c# – ICSharpCode.SharpZipLib验证zip文件

前端之家收集整理的这篇文章主要介绍了c# – ICSharpCode.SharpZipLib验证zip文件前端之家小编觉得挺不错的,现在分享给大家,也给大家做个参考。
对C#使用ICSharpCode.SharpZipLib,我如何验证传递的文件实际上是一个有效的zip文件(不是右键单击并重命名为.zip的东西)?
[HttpPost]
        public ActionResult Upload(HttpPostedFileBase fileData)
        {
                if (fileData != null && fileData.ContentLength > 0)
                {
                    if (Path.GetExtension(fileData.FileName) == ".zip")
                    {
                        var zipFile = Server.MapPath("~/Content/uploads/" + Path.GetFileName(fileData.FileName));
                        fileData.SaveAs(zipFile);

                        FileStream fs = System.IO.File.OpenRead(zipFile);
                        ZipFile zf = new ZipFile(fs);

                        foreach (ZipEntry zipEntry in zf)
                        {
                            if (zipEntry.Name.EndsWith(".htm") || zipEntry.Name.EndsWith(".html"))
                            {
                                 return Json(new { success = true });                             
                            }
                        }
                        fs.Close();
                        fs.Dispose();
                        System.IO.File.Delete(zipFile);
                    }
                    else
                    {
                        var fileName = Server.MapPath("~/Content/uploads/" + Path.GetFileName(fileData.FileName));
                        fileData.SaveAs(fileName);                           
                        return Json(new { success = true });
                    }
                }                    
                return Json(new { success = false });

    }

解决方法

您可以使用ZipFile.TestArchive方法.以下是在SharpZipLib中声明它的方式:
/// <summary>
/// Test an archive for integrity/validity
/// </summary>
/// <param name="testData">Perform low level data Crc check</param>
/// <returns>true if all tests pass,false otherwise</returns>
/// <remarks>Testing will terminate on the first error found.</remarks>
public bool TestArchive(bool testData)
{
    return TestArchive(testData,TestStrategy.FindFirstError,null);
}

用法示例:

ZipFile zipFile = new ZipFile("archive.zip");
Console.WriteLine("Archive validation result: {0}",zipFile.TestArchive(true));
原文链接:https://www.f2er.com/csharp/97650.html

猜你在找的C#相关文章