402 lines
11 KiB
Rust
402 lines
11 KiB
Rust
use quick_xml::de::from_reader;
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use std::sync::Arc;
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use hyper::{body::HttpBody, Body, Request, Response, StatusCode};
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use serde::{Deserialize, Serialize};
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use crate::s3::error::*;
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use crate::s3::xml::{to_xml_with_header, xmlns_tag, IntValue, Value};
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use crate::signature::verify_signed_content;
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use garage_model::bucket_table::{
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parse_lifecycle_date, Bucket, LifecycleExpiration as GarageLifecycleExpiration,
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LifecycleFilter as GarageLifecycleFilter, LifecycleRule as GarageLifecycleRule,
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};
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use garage_model::garage::Garage;
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use garage_util::data::*;
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pub async fn handle_get_lifecycle(bucket: &Bucket) -> Result<Response<Body>, Error> {
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let param = bucket
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.params()
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.ok_or_internal_error("Bucket should not be deleted at this point")?;
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if let Some(lifecycle) = param.lifecycle_config.get() {
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let wc = LifecycleConfiguration::from_garage_lifecycle_config(lifecycle);
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let xml = to_xml_with_header(&wc)?;
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Ok(Response::builder()
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.status(StatusCode::OK)
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.header(http::header::CONTENT_TYPE, "application/xml")
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.body(Body::from(xml))?)
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} else {
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Ok(Response::builder()
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.status(StatusCode::NO_CONTENT)
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.body(Body::empty())?)
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}
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}
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pub async fn handle_delete_lifecycle(
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garage: Arc<Garage>,
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mut bucket: Bucket,
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) -> Result<Response<Body>, Error> {
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let param = bucket
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.params_mut()
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.ok_or_internal_error("Bucket should not be deleted at this point")?;
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param.lifecycle_config.update(None);
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garage.bucket_table.insert(&bucket).await?;
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Ok(Response::builder()
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.status(StatusCode::NO_CONTENT)
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.body(Body::empty())?)
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}
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pub async fn handle_put_lifecycle(
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garage: Arc<Garage>,
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mut bucket: Bucket,
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req: Request<Body>,
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content_sha256: Option<Hash>,
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) -> Result<Response<Body>, Error> {
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let body = req.into_body().collect().await?.to_bytes();
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if let Some(content_sha256) = content_sha256 {
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verify_signed_content(content_sha256, &body[..])?;
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}
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let param = bucket
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.params_mut()
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.ok_or_internal_error("Bucket should not be deleted at this point")?;
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let conf: LifecycleConfiguration = from_reader(&body as &[u8])?;
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let config = conf
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.validate_into_garage_lifecycle_config()
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.ok_or_bad_request("Invalid lifecycle configuration")?;
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param.lifecycle_config.update(Some(config));
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garage.bucket_table.insert(&bucket).await?;
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Ok(Response::builder()
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.status(StatusCode::OK)
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.body(Body::empty())?)
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}
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// ---- SERIALIZATION AND DESERIALIZATION TO/FROM S3 XML ----
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#[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
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pub struct LifecycleConfiguration {
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#[serde(serialize_with = "xmlns_tag", skip_deserializing)]
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pub xmlns: (),
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#[serde(rename = "Rule")]
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pub lifecycle_rules: Vec<LifecycleRule>,
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}
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#[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
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pub struct LifecycleRule {
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#[serde(rename = "ID")]
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pub id: Option<Value>,
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#[serde(rename = "Status")]
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pub status: Value,
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#[serde(rename = "Filter", default)]
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pub filter: Option<Filter>,
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#[serde(rename = "Expiration", default)]
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pub expiration: Option<Expiration>,
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#[serde(rename = "AbortIncompleteMultipartUpload", default)]
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pub abort_incomplete_mpu: Option<AbortIncompleteMpu>,
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}
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#[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord, Default)]
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pub struct Filter {
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#[serde(rename = "And")]
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pub and: Option<Box<Filter>>,
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#[serde(rename = "Prefix")]
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pub prefix: Option<Value>,
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#[serde(rename = "ObjectSizeGreaterThan")]
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pub size_gt: Option<IntValue>,
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#[serde(rename = "ObjectSizeLessThan")]
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pub size_lt: Option<IntValue>,
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}
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#[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
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pub struct Expiration {
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#[serde(rename = "Days")]
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pub days: Option<IntValue>,
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#[serde(rename = "Date")]
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pub at_date: Option<Value>,
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}
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#[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
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pub struct AbortIncompleteMpu {
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#[serde(rename = "DaysAfterInitiation")]
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pub days: IntValue,
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}
