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<?php |
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declare(strict_types=1); |
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namespace Yansongda\Pay; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Yansongda\Artful\Contract\ConfigInterface; |
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use Yansongda\Artful\Exception\ContainerException; |
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use Yansongda\Artful\Exception\InvalidConfigException; |
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use Yansongda\Artful\Exception\InvalidParamsException; |
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use Yansongda\Artful\Exception\ServiceNotFoundException; |
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use Yansongda\Artful\Plugin\AddPayloadBodyPlugin; |
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use Yansongda\Artful\Plugin\ParserPlugin; |
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use Yansongda\Pay\Exception\DecryptException; |
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use Yansongda\Pay\Exception\Exception; |
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use Yansongda\Pay\Exception\InvalidSignException; |
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use Yansongda\Pay\Plugin\Wechat\AddRadarPlugin; |
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use Yansongda\Pay\Plugin\Wechat\ResponsePlugin; |
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use Yansongda\Pay\Plugin\Wechat\StartPlugin; |
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use Yansongda\Pay\Plugin\Wechat\V3\AddPayloadSignaturePlugin; |
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use Yansongda\Pay\Plugin\Wechat\V3\WechatPublicCertsPlugin; |
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use Yansongda\Pay\Provider\Alipay; |
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use Yansongda\Pay\Provider\Unipay; |
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use Yansongda\Pay\Provider\Wechat; |
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use Yansongda\Supports\Collection; |
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use Yansongda\Supports\Str; |
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use function Yansongda\Artful\get_radar_body; |
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use function Yansongda\Artful\get_radar_method; |
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function get_tenant(array $params = []): string |
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{ |
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return strval($params['_config'] ?? 'default'); |
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} |
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function get_public_cert(string $key): string |
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{ |
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return Str::endsWith($key, ['.cer', '.crt', '.pem']) ? file_get_contents($key) : $key; |
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} |
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function get_private_cert(string $key): string |
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{ |
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if (Str::endsWith($key, ['.crt', '.pem'])) { |
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return file_get_contents($key); |
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} |
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return "-----BEGIN RSA PRIVATE KEY-----\n". |
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wordwrap($key, 64, "\n", true). |
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"\n-----END RSA PRIVATE KEY-----"; |
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} |
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function get_radar_url(array $config, ?Collection $payload): ?string |
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{ |
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return match ($config['mode'] ?? Pay::MODE_NORMAL) { |
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Pay::MODE_SERVICE => $payload?->get('_service_url') ?? $payload?->get('_url') ?? null, |
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Pay::MODE_SANDBOX => $payload?->get('_sandbox_url') ?? $payload?->get('_url') ?? null, |
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default => $payload?->get('_url') ?? null, |
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}; |
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} |
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/** |
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* @throws ContainerException |
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* @throws ServiceNotFoundException |
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*/ |
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function get_alipay_config(array $params = []): array |
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{ |
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$alipay = Pay::get(ConfigInterface::class)->get('alipay'); |
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return $alipay[get_tenant($params)] ?? []; |
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} |
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function get_alipay_url(array $config, ?Collection $payload): string |
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{ |
