All scraping code removed
This commit is contained in:
Robert McRackan
parent
c61bc27a7b
commit
df90fc5361
106 changed files with 666 additions and 5319 deletions
311
FileLiberator/UNTESTED/DecryptBook.cs
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311
FileLiberator/UNTESTED/DecryptBook.cs
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Threading.Tasks;
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using AaxDecrypter;
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using DataLayer;
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using Dinah.Core;
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using Dinah.Core.ErrorHandling;
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using FileManager;
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namespace FileLiberator
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{
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/// <summary>
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/// Download DRM book and decrypt audiobook files.
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///
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/// Processes:
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/// Download: download aax file: the DRM encrypted audiobook
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/// Decrypt: remove DRM encryption from audiobook. Store final book
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/// Backup: perform all steps (downloaded, decrypt) still needed to get final book
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/// </summary>
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public class DecryptBook : IDecryptable
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{
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public event EventHandler<string> Begin;
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public event EventHandler<string> StatusUpdate;
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public event EventHandler<string> DecryptBegin;
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public event EventHandler<string> TitleDiscovered;
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public event EventHandler<string> AuthorsDiscovered;
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public event EventHandler<string> NarratorsDiscovered;
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public event EventHandler<byte[]> CoverImageFilepathDiscovered;
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public event EventHandler<int> UpdateProgress;
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public event EventHandler<string> DecryptCompleted;
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public event EventHandler<string> Completed;
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// ValidateAsync() doesn't need UI context
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public async Task<bool> ValidateAsync(LibraryBook libraryBook)
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=> await validateAsync_ConfigureAwaitFalse(libraryBook.Book.AudibleProductId).ConfigureAwait(false);
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private async Task<bool> validateAsync_ConfigureAwaitFalse(string productId)
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=> await AudibleFileStorage.AAX.ExistsAsync(productId)
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&& !await AudibleFileStorage.Audio.ExistsAsync(productId);
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// do NOT use ConfigureAwait(false) on ProcessUnregistered()
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// often does a lot with forms in the UI context
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public async Task<StatusHandler> ProcessAsync(LibraryBook libraryBook)
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{
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var displayMessage = $"[{libraryBook.Book.AudibleProductId}] {libraryBook.Book.Title}";
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Begin?.Invoke(this, displayMessage);
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try
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{
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var aaxFilename = await AudibleFileStorage.AAX.GetAsync(libraryBook.Book.AudibleProductId);
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if (aaxFilename == null)
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return new StatusHandler { "aaxFilename parameter is null" };
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if (!FileUtility.FileExists(aaxFilename))
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return new StatusHandler { $"Cannot find AAX file: {aaxFilename}" };
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if (await AudibleFileStorage.Audio.ExistsAsync(libraryBook.Book.AudibleProductId))
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return new StatusHandler { "Cannot find decrypt. Final audio file already exists" };
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string proposedOutputFile = Path.Combine(AudibleFileStorage.DecryptInProgress, $"[{libraryBook.Book.AudibleProductId}].m4b");
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string outputAudioFilename;
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//outputAudioFilename = await inAudibleDecrypt(proposedOutputFile, aaxFilename);
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outputAudioFilename = await aaxToM4bConverterDecrypt(proposedOutputFile, aaxFilename);
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// decrypt failed
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if (outputAudioFilename == null)
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return new StatusHandler { "Decrypt failed" };
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moveFilesToBooksDir(libraryBook.Book, outputAudioFilename);
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Dinah.Core.IO.FileExt.SafeDelete(aaxFilename);
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var statusHandler = new StatusHandler();
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var finalAudioExists = await AudibleFileStorage.Audio.ExistsAsync(libraryBook.Book.AudibleProductId);
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if (!finalAudioExists)
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statusHandler.AddError("Cannot find final audio file after decryption");
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return statusHandler;
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}
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finally
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{
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Completed?.Invoke(this, displayMessage);
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}
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}
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private async Task<string> aaxToM4bConverterDecrypt(string proposedOutputFile, string aaxFilename)
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{
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DecryptBegin?.Invoke(this, $"Begin decrypting {aaxFilename}");
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try
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{
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var converter = await AaxToM4bConverter.CreateAsync(aaxFilename, Configuration.Instance.DecryptKey);
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converter.AppName = "Libation";
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TitleDiscovered?.Invoke(this, converter.tags.title);
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AuthorsDiscovered?.Invoke(this, converter.tags.author);
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NarratorsDiscovered?.Invoke(this, converter.tags.narrator);
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CoverImageFilepathDiscovered?.Invoke(this, converter.coverBytes);
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converter.SetOutputFilename(proposedOutputFile);
