auto-creamapi-2/auto-creamapi/Services/DownloadCreamApiService.cs

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6.1 KiB
C#
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using auto_creamapi.Messenger;
using auto_creamapi.Utils;
using HttpProgress;
using MvvmCross.Plugin.Messenger;
using SevenZip;
namespace auto_creamapi.Services
{
public interface IDownloadCreamApiService
{
public Task<string> Download(string username, string password);
public Task Extract(string filename);
}
public class DownloadCreamApiService : IDownloadCreamApiService
{
private const string ArchivePassword = "cs.rin.ru";
private readonly IMvxMessenger _messenger;
public DownloadCreamApiService(IMvxMessenger messenger)
{
_messenger = messenger;
}
public async Task<string> Download(string username, string password)
{
MyLogger.Log.Debug("Download");
var container = new CookieContainer();
var handler = new HttpClientHandler {CookieContainer = container};
var client = new HttpClient(handler);
var formContent = new FormUrlEncodedContent(new[]
{
new KeyValuePair<string, string>("username", username),
new KeyValuePair<string, string>("password", password),
new KeyValuePair<string, string>("redirect", "./ucp.php?mode=login"),
new KeyValuePair<string, string>("login", "login")
});
MyLogger.Log.Debug("Download: post login");
var response1 = await client.PostAsync("https://cs.rin.ru/forum/ucp.php?mode=login", formContent)
.ConfigureAwait(false);
MyLogger.Log.Debug($"Login Status Code: {response1.EnsureSuccessStatusCode().StatusCode.ToString()}");
var cookie = container.GetCookies(new Uri("https://cs.rin.ru/forum/ucp.php?mode=login"))
.FirstOrDefault(c => c.Name.Contains("_sid"));
MyLogger.Log.Debug($"Login Cookie: {cookie}");
var response2 = await client.GetAsync("https://cs.rin.ru/forum/viewtopic.php?t=70576")
.ConfigureAwait(false);
MyLogger.Log.Debug(
$"Download Page Status Code: {response2.EnsureSuccessStatusCode().StatusCode.ToString()}");
var content = response2.Content.ReadAsStringAsync();
var contentResult = await content.ConfigureAwait(false);
var expression =
new Regex(".*<a href=\"\\.(?<url>\\/download\\/file\\.php\\?id=.*)\">(?<filename>.*)<\\/a>.*");
using var reader = new StringReader(contentResult);
string line;
var archiveFileList = new Dictionary<string, string>();
while ((line = await reader.ReadLineAsync().ConfigureAwait(false)) != null)
{
var match = expression.Match(line);
// ReSharper disable once InvertIf
if (match.Success)
{
archiveFileList.Add(match.Groups["filename"].Value,
$"https://cs.rin.ru/forum{match.Groups["url"].Value}");
MyLogger.Log.Debug(archiveFileList.LastOrDefault().Key);
}
}
MyLogger.Log.Debug("Choosing first element from list...");
var (filename, url) = archiveFileList.FirstOrDefault();
if (File.Exists(filename))
{
MyLogger.Log.Information($"{filename} already exists, skipping download...");
return filename;
}
MyLogger.Log.Information("Start download...");
var progress = new Progress<ICopyProgress>(
x => _messenger.Publish(new ProgressMessage(this, "Downloading...", filename, x)));
await using var fileStream = File.OpenWrite(filename);
var task = client.GetAsync(url, fileStream, progress);
await task.ConfigureAwait(false);
if (task.IsCompletedSuccessfully)
_messenger.Publish(new ProgressMessage(this, "Downloading...", filename, 1.0));
MyLogger.Log.Information("Download done.");
return filename;
}
public async Task Extract(string filename)
{
MyLogger.Log.Debug("Extract");
var cwd = Directory.GetCurrentDirectory();
const string nonlogBuild = "nonlog_build";
const string steamApi64Dll = "steam_api64.dll";
const string steamApiDll = "steam_api.dll";
MyLogger.Log.Information($@"Start extraction of ""{filename}""...");
var nonlogBuildPath = Path.Combine(cwd, nonlogBuild);
if (Directory.Exists(nonlogBuildPath))
Directory.Delete(nonlogBuildPath, true);
_messenger.Publish(new ProgressMessage(this, "Extracting...", filename, 1.0));
SevenZipBase.SetLibraryPath(Path.Combine(cwd, "resources/7z.dll"));
using (var extractor =
new SevenZipExtractor(filename, ArchivePassword, InArchiveFormat.Rar)
{PreserveDirectoryStructure = false})
{
await extractor.ExtractFilesAsync(
cwd,
$@"{nonlogBuild}\{steamApi64Dll}",
$@"{nonlogBuild}\{steamApiDll}"
).ConfigureAwait(false);
}
if (File.Exists(Path.Combine(nonlogBuildPath, steamApi64Dll)))
File.Move(
Path.Combine(cwd, nonlogBuild, steamApi64Dll),
Path.Combine(cwd, steamApi64Dll),
true
);
if (File.Exists(Path.Combine(nonlogBuildPath, steamApiDll)))
File.Move(
Path.Combine(nonlogBuildPath, steamApiDll),
Path.Combine(cwd, steamApiDll),
true
);
if (Directory.Exists(nonlogBuildPath))
Directory.Delete(nonlogBuildPath, true);
MyLogger.Log.Information("Extraction done!");
}
}
}