wechat-lite
Version:
wechat js api
295 lines (273 loc) • 7.27 kB
JavaScript
const WeChat = require('.');
const { request, parseJS } = WeChat;
const API_LOGIN = 'https://login.weixin.qq.com';
const API_PUSH = 'https://webpush.weixin.qq.com';
const MSG_TYPE = {
TEXT: 1,
IMAGE: 3,
VOICE: 34,
VIDEO: 43,
MICRO_VIDEO: 62,
EMOTICON: 47,
APP: 49,
VOIP_MSG: 50,
VOIP_NOTIFY: 52,
VOIP_INVITE: 53,
LOCATION: 48,
STATUS_NOTIFY: 51,
SYSNOTICE: 9999,
POSSIBLE_FRIEND_MSG: 40,
VERIFY_MSG: 37,
SHARE_CARD: 42,
SYS : 10000,
RECALLED: 10002,
};
const STATUS_NOTIFY_CODE = {
READED: 1,
ENTER_SESSION: 2,
INITED: 3,
SYNC_CONV: 4,
QUIT_SESSION: 5,
MOMENTS: 9
};
const lowercase = d => Object.keys(d).reduce((o, k) => {
o[k.toLowerCase()] = d[k];
return o;
}, {});
const cookie = d =>
Object.keys(d).reduce((s, k) => s + `${k}=${d[k]};`, '');
const BaseRequest = ({ wxuin, wxsid }) => ({
Skey : '' ,
Uin : wxuin,
Sid : wxsid,
DeviceID : `e${wxsid}`
});
const uuid = appid => {
return request(`${API_LOGIN}/jslogin`, {
query: { appid },
}).then(res => parseJS(res.text(), 'QRLogin').uuid)
};
const status = uuid => {
return request(`${API_LOGIN}/cgi-bin/mmwebwx-bin/login`, {
query: { uuid }
}).then(res => parseJS(res.text()))
};
const login = url => {
return request(url).then(({ headers }) => {
const cookies = headers['set-cookie'];
return (Array.isArray(cookies) ? cookies : [ cookies ])
.filter(cookie => /wxuin|wxsid|webwx_data_ticket/.test(cookie))
.map(cookie => cookie.split(';')[0].split('='))
.reduce((data, [ key, value ]) => {
data[ key ] = value;
return data;
}, {});
});
};
const init = session => {
return request(`${API_LOGIN}/cgi-bin/mmwebwx-bin/webwxinit`, {
method: 'post',
headers: { Cookie: cookie(session) },
body: { BaseRequest: BaseRequest(session) },
}).then(res => res.json())
};
const check = (session, synckey) => {
const query = Object.assign(lowercase(BaseRequest(session)), {
synckey: synckey.List.map(({ Key, Val }) => [ Key, Val ].join('_')).join('|')
});
query.r = ~new Date;
query._ = +new Date;
return request(`${API_PUSH}/cgi-bin/mmwebwx-bin/synccheck`, {
query,
headers: { Cookie: cookie(session) },
})
.then(res => res.text())
.then(text => {
var d = text.split('=');
if(d.length == 2){
var v = d[1];
v = v.replace(/(['"])?([a-zA-Z0-9_]+)(['"])?:/g, '"$2": ');
return JSON.parse(v);
}
});
};
const sync = (session, SyncKey) => {
return request(`${API_LOGIN}/cgi-bin/mmwebwx-bin/webwxsync`, {
method: 'post',
headers: { Cookie: cookie(session) },
body: {
BaseRequest: BaseRequest(session), SyncKey
}
}).then(res => res.json())
};
const contacts = session => {
return request(`${API_LOGIN}/cgi-bin/mmwebwx-bin/webwxgetcontact`, {
headers: { Cookie: cookie(session) },
}).then(res => res.json());
};
/**
* send message to user
* @param wechat
* @param message
* @param ToUserName
*/
const send = ({ session, User }, message) => {
const Msg = Object.assign({
Type: 1,
Content: '',
ToUserName: '',
FromUserName: User.UserName,
LocalID : ~~new Date,
ClientMsgId: ~~new Date,
}, message);
return request(`${API_LOGIN}/cgi-bin/mmwebwx-bin/webwxsendmsg`, {
