Merge branch 'master' into feature/website

author: Quentin <quentin@deuxfleurs.fr> 2020-11-19 14:39:30 +0100
committer: Quentin <quentin@deuxfleurs.fr> 2020-11-19 14:39:30 +0100
commit: fc427b0b66241785ecd3fe23ec3e4ac72aaed1da (patch)
tree: ea406de04a7a11c09c6d758ca97ba53fc2bdfbe4 /src/api
parent: 6076d869b14aa38059d54a2dece222ad7b9da3bc (diff)
parent: 044d7988779aadac9290b58ceb077c1211670aed (diff)
download: garage-fc427b0b66241785ecd3fe23ec3e4ac72aaed1da.tar.gz
garage-fc427b0b66241785ecd3fe23ec3e4ac72aaed1da.zip
10 files changed, 209 insertions, 161 deletions
diff --git a/src/api/Cargo.toml b/src/api/Cargo.toml
index 4e0599d5..578cb9d5 100644
--- a/src/api/Cargo.toml
+++ b/src/api/Cargo.toml
@@ -17,6 +17,7 @@ garage_util = { version = "0.1", path = "../util" }
 garage_table = { version = "0.1.1", path = "../table" }
 garage_model = { version = "0.1.1", path = "../model" }
 
+err-derive = "0.2.3"
 bytes = "0.4"
 hex = "0.3"
 log = "0.4"
diff --git a/src/api/api_server.rs b/src/api/api_server.rs
index 9dc74dac..ec02572d 100644
--- a/src/api/api_server.rs
+++ b/src/api/api_server.rs
@@ -7,10 +7,11 @@ use hyper::server::conn::AddrStream;
 use hyper::service::{make_service_fn, service_fn};
 use hyper::{Body, Method, Request, Response, Server};
 
-use garage_util::error::Error;
+use garage_util::error::Error as GarageError;
 
 use garage_model::garage::Garage;
 
+use crate::error::*;
 use crate::signature::check_signature;
 
 use crate::s3_copy::*;
@@ -22,14 +23,14 @@ use crate::s3_put::*;
 pub async fn run_api_server(
 	garage: Arc<Garage>,
 	shutdown_signal: impl Future<Output = ()>,
-) -> Result<(), Error> {
+) -> Result<(), GarageError> {
 	let addr = &garage.config.s3_api.api_bind_addr;
 
