<?php
class Validator {
const IMG = 'jpg, jepg, png, gif, bmp'; const IMG_MIMETYPE = 'image/jpeg,image/jpeg,image/png,image/gif,image/bmp';
private $defaults = array(
'required' => ':attribute 必须填写',
'integer' => ':attribute必须是整数',
'int' => ':attribute必须是整数',
'numeric' => ':attribute必须是数字',
'string' => ':attribute必须是字符串',
'json' => ':attribute 必须是json',
'array' => ':attribute必须是数组',
'min' => ':attribute不能小于%s',
'max' => ':attribute不能大于%s',
'between' => ':attribute 必须在 %s %s 范围内',
'size' => ':attribute 大小必须是 %s',
'url' => ':attribute不是有效的url', 'email' => ':attribute不是有效的邮箱',
'mobile' => ':attribute不是有效的手机号',
'file' => ':attribute必须是一个文件',
'image' => ':attribute必须是一个图片',
'ip' => ':attribute不是有效的ip',
'in' => ':attribute 必须在 %s 内',
'notin' => ':attribute 不在 %s 内',
'date' => ':attribute 必须是有效的日期',
'after' => ':attribute 日期不能小于 %s',
'before' => ':attribute 日期不能大于 %s',
'regex' => ':attribute 不是有效的数据', 'same' => ':attribute 和 %s 不一致', 'bool' => ':attribute 必须是bool值',
'path' => ':attribute 不是有效的路径'
);
private $custom = array();
private $rules = array();
private $messages = array();
private $data = array();
private $errors = array();
public function __construct($data, $rules = array(), $messages = array()) {
$this->data = $data;
$this->rules = $this->parseRule($rules);
$this->messages = $messages;
}
public static function create($data, $rules, array $messages = array()) {
return new self($data, $rules, $messages);
}
public function addRule($name, callable $callable) {
if (!$name) {
throw new InvalidArgumentException('无效的参数');
}
if (!is_callable($callable)) {
throw new InvalidArgumentException('无效的callable 对象');
}
$this->custom[$name] = $callable;
}
public function isError() {
return count($this->errors) !== 0;
}
public function error() {
return $this->errors;
}
public function message() {
$init = array();
$errmsg = array_reduce($this->error(), function($result, $value){
return array_merge($result, array_values($value));
}, $init);
return implode(',' , array_values($errmsg));
}
public function getData() {
return $this->data;
}
protected function parseRule(array $rules) {
$result = array();
if (count($rules) == 0) {
throw new InvalidArgumentException('无效的rules');
}
foreach ($rules as $key => $rule) {
$result[$key] = $this->parseSingleRule($rule);
}
return $result;
}
protected function parseSingleRule($value) {
if (is_string($value)) {
$rules = explode('|', $value);
$result = array();
foreach ($rules as $dataKey => $rule) {
$kv = explode(':', $rule);
$params = array();
if (count($kv) > 1) {
$params = explode(',', $kv[1]);
}
$result[] = array('name' => $kv[0], 'params' => $params);
}
return $result;
}
if (is_array($value)) {
$value = array_map(function($item) {
if(is_string($item)) {
$name_params = explode(':', $item);
$params = array();
if (count($name_params) > 1) {
$params = explode(',', $name_params[1]);
}
return array('name'=>$name_params[0], 'params'=>$params);
}
if (!is_array($item)) {
throw new InvalidArgumentException('无效的rule参数');
}
$newitem = $item;
if (! isset($item['name'])) {
$newitem = array();
$newitem['name'] = $newitem[0];
$newitem['params'] = count($item) > 1 ? $item[1] : array();
}
return $newitem;
}, $value);
return $value;
}
throw new InvalidArgumentException('无效的rule配置项');
}
private function getRules($key) {
return isset($this->rules[$key]) ? $this->rules[$key] : array();
}
public function valid() {
$this->errors = array();
foreach ($this->data as $key => $value) {
$rules = $this->getRules($key);
foreach ($rules as $rule) {
$this->doValid($key, $value, $rule);
}
}
return $this->isError() ? error(1, $this->message()) : error(0);
}
private function doSingle($callback, $dataKey, $value, $rule) {
$valid = call_user_func($callback, $dataKey, $value, $rule['params']);
