Browse Source

Format code and solve the dead cycle problem.

liuwons 9 years ago
parent
commit
e0fd2fc7fd
3 changed files with 751 additions and 703 deletions
  1. 8 0
      README.md
  2. 28 26
      test.py
  3. 715 677
      wxbot.py

+ 8 - 0
README.md

@@ -2,6 +2,14 @@
 
 
 Python包装Web微信实现的微信机器人框架。可以很容易地实现微信机器人。
 Python包装Web微信实现的微信机器人框架。可以很容易地实现微信机器人。
 
 
+Web微信协议参考资料:
+
+[挖掘微信Web版通信的全过程](http://www.tanhao.me/talk/1466.html/)
+
+[微信协议简单调研笔记](http://www.blogjava.net/yongboy/archive/2015/11/05/410636.html)
+
+[qwx: WeChat Qt frontend 微信Qt前端](https://github.com/xiangzhai/qwx)
+
 ## 环境与依赖
 ## 环境与依赖
 
 
 目前只能运行于Python 2环境 。
 目前只能运行于Python 2环境 。

+ 28 - 26
test.py

@@ -1,26 +1,28 @@
-#!/usr/bin/env python
-# coding: utf-8
-
-from wxbot import *
-
-
-class MyWXBot(WXBot):
-    def handle_msg_all(self, msg):
-        if msg['msg_type_id'] == 4 and msg['content']['type'] == 0:
-            self.send_msg_by_uid('hi', msg['user']['id'])
-'''
-    def schedule(self):
-        self.send_msg('tb', 'schedule')
-        time.sleep(1)
-'''
-
-
-def main():
-    bot = MyWXBot()
-    bot.DEBUG = True
-    bot.conf['qr'] = 'png'
-    bot.run()
-
-
-if __name__ == '__main__':
-    main()
+#!/usr/bin/env python
+# coding: utf-8
+
+from wxbot import *
+
+
+class MyWXBot(WXBot):
+    def handle_msg_all(self, msg):
+        if msg['msg_type_id'] == 4 and msg['content']['type'] == 0:
+            self.send_msg_by_uid('hi', msg['user']['id'])
+
+
+'''
+    def schedule(self):
+        self.send_msg('tb', 'schedule')
+        time.sleep(1)
+'''
+
+
+def main():
+    bot = MyWXBot()
+    bot.DEBUG = True
+    bot.conf['qr'] = 'png'
+    bot.run()
+
+
+if __name__ == '__main__':
+    main()

+ 715 - 677
wxbot.py

@@ -1,677 +1,715 @@
-#!/usr/bin/env python
-# coding: utf-8
-
-import pyqrcode
-import requests
-import json
-import xml.dom.minidom
-import urllib
-import time
-import re
-import random
-
-
-class WXBot:
-    def __init__(self):
-        self.DEBUG = False
-        self.uuid = ''
-        self.base_uri = ''
-        self.redirect_uri = ''
-        self.uin = ''
-        self.sid = ''
-        self.skey = ''
-        self.pass_ticket = ''
-        self.device_id = 'e' + repr(random.random())[2:17]
-        self.base_request = {}
-        self.sync_key_str = ''
-        self.sync_key = []
-        self.user = {}
-        self.account_info = {}
-        self.member_list = []   # all kind of accounts: contacts, public accounts, groups, special accounts
-        self.contact_list = []  # contact list
-        self.public_list = []   # public account list
-        self.group_list = []    # group chat list
-        self.special_list = []  # special list account
-        self.group_members = {}  # members of all groups
-        self.sync_host = ''
-        self.session = requests.Session()
-        self.session.headers.update({'User-Agent': 'Mozilla/5.0 (X11; Linux i686; U;) Gecko/20070322 Kazehakase/0.4.5'})
-
-        self.conf = {'qr': 'png'}
-
-    # Get information of all contacts of current account.
-    def get_contact(self):
-        url = self.base_uri + '/webwxgetcontact?pass_ticket=%s&skey=%s&r=%s' \
-                              % (self.pass_ticket, self.skey, int(time.time()))
-        r = self.session.post(url, data='{}')
-        r.encoding = 'utf-8'
-        if self.DEBUG:
-            with open('contacts.json', 'w') as f:
-                f.write(r.text.encode('utf-8'))
-        dic = json.loads(r.text)
-        self.member_list = dic['MemberList']
-
-        special_users = ['newsapp', 'fmessage', 'filehelper', 'weibo', 'qqmail',
-                         'fmessage', 'tmessage', 'qmessage', 'qqsync', 'floatbottle',
-                         'lbsapp', 'shakeapp', 'medianote', 'qqfriend', 'readerapp',
-                         'blogapp', 'facebookapp', 'masssendapp', 'meishiapp',
-                         'feedsapp', 'voip', 'blogappweixin', 'weixin', 'brandsessionholder',
-                         'weixinreminder', 'wxid_novlwrv3lqwv11', 'gh_22b87fa7cb3c',
-                         'officialaccounts', 'notification_messages', 'wxid_novlwrv3lqwv11',
-                         'gh_22b87fa7cb3c', 'wxitil', 'userexperience_alarm', 'notification_messages']
-
-        self.contact_list = []
-        self.public_list = []
-        self.special_list = []
-        self.group_list = []
-        for contact in self.member_list:
-            if contact['VerifyFlag'] & 8 != 0:  # public account
-                self.public_list.append(contact)
-                self.account_info[contact['UserName']] = {'type': 'public', 'info': contact}
-            elif contact['UserName'] in special_users:  # special account
-                self.special_list.append(contact)
-                self.account_info[contact['UserName']] = {'type': 'special', 'info': contact}
-            elif contact['UserName'].find('@@') != -1:  # group
-                self.group_list.append(contact)
-                self.account_info[contact['UserName']] = {'type': 'group', 'info': contact}
-            elif contact['UserName'] == self.user['UserName']:  # self
-                self.account_info[contact['UserName']] = {'type': 'self', 'info': contact}
-                pass
-            else:
-                self.contact_list.append(contact)
-
-        self.group_members = self.batch_get_group_members()
-
-        for group in self.group_members:
-            for member in self.group_members[group]:
-                if member['UserName'] not in self.account_info:
-                    self.account_info[member['UserName']] = {'type': 'group_member', 'info': member, 'group': group}
-
-        if self.DEBUG:
-            with open('contact_list.json', 'w') as f:
-                f.write(json.dumps(self.contact_list))
-            with open('special_list.json', 'w') as f:
-                f.write(json.dumps(self.special_list))
-            with open('group_list.json', 'w') as f:
-                f.write(json.dumps(self.group_list))
-            with open('public_list.json', 'w') as f:
-                f.write(json.dumps(self.public_list))
-            with open('member_list.json', 'w') as f:
-                f.write(json.dumps(self.member_list))
-            with open('group_users.json', 'w') as f:
-                f.write(json.dumps(self.group_members))
-            with open('account_info.json', 'w') as f:
-                f.write(json.dumps(self.account_info))
-        return True
-
-    # Get information of accounts in all groups at once.
