Imported Upstream version 0.6.24+dfsg1

This commit is contained in:
Mario Fetka
2017-05-20 15:26:21 +02:00
commit 32a360eca6
705 changed files with 87250 additions and 0 deletions

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Array helper class.
*
* $Id: arr.php 4346 2009-05-11 17:08:15Z zombor $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class arr_Core {
/**
* Return a callback array from a string, eg: limit[10,20] would become
* array('limit', array('10', '20'))
*
* @param string callback string
* @return array
*/
public static function callback_string($str)
{
// command[param,param]
if (preg_match('/([^\[]*+)\[(.+)\]/', (string) $str, $match))
{
// command
$command = $match[1];
// param,param
$params = preg_split('/(?<!\\\\),/', $match[2]);
$params = str_replace('\,', ',', $params);
}
else
{
// command
$command = $str;
// No params
$params = NULL;
}
return array($command, $params);
}
/**
* Rotates a 2D array clockwise.
* Example, turns a 2x3 array into a 3x2 array.
*
* @param array array to rotate
* @param boolean keep the keys in the final rotated array. the sub arrays of the source array need to have the same key values.
* if your subkeys might not match, you need to pass FALSE here!
* @return array
*/
public static function rotate($source_array, $keep_keys = TRUE)
{
$new_array = array();
foreach ($source_array as $key => $value)
{
$value = ($keep_keys === TRUE) ? $value : array_values($value);
foreach ($value as $k => $v)
{
$new_array[$k][$key] = $v;
}
}
return $new_array;
}
/**
* Removes a key from an array and returns the value.
*
* @param string key to return
* @param array array to work on
* @return mixed value of the requested array key
*/
public static function remove($key, & $array)
{
if ( ! array_key_exists($key, $array))
return NULL;
$val = $array[$key];
unset($array[$key]);
return $val;
}
/**
* Extract one or more keys from an array. Each key given after the first
* argument (the array) will be extracted. Keys that do not exist in the
* search array will be NULL in the extracted data.
*
* @param array array to search
* @param string key name
* @return array
*/
public static function extract(array $search, $keys)
{
// Get the keys, removing the $search array
$keys = array_slice(func_get_args(), 1);
$found = array();
foreach ($keys as $key)
{
if (isset($search[$key]))
{
$found[$key] = $search[$key];
}
else
{
$found[$key] = NULL;
}
}
return $found;
}
/**
* Because PHP does not have this function.
*
* @param array array to unshift
* @param string key to unshift
* @param mixed value to unshift
* @return array
*/
public static function unshift_assoc( array & $array, $key, $val)
{
$array = array_reverse($array, TRUE);
$array[$key] = $val;
$array = array_reverse($array, TRUE);
return $array;
}
/**
* Because PHP does not have this function, and array_walk_recursive creates
* references in arrays and is not truly recursive.
*
* @param mixed callback to apply to each member of the array
* @param array array to map to
* @return array
*/
public static function map_recursive($callback, array $array)
{
foreach ($array as $key => $val)
{
// Map the callback to the key
$array[$key] = is_array($val) ? arr::map_recursive($callback, $val) : call_user_func($callback, $val);
}
return $array;
}
/**
* @param mixed $needle the value to search for
* @param array $haystack an array of values to search in
* @param boolean $sort sort the array now
* @return integer|FALSE the index of the match or FALSE when not found
*/
public static function binary_search($needle, $haystack, $sort = FALSE)
{
if ($sort)
{
sort($haystack);
}
$high = count($haystack) - 1;
$low = 0;
while ($low <= $high)
{
$mid = ($low + $high) >> 1;
if ($haystack[$mid] < $needle)
{
$low = $mid + 1;
}
elseif ($haystack[$mid] > $needle)
{
$high = $mid - 1;
}
else
{
return $mid;
}
}
return FALSE;
}
/**
* Emulates array_merge_recursive, but appends numeric keys and replaces
* associative keys, instead of appending all keys.
*
* @param array any number of arrays
* @return array
*/
public static function merge()
{
$total = func_num_args();
$result = array();
for ($i = 0; $i < $total; $i++)
{
foreach (func_get_arg($i) as $key => $val)
{
if (isset($result[$key]))
{
if (is_array($val))
{
// Arrays are merged recursively
$result[$key] = arr::merge($result[$key], $val);
}
elseif (is_int($key))
{
// Indexed arrays are appended
array_push($result, $val);
}
else
{
// Associative arrays are replaced
$result[$key] = $val;
}
}
else
{
// New values are added
$result[$key] = $val;
}
}
}
return $result;
}
/**
* Overwrites an array with values from input array(s).
* Non-existing keys will not be appended!
*
* @param array key array
* @param array input array(s) that will overwrite key array values
* @return array
*/
public static function overwrite($array1, $array2)
{
foreach (array_intersect_key($array2, $array1) as $key => $value)
{
$array1[$key] = $value;
}
if (func_num_args() > 2)
{
foreach (array_slice(func_get_args(), 2) as $array2)
{
foreach (array_intersect_key($array2, $array1) as $key => $value)
{
$array1[$key] = $value;
}
}
}
return $array1;
}
/**
* Fill an array with a range of numbers.
*
* @param integer stepping
* @param integer ending number
* @return array
*/
public static function range($step = 10, $max = 100)
{
if ($step < 1)
return array();
$array = array();
for ($i = $step; $i <= $max; $i += $step)
{
$array[$i] = $i;
}
return $array;
}
/**
* Recursively convert an array to an object.
*
* @param array array to convert
* @return object
*/
public static function to_object(array $array, $class = 'stdClass')
{
$object = new $class;
foreach ($array as $key => $value)
{
if (is_array($value))
{
// Convert the array to an object
$value = arr::to_object($value, $class);
}
// Add the value to the object
$object->{$key} = $value;
}
return $object;
}
} // End arr

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Cookie helper class.
*
* $Id: cookie.php 3769 2008-12-15 00:48:56Z zombor $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class cookie_Core {
/**
* Sets a cookie with the given parameters.
*
* @param string cookie name or array of config options
* @param string cookie value
* @param integer number of seconds before the cookie expires
* @param string URL path to allow
* @param string URL domain to allow
* @param boolean HTTPS only
* @param boolean HTTP only (requires PHP 5.2 or higher)
* @return boolean
*/
public static function set($name, $value = NULL, $expire = NULL, $path = NULL, $domain = NULL, $secure = NULL, $httponly = NULL)
{
if (headers_sent())
return FALSE;
// If the name param is an array, we import it
is_array($name) and extract($name, EXTR_OVERWRITE);
// Fetch default options
$config = Kohana::config('cookie');
foreach (array('value', 'expire', 'domain', 'path', 'secure', 'httponly') as $item)
{
if ($$item === NULL AND isset($config[$item]))
{
$$item = $config[$item];
}
}
// Expiration timestamp
$expire = ($expire == 0) ? 0 : time() + (int) $expire;
return setcookie($name, $value, $expire, $path, $domain, $secure);
}
/**
* Fetch a cookie value, using the Input library.
*
* @param string cookie name
* @param mixed default value
* @param boolean use XSS cleaning on the value
* @return string
*/
public static function get($name, $default = NULL, $xss_clean = FALSE)
{
return Input::instance()->cookie($name, $default, $xss_clean);
}
/**
* Nullify and unset a cookie.
*
* @param string cookie name
* @param string URL path
* @param string URL domain
* @return boolean
*/
public static function delete($name, $path = NULL, $domain = NULL)
{
if ( ! isset($_COOKIE[$name]))
return FALSE;
// Delete the cookie from globals
unset($_COOKIE[$name]);
// Sets the cookie value to an empty string, and the expiration to 24 hours ago
return cookie::set($name, '', -86400, $path, $domain, FALSE, FALSE);
}
} // End cookie

