649 lines
27 KiB
Python
649 lines
27 KiB
Python
import sys
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import re
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import json
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import time
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import random
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import struct
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import requests
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from base64 import b64encode, b64decode
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from urllib.parse import urlencode
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from urllib3 import disable_warnings
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from base.spider import Spider
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disable_warnings()
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class Spider(Spider):
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# ==================== 加密常量 ====================
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DELTA = 0x9e3779b9
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ROUNDS = 16
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LOG_ROUNDS = 4
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SALT_LEN = 2
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ZERO_LEN = 7
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TEA_CKEY = bytes.fromhex('59b2f7cf725ef43c34fdd7c123411ed3')
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GUARD_TEA_KEY = bytes.fromhex('110DBEC10C23E7D2E56A1CAD6914EF1B')
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XOR_KEY = [0x84, 0x2E, 0xED, 0x08, 0xF0, 0x66, 0xE6, 0xEA,
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0x48, 0xB4, 0xCA, 0xA9, 0x91, 0xED, 0x6F, 0xF3]
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GUARD_XOR_KEY = [0xB3, 0xC9, 0x53, 0xA0, 0x69, 0x13, 0xAD, 0x4D]
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STANDARD_ALPHABET = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='
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CUSTOM_ALPHABET = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-='
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# ==================== 频道图标 ====================
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# 使用 wanglindl/TVlogo 小尺寸台标源（jsdelivr CDN，已验证可用）
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# 图标尺寸较小，适合TVBox/直播列表显示
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LOGOS = {
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'cctv1': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV1.png',
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'cctv2': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV2.png',
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'cctv3': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV3.png',
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'cctv4': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV4.png',
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'cctv5': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV5.png',
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'cctv5p': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV5plus.png',
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'cctv6': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV6.png',
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'cctv7': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV7.png',
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'cctv8': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV8.png',
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'cctv9': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV9.png',
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'cctv10': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV10.png',
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'cctv11': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV11.png',
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'cctv12': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV12.png',
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'cctv13': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV13.png',
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'cctv14': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV14.png',
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'cctv15': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV15.png',
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'cctv16': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV16.png',
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'cctv164k': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV16.png',
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'cctv17': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV17.png',
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'cctv4k': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV4K.png',