-    def batch_get_group_members(self):
-        url = self.base_uri + '/webwxbatchgetcontact?type=ex&r=%s&pass_ticket=%s' % (int(time.time()), self.pass_ticket)
-        params = {
-            'BaseRequest': self.base_request,
-            "Count": len(self.group_list),
-            "List": [{"UserName": group['UserName'], "EncryChatRoomId":""} for group in self.group_list]
-        }
-        r = self.session.post(url, data=json.dumps(params))
-        r.encoding = 'utf-8'
-        dic = json.loads(r.text)
-        group_members = {}
-        for group in dic['ContactList']:
-            gid = group['UserName']
-            members = group['MemberList']
-            group_members[gid] = members
-        return group_members
-
-    def get_account_info(self, uid):
-        if uid in self.account_info:
-            return self.account_info[uid]
-        else:
-            return None
-
-    def get_account_name(self, uid):
-        info = self.get_account_info(uid)
-        if info is None:
-            return 'unknown'
-        info = info['info']
-        name = {}
-        if 'RemarkName' in info and info['RemarkName']:
-            name['remark_name'] = info['RemarkName']
-        if 'NickName' in info and info['NickName']:
-            name['nickname'] = info['NickName']
-        if 'DisplayName' in info and info['DisplayName']:
-            name['display_name'] = info['DisplayName']
-        return name
-
-    @staticmethod
-    def get_prefer_name(name):
-        if 'remark_name' in name:
-            return name['remark_name']
-        if 'display_name' in name:
-            return name['display_name']
-        if 'nickname' in name:
-            return name['nickname']
-        return 'unknown'
-
-    # Get the relationship of a account and current user.
-    def get_user_type(self, wx_user_id):
-        for account in self.contact_list:
-            if wx_user_id == account['UserName']:
-                return 'contact'
-        for account in self.public_list:
-            if wx_user_id == account['UserName']:
-                return 'public'
-        for account in self.special_list:
-            if wx_user_id == account['UserName']:
-                return 'special'
-        for account in self.group_list:
-            if wx_user_id == account['UserName']:
-                return 'group'
-        for group in self.group_members:
-            for member in self.group_members[group]:
-                if member['UserName'] == wx_user_id:
-                    return 'group_member'
-        return 'unknown'
-
-    def is_contact(self, uid):
-        for account in self.contact_list:
-            if uid == account['UserName']:
-                return True
-        return False
-
-    def is_public(self, uid):
-        for account in self.public_list:
-            if uid == account['UserName']:
-                return True
-        return False
-
-    def is_special(self, uid):
-        for account in self.special_list:
-            if uid == account['UserName']:
-                return True
-        return False
-
-    '''
-    msg:
-        msg_id
-        msg_type_id
-        user
-        content
-    '''
-    def handle_msg_all(self, msg):
-        pass
-
-    '''
-    content_type_id:
-        0 -> Text
-        1 -> Location
-        3 -> Image
-        4 -> Voice
-        5 -> Recommend
-        6 -> Animation
-        7 -> Share
-        8 -> Video
-        9 -> VideoCall
-        10 -> Redraw
-        11 -> Empty
-        99 -> Unknown
-    '''
-    def extract_msg_content(self, msg_type_id, msg):
-        mtype = msg['MsgType']
-        content = msg['Content'].replace('&lt;', '<').replace('&gt;', '>')
-        msg_id = msg['MsgId']
-
-        msg_content = {}
-        if msg_type_id == 0:
-            return {'type': 11, 'data': ''}
-        elif msg_type_id == 2:  # File Helper
-            return {'type': 0, 'data': content.replace('<br/>', '\n')}
-        elif msg_type_id == 3:  # Group
-            sp = content.find('<br/>')
-            uid = content[:sp]
-            content = content[sp:]
-            content = content.replace('<br/>', '')
-            uid = uid[:-1]
-            msg_content['user'] = {'id': uid, 'name': self.get_prefer_name(self.get_account_name(uid))}
-            if self.DEBUG:
-                print msg_content['user']['name']
-        else:                   # Self, Contact, Special, Public, Unknown
-            pass
-
-        if mtype == 1:
-            if content.find('http://weixin.qq.com/cgi-bin/redirectforward?args=') != -1:
-                r = self.session.get(content)
-                r.encoding = 'gbk'
-                data = r.text
-                pos = self.search_content('title', data, 'xml')
-                msg_content['type'] = 1
-                msg_content['data'] = pos
-                msg_content['detail'] = data
-                if self.DEBUG:
-                    print '    [Location] I am at %s ' % pos
-            else:
-                msg_content['type'] = 0
-                msg_content['data'] = content.replace(u'\u2005', '')
-                if self.DEBUG:
-                    print '    [Text] %s' % msg_content['data']
-        elif mtype == 3:
-            msg_content['type'] = 3
-            msg_content['data'] = self.get_msg_img_url(msg_id)
-            if self.DEBUG:
-                image = self.get_msg_img(msg_id)
-                print '    [Image] %s' % image
-        elif mtype == 34:
-            msg_content['type'] = 4
-            msg_content['data'] = self.get_voice_url(msg_id)
-            if self.DEBUG:
-                voice = self.get_voice(msg_id)
-                print '    [Voice] %s' % voice
-        elif mtype == 42:
-            msg_content['type'] = 5
-            info = msg['RecommendInfo']
-            msg_content['data'] = {'nickname': info['NickName'],
-                                   'alias': info['Alias'],
-                                   'province': info['Province'],
-                                   'city': info['City'],
-                                   'gender': ['unknown', 'male', 'female'][info['Sex']]}
-            if self.DEBUG:
-                print '    [Recommend]'
-                print '    -----------------------------'
-                print '    | NickName: %s' % info['NickName']
-                print '    | Alias: %s' % info['Alias']
-                print '    | Local: %s %s' % (info['Province'], info['City'])
-                print '    | Gender: %s' % ['unknown', 'male', 'female'][info['Sex']]
-                print '    -----------------------------'
-        elif mtype == 47:
-            msg_content['type'] = 6
-            msg_content['data'] = self.search_content('cdnurl', content)
-            if self.DEBUG:
-                print '    [Animation] %s' % msg_content['data']
-        elif mtype == 49:
-            msg_content['type'] = 7
-            app_msg_type = ''
-            if msg['AppMsgType'] == 3:
-                app_msg_type = 'music'
-            elif msg['AppMsgType'] == 5:
-                app_msg_type = 'link'
-            elif msg['AppMsgType'] == 7:
-                app_msg_type = 'weibo'
-            else:
