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More error refactoring

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This commit is contained in:
Alex 2022-05-13 19:18:51 +02:00
parent ec16d166f9
commit ea325d78d3
Signed by untrusted user: lx
GPG key ID: 0E496D15096376BE
22 changed files with 209 additions and 259 deletions
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8
src/api/admin/api_server.rs
View file

@ -114,13 +114,9 @@ impl ApiHandler for AdminApiServer {
if let Some(h) = expected_auth_header {
match req.headers().get("Authorization") {
None => Err(Error::Forbidden(
"Authorization token must be provided".into(),
)),
None => Err(Error::forbidden("Authorization token must be provided")),
Some(v) if v.to_str().map(|hv| hv == h).unwrap_or(false) => Ok(()),
_ => Err(Error::Forbidden(
"Invalid authorization token provided".into(),
)),
_ => Err(Error::forbidden("Invalid authorization token provided")),
}?;
}

5
src/api/admin/bucket.rs
View file

@ -18,6 +18,7 @@ use garage_model::s3::object_table::ObjectFilter;
use crate::admin::error::*;
use crate::admin::key::ApiBucketKeyPerm;
use crate::common_error::CommonError;
use crate::helpers::parse_json_body;
pub async fn handle_list_buckets(garage: &Arc<Garage>) -> Result<Response<Body>, Error> {
@ -233,7 +234,7 @@ pub async fn handle_create_bucket(
if let Some(alias) = garage.bucket_alias_table.get(&EmptyKey, ga).await? {
if alias.state.get().is_some() {
return Err(Error::BucketAlreadyExists);
return Err(CommonError::BucketAlreadyExists.into());
}
}
}
@ -333,7 +334,7 @@ pub async fn handle_delete_bucket(
)
.await?;
if !objects.is_empty() {
return Err(Error::BucketNotEmpty);
return Err(CommonError::BucketNotEmpty.into());
}
// --- done checking, now commit ---

43
src/api/admin/error.rs
View file

@ -4,9 +4,9 @@ use hyper::{Body, HeaderMap, StatusCode};
use garage_model::helper::error::Error as HelperError;
use crate::generic_server::ApiError;
use crate::common_error::CommonError;
pub use crate::common_error::{OkOrBadRequest, OkOrInternalError};
pub use crate::common_error::{CommonErrorDerivative, OkOrBadRequest, OkOrInternalError};
use crate::generic_server::ApiError;
/// Errors of this crate
#[derive(Debug, Error)]
@ -16,30 +16,9 @@ pub enum Error {
CommonError(CommonError),
// Category: cannot process
/// No proper api key was used, or the signature was invalid
#[error(display = "Forbidden: {}", _0)]
Forbidden(String),
/// The API access key does not exist
#[error(display = "Access key not found")]
NoSuchAccessKey,
/// The bucket requested don't exists
#[error(display = "Bucket not found")]
NoSuchBucket,
/// Tried to create a bucket that already exist
#[error(display = "Bucket already exists")]
BucketAlreadyExists,
/// Tried to delete a non-empty bucket
#[error(display = "Tried to delete a non-empty bucket")]
BucketNotEmpty,
// Category: bad request
/// Bucket name is not valid according to AWS S3 specs
#[error(display = "Invalid bucket name")]
InvalidBucketName,
}
impl<T> From<T> for Error
@ -51,14 +30,16 @@ where
}
}
impl CommonErrorDerivative for Error {}
impl From<HelperError> for Error {
fn from(err: HelperError) -> Self {
match err {
HelperError::Internal(i) => Self::CommonError(CommonError::InternalError(i)),
HelperError::BadRequest(b) => Self::CommonError(CommonError::BadRequest(b)),
HelperError::InvalidBucketName(_) => Self::InvalidBucketName,
HelperError::InvalidBucketName(_) => Self::CommonError(CommonError::InvalidBucketName),
HelperError::NoSuchBucket(_) => Self::CommonError(CommonError::NoSuchBucket),
HelperError::NoSuchAccessKey(_) => Self::NoSuchAccessKey,
HelperError::NoSuchBucket(_) => Self::NoSuchBucket,
}
}
}
@ -68,10 +49,7 @@ impl ApiError for Error {
fn http_status_code(&self) -> StatusCode {
match self {
Error::CommonError(c) => c.http_status_code(),
Error::NoSuchAccessKey | Error::NoSuchBucket => StatusCode::NOT_FOUND,
Error::BucketNotEmpty | Error::BucketAlreadyExists => StatusCode::CONFLICT,
Error::Forbidden(_) => StatusCode::FORBIDDEN,
Error::InvalidBucketName => StatusCode::BAD_REQUEST,
Error::NoSuchAccessKey => StatusCode::NOT_FOUND,
}
}
@ -80,15 +58,10 @@ impl ApiError for Error {
}
fn http_body(&self, garage_region: &str, path: &str) -> Body {
// TODO nice json error
Body::from(format!(
"ERROR: {}\n\ngarage region: {}\npath: {}",
self, garage_region, path
))
}
}
impl Error {
pub fn bad_request<M: ToString>(msg: M) -> Self {
Self::CommonError(CommonError::BadRequest(msg.to_string()))
}
}

