Detailed explanation of WeChat protocol

WeChat web protocol analysis (WeChat web version wx2.qq.com)

1. Open the homepage and assign a random uuid,
2. Get the QR code image based on the uuid.
3. WeChat client scans the picture and confirms login on the client.
4. The browser keeps calling an interface. If the login is successful, it calls the login interface
5. At this time, you can get the contact list and send a message. Then continuously call the synchronization interface.
6. If the synchronization interface returns, you can obtain new messages and then continue to call the synchronization interface.

Source code address: github.com/biezhi/wechat-robot

Execution process

       +--------------+     +---------------+   +---------------+
       |              |     |               |   |               |
       |   Get UUID   |     |  Get Contact  |   | Status Notify |
       |              |     |               |   |               |
       +-------+------+     +-------^-------+   +-------^-------+
               |                    |                   |
               |                    +-------+  +--------+
               |                            |  |
       +-------v------+               +-----+--+------+      +--------------+
       |              |               |               |      |              |
       |  Get QRCode  |               |  Weixin Init  +------>  Sync Check  3bf88ffbd78cd8cc70f3dbf9b7dc92b7    Login     +---------------> New Login Page |     |  Weixin Sync  |
|      |              |               |                |     |               |
|      +------+-------+               +----------------+     +---------------+
|             |
|QRCode Scaned|
+-------------+

WebWechat API

1. Get UUID (refer to method getUUID)

##dataURL Encodeparams##Return data (

API	Get UUID
url	https ://login.weixin.qq.com/jslogin
method	GET
	appid : wx782c26e4c19acffb fun : new lang : zh_CN _ : Timestamp

String

) :

window.QRLogin.code = 200; window.QRLogin.uuid = "xxx"

2. Display QR code (refer to method showQrCode)

##APIDisplay QR codeurllogin.weixin.qq.com/qrcode/{uuid}methodPOSTparams : webwx 076402276aae5dbec7f672f8f4e5cc81 3. Wait for login (refer to method waitForLogin) Here is WeChat confirmation login

t	_ : Timestamp

##APIQR code scan loginurllogin.weixin.qq.com/cgi-bin/mmwebwx-bin/loginGETtip Return data (String ):

window.code=xxx;

xxx:    408 登陆超时    201 扫描成功    200 确认登录

当返回200时，还会有
window.redirect_uri="https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxnewloginpage?ticket=xxx&uuid=xxx&lang=xxx&scan=xxx";

4. Log in to get

	method
	params
: 1: Not scanned 0 : Scanned	uuid : Obtained uuid _ : Timestamp

Cookie

(refer to method login)

APIwebwxnewloginpageurlwx2.qq.com/cgi-bin/mmwebwx-bin/webwxnewloginpageGETticketReturn Data (XML):

	method
	params
: xxx	uuid : xxx lang : zh_CN scan : xxx fun : new

<error>
    <ret>0</ret>
    <message>OK</message>
    <skey>xxx</skey>
    <wxsid>xxx</wxsid>
    <wxuin>xxx</wxuin>
    <pass_ticket>xxx</pass_ticket>
    <isgrayscale>1</isgrayscale></error>

In this step, get the skey,

wxsid

, wxuin, # in xml ##pass_ticket5. WeChat initialization (refer to method wxInit)

API

webwxiniturlwx2.qq.com/cgi-bin/mmwebwx-bin/webwxinitmethodPOSTdataJSONContent -Type: application/json; charset=UTF-8params{ BaseRequest: { Uin: xxx, Skey: xxx,

header

Sid: xxx,

DeviceID: xxx,
}
}


##

返回数据(JSON):

{
    "BaseResponse": {
        "Ret": 0,
        "ErrMsg": ""
    },
    "Count": 11,
    "ContactList": [...],
    "SyncKey": {
        "Count": 4,
        "List": [
            {
                "Key": 1,
                "Val": 635705559
            },
            ...
        ]
    },
    "User": {
        "Uin": xxx,
        "UserName": xxx,
        "NickName": xxx,
        "HeadImgUrl": xxx,
        "RemarkName": "",
        "PYInitial": "",
        "PYQuanPin": "",
        "RemarkPYInitial": "",
        "RemarkPYQuanPin": "",
        "HideInputBarFlag": 0,
        "StarFriend": 0,
        "Sex": 1,
        "Signature": "Apt-get install B",
        "AppAccountFlag": 0,
        "VerifyFlag": 0,
        "ContactFlag": 0,
        "WebWxPluginSwitch": 0,
        "HeadImgFlag": 1,
        "SnsFlag": 17
    },
    "ChatSet": xxx,
    "SKey": xxx,
    "ClientVersion": 369297683,
    "SystemTime": 1453124908,
    "GrayScale": 1,
    "InviteStartCount": 40,
    "MPSubscribeMsgCount": 2,
    "MPSubscribeMsgList": [...],
    "ClickReportInterval": 600000
}

这一步中获取 SyncKey, User 后面的消息监听用。

6. 开启微信状态通知（参考方法 wxStatusNotify）

API	webwxstatusnotify
url	wx2.qq.com/cgi-bin/mmwebwx-bin/webwxstatusnotify
method	POST
data	JSON
header	Content-Type: application/json; charset=UTF-8
params	{       BaseRequest: { Uin: xxx, Sid: xxx, Skey: xxx, DeviceID: xxx },       Code: 3,       FromUserName: 自己的ID,       ToUserName: 自己的ID,       ClientMsgId: 时间戳  }

