", $localParams);
 
-  /* Queue sync request */
-  if (!$sync->queue($localParams, $localParams)) {
-    logdie($myLog, 'ERROR Failed resync');
-  }
+    /* Queue sync request */
+    if (!$sync->queue($localParams, $localParams)) {
+        logdie($myLog, 'ERROR Failed resync');
+    }
 }
 
 # We are done
diff --git a/ykval-revoke.php b/ykval-revoke.php
index 6cd77f7..84cbaed 100644
--- a/ykval-revoke.php
+++ b/ykval-revoke.php
@@ -38,38 +38,38 @@ $myLog = new Log('ykval-revoke');
 $myLog->addField('ip', $_SERVER['REMOTE_ADDR']);
 
 if (!in_array ($_SERVER["REMOTE_ADDR"], $baseParams['__YKREV_IPS__'])) {
-  logdie($myLog, "ERROR Authorization failed (logged ". $_SERVER["REMOTE_ADDR"] .")");
+    logdie($myLog, "ERROR Authorization failed (logged ". $_SERVER["REMOTE_ADDR"] .")");
 }
 
 # Parse input
 $yk = $_REQUEST["yk"];
 $do = $_REQUEST["do"];
 if (!$yk || !$do) {
-  logdie($myLog, "ERROR Missing parameter");
+    logdie($myLog, "ERROR Missing parameter");
 }
 if (!is_pubid($yk)) {
-  logdie($myLog, "ERROR Unknown yk value: $yk");
+    logdie($myLog, "ERROR Unknown yk value: $yk");
 }
 if ($do != "enable" && $do != "disable") {
-  logdie($myLog, "ERROR Unknown do value: $do");
+    logdie($myLog, "ERROR Unknown do value: $do");
 }
 
 # Connect to db
 $db = Db::GetDatabaseHandle($baseParams, 'ykval-revoke');
 if (!$db->connect()) {
-  logdie($myLog, "ERROR Database connect error");
+    logdie($myLog, "ERROR Database connect error");
 }
 
 # Check if key exists
 $r = $db->findBy('yubikeys', 'yk_publicname', $yk, 1);
 if (!$r) {
-  logdie($myLog, "ERROR Unknown yubikey: $yk");
+    logdie($myLog, "ERROR Unknown yubikey: $yk");
 }
 
 # Enable/Disable the yubikey
 if (!$db->updateBy('yubikeys', 'yk_publicname', $yk,
-		   array('active'=>($do == "enable" ? "1" : "0")))) {
-  logdie($myLog, "ERROR Could not $do for $yk");
+                   array('active'=>($do == "enable" ? "1" : "0")))) {
+    logdie($myLog, "ERROR Could not $do for $yk");
 }
 
 # We are done
diff --git a/ykval-sync.php b/ykval-sync.php
index 8cf2b03..987e496 100644
--- a/ykval-sync.php
+++ b/ykval-sync.php
@@ -43,43 +43,43 @@ $myLog->log(LOG_DEBUG, "Received request from $ipaddr");
 
 if (empty($_SERVER['QUERY_STRING']))
 {
-	sendResp(S_MISSING_PARAMETER, $myLog);
+    sendResp(S_MISSING_PARAMETER, $myLog);
 }
 
 // verify request sent by whitelisted address
 if (in_array($ipaddr, $allowed, TRUE) === FALSE)
 {
-	$myLog->log(LOG_NOTICE, "Operation not allowed from IP $ipaddr");
-	$myLog->log(LOG_DEBUG, "Remote IP $ipaddr not listed in allowed sync pool : " . implode(', ', $allowed));
-	sendResp(S_OPERATION_NOT_ALLOWED, $myLog);
+    $myLog->log(LOG_NOTICE, "Operation not allowed from IP $ipaddr");
+    $myLog->log(LOG_DEBUG, "Remote IP $ipaddr not listed in allowed sync pool : " . implode(', ', $allowed));
+    sendResp(S_OPERATION_NOT_ALLOWED, $myLog);
 }
 
 // define requirements on protocol
 $syncParams = array(
-	'modified' => NULL,
-	'otp' => NULL,
-	'nonce' => NULL,
-	'yk_publicname' => NULL,
-	'yk_counter' => NULL,
-	'yk_use' => NULL,
-	'yk_high' => NULL,
-	'yk_low' => NULL
+    'modified' => NULL,
+    'otp' => NULL,
+    'nonce' => NULL,
+    'yk_publicname' => NULL,
+    'yk_counter' => NULL,
+    'yk_use' => NULL,
+    'yk_high' => NULL,
+    'yk_low' => NULL
 );
 
 // extract values from HTTP request
 $tmp_log = 'Received ';
 foreach ($syncParams as $param => $value)
 {
-	$value = getHttpVal($param, NULL, $_GET);
+    $value = getHttpVal($param, NULL, $_GET);
 
-	if ($value == NULL)
-	{
-		$myLog->log(LOG_NOTICE, "Received request with parameter[s] ($param) missing value");
-		sendResp(S_MISSING_PARAMETER, $myLog);
-	}
+    if ($value == NULL)
+    {
+        $myLog->log(LOG_NOTICE, "Received request with parameter[s] ($param) missing value");
+        sendResp(S_MISSING_PARAMETER, $myLog);
+    }
 
-	$syncParams[$param] = $value;
-	$tmp_log .= "$param=$value ";
+    $syncParams[$param] = $value;
+    $tmp_log .= "$param=$value ";
 }
 $myLog->log(LOG_INFO, $tmp_log);
 
@@ -89,7 +89,7 @@ $sync->addField('ip', $ipaddr);
 
 if (! $sync->isConnected())
 {
-	sendResp(S_BACKEND_ERROR, $myLog);
+    sendResp(S_BACKEND_ERROR, $myLog);
 }
 
 // at this point we should have the otp so let's add it to the logging module
@@ -98,34 +98,34 @@ $myLog->addField('otp', $syncParams['otp']);
 // Verify correctness of numeric input parameters
 foreach (array('modified','yk_counter', 'yk_use', 'yk_high', 'yk_low') as $param)
 {
-	// -1 is valid except for modified
-	if ($param !== 'modified' && $syncParams[$param] === '-1')
-		continue;
+    // -1 is valid except for modified
+    if ($param !== 'modified' && $syncParams[$param] === '-1')
+        continue;
 
-	// [0-9]+
-	if ($syncParams[$param] !== '' && ctype_digit($syncParams[$param]))
-		continue;
+    // [0-9]+
+    if ($syncParams[$param] !== '' && ctype_digit($syncParams[$param]))
+        continue;
 
-	$myLog->log(LOG_NOTICE, "Input parameters $param not correct");
-	sendResp(S_MISSING_PARAMETER, $myLog);
+    $myLog->log(LOG_NOTICE, "Input parameters $param not correct");
+    sendResp(S_MISSING_PARAMETER, $myLog);
 }
 
 // Verify correctness of OTP input
 if (!is_otp($syncParams['otp'])) {
-	$myLog->log(LOG_NOTICE, "Input parameter " . $syncParams['otp'] . " not correct");
-	sendResp(S_MISSING_PARAMETER, $myLog);
+    $myLog->log(LOG_NOTICE, "Input parameter " . $syncParams['otp'] . " not correct");
+    sendResp(S_MISSING_PARAMETER, $myLog);
 }
 
 // Verify correctness of pubid input
 if (!is_pubid($syncParams['yk_publicname'])) {
-	$myLog->log(LOG_NOTICE, "Input parameter " . $syncParams['yk_publicname'] . " not correct");
-	sendResp(S_MISSING_PARAMETER, $myLog);
+    $myLog->log(LOG_NOTICE, "Input parameter " . $syncParams['yk_publicname'] . " not correct");
+    sendResp(S_MISSING_PARAMETER, $myLog);
 }
 
 // Verify correctness of nonce input
 if (!is_nonce($syncParams['nonce'])) {
-	$myLog->log(LOG_NOTICE, "Input parameter " . $syncParams['nonce'] . " not correct");
-	sendResp(S_MISSING_PARAMETER, $myLog);
+    $myLog->log(LOG_NOTICE, "Input parameter " . $syncParams['nonce'] . " not correct");
+    sendResp(S_MISSING_PARAMETER, $myLog);
 }
 
 // get local counter data
@@ -133,8 +133,8 @@ $sync->addField('otp', $syncParams['otp']);
 $yk_publicname = $syncParams['yk_publicname'];
 if (($localParams = $sync->getLocalParams($yk_publicname)) === FALSE)
 {
-	$myLog->log(LOG_NOTICE, "Invalid Yubikey $yk_publicname");
-	sendResp(S_BACKEND_ERROR, $myLog);
+    $myLog->log(LOG_NOTICE, "Invalid Yubikey $yk_publicname");
+    sendResp(S_BACKEND_ERROR, $myLog);
 }
 
 // conditional update local database
@@ -145,60 +145,60 @@ $myLog->log(LOG_DEBUG, 'Sync request params ', $syncParams);
 
 if ($sync->countersHigherThan($localParams, $syncParams))
 {
-	$myLog->log(LOG_WARNING, 'Remote server out of sync.');
+    $myLog->log(LOG_WARNING, 'Remote server out of sync.');
 }
 
 if ($sync->countersEqual($localParams, $syncParams))
 {
-	if ($syncParams['modified'] == $localParams['modified']
-		&& $syncParams['nonce'] == $localParams['nonce'])
-	{
-		/**
-		 * This is not an error. When the remote server received an OTP to verify, it would
-		 * have sent out sync requests immediately. When the required number of responses had
-		 * been received, the current implementation discards all additional responses (to
-		 * return the result to the client as soon as possible). If our response sent last
-		 * time was discarded, we will end up here when the background ykval-queue processes
-		 * the sync request again.
-		 */
-		$myLog->log(LOG_INFO, 'Sync request unnecessarily sent');
-	}
+    if ($syncParams['modified'] == $localParams['modified']
+        && $syncParams['nonce'] == $localParams['nonce'])
+    {
+        /**
+         * This is not an error. When the remote server received an OTP to verify, it would
+         * have sent out sync requests immediately. When the required number of responses had
+         * been received, the current implementation discards all additional responses (to
+         * return the result to the client as soon as possible). If our response sent last
+         * time was discarded, we will end up here when the background ykval-queue processes
+         * the sync request again.
+         */
+        $myLog->log(LOG_INFO, 'Sync request unnecessarily sent');
+    }
 