67
src/api/common_error.rs
View file

@ -6,7 +6,7 @@ use garage_util::error::Error as GarageError;
/// Errors of this crate
#[derive(Debug, Error)]
pub enum CommonError {
// Category: internal error
// ---- INTERNAL ERRORS ----
/// Error related to deeper parts of Garage
#[error(display = "Internal error: {}", _0)]
InternalError(#[error(source)] GarageError),
@ -19,9 +19,34 @@ pub enum CommonError {
#[error(display = "Internal error (HTTP error): {}", _0)]
Http(#[error(source)] http::Error),
/// The client sent an invalid request
// ---- GENERIC CLIENT ERRORS ----
/// Proper authentication was not provided
#[error(display = "Forbidden: {}", _0)]
Forbidden(String),
/// Generic bad request response with custom message
#[error(display = "Bad request: {}", _0)]
BadRequest(String),
// ---- SPECIFIC ERROR CONDITIONS ----
// These have to be error codes referenced in the S3 spec here:
// https://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html#ErrorCodeList
/// The bucket requested don't exists
#[error(display = "Bucket not found")]
NoSuchBucket,
/// Tried to create a bucket that already exist
#[error(display = "Bucket already exists")]
BucketAlreadyExists,
/// Tried to delete a non-empty bucket
#[error(display = "Tried to delete a non-empty bucket")]
BucketNotEmpty,
// Category: bad request
/// Bucket name is not valid according to AWS S3 specs
#[error(display = "Invalid bucket name")]
InvalidBucketName,
}
impl CommonError {
@ -36,15 +61,53 @@ impl CommonError {
StatusCode::INTERNAL_SERVER_ERROR
}
CommonError::BadRequest(_) => StatusCode::BAD_REQUEST,
CommonError::Forbidden(_) => StatusCode::FORBIDDEN,
CommonError::NoSuchBucket => StatusCode::NOT_FOUND,
CommonError::BucketNotEmpty | CommonError::BucketAlreadyExists => StatusCode::CONFLICT,
CommonError::InvalidBucketName => StatusCode::BAD_REQUEST,
}
}
pub fn aws_code(&self) -> &'static str {
match self {
CommonError::Forbidden(_) => "AccessDenied",
CommonError::InternalError(
GarageError::Timeout
| GarageError::RemoteError(_)
| GarageError::Quorum(_, _, _, _),
) => "ServiceUnavailable",
CommonError::InternalError(_) | CommonError::Hyper(_) | CommonError::Http(_) => {
"InternalError"
}
CommonError::BadRequest(_) => "InvalidRequest",
CommonError::NoSuchBucket => "NoSuchBucket",
CommonError::BucketAlreadyExists => "BucketAlreadyExists",
CommonError::BucketNotEmpty => "BucketNotEmpty",
CommonError::InvalidBucketName => "InvalidBucketName",
}
}
pub fn bad_request<M: ToString>(msg: M) -> Self {
CommonError::BadRequest(msg.to_string())
}
}
pub trait CommonErrorDerivative: From<CommonError> {
fn internal_error<M: ToString>(msg: M) -> Self {
Self::from(CommonError::InternalError(GarageError::Message(
msg.to_string(),
)))
}
fn bad_request<M: ToString>(msg: M) -> Self {
Self::from(CommonError::BadRequest(msg.to_string()))
}
fn forbidden<M: ToString>(msg: M) -> Self {
Self::from(CommonError::Forbidden(msg.to_string()))
}
}
/// Trait to map error to the Bad Request error code
pub trait OkOrBadRequest {
type S;

2
src/api/helpers.rs
View file

@ -2,7 +2,7 @@ use hyper::{Body, Request};
use idna::domain_to_unicode;
use serde::Deserialize;
use crate::common_error::{*, CommonError as Error};
use crate::common_error::{CommonError as Error, *};
/// What kind of authorization is required to perform a given action
#[derive(Debug, Clone, PartialEq, Eq)]