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Date helper class.
*
* $Id: date.php 4316 2009-05-04 01:03:54Z kiall $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class date_Core {
/**
* Converts a UNIX timestamp to DOS format.
*
* @param integer UNIX timestamp
* @return integer
*/
public static function unix2dos($timestamp = FALSE)
{
$timestamp = ($timestamp === FALSE) ? getdate() : getdate($timestamp);
if ($timestamp['year'] < 1980)
{
return (1 << 21 | 1 << 16);
}
$timestamp['year'] -= 1980;
// What voodoo is this? I have no idea... Geert can explain it though,
// and that's good enough for me.
return ($timestamp['year'] << 25 | $timestamp['mon'] << 21 |
$timestamp['mday'] << 16 | $timestamp['hours'] << 11 |
$timestamp['minutes'] << 5 | $timestamp['seconds'] >> 1);
}
/**
* Converts a DOS timestamp to UNIX format.
*
* @param integer DOS timestamp
* @return integer
*/
public static function dos2unix($timestamp = FALSE)
{
$sec = 2 * ($timestamp & 0x1f);
$min = ($timestamp >> 5) & 0x3f;
$hrs = ($timestamp >> 11) & 0x1f;
$day = ($timestamp >> 16) & 0x1f;
$mon = ($timestamp >> 21) & 0x0f;
$year = ($timestamp >> 25) & 0x7f;
return mktime($hrs, $min, $sec, $mon, $day, $year + 1980);
}
/**
* Returns the offset (in seconds) between two time zones.
* @see http://php.net/timezones
*
* @param string timezone that to find the offset of
* @param string|boolean timezone used as the baseline
* @return integer
*/
public static function offset($remote, $local = TRUE)
{
static $offsets;
// Default values
$remote = (string) $remote;
$local = ($local === TRUE) ? date_default_timezone_get() : (string) $local;
// Cache key name
$cache = $remote.$local;
if (empty($offsets[$cache]))
{
// Create timezone objects
$remote = new DateTimeZone($remote);
$local = new DateTimeZone($local);
// Create date objects from timezones
$time_there = new DateTime('now', $remote);
$time_here = new DateTime('now', $local);
// Find the offset
$offsets[$cache] = $remote->getOffset($time_there) - $local->getOffset($time_here);
}
return $offsets[$cache];
}
/**
* Number of seconds in a minute, incrementing by a step.
*
* @param integer amount to increment each step by, 1 to 30
* @param integer start value
* @param integer end value
* @return array A mirrored (foo => foo) array from 1-60.
*/
public static function seconds($step = 1, $start = 0, $end = 60)
{
// Always integer
$step = (int) $step;
$seconds = array();
for ($i = $start; $i < $end; $i += $step)
{
$seconds[$i] = ($i < 10) ? '0'.$i : $i;
}
return $seconds;
}
/**
* Number of minutes in an hour, incrementing by a step.
*
* @param integer amount to increment each step by, 1 to 30
* @return array A mirrored (foo => foo) array from 1-60.
*/
public static function minutes($step = 5)
{
// Because there are the same number of minutes as seconds in this set,
// we choose to re-use seconds(), rather than creating an entirely new
// function. Shhhh, it's cheating! ;) There are several more of these
// in the following methods.
return date::seconds($step);
}
/**
* Number of hours in a day.
*
* @param integer amount to increment each step by
* @param boolean use 24-hour time
* @param integer the hour to start at
* @return array A mirrored (foo => foo) array from start-12 or start-23.
*/
public static function hours($step = 1, $long = FALSE, $start = NULL)
{
// Default values
$step = (int) $step;
$long = (bool) $long;
$hours = array();
// Set the default start if none was specified.
if ($start === NULL)
{
$start = ($long === FALSE) ? 1 : 0;
}
$hours = array();
// 24-hour time has 24 hours, instead of 12
$size = ($long === TRUE) ? 23 : 12;
for ($i = $start; $i <= $size; $i += $step)
{
$hours[$i] = $i;
}
return $hours;
}
/**
* Returns AM or PM, based on a given hour.
*
* @param integer number of the hour
* @return string
*/
public static function ampm($hour)
{
// Always integer
$hour = (int) $hour;
return ($hour > 11) ? 'PM' : 'AM';
}
/**
* Adjusts a non-24-hour number into a 24-hour number.
*
* @param integer hour to adjust
* @param string AM or PM
* @return string
*/
public static function adjust($hour, $ampm)
{
$hour = (int) $hour;
$ampm = strtolower($ampm);
switch ($ampm)
{
case 'am':
if ($hour == 12)
$hour = 0;
break;
case 'pm':
if ($hour < 12)
$hour += 12;
break;
}
return sprintf('%02s', $hour);
}
/**
* Number of days in month.
*
* @param integer number of month
* @param integer number of year to check month, defaults to the current year
* @return array A mirrored (foo => foo) array of the days.
*/
public static function days($month, $year = FALSE)
{
static $months;
// Always integers
$month = (int) $month;
$year = (int) $year;
// Use the current year by default
$year = ($year == FALSE) ? date('Y') : $year;
// We use caching for months, because time functions are used
if (empty($months[$year][$month]))
{
$months[$year][$month] = array();
// Use date to find the number of days in the given month
$total = date('t', mktime(1, 0, 0, $month, 1, $year)) + 1;
for ($i = 1; $i < $total; $i++)
{
$months[$year][$month][$i] = $i;
}
}
return $months[$year][$month];
}
/**
* Number of months in a year
*
* @return array A mirrored (foo => foo) array from 1-12.
*/
public static function months()
{
return date::hours();
}
/**
* Returns an array of years between a starting and ending year.
* Uses the current year +/- 5 as the max/min.
*
* @param integer starting year
* @param integer ending year
* @return array
*/
public static function years($start = FALSE, $end = FALSE)
{
// Default values
$start = ($start === FALSE) ? date('Y') - 5 : (int) $start;
$end = ($end === FALSE) ? date('Y') + 5 : (int) $end;
$years = array();
// Add one, so that "less than" works
$end += 1;
for ($i = $start; $i < $end; $i++)
{
$years[$i] = $i;
}
return $years;
}
/**
* Returns time difference between two timestamps, in human readable format.
*
* @param integer timestamp
* @param integer timestamp, defaults to the current time
* @param string formatting string
* @return string|array
*/
public static function timespan($time1, $time2 = NULL, $output = 'years,months,weeks,days,hours,minutes,seconds')
{
// Array with the output formats
$output = preg_split('/[^a-z]+/', strtolower((string) $output));
// Invalid output
if (empty($output))
return FALSE;
// Make the output values into keys
extract(array_flip($output), EXTR_SKIP);
// Default values
$time1 = max(0, (int) $time1);
$time2 = empty($time2) ? time() : max(0, (int) $time2);
// Calculate timespan (seconds)
$timespan = abs($time1 - $time2);
// All values found using Google Calculator.
// Years and months do not match the formula exactly, due to leap years.
// Years ago, 60 * 60 * 24 * 365
isset($years) and $timespan -= 31556926 * ($years = (int) floor($timespan / 31556926));
// Months ago, 60 * 60 * 24 * 30
isset($months) and $timespan -= 2629744 * ($months = (int) floor($timespan / 2629743.83));
// Weeks ago, 60 * 60 * 24 * 7
isset($weeks) and $timespan -= 604800 * ($weeks = (int) floor($timespan / 604800));
// Days ago, 60 * 60 * 24
isset($days) and $timespan -= 86400 * ($days = (int) floor($timespan / 86400));
// Hours ago, 60 * 60
isset($hours) and $timespan -= 3600 * ($hours = (int) floor($timespan / 3600));
// Minutes ago, 60
isset($minutes) and $timespan -= 60 * ($minutes = (int) floor($timespan / 60));
// Seconds ago, 1
isset($seconds) and $seconds = $timespan;
// Remove the variables that cannot be accessed
unset($timespan, $time1, $time2);
// Deny access to these variables
$deny = array_flip(array('deny', 'key', 'difference', 'output'));
// Return the difference
$difference = array();
foreach ($output as $key)
{
if (isset($$key) AND ! isset($deny[$key]))
{
// Add requested key to the output
$difference[$key] = $$key;
}
}
// Invalid output formats string
if (empty($difference))
return FALSE;
// If only one output format was asked, don't put it in an array
if (count($difference) === 1)
return current($difference);
// Return array
return $difference;
}
/**
* Returns time difference between two timestamps, in the format:
* N year, N months, N weeks, N days, N hours, N minutes, and N seconds ago
*
* @param integer timestamp
* @param integer timestamp, defaults to the current time
* @param string formatting string
* @return string
*/
public static function timespan_string($time1, $time2 = NULL, $output = 'years,months,weeks,days,hours,minutes,seconds')
{
if ($difference = date::timespan($time1, $time2, $output) AND is_array($difference))
{
// Determine the key of the last item in the array
$last = end($difference);
$last = key($difference);
$span = array();
foreach ($difference as $name => $amount)
{
if ($amount === 0)
{
// Skip empty amounts
continue;
}
// Add the amount to the span
$span[] = ($name === $last ? ' and ' : ', ').$amount.' '.($amount === 1 ? inflector::singular($name) : $name);
}
// If the difference is less than 60 seconds, remove the preceding and.
if (count($span) === 1)
{
$span[0] = ltrim($span[0], 'and ');
}
// Replace difference by making the span into a string
$difference = trim(implode('', $span), ',');
}
elseif (is_int($difference))
{
// Single-value return
$difference = $difference.' '.($difference === 1 ? inflector::singular($output) : $output);
}
return $difference;
}
} // End date

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Download helper class.
*
* $Id: download.php 3769 2008-12-15 00:48:56Z zombor $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class download_Core {
/**
* Force a download of a file to the user's browser. This function is
* binary-safe and will work with any MIME type that Kohana is aware of.
*
* @param string a file path or file name
* @param mixed data to be sent if the filename does not exist
* @param string suggested filename to display in the download
* @return void
*/
public static function force($filename = NULL, $data = NULL, $nicename = NULL)
{
if (empty($filename))
return FALSE;
if (is_file($filename))
{
// Get the real path
$filepath = str_replace('\\', '/', realpath($filename));
// Set filesize
$filesize = filesize($filepath);
// Get filename
$filename = substr(strrchr('/'.$filepath, '/'), 1);
// Get extension
$extension = strtolower(substr(strrchr($filepath, '.'), 1));
}
else
{
// Get filesize
$filesize = strlen($data);
// Make sure the filename does not have directory info
$filename = substr(strrchr('/'.$filename, '/'), 1);
// Get extension
$extension = strtolower(substr(strrchr($filename, '.'), 1));
}
// Get the mime type of the file
$mime = Kohana::config('mimes.'.$extension);
if (empty($mime))
{
// Set a default mime if none was found
$mime = array('application/octet-stream');
}
// Generate the server headers
header('Content-Type: '.$mime[0]);
header('Content-Disposition: attachment; filename="'.(empty($nicename) ? $filename : $nicename).'"');
header('Content-Transfer-Encoding: binary');
header('Content-Length: '.sprintf('%d', $filesize));
// More caching prevention
header('Expires: 0');
if (Kohana::user_agent('browser') === 'Internet Explorer')
{
// Send IE headers
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
}
else
{
// Send normal headers
header('Pragma: no-cache');
}
// Clear the output buffer
Kohana::close_buffers(FALSE);
if (isset($filepath))
{
// Open the file
$handle = fopen($filepath, 'rb');
// Send the file data
fpassthru($handle);
// Close the file
fclose($handle);
}
else
{
// Send the file data
echo $data;
}
}
} // End download

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Email helper class.
*
* $Id: email.php 3769 2008-12-15 00:48:56Z zombor $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class email_Core {
// SwiftMailer instance
protected static $mail;
/**
* Creates a SwiftMailer instance.
*
* @param string DSN connection string
* @return object Swift object
*/
public static function connect($config = NULL)
{
if ( ! class_exists('Swift', FALSE))
{
// Load SwiftMailer
require Kohana::find_file('vendor', 'swift/Swift');
// Register the Swift ClassLoader as an autoload
spl_autoload_register(array('Swift_ClassLoader', 'load'));
}
// Load default configuration
($config === NULL) and $config = Kohana::config('email');
switch ($config['driver'])
{
case 'smtp':
// Set port
$port = empty($config['options']['port']) ? NULL : (int) $config['options']['port'];
if (empty($config['options']['encryption']))
{
// No encryption
$encryption = Swift_Connection_SMTP::ENC_OFF;
}
else
{
// Set encryption
switch (strtolower($config['options']['encryption']))
{
case 'tls': $encryption = Swift_Connection_SMTP::ENC_TLS; break;
case 'ssl': $encryption = Swift_Connection_SMTP::ENC_SSL; break;
}
}
// Create a SMTP connection
$connection = new Swift_Connection_SMTP($config['options']['hostname'], $port, $encryption);
// Do authentication, if part of the DSN
empty($config['options']['username']) or $connection->setUsername($config['options']['username']);
empty($config['options']['password']) or $connection->setPassword($config['options']['password']);
if ( ! empty($config['options']['auth']))
{
// Get the class name and params
list ($class, $params) = arr::callback_string($config['options']['auth']);
if ($class === 'PopB4Smtp')
{
// Load the PopB4Smtp class manually, due to its odd filename
require Kohana::find_file('vendor', 'swift/Swift/Authenticator/$PopB4Smtp$');
}
// Prepare the class name for auto-loading
$class = 'Swift_Authenticator_'.$class;
// Attach the authenticator
$connection->attachAuthenticator(($params === NULL) ? new $class : new $class($params[0]));
}
// Set the timeout to 5 seconds
$connection->setTimeout(empty($config['options']['timeout']) ? 5 : (int) $config['options']['timeout']);
break;
case 'sendmail':
// Create a sendmail connection
$connection = new Swift_Connection_Sendmail
(
empty($config['options']) ? Swift_Connection_Sendmail::AUTO_DETECT : $config['options']
);
// Set the timeout to 5 seconds
$connection->setTimeout(5);
break;
default:
// Use the native connection
$connection = new Swift_Connection_NativeMail($config['options']);
break;
}
// Create the SwiftMailer instance
return email::$mail = new Swift($connection);
}
/**
* Send an email message.
*
* @param string|array recipient email (and name), or an array of To, Cc, Bcc names
* @param string|array sender email (and name)
* @param string message subject
* @param string message body
* @param boolean send email as HTML
* @return integer number of emails sent
*/
public static function send($to, $from, $subject, $message, $html = FALSE)
{
// Connect to SwiftMailer
(email::$mail === NULL) and email::connect();
// Determine the message type
$html = ($html === TRUE) ? 'text/html' : 'text/plain';
// Create the message
$message = new Swift_Message($subject, $message, $html, '8bit', 'utf-8');
if (is_string($to))
{
// Single recipient
$recipients = new Swift_Address($to);
}
elseif (is_array($to))
{
if (isset($to[0]) AND isset($to[1]))
{
// Create To: address set
$to = array('to' => $to);
}
// Create a list of recipients
$recipients = new Swift_RecipientList;
foreach ($to as $method => $set)
{
if ( ! in_array($method, array('to', 'cc', 'bcc')))
{
// Use To: by default
$method = 'to';
}
// Create method name
$method = 'add'.ucfirst($method);
if (is_array($set))
{
// Add a recipient with name
$recipients->$method($set[0], $set[1]);
}
else
{
// Add a recipient without name
$recipients->$method($set);
}
}
}
if (is_string($from))
{
// From without a name
$from = new Swift_Address($from);
}
elseif (is_array($from))
{
// From with a name
$from = new Swift_Address($from[0], $from[1]);
}
return email::$mail->send($message, $recipients, $from);
}
} // End email

