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bakckup::manifest: use tools::json for canonical representation

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Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
This commit is contained in:
Wolfgang Bumiller
2021-01-15 11:06:16 +01:00
committed by Thomas Lamprecht
parent 9ff747ef50
commit aefd74197a
1 changed files with 1 additions and 43 deletions
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44
src/backup/manifest.rs
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@ -149,49 +149,7 @@ impl BackupManifest {
// Generate canonical json
fn to_canonical_json(value: &Value) -> Result<Vec<u8>, Error> {
let mut data = Vec::new();
Self::write_canonical_json(value, &mut data)?;
Ok(data)
}
fn write_canonical_json(value: &Value, output: &mut Vec<u8>) -> Result<(), Error> {
match value {
Value::Null => bail!("got unexpected null value"),
Value::String(_) | Value::Number(_) | Value::Bool(_) => {
serde_json::to_writer(output, &value)?;
}
Value::Array(list) => {
output.push(b'[');
let mut iter = list.iter();
if let Some(item) = iter.next() {
Self::write_canonical_json(item, output)?;
for item in iter {
output.push(b',');
Self::write_canonical_json(item, output)?;
}
}
output.push(b']');
}
Value::Object(map) => {
output.push(b'{');
let mut keys: Vec<&str> = map.keys().map(String::as_str).collect();
keys.sort();
let mut iter = keys.into_iter();
if let Some(key) = iter.next() {
serde_json::to_writer(&mut *output, &key)?;
output.push(b':');
Self::write_canonical_json(&map[key], output)?;
for key in iter {
output.push(b',');
serde_json::to_writer(&mut *output, &key)?;
output.push(b':');
Self::write_canonical_json(&map[key], output)?;
}
}
output.push(b'}');
}
}
Ok(())
crate::tools::json::to_canonical_json(value)
}
/// Compute manifest signature