using Newtonsoft.Json;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Net;
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using System.Text;
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using System.Threading.Tasks;
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using FaceAI;
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namespace WIDESEAWCS_Common
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{
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public class BaiDuFaceHelper
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{
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#region 人脸识别API
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/// <summary>
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/// 获取AccessToken
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/// </summary>
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/// <returns></returns>
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public static string GetAccessToken()
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{
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//string url = string.Format("https://aip.baidubce.com/oauth/2.0/token?client_id={0}&client_secret={1}&grant_type={2}", "TqFQHXSNt6Z7cPQ4vDBfBNjq", "0cli6I6s8JFz3qM1Czi5ciRpDqrJuVvm", "client_credentials");
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//string returnStr = BDWebRequest(url, "", "POST");
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//NLog.LogManager.GetCurrentClassLogger().Trace("百度人脸识别返回：" + returnStr);
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//BDToken token = JsonConvert.DeserializeObject<BDToken>(returnStr);
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//token.getdate = DateTime.Now.ToString();
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//return token.access_token;
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var str = "24.83aee44079e5a27530bc72d5ec7049a3.2592000.1746152354.282335-118294290";
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return str;
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}
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public static string BDWebRequest(string url, string data, string method)
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{
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try
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{
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HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
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request.Method = string.IsNullOrEmpty(method) ? "POST" : method.ToUpper();
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request.UserAgent = "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.22 (KHTML, like Gecko) Chrome/25.0.1364.172 Safari/537.22";
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request.ServicePoint.Expect100Continue = false;
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request.Timeout = 1000 * 60;
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request.ContentType = "application/x-www-form-urlencoded";
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if (!string.IsNullOrEmpty(method) && method.ToUpper() == "POST" && !string.IsNullOrEmpty(data))
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{
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byte[] byteArray = Encoding.UTF8.GetBytes(data);
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request.ContentLength = byteArray.Length;
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using (Stream myRequestStream = request.GetRequestStream())
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{
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myRequestStream.Write(byteArray, 0, byteArray.Length);
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}
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}
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HttpWebResponse myHttpWebResponse = (HttpWebResponse)request.GetResponse();
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using (Stream response = myHttpWebResponse.GetResponseStream())
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{
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using (StreamReader reader = new StreamReader(response, Encoding.UTF8))
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{
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return reader.ReadToEnd();
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}
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}
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}
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catch { return ""; }
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}
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/// <summary>
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/// 人脸检测与属性分析
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/// </summary>
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/// <returns></returns>
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public static string FaceDetect(string path)
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{
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string token = GetAccessToken();
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string host = "https://aip.baidubce.com/rest/2.0/face/v3/detect?access_token=" + token;
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var imgbase64 = GetFileContentAsBase64(path);
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Encoding encoding = Encoding.Default;
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HttpWebRequest request = (HttpWebRequest)WebRequest.Create(host);
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request.Method = "POST";
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request.KeepAlive = true;
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String str = "{\"image\":\"" + imgbase64 + "\",\"image_type\":\"BASE64\"}";
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byte[] buffer = encoding.GetBytes(str);
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request.ContentLength = buffer.Length;
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request.GetRequestStream().Write(buffer, 0, buffer.Length);
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HttpWebResponse response = (HttpWebResponse)request.GetResponse();
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StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);
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string result = reader.ReadToEnd();
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NLog.LogManager.GetCurrentClassLogger().Trace("人脸检测与属性分析：" + result);
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return result;
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}
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/// <summary>
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/// 创建用户人脸识别组
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/// </summary>
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/// <returns></returns>
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public static string GroupAdd(string group)
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{
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string token = GetAccessToken();
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string host = "https://aip.baidubce.com/rest/2.0/face/v3/faceset/group/add?access_token=" + token;
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Encoding encoding = Encoding.Default;
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HttpWebRequest request = (HttpWebRequest)WebRequest.Create(host);
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request.Method = "post";
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request.KeepAlive = true;
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String str = "{\"group_id\":\"" + group + "\"}";
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byte[] buffer = encoding.GetBytes(str);
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request.ContentLength = buffer.Length;
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request.GetRequestStream().Write(buffer, 0, buffer.Length);
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HttpWebResponse response = (HttpWebResponse)request.GetResponse();
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StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);
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string result = reader.ReadToEnd();
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NLog.LogManager.GetCurrentClassLogger().Trace("创建用户组：" + result);
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return result;
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}
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/// <summary>
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/// 获取文件base64编码
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/// </summary>
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/// <param name="path">文件路径</param>
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/// <returns>base64编码信息，不带文件头</returns>
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//public static string GetFileContentAsBase64(string path)
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//{
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// using (FileStream filestream = new FileStream(path, FileMode.Open))