-	if ($syncParams['modified'] != $localParams['modified']
-		&& $syncParams['nonce'] == $localParams['nonce'])
-	{
-		$deltaModified = $syncParams['modified'] - $localParams['modified'];
+    if ($syncParams['modified'] != $localParams['modified']
+        && $syncParams['nonce'] == $localParams['nonce'])
+    {
+        $deltaModified = $syncParams['modified'] - $localParams['modified'];
 
-		if ($deltaModified < -1 || $deltaModified > 1)
-		{
-			$myLog->log(LOG_WARNING, "We might have a replay. 2 events at different times have generated the same counters. The time difference is $deltaModified seconds");
-		}
-	}
+        if ($deltaModified < -1 || $deltaModified > 1)
+        {
+            $myLog->log(LOG_WARNING, "We might have a replay. 2 events at different times have generated the same counters. The time difference is $deltaModified seconds");
+        }
+    }
 
-	if ($syncParams['nonce'] != $localParams['nonce'])
-	{
-		$myLog->log(LOG_WARNING, 'Remote server has received a request to validate an already validated OTP');
-	}
+    if ($syncParams['nonce'] != $localParams['nonce'])
+    {
+        $myLog->log(LOG_WARNING, 'Remote server has received a request to validate an already validated OTP');
+    }
 }
 
 if ($localParams['active'] != 1)
 {
-	/**
-	 * The remote server has accepted an OTP from a YubiKey which we would not.
-	 * We still needed to update our counters with the counters from the OTP though.
-	 */
-	$myLog->log(LOG_WARNING, "Received sync-request for de-activated Yubikey $yk_publicname - check database synchronization!!!");
-	sendResp(S_BAD_OTP, $myLog);
+    /**
+     * The remote server has accepted an OTP from a YubiKey which we would not.
+     * We still needed to update our counters with the counters from the OTP though.
+     */
+    $myLog->log(LOG_WARNING, "Received sync-request for de-activated Yubikey $yk_publicname - check database synchronization!!!");
+    sendResp(S_BAD_OTP, $myLog);
 }
 
 $extra = array(
-	'modified' => $localParams['modified'],
-	'nonce' => $localParams['nonce'],
-	'yk_publicname' => $yk_publicname,
-	'yk_counter' => $localParams['yk_counter'],
-	'yk_use' => $localParams['yk_use'],
-	'yk_high' => $localParams['yk_high'],
-	'yk_low' => $localParams['yk_low']
+    'modified' => $localParams['modified'],
+    'nonce' => $localParams['nonce'],
+    'yk_publicname' => $yk_publicname,
+    'yk_counter' => $localParams['yk_counter'],
+    'yk_use' => $localParams['yk_use'],
+    'yk_high' => $localParams['yk_high'],
+    'yk_low' => $localParams['yk_low']
 );
 
 sendResp(S_OK, $myLog, '', $extra);
diff --git a/ykval-synchronize b/ykval-synchronize
index fff81ac..ce93c03 100755
--- a/ykval-synchronize
+++ b/ykval-synchronize
@@ -29,23 +29,23 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 if($argc != 3 || !( $argv[2] == 'all' || preg_match('/^[cbdefghijklnrtuv]{0,16}$/', $argv[2]))) {
-  echo "Usage: ".$argv[0]." URL KEY\n\n";
-  echo "URL: URL of resync service.\n\n";
-  echo "KEY: Public identifier of a YubiKey to sync, or \"all\".\n\n";
-  echo "Usage example:\n\n";
-  echo $argv[0]." http://example.com/wsapi/2.0/resync ccccccccccdn\n";
-  exit(1);
+    echo "Usage: ".$argv[0]." URL KEY\n\n";
+    echo "URL: URL of resync service.\n\n";
+    echo "KEY: Public identifier of a YubiKey to sync, or \"all\".\n\n";
+    echo "Usage example:\n\n";
+    echo $argv[0]." http://example.com/wsapi/2.0/resync ccccccccccdn\n";
+    exit(1);
 }
 
 $host = $argv[1];
 $yk = $argv[2];
 
 if(!preg_match('~^https?://~', $host)) {
-  #Allow just an IP or host
-  if(strpos($host, "/") == False) {
-    $host = $host."/wsapi/2.0/resync";
-  }
-  $host = "http://".$host;
+    #Allow just an IP or host
+    if(strpos($host, "/") == False) {
+        $host = $host."/wsapi/2.0/resync";
+    }
+    $host = "http://".$host;
 }
 
 $url = $host."?yk=".$yk;
@@ -59,7 +59,7 @@ curl_setopt($ch, CURLOPT_FAILONERROR, true);
 
 $response = curl_exec($ch);
 if($response == False) {
-  die("error");
+    die("error");
 }
 
 echo $response;
diff --git a/ykval-synclib.php b/ykval-synclib.php
index 412ec61..9dcddee 100644
--- a/ykval-synclib.php
+++ b/ykval-synclib.php
@@ -33,651 +33,651 @@ require_once 'ykval-db.php';
 require_once 'ykval-log.php';
 
 function _get($arr, $key) {
-	return array_key_exists($key, $arr) ? $arr[$key] : "?";
+    return array_key_exists($key, $arr) ? $arr[$key] : "?";
 }
 
