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Merge branch 'clearer-error-content-disposition-migration' into 'next'

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make error if content disposition migration fails clearer, as well as logging the name of the responsible file

See merge request
This commit is contained in:
Matthias Ahouansou 2025-02-26 18:01:44 +00:00
commit 5b47e0f3d4
1 changed files with 65 additions and 63 deletions

128
src/database/mod.rs
View file

@ -934,71 +934,13 @@ impl KeyValueDatabase {
for file in fs::read_dir(services().globals.get_media_folder()).unwrap() {
let file = file.unwrap();
let mediaid = general_purpose::URL_SAFE_NO_PAD
.decode(file.file_name().into_string().unwrap())
.unwrap();
let file_name = file.file_name().into_string().unwrap();
let mut parts = mediaid.rsplit(|&b| b == 0xff);
let mediaid = general_purpose::URL_SAFE_NO_PAD.decode(&file_name).unwrap();
let mut removed_bytes = 0;
let content_type_bytes = parts.next().unwrap();
removed_bytes += content_type_bytes.len() + 1;
let content_disposition_bytes = parts
.next()
.ok_or_else(|| Error::bad_database("Media ID in db is invalid."))?;
removed_bytes += content_disposition_bytes.len();
let mut content_disposition =
utils::string_from_bytes(content_disposition_bytes).map_err(|_| {
Error::bad_database("Content Disposition in mediaid_file is invalid.")
})?;
if content_disposition.contains("filename=")
&& !content_disposition.contains("filename=\"")
{
content_disposition =
content_disposition.replacen("filename=", "filename=\"", 1);
content_disposition.push('"');
let mut new_key = mediaid[..(mediaid.len() - removed_bytes)].to_vec();
assert!(*new_key.last().unwrap() == 0xff);
let mut shorter_key = new_key.clone();
shorter_key.extend(
ruma::http_headers::ContentDisposition::new(
ruma::http_headers::ContentDispositionType::Inline,
)
.to_string()
.as_bytes(),
);
shorter_key.push(0xff);
shorter_key.extend_from_slice(content_type_bytes);
new_key.extend_from_slice(content_disposition.to_string().as_bytes());
new_key.push(0xff);
new_key.extend_from_slice(content_type_bytes);
// Some file names are too long. Ignore those.
match fs::rename(
services().globals.get_media_file(&mediaid),
services().globals.get_media_file(&new_key),
) {
Ok(_) => {
db.mediaid_file.insert(&new_key, &[])?;
}
Err(_) => {
fs::rename(
services().globals.get_media_file(&mediaid),
services().globals.get_media_file(&shorter_key),
)
.unwrap();
db.mediaid_file.insert(&shorter_key, &[])?;
}
}
} else {
db.mediaid_file.insert(&mediaid, &[])?;
if let Err(e) = migrate_content_disposition_format(mediaid, db) {
error!("Error migrating media file with name \"{file_name}\": {e}");
return Err(e);
}
}
services().globals.bump_database_version(16)?;
@ -1169,6 +1111,66 @@ impl KeyValueDatabase {
}
}
fn migrate_content_disposition_format(
mediaid: Vec<u8>,
db: &KeyValueDatabase,
) -> Result<(), Error> {
let mut parts = mediaid.rsplit(|&b| b == 0xff);
let mut removed_bytes = 0;
let content_type_bytes = parts.next().unwrap();
removed_bytes += content_type_bytes.len() + 1;
let content_disposition_bytes = parts
.next()
.ok_or_else(|| Error::bad_database("File with invalid name in media directory"))?;
removed_bytes += content_disposition_bytes.len();
let mut content_disposition = utils::string_from_bytes(content_disposition_bytes)
.map_err(|_| Error::bad_database("Content Disposition in mediaid_file is invalid."))?;
if content_disposition.contains("filename=") && !content_disposition.contains("filename=\"") {
content_disposition = content_disposition.replacen("filename=", "filename=\"", 1);
content_disposition.push('"');
let mut new_key = mediaid[..(mediaid.len() - removed_bytes)].to_vec();
assert!(*new_key.last().unwrap() == 0xff);
let mut shorter_key = new_key.clone();
shorter_key.extend(
ruma::http_headers::ContentDisposition::new(
ruma::http_headers::ContentDispositionType::Inline,
)
.to_string()
.as_bytes(),
);
shorter_key.push(0xff);
shorter_key.extend_from_slice(content_type_bytes);
new_key.extend_from_slice(content_disposition.to_string().as_bytes());
new_key.push(0xff);
new_key.extend_from_slice(content_type_bytes);
// Some file names are too long. Ignore those.
match fs::rename(
services().globals.get_media_file(&mediaid),
services().globals.get_media_file(&new_key),
) {
Ok(_) => {
db.mediaid_file.insert(&new_key, &[])?;
}
Err(_) => {
fs::rename(
services().globals.get_media_file(&mediaid),
services().globals.get_media_file(&shorter_key),
)
.unwrap();
db.mediaid_file.insert(&shorter_key, &[])?;
}
}
} else {
db.mediaid_file.insert(&mediaid, &[])?;
};
Ok(())
}
/// Sets the emergency password and push rules for the @conduit account in case emergency password is set
fn set_emergency_access() -> Result<bool> {
let conduit_user = services().globals.server_user();