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'cctv8k': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTV8K.png',
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'cgtn': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CGTN.png',
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'cgtnfy': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CGTNfy.png',
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'cgtney': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CGTNey.png',
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'cgtnalby': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CGTNalby.png',
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'cgtnxby': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CGTNxbyy.png',
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'cgtnwyjl': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CGTNjilu.png',
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'cctvfyjc': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTVfyjc.png',
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'cctvdyjc': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTVdyjc.png',
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'cctvhjjc': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTVhjjc.png',
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'cctvsjdl': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTVsjdl.png',
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'cctvfyyy': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTVfyyy.png',
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'cctvbqkj': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTVbqkj.png',
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'cctvfyzq': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTVfyzq.png',
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'cctvgeqwq': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTVgefwq.png',
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'cctvnxss': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTVnxss.png',
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'cctvyswhjp': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTVyswhjp.png',
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'cctvystq': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTVystq.png',
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'cctvdszn': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTVdszn.png',
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'cctvwsjk': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CCTVwsjk.png',
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'bjws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Beijing.png',
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'jsws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Jiangsu.png',
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'dfws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Dongfang.png',
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'zjws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Zhejiang.png',
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'hnws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Hunan.png',
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'hbws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Hubei.png',
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'gdws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Guangdong.png',
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'gxws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Guangxi.png',
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'hljws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Heilongjiang.png',
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'hnws2': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Hainan.png',
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'cqws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Chongqing.png',
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'szws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Shenzhen.png',
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'scws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Sichuan.png',
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'henanws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Henan.png',
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'fjdnhz': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Dongnan.png',
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'gzhws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Guizhou.png',
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'jxws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Jiangxi.png',
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'lnws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Liaoning.png',
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'ahws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Anhui.png',