headers: { Cookie: cookie(session) },
body: {
Msg,
BaseRequest: BaseRequest(session)
}
}).then(res => res.json());
};
/*
uuid --> print
|
V
wait -> loop -> | input: uuid
| |
login <---------| input: login url
| | output: set-cookie(wxuin|wxsid|webwx_data_ticket)
V
init | input:
| | output: { User, SyncKey }
V
check --------->| input: { session, synckey }
| | output: { retcode, selector }
sync <--------- | input: { session, synckey }
| output: { SyncKey , AddMsgList }
*/
module.exports = ({ appId }) => {
const wechat = new WeChat({ appId });
uuid(appId)
.then(uuid => {
wechat.emit('qrcode', `${API_LOGIN}/qrcode/${uuid}`);
return uuid;
})
.then(function next(uuid){
status(uuid).then(st => {
switch(st.code){
case 200:
wechat.emit('auth', st);
break;
case 201:
wechat.emit('scan', st);
case 408:
// 未确认（显示二维码后30秒触发）
default:
next(uuid);
break;
}
});
});
wechat.once('auth', ({ redirect_uri }) => {
login(redirect_uri)
.then(session => wechat.session = session)
.then(init)
.then(userData => {
wechat.emit('login', userData);
return Object.assign(wechat, userData);
})
.then(function next({ session, SyncKey }){
return check(session, SyncKey).then(({ retcode, selector }) => {
switch(parseInt(retcode, 10)){
case 0:
setTimeout(() => next(wechat), 200);
wechat.emit('status', selector);
break;
case 1100:
wechat.emit('logout');
break;
case 1101:
wechat.emit('kickout');
break;
default:
console.error('sync check failed', retcode);
break;
}
});
})
});
wechat.once('login', () => {
contacts(wechat.session).then(({ MemberList }) => {
Object.assign(wechat, { MemberList });
});
});
wechat.on('status', selector => {
switch (parseInt(selector, 10)) {
case 0:
// nothing
break;
case 6:
// message response?
break;
case 2:
wechat.emit('message:new');
break;
case 7:
// session active
break;
default:
console.error('unknow selector', selector);
break;
}
});
wechat.on('message:new', () => {
const { session, SyncKey } = wechat;
sync(session, SyncKey)
.then(response => {
Object.assign(wechat, response);
return response;
})
.then(({ AddMsgList }) => {
AddMsgList.forEach(msg => wechat.emit('message', msg));
})
});
wechat.on('message', (message) => {
switch(parseInt(message.MsgType, 10)){
case MSG_TYPE.TEXT:
wechat.emit('message:text', message);
break;
case MSG_TYPE.STATUS_NOTIFY:
wechat.emit('message:notify', message);
break;
}
});
wechat.on('message:notify', notify => {
switch(parseInt(notify.StatusNotifyCode, 10)){
case STATUS_NOTIFY_CODE.SYNC_CONV:
console.log(notify.StatusNotifyUserName.split(','));
break;
case STATUS_NOTIFY_CODE.ENTER_SESSION:
wechat.emit('session:enter', notify);
break;
case STATUS_NOTIFY_CODE.QUIT_SESSION:
wechat.emit('session:quit', notify);
break;
case STATUS_NOTIFY_CODE.READED:
wechat.emit('message:readed', notify);
break;
case STATUS_NOTIFY_CODE.MOMENTS:
wechat.emit('moments', notify);
break;
default:
console.log('unknow status notify code', notify.StatusNotifyCode);
break;
}
});
wechat.send = (Content, ToUserName) => {
return send(wechat, {
ToUserName,
Content
});
}
return wechat;
};