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Controls headers that effect client caching of pages
*
* $Id: expires.php 4272 2009-04-25 21:47:26Z zombor $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class expires_Core {
/**
* Sets the amount of time before a page expires
*
* @param integer Seconds before the page expires
* @return boolean
*/
public static function set($seconds = 60)
{
if (expires::check_headers())
{
$now = $expires = time();
// Set the expiration timestamp
$expires += $seconds;
// Send headers
header('Last-Modified: '.gmdate('D, d M Y H:i:s T', $now));
header('Expires: '.gmdate('D, d M Y H:i:s T', $expires));
header('Cache-Control: max-age='.$seconds);
return $expires;
}
return FALSE;
}
/**
* Checks to see if a page should be updated or send Not Modified status
*
* @param integer Seconds added to the modified time received to calculate what should be sent
* @return bool FALSE when the request needs to be updated
*/
public static function check($seconds = 60)
{
if ( ! empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) AND expires::check_headers())
{
if (($strpos = strpos($_SERVER['HTTP_IF_MODIFIED_SINCE'], ';')) !== FALSE)
{
// IE6 and perhaps other IE versions send length too, compensate here
$mod_time = substr($_SERVER['HTTP_IF_MODIFIED_SINCE'], 0, $strpos);
}
else
{
$mod_time = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
}
$mod_time = strtotime($mod_time);
$mod_time_diff = $mod_time + $seconds - time();
if ($mod_time_diff > 0)
{
// Re-send headers
header('Last-Modified: '.gmdate('D, d M Y H:i:s T', $mod_time));
header('Expires: '.gmdate('D, d M Y H:i:s T', time() + $mod_time_diff));
header('Cache-Control: max-age='.$mod_time_diff);
header('Status: 304 Not Modified', TRUE, 304);
// Prevent any output
Event::add('system.display', array('expires', 'prevent_output'));
// Exit to prevent other output
exit;
}
}
return FALSE;
}
/**
* Check headers already created to not step on download or Img_lib's feet
*
* @return boolean
*/
public static function check_headers()
{
foreach (headers_list() as $header)
{
if ((session_cache_limiter() == '' AND stripos($header, 'Last-Modified:') === 0)
OR stripos($header, 'Expires:') === 0)
{
return FALSE;
}
}
return TRUE;
}
/**
* Prevent any output from being displayed. Executed during system.display.
*
* @return void
*/
public static function prevent_output()
{
Kohana::$output = '';
}
} // End expires

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Feed helper class.
*
* $Id: feed.php 4152 2009-04-03 23:26:23Z ixmatus $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class feed_Core {
/**
* Parses a remote feed into an array.
*
* @param string remote feed URL
* @param integer item limit to fetch
* @return array
*/
public static function parse($feed, $limit = 0)
{
// Check if SimpleXML is installed
if( ! function_exists('simplexml_load_file'))
throw new Kohana_User_Exception('Feed Error', 'SimpleXML must be installed!');
// Make limit an integer
$limit = (int) $limit;
// Disable error reporting while opening the feed
$ER = error_reporting(0);
// Allow loading by filename or raw XML string
$load = (is_file($feed) OR valid::url($feed)) ? 'simplexml_load_file' : 'simplexml_load_string';
// Load the feed
$feed = $load($feed, 'SimpleXMLElement', LIBXML_NOCDATA);
// Restore error reporting
error_reporting($ER);
// Feed could not be loaded
if ($feed === FALSE)
return array();
// Detect the feed type. RSS 1.0/2.0 and Atom 1.0 are supported.
$feed = isset($feed->channel) ? $feed->xpath('//item') : $feed->entry;
$i = 0;
$items = array();
foreach ($feed as $item)
{
if ($limit > 0 AND $i++ === $limit)
break;
$items[] = (array) $item;
}
return $items;
}
/**
* Creates a feed from the given parameters.
*
* @param array feed information
* @param array items to add to the feed
* @param string define which format to use
* @param string define which encoding to use
* @return string
*/
public static function create($info, $items, $format = 'rss2', $encoding = 'UTF-8')
{
$info += array('title' => 'Generated Feed', 'link' => '', 'generator' => 'KohanaPHP');
$feed = '<?xml version="1.0" encoding="'.$encoding.'"?><rss version="2.0"><channel></channel></rss>';
$feed = simplexml_load_string($feed);
foreach ($info as $name => $value)
{
if (($name === 'pubDate' OR $name === 'lastBuildDate') AND (is_int($value) OR ctype_digit($value)))
{
// Convert timestamps to RFC 822 formatted dates
$value = date(DATE_RFC822, $value);
}
elseif (($name === 'link' OR $name === 'docs') AND strpos($value, '://') === FALSE)
{
// Convert URIs to URLs
$value = url::site($value, 'http');
}
// Add the info to the channel
$feed->channel->addChild($name, $value);
}
foreach ($items as $item)
{
// Add the item to the channel
$row = $feed->channel->addChild('item');
foreach ($item as $name => $value)
{
if ($name === 'pubDate' AND (is_int($value) OR ctype_digit($value)))
{
// Convert timestamps to RFC 822 formatted dates
$value = date(DATE_RFC822, $value);
}
elseif (($name === 'link' OR $name === 'guid') AND strpos($value, '://') === FALSE)
{
// Convert URIs to URLs
$value = url::site($value, 'http');
}
// Add the info to the row
$row->addChild($name, $value);
}
}
return $feed->asXML();
}
} // End feed

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* File helper class.
*
* $Id: file.php 3769 2008-12-15 00:48:56Z zombor $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class file_Core {
/**
* Attempt to get the mime type from a file. This method is horribly
* unreliable, due to PHP being horribly unreliable when it comes to
* determining the mime-type of a file.
*
* @param string filename
* @return string mime-type, if found
* @return boolean FALSE, if not found
*/
public static function mime($filename)
{
// Make sure the file is readable
if ( ! (is_file($filename) AND is_readable($filename)))
return FALSE;
// Get the extension from the filename
$extension = strtolower(substr(strrchr($filename, '.'), 1));
if (preg_match('/^(?:jpe?g|png|[gt]if|bmp|swf)$/', $extension))
{
// Disable error reporting
$ER = error_reporting(0);
// Use getimagesize() to find the mime type on images
$mime = getimagesize($filename);
// Turn error reporting back on
error_reporting($ER);
// Return the mime type
if (isset($mime['mime']))
return $mime['mime'];
}
if (function_exists('finfo_open'))
{
// Use the fileinfo extension
$finfo = finfo_open(FILEINFO_MIME);
$mime = finfo_file($finfo, $filename);
finfo_close($finfo);
// Return the mime type
return $mime;
}
if (ini_get('mime_magic.magicfile') AND function_exists('mime_content_type'))
{
// Return the mime type using mime_content_type
return mime_content_type($filename);
}
if ( ! KOHANA_IS_WIN)
{
// Attempt to locate use the file command, checking the return value
if ($command = trim(exec('which file', $output, $return)) AND $return === 0)
{
return trim(exec($command.' -bi '.escapeshellarg($filename)));
}
}
if ( ! empty($extension) AND is_array($mime = Kohana::config('mimes.'.$extension)))
{
// Return the mime-type guess, based on the extension
return $mime[0];
}
// Unable to find the mime-type
return FALSE;
}
/**
* Split a file into pieces matching a specific size.
*
* @param string file to be split
* @param string directory to output to, defaults to the same directory as the file
* @param integer size, in MB, for each chunk to be
* @return integer The number of pieces that were created.
*/
public static function split($filename, $output_dir = FALSE, $piece_size = 10)
{
// Find output dir
$output_dir = ($output_dir == FALSE) ? pathinfo(str_replace('\\', '/', realpath($filename)), PATHINFO_DIRNAME) : str_replace('\\', '/', realpath($output_dir));
$output_dir = rtrim($output_dir, '/').'/';
// Open files for writing
$input_file = fopen($filename, 'rb');
// Change the piece size to bytes
$piece_size = 1024 * 1024 * (int) $piece_size; // Size in bytes
// Set up reading variables
$read = 0; // Number of bytes read
$piece = 1; // Current piece
$chunk = 1024 * 8; // Chunk size to read
// Split the file
while ( ! feof($input_file))
{
// Open a new piece
$piece_name = $filename.'.'.str_pad($piece, 3, '0', STR_PAD_LEFT);
$piece_open = @fopen($piece_name, 'wb+') or die('Could not write piece '.$piece_name);
// Fill the current piece
while ($read < $piece_size AND $data = fread($input_file, $chunk))
{
fwrite($piece_open, $data) or die('Could not write to open piece '.$piece_name);
$read += $chunk;
}
// Close the current piece
fclose($piece_open);
// Prepare to open a new piece
$read = 0;
$piece++;
// Make sure that piece is valid
($piece < 999) or die('Maximum of 999 pieces exceeded, try a larger piece size');
}
// Close input file
fclose($input_file);
// Returns the number of pieces that were created
return ($piece - 1);
}
/**
* Join a split file into a whole file.
*
* @param string split filename, without .000 extension
* @param string output filename, if different then an the filename
* @return integer The number of pieces that were joined.
*/
public static function join($filename, $output = FALSE)
{
if ($output == FALSE)
$output = $filename;
// Set up reading variables
$piece = 1; // Current piece
$chunk = 1024 * 8; // Chunk size to read
// Open output file
$output_file = @fopen($output, 'wb+') or die('Could not open output file '.$output);
// Read each piece
while ($piece_open = @fopen(($piece_name = $filename.'.'.str_pad($piece, 3, '0', STR_PAD_LEFT)), 'rb'))
{
// Write the piece into the output file
while ( ! feof($piece_open))
{
fwrite($output_file, fread($piece_open, $chunk));
}
// Close the current piece
fclose($piece_open);
// Prepare for a new piece
$piece++;
// Make sure piece is valid
($piece < 999) or die('Maximum of 999 pieces exceeded');
}
// Close the output file
fclose($output_file);
// Return the number of pieces joined
return ($piece - 1);
}
} // End file