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converter.DecryptProgressUpdate += (s, progress) => UpdateProgress?.Invoke(this, progress);
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// REAL WORK DONE HERE
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var success = await Task.Run(() => converter.Run());
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if (!success)
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{
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Console.WriteLine("decrypt failed");
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return null;
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}
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Configuration.Instance.DecryptKey = converter.decryptKey;
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return converter.outputFileName;
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}
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finally
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{
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DecryptCompleted?.Invoke(this, $"Completed decrypting {aaxFilename}");
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}
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}
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private static void moveFilesToBooksDir(Book product, string outputAudioFilename)
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{
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// files are: temp path\author\[asin].ext
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var m4bDir = new FileInfo(outputAudioFilename).Directory;
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var files = m4bDir
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.EnumerateFiles()
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.Where(f => f.Name.ContainsInsensitive(product.AudibleProductId))
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.ToList();
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// create final directory. move each file into it. MOVE AUDIO FILE LAST
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// new dir: safetitle_limit50char + " [" + productId + "]"
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// to prevent the paths from getting too long, we don't need after the 1st ":" for the folder
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var underscoreIndex = product.Title.IndexOf(':');
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var titleDir = (underscoreIndex < 4) ? product.Title : product.Title.Substring(0, underscoreIndex);
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var finalDir = FileUtility.GetValidFilename(AudibleFileStorage.BooksDirectory, titleDir, null, product.AudibleProductId);
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Directory.CreateDirectory(finalDir);
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// move audio files to the end of the collection so these files are moved last
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var musicFiles = files.Where(f => AudibleFileStorage.Audio.IsFileTypeMatch(f));
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files = files
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.Except(musicFiles)
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.Concat(musicFiles)
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.ToList();
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var musicFileExt = musicFiles
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.Select(f => f.Extension)
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.Distinct()
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.Single()
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.Trim('.');
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foreach (var f in files)
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{
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var dest = AudibleFileStorage.Audio.IsFileTypeMatch(f)
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// audio filename: safetitle_limit50char + " [" + productId + "]." + audio_ext
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? FileUtility.GetValidFilename(finalDir, product.Title, musicFileExt, product.AudibleProductId)
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// non-audio filename: safetitle_limit50char + " [" + productId + "][" + audio_ext +"]." + non_audio_ext
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: FileUtility.GetValidFilename(finalDir, product.Title, f.Extension, product.AudibleProductId, musicFileExt);
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File.Move(f.FullName, dest);
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}
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}
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#region legacy inAudible wire-up code
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//
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// instructions are in comments below for editing and interacting with inAudible. eg:
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// \_NET\Visual Studio 2017\inAudible197\decompiled - in progress\inAudible.csproj
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// first, add its project and put its exe path into inAudiblePath
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//
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#region placeholder code
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// this exists so the below legacy code will compile as-is. comment out placeholder code when actually connecting to inAudible
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class Form
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{
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internal void Show() => throw new NotImplementedException();
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internal void Kill() => throw new NotImplementedException();
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}
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class TextBox
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{
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internal string Text { set => throw new NotImplementedException(); }
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}
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class Button
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{
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internal void PerformClick() => throw new NotImplementedException();
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}
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class AudibleConvertor
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{
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internal class GLOBALS
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{
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internal static string ExecutablePath { set => throw new NotImplementedException(); }
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}
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internal class Form1 : Form
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{
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internal Form1(Action<string> action) => throw new NotImplementedException();
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internal void LoadAudibleFiles(string[] arr) => throw new NotImplementedException();
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internal TextBox txtOutputFile { get => throw new NotImplementedException(); }
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internal Button btnConvert { get => throw new NotImplementedException(); }
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}
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}
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#endregion
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private static string inAudiblePath { get; }
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= @"C:\"
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+ @"DEV_ROOT_EXAMPLE\"
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+ @"_NET\Visual Studio 2017\"