 	let service = make_service_fn(|conn: &AddrStream| {
 		let garage = garage.clone();
 		let client_addr = conn.remote_addr();
 		async move {
-			Ok::<_, Error>(service_fn(move |req: Request<Body>| {
+			Ok::<_, GarageError>(service_fn(move |req: Request<Body>| {
 				let garage = garage.clone();
 				handler(garage, req, client_addr)
 			}))
@@ -49,7 +50,7 @@ async fn handler(
 	garage: Arc<Garage>,
 	req: Request<Body>,
 	addr: SocketAddr,
-) -> Result<Response<Body>, Error> {
+) -> Result<Response<Body>, GarageError> {
 	info!("{} {} {}", addr, req.method(), req.uri());
 	debug!("{:?}", req);
 	match handler_inner(garage, req).await {
@@ -131,10 +132,7 @@ async fn handler_inner(garage: Arc<Garage>, req: Request<Body>) -> Result<Respon
 							source_bucket
 						)));
 					}
-					let source_key = match source_key {
-						None => return Err(Error::BadRequest(format!("No source key specified"))),
-						Some(x) => x,
-					};
+					let source_key = source_key.ok_or_bad_request("No source key specified")?;
 					Ok(handle_copy(garage, &bucket, &key, &source_bucket, &source_key).await?)
 				} else {
 					// PutObject query
@@ -205,9 +203,8 @@ async fn handler_inner(garage: Arc<Garage>, req: Request<Body>) -> Result<Respon
 				let max_keys = params
 					.get("max-keys")
 					.map(|x| {
-						x.parse::<usize>().map_err(|e| {
-							Error::BadRequest(format!("Invalid value for max-keys: {}", e))
-						})
+						x.parse::<usize>()
+							.ok_or_bad_request("Invalid value for max-keys")
 					})
 					.unwrap_or(Ok(1000))?;
 				let prefix = params.get("prefix").map(|x| x.as_str()).unwrap_or(&"");
diff --git a/src/api/error.rs b/src/api/error.rs
new file mode 100644
index 00000000..ddb021db
--- /dev/null
+++ b/src/api/error.rs
@@ -0,0 +1,116 @@
+use err_derive::Error;
+use hyper::StatusCode;
+
+use garage_util::error::Error as GarageError;
+
+#[derive(Debug, Error)]
+pub enum Error {
+	// Category: internal error
+	#[error(display = "Internal error: {}", _0)]
+	InternalError(#[error(source)] GarageError),
+
+	#[error(display = "Internal error (Hyper error): {}", _0)]
+	Hyper(#[error(source)] hyper::Error),
+
+	#[error(display = "Internal error (HTTP error): {}", _0)]
+	HTTP(#[error(source)] http::Error),
+
+	// Category: cannot process
+	#[error(display = "Forbidden: {}", _0)]
+	Forbidden(String),
+
+	#[error(display = "Not found")]
+	NotFound,
+
+	// Category: bad request
+	#[error(display = "Invalid UTF-8: {}", _0)]
+	InvalidUTF8(#[error(source)] std::str::Utf8Error),
+
+	#[error(display = "Invalid XML: {}", _0)]
+	InvalidXML(#[error(source)] roxmltree::Error),
+
+	#[error(display = "Invalid header value: {}", _0)]
+	InvalidHeader(#[error(source)] hyper::header::ToStrError),
+
+	#[error(display = "Invalid HTTP range: {:?}", _0)]
+	InvalidRange(#[error(from)] http_range::HttpRangeParseError),
+
+	#[error(display = "Bad request: {}", _0)]
+	BadRequest(String),
+}
+
+impl Error {
+	pub fn http_status_code(&self) -> StatusCode {
+		match self {
+			Error::NotFound => StatusCode::NOT_FOUND,
+			Error::Forbidden(_) => StatusCode::FORBIDDEN,
+			Error::InternalError(GarageError::RPC(_)) => StatusCode::SERVICE_UNAVAILABLE,
+			Error::InternalError(_) | Error::Hyper(_) | Error::HTTP(_) => {
+				StatusCode::INTERNAL_SERVER_ERROR
+			}
+			_ => StatusCode::BAD_REQUEST,
+		}
+	}
+}
+
+pub trait OkOrBadRequest {
+	type S2;
+	fn ok_or_bad_request(self, reason: &'static str) -> Self::S2;
+}
+
+impl<T, E> OkOrBadRequest for Result<T, E>
+where
+	E: std::fmt::Display,
+{
+	type S2 = Result<T, Error>;
+	fn ok_or_bad_request(self, reason: &'static str) -> Result<T, Error> {
+		match self {
+			Ok(x) => Ok(x),
+			Err(e) => Err(Error::BadRequest(format!("{}: {}", reason, e))),
+		}
+	}
+}
+
+impl<T> OkOrBadRequest for Option<T> {
+	type S2 = Result<T, Error>;
+	fn ok_or_bad_request(self, reason: &'static str) -> Result<T, Error> {
+		match self {
+			Some(x) => Ok(x),
+			None => Err(Error::BadRequest(format!("{}", reason))),
+		}
+	}
+}
+
+pub trait OkOrInternalError {
+	type S2;
+	fn ok_or_internal_error(self, reason: &'static str) -> Self::S2;
+}
+
+impl<T, E> OkOrInternalError for Result<T, E>
+where
+	E: std::fmt::Display,
+{
+	type S2 = Result<T, Error>;
+	fn ok_or_internal_error(self, reason: &'static str) -> Result<T, Error> {
+		match self {
+			Ok(x) => Ok(x),
+			Err(e) => Err(Error::InternalError(GarageError::Message(format!(
+				"{}: {}",
+				reason, e
+			)))),
+		}
+	}
+}
+
+impl<T> OkOrInternalError for Option<T> {
+	type S2 = Result<T, Error>;
+	fn ok_or_internal_error(self, reason: &'static str) -> Result<T, Error> {
+		match self {
+			Some(x) => Ok(x),
+			None => Err(Error::InternalError(GarageError::Message(format!(
+				"{}",
+				reason
+			)))),
+		}
+	}
+}
diff --git a/src/api/lib.rs b/src/api/lib.rs
index df2fd045..9bb07925 100644
--- a/src/api/lib.rs
+++ b/src/api/lib.rs
@@ -1,6 +1,8 @@
 #[macro_use]
 extern crate log;
 