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$url = get_radar_url($config, $payload) ?? ''; |
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if (str_starts_with($url, 'http')) { |
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return $url; |
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} |
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return Alipay::URL[$config['mode'] ?? Pay::MODE_NORMAL]; |
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} |
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/** |
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* @throws InvalidConfigException |
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* @throws InvalidSignException |
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*/ |
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function verify_alipay_sign(array $config, string $contents, string $sign): void |
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{ |
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if (empty($sign)) { |
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throw new InvalidSignException(Exception::SIGN_EMPTY, '签名异常: 验证支付宝签名失败-支付宝签名为空', func_get_args()); |
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} |
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$public = $config['alipay_public_cert_path'] ?? null; |
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if (empty($public)) { |
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throw new InvalidConfigException(Exception::CONFIG_ALIPAY_INVALID, '配置异常: 缺少支付宝配置 -- [alipay_public_cert_path]'); |
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} |
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$result = 1 === openssl_verify( |
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$contents, |
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base64_decode($sign), |
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get_public_cert($public), |
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OPENSSL_ALGO_SHA256 |
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); |
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if (!$result) { |
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throw new InvalidSignException(Exception::SIGN_ERROR, '签名异常: 验证支付宝签名失败', func_get_args()); |
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} |
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} |
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/** |
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* @throws ContainerException |
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* @throws ServiceNotFoundException |
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*/ |
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function get_wechat_config(array $params = []): array |
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{ |
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$wechat = Pay::get(ConfigInterface::class)->get('wechat'); |
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return $wechat[get_tenant($params)] ?? []; |
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} |
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function get_wechat_method(?Collection $payload): string |
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{ |
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return get_radar_method($payload) ?? 'POST'; |
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} |
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/** |
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* @throws InvalidParamsException |
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*/ |
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function get_wechat_url(array $config, ?Collection $payload): string |
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{ |
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$url = get_radar_url($config, $payload); |
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if (empty($url)) { |
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throw new InvalidParamsException(Exception::PARAMS_WECHAT_URL_MISSING, '参数异常: 微信 `_url` 或 `_service_url` 参数缺失:你可能用错插件顺序,应该先使用 `业务插件`'); |
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} |
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if (str_starts_with($url, 'http')) { |
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return $url; |
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} |
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return Wechat::URL[$config['mode'] ?? Pay::MODE_NORMAL].$url; |
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} |
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/** |
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* @throws InvalidParamsException |
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*/ |
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function get_wechat_body(?Collection $payload): mixed |
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{ |
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$body = get_radar_body($payload); |
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if (is_null($body)) { |
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throw new InvalidParamsException(Exception::PARAMS_WECHAT_BODY_MISSING, '参数异常: 微信 `_body` 参数缺失:你可能用错插件顺序,应该先使用 `AddPayloadBodyPlugin`'); |
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} |
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return $body; |