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+ @"inAudible197\decompiled - in progress\bin\Debug\inAudible.exe";
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private static async Task<string> inAudibleDecrypt(string proposedOutputFile, string aaxFilename)
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{
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#region // inAudible code to change:
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/*
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* Prevent "Path too long" error
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* =============================
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* BatchFiles.cs :: GenerateOutputFilepath()
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* Add this just before the bottom return statement
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*
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if (oneOff && !string.IsNullOrWhiteSpace(outputPath))
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return str + "\\" + Path.GetFileNameWithoutExtension(outputPath) + "." + fileType;
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*/
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#endregion
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#region init inAudible
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#region // suppress warnings
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// inAudible. project properties > Build > Warning level=2
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#endregion
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#region // instructions to create inAudible ExecutablePath
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/*
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* STEP 1
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* ======
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* do a PROJECT level find/replace within inAudible
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* find
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* Application.ExecutablePath
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* replace
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* AudibleConvertor.GLOBALS.ExecutablePath
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* STEP 2
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* ======
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* new inAudible root-level file
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* _GLOBALS.cs
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* contents:
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* namespace AudibleConvertor { public static class GLOBALS { public static string ExecutablePath { get; set; } = System.Windows.Forms.Application.ExecutablePath; } }
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*/
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#endregion
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AudibleConvertor.GLOBALS.ExecutablePath = inAudiblePath;
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// before using inAudible, set ini values
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setIniValues(new Dictionary<string, string> { ["selected_codec"] = "lossless", ["embed_cover"] = "True", ["copy_cover_art"] = "False", ["create_cue"] = "True", ["nfo"] = "True", ["strip_unabridged"] = "True", });
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#endregion
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// this provides the async magic to keep all of the form calling code in one method instead of event callback pattern
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// TODO: error handling is not obvious:
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// https://deaddesk.top/don't-fall-for-TaskCompletionSource-traps/
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var tcs = new TaskCompletionSource<string>();
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// to know when inAudible is complete. code to change:
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#region // code to preceed ctor
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/*
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Action<string> _conversionCompleteAction;
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public Form1(Action<string> conversionCompleteAction) : this() => _conversionCompleteAction = conversionCompleteAction;
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*/
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#endregion
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#region // code for the end of bgwAAX_Completed()
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/*
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if (this.myAdvancedOptions.beep && !this.myAdvancedOptions.cylon) this.SOXPlay(Form1.appPath + "\\beep.mp3", true);
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else if (myAdvancedOptions.cylon) SOXPlay(appPath + "\\inAudible-end.mp3", true);
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_conversionCompleteAction?.Invoke(outputFileName);
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}
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*/
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#endregion
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#region start inAudible
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var form = new AudibleConvertor.Form1(tcs.SetResult);
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form.Show();
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form.LoadAudibleFiles(new string[] { aaxFilename }); // inAudible: make public
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// change output info to include asin. put in temp
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form.txtOutputFile.Text = proposedOutputFile; // inAudible: make public
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// submit/process/decrypt
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form.btnConvert.PerformClick(); // inAudible: make public
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// ta-da -- magic! we stop here until inAudible complete
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var outputAudioFilename = await tcs.Task;
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#endregion
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#region when complete, close inAudible
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// use this instead of Dinah.Core.Windows.Forms.UIThread()
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form.Kill();
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#endregion
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return outputAudioFilename;
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}
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private static void setIniValues(Dictionary<string, string> settings)
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{
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// C:\Users\username\Documents\inAudible\config.ini
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var iniPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), "inAudible", "config.ini");
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var iniContents = File.ReadAllText(iniPath);
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foreach (var kvp in settings)
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iniContents = System.Text.RegularExpressions.Regex.Replace(
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iniContents,
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$@"\r\n{kvp.Key} = [^\r\n]+\r\n",
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$"\r\n{kvp.Key} = {kvp.Value}\r\n");
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File.WriteAllText(iniPath, iniContents);
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}
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#endregion
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}
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}
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