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// {
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// byte[] arr = new byte[filestream.Length];
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// filestream.Read(arr, 0, (int)filestream.Length);
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// string base64 = Convert.ToBase64String(arr);
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// return base64;
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// }
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//}
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public static string GetFileContentAsBase64(string filePath)
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{
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// 只保留文件名，避免路径错误
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string fileName = Path.GetFileName(filePath);
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// 获取文件的完整路径
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string fullPath = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "image", fileName);
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if (!File.Exists(fullPath))
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{
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throw new FileNotFoundException("文件不存在：" + fullPath);
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}
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using (FileStream filestream = new FileStream(fullPath, FileMode.Open, FileAccess.Read))
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{
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byte[] arr = new byte[filestream.Length];
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filestream.Read(arr, 0, arr.Length);
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return Convert.ToBase64String(arr);
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}
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}
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/// <summary>
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/// 人脸注册
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/// </summary>
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/// <returns></returns>
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public static CreateUserResult AddUser(BDUserInfo info)
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{
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string token = GetAccessToken();
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var imgbase64 = GetFileContentAsBase64(info.ImgPath);
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string host = "https://aip.baidubce.com/rest/2.0/face/v3/faceset/user/add?access_token=" + token;
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Encoding encoding = Encoding.Default;
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HttpWebRequest request = (HttpWebRequest)WebRequest.Create(host);
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request.Method = "POST";
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request.KeepAlive = true;
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String str = "{\"image\":\"" + imgbase64 + "\",\"image_type\":\"BASE64\",\"group_id\":\"" + info.group_id + "\",\"user_id\":\"" + info.user_id + "\",\"quality_control\":\"LOW\",\"liveness_control\":\"NORMAL\"}";
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byte[] buffer = encoding.GetBytes(str);
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request.ContentLength = buffer.Length;
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request.GetRequestStream().Write(buffer, 0, buffer.Length);
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HttpWebResponse response = (HttpWebResponse)request.GetResponse();
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StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);
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string result = reader.ReadToEnd();
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NLog.LogManager.GetCurrentClassLogger().Trace("人脸注册：" + result);
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CreateUserResult res = JsonConvert.DeserializeObject<CreateUserResult>(result);//需要将log_id和face_token保存到用户表中，在人脸删除中需要用到
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return res;
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}
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/// <summary>
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/// 人脸删除（删除用户的某一张人脸，如果该用户只有一张人脸图片，则同时删除用户。）
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/// </summary>
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/// <returns></returns>
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public static string DeleteUserImg(DeleteUserImg info)
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{
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string token = GetAccessToken();
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string host = "https://aip.baidubce.com/rest/2.0/face/v3/faceset/user/delete?access_token=" + token;
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Encoding encoding = Encoding.Default;
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HttpWebRequest request = (HttpWebRequest)WebRequest.Create(host);
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request.Method = "POST";
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request.KeepAlive = true;
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String str = "{\"face_token\":\"" + info.face_token + "\",\"log_id\":\"" + info.log_id + "\",\"group_id\":\"" + info.group_id + "\",\"user_id\":\"" + info.user_id + "\"}";
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byte[] buffer = encoding.GetBytes(str);
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request.ContentLength = buffer.Length;
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request.GetRequestStream().Write(buffer, 0, buffer.Length);
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HttpWebResponse response = (HttpWebResponse)request.GetResponse();
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StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);
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string result = reader.ReadToEnd();
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NLog.LogManager.GetCurrentClassLogger().Trace("人脸删除：" + result);
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return result;
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}
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/// <summary>
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/// 用户删除
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/// </summary>
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/// <returns></returns>
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public static string DeleteUser(DeleteUserImg info)
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{
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string token = GetAccessToken();
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string host = "https://aip.baidubce.com/rest/2.0/face/v3/faceset/user/delete?access_token=" + token;
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Encoding encoding = Encoding.Default;
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HttpWebRequest request = (HttpWebRequest)WebRequest.Create(host);
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request.Method = "POST";
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request.KeepAlive = true;
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String str = "{\"group_id\":\"" + info.group_id + "\",\"user_id\":\"" + info.user_id + "\"}";
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byte[] buffer = encoding.GetBytes(str);
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request.ContentLength = buffer.Length;
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request.GetRequestStream().Write(buffer, 0, buffer.Length);
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HttpWebResponse response = (HttpWebResponse)request.GetResponse();
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StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);
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string result = reader.ReadToEnd();
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NLog.LogManager.GetCurrentClassLogger().Trace("用户删除：" + result);
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return result;
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}
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/// <summary>
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/// 人脸搜索
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/// </summary>
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/// <returns></returns>
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public static SearchResult FaceSearch(string path, string group_id_list)
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{
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string token = GetAccessToken();
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var imgbase64 = GetFileContentAsBase64(path);
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string host = "https://aip.baidubce.com/rest/2.0/face/v3/search?access_token=" + token;
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Encoding encoding = Encoding.Default;
