torrent_to_magnet_batch.py(файл создан)
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| 1 | + | import subprocess | |
| 2 | + | import sys | |
| 3 | + | import os | |
| 4 | + | import re | |
| 5 | + | import urllib.parse | |
| 6 | + | ||
| 7 | + | """ | |
| 8 | + | torrent_to_magnet_batch.py | |
| 9 | + | ||
| 10 | + | 功能： | |
| 11 | + | 批量扫描指定目录及其所有子目录下的 .torrent 文件， | |
| 12 | + | 使用 aria2c 将每个 .torrent 文件转换成磁力链接（magnet URI）， | |
| 13 | + | 并尝试从磁力链接中提取显示名称 (dn) 作为新的文件名重命名原 .torrent 文件。 | |
| 14 | + | ||
| 15 | + | 最终将所有成功转换的文件名及对应的磁力链接按文件名排序，写入指定的日志文件。 | |
| 16 | + | 每个条目格式为： | |
| 17 | + | 文件名 | |
| 18 | + | 磁力链接 | |
| 19 | + | ||
| 20 | + | 条目之间以空行分隔。 | |
| 21 | + | ||
| 22 | + | 转换失败的文件会在日志中标注为“Failed to convert”。 | |
| 23 | + | ||
| 24 | + | 用法： | |
| 25 | + | python torrent_to_magnet_batch.py <目录路径> | |
| 26 | + | ||
| 27 | + | 例如： | |
| 28 | + | python torrent_to_magnet_batch.py /path/to/torrents | |
| 29 | + | ||
| 30 | + | 依赖： | |
| 31 | + | - Python 3 标准库 | |
| 32 | + | - 系统需安装 aria2c 命令行工具，并确保可通过环境变量调用 | |
| 33 | + | ||
| 34 | + | 限制： | |
| 35 | + | - 磁力链接中默认不包含文件大小，脚本不尝试获取或记录文件大小信息。 | |
| 36 | + | - 需要网络环境正常，aria2c 能够成功下载种子元信息(metadata)才能正确提取磁力链接。 | |
| 37 | + | - 如果 aria2c 不可用或转换失败，该文件会被记录为转换失败。 | |
| 38 | + | ||
| 39 | + | 日志输出： | |
| 40 | + | 输出日志文件路径为固定名称 output.log，位于当前运行目录。 | |
| 41 | + | ||
| 42 | + | 示例输出： | |
| 43 | + | Ubuntu 20.04 ISO | |
| 44 | + | magnet:?xt=urn:btih:... | |
| 45 | + | ||
| 46 | + | Another File | |
| 47 | + | magnet:?xt=urn:btih:... | |
| 48 | + | ||
| 49 | + | 作者： | |
| 50 | + | ChatGPT（OpenAI） | |
| 51 | + | ||
| 52 | + | 日期： | |
| 53 | + | 2025年7月27日 | |
| 54 | + | """ | |
| 55 | + | ||
| 56 | + | ||
| 57 | + | def extract_dn_from_magnet(magnet_link): | |
| 58 | + | """Extract the 'dn' (display name) from magnet URI""" | |
| 59 | + | parsed = urllib.parse.urlparse(magnet_link) | |
| 60 | + | params = urllib.parse.parse_qs(parsed.query) | |
| 61 | + | dn = params.get('dn', [None])[0] | |
| 62 | + | return dn | |
| 63 | + | ||
| 64 | + | def torrent_to_magnet(torrent_file): | |
| 65 | + | try: | |
| 66 | + | if not os.path.exists(torrent_file): | |
| 67 | + | return None, None, None | |
| 68 | + | ||
| 69 | + | subprocess.run(['aria2c', '--version'], capture_output=True, check=True) | |
| 70 | + | ||
| 71 | + | cmd = ['aria2c', '--bt-metadata-only=true', '--bt-save-metadata=false', | |
| 72 | + | '--show-files=true', torrent_file] | |
| 73 | + | ||
| 74 | + | result = subprocess.run(cmd, capture_output=True, text=True) | |
| 75 | + | ||
| 76 | + | if result.returncode != 0: | |
| 77 | + | return None, None, None | |
| 78 | + | ||
| 79 | + | output = result.stdout | |
| 80 | + | ||
| 81 | + | # Extract magnet link | |
| 82 | + | magnet_link = None | |
| 83 | + | for line in output.splitlines(): | |
| 84 | + | if line.startswith('Magnet URI:'): | |
| 85 | + | magnet_link = line.replace('Magnet URI:', '').strip() | |
| 86 | + | break | |
| 87 | + | ||
| 88 | + | # Extract actual name from .torrent (fallback: filename) | |
| 89 | + | name = os.path.splitext(os.path.basename(torrent_file))[0] | |
| 90 | + | ||
| 91 | + | # Extract size | |
| 92 | + | total_size = 0 | |
| 93 | + | file_line_pattern = re.compile(r'^\s+\d+\|\s+(.+?)\s+\|\s+([\d.]+)\s+([A-Z]+)$') | |
| 94 | + | ||
| 95 | + | for line in output.splitlines(): | |
| 96 | + | match = file_line_pattern.match(line) | |