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'hbws2': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Hebei.png',
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'sdws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Shandong.png',
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'tjws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Tianjin.png',
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'jlws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Jilin.png',
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'shanxiws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Shanxi.png',
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'nxws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Ningxia.png',
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'nmgws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Neimeng.png',
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'ynws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Yunnan.png',
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'shanxiws2': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Shanxi_.png',
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'qhws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Qinghai.png',
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'xzws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Xizang.png',
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'xjws': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/Xinjiang.png',
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'cetv1': 'https://cdn.jsdelivr.net/gh/wanglindl/TVlogo@main/img/CETV1.png',
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'gxpd': '',
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}
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# ==================== 频道数据 ====================
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# {key: [cnlid, livepid, defn, display_name]}
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CHANNELS = {
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'cctv1': ['2024078201', '600001859', 'fhd', 'CCTV-1'],
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'cctv2': ['2024075401', '600001800', 'fhd', 'CCTV-2'],
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'cctv3': ['2024068501', '600001801', 'fhd', 'CCTV-3'],
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'cctv4': ['2029797101', '600001814', 'fhd', 'CCTV-4'],
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'cctv5': ['2024078401', '600001818', 'fhd', 'CCTV-5'],
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'cctv5p': ['2024078001', '600001817', 'fhd', 'CCTV-5+'],
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'cctv6': ['2013693901', '600108442', 'fhd', 'CCTV-6'],
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'cctv7': ['2024072001', '600004092', 'fhd', 'CCTV-7'],
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'cctv8': ['2029793001', '600001803', 'fhd', 'CCTV-8'],
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'cctv9': ['2024078601', '600004078', 'fhd', 'CCTV-9'],
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'cctv10': ['2024078701', '600001805', 'fhd', 'CCTV-10'],
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'cctv11': ['2027248701', '600001806', 'fhd', 'CCTV-11'],
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'cctv12': ['2027248801', '600001807', 'fhd', 'CCTV-12'],
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'cctv13': ['2029797201', '600001811', 'fhd', 'CCTV-13'],
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'cctv14': ['2027248901', '600001809', 'fhd', 'CCTV-14'],
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'cctv15': ['2027249001', '600001815', 'fhd', 'CCTV-15'],
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'cctv16': ['2027249101', '600098637', 'fhd', 'CCTV-16'],
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'cctv164k': ['2027249301', '600099502', 'fhd', 'CCTV-16(4K)'],
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'cctv17': ['2027249401', '600001810', 'fhd', 'CCTV-17'],
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'cctv4k': ['2029810301', '600002264', 'fhd', 'CCTV-4K'],
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'cctv8k': ['2026774101', '600156816', 'fhd', 'CCTV-8K'],
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'cgtn': ['2024181701', '600014550', 'fhd', 'CGTN'],
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'cgtnfy': ['2024181801', '600084704', 'fhd', 'CGTN法语'],
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'cgtney': ['2024181901', '600084758', 'fhd', 'CGTN俄语'],
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'cgtnalby': ['2024182001', '600084782', 'fhd', 'CGTN阿拉伯语'],
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'cgtnxby': ['2024182101', '600084744', 'fhd', 'CGTN西班牙语'],
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'cgtnwyjl': ['2024182301', '600084781', 'fhd', 'CGTN外语纪录'],
