/// <summary>
/// Saves an aPK to file on the server.
/// </summary>
/// <param name="packageKey">Filename of the APK containing appname, version and whether it is a critical update or not.</param>
/// <param name="file">Byte array containing APK data</param>
/// <returns></returns>
public static String SavePackage(String packageKey, byte[] file)
{
try
{
waitHandle.WaitOne();
if (!Directory.Exists(PackageFolderLocation))
{
Directory.CreateDirectory(PackageFolderLocation);
}
var fileName = Path.Combine(PackageFolderLocation, packageKey);
File.WriteAllBytes(fileName, file);
return(fileName);
}
catch (Exception e)
{
LoggingControl.Log("Error while saving package " + packageKey + ".", e);
}
finally
{
waitHandle.Set();
}
return(String.Empty);
}
/// <summary>
/// Returns a list of hosted apks.
/// APK details are parsed out of the filename.
/// </summary>
public static List <PackageDetails> GetPackageList()
{
var packages = new List <PackageDetails>();
try
{
if (!Directory.Exists(PackageFolderLocation))
{
Directory.CreateDirectory(PackageFolderLocation);
}
else
{
var files = Directory.GetFiles(PackageFolderLocation).ToList();
foreach (var file in files)
{
packages.Add(new PackageDetails(file));
}
}
}
catch (Exception e)
{
LoggingControl.Log("Error while retrieving package list. " + PackageFolderLocation, e);
}
return(packages);
}
/// <summary>
/// Deletes an APK file from the server/service.
/// </summary>
/// <param name="packageDetails">Details of the APK to be deleted.</param>
public static bool DeletePackage(PackageDetails packageDetails)
{
try
{
waitHandle.WaitOne();
var packageKey = packageDetails.GetPackageKey();
var path = GetPackagePath(packageKey);
if (File.Exists(path))
{
File.Delete(path);
}
else
{
LoggingControl.Log("Error while deleting package " + packageDetails.Name + " " + packageDetails.Version + ". Could not find file.");
return(false);
}
return(!File.Exists(path));
}
catch (Exception e)
{
LoggingControl.Log("Error while deleting package " + packageDetails.Name + " " + packageDetails.Version + ".", e);
return(false);
}
finally
{
waitHandle.Set();
}
}
/// <summary>
/// Removes this download entry from the download dictionary if only one device is busy downloading or simply decremtents the count otherwise..
/// </summary>
/// <param name="packageDetails">Details of the package download that is being completed.</param>
public static bool EndOrDecrementDownload(PackageDetails packageDetails, int fragmentSize)
{
try
{
var packageKey = packageDetails.GetPackageKey();
var downloadKey = GetDownloadKey(packageDetails, fragmentSize);
Download download;
if (activeDownloads.TryGetValue(downloadKey, out download))
{
download.LastTimeStamp = DateTime.Now;
download.ActiveDownloads--;
if (download.ActiveDownloads <= 0)
{
return(activeDownloads.TryRemove(packageKey, out download));
}
else
{
return(true);
}
}
else
{
LoggingControl.Log("Error while ending download for " + packageDetails.Name + " " + packageDetails.Version + ". Entry no longer exists in download list.");
return(true);
}
}
catch (Exception e)
{
LoggingControl.Log("Error while ending download for " + packageDetails.Name + " " + packageDetails.Version + ".", e);
return(false);
}
}
/// <summary>
/// Initiates an download of a specified APK.
/// Inserts an entry into the upload dictionary where download fragments are kept in memory while they are being sent to devices.
/// Returns a count of fragments to be expected for this APK when using this fragment size.
/// </summary>
/// <param name="packageDetails">Details of the package being downloaded.</param>
/// <param name="fragmentSize">The size of the fragments being downloaded as requested by the device.</param>
public static int StartOrIncrementDownload(PackageDetails packageDetails, int fragmentSize)
{
try
{
CleanUpDownloads();
Download packageDownload = null;
var downloadKey = GetDownloadKey(packageDetails, fragmentSize);
var packageKey = packageDetails.GetPackageKey();
var package = new byte[0];
if (FileControl.GetPackageList().Any(x => x.GetPackageKey().Equals(packageKey, StringComparison.OrdinalIgnoreCase)))
{
var path = FileControl.GetPackagePath(packageKey);
if (File.Exists(path))
{
package = FileControl.GetPackage(path);
if (activeDownloads.TryGetValue(downloadKey, out packageDownload))
{
packageDownload.ActiveDownloads++;
packageDownload.LastTimeStamp = DateTime.Now;
return(packageDownload.Fragments.Count);
}
else
{
packageDownload = new Download(packageDetails.Name, packageDetails.Version, package, fragmentSize);
if (activeDownloads.TryAdd(downloadKey, packageDownload))
{
return(packageDownload.Fragments.Count);
}
else
{
LoggingControl.Log("Error while starting download for " + packageDetails.Name + " " + packageDetails.Version + ". Could not add instance to download list.");
}
}
}
else
{
LoggingControl.Log("Error while starting download for " + packageDetails.Name + " " + packageDetails.Version + ". Could not find file.");
}
}
else
{
LoggingControl.Log("Error while cancelling downloads for " + packageDetails.Name + " " + packageDetails.Version + ". Could not find package in list.");
}
return(-1);
}
catch (Exception e)
{
LoggingControl.Log("Error while cancelling downloads for " + packageDetails.Name + " " + packageDetails.Version + ".", e);
return(-1);
}
}
/// <summary>
/// Cancels a specific upload and removes its entry from the upload dictionary.
