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Utils
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Editing: Validators.php
<?php /** * This file is part of the Nette Framework (https://nette.org) * Copyright (c) 2004 David Grudl (https://davidgrudl.com) */ declare(strict_types=1); namespace Nette\Utils; use Nette; /** * Validation utilities. */ class Validators { use Nette\StaticClass; private const BuiltinTypes = [ 'string' => 1, 'int' => 1, 'float' => 1, 'bool' => 1, 'array' => 1, 'object' => 1, 'callable' => 1, 'iterable' => 1, 'void' => 1, 'null' => 1, 'mixed' => 1, 'false' => 1, 'never' => 1, 'true' => 1, ]; /** @var array<string,?callable> */ protected static $validators = [ // PHP types 'array' => 'is_array', 'bool' => 'is_bool', 'boolean' => 'is_bool', 'float' => 'is_float', 'int' => 'is_int', 'integer' => 'is_int', 'null' => 'is_null', 'object' => 'is_object', 'resource' => 'is_resource', 'scalar' => 'is_scalar', 'string' => 'is_string', // pseudo-types 'callable' => [self::class, 'isCallable'], 'iterable' => 'is_iterable', 'list' => [Arrays::class, 'isList'], 'mixed' => [self::class, 'isMixed'], 'none' => [self::class, 'isNone'], 'number' => [self::class, 'isNumber'], 'numeric' => [self::class, 'isNumeric'], 'numericint' => [self::class, 'isNumericInt'], // string patterns 'alnum' => 'ctype_alnum', 'alpha' => 'ctype_alpha', 'digit' => 'ctype_digit', 'lower' => 'ctype_lower', 'pattern' => null, 'space' => 'ctype_space', 'unicode' => [self::class, 'isUnicode'], 'upper' => 'ctype_upper', 'xdigit' => 'ctype_xdigit', // syntax validation 'email' => [self::class, 'isEmail'], 'identifier' => [self::class, 'isPhpIdentifier'], 'uri' => [self::class, 'isUri'], 'url' => [self::class, 'isUrl'], // environment validation 'class' => 'class_exists', 'interface' => 'interface_exists', 'directory' => 'is_dir', 'file' => 'is_file', 'type' => [self::class, 'isType'], ]; /** @var array<string,callable> */ protected static $counters = [ 'string' => 'strlen', 'unicode' => [Strings::class, 'length'], 'array' => 'count', 'list' => 'count', 'alnum' => 'strlen', 'alpha' => 'strlen', 'digit' => 'strlen', 'lower' => 'strlen', 'space' => 'strlen', 'upper' => 'strlen', 'xdigit' => 'strlen', ]; /** * Verifies that the value is of expected types separated by pipe. * @throws AssertionException */ public static function assert(mixed $value, string $expected, string $label = 'variable'): void { if (!static::is($value, $expected)) { $expected = str_replace(['|', ':'], [' or ', ' in range '], $expected); $translate = ['boolean' => 'bool', 'integer' => 'int', 'double' => 'float', 'NULL' => 'null']; $type = $translate[gettype($value)] ?? gettype($value); if (is_int($value) || is_float($value) || (is_string($value) && strlen($value) < 40)) { $type .= ' ' . var_export($value, true); } elseif (is_object($value)) { $type .= ' ' . $value::class; } throw new AssertionException("The $label expects to be $expected, $type given."); } } /** * Verifies that element $key in array is of expected types separated by pipe. * @param mixed[] $array * @throws AssertionException */ public static function assertField( array $array, $key, ?string $expected = null, string $label = "item '%' in array", ): void { if (!array_key_exists($key, $array)) { throw new AssertionException('Missing ' . str_replace('%', $key, $label) . '.'); } elseif ($expected) { static::assert($array[$key], $expected, str_replace('%', $key, $label)); } } /** * Verifies that the value is of expected types separated by pipe. */ public static function is(mixed $value, string $expected): bool { foreach (explode('|', $expected) as $item) { if (str_ends_with($item, '[]')) { if (is_iterable($value) && self::everyIs($value, substr($item, 0, -2))) { return true; } continue; } elseif (str_starts_with($item, '?')) { $item = substr($item, 1); if ($value === null) { return true; } } [$type] = $item = explode(':', $item, 2); if (isset(static::$validators[$type])) { try { if (!static::$validators[$type]($value)) { continue; } } catch (\TypeError $e) { continue; } } elseif ($type === 'pattern') { if (Strings::match($value, '|^' . ($item[1] ?? '') . '$|D')) { return true; } continue; } elseif (!$value instanceof $type) { continue; } if (isset($item[1])) { $length = $value; if (isset(static::$counters[$type])) { $length = static::$counters[$type]($value); } $range = explode('..', $item[1]); if (!isset($range[1])) { $range[1] = $range[0]; } if (($range[0] !== '' && $length < $range[0]) || ($range[1] !== '' && $length > $range[1])) { continue; } } return true; } return false; } /** * Finds whether all values are of expected types separated by pipe. * @param mixed[] $values */ public static function everyIs(iterable $values, string $expected): bool { foreach ($values as $value) { if (!static::is($value, $expected)) { return false; } } return true; } /** * Checks if the value is an integer or a float. * @return ($value is int|float ? true : false) */ public static function isNumber(mixed $value): bool { return is_int($value) || is_float($value); } /** * Checks if the value is an integer or a integer written in a string. * @return ($value is non-empty-string ? bool : ($value is int ? true : false)) */ public static function isNumericInt(mixed $value): bool { return is_int($value) || (is_string($value) && preg_match('#^[+-]?