返回数据(JSON):

{
    "BaseResponse": {
        "Ret": 0,
        "ErrMsg": ""
    },
    ...
}

7. 获取联系人列表（参考方法 getContact）

API	webwxgetcontact
url	wx2.qq.com/cgi-bin/mmwebwx-bin/webwxgetcontact
method	POST
data	JSON
header	ContentType: application/json; charset=UTF-8
params	{       BaseRequest: {           Uin: xxx,           Sid: xxx,           Skey: xxx,           DeviceID: xxx,       }  }

返回数据(JSON):

{
    "BaseResponse": {
        "Ret": 0,
        "ErrMsg": ""
    },
    "MemberCount": 334,
    "MemberList": [
        {
            "Uin": 0,
            "UserName": xxx,
            "NickName": "Urinx",
            "HeadImgUrl": xxx,
            "ContactFlag": 3,
            "MemberCount": 0,
            "MemberList": [],
            "RemarkName": "",
            "HideInputBarFlag": 0,
            "Sex": 0,
            "Signature": "我是二蛋",
            "VerifyFlag": 8,
            "OwnerUin": 0,
            "PYInitial": "URINX",
            "PYQuanPin": "Urinx",
            "RemarkPYInitial": "",
            "RemarkPYQuanPin": "",
            "StarFriend": 0,
            "AppAccountFlag": 0,
            "Statues": 0,
            "AttrStatus": 0,
            "Province": "",
            "City": "",
            "Alias": "Urinxs",
            "SnsFlag": 0,
            "UniFriend": 0,
            "DisplayName": "",
            "ChatRoomId": 0,
            "KeyWord": "gh_",
            "EncryChatRoomId": ""
        },
        ...
    ],
    "Seq": 0
}

8.消息检查（参考方法 syncCheck）

API	synccheck
url	webpush2.weixin.qq.com/cgi-bin/mmwebwx-bin/synccheck
method	GET
data	JSON
header	ContentType: application/json; charset=UTF-8
params	{       BaseRequest: {           Uin: xxx,           Sid: xxx,           Skey: xxx,           DeviceID: xxx,       }  }

返回数据(String):

window.synccheck={retcode:"xxx",selector:"xxx"}

retcode:
    0 正常
    1100 失败/登出微信
selector:
    0 正常
    2 新的消息
    7 进入/离开聊天界面

9. 获取最新消息（参考方法 webwxsync）

API	webwxsync
url	wx2.qq.com/cgi-bin/mmwebwx-bin/webwxsync?sid=xxx&skey=xxx&pass_ticket=xxx
method	POST
data	JSON
header	ContentType: application/json; charset=UTF-8
params	{       BaseRequest: { Uin: xxx, Sid: xxx, Skey: xxx, DeviceID: xxx },       SyncKey: xxx,       rr: 时间戳取反  }

返回数据(JSON):

{
    'BaseResponse': {'ErrMsg': '', 'Ret': 0},
    'SyncKey': {
        'Count': 7,
        'List': [
            {'Val': 636214192, 'Key': 1},
            ...
        ]
    },
    'ContinueFlag': 0,
    'AddMsgCount': 1,
    'AddMsgList': [
        {
            'FromUserName': '',
            'PlayLength': 0,
            'RecommendInfo': {...},
            'Content': "", 
            'StatusNotifyUserName': '',
            'StatusNotifyCode': 5,
            'Status': 3,
            'VoiceLength': 0,
            'ToUserName': '',
            'ForwardFlag': 0,
            'AppMsgType': 0,
            'AppInfo': {'Type': 0, 'AppID': ''},
            'Url': '',
            'ImgStatus': 1,
            'MsgType': 51,
            'ImgHeight': 0,
            'MediaId': '', 
            'FileName': '',
            'FileSize': '',
            ...
        },
        ...
    ],
    'ModChatRoomMemberCount': 0,
    'ModContactList': [],
    'DelContactList': [],
    'ModChatRoomMemberList': [],
    'DelContactCount': 0,
    ...
}

10. 发送消息（参考方法 webwxsendmsg）

API	webwxsendmsg
url	wx2.qq.com/cgi-bin/mmwebwx-bin/webwxsendmsg?pass_ticket=xxx
method	POST
data	JSON
header	ContentType: application/json; charset=UTF-8
params	{       BaseRequest: { Uin: xxx, Sid: xxx, Skey: xxx, DeviceID: xxx },       Msg: {           Type: 1 文字消息,           Content: 要发送的消息,           FromUserName: 自己的ID,           ToUserName: 好友的ID,           LocalID: 与clientMsgId相同,           ClientMsgId: 时间戳左移4位随后补上4位随机数       }  }

返回数据(JSON):

{
    "BaseResponse": {
        "Ret": 0,
        "ErrMsg": ""
    },
    ...
}

更多资料：
github.com/xiangzhai/qwx
github.com/Urinx/WeixinBot
www.07net01.com/2016/01/1201188.html
www.cnblogs.com/xiaozhi_5638/p/4923811.html

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