 class SyncLib
 {
-	public $syncServers = array();
-	public $dbConn = null;
-	public $curlopts = array();
-
-	public function __construct($logname='ykval-synclib')
-	{
-		$this->myLog = new Log($logname);
-		global $baseParams;
-		$this->syncServers = $baseParams['__YKVAL_SYNC_POOL__'];
-		$this->db = Db::GetDatabaseHandle($baseParams, $logname);
-		$this->isConnected=$this->db->connect();
-		$this->server_nonce=md5(uniqid(rand()));
-
-		if (array_key_exists('__YKVAL_SYNC_CURL_OPTS__', $baseParams))
-		{
-			$this->curlopts = $baseParams['__YKVAL_SYNC_CURL_OPTS__'];
-		}
-	}
-
-	public function addField($name, $value)
-	{
-		$this->myLog->addField($name, $value);
-		$this->db->addField($name, $value);
-	}
-
-	public function isConnected()
-	{
-		return $this->isConnected;
-	}
-
-	public function getNumberOfServers()
-	{
-		return count($this->syncServers);
-	}
-
-	public function getNumberOfValidAnswers()
-	{
-		if (isset($this->valid_answers))
-			return $this->valid_answers;
-
-		return 0;
-	}
-
-	public function getNumberOfAnswers()
-	{
-		if (isset($this->answers))
-			return $this->answers;
-
-		return 0;
-	}
-
-	public function getClientData($client)
-	{
-		$res = $this->db->customQuery("SELECT id, secret FROM clients WHERE active='1' AND id='" . $client . "'");
-		$r = $this->db->fetchArray($res);
-		$this->db->closeCursor($res);
-
-		if ($r)
-			return $r;
-
-		return false;
-	}
-
-	public function getQueueLength()
-	{
-		return count($this->db->findBy('queue', null, null, null));
-	}
-
-	public function getQueueLengthByServer()
-	{
-		$counters = array();
-
-		foreach ($this->syncServers as $server)
-		{
-			$counters[$server] = 0;
-		}
-
-		$result = $this->db->customQuery('SELECT server, COUNT(server) as count FROM queue GROUP BY server');
-
-		while ($row = $this->db->fetchArray($result))
-		{
-			$counters[$row['server']] = $row['count'];
-		}
-
-		$this->db->closeCursor($result);
-
-		return $counters;
-	}
-
-	public function queue($otpParams, $localParams)
-	{
-		$info = $this->createInfoString($otpParams, $localParams);
-		$this->otpParams = $otpParams;
-		$this->localParams = $localParams;
-
-		$queued = time();
-		$result = true;
-
-		foreach ($this->syncServers as $server)
-		{
-			$arr = array(
-				'queued' => $queued,
-				'modified' => $otpParams['modified'],
-				'otp' => $otpParams['otp'],
-				'server' => $server,
-				'server_nonce' => $this->server_nonce,
-				'info' => $info
-			);
-
-			if (! $this->db->save('queue', $arr))
-				$result = false;
-		}
-
-		return $result;
-	}
-
-	public function log($priority, $msg, $params=NULL)
-	{
-		if ($params)
-			$msg .= ' modified=' . _get($params, 'modified') .
-				' nonce=' . _get($params, 'nonce') .
-				' yk_publicname=' . _get($params, 'yk_publicname') .
-				' yk_counter=' . _get($params, 'yk_counter') .
-				' yk_use=' . _get($params, 'yk_use') .
-				' yk_high=' . _get($params, 'yk_high') .
-				' yk_low=' . _get($params, 'yk_low');
-
-		if ($this->myLog)
-			$this->myLog->log($priority, $msg);
-		else
-			error_log("Warning: myLog uninitialized in ykval-synclib.php. Message is " . $msg);
-	}
-
-	public function getLocalParams($yk_publicname)
-	{
-		$this->log(LOG_DEBUG, "searching for yk_publicname $yk_publicname in local db");
-
-		$res = $this->db->findBy('yubikeys', 'yk_publicname', $yk_publicname, 1);
-
-		if (!$res)
-		{
-			$this->log(LOG_NOTICE, "Discovered new identity $yk_publicname");
-
-			$this->db->save('yubikeys', array(
-				'active' => 1,
-				'created' => time(),
-				'modified' => -1,
-				'yk_publicname' => $yk_publicname,
-				'yk_counter' => -1,
-				'yk_use' => -1,
-				'yk_low' => -1,
-				'yk_high' => -1,
-				'nonce' => '0000000000000000',
-				'notes' => ''
-			));
-
-			$res = $this->db->findBy('yubikeys', 'yk_publicname', $yk_publicname, 1);
-		}
-
-		if ($res)
-		{
-			$localParams = array(
-				'modified' => $res['modified'],
-				'nonce' => $res['nonce'],
-				'active' => $res['active'],
-				'yk_publicname' => $yk_publicname,
-				'yk_counter' => $res['yk_counter'],
-				'yk_use' => $res['yk_use'],
-				'yk_high' => $res['yk_high'],
-				'yk_low' => $res['yk_low']
-			);
-
-			$this->log(LOG_INFO, "yubikey found in db ", $localParams);
-			return $localParams;
-		}
-
-		$this->log(LOG_NOTICE, "params for yk_publicname $yk_publicname not found in database");
-		return false;
-	}
-
-	public function updateDbCounters($params)
-	{
-		if (!isset($params['yk_publicname']))
-			return false;
-
-		$arr = array(
-			'modified' => $params['modified'],
-			'yk_counter' => $params['yk_counter'],
-			'yk_use' => $params['yk_use'],
-			'yk_low' => $params['yk_low'],
-			'yk_high' => $params['yk_high'],
-			'nonce' => $params['nonce']
-		);
-
-		$condition = '('.$params['yk_counter'].'>yk_counter or ('.$params['yk_counter'].'=yk_counter and ' . $params['yk_use'] . '>yk_use))';
-
-		if (! $this->db->conditionalUpdateBy('yubikeys', 'yk_publicname', $params['yk_publicname'], $arr, $condition))
-		{
-			$this->log(LOG_CRIT, 'failed to update internal DB with new counters');
-			return false;
-		}
-
-		if ($this->db->rowCount() > 0)
-			$this->log(LOG_INFO, 'updated database ', $params);
-		else
-			$this->log(LOG_INFO, 'database not updated', $params);
-
-		return true;
-	}
-
-	public function countersHigherThan($p1, $p2)
-	{
-		if ($p1['yk_counter'] > $p2['yk_counter'])
-			return true;
-
-		if ($p1['yk_counter'] == $p2['yk_counter'] && $p1['yk_use'] > $p2['yk_use'])
-			return true;
-
-		return false;
-	}
-
-	public function countersHigherThanOrEqual($p1, $p2)
-	{
-		if ($p1['yk_counter'] > $p2['yk_counter'])
-			return true;
-
-		if ($p1['yk_counter'] == $p2['yk_counter'] && $p1['yk_use'] >= $p2['yk_use'])
-			return true;
-
-		return false;
-	}
-
-	public function countersEqual($p1, $p2)
-	{
-		return ($p1['yk_counter'] == $p2['yk_counter'] && $p1['yk_use'] == $p2['yk_use']);
-	}
-
-	// queue daemon
-	public function reSync($older_than, $timeout)
-	{
-		$this->log(LOG_DEBUG, 'starting resync');
-
-		/* Loop over all unique servers in queue */
-		$queued_limit = time()-$older_than;
-		$server_res = $this->db->customQuery("select distinct server from queue WHERE queued < " . $queued_limit . " or queued is null");
-		$server_list = array();
-		$mh = curl_multi_init();
-		$ch = array();
-		$entries = array();
-		$handles = 0;
-		$num_per_server = 4;
-		$curlopts = $this->curlopts;
-
-		while ($my_server = $this->db->fetchArray($server_res))
-		{
-			$server = $my_server['server'];
-			$this->log(LOG_DEBUG, "Processing queue for server " . $server);
-
-			$res = $this->db->customQuery("select * from queue WHERE (queued < " . $queued_limit . " or queued is null) and server='" . $server . "' LIMIT 1000");
-
-			$list = array();
-
-			while ($entry = $this->db->fetchArray($res))
-			{
-				$list[] = $entry;
-			}
-			$server_list[$server] = $list;
-
-			$this->db->closeCursor($res);
-		}
-		$this->db->closeCursor($server_res);
-
-		/* add up to n entries for each server we're going to sync */
-		foreach ($server_list as $server) {
-			$items = array_slice($server, 0, $num_per_server);
-			$counter = 0;
-			foreach ($items as $entry) {
-				$label = "{$entry['server']}:$counter";
-				$handle = curl_init();
-				$ch[$label] = $handle;
-				$counter++;
-				$this->log(LOG_INFO, "server=" . $entry['server'] . ", server_nonce=" . $entry['server_nonce'] . ", info=" . $entry['info']);
-
-				$url = $this->buildSyncUrl($entry);
-
-				$curlopts[CURLOPT_PRIVATE] = $label;
-
-				curl_settings($this, 'YK-VAL resync', $handle, $url, $timeout, $curlopts);
-				$entries[$label] = $entry;
-				curl_multi_add_handle($mh, $handle);
-				$handles++;
-			}
-			$empty = array();
-			array_splice($server, 0, $num_per_server, $empty);
-			if(count($server) == 0) {
-				unset($server_list[$entry['server']]);
-			}
-		}
-
-		while($handles > 0) {
-			while (curl_multi_exec($mh, $active) == CURLM_CALL_MULTI_PERFORM);
-
-			while ($info = curl_multi_info_read($mh)) {
-				$handle = $info['handle'];
-				$server = strtok(curl_getinfo($handle, CURLINFO_EFFECTIVE_URL), "?");
-				$label = curl_getinfo($handle, CURLINFO_PRIVATE);
-				$entry = $entries[$label];
-				$this->log(LOG_DEBUG, "handle indicated to be for $server.");
-				curl_multi_remove_handle($mh, $handle);
-				$handles--;
-				if ($info['result'] === CURLE_OK) {
-					$response = curl_multi_getcontent($handle);
-					if (preg_match('/status=OK/', $response))
-					{
-						$resParams = $this->parseParamsFromMultiLineString($response);
-						$this->log(LOG_DEBUG, 'response contains ', $resParams);
-
-						/* Update database counters */
-						$this->updateDbCounters($resParams);
-
-						/* Retrieve info from entry info string */
-
-						/* This is the counter values we had in our database *before* processing the current OTP. */
-						$validationParams = $this->localParamsFromInfoString($entry['info']);
-
-						/* This is the data from the current OTP. */
-						$otpParams = $this->otpParamsFromInfoString($entry['info']);
-
-						/* Fetch current information from our database */
-						$localParams = $this->getLocalParams($otpParams['yk_publicname']);
-
-						$this->log(LOG_DEBUG, 'validation params: ', $validationParams);
-						$this->log(LOG_DEBUG, 'OTP params: ', $otpParams);
-
-						/* Check for warnings  */
-
-						if ($this->countersHigherThan($validationParams, $resParams))
-						{
-							$this->log(LOG_NOTICE, 'Remote server out of sync compared to counters at validation request time. ');
-						}
-
-						if ($this->countersHigherThan($resParams, $validationParams))
-						{
-							if ($this->countersEqual($resParams, $otpParams))
-							{
-								$this->log(LOG_INFO, 'Remote server had received the current counter values already. ');
-							}
-							else
-							{
-								$this->log(LOG_NOTICE, 'Local server out of sync compared to counters at validation request time. ');
-							}
-						}
-
-						if ($this->countersHigherThan($localParams, $resParams))
-						{
-							$this->log(LOG_WARNING, 'Remote server out of sync compared to current local counters.  ');
-						}
-
-						if ($this->countersHigherThan($resParams, $localParams))
-						{
-							$this->log(LOG_WARNING, 'Local server out of sync compared to current local counters. Local server updated. ');
-						}
-
-						if ($this->countersHigherThan($resParams, $otpParams))
-						{
-							$this->log(LOG_ERR, 'Remote server has higher counters than OTP. This response would have marked the OTP as invalid. ');
-						}
-						elseif ($this->countersEqual($resParams, $otpParams) && $resParams['nonce'] != $otpParams['nonce'])
-						{
-							$this->log(LOG_ERR, 'Remote server has equal counters as OTP and nonce differs. This response would have marked the OTP as invalid.');
