public void ApplyEffects(DragEventArgs e)
{
string[] fileNameArray = (string[])e.Data.GetData(DataFormats.FileDrop, false);
if (!e.Data.GetDataPresent(System.Windows.Forms.DataFormats.FileDrop))
{
/* ファイル以外のドラッグは受け入れない */
e.Effect = DragDropEffects.None;
return;
}
if (!MultiFile && fileNameArray.Length > 1)
{
/* 複数ファイルのドラッグは受け入れない */
e.Effect = DragDropEffects.None;
return;
}
foreach (var item in fileNameArray)
{
if (!AllowExt.Select(x => x.ToLower()).Contains(Path.GetExtension(item).ToLower()))
{
/* 拡張子が.xls以外は受け入れない */
e.Effect = DragDropEffects.None;
return;
}
}
/* 上記以外は受け入れる */
e.Effect = DragDropEffects.All;
}
/// <summary>
/// 检查上传文件是否合法
/// </summary>
/// <param name="fileBuffer">文件流</param>
/// <param name="fileExt">文件后缀</param>
/// <returns>是否合法</returns>
private CheckResult CheckedUploadFile(byte[] fileBuffer, string fileExt)
{
if (fileBuffer.Length == 0)
{
return(CheckResult.Fail("无数据提交"));
}
if (fileBuffer.Length > this.MaxFilesize)
{
return(CheckResult.Fail("文件大小超过" + this.MaxFilesize + "字节"));
}
if (!AllowExt.Contains(fileExt))
{
return(CheckResult.Fail("上传文件扩展名必需为：" + string.Join(",", AllowExt)));
}
return(CheckResult.Success());
}
public void ProcessRequest(HttpContext context)
{
context.Response.Charset = "UTF-8";
byte[] file;
string localFileName = string.Empty;
string err = string.Empty;
string subFolder = string.Empty;
string fileFolder = string.Empty;
string filePath = string.Empty;;
var disposition = context.Request.ServerVariables["HTTP_CONTENT_DISPOSITION"];
if (disposition != null)
{
// HTML5上传
file = context.Request.BinaryRead(context.Request.TotalBytes);
localFileName = Regex.Match(disposition, "filename=\"(.+?)\"").Groups[1].Value;// 读取原始文件名
}
else
{
HttpFileCollection filecollection = context.Request.Files;
HttpPostedFile postedfile = filecollection.Get(this.FileInputName);
// 读取原始文件名
localFileName = Path.GetFileName(postedfile.FileName);
// 初始化byte长度.
file = new Byte[postedfile.ContentLength];
// 转换为byte类型
System.IO.Stream stream = postedfile.InputStream;
stream.Read(file, 0, postedfile.ContentLength);
stream.Close();
filecollection = null;
}
var ext = localFileName.Substring(localFileName.LastIndexOf('.') + 1).ToLower();
if (file.Length == 0)
{
err = "无数据提交";
}
else if (file.Length > this.MaxFilesize)
{
err = "文件大小超过" + this.MaxFilesize + "字节";
}
else if (!AllowExt.Contains(ext))
{
err = "上传文件扩展名必需为：" + string.Join(",", AllowExt);
}
else
{
var folder = context.Request["subfolder"] ?? "default";
var uploadFolderConfig = UploadConfigContext.UploadConfig.UploadFolders.FirstOrDefault(u => string.Equals(folder, u.Path, StringComparison.OrdinalIgnoreCase));
var dirType = uploadFolderConfig == null ? DirType.Day : uploadFolderConfig.DirType;
//根据配置里的DirType决定子文件夹的层次（月，天，扩展名）
switch (dirType)
{
case DirType.Month:
subFolder = "month_" + DateTime.Now.ToString("yyMM");
break;
case DirType.Ext:
subFolder = "ext_" + ext;
break;
case DirType.Day:
subFolder = "day_" + DateTime.Now.ToString("yyMMdd");
break;
}
fileFolder = Path.Combine(UploadConfigContext.UploadPath,
folder,
subFolder
);
filePath = Path.Combine(fileFolder,
string.Format("{0}{1}.{2}", DateTime.Now.ToString("yyyyMMddhhmmss"), new Random(DateTime.Now.Millisecond).Next(10000), ext)
);
if (!Directory.Exists(fileFolder))
{
Directory.CreateDirectory(fileFolder);
}
var fs = new FileStream(filePath, FileMode.Create, FileAccess.Write);
fs.Write(file, 0, file.Length);
fs.Flush();
fs.Close();
//是图片，即使生成对应尺寸
if (ImageExt.Contains(ext))
{
ThumbnailService.HandleImmediateThumbnail(filePath);
}
this.OnUploaded(context, filePath);
}
file = null;
context.Response.Write(this.GetResult(localFileName, filePath, err));
context.Response.End();
}
/// <summary>
/// Processes the request.
/// </summary>
/// <param name="context">The context.</param>
public void ProcessRequest(HttpContext context)
{
context.Response.Charset = "UTF-8";
byte[] _fileBuffer;
string _localFileName = string.Empty;
string _errMessage = string.Empty;
string _subFolder = string.Empty;
string _fileFolder = string.Empty;
string _filePath = string.Empty;;
var disposition = context.Request.ServerVariables["HTTP_CONTENT_DISPOSITION"];
if (disposition != null)
{
// HTML5上传
_fileBuffer = context.Request.BinaryRead(context.Request.TotalBytes);
_localFileName = Regex.Match(disposition, "filename=\"(.+?)\"").Groups[1].Value;// 读取原始文件名
}
else
{
HttpFileCollection _filecollection = context.Request.Files;
HttpPostedFile _postedfile = _filecollection.Get(this.FileInputName);
// 读取原始文件名
_localFileName = Path.GetFileName(_postedfile.FileName);
// 初始化byte长度.
