/
RequestHandler.cs
237 lines (195 loc) · 6.23 KB
/
RequestHandler.cs
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using System;
using System.Collections;
using System.Text;
using System.Web;
using System.Xml;
using System.Security.Cryptography;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using WechatBuilder.API.Payment.wxpay.comm;
namespace WechatBuilder.API.Payment.wxpay
{
/**
'签名工具类
============================================================================/// <summary>
'api说明:
'init();
'初始化函数,默认给一些参数赋值。
'setKey(key_)'设置商户密钥
'createMd5Sign(signParams);字典生成Md5签名
'genPackage(packageParams);获取package包
'createSHA1Sign(signParams);创建签名SHA1
'parseXML();输出xml
'getDebugInfo(),获取debug信息
*
* ============================================================================
*/
public class RequestHandler
{
public RequestHandler(HttpContext httpContext)
{
parameters = new Hashtable();
this.httpContext = httpContext;
}
/** 密钥 */
private string key;
protected HttpContext httpContext;
/** 请求的参数 */
protected Hashtable parameters;
/** debug信息 */
private string debugInfo;
/** 初始化函数 */
public virtual void init()
{
}
/** 获取debug信息 */
public String getDebugInfo()
{
return debugInfo;
}
/** 获取密钥 */
public String getKey()
{
return key;
}
/** 设置密钥 */
public void setKey(string key)
{
this.key = key;
}
/** 设置参数值 */
public void setParameter(string parameter, string parameterValue)
{
if (parameter != null && parameter != "")
{
if (parameters.Contains(parameter))
{
parameters.Remove(parameter);
}
parameters.Add(parameter, parameterValue);
}
}
//获取package带参数的签名包
public string getRequestURL()
{
this.createSign();
StringBuilder sb = new StringBuilder();
ArrayList akeys = new ArrayList(parameters.Keys);
akeys.Sort();
foreach (string k in akeys)
{
string v = (string)parameters[k];
if (null != v && "key".CompareTo(k) != 0)
{
sb.Append(k + "=" + TenpayUtil.UrlEncode(v, getCharset()) + "&");
}
}
//去掉最后一个&
if (sb.Length > 0)
{
sb.Remove(sb.Length - 1, 1);
}
return sb.ToString();
}
//创建md5摘要,规则是:按参数名称a-z排序,遇到空值的参数不参加签名。
protected virtual void createSign()
{
StringBuilder sb = new StringBuilder();
ArrayList akeys = new ArrayList(parameters.Keys);
akeys.Sort();
foreach (string k in akeys)
{
string v = (string)parameters[k];
if (null != v && "".CompareTo(v) != 0
&& "sign".CompareTo(k) != 0 && "key".CompareTo(k) != 0)
{
sb.Append(k + "=" + v + "&");
}
}
sb.Append("key=" + this.getKey());
string sign = MD5Util.GetMD5(sb.ToString(), getCharset()).ToUpper();
this.setParameter("sign", sign);
//debug信息
this.setDebugInfo(sb.ToString() + " => sign:" + sign);
}
//创建package签名
public virtual string createMd5Sign()
{
StringBuilder sb = new StringBuilder();
ArrayList akeys = new ArrayList(parameters.Keys);
akeys.Sort();
foreach (string k in akeys)
{
string v = (string)parameters[k];
if (null != v && "".CompareTo(v) != 0
&& "sign".CompareTo(k) != 0 && "".CompareTo(v) != 0)
{
sb.Append(k + "=" + v + "&");
}
}
string sign = MD5Util.GetMD5(sb.ToString(), getCharset()).ToLower();
this.setParameter("sign", sign);
return sign;
}
//创建sha1签名
public string createSHA1Sign()
{
StringBuilder sb = new StringBuilder();
ArrayList akeys = new ArrayList(parameters.Keys);
akeys.Sort();
foreach (string k in akeys)
{
string v = (string)parameters[k];
if (null != v && "".CompareTo(v) != 0
&& "sign".CompareTo(k) != 0 && "key".CompareTo(k) != 0)
{
if (sb.Length == 0)
{
sb.Append(k + "=" + v);
}
else
{
sb.Append("&" + k + "=" + v);
}
}
}
string paySign = SHA1Util.getSha1(sb.ToString()).ToString().ToLower();
//debug信息
this.setDebugInfo(sb.ToString() + " => sign:" + paySign);
return paySign;
}
//输出XML
public string parseXML()
{
StringBuilder sb = new StringBuilder();
sb.Append("<xml>");
foreach (string k in parameters.Keys)
{
string v = (string)parameters[k];
if (Regex.IsMatch(v, @"^[0-9.]$"))
{
sb.Append("<" + k + ">" + v + "</" + k + ">");
}
else
{
sb.Append("<" + k + "><![CDATA[" + v + "]]></" + k + ">");
}
}
sb.Append("</xml>");
return sb.ToString();
}
/** 设置debug信息 */
public void setDebugInfo(String debugInfo)
{
this.debugInfo = debugInfo;
}
public Hashtable getAllParameters()
{
return this.parameters;
}
protected virtual string getCharset()
{
return this.httpContext.Request.ContentEncoding.BodyName;
}
}
}