/// <summary>
/// Set required files from the XML document
/// </summary>
private void SetRequiredFiles()
{
// Itterate through the RF XML and populate the RF collection
XmlNodeList fileNodes = _requiredFilesXml.SelectNodes("/files/file");
foreach (XmlNode file in fileNodes)
{
RequiredFile rf = new RequiredFile();
XmlAttributeCollection attributes = file.Attributes;
rf.FileType = attributes["type"].Value;
rf.Downloading = false;
rf.Complete = false;
rf.LastChecked = DateTime.Now;
rf.ChunkOffset = 0;
rf.ChunkSize = 0;
// Fill in some information that we already know
if (rf.FileType == "media")
{
rf.Id = int.Parse(attributes["id"].Value);
rf.Path = attributes["path"].Value;
rf.SaveAs = (attributes["saveAs"] == null || string.IsNullOrEmpty(attributes["saveAs"].Value)) ? rf.Path : attributes["saveAs"].Value;
rf.Http = (attributes["download"].Value == "http");
rf.ChunkSize = 512000;
}
else if (rf.FileType == "layout")
{
rf.Id = int.Parse(attributes["id"].Value);
rf.Path = attributes["path"].Value;
rf.Http = (attributes["download"].Value == "http");
if (rf.Http)
{
rf.SaveAs = attributes["saveAs"].Value;
}
else
{
rf.Path = rf.Path + ".xlf";
rf.SaveAs = rf.Path;
}
rf.ChunkSize = rf.Size;
}
else if (rf.FileType == "resource")
{
// Do something special here. Check to see if the resource file already exists otherwise add to RF
try
{
// Set the ID to be some random number
rf.Id = int.Parse(attributes["id"].Value);
rf.LayoutId = int.Parse(attributes["layoutid"].Value);
rf.RegionId = attributes["regionid"].Value;
rf.MediaId = attributes["mediaid"].Value;
rf.Path = rf.MediaId + ".htm";
rf.SaveAs = rf.Path;
// Set the size to something arbitary
rf.Size = 10000;
// Check to see if this has already been downloaded
if (File.Exists(ApplicationSettings.Default.LibraryPath + @"\" + rf.MediaId + ".htm"))
{
// Has it expired?
int updated = 0;
try
{
updated = (attributes["updated"] != null) ? int.Parse(attributes["updated"].Value) : 0;
}
catch (Exception e)
{
Debug.WriteLine("Can't read Updated attribute from Resource node. e = " + e.Message, "RequiredFiles");
}
DateTime updatedDt = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
updatedDt = updatedDt.AddSeconds(updated);
DateTime fileUpdatedDt = File.GetLastWriteTimeUtc(ApplicationSettings.Default.LibraryPath + @"\" + rf.MediaId + ".htm");
if (fileUpdatedDt > updatedDt)
{
Debug.WriteLine("Resource node does not need updating. Current: " + fileUpdatedDt + ", XMDS: " + updatedDt + ", updated: " + updated, "RequiredFiles");
rf.Complete = true;
}
else
{
Debug.WriteLine("Resource node needs updating. Current: " + fileUpdatedDt + ", XMDS: " + updatedDt, "RequiredFiles");
}
}
// Add to the Rf Node
RequiredFileList.Add(rf);
continue;
}
catch
{
// Forget about this resource
continue;
}
}
else
{
continue;
}
// This stuff only executes for Layout/Files items
rf.Md5 = attributes["md5"].Value;
rf.Size = double.Parse(attributes["size"].Value);
// Does this file already exist in the RF node? We might receive duplicates.
bool found = false;
foreach (RequiredFile existingRf in RequiredFileList)
{
if (existingRf.Id == rf.Id && existingRf.FileType == rf.FileType)
{
found = true;
break;
}
}
if (found)
{
Trace.WriteLine(new LogMessage("RequiredFiles - SetRequiredFiles", "Duplicate file detected, ignoring. FileId = " + rf.Id), LogType.Audit.ToString());
continue;
}
// Does this file exist?
if (File.Exists(ApplicationSettings.Default.LibraryPath + @"\" + rf.SaveAs))
{
// Compare MD5 of the file we currently have, to what we should have
if (rf.Md5 != CacheManager.Instance.GetMD5(rf.SaveAs))
{
Trace.WriteLine(new LogMessage("RequiredFiles - SetRequiredFiles", "MD5 different for existing file: " + rf.SaveAs), LogType.Info.ToString());
// They are different
CacheManager.Instance.Remove(rf.SaveAs);
// TODO: Resume the file download under certain conditions. Make sure its not bigger than it should be.