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Form helper class.
*
* $Id: form.php 4291 2009-04-29 22:51:58Z kiall $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class form_Core {
/**
* Generates an opening HTML form tag.
*
* @param string form action attribute
* @param array extra attributes
* @param array hidden fields to be created immediately after the form tag
* @return string
*/
public static function open($action = NULL, $attr = array(), $hidden = NULL)
{
// Make sure that the method is always set
empty($attr['method']) and $attr['method'] = 'post';
if ($attr['method'] !== 'post' AND $attr['method'] !== 'get')
{
// If the method is invalid, use post
$attr['method'] = 'post';
}
if ($action === NULL)
{
// Use the current URL as the default action
$action = url::site(Router::$complete_uri);
}
elseif (strpos($action, '://') === FALSE)
{
// Make the action URI into a URL
$action = url::site($action);
}
// Set action
$attr['action'] = $action;
// Form opening tag
$form = '<form'.form::attributes($attr).'>'."\n";
// Add hidden fields immediate after opening tag
empty($hidden) or $form .= form::hidden($hidden);
return $form;
}
/**
* Generates an opening HTML form tag that can be used for uploading files.
*
* @param string form action attribute
* @param array extra attributes
* @param array hidden fields to be created immediately after the form tag
* @return string
*/
public static function open_multipart($action = NULL, $attr = array(), $hidden = array())
{
// Set multi-part form type
$attr['enctype'] = 'multipart/form-data';
return form::open($action, $attr, $hidden);
}
/**
* Generates a fieldset opening tag.
*
* @param array html attributes
* @param string a string to be attached to the end of the attributes
* @return string
*/
public static function open_fieldset($data = NULL, $extra = '')
{
return '<fieldset'.html::attributes((array) $data).' '.$extra.'>'."\n";
}
/**
* Generates a fieldset closing tag.
*
* @return string
*/
public static function close_fieldset()
{
return '</fieldset>'."\n";
}
/**
* Generates a legend tag for use with a fieldset.
*
* @param string legend text
* @param array HTML attributes
* @param string a string to be attached to the end of the attributes
* @return string
*/
public static function legend($text = '', $data = NULL, $extra = '')
{
return '<legend'.form::attributes((array) $data).' '.$extra.'>'.$text.'</legend>'."\n";
}
/**
* Generates hidden form fields.
* You can pass a simple key/value string or an associative array with multiple values.
*
* @param string|array input name (string) or key/value pairs (array)
* @param string input value, if using an input name
* @return string
*/
public static function hidden($data, $value = '')
{
if ( ! is_array($data))
{
$data = array
(
$data => $value
);
}
$input = '';
foreach ($data as $name => $value)
{
$attr = array
(
'type' => 'hidden',
'name' => $name,
'value' => $value
);
$input .= form::input($attr)."\n";
}
return $input;
}
/**
* Creates an HTML form input tag. Defaults to a text type.
*
* @param string|array input name or an array of HTML attributes
* @param string input value, when using a name
* @param string a string to be attached to the end of the attributes
* @return string
*/
public static function input($data, $value = '', $extra = '')
{
if ( ! is_array($data))
{
$data = array('name' => $data);
}
// Type and value are required attributes
$data += array
(
'type' => 'text',
'value' => $value
);
return '<input'.form::attributes($data).' '.$extra.' />';
}
/**
* Creates a HTML form password input tag.
*
* @param string|array input name or an array of HTML attributes
* @param string input value, when using a name
* @param string a string to be attached to the end of the attributes
* @return string
*/
public static function password($data, $value = '', $extra = '')
{
if ( ! is_array($data))
{
$data = array('name' => $data);
}
$data['type'] = 'password';
return form::input($data, $value, $extra);
}
/**
* Creates an HTML form upload input tag.
*
* @param string|array input name or an array of HTML attributes
* @param string input value, when using a name
* @param string a string to be attached to the end of the attributes
* @return string
*/
public static function upload($data, $value = '', $extra = '')
{
if ( ! is_array($data))
{
$data = array('name' => $data);
}
$data['type'] = 'file';
return form::input($data, $value, $extra);
}
/**
* Creates an HTML form textarea tag.
*
* @param string|array input name or an array of HTML attributes
* @param string input value, when using a name
* @param string a string to be attached to the end of the attributes
* @param boolean encode existing entities
* @return string
*/
public static function textarea($data, $value = '', $extra = '', $double_encode = TRUE)
{
if ( ! is_array($data))
{
$data = array('name' => $data);
}
// Use the value from $data if possible, or use $value
$value = isset($data['value']) ? $data['value'] : $value;
// Value is not part of the attributes
unset($data['value']);
return '<textarea'.form::attributes($data, 'textarea').' '.$extra.'>'.html::specialchars($value, $double_encode).'</textarea>';
}
/**
* Creates an HTML form select tag, or "dropdown menu".
*
* @param string|array input name or an array of HTML attributes
* @param array select options, when using a name
* @param string|array option key(s) that should be selected by default
* @param string a string to be attached to the end of the attributes
* @return string
*/
public static function dropdown($data, $options = NULL, $selected = NULL, $extra = '')
{
if ( ! is_array($data))
{
$data = array('name' => $data);
}
else
{
if (isset($data['options']))
{
// Use data options
$options = $data['options'];
}
if (isset($data['selected']))
{
// Use data selected
$selected = $data['selected'];
}
}
if (is_array($selected))
{
// Multi-select box
$data['multiple'] = 'multiple';
}
else
{
// Single selection (but converted to an array)
$selected = array($selected);
}
$input = '<select'.form::attributes($data, 'select').' '.$extra.'>'."\n";
foreach ((array) $options as $key => $val)
{
// Key should always be a string
$key = (string) $key;
if (is_array($val))
{
$input .= '<optgroup label="'.$key.'">'."\n";
foreach ($val as $inner_key => $inner_val)
{
// Inner key should always be a string
$inner_key = (string) $inner_key;
$sel = in_array($inner_key, $selected) ? ' selected="selected"' : '';
$input .= '<option value="'.$inner_key.'"'.$sel.'>'.$inner_val.'</option>'."\n";
}
$input .= '</optgroup>'."\n";
}
else
{
$sel = in_array($key, $selected) ? ' selected="selected"' : '';
$input .= '<option value="'.$key.'"'.$sel.'>'.$val.'</option>'."\n";
}
}
$input .= '</select>';
return $input;
}
/**
* Creates an HTML form checkbox input tag.
*
* @param string|array input name or an array of HTML attributes
* @param string input value, when using a name
* @param boolean make the checkbox checked by default
* @param string a string to be attached to the end of the attributes
* @return string
*/
public static function checkbox($data, $value = '', $checked = FALSE, $extra = '')
{
if ( ! is_array($data))
{
$data = array('name' => $data);
}
$data['type'] = 'checkbox';
if ($checked == TRUE OR (isset($data['checked']) AND $data['checked'] == TRUE))
{
$data['checked'] = 'checked';
}
else
{
unset($data['checked']);
}
return form::input($data, $value, $extra);
}
/**
* Creates an HTML form radio input tag.
*
* @param string|array input name or an array of HTML attributes
* @param string input value, when using a name
* @param boolean make the radio selected by default
* @param string a string to be attached to the end of the attributes
* @return string
*/
public static function radio($data = '', $value = '', $checked = FALSE, $extra = '')
{
if ( ! is_array($data))
{
$data = array('name' => $data);
}
$data['type'] = 'radio';
if ($checked == TRUE OR (isset($data['checked']) AND $data['checked'] == TRUE))
{
$data['checked'] = 'checked';
}
else
{
unset($data['checked']);
}
return form::input($data, $value, $extra);
}
/**
* Creates an HTML form submit input tag.
*
* @param string|array input name or an array of HTML attributes
* @param string input value, when using a name
* @param string a string to be attached to the end of the attributes
* @return string
*/
public static function submit($data = '', $value = '', $extra = '')
{
if ( ! is_array($data))
{
$data = array('name' => $data);
}
if (empty($data['name']))
{
// Remove the name if it is empty
unset($data['name']);
}
$data['type'] = 'submit';
return form::input($data, $value, $extra);
}
/**
* Creates an HTML form button input tag.
*
* @param string|array input name or an array of HTML attributes
* @param string input value, when using a name
* @param string a string to be attached to the end of the attributes
* @return string
*/
public static function button($data = '', $value = '', $extra = '')
{
if ( ! is_array($data))
{
$data = array('name' => $data);
}
if (empty($data['name']))
{
// Remove the name if it is empty
unset($data['name']);
}
if (isset($data['value']) AND empty($value))
{
$value = arr::remove('value', $data);
}
return '<button'.form::attributes($data, 'button').' '.$extra.'>'.$value.'</button>';
}
/**
* Closes an open form tag.
*
* @param string string to be attached after the closing tag
* @return string
*/
public static function close($extra = '')
{
return '</form>'."\n".$extra;
}
/**
* Creates an HTML form label tag.
*
* @param string|array label "for" name or an array of HTML attributes
* @param string label text or HTML
* @param string a string to be attached to the end of the attributes
* @return string
*/
public static function label($data = '', $text = NULL, $extra = '')
{
if ( ! is_array($data))
{
if (is_string($data))
{
// Specify the input this label is for
$data = array('for' => $data);
}
else
{
// No input specified
$data = array();
}
}
if ($text === NULL AND isset($data['for']))
{
// Make the text the human-readable input name
$text = ucwords(inflector::humanize($data['for']));
}
return '<label'.form::attributes($data).' '.$extra.'>'.$text.'</label>';
}
/**
* Sorts a key/value array of HTML attributes, putting form attributes first,
* and returns an attribute string.
*
* @param array HTML attributes array
* @return string
*/
public static function attributes($attr, $type = NULL)
{
if (empty($attr))
return '';
if (isset($attr['name']) AND empty($attr['id']) AND strpos($attr['name'], '[') === FALSE)
{
if ($type === NULL AND ! empty($attr['type']))
{
// Set the type by the attributes
$type = $attr['type'];
}
switch ($type)
{
case 'text':
case 'textarea':
case 'password':
case 'select':
case 'checkbox':
case 'file':
case 'image':
case 'button':
case 'submit':
// Only specific types of inputs use name to id matching
$attr['id'] = $attr['name'];
break;
}
}
$order = array
(
'action',
'method',
'type',
'id',
'name',
'value',
'src',
'size',
'maxlength',
'rows',
'cols',
'accept',
'tabindex',
'accesskey',
'align',
'alt',
'title',
'class',
'style',
'selected',
'checked',
'readonly',
'disabled'
);
$sorted = array();
foreach ($order as $key)
{
if (isset($attr[$key]))
{
// Move the attribute to the sorted array
$sorted[$key] = $attr[$key];
// Remove the attribute from unsorted array
unset($attr[$key]);
}
}
// Combine the sorted and unsorted attributes and create an HTML string
return html::attributes(array_merge($sorted, $attr));
}
} // End form

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Format helper class.
*
* $Id: format.php 4070 2009-03-11 20:37:38Z Geert $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class format_Core {
/**
* Formats a phone number according to the specified format.
*
* @param string phone number
* @param string format string
* @return string
*/
public static function phone($number, $format = '3-3-4')
{
// Get rid of all non-digit characters in number string
$number_clean = preg_replace('/\D+/', '', (string) $number);
// Array of digits we need for a valid format
$format_parts = preg_split('/[^1-9][^0-9]*/', $format, -1, PREG_SPLIT_NO_EMPTY);
// Number must match digit count of a valid format
if (strlen($number_clean) !== array_sum($format_parts))
return $number;
// Build regex
$regex = '(\d{'.implode('})(\d{', $format_parts).'})';
// Build replace string
for ($i = 1, $c = count($format_parts); $i <= $c; $i++)
{
$format = preg_replace('/(?<!\$)[1-9][0-9]*/', '\$'.$i, $format, 1);
}
// Hocus pocus!
return preg_replace('/^'.$regex.'$/', $format, $number_clean);
}
/**
* Formats a URL to contain a protocol at the beginning.
*
* @param string possibly incomplete URL
* @return string
*/
public static function url($str = '')
{
// Clear protocol-only strings like "http://"
if ($str === '' OR substr($str, -3) === '://')
return '';
// If no protocol given, prepend "http://" by default
if (strpos($str, '://') === FALSE)
return 'http://'.$str;
// Return the original URL
return $str;
}
} // End format

