python转换磁力链接为bt种子文件

2014年11月28日 发表评论 阅读评论

前天,在 Python将BT种子文件转换为磁力链的两种方法 篇中根据网上的方法完成后bt种子转换为磁力链的过程,今天要做的是一个反过程,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]

以上这段代码非原创,来自于github上。




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