| 1 | use std::time::Duration; |
| 2 | |
| 3 | use matrix_sdk::{ |
| 4 | attachment::{ |
| 5 | AttachmentConfig, AttachmentInfo, BaseAudioInfo, BaseFileInfo, BaseImageInfo, |
| 6 | BaseVideoInfo, Thumbnail, |
| 7 | }, |
| 8 | ruma::events::room::message::TextMessageEventContent, |
| 9 | }; |
| 10 | |
| 11 | use crate::{AttachmentUpload, Error, ErrorKind, UploadDetails}; |
| 12 | |
| 13 | pub(crate) fn prepare_upload( |
| 14 | mut upload: AttachmentUpload, |
| 15 | max_media_bytes: usize, |
| 16 | ) -> Result<(AttachmentUpload, mime::Mime, AttachmentConfig), Error> { |
| 17 | if upload.bytes.len() > max_media_bytes { |
| 18 | return Err(Error::new( |
| 19 | ErrorKind::MediaTooLarge, |
| 20 | "attachment exceeds the configured byte limit", |
| 21 | )); |
| 22 | } |
| 23 | let mimetype: mime::Mime = upload |
| 24 | .mimetype |
| 25 | .parse() |
| 26 | .map_err(|_| Error::new(ErrorKind::Invalid, "media MIME type is invalid"))?; |
| 27 | |
| 28 | let size = ruma::UInt::try_from(upload.bytes.len()).map_err(|_| { |
| 29 | Error::new( |
| 30 | ErrorKind::MediaTooLarge, |
| 31 | "attachment size is not representable", |
| 32 | ) |
| 33 | })?; |
| 34 | let info = match upload.details.as_ref() { |
| 35 | Some(UploadDetails::Image { |
| 36 | width, |
| 37 | height, |
| 38 | blurhash, |
| 39 | }) if mimetype.type_() == mime::IMAGE => AttachmentInfo::Image(BaseImageInfo { |
| 40 | width: width.map(Into::into), |
| 41 | height: height.map(Into::into), |
| 42 | size: Some(size), |
| 43 | blurhash: blurhash.clone(), |
| 44 | ..Default::default() |
| 45 | }), |
| 46 | Some(UploadDetails::Video { |
| 47 | width, |
| 48 | height, |
| 49 | duration_ms, |
| 50 | blurhash, |
| 51 | }) if mimetype.type_() == mime::VIDEO => AttachmentInfo::Video(BaseVideoInfo { |
| 52 | width: width.map(Into::into), |
| 53 | height: height.map(Into::into), |
| 54 | duration: duration_ms.map(Duration::from_millis), |
| 55 | size: Some(size), |
| 56 | blurhash: blurhash.clone(), |
| 57 | }), |
| 58 | Some(UploadDetails::Audio { duration_ms }) if mimetype.type_() == mime::AUDIO => { |
| 59 | AttachmentInfo::Audio(BaseAudioInfo { |
| 60 | duration: duration_ms.map(Duration::from_millis), |
| 61 | size: Some(size), |
| 62 | ..Default::default() |
| 63 | }) |
| 64 | } |
| 65 | Some(UploadDetails::Voice { |
| 66 | duration_ms, |
| 67 | waveform, |
| 68 | }) if mimetype.type_() == mime::AUDIO => { |
| 69 | if waveform.iter().any(|sample| *sample > 1024) { |
| 70 | return Err(Error::new( |
| 71 | ErrorKind::Invalid, |
| 72 | "voice waveform samples must be at most 1024", |
| 73 | )); |
| 74 | } |
| 75 | AttachmentInfo::Voice(BaseAudioInfo { |
| 76 | duration: Some(Duration::from_millis(*duration_ms)), |
| 77 | size: Some(size), |
| 78 | waveform: Some( |
| 79 | waveform |
| 80 | .iter() |
| 81 | .map(|sample| f32::from(*sample) / 1024.0) |
| 82 | .collect(), |
| 83 | ), |
| 84 | }) |
| 85 | } |
| 86 | Some(UploadDetails::File) |
| 87 | if mimetype.type_() != mime::IMAGE |
| 88 | && mimetype.type_() != mime::VIDEO |
| 89 | && mimetype.type_() != mime::AUDIO => |
| 90 | { |
| 91 | AttachmentInfo::File(BaseFileInfo { size: Some(size) }) |
| 92 | } |
| 93 | None => match mimetype.type_() { |
| 94 | mime::IMAGE => AttachmentInfo::Image(BaseImageInfo { |
| 95 | size: Some(size), |
| 96 | ..Default::default() |
| 97 | }), |
| 98 | mime::VIDEO => AttachmentInfo::Video(BaseVideoInfo { |
| 99 | size: Some(size), |
| 100 | ..Default::default() |
| 101 | }), |
| 102 | mime::AUDIO => AttachmentInfo::Audio(BaseAudioInfo { |
| 103 | size: Some(size), |
| 104 | ..Default::default() |
| 105 | }), |
| 106 | _ => AttachmentInfo::File(BaseFileInfo { size: Some(size) }), |
| 107 | }, |
| 108 | _ => { |
| 109 | return Err(Error::new( |
| 110 | ErrorKind::Invalid, |
| 111 | "attachment metadata does not match its MIME type", |
| 112 | )); |
| 113 | } |
| 114 | }; |
| 115 | if upload.thumbnail.is_some() && mimetype.type_() == mime::AUDIO { |
| 116 | return Err(Error::new( |
| 117 | ErrorKind::Invalid, |
| 118 | "audio attachments do not support thumbnails", |
| 119 | )); |
| 120 | } |
| 121 | let thumbnail = upload |
| 122 | .thumbnail |
| 123 | .take() |
| 124 | .map(|thumbnail| { |
| 125 | if thumbnail.bytes.len() > max_media_bytes |
| 126 | || thumbnail.width == 0 |
| 127 | || thumbnail.height == 0 |
| 128 | { |
| 129 | return Err(Error::new( |
| 130 | ErrorKind::MediaTooLarge, |
| 131 | "thumbnail size or dimensions are invalid", |
| 132 | )); |
| 133 | } |
| 134 | let content_type: mime::Mime = thumbnail |
| 135 | .mimetype |
| 136 | .parse() |
| 137 | .map_err(|_| Error::new(ErrorKind::Invalid, "thumbnail MIME type is invalid"))?; |
| 138 | if content_type.type_() != mime::IMAGE { |
| 139 | return Err(Error::new( |
| 140 | ErrorKind::Invalid, |
| 141 | "thumbnail MIME type must be an image", |
| 142 | )); |
| 143 | } |
| 144 | let size = ruma::UInt::try_from(thumbnail.bytes.len()).map_err(|_| { |
| 145 | Error::new( |
| 146 | ErrorKind::MediaTooLarge, |
| 147 | "thumbnail size is not representable", |
| 148 | ) |
| 149 | })?; |
| 150 | Ok(Thumbnail { |
| 151 | data: thumbnail.bytes, |
| 152 | content_type, |
| 153 | width: thumbnail.width.into(), |
| 154 | height: thumbnail.height.into(), |
| 155 | size, |
| 156 | }) |
| 157 | }) |
| 158 | .transpose()?; |
| 159 | let config = AttachmentConfig::new() |
| 160 | .info(info) |
| 161 | .thumbnail(thumbnail) |
| 162 | .caption(upload.caption.clone().map(TextMessageEventContent::plain)); |
| 163 | Ok((upload, mimetype, config)) |
| 164 | } |