-						}
-
-						/* Deletion */
-						$this->log(LOG_DEBUG, 'deleting queue entry with modified=' . $entry['modified'] .
-							' server_nonce=' . $entry['server_nonce'] .
-							' server=' . $entry['server']);
-
-						$this->db->deleteByMultiple('queue', array(
-							'modified' => $entry['modified'],
-							'server_nonce' => $entry['server_nonce'],
-							'server' => $entry['server']
-						));
-
-					}
-					else if (preg_match('/status=BAD_OTP/', $response))
-					{
-						$this->log(LOG_WARNING, 'Remote server says BAD_OTP, pointless to try again, removing from queue.');
-						$this->db->deleteByMultiple('queue', array(
-							'modified' => $entry['modified'],
-							'server_nonce' => $entry['server_nonce'],
-							'server' => $entry['server']
-						));
-					}
-					else
-					{
-						$this->log(LOG_ERR, 'Remote server refused our sync request. Check remote server logs.');
-					}
-
-					if (array_key_exists($server, $server_list)) {
-						$entry = array_shift($server_list[$server]);
-						if(count($server_list[$server]) == 0) {
-							$this->log(LOG_DEBUG, "All entries for $server synced.");
-							unset($server_list[$server]);
-						}
-						$this->log(LOG_INFO, "server=" . $entry['server'] . ", server_nonce=" . $entry['server_nonce'] . ", info=" . $entry['info']);
-
-						$url = $this->buildSyncUrl($entry);
-
-						$curlopts[CURLOPT_PRIVATE] = $label;
-						curl_settings($this, 'YK-VAL resync', $handle, $url, $timeout, $curlopts);
-						$entries[$label] = $entry;
-						curl_multi_add_handle($mh, $handle);
-						$handles++;
-					}
-				} else {
-					$this->log(LOG_NOTICE, 'Timeout. Stopping queue resync for server ' . $entry['server']);
-					unset($server_list[$server]);
-				}
-			}
-		}
-
-		foreach ($ch as $handle) {
-			curl_close($handle);
-		}
-
-		curl_multi_close($mh);
-
-		return true;
-	}
-
-	// blocks verify requests
-	public function sync($ans_req, $timeout=1)
-	{
-		// construct URLs
-		$urls = array();
-		$res = $this->db->findByMultiple('queue', array(
-			'modified'     => $this->otpParams['modified'],
-			'server_nonce' => $this->server_nonce
-		));
-		foreach ($res as $row)
-		{
-			$urls[] = $this->buildSyncUrl($row);
-		}
-
-		// send out requests
-		$ans_arr = retrieveURLasync('YK-VAL sync', $urls, $this->myLog, $ans_req, $match='status=OK', $returl=True, $timeout, $this->curlopts);
-
-		if ($ans_arr === FALSE)
-		{
-			$this->log(LOG_WARNING, 'No responses from validation server pool');
-			$ans_arr = array();
-		}
-
-		// parse responses
-		$localParams = $this->localParams;
-
-		$this->answers = count($ans_arr);
-		$this->valid_answers = 0;
-
-		foreach ($ans_arr as $answer)
-		{
-			// parse out parameters from each response
-			$resParams=$this->parseParamsFromMultiLineString($answer);
-			$this->log(LOG_DEBUG, 'local db contains ', $localParams);
-			$this->log(LOG_DEBUG, 'response contains ', $resParams);
-			$this->log(LOG_DEBUG, 'OTP contains ', $this->otpParams);
-
-			// update internal DB (conditional)
-			$this->updateDbCounters($resParams);
-
-			/**
-			 * Check for warnings
-			 *
-			 * See https://developers.yubico.com/yubikey-val/doc/ServerReplicationProtocol.html
-			 *
-			 * NOTE: We use localParams for validationParams comparison since they are actually the
-			 *	same in this situation and we have them at hand.
-			 */
-
-			if ($this->countersHigherThan($localParams, $resParams))
-			{
-				$this->log(LOG_NOTICE, 'Remote server out of sync');
-			}
-
-			if ($this->countersHigherThan($resParams, $localParams))
-			{
-				$this->log(LOG_NOTICE, 'Local server out of sync');
-			}
-
-			if ($this->countersEqual($resParams, $localParams) && $resParams['nonce'] != $localParams['nonce'])
-			{
-				$this->log(LOG_NOTICE, 'Servers out of sync. Nonce differs. ');
-			}
-
-			if ($this->countersEqual($resParams, $localParams) && $resParams['modified'] != $localParams['modified'])
-			{
-				$this->log(LOG_NOTICE, 'Servers out of sync. Modified differs. ');
-			}
-
-			if ($this->countersHigherThan($resParams, $this->otpParams))
-			{
-				$this->log(LOG_WARNING, 'OTP is replayed. Sync response counters higher than OTP counters.');
-			}
-			elseif ($this->countersEqual($resParams, $this->otpParams) && $resParams['nonce'] != $this->otpParams['nonce'])
-			{
-				$this->log(LOG_WARNING, 'OTP is replayed. Sync response counters equal to OTP counters and nonce differs.');
-			}
-			else
-			{
-				// the answer is ok since a REPLAY was not indicated
-				$this->valid_answers++;
-			}
-
-			// delete entry from table
-			$this->deleteQueueEntry($answer);
-		}
-
-		/**
-		 * NULL queued_time for remaining entries in queue, to allow
-		 *	daemon to take care of them as soon as possible.
-		 */
-		$this->db->updateBy('queue', 'server_nonce', $this->server_nonce, array('queued'=>NULL));
-
-		/**
-		 * Return true if valid answers equals required answers.
-		 *	Since we only obtain the required amount of answers from
-		 *	retrieveAsync this indicates that all answers were actually valid.
-		 *	Otherwise, return false.
-		 */
-		if ($this->valid_answers == $ans_req)
-			return true;
-
-		return false;
-	}
-
-	private function createInfoString($otpParams, $localParams)
-	{
-		# FIXME &local_counter
-		return 'yk_publicname=' . $otpParams['yk_publicname'] .
-			'&yk_counter=' . $otpParams['yk_counter'] .
-			'&yk_use=' . $otpParams['yk_use'] .
-			'&yk_high=' . $otpParams['yk_high'] .
-			'&yk_low=' . $otpParams['yk_low'] .
-			'&nonce=' . $otpParams['nonce'] .
-			',local_counter=' . $localParams['yk_counter'] .
-			'&local_use=' . $localParams['yk_use'];
-	}
-
-	private function otpParamsFromInfoString($info)
-	{
-		$out = explode(',', $info);
-		parse_str($out[0], $params);
-		return $params;
-	}
-
-	private function otpPartFromInfoString($info)
-	{
-		$out = explode(',', $info);
-		return $out[0];
-	}
-
-	private function localParamsFromInfoString($info)
-	{
-		$out = explode(',', $info);
-		parse_str($out[1], $params);
-
-		return array(
-			'yk_counter' => $params['local_counter'],
-			'yk_use' => $params['local_use']
-		);
-	}
-
-	private function parseParamsFromMultiLineString($str)
-	{
-		$i = preg_match("/^modified=(-1|[0-9]+)/m", $str, $out);
-		if ($i != 1) {
-			$this->log(LOG_ALERT, "cannot parse modified value: $str");
-		}
-		$resParams['modified']=$out[1];
-
-		$i = preg_match("/^yk_publicname=([cbdefghijklnrtuv]+)/m", $str, $out);
-		if ($i != 1) {
-			$this->log(LOG_ALERT, "cannot parse publicname value: $str");
-		}
-		$resParams['yk_publicname']=$out[1];
-
-		$i = preg_match("/^yk_counter=(-1|[0-9]+)/m", $str, $out);
-		if ($i != 1) {
-			$this->log(LOG_ALERT, "cannot parse counter value: $str");
-		}
-		$resParams['yk_counter']=$out[1];
-
-		$i = preg_match("/^yk_use=(-1|[0-9]+)/m", $str, $out);
-		if ($i != 1) {
-			$this->log(LOG_ALERT, "cannot parse use value: $str");
-		}
-		$resParams['yk_use']=$out[1];
-
-		$i = preg_match("/^yk_high=(-1|[0-9]+)/m", $str, $out);
-		if ($i != 1) {
-			$this->log(LOG_ALERT, "cannot parse high value: $str");
-		}
-		$resParams['yk_high']=$out[1];
-
-		$i = preg_match("/^yk_low=(-1|[0-9]+)/m", $str, $out);
-		if ($i != 1) {
-			$this->log(LOG_ALERT, "cannot parse low value: $str");
-		}
-		$resParams['yk_low']=$out[1];
-
-		$i = preg_match("/^nonce=([[:alnum:]]+)/m", $str, $out);
-		if ($i != 1) {
-			$this->log(LOG_ALERT, "cannot parse nonce value: $str");
-		}
-		$resParams['nonce']=$out[1];
-
-		return $resParams;
-	}
-
-	private function deleteQueueEntry($answer)
-	{
-		preg_match('/url=(.*)\?/', $answer, $out);
-		$server = $out[1];
-
-		$this->log(LOG_INFO, "deleting server=" . $server .
-				" modified=" . $this->otpParams['modified'] .
-				" server_nonce=" . $this->server_nonce);
-
-		$this->db->deleteByMultiple('queue', array(
-			'modified' => $this->otpParams['modified'],
-			'server_nonce' => $this->server_nonce,
-			'server' => $server
-		));
-	}
-
-	private function buildSyncUrl($entry)
-	{
-		return $entry['server'] .
-			"?otp=" . $entry['otp'] .
-			"&modified=" . $entry['modified'] .
-			"&" . $this->otpPartFromInfoString($entry['info']);
-	}
+    public $syncServers = array();
+    public $dbConn = null;
+    public $curlopts = array();
+
+    public function __construct($logname='ykval-synclib')
+    {
+        $this->myLog = new Log($logname);
+        global $baseParams;
+        $this->syncServers = $baseParams['__YKVAL_SYNC_POOL__'];
+        $this->db = Db::GetDatabaseHandle($baseParams, $logname);
+        $this->isConnected=$this->db->connect();
+        $this->server_nonce=md5(uniqid(rand()));
+
+        if (array_key_exists('__YKVAL_SYNC_CURL_OPTS__', $baseParams))
+        {
+            $this->curlopts = $baseParams['__YKVAL_SYNC_CURL_OPTS__'];
+        }
+    }
+
+    public function addField($name, $value)
+    {
+        $this->myLog->addField($name, $value);
+        $this->db->addField($name, $value);
+    }
+
+    public function isConnected()
+    {
+        return $this->isConnected;
+    }
+
+    public function getNumberOfServers()
+    {
+        return count($this->syncServers);
+    }
+
+    public function getNumberOfValidAnswers()
+    {
+        if (isset($this->valid_answers))
+            return $this->valid_answers;
+
+        return 0;
+    }
+
+    public function getNumberOfAnswers()
+    {
+        if (isset($this->answers))
+            return $this->answers;
+
+        return 0;
+    }
+
+    public function getClientData($client)
+    {
+        $res = $this->db->customQuery("SELECT id, secret FROM clients WHERE active='1' AND id='" . $client . "'");
+        $r = $this->db->fetchArray($res);
+        $this->db->closeCursor($res);
+
+        if ($r)
+            return $r;
+
+        return false;
+    }
+
+    public function getQueueLength()
+    {
+        return count($this->db->findBy('queue', null, null, null));
+    }
+
+    public function getQueueLengthByServer()
+    {
+        $counters = array();
+
+        foreach ($this->syncServers as $server)
+        {
+            $counters[$server] = 0;
+        }
+
+        $result = $this->db->customQuery('SELECT server, COUNT(server) as count FROM queue GROUP BY server');
+
+        while ($row = $this->db->fetchArray($result))
+        {
+            $counters[$row['server']] = $row['count'];
+        }
+
+        $this->db->closeCursor($result);
+
+        return $counters;
+    }
+
+    public function queue($otpParams, $localParams)
+    {
+        $info = $this->createInfoString($otpParams, $localParams);
+        $this->otpParams = $otpParams;
+        $this->localParams = $localParams;
+
+        $queued = time();
+        $result = true;
+
+        foreach ($this->syncServers as $server)