+pub mod error;
+
 pub mod encoding;
 
 pub mod api_server;
diff --git a/src/api/s3_copy.rs b/src/api/s3_copy.rs
index db790d95..5997e4fe 100644
--- a/src/api/s3_copy.rs
+++ b/src/api/s3_copy.rs
@@ -6,13 +6,14 @@ use hyper::{Body, Response};
 
 use garage_table::*;
 use garage_util::data::*;
-use garage_util::error::Error;
 
 use garage_model::block_ref_table::*;
 use garage_model::garage::Garage;
 use garage_model::object_table::*;
 use garage_model::version_table::*;
 
+use crate::error::*;
+
 pub async fn handle_copy(
 	garage: Arc<Garage>,
 	dest_bucket: &str,
@@ -20,25 +21,20 @@ pub async fn handle_copy(
 	source_bucket: &str,
 	source_key: &str,
 ) -> Result<Response<Body>, Error> {
-	let source_object = match garage
+	let source_object = garage
 		.object_table
 		.get(&source_bucket.to_string(), &source_key.to_string())
 		.await?
-	{
-		None => return Err(Error::NotFound),
-		Some(o) => o,
-	};
+		.ok_or(Error::NotFound)?;
 
-	let source_last_v = match source_object
+	let source_last_v = source_object
 		.versions()
 		.iter()
 		.rev()
 		.filter(|v| v.is_complete())
 		.next()
-	{
-		Some(v) => v,
-		None => return Err(Error::NotFound),
-	};
+		.ok_or(Error::NotFound)?;
+
 	let source_last_state = match &source_last_v.state {
 		ObjectVersionState::Complete(x) => x,
 		_ => unreachable!(),
@@ -68,10 +64,7 @@ pub async fn handle_copy(
 				.version_table
 				.get(&source_last_v.uuid, &EmptyKey)
 				.await?;
-			let source_version = match source_version {
-				Some(v) => v,
-				None => return Err(Error::NotFound),
-			};
+			let source_version = source_version.ok_or(Error::NotFound)?;
 
 			let dest_version = Version::new(
 				new_uuid,
diff --git a/src/api/s3_delete.rs b/src/api/s3_delete.rs
index 42216f51..f46bfcfe 100644
--- a/src/api/s3_delete.rs
+++ b/src/api/s3_delete.rs
@@ -4,29 +4,23 @@ use std::sync::Arc;
 use hyper::{Body, Request, Response};
 
 use garage_util::data::*;
-use garage_util::error::Error;
 
 use garage_model::garage::Garage;
 use garage_model::object_table::*;
 
 use crate::encoding::*;
+use crate::error::*;
 
 async fn handle_delete_internal(
 	garage: &Garage,
 	bucket: &str,
 	key: &str,
 ) -> Result<(UUID, UUID), Error> {
-	let object = match garage
+	let object = garage
 		.object_table
 		.get(&bucket.to_string(), &key.to_string())
 		.await?
-	{
-		None => {
-			// No need to delete
-			return Err(Error::NotFound);
-		}
-		Some(o) => o,
-	};
+		.ok_or(Error::NotFound)?; // No need to delete
 
 	let interesting_versions = object.versions().iter().filter(|v| match v.state {
 		ObjectVersionState::Aborted => false,
@@ -43,10 +37,7 @@ async fn handle_delete_internal(
 		timestamp = std::cmp::max(timestamp, v.timestamp + 1);
 	}
 
-	let deleted_version = match must_delete {
-		None => return Err(Error::NotFound),
-		Some(v) => v,
-	};
+	let deleted_version = must_delete.ok_or(Error::NotFound)?;
 
 	let version_uuid = gen_uuid();
 
