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sakura/utility.php

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<?php
/*
* A set of utility helper functions
*/
use Sakura\Config;
use Sakura\FileSystem;
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use Sakura\Net;
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use Sakura\Router;
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use Sakura\Template;
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// Sort of alias for Config::get
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function config($value)
{
$split = explode('.', $value);
$key = array_pop($split);
$section = implode('.', $split);
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return Config::get($section, $key) ?? Config::get($value) ?? null;
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}
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// Alias for Router::route
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function route($name, $args = null, $full = false)
{
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return ($full ? full_domain() : '') . Router::route($name, $args);
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}
// Getting the full domain (+protocol) of the current host, only works for http
function full_domain()
{
return 'http' . ($_SERVER['HTTPS'] ?? false ? 's' : '') . '://' . $_SERVER['HTTP_HOST'];
}
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// Checking if a parameter is equal to session_id()
function session_check($param = 'session')
{
return isset($_REQUEST[$param]) && $_REQUEST[$param] === session_id();
}
// Alias for Template::vars and Template::render
function view($name, $vars = [])
{
Template::vars($vars);
return Template::render($name);
}
// Get a path
function path($path)
{
return FileSystem::getPath($path);
}
// Convert camel case to snake case
function camel_to_snake($text)
{
return ltrim(strtolower(preg_replace('#[A-Z]#', '_$0', $text)), '_');
}
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function clean_string($string, $lower = false, $noSpecial = false, $replaceSpecial = '')
{
// Run common sanitisation function over string
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$string = htmlentities($string, ENT_NOQUOTES | ENT_HTML401, 'utf-8');
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$string = stripslashes($string);
$string = strip_tags($string);
// If set also make the string lowercase
if ($lower) {
$string = strtolower($string);
}
// If set remove all characters that aren't a-z or 0-9
if ($noSpecial) {
$string = preg_replace('/[^a-z0-9]/', $replaceSpecial, $string);
}
// Return clean string
return $string;
}
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// Redirect with turbolinks header
function redirect($url)
{
header("Turbolinks-Location: {$url}");
header("Location: {$url}");
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return $url;
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}
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function check_mx_record($email)
{
// Get the domain from the e-mail address
$domain = substr(strstr($email, '@'), 1);
// Check the MX record
$record = checkdnsrr($domain, 'MX');
// Return the record data
return $record;
}
function get_country_code()
{
// Attempt to get country code using PHP's built in geo thing
if (function_exists("geoip_country_code_by_name")) {
try {
$code = geoip_country_code_by_name(Net::ip());
// Check if $code is anything
if ($code) {
return $code;
}
} catch (\Exception $e) {
}
}
// Check if the required header is set and return it
if (isset($_SERVER['HTTP_CF_IPCOUNTRY']) && strlen($_SERVER['HTTP_CF_IPCOUNTRY']) === 2) {
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return $_SERVER['HTTP_CF_IPCOUNTRY'];
}
// Return XX as a fallback
return 'XX';
}
function get_country_name($code)
{
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switch (strtolower($code)) {
case "xx":
return "Unknown";
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case "a1":
return "Anonymous Proxy";
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case "a2":
return "Satellite Provider";
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default:
return locale_get_display_region("-{$code}", 'en');
}
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}
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// Count the amount of unique characters in the password string and calculate the entropy
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function password_entropy($password)
{
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return count(count_chars(utf8_decode($password), 1)) * log(256, 2);
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}
function byte_symbol($bytes)
{
// Return nothing if the input was 0
if (!$bytes) {
return "0 B";
}
// Array with byte symbols
$symbols = ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'];
// Calculate byte entity
$exp = floor(log($bytes) / log(1024));
// Format the things
$bytes = sprintf("%.2f " . $symbols[$exp], ($bytes / pow(1024, floor($exp))));
// Return the formatted string
return $bytes;
}
// turn this function into a wrapped class!
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function send_mail($to, $subject, $body)
{
$transport = Swift_SmtpTransport::newInstance()
->setHost(config('mail.smtp.server'))
->setPort(config('mail.smtp.port'));
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if (config('mail.smtp.secure')) {
$transport->setEncryption(config('mail.smtp.secure'));
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}
if (config('mail.smtp.auth')) {
$transport
->setUsername(config('mail.smtp.username'))
->setPassword(config('mail.smtp.password'));
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}
$mailer = Swift_Mailer::newInstance($transport);
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$message = Swift_Message::newInstance($subject)
->setFrom([config('mail.smtp.from') => config('mail.smtp.name')])
->setBcc($to)
->setBody($body);
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return $mailer->send($message);
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}