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HttpWebRequest request = (HttpWebRequest)WebRequest.Create(host);
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request.Method = "POST";
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request.KeepAlive = true;
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String str = "{\"image\":\"" + imgbase64 + "\",\"image_type\":\"BASE64\",\"group_id_list\":\"" + group_id_list + "\",\"quality_control\":\"LOW\",\"liveness_control\":\"NORMAL\"}";
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byte[] buffer = encoding.GetBytes(str);
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request.ContentLength = buffer.Length;
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request.GetRequestStream().Write(buffer, 0, buffer.Length);
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HttpWebResponse response = (HttpWebResponse)request.GetResponse();
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StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);
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string result = reader.ReadToEnd();
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NLog.LogManager.GetCurrentClassLogger().Trace("人脸搜索：" + result);
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SearchResult searchResult = JsonConvert.DeserializeObject<SearchResult>(result);
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return searchResult;
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}
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#endregion
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}
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/// <summary>
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/// token获取信息
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/// </summary>
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public class BDToken
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{
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/// <summary>
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/// 认证token
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/// </summary>
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public string access_token { get; set; }
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/// <summary>
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/// Access Token的有效期(秒为单位，有效期30天)
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/// </summary>
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public int expires_in { get; set; }
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/// <summary>
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/// 获取时间
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/// </summary>
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public string getdate { get; set; }
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}
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/// <summary>
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/// 人脸注册信息
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/// </summary>
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public class BDUserInfo
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{
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/// <summary>
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/// 图片路径(总数据大小应小于10M，分辨率应小于1920*1080)
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/// </summary>
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public string ImgPath { get; set; }
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/// <summary>
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/// 用户组id，标识一组用户（由数字、字母、下划线组成），长度限制48B
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/// </summary>
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public string group_id { get; set; }
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/// <summary>
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/// 用户id（由数字、字母、下划线组成），对应系统账号
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/// </summary>
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public string user_id { get; set; }
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}
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/// <summary>
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/// 人脸注册时返回对象
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/// </summary>
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public class CreateUserResult
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{
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/// <summary>
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/// 检索成功返回0
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/// </summary>
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public int error_code { get; set; }
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public string error_msg { get; set; }
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/// <summary>
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/// 请求标识码，随机数，唯一
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/// </summary>
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public string log_id { get; set; }
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public CreateUser result { get; set; }
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}
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public class CreateUser
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{
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/// <summary>
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/// 人脸图片的唯一标识
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/// </summary>
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public string face_token { get; set; }
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}
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/// <summary>
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/// 人脸搜索时返回的对象
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/// </summary>
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public class SearchResult
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{
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/// <summary>
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/// 检索成功返回0
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/// </summary>
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public int error_code { get; set; }
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public string error_msg { get; set;}
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public UserResult result { get; set;}
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}
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public class UserResult
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{
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public string face_token { get; set; }
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public List<User_List> user_list { get; set;}
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}
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public class User_List
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{
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public string user_id { get; set; }
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/// <summary>
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/// 用户的匹配得分,80分以上可以判断为同一人
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/// </summary>
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public string score { get; set;}
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}
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/// <summary>
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/// 人脸删除的入参对象（只删除某一张图片，如果该用户只有一张图片，那该用户整体删除
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/// </summary>
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public class DeleteUserImg
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{
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/// <summary>
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/// 请求标识码，随机数，唯一
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/// </summary>
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public string log_id { get; set;}
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/// <summary>
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/// 用户id（由数字、字母、下划线组成），长度限制48B
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/// </summary>
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//public string user_id { get; set;}
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public string user_id { get; set;}
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/// <summary>
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/// 用户组id（由数字、字母、下划线组成） 长度限制48B，删除指定group_id中的user_id信息
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/// </summary>
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public string group_id { get; set;}
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/// <summary>
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/// 需要删除的人脸图片token，（由数字、字母、下划线组成）长度限制64B
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/// </summary>
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public string face_token { get; set;}
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}
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}
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