private bool Download(CacheContentFile file)
{
var fileName = Path.Combine(Location, file.Name);
var outputDirectory = Path.GetDirectoryName(fileName);
var temporaryFile = Path.Combine(outputDirectory, file.SHA1Hash + ".cpart");
var URL = _server + file.Cache + "/" + file.Name;
if (!Directory.Exists(outputDirectory))
{
Directory.CreateDirectory(outputDirectory);
}
int startAt = 0;
Log.Info(String.Format("Starting to download {0}, {1} bytes.", file.Name, file.Size));
if (File.Exists(temporaryFile))
{
//resume the download
if (_usecpart)
{
var fi = new FileInfo(temporaryFile);
startAt = (int)fi.Length;
SendStatus(StatusChangedEnum.FileDownloading, new object[] { file.Name, file.CompressedSize, startAt }, startAt);
Log.Info(String.Format("Partial file for {1} found, starting download at {0} bytes.", startAt, file.Name));
}
else
{
File.Delete(temporaryFile);
}
}
bool compressed = false;
#if !DEBUG
try
{
#endif
if (Utilities.URLExists(URL + ".lzma"))
{
compressed = true;
URL += ".lzma";
SendStatus(StatusChangedEnum.FileDownloadingLzma, file.Name, 0);
Log.Info(String.Format("Found a compressed file for {0}.", fileName));
}
Stream inStream, outStream;
if (startAt != file.Size && startAt != file.CompressedSize) //if they equal, ._.
{
// initialize request
var webRequest = (HttpWebRequest)WebRequest.Create(URL);
webRequest.AddRange(startAt);
var webResponse = (HttpWebResponse)webRequest.GetResponse();
inStream = webResponse.GetResponseStream();
outStream = File.Open(temporaryFile, FileMode.Append, FileAccess.Write, FileShare.Read);
var buffer = new byte[2048];
var lastBytes = 0;
while ((lastBytes = inStream.Read(buffer, 0, buffer.Length)) > 0)
{
outStream.Write(buffer, 0, lastBytes);
SendStatus(StatusChangedEnum.FileDownloading, new object[] { file.Name, file.CompressedSize, lastBytes }, lastBytes);
}
// clean up the streams
inStream.Close();
outStream.Close();
SendStatus(StatusChangedEnum.FileDownloadFinish, file.Name, 0);
}
if (compressed)
{
try
{
// decompress the temp file
var tempDecPath = fileName + ".deco";
var decoder = new LZMACoder();
SendStatus(StatusChangedEnum.FileDecompressStart, file.Name, 0);
Log.Info("decompressing " + file.Name);
inStream = File.OpenRead(temporaryFile);
outStream = File.Open(tempDecPath, FileMode.Create);
try
{
decoder.Decompress(inStream, outStream);
}
catch (ApplicationException ex)
{
inStream.Close();
outStream.Close();
throw ex;
}
inStream.Close();
outStream.Close();
File.Delete(temporaryFile);
File.Move(tempDecPath, temporaryFile);
SendStatus(StatusChangedEnum.FileDecompressFinish, file.Name, 0);
}
catch (ApplicationException e)
{
// lzma sdk threw an error.
