278 lines
8 KiB
PHP
278 lines
8 KiB
PHP
<?php
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/*
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* A set of utility helper functions
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*/
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use Sakura\Config;
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use Sakura\Net;
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function clean_string($string, $lower = false, $noSpecial = false, $replaceSpecial = '')
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{
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// Run common sanitisation function over string
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$string = htmlentities($string, ENT_NOQUOTES | ENT_HTML401, Config::get('charset'));
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$string = stripslashes($string);
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$string = strip_tags($string);
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// If set also make the string lowercase
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if ($lower) {
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$string = strtolower($string);
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}
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// If set remove all characters that aren't a-z or 0-9
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if ($noSpecial) {
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$string = preg_replace('/[^a-z0-9]/', $replaceSpecial, $string);
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}
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// Return clean string
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return $string;
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}
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function check_mx_record($email)
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{
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// Get the domain from the e-mail address
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$domain = substr(strstr($email, '@'), 1);
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// Check the MX record
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$record = checkdnsrr($domain, 'MX');
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// Return the record data
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return $record;
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}
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function get_country_code()
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{
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// Attempt to get country code using PHP's built in geo thing
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if (function_exists("geoip_country_code_by_name")) {
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try {
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$code = geoip_country_code_by_name(Net::ip());
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// Check if $code is anything
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if ($code) {
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return $code;
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}
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} catch (\Exception $e) {
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}
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}
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// Check if the required header is set and return it
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if (isset($_SERVER['HTTP_CF_IPCOUNTRY'])) {
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return $_SERVER['HTTP_CF_IPCOUNTRY'];
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}
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// Return XX as a fallback
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return 'XX';
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}
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function get_country_name($code)
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{
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// Catch XX
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if (strtolower($code) === 'xx') {
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return 'Unknown';
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}
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// Catch proxy
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if (strtolower($code) === 'a1') {
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return 'Anonymous Proxy';
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}
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return locale_get_display_region("-{$code}", 'en');
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}
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function password_entropy($password)
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{
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// Decode utf-8 chars
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$password = utf8_decode($password);
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// Count the amount of unique characters in the password string and calculate the entropy
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return count(count_chars($password, 1)) * log(256, 2);
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}
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function byte_symbol($bytes)
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{
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// Return nothing if the input was 0
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if (!$bytes) {
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return "0 B";
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}
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// Array with byte symbols
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$symbols = ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'];
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// Calculate byte entity
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$exp = floor(log($bytes) / log(1024));
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// Format the things
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$bytes = sprintf("%.2f " . $symbols[$exp], ($bytes / pow(1024, floor($exp))));
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// Return the formatted string
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return $bytes;
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}
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function send_mail($to, $subject, $body)
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{
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// Initialise PHPMailer
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$mail = new PHPMailer;
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// Set to SMTP
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$mail->isSMTP();
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// Set the SMTP server host
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$mail->Host = Config::get('smtp_server');
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// Do we require authentication?
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$mail->SMTPAuth = Config::get('smtp_auth');
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// Do we encrypt as well?