-                app_msg_type = 'unknown'
-            msg_content['data'] = {'type': app_msg_type,
-                                   'title': msg['FileName'],
-                                   'desc': self.search_content('des', content, 'xml'),
-                                   'url': msg['Url'],
-                                   'from': self.search_content('appname', content, 'xml')}
-            if self.DEBUG:
-                print '    [Share] %s' % app_msg_type
-                print '    --------------------------'
-                print '    | title: %s' % msg['FileName']
-                print '    | desc: %s' % self.search_content('des', content, 'xml')
-                print '    | link: %s' % msg['Url']
-                print '    | from: %s' % self.search_content('appname', content, 'xml')
-                print '    --------------------------'
-
-        elif mtype == 62:
-            msg_content['type'] = 8
-            msg_content['data'] = content
-            if self.DEBUG:
-                print '    [Video] Please check on mobiles'
-        elif mtype == 53:
-            msg_content['type'] = 9
-            msg_content['data'] = content
-            if self.DEBUG:
-                print '    [Video Call]'
-        elif mtype == 10002:
-            msg_content['type'] = 10
-            msg_content['data'] = content
-            if self.DEBUG:
-                print '    [Redraw]'
-        else:
-            msg_content['type'] = 99
-            msg_content['data'] = content
-            if self.DEBUG:
-                print '    [Unknown]'
-        return msg_content
-
-    '''
-    msg_type_id:
-        0 -> Init
-        1 -> Self
-        2 -> FileHelper
-        3 -> Group
-        4 -> Contact
-        5 -> Public
-        6 -> Special
-        99 -> Unknown
-    '''
-    def handle_msg(self, r):
-        for msg in r['AddMsgList']:
-            msg_type_id = 99
-            user = {'id': msg['FromUserName']}
-            if msg['MsgType'] == 51:  # init message
-                msg_type_id = 0
-            elif msg['FromUserName'] == self.user['UserName']:  # Self
-                msg_type_id = 1
-                user['name'] = 'self'
-            elif msg['ToUserName'] == 'filehelper':  # File Helper
-                msg_type_id = 2
-                user['name'] = 'file_helper'
-            elif msg['FromUserName'][:2] == '@@':  # Group
-                msg_type_id = 3
-                user['name'] = self.get_prefer_name(self.get_account_name(user['id']))
-            elif self.is_contact(msg['FromUserName']):  # Contact
-                msg_type_id = 4
-                user['name'] = self.get_prefer_name(self.get_account_name(user['id']))
-            elif self.is_public(msg['FromUserName']):  # Public
-                msg_type_id = 5
-                user['name'] = self.get_prefer_name(self.get_account_name(user['id']))
-            elif self.is_special(msg['FromUserName']):  # Special
-                msg_type_id = 6
-                user['name'] = self.get_prefer_name(self.get_account_name(user['id']))
-
-            if self.DEBUG and msg_type_id != 0:
-                print '[MSG] %s:' % user['name']
-            content = self.extract_msg_content(msg_type_id, msg)
-            message = {'msg_type_id': msg_type_id,
-                       'msg_id': msg['MsgId'],
-                       'content': content,
-                       'user': user}
-            self.handle_msg_all(message)
-
-    def schedule(self):
-        pass
-
-    def proc_msg(self):
-        self.test_sync_check()
-        while True:
-            [retcode, selector] = self.sync_check()
-            if retcode == '1100':  # User have login on mobile
-                pass
-            elif retcode == '0':
-                if selector == '2':
-                    r = self.sync()
-                    if r is not None:
-                        self.handle_msg(r)
-                elif selector == '7':  # Play WeChat on mobile
-                    r = self.sync()
-                    if r is not None:
-                        self.handle_msg(r)
-                elif selector == '0':
-                    time.sleep(1)
-            self.schedule()
-
-    def send_msg_by_uid(self, word, dst='filehelper'):
-        url = self.base_uri + '/webwxsendmsg?pass_ticket=%s' % self.pass_ticket
-        msg_id = str(int(time.time()*1000)) + str(random.random())[:5].replace('.', '')
-        if type(word) == 'str':
-            word = word.decode('utf-8')
-        params = {
-            'BaseRequest': self.base_request,
-            'Msg': {
-                "Type": 1,
-                "Content": word,
-                "FromUserName": self.user['UserName'],
-                "ToUserName": dst,
-                "LocalID": msg_id,
-                "ClientMsgId": msg_id
-            }
-        }
-        headers = {'content-type': 'application/json; charset=UTF-8'}
-        data = json.dumps(params, ensure_ascii=False).encode('utf8')
-        r = self.session.post(url, data=data, headers=headers)
-        dic = r.json()
-        return dic['BaseResponse']['Ret'] == 0
-
-    def send_msg(self, name, word, isfile=False):
-        uid = self.get_user_id(name)
-        if uid:
-            if isfile:
-                with open(word, 'r') as f:
-                    result = True
-                    for line in f.readlines():
-                        line = line.replace('\n', '')
-                        print '-> '+name+': '+line
-                        if self.send_msg_by_uid(line, uid):
-                            pass
-                        else:
-                            result = False
-                        time.sleep(1)
-                    return result
-            else:
-                if self.send_msg_by_uid(word, uid):
-                    return True
-                else:
-                    return False
-        else:
-            if self.DEBUG:
-                print '[ERROR] This user does not exist .'
-            return True
-
-    @staticmethod
-    def search_content(key, content, fmat='attr'):
-        if fmat == 'attr':
-            pm = re.search(key+'\s?=\s?"([^"<]+)"', content)
-            if pm:
-                return pm.group(1)
-        elif fmat == 'xml':
-            pm = re.search('<{0}>([^<]+)</{0}>'.format(key), content)
-            if pm:
-                return pm.group(1)
-        return 'unknown'
-
-    def run(self):
-        self.get_uuid()
-        self.gen_qr_code('qr.png')
-        print '[INFO] Please use WeCaht to scan the QR code .'
-        self.wait4login(1)
-        print '[INFO] Please confirm to login .'
-        self.wait4login(0)
-        if self.login():
-            print '[INFO] Web WeChat login succeed .'
-        else:
-            print '[ERROR] Web WeChat login failed .'
-            return
-        if self.init():
-            print '[INFO] Web WeChat init succeed .'
-        else:
-            print '[INFO] Web WeChat init failed'
-            return
-        self.status_notify()
-        self.get_contact()
-        print '[INFO] Get %d contacts' % len(self.contact_list)
-        print '[INFO] Start to process messages .'
