熬了两个夜 写出来的功能 在小程序中使用websocket的xmpp协议 链接 openfire服务,构建一个简单的IM系统 demo

let WebIM = require("../../utils/WebIM")["default"];
let __test_account__, __test_psword__;
let disp = require("../../utils/broadcast");

var X2JS = require('../../sdk/x2j/x2js/we-x2js')
let XML = require('../../sdk/ObjTree');
let id = null
var islogin = false;

const btoa = require('../../sdk/base64.min').btoa
// // 这里是引用
// const {atob} = polyfill;
// // 如果你需要用btoa
// const {btoa} = polyfill;

// let JKL = require('../../sdk/jkl-dumper');

// __test_account__ = "easezy";
// __test_psword__ = "111111";
let runAnimation = true
Page({
  data: {
    name: "fizz",
    psd: "123456",
    pcto: "192.168.0.105",
    grant_type: "password",
    rtcUrl: ''
  },
  _startSocket: function () {
    // var to = "win10-2020bwunu";
    var to = this.data.pcto
    var xmlns = "urn:ietf:params:xml:ns:xmpp-framing";
    var version = "1.0";
    var xmllang = "zh";
    var resource = "appClient";
    var from = null;
    var username = this.data.name
    var password = this.data.psd

    console.log(this.data.name, 'this.data.name')
    console.log(this.data.psd, 'this.data.psd')
    console.log(this.data.pcto, 'this.data.pcto')

    let socketTask = wx.connectSocket({
      url: 'ws://'+this.data.pcto+':7070/ws/',
      protocols: ['xmpp']
    })

    //json转xml
    function json2xml(jsonstring) {
      var xotree = new XML.ObjTree();
      var xml = xotree.writeXML(jsonstring);
      //使用jkl-dumper.js中的formatXml方法将xml字符串格式化
      //var xmlText = formatXml(xml);
      return xml;
    }

    //xml转json
    function xml2json(xmlstring) {
      //将xml字符串转为json
      var x2js = new X2JS();
      var json = x2js.xml2js(xmlstring);
      console.log('转换成json', json)
      return json;
    }

    function connwsopen() {
      from = username + "@" + to;
      var temp = {
        "open": {
          "-to": to,
          "-from": from,
          "-xmlns": xmlns,
          "-xml:lang": xmllang,
          "-version": version
        }
      };
      //转化为xml
      var loginXml = null
      // loginXml = `<?xml version="1.0" encoding="UTF-8" ?>
      //   <open to="win10-2020bwunu" from="fizz@win10-2020bwunu" xmlns="urn:ietf:params:xml:ns:xmpp-framing" xml:lang="zh" version="1.0" />`
      loginXml = json2xml(temp)
      socketTask.send({ data: loginXml })
    }

    //登录验证
    function auth(authentication) {
      //字符串格式是：jid+password，以\0作为分隔符
      var temp = username + "@" + to + "\0" + password;
      //Base64编码
      var token = btoa(temp);
      console.log(token, 'token')
      // var message = "<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='PLAIN'>" + token + "</auth>";
      var message = {
        "auth": {
          "-xmlns": "urn:ietf:params:xml:ns:xmpp-sasl",
          "-mechanism": authentication,
          "#text": token
        }
      };
      socketTask.send({
        data: json2xml(message)
      })
    }

    //bind操作
    function bind() {
      console.log('bind')
      var temp = {
        "iq": {
          "-id": id,
          "-type": "set",
          "bind": {
            "-xmlns": "urn:ietf:params:xml:ns:xmpp-bind",
            "resource": resource
          }
        }
      };
      //转化为xml
      var steam = json2xml(temp);
      socketTask.send({ data: steam })

    }

    //获取session
    function getsession() {
      //<iq xmlns="jabber:client" id="ak014gz6x7" type="set"><session xmlns="urn:ietf:params:xml:ns:xmpp-session"/></iq>
      var temp = {
        "iq": {
          "-xmlns": "jabber:client",
          "-id": id,
          "-type": "set",
          "session": { "-xmlns": "urn:ietf:params:xml:ns:xmpp-session" }
        }
      };
      //转化为xml
      var steam = json2xml(temp);
      socketTask.send({ data: steam })
    }

    //上线
    function presence() {
      //<presence id="ak014gz6x7"><status>Online</status><priority>1</priority></presence>
      var temp = {
        "presence": {
          "-id": id,
          "status": "online",
          "priority": "1"
        }
      };
      //转化为xml
      var steam = json2xml(temp);
      socketTask.send({ data: steam })
    }