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* HTML helper class.
*
* $Id: html.php 4376 2009-06-01 11:40:39Z samsoir $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class html_Core {
// Enable or disable automatic setting of target="_blank"
public static $windowed_urls = FALSE;
/**
* Convert special characters to HTML entities
*
* @param string string to convert
* @param boolean encode existing entities
* @return string
*/
public static function specialchars($str, $double_encode = TRUE)
{
// Force the string to be a string
$str = (string) $str;
// Do encode existing HTML entities (default)
if ($double_encode === TRUE)
{
$str = htmlspecialchars($str, ENT_QUOTES, 'UTF-8');
}
else
{
// Do not encode existing HTML entities
// From PHP 5.2.3 this functionality is built-in, otherwise use a regex
if (version_compare(PHP_VERSION, '5.2.3', '>='))
{
$str = htmlspecialchars($str, ENT_QUOTES, 'UTF-8', FALSE);
}
else
{
$str = preg_replace('/&(?!(?:#\d++|[a-z]++);)/ui', '&amp;', $str);
$str = str_replace(array('<', '>', '\'', '"'), array('&lt;', '&gt;', '&#39;', '&quot;'), $str);
}
}
return $str;
}
/**
* Perform a html::specialchars() with additional URL specific encoding.
*
* @param string string to convert
* @param boolean encode existing entities
* @return string
*/
public static function specialurlencode($str, $double_encode = TRUE)
{
return str_replace(' ', '%20', html::specialchars($str, $double_encode));
}
/**
* Create HTML link anchors.
*
* @param string URL or URI string
* @param string link text
* @param array HTML anchor attributes
* @param string non-default protocol, eg: https
* @param boolean option to escape the title that is output
* @return string
*/
public static function anchor($uri, $title = NULL, $attributes = NULL, $protocol = NULL, $escape_title = FALSE)
{
if ($uri === '')
{
$site_url = url::base(FALSE);
}
elseif (strpos($uri, '#') === 0)
{
// This is an id target link, not a URL
$site_url = $uri;
}
elseif (strpos($uri, '://') === FALSE)
{
$site_url = url::site($uri, $protocol);
}
else
{
if (html::$windowed_urls === TRUE AND empty($attributes['target']))
{
$attributes['target'] = '_blank';
}
$site_url = $uri;
}
return
// Parsed URL
'<a href="'.html::specialurlencode($site_url, FALSE).'"'
// Attributes empty? Use an empty string
.(is_array($attributes) ? html::attributes($attributes) : '').'>'
// Title empty? Use the parsed URL
.($escape_title ? html::specialchars((($title === NULL) ? $site_url : $title), FALSE) : (($title === NULL) ? $site_url : $title)).'</a>';
}
/**
* Creates an HTML anchor to a file.
*
* @param string name of file to link to
* @param string link text
* @param array HTML anchor attributes
* @param string non-default protocol, eg: ftp
* @return string
*/
public static function file_anchor($file, $title = NULL, $attributes = NULL, $protocol = NULL)
{
return
// Base URL + URI = full URL
'<a href="'.html::specialurlencode(url::base(FALSE, $protocol).$file, FALSE).'"'
// Attributes empty? Use an empty string
.(is_array($attributes) ? html::attributes($attributes) : '').'>'
// Title empty? Use the filename part of the URI
.(($title === NULL) ? end(explode('/', $file)) : $title) .'</a>';
}
/**
* Similar to anchor, but with the protocol parameter first.
*
* @param string link protocol
* @param string URI or URL to link to
* @param string link text
* @param array HTML anchor attributes
* @return string
*/
public static function panchor($protocol, $uri, $title = NULL, $attributes = FALSE)
{
return html::anchor($uri, $title, $attributes, $protocol);
}
/**
* Create an array of anchors from an array of link/title pairs.
*
* @param array link/title pairs
* @return array
*/
public static function anchor_array(array $array)
{
$anchors = array();
foreach ($array as $link => $title)
{
// Create list of anchors
$anchors[] = html::anchor($link, $title);
}
return $anchors;
}
/**
* Generates an obfuscated version of an email address.
*
* @param string email address
* @return string
*/
public static function email($email)
{
$safe = '';
foreach (str_split($email) as $letter)
{
switch (($letter === '@') ? rand(1, 2) : rand(1, 3))
{
// HTML entity code
case 1: $safe .= '&#'.ord($letter).';'; break;
// Hex character code
case 2: $safe .= '&#x'.dechex(ord($letter)).';'; break;
// Raw (no) encoding
case 3: $safe .= $letter;
}
}
return $safe;
}
/**
* Creates an email anchor.
*
* @param string email address to send to
* @param string link text
* @param array HTML anchor attributes
* @return string
*/
public static function mailto($email, $title = NULL, $attributes = NULL)
{
if (empty($email))
return $title;
// Remove the subject or other parameters that do not need to be encoded
if (strpos($email, '?') !== FALSE)
{
// Extract the parameters from the email address
list ($email, $params) = explode('?', $email, 2);
// Make the params into a query string, replacing spaces
$params = '?'.str_replace(' ', '%20', $params);
}
else
{
// No parameters
$params = '';
}
// Obfuscate email address
$safe = html::email($email);
// Title defaults to the encoded email address
empty($title) and $title = $safe;
// Parse attributes
empty($attributes) or $attributes = html::attributes($attributes);
// Encoded start of the href="" is a static encoded version of 'mailto:'
return '<a href="&#109;&#097;&#105;&#108;&#116;&#111;&#058;'.$safe.$params.'"'.$attributes.'>'.$title.'</a>';
}
/**
* Generate a "breadcrumb" list of anchors representing the URI.
*
* @param array segments to use as breadcrumbs, defaults to using Router::$segments
* @return string
*/
public static function breadcrumb($segments = NULL)
{
empty($segments) and $segments = Router::$segments;
$array = array();
while ($segment = array_pop($segments))
{
$array[] = html::anchor
(
// Complete URI for the URL
implode('/', $segments).'/'.$segment,
// Title for the current segment
ucwords(inflector::humanize($segment))
);
}
// Retrun the array of all the segments
return array_reverse($array);
}
/**
* Creates a meta tag.
*
* @param string|array tag name, or an array of tags
* @param string tag "content" value
* @return string
*/
public static function meta($tag, $value = NULL)
{
if (is_array($tag))
{
$tags = array();
foreach ($tag as $t => $v)
{
// Build each tag and add it to the array
$tags[] = html::meta($t, $v);
}
// Return all of the tags as a string
return implode("\n", $tags);
}
// Set the meta attribute value
$attr = in_array(strtolower($tag), Kohana::config('http.meta_equiv')) ? 'http-equiv' : 'name';
return '<meta '.$attr.'="'.$tag.'" content="'.$value.'" />';
}
/**
* Creates a stylesheet link.
*
* @param string|array filename, or array of filenames to match to array of medias
* @param string|array media type of stylesheet, or array to match filenames
* @param boolean include the index_page in the link
* @return string
*/
public static function stylesheet($style, $media = FALSE, $index = FALSE)
{
return html::link($style, 'stylesheet', 'text/css', '.css', $media, $index);
}
/**
* Creates a link tag.
*
* @param string|array filename
* @param string|array relationship
* @param string|array mimetype
* @param string specifies suffix of the file
* @param string|array specifies on what device the document will be displayed
* @param boolean include the index_page in the link
* @return string
*/
public static function link($href, $rel, $type, $suffix = FALSE, $media = FALSE, $index = FALSE)
{
$compiled = '';
if (is_array($href))
{
foreach ($href as $_href)
{
$_rel = is_array($rel) ? array_shift($rel) : $rel;
$_type = is_array($type) ? array_shift($type) : $type;
$_media = is_array($media) ? array_shift($media) : $media;
$compiled .= html::link($_href, $_rel, $_type, $suffix, $_media, $index);
}
}
else
{
if (strpos($href, '://') === FALSE)
{
// Make the URL absolute
$href = url::base($index).$href;
}
$length = strlen($suffix);
if ( $length > 0 AND substr_compare($href, $suffix, -$length, $length, FALSE) !== 0)
{
// Add the defined suffix
$href .= $suffix;
}
$attr = array
(
'rel' => $rel,
'type' => $type,
'href' => $href,
);
if ( ! empty($media))
{
// Add the media type to the attributes
$attr['media'] = $media;
}
$compiled = '<link'.html::attributes($attr).' />';
}
return $compiled."\n";
}
/**
* Creates a script link.
*
* @param string|array filename
* @param boolean include the index_page in the link
* @return string
*/
public static function script($script, $index = FALSE)
{
$compiled = '';
if (is_array($script))
{
foreach ($script as $name)
{
$compiled .= html::script($name, $index);
}
}
else
{
if (strpos($script, '://') === FALSE)
{
// Add the suffix only when it's not already present
$script = url::base((bool) $index).$script;
}
if (substr_compare($script, '.js', -3, 3, FALSE) !== 0)
{
// Add the javascript suffix
$script .= '.js';
}
$compiled = '<script type="text/javascript" src="'.$script.'"></script>';
}
return $compiled."\n";
}
/**
* Creates a image link.
*
* @param string image source, or an array of attributes
* @param string|array image alt attribute, or an array of attributes
* @param boolean include the index_page in the link
* @return string
*/
public static function image($src = NULL, $alt = NULL, $index = FALSE)
{
// Create attribute list
$attributes = is_array($src) ? $src : array('src' => $src);
if (is_array($alt))
{
$attributes += $alt;
}
elseif ( ! empty($alt))
{
// Add alt to attributes
$attributes['alt'] = $alt;
}
if (strpos($attributes['src'], '://') === FALSE)
{
// Make the src attribute into an absolute URL
$attributes['src'] = url::base($index).$attributes['src'];
}
return '<img'.html::attributes($attributes).' />';
}
/**
* Compiles an array of HTML attributes into an attribute string.
*
* @param string|array array of attributes
* @return string
*/
public static function attributes($attrs)
{
if (empty($attrs))
return '';
if (is_string($attrs))
return ' '.$attrs;
$compiled = '';
foreach ($attrs as $key => $val)
{
$compiled .= ' '.$key.'="'.html::specialchars($val).'"';
}
return $compiled;
}
} // End html

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Inflector helper class.
*
* $Id: inflector.php 4072 2009-03-13 17:20:38Z jheathco $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class inflector_Core {
// Cached inflections
protected static $cache = array();
// Uncountable and irregular words
protected static $uncountable;
protected static $irregular;
/**
* Checks if a word is defined as uncountable.
*
* @param string word to check
* @return boolean
*/
public static function uncountable($str)
{
if (inflector::$uncountable === NULL)
{
// Cache uncountables
inflector::$uncountable = Kohana::config('inflector.uncountable');
// Make uncountables mirroed
inflector::$uncountable = array_combine(inflector::$uncountable, inflector::$uncountable);
}
return isset(inflector::$uncountable[strtolower($str)]);
}
/**
* Makes a plural word singular.
*
* @param string word to singularize
* @param integer number of things
* @return string
*/
public static function singular($str, $count = NULL)
{
// Remove garbage
$str = strtolower(trim($str));
if (is_string($count))
{
// Convert to integer when using a digit string
$count = (int) $count;
}
// Do nothing with a single count
if ($count === 0 OR $count > 1)
return $str;
// Cache key name
$key = 'singular_'.$str.$count;
if (isset(inflector::$cache[$key]))
return inflector::$cache[$key];
if (inflector::uncountable($str))
return inflector::$cache[$key] = $str;
if (empty(inflector::$irregular))
{
// Cache irregular words
inflector::$irregular = Kohana::config('inflector.irregular');
}
if ($irregular = array_search($str, inflector::$irregular))
{
$str = $irregular;
}
elseif (preg_match('/[sxz]es$/', $str) OR preg_match('/[^aeioudgkprt]hes$/', $str))
{
// Remove "es"
$str = substr($str, 0, -2);
}
elseif (preg_match('/[^aeiou]ies$/', $str))
{
$str = substr($str, 0, -3).'y';
}
elseif (substr($str, -1) === 's' AND substr($str, -2) !== 'ss')
{
$str = substr($str, 0, -1);
}
return inflector::$cache[$key] = $str;
}
/**
* Makes a singular word plural.
*
* @param string word to pluralize
* @return string
*/
public static function plural($str, $count = NULL)
{
// Remove garbage
$str = strtolower(trim($str));
if (is_string($count))
{
// Convert to integer when using a digit string
$count = (int) $count;
}
// Do nothing with singular
if ($count === 1)
return $str;
// Cache key name
$key = 'plural_'.$str.$count;
if (isset(inflector::$cache[$key]))
return inflector::$cache[$key];
if (inflector::uncountable($str))
return inflector::$cache[$key] = $str;
if (empty(inflector::$irregular))
{
// Cache irregular words
inflector::$irregular = Kohana::config('inflector.irregular');
}
if (isset(inflector::$irregular[$str]))
{
$str = inflector::$irregular[$str];
}
elseif (preg_match('/[sxz]$/', $str) OR preg_match('/[^aeioudgkprt]h$/', $str))
{
$str .= 'es';
}
elseif (preg_match('/[^aeiou]y$/', $str))
{
// Change "y" to "ies"
$str = substr_replace($str, 'ies', -1);
}
else
{
$str .= 's';
}
// Set the cache and return
return inflector::$cache[$key] = $str;
}
/**
* Makes a phrase camel case.
*
* @param string phrase to camelize
* @return string
*/
public static function camelize($str)
{
$str = 'x'.strtolower(trim($str));
$str = ucwords(preg_replace('/[\s_]+/', ' ', $str));
return substr(str_replace(' ', '', $str), 1);
}
/**
* Makes a phrase underscored instead of spaced.
*
* @param string phrase to underscore
* @return string
*/
public static function underscore($str)
{
return preg_replace('/\s+/', '_', trim($str));
}
/**
* Makes an underscored or dashed phrase human-reable.
*
* @param string phrase to make human-reable
* @return string
*/
public static function humanize($str)
{
return preg_replace('/[_-]+/', ' ', trim($str));
}
} // End inflector

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Number helper class.
*
* $Id: num.php 3769 2008-12-15 00:48:56Z zombor $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class num_Core {
/**
* Round a number to the nearest nth
*
* @param integer number to round
* @param integer number to round to
* @return integer
*/
public static function round($number, $nearest = 5)
{
return round($number / $nearest) * $nearest;
}
} // End num

