109 lines
3.5 KiB
Rust
109 lines
3.5 KiB
Rust
use crate::{
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config::{AudioCodec, ImageFormat, VideoCodec},
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either::Either,
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error::{Error, UploadError},
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ffmpeg::FileFormat,
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magick::ValidInputType,
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};
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use actix_web::web::Bytes;
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use tokio::io::AsyncRead;
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struct UnvalidatedBytes {
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bytes: Bytes,
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written: usize,
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}
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impl UnvalidatedBytes {
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fn new(bytes: Bytes) -> Self {
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UnvalidatedBytes { bytes, written: 0 }
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}
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}
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impl AsyncRead for UnvalidatedBytes {
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fn poll_read(
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mut self: std::pin::Pin<&mut Self>,
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_cx: &mut std::task::Context<'_>,
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buf: &mut tokio::io::ReadBuf<'_>,
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) -> std::task::Poll<std::io::Result<()>> {
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let bytes_to_write = (self.bytes.len() - self.written).min(buf.remaining());
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if bytes_to_write > 0 {
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let end = self.written + bytes_to_write;
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buf.put_slice(&self.bytes[self.written..end]);
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self.written = end;
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}
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std::task::Poll::Ready(Ok(()))
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}
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}
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#[tracing::instrument(skip_all)]
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pub(crate) async fn validate_bytes(
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bytes: Bytes,
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prescribed_format: Option<ImageFormat>,
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enable_silent_video: bool,
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enable_full_video: bool,
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video_codec: VideoCodec,
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audio_codec: Option<AudioCodec>,
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validate: bool,
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) -> Result<(ValidInputType, impl AsyncRead + Unpin), Error> {
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let input_type =
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if let Some(input_type) = crate::ffmpeg::input_type_bytes(bytes.clone()).await? {
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input_type
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} else {
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crate::magick::input_type_bytes(bytes.clone()).await?
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};
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if !validate {
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return Ok((input_type, Either::left(UnvalidatedBytes::new(bytes))));
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}
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match (input_type.to_file_format(), prescribed_format) {
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(FileFormat::Video(video_format), _) => {
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if !(enable_silent_video || enable_full_video) {
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return Err(UploadError::SilentVideoDisabled.into());
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}
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Ok((
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ValidInputType::from_video_codec(video_codec),
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Either::right(Either::left(Either::left(
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crate::ffmpeg::trancsocde_bytes(
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bytes,
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video_format,
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enable_full_video,
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video_codec,
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audio_codec,
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)
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.await?,
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))),
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))
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}
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(FileFormat::Image(image_format), Some(format)) if image_format != format => Ok((
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ValidInputType::from_format(format),
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Either::right(Either::left(Either::right(
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crate::magick::convert_bytes_read(bytes, format)?,
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))),
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)),
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(FileFormat::Image(ImageFormat::Webp), _) => Ok((
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ValidInputType::Webp,
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Either::right(Either::left(Either::right(
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crate::magick::convert_bytes_read(bytes, ImageFormat::Webp)?,
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))),
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)),
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(FileFormat::Image(image_format), _) => {
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if crate::exiftool::needs_reorienting(bytes.clone()).await? {
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Ok((
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ValidInputType::from_format(image_format),
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Either::right(Either::left(Either::right(
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crate::magick::convert_bytes_read(bytes, image_format)?,
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))),
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))
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} else {
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Ok((
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ValidInputType::from_format(image_format),
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Either::right(Either::right(crate::exiftool::clear_metadata_bytes_read(
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bytes,
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)?)),
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))
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}
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}
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}
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}
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