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'cctvfyjc': ['2025637103', '600099658', 'shd', '风云剧场'],
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'cctvdyjc': ['2026874203', '600099655', 'shd', '第一剧场'],
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'cctvhjjc': ['2026874303', '600099620', 'shd', '怀旧剧场'],
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'cctvsjdl': ['2026874403', '600099637', 'shd', '世界地理'],
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'cctvfyyy': ['2026874503', '600099660', 'shd', '风云音乐'],
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'cctvbqkj': ['2026874603', '600099649', 'shd', '兵器科技'],
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'cctvfyzq': ['2026966203', '600099636', 'shd', '风云足球'],
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'cctvgeqwq': ['2026874703', '600099659', 'shd', '高尔夫·网球'],
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'cctvnxss': ['2026874803', '600099650', 'shd', '女性时尚'],
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'cctvyswhjp': ['2026874903', '600099653', 'shd', '央视文化精品'],
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'cctvystq': ['2026875003', '600099652', 'shd', '央视台球'],
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'cctvdszn': ['2026875103', '600099656', 'shd', '电视指南'],
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'cctvwsjk': ['2025637003', '600099651', 'shd', '卫生健康'],
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'bjws': ['2024052703', '600002309', 'fhd', '北京卫视'],
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'jsws': ['2024171103', '600002521', 'fhd', '江苏卫视'],
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'dfws': ['2024054503', '600002483', 'fhd', '东方卫视'],
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'zjws': ['2024054703', '600002520', 'fhd', '浙江卫视'],
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'hnws': ['2024054803', '600002475', 'fhd', '湖南卫视'],
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'hbws': ['2024171203', '600002508', 'fhd', '湖北卫视'],
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'gdws': ['2024060903', '600002485', 'fhd', '广东卫视'],
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'gxws': ['2024060703', '600002509', 'fhd', '广西卫视'],
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'hljws': ['2029797003', '600002498', 'fhd', '黑龙江卫视'],
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'hnws2': ['2024055603', '600002506', 'fhd', '海南卫视'],
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'cqws': ['2024061103', '600002531', 'fhd', '重庆卫视'],
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'szws': ['2024061303', '600002481', 'fhd', '深圳卫视'],
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'scws': ['2024061403', '600002516', 'fhd', '四川卫视'],
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'henanws': ['2029797303', '600002525', 'fhd', '河南卫视'],
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'fjdnhz': ['2024061503', '600002484', 'fhd', '福建东南卫视'],
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'gzhws': ['2024061603', '600002490', 'fhd', '贵州卫视'],
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'jxws': ['2024061703', '600002503', 'fhd', '江西卫视'],
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'lnws': ['2024171303', '600002505', 'fhd', '辽宁卫视'],
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'ahws': ['2024171403', '600002532', 'fhd', '安徽卫视'],
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'hbws2': ['2024171503', '600002493', 'fhd', '河北卫视'],
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'sdws': ['2029787903', '600002513', 'fhd', '山东卫视'],
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'tjws': ['2019927003', '600152137', 'fhd', '天津卫视'],
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'jlws': ['2025561503', '600190405', 'fhd', '吉林卫视'],
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'shanxiws': ['2029795103', '600190400', 'fhd', '陕西卫视'],
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'nxws': ['2025608503', '600190737', 'fhd', '宁夏卫视'],
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'nmgws': ['2025561203', '600190401', 'fhd', '内蒙古卫视'],
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'ynws': ['2025561303', '600190402', 'fhd', '云南卫视'],
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'shanxiws2': ['2025560803', '600190407', 'fhd', '山西卫视'],
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'qhws': ['2025559103', '600190406', 'fhd', '青海卫视'],
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'xzws': ['2025558003', '600190403', 'fhd', '西藏卫视'],
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'xjws': ['2019927403', '600152138', 'fhd', '新疆卫视'],
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'cetv1': ['2022823801', '600171827', 'fhd', '中国教育电视台'],
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'gxpd': ['2029360403', '600213139', 'fhd', '国学频道'],
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}
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# ==================== 分类定义 ====================