-        self.proc_msg()
-
-    def get_uuid(self):
-        url = 'https://login.weixin.qq.com/jslogin'
-        params = {
-            'appid': 'wx782c26e4c19acffb',
-            'fun': 'new',
-            'lang': 'zh_CN',
-            '_': int(time.time())*1000 + random.randint(1, 999),
-        }
-        r = self.session.get(url, params=params)
-        r.encoding = 'utf-8'
-        data = r.text
-        regx = r'window.QRLogin.code = (\d+); window.QRLogin.uuid = "(\S+?)"'
-        pm = re.search(regx, data)
-        if pm:
-            code = pm.group(1)
-            self.uuid = pm.group(2)
-            return code == '200'
-        return False
-
-    def gen_qr_code(self, qr_file_path):
-        string = 'https://login.weixin.qq.com/l/' + self.uuid
-        qr = pyqrcode.create(string)
-        if self.conf['qr'] == 'png':
-            qr.png(qr_file_path)
-        elif self.conf['qr'] == 'tty':
-            print(qr.terminal(quiet_zone=1))
-
-    def wait4login(self, tip):
-        time.sleep(tip)
-        url = 'https://login.weixin.qq.com/cgi-bin/mmwebwx-bin/login?tip=%s&uuid=%s&_=%s' \
-              % (tip, self.uuid, int(time.time()))
-        r = self.session.get(url)
-        r.encoding = 'utf-8'
-        data = r.text
-        param = re.search(r'window.code=(\d+);', data)
-        code = param.group(1)
-
-        if code == '201':
-            return True
-        elif code == '200':
-            param = re.search(r'window.redirect_uri="(\S+?)";', data)
-            redirect_uri = param.group(1) + '&fun=new'
-            self.redirect_uri = redirect_uri
-            self.base_uri = redirect_uri[:redirect_uri.rfind('/')]
-            return True
-        elif code == '408':
-            print '[ERROR] WeChat login timeout .'
-        else:
-            print '[ERROR] WeChat login exception .'
-        return False
-
-    def login(self):
-        r = self.session.get(self.redirect_uri)
-        r.encoding = 'utf-8'
-        data = r.text
-        doc = xml.dom.minidom.parseString(data)
-        root = doc.documentElement
-
-        for node in root.childNodes:
-            if node.nodeName == 'skey':
-                self.skey = node.childNodes[0].data
-            elif node.nodeName == 'wxsid':
-                self.sid = node.childNodes[0].data
-            elif node.nodeName == 'wxuin':
-                self.uin = node.childNodes[0].data
-            elif node.nodeName == 'pass_ticket':
-                self.pass_ticket = node.childNodes[0].data
-
-        if '' in (self.skey, self.sid, self.uin, self.pass_ticket):
-            return False
-
-        self.base_request = {
-            'Uin': self.uin,
-            'Sid': self.sid,
-            'Skey': self.skey,
-            'DeviceID': self.device_id,
-            }
-        return True
-
-    def init(self):
-        url = self.base_uri + '/webwxinit?r=%i&lang=en_US&pass_ticket=%s' % (int(time.time()), self.pass_ticket)
-        params = {
-            'BaseRequest': self.base_request
-        }
-        r = self.session.post(url, data=json.dumps(params))
-        r.encoding = 'utf-8'
-        dic = json.loads(r.text)
-        self.sync_key = dic['SyncKey']
-        self.user = dic['User']
-        self.sync_key_str = '|'.join([str(keyVal['Key']) + '_' + str(keyVal['Val'])
-                                      for keyVal in self.sync_key['List']])
-        return dic['BaseResponse']['Ret'] == 0
-
-    def status_notify(self):
-        url = self.base_uri + '/webwxstatusnotify?lang=zh_CN&pass_ticket=%s' % self.pass_ticket
-        self.base_request['Uin'] = int(self.base_request['Uin'])
-        params = {
-            'BaseRequest': self.base_request,
-            "Code": 3,
-            "FromUserName": self.user['UserName'],
-            "ToUserName": self.user['UserName'],
-            "ClientMsgId": int(time.time())
-        }
-        r = self.session.post(url, data=json.dumps(params))
-        r.encoding = 'utf-8'
-        dic = json.loads(r.text)
-        return dic['BaseResponse']['Ret'] == 0
-
-    def test_sync_check(self):
-        for host in ['webpush', 'webpush2']:
-            self.sync_host = host
-            retcode = self.sync_check()[0]
-            if retcode == '0':
-                return True
-        return False
-
-    def sync_check(self):
-        params = {
-            'r': int(time.time()),
-            'sid': self.sid,
-            'uin': self.uin,
-            'skey': self.skey,
-            'deviceid': self.device_id,
-            'synckey': self.sync_key_str,
-            '_': int(time.time()),
-        }
-        url = 'https://' + self.sync_host + '.weixin.qq.com/cgi-bin/mmwebwx-bin/synccheck?' + urllib.urlencode(params)
-        r = self.session.get(url)
-        r.encoding = 'utf-8'
-        data = r.text
-        pm = re.search(r'window.synccheck=\{retcode:"(\d+)",selector:"(\d+)"\}', data)
-        retcode = pm.group(1)
-        selector = pm.group(2)
-        return [retcode, selector]
-
-    def sync(self):
-        url = self.base_uri + '/webwxsync?sid=%s&skey=%s&lang=en_US&pass_ticket=%s' \
-                              % (self.sid, self.skey, self.pass_ticket)
-        params = {
-            'BaseRequest': self.base_request,
-            'SyncKey': self.sync_key,
-            'rr': ~int(time.time())
-        }
-        r = self.session.post(url, data=json.dumps(params))
-        r.encoding = 'utf-8'
-        dic = json.loads(r.text)
-        if dic['BaseResponse']['Ret'] == 0:
-            self.sync_key = dic['SyncKey']
-            self.sync_key_str = '|'.join([str(keyVal['Key']) + '_' + str(keyVal['Val'])
-                                          for keyVal in self.sync_key['List']])
-        return dic
-
-    def get_icon(self, uid):
-        url = self.base_uri + '/webwxgeticon?username=%s&skey=%s' % (uid, self.skey)
-        r = self.session.get(url)
-        data = r.content
-        fn = 'img_'+uid+'.jpg'
-        with open(fn, 'wb') as f:
-            f.write(data)
-        return fn
-
-    def get_head_img(self, uid):
-        url = self.base_uri + '/webwxgetheadimg?username=%s&skey=%s' % (uid, self.skey)
-        r = self.session.get(url)
-        data = r.content
-        fn = 'img_'+uid+'.jpg'
-        with open(fn, 'wb') as f:
-            f.write(data)
-        return fn
-
-    def get_msg_img_url(self, msgid):
-        return self.base_uri + '/webwxgetmsgimg?MsgID=%s&skey=%s' % (msgid, self.skey)
-
-    def get_msg_img(self, msgid):
-        url = self.base_uri + '/webwxgetmsgimg?MsgID=%s&skey=%s' % (msgid, self.skey)
-        r = self.session.get(url)
-        data = r.content
-        fn = 'img_'+msgid+'.jpg'
-        with open(fn, 'wb') as f:
-            f.write(data)
-        return fn
-
-    def get_voice_url(self, msgid):
-        return self.base_uri + '/webwxgetvoice?msgid=%s&skey=%s' % (msgid, self.skey)
-
-    def get_voice(self, msgid):