28
src/api/k2v/api_server.rs
View file

@ -7,13 +7,12 @@ use hyper::{Body, Method, Request, Response};
use opentelemetry::{trace::SpanRef, KeyValue};
use garage_table::util::*;
use garage_util::error::Error as GarageError;
use garage_model::garage::Garage;
use crate::k2v::error::*;
use crate::generic_server::*;
use crate::k2v::error::*;
use crate::signature::payload::check_payload_signature;
use crate::signature::streaming::*;
@ -84,14 +83,14 @@ impl ApiHandler for K2VApiServer {
// The OPTIONS method is procesed early, before we even check for an API key
if let Endpoint::Options = endpoint {
return Ok(handle_options_s3api(garage, &req, Some(bucket_name)).await
return Ok(handle_options_s3api(garage, &req, Some(bucket_name))
.await
.ok_or_bad_request("Error handling OPTIONS")?);
}
let (api_key, mut content_sha256) = check_payload_signature(&garage, "k2v", &req).await?;
let api_key = api_key.ok_or_else(|| {
Error::Forbidden("Garage does not support anonymous access yet".to_string())
})?;
let api_key = api_key
.ok_or_else(|| Error::forbidden("Garage does not support anonymous access yet"))?;
let req = parse_streaming_body(
&api_key,
@ -101,13 +100,14 @@ impl ApiHandler for K2VApiServer {
"k2v",
)?;
let bucket_id = garage.bucket_helper().resolve_bucket(&bucket_name, &api_key).await?;
let bucket_id = garage
.bucket_helper()
.resolve_bucket(&bucket_name, &api_key)
.await?;
let bucket = garage
.bucket_table
.get(&EmptyKey, &bucket_id)
.await?
.filter(|b| !b.state.is_deleted())
.ok_or(Error::NoSuchBucket)?;
.bucket_helper()
.get_existing_bucket(bucket_id)
.await?;
let allowed = match endpoint.authorization_type() {
Authorization::Read => api_key.allow_read(&bucket_id),
@ -117,9 +117,7 @@ impl ApiHandler for K2VApiServer {
};
if !allowed {
return Err(Error::Forbidden(
"Operation is not allowed for this key.".to_string(),
));
return Err(Error::forbidden("Operation is not allowed for this key."));
}
// Look up what CORS rule might apply to response.

2
src/api/k2v/batch.rs
View file

@ -12,8 +12,8 @@ use garage_model::garage::Garage;
use garage_model::k2v::causality::*;
use garage_model::k2v::item_table::*;
use crate::k2v::error::*;
use crate::helpers::*;
use crate::k2v::error::*;
use crate::k2v::range::read_range;
pub async fn handle_insert_batch(

40
src/api/k2v/error.rs
View file

@ -5,7 +5,7 @@ use hyper::{Body, HeaderMap, StatusCode};
use garage_model::helper::error::Error as HelperError;
use crate::common_error::CommonError;
pub use crate::common_error::{OkOrBadRequest, OkOrInternalError};
pub use crate::common_error::{CommonErrorDerivative, OkOrBadRequest, OkOrInternalError};
use crate::generic_server::ApiError;
use crate::signature::error::Error as SignatureError;
@ -17,10 +17,6 @@ pub enum Error {
CommonError(CommonError),
// Category: cannot process
/// No proper api key was used, or the signature was invalid
#[error(display = "Forbidden: {}", _0)]
Forbidden(String),
/// Authorization Header Malformed
#[error(display = "Authorization header malformed, expected scope: {}", _0)]
AuthorizationHeaderMalformed(String),
@ -29,10 +25,6 @@ pub enum Error {
#[error(display = "Key not found")]
NoSuchKey,
/// The bucket requested don't exists
#[error(display = "Bucket not found")]
NoSuchBucket,
/// Some base64 encoded data was badly encoded
#[error(display = "Invalid base64: {}", _0)]
InvalidBase64(#[error(source)] base64::DecodeError),
@ -59,11 +51,15 @@ where
}
}
impl CommonErrorDerivative for Error {}
impl From<HelperError> for Error {
fn from(err: HelperError) -> Self {
match err {
HelperError::Internal(i) => Self::CommonError(CommonError::InternalError(i)),
HelperError::BadRequest(b) => Self::CommonError(CommonError::BadRequest(b)),
HelperError::InvalidBucketName(_) => Self::CommonError(CommonError::InvalidBucketName),
HelperError::NoSuchBucket(_) => Self::CommonError(CommonError::NoSuchBucket),
e => Self::CommonError(CommonError::BadRequest(format!("{}", e))),
}
}
@ -73,35 +69,26 @@ impl From<SignatureError> for Error {
fn from(err: SignatureError) -> Self {
match err {
SignatureError::CommonError(c) => Self::CommonError(c),
SignatureError::AuthorizationHeaderMalformed(c) => Self::AuthorizationHeaderMalformed(c),
SignatureError::Forbidden(f) => Self::Forbidden(f),
SignatureError::AuthorizationHeaderMalformed(c) => {
Self::AuthorizationHeaderMalformed(c)
}
SignatureError::InvalidUtf8Str(i) => Self::InvalidUtf8Str(i),
SignatureError::InvalidHeader(h) => Self::InvalidHeader(h),
}
}
}
impl Error {
//pub fn internal_error<M: ToString>(msg: M) -> Self {
// Self::CommonError(CommonError::InternalError(GarageError::Message(
// msg.to_string(),
// )))
//}
pub fn bad_request<M: ToString>(msg: M) -> Self {
Self::CommonError(CommonError::BadRequest(msg.to_string()))
}
}
impl ApiError for Error {
/// Get the HTTP status code that best represents the meaning of the error for the client
fn http_status_code(&self) -> StatusCode {
match self {
Error::CommonError(c) => c.http_status_code(),
Error::NoSuchKey | Error::NoSuchBucket => StatusCode::NOT_FOUND,
Error::Forbidden(_) => StatusCode::FORBIDDEN,
Error::NoSuchKey => StatusCode::NOT_FOUND,
Error::NotAcceptable(_) => StatusCode::NOT_ACCEPTABLE,
_ => StatusCode::BAD_REQUEST,
Error::AuthorizationHeaderMalformed(_)
| Error::InvalidBase64(_)
| Error::InvalidHeader(_)
| Error::InvalidUtf8Str(_) => StatusCode::BAD_REQUEST,
}
}
@ -110,6 +97,7 @@ impl ApiError for Error {
}
fn http_body(&self, garage_region: &str, path: &str) -> Body {
// TODO nice json error
Body::from(format!(
"ERROR: {}\n\ngarage region: {}\npath: {}",
self, garage_region, path