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CATS = [
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{
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'name': '央视',
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'ids': [
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'cctv1', 'cctv2', 'cctv3', 'cctv4', 'cctv5', 'cctv5p',
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'cctv6', 'cctv7', 'cctv8', 'cctv9', 'cctv10', 'cctv11',
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'cctv12', 'cctv13', 'cctv14', 'cctv15', 'cctv16', 'cctv164k',
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'cctv17', 'cctv4k', 'cctv8k',
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]
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},
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{
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'name': 'CGTN',
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'ids': ['cgtn', 'cgtnfy', 'cgtney', 'cgtnalby', 'cgtnxby', 'cgtnwyjl']
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},
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{
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'name': '央视付费',
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'ids': [
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'cctvfyjc', 'cctvdyjc', 'cctvhjjc', 'cctvsjdl', 'cctvfyyy',
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'cctvbqkj', 'cctvfyzq', 'cctvgeqwq', 'cctvnxss', 'cctvyswhjp',
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'cctvystq', 'cctvdszn', 'cctvwsjk',
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]
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},
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{
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'name': '卫视',
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'ids': [
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'bjws', 'jsws', 'dfws', 'zjws', 'hnws', 'hbws', 'gdws',
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'gxws', 'hljws', 'hnws2', 'cqws', 'szws', 'scws', 'henanws',
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'fjdnhz', 'gzhws', 'jxws', 'lnws', 'ahws', 'hbws2', 'sdws',
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'tjws', 'jlws', 'shanxiws', 'nxws', 'nmgws', 'ynws',
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'shanxiws2', 'qhws', 'xzws', 'xjws',
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]
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},
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{
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'name': '其他',
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'ids': ['cetv1', 'gxpd']
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},
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]
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# ==================== 初始化 ====================
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def init(self, extend=""):
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self.guid = self._gen_guid()
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self.session = requests.Session()
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self.session.verify = False
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self.session.headers.update({
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'User-Agent': 'qqlive',
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'Connection': 'Keep-Alive',
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'Accept': 'application/json',
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})
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def getName(self):
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return "央视频"
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# ==================== 蜘蛛壳接口 ====================
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def homeContent(self, filter):
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classes = [
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{'type_id': str(i), 'type_name': c['name']}
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for i, c in enumerate(self.CATS)
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]
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return {'class': classes}
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def categoryContent(self, tid, pg, filter, extend):
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cat = self.CATS[int(tid)]
|
|
vod_list = []
|
|
for cid in cat['ids']:
|
|
ch = self.CHANNELS.get(cid)
|
|
if ch:
|
|
vod_list.append({
|
|
'vod_id': cid,
|
|
'vod_name': ch[3],
|
|
'vod_pic': self.LOGOS.get(cid, ''),
|
|
'vod_remarks': ch[2].upper(),
|
|
})
|
|
return {
|
|
'page': 1,
|
|
'pagecount': 1,
|
|
'limit': len(vod_list),
|
|
'total': len(vod_list),
|
|
'list': vod_list,
|
|
}
|
|
|
|
def detailContent(self, ids):
|
|
cid = ids[0]
|
|
ch = self.CHANNELS.get(cid)
