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84 lines
2.8 KiB
C#
84 lines
2.8 KiB
C#
11 months ago
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using System;
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using System.Text;
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using System.Security.Cryptography;
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using System.Collections.Generic;
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namespace BP.Tools
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{
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public static class AuthV3Util
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{
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/*
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添加鉴权相关参数 -
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appKey : 应用ID
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salt : 随机值
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curtime : 当前时间戳(秒)
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signType : 签名版本
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sign : 请求签名
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@param appKey 您的应用ID
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@param appSecret 您的应用密钥
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@param paramsMap 请求参数表
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*/
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public static void addAuthParams(string appKey, string appSecret, Dictionary<string, string[]> paramsMap)
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{
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string q = "";
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string[] qArray;
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if (paramsMap.ContainsKey("q"))
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{
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qArray = paramsMap["q"];
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}
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else
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{
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qArray = paramsMap["img"];
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}
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foreach (var item in qArray)
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{
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q += item;
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}
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string salt = System.Guid.NewGuid().ToString();
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string curtime = new DateTimeOffset(DateTime.UtcNow).ToUnixTimeSeconds() + "";
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string sign = calculateSign(appKey, appSecret, q, salt, curtime);
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paramsMap.Add("appKey", new string[] { appKey });
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paramsMap.Add("salt", new string[] { salt });
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paramsMap.Add("curtime", new string[] { curtime });
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paramsMap.Add("signType", new string[] { "v3" });
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paramsMap.Add("sign", new string[] { sign });
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}
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/*
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计算鉴权签名 -
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计算方式 : sign = sha256(appKey + input(q) + salt + curtime + appSecret)
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@param appKey 您的应用ID
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@param appSecret 您的应用密钥
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@param q 请求内容
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@param salt 随机值
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@param curtime 当前时间戳(秒)
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@return 鉴权签名sign
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*/
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public static string calculateSign(string appKey, string appSecret, string q, string salt, string curtime)
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{
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string strSrc = appKey + getInput(q) + salt + curtime + appSecret;
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return encrypt(strSrc);
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}
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private static string encrypt(string strSrc)
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{
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Byte[] inputBytes = Encoding.UTF8.GetBytes(strSrc);
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HashAlgorithm algorithm = new SHA256CryptoServiceProvider();
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Byte[] hashedBytes = algorithm.ComputeHash(inputBytes);
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return BitConverter.ToString(hashedBytes).Replace("-", "");
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}
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private static string getInput(string q)
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{
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if (q == null)
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{
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return "";
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}
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int len = q.Length;
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return len <= 20 ? q : q.Substring(0, 10) + len + q.Substring(len - 10, 10);
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}
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}
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}
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