有人做过模拟微信登录吗，登陆成功无法获取到好友列表

如题，登录发送消息什么的都能实现，但是就是获取不到好友列表，我也看了好几个 github 模拟登陆的，发现他们代码里面都有一个这个代码，不清楚什么作用，想问问是不是这个问题导致的

https://github.com/littlecodersh/ItChat/blob/bbcb8173b611137a6fd6ac8a4d0a96cb8892fbd6/itchat/components/login.py#L157

for indexUrl, detailedUrl in (
            ("wx2.qq.com"      , ("file.wx2.qq.com", "webpush.wx2.qq.com")),
            ("wx8.qq.com"      , ("file.wx8.qq.com", "webpush.wx8.qq.com")),
            ("qq.com"          , ("file.wx.qq.com", "webpush.wx.qq.com")),
            ("web2.wechat.com" , ("file.web2.wechat.com", "webpush.web2.wechat.com")),
            ("wechat.com"      , ("file.web.wechat.com", "webpush.web.wechat.com"))):
        fileUrl, syncUrl = ['https://%s/cgi-bin/mmwebwx-bin' % url for url in detailedUrl]
        if indexUrl in core.loginInfo['url']:
            core.loginInfo['fileUrl'], core.loginInfo['syncUrl'] = \
                fileUrl, syncUrl
            break

https://github.com/0x5e/wechat-deleted-friends/blob/b37f324f9a4df68c3799da5b7dc2559921293e9b/wdf.py#L151

        # push_uri 与 base_uri 对应关系(排名分先后)(就是这么奇葩..)
        services = [
            ('wx2.qq.com', 'webpush2.weixin.qq.com'),
            ('qq.com', 'webpush.weixin.qq.com'),
            ('web1.wechat.com', 'webpush1.wechat.com'),
            ('web2.wechat.com', 'webpush2.wechat.com'),
            ('wechat.com', 'webpush.wechat.com'),
            ('web1.wechatapp.com', 'webpush1.wechatapp.com'),
        ]
        push_uri = base_uri
        for (searchUrl, pushUrl) in services:
            if base_uri.find(searchUrl) >= 0:
                push_uri = 'https://%s/cgi-bin/mmwebwx-bin' % pushUrl
                break

这两处代码有什么作用呢