58 lines
1.9 KiB
PHP
58 lines
1.9 KiB
PHP
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<?php
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namespace app\expose\utils\wechat;
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use app\expose\utils\wechat\modules\Event;
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use app\expose\utils\wechat\modules\Reply;
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use support\Log;
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class OfficialAccount
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{
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use Reply;
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use Event;
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public function handle($request, $config)
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{
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$data = $this->getData($request, $config);
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if ($data['MsgType'] === 'event') {
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return $this->handleEvent($data);
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} else {
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return $this->replyText($data, 'hello world');
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}
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}
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public function checkSignature($request, $config)
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{
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$signature = $request->get("signature");
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$timestamp = $request->get("timestamp");
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$nonce = $request->get("nonce");
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$token = $config['token'];
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$tmpArr = [$token, $timestamp, $nonce];
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sort($tmpArr, SORT_STRING);
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$tmpStr = implode($tmpArr);
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$tmpStr = sha1($tmpStr);
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if ($tmpStr == $signature) {
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return true;
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}
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throw new \Exception('signature error');
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}
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private function getData($request, $config)
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{
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$xml = $request->rawBody();
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$json = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);
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$data = json_decode(json_encode($json), true);
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if ($request->get('encrypt_type') === 'aes') {
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$Encrypt = base64_decode($data['Encrypt']);
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$aes_key = $config['aes_key'];
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$aes_key = base64_decode($aes_key . '=');
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$iv = substr($aes_key, 0, 16);
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$xml = openssl_decrypt($Encrypt, 'aes-256-cbc', $aes_key, OPENSSL_RAW_DATA, $iv);
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$filterHeader = substr($xml, 20);
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$xml = preg_replace('/' . $config['app_id'] . '/', '', $filterHeader);
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$json = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);
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$data = json_decode(json_encode($json), true);
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return $data;
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} else {
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return $data;
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}
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}
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}
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