Esempio n. 1
0
        public static Dictionary <string, string> GetKindleList()
        {
            /* If Kindle is not connected, it will use the list of IDs stored from the last time it was.
             * Returns a dictionary in the format:
             *      Dictionary
             *      {
             *          MD5 hash: Filepath
             *      }
             */
            Dictionary <string, string> fileHashes = new Dictionary <string, string>();
            var progressWindow = new ProgressWindow();

            progressWindow.Show();
            progressWindow.StopProgress();

            Task.Factory.StartNew(() =>
            {
                foreach (DriveInfo drive in DriveInfo.GetDrives())
                {
                    string driveName = drive.IsReady ? drive.VolumeLabel : null; // Makes sure we only try to query mounted drives
                    if (driveName != null && driveName.Contains("Kindle"))       // TODO more robust Kindle detection
                    {
                        // Kindle is connected, get current library


                        progressWindow.ChangeText("Locating Kindle contents...");


                        string[] kindleFiles = FileTools.Walker(new List <string> {
                            drive.Name
                        });
                        progressWindow.SetProgressBarMax(kindleFiles.Length);
                        progressWindow.StartProgress();
                        progressWindow.ChangeText("Processing Kindle files...");

                        foreach (string file in kindleFiles)
                        {
                            string ext = Path.GetExtension(file);
                            if (ext.StartsWith("."))
                            {
                                ext = ext.Substring(1);
                            }
                            if (Constants.AllowedExt.Contains(ext))
                            {
                                string workHash      = WorkIdent.Hash(file);
                                fileHashes[workHash] = file;
                            }

                            progressWindow.UpdateProgressBar();
                        }

                        MiddleDude.StoreKindle(fileHashes);
                    }
                }
            });


            progressWindow.Close();
            Console.WriteLine("Kindle fetch complete!");
            try
            {
                fileHashes = MiddleDude.LoadKindle();
                return(fileHashes);
            }
            catch (InvalidOperationException)
            {
                return(fileHashes);
            }
        }
        private string DownloadEbook(String downloadUrl)
        {
            if (!CreateFolder(userSettings.DownloadLocation))
            {
                return(null);
            }

            int    attempts       = 0;
            bool   fileDownloaded = false;
            string filename;
            Uri    uri     = new Uri(downloadUrl);
            string work_id = uri.Segments[2];

            work_id = work_id.Remove(work_id.Length - 1);
            string downloadUrlClean = uri.GetLeftPart(UriPartial.Path);

            filename = FileTools.ToAllowedFileName(uri.Segments.Last());
            filename = $"{work_id}-{filename}";
            filename = $"{userSettings.DownloadLocation}/{filename}";

            if (File.Exists(filename))
            {
                // TODO popup window to allow for replacing existing file? checkbox to enable/disable feature?
                Log("This file already exists, skipping...");
                return(null);
            }

            do
            {
                var doneEvent = new AutoResetEvent(false);  // TODO dispose
                using (var w = new WebClient())
                {
                    w.DownloadFileCompleted += (s, e) =>
                    {
                        AttemptCooldown(attempts);
                        attempts++;

                        if (!e.Cancelled && e.Error == null)
                        {
                            fileDownloaded = true;
                        }
                        else if (!e.Cancelled && e.Error != null)
                        {
                            if (attempts < userSettings.DownloadMaxAttempts)
                            {
                                Log($"Failed to download {downloadUrl}, retrying...");
                            }
                            else
                            {
                                Log($"Failed to download {downloadUrl}, max retries reached.");
                            }
                        }
                        doneEvent.Set();
                    };


                    lock (this.pendingDownloads)
                    {
                        if (this.userCancel)
                        {
                            return(null);
                        }
                        this.pendingDownloads.Add(w);
                        w.DownloadFileAsync(new Uri(downloadUrl), filename);
                    }
                    doneEvent.WaitOne();
                    lock (this.pendingDownloads)
                    {
                        downloadedFiles.Add(filename);
                        this.pendingDownloads.Remove(w);
                    }
                }
            }while (!fileDownloaded && attempts < userSettings.DownloadMaxAttempts);

            return(filename);
        }