🐛 Fix zhanqi.py (#167)

修复战旗直播。

zhanqi.py

@@ -1,5 +1,8 @@
 # 获取战旗直播（战旗TV）的真实流媒体地址。https://www.zhanqi.tv/lives
 # 默认最高画质
+
+import json
+
 import requests
 
 
@@ -7,22 +10,48 @@ class ZhanQi:
 
     def __init__(self, rid):
         self.rid = rid
+        self.s = requests.Session()
 
     def get_real_url(self):
-        with requests.Session() as s:
-            res = s.get('https://m.zhanqi.tv/api/static/v2.1/room/domain/{}.json'.format(self.rid))
+
+        res = self.s.get('https://m.zhanqi.tv/api/static/v2.1/room/domain/{}.json'.format(self.rid))
+        try:
+            res = res.json()
+            videoid = res['data']['videoId']
+            status = res['data']['status']
+        except (KeyError, json.decoder.JSONDecodeError):
+            raise Exception('Incorrect rid')
+
+        if status == '4':
+            # 获取gid
+            res = self.s.get('https://www.zhanqi.tv/api/public/room.viewer')
             try:
                 res = res.json()
-                videoid = res['data']['videoId']
-                status = res['data']['status']
-                if status == '4':
-                    url = 'https://dlhdl-cdn.zhanqi.tv/zqlive/{}.flv?get_url=1'.format(videoid)
-                    real_url = s.get(url).text
-                else:
-                    raise Exception('未开播')
-            except:
-                raise Exception('直播间不存在')
-            return real_url
+                gid = res['data']['gid']
+            except KeyError:
+                raise Exception('Getting gid incorrectly')
+
+            # 获取cdn_host
+            res = self.s.get('https://umc.danuoyi.alicdn.com/dns_resolve_https?app=zqlive&host_key=alhdl-cdn.zhanqi.tv')
+            cdn_host, = res.json().get('redirect_domain')
+
+            # 获取chain_key
+            data = {
+                'stream': f'{videoid}.flv',
+                'cdnKey': 202,
+                'platform': 128,
+            }
+            headers = {
+                'cookie': f'gid={gid}',
+            }
+            res = self.s.post('https://www.zhanqi.tv/api/public/burglar/chain', data=data, headers=headers).json()
+            chain_key = res['data']['key']
+            url = f'https://{cdn_host}/alhdl-cdn.zhanqi.tv/zqlive/{videoid}.flv?{chain_key}&playNum=68072487067' \
+                  f'&gId={gid}&ipFrom=1&clientIp=&fhost=h5&platform=128 '
+
+            return url
+        else:
+            raise Exception('No streaming')
 
 
 def get_real_url(rid):