| 97 | + | if match: | |
| 98 | + | size_value = float(match.group(2)) | |
| 99 | + | unit = match.group(3) | |
| 100 | + | total_size += size_to_bytes(size_value, unit) | |
| 101 | + | ||
| 102 | + | size_str = human_readable_size(total_size) if total_size > 0 else "Unknown" | |
| 103 | + | ||
| 104 | + | return name, magnet_link, size_str | |
| 105 | + | ||
| 106 | + | except Exception: | |
| 107 | + | return None, None, None | |
| 108 | + | ||
| 109 | + | def size_to_bytes(value, unit): | |
| 110 | + | units = ['B', 'KB', 'MB', 'GB', 'TB'] | |
| 111 | + | try: | |
| 112 | + | index = units.index(unit.upper()) | |
| 113 | + | return int(value * (1024 ** index)) | |
| 114 | + | except ValueError: | |
| 115 | + | return 0 | |
| 116 | + | ||
| 117 | + | def human_readable_size(size_bytes): | |
| 118 | + | for unit in ['B', 'KB', 'MB', 'GB', 'TB']: | |
| 119 | + | if size_bytes < 1024.0: | |
| 120 | + | return f"{size_bytes:.2f} {unit}" | |
| 121 | + | size_bytes /= 1024.0 | |
| 122 | + | return f"{size_bytes:.2f} PB" | |
| 123 | + | ||
| 124 | + | def process_directory(directory, log_file_path): | |
| 125 | + | results = [] | |
| 126 | + | ||
| 127 | + | for root, _, files in os.walk(directory): | |
| 128 | + | for file in files: | |
| 129 | + | if file.lower().endswith('.torrent'): | |
| 130 | + | torrent_path = os.path.join(root, file) | |
| 131 | + | name, magnet, _ = torrent_to_magnet(torrent_path) | |
| 132 | + | ||
| 133 | + | if name and magnet: | |
| 134 | + | real_name = extract_dn_from_magnet(magnet) | |
| 135 | + | if real_name: | |
| 136 | + | new_filename = f"{real_name}.torrent" | |
| 137 | + | new_path = os.path.join(root, new_filename) | |
| 138 | + | ||
| 139 | + | if not os.path.exists(new_path): | |
| 140 | + | try: | |
| 141 | + | os.rename(torrent_path, new_path) | |
| 142 | + | torrent_path = new_path | |
| 143 | + | name = real_name | |
| 144 | + | except Exception as e: | |
| 145 | + | print(f"Failed to rename: {file} -> {new_filename}: {e}") | |
| 146 | + | else: | |
| 147 | + | print(f"Skip rename: {new_filename} already exists") | |
| 148 | + | ||
| 149 | + | results.append((name, magnet)) | |
| 150 | + | else: | |
| 151 | + | results.append((file, "Failed to convert")) | |
| 152 | + | ||
| 153 | + | # 按文件名排序（忽略大小写） | |
| 154 | + | results.sort(key=lambda x: x[0].lower()) | |
| 155 | + | ||
| 156 | + | # 写入日志 | |
| 157 | + | with open(log_file_path, 'w', encoding='utf-8') as log_file: | |
| 158 | + | for name, magnet in results: | |
| 159 | + | log_file.write(f"{name}\n{magnet}\n\n") | |
| 160 | + | ||
| 161 | + | def main(): | |
| 162 | + | if len(sys.argv) < 2: | |
| 163 | + | print("Usage: python torrent_to_magnet_batch.py <directory_path> [output.log]") | |
| 164 | + | sys.exit(1) | |
| 165 | + | ||
| 166 | + | directory = sys.argv[1] | |
| 167 | + | log_file_path = sys.argv[2] if len(sys.argv) >= 3 else "output.log" | |
| 168 | + | ||
| 169 | + | if not os.path.isdir(directory): | |
| 170 | + | print(f"Error: '{directory}' is not a valid directory") | |
| 171 | + | sys.exit(1) | |
| 172 | + | ||
| 173 | + | process_directory(directory, log_file_path) | |
| 174 | + | print(f"Conversion completed. Output saved to: {log_file_path}") | |
| 175 | + | ||
| 176 | + | if __name__ == "__main__": | |
| 177 | + | main() | |
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