|
|
if not ch:
|
|
return {'list': []}
|
|
vod = {
|
|
'vod_id': cid,
|
|
'vod_name': ch[3],
|
|
'vod_pic': self.LOGOS.get(cid, ''),
|
|
'vod_play_from': '央视频',
|
|
'vod_play_url': f'直播${cid}',
|
|
'vod_content': f'{ch[3]} 高清直播',
|
|
}
|
|
return {'list': [vod]}
|
|
|
|
def playerContent(self, flag, id, vipFlags):
|
|
ch = self.CHANNELS.get(id)
|
|
if not ch:
|
|
return {'parse': 0, 'url': '', 'header': ''}
|
|
play_url = self._get_play_url(ch[0], ch[1], ch[2])
|
|
if play_url:
|
|
return {'parse': 0, 'url': play_url, 'header': ''}
|
|
return {'parse': 0, 'url': '', 'header': ''}
|
|
|
|
# ==================== 播放地址获取 ====================
|
|
|
|
def _get_play_url(self, cnlid, livepid, defn):
|
|
try:
|
|
self.guid = self._gen_guid()
|
|
ck = self._gen_ckey(cnlid)
|
|
flowid = self._gen_flowid()
|
|
|
|
params = {
|
|
"atime": "120",
|
|
"livepid": livepid,
|
|
"cnlid": cnlid,
|
|
"appVer": "V8.22.1035.3031",
|
|
"app_version": "300090",
|
|
"caplv": "1",
|
|
"cmd": "2",
|
|
"defn": defn,
|
|
"device": "iPhone",
|
|
"encryptVer": "4.2",
|
|
"getpreviewinfo": "0",
|
|
"hevclv": "33",
|
|
"lang": "zh-Hans_JP",
|
|
"livequeue": "0",
|
|
"logintype": "1",
|
|
"nettype": "1",
|
|
"newnettype": "1",
|
|
"newplatform": "4330403",
|
|
"platform": "4330403",
|
|
"sdtfrom": "v3021",
|
|
"spacode": "23",
|
|
"spaudio": "1",
|
|
"spdemuxer": "6",
|
|
"spdrm": "2",
|
|
"spdynamicrange": "7",
|
|
"spflv": "1",
|
|
"spflvaudio": "1",
|
|
"sphdrfps": "60",
|
|
"sphttps": "0",
|
|
"spvcode": "MSgzMDoyMTYwLDYwOjIxNjB8MzA6MjE2MCw2MDoyMTYwKTsyKDMwOjIxNjAsNjA6MjE2MHwzMDoyMTYwLDYwOjIxNjAp",
|
|
"spvideo": "4",
|
|
"stream": "1",
|
|
"system": "1",
|
|
"sysver": "ios18.2.1",
|
|
"uhd_flag": "4",
|
|
"cKey": ck['ckey'],
|
|
"guid": self.guid,
|
|
"fntick": ck['params']['Timestamp'],
|
|
"flowid": flowid,
|
|
"playbacktime": "0",
|
|
}
|
|
|
|
resp = self.session.get(
|
|
"https://bkliveinfo.ysp.cctv.cn",
|
|
params=params,
|
|
timeout=15,
|
|
)
|
|
data = resp.json()
|
|
if data.get('iretcode') == 0 and data.get('playurl'):
|
|
return data['playurl']
|
|
except Exception as e:
|
|
print(f"[央视频] 获取播放地址失败: {e}")
|
|
return None
|
|
|
|
# ==================== GUID / FlowID ====================
|
|
|
|
def _gen_guid(self):
|
|
return '{:08x}{:04x}{:04x}{:04x}{:012x}'.format(
|
|
random.randint(0, 0xffffffff),
|
|
random.randint(0, 0xffff),
|
|
random.randint(0, 0xffff),
|
|
random.randint(0, 0xffff),
|
|
random.randint(0, 0xffffffffffff),
|
|
)
|
|
|
|
def _gen_flowid(self):
|
|
p = [
|
|
random.randint(0, 0xffff), random.randint(0, 0xffff),
|
|
random.randint(0, 0xffff),
|
|
random.randint(0, 0x0fff) | 0x4000,
|
|
random.randint(0, 0x3fff) | 0x8000,
|
|
random.randint(0, 0xffff), random.randint(0, 0xffff),
|
|
random.randint(0, 0xffff),
|
|
]
|
|
return '{:04X}{:04X}-{:04X}-{:04X}-{:04X}-{:04X}{:04X}{:04X}_4330403'.format(*p)
|
|
|
|
# ==================== 签名 ====================
|
|
|
|
def _calc_sig(self, buf):
|
|
s = 0
|
|
for b in buf:
|
|
s = (0x83 * s + (b & 0xFF)) & 0x7FFFFFFF
|
|
return s
|
|
|
|
# ==================== 自定义 Base64 ====================
|
|
|
|
def _b64enc(self, data):
|
|
enc = b64encode(data).decode()
|
|
return enc.translate(str.maketrans(self.STANDARD_ALPHABET, self.CUSTOM_ALPHABET)).rstrip('=')
|
|
|
|
def _b64dec(self, text):
|
|
text = text.rstrip('=')
|
|
if len(text) % 4:
|
|
text += '=' * (4 - len(text) % 4)
|
|
return b64decode(text.translate(str.maketrans(self.CUSTOM_ALPHABET, self.STANDARD_ALPHABET)))
|
|
|
|
# ==================== XOR ====================
|
|
|
|
def _xor(self, arr):
|
|
return [arr[i] ^ self.XOR_KEY[i & 0xF] for i in range(len(arr))]
|
|
|
|
# ==================== TEA ====================
|
|
|
|
def _tea_enc(self, data, key):
|
|
if len(data) < 8:
|
|
data = data.ljust(8, b'\0')
|
|
y, z = struct.unpack('>II', data[:8])
|
|
k = struct.unpack('>4I', key[:16])
|
|
s = 0
|
|
for _ in range(self.ROUNDS):
|
|
s = (s + self.DELTA) & 0xFFFFFFFF
|
|
y = (y + (((z << 4) + k[0]) ^ (z + s) ^ ((z >> 5) + k[1]))) & 0xFFFFFFFF
|
|
z = (z + (((y << 4) + k[2]) ^ (y + s) ^ ((y >> 5) + k[3]))) & 0xFFFFFFFF
|
|
return struct.pack('>II', y, z)
|
|
|
|
def _tea_dec(self, data, key):
|
|
y, z = struct.unpack('>II', data[:8])
|
|
k = struct.unpack('>4I', key[:16])
|
|
s = (self.DELTA << self.LOG_ROUNDS) & 0xFFFFFFFF
|
|
for _ in range(self.ROUNDS):
|
|
z = (z - (((y << 4) + k[2]) ^ (y + s) ^ ((y >> 5) + k[3]))) & 0xFFFFFFFF
|
|
y = (y - (((z << 4) + k[0]) ^ (z + s) ^ ((z >> 5) + k[1]))) & 0xFFFFFFFF
|
|
s = (s - self.DELTA) & 0xFFFFFFFF
|
|
return struct.pack('>II', y, z)
|
|
|
|
# ==================== CBC 加密 ====================
|
|
|
|
def _cbc_enc(self, p_in, n_len, p_key):
|
|
pad_salt_zero = n_len + 1 + self.SALT_LEN + self.ZERO_LEN
|
|
n_pad = pad_salt_zero % 8
|
|
if n_pad:
|
|
n_pad = 8 - n_pad
|
|
|
|
out = b''
|
|
src = [0] * 8
|
|
src[0] = (random.randint(0, 255) & 0xF8) | n_pad
|
|
si = 1
|
|
|
|
while n_pad:
|
|
src[si] = random.randint(0, 255)
|
|
si += 1
|
|
n_pad -= 1
|
|
|
|
iv_p = [0] * 8