_fileBuffer = new byte[_postedfile.ContentLength];
// 转换为byte类型
using (Stream stream = _postedfile.InputStream)
{
stream.Read(_fileBuffer, 0, _postedfile.ContentLength);
_filecollection = null;
}
}
string _fileExt = _localFileName.Substring(_localFileName.LastIndexOf('.') + 1).ToLower();
if (_fileBuffer.Length == 0)
{
_errMessage = "无数据提交";
}
else if (_fileBuffer.Length > this.MaxFilesize)
{
_errMessage = "文件大小超过" + this.MaxFilesize + "字节";
}
else if (!AllowExt.Contains(_fileExt))
{
_errMessage = "上传文件扩展名必需为：" + string.Join(",", AllowExt);
}
else
{
string _folder = context.Request["subfolder"] ?? "default";
UploadFolder _uploadFolderConfig = UploadConfigContext.UploadConfig.UploadFolders.FirstOrDefault(u => string.Equals(_folder, u.Path, StringComparison.OrdinalIgnoreCase));
DirType _dirType = _uploadFolderConfig == null ? DirType.Day : _uploadFolderConfig.DirType;
//根据配置里的DirType决定子文件夹的层次（月，天，扩展名）
switch (_dirType)
{
case DirType.Month:
_subFolder = "month_" + DateTime.Now.ToString("yyMM");
break;
case DirType.Ext:
_subFolder = "ext_" + _fileExt;
break;
case DirType.Day:
_subFolder = "day_" + DateTime.Now.ToString("yyMMdd");
break;
}
//fileFolder = Path.Combine(UploadConfigContext.UploadPath,
// folder,
// subFolder
// );
_fileFolder = CombinePaths(UploadConfigContext.UploadPath,
_folder,
_subFolder);
_filePath = Path.Combine(_fileFolder,
string.Format("{0}{1}.{2}", DateTime.Now.ToString("yyyyMMddhhmmss"), new Random(DateTime.Now.Millisecond).Next(10000), _fileExt)
);
if (!Directory.Exists(_fileFolder))
{
Directory.CreateDirectory(_fileFolder);
}
using (FileStream fs = new FileStream(_filePath, FileMode.Create, FileAccess.Write))
{
fs.Write(_fileBuffer, 0, _fileBuffer.Length);
fs.Flush();
}
//是图片，即使生成对应尺寸
if (ImageExt.Contains(_fileExt))
{
ThumbnailService.HandleImmediateThumbnail(_filePath);
}
this.OnUploaded(context, _filePath);
}
_fileBuffer = null;
context.Response.Write(this.GetResult(_localFileName, _filePath, _errMessage));
context.Response.End();
}
public void ProcessRequest(HttpContext context)
{
byte[] buffer;
context.Response.Charset = "UTF-8";
string localFileName;
var err = string.Empty;
var str3 = string.Empty;
var path = string.Empty;
var input = context.Request.ServerVariables["HTTP_CONTENT_DISPOSITION"];
if (input != null)
{
buffer = context.Request.BinaryRead(context.Request.TotalBytes);
localFileName = Regex.Match(input, "filename=\"(.+?)\"").Groups[1].Value;
}
else
{
var file = context.Request.Files.Get(FileInputName);
localFileName = Path.GetFileName(file.FileName);
buffer = new byte[file.ContentLength];
var inputStream = file.InputStream;
inputStream.Read(buffer, 0, file.ContentLength);
inputStream.Close();
}
var str7 = localFileName.Substring(localFileName.LastIndexOf('.') + 1).ToLower();
if (buffer.Length == 0)
{
err = "无数据提交";
}
else if (buffer.Length > MaxFilesize)
{
err = "文件大小超过" + MaxFilesize + "字节";
}
else if (!AllowExt.Contains(str7))
{
err = "上传文件扩展名必需为：" + string.Join(",", AllowExt);
}
else
{
var folder = context.Request["subfolder"] ?? "default";
var Ufolder = UploadConfigContext.UploadConfig.UploadFolders.FirstOrDefault(u => string.Equals(folder, u.Path, StringComparison.OrdinalIgnoreCase));
switch ((Ufolder.DirType))
{
case DirType.Day:
str3 = "day_" + DateTime.Now.ToString("yyMMdd");
break;
case DirType.Month:
str3 = "month_" + DateTime.Now.ToString("yyMM");
break;
case DirType.Ext:
str3 = "ext_" + str7;
break;
}
var str4 = Path.Combine(UploadConfigContext.UploadPath, folder, str3);
path = Path.Combine(str4, string.Format("{0}{1}.{2}", DateTime.Now.ToString("yyyyMMddhhmmss"), new Random(DateTime.Now.Millisecond).Next(0x2710), str7));
if (!Directory.Exists(str4))
{
Directory.CreateDirectory(str4);
}
var stream2 = new FileStream(path, FileMode.Create, FileAccess.Write);
stream2.Write(buffer, 0, buffer.Length);
stream2.Flush();
stream2.Close();
if (ImageExt.Contains(str7))
{
ThumbnailService.HandleImmediateThumbnail(path);
}
OnUploaded(context, path);
}
context.Response.Write(GetResult(localFileName, path, err));
context.Response.End();
}