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Remote url/file helper.
*
* $Id: remote.php 3769 2008-12-15 00:48:56Z zombor $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class remote_Core {
public static function status($url)
{
if ( ! valid::url($url, 'http'))
return FALSE;
// Get the hostname and path
$url = parse_url($url);
if (empty($url['path']))
{
// Request the root document
$url['path'] = '/';
}
// Open a remote connection
$remote = fsockopen($url['host'], 80, $errno, $errstr, 5);
if ( ! is_resource($remote))
return FALSE;
// Set CRLF
$CRLF = "\r\n";
// Send request
fwrite($remote, 'HEAD '.$url['path'].' HTTP/1.0'.$CRLF);
fwrite($remote, 'Host: '.$url['host'].$CRLF);
fwrite($remote, 'Connection: close'.$CRLF);
fwrite($remote, 'User-Agent: Kohana Framework (+http://kohanaphp.com/)'.$CRLF);
// Send one more CRLF to terminate the headers
fwrite($remote, $CRLF);
while ( ! feof($remote))
{
// Get the line
$line = trim(fgets($remote, 512));
if ($line !== '' AND preg_match('#^HTTP/1\.[01] (\d{3})#', $line, $matches))
{
// Response code found
$response = (int) $matches[1];
break;
}
}
// Close the connection
fclose($remote);
return isset($response) ? $response : FALSE;
}
} // End remote

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Request helper class.
*
* $Id: request.php 4355 2009-05-15 17:18:28Z kiall $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class request_Core {
// Possible HTTP methods
protected static $http_methods = array('get', 'head', 'options', 'post', 'put', 'delete');
// Content types from client's HTTP Accept request header (array)
protected static $accept_types;
/**
* Returns the HTTP referrer, or the default if the referrer is not set.
*
* @param mixed default to return
* @return string
*/
public static function referrer($default = FALSE)
{
if ( ! empty($_SERVER['HTTP_REFERER']))
{
// Set referrer
$ref = $_SERVER['HTTP_REFERER'];
if (strpos($ref, url::base(FALSE)) === 0)
{
// Remove the base URL from the referrer
$ref = substr($ref, strlen(url::base(FALSE)));
}
}
return isset($ref) ? $ref : $default;
}
/**
* Returns the current request protocol, based on $_SERVER['https']. In CLI
* mode, NULL will be returned.
*
* @return string
*/
public static function protocol()
{
if (PHP_SAPI === 'cli')
{
return NULL;
}
elseif ( ! empty($_SERVER['HTTPS']) AND $_SERVER['HTTPS'] === 'on')
{
return 'https';
}
else
{
return 'http';
}
}
/**
* Tests if the current request is an AJAX request by checking the X-Requested-With HTTP
* request header that most popular JS frameworks now set for AJAX calls.
*
* @return boolean
*/
public static function is_ajax()
{
return (isset($_SERVER['HTTP_X_REQUESTED_WITH']) AND strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) === 'xmlhttprequest');
}
/**
* Returns current request method.
*
* @throws Kohana_Exception in case of an unknown request method
* @return string
*/
public static function method()
{
$method = strtolower($_SERVER['REQUEST_METHOD']);
if ( ! in_array($method, request::$http_methods))
throw new Kohana_Exception('request.unknown_method', $method);
return $method;
}
/**
* Returns boolean of whether client accepts content type.
*
* @param string content type
* @param boolean set to TRUE to disable wildcard checking
* @return boolean
*/
public static function accepts($type = NULL, $explicit_check = FALSE)
{
request::parse_accept_header();
if ($type === NULL)
return request::$accept_types;
return (request::accepts_at_quality($type, $explicit_check) > 0);
}
/**
* Compare the q values for given array of content types and return the one with the highest value.
* If items are found to have the same q value, the first one encountered in the given array wins.
* If all items in the given array have a q value of 0, FALSE is returned.
*
* @param array content types
* @param boolean set to TRUE to disable wildcard checking
* @return mixed string mime type with highest q value, FALSE if none of the given types are accepted
*/
public static function preferred_accept($types, $explicit_check = FALSE)
{
// Initialize
$mime_types = array();
$max_q = 0;
$preferred = FALSE;
// Load q values for all given content types
foreach (array_unique($types) as $type)
{
$mime_types[$type] = request::accepts_at_quality($type, $explicit_check);
}
// Look for the highest q value
foreach ($mime_types as $type => $q)
{
if ($q > $max_q)
{
$max_q = $q;
$preferred = $type;
}
}
return $preferred;
}
/**
* Returns quality factor at which the client accepts content type.
*
* @param string content type (e.g. "image/jpg", "jpg")
* @param boolean set to TRUE to disable wildcard checking
* @return integer|float
*/
public static function accepts_at_quality($type = NULL, $explicit_check = FALSE)
{
request::parse_accept_header();
// Normalize type
$type = strtolower((string) $type);
// General content type (e.g. "jpg")
if (strpos($type, '/') === FALSE)
{
// Don't accept anything by default
$q = 0;
// Look up relevant mime types
foreach ((array) Kohana::config('mimes.'.$type) as $type)
{
$q2 = request::accepts_at_quality($type, $explicit_check);
$q = ($q2 > $q) ? $q2 : $q;
}
return $q;
}
// Content type with subtype given (e.g. "image/jpg")
$type = explode('/', $type, 2);
// Exact match
if (isset(request::$accept_types[$type[0]][$type[1]]))
return request::$accept_types[$type[0]][$type[1]];
// Wildcard match (if not checking explicitly)
if ($explicit_check === FALSE AND isset(request::$accept_types[$type[0]]['*']))
return request::$accept_types[$type[0]]['*'];
// Catch-all wildcard match (if not checking explicitly)
if ($explicit_check === FALSE AND isset(request::$accept_types['*']['*']))
return request::$accept_types['*']['*'];
// Content type not accepted
return 0;
}
/**
* Parses client's HTTP Accept request header, and builds array structure representing it.
*
* @return void
*/
protected static function parse_accept_header()
{
// Run this function just once
if (request::$accept_types !== NULL)
return;
// Initialize accept_types array
request::$accept_types = array();
// No HTTP Accept header found
if (empty($_SERVER['HTTP_ACCEPT']))
{
// Accept everything
request::$accept_types['*']['*'] = 1;
return;
}
// Remove linebreaks and parse the HTTP Accept header
foreach (explode(',', str_replace(array("\r", "\n"), '', $_SERVER['HTTP_ACCEPT'])) as $accept_entry)
{
// Explode each entry in content type and possible quality factor
$accept_entry = explode(';', trim($accept_entry), 2);
// Explode each content type (e.g. "text/html")
$type = explode('/', $accept_entry[0], 2);
// Skip invalid content types
if ( ! isset($type[1]))
continue;
// Assume a default quality factor of 1 if no custom q value found
$q = (isset($accept_entry[1]) AND preg_match('~\bq\s*+=\s*+([.0-9]+)~', $accept_entry[1], $match)) ? (float) $match[1] : 1;
// Populate accept_types array
if ( ! isset(request::$accept_types[$type[0]][$type[1]]) OR $q > request::$accept_types[$type[0]][$type[1]])
{
request::$accept_types[$type[0]][$type[1]] = $q;
}
}
}
} // End request

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Security helper class.
*
* $Id: security.php 3769 2008-12-15 00:48:56Z zombor $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class security_Core {
/**
* Sanitize a string with the xss_clean method.
*
* @param string string to sanitize
* @return string
*/
public static function xss_clean($str)
{
return Input::instance()->xss_clean($str);
}
/**
* Remove image tags from a string.
*
* @param string string to sanitize
* @return string
*/
public static function strip_image_tags($str)
{
return preg_replace('#<img\s.*?(?:src\s*=\s*["\']?([^"\'<>\s]*)["\']?[^>]*)?>#is', '$1', $str);
}
/**
* Remove PHP tags from a string.
*
* @param string string to sanitize
* @return string
*/
public static function encode_php_tags($str)
{
return str_replace(array('<?', '?>'), array('&lt;?', '?&gt;'), $str);
}
} // End security

