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connector/matrix: check the telegram image size limits

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Signed-off-by: Sumner Evans <sumner.evans@automattic.com>
This commit is contained in:
Sumner Evans
2024-11-06 08:47:02 -07:00
parent 1b4416f291
commit ada41742a1
3 changed files with 13 additions and 5 deletions
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pkg/connector/matrix.go
+13 -1
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@@ -64,8 +64,20 @@ func (t *TelegramClient) transferMediaToTelegram(ctx context.Context, content *e
return err
}
// Telegram restricts photos in the following ways according to:
// https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1input_message_photo.html#ae1229ec5026a0b29dc398d87211bf572
//
// * The photo must be at most 10 MB in size.
// * The photo's width and height must not exceed 10,000 in total
// * Width and height ratio must be at most 20.
//
// We also have the image_as_file_pixels configuration threshold to
// prevent Telegram from compressing the file.
aspectRatio := float64(max(cfg.Height, cfg.Width)) / float64(min(cfg.Height, cfg.Width))
forceDocument = cfg.Height*cfg.Width > t.main.Config.ImageAsFilePixels ||
info.Size() > int64(t.main.Config.ImageAsFileSize*1024*1024)
info.Size() > int64(10*1024*1024) ||
aspectRatio > 20 ||
cfg.Height+cfg.Width > 10000
}
uploader := uploader.NewUploader(t.client.API())