|
|
iv_c = [0] * 8
|
|
|
|
# salt
|
|
i = 0
|
|
while i < self.SALT_LEN:
|
|
if si < 8:
|
|
src[si] = random.randint(0, 255)
|
|
si += 1
|
|
i += 1
|
|
if si == 8:
|
|
for j in range(8):
|
|
src[j] ^= iv_c[j]
|
|
tb = list(self._tea_enc(bytes(src), p_key))
|
|
for j in range(8):
|
|
tb[j] ^= iv_p[j]
|
|
iv_p = list(src)
|
|
iv_c = list(tb)
|
|
out += bytes(tb)
|
|
si = 0
|
|
|
|
# body
|
|
pi = 0
|
|
while n_len:
|
|
if si < 8:
|
|
src[si] = p_in[pi]
|
|
pi += 1
|
|
si += 1
|
|
n_len -= 1
|
|
if si == 8:
|
|
for j in range(8):
|
|
src[j] ^= iv_c[j]
|
|
tb = list(self._tea_enc(bytes(src), p_key))
|
|
for j in range(8):
|
|
tb[j] ^= iv_p[j]
|
|
iv_p = list(src)
|
|
iv_c = list(tb)
|
|
out += bytes(tb)
|
|
si = 0
|
|
|
|
# zero
|
|
i = 0
|
|
while i < self.ZERO_LEN:
|
|
if si < 8:
|
|
src[si] = 0
|
|
si += 1
|
|
i += 1
|
|
if si == 8:
|
|
for j in range(8):
|
|
src[j] ^= iv_c[j]
|
|
tb = list(self._tea_enc(bytes(src), p_key))
|
|
for j in range(8):
|
|
tb[j] ^= iv_p[j]
|
|
iv_p = list(src)
|
|
iv_c = list(tb)
|
|
out += bytes(tb)
|
|
si = 0
|
|
|
|
# last
|
|
if si > 0:
|
|
for j in range(si, 8):
|
|
src[j] = 0
|
|
for j in range(8):
|
|
src[j] ^= iv_c[j]
|
|
tb = list(self._tea_enc(bytes(src), p_key))
|
|
for j in range(8):
|
|
tb[j] ^= iv_p[j]
|
|
out += bytes(tb)
|
|
|
|
return out
|
|
|
|
# ==================== CBC 解密 ====================
|
|
|
|
def _cbc_dec(self, p_in, n_len, p_key):
|
|
if n_len % 8 != 0 or n_len < 16:
|
|
return None
|
|
dest = list(self._tea_dec(p_in[:8], p_key))
|
|
n_pad = dest[0] & 0x07
|
|
out_len = n_len - 1 - n_pad - self.SALT_LEN - self.ZERO_LEN
|
|
if out_len < 0:
|
|
return None
|
|
|
|
iv_pre = [0] * 8
|
|
iv_cur = list(p_in[:8])
|
|
off = 8
|
|
di = 1 + n_pad
|
|
|
|
# skip salt
|
|
sc = 1
|
|
while sc <= self.SALT_LEN:
|
|
if di < 8:
|
|
di += 1
|
|
sc += 1
|
|
elif di == 8:
|
|
iv_pre = list(iv_cur)
|
|
if off + 8 > n_len:
|
|
return None
|
|
iv_cur = list(p_in[off:off + 8])
|
|
for j in range(8):
|
|
dest[j] ^= iv_cur[j]
|
|
dest = list(self._tea_dec(bytes(dest), p_key))
|
|
off += 8
|
|
di = 0
|
|
|
|
# copy plain
|
|
plain = []
|
|
rem = out_len
|
|
while rem > 0:
|
|
if di < 8:
|
|
plain.append(dest[di] ^ iv_pre[di])
|
|
di += 1
|
|
rem -= 1
|
|
elif di == 8:
|
|
iv_pre = list(iv_cur)
|
|
if off + 8 > n_len:
|
|
return None
|
|
iv_cur = list(p_in[off:off + 8])
|
|
for j in range(8):
|
|
dest[j] ^= iv_cur[j]
|
|
dest = list(self._tea_dec(bytes(dest), p_key))
|
|
off += 8
|
|
di = 0
|
|
return bytes(plain)
|
|
|
|
# ==================== Guard Time ====================
|
|
|
|
def _last5(self, v):
|
|
v = str(v)
|
|
return v[-5:] if len(v) >= 5 else ''
|
|
|
|
def _gen_guard_time(self, ts, guid):
|
|
body = struct.pack('>I', ts)
|
|
for part in [self._last5(guid), self._last5('null'), self._last5('null'), '-1']:
|
|
pb = part.encode()
|
|
body += struct.pack('>H', len(pb)) + pb
|
|
|
|
plain = struct.pack('>H', len(body)) + body
|
|
chk = self._calc_sig(list(plain))
|
|
|
|
enc = self._cbc_enc(plain, len(plain), self.GUARD_TEA_KEY) + struct.pack('>I', chk)
|
|
el = list(enc)
|
|
for i in range(len(el)):
|
|
el[i] ^= self.GUARD_XOR_KEY[i & 7]
|
|
return bytes(el).hex().upper()
|
|
|
|
# ==================== CKey ====================
|
|
|
|
def _encrypt_ckey(self, data):
|
|
chk = self._calc_sig(list(data))
|
|
enc = self._cbc_enc(data, len(data), self.TEA_CKEY) + struct.pack('>I', chk)
|
|
return '--01' + self._b64enc(bytes(self._xor(list(enc))))
|
|
|
|
def _build_pkt(self, params):
|
|
d = b''
|
|
d += bytes.fromhex('0000004200000004000004d2') # 12-byte header
|
|
d += struct.pack('>I', params['Platform'])
|
|
d += struct.pack('>I', 0) # sig placeholder
|
|
d += struct.pack('>I', params['Timestamp'])
|
|
|
|
for k in ['Sdtfrom', 'randFlag', 'appVer', 'vid', 'guid']:
|
|
v = params[k].encode()
|
|
d += struct.pack('>H', len(v)) + v
|
|
|
|
d += struct.pack('>I', 1) # part1
|
|
d += struct.pack('>I', 1) # isDlna
|
|
|
|
for v in [b'2622783A', b'nil']:
|
|
d += struct.pack('>H', len(v)) + v
|
|
|
|
uuid4 = params['uuid4'].encode()
|
|
d += struct.pack('>H', len(uuid4)) + uuid4
|
|
|
|
d += struct.pack('>H', 3) + b'nil' # bundleID1
|
|
|
|
for v in [b'v0.1.000', b'com.cctv.yangshipin.app.iphone',
|
|
b'4330403', b'ex_json_bus', b'ex_json_vs']:
|
|
d += struct.pack('>H', len(v)) + v
|
|
|
|
cgt = params['ck_guard_time'].encode()
|
|
d += struct.pack('>H', len(cgt)) + cgt
|
|
|
|
buf = struct.pack('>H', len(d)) + d
|
|
sig = self._calc_sig(list(buf))
|
|
return buf[:18] + struct.pack('>I', sig) + buf[22:]
|
|
|
|
def _gen_ckey(self, cnlid):
|
|
ts = int(time.time())
|
|
cgt = self._gen_guard_time(ts, self.guid)
|
|
params = {
|
|
'Platform': 4330403,
|
|
'Timestamp': ts,
|
|
'Sdtfrom': 'dcgh',
|
|
'vid': cnlid,
|
|
'guid': self.guid,
|
|
'appVer': 'V8.22.1035.3031',
|
|
'randFlag': '_zj1A5Gh6QYcxWjIUGos2w==',
|
|
'uuid4': '57eab0c4-2c58-44c6-8ae9-dd2757525dc5',
|
|
'ck_guard_time': cgt,
|
|
}
|
|
pkt = self._build_pkt(params)
|
|
return {'ckey': self._encrypt_ckey(pkt), 'params': params} |