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Text helper class.
*
* $Id: text.php 3769 2008-12-15 00:48:56Z zombor $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class text_Core {
/**
* Limits a phrase to a given number of words.
*
* @param string phrase to limit words of
* @param integer number of words to limit to
* @param string end character or entity
* @return string
*/
public static function limit_words($str, $limit = 100, $end_char = NULL)
{
$limit = (int) $limit;
$end_char = ($end_char === NULL) ? '&#8230;' : $end_char;
if (trim($str) === '')
return $str;
if ($limit <= 0)
return $end_char;
preg_match('/^\s*+(?:\S++\s*+){1,'.$limit.'}/u', $str, $matches);
// Only attach the end character if the matched string is shorter
// than the starting string.
return rtrim($matches[0]).(strlen($matches[0]) === strlen($str) ? '' : $end_char);
}
/**
* Limits a phrase to a given number of characters.
*
* @param string phrase to limit characters of
* @param integer number of characters to limit to
* @param string end character or entity
* @param boolean enable or disable the preservation of words while limiting
* @return string
*/
public static function limit_chars($str, $limit = 100, $end_char = NULL, $preserve_words = FALSE)
{
$end_char = ($end_char === NULL) ? '&#8230;' : $end_char;
$limit = (int) $limit;
if (trim($str) === '' OR utf8::strlen($str) <= $limit)
return $str;
if ($limit <= 0)
return $end_char;
if ($preserve_words == FALSE)
{
return rtrim(utf8::substr($str, 0, $limit)).$end_char;
}
preg_match('/^.{'.($limit - 1).'}\S*/us', $str, $matches);
return rtrim($matches[0]).(strlen($matches[0]) == strlen($str) ? '' : $end_char);
}
/**
* Alternates between two or more strings.
*
* @param string strings to alternate between
* @return string
*/
public static function alternate()
{
static $i;
if (func_num_args() === 0)
{
$i = 0;
return '';
}
$args = func_get_args();
return $args[($i++ % count($args))];
}
/**
* Generates a random string of a given type and length.
*
* @param string a type of pool, or a string of characters to use as the pool
* @param integer length of string to return
* @return string
*
* @tutorial alnum alpha-numeric characters
* @tutorial alpha alphabetical characters
* @tutorial hexdec hexadecimal characters, 0-9 plus a-f
* @tutorial numeric digit characters, 0-9
* @tutorial nozero digit characters, 1-9
* @tutorial distinct clearly distinct alpha-numeric characters
*/
public static function random($type = 'alnum', $length = 8)
{
$utf8 = FALSE;
switch ($type)
{
case 'alnum':
$pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
break;
case 'alpha':
$pool = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
break;
case 'hexdec':
$pool = '0123456789abcdef';
break;
case 'numeric':
$pool = '0123456789';
break;
case 'nozero':
$pool = '123456789';
break;
case 'distinct':
$pool = '2345679ACDEFHJKLMNPRSTUVWXYZ';
break;
default:
$pool = (string) $type;
$utf8 = ! utf8::is_ascii($pool);
break;
}
// Split the pool into an array of characters
$pool = ($utf8 === TRUE) ? utf8::str_split($pool, 1) : str_split($pool, 1);
// Largest pool key
$max = count($pool) - 1;
$str = '';
for ($i = 0; $i < $length; $i++)
{
// Select a random character from the pool and add it to the string
$str .= $pool[mt_rand(0, $max)];
}
// Make sure alnum strings contain at least one letter and one digit
if ($type === 'alnum' AND $length > 1)
{
if (ctype_alpha($str))
{
// Add a random digit
$str[mt_rand(0, $length - 1)] = chr(mt_rand(48, 57));
}
elseif (ctype_digit($str))
{
// Add a random letter
$str[mt_rand(0, $length - 1)] = chr(mt_rand(65, 90));
}
}
return $str;
}
/**
* Reduces multiple slashes in a string to single slashes.
*
* @param string string to reduce slashes of
* @return string
*/
public static function reduce_slashes($str)
{
return preg_replace('#(?<!:)//+#', '/', $str);
}
/**
* Replaces the given words with a string.
*
* @param string phrase to replace words in
* @param array words to replace
* @param string replacement string
* @param boolean replace words across word boundries (space, period, etc)
* @return string
*/
public static function censor($str, $badwords, $replacement = '#', $replace_partial_words = FALSE)
{
foreach ((array) $badwords as $key => $badword)
{
$badwords[$key] = str_replace('\*', '\S*?', preg_quote((string) $badword));
}
$regex = '('.implode('|', $badwords).')';
if ($replace_partial_words == TRUE)
{
// Just using \b isn't sufficient when we need to replace a badword that already contains word boundaries itself
$regex = '(?<=\b|\s|^)'.$regex.'(?=\b|\s|$)';
}
$regex = '!'.$regex.'!ui';
if (utf8::strlen($replacement) == 1)
{
$regex .= 'e';
return preg_replace($regex, 'str_repeat($replacement, utf8::strlen(\'$1\'))', $str);
}
return preg_replace($regex, $replacement, $str);
}
/**
* Finds the text that is similar between a set of words.
*
* @param array words to find similar text of
* @return string
*/
public static function similar(array $words)
{
// First word is the word to match against
$word = current($words);
for ($i = 0, $max = strlen($word); $i < $max; ++$i)
{
foreach ($words as $w)
{
// Once a difference is found, break out of the loops
if ( ! isset($w[$i]) OR $w[$i] !== $word[$i])
break 2;
}
}
// Return the similar text
return substr($word, 0, $i);
}
/**
* Converts text email addresses and anchors into links.
*
* @param string text to auto link
* @return string
*/
public static function auto_link($text)
{
// Auto link emails first to prevent problems with "www.domain.com@example.com"
return text::auto_link_urls(text::auto_link_emails($text));
}
/**
* Converts text anchors into links.
*
* @param string text to auto link
* @return string
*/
public static function auto_link_urls($text)
{
// Finds all http/https/ftp/ftps links that are not part of an existing html anchor
if (preg_match_all('~\b(?<!href="|">)(?:ht|f)tps?://\S+(?:/|\b)~i', $text, $matches))
{
foreach ($matches[0] as $match)
{
// Replace each link with an anchor
$text = str_replace($match, html::anchor($match), $text);
}
}
// Find all naked www.links.com (without http://)
if (preg_match_all('~\b(?<!://)www(?:\.[a-z0-9][-a-z0-9]*+)+\.[a-z]{2,6}\b~i', $text, $matches))
{
foreach ($matches[0] as $match)
{
// Replace each link with an anchor
$text = str_replace($match, html::anchor('http://'.$match, $match), $text);
}
}
return $text;
}
/**
* Converts text email addresses into links.
*
* @param string text to auto link
* @return string
*/
public static function auto_link_emails($text)
{
// Finds all email addresses that are not part of an existing html mailto anchor
// Note: The "58;" negative lookbehind prevents matching of existing encoded html mailto anchors
// The html entity for a colon (:) is &#58; or &#058; or &#0058; etc.
if (preg_match_all('~\b(?<!href="mailto:|">|58;)(?!\.)[-+_a-z0-9.]++(?<!\.)@(?![-.])[-a-z0-9.]+(?<!\.)\.[a-z]{2,6}\b~i', $text, $matches))
{
foreach ($matches[0] as $match)
{
// Replace each email with an encoded mailto
$text = str_replace($match, html::mailto($match), $text);
}
}
return $text;
}
/**
* Automatically applies <p> and <br /> markup to text. Basically nl2br() on steroids.
*
* @param string subject
* @return string
*/
public static function auto_p($str)
{
// Trim whitespace
if (($str = trim($str)) === '')
return '';
// Standardize newlines
$str = str_replace(array("\r\n", "\r"), "\n", $str);
// Trim whitespace on each line
$str = preg_replace('~^[ \t]+~m', '', $str);
$str = preg_replace('~[ \t]+$~m', '', $str);
// The following regexes only need to be executed if the string contains html
if ($html_found = (strpos($str, '<') !== FALSE))
{
// Elements that should not be surrounded by p tags
$no_p = '(?:p|div|h[1-6r]|ul|ol|li|blockquote|d[dlt]|pre|t[dhr]|t(?:able|body|foot|head)|c(?:aption|olgroup)|form|s(?:elect|tyle)|a(?:ddress|rea)|ma(?:p|th))';
// Put at least two linebreaks before and after $no_p elements
$str = preg_replace('~^<'.$no_p.'[^>]*+>~im', "\n$0", $str);
$str = preg_replace('~</'.$no_p.'\s*+>$~im', "$0\n", $str);
}
// Do the <p> magic!
$str = '<p>'.trim($str).'</p>';
$str = preg_replace('~\n{2,}~', "</p>\n\n<p>", $str);
// The following regexes only need to be executed if the string contains html
if ($html_found !== FALSE)
{
// Remove p tags around $no_p elements
$str = preg_replace('~<p>(?=</?'.$no_p.'[^>]*+>)~i', '', $str);
$str = preg_replace('~(</?'.$no_p.'[^>]*+>)</p>~i', '$1', $str);
}
// Convert single linebreaks to <br />
$str = preg_replace('~(?<!\n)\n(?!\n)~', "<br />\n", $str);
return $str;
}
/**
* Returns human readable sizes.
* @see Based on original functions written by:
* @see Aidan Lister: http://aidanlister.com/repos/v/function.size_readable.php
* @see Quentin Zervaas: http://www.phpriot.com/d/code/strings/filesize-format/
*
* @param integer size in bytes
* @param string a definitive unit
* @param string the return string format
* @param boolean whether to use SI prefixes or IEC
* @return string
*/
public static function bytes($bytes, $force_unit = NULL, $format = NULL, $si = TRUE)
{
// Format string
$format = ($format === NULL) ? '%01.2f %s' : (string) $format;
// IEC prefixes (binary)
if ($si == FALSE OR strpos($force_unit, 'i') !== FALSE)
{
$units = array('B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB');
$mod = 1024;
}
// SI prefixes (decimal)
else
{
$units = array('B', 'kB', 'MB', 'GB', 'TB', 'PB');
$mod = 1000;
}
// Determine unit to use
if (($power = array_search((string) $force_unit, $units)) === FALSE)
{
$power = ($bytes > 0) ? floor(log($bytes, $mod)) : 0;
}
return sprintf($format, $bytes / pow($mod, $power), $units[$power]);
}
/**
* Prevents widow words by inserting a non-breaking space between the last two words.
* @see http://www.shauninman.com/archive/2006/08/22/widont_wordpress_plugin
*
* @param string string to remove widows from
* @return string
*/
public static function widont($str)
{
$str = rtrim($str);
$space = strrpos($str, ' ');
if ($space !== FALSE)
{
$str = substr($str, 0, $space).'&nbsp;'.substr($str, $space + 1);
}
return $str;
}
} // End text

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Upload helper class for working with the global $_FILES
* array and Validation library.
*
* $Id: upload.php 3769 2008-12-15 00:48:56Z zombor $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class upload_Core {
/**
* Save an uploaded file to a new location.
*
* @param mixed name of $_FILE input or array of upload data
* @param string new filename
* @param string new directory
* @param integer chmod mask
* @return string full path to new file
*/
public static function save($file, $filename = NULL, $directory = NULL, $chmod = 0644)
{
// Load file data from FILES if not passed as array
$file = is_array($file) ? $file : $_FILES[$file];
if ($filename === NULL)
{
// Use the default filename, with a timestamp pre-pended
$filename = time().$file['name'];
}
if (Kohana::config('upload.remove_spaces') === TRUE)
{
// Remove spaces from the filename
$filename = preg_replace('/\s+/', '_', $filename);
}
if ($directory === NULL)
{
// Use the pre-configured upload directory
$directory = Kohana::config('upload.directory', TRUE);
}
// Make sure the directory ends with a slash
$directory = rtrim($directory, '/').'/';
if ( ! is_dir($directory) AND Kohana::config('upload.create_directories') === TRUE)
{
// Create the upload directory
mkdir($directory, 0777, TRUE);
}
if ( ! is_writable($directory))
throw new Kohana_Exception('upload.not_writable', $directory);
if (is_uploaded_file($file['tmp_name']) AND move_uploaded_file($file['tmp_name'], $filename = $directory.$filename))
{
if ($chmod !== FALSE)
{
// Set permissions on filename
chmod($filename, $chmod);
}
// Return new file path
return $filename;
}
return FALSE;
}
/* Validation Rules */
/**
* Tests if input data is valid file type, even if no upload is present.
*
* @param array $_FILES item
* @return bool
*/
public static function valid($file)
{
return (is_array($file)
AND isset($file['error'])
AND isset($file['name'])
AND isset($file['type'])
AND isset($file['tmp_name'])
AND isset($file['size']));
}
/**
* Tests if input data has valid upload data.
*
* @param array $_FILES item
* @return bool
*/
public static function required(array $file)
{
return (isset($file['tmp_name'])
AND isset($file['error'])
AND is_uploaded_file($file['tmp_name'])
AND (int) $file['error'] === UPLOAD_ERR_OK);
}
/**
* Validation rule to test if an uploaded file is allowed by extension.
*
* @param array $_FILES item
* @param array allowed file extensions
* @return bool
*/
public static function type(array $file, array $allowed_types)
{
if ((int) $file['error'] !== UPLOAD_ERR_OK)
return TRUE;
// Get the default extension of the file
$extension = strtolower(substr(strrchr($file['name'], '.'), 1));
// Get the mime types for the extension
$mime_types = Kohana::config('mimes.'.$extension);
// Make sure there is an extension, that the extension is allowed, and that mime types exist
return ( ! empty($extension) AND in_array($extension, $allowed_types) AND is_array($mime_types));
}
/**
* Validation rule to test if an uploaded file is allowed by file size.
* File sizes are defined as: SB, where S is the size (1, 15, 300, etc) and
* B is the byte modifier: (B)ytes, (K)ilobytes, (M)egabytes, (G)igabytes.
* Eg: to limit the size to 1MB or less, you would use "1M".
*
* @param array $_FILES item
* @param array maximum file size
* @return bool
*/
public static function size(array $file, array $size)
{
if ((int) $file['error'] !== UPLOAD_ERR_OK)
return TRUE;
// Only one size is allowed
$size = strtoupper($size[0]);
if ( ! preg_match('/[0-9]++[BKMG]/', $size))
return FALSE;
// Make the size into a power of 1024
switch (substr($size, -1))
{
case 'G': $size = intval($size) * pow(1024, 3); break;
case 'M': $size = intval($size) * pow(1024, 2); break;
case 'K': $size = intval($size) * pow(1024, 1); break;
default: $size = intval($size); break;
}
// Test that the file is under or equal to the max size
return ($file['size'] <= $size);
}
} // End upload

