public async Task <HttpReponseViewModel <GenerateMD5ToBurstResViewModel> > GetMD5ToBurstData(Guid id)
{
HttpReponseViewModel <GenerateMD5ToBurstResViewModel> res = new HttpReponseViewModel <GenerateMD5ToBurstResViewModel>();
var t = await _baseDomain.GetEntity(id);
if (t != null)
{
var filePath = t.RelationFilePath;
var fileName = t.FileName + "." + t.FileExt;
var len = FileUtil.GetLength(filePath);
res.Data = new GenerateMD5ToBurstResViewModel()
{
Identifier = FileUploadUtil.GetMD5HashFromFile(filePath),
TotalSize = len,
FilePathUrl = filePath,
FileName = fileName,
FileRanges = GetFileRangeData(len)
};
}
else
{
res.Data = null;
res.Message = "该文件不存在";
}
res.Code = 200;
res.ResultSign = Core.Enum.ResultSign.Info;
return(res);
}
public bool VaildMergeFile(FileUploadReqViewModel chunkFile)
{
var clientFileName = chunkFile.FileName;
// 文件字节总数
var fileTotalSize = chunkFile.TotalSize;
var targetFile = new FileInfo(chunkFile.RelativePath);
var streamTotalSize = targetFile.Length;
try
{
if (streamTotalSize != fileTotalSize)
{
throw new Exception("[" + clientFileName + "]文件上传时发生损坏，请重新上传");
}
// 对文件进行 MD5 唯一验证
var identifier = chunkFile.Identifier;
var fileMd5 = FileUploadUtil.GetMD5HashFromFile(chunkFile.RelativePath);
if (!fileMd5.Equals(identifier))
{
throw new Exception("[" + clientFileName + "],文件MD5值不对等");
}
return(true);
}
catch (Exception ex)
{
// 删除本地错误文件
File.Delete(chunkFile.RelativePath);
return(false);
}
}
public async Task <HttpReponseViewModel <GenerateMD5ToBurstResViewModel> > GetMD5ToBurstData(string filePath)
{
filePath = @"D:\Files\BI_V2.0.zip";
//filePath = @"D:\Files\Files.zip";
HttpReponseViewModel <GenerateMD5ToBurstResViewModel> res = new HttpReponseViewModel <GenerateMD5ToBurstResViewModel>();
return(await Task.Run(() =>
{
long len = FileUtil.GetLength(filePath);
res.Code = 20000;
res.Data = new GenerateMD5ToBurstResViewModel()
{
Identifier = FileUploadUtil.GetMD5HashFromFile(filePath),
TotalSize = len,
FileName = filePath,
FileRanges = _downloadServices.GetFileRangeData(len)
};
return res;
}));
}
/// <summary>
/// 文件检查
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public HttpReponseViewModel <List <int> > CheckFileState(HttpRequest request)
{
FileUploadReqViewModel fileUpload = new FileUploadReqViewModel();
if (request.Query.Count() > 0)
{
foreach (var item in request.Query.ToList())
{
if (item.Key == "chunkNumber")
{
fileUpload.ChunkNumber = Convert.ToInt32(item.Value);
}
if (item.Key == "chunkSize")
{
fileUpload.ChunkSize = Convert.ToInt32(item.Value);
}
if (item.Key == "currentChunkSize")
{
fileUpload.CurrentChunkSize = Convert.ToInt32(item.Value);
}
if (item.Key == "totalSize")
{
fileUpload.TotalSize = Convert.ToInt32(item.Value);
}
if (item.Key == "identifier")
{
fileUpload.Identifier = item.Value;
}
if (item.Key == "filename")
{
fileUpload.FileName = item.Value;
}
if (item.Key == "relativePath")
{
fileUpload.RelativePath = item.Value;
}
if (item.Key == "totalChunks")
{
fileUpload.TotalChunks = Convert.ToInt32(item.Value);
}
if (item.Key == "fileExt")
{
fileUpload.FileExt = item.Value;
}
if (item.Key == "fileType")
{
fileUpload.FileType = item.Value;
}
if (item.Key == "fileCategory")
{
fileUpload.FileCategory = item.Value;
}
}
}
var webRoot = AppConfigUtil.FilePath;
FileUploadResViewModel fileUploadRes = new FileUploadResViewModel();
fileUploadRes.FState = 0;//新文件
//状态
var fstate = 0;
List <int> uploadedList = new List <int>();
var md5Folder = FileUploadUtil.GetFileMd5Folder(webRoot, fileUpload.Identifier);
//判断这个md5临时文件夹存不存在 存在证明可以用断点续传 返回已经上传分片文件
if (Directory.Exists(md5Folder))
{
fstate = 1;//可以断点续传
//删除最后一块分片 防止出现破损
uploadedList = FileUploadUtil.DelLastSourceFileRef(md5Folder);
}
else
{
//判断改文件存不存在
var path = FileUploadUtil.GetPath(webRoot) + fileUpload.FileName;
if (FileUtil.IsExistFile(path))
{
//判断该文件是不是已经上传过了 上传过了就秒传 直接拿已经存在的地址url
var fileMd5 = FileUploadUtil.GetMD5HashFromFile(path);
if (fileMd5.Equals(fileUpload.Identifier))
{
fstate = 2;//已经存在该文件
fileUploadRes.FilePathUrl = path;
}
}
}
return(new HttpReponseViewModel <List <int> >
{
Code = 200,
Data = uploadedList,
Flag = true,
ResultSign = (ResultSign)fstate
});
}