2
src/api/k2v/range.rs
View file

@ -7,8 +7,8 @@ use std::sync::Arc;
use garage_table::replication::TableShardedReplication;
use garage_table::*;
use crate::k2v::error::*;
use crate::helpers::key_after_prefix;
use crate::k2v::error::*;
/// Read range in a Garage table.
/// Returns (entries, more?, nextStart)

28
src/api/s3/api_server.rs
View file

@ -8,14 +8,13 @@ use hyper::{Body, Method, Request, Response};
use opentelemetry::{trace::SpanRef, KeyValue};
use garage_table::util::*;
use garage_util::error::Error as GarageError;
use garage_model::garage::Garage;
use garage_model::key_table::Key;
use crate::s3::error::*;
use crate::generic_server::*;
use crate::s3::error::*;
use crate::signature::payload::check_payload_signature;
use crate::signature::streaming::*;
@ -119,14 +118,14 @@ impl ApiHandler for S3ApiServer {
return handle_post_object(garage, req, bucket_name.unwrap()).await;
}
if let Endpoint::Options = endpoint {
return handle_options_s3api(garage, &req, bucket_name).await
return handle_options_s3api(garage, &req, bucket_name)
.await
.map_err(Error::from);
}
let (api_key, mut content_sha256) = check_payload_signature(&garage, "s3", &req).await?;
let api_key = api_key.ok_or_else(|| {
Error::Forbidden("Garage does not support anonymous access yet".to_string())
})?;
let api_key = api_key
.ok_or_else(|| Error::forbidden("Garage does not support anonymous access yet"))?;
let req = parse_streaming_body(
&api_key,
@ -150,13 +149,14 @@ impl ApiHandler for S3ApiServer {
return handle_create_bucket(&garage, req, content_sha256, api_key, bucket_name).await;
}
let bucket_id = garage.bucket_helper().resolve_bucket(&bucket_name, &api_key).await?;
let bucket_id = garage
.bucket_helper()
.resolve_bucket(&bucket_name, &api_key)
.await?;
let bucket = garage
.bucket_table
.get(&EmptyKey, &bucket_id)
.await?
.filter(|b| !b.state.is_deleted())
.ok_or(Error::NoSuchBucket)?;
.bucket_helper()
.get_existing_bucket(bucket_id)
.await?;
let allowed = match endpoint.authorization_type() {
Authorization::Read => api_key.allow_read(&bucket_id),
@ -166,9 +166,7 @@ impl ApiHandler for S3ApiServer {
};
if !allowed {
return Err(Error::Forbidden(
"Operation is not allowed for this key.".to_string(),
));
return Err(Error::forbidden("Operation is not allowed for this key."));
}
// Look up what CORS rule might apply to response.