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impl LifecycleConfiguration {
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pub fn validate_into_garage_lifecycle_config(
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self,
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) -> Result<Vec<GarageLifecycleRule>, &'static str> {
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let mut ret = vec![];
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for rule in self.lifecycle_rules {
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ret.push(rule.validate_into_garage_lifecycle_rule()?);
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}
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Ok(ret)
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}
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pub fn from_garage_lifecycle_config(config: &[GarageLifecycleRule]) -> Self {
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Self {
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xmlns: (),
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lifecycle_rules: config
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.iter()
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.map(LifecycleRule::from_garage_lifecycle_rule)
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.collect(),
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}
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}
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}
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impl LifecycleRule {
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pub fn validate_into_garage_lifecycle_rule(self) -> Result<GarageLifecycleRule, &'static str> {
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let enabled = match self.status.0.as_str() {
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"Enabled" => true,
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"Disabled" => false,
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_ => return Err("invalid value for <Status>"),
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};
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let filter = self
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.filter
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.map(Filter::validate_into_garage_lifecycle_filter)
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.transpose()?
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.unwrap_or_default();
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let abort_incomplete_mpu_days = self.abort_incomplete_mpu.map(|x| x.days.0 as usize);
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let expiration = self
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.expiration
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.map(Expiration::validate_into_garage_lifecycle_expiration)
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.transpose()?;
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Ok(GarageLifecycleRule {
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id: self.id.map(|x| x.0),
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enabled,
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filter,
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abort_incomplete_mpu_days,
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expiration,
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})
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}
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pub fn from_garage_lifecycle_rule(rule: &GarageLifecycleRule) -> Self {
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Self {
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id: rule.id.as_deref().map(Value::from),
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status: if rule.enabled {
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Value::from("Enabled")
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} else {
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Value::from("Disabled")
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},
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filter: Filter::from_garage_lifecycle_filter(&rule.filter),
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abort_incomplete_mpu: rule
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.abort_incomplete_mpu_days
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.map(|days| AbortIncompleteMpu {
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days: IntValue(days as i64),
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}),
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expiration: rule
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.expiration
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.as_ref()
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.map(Expiration::from_garage_lifecycle_expiration),
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}
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}
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}
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impl Filter {
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pub fn count(&self) -> i32 {
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fn count<T>(x: &Option<T>) -> i32 {
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x.as_ref().map(|_| 1).unwrap_or(0)
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}
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count(&self.prefix) + count(&self.size_gt) + count(&self.size_lt)
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}
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pub fn validate_into_garage_lifecycle_filter(
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self,
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) -> Result<GarageLifecycleFilter, &'static str> {
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if self.count() > 0 && self.and.is_some() {
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Err("Filter tag cannot contain both <And> and another condition")
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} else if let Some(and) = self.and {
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if and.and.is_some() {
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return Err("Nested <And> tags");
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}
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Ok(and.internal_into_garage_lifecycle_filter())
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} else if self.count() > 1 {
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Err("Multiple Filter conditions must be wrapped in an <And> tag")
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} else {
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Ok(self.internal_into_garage_lifecycle_filter())
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}
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}
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fn internal_into_garage_lifecycle_filter(self) -> GarageLifecycleFilter {
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GarageLifecycleFilter {
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prefix: self.prefix.map(|x| x.0),
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size_gt: self.size_gt.map(|x| x.0 as u64),
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size_lt: self.size_lt.map(|x| x.0 as u64),
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}
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}
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pub fn from_garage_lifecycle_filter(rule: &GarageLifecycleFilter) -> Option<Self> {
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let filter = Filter {
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and: None,
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prefix: rule.prefix.as_deref().map(Value::from),
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size_gt: rule.size_gt.map(|x| IntValue(x as i64)),
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size_lt: rule.size_lt.map(|x| IntValue(x as i64)),
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};
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match filter.count() {
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0 => None,
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1 => Some(filter),
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_ => Some(Filter {
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and: Some(Box::new(filter)),
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..Default::default()
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}),
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}
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}
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}
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impl Expiration {
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pub fn validate_into_garage_lifecycle_expiration(
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self,
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) -> Result<GarageLifecycleExpiration, &'static str> {
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match (self.days, self.at_date) {
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(Some(_), Some(_)) => Err("cannot have both <Days> and <Date> in <Expiration>"),
