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

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，以下是我简单使用php实现的代码demo:

use NntControllerApplication;
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()
{
 $redis = Application::$shared->di->getRedis();
 $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)
{
 $redis = Application::$shared->di->getRedis();
 $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)
{
 $redis = Application::$shared->di->getRedis();
 $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)
{
 $redis = Application::$shared->di->getRedis();
 $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);
 }
}