增加得到JS签名的方法

B3WeChat/B3WeChat.csproj

@@ -122,6 +122,7 @@
     <Compile Include="CustomerUserContext.cs" />
     <Compile Include="Entities\ErrorObject.cs" />
     <Compile Include="Entities\EventType.cs" />
+    <Compile Include="Entities\GetTicketResponse.cs" />
     <Compile Include="Entities\MeassageBody.cs" />
     <Compile Include="Entities\MessageType.cs" />
     <Compile Include="Entities\OpenIDObject.cs" />

B3WeChat/Entities/GetTicketResponse.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace BWP.B3WeChat.Entities
+{
+  public class GetTicketResponse:WeChatResponseBase
+  {
+    public string ticket { get; set; }
+
+    public int expires_in { get; set; }
+  }
+}

B3WeChat/Rpcs/WeChatUserRpc.cs

@@ -1,6 +1,7 @@
 using BWP.B3WeChat.BL;
 using BWP.B3WeChat.BO;
 using BWP.B3WeChat.BO.NamedValueTemplate;
+using BWP.B3WeChat.Utils;
 using Forks.EnterpriseServices.DomainObjects2;
 using Forks.EnterpriseServices.DomainObjects2.DQuery;
 using Forks.EnterpriseServices.JsonRpc;
@@ -87,5 +88,10 @@ namespace BWP.B3WeChat.Rpcs
     }
 
 
+    [Rpc]
+    public static string GetJsApiSignature(string noncestr, string timestamp, string url)
+    {
+      return InOutMessageUtil.GetJsApiSignature(noncestr, timestamp, url);
+    }
   }
 }

B3WeChat/Utils/InOutMessageUtil.cs

@@ -2,6 +2,7 @@
 using BWP.B3WeChat.BO;
 using BWP.B3WeChat.Entities;
 using Forks.Utils;
+using Forks.Utils.Caching;
 using System;
 using System.Collections.Generic;
 using System.IO;
@@ -140,6 +141,37 @@ namespace BWP.B3WeChat.Utils
       GetRequest<WeChatResponseBase>(url);
     }
 
+
+    static DateTime? ticketExpiredTime;
+    
+    static string GetJsApiTicket()
+    {
+      var time = DateTime.Now;
+      if (ticketExpiredTime == null || ticketExpiredTime.Value > time)
+      {
+        //过期时间是2小时，不过这里小一些，避免边界问题
+        ticketExpiredTime = time.Add(new TimeSpan(1, 30, 30));
+      }
+
+      var key = string.Format("{0}_GetJsApiTicket_{1}", TOKEN, ticketExpiredTime.Value.Ticks);
+
+      return CacheManager.GetOrSet(key, (args) =>
+      {
+        var url = string.Format("https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token={0}&type=jsapi", TOKEN);
+        var res = GetRequest<GetTicketResponse>(url);
+        return res.ticket;
+      });
+     
+    }
+
+    public static string GetJsApiSignature(string noncestr, string timestamp, string url)
+    {
+      var origin = string.Format("jsapi_ticket={0}&=noncestr{1}&timestamp={2}&url={3}", GetJsApiTicket(),noncestr, timestamp, url);
+      return FormsAuthentication.HashPasswordForStoringInConfigFile(origin, "SHA1").ToLower();
+    }
+
+
+
     public static List<string> GetOpenIDList()
     {