/// <summary>
/// Installs the specific version of an ASI to the specified target
/// </summary>
/// <param name="modVersion"></param>
/// <param name="target"></param>
/// <param name="forceSource">Null to let application choose the source, true to force online, false to force local cache. This parameter is used for testing</param>
/// <returns></returns>
public static bool InstallASIToTarget(ASIModVersion asi, GameTarget target, bool?forceSource = null)
{
if (asi.Game != target.Game)
{
throw new Exception($@"ASI {asi.Name} cannot be installed to game {target.Game}");
}
Log.Information($@"Processing ASI installation request: {asi.Name} v{asi.Version} -> {target.TargetPath}");
string destinationFilename = $@"{asi.InstalledPrefix}-v{asi.Version}.asi";
string cachedPath = Path.Combine(CachedASIsFolder, destinationFilename);
string destinationDirectory = MEDirectories.ASIPath(target);
if (!Directory.Exists(destinationDirectory))
{
Log.Information(@"Creating ASI directory in game: " + destinationDirectory);
Directory.CreateDirectory(destinationDirectory);
}
string finalPath = Path.Combine(destinationDirectory, destinationFilename);
// Delete existing ASIs from the same group to ensure we don't install the same mod
var existingSameGroupMods = target.GetInstalledASIs().OfType <KnownInstalledASIMod>().Where(x => x.AssociatedManifestItem.OwningMod == asi.OwningMod).ToList();
bool hasExistingVersionOfModInstalled = false;
if (existingSameGroupMods.Any())
{
foreach (var v in existingSameGroupMods)
{
if (v.Hash == asi.Hash && !forceSource.HasValue && !hasExistingVersionOfModInstalled) //If we are forcing a source, we should always install. Delete duplicates past the first one
{
Log.Information($@"{v.AssociatedManifestItem.Name} is already installed. We will not remove the existing correct installed ASI for this install request");
hasExistingVersionOfModInstalled = true;
continue; //Don't delete this one. We are already installed. There is no reason to install it again.
}
Log.Information($@"Deleting existing ASI from same group: {v.InstalledPath}");
v.Uninstall();
}
}
if (hasExistingVersionOfModInstalled && !forceSource.HasValue) //Let app decide
{
return(true); // This asi was "Installed" (because it was already installed).
}
// Install the ASI
if (forceSource == null || forceSource.Value == false)
{
Debug.WriteLine("Hit me");
}
string md5;
bool useLocal = forceSource.HasValue && !forceSource.Value; // false (forceLocal)
if (!useLocal && !forceSource.HasValue)
{
useLocal = File.Exists(cachedPath);
}
if (useLocal)
{
//Check hash first
md5 = Utilities.CalculateMD5(cachedPath);
if (md5 == asi.Hash)
{
Log.Information($@"Copying ASI from cached library to destination: {cachedPath} -> {finalPath}");
File.Copy(cachedPath, finalPath, true);
Log.Information($@"Installed ASI to {finalPath}");
Analytics.TrackEvent(@"Installed ASI", new Dictionary <string, string>()
{
{ @"Filename", Path.GetFileNameWithoutExtension(finalPath) }
});
return(true);
}
}
if (!forceSource.HasValue || forceSource.Value)
{
WebRequest request = WebRequest.Create(asi.DownloadLink);
Log.Information(@"Fetching remote ASI from server");
using WebResponse response = request.GetResponse();
var memoryStream = new MemoryStream();
response.GetResponseStream().CopyTo(memoryStream);
//MD5 check on file for security
md5 = Utilities.CalculateMD5(memoryStream);
if (md5 != asi.Hash)
{
//ERROR!
Log.Error(@"Downloaded ASI did not match the manifest! It has the wrong hash.");
return(false);
}
Log.Information(@"Fetched remote ASI from server. Installing ASI to " + finalPath);
memoryStream.WriteToFile(finalPath);
Log.Information(@"ASI successfully installed.");
Analytics.TrackEvent(@"Installed ASI", new Dictionary <string, string>()
{
{ @"Filename", Path.GetFileNameWithoutExtension(finalPath) }
});
//Cache ASI
if (!Directory.Exists(CachedASIsFolder))
{
Log.Information(@"Creating cached ASIs folder");
Directory.CreateDirectory(CachedASIsFolder);
}
Log.Information(@"Caching ASI to local ASI library: " + cachedPath);
memoryStream.WriteToFile(cachedPath);
return(true);
}
// We could not install the ASI
return(false);
}
public KnownInstalledASIMod(string filepath, string hash, MEGame game, ASIModVersion mappedVersion) : base(filepath, hash, game)
{
AssociatedManifestItem = mappedVersion;
}