private async Task DownloadModPackage(string modDirectory, ModSystemInfo modSystemInfo, ModIndexEntry modIndexEntry)
{
var request = WebRequest.Create(new Url(modSystemInfo.BasePath).AppendPathSegment(modIndexEntry.Name).ToString());
var response = await request.GetResponseAsync();
using var responseStream = response.GetResponseStream() ?? throw new ModSystemException("Could not get mod package stream for: " + modIndexEntry.Name);
using var fileStream = new FileStream(Path.Combine(modDirectory, modIndexEntry.Name), FileMode.Create, FileAccess.Write);
var buffer = new byte[1048576];
int bytesRead;
while ((bytesRead = await responseStream.ReadAsync(buffer, 0, buffer.Length)) > 0)
{
fileStream.Write(buffer, 0, bytesRead);
}
}
/// <summary>
/// Downloads and installs mod packages associated with the given server.
/// </summary>
/// <param name="server">The server to download mods for.</param>
/// <param name="directory">The directory to install mods into.</param>
/// <returns></returns>
public async Task DownloadServerModsAsync(Server server, string directory)
{
HttpResponseMessage modSystemInfo = await new Flurl.Url(server.ServerAddress)
.AppendPathSegment("Modding/GetModInfo")
.AllowAnyHttpStatus()
.GetAsync();
if (modSystemInfo.StatusCode == HttpStatusCode.OK)
{
ModSystemInfo msi =
JsonConvert.DeserializeObject <ModSystemInfo>(await modSystemInfo.Content.ReadAsStringAsync());
if (string.IsNullOrWhiteSpace(msi.BasePath))
{
throw new ModSystemException("No base path for mods was provided by the server.");
}
if (string.IsNullOrWhiteSpace(msi.ServerId))
{
throw new ModSystemException("No group ID for mods was provided by the server.");
}
ModIndex index = await new Flurl.Url(msi.BasePath)
.AppendPathSegment("index.json")
.GetJsonAsync <ModIndex>();
string modsDirectory = Path.Combine(directory, "MODS", HashUtil.HashMd5(msi.ServerId).ToLower());
SecurityIdentifier identity = new SecurityIdentifier(WellKnownSidType.WorldSid, null);
DirectorySecurity accessControl = new DirectorySecurity();
accessControl.AddAccessRule(new FileSystemAccessRule(identity, FileSystemRights.FullControl,
InheritanceFlags.ObjectInherit | InheritanceFlags.ContainerInherit, PropagationFlags.NoPropagateInherit,
AccessControlType.Allow));
Directory.CreateDirectory(modsDirectory, accessControl);
foreach (var entry in index.Entries)
{
await DownloadModPackage(modsDirectory, msi, entry);
}
}
}