if (!$valid) {
$this->errors[$dataKey][$rule['name']] = $this->getMessage($dataKey, $rule);
return false;
}
return true;
}
private function doCustom($callback, $dataKey, $value, $rule) {
$valid = call_user_func($callback, $dataKey, $value, $rule['params'], $this);
if (!$valid) {
$this->errors[$dataKey][$rule['name']] = $this->getMessage($dataKey, $rule);
return false;
}
return true;
}
private function doValid($dataKey, $value, $rule) {
$ruleName = $rule['name'];
if (isset($this->defaults[$ruleName])) {
$callback = array($this, 'valid' . ucfirst($ruleName));
return $this->doSingle($callback, $dataKey, $value, $rule);
}
if (isset($this->custom[$ruleName])) {
$callback = $this->custom[$ruleName];
return $this->doCustom($callback, $dataKey, $value, $rule, $this);
}
throw new InvalidArgumentException('valid' . $rule['name'] . ' 方法未定义');
}
private function getValue($key) {
return isset($this->data[$key]) ? $this->data[$key] : null;
}
protected function getMessage($dataKey, $rule) {
$message = $this->getErrorMessage($dataKey, $rule['name']);
if ($message) {
$message = str_replace(':attribute', $dataKey, $message);
$message = vsprintf($message, $rule['params']); }
return $message;
}
protected function getErrorMessage($dataKey, $ruleName) {
$dr = $dataKey . '.' . $ruleName;
if ($this->messages[$dr]) {
return $this->messages[$dr];
}
if (isset($this->messages[$dataKey])) {
return $this->messages[$dataKey];
}
return isset($this->defaults[$ruleName]) ? $this->defaults[$ruleName] : '错误';
}
public function validRequired($key, $value, $params) {
if (is_null($value)) {
return false;
}
if (is_array($value)) {
return count($value) != 0;
}
if (is_string($value)) {
return $value !== '';
}
return true;
}
public function validInteger($key, $value, $params) {
return filter_var($value, FILTER_VALIDATE_INT) !== false;
}
public function validInt($key, $value, $params) {
return $this->validInteger($key, $value, $params);
}
public function validNumeric($key, $value, $params) {
return is_numeric($value);
}
public function validString($key, $value, $params) {
return is_string($value);
}
public function validJson($key, $value, $params) {
if (!is_scalar($value) && !method_exists($value, '__toString')) {
return false;
}
json_decode($value);
return json_last_error() === JSON_ERROR_NONE;
}
public function validArray($key, $value, $params) {
return is_array($value);
}
public function validFile($key, $value, $params) {
return is_file($value);
}
public function validImage($key, $value, $params) {
return $this->isImage($value);
}
public function validEmail($key, $value, $params) {
return filter_var($value, FILTER_VALIDATE_EMAIL);
}
public function validMobile($key, $value, $params) {
return $this->validRegex($key, $value, array('/^1[34578]\d{9}$/'));
}
public function validRegex($key, $value, $params) {
$this->checkParams(1, $params, 'regex');
return preg_match($params[0], $value);
}
public function validIp($key, $value, $params) {
if (!is_null($value)) {
return filter_var($value, FILTER_VALIDATE_IP);
}
return false;
}
public function validSize($key, $value, $params) {
$this->checkParams(1, $params, 'size');
return $this->getSize($key, $value) == $params[0];
}
public function validMax($key, $value, $params) {
$this->checkParams(1, $params, 'max');
$size = $this->getSize($key, $value);
return $size <= $params[0];
}
public function validMin($key, $value, $params) {
$this->checkParams(1, $params, 'min');
$size = $this->getSize($key, $value);
return $size >= $params[0];
}
public function validUrl($key, $value, $params) {
if (!filter_var($value, FILTER_VALIDATE_URL)) {
return false;
}
$parseData = parse_url($value);
$scheme = $parseData['scheme'];
$allowSchemes = array('http', 'https');