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$mail->SMTPSecure = Config::get('smtp_secure');
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// Set the port to the SMTP server
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$mail->Port = Config::get('smtp_port');
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// If authentication is required log in as well
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if (Config::get('smtp_auth')) {
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$mail->Username = Config::get('smtp_username');
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$mail->Password = base64_decode(Config::get('smtp_password'));
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}
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// Add a reply-to header
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$mail->addReplyTo(Config::get('smtp_replyto_mail'), Config::get('smtp_replyto_name'));
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// Set a from address as well
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$mail->setFrom(Config::get('smtp_from_email'), Config::get('smtp_from_name'));
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// Set the addressee
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foreach ($to as $email => $name) {
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$mail->addBCC($email, $name);
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}
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// Subject line
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$mail->Subject = $subject;
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// Set body
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$mail->Body = $body;
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// Send the message
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$send = $mail->send();
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// Clear the addressee list
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$mail->clearAddresses();
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// If we got an error return the error
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if (!$send) {
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return $mail->ErrorInfo;
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}
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// Else just return whatever
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return $send;
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}
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function error_handler($errno, $errstr, $errfile, $errline)
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{
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// Remove ROOT path from the error string and file location
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$errstr = str_replace(ROOT, '', $errstr);
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$errfile = str_replace(ROOT, '', $errfile);
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switch ($errno) {
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case E_ERROR:
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case E_USER_ERROR:
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$error = '<b>FATAL ERROR</b>: ' . $errstr . ' on line ' . $errline . ' in ' . $errfile;
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break;
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case E_WARNING:
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case E_USER_WARNING:
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$error = '<b>WARNING</b>: ' . $errstr . ' on line ' . $errline . ' in ' . $errfile;
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break;
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case E_NOTICE:
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case E_USER_NOTICE:
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$error = '<b>NOTICE</b>: ' . $errstr . ' on line ' . $errline . ' in ' . $errfile;
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break;
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default:
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$error = '<b>Unknown error type</b> [' . $errno . ']: ' . $errstr . ' on line ' . $errline
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. ' in ' . $errfile;
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}
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// Truncate all previous outputs
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ob_clean();
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ob_end_clean();
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// Check for dev mode
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$detailed = Config::local('dev', 'show_errors');
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// Build page
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$errorPage = '<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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<title>Sakura Internal Error</title>
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<style type="text/css">
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body { margin: 0; padding: 0; background: #EEE; color: #000;
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font: 12px/20px Verdana, Arial, Helvetica, sans-serif; }
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h1, h2 { font-weight: 100; background: #CAA; padding: 8px 5px 10px;
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margin: 0; font-style: italic; font-family: serif; }
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h1 { border-radius: 8px 8px 0 0; }
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h2 { margin: 0 -10px; }
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.container { border: 1px solid #CAA; margin: 10px auto; background: #FFF;
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box-shadow: 2px 2px 1em #888; max-width: 1024px; border-radius: 10px; }
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.container .inner { padding: 0 10px; }
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.container .inner .error { background: #555; color: #EEE; border-left: 5px solid #C22;
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padding: 4px 6px; text-shadow: 0 1px 1px #888; white-space: pre-wrap;
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word-wrap: break-word; margin: 12px 0; border-radius: 5px; box-shadow: inset 0 0 1em #333; }
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.container .footer { border-top: 1px solid #CAA; font-size: x-small; padding: 0 5px 1px; }
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a { color: #77E; text-decoration: none; }
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a:hover { text-decoration: underline; }
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a:active { color: #E77; }
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</style>
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</head>
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<body>
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<div class="container">
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<h1>An error occurred while executing the script.</h1>
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<div class="inner">
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<p>To prevent potential security risks or data loss Sakura has stopped execution of the script.</p>';
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if (isset($errid)) {
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$errorPage .= '<p>The error and surrounding data has been logged.</p>
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<h2>' . (!$detailed ? 'Report the following text to a staff member' : 'Logged as') . '</h2>
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<pre class="error">' . $errid . '</pre>';
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} else {
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$errorPage .= '<p>Sakura was not able to log this error which could mean that there was an error
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with the database connection. If you\'re the system administrator check the database credentials
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and make sure the server is running and if you\'re not please let the system administrator
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know about this error if it occurs again.</p>';
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}
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if ($detailed) {
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$errorPage .= ' <h2>Summary</h2>
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<pre class="error">' . $error . '</pre>
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<h2>Backtraces</h2>';
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foreach (debug_backtrace() as $num => $trace) {
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$errorPage .= '<h3>#' . $num . '</h3><pre class="error">';
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foreach ($trace as $key => $val) {
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$errorPage .=
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str_pad(
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'[' . $key . ']',
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12
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) . '=> ' . (
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is_array($val) || is_object($val) ?
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json_encode($val) :
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$val
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) . "\r\n";
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}
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$errorPage .= '</pre>';
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}
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}
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$errorPage .= '</div>
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<div class="footer">
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Sakura r' . SAKURA_VERSION . '.
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</div>
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</div>
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</body>
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</html>';
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// Die and display error message
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die($errorPage);
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}
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