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} |
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function get_wechat_type_key(array $params): string |
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{ |
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$key = ($params['_type'] ?? 'mp').'_app_id'; |
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if ('app_app_id' === $key) { |
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$key = 'app_id'; |
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} |
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return $key; |
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} |
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/** |
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* @throws InvalidConfigException |
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*/ |
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function get_wechat_sign(array $config, string $contents): string |
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{ |
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$privateKey = $config['mch_secret_cert'] ?? null; |
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if (empty($privateKey)) { |
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throw new InvalidConfigException(Exception::CONFIG_WECHAT_INVALID, '配置异常: 缺少微信配置 -- [mch_secret_cert]'); |
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} |
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$privateKey = get_private_cert($privateKey); |
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openssl_sign($contents, $sign, $privateKey, 'sha256WithRSAEncryption'); |
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return base64_encode($sign); |
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} |
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/** |
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* @throws InvalidConfigException |
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*/ |
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function get_wechat_sign_v2(array $config, array $payload, bool $upper = true): string |
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{ |
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$key = $config['mch_secret_key_v2'] ?? null; |
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if (empty($key)) { |
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throw new InvalidConfigException(Exception::CONFIG_WECHAT_INVALID, '配置异常: 缺少微信配置 -- [mch_secret_key_v2]'); |
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} |
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ksort($payload); |
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$buff = ''; |
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foreach ($payload as $k => $v) { |
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$buff .= ('sign' != $k && '' != $v && !is_array($v)) ? $k.'='.$v.'&' : ''; |
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} |
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$sign = md5($buff.'key='.$key); |
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return $upper ? strtoupper($sign) : $sign; |
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} |
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/** |
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* @throws ContainerException |
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* @throws DecryptException |
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* @throws InvalidConfigException |
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* @throws InvalidParamsException |
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* @throws InvalidSignException |
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* @throws ServiceNotFoundException |
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*/ |
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function verify_wechat_sign(ResponseInterface|ServerRequestInterface $message, array $params): void |
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{ |
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if ($message instanceof ServerRequestInterface && 'localhost' === $message->getUri()->getHost()) { |
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return; |
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} |
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$wechatSerial = $message->getHeaderLine('Wechatpay-Serial'); |
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$timestamp = $message->getHeaderLine('Wechatpay-Timestamp'); |
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$random = $message->getHeaderLine('Wechatpay-Nonce'); |
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$sign = $message->getHeaderLine('Wechatpay-Signature'); |
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$body = (string) $message->getBody(); |
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$content = $timestamp."\n".$random."\n".$body."\n"; |
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$public = get_wechat_config($params)['wechat_public_cert_path'][$wechatSerial] ?? null; |
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if (empty($sign)) { |
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throw new InvalidSignException(Exception::SIGN_EMPTY, '签名异常: 微信签名为空', ['headers' => $message->getHeaders(), 'body' => $body]); |
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} |
