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Download and decrypt AAXC files. Upgraded ffmpeg to 4.4-19.

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This commit is contained in:
Michael Bucari-Tovo 2021-06-19 00:59:39 -06:00
parent 54c21e969e
commit 310b90962c
21 changed files with 100 additions and 69 deletions
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51
FileLiberator/DownloadBook.cs
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@ -6,7 +6,8 @@ using DataLayer;
using Dinah.Core;
using Dinah.Core.ErrorHandling;
using FileManager;
using InternalUtilities;
using System.Net.Http;
using Dinah.Core.Net.Http;
namespace FileLiberator
{
@ -29,7 +30,7 @@ namespace FileLiberator
public override async Task<StatusHandler> ProcessItemAsync(LibraryBook libraryBook)
{
var tempAaxFilename = getDownloadPath(libraryBook);
var actualFilePath = await downloadBookAsync(libraryBook, tempAaxFilename);
var actualFilePath = await downloadAacxBookAsync(libraryBook, tempAaxFilename);
moveBook(libraryBook, actualFilePath);
return verifyDownload(libraryBook);
}
@ -40,7 +41,53 @@ namespace FileLiberator
libraryBook.Book.Title,
"aax",
libraryBook.Book.AudibleProductId);
private async Task<string> downloadAacxBookAsync(LibraryBook libraryBook, string tempAaxFilename)
{
validate(libraryBook);
var api = await GetApiAsync(libraryBook);
var dlLic = await api.GetDownloadLicenseAsync(libraryBook.Book.AudibleProductId);
libraryBook.Book.AudibleKey = dlLic.AudibleKey;
libraryBook.Book.AudibleIV = dlLic.AudibleIV;
var client = new HttpClient();
client.DefaultRequestHeaders.Add("User-Agent", Resources.UserAgent);
var actualFilePath = await PerformDownloadAsync(
tempAaxFilename,
(p) => client.DownloadFileAsync(dlLic.DownloadUri.AbsoluteUri, tempAaxFilename, p));
System.Threading.Thread.Sleep(100);
// if bad file download, a 0-33 byte file will be created
// if service unavailable, a 52 byte string will be saved as file
var length = new FileInfo(actualFilePath).Length;
if (length > 100)
return actualFilePath;
var contents = File.ReadAllText(actualFilePath);
File.Delete(actualFilePath);
var exMsg = contents.StartsWithInsensitive(SERVICE_UNAVAILABLE)
? SERVICE_UNAVAILABLE
: "Error downloading file";
var ex = new Exception(exMsg);
Serilog.Log.Logger.Error(ex, "Download error {@DebugInfo}", new
{
libraryBook.Book.Title,
libraryBook.Book.AudibleProductId,
libraryBook.Book.Locale,
Account = libraryBook.Account?.ToMask() ?? "[empty]",
tempAaxFilename,
actualFilePath,
length,
contents
});
throw ex;
}
private async Task<string> downloadBookAsync(LibraryBook libraryBook, string tempAaxFilename)
{
validate(libraryBook);