@@ -85,8 +76,7 @@ pub async fn handle_delete_objects(
 ) -> Result<Response<Body>, Error> {
 	let body = hyper::body::to_bytes(req.into_body()).await?;
 	let cmd_xml = roxmltree::Document::parse(&std::str::from_utf8(&body)?)?;
-	let cmd = parse_delete_objects_xml(&cmd_xml)
-		.map_err(|e| Error::BadRequest(format!("Invald delete XML query: {}", e)))?;
+	let cmd = parse_delete_objects_xml(&cmd_xml).ok_or_bad_request("Invalid delete XML query")?;
 
 	let mut retxml = String::new();
 	writeln!(&mut retxml, r#"<?xml version="1.0" encoding="UTF-8"?>"#).unwrap();
@@ -143,10 +133,8 @@ fn parse_delete_objects_xml(xml: &roxmltree::Document) -> Result<DeleteRequest,
 	let mut ret = DeleteRequest { objects: vec![] };
 
 	let root = xml.root();
-	let delete = match root.first_child() {
-		Some(del) => del,
-		None => return Err(format!("Delete tag not found")),
-	};
+	let delete = root.first_child().ok_or(format!("Delete tag not found"))?;
+
 	if !delete.has_tag_name("Delete") {
 		return Err(format!("Invalid root tag: {:?}", root));
 	}
diff --git a/src/api/s3_get.rs b/src/api/s3_get.rs
index 68558dbe..a68c485b 100644
--- a/src/api/s3_get.rs
+++ b/src/api/s3_get.rs
@@ -5,13 +5,13 @@ use futures::stream::*;
 use hyper::body::Bytes;
 use hyper::{Body, Request, Response, StatusCode};
 
-use garage_util::error::Error;
-
 use garage_table::EmptyKey;
 
 use garage_model::garage::Garage;
 use garage_model::object_table::*;
 
+use crate::error::*;
+
 fn object_headers(
 	version: &ObjectVersion,
 	version_meta: &ObjectVersionMeta,
@@ -41,25 +41,20 @@ pub async fn handle_head(
 	bucket: &str,
 	key: &str,
 ) -> Result<Response<Body>, Error> {
-	let object = match garage
+	let object = garage
 		.object_table
 		.get(&bucket.to_string(), &key.to_string())
 		.await?
-	{
-		None => return Err(Error::NotFound),
-		Some(o) => o,
-	};
+		.ok_or(Error::NotFound)?;
 
-	let version = match object
+	let version = object
 		.versions()
 		.iter()
 		.rev()
 		.filter(|v| v.is_data())
 		.next()
-	{
-		Some(v) => v,
-		None => return Err(Error::NotFound),
-	};
+		.ok_or(Error::NotFound)?;
+
 	let version_meta = match &version.state {
 		ObjectVersionState::Complete(ObjectVersionData::Inline(meta, _)) => meta,
 		ObjectVersionState::Complete(ObjectVersionData::FirstBlock(meta, _)) => meta,
@@ -80,25 +75,20 @@ pub async fn handle_get(
 	bucket: &str,
 	key: &str,
 ) -> Result<Response<Body>, Error> {
-	let object = match garage
+	let object = garage
 		.object_table
 		.get(&bucket.to_string(), &key.to_string())
 		.await?
-	{
-		None => return Err(Error::NotFound),
-		Some(o) => o,
-	};
+		.ok_or(Error::NotFound)?;
 
-	let last_v = match object
+	let last_v = object
 		.versions()
 		.iter()
 		.rev()
 		.filter(|v| v.is_complete())
 		.next()
-	{
-		Some(v) => v,
-		None => return Err(Error::NotFound),
-	};
+		.ok_or(Error::NotFound)?;
+
 	let last_v_data = match &last_v.state {
 		ObjectVersionState::Complete(x) => x,
 		_ => unreachable!(),
@@ -111,11 +101,8 @@ pub async fn handle_get(
 
 	let range = match req.headers().get("range") {
 		Some(range) => {
-			let range_str = range
-				.to_str()
-				.map_err(|e| Error::BadRequest(format!("Invalid range header: {}", e)))?;
-			let mut ranges = http_range::HttpRange::parse(range_str, last_v_meta.size)
-				.map_err(|_e| Error::BadRequest(format!("Invalid range")))?;
+			let range_str = range.to_str()?;
+			let mut ranges = http_range::HttpRange::parse(range_str, last_v_meta.size)?;
 			if ranges.len() > 1 {
 				return Err(Error::BadRequest(format!("Multiple ranges not supported")));
 			} else {
@@ -149,10 +136,7 @@ pub async fn handle_get(
 			let get_next_blocks = garage.version_table.get(&last_v.uuid, &EmptyKey);
 