+        {
+            $arr = array(
+                'queued' => $queued,
+                'modified' => $otpParams['modified'],
+                'otp' => $otpParams['otp'],
+                'server' => $server,
+                'server_nonce' => $this->server_nonce,
+                'info' => $info
+            );
+
+            if (! $this->db->save('queue', $arr))
+                $result = false;
+        }
+
+        return $result;
+    }
+
+    public function log($priority, $msg, $params=NULL)
+    {
+        if ($params)
+            $msg .= ' modified=' . _get($params, 'modified') .
+                 ' nonce=' . _get($params, 'nonce') .
+                 ' yk_publicname=' . _get($params, 'yk_publicname') .
+                 ' yk_counter=' . _get($params, 'yk_counter') .
+                 ' yk_use=' . _get($params, 'yk_use') .
+                 ' yk_high=' . _get($params, 'yk_high') .
+                 ' yk_low=' . _get($params, 'yk_low');
+
+        if ($this->myLog)
+            $this->myLog->log($priority, $msg);
+        else
+            error_log("Warning: myLog uninitialized in ykval-synclib.php. Message is " . $msg);
+    }
+
+    public function getLocalParams($yk_publicname)
+    {
+        $this->log(LOG_DEBUG, "searching for yk_publicname $yk_publicname in local db");
+
+        $res = $this->db->findBy('yubikeys', 'yk_publicname', $yk_publicname, 1);
+
+        if (!$res)
+        {
+            $this->log(LOG_NOTICE, "Discovered new identity $yk_publicname");
+
+            $this->db->save('yubikeys', array(
+                'active' => 1,
+                'created' => time(),
+                'modified' => -1,
+                'yk_publicname' => $yk_publicname,
+                'yk_counter' => -1,
+                'yk_use' => -1,
+                'yk_low' => -1,
+                'yk_high' => -1,
+                'nonce' => '0000000000000000',
+                'notes' => ''
+            ));
+
+            $res = $this->db->findBy('yubikeys', 'yk_publicname', $yk_publicname, 1);
+        }
+
+        if ($res)
+        {
+            $localParams = array(
+                'modified' => $res['modified'],
+                'nonce' => $res['nonce'],
+                'active' => $res['active'],
+                'yk_publicname' => $yk_publicname,
+                'yk_counter' => $res['yk_counter'],
+                'yk_use' => $res['yk_use'],
+                'yk_high' => $res['yk_high'],
+                'yk_low' => $res['yk_low']
+            );
+
+            $this->log(LOG_INFO, "yubikey found in db ", $localParams);
+            return $localParams;
+        }
+
+        $this->log(LOG_NOTICE, "params for yk_publicname $yk_publicname not found in database");
+        return false;
+    }
+
+    public function updateDbCounters($params)
+    {
+        if (!isset($params['yk_publicname']))
+            return false;
+
+        $arr = array(
+            'modified' => $params['modified'],
+            'yk_counter' => $params['yk_counter'],
+            'yk_use' => $params['yk_use'],
+            'yk_low' => $params['yk_low'],
+            'yk_high' => $params['yk_high'],
+            'nonce' => $params['nonce']
+        );
+
+        $condition = '('.$params['yk_counter'].'>yk_counter or ('.$params['yk_counter'].'=yk_counter and ' . $params['yk_use'] . '>yk_use))';
+
+        if (! $this->db->conditionalUpdateBy('yubikeys', 'yk_publicname', $params['yk_publicname'], $arr, $condition))
+        {
+            $this->log(LOG_CRIT, 'failed to update internal DB with new counters');
+            return false;
+        }
+
+        if ($this->db->rowCount() > 0)
+            $this->log(LOG_INFO, 'updated database ', $params);
+        else
+            $this->log(LOG_INFO, 'database not updated', $params);
+
+        return true;
+    }
+
+    public function countersHigherThan($p1, $p2)
+    {
+        if ($p1['yk_counter'] > $p2['yk_counter'])
+            return true;
+
+        if ($p1['yk_counter'] == $p2['yk_counter'] && $p1['yk_use'] > $p2['yk_use'])
+            return true;
+
+        return false;
+    }
+
+    public function countersHigherThanOrEqual($p1, $p2)
+    {
+        if ($p1['yk_counter'] > $p2['yk_counter'])
+            return true;
+
+        if ($p1['yk_counter'] == $p2['yk_counter'] && $p1['yk_use'] >= $p2['yk_use'])
+            return true;
+
+        return false;
+    }
+
+    public function countersEqual($p1, $p2)
+    {
+        return ($p1['yk_counter'] == $p2['yk_counter'] && $p1['yk_use'] == $p2['yk_use']);
+    }
+
+    // queue daemon
+    public function reSync($older_than, $timeout)
+    {
+        $this->log(LOG_DEBUG, 'starting resync');
+
+        /* Loop over all unique servers in queue */
+        $queued_limit = time()-$older_than;
+        $server_res = $this->db->customQuery("select distinct server from queue WHERE queued < " . $queued_limit . " or queued is null");
+        $server_list = array();
+        $mh = curl_multi_init();
+        $ch = array();
+        $entries = array();
+        $handles = 0;
+        $num_per_server = 4;
+        $curlopts = $this->curlopts;
+
+        while ($my_server = $this->db->fetchArray($server_res))
+        {
+            $server = $my_server['server'];
+            $this->log(LOG_DEBUG, "Processing queue for server " . $server);
+
+            $res = $this->db->customQuery("select * from queue WHERE (queued < " . $queued_limit . " or queued is null) and server='" . $server . "' LIMIT 1000");
+
+            $list = array();
+
+            while ($entry = $this->db->fetchArray($res))
+            {
+                $list[] = $entry;
+            }
+            $server_list[$server] = $list;
+
+            $this->db->closeCursor($res);
+        }
+        $this->db->closeCursor($server_res);
+
+        /* add up to n entries for each server we're going to sync */
+        foreach ($server_list as $server) {
+            $items = array_slice($server, 0, $num_per_server);
+            $counter = 0;
+            foreach ($items as $entry) {
+                $label = "{$entry['server']}:$counter";
+                $handle = curl_init();
+                $ch[$label] = $handle;
+                $counter++;
+                $this->log(LOG_INFO, "server=" . $entry['server'] . ", server_nonce=" . $entry['server_nonce'] . ", info=" . $entry['info']);
+
+                $url = $this->buildSyncUrl($entry);
+
+                $curlopts[CURLOPT_PRIVATE] = $label;
+
+                curl_settings($this, 'YK-VAL resync', $handle, $url, $timeout, $curlopts);
+                $entries[$label] = $entry;
+                curl_multi_add_handle($mh, $handle);
+                $handles++;
+            }
+            $empty = array();
+            array_splice($server, 0, $num_per_server, $empty);
+            if(count($server) == 0) {
+                unset($server_list[$entry['server']]);
+            }
+        }
+
+        while($handles > 0) {
+            while (curl_multi_exec($mh, $active) == CURLM_CALL_MULTI_PERFORM);
+
+            while ($info = curl_multi_info_read($mh)) {
+                $handle = $info['handle'];
+                $server = strtok(curl_getinfo($handle, CURLINFO_EFFECTIVE_URL), "?");
+                $label = curl_getinfo($handle, CURLINFO_PRIVATE);
+                $entry = $entries[$label];
+                $this->log(LOG_DEBUG, "handle indicated to be for $server.");
+                curl_multi_remove_handle($mh, $handle);
+                $handles--;
+                if ($info['result'] === CURLE_OK) {
+                    $response = curl_multi_getcontent($handle);
+                    if (preg_match('/status=OK/', $response))
+                    {
+                        $resParams = $this->parseParamsFromMultiLineString($response);
+                        $this->log(LOG_DEBUG, 'response contains ', $resParams);
+
+                        /* Update database counters */
+                        $this->updateDbCounters($resParams);
+
+                        /* Retrieve info from entry info string */
+
+                        /* This is the counter values we had in our database *before* processing the current OTP. */
+                        $validationParams = $this->localParamsFromInfoString($entry['info']);
+
+                        /* This is the data from the current OTP. */
+                        $otpParams = $this->otpParamsFromInfoString($entry['info']);
+
+                        /* Fetch current information from our database */
+                        $localParams = $this->getLocalParams($otpParams['yk_publicname']);
+
+                        $this->log(LOG_DEBUG, 'validation params: ', $validationParams);
+                        $this->log(LOG_DEBUG, 'OTP params: ', $otpParams);
+
+                        /* Check for warnings  */
+
+                        if ($this->countersHigherThan($validationParams, $resParams))
+                        {
+                            $this->log(LOG_NOTICE, 'Remote server out of sync compared to counters at validation request time. ');
+                        }
+
+                        if ($this->countersHigherThan($resParams, $validationParams))
+                        {
+                            if ($this->countersEqual($resParams, $otpParams))
+                            {
+                                $this->log(LOG_INFO, 'Remote server had received the current counter values already. ');
+                            }
+                            else
+                            {
+                                $this->log(LOG_NOTICE, 'Local server out of sync compared to counters at validation request time. ');
+                            }
+                        }
+
+                        if ($this->countersHigherThan($localParams, $resParams))
+                        {
+                            $this->log(LOG_WARNING, 'Remote server out of sync compared to current local counters.  ');
+                        }
+
+                        if ($this->countersHigherThan($resParams, $localParams))
+                        {
+                            $this->log(LOG_WARNING, 'Local server out of sync compared to current local counters. Local server updated. ');
+                        }
+
+                        if ($this->countersHigherThan($resParams, $otpParams))
+                        {
+                            $this->log(LOG_ERR, 'Remote server has higher counters than OTP. This response would have marked the OTP as invalid. ');
+                        }
+                        elseif ($this->countersEqual($resParams, $otpParams) && $resParams['nonce'] != $otpParams['nonce'])
+                        {
