Add class MD_STD_IN for input parsing and sanitization
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MD_STD.php
34
MD_STD.php
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@ -20,13 +20,13 @@ class MD_STD {
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*/
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public static function file_get_contents(string $filename):string {
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if (substr($filename, 0, 4) !== 'http' && !file_exists($filename)) {
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if (\substr($filename, 0, 4) !== 'http' && !\file_exists($filename)) {
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throw new MDFileDoesNotExist("There is no file {$filename}");
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}
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$contents = file_get_contents($filename);
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$contents = \file_get_contents($filename);
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if (is_bool($contents)) {
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if (\is_bool($contents)) {
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throw new MDFileIsNotReadable("File {$filename} is not readable");
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}
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@ -44,8 +44,8 @@ class MD_STD {
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*/
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public static function realpath(string $path):string {
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$output = realpath($path);
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if (!is_string($output)) throw new MDFileDoesNotExist("The file {$path} does not exist or is not readable.");
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$output = \realpath($path);
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if (!\is_string($output)) throw new MDFileDoesNotExist("The file {$path} does not exist or is not readable.");
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return $output;
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}
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@ -59,11 +59,11 @@ class MD_STD {
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*/
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public static function scandir(string $filepath):array {
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if (!is_dir($filepath) || ($output = scandir($filepath)) === false) {
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if (!\is_dir($filepath) || ($output = \scandir($filepath)) === false) {
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throw new MDFileDoesNotExist("There is no file {$filepath}");
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}
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return array_values(array_diff($output, ['.', '..', '.git']));
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return \array_values(\array_diff($output, ['.', '..', '.git']));
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}
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@ -75,7 +75,7 @@ class MD_STD {
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*/
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public static function ob_get_clean():string {
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$output = ob_get_clean();
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$output = \ob_get_clean();
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if ($output === false) throw new MDOutputBufferNotStarted("Output buffer was not started");
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return $output;
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@ -126,7 +126,7 @@ class MD_STD {
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*/
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public static function preg_replace_str(string $pattern, string $replacement, string $subject):string {
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$output = preg_replace($pattern, $replacement, $subject);
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$output = \preg_replace($pattern, $replacement, $subject);
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if ($output === null) {
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throw new Exception("Error replacing in $subject: Replacing $pattern with $replacement");
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}
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@ -148,7 +148,7 @@ class MD_STD {
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*/
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public static function json_encode(array $value, int $options = 0, int $depth = 512):string {
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$output = json_encode($value, $options, $depth);
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$output = \json_encode($value, $options, $depth);
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if ($output === false) throw new Exception("JSON output could not be generated");
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return $output;
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@ -233,7 +233,7 @@ class MD_STD {
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// Alle Infos über diese Sprache rausholen
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// phpcs:disable Generic.Strings.UnnecessaryStringConcat
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$res = preg_match('/^([a-z]{1,8}(?:-[a-z]{1,8})*)(?:;\s*q=(0(?:\.[0-9]{1,3})?|1(?:\.0{1,3})?))?$/i', $accepted_language, $matches);
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$res = \preg_match('/^([a-z]{1,8}(?:-[a-z]{1,8})*)(?:;\s*q=(0(?:\.[0-9]{1,3})?|1(?:\.0{1,3})?))?$/i', $accepted_language, $matches);
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// phpcs:enable
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// war die Syntax gültig?
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@ -243,7 +243,7 @@ class MD_STD {
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}
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// Sprachcode holen und dann sofort in die Einzelteile trennen
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$lang_code = explode('-', $matches[1]);
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$lang_code = \explode('-', $matches[1]);
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// Wurde eine Qualität mitgegeben?
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if (isset($matches[2])) {
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@ -259,11 +259,11 @@ class MD_STD {
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while (!empty($lang_code)) {
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// phpcs:enable
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// mal sehen, ob der Sprachcode angeboten wird
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if (in_array(strtolower(join('-', $lang_code)), $allowed_languages)) {
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if (\in_array(\strtolower(\join('-', $lang_code)), $allowed_languages)) {
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// Qualität anschauen
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if ($lang_quality > $current_q) {
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// diese Sprache verwenden
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$current_lang = strtolower(join('-', $lang_code));
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$current_lang = \strtolower(join('-', $lang_code));
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$current_q = $lang_quality;
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// Hier die innere while-Schleife verlassen
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break;
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@ -275,7 +275,7 @@ class MD_STD {
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break;
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}
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// den rechtesten Teil des Sprachcodes abschneiden
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array_pop($lang_code);
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\array_pop($lang_code);
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}
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}
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@ -296,8 +296,8 @@ class MD_STD {
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public static function human_filesize(int $bytes, int $decimals = 2):string {
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$size = ['B','kB','MB','GB','TB','PB','EB','ZB','YB'];
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$factor = floor((strlen((string)$bytes) - 1) / 3);
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return sprintf("%.{$decimals}f", $bytes / pow(1024, $factor)) . $size[$factor];
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$factor = \floor((\strlen((string)$bytes) - 1) / 3);
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return \sprintf("%.{$decimals}f", $bytes / \pow(1024, $factor)) . $size[$factor];
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}
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95
MD_STD_IN.php
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95
MD_STD_IN.php
Normal file
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@ -0,0 +1,95 @@
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<?PHP
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/**
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* Gathers wrappers for handling inputs.
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*/
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declare(strict_types = 1);
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/**
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* Standard class providing overrides of default PHP functions as static
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* functions.
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*/
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class MD_STD_IN {
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/**
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* Generic sanitization function for input strings.
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*
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* @param mixed $input Input string.
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*
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* @return integer
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*/
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final public static function sanitize_id($input):int {
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$input = filter_var($input, FILTER_VALIDATE_INT, [
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'options' => [
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'min_range' => 1, // Minimum number of an ID generated.
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'max_range' => 4294967295 // Max value for MySQL's int data type
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],
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]
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);
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if (!($input)) {
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throw new MDpageParameterNotNumericException("Value is not numeric.");
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}
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return $input;
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}
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/**
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* General string sanitization for all purposes. For use of inputs with MySQL's
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* MATCH AGAINST, use the dedicated sanitization function.
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*
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* @param mixed $input Input string.
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*
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* @return string
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*/
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final public static function sanitize_text($input):string {
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$output = \filter_var($input,
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FILTER_SANITIZE_STRING,
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FILTER_FLAG_NO_ENCODE_QUOTES) ?: "";
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return trim($output);
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}
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/**
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* Retrieves HTTP input texts from GET or POST variables, whatever is provided.
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* If neither is given, returns a provided default.
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*
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* @param string $var_name Variable name.
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* @param string $default Default value for the output.
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*
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* @return string
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*/
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final public static function get_http_input_text(string $var_name, string $default = ""):string {
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if (isset($_GET[$var_name])) {
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return self::sanitize_text($_GET[$var_name]);
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}
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else if (isset($_POST[$var_name])) {
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return self::sanitize_text($_POST[$var_name]);
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}
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else return self::sanitize_text($default);
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}
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/**
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* Retrieves HTTP input texts from POST variables.
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* If none is given, returns a provided default.
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*
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* @param string $var_name Variable name.
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* @param string $default Default value for the output.
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*
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* @return string
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*/
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final public static function get_http_post_text(string $var_name, string $default = ""):string {
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if (isset($_POST[$var_name])) {
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return self::sanitize_text($_POST[$var_name]);
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}
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else return self::sanitize_text($default);
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}
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}
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