<?php /** * Copyright 1999-2022 iFLYTEK Corporation * Licensed under the Apache License, Version 2.0 (the 'License'); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an 'AS IS' BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace IFlytek\Xfyun\Speech; use IFlytek\Xfyun\Core\Traits\SignTrait; use IFlytek\Xfyun\Core\HttpClient; /** * 讯飞Ai户端 * * @author guizheng@iflytek.com */ class IatClient { use SignTrait; protected $appId; protected $apiKey; protected $apiSecret; protected $uid; protected $resId; protected $requestConfig; protected $client; public function __construct($appId, $apiKey, $apiSecret, $uid = null, $resId = null, $requestConfig = []) { $this->appId = $appId; $this->apiKey = $apiKey; $this->apiSecret = $apiSecret; $this->uid = $uid; $this->resId = $resId; $this->client = new HttpClient([]); } public function assembleAuthUrl($addr, $method='GET') { $apiKey=$this->apiKey; $apiSecret=$this->apiSecret; if ($apiKey == "" && $apiSecret == "") { // 不鉴权 return $addr; } $ul = parse_url($addr); // 解析地址 if ($ul === false) { // 地址不对,也不鉴权 return $addr; } // // $date = date(DATE_RFC1123); // 获取当前时间并格式化为RFC1123格式的字符串 $timestamp = time(); $rfc1123_format = gmdate("D, d M Y H:i:s \G\M\T", $timestamp); // $rfc1123_format = "Mon, 31 Jul 2023 08:24:03 GMT"; // 参与签名的字段 host, date, request-line $signString = array("host: " . $ul["host"], "date: " . $rfc1123_format, $method . " " . $ul["path"] . " HTTP/1.1"); // 对签名字符串进行排序,确保顺序一致 // ksort($signString); // 将签名字符串拼接成一个字符串 $sgin = implode("\n", $signString); // 对签名字符串进行HMAC-SHA256加密,得到签名结果 $sha = hash_hmac('sha256', $sgin, $apiSecret, true); $signature_sha_base64 = base64_encode($sha); // 将API密钥、算法、头部信息和签名结果拼接成一个授权URL $authUrl = "api_key=\"$apiKey\",algorithm=\"hmac-sha256\",headers=\"host date request-line\",signature=\"$signature_sha_base64\""; // 对授权URL进行Base64编码,并添加到原始地址后面作为查询参数 $authAddr = $addr . '?' . http_build_query(array( 'host' => $ul['host'], 'date' => $rfc1123_format, 'authorization' => base64_encode($authUrl), )); return $authAddr; } }