利用百度ai实现文本和图片审核

之前做平台内容发布审核都是自己构建一套违禁词库，在代码中利用词库判断用户发布的内容，现在可以使用百度ai api完成这个功能。接下来就简单说下怎么做吧：

首先打开百度ai 开发平台 注册一个账号：

注册账号，进入控制台

创建自己的应用，获取apikey 和秘钥

进入文档页 文本审核：

图像审核：

文档很详细，实现用户发布内容审核 图片审核还是很方便简单的。我没有使用官方的sdk，简单的整合了一下作为练手，以下是我简单的代码demo:
图片描述

class Sentive
{
    protected $accessTokenUrl = 'https://aip.baidubce.com/oauth/2.0/token';//获取token url
    protected $textUrl = 'https://aip.baidubce.com/rest/2.0/antispam/v2/spam';//文本审核url
    protected $imgUrl = 'https://aip.baidubce.com/api/v1/solution/direct/img_censor';//图片审核url
    protected $avatarUrl = 'https://aip.baidubce.com/rest/2.0/solution/v1/face_audit';//头像审核url

    protected $grant_type;

    protected $client_id;

    protected $client_secret;

    function __construct()
    {
        $this->grant_type = 'client_credentials';
        $this->client_id = 'xxx';//API Key
        $this->client_secret = 'xxx';//Secret Key
    }

    static function request($url = '', $param = '')
    {
        if (empty($url) || empty($param)) {
            return false;
        }

        $postUrl = $url;
        $curlPost = $param;
        $curl = curl_init();//初始化curl
        curl_setopt($curl, CURLOPT_URL, $postUrl);//抓取指定网页
        curl_setopt($curl, CURLOPT_HEADER, 0);//设置header
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);//要求结果为字符串且输出到屏幕上
        curl_setopt($curl, CURLOPT_POST, 1);//post提交方式
        curl_setopt($curl, CURLOPT_POSTFIELDS, $curlPost);
        $data = curl_exec($curl);//运行curl
        curl_close($curl);


        return $data;
    }

    static function request_post($url = '', $param = array(), $type)
    {
        if (empty($url) || empty($param)) {
            return false;
        }

        $postUrl = $url;
        $curlPost = $param;
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $postUrl);
        curl_setopt($curl, CURLOPT_HEADER, 0);
        // 要求结果为字符串
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        // post方式
        curl_setopt($curl, CURLOPT_POST, 1);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_POSTFIELDS, $curlPost);
        if ($type == "text") {
            curl_setopt($curl, CURLOPT_HTTPHEADER, array('Content-Type: application/x-www-form-urlencoded'));
        } else {
            curl_setopt($curl, CURLOPT_HTTPHEADER, array('Content-Type: application/json;charset=utf-8'));
        }
        curl_setopt($curl, CURLINFO_HEADER_OUT, true);
        $data = curl_exec($curl);
        $code = curl_getinfo($curl, CURLINFO_HTTP_CODE);

        if ($code === 0) {
            throw new \Exception(curl_error($curl));
        }
        curl_close($curl);
        return $data;
    }

    //获取token
    public function getToken()
    {
        new Redis();
        $post_data['grant_type'] = $this->grant_type;
        $post_data['client_id'] = $this->client_id;
        $post_data['client_secret'] = $this->client_secret;
        $o = "";
        foreach ($post_data as $k => $v) {
            $o .= "$k=" . urlencode($v) . "&";
        }
        $post_data = substr($o, 0, -1);
        $res = self::request($this->accessTokenUrl, $post_data);
        $redis->setkey("filterToken", json_decode($res, true)['access_token']);
        return json_decode($res, true)['access_token'];
    }

    //文本审核
    public function textVerify($data)
    {
        new Redis();
        $token = $redis->get("filterToken");
        if (empty($token)) {
            $token = $this->getToken();
        }
        $curl = $this->textUrl . "?access_token=" . $token;
        $result = self::request_post($curl, $data, "text");
        return json_decode($result, true);
    }

    //图片审核
    public function imgVerify($img)
    {
        $redis = new Redis();
        $token = $redis->get("filterToken");
        if (empty($token)) {
            $token = $this->getToken();
        }
        $curl = $this->imgUrl . "?access_token=" . $token;
        $bodys = array(
            'image' => $img,
            'scenes' => array("ocr",
                "face", "public", "politician", "antiporn", "terror", "webimage", "disgust",
                'watermark')
        );
        $bodys = json_encode($bodys);
        $result = self::request_post($curl, $bodys, "img");
        return json_decode($result, true);
    }


    //头像审核
    public function avatarVerify($img)
    {
        $redis = new Redis();
        $token = $redis->get("filterToken");
        if (empty($token)) {
            $token = $this->getToken();
        }
        $curl = $this->avatarUrl . "?access_token=" . $token;
        $bodys = array(
            "configId" => "1",
            "images" => $img
        );
        $result = self::request_post($curl, $bodys, "text");
        return json_decode($result, true);
    }

}