    //发起新的流
    function newopen() {
      // <open xmlns='jabber:client' to='127.0.0.1' version='1.0' from='wuxinzhe@127.0.0.1' id='70tvu3ooiu' xml:lang='zh'/>
      var temp = {
        "open": {
          "-xmlns": "jabber:client",
          "-to": to,
          "-version": version,
          "-from": from,
          "-id": id,
          "-xml:lang": xmllang
        }
      };
      //转化为xml
      var steam = json2xml(temp);
      socketTask.send({ data: steam })
    }

    //发消息
    function send(number, message) {
      var temp = {
        "message": {
          "-type": "chat",
          "-from": username + "@" + to,
          "-to": number + "@" + to,
          "subject": "标题",
          "body": message
        }
      };
      //转化为xml
      var steam = json2xml(temp);
      websocket.send(steam);
    }

    // 收到消息的处理函数
    function onMessage(event) {
      var jsondata = xml2json(event.data);
      console.log("接收到的", jsondata);
      if (undefined != jsondata.message) {
        if (undefined != jsondata.message.body) {
          console.log("收到的消息：", jsondata.message.body);
        } else if (undefined != jsondata.message.composing) {
          // document.getElementById("isloginsuccess").innerHTML = "对方正在输入";
        } else if (undefined != jsondata.message.gone) {
          // document.getElementById("isloginsuccess").innerHTML = "对方已关闭和您的聊天";
        } else if (undefined != jsondata.message.file) {
          console.log("收到的文件：", jsondata.message);
        } else {

        }
      } else if (undefined != jsondata.open) {
        //记录id
        id = jsondata.open["_id"];
        console.log(id);
      } else if (undefined != jsondata["features"]) {
        if (undefined != jsondata["features"].mechanisms) {
          //获取登录验证方式
          auth(jsondata["features"].mechanisms.mechanism[0]);
        } else if (undefined != jsondata["features"].bind) {
          bind();
        } else {
          //Do-nothing
        }
      } else if (undefined != jsondata.failure) {
        islogin = false;
        // document.getElementById("isloginsuccess").innerHTML = "登录失败，用户名或者密码错误";
        console.log("登录失败，用户名或者密码错误");
      } else if (undefined != jsondata.success) {
        islogin = true;
        // document.getElementById("isloginsuccess").innerHTML = "登录成功";
        console.log("登录成功！");
        //发起新的流
        newopen();
      } else if (undefined != jsondata.iq) {
        if (undefined != jsondata.iq.bind) {
          //获取session会话
          getsession();
        } else {
          presence();
        }
      } else {
        //Do-nothing
      }//if(undefined != jsondata["stream:features"])
    }

    socketTask.onOpen(function (res) {
      console.log('onOpen', res)
      connwsopen()
    })

    socketTask.onMessage(onMessage)
  },

  statechange(e) {
    console.log('live-player code:', e.detail.code)
  },

  error(e) {
    console.error('live-player error:', e.detail.errMsg)
  },

  onLoad: function () {
    const me = this;
    const app = getApp();
    new app.ToastPannel.ToastPannel();

    disp.on("em.xmpp.error.passwordErr", function () {
      me.toastFilled('用户名或密码错误');
    });
  },

  bindUsername: function (e) {
    this.setData({
      name: e.detail.value
    });
  },

  bindPassword: function (e) {
    this.setData({
      psd: e.detail.value
    });
  },
  bindPcto: function (e) {
    console.log(e.detail.value)
    this.setData({
      pcto: e.detail.value
    });
  },
  onFocusPsd: function () {
    this.setData({
      psdFocus: 'psdFocus'
    })
  },
  onBlurPsd: function () {
    this.setData({
      psdFocus: ''
    })
  },
  onFocusName: function () {
    this.setData({
      nameFocus: 'nameFocus'
    })
  },
  onBlurName: function () {
    this.setData({
      nameFocus: ''
    })
  },

  login: function () {
    runAnimation = !runAnimation
    if (!__test_account__ && this.data.name == "") {
      this.toastFilled('请输入用户名！')
      return;
    }
    else if (!__test_account__ && this.data.psd == "") {
      this.toastFilled('请输入密码！')
      return;
    }
    wx.setStorage({
      key: "myUsername",
      data: __test_account__ || this.data.name.toLowerCase()
    });

    // 使用websocket的xmpp链接openfire的
    this._startSocket()

  }

});