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$public = get_public_cert( |
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empty($public) ? reload_wechat_public_certs($params, $wechatSerial) : $public |
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); |
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$result = 1 === openssl_verify( |
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$content, |
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base64_decode($sign), |
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$public, |
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'sha256WithRSAEncryption' |
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); |
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if (!$result) { |
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throw new InvalidSignException(Exception::SIGN_ERROR, '签名异常: 验证微信签名失败', ['headers' => $message->getHeaders(), 'body' => $body]); |
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} |
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} |
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/** |
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* @throws InvalidConfigException |
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* @throws InvalidSignException |
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*/ |
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function verify_wechat_sign_v2(array $config, array $destination): void |
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{ |
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$sign = $destination['sign'] ?? null; |
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if (empty($sign)) { |
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throw new InvalidSignException(Exception::SIGN_EMPTY, '签名异常: 微信签名为空', $destination); |
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} |
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$key = $config['mch_secret_key_v2'] ?? null; |
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if (empty($key)) { |
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throw new InvalidConfigException(Exception::CONFIG_WECHAT_INVALID, '配置异常: 缺少微信配置 -- [mch_secret_key_v2]'); |
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} |
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if (get_wechat_sign_v2($config, $destination) !== $sign) { |
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throw new InvalidSignException(Exception::SIGN_ERROR, '签名异常: 验证微信签名失败', $destination); |
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} |
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} |
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function encrypt_wechat_contents(string $contents, string $publicKey): ?string |
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{ |
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if (openssl_public_encrypt($contents, $encrypted, get_public_cert($publicKey), OPENSSL_PKCS1_OAEP_PADDING)) { |
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return base64_encode($encrypted); |
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} |
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return null; |
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} |
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function decrypt_wechat_contents(string $encrypted, array $config): ?string |
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{ |
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if (openssl_private_decrypt(base64_decode($encrypted), $decrypted, get_private_cert($config['mch_secret_cert'] ?? ''), OPENSSL_PKCS1_OAEP_PADDING)) { |
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return $decrypted; |
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} |
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return null; |
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} |
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/** |
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* @throws ContainerException |
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* @throws DecryptException |
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* @throws InvalidConfigException |
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* @throws InvalidParamsException |
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* @throws ServiceNotFoundException |
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*/ |
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function reload_wechat_public_certs(array $params, ?string $serialNo = null): string |
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{ |
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$data = Pay::wechat()->pay( |
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[StartPlugin::class, WechatPublicCertsPlugin::class, AddPayloadBodyPlugin::class, AddPayloadSignaturePlugin::class, AddRadarPlugin::class, ResponsePlugin::class, ParserPlugin::class], |
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$params |
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)->get('data', []); |
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$wechatConfig = get_wechat_config($params); |
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foreach ($data as $item) { |
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$certs[$item['serial_no']] = decrypt_wechat_resource($item['encrypt_certificate'], $wechatConfig)['ciphertext'] ?? ''; |
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} |