// Make sure it is fairly fresh
FileInfo info = new FileInfo(ApplicationSettings.Default.LibraryPath + @"\" + rf.SaveAs);
if (info.Length < rf.Size && info.LastWriteTime > DateTime.Now.AddDays(-1))
{
// Continue the file
rf.ChunkOffset = (int)info.Length;
}
else
{
// Delete the old file as it is wrong
try
{
File.Delete(ApplicationSettings.Default.LibraryPath + @"\" + rf.SaveAs);
}
catch (Exception ex)
{
Trace.WriteLine(new LogMessage("CompareAndCollect", "Unable to delete incorrect file because: " + ex.Message));
}
}
}
else
{
// The MD5 is equal - we already have an up to date version of this file.
rf.Complete = true;
CacheManager.Instance.Add(rf.SaveAs, rf.Md5);
}
}
else
{
// File does not exist, therefore remove it from the cache manager (on the off chance that it is in there for some reason)
CacheManager.Instance.Remove(rf.SaveAs);
}
RequiredFileList.Add(rf);
}
}
/// <summary>
/// Set required files from the XML document
/// </summary>
private void SetRequiredFiles()
{
// Itterate through the RF XML and populate the RF collection
XmlNodeList fileNodes = _requiredFilesXml.SelectNodes("/files/file");
foreach (XmlNode file in fileNodes)
{
RequiredFile rf = new RequiredFile();
XmlAttributeCollection attributes = file.Attributes;
rf.FileType = attributes["type"].Value;
rf.Downloading = false;
rf.Complete = false;
rf.LastChecked = DateTime.Now;
rf.ChunkOffset = 0;
rf.ChunkSize = 0;
// Fill in some information that we already know
if (rf.FileType == "media")
{
string[] filePart = attributes["path"].Value.Split('.');
rf.Id = int.Parse(filePart[0]);
rf.Path = attributes["path"].Value;
rf.ChunkSize = 512000;
}
else if (rf.FileType == "layout")
{
rf.Id = int.Parse(attributes["path"].Value);
rf.Path = attributes["path"].Value + ".xlf";
rf.ChunkSize = rf.Size;
}
else if (rf.FileType == "resource")
{
// Do something special here. Check to see if the resource file already exists otherwise add to RF
try
{
// Set the ID to be some random number
rf.Id = int.Parse(attributes["id"].Value);
rf.LayoutId = int.Parse(attributes["layoutid"].Value);
rf.RegionId = attributes["regionid"].Value;
rf.MediaId = attributes["mediaid"].Value;
rf.Path = rf.MediaId + ".htm";
// Set the size to something arbitary
rf.Size = 10000;
// Check to see if this has already been downloaded
if (File.Exists(Settings.Default.LibraryPath + @"\" + rf.MediaId + ".htm"))
{
// Has it expired?
int updated = 0;
try
{
updated = int.Parse(attributes["updated"].Value);
}
catch (Exception) {}
DateTime updatedDt = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
updatedDt = updatedDt.AddSeconds(updated);
if (File.GetLastWriteTimeUtc(Settings.Default.LibraryPath + @"\" + rf.MediaId + ".htm") > updatedDt)
rf.Complete = true;
}
// Add to the Rf Node
RequiredFileList.Add(rf);
continue;
}
catch
{
// Forget about this resource
continue;
}
}
else
continue;
// This stuff only executes for Layout/Files items
rf.Md5 = attributes["md5"].Value;
rf.Size = int.Parse(attributes["size"].Value);
Trace.WriteLine(new LogMessage("RequiredFiles - SetRequiredFiles", "Building required file node for " + rf.Id.ToString()), LogType.Audit.ToString());
// Does this file already exist in the RF node? We might receive duplicates.
bool found = false;
foreach (RequiredFile existingRf in RequiredFileList)
{
if (existingRf.Id == rf.Id && existingRf.FileType == rf.FileType)
{
found = true;
break;
}
}
if (found)
{
Trace.WriteLine(new LogMessage("RequiredFiles - SetRequiredFiles", "Duplicate file detected, ignoring. FileId = " + rf.Id), LogType.Audit.ToString());
continue;
}
// Does this file exist?
if (File.Exists(Settings.Default.LibraryPath + @"\" + rf.Path))
{
// Compare MD5 of the file we currently have, to what we should have
if (rf.Md5 != _cacheManager.GetMD5(rf.Path))
{
Trace.WriteLine(new LogMessage("RequiredFiles - SetRequiredFiles", "MD5 different for existing file: " + rf.Path), LogType.Info.ToString());
// They are different
_cacheManager.Remove(rf.Path);
// TODO: Resume the file download under certain conditions. Make sure its not bigger than it should be.