 			let (first_block, version) = futures::try_join!(read_first_block, get_next_blocks)?;
-			let version = match version {
-				Some(v) => v,
-				None => return Err(Error::NotFound),
-			};
+			let version = version.ok_or(Error::NotFound)?;
 
 			let mut blocks = version
 				.blocks()
@@ -210,7 +194,9 @@ pub async fn handle_get_range(
 				let body: Body = Body::from(bytes[begin as usize..end as usize].to_vec());
 				Ok(resp_builder.body(body)?)
 			} else {
-				Err(Error::Message(format!("Internal error: requested range not present in inline bytes when it should have been")))
+				None.ok_or_internal_error(
+					"Requested range not present in inline bytes when it should have been",
+				)
 			}
 		}
 		ObjectVersionData::FirstBlock(_meta, _first_block_hash) => {
diff --git a/src/api/s3_list.rs b/src/api/s3_list.rs
index 0a3b62ec..f2b49a1d 100644
--- a/src/api/s3_list.rs
+++ b/src/api/s3_list.rs
@@ -64,10 +64,9 @@ pub async fn handle_list(
 				}
 				let common_prefix = if delimiter.len() > 0 {
 					let relative_key = &object.key[prefix.len()..];
-					match relative_key.find(delimiter) {
-						Some(i) => Some(&object.key[..prefix.len() + i + delimiter.len()]),
-						None => None,
-					}
+					relative_key
+						.find(delimiter)
+						.map(|i| &object.key[..prefix.len() + i + delimiter.len()])
 				} else {
 					None
 				};
diff --git a/src/api/s3_put.rs b/src/api/s3_put.rs
index 0926ba89..72613323 100644
--- a/src/api/s3_put.rs
+++ b/src/api/s3_put.rs
@@ -9,8 +9,9 @@ use sha2::{Digest as Sha256Digest, Sha256};
 
 use garage_table::*;
 use garage_util::data::*;
-use garage_util::error::Error;
+use garage_util::error::Error as GarageError;
 
+use crate::error::*;
 use garage_model::block::INLINE_THRESHOLD;
 use garage_model::block_ref_table::*;
 use garage_model::garage::Garage;
@@ -36,10 +37,7 @@ pub async fn handle_put(
 	let body = req.into_body();
 
 	let mut chunker = BodyChunker::new(body, garage.config.block_size);
-	let first_block = match chunker.next().await? {
-		Some(x) => x,
-		None => vec![],
-	};
+	let first_block = chunker.next().await?.unwrap_or(vec![]);
 
 	let mut object_version = ObjectVersion {
 		uuid: version_uuid,
@@ -85,7 +83,7 @@ pub async fn handle_put(
 	// Validate MD5 sum against content-md5 header and sha256sum against signed content-sha256
 	if let Some(expected_sha256) = content_sha256 {
 		if expected_sha256 != sha256sum {
-			return Err(Error::Message(format!(
+			return Err(Error::BadRequest(format!(
 				"Unable to validate x-amz-content-sha256"
 			)));
 		} else {
@@ -94,7 +92,7 @@ pub async fn handle_put(
 	}
 	if let Some(expected_md5) = content_md5 {
 		if expected_md5.trim_matches('"') != md5sum {
-			return Err(Error::Message(format!("Unable to validate content-md5")));
+			return Err(Error::BadRequest(format!("Unable to validate content-md5")));
 		} else {
 			trace!("Successfully validated content-md5");
 		}
@@ -184,7 +182,7 @@ async fn put_block_meta(
 	offset: u64,
 	hash: Hash,
 	size: u64,
-) -> Result<(), Error> {
+) -> Result<(), GarageError> {
 	// TODO: don't clone, restart from empty block list ??
 	let mut version = version.clone();
 	version
@@ -225,7 +223,7 @@ impl BodyChunker {
 			buf: VecDeque::new(),
 		}
 	}
-	async fn next(&mut self) -> Result<Option<Vec<u8>>, Error> {
+	async fn next(&mut self) -> Result<Option<Vec<u8>>, GarageError> {
 		while !self.read_all && self.buf.len() < self.block_size {
 			if let Some(block) = self.body.next().await {
 				let bytes = block?;
@@ -305,10 +303,9 @@ pub async fn handle_put_part(
 	// Check parameters
 	let part_number = part_number_str
 		.parse::<u64>()
-		.map_err(|e| Error::BadRequest(format!("Invalid part number: {}", e)))?;
+		.ok_or_bad_request("Invalid part number")?;
 