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Pay::get(ConfigInterface::class)->set( |
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'wechat.'.get_tenant($params).'.wechat_public_cert_path', |
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((array) ($wechatConfig['wechat_public_cert_path'] ?? [])) + ($certs ?? []), |
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); |
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if (!is_null($serialNo) && empty($certs[$serialNo])) { |
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throw new InvalidConfigException(Exception::CONFIG_WECHAT_INVALID, '配置异常: 获取微信 wechat_public_cert_path 配置失败'); |
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} |
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return $certs[$serialNo] ?? ''; |
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} |
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/** |
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* @throws ContainerException |
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* @throws DecryptException |
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* @throws InvalidConfigException |
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* @throws InvalidParamsException |
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* @throws ServiceNotFoundException |
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*/ |
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function get_wechat_public_certs(array $params = [], ?string $path = null): void |
338
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{ |
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reload_wechat_public_certs($params); |
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|
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$config = get_wechat_config($params); |
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if (empty($path)) { |
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|
|
var_dump($config['wechat_public_cert_path']); |
|
|
|
|
345
|
|
|
|
346
|
|
|
return; |
347
|
|
|
} |
348
|
|
|
|
349
|
|
|
foreach ($config['wechat_public_cert_path'] as $serialNo => $cert) { |
350
|
|
|
file_put_contents($path.'/'.$serialNo.'.crt', $cert); |
351
|
|
|
} |
352
|
|
|
} |
353
|
|
|
|
354
|
|
|
/** |
355
|
|
|
* @throws InvalidConfigException |
356
|
|
|
* @throws DecryptException |
357
|
|
|
*/ |
358
|
|
|
function decrypt_wechat_resource(array $resource, array $config): array |
359
|
|
|
{ |
360
|
|
|
$ciphertext = base64_decode($resource['ciphertext'] ?? ''); |
361
|
|
|
$secret = $config['mch_secret_key'] ?? null; |
362
|
|
|
|
363
|
|
|
if (strlen($ciphertext) <= Wechat::AUTH_TAG_LENGTH_BYTE) { |
364
|
|
|
throw new DecryptException(Exception::DECRYPT_WECHAT_CIPHERTEXT_PARAMS_INVALID, '加解密异常: ciphertext 位数过短'); |
365
|
|
|
} |
366
|
|
|
|
367
|
|
|
if (is_null($secret) || Wechat::MCH_SECRET_KEY_LENGTH_BYTE != strlen($secret)) { |
368
|
|
|
throw new InvalidConfigException(Exception::CONFIG_WECHAT_INVALID, '配置异常: 缺少微信配置 -- [mch_secret_key]'); |
369
|
|
|
} |
370
|
|
|
|
371
|
|
|
$resource['ciphertext'] = match ($resource['algorithm'] ?? '') { |
372
|
|
|
'AEAD_AES_256_GCM' => decrypt_wechat_resource_aes_256_gcm($ciphertext, $secret, $resource['nonce'] ?? '', $resource['associated_data'] ?? ''), |
373
|
|
|
default => throw new DecryptException(Exception::DECRYPT_WECHAT_DECRYPTED_METHOD_INVALID, '加解密异常: algorithm 不支持'), |
374
|
|
|
}; |
375
|
|
|
|
376
|
|
|
return $resource; |
377
|
|
|
} |
378
|
|
|
|
379
|
|
|
/** |
380
|
|
|
* @throws DecryptException |
381
|
|
|
*/ |
382
|
|
|
function decrypt_wechat_resource_aes_256_gcm(string $ciphertext, string $secret, string $nonce, string $associatedData): array|string |
383
|
|
|
{ |
384
|
|
|
$decrypted = openssl_decrypt( |
385
|
|
|
substr($ciphertext, 0, -Wechat::AUTH_TAG_LENGTH_BYTE), |
386
|
|
|
'aes-256-gcm', |
387
|
|
|
$secret, |
388
|
|
|
OPENSSL_RAW_DATA, |
389
|
|
|
$nonce, |
390
|
|
|
substr($ciphertext, -Wechat::AUTH_TAG_LENGTH_BYTE), |
391
|
|
|
$associatedData |
392
|
|
|
); |
393
|
|
|
|
394
|
|
|
if (false === $decrypted) { |
395
|
|
|
throw new DecryptException(Exception::DECRYPT_WECHAT_ENCRYPTED_DATA_INVALID, '加解密异常: 解密失败,请检查微信 mch_secret_key 是否正确'); |
396
|
|
|
} |
397
|
|
|
|
398
|
|
|
if ('certificate' !== $associatedData) { |
399
|
|
|
$decrypted = json_decode($decrypted, true); |
400
|
|
|
|
401
|
|
|
if (JSON_ERROR_NONE !== json_last_error()) { |
402
|
|
|
throw new DecryptException(Exception::DECRYPT_WECHAT_ENCRYPTED_DATA_INVALID, '加解密异常: 待解密数据非正常数据'); |
403
|
|
|
} |
404
|
|
|
} |
405
|
|
|
|
406
|
|
|
return $decrypted; |
407
|
|
|
} |
408
|
|
|
|
409
|
|
|
/** |
410
|
|
|
* @throws ContainerException |
411
|
|
|
* @throws DecryptException |
412
|
|
|
* @throws InvalidConfigException |
413
|
|
|
* @throws InvalidParamsException |
414
|
|
|
* @throws ServiceNotFoundException |
415
|
|
|
*/ |
416
|
|
|
function get_wechat_serial_no(array $params): string |
417
|
|
|
{ |
418
|
|
|
if (!empty($params['_serial_no'])) { |
419
|
|
|
return $params['_serial_no']; |
420
|
|
|
} |
421
|
|
|
|
422
|
|
|
$config = get_wechat_config($params); |
423
|
|
|
|
424
|
|
|
if (empty($config['wechat_public_cert_path'])) { |
425
|
|
|
reload_wechat_public_certs($params); |
426
|
|
|
|
427
|
|
|
$config = get_wechat_config($params); |
428
|
|
|
} |
429
|
|
|
|
430
|
|
|
mt_srand(); |
431
|
|
|
|
432
|
|
|
return strval(array_rand($config['wechat_public_cert_path'])); |
433
|
|
|
} |
434
|
