[英]Uri encoding, file download doesn't work with , and whitespace
I have an asp.net webpage that allows downloading files. 我有一个允许下载文件的asp.net网页。
When i had the problem of downloading a file with whitespace(Test 1 4 3.txt)
it will turn the file into: Test+1+4+3.txt
当我在下载带有
whitespace(Test 1 4 3.txt)
的文件whitespace(Test 1 4 3.txt)
时遇到问题,它将把文件变成: Test+1+4+3.txt
I used: 我用了:
_Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(_fileName, System.Text.Encoding.UTF8));
And it solved the issue. 它解决了问题。
Now i have a new issue: When a file contains ,
it changes it into %2c
and i the UrlEncode doesn't fix it. 现在,我遇到了一个新问题:文件包含时
,
它将其更改为%2c
,而UrlEncode无法修复它。 i Tried using: 我尝试使用:
_Response.AddHeader("Content-Disposition", "attachment;filename=" + Uri.EscapeDataString(_fileName));
But it's the old setting and it doesn't support whitespace. 但这是旧设置,不支持空格。
What can i do to solve such a case? 我该怎么办才能解决这种情况? Should i use regex / switch?
我应该使用正则表达式/开关吗?
This is my function: 这是我的功能:
public static bool ResponseFile(HttpRequest _Request, HttpResponse _Response, string _fileName, string _fullPath, long _speed = 1024000)
{
try
{
FileStream myFile = new FileStream(_fullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
BinaryReader br = new BinaryReader(myFile);
try
{
_Response.AddHeader("Accept-Ranges", "bytes");
_Response.Buffer = false;
long fileLength = myFile.Length;
long startBytes = 0;
int pack = 10240; //10K bytes
int sleep = (int)Math.Floor((double)(1000 * pack / _speed)) + 1;
if (_Request.Headers["Range"] != null)
{
_Response.StatusCode = 206;
string[] range = _Request.Headers["Range"].Split(new char[] { '=', '-' });
startBytes = Convert.ToInt64(range[1]);
}
_Response.AddHeader("Content-Length", (fileLength - startBytes).ToString());
if (startBytes != 0)
{
_Response.AddHeader("Content-Range", string.Format(" bytes {0}-{1}/{2}", startBytes, fileLength - 1, fileLength));
}
_Response.AddHeader("Connection", "Keep-Alive");
_Response.ContentType = "application/octet-stream";
//Old didn't work with both + and ,
//_Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(_fileName, System.Text.Encoding.UTF8));
_Response.AddHeader("Content-Disposition", "attachment;filename=" + Uri.EscapeDataString(_fileName));
br.BaseStream.Seek(startBytes, SeekOrigin.Begin);
int maxCount = (int)Math.Floor((double)((fileLength - startBytes) / pack)) + 1;
for (int i = 0; i < maxCount; i++)
{
if (_Response.IsClientConnected)
{
_Response.BinaryWrite(br.ReadBytes(pack));
Thread.Sleep(sleep);
}
else
{
i = maxCount;
}
}
}
catch
{
return false;
}
finally
{
br.Close();
myFile.Close();
}
}
catch
{
return false;
}
return true;
}
这解决了它:_Response.AddHeader(“ Content-Disposition”,“ attachment; filename = \\”“ + _fileName +” \\“”);
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