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