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down5sing.py
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#! /usr/bin/python3
import urllib.request
from urllib.request import urlopen
from urllib.error import HTTPError
import urllib.parse
import os, sys
import re
import json
from time import time
import base64
doc = '''\
input.txt中接受两种形式的输入文本：一种为点击插件的“查看下载地址”按钮后显现的 歌曲名 歌曲地址 列表组成的多行字符串（一般来说即为直接将该窗格内所有内容复制得到的内容，只复制地址行也可以下载，这时文件名会从地址中获取）；第二种为点击插件的导出歌曲按钮后显现的由歌曲ID和类型组成的单行字符串。
前者形如：
第一首歌
第二首歌
http://data.5sing.kgimg.com/xxx
http://data.5sing.kgimg.com/xxxx
http://data.5sing.kgimg.com/xxxxx
后者形如：
yc$1234567$fc$9998765$bz$1111111
''';
count = 0;
def fix(aIndex):
sType, sId = aIndex
sApiSongSrc = 'http://service.5sing.kugou.com/song/getsongurl?songid={}&songtype={}&from=web&version=6.6.72' # song.nId, song.sType
sUrl = sApiSongSrc.format(sId, sType)
sUrl += '&_={}'.format(str(int(time()*1000)));
with urlopen(sUrl) as res:
sData = res.read().decode('utf-8');
mData = json.loads(sData.strip('()'));
sUrl = mData['data']['squrl'];
assert sUrl;
return sUrl
# sUrl = 'http://5sing.kugou.com/' + aIndex[0] + '/' + aIndex[1] + '.html'
# with urlopen(sUrl) as page:
# while (1):
# line = page.readline()
# if (not line or b'ticket' in line): break
# data = re.search(rb'ticket.+?:.*?[\'"](.+)[\'"]', line).group(1)
# data = json.loads(base64.b64decode(data).decode('utf-8'))
# return data['file'];
def download(sName, sUrl, aIndex, target):
global count;
filepath = os.path.join(target, re.sub(r'[\\/:*?<>"|\t]', ' ', sName));
while (os.path.exists(filepath)):
filepath = re.sub(r'(\.\w+)?$', r'_\1', filepath, count=1);
try:
mp3 = urllib.request.urlretrieve(sUrl, filename=filepath);
print('已下载：' + os.path.abspath(mp3[0]))
count += 1;
except HTTPError as e:
print('找不到歌曲地址： ' + sName)
global aErrorFile;
aErrorFile.append((aIndex, sName));
def read(sFile=None) -> '2-tuple of lists':
if sFile == None:
sInfo = input('请输入要下载的歌曲信息，以回车键结束：');
else:
try:
with open(sFile, 'r', encoding='utf-8-sig') as file:
sInfo = file.read();
except UnicodeDecodeError:
with open(sFile, 'r') as file:
sInfo = file.read();
result = re.search(r'^\s*((fc|yc|bz)\$\d+(\$(fc|yc|bz)\$\d+)*)\s*$', sInfo);
if result:
# utilise 5sing api to query with ordinal number
values = {
'songinfo': result.group(1),
'_': str(int(time()*1000))
};
sQuery = urllib.parse.urlencode(values);
# sUrl = r'http://service.5sing.kugou.com/song/find?songinfo=' + result.group(1) + '&_=' + str(int(time()*1000));
sUrl = r'http://service.5sing.kugou.com/song/find';
request = urllib.request.Request(sUrl + '?' + sQuery);
with urlopen(request) as file:
aSongs = json.loads(file.read().decode('utf-8'));
aNames = []
aUrls = [];
aIndices = re.findall(r'(fc|yc|bz)\$(\d+)', result.group(1));
# [('fc', '123434'), ...]
mIndices = {}
for x in aSongs:
sIndex = '{}${}'.format(x['songtype'], x['id']);
sName = x['songname'] + x['sign'][-4:];
sUrl = x['sign'];
mIndices[sIndex] = [sName, sUrl];
for sType, sId in aIndices:
sIndex = '{}${}'.format(sType, sId);
aNames.append(mIndices[sIndex][0]);
aUrls.append(mIndices[sIndex][1]);
else:
# download from url directly
delimiter = sInfo.find('http://');
r1 = re.compile(r'^\s*(\S.*?)\s*$', re.M);
aNames = r1.findall(sInfo[:delimiter]);
r2 = re.compile(r'^\s*(https?://.+/([^/]+?(\.mp3|wma)))\s*$', re.M);
aUrls = r2.findall(sInfo[delimiter:]);
n1, n2, i = len(aNames), len(aUrls), 0;
while i < n2:
if (i < n1): aNames[i] += aUrls[i][2];
else: aNames[i:] = [aUrls[i][1]];
aUrls[i] = aUrls[i][0];
i += 1;
aIndices = [None for x in range(n2)];
return (aNames, aUrls, aIndices);
def main():
global count;
print('程序运行开始');
global aErrorFile;
aErrorFile = [];
target = sys.argv[0] if sys.argv[0] else os.getcwd();
target = target if os.path.isdir(target) else os.path.split(target)[0];
# target is current directory then
sFile = os.path.join(target, 'input.txt')
if os.path.isfile(sFile):
aNames, aUrls, aIndices = read(sFile);
else:
print('找不到歌曲信息文件，请将存有歌曲信息的文件以文件名 input.txt 保存到脚本的同目录下。');
print(doc);
print('转为手动信息输入模式。')
aNames, aUrls, aIndices = read();
assert(len(aNames) == len(aUrls) == len(aIndices));
print('歌曲信息读取完成。');
print('将要下载：');
print(*aNames, sep=' , ');
target = os.path.join(target, '歌曲下载目录');
if not os.path.isdir(target):
os.mkdir(target);
print('正在下载……');
for x in zip(aNames, aUrls, aIndices):
download(*x, target);
print('\n下载已完成。');
if (aErrorFile):
print('\n以下歌曲下载失败： ', *aErrorFile, sep='\n');
print('\n尝试通过网页搜索下载地址……');
aError = aErrorFile;
aErrorFile = [];
for x in aError:
if (x[0]):
sUrl = fix(x[0]);
download(x[1], sUrl, x[0], target);
else:
aErrorFile.append(x);
if (aErrorFile):
print('\n搜索结束，最终下载失败歌曲如下：', *aErrorFile, sep='\n');
else:
print('\n搜索结束，所有歌曲下载成功。');
input('总共下载歌曲 ' + str(count) + ' 首，按回车键退出。');
if __name__ == '__main__':
main();