/// </summary>
/// <param name="packageDetails">Details of the package upload that is being cancelled</param>
/// <returns></returns>
public static bool CancelNewUpload(PackageDetails packageDetails)
{
try
{
Upload packageUpload = null;
return(activeUploads.TryRemove(GetUploadKey(packageDetails), out packageUpload));
}
catch (Exception e)
{
LoggingControl.Log("Error while cancelling upload for " + packageDetails.Name + " " + packageDetails.Version + ".", e);
return(false);
}
}
/// <summary>
/// Checks the service for any existing uploads of an APK.
/// This helps to prevent the same APK from being uploaded at the same time.
/// </summary>
/// <param name="packageDetails">Details of the package being checked for active uploads.</param>
public static bool CheckForActiveUpload(PackageDetails packageDetails)
{
try
{
CleanUpUploads();
var uploadKey = GetUploadKey(packageDetails);
return(activeUploads.Any(x => x.Key.Equals(uploadKey, StringComparison.OrdinalIgnoreCase)));
}
catch (Exception e)
{
LoggingControl.Log("Error while checking for uploads for " + packageDetails.Name + " " + packageDetails.Version + ".", e);
return(false);
}
}
/// <summary>
/// Checks for active downloads of a specific APK. This allows the users altering or removing hosted APKs to be warned if an APK is currently in use.
/// </summary>
/// <param name="packageDetails">Details of the package being checked for active downloads.</param>
public static int GetActiveDownloadCountForPackage(PackageDetails packageDetails)
{
try
{
CleanUpDownloads();
var downloads = activeDownloads.Where(x => x.Value.Name == packageDetails.Name && x.Value.Version == packageDetails.Version).Sum(x => x.Value.ActiveDownloads);
return(downloads);
}
catch (Exception e)
{
LoggingControl.Log("Error while checking for downloads for " + packageDetails.Name + " " + packageDetails.Version + ".", e);
return(-1);
}
}
/// <summary>
/// Removes any entries in the download dictionary that have not been interacted with in the past 3 minutes.
/// This ensures old entries that are incomplete for whatever reason will not remain on the server indefinately.
/// </summary>
public static void CleanUpDownloads()
{
try
{
foreach (var download in activeDownloads)
{
if ((DateTime.Now - download.Value.LastTimeStamp).TotalMinutes > 3)
{
Download forgottenPackage;
activeDownloads.TryRemove(download.Key, out forgottenPackage);
}
}
}
catch (Exception e)
{
LoggingControl.Log("Error while cleaning up downloads.", e);
}
}
/// <summary>
/// Updates the filename of an APK to indicate whether it is a critical update or not.
/// Apps updated through mobu canspecify whether they always get the latest version of an APK or only newer APKs marked as critical.
/// This makes it possible allow testers to manually get new versions without automatically pushing it to all users.
/// </summary>
/// <param name="packageDetails">Details of the package that should be toggled.</param>
/// <returns></returns>
public static bool ToggleCriticalState(PackageDetails packageDetails)
{
try
{
waitHandle.WaitOne();
var packageKey = packageDetails.GetPackageKey();
var oldPath = GetPackagePath(packageKey);
var newPath = oldPath.Remove(oldPath.Length - 1);
if (File.Exists(oldPath))
{
if (oldPath[oldPath.Length - 1] == '1')
{
newPath += '0';
}
else
{
newPath += '1';
}
File.Move(oldPath, newPath);
}
else
{
LoggingControl.Log("Error while toggling critical state for " + packageDetails.Name + " " + packageDetails.Version + ". Could not find file.");;
return(false);
}
return(File.Exists(newPath) && !File.Exists(oldPath));
}
catch (Exception e)
{
LoggingControl.Log("Error while toggling critical state for " + packageDetails.Name + " " + packageDetails.Version + ".", e);
return(false);
}
finally
{
waitHandle.Set();
}
}
/// <summary>
/// Returns a specific APK file.
/// </summary>
/// <param name="path">FIle path of the requested APK.</param>
/// <returns></returns>
public static byte[] GetPackage(String path)
{
try
{
waitHandle.WaitOne();
if (File.Exists(path))
{
return(File.ReadAllBytes(path));
}
}
catch (Exception e)
{
LoggingControl.Log("Error while retrieving package", e);
}
finally
{
waitHandle.Set();
}
return(null);
}
/// <summary>
/// Recombines uploaded fragments into an APK file which is saved on the server before removing this entry from the upload dictionary.