[0-9]+$#D', $value)); } /** * Checks if the value is a number or a number written in a string. * @return ($value is non-empty-string ? bool : ($value is int|float ? true : false)) */ public static function isNumeric(mixed $value): bool { return is_float($value) || is_int($value) || (is_string($value) && preg_match('#^[+-]?([0-9]++\.?[0-9]*|\.[0-9]+)$#D', $value)); } /** * Checks if the value is a syntactically correct callback. */ public static function isCallable(mixed $value): bool { return $value && is_callable($value, true); } /** * Checks if the value is a valid UTF-8 string. */ public static function isUnicode(mixed $value): bool { return is_string($value) && preg_match('##u', $value); } /** * Checks if the value is 0, '', false or null. * @return ($value is 0|''|false|null ? true : false) */ public static function isNone(mixed $value): bool { return $value == null; // intentionally == } /** @internal */ public static function isMixed(): bool { return true; } /** * Checks if a variable is a zero-based integer indexed array. * @deprecated use Nette\Utils\Arrays::isList * @return ($value is list ? true : false) */ public static function isList(mixed $value): bool { return Arrays::isList($value); } /** * Checks if the value is in the given range [min, max], where the upper or lower limit can be omitted (null). * Numbers, strings and DateTime objects can be compared. */ public static function isInRange(mixed $value, array $range): bool { if ($value === null || !(isset($range[0]) || isset($range[1]))) { return false; } $limit = $range[0] ?? $range[1]; if (is_string($limit)) { $value = (string) $value; } elseif ($limit instanceof \DateTimeInterface) { if (!$value instanceof \DateTimeInterface) { return false; } } elseif (is_numeric($value)) { $value *= 1; } else { return false; } return (!isset($range[0]) || ($value >= $range[0])) && (!isset($range[1]) || ($value <= $range[1])); } /** * Checks if the value is a valid email address. It does not verify that the domain actually exists, only the syntax is verified. */ public static function isEmail(string $value): bool { $atom = "[-a-z0-9!#$%&'*+/=?^_`{|}~]"; // RFC 5322 unquoted characters in local-part $alpha = "a-z\x80-\xFF"; // superset of IDN return (bool) preg_match(<<<XX (^(?n) ("([ !#-[\\]-~]*|\\\\[ -~])+"|$atom+(\\.$atom+)*) # quoted or unquoted @ ([0-9$alpha]([-0-9$alpha]{0,61}[0-9$alpha])?\\.)+ # domain - RFC 1034 [$alpha]([-0-9$alpha]{0,17}[$alpha])? # top domain $)Dix XX, $value); } /** * Checks if the value is a valid URL address. */ public static function isUrl(string $value): bool { $alpha = "a-z\x80-\xFF"; return (bool) preg_match(<<<XX (^(?n) https?://( (([-_0-9$alpha]+\\.)* # subdomain [0-9$alpha]([-0-9$alpha]{0,61}[0-9$alpha])?\\.)? # domain [$alpha]([-0-9$alpha]{0,17}[$alpha])? # top domain |\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3} # IPv4 |\\[[0-9a-f:]{3,39}\\] # IPv6 )(:\\d{1,5})? # port (/\\S*)? # path (\\?\\S*)? # query (\\#\\S*)? # fragment $)Dix XX, $value); } /** * Checks if the value is a valid URI address, that is, actually a string beginning with a syntactically valid schema. */ public static function isUri(string $value): bool { return (bool) preg_match('#^[a-z\d+\.-]+:\S+$#Di', $value); } /** * Checks whether the input is a class, interface or trait. * @deprecated */ public static function isType(string $type): bool { return class_exists($type) || interface_exists($type) || trait_exists($type); } /** * Checks whether the input is a valid PHP identifier. */ public static function isPhpIdentifier(string $value): bool { return preg_match('#^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$#D', $value) === 1; } /** * Determines if type is PHP built-in type. Otherwise, it is the class name. */ public static function isBuiltinType(string $type): bool { return isset(self::BuiltinTypes[strtolower($type)]); } /** * Determines if type is special class name self/parent/static. */ public static function isClassKeyword(string $name): bool { return (bool) preg_match('#^(self|parent|static)$#Di', $name); } /** * Checks whether the given type declaration is syntactically valid. */ public static function isTypeDeclaration(string $type): bool { return (bool) preg_match(<<<'XX' ~((?n) \?? (?<type> \\? (?<name> [a-zA-Z_\x7f-\xff][\w\x7f-\xff]*) (\\ (?&name))* ) | (?<intersection> (?&type) (& (?&type))+ ) | (?<upart> (?&type) | \( (?&intersection) \) ) (\| (?&upart))+ )$~xAD XX, $type); } }
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