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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| using System; | ||
| using System.IO; | ||
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|
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| namespace Catswords.DataType.Client.Helper | ||
| { | ||
| public class InfoHashExtractor | ||
| { | ||
| private string FilePath; | ||
|
|
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| public InfoHashExtractor(string filePath) | ||
| { | ||
| FilePath = filePath; | ||
| } | ||
|
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| public string GetString() | ||
| { | ||
| string infoHashString = ""; | ||
|
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| try | ||
| { | ||
| // 토렌트 파일을 바이트 배열로 읽어옴 | ||
| byte[] torrentData = File.ReadAllBytes(FilePath); | ||
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| // 토렌트 파일에서 InfoHash 추출 | ||
| byte[] infoHash = ExtractInfoHash(torrentData); | ||
|
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| // InfoHash를 문자열로 변환하여 출력 | ||
| infoHashString = BitConverter.ToString(infoHash).Replace("-", "").ToLower(); | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| Console.WriteLine("An error occurred: " + ex.Message); | ||
| } | ||
|
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| return infoHashString; | ||
| } | ||
|
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| private byte[] ExtractInfoHash(byte[] torrentData) | ||
| { | ||
| // 토렌트 파일의 구조에 따라 InfoHash 위치 파악 | ||
| int start = Array.IndexOf(torrentData, (byte)'4', 0); | ||
| int end = Array.IndexOf(torrentData, (byte)'e', start); | ||
|
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| // InfoHash 추출 | ||
| byte[] infoHash = new byte[20]; | ||
| Array.Copy(torrentData, start + 1, infoHash, 0, 20); | ||
|
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| return infoHash; | ||
| } | ||
| } | ||
| } |
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