if (!in_array($scheme, $allowSchemes)) { return false;
}
if (!isset($parseData['host'])) {
return false;
}
$host = $parseData['host'];
if (strexists($host, '@')) {
return false;
}
$pattern = '/^(10|172|192|127)/'; if (preg_match($pattern, $host)) {
return false;
}
return parse_path($value);
}
public function validDate($key, $value, $params) {
return $this->checkDate($value);
}
public function validIn($key, $value, $params) {
if (is_array($params)) {
return in_array($value, $params, true);
}
return false;
}
public function validNotin($key, $value, $params) {
return !$this->validIn($key, $value, $params);
}
public function validSame($key, $value, $params) {
$this->checkParams(1, $params, 'same');
$otherField = $params[0];
$otherValue = isset($this->data[$otherField]) ? $this->data[$otherField] : null;
return (is_string($value) || is_numeric($value)) && $value === $otherValue;
}
public function validBetween($key, $value, $params) {
$this->checkParams(2, $params, 'between');
$size = $this->getSize($key, $value);
return $size >= $params[0] && $size <= $params[1];
}
public function validAfter($key, $value, $params) {
$this->checkParams(1, $params, 'afterdate');
$date = $params[0]; return $this->compareDate($value, $date, '>');
}
public function validBefore($key, $value, $params) {
$this->checkParams(1, $params, 'beforedate');
$date = $params[0]; return $this->compareDate($value, $date, '<');
}
private function compareDate($value, $param, $operator = '=') {
if (!$this->checkDate($param)) {
$param = $this->getValue($param);
}
if ($this->checkDate($value) && $this->checkDate($param)) {
$currentTime = $this->getDateTimestamp($value);
$paramTime = $this->getDateTimestamp($param);
return $this->compare($currentTime, $paramTime, $operator);
}
return false;
}
public function validBool($key, $value, $params) {
$acceptable = array(true, false, 0, 1, '0', '1');
return in_array($value, $acceptable, true);
}
public function validPath($key, $value, $params) {
return parse_path($value);
}
protected function getSize($key, $value) {
if (is_numeric($value)) {
return $value;
} elseif (is_array($value)) {
return count($value);
} elseif (is_file($value)) {
return filesize($value) / 1024;
} elseif ($value instanceof SplFileInfo) {
return $value->getSize() / 1024;
} elseif (is_string($value)) {
return mb_strlen($value);
}
return false;
}
private function isImage($value) {
if (is_file($value)) {
$filename = $value;
if ($value instanceof SplFileInfo) {
$filename = $value->getFilename();
}
if (is_string($filename)) {
$pathinfo = pathinfo($filename);
$extension = strtolower($pathinfo['extension']);
return !empty($extension) && in_array($extension, array('jpg', 'jpeg', 'gif', 'png'));
}
}
return false;
}
private function mimeTypeIsImage($mimeType) {
$imgMimeType = explode(',', static::IMG_MIMETYPE);
return in_array($mimeType, $imgMimeType);
}
private function checkDate($value) {
if ($value instanceof DateTimeInterface) {
return true;
}
if ((!is_string($value) && !is_numeric($value)) || strtotime($value) === false) {
return false;
}
$date = date_parse($value);
return checkdate($date['month'], $date['day'], $date['year']);
}
private function checkParams($count, $params, $ruleName) {
if (count($params) != $count) {
throw new InvalidArgumentException("$ruleName 参数个数必须为 $count 个");
}
}
private function getDateTimestamp($date) {
return $date instanceof DateTimeInterface ? $date->getTimestamp() : strtotime($date);
}
protected function compare($first, $second, $operator) {
switch ($operator) {
case '<':
return $first < $second;
case '>':
return $first > $second;
case '<=':
return $first <= $second;
case '>=':
return $first >= $second;
case '=':
return $first == $second;
default:
throw new InvalidArgumentException();
}
}
}