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(None, None) => Err("<Expiration> must contain either <Days> or <Date>"),
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(Some(days), None) => Ok(GarageLifecycleExpiration::AfterDays(days.0 as usize)),
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(None, Some(date)) => {
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parse_lifecycle_date(&date.0)?;
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Ok(GarageLifecycleExpiration::AtDate(date.0))
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}
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}
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}
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pub fn from_garage_lifecycle_expiration(exp: &GarageLifecycleExpiration) -> Self {
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match exp {
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GarageLifecycleExpiration::AfterDays(days) => Expiration {
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days: Some(IntValue(*days as i64)),
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at_date: None,
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},
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GarageLifecycleExpiration::AtDate(date) => Expiration {
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days: None,
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at_date: Some(Value(date.to_string())),
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},
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use quick_xml::de::from_str;
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#[test]
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fn test_deserialize_lifecycle_config() -> Result<(), Error> {
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let message = r#"<?xml version="1.0" encoding="UTF-8"?>
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<LifecycleConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
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<Rule>
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<ID>id1</ID>
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<Status>Enabled</Status>
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<Filter>
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<Prefix>documents/</Prefix>
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</Filter>
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<AbortIncompleteMultipartUpload>
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<DaysAfterInitiation>7</DaysAfterInitiation>
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</AbortIncompleteMultipartUpload>
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</Rule>
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<Rule>
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<ID>id2</ID>
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<Status>Enabled</Status>
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<Filter>
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<And>
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<Prefix>logs/</Prefix>
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<ObjectSizeGreaterThan>1000000</ObjectSizeGreaterThan>
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</And>
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</Filter>
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<Expiration>
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<Days>365</Days>
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</Expiration>
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</Rule>
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</LifecycleConfiguration>"#;
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let conf: LifecycleConfiguration = from_str(message).unwrap();
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let ref_value = LifecycleConfiguration {
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xmlns: (),
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lifecycle_rules: vec![
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LifecycleRule {
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id: Some("id1".into()),
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status: "Enabled".into(),
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filter: Some(Filter {
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prefix: Some("documents/".into()),
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..Default::default()
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}),
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expiration: None,
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abort_incomplete_mpu: Some(AbortIncompleteMpu { days: IntValue(7) }),
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},
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LifecycleRule {
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id: Some("id2".into()),
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status: "Enabled".into(),
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filter: Some(Filter {
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and: Some(Box::new(Filter {
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prefix: Some("logs/".into()),
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size_gt: Some(IntValue(1000000)),
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..Default::default()
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})),
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..Default::default()
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}),
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expiration: Some(Expiration {
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days: Some(IntValue(365)),
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at_date: None,
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}),
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abort_incomplete_mpu: None,
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},
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],
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};
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assert_eq! {
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ref_value,
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conf
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};
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let message2 = to_xml_with_header(&ref_value)?;
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let cleanup = |c: &str| c.replace(char::is_whitespace, "");
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assert_eq!(cleanup(message), cleanup(&message2));
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// Check validation
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let validated = ref_value
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.validate_into_garage_lifecycle_config()
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.ok_or_bad_request("invalid xml config")?;
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let ref_config = vec![
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GarageLifecycleRule {
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id: Some("id1".into()),
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enabled: true,
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filter: GarageLifecycleFilter {
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prefix: Some("documents/".into()),
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..Default::default()
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},
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expiration: None,
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abort_incomplete_mpu_days: Some(7),
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},
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GarageLifecycleRule {
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id: Some("id2".into()),
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enabled: true,
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filter: GarageLifecycleFilter {
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prefix: Some("logs/".into()),
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size_gt: Some(1000000),
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..Default::default()
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},
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expiration: Some(GarageLifecycleExpiration::AfterDays(365)),
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abort_incomplete_mpu_days: None,
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},
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];
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assert_eq!(validated, ref_config);
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let message3 = to_xml_with_header(&LifecycleConfiguration::from_garage_lifecycle_config(
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&validated,
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))?;
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assert_eq!(cleanup(message), cleanup(&message3));
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Ok(())
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}
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}
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