-	let version_uuid =
-		uuid_from_str(upload_id).map_err(|_| Error::BadRequest(format!("Invalid upload ID")))?;
+	let version_uuid = decode_upload_id(upload_id)?;
 
 	let content_md5 = match req.headers().get("content-md5") {
 		Some(x) => Some(x.to_str()?.to_string()),
@@ -325,14 +322,9 @@ pub async fn handle_put_part(
 	let (object, first_block) = futures::try_join!(get_object_fut, get_first_block_fut)?;
 
 	// Check object is valid and multipart block can be accepted
-	let first_block = match first_block {
-		None => return Err(Error::BadRequest(format!("Empty body"))),
-		Some(x) => x,
-	};
-	let object = match object {
-		None => return Err(Error::BadRequest(format!("Object not found"))),
-		Some(x) => x,
-	};
+	let first_block = first_block.ok_or(Error::BadRequest(format!("Empty body")))?;	
+	let object = object.ok_or(Error::BadRequest(format!("Object not found")))?;
+
 	if !object
 		.versions()
 		.iter()
@@ -359,7 +351,7 @@ pub async fn handle_put_part(
 	// Validate MD5 sum against content-md5 header and sha256sum against signed content-sha256
 	if let Some(expected_sha256) = content_sha256 {
 		if expected_sha256 != sha256sum {
-			return Err(Error::Message(format!(
+			return Err(Error::BadRequest(format!(
 				"Unable to validate x-amz-content-sha256"
 			)));
 		} else {
@@ -368,7 +360,7 @@ pub async fn handle_put_part(
 	}
 	if let Some(expected_md5) = content_md5 {
 		if expected_md5.trim_matches('"') != md5sum {
-			return Err(Error::Message(format!("Unable to validate content-md5")));
+			return Err(Error::BadRequest(format!("Unable to validate content-md5")));
 		} else {
 			trace!("Successfully validated content-md5");
 		}
@@ -384,8 +376,7 @@ pub async fn handle_complete_multipart_upload(
 	key: &str,
 	upload_id: &str,
 ) -> Result<Response<Body>, Error> {
-	let version_uuid =
-		uuid_from_str(upload_id).map_err(|_| Error::BadRequest(format!("Invalid upload ID")))?;
+	let version_uuid = decode_upload_id(upload_id)?;
 
 	let bucket = bucket.to_string();
 	let key = key.to_string();
@@ -393,10 +384,8 @@ pub async fn handle_complete_multipart_upload(
 		garage.object_table.get(&bucket, &key),
 		garage.version_table.get(&version_uuid, &EmptyKey),
 	)?;
-	let object = match object {
-		None => return Err(Error::BadRequest(format!("Object not found"))),
-		Some(x) => x,
-	};
+	let object = object.ok_or(Error::BadRequest(format!("Object not found")))?;
+
 	let object_version = object
 		.versions()
 		.iter()
@@ -409,10 +398,8 @@ pub async fn handle_complete_multipart_upload(
 		}
 		Some(x) => x.clone(),
 	};
-	let version = match version {
-		None => return Err(Error::BadRequest(format!("Version not found"))),
-		Some(x) => x,
-	};
+	let version = version.ok_or(Error::BadRequest(format!("Version not found")))?;
+
 	if version.blocks().len() == 0 {
 		return Err(Error::BadRequest(format!("No data was uploaded")));
 	}
@@ -469,17 +456,14 @@ pub async fn handle_abort_multipart_upload(
 	key: &str,
 	upload_id: &str,
 ) -> Result<Response<Body>, Error> {
-	let version_uuid =
-		uuid_from_str(upload_id).map_err(|_| Error::BadRequest(format!("Invalid upload ID")))?;
+	let version_uuid = decode_upload_id(upload_id)?;
 
 	let object = garage
 		.object_table
 		.get(&bucket.to_string(), &key.to_string())
 		.await?;
-	let object = match object {
-		None => return Err(Error::BadRequest(format!("Object not found"))),
-		Some(x) => x,
-	};
+	let object = object.ok_or(Error::BadRequest(format!("Object not found")))?;
+
 	let object_version = object
 		.versions()
 		.iter()
@@ -532,10 +516,10 @@ fn get_headers(req: &Request<Body>) -> Result<ObjectVersionHeaders, Error> {
 	})
 }
 
