// resolve resumable task file, continue in proper position
private void ResumeDownloadInPossible(HeadObjectResult result, string localFile)
{
this.resumableInfo = DownloadResumableInfo.LoadFromResumableFile(resumableTaskFile);
if (this.resumableInfo != null)
{
if ((result.crc64ecma == null || result.crc64ecma == resumableInfo.crc64ecma) &&
this.resumableInfo.eTag == result.eTag &&
this.resumableInfo.lastModified == result.lastModified &&
this.resumableInfo.contentLength == result.size)
{
// load parts downloaded
if (this.resumableInfo.slicesDownloaded != null)
{
// process downloaded parts
foreach (DownloadSliceStruct downloadedSlice in resumableInfo.slicesDownloaded)
{
// remove from current queue
DownloadSliceStruct calculatedSlice;
bool ret = this.sliceList.TryGetValue(downloadedSlice.partNumber, out calculatedSlice);
if (!ret)
{
// resumable file broken
break;
}
if (calculatedSlice.sliceStart == downloadedSlice.sliceStart &&
calculatedSlice.sliceEnd == downloadedSlice.sliceEnd)
{
if (this.sliceToRemove == null)
{
this.sliceToRemove = new HashSet <int>();
}
this.sliceToRemove.Add(downloadedSlice.partNumber);
}
// add to merging list
string tmpFileName = localDir + "." + localFileName + ".cosresumable." + downloadedSlice.partNumber;
this.tmpFilePaths.Add(tmpFileName);
}
}
else
{
this.resumableInfo.slicesDownloaded = new List <DownloadSliceStruct>();
}
}
}
else
{
this.resumableInfo = new DownloadResumableInfo();
this.resumableInfo.contentLength = result.size;
this.resumableInfo.crc64ecma = result.crc64ecma;
this.resumableInfo.eTag = result.eTag;
this.resumableInfo.lastModified = result.lastModified;
this.resumableInfo.slicesDownloaded = new List <DownloadSliceStruct>();
resumableInfo.Persist(resumableTaskFile);
}
}
public static DownloadResumableInfo LoadFromResumableFile(string taskFile)
{
try
{
using (FileStream stream = File.OpenRead(taskFile))
{
DownloadResumableInfo resumableInfo = XmlParse.Deserialize <DownloadResumableInfo>(stream);
return(resumableInfo);
}
}
catch (System.Exception)
{
return(null);
}
}