-        url = self.base_uri + '/webwxgetvoice?msgid=%s&skey=%s' % (msgid, self.skey)
-        r = self.session.get(url)
-        data = r.content
-        fn = 'voice_'+msgid+'.mp3'
-        with open(fn, 'wb') as f:
-            f.write(data)
-        return fn
+#!/usr/bin/env python
+# coding: utf-8
+
+import pyqrcode
+import requests
+import json
+import xml.dom.minidom
+import urllib
+import time
+import re
+import random
+from requests.exceptions import *
+
+
+class WXBot:
+    """WXBot, a framework to process WeChat messages"""
+
+    def __init__(self):
+        self.DEBUG = False
+        self.uuid = ''
+        self.base_uri = ''
+        self.redirect_uri = ''
+        self.uin = ''
+        self.sid = ''
+        self.skey = ''
+        self.pass_ticket = ''
+        self.device_id = 'e' + repr(random.random())[2:17]
+        self.base_request = {}
+        self.sync_key_str = ''
+        self.sync_key = []
+        self.user = {}
+        self.account_info = {}
+        self.member_list = []  # all kind of accounts: contacts, public accounts, groups, special accounts
+        self.contact_list = []  # contact list
+        self.public_list = []  # public account list
+        self.group_list = []  # group chat list
+        self.special_list = []  # special list account
+        self.group_members = {}  # members of all groups
+        self.sync_host = ''
+        self.session = requests.Session()
+        self.session.headers.update({'User-Agent': 'Mozilla/5.0 (X11; Linux i686; U;) Gecko/20070322 Kazehakase/0.4.5'})
+        self.conf = {'qr': 'png'}
+
+    def get_contact(self):
+        """Get information of all contacts of current account."""
+        url = self.base_uri + '/webwxgetcontact?pass_ticket=%s&skey=%s&r=%s' \
+                              % (self.pass_ticket, self.skey, int(time.time()))
+        r = self.session.post(url, data='{}')
+        r.encoding = 'utf-8'
+        if self.DEBUG:
+            with open('contacts.json', 'w') as f:
+                f.write(r.text.encode('utf-8'))
+        dic = json.loads(r.text)
+        self.member_list = dic['MemberList']
+
+        special_users = ['newsapp', 'fmessage', 'filehelper', 'weibo', 'qqmail',
+                         'fmessage', 'tmessage', 'qmessage', 'qqsync', 'floatbottle',
+                         'lbsapp', 'shakeapp', 'medianote', 'qqfriend', 'readerapp',
+                         'blogapp', 'facebookapp', 'masssendapp', 'meishiapp',
+                         'feedsapp', 'voip', 'blogappweixin', 'weixin', 'brandsessionholder',
+                         'weixinreminder', 'wxid_novlwrv3lqwv11', 'gh_22b87fa7cb3c',
+                         'officialaccounts', 'notification_messages', 'wxid_novlwrv3lqwv11',
+                         'gh_22b87fa7cb3c', 'wxitil', 'userexperience_alarm', 'notification_messages']
+
+        self.contact_list = []
+        self.public_list = []
+        self.special_list = []
+        self.group_list = []
+        for contact in self.member_list:
+            if contact['VerifyFlag'] & 8 != 0:  # public account
+                self.public_list.append(contact)
+                self.account_info[contact['UserName']] = {'type': 'public', 'info': contact}
+            elif contact['UserName'] in special_users:  # special account
+                self.special_list.append(contact)
+                self.account_info[contact['UserName']] = {'type': 'special', 'info': contact}
+            elif contact['UserName'].find('@@') != -1:  # group
+                self.group_list.append(contact)
+                self.account_info[contact['UserName']] = {'type': 'group', 'info': contact}
+            elif contact['UserName'] == self.user['UserName']:  # self
+                self.account_info[contact['UserName']] = {'type': 'self', 'info': contact}
+                pass
+            else:
+                self.contact_list.append(contact)
+
+        self.group_members = self.batch_get_group_members()
+
+        for group in self.group_members:
+            for member in self.group_members[group]:
+                if member['UserName'] not in self.account_info:
+                    self.account_info[member['UserName']] = {'type': 'group_member', 'info': member, 'group': group}
+
+        if self.DEBUG:
+            with open('contact_list.json', 'w') as f:
+                f.write(json.dumps(self.contact_list))
+            with open('special_list.json', 'w') as f:
+                f.write(json.dumps(self.special_list))
+            with open('group_list.json', 'w') as f:
+                f.write(json.dumps(self.group_list))
+            with open('public_list.json', 'w') as f:
+                f.write(json.dumps(self.public_list))
+            with open('member_list.json', 'w') as f:
+                f.write(json.dumps(self.member_list))
+            with open('group_users.json', 'w') as f:
+                f.write(json.dumps(self.group_members))
+            with open('account_info.json', 'w') as f:
+                f.write(json.dumps(self.account_info))
+        return True
+
+    def batch_get_group_members(self):
+        """Get information of accounts in all groups at once."""
+        url = self.base_uri + '/webwxbatchgetcontact?type=ex&r=%s&pass_ticket=%s' % (int(time.time()), self.pass_ticket)
+        params = {
+            'BaseRequest': self.base_request,
+            "Count": len(self.group_list),
+            "List": [{"UserName": group['UserName'], "EncryChatRoomId": ""} for group in self.group_list]
+        }
+        r = self.session.post(url, data=json.dumps(params))
+        r.encoding = 'utf-8'
+        dic = json.loads(r.text)
+        group_members = {}
+        for group in dic['ContactList']:
+            gid = group['UserName']
+            members = group['MemberList']
+            group_members[gid] = members
+        return group_members
+
+    def get_account_info(self, uid):
+        if uid in self.account_info:
+            return self.account_info[uid]
+        else:
+            return None
+
+    def get_account_name(self, uid):
+        info = self.get_account_info(uid)
+        if info is None:
+            return 'unknown'
+        info = info['info']
+        name = {}
+        if 'RemarkName' in info and info['RemarkName']:
+            name['remark_name'] = info['RemarkName']
+        if 'NickName' in info and info['NickName']:
+            name['nickname'] = info['NickName']
+        if 'DisplayName' in info and info['DisplayName']:
+            name['display_name'] = info['DisplayName']
+        return name
+
+    @staticmethod
+    def get_prefer_name(name):
+        if 'remark_name' in name:
+            return name['remark_name']
+        if 'display_name' in name:
+            return name['display_name']
+        if 'nickname' in name:
+            return name['nickname']
+        return 'unknown'
+
+    def get_user_type(self, wx_user_id):
+        """
+        Get the relationship of a account and current user.