-fn uuid_from_str(id: &str) -> Result<UUID, ()> {
-	let id_bin = hex::decode(id).map_err(|_| ())?;
+fn decode_upload_id(id: &str) -> Result<UUID, Error> {
+	let id_bin = hex::decode(id).ok_or_bad_request("Invalid upload ID")?;
 	if id_bin.len() != 32 {
-		return Err(());
+		return None.ok_or_bad_request("Invalid upload ID");
 	}
 	let mut uuid = [0u8; 32];
 	uuid.copy_from_slice(&id_bin[..]);
diff --git a/src/api/signature.rs b/src/api/signature.rs
index 6e23afda..402b1881 100644
--- a/src/api/signature.rs
+++ b/src/api/signature.rs
@@ -7,12 +7,12 @@ use sha2::{Digest, Sha256};
 
 use garage_table::*;
 use garage_util::data::Hash;
-use garage_util::error::Error;
 
 use garage_model::garage::Garage;
 use garage_model::key_table::*;
 
 use crate::encoding::uri_encode;
+use crate::error::*;
 
 const SHORT_DATE: &str = "%Y%m%d";
 const LONG_DATETIME: &str = "%Y%m%dT%H%M%SZ";
@@ -42,9 +42,9 @@ pub async fn check_signature(
 
 	let date = headers
 		.get("x-amz-date")
-		.ok_or(Error::BadRequest("Missing X-Amz-Date field".into()))?;
+		.ok_or_bad_request("Missing X-Amz-Date field")?;
 	let date: NaiveDateTime = NaiveDateTime::parse_from_str(date, LONG_DATETIME)
-		.map_err(|e| Error::BadRequest(format!("Invalid date: {}", e)))?
+		.ok_or_bad_request("Invalid date")?
 		.into();
 	let date: DateTime<Utc> = DateTime::from_utc(date, Utc);
 
@@ -90,7 +90,7 @@ pub async fn check_signature(
 		&garage.config.s3_api.s3_region,
 		"s3",
 	)
-	.map_err(|e| Error::Message(format!("Unable to build signing HMAC: {}", e)))?;
+	.ok_or_internal_error("Unable to build signing HMAC")?;
 	hmac.input(string_to_sign.as_bytes());
 	let signature = hex::encode(hmac.result().code());
 
@@ -104,9 +104,8 @@ pub async fn check_signature(
 	let content_sha256 = if authorization.content_sha256 == "UNSIGNED-PAYLOAD" {
 		None
 	} else {
-		let bytes = hex::decode(authorization.content_sha256).or(Err(Error::BadRequest(
-			format!("Invalid content sha256 hash"),
-		)))?;
+		let bytes = hex::decode(authorization.content_sha256)
+			.ok_or_bad_request("Invalid content sha256 hash")?;
 		let mut hash = [0u8; 32];
 		if bytes.len() != 32 {
 			return Err(Error::BadRequest(format!("Invalid content sha256 hash")));
@@ -132,7 +131,7 @@ fn parse_authorization(
 ) -> Result<Authorization, Error> {
 	let first_space = authorization
 		.find(' ')
-		.ok_or(Error::BadRequest("Authorization field too short".into()))?;
+		.ok_or_bad_request("Authorization field to short")?;
 	let (auth_kind, rest) = authorization.split_at(first_space);
 
 	if auth_kind != "AWS4-HMAC-SHA256" {
@@ -142,41 +141,32 @@ fn parse_authorization(
 	let mut auth_params = HashMap::new();
 	for auth_part in rest.split(',') {
 		let auth_part = auth_part.trim();
-		let eq = auth_part.find('=').ok_or(Error::BadRequest(format!(
-			"Missing =value in authorization field {}",
-			auth_part
-		)))?;
+		let eq = auth_part
+			.find('=')
+			.ok_or_bad_request("Field without value in authorization header")?;
 		let (key, value) = auth_part.split_at(eq);
 		auth_params.insert(key.to_string(), value.trim_start_matches('=').to_string());
 	}
 
