public void Download()
{
DataTable fileInfo;
string directoryID = db.ExecuteScalar("SELECT id FROM directories WHERE fullpath = @path",
new Dictionary <string, object>()
{
{ "@path", vsrc.ParentPath.Path }
});
fileInfo =
db.GetDataTable("SELECT * from entities where isdir = @isdir and fname = @name and dir = @dir", new Dictionary <string, object>()
{
{ "@name", vsrc.EntityName },
{ "@isdir", 0 },
{ "@dir", directoryID }
});
// While we write the blocks to multiple -
// We only need data from one file system -
// I want to test the file system to make sure it is working before attempting access
int fsToUse = 0;
bool continueSearch = false;
for (int i = 0; i < fsdst.Count; i++)
{
try
{
using (Stream s = fsdst[fsToUse].CreateFile(FileSystemPath.Parse("/test")))
{
}
continueSearch = false;
}
catch (Exception)
{
Console.WriteLine("[Error]: file system - " + fsdst[fsToUse].ToString() + " missing - trying a backup");
continueSearch = true;
fsToUse++;
}
if (!continueSearch)
{
break;
}
}
DataTable blocks = db.GetDataTable(@"SELECT * FROM fileblocks
inner join blocks on blocks.id = fileblocks.block_id
WHERE file_id = @fileid
and blocks.location = @location
order by block_order asc"
, new Dictionary <string, object>()
{
{ "@fileid", fileInfo.Rows[0]["id"] },
{ "@location", fsdst[fsToUse].ToString() }
});
using (ProgressBar pb = new ProgressBar(disableProgress))
{
Int64 rowCount = 0;
foreach (DataRow r in blocks.Rows)
{
pb.Report((((double)rowCount) / blocks.Rows.Count));
rowCount += 1;
/*string remotename = db.ExecuteScalar("SELECT name FROM blocks where id = @blockID and location = @name",
* new Dictionary<string, object>()
* {
* {"@blockID", r["block_id"]},
* {"@name", fsdst[fsToUse].ToString()}
* });*/
string remotename = r["name"].ToString();
remotename = "/" + remotename;
remotename = remotename.Replace("//", "/");
using (var fstream = fsdst[fsToUse].OpenFile(FileSystemPath.Parse($"/{DATAFILE}"), FileAccess.Read))
{
DeDupeStorage storage = new DeDupeStorage(fstream, db);
byte[] buffer = storage.GetFile(remotename);
byte[] plainText = AESWrapper.DecryptToByte(buffer, key);
using (FileStream f = System.IO.File.Open(this.Path, FileMode.Append, FileAccess.Write))
{
f.Write(plainText);
}
}
/*using (var fstream = fsdst[fsToUse].OpenFile(FileSystemPath.Parse($"/{DATAFILE}"), FileAccess.Read))
* {
* DeDupeStorage storage = new DeDupeStorage(fstream, db);
* byte[] buffer = storage.GetFile(remotename);
* byte[] plainText = AESWrapper.DecryptToByte(buffer, key);
* using (var zippedStream = new MemoryStream(plainText))
* {
* using (var archive = new ZipArchive(zippedStream, ZipArchiveMode.Read))
* {
* var ent = archive.GetEntry("data.bin");
* using (var zipent = ent.Open())
* {
* byte[] bufferinner = zipent.ReadAllBytes();
* using (FileStream f = System.IO.File.Open(this.Path, FileMode.Append, FileAccess.Write))
* {
* f.Write(bufferinner);
* }
* //fstream.Write(bufferinner);
* }
* }
* }
* }*/
/*using (var fstream = fsdst[fsToUse].OpenFile(FileSystemPath.Parse($"/{DATAFILE}"), FileAccess.Read))
* {
* using (var zipfile = new ZipArchive(fstream, ZipArchiveMode.Read))
* {
* var ent = zipfile.GetEntry(remotename);
* using (var zipent = ent.Open())
* {
* byte[] buffer = zipent.ReadAllBytes();
* byte[] plainText = AESWrapper.DecryptToByte(buffer, key);
*
* if (plainText == null)
* {
* throw new Exception("[Error]: Could not decrypt file");
* }
*
* using (FileStream f = System.IO.File.Open(this.Path, FileMode.Append, FileAccess.Write))
* {
* f.Write(plainText);
* }
* }
* }
* }*/
/*using (Stream s = fsdst[fsToUse].OpenFile(FileSystemPath.Parse(remotename), FileAccess.Read))
* {
*
* using (FileStream f = System.IO.File.Open(this.Path, FileMode.Append, FileAccess.Write))
* {
* byte[] buffer = s.ReadAllBytes();
* byte[] plainText = AESWrapper.DecryptToByte(buffer, key);
* if (plainText == null)
* {
* throw new Exception("[Error]: Could not decrypt file");
* }
*
* f.Write(plainText);
* }
* }*/
}
string fileHash = fileInfo.Rows[0]["filehash"].ToString();
if (fileHash != "")
{
string newHash = "";
using (FileStream fs = System.IO.File.Open(this.Path, FileMode.Open, FileAccess.Read))
{
newHash = fs.GetSHA512();
}
if (fileHash != newHash)
{
Console.WriteLine("[Warning]: File hashs do not match - data corruption possible!");
}
}
}
}