+        :param wx_user_id:
+        :return: The type of the account.
+        """
+        for account in self.contact_list:
+            if wx_user_id == account['UserName']:
+                return 'contact'
+        for account in self.public_list:
+            if wx_user_id == account['UserName']:
+                return 'public'
+        for account in self.special_list:
+            if wx_user_id == account['UserName']:
+                return 'special'
+        for account in self.group_list:
+            if wx_user_id == account['UserName']:
+                return 'group'
+        for group in self.group_members:
+            for member in self.group_members[group]:
+                if member['UserName'] == wx_user_id:
+                    return 'group_member'
+        return 'unknown'
+
+    def is_contact(self, uid):
+        for account in self.contact_list:
+            if uid == account['UserName']:
+                return True
+        return False
+
+    def is_public(self, uid):
+        for account in self.public_list:
+            if uid == account['UserName']:
+                return True
+        return False
+
+    def is_special(self, uid):
+        for account in self.special_list:
+            if uid == account['UserName']:
+                return True
+        return False
+
+    def handle_msg_all(self, msg):
+        """
+        The function to process all WeChat messages, please override this function.
+        msg:
+            msg_id  ->  id of the received WeChat message
+            msg_type_id  ->  the type of the message
+            user  ->  the account that the message if sent from
+            content  ->  content of the message
+        :param msg: The received message.
+        :return: None
+        """
+        pass
+
+    def extract_msg_content(self, msg_type_id, msg):
+        """
+        content_type_id:
+            0 -> Text
+            1 -> Location
+            3 -> Image
+            4 -> Voice
+            5 -> Recommend
+            6 -> Animation
+            7 -> Share
+            8 -> Video
+            9 -> VideoCall
+            10 -> Redraw
+            11 -> Empty
+            99 -> Unknown
+        :param msg_type_id: The type of the received message.
+        :param msg: The received message.
+        :return: The extracted content of the message.
+        """
+        mtype = msg['MsgType']
+        content = msg['Content'].replace('&lt;', '<').replace('&gt;', '>')
+        msg_id = msg['MsgId']
+
+        msg_content = {}
+        if msg_type_id == 0:
+            return {'type': 11, 'data': ''}
+        elif msg_type_id == 2:  # File Helper
+            return {'type': 0, 'data': content.replace('<br/>', '\n')}
+        elif msg_type_id == 3:  # Group
+            sp = content.find('<br/>')
+            uid = content[:sp]
+            content = content[sp:]
+            content = content.replace('<br/>', '')
+            uid = uid[:-1]
+            msg_content['user'] = {'id': uid, 'name': self.get_prefer_name(self.get_account_name(uid))}
+            if self.DEBUG:
+                print msg_content['user']['name']
+        else:  # Self, Contact, Special, Public, Unknown
+            pass
+
+        if mtype == 1:
+            if content.find('http://weixin.qq.com/cgi-bin/redirectforward?args=') != -1:
+                r = self.session.get(content)
+                r.encoding = 'gbk'
+                data = r.text
+                pos = self.search_content('title', data, 'xml')
+                msg_content['type'] = 1
+                msg_content['data'] = pos
+                msg_content['detail'] = data
+                if self.DEBUG:
+                    print '    [Location] I am at %s ' % pos
+            else:
+                msg_content['type'] = 0
+                msg_content['data'] = content.replace(u'\u2005', '')
+                if self.DEBUG:
+                    print '    [Text] %s' % msg_content['data']
+        elif mtype == 3:
+            msg_content['type'] = 3
+            msg_content['data'] = self.get_msg_img_url(msg_id)
+            if self.DEBUG:
+                image = self.get_msg_img(msg_id)
+                print '    [Image] %s' % image
+        elif mtype == 34:
+            msg_content['type'] = 4
+            msg_content['data'] = self.get_voice_url(msg_id)
+            if self.DEBUG:
+                voice = self.get_voice(msg_id)
+                print '    [Voice] %s' % voice
+        elif mtype == 42:
+            msg_content['type'] = 5
+            info = msg['RecommendInfo']
+            msg_content['data'] = {'nickname': info['NickName'],
+                                   'alias': info['Alias'],
+                                   'province': info['Province'],
+                                   'city': info['City'],
+                                   'gender': ['unknown', 'male', 'female'][info['Sex']]}
+            if self.DEBUG:
+                print '    [Recommend]'
+                print '    -----------------------------'
+                print '    | NickName: %s' % info['NickName']
+                print '    | Alias: %s' % info['Alias']
+                print '    | Local: %s %s' % (info['Province'], info['City'])
+                print '    | Gender: %s' % ['unknown', 'male', 'female'][info['Sex']]
+                print '    -----------------------------'
+        elif mtype == 47:
+            msg_content['type'] = 6
+            msg_content['data'] = self.search_content('cdnurl', content)
+            if self.DEBUG:
+                print '    [Animation] %s' % msg_content['data']
+        elif mtype == 49:
+            msg_content['type'] = 7
+            app_msg_type = ''
+            if msg['AppMsgType'] == 3:
+                app_msg_type = 'music'
+            elif msg['AppMsgType'] == 5:
+                app_msg_type = 'link'
+            elif msg['AppMsgType'] == 7:
+                app_msg_type = 'weibo'
+            else:
+                app_msg_type = 'unknown'
+            msg_content['data'] = {'type': app_msg_type,
+                                   'title': msg['FileName'],
+                                   'desc': self.search_content('des', content, 'xml'),
+                                   'url': msg['Url'],
+                                   'from': self.search_content('appname', content, 'xml')}
+            if self.DEBUG:
+                print '    [Share] %s' % app_msg_type
+                print '    --------------------------'
+                print '    | title: %s' % msg['FileName']
+                print '    | desc: %s' % self.search_content('des', content, 'xml')
+                print '    | link: %s' % msg['Url']
+                print '    | from: %s' % self.search_content('appname', content, 'xml')
+                print '    --------------------------'
+
+        elif mtype == 62:
+            msg_content['type'] = 8
+            msg_content['data'] = content
+            if self.DEBUG:
+                print '    [Video] Please check on mobiles'
+        elif mtype == 53:
+            msg_content['type'] = 9
+            msg_content['data'] = content
+            if self.DEBUG:
+                print '    [Video Call]'
+        elif mtype == 10002:
+            msg_content['type'] = 10
+            msg_content['data'] = content
+            if self.DEBUG:
+                print '    [Redraw]'
+        else:
+            msg_content['type'] = 99
+            msg_content['data'] = content
+            if self.DEBUG:
+                print '    [Unknown]'
+        return msg_content
+
+    def handle_msg(self, r):
+        """
+        The inner function that processes raw WeChat messages.
