use quick_xml::de::from_reader; use std::sync::Arc; use hyper::{Body, Request, Response, StatusCode}; use serde::{Deserialize, Serialize}; use crate::error::*; use crate::s3_xml::{to_xml_with_header, xmlns_tag, IntValue, Value}; use crate::signature::verify_signed_content; use garage_model::bucket_table::*; use garage_model::garage::Garage; use garage_table::*; use garage_util::data::*; pub async fn handle_get_website(bucket: &Bucket) -> Result<Response<Body>, Error> { let param = bucket .params() .ok_or_internal_error("Bucket should not be deleted at this point")?; if let Some(website) = param.website_config.get() { let wc = WebsiteConfiguration { xmlns: (), error_document: website.error_document.as_ref().map(|v| Key { key: Value(v.to_string()), }), index_document: Some(Suffix { suffix: Value(website.index_document.to_string()), }), redirect_all_requests_to: None, routing_rules: None, }; let xml = to_xml_with_header(&wc)?; Ok(Response::builder() .status(StatusCode::OK) .header(http::header::CONTENT_TYPE, "application/xml") .body(Body::from(xml))?) } else { Ok(Response::builder() .status(StatusCode::NO_CONTENT) .body(Body::empty())?) } } pub async fn handle_delete_website( garage: Arc<Garage>, bucket_id: Uuid, ) -> Result<Response<Body>, Error> { let mut bucket = garage .bucket_table .get(&EmptyKey, &bucket_id) .await? .ok_or(Error::NoSuchBucket)?; let param = bucket .params_mut() .ok_or_internal_error("Bucket should not be deleted at this point")?; param.website_config.update(None); garage.bucket_table.insert(&bucket).await?; Ok(Response::builder() .status(StatusCode::NO_CONTENT) .body(Body::empty())?) } pub async fn handle_put_website( garage: Arc<Garage>, bucket_id: Uuid, req: Request<Body>, content_sha256: Option<Hash>, ) -> Result<Response<Body>, Error> { let body = hyper::body::to_bytes(req.into_body()).await?; if let Some(content_sha256) = content_sha256 { verify_signed_content(content_sha256, &body[..])?; } let mut bucket = garage .bucket_table .get(&EmptyKey, &bucket_id) .await? .ok_or(Error::NoSuchBucket)?; let param = bucket .params_mut() .ok_or_internal_error("Bucket should not be deleted at this point")?; let conf: WebsiteConfiguration = from_reader(&body as &[u8])?; conf.validate()?; param .website_config .update(Some(conf.into_garage_website_config()?)); garage.bucket_table.insert(&bucket).await?; Ok(Response::builder() .status(StatusCode::OK) .body(Body::empty())?) } #[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)] pub struct WebsiteConfiguration { #[serde(serialize_with = "xmlns_tag", skip_deserializing)] pub xmlns: (), #[serde(rename = "ErrorDocument")] pub error_document: Option<Key>, #[serde(rename = "IndexDocument")] pub index_document: Option<Suffix>, #[serde(rename = "RedirectAllRequestsTo")] pub redirect_all_requests_to: Option<Target>, #[serde(rename = "RoutingRules")] pub routing_rules: Option<Vec<RoutingRule>>, } #[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)] pub struct RoutingRule { #[serde(rename = "RoutingRule")] pub inner: RoutingRuleInner, } #[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)] pub struct RoutingRuleInner { #[serde(rename = "Condition")] pub condition: Option<Condition>, #[serde(rename = "Redirect")] pub redirect: Redirect, } #[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)] pub struct Key { #[serde(rename = "Key")] pub key: Value, } #[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)] pub struct Suffix { #[serde(rename = "Suffix")] pub suffix: Value, } #[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)] pub struct Target { #[serde(rename = "HostName")] pub hostname: Value, #[serde(rename = "Protocol")] pub protocol: Option<Value>, } #[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)] pub struct Condition { #[serde(rename = "HttpErrorCodeReturnedEquals")] pub http_error_code: Option<IntValue>, #[serde(rename = "KeyPrefixEquals")] pub prefix: Option<Value>, } #[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)] pub struct Redirect { #[serde(rename = "HostName")] pub hostname: Option<Value>, #[serde(rename = "Protocol")] pub protocol: Option<Value>, #[serde(rename = "HttpRedirectCode")] pub http_redirect_code: Option<IntValue>, #[serde(rename = "ReplaceKeyPrefixWith")] pub replace_prefix: Option<Value>, #[serde(rename = "ReplaceKeyWith")] pub replace_full: Option<Value>, } impl WebsiteConfiguration { pub fn validate(&self) -> Result<(), Error> { if