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feat: download media and thumbnails over federation

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This commit is contained in:
Timo Kösters 2020-09-14 14:20:38 +02:00
parent 4e44fedbcd
commit aa5e9e607e
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GPG key ID: 24DA7517711A2BA4
2 changed files with 90 additions and 7 deletions
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69
src/client_server/media.rs
View file

@ -1,5 +1,7 @@
use super::State;
use crate::{database::media::FileMeta, utils, ConduitResult, Database, Error, Ruma};
use crate::{
database::media::FileMeta, server_server, utils, ConduitResult, Database, Error, Ruma,
};
use ruma::api::client::{
error::ErrorKind,
r0::media::{create_content, get_content, get_content_thumbnail, get_media_config},
@ -35,7 +37,7 @@ pub fn create_content_route(
utils::random_string(MXC_LENGTH)
);
db.media
.create(mxc.clone(), &body.filename, &body.content_type, &body.file)?;
.create(mxc.clone(), &body.filename.as_deref(), &body.content_type, &body.file)?;
Ok(create_content::Response { content_uri: mxc }.into())
}
@ -47,19 +49,25 @@ pub fn create_content_route(
data = "<body>"
)
)]
pub fn get_content_route(
pub async fn get_content_route(
db: State<'_, Database>,
body: Ruma<get_content::Request<'_>>,
_server_name: String,
_media_id: String,
) -> ConduitResult<get_content::Response> {
let mxc = format!(
"mxc://{}/{}",
db.globals.server_name(),
utils::random_string(MXC_LENGTH)
);
if let Some(FileMeta {
filename,
content_type,
file,
}) = db
.media
.get(format!("mxc://{}/{}", body.server_name, body.media_id))?
.get(&mxc)?
{
Ok(get_content::Response {
file,
@ -67,6 +75,26 @@ pub fn get_content_route(
content_disposition: filename.unwrap_or_default(), // TODO: Spec says this should be optional
}
.into())
} else if body.allow_remote {
let get_content_response = server_server::send_request(
&db,
body.server_name.as_ref(),
get_content::Request {
allow_remote: false,
server_name: &body.server_name,
media_id: &body.media_id,
},
)
.await?;
db.media.create(
mxc,
&Some(&get_content_response.content_disposition),
&get_content_response.content_type,
&get_content_response.file,
)?;
Ok(get_content_response.into())
} else {
Err(Error::BadRequest(ErrorKind::NotFound, "Media not found."))
}
@ -79,7 +107,7 @@ pub fn get_content_route(
data = "<body>"
)
)]
pub fn get_content_thumbnail_route(
pub async fn get_content_thumbnail_route(
db: State<'_, Database>,
body: Ruma<get_content_thumbnail::Request<'_>>,
_server_name: String,
@ -97,6 +125,37 @@ pub fn get_content_thumbnail_route(
.map_err(|_| Error::BadRequest(ErrorKind::InvalidParam, "Width is invalid."))?,
)? {
Ok(get_content_thumbnail::Response { file, content_type }.into())
} else if body.allow_remote {
let get_thumbnail_response = server_server::send_request(
&db,
body.server_name.as_ref(),
get_content_thumbnail::Request {
allow_remote: false,
height: body.height,
width: body.width,
method: body.method,
server_name: &body.server_name,
media_id: &body.media_id,
},
)
.await?;
let mxc = format!(
"mxc://{}/{}",
db.globals.server_name(),
utils::random_string(MXC_LENGTH)
);
db.media.upload_thumbnail(
mxc,
&None,
&get_thumbnail_response.content_type,
body.width.try_into().expect("all UInts are valid u32s"),
body.height.try_into().expect("all UInts are valid u32s"),
&get_thumbnail_response.file,
)?;
Ok(get_thumbnail_response.into())
} else {
Err(Error::BadRequest(ErrorKind::NotFound, "Media not found."))
}

28
src/database/media.rs
View file

@ -16,7 +16,7 @@ impl Media {
pub fn create(
&self,
mxc: String,
filename: &Option<String>,
filename: &Option<&str>,
content_type: &str,
file: &[u8],
) -> Result<()> {
@ -34,8 +34,32 @@ impl Media {
Ok(())
}
/// Uploads or replaces a file thumbnail.
pub fn upload_thumbnail(
&self,
mxc: String,
filename: &Option<String>,
content_type: &str,
width: u32,
height: u32,
file: &[u8],
) -> Result<()> {
let mut key = mxc.as_bytes().to_vec();
key.push(0xff);
key.extend_from_slice(&width.to_be_bytes());
key.extend_from_slice(&height.to_be_bytes());
key.push(0xff);
key.extend_from_slice(filename.as_ref().map(|f| f.as_bytes()).unwrap_or_default());
key.push(0xff);
key.extend_from_slice(content_type.as_bytes());
self.mediaid_file.insert(key, file)?;
Ok(())
}
/// Downloads a file.
pub fn get(&self, mxc: String) -> Result<Option<FileMeta>> {
pub fn get(&self, mxc: &str) -> Result<Option<FileMeta>> {
let mut prefix = mxc.as_bytes().to_vec();
prefix.push(0xff);
prefix.extend_from_slice(&0_u32.to_be_bytes()); // Width = 0 if it's not a thumbnail