// Make sure it is fairly fresh
FileInfo info = new FileInfo(Settings.Default.LibraryPath + @"\" + rf.Path);
if (info.Length < rf.Size && info.LastWriteTime > DateTime.Now.AddDays(-1))
{
// Continue the file
rf.ChunkOffset = (int)info.Length;
}
else
{
// Delete the old file as it is wrong
try
{
File.Delete(Properties.Settings.Default.LibraryPath + @"\" + rf.Path);
}
catch (Exception ex)
{
Trace.WriteLine(new LogMessage("CompareAndCollect", "Unable to delete incorrect file because: " + ex.Message));
}
}
}
else
{
// The MD5 is equal - we already have an up to date version of this file.
rf.Complete = true;
_cacheManager.Add(rf.Path, rf.Md5);
}
}
else
{
// File does not exist, therefore remove it from the cache manager (on the off chance that it is in there for some reason)
_cacheManager.Remove(rf.Path);
}
RequiredFileList.Add(rf);
}
}
/// <summary>
/// Gets the files contained within FileList
/// </summary>
public void GetFile()
{
if (_currentFile > (_files.Count - 1))
{
System.Diagnostics.Debug.WriteLine(String.Format("Finished Receiving {0} files", _files.Count));
// Clean up
_files.Clear();
xmdsFile.Dispose();
// Write Required Files
_requiredFiles.WriteRequiredFiles();
// Finished getting this file list
CollectionComplete();
}
else
{
// Get the current file into the currentfilelist if the current one is finished
if (_currentFileList.complete)
{
_currentFileList = _files[_currentFile];
}
System.Diagnostics.Debug.WriteLine(String.Format("Getting the file : {0} chunk : {1}", _currentFileList.path, _currentFileList.chunkOffset.ToString()));
// Request the file
xmdsFile.GetFileAsync(Properties.Settings.Default.ServerKey, hardwareKey.Key, _currentFileList.path, _currentFileList.type, _currentFileList.chunkOffset, _currentFileList.chunkSize, Properties.Settings.Default.Version);
_currentFileList.downloading = true;
}
}
/// <summary>
/// Set required files from the XML document
/// </summary>
private void SetRequiredFiles()
{
// Itterate through the RF XML and populate the RF collection
XmlNodeList fileNodes = _requiredFilesXml.SelectNodes("/files/file");
foreach (XmlNode file in fileNodes)
{
RequiredFile rf = new RequiredFile();
XmlAttributeCollection attributes = file.Attributes;
rf.FileType = attributes["type"].Value;
rf.Complete = 0;
rf.Md5 = "";
rf.LastChecked = DateTime.Now;
if (rf.FileType == "media")
{
string[] filePart = attributes["path"].Value.Split('.');
rf.Id = int.Parse(filePart[0]);
rf.Path = attributes["path"].Value;
}
else if (rf.FileType == "layout")
{
rf.Id = int.Parse(attributes["path"].Value);
rf.Path = attributes["path"].Value + ".xlf";
}
else
{
continue;
}
_requiredFiles.Add(rf);
}
}
/// <summary>
/// Compares the xml file list with the files currently in the library
/// Downloads any missing files
/// For file types of Layout will fire a LayoutChanged event, giving the filename of the layout changed
/// </summary>
public void CompareAndCollect()
{
XmlNodeList fileNodes = _xml.SelectNodes("/files/file");
//Inspect each file we have here
foreach (XmlNode file in fileNodes)
{
XmlAttributeCollection attributes = file.Attributes;
RequiredFile fileList = new RequiredFile();
if (attributes["type"].Value == "layout")
{
// Layout
string path = attributes["path"].Value;
// Does this file exist?
