Good day, asp.net c#, Framework 4.0
\r\nIm using Ionic.Zip for compress data file (uploader handler) to fly.
\r\nUpload large files.
\r\nIf file uploaded full content (not chunks) - to be Ok, but if file upload with chunks...i have to problem.
\r\nHow i can add all chunks upload file to archive (one file - one entry)? without saving the file itself drive.
\r\nsorry for my english.
\r\nparts of my code:
\r\nCreate temp file with lenght = currents chunk
\r\nusing (FileStream fs = new FileStream(Path.Combine(pathToCreate, "chunkfile"), FileMode.Create))\r\n
{
buffer = new byte[fileUpload.InputStream.Length];
fileUpload.InputStream.Read(buffer, 0, buffer.Length);
fs.Write(buffer, 0, buffer.Length);
}
Get zip entry:
\r\nusing (ZipFile zipfile = ZipFile.Read(fullpath))\r\n
{
if (zipfile.ContainsEntry(fileName))
{
zipflag = true;
}
}
If Entry exist - append data, if not, create new:\r\n
if (!zipflag)\r\n
{
using (ZipFile zipfile = ZipFile.Read(fullpath))
{
using ( FileStream input = new FileStream (Path.Combine(pathToCreate, "chunkfile"), FileMode.Open, FileAccess.Read))
{
using (FileStream output = new FileStream(fullpath, FileMode.Create, FileAccess.Write))
{
using (ZipOutputStream zipout = new ZipOutputStream(output))
{
buffer = new byte[input.Length];
zipout.PutNextEntry(fileName);
int size;
do
{
size = input.Read(buffer, 0, buffer.Length);
zipout.Write(buffer, 0, size);
} while (size > 0);
}
}
}
}
}
else
{
buffer = FileArray(Path.Combine(pathToCreate, "chunkfile"));
AppendAllBytes(fullpath, buffer);
}
}
\r\n
public static void AppendAllBytes(string path, byte[] bytes)\r\n
{
using (var stream = new FileStream(path, FileMode.Append))
{
using (ZipOutputStream zipout = new ZipOutputStream(path))
{
zipout.Write(bytes, 0, bytes.Length);
}
}
}
private byte[] FileArray(string filename)\r\n
{
FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read);
// Create a byte array of file stream length
byte[] datachunk = new byte[fs.Length];
//Read block of bytes from stream into the byte array
fs.Read(datachunk, 0, System.Convert.ToInt32(fs.Length));
//Close the File Stream
fs.Close();
return datachunk; //return the byte data
}
variable <fullpath> this string, full path to a Zip file.
\r\nand im trying use:
\r\nusing (var stream = new FileStream(path, FileMode.Append))\r\n
{
ZipFile zipfile = ZipFile.Read(path);
using (StreamReader sr = new StreamReader(path))
{
var zn = zipfile.UpdateEntry(fileName, bytes);
sr.Close();
sr.Dispose();
}
}
NOT effect, file not update.
\r\nPlease HELP.
\r\n
\r\n
\r\n
\r\n
\r\n
I don't understand.
\r\nI don't know what you're asking or how to answer this question.
\r\n", "PostedDate": "2012-05-18T16:26:18.863-07:00", "UserRole": null, "MarkedAsAnswerDate": null }, { "Id": "893521", "ThreadId": "354033", "Html": "
ok. I want create zip with content many files.
\r\nEvery file upload over http to the web site and put to the folder, file upload with XHR2 (html5 with chunks)
\r\nand so..
\r\nmy question:
\r\nSo, upload file - image1.jpg
\r\nWhen upload first chunk (image1.jpg) creating temporary file (tempfile) with file.lenght = chunk.lenght, next
\r\ncreate zip file (allfiles.zip) with content this file (image1.jpg - 1 chunk), next
\r\nupload next chunk, open allfiles.zip, open image1.jpg and adds the following chunk, update allfiles.zip, and so on until the file (image1.jpg) is fully loaded,
\r\nthen the next file is loaded.....
\r\nHow to do this ?????
\r\n", "PostedDate": "2012-07-31T03:38:12.293-07:00", "UserRole": null, "MarkedAsAnswerDate": null } ]