使用Python实现BT种子和磁力链接的相互转换
bt种子文件转换为磁力链接
BT种子文件相对磁力链来说存储不方便，而且在网站上存放BT文件容易引起版权纠纷，而磁力链相对来说则风险小一些。而且很多论坛或者网站限制了文件上传的类型，分享一个BT种子还需要改文件后缀或者压缩一次，其他人需要下载时候还要额外多一步下载种子的操作。
所以将BT种子转换为占用空间更小，分享更方便的磁力链还是有挺大好处的。
首先一个方案是使用bencode这个插件，通过pip方式安装或者自行下载源文件https://pypi.python.org/pypi/bencode/1.0通过python setup.py install方式安装均可。
相应的将BT种子转换为磁力链代码为：
import bencode, hashlib, base64, urllib
torrent = open('ubuntu-12.04.2-server-amd64.iso.torrent', 'rb').read()
metadata = bencode.bdecode(torrent)
hashcontents = bencode.bencode(metadata['info'])
digest = hashlib.sha1(hashcontents).digest()
b32hash = base64.b32encode(digest)
params = {'xt': 'urn:btih:%s' % b32hash,
'dn': metadata['info']['name'],
'tr': metadata['announce'],
'xl': metadata['info']['length']}
paramstr = urllib.urlencode(params)
magneturi = 'magnet:?%s' % paramstr
print magneturi
还有另外一个效率相对较高，而且更方便的方案是安装libtorrent，在ubuntu只需要apt-get install python-libtorrent即可对应转换磁力链的代码为：
import libtorrent as bt
info = bt.torrent_info('test.torrent')
print "magnet:?xt=urn:btih:%s&dn=%s" % (info.info_hash(), info.name())
转换磁力链接为bt种子文件
下面来看一个反过程，将磁力链转化为种子文件。
1、需要先安装python-libtorrent包 ，在ubuntu环境下，可以通过以下指令完成安装：
# sudo apt-get install python-libtorrent
2、代码如下：
#!/usr/bin/env python
import shutil
import tempfile
import os.path as pt
import sys
import libtorrent as lt
from time import sleep
def magnet2torrent(magnet, output_name=None):
if output_name and \
not pt.isdir(output_name) and \
not pt.isdir(pt.dirname(pt.abspath(output_name))):
print("Invalid output folder: " + pt.dirname(pt.abspath(output_name)))
print("")
sys.exit(0)
tempdir = tempfile.mkdtemp()
ses = lt.session()
params = {
'save_path': tempdir,
'duplicate_is_error': True,
'storage_mode': lt.storage_mode_t(2),
'paused': False,
'auto_managed': True,
'duplicate_is_error': True
}
handle = lt.add_magnet_uri(ses, magnet, params)
print("Downloading Metadata (this may take a while)")
while (not handle.has_metadata()):
try:
sleep(1)
except KeyboardInterrupt:
print("Aborting...")
ses.pause()
print("Cleanup dir " + tempdir)
shutil.rmtree(tempdir)
sys.exit(0)
ses.pause()
print("Done")
torinfo = handle.get_torrent_info()
torfile = lt.create_torrent(torinfo)
output = pt.abspath(torinfo.name() + ".torrent")
if output_name:
if pt.isdir(output_name):
output = pt.abspath(pt.join(
output_name, torinfo.name() + ".torrent"))
elif pt.isdir(pt.dirname(pt.abspath(output_name))):
output = pt.abspath(output_name)
print("Saving torrent file here : " + output + " ...")
torcontent = lt.bencode(torfile.generate())
f = open(output, "wb")
f.write(lt.bencode(torfile.generate()))
f.close()
print("Saved! Cleaning up dir: " + tempdir)
ses.remove_torrent(handle)
shutil.rmtree(tempdir)
return output
def showHelp():
print("")
print("USAGE: " + pt.basename(sys.argv[0]) + " MAGNET [OUTPUT]")
print(" MAGNET\t- the magnet url")
print(" OUTPUT\t- the output torrent file name")
print("")
def main():
if len(sys.argv) < 2:
showHelp()
sys.exit(0)
magnet = sys.argv[1]
output_name = None
if len(sys.argv) >= 3:
output_name = sys.argv[2]
magnet2torrent(magnet, output_name)
if __name__ == "__main__":
main()
3、用法如下
# python Magnet_To_Torrent2.py <magnet link> [torrent file]
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
How to solve the permissions problem encountered when viewing Python version in Linux terminal?
Apr 01, 2025 pm 05:09 PM
Solution to permission issues when viewing Python version in Linux terminal When you try to view Python version in Linux terminal, enter python...
How to efficiently copy the entire column of one DataFrame into another DataFrame with different structures in Python?
Apr 01, 2025 pm 11:15 PM
When using Python's pandas library, how to copy whole columns between two DataFrames with different structures is a common problem. Suppose we have two Dats...
Can Python parameter annotations use strings?
Apr 01, 2025 pm 08:39 PM
Alternative usage of Python parameter annotations In Python programming, parameter annotations are a very useful function that can help developers better understand and use functions...
Python Cross-platform Desktop Application Development: Which GUI Library is the best for you?
Apr 01, 2025 pm 05:24 PM
Choice of Python Cross-platform desktop application development library Many Python developers want to develop desktop applications that can run on both Windows and Linux systems...
Why can't my code get the data returned by the API? How to solve this problem?
Apr 01, 2025 pm 08:09 PM
Why can't my code get the data returned by the API? In programming, we often encounter the problem of returning null values when API calls, which is not only confusing...
How does Uvicorn continuously listen for HTTP requests without serving_forever()?
Apr 01, 2025 pm 10:51 PM
How does Uvicorn continuously listen for HTTP requests? Uvicorn is a lightweight web server based on ASGI. One of its core functions is to listen for HTTP requests and proceed...
How do Python scripts clear output to cursor position at a specific location?
Apr 01, 2025 pm 11:30 PM
How do Python scripts clear output to cursor position at a specific location? When writing Python scripts, it is common to clear the previous output to the cursor position...
Do Google and AWS provide public PyPI image sources?
Apr 01, 2025 pm 05:15 PM
Many developers rely on PyPI (PythonPackageIndex)...