 	let cred = auth_params
 		.get("Credential")
-		.ok_or(Error::BadRequest(format!(
-			"Could not find Credential in Authorization field"
-		)))?;
+		.ok_or_bad_request("Could not find Credential in Authorization field")?;
 	let (key_id, scope) = parse_credential(cred)?;
 
 	let content_sha256 = headers
 		.get("x-amz-content-sha256")
-		.ok_or(Error::BadRequest(
-			"Missing X-Amz-Content-Sha256 field".into(),
-		))?;
+		.ok_or_bad_request("Missing X-Amz-Content-Sha256 field")?;
 
 	let auth = Authorization {
 		key_id,
 		scope,
 		signed_headers: auth_params
 			.get("SignedHeaders")
-			.ok_or(Error::BadRequest(format!(
-				"Could not find SignedHeaders in Authorization field"
-			)))?
+			.ok_or_bad_request("Could not find SignedHeaders in Authorization field")?
 			.to_string(),
 		signature: auth_params
 			.get("Signature")
-			.ok_or(Error::BadRequest(format!(
-				"Could not find Signature in Authorization field"
-			)))?
+			.ok_or_bad_request("Could not find Signature in Authorization field")?
 			.to_string(),
 		content_sha256: content_sha256.to_string(),
 	};
@@ -186,9 +176,7 @@ fn parse_authorization(
 fn parse_query_authorization(headers: &HashMap<String, String>) -> Result<Authorization, Error> {
 	let algo = headers
 		.get("x-amz-algorithm")
-		.ok_or(Error::BadRequest(format!(
-			"X-Amz-Algorithm not found in query parameters"
-		)))?;
+		.ok_or_bad_request("X-Amz-Algorithm not found in query parameters")?;
 	if algo != "AWS4-HMAC-SHA256" {
 		return Err(Error::BadRequest(format!(
 			"Unsupported authorization method"
@@ -197,20 +185,14 @@ fn parse_query_authorization(headers: &HashMap<String, String>) -> Result<Author
 
 	let cred = headers
 		.get("x-amz-credential")
-		.ok_or(Error::BadRequest(format!(
-			"X-Amz-Credential not found in query parameters"
-		)))?;
+		.ok_or_bad_request("X-Amz-Credential not found in query parameters")?;
 	let (key_id, scope) = parse_credential(cred)?;
 	let signed_headers = headers
 		.get("x-amz-signedheaders")
-		.ok_or(Error::BadRequest(format!(
-			"X-Amz-SignedHeaders not found in query parameters"
-		)))?;
+		.ok_or_bad_request("X-Amz-SignedHeaders not found in query parameters")?;
 	let signature = headers
 		.get("x-amz-signature")
-		.ok_or(Error::BadRequest(format!(
-			"X-Amz-Signature not found in query parameters"
-		)))?;
+		.ok_or_bad_request("X-Amz-Signature not found in query parameters")?;
 	let content_sha256 = headers
 		.get("x-amz-content-sha256")
 		.map(|x| x.as_str())
@@ -226,9 +208,9 @@ fn parse_query_authorization(headers: &HashMap<String, String>) -> Result<Author
 }
 
 fn parse_credential(cred: &str) -> Result<(String, String), Error> {
-	let first_slash = cred.find('/').ok_or(Error::BadRequest(format!(
-		"Credentials does not contain / in authorization field"
-	)))?;
+	let first_slash = cred
+		.find('/')
+		.ok_or_bad_request("Credentials does not contain / in authorization field")?;
 	let (key_id, scope) = cred.split_at(first_slash);
 	Ok((
 		key_id.to_string(),
author	Quentin <quentin@deuxfleurs.fr>	2020-11-19 14:39:30 +0100
committer	Quentin <quentin@deuxfleurs.fr>	2020-11-19 14:39:30 +0100
commit	fc427b0b66241785ecd3fe23ec3e4ac72aaed1da (patch)
tree	ea406de04a7a11c09c6d758ca97ba53fc2bdfbe4 /src/api
parent	6076d869b14aa38059d54a2dece222ad7b9da3bc (diff)
parent	044d7988779aadac9290b58ceb077c1211670aed (diff)
download	garage-fc427b0b66241785ecd3fe23ec3e4ac72aaed1da.tar.gz garage-fc427b0b66241785ecd3fe23ec3e4ac72aaed1da.zip