5
src/api/s3/bucket.rs
View file

@ -14,6 +14,7 @@ use garage_util::crdt::*;
use garage_util::data::*;
use garage_util::time::*;
use crate::common_error::CommonError;
use crate::s3::error::*;
use crate::s3::xml as s3_xml;
use crate::signature::verify_signed_content;
@ -158,7 +159,7 @@ pub async fn handle_create_bucket(
// otherwise return a forbidden error.
let kp = api_key.bucket_permissions(&bucket_id);
if !(kp.allow_write || kp.allow_owner) {
return Err(Error::BucketAlreadyExists);
return Err(CommonError::BucketAlreadyExists.into());
}
} else {
// Create the bucket!
@ -239,7 +240,7 @@ pub async fn handle_delete_bucket(
)
.await?;
if !objects.is_empty() {
return Err(Error::BucketNotEmpty);
return Err(CommonError::BucketNotEmpty.into());
}
// --- done checking, now commit ---

9
src/api/s3/copy.rs
View file

@ -18,8 +18,8 @@ use garage_model::s3::block_ref_table::*;
use garage_model::s3::object_table::*;
use garage_model::s3::version_table::*;
use crate::helpers::parse_bucket_key;
use crate::s3::error::*;
use crate::helpers::{parse_bucket_key};
use crate::s3::put::{decode_upload_id, get_headers};
use crate::s3::xml::{self as s3_xml, xmlns_tag};
@ -413,10 +413,13 @@ async fn get_copy_source(
let copy_source = percent_encoding::percent_decode_str(copy_source).decode_utf8()?;
let (source_bucket, source_key) = parse_bucket_key(&copy_source, None)?;
let source_bucket_id = garage.bucket_helper().resolve_bucket(&source_bucket.to_string(), api_key).await?;
let source_bucket_id = garage
.bucket_helper()
.resolve_bucket(&source_bucket.to_string(), api_key)
.await?;
if !api_key.allow_read(&source_bucket_id) {
return Err(Error::Forbidden(format!(
return Err(Error::forbidden(format!(
"Reading from bucket {} not allowed for this key",
source_bucket
)));

32
src/api/s3/cors.rs
View file

@ -15,7 +15,6 @@ use crate::signature::verify_signed_content;
use garage_model::bucket_table::{Bucket, CorsRule as GarageCorsRule};
use garage_model::garage::Garage;
use garage_table::*;
use garage_util::data::*;
pub async fn handle_get_cors(bucket: &Bucket) -> Result<Response<Body>, Error> {
@ -48,14 +47,11 @@ pub async fn handle_delete_cors(
bucket_id: Uuid,
) -> Result<Response<Body>, Error> {
let mut bucket = garage
.bucket_table
.get(&EmptyKey, &bucket_id)
.await?
.ok_or(Error::NoSuchBucket)?;
.bucket_helper()
.get_existing_bucket(bucket_id)
.await?;
let param = bucket
.params_mut()
.ok_or_internal_error("Bucket should not be deleted at this point")?;
let param = bucket.params_mut().unwrap();
param.cors_config.update(None);
garage.bucket_table.insert(&bucket).await?;
@ -78,14 +74,11 @@ pub async fn handle_put_cors(
}
let mut bucket = garage
.bucket_table
.get(&EmptyKey, &bucket_id)
.await?
.ok_or(Error::NoSuchBucket)?;
.bucket_helper()
.get_existing_bucket(bucket_id)
.await?;
let param = bucket
.params_mut()
.ok_or_internal_error("Bucket should not be deleted at this point")?;
let param = bucket.params_mut().unwrap();
let conf: CorsConfiguration = from_reader(&body as &[u8])?;
conf.validate()?;
@ -119,12 +112,7 @@ pub async fn handle_options_s3api(
let helper = garage.bucket_helper();
let bucket_id = helper.resolve_global_bucket_name(&bn).await?;
if let Some(id) = bucket_id {
let bucket = garage
.bucket_table
.get(&EmptyKey, &id)
.await?
.filter(|b| !b.state.is_deleted())
.ok_or(Error::NoSuchBucket)?;
let bucket = garage.bucket_helper().get_existing_bucket(id).await?;
handle_options_for_bucket(req, &bucket)
} else {
// If there is a bucket name in the request, but that name
@ -185,7 +173,7 @@ pub fn handle_options_for_bucket(
}
}
Err(Error::Forbidden("This CORS request is not allowed.".into()))
Err(Error::forbidden("This CORS request is not allowed."))
}
pub fn find_matching_cors_rule<'a>(