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41 lines
1.4 KiB
41 lines
1.4 KiB
using BWP.B3WeChat.WeiChatObjs;
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using System;
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using System.Collections.Generic;
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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.Web;
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using System.Web.Script.Serialization;
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namespace BWP.B3WeChat.Utils
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{
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public static class WeChatPageUtil
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{
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const string template = "https://open.weixin.qq.com/connect/oauth2/authorize?appid={APPID}&redirect_uri={REDIRECT_URI}&response_type=code&scope=snsapi_base&state={STATE}#wechat_redirect";
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public static string GetWeChatUrl(string url,string state="1")
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{
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var config = new B3WeChatConfig();
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var result = template.Replace("{APPID}", config.AppID.Value)
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.Replace("{REDIRECT_URI}", HttpUtility.UrlEncode(url))
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.Replace("{STATE}", state);
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return result;
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}
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const string getAccessTokenTemplate = "https://api.weixin.qq.com/sns/oauth2/access_token?appid={APPID}&secret={SECRET}&code={CODE}&grant_type=authorization_code";
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public static string QueryOpenID(string code)
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{
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var config = new B3WeChatConfig();
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var url = getAccessTokenTemplate.Replace("{APPID}", config.AppID.Value)
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.Replace("{SECRET}", config.AppSecret.Value)
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.Replace("{CODE}", code);
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var json = new WebClient() { Encoding = Encoding.UTF8 }.DownloadString(url);
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var response = AuthorizationCodeResponse.Parse(json);
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return response.openid;
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}
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}
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}
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