+                            $this->log(LOG_ERR, 'Remote server has equal counters as OTP and nonce differs. This response would have marked the OTP as invalid.');
+                        }
+
+                        /* Deletion */
+                        $this->log(LOG_DEBUG, 'deleting queue entry with modified=' . $entry['modified'] .
+                                   ' server_nonce=' . $entry['server_nonce'] .
+                                   ' server=' . $entry['server']);
+
+                        $this->db->deleteByMultiple('queue', array(
+                            'modified' => $entry['modified'],
+                            'server_nonce' => $entry['server_nonce'],
+                            'server' => $entry['server']
+                        ));
+
+                    }
+                    else if (preg_match('/status=BAD_OTP/', $response))
+                    {
+                        $this->log(LOG_WARNING, 'Remote server says BAD_OTP, pointless to try again, removing from queue.');
+                        $this->db->deleteByMultiple('queue', array(
+                            'modified' => $entry['modified'],
+                            'server_nonce' => $entry['server_nonce'],
+                            'server' => $entry['server']
+                        ));
+                    }
+                    else
+                    {
+                        $this->log(LOG_ERR, 'Remote server refused our sync request. Check remote server logs.');
+                    }
+
+                    if (array_key_exists($server, $server_list)) {
+                        $entry = array_shift($server_list[$server]);
+                        if(count($server_list[$server]) == 0) {
+                            $this->log(LOG_DEBUG, "All entries for $server synced.");
+                            unset($server_list[$server]);
+                        }
+                        $this->log(LOG_INFO, "server=" . $entry['server'] . ", server_nonce=" . $entry['server_nonce'] . ", info=" . $entry['info']);
+
+                        $url = $this->buildSyncUrl($entry);
+
+                        $curlopts[CURLOPT_PRIVATE] = $label;
+                        curl_settings($this, 'YK-VAL resync', $handle, $url, $timeout, $curlopts);
+                        $entries[$label] = $entry;
+                        curl_multi_add_handle($mh, $handle);
+                        $handles++;
+                    }
+                } else {
+                    $this->log(LOG_NOTICE, 'Timeout. Stopping queue resync for server ' . $entry['server']);
+                    unset($server_list[$server]);
+                }
+            }
+        }
+
+        foreach ($ch as $handle) {
+            curl_close($handle);
+        }
+
+        curl_multi_close($mh);
+
+        return true;
+    }
+
+    // blocks verify requests
+    public function sync($ans_req, $timeout=1)
+    {
+        // construct URLs
+        $urls = array();
+        $res = $this->db->findByMultiple('queue', array(
+            'modified'     => $this->otpParams['modified'],
+            'server_nonce' => $this->server_nonce
+        ));
+        foreach ($res as $row)
+        {
+            $urls[] = $this->buildSyncUrl($row);
+        }
+
+        // send out requests
+        $ans_arr = retrieveURLasync('YK-VAL sync', $urls, $this->myLog, $ans_req, $match='status=OK', $returl=True, $timeout, $this->curlopts);
+
+        if ($ans_arr === FALSE)
+        {
+            $this->log(LOG_WARNING, 'No responses from validation server pool');
+            $ans_arr = array();
+        }
+
+        // parse responses
+        $localParams = $this->localParams;
+
+        $this->answers = count($ans_arr);
+        $this->valid_answers = 0;
+
+        foreach ($ans_arr as $answer)
+        {
+            // parse out parameters from each response
+            $resParams=$this->parseParamsFromMultiLineString($answer);
+            $this->log(LOG_DEBUG, 'local db contains ', $localParams);
+            $this->log(LOG_DEBUG, 'response contains ', $resParams);
+            $this->log(LOG_DEBUG, 'OTP contains ', $this->otpParams);
+
+            // update internal DB (conditional)
+            $this->updateDbCounters($resParams);
+
+            /**
+             * Check for warnings
+             *
+             * See https://developers.yubico.com/yubikey-val/doc/ServerReplicationProtocol.html
+             *
+             * NOTE: We use localParams for validationParams comparison since they are actually the
+             *	same in this situation and we have them at hand.
+             */
+
+            if ($this->countersHigherThan($localParams, $resParams))
+            {
+                $this->log(LOG_NOTICE, 'Remote server out of sync');
+            }
+
+            if ($this->countersHigherThan($resParams, $localParams))
+            {
+                $this->log(LOG_NOTICE, 'Local server out of sync');
+            }
+
+            if ($this->countersEqual($resParams, $localParams) && $resParams['nonce'] != $localParams['nonce'])
+            {
+                $this->log(LOG_NOTICE, 'Servers out of sync. Nonce differs. ');
+            }
+
+            if ($this->countersEqual($resParams, $localParams) && $resParams['modified'] != $localParams['modified'])
+            {
+                $this->log(LOG_NOTICE, 'Servers out of sync. Modified differs. ');
+            }
+
+            if ($this->countersHigherThan($resParams, $this->otpParams))
+            {
+                $this->log(LOG_WARNING, 'OTP is replayed. Sync response counters higher than OTP counters.');
+            }
+            elseif ($this->countersEqual($resParams, $this->otpParams) && $resParams['nonce'] != $this->otpParams['nonce'])
+            {
+                $this->log(LOG_WARNING, 'OTP is replayed. Sync response counters equal to OTP counters and nonce differs.');
+            }
+            else
+            {
+                // the answer is ok since a REPLAY was not indicated
+                $this->valid_answers++;
+            }
+
+            // delete entry from table
+            $this->deleteQueueEntry($answer);
+        }
+
+        /**
+         * NULL queued_time for remaining entries in queue, to allow
+         *	daemon to take care of them as soon as possible.
+         */
+        $this->db->updateBy('queue', 'server_nonce', $this->server_nonce, array('queued'=>NULL));
+
+        /**
+         * Return true if valid answers equals required answers.
+         *	Since we only obtain the required amount of answers from
+         *	retrieveAsync this indicates that all answers were actually valid.
+         *	Otherwise, return false.
+         */
+        if ($this->valid_answers == $ans_req)
+            return true;
+
+        return false;
+    }
+
+    private function createInfoString($otpParams, $localParams)
+    {
+        # FIXME &local_counter
+        return 'yk_publicname=' . $otpParams['yk_publicname'] .
+                                '&yk_counter=' . $otpParams['yk_counter'] .
+                                '&yk_use=' . $otpParams['yk_use'] .
+                                '&yk_high=' . $otpParams['yk_high'] .
+                                '&yk_low=' . $otpParams['yk_low'] .
+                                '&nonce=' . $otpParams['nonce'] .
+                                ',local_counter=' . $localParams['yk_counter'] .
+                                '&local_use=' . $localParams['yk_use'];
+    }
+
+    private function otpParamsFromInfoString($info)
+    {
+        $out = explode(',', $info);
+        parse_str($out[0], $params);
+        return $params;
+    }
+
+    private function otpPartFromInfoString($info)
+    {
+        $out = explode(',', $info);
+        return $out[0];
+    }
+
+    private function localParamsFromInfoString($info)
+    {
+        $out = explode(',', $info);
+        parse_str($out[1], $params);
+
+        return array(
+            'yk_counter' => $params['local_counter'],
+            'yk_use' => $params['local_use']
+        );
+    }
+
+    private function parseParamsFromMultiLineString($str)
+    {
+        $i = preg_match("/^modified=(-1|[0-9]+)/m", $str, $out);
+        if ($i != 1) {
+            $this->log(LOG_ALERT, "cannot parse modified value: $str");
+        }
+        $resParams['modified']=$out[1];
+
+        $i = preg_match("/^yk_publicname=([cbdefghijklnrtuv]+)/m", $str, $out);
+        if ($i != 1) {
+            $this->log(LOG_ALERT, "cannot parse publicname value: $str");
+        }
+        $resParams['yk_publicname']=$out[1];
+
+        $i = preg_match("/^yk_counter=(-1|[0-9]+)/m", $str, $out);
+        if ($i != 1) {
+            $this->log(LOG_ALERT, "cannot parse counter value: $str");
+        }
+        $resParams['yk_counter']=$out[1];
+
+        $i = preg_match("/^yk_use=(-1|[0-9]+)/m", $str, $out);
+        if ($i != 1) {
+            $this->log(LOG_ALERT, "cannot parse use value: $str");
+        }
+        $resParams['yk_use']=$out[1];
+
+        $i = preg_match("/^yk_high=(-1|[0-9]+)/m", $str, $out);
+        if ($i != 1) {
+            $this->log(LOG_ALERT, "cannot parse high value: $str");
+        }
+        $resParams['yk_high']=$out[1];
+
+        $i = preg_match("/^yk_low=(-1|[0-9]+)/m", $str, $out);
+        if ($i != 1) {
+            $this->log(LOG_ALERT, "cannot parse low value: $str");
+        }
+        $resParams['yk_low']=$out[1];
+
+        $i = preg_match("/^nonce=([[:alnum:]]+)/m", $str, $out);
+        if ($i != 1) {
+            $this->log(LOG_ALERT, "cannot parse nonce value: $str");
+        }
+        $resParams['nonce']=$out[1];
+
+        return $resParams;
+    }
+
+    private function deleteQueueEntry($answer)
+    {
+        preg_match('/url=(.*)\?/', $answer, $out);
+        $server = $out[1];
+
+        $this->log(LOG_INFO, "deleting server=" . $server .
+                   " modified=" . $this->otpParams['modified'] .
+                   " server_nonce=" . $this->server_nonce);
+
+        $this->db->deleteByMultiple('queue', array(
+            'modified' => $this->otpParams['modified'],
+            'server_nonce' => $this->server_nonce,
+            'server' => $server
+        ));
+    }
+
+    private function buildSyncUrl($entry)
+    {
+        return $entry['server'] .
+                                "?otp=" . $entry['otp'] .
+                                "&modified=" . $entry['modified'] .
+                                "&" . $this->otpPartFromInfoString($entry['info']);
+    }
 }
diff --git a/ykval-verify.php b/ykval-verify.php
index b66cd4f..d1db9ed 100644
--- a/ykval-verify.php
+++ b/ykval-verify.php
@@ -39,7 +39,7 @@ header('content-type: text/plain');
 $ipaddr = $_SERVER['REMOTE_ADDR'];
 