if (File.Exists(Properties.Settings.Default.LibraryPath + @"\" + path + ".xlf"))
{
// Calculate a MD5 for the current file
String md5 = _cacheManager.GetMD5(path + ".xlf");
System.Diagnostics.Debug.WriteLine(String.Format("Comparing current MD5 [{0}] with given MD5 [{1}]", md5, attributes["md5"].Value));
// Now we have the md5, compare it to the md5 in the xml
if (attributes["md5"].Value != md5)
{
// They are different
_cacheManager.Remove(path + ".xlf");
//TODO: This might be bad! Delete the old layout as it is wrong
try
{
File.Delete(Properties.Settings.Default.LibraryPath + @"\" + path + ".xlf");
}
catch (Exception ex)
{
Trace.WriteLine(new LogMessage("CompareAndCollect", "Unable to delete incorrect file because: " + ex.Message));
}
// Get the file and save it
fileList.chunkOffset = 0;
fileList.chunkSize = 0;
fileList.complete = false;
fileList.downloading = false;
fileList.path = path;
fileList.type = "layout";
fileList.md5 = attributes["md5"].Value;
fileList.retrys = 0;
_files.Add(fileList);
}
else
{
// The MD5 of the current file and the MD5 in RequiredFiles are the same.
// Therefore make sure this MD5 is in the CacheManager
_cacheManager.Add(path + ".xlf", md5);
_requiredFiles.MarkComplete(int.Parse(path), md5);
}
}
else
{
// No - get the file and save it (no chunks)
fileList.chunkOffset = 0;
fileList.chunkSize = 0;
fileList.complete = false;
fileList.downloading = false;
fileList.path = path;
fileList.type = "layout";
fileList.md5 = attributes["md5"].Value;
fileList.retrys = 0;
_files.Add(fileList);
}
}
else if (attributes["type"].Value == "media")
{
// Media
string path = attributes["path"].Value;
// Does this media exist?
if (File.Exists(Properties.Settings.Default.LibraryPath + @"\" + path))
{
String md5 = _cacheManager.GetMD5(path);
System.Diagnostics.Debug.WriteLine(String.Format("Comparing current MD5 [{0}] with given MD5 [{1}]", md5, attributes["md5"].Value));
// MD5 the file to make sure it is the same.
if (md5 != attributes["md5"].Value)
{
// File changed
_cacheManager.Remove(path);
// Delete the old media as it is wrong
try
{
File.Delete(Properties.Settings.Default.LibraryPath + @"\" + path);
}
catch (Exception ex)
{
Trace.WriteLine(new LogMessage("CompareAndCollect", "Unable to delete incorrect file because: " + ex.Message));
}
// Add to queue
fileList.chunkOffset = 0;
fileList.chunkSize = 512000;
fileList.complete = false;
fileList.downloading = false;
fileList.path = path;
fileList.type = "media";
fileList.size = int.Parse(attributes["size"].Value);
fileList.md5 = attributes["md5"].Value;
fileList.retrys = 0;
_files.Add(fileList);
}
else
{
// The MD5 of the current file and the MD5 in RequiredFiles are the same.
// Therefore make sure this MD5 is in the CacheManager
_cacheManager.Add(path, md5);
string[] filePart = path.Split('.');
_requiredFiles.MarkComplete(int.Parse(filePart[0]), md5);
}
}
else
{
// No - Get it (async call - with chunks... through another class?)
fileList.chunkOffset = 0;
fileList.chunkSize = 512000;
fileList.complete = false;
fileList.downloading = false;
fileList.path = path;
fileList.type = "media";
fileList.size = int.Parse(attributes["size"].Value);
fileList.md5 = attributes["md5"].Value;
fileList.retrys = 0;
_files.Add(fileList);
}
}
else if (attributes["type"].Value == "blacklist")
{
// Expect <file type="blacklist"><file id="" /></file>
XmlNodeList items = file.ChildNodes;
BlackList blackList = new BlackList();
try { blackList.Truncate(); }
catch { }
if (items.Count > 0)
{
blackList.Add(items);
blackList.Dispose();
blackList = null;
}
items = null;
}
else
{
//Ignore node
}
}
Debug.WriteLine(String.Format("There are {0} files to get", _files.Count.ToString()));
// Output a list of the files we need to get
string debugMessage = "";
foreach (RequiredFile fileToGet in _files)
debugMessage += string.Format("File: {0}, Type: {1}, MD5: {2}. ", fileToGet.path, fileToGet.type, fileToGet.md5);
Debug.WriteLine(debugMessage);
// Report the files files back to XMDS
_requiredFiles.ReportInventory();
// Write Required Files
_requiredFiles.WriteRequiredFiles();
// Is there anything to get?
if (_files.Count == 0)
{
CollectionComplete();
return;
}
// Start with the first file
_currentFile = 0;
// Preload the first filelist
_currentFileList = _files[_currentFile];
// Get the first file
GetFile();
}