基于Python命令行的NBA文字直播小工具

NBA季后赛正在进行中,无奈要上班,不能看视频直播。而文字直播页面又有太多广告之类的东西,所以花半天时间,用Python 3搞一个基于命令行的文字直播,看着清爽,又不容易被领导发现。效果如图所示:

图1:程序启动时,列出当前所有比赛

图2:输入比赛ID后,文字直播来了

找了一圈NBA文字直播网站,发现手机版直播吧有现成的接口,直接返回json格式数据。那就是它了,听我慢慢道来。

首先在电脑浏览器打开手机版直播吧,我用的是chrome浏览器,在Network中可以看到,它不停地用GET方式请求http://bifen4m.qiumibao.com/json/list.htm,这个地址会返回当前正在进行的所有类型比赛的基本情况,根据其中的type字段过滤掉非NBA比赛就OK了。其中最重要的是ID字段,之后的所有操作都需要用到。返回的数据如下所示:

{
    "code": "2760624",
    "second": "10",
    "list": [
        {
            "id": "96233",
            "sdate": "2017-04-20",
            "time": "10:30",
            "url": "/zhibo/nba/2017/042096233.htm",
            "type": "basketball",
            "start": "2017-04-20 10:30",
            "home_team": "勇士",
            "visit_team": "开拓者",
            "home_score": "106",
            "visit_score": "81",
            "period_cn": "第4节\n01:30",
            "from": "dc.live",
            "code": "373",
            "update": "13:13:37",
            "big_score_1": "",
            "big_score_2": ""
        },
        ... # 省略了其它比赛的信息
    ]
}

获得所有正在进行的比赛ID后,点击某一场比赛,进入文字直播页面。首先请求http://dingshi4pc.qiumibao.com/livetext/data/cache/max_sid/XXXX/0.htm页面,其中XXXX是上一步获取的id,它会返回一个数字,即max_sid。然后判断该max_sid是否大于上次获取的该值,如果大于,表示有新的直播文字,否则表示没有。

如果max_sid大于上一次的值,通过请求http://bifen4pc2.qiumibao.com/json/XXXX/YYYY.htm(其中XXXX是今天的日期,格式为2017-04-20YYYY是第一步中获取的id),返回这场比赛的基本情况,比如比分,是第几节等,如下所示:

{
    "id": "96233",
    "home_team": "勇士",
    "visit_team": "开拓者",
    "home_score": "110",
    "visit_score": "81",
    "period_cn": "第4节结束",
    ...
}

最后,就可以获取直播的文字了。请求http://dingshi4pc.qiumibao.com/livetext/data/cache/livetext/XXXX/0/lit_page_2/YYYY.htm(其中XXXX是比赛idYYYYmax_sid),它会返回最新的直播文字,其中包括一条或多条直播文字,如下所示:

[
    {
        "live_id": "8769977",
        "live_text": "@仙女最库阿-:库里正负值最高32我去!!!!",
        "home_score": "110",
        "visit_score": "81",
        "pid_text": "比赛结束",
        ...
    },
    ... # 可能有多条直播文字
]

可以看到,该请求返回的信息中没有比赛剩余时间、主队和客队等信息,所以每次获取直播文字之前,需要多一次请求,获得比赛的基本信息。

基本流程就是这样,非常简单,一共就四个GET请求,返回四串json,用requests库请求,然后解析搞定。

先定义一个Match类,表示当前正在进行的每一场比赛。

# match.py

class Match:
    def __init__(self, **kwargs):
        self.id = kwargs['id']
        self.home_team = kwargs['home_team']
        self.visit_team = kwargs['visit_team']
        self.home_score = kwargs['home_score']
        self.visit_score = kwargs['visit_score']
        self.period_cn = kwargs['period_cn'].replace('\n', ' ')

    def __repr__(self):
        return '{self.id} {self.home_team} {self.home_score} - {self.visit_score} {self.visit_team} {self.period_cn}'.format(self=self)

再定义一个TextLiving类,表示获取的每一条文字直播。

# text_living.py

class TextLiving:
    def __init__(self, match_info, **kwargs):
        self.home_team = match_info['home_team']
        self.visit_team = match_info['visit_team']
        self.period_cn = match_info['period_cn']
        self.live_text = kwargs['live_text']
        self.home_score = kwargs['home_score']
        self.visit_score = kwargs['visit_score']

    def __repr__(self):
        return '{self.home_team} {self.home_score} - {self.visit_score} {self.visit_team} {self.period_cn}\n{self.live_text}\n{sep}'.format(self=self, sep='*'*60)

接着创建zhibo8_api.py模块,用于获取相关数据。

# 当前正在进行的比赛
Living_Matches_Url = 'http://bifen4m.qiumibao.com/json/list.htm'

# 某一场比赛当前的max_sid
Match_Max_Sid_Url = 'http://dingshi4pc.qiumibao.com/livetext/data/cache/max_sid/%s/0.htm'
# 某一场比赛最新文字直播
Match_Living_Text_Url = 'http://dingshi4pc.qiumibao.com/livetext/data/cache/livetext/%s/0/lit_page_2/%d.htm'
# 某一场比赛当前的基本情况
Match_Info_Url = 'http://bifen4pc2.qiumibao.com/json/%s/%s.htm'


def get_living_matches():
    response = requests.get(Living_Matches_Url)
    result = json.loads(response.text)
    matches = [Match(**match) for match in result['list'] if match['type'] == 'basketball' and match['period_cn'] != '完赛']
    return matches


def get_match_max_sid(match_id):
    response = requests.get(Match_Max_Sid_Url % match_id)
    if response.status_code == requests.codes.ok:
        return int(response.text)


def get_match_living(match_id, max_sid):
    # 先获取比赛的当前情况,再获取最新文字直播
    match_info = get_match_info(match_id)

    response = requests.get(Match_Living_Text_Url % (match_id, max_sid))

    texts = []
    if response.status_code == requests.codes.ok:
        result = json.loads(response.text)
        texts = [TextLiving(match_info, **living) for living in result]
    return texts


def get_match_info(match_id):
    today = datetime.now().strftime('%Y-%m-%d')
    response = requests.get(Match_Info_Url % (today, match_id))
    match_info = json.loads(response.text)
    return match_info

最后,在main.py模块中启动程序,开始直播!

def get_living_matches():
    matches = zhibo8_api.get_living_matches()
    for match in matches:
        print(match)
    return matches

def get_watch_match(matches):
    match_id = input('请输入比赛ID:')
    for match in matches:
        if match.id == match_id:
            return match
    else:
        print('输入的ID不正确')
        return None

def main_loop():
    matches = get_living_matches()
    if len(matches) == 0:
        print('当前没有比赛!!!')
        return

    match = get_watch_match(matches)
    if not match:
        print('没去找到该比赛')
        return

    current_match_max_sid = -1
    while True:
        match_max_sid = zhibo8_api.get_match_max_sid(match.id)
        if not match_max_sid:
            print('没有直播数据')
            return

        if current_match_max_sid == match_max_sid:
            continue

        current_match_max_sid = match_max_sid
        text_livings = zhibo8_api.get_match_living(match.id, current_match_max_sid)
        for text in text_livings:
            print(text)

if __name__ == '__main__':
    main_loop()

程序中基本没做异常处理,还有很多需要改进的地方,欢迎大家指教。如果有朋友需要,我会把代码放在GitHub上。

你可能感兴趣的:(Python)