 $https = (array_key_exists('HTTPS', $_SERVER) === TRUE
-			&& strtolower($_SERVER['HTTPS']) !== 'off' ? TRUE : FALSE);
+          && strtolower($_SERVER['HTTPS']) !== 'off' ? TRUE : FALSE);
 
 $myLog = new Log('ykval-verify');
 $myLog->addField('ip', $ipaddr);
@@ -47,9 +47,9 @@ $myLog->addField('ip', $ipaddr);
 $myLog->request = new LogVerify();
 
 if (array_key_exists('__YKVAL_VERIFY_LOGFORMAT__', $baseParams)
-	&& is_string($baseParams['__YKVAL_VERIFY_LOGFORMAT__']))
+    && is_string($baseParams['__YKVAL_VERIFY_LOGFORMAT__']))
 {
-	$myLog->request->format = $baseParams['__YKVAL_VERIFY_LOGFORMAT__'];
+    $myLog->request->format = $baseParams['__YKVAL_VERIFY_LOGFORMAT__'];
 }
 
 $myLog->request->set('ip', $ipaddr);
@@ -60,24 +60,24 @@ unset($time_start);
 
 if ($_GET)
 {
-	$request = $_GET;
-	$message = 'Request: ' . $_SERVER['QUERY_STRING'];
+    $request = $_GET;
+    $message = 'Request: ' . $_SERVER['QUERY_STRING'];
 }
 else if ($_POST)
 {
-	$request = $_POST;
-	$kv = array();
-	foreach ($request as $key => $value)
-	{
-		$kv[] = "$key=$value";
-	}
-	$message = 'POST: ' . join('&', $kv);
-	unset($kv);
+    $request = $_POST;
+    $kv = array();
+    foreach ($request as $key => $value)
+    {
+        $kv[] = "$key=$value";
+    }
+    $message = 'POST: ' . join('&', $kv);
+    unset($kv);
 }
 else
 {
-	$request = array();
-	$message = '';
+    $request = array();
+    $message = '';
 }
 $message .= ' (at ' . date('c') . ' ' . microtime() . ') HTTP' . ($https ? 'S' : '');
 $myLog->log(LOG_INFO, $message);
@@ -87,11 +87,11 @@ unset($message);
 /* Detect protocol version */
 if (preg_match('/\/wsapi\/([0-9]+)\.([0-9]+)\//', $_SERVER['REQUEST_URI'], $out))
 {
-	$protocol_version = $out[1] + $out[2] * 0.1;
+    $protocol_version = $out[1] + $out[2] * 0.1;
 }
 else
 {
-	$protocol_version = 1.0;
+    $protocol_version = 1.0;
 }
 
 $myLog->request->set('protocol', $protocol_version);
@@ -108,10 +108,10 @@ $otp = getHttpVal('otp', '', $request);
 $otp = strtolower($otp);
 if (preg_match('/^[jxe.uidchtnbpygk]+$/', $otp))
 {
-	$new_otp = strtr($otp, 'jxe.uidchtnbpygk', 'cbdefghijklnrtuv');
-	$myLog->log(LOG_INFO, "Dvorak OTP converting $otp to $new_otp");
-	$otp = $new_otp;
-	unset($new_otp);
+    $new_otp = strtr($otp, 'jxe.uidchtnbpygk', 'cbdefghijklnrtuv');
+    $myLog->log(LOG_INFO, "Dvorak OTP converting $otp to $new_otp");
+    $otp = $new_otp;
+    unset($new_otp);
 }
 
 $myLog->request->set('signed', ($h === '' ? '-' : 'signed'));
@@ -126,7 +126,7 @@ $extra = array();
 
 if ($protocol_version >= 2.0)
 {
-	$extra['otp'] = $otp;
+    $extra['otp'] = $otp;
 }
 
 /**
@@ -137,23 +137,23 @@ $myLog->addField('otp', $otp);
 
 if ($protocol_version >= 2.0)
 {
-	$sl = getHttpVal('sl', '', $request);
-	$timeout = getHttpVal('timeout', '', $request);
-	$nonce = getHttpVal('nonce', '', $request);
+    $sl = getHttpVal('sl', '', $request);
+    $timeout = getHttpVal('timeout', '', $request);
+    $nonce = getHttpVal('nonce', '', $request);
 
-	$myLog->request->set('sl', $sl);
-	$myLog->request->set('timeout', $timeout);
-	$myLog->request->set('nonce', $nonce);
+    $myLog->request->set('sl', $sl);
+    $myLog->request->set('timeout', $timeout);
+    $myLog->request->set('nonce', $nonce);
 
-	/* Nonce is required from protocol 2.0 */
-	if (!$nonce)
-	{
-		$myLog->log(LOG_NOTICE, 'Nonce is missing and protocol version >= 2.0');
-		sendResp(S_MISSING_PARAMETER, $myLog);
-	}
+    /* Nonce is required from protocol 2.0 */
+    if (!$nonce)
+    {
+        $myLog->log(LOG_NOTICE, 'Nonce is missing and protocol version >= 2.0');
+        sendResp(S_MISSING_PARAMETER, $myLog);
+    }
 
-	/* Add nonce to response parameters */
-	$extra['nonce'] = $nonce;
+    /* Add nonce to response parameters */
+    $extra['nonce'] = $nonce;
 }
 
 
@@ -176,10 +176,10 @@ if (isset($sl) && $sl != '') {
     } else if (strcasecmp($sl, 'secure') == 0) {
         $sl = $baseParams['__YKVAL_SYNC_SECURE_LEVEL__'];
     } else {
-		$sl = intval($sl); // non-numbers return zero
-		if ($sl < 1) {
-			$myLog->log(LOG_NOTICE, 'SL is provided but not correct');
-			sendResp(S_MISSING_PARAMETER, $myLog);
+        $sl = intval($sl); // non-numbers return zero
+        if ($sl < 1) {
+            $myLog->log(LOG_NOTICE, 'SL is provided but not correct');
+            sendResp(S_MISSING_PARAMETER, $myLog);
         }
     }
 } else {
@@ -187,28 +187,28 @@ if (isset($sl) && $sl != '') {
 }
 
 if (!isset($timeout) || $timeout == '') {
-	$timeout = $baseParams['__YKVAL_SYNC_DEFAULT_TIMEOUT__'];
+    $timeout = $baseParams['__YKVAL_SYNC_DEFAULT_TIMEOUT__'];
 } else if (!ctype_digit($timeout)) {
-	$myLog->log(LOG_NOTICE, 'timeout is provided but not correct');
-	sendResp(S_MISSING_PARAMETER, $myLog);
+    $myLog->log(LOG_NOTICE, 'timeout is provided but not correct');
+    sendResp(S_MISSING_PARAMETER, $myLog);
 }
 
 if (!is_otp($otp))
 {
-	$myLog->log(LOG_NOTICE, "Invalid OTP: $otp");
-	sendResp(S_BAD_OTP, $myLog);
+    $myLog->log(LOG_NOTICE, "Invalid OTP: $otp");
+    sendResp(S_BAD_OTP, $myLog);
 }
 
 if (!is_clientid($client))
 {
-	$myLog->log(LOG_NOTICE, 'Client ID is missing or invalid');
-	sendResp(S_MISSING_PARAMETER, $myLog);
+    $myLog->log(LOG_NOTICE, 'Client ID is missing or invalid');
+    sendResp(S_MISSING_PARAMETER, $myLog);
 }
 
 if (isset($nonce) && !is_nonce($nonce))
 {
-	$myLog->log(LOG_NOTICE, 'NONCE is provided but not correct');
-	sendResp(S_MISSING_PARAMETER, $myLog);
+    $myLog->log(LOG_NOTICE, 'NONCE is provided but not correct');
+    sendResp(S_MISSING_PARAMETER, $myLog);
 }
 
 /**
@@ -227,13 +227,13 @@ $sync->addField('otp', $otp);
 
 if (! $sync->isConnected())
 {
-	sendResp(S_BACKEND_ERROR, $myLog);
+    sendResp(S_BACKEND_ERROR, $myLog);
 }
 
 if (($cd = $sync->getClientData($client)) === FALSE)
 {
-	$myLog->log(LOG_NOTICE, "Invalid client id $client");
-	sendResp(S_NO_SUCH_CLIENT, $myLog);
+    $myLog->log(LOG_NOTICE, "Invalid client id $client");
+    sendResp(S_NO_SUCH_CLIENT, $myLog);
 }
 $myLog->log(LOG_DEBUG, 'Client data:', $cd);
 
@@ -247,16 +247,16 @@ unset($cd);
 
 if ($h != '')
 {
-	// Create the signature using the API key
-	unset($request['h']);
+    // Create the signature using the API key
+    unset($request['h']);
 
-	$hmac = sign($request, $apiKey, $myLog);
+    $hmac = sign($request, $apiKey, $myLog);
 
-	if (hash_equals($hmac, $h) === FALSE)
-	{
-		$myLog->log(LOG_DEBUG, "client hmac=$h, server hmac=$hmac");
-		sendResp(S_BAD_SIGNATURE, $myLog, $apiKey);
-	}
+    if (hash_equals($hmac, $h) === FALSE)
+    {
+        $myLog->log(LOG_DEBUG, "client hmac=$h, server hmac=$hmac");
+        sendResp(S_BAD_SIGNATURE, $myLog, $apiKey);
+    }
 }
 
 /**
@@ -265,33 +265,33 @@ if ($h != '')
  */
 if ($protocol_version < 2.0)
 {
-	// we need to create a nonce manually here
-	$nonce = md5(uniqid(rand()));
-	$myLog->log(LOG_INFO, "protocol version below 2.0. Created nonce $nonce");
+    // we need to create a nonce manually here
+    $nonce = md5(uniqid(rand()));
+    $myLog->log(LOG_INFO, "protocol version below 2.0. Created nonce $nonce");
 }
 
 // which YK-KSM should we talk to?
 $urls = otp2ksmurls($otp, $client);
 if (!is_array($urls))
 {
-	sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
+    sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
 }
 
 // decode OTP from input
 $curlopts = array();
 if (array_key_exists('__YKVAL_KSM_CURL_OPTS__', $baseParams))
 {
-	$curlopts = $baseParams['__YKVAL_KSM_CURL_OPTS__'];
+    $curlopts = $baseParams['__YKVAL_KSM_CURL_OPTS__'];
 }
 if (($otpinfo = KSMdecryptOTP($urls, $myLog, $curlopts)) === FALSE)
 {
-	/**
-	 * FIXME
-	 *
-	 * Return S_BACKEND_ERROR if there are connection issues,
-	 *	e.g. misconfigured otp2ksmurls.
-	 */
-	sendResp(S_BAD_OTP, $myLog, $apiKey);
+    /**
+     * FIXME
+     *
+     * Return S_BACKEND_ERROR if there are connection issues,
+     *	e.g. misconfigured otp2ksmurls.
+     */
+    sendResp(S_BAD_OTP, $myLog, $apiKey);
 }
 $myLog->request->set('counter', $otpinfo['session_counter']);
 $myLog->request->set('use', $otpinfo['session_use']);
@@ -304,28 +304,28 @@ $public_id = substr($otp, 0, strlen ($otp) - TOKEN_LEN);
 $myLog->request->set('public_id', $public_id);
 if (($localParams = $sync->getLocalParams($public_id)) === FALSE)
 {
-	$myLog->log(LOG_NOTICE, "Invalid Yubikey $public_id");
-	sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
+    $myLog->log(LOG_NOTICE, "Invalid Yubikey $public_id");
+    sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
 }
 