self.redirect_all_requests_to.is_some() && (self.error_document.is_some() || self.index_document.is_some() || self.routing_rules.is_some()) { return Err(Error::BadRequest( "Bad XML: can't have RedirectAllRequestsTo and other fields".to_owned(), )); } if let Some(ref ed) = self.error_document { ed.validate()?; } if let Some(ref id) = self.index_document { id.validate()?; } if let Some(ref rart) = self.redirect_all_requests_to { rart.validate()?; } if let Some(ref rrs) = self.routing_rules { for rr in rrs { rr.inner.validate()?; } } Ok(()) } pub fn into_garage_website_config(self) -> Result<WebsiteConfig, Error> { if self.redirect_all_requests_to.is_some() { Err(Error::NotImplemented( "S3 website redirects are not currently implemented in Garage.".into(), )) } else if self.routing_rules.map(|x| !x.is_empty()).unwrap_or(false) { Err(Error::NotImplemented( "S3 routing rules are not currently implemented in Garage.".into(), )) } else { Ok(WebsiteConfig { index_document: self .index_document .map(|x| x.suffix.0) .unwrap_or_else(|| "index.html".to_string()), error_document: self.error_document.map(|x| x.key.0), }) } } } impl Key { pub fn validate(&self) -> Result<(), Error> { if self.key.0.is_empty() { Err(Error::BadRequest( "Bad XML: error document specified but empty".to_owned(), )) } else { Ok(()) } } } impl Suffix { pub fn validate(&self) -> Result<(), Error> { if self.suffix.0.is_empty() | self.suffix.0.contains('/') { Err(Error::BadRequest( "Bad XML: index document is empty or contains /".to_owned(), )) } else { Ok(()) } } } impl Target { pub fn validate(&self) -> Result<(), Error> { if let Some(ref protocol) = self.protocol { if protocol.0 != "http" && protocol.0 != "https" { return Err(Error::BadRequest("Bad XML: invalid protocol".to_owned())); } } Ok(()) } } impl RoutingRuleInner { pub fn validate(&self) -> Result<(), Error> { let has_prefix = self .condition .as_ref() .map(|c| c.prefix.as_ref()) .flatten() .is_some(); self.redirect.validate(has_prefix) } } impl Redirect { pub fn validate(&self, has_prefix: bool) -> Result<(), Error> { if self.replace_prefix.is_some() { if self.replace_full.is_some() { return Err(Error::BadRequest( "Bad XML: both ReplaceKeyPrefixWith and ReplaceKeyWith are set".to_owned(), )); } if !has_prefix { return Err(Error::BadRequest( "Bad XML: ReplaceKeyPrefixWith is set, but KeyPrefixEquals isn't".to_owned(), )); } } if let Some(ref protocol) = self.protocol { if protocol.0 != "http" && protocol.0 != "https" { return Err(Error::BadRequest("Bad XML: invalid protocol".to_owned())); } } // TODO there are probably more invalide cases, but which ones? Ok(()) } } #[cfg(test)] mod tests { use super::*; use quick_xml::de::from_str; #[test] fn test_deserialize() -> Result<(), Error> { let message = r#"<?xml version="1.0" encoding="UTF-8"?> <WebsiteConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"> <ErrorDocument> <Key>my-error-doc</Key> </ErrorDocument> <IndexDocument> <Suffix>my-index</Suffix> </IndexDocument> <RedirectAllRequestsTo> <HostName>garage.tld</HostName> <Protocol>https</Protocol> </RedirectAllRequestsTo> <RoutingRules> <RoutingRule> <Condition> <HttpErrorCodeReturnedEquals>404</HttpErrorCodeReturnedEquals> <KeyPrefixEquals>prefix1</KeyPrefixEquals> </Condition> <Redirect> <HostName>gara.ge</HostName> <Protocol>http</Protocol> <HttpRedirectCode>303</HttpRedirectCode> <ReplaceKeyPrefixWith>prefix2</ReplaceKeyPrefixWith> <ReplaceKeyWith>fullkey</ReplaceKeyWith> </Redirect> </RoutingRule> </RoutingRules> </WebsiteConfiguration>"#; let conf: WebsiteConfiguration = from_str(message).unwrap(); let ref_value = WebsiteConfiguration { xmlns: (), error_document: Some(Key { key: Value("my-error-doc".to_owned()), }), index_document: Some(Suffix { suffix: Value("my-index".to_owned()), }), redirect_all_requests_to: Some(Target { hostname: Value("garage.tld".to_owned()), protocol: Some(Value("https".to_owned())), }), routing_rules: Some(vec![RoutingRule { inner: RoutingRuleInner { condition: Some(Condition { http_error_code: Some(IntValue(404)), prefix: Some(Value("prefix1".to_owned())), }), redirect: Redirect { hostname: Some(Value("gara.ge".to_owned())), protocol: Some(Value("http".to_owned())), http_redirect_code: Some(IntValue(303)), replace_prefix: Some(Value("prefix2".to_owned())), replace_full: Some(Value("fullkey".to_owned())), }, }, }]), }; assert_eq! { ref_value, conf } let message2 = to_xml_with_header(&ref_value)?; let cleanup = |c: &str| c.replace(char::is_whitespace, ""); assert_eq!(cleanup(message), cleanup(&message2)); Ok(()) } }