+        msg_type_id:
+            0 -> Init
+            1 -> Self
+            2 -> FileHelper
+            3 -> Group
+            4 -> Contact
+            5 -> Public
+            6 -> Special
+            99 -> Unknown
+        :param r: The raw data of the messages.
+        :return: None
+        """
+        for msg in r['AddMsgList']:
+            msg_type_id = 99
+            user = {'id': msg['FromUserName']}
+            if msg['MsgType'] == 51:  # init message
+                msg_type_id = 0
+            elif msg['FromUserName'] == self.user['UserName']:  # Self
+                msg_type_id = 1
+                user['name'] = 'self'
+            elif msg['ToUserName'] == 'filehelper':  # File Helper
+                msg_type_id = 2
+                user['name'] = 'file_helper'
+            elif msg['FromUserName'][:2] == '@@':  # Group
+                msg_type_id = 3
+                user['name'] = self.get_prefer_name(self.get_account_name(user['id']))
+            elif self.is_contact(msg['FromUserName']):  # Contact
+                msg_type_id = 4
+                user['name'] = self.get_prefer_name(self.get_account_name(user['id']))
+            elif self.is_public(msg['FromUserName']):  # Public
+                msg_type_id = 5
+                user['name'] = self.get_prefer_name(self.get_account_name(user['id']))
+            elif self.is_special(msg['FromUserName']):  # Special
+                msg_type_id = 6
+                user['name'] = self.get_prefer_name(self.get_account_name(user['id']))
+
+            if self.DEBUG and msg_type_id != 0:
+                print '[MSG] %s:' % user['name']
+            content = self.extract_msg_content(msg_type_id, msg)
+            message = {'msg_type_id': msg_type_id,
+                       'msg_id': msg['MsgId'],
+                       'content': content,
+                       'user': user}
+            self.handle_msg_all(message)
+
+    def schedule(self):
+        """
+        The function to do schedule works.
+        This function will be called a lot of times.
+        Please override this if needed.
+        :return: None
+        """
+        pass
+
+    def proc_msg(self):
+        self.test_sync_check()
+        while True:
+            check_time = time.time()
+            [retcode, selector] = self.sync_check()
+            if retcode == '1100':  # logout from mobile
+                break
+            elif retcode == '1101':  # login web WeChat from other devide
+                break
+            elif retcode == '0':
+                if selector == '2':  # new message
+                    r = self.sync()
+                    if r is not None:
+                        self.handle_msg(r)
+                elif selector == '7':  # Play WeChat on mobile
+                    r = self.sync()
+                    if r is not None:
+                        self.handle_msg(r)
+                elif selector == '0':  # nothing
+                    pass
+                else:
+                    pass
+            self.schedule()
+            check_time = time.time() - check_time
+            if check_time < 0.5:
+                time.sleep(0.5 - check_time)
+
+    def send_msg_by_uid(self, word, dst='filehelper'):
+        url = self.base_uri + '/webwxsendmsg?pass_ticket=%s' % self.pass_ticket
+        msg_id = str(int(time.time() * 1000)) + str(random.random())[:5].replace('.', '')
+        if type(word) == 'str':
+            word = word.decode('utf-8')
+        params = {
+            'BaseRequest': self.base_request,
+            'Msg': {
+                "Type": 1,
+                "Content": word,
+                "FromUserName": self.user['UserName'],
+                "ToUserName": dst,
+                "LocalID": msg_id,
+                "ClientMsgId": msg_id
+            }
+        }
+        headers = {'content-type': 'application/json; charset=UTF-8'}
+        data = json.dumps(params, ensure_ascii=False).encode('utf8')
+        try:
+            r = self.session.post(url, data=data, headers=headers)
+        except (ConnectionError, ReadTimeout):
+            return False
+        dic = r.json()
+        return dic['BaseResponse']['Ret'] == 0
+
+    def send_msg(self, name, word, isfile=False):
+        uid = self.get_user_id(name)
+        if uid:
+            if isfile:
+                with open(word, 'r') as f:
+                    result = True
+                    for line in f.readlines():
+                        line = line.replace('\n', '')
+                        print '-> ' + name + ': ' + line
+                        if self.send_msg_by_uid(line, uid):
+                            pass
+                        else:
+                            result = False
+                        time.sleep(1)
+                    return result
+            else:
+                if self.send_msg_by_uid(word, uid):
+                    return True
+                else:
+                    return False
+        else:
+            if self.DEBUG:
+                print '[ERROR] This user does not exist .'
+            return True
+
+    @staticmethod
+    def search_content(key, content, fmat='attr'):
+        if fmat == 'attr':
+            pm = re.search(key + '\s?=\s?"([^"<]+)"', content)
+            if pm:
+                return pm.group(1)
+        elif fmat == 'xml':
+            pm = re.search('<{0}>([^<]+)</{0}>'.format(key), content)
+            if pm:
+                return pm.group(1)
+        return 'unknown'
+
+    def run(self):
+        self.get_uuid()
+        self.gen_qr_code('qr.png')
+        print '[INFO] Please use WeCaht to scan the QR code .'
+        self.wait4login(1)
+        print '[INFO] Please confirm to login .'
+        self.wait4login(0)
+        if self.login():
+            print '[INFO] Web WeChat login succeed .'
+        else:
+            print '[ERROR] Web WeChat login failed .'
+            return
+        if self.init():
+            print '[INFO] Web WeChat init succeed .'
+        else:
+            print '[INFO] Web WeChat init failed'
+            return
+        self.status_notify()
+        self.get_contact()
+        print '[INFO] Get %d contacts' % len(self.contact_list)
+        print '[INFO] Start to process messages .'
+        self.proc_msg()
+
+    def get_uuid(self):
+        url = 'https://login.weixin.qq.com/jslogin'
+        params = {
+            'appid': 'wx782c26e4c19acffb',
+            'fun': 'new',
+            'lang': 'zh_CN',
+            '_': int(time.time()) * 1000 + random.randint(1, 999),
+        }
+        r = self.session.get(url, params=params)
+        r.encoding = 'utf-8'
+        data = r.text
+        regx = r'window.QRLogin.code = (\d+); window.QRLogin.uuid = "(\S+?)"'
