通用 HTTP 签名组件的另类实现方式

这篇文章主要介绍了通用 HTTP 签名组件的另类实现方式，实现思路大概是采用链式调用的方式，使得签名的步骤可以动态拼凑组合，本文结合实例代码给大家介绍的非常详细，需要的朋友可以参考下

1、初衷

开发中经常需要做一些接口的签名生成和校验工作，最开始的时候都是每个接口去按照约定单独实现，久而久之就变的非常难维护，因此就琢磨怎么能够写了一个比较通用的签名生成工具。

2、思路

采用链式调用的方式，使得签名的步骤可以动态拼凑组合。

3、直接看效果

//设置数据源var signSource = new Dictionary<string, string>(){{ "param1", "1" },{ "param3", "3+" },{ "param2", "2" }};var signer = new HttpSigner();signer.SetSignData(signSource); //设置数据源并配置规则signer.SetSignData(signSource, setting =>{//按参数名排序//result --> param1 param2 param3setting.IsOrderByWithKey = false; //是否对签名数据的参数值进行UrlEncodesetting.IsDoUrlEncodeForSourceValue = false; //签名主体是否包含参数名setting.IsSignTextContainKey = true;//签名主体中参数和参数值的连接符（需要启用IsSignTextContainKey）setting.SignTextKeyValueSeparator = "=";//签名主体中不同参数项的连接符setting.SignTextItemSeparator = "&";//以上都开启后--> param1=1&param2=2&param3=3 //编码setting.DefaultEncoding = Encoding.UTF8;}); //签名主体设置前缀signer.SetSignData(signSource).SetSignTextPrefix("TestPrefix"); //签名主体设置后缀signer.SetSignData(signSource).SetSignTextSuffix("TestSuffix"); //签名主体进行Base64signer.SetSignData(signSource).SetSignTextBase64(); //签名主体进行MD5,(方法参数为签名结果是否转小写)signer.SetSignData(signSource).SetSignTextMD5(bool isToLower = true); //签名主体进行SHA1,(方法参数为签名结果是否转小写)signer.SetSignData(signSource).SetSignTextSHA1(bool isToLower = true); //获取签名结果string signString = signer.SetSignData(signSource).GetSignResult(); //组合调用string signString = signer.SetSignData(signSource).SetSignTextBase64().SetSignTextMD5().SetSignTextSHA1();

4、代码实现

HttpSignItem类

用于保存签名的参数集合。

namespace JiuLing.CommonLibs.Security.HttpSign{internal class HttpSignItem{public string Key { get; set; }public string Value { get; set; } public HttpSignItem(string key, string value){Key = key;Value = value;}}}

HttpSignSetting类

用于签名的基本配置。

using System.Text; namespace JiuLing.CommonLibs.Security.HttpSign{/// <summary>/// 签名配置/// </summary>public class HttpSignSetting{/// <summary>/// 是否按参数名进行排序/// </summary>public bool IsOrderByWithKey { get; set; } = false; /// <summary>/// 是否对签名数据的参数值进行UrlEncode/// </summary>public bool IsDoUrlEncodeForSourceValue { get; set; } = false; /// <summary>/// 签名主体是否包含参数名/// </summary>public bool IsSignTextContainKey { get; set; } = true; /// <summary>/// 签名主体中参数和参数值的连接符（需要启用IsSignTextContainKey）/// </summary>public string SignTextKeyValueSeparator { get; set; } = "="; /// <summary>/// 签名主体中不同参数项的连接符/// </summary>public string SignTextItemSeparator { get; set; } = "&"; /// <summary>/// 编码/// </summary>public Encoding DefaultEncoding { get; set; } = Encoding.UTF8;}}

HttpSigner类

签名组件的具体实现。

using System;using System.Collections.Generic;using System.Linq; namespace JiuLing.CommonLibs.Security.HttpSign{/// <summary>/// 网络请求签名工具/// </summary>public class HttpSigner{/// <summary>/// 签名配置/// </summary>private readonly HttpSignSetting _setting = new HttpSignSetting();/// <summary>/// 最终的签名串/// </summary>private string _signString; /// <summary>/// 设置签名数据/// </summary>/// <param name="signSource">待签名的键值对</param>/// <param name="setting">配置签名规则</param>/// <returns></returns>/// <exception cref="ArgumentException"></exception>public HttpSigner SetSignData(Dictionary<string, string> signSource, Action<HttpSignSetting> setting = null){setting?.Invoke(_setting);if (_setting == null){throw new ArgumentNullException("无效的签名配置", "setting");} if (signSource == null || signSource.Count == 0){throw new ArgumentException("待签名数据异常", nameof(signSource));} var signSourceList = new List<HttpSignItem>(signSource.Count);foreach (var item in signSource){var itemValue = item.Value;if (_setting.IsDoUrlEncodeForSourceValue){itemValue = System.Web.HttpUtility.UrlEncode(itemValue, _setting.DefaultEncoding);}signSourceList.Add(new HttpSignItem(item.Key, itemValue));} if (_setting.IsOrderByWithKey){signSourceList = signSourceList.OrderBy(x => x.Key).ToList();} if (_setting.IsSignTextContainKey){_signString = string.Join(_setting.SignTextItemSeparator, signSourceList.Select(x => $"{x.Key}{_setting.SignTextKeyValueSeparator}{x.Value}"));}else{_signString = string.Join(_setting.SignTextItemSeparator, signSourceList.Select(x => x.Value));} return this;} /// <summary>/// 签名主体设置前缀/// </summary>/// <param name="input">前缀值</param>/// <returns></returns>public HttpSigner SetSignTextPrefix(string input){_signString = $"{input}{_signString}";return this;} /// <summary>/// 签名主体设置后缀/// </summary>/// <param name="input">后缀值</param>/// <returns></returns>public HttpSigner SetSignTextSuffix(string input){_signString = $"{_signString}{input}";return this;} /// <summary>/// 签名主体设置后缀/// </summary>/// <returns></returns>public HttpSigner SetUrlEncode(){_signString = System.Web.HttpUtility.UrlEncode(_signString, _setting.DefaultEncoding);return this;} /// <summary>/// 签名主体进行Base64/// </summary>/// <returns></returns>public HttpSigner SetSignTextBase64(){_signString = Base64Utils.GetStringValue(_signString);return this;} /// <summary>/// 签名主体进行MD5/// </summary>/// <param name="isToLower">签名结果是否转小写</param>/// <returns></returns>public HttpSigner SetSignTextMD5(bool isToLower = true){if (isToLower){_signString = MD5Utils.GetStringValueToLower(_signString);}else{_signString = MD5Utils.GetStringValueToUpper(_signString);}return this;} /// <summary>/// 签名主体进行SHA1/// </summary>/// <param name="isToLower">签名结果是否转小写</param>/// <returns></returns>public HttpSigner SetSignTextSHA1(bool isToLower = true){if (isToLower){_signString = SHA1Utils.GetStringValueToLower(_signString);}else{_signString = SHA1Utils.GetStringValueToUpper(_signString);}return this;} /// <summary>/// 获取签名结果/// </summary>/// <returns></returns>public string GetSignResult(){return _signString;}}}

5、附上仓库地址

以上代码包含在我的通用类库中，可以直接Nuget搜索JiuLing.CommonLibs安装。GitHub类库地址文章代码地址

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