File.Delete(temporaryFile);
Log.Error(String.Format("LZMA file failed to decompress. {0}", e.ToString()));
_lastException = e;
return(false);
}
}
// check the temp file's validity
SendStatus(StatusChangedEnum.FileVerifyStart, file.Name, 0);
var outHash = Utilities.GetFileSHA1(temporaryFile);
var inHash = file.SHA1Hash;
if (inHash != outHash)
{
_lastException = new Exception("Hash verification failed for " + fileName);
Log.Error("Hash verification failed for " + fileName);
File.Delete(temporaryFile);
SendStatus(StatusChangedEnum.FileVerifyFailed, file.Name, 0);
return(false);
}
SendStatus(StatusChangedEnum.FileVerifyFinish, file.Name, 0);
// and rename the temp file, and then delete it
File.Copy(temporaryFile, fileName, true);
File.Delete(temporaryFile);
return(true);
#if !DEBUG
}
catch (Exception e) {
Log.Error(String.Format("Error while downloading {0}.", e.ToString()));
_lastException = e;
}
return(false);
#endif
}
private bool Download(CacheContentFile file)
{
var fileName = Path.Combine(Location, file.Name.Replace("\\", "/"));
var outputDirectory = Path.GetDirectoryName(fileName);
var temporaryFile = Path.Combine(outputDirectory, file.SHA1Hash + ".cpart");
var URL = _server + file.Cache + "/" + file.Name;
if (!Directory.Exists(outputDirectory)) Directory.CreateDirectory(outputDirectory);
int startAt = 0;
Log.Info(String.Format("Starting to download {0}, {1} bytes.", file.Name, file.Size));
if(File.Exists(temporaryFile))
{
//resume the download
if(_usecpart)
{
var fi = new FileInfo(temporaryFile);
startAt = (int) fi.Length;
Log.Info(String.Format("Partial file for {1} found, starting download at {0} bytes.", startAt, file.Name));
}
else
{
File.Delete(temporaryFile);
}
}
bool compressed = false;
#if !DEBUG
try
{
#endif
if(Utilities.URLExists(URL + ".lzma"))
{
compressed = true;
URL += ".lzma";
SendStatus(StatusChangedEnum.FileDownloadingLzma, file.Name, 0);
Log.Info(String.Format("Found a compressed file for {0}.", fileName));
}
Stream inStream, outStream;
if (startAt != file.Size && startAt != file.CompressedSize) //if they equal, ._.
{
// initialize request
var webRequest = (HttpWebRequest) WebRequest.Create(URL);
webRequest.AddRange(startAt);
var webResponse = (HttpWebResponse) webRequest.GetResponse();
inStream = webResponse.GetResponseStream();
outStream = File.Open(temporaryFile, FileMode.Append, FileAccess.Write, FileShare.Read);
var buffer = new byte[2048];
var lastBytes = 0;
bool Mode = false;
while ((lastBytes = inStream.Read(buffer, 0, buffer.Length)) > 0)
{
outStream.Write(buffer, 0, lastBytes);
if (!Mode)
{
SendStatus(StatusChangedEnum.FileDownloading, new object[] { file.Name, file.CompressedSize, lastBytes }, lastBytes);
Mode = true;
}
}
// clean up the streams
Mode = false;
inStream.Close();
outStream.Close();
SendStatus(StatusChangedEnum.FileDownloadFinish, file.Name, 0);
}
if (compressed)
{
try
{
// decompress the temp file
var tempDecPath = fileName + ".deco";
var decoder = new LZMACoder();
SendStatus(StatusChangedEnum.FileDecompressStart, file.Name, 0);
Log.Info("decompressing " + file.Name);
inStream = File.OpenRead(temporaryFile);
outStream = File.Open(tempDecPath, FileMode.Create);
try
{
decoder.Decompress(inStream, outStream);
}
catch (ApplicationException ex)
{
inStream.Close();
outStream.Close();
throw ex;
}
inStream.Close();
outStream.Close();
File.Delete(temporaryFile);
File.Move(tempDecPath, temporaryFile);
SendStatus(StatusChangedEnum.FileDecompressFinish, file.Name, 0);
}
catch (ApplicationException e)
{
// lzma sdk threw an error.
File.Delete(temporaryFile);
Log.Error(String.Format("LZMA file failed to decompress. {0}", e.ToString()));
_lastException = e;
return false;
}
}
// check the temp file's validity
SendStatus(StatusChangedEnum.FileVerifyStart, file.Name, 0);
var outHash = Utilities.GetFileSHA1(temporaryFile);
var inHash = file.SHA1Hash;
if (inHash != outHash)
{
_lastException = new Exception("Hash verification failed for " + fileName);
Log.Error("Hash verification failed for " + fileName);
File.Delete(temporaryFile);
SendStatus(StatusChangedEnum.FileVerifyFailed, file.Name, 0);
return false;
}
SendStatus(StatusChangedEnum.FileVerifyFinish, file.Name, 0);
// and rename the temp file, and then delete it
File.Copy(temporaryFile, fileName, true);
File.Delete(temporaryFile);
return true;
#if !DEBUG
}
catch (Exception e) {
Log.Error(String.Format("Error while downloading {0}.", e.ToString()));
_lastException = e;
}
return false;
#endif
}