+        pm = re.search(regx, data)
+        if pm:
+            code = pm.group(1)
+            self.uuid = pm.group(2)
+            return code == '200'
+        return False
+
+    def gen_qr_code(self, qr_file_path):
+        string = 'https://login.weixin.qq.com/l/' + self.uuid
+        qr = pyqrcode.create(string)
+        if self.conf['qr'] == 'png':
+            qr.png(qr_file_path)
+        elif self.conf['qr'] == 'tty':
+            print(qr.terminal(quiet_zone=1))
+
+    def wait4login(self, tip):
+        time.sleep(tip)
+        url = 'https://login.weixin.qq.com/cgi-bin/mmwebwx-bin/login?tip=%s&uuid=%s&_=%s' \
+              % (tip, self.uuid, int(time.time()))
+        r = self.session.get(url)
+        r.encoding = 'utf-8'
+        data = r.text
+        param = re.search(r'window.code=(\d+);', data)
+        code = param.group(1)
+
+        if code == '201':
+            return True
+        elif code == '200':
+            param = re.search(r'window.redirect_uri="(\S+?)";', data)
+            redirect_uri = param.group(1) + '&fun=new'
+            self.redirect_uri = redirect_uri
+            self.base_uri = redirect_uri[:redirect_uri.rfind('/')]
+            return True
+        elif code == '408':
+            print '[ERROR] WeChat login timeout .'
+        else:
+            print '[ERROR] WeChat login exception .'
+        return False
+
+    def login(self):
+        r = self.session.get(self.redirect_uri)
+        r.encoding = 'utf-8'
+        data = r.text
+        doc = xml.dom.minidom.parseString(data)
+        root = doc.documentElement
+
+        for node in root.childNodes:
+            if node.nodeName == 'skey':
+                self.skey = node.childNodes[0].data
+            elif node.nodeName == 'wxsid':
+                self.sid = node.childNodes[0].data
+            elif node.nodeName == 'wxuin':
+                self.uin = node.childNodes[0].data
+            elif node.nodeName == 'pass_ticket':
+                self.pass_ticket = node.childNodes[0].data
+
+        if '' in (self.skey, self.sid, self.uin, self.pass_ticket):
+            return False
+
+        self.base_request = {
+            'Uin': self.uin,
+            'Sid': self.sid,
+            'Skey': self.skey,
+            'DeviceID': self.device_id,
+        }
+        return True
+
+    def init(self):
+        url = self.base_uri + '/webwxinit?r=%i&lang=en_US&pass_ticket=%s' % (int(time.time()), self.pass_ticket)
+        params = {
+            'BaseRequest': self.base_request
+        }
+        r = self.session.post(url, data=json.dumps(params))
+        r.encoding = 'utf-8'
+        dic = json.loads(r.text)
+        self.sync_key = dic['SyncKey']
+        self.user = dic['User']
+        self.sync_key_str = '|'.join([str(keyVal['Key']) + '_' + str(keyVal['Val'])
+                                      for keyVal in self.sync_key['List']])
+        return dic['BaseResponse']['Ret'] == 0
+
+    def status_notify(self):
+        url = self.base_uri + '/webwxstatusnotify?lang=zh_CN&pass_ticket=%s' % self.pass_ticket
+        self.base_request['Uin'] = int(self.base_request['Uin'])
+        params = {
+            'BaseRequest': self.base_request,
+            "Code": 3,
+            "FromUserName": self.user['UserName'],
+            "ToUserName": self.user['UserName'],
+            "ClientMsgId": int(time.time())
+        }
+        r = self.session.post(url, data=json.dumps(params))
+        r.encoding = 'utf-8'
+        dic = json.loads(r.text)
+        return dic['BaseResponse']['Ret'] == 0
+
+    def test_sync_check(self):
+        for host in ['webpush', 'webpush2']:
+            self.sync_host = host
+            retcode = self.sync_check()[0]
+            if retcode == '0':
+                return True
+        return False
+
+    def sync_check(self):
+        params = {
+            'r': int(time.time()),
+            'sid': self.sid,
+            'uin': self.uin,
+            'skey': self.skey,
+            'deviceid': self.device_id,
+            'synckey': self.sync_key_str,
+            '_': int(time.time()),
+        }
+        url = 'https://' + self.sync_host + '.weixin.qq.com/cgi-bin/mmwebwx-bin/synccheck?' + urllib.urlencode(params)
+        try:
+            r = self.session.get(url)
+        except (ConnectionError, ReadTimeout):
+            return [-1, -1]
+        r.encoding = 'utf-8'
+        data = r.text
+        pm = re.search(r'window.synccheck=\{retcode:"(\d+)",selector:"(\d+)"\}', data)
+        retcode = pm.group(1)
+        selector = pm.group(2)
+        return [retcode, selector]
+
+    def sync(self):
+        url = self.base_uri + '/webwxsync?sid=%s&skey=%s&lang=en_US&pass_ticket=%s' \
+                              % (self.sid, self.skey, self.pass_ticket)
+        params = {
+            'BaseRequest': self.base_request,
+            'SyncKey': self.sync_key,
+            'rr': ~int(time.time())
+        }
+        try:
+            r = self.session.post(url, data=json.dumps(params))
+        except (ConnectionError, ReadTimeout):
+            return None
+        r.encoding = 'utf-8'
+        dic = json.loads(r.text)
+        if dic['BaseResponse']['Ret'] == 0:
+            self.sync_key = dic['SyncKey']
+            self.sync_key_str = '|'.join([str(keyVal['Key']) + '_' + str(keyVal['Val'])
+                                          for keyVal in self.sync_key['List']])
+        return dic
+
+    def get_icon(self, uid):
+        url = self.base_uri + '/webwxgeticon?username=%s&skey=%s' % (uid, self.skey)
+        r = self.session.get(url)
+        data = r.content
+        fn = 'img_' + uid + '.jpg'
+        with open(fn, 'wb') as f:
+            f.write(data)
+        return fn
+
+    def get_head_img(self, uid):
+        url = self.base_uri + '/webwxgetheadimg?username=%s&skey=%s' % (uid, self.skey)
+        r = self.session.get(url)
+        data = r.content
+        fn = 'img_' + uid + '.jpg'
+        with open(fn, 'wb') as f:
+            f.write(data)
+        return fn
+
+    def get_msg_img_url(self, msgid):
+        return self.base_uri + '/webwxgetmsgimg?MsgID=%s&skey=%s' % (msgid, self.skey)
+
+    def get_msg_img(self, msgid):
+        url = self.base_uri + '/webwxgetmsgimg?MsgID=%s&skey=%s' % (msgid, self.skey)
+        r = self.session.get(url)
+        data = r.content
+        fn = 'img_' + msgid + '.jpg'
+        with open(fn, 'wb') as f:
+            f.write(data)
+        return fn
+
+    def get_voice_url(self, msgid):
+        return self.base_uri + '/webwxgetvoice?msgid=%s&skey=%s' % (msgid, self.skey)
+
+    def get_voice(self, msgid):
+        url = self.base_uri + '/webwxgetvoice?msgid=%s&skey=%s' % (msgid, self.skey)
+        r = self.session.get(url)
+        data = r.content
+        fn = 'voice_' + msgid + '.mp3'
+        with open(fn, 'wb') as f:
+            f.write(data)
+        return fn