|
|
|
435
|
|
|
/** |
436
|
|
|
* @throws InvalidParamsException |
437
|
|
|
*/ |
438
|
|
|
function get_wechat_public_key(array $config, string $serialNo): string |
439
|
|
|
{ |
440
|
|
|
$publicKey = $config['wechat_public_cert_path'][$serialNo] ?? null; |
441
|
|
|
|
442
|
|
|
if (empty($publicKey)) { |
443
|
|
|
throw new InvalidParamsException(Exception::PARAMS_WECHAT_SERIAL_NOT_FOUND, '参数异常: 微信公钥序列号为找到 -'.$serialNo); |
444
|
|
|
} |
445
|
|
|
|
446
|
|
|
return $publicKey; |
447
|
|
|
} |
448
|
|
|
|
449
|
|
|
/** |
450
|
|
|
* @throws InvalidConfigException |
451
|
|
|
*/ |
452
|
|
|
function get_wechat_miniprogram_pay_sign(array $config, string $url, string $payload): string |
453
|
|
|
{ |
454
|
|
|
if (empty($config['mini_app_key_virtual_pay'])) { |
455
|
|
|
throw new InvalidConfigException(Exception::CONFIG_WECHAT_INVALID, '配置异常: 缺少微信配置 -- [mini_app_key_virtual_pay]'); |
456
|
|
|
} |
457
|
|
|
|
458
|
|
|
return hash_hmac('sha256', $url.'&'.$payload, $config['mini_app_key_virtual_pay']); |
459
|
|
|
} |
460
|
|
|
|
461
|
|
|
function get_wechat_miniprogram_user_sign(string $sessionKey, string $payload): string |
462
|
|
|
{ |
463
|
|
|
return hash_hmac('sha256', $payload, $sessionKey); |
464
|
|
|
} |
465
|
|
|
|
466
|
|
|
/** |
467
|
|
|
* @throws ContainerException |
468
|
|
|
* @throws ServiceNotFoundException |
469
|
|
|
*/ |
470
|
|
|
function get_unipay_config(array $params = []): array |
471
|
|
|
{ |
472
|
|
|
$unipay = Pay::get(ConfigInterface::class)->get('unipay'); |
473
|
|
|
|
474
|
|
|
return $unipay[get_tenant($params)] ?? []; |
475
|
|
|
} |
476
|
|
|
|
477
|
|
|
/** |
478
|
|
|
* @throws InvalidConfigException |
479
|
|
|
* @throws InvalidSignException |
480
|
|
|
*/ |
481
|
|
|
function verify_unipay_sign(array $config, string $contents, string $sign, ?string $signPublicKeyCert = null): void |
482
|
|
|
{ |
483
|
|
|
if (empty($sign)) { |
484
|
|
|
throw new InvalidSignException(Exception::SIGN_EMPTY, '签名异常: 银联签名为空', func_get_args()); |
485
|
|
|
} |
486
|
|
|
|
487
|
|
|
if (empty($signPublicKeyCert) && empty($public = $config['unipay_public_cert_path'] ?? null)) { |
488
|
|
|
throw new InvalidConfigException(Exception::CONFIG_UNIPAY_INVALID, '配置异常: 缺少银联配置 -- [unipay_public_cert_path]'); |
489
|
|
|
} |
490
|
|
|
|
491
|
|
|
$result = 1 === openssl_verify( |
492
|
|
|
hash('sha256', $contents), |
493
|
|
|
base64_decode($sign), |
494
|
|
|
get_public_cert($signPublicKeyCert ?? $public ?? ''), |
495
|
|
|
'sha256' |
496
|
|
|
); |
497
|
|
|
|
498
|
|
|
if (!$result) { |
499
|
|
|
throw new InvalidSignException(Exception::SIGN_ERROR, '签名异常: 验证银联签名失败', func_get_args()); |
500
|
|
|
} |
501
|
|
|
} |
502
|
|
|
|
503
|
|
|
/** |
504
|
|
|
* @throws InvalidParamsException |
505
|
|
|
*/ |
506
|
|
|
function get_unipay_url(array $config, ?Collection $payload): string |
507
|
|
|
{ |
508
|
|
|
$url = get_radar_url($config, $payload); |
509
|
|
|
|
510
|
|
|
if (empty($url)) { |
511
|
|
|
throw new InvalidParamsException(Exception::PARAMS_UNIPAY_URL_MISSING, '参数异常: 银联 `_url` 参数缺失:你可能用错插件顺序,应该先使用 `业务插件`'); |
512
|
|
|
} |
513
|
|
|
|
514
|
|
|
if (str_starts_with($url, 'http')) { |
515
|
|
|
return $url; |
516
|
|
|
} |
517
|
|
|
|
518
|
|
|
return Unipay::URL[$config['mode'] ?? Pay::MODE_NORMAL].$url; |
519
|
|
|
} |
520
|
|
|
|
521
|
|
|
/** |
522
|
|
|
* @throws InvalidParamsException |
523
|
|
|
*/ |
524
|
|
|
function get_unipay_body(?Collection $payload): string |
525
|
|
|
{ |
526
|
|
|
$body = get_radar_body($payload); |
527
|
|
|
|
528
|
|
|
if (is_null($body)) { |
529
|
|
|
throw new InvalidParamsException(Exception::PARAMS_UNIPAY_BODY_MISSING, '参数异常: 银联 `_body` 参数缺失:你可能用错插件顺序,应该先使用 `AddPayloadBodyPlugin`'); |
530
|
|
|
} |
531
|
|
|
|
532
|
|
|
return $body; |
533
|
|
|
} |
534
|
|
|
|
535
|
|
|
/** |
536
|
|
|
* @throws InvalidConfigException |
537
|
|
|
*/ |
538
|
|
|
function get_unipay_sign_qra(array $config, array $payload): string |
539
|
|
|
{ |
540
|
|
|
$key = $config['mch_secret_key'] ?? null; |
541
|
|
|
|
542
|
|
|
if (empty($key)) { |
543
|
|
|
throw new InvalidConfigException(Exception::CONFIG_UNIPAY_INVALID, '配置异常: 缺少银联配置 -- [mch_secret_key]'); |
544
|
|
|
} |
545
|
|
|
|
546
|
|
|
ksort($payload); |
547
|
|
|
|
548
|
|
|
$buff = ''; |
549
|
|
|
|
550
|
|
|
foreach ($payload as $k => $v) { |
551
|
|
|
$buff .= ('sign' != $k && '' != $v && !is_array($v)) ? $k.'='.$v.'&' : ''; |
552
|
|
|
} |
553
|
|
|
|
554
|
|
|
return strtoupper(md5($buff.'key='.$key)); |
555
|
|
|
} |
556
|
|
|
|
557
|
|
|
/** |
558
|
|
|
* @throws InvalidConfigException |
559
|
|
|
* @throws InvalidSignException |
560
|
|
|
*/ |
561
|
|
|
function verify_unipay_sign_qra(array $config, array $destination): void |
562
|
|
|
{ |
563
|
|
|
$sign = $destination['sign'] ?? null; |
564
|
|
|
|
565
|
|
|
if (empty($sign)) { |
566
|
|
|
throw new InvalidSignException(Exception::SIGN_EMPTY, '签名异常: 银联签名为空', $destination); |
567
|
|
|
} |
568
|
|
|
|
569
|
|
|
$key = $config['mch_secret_key'] ?? null; |
570
|
|
|
|
571
|
|
|
if (empty($key)) { |
572
|
|
|
throw new InvalidConfigException(Exception::CONFIG_UNIPAY_INVALID, '配置异常: 缺少银联配置 -- [mch_secret_key]'); |
573
|
|
|
} |
574
|
|
|
|
575
|
|
|
if (get_unipay_sign_qra($config, $destination) !== $sign) { |
576
|
|
|
throw new InvalidSignException(Exception::SIGN_ERROR, '签名异常: 验证银联签名失败', $destination); |
577
|
|
|
} |
578
|
|
|
} |
579
|
|
|
|
This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces.
This is most likely a typographical error or the method has been renamed.