/// </summary>
/// <param name="packageDetails">Details of the package upload that is being completed.</param>
public static bool FinishUpload(PackageDetails packageDetails)
{
try
{
Upload upload = null;
var uploadKey = GetUploadKey(packageDetails);
if (activeUploads.TryGetValue(uploadKey, out upload))
{
var package = upload.CombineFragmentsIntoPackage();
if (package.Length != upload.PackageSize)
{
LoggingControl.Log("Error while finishing upload for " + packageDetails.Name + " " + packageDetails.Version + ". Unexpected file size.");
return(false);
}
var path = FileControl.SavePackage(packageDetails.GetPackageKey(), package);
if (String.IsNullOrEmpty(path))
{
LoggingControl.Log("Error while finishing upload for " + packageDetails.Name + " " + packageDetails.Version + ". Could not find key save file.");
return(false);
}
return(activeUploads.TryRemove(uploadKey, out upload));
}
else
{
LoggingControl.Log("Error while finishing upload for " + packageDetails.Name + " " + packageDetails.Version + ". Could not find key " + uploadKey + ".");
return(false);
}
}
catch (Exception e)
{
LoggingControl.Log("Error while finishing upload for " + packageDetails.Name + " " + packageDetails.Version + ".", e);
return(false);
}
}
/// <summary>
/// Adds a upload fragment to the list of fragments being uploaded for this APK.
/// </summary>
/// <param name="fragment">Contains apk details as well as the data content of the fragment itself.</param>
public static bool UploadNextFragment(Fragment fragment)
{
try
{
var uploadKey = GetUploadKey(fragment.PackageDetails);
if (activeUploads.ContainsKey(uploadKey))
{
activeUploads[uploadKey].LastTimeStamp = DateTime.Now;
activeUploads[uploadKey].Fragments.Add(fragment.Data);
return(true);
}
else
{
return(false);;
}
}
catch (Exception e)
{
LoggingControl.Log("Error while uploading next fragment for " + fragment.PackageDetails.Name + " " + fragment.PackageDetails.Version + ".", e);
return(false);
}
}
/// <summary>
/// Cancels all downloads of a specific APK and removes its entry from the download dictionary.
/// This cancels all downloads of this version of an app, regardless of the requested fragment size.
/// </summary>
/// <param name="packageDetails">Details of the package being cancelled.</param>
public static bool CancelActiveDownloadsForApp(PackageDetails packageDetails)
{
try
{
var downloads = activeDownloads.Where(x => x.Value.Name == packageDetails.Name && x.Value.Version == packageDetails.Version);
foreach (var x in downloads)
{
if (!activeDownloads.TryRemove(x.Key, out Download cancelledApp))
{
LoggingControl.Log("Error while cancelling download for " + x + ".");
return(false);
}
}
return(true);
}
catch (Exception e)
{
LoggingControl.Log("Error while cancelling downloads for " + packageDetails.Name + " " + packageDetails.Version + ".", e);
return(false);
}
}
/// <summary>
/// Initiates an opload of a specified APK.
/// Inserts an entyry into the upload dictionary where uploaded fragments are kept in memory until they are recompiled into the complete APK and saved.
/// </summary>
/// <param name="packageDetails">Details of the package being uploaded.</param>
/// <param name="packageSize">The full size of the APK being uploaded in bytes.</param>
/// <param name="fragmentSize">The size of the fragments being uploaded.</param>
/// <returns></returns>
public static bool StartUpload(PackageDetails packageDetails, int packageSize, int fragmentSize)
{
try
{
CleanUpUploads();
var packageUpload = new Upload(GetUploadKey(packageDetails), packageSize, fragmentSize);
if (activeUploads.ContainsKey(packageUpload.Key))
{
LoggingControl.Log("Error while starting upload for " + packageDetails.Name + " " + packageDetails.Version + ". FIle is already being uploaded.");
return(false);
}
else
{
return(activeUploads.TryAdd(packageUpload.Key, packageUpload));
}
}
catch (Exception e)
{
LoggingControl.Log("Error while starting upload for " + packageDetails.Name + " " + packageDetails.Version + ".", e);
return(false);
}
}
/// <summary>
/// Retrieves a specific fragment to be sent to the device.
/// </summary>
/// <param name="packageDetails">Details of the package being downloaded.</param>
/// <param name="index">Index of the specific fragment </param>
/// <param name="fragmentSize">Fragment size requested by the device</param>
public static Fragment GetFragment(PackageDetails packageDetails, int index, int fragmentSize)
{
try
{
Download package = null;
var downloadKey = GetDownloadKey(packageDetails, fragmentSize);
if (activeDownloads.TryGetValue(downloadKey, out package))
{
package.LastTimeStamp = DateTime.Now;
return(new Fragment(packageDetails, index, package.Fragments[index]));
}
else
{
LoggingControl.Log("Error while getting next download fragment for " + packageDetails.Name + " " + packageDetails.Version + ". Could not find entry in download list.");
return(null);
}
}
catch (Exception e)
{
LoggingControl.Log("Error while getting next download fragment for " + packageDetails.Name + " " + packageDetails.Version + ".", e);
return(null);
}
}
