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DownloadFileAsync supports PhotoStrippedSize

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Wizou 2021-12-28 12:12:38 +01:00
parent 9171268d19
commit 86ac336691
1 changed files with 22 additions and 15 deletions
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37
src/Client.cs
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@ -117,7 +117,7 @@ namespace WTelegram
#endif
"device_model" => Environment.Is64BitOperatingSystem ? "PC 64bit" : "PC 32bit",
"system_version" => System.Runtime.InteropServices.RuntimeInformation.OSDescription,
"app_version" => Assembly.GetEntryAssembly().GetName().Version.ToString(),
"app_version" => (Assembly.GetEntryAssembly() ?? AppDomain.CurrentDomain.GetAssemblies().FirstOrDefault(a => a.EntryPoint != null))?.GetName().Version.ToString() ?? "0.0",
"system_lang_code" => CultureInfo.InstalledUICulture.TwoLetterISOLanguageName,
"lang_pack" => "",
"lang_code" => CultureInfo.CurrentUICulture.TwoLetterISOLanguageName,
@ -1247,6 +1247,8 @@ namespace WTelegram
/// <returns>The file type of the photo</returns>
public async Task<Storage_FileType> DownloadFileAsync(Photo photo, Stream outputStream, PhotoSizeBase photoSize = null, ProgressCallback progress = null)
{
if (photoSize is PhotoStrippedSize psp)
return InflateStrippedThumb(outputStream, psp.bytes) ? Storage_FileType.jpeg : 0;
photoSize ??= photo.LargestPhotoSize;
var fileLocation = photo.ToFileLocation(photoSize);
return await DownloadFileAsync(fileLocation, outputStream, photo.dc_id, photoSize.FileSize, progress);
@ -1260,6 +1262,8 @@ namespace WTelegram
/// <returns>MIME type of the document/thumbnail</returns>
public async Task<string> DownloadFileAsync(Document document, Stream outputStream, PhotoSizeBase thumbSize = null, ProgressCallback progress = null)
{
if (thumbSize is PhotoStrippedSize psp)
return InflateStrippedThumb(outputStream, psp.bytes) ? "image/jpeg" : null;
var fileLocation = document.ToFileLocation(thumbSize);
var fileType = await DownloadFileAsync(fileLocation, outputStream, document.dc_id, thumbSize?.FileSize ?? document.size, progress);
return thumbSize == null ? document.mime_type : "image/" + fileType;
@ -1394,25 +1398,28 @@ namespace WTelegram
return 0;
}
if (miniThumb && !big)
{
if (stripped_thumb == null || stripped_thumb.Length <= 3 || stripped_thumb[0] != 1)
return 0;
var header = Helpers.StrippedThumbJPG;
outputStream.Write(header, 0, 164);
outputStream.WriteByte(stripped_thumb[1]);
outputStream.WriteByte(0);
outputStream.WriteByte(stripped_thumb[2]);
outputStream.Write(header, 167, header.Length - 167);
outputStream.Write(stripped_thumb, 3, stripped_thumb.Length - 3);
outputStream.WriteByte(0xff);
outputStream.WriteByte(0xd9);
return Storage_FileType.jpeg;
}
return InflateStrippedThumb(outputStream, stripped_thumb) ? Storage_FileType.jpeg : 0;
var fileLocation = new InputPeerPhotoFileLocation { peer = peer.ToInputPeer(), photo_id = photo_id };
if (big) fileLocation.flags |= InputPeerPhotoFileLocation.Flags.big;
return await DownloadFileAsync(fileLocation, outputStream, dc_id);
}
private static bool InflateStrippedThumb(Stream outputStream, byte[] stripped_thumb)
{
if (stripped_thumb == null || stripped_thumb.Length <= 3 || stripped_thumb[0] != 1)
return false;
var header = Helpers.StrippedThumbJPG;
outputStream.Write(header, 0, 164);
outputStream.WriteByte(stripped_thumb[1]);
outputStream.WriteByte(0);
outputStream.WriteByte(stripped_thumb[2]);
outputStream.Write(header, 167, header.Length - 167);
outputStream.Write(stripped_thumb, 3, stripped_thumb.Length - 3);
outputStream.WriteByte(0xff);
outputStream.WriteByte(0xd9);
return true;
}
/// <summary>Helper method that tries to fetch all participants from a Channel (beyond Telegram server-side limitations)</summary>
/// <param name="channel">The channel to query</param>
/// <param name="includeKickBan">Also fetch the kicked/banned members?</param>