 $myLog->log(LOG_DEBUG, 'Auth data:', $localParams);
 if ($localParams['active'] != 1)
 {
-	$myLog->log(LOG_NOTICE, "De-activated Yubikey $public_id");
-	sendResp(S_BAD_OTP, $myLog, $apiKey);
+    $myLog->log(LOG_NOTICE, "De-activated Yubikey $public_id");
+    sendResp(S_BAD_OTP, $myLog, $apiKey);
 }
 
 /* Build OTP params */
 
 $otpParams = array(
-	'modified' => time(),
-	'otp' => $otp,
-	'nonce' => $nonce,
-	'yk_publicname' => $public_id,
-	'yk_counter' => $otpinfo['session_counter'],
-	'yk_use' => $otpinfo['session_use'],
-	'yk_high' => $otpinfo['high'],
-	'yk_low' => $otpinfo['low']
+    'modified' => time(),
+    'otp' => $otp,
+    'nonce' => $nonce,
+    'yk_publicname' => $public_id,
+    'yk_counter' => $otpinfo['session_counter'],
+    'yk_use' => $otpinfo['session_use'],
+    'yk_high' => $otpinfo['high'],
+    'yk_low' => $otpinfo['low']
 );
 unset($otpinfo);
 
@@ -333,117 +333,117 @@ unset($otpinfo);
 /* First check if OTP is seen with the same nonce, in such case we have an replayed request */
 if ($sync->countersEqual($localParams, $otpParams) && $localParams['nonce'] == $otpParams['nonce'])
 {
-	$myLog->log(LOG_WARNING, 'Replayed request');
-	sendResp(S_REPLAYED_REQUEST, $myLog, $apiKey, $extra);
+    $myLog->log(LOG_WARNING, 'Replayed request');
+    sendResp(S_REPLAYED_REQUEST, $myLog, $apiKey, $extra);
 }
 
 /* Check the OTP counters against local db */
 if ($sync->countersHigherThanOrEqual($localParams, $otpParams))
 {
-	$sync->log(LOG_WARNING, 'replayed OTP: Local counters higher');
-	$sync->log(LOG_WARNING, 'replayed OTP: Local counters ', $localParams);
-	$sync->log(LOG_WARNING, 'replayed OTP: Otp counters ', $otpParams);
-	sendResp(S_REPLAYED_OTP, $myLog, $apiKey, $extra);
+    $sync->log(LOG_WARNING, 'replayed OTP: Local counters higher');
+    $sync->log(LOG_WARNING, 'replayed OTP: Local counters ', $localParams);
+    $sync->log(LOG_WARNING, 'replayed OTP: Otp counters ', $otpParams);
+    sendResp(S_REPLAYED_OTP, $myLog, $apiKey, $extra);
 }
 
 /* Valid OTP, update database. */
 
 if (!$sync->updateDbCounters($otpParams))
 {
-	$myLog->log(LOG_CRIT, 'Failed to update yubikey counters in database');
-	sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
+    $myLog->log(LOG_CRIT, 'Failed to update yubikey counters in database');
+    sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
 }
 
 /* Queue sync requests */
 
 if (!$sync->queue($otpParams, $localParams))
 {
-	$myLog->log(LOG_CRIT, 'failed to queue sync requests');
-	sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
+    $myLog->log(LOG_CRIT, 'failed to queue sync requests');
+    sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
 }
 
 $nr_servers = $sync->getNumberOfServers();
 $req_answers = ceil($nr_servers * $sl / 100.0);
 if ($req_answers > 0)
 {
-	$syncres = $sync->sync($req_answers, $timeout);
-	$nr_answers = $sync->getNumberOfAnswers();
-	$nr_valid_answers = $sync->getNumberOfValidAnswers();
-	$sl_success_rate = floor(100.0 * $nr_valid_answers / $nr_servers);
+    $syncres = $sync->sync($req_answers, $timeout);
+    $nr_answers = $sync->getNumberOfAnswers();
+    $nr_valid_answers = $sync->getNumberOfValidAnswers();
+    $sl_success_rate = floor(100.0 * $nr_valid_answers / $nr_servers);
 }
 else
 {
-	$syncres = true;
-	$nr_answers = 0;
-	$nr_valid_answers = 0;
-	$sl_success_rate = 0;
+    $syncres = true;
+    $nr_answers = 0;
+    $nr_valid_answers = 0;
+    $sl_success_rate = 0;
 }
 
 $myLog->log(LOG_INFO, '', array(
-	'synclevel' => $sl,
-	'nr servers' => $nr_servers,
-	'req answers' => $req_answers,
-	'answers' => $nr_answers,
-	'valid answers' => $nr_valid_answers,
-	'sl success rate' => $sl_success_rate,
-	'timeout' => $timeout,
+    'synclevel' => $sl,
+    'nr servers' => $nr_servers,
+    'req answers' => $req_answers,
+    'answers' => $nr_answers,
+    'valid answers' => $nr_valid_answers,
+    'sl success rate' => $sl_success_rate,
+    'timeout' => $timeout,
 ));
 
 if ($syncres == False)
 {
-	/* sync returned false, indicating that
-		either at least 1 answer marked OTP as invalid or
-		there were not enough answers */
-	$myLog->log(LOG_WARNING, 'Sync failed');
+    /* sync returned false, indicating that
+       either at least 1 answer marked OTP as invalid or
+       there were not enough answers */
+    $myLog->log(LOG_WARNING, 'Sync failed');
 
-	if ($nr_valid_answers != $nr_answers)
-		sendResp(S_REPLAYED_OTP, $myLog, $apiKey, $extra);
+    if ($nr_valid_answers != $nr_answers)
+        sendResp(S_REPLAYED_OTP, $myLog, $apiKey, $extra);
 
-	$extra['sl'] = $sl_success_rate;
-	sendResp(S_NOT_ENOUGH_ANSWERS, $myLog, $apiKey, $extra);
+    $extra['sl'] = $sl_success_rate;
+    sendResp(S_NOT_ENOUGH_ANSWERS, $myLog, $apiKey, $extra);
 }
 
 if ($otpParams['yk_counter'] == $localParams['yk_counter'] && $otpParams['yk_use'] > $localParams['yk_use'])
 {
-	$ts = ($otpParams['yk_high'] << 16) + $otpParams['yk_low'];
-	$seenTs = ($localParams['yk_high'] << 16) + $localParams['yk_low'];
-	$tsDiff = $ts - $seenTs;
-	$tsDelta = $tsDiff * TS_SEC;
+    $ts = ($otpParams['yk_high'] << 16) + $otpParams['yk_low'];
+    $seenTs = ($localParams['yk_high'] << 16) + $localParams['yk_low'];
+    $tsDiff = $ts - $seenTs;
+    $tsDelta = $tsDiff * TS_SEC;
 
-	$now = time();
-	$elapsed = $now - $localParams['modified'];
-	$deviation = abs($elapsed - $tsDelta);
+    $now = time();
+    $elapsed = $now - $localParams['modified'];
+    $deviation = abs($elapsed - $tsDelta);
 
-	// Time delta server might verify multiple OTPS in a row. In such case validation server doesn't
-	// have time to tick a whole second and we need to avoid division by zero.
-	if ($elapsed != 0)
-	{
-		$percent = $deviation/$elapsed;
-	}
-	else
-	{
-		$percent = 1;
-	}
+    // Time delta server might verify multiple OTPS in a row. In such case validation server doesn't
+    // have time to tick a whole second and we need to avoid division by zero.
+    if ($elapsed != 0)
+    {
+        $percent = $deviation/$elapsed;
+    }
+    else
+    {
+        $percent = 1;
+    }
 
-	$myLog->log(LOG_INFO, 'Timestamp', array(
-		'seen' => $seenTs,
-		'this' => $ts,
-		'delta' => $tsDiff,
-		'secs' => $tsDelta,
-		'accessed' => sprintf('%s (%s)', $localParams['modified'], date('Y-m-d H:i:s', $localParams['modified'])),
-		'now' => sprintf('%s (%s)', $now, date('Y-m-d H:i:s', $now)),
-		'elapsed' => $elapsed,
-		'deviation' => sprintf('%s secs or %s%%', $deviation, round(100 * $percent)),
-	));
+    $myLog->log(LOG_INFO, 'Timestamp', array(
+        'seen' => $seenTs,
+        'this' => $ts,
+        'delta' => $tsDiff,
+        'secs' => $tsDelta,
+        'accessed' => sprintf('%s (%s)', $localParams['modified'], date('Y-m-d H:i:s', $localParams['modified'])),
+        'now' => sprintf('%s (%s)', $now, date('Y-m-d H:i:s', $now)),
+        'elapsed' => $elapsed,
+        'deviation' => sprintf('%s secs or %s%%', $deviation, round(100 * $percent)),
+    ));
 
-	if ($deviation > TS_ABS_TOLERANCE && $percent > TS_REL_TOLERANCE)
-	{
-		$myLog->log(LOG_NOTICE, 'OTP failed phishing test');
+    if ($deviation > TS_ABS_TOLERANCE && $percent > TS_REL_TOLERANCE)
+    {
+        $myLog->log(LOG_NOTICE, 'OTP failed phishing test');
 
-		// FIXME
-		// This was wrapped around if (0). should we nuke or enable?
-		// sendResp(S_DELAYED_OTP, $myLog, $apiKey, $extra);
-	}
+        // FIXME
+        // This was wrapped around if (0). should we nuke or enable?
+        // sendResp(S_DELAYED_OTP, $myLog, $apiKey, $extra);
+    }
 }
 
 /**
@@ -452,14 +452,14 @@ if ($otpParams['yk_counter'] == $localParams['yk_counter'] && $otpParams['yk_use
 
 if ($protocol_version >= 2.0)
 {
-	$extra['sl'] = $sl_success_rate;
+    $extra['sl'] = $sl_success_rate;
 }
 
 if ($timestamp == 1)
 {
-	$extra['timestamp'] = ($otpParams['yk_high'] << 16) + $otpParams['yk_low'];
-	$extra['sessioncounter'] = $otpParams['yk_counter'];
-	$extra['sessionuse'] = $otpParams['yk_use'];
+    $extra['timestamp'] = ($otpParams['yk_high'] << 16) + $otpParams['yk_low'];
+    $extra['sessioncounter'] = $otpParams['yk_counter'];
+    $extra['sessionuse'] = $otpParams['yk_use'];
 }
 
 sendResp(S_OK, $myLog, $apiKey, $extra);