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<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* URL helper class.
*
* $Id: url.php 4029 2009-03-03 12:39:32Z Shadowhand $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class url_Core {
/**
* Fetches the current URI.
*
* @param boolean include the query string
* @return string
*/
public static function current($qs = FALSE)
{
return ($qs === TRUE) ? Router::$complete_uri : Router::$current_uri;
}
/**
* Base URL, with or without the index page.
*
* If protocol (and core.site_protocol) and core.site_domain are both empty,
* then
*
* @param boolean include the index page
* @param boolean non-default protocol
* @return string
*/
public static function base($index = FALSE, $protocol = FALSE)
{
if ($protocol == FALSE)
{
// Use the default configured protocol
$protocol = Kohana::config('core.site_protocol');
}
// Load the site domain
$site_domain = (string) Kohana::config('core.site_domain', TRUE);
if ($protocol == FALSE)
{
if ($site_domain === '' OR $site_domain[0] === '/')
{
// Use the configured site domain
$base_url = $site_domain;
}
else
{
// Guess the protocol to provide full http://domain/path URL
$base_url = ((empty($_SERVER['HTTPS']) OR $_SERVER['HTTPS'] === 'off') ? 'http' : 'https').'://'.$site_domain;
}
}
else
{
if ($site_domain === '' OR $site_domain[0] === '/')
{
// Guess the server name if the domain starts with slash
$base_url = $protocol.'://'.$_SERVER['HTTP_HOST'].$site_domain;
}
else
{
// Use the configured site domain
$base_url = $protocol.'://'.$site_domain;
}
}
if ($index === TRUE AND $index = Kohana::config('core.index_page'))
{
// Append the index page
$base_url = $base_url.$index;
}
// Force a slash on the end of the URL
return rtrim($base_url, '/').'/';
}
/**
* Fetches an absolute site URL based on a URI segment.
*
* @param string site URI to convert
* @param string non-default protocol
* @return string
*/
public static function site($uri = '', $protocol = FALSE)
{
if ($path = trim(parse_url($uri, PHP_URL_PATH), '/'))
{
// Add path suffix
$path .= Kohana::config('core.url_suffix');
}
if ($query = parse_url($uri, PHP_URL_QUERY))
{
// ?query=string
$query = '?'.$query;
}
if ($fragment = parse_url($uri, PHP_URL_FRAGMENT))
{
// #fragment
$fragment = '#'.$fragment;
}
// Concat the URL
return url::base(TRUE, $protocol).$path.$query.$fragment;
}
/**
* Return the URL to a file. Absolute filenames and relative filenames
* are allowed.
*
* @param string filename
* @param boolean include the index page
* @return string
*/
public static function file($file, $index = FALSE)
{
if (strpos($file, '://') === FALSE)
{
// Add the base URL to the filename
$file = url::base($index).$file;
}
return $file;
}
/**
* Merges an array of arguments with the current URI and query string to
* overload, instead of replace, the current query string.
*
* @param array associative array of arguments
* @return string
*/
public static function merge(array $arguments)
{
if ($_GET === $arguments)
{
$query = Router::$query_string;
}
elseif ($query = http_build_query(array_merge($_GET, $arguments)))
{
$query = '?'.$query;
}
// Return the current URI with the arguments merged into the query string
return Router::$current_uri.$query;
}
/**
* Convert a phrase to a URL-safe title.
*
* @param string phrase to convert
* @param string word separator (- or _)
* @return string
*/
public static function title($title, $separator = '-')
{
$separator = ($separator === '-') ? '-' : '_';
// Replace accented characters by their unaccented equivalents
$title = utf8::transliterate_to_ascii($title);
// Remove all characters that are not the separator, a-z, 0-9, or whitespace
$title = preg_replace('/[^'.$separator.'a-z0-9\s]+/', '', strtolower($title));
// Replace all separator characters and whitespace by a single separator
$title = preg_replace('/['.$separator.'\s]+/', $separator, $title);
// Trim separators from the beginning and end
return trim($title, $separator);
}
/**
* Sends a page redirect header and runs the system.redirect Event.
*
* @param mixed string site URI or URL to redirect to, or array of strings if method is 300
* @param string HTTP method of redirect
* @return void
*/
public static function redirect($uri = '', $method = '302')
{
if (Event::has_run('system.send_headers'))
{
return FALSE;
}
$codes = array
(
'refresh' => 'Refresh',
'300' => 'Multiple Choices',
'301' => 'Moved Permanently',
'302' => 'Found',
'303' => 'See Other',
'304' => 'Not Modified',
'305' => 'Use Proxy',
'307' => 'Temporary Redirect'
);
// Validate the method and default to 302
$method = isset($codes[$method]) ? (string) $method : '302';
if ($method === '300')
{
$uri = (array) $uri;
$output = '<ul>';
foreach ($uri as $link)
{
$output .= '<li>'.html::anchor($link).'</li>';
}
$output .= '</ul>';
// The first URI will be used for the Location header
$uri = $uri[0];
}
else
{
$output = '<p>'.html::anchor($uri).'</p>';
}
// Run the redirect event
Event::run('system.redirect', $uri);
if (strpos($uri, '://') === FALSE)
{
// HTTP headers expect absolute URLs
$uri = url::site($uri, request::protocol());
}
if ($method === 'refresh')
{
header('Refresh: 0; url='.$uri);
}
else
{
header('HTTP/1.1 '.$method.' '.$codes[$method]);
header('Location: '.$uri);
}
// We are about to exit, so run the send_headers event
Event::run('system.send_headers');
exit('<h1>'.$method.' - '.$codes[$method].'</h1>'.$output);
}
} // End url

View File

@@ -0,0 +1,330 @@
<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Validation helper class.
*
* $Id: valid.php 4367 2009-05-27 21:23:57Z samsoir $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class valid_Core {
/**
* Validate email, commonly used characters only
*
* @param string email address
* @return boolean
*/
public static function email($email)
{
return (bool) preg_match('/^[-_a-z0-9\'+*$^&%=~!?{}]++(?:\.[-_a-z0-9\'+*$^&%=~!?{}]+)*+@(?:(?![-.])[-a-z0-9.]+(?<![-.])\.[a-z]{2,6}|\d{1,3}(?:\.\d{1,3}){3})(?::\d++)?$/iD', (string) $email);
}
/**
* Validate the domain of an email address by checking if the domain has a
* valid MX record.
*
* @param string email address
* @return boolean
*/
public static function email_domain($email)
{
// If we can't prove the domain is invalid, consider it valid
// Note: checkdnsrr() is not implemented on Windows platforms
if ( ! function_exists('checkdnsrr'))
return TRUE;
// Check if the email domain has a valid MX record
return (bool) checkdnsrr(preg_replace('/^[^@]+@/', '', $email), 'MX');
}
/**
* Validate email, RFC compliant version
* Note: This function is LESS strict than valid_email. Choose carefully.
*
* @see Originally by Cal Henderson, modified to fit Kohana syntax standards:
* @see http://www.iamcal.com/publish/articles/php/parsing_email/
* @see http://www.w3.org/Protocols/rfc822/
*
* @param string email address
* @return boolean
*/
public static function email_rfc($email)
{
$qtext = '[^\\x0d\\x22\\x5c\\x80-\\xff]';
$dtext = '[^\\x0d\\x5b-\\x5d\\x80-\\xff]';
$atom = '[^\\x00-\\x20\\x22\\x28\\x29\\x2c\\x2e\\x3a-\\x3c\\x3e\\x40\\x5b-\\x5d\\x7f-\\xff]+';
$pair = '\\x5c[\\x00-\\x7f]';
$domain_literal = "\\x5b($dtext|$pair)*\\x5d";
$quoted_string = "\\x22($qtext|$pair)*\\x22";
$sub_domain = "($atom|$domain_literal)";
$word = "($atom|$quoted_string)";
$domain = "$sub_domain(\\x2e$sub_domain)*";
$local_part = "$word(\\x2e$word)*";
$addr_spec = "$local_part\\x40$domain";
return (bool) preg_match('/^'.$addr_spec.'$/D', (string) $email);
}
/**
* Validate URL
*
* @param string URL
* @return boolean
*/
public static function url($url)
{
return (bool) filter_var($url, FILTER_VALIDATE_URL, FILTER_FLAG_HOST_REQUIRED);
}
/**
* Validate IP
*
* @param string IP address
* @param boolean allow IPv6 addresses
* @param boolean allow private IP networks
* @return boolean
*/
public static function ip($ip, $ipv6 = FALSE, $allow_private = TRUE)
{
return (bool) preg_match('/(\d+).(\d+).(\d+).(\d+)/',$ip);
}
/**
* Validates a credit card number using the Luhn (mod10) formula.
* @see http://en.wikipedia.org/wiki/Luhn_algorithm
*
* @param integer credit card number
* @param string|array card type, or an array of card types
* @return boolean
*/
public static function credit_card($number, $type = NULL)
{
// Remove all non-digit characters from the number
if (($number = preg_replace('/\D+/', '', $number)) === '')
return FALSE;
if ($type == NULL)
{
// Use the default type
$type = 'default';
}
elseif (is_array($type))
{
foreach ($type as $t)
{
// Test each type for validity
if (valid::credit_card($number, $t))
return TRUE;
}
return FALSE;
}
$cards = Kohana::config('credit_cards');
// Check card type
$type = strtolower($type);
if ( ! isset($cards[$type]))
return FALSE;
// Check card number length
$length = strlen($number);
// Validate the card length by the card type
if ( ! in_array($length, preg_split('/\D+/', $cards[$type]['length'])))
return FALSE;
// Check card number prefix
if ( ! preg_match('/^'.$cards[$type]['prefix'].'/', $number))
return FALSE;
// No Luhn check required
if ($cards[$type]['luhn'] == FALSE)
return TRUE;
// Checksum of the card number
$checksum = 0;
for ($i = $length - 1; $i >= 0; $i -= 2)
{
// Add up every 2nd digit, starting from the right
$checksum += $number[$i];
}
for ($i = $length - 2; $i >= 0; $i -= 2)
{
// Add up every 2nd digit doubled, starting from the right
$double = $number[$i] * 2;
// Subtract 9 from the double where value is greater than 10
$checksum += ($double >= 10) ? $double - 9 : $double;
}
// If the checksum is a multiple of 10, the number is valid
return ($checksum % 10 === 0);
}
/**
* Checks if a phone number is valid.
*
* @param string phone number to check
* @return boolean
*/
public static function phone($number, $lengths = NULL)
{
if ( ! is_array($lengths))
{
$lengths = array(7,10,11);
}
// Remove all non-digit characters from the number
$number = preg_replace('/\D+/', '', $number);
// Check if the number is within range
return in_array(strlen($number), $lengths);
}
/**
* Tests if a string is a valid date string.
*
* @param string date to check
* @return boolean
*/
public static function date($str)
{
return (strtotime($str) !== FALSE);
}
/**
* Checks whether a string consists of alphabetical characters only.
*
* @param string input string
* @param boolean trigger UTF-8 compatibility
* @return boolean
*/
public static function alpha($str, $utf8 = FALSE)
{
return ($utf8 === TRUE)
? (bool) preg_match('/^\pL++$/uD', (string) $str)
: ctype_alpha((string) $str);
}
/**
* Checks whether a string consists of alphabetical characters and numbers only.
*
* @param string input string
* @param boolean trigger UTF-8 compatibility
* @return boolean
*/
public static function alpha_numeric($str, $utf8 = FALSE)
{
return ($utf8 === TRUE)
? (bool) preg_match('/^[\pL\pN]++$/uD', (string) $str)
: ctype_alnum((string) $str);
}
/**
* Checks whether a string consists of alphabetical characters, numbers, underscores and dashes only.
*
* @param string input string
* @param boolean trigger UTF-8 compatibility
* @return boolean
*/
public static function alpha_dash($str, $utf8 = FALSE)
{
return ($utf8 === TRUE)
? (bool) preg_match('/^[-\pL\pN_]++$/uD', (string) $str)
: (bool) preg_match('/^[-a-z0-9_]++$/iD', (string) $str);
}
/**
* Checks whether a string consists of digits only (no dots or dashes).
*
* @param string input string
* @param boolean trigger UTF-8 compatibility
* @return boolean
*/
public static function digit($str, $utf8 = FALSE)
{
return ($utf8 === TRUE)
? (bool) preg_match('/^\pN++$/uD', (string) $str)
: ctype_digit((string) $str);
}
/**
* Checks whether a string is a valid number (negative and decimal numbers allowed).
*
* @see Uses locale conversion to allow decimal point to be locale specific.
* @see http://www.php.net/manual/en/function.localeconv.php
*
* @param string input string
* @return boolean
*/
public static function numeric($str)
{
// Use localeconv to set the decimal_point value: Usually a comma or period.
$locale = localeconv();
return (bool) preg_match('/^-?[0-9'.$locale['decimal_point'].']++$/D', (string) $str);
}
/**
* Checks whether a string is a valid text. Letters, numbers, whitespace,
* dashes, periods, and underscores are allowed.
*
* @param string text to check
* @return boolean
*/
public static function standard_text($str)
{
// pL matches letters
// pN matches numbers
// pZ matches whitespace
// pPc matches underscores
// pPd matches dashes
// pPo matches normal puncuation
return (bool) preg_match('/^[\pL\pN\pZ\p{Pc}\p{Pd}\p{Po}]++$/uD', (string) $str);
}
/**
* Checks if a string is a proper decimal format. The format array can be
* used to specify a decimal length, or a number and decimal length, eg:
* array(2) would force the number to have 2 decimal places, array(4,2)
* would force the number to have 4 digits and 2 decimal places.
*
* @param string input string
* @param array decimal format: y or x,y
* @return boolean
*/
public static function decimal($str, $format = NULL)
{
// Create the pattern
$pattern = '/^[0-9]%s\.[0-9]%s$/';
if ( ! empty($format))
{
if (count($format) > 1)
{
// Use the format for number and decimal length
$pattern = sprintf($pattern, '{'.$format[0].'}', '{'.$format[1].'}');
}
elseif (count($format) > 0)
{
// Use the format as decimal length
$pattern = sprintf($pattern, '+', '{'.$format[0].'}');
}
}
else
{
// No format
$pattern = sprintf($pattern, '+', '+');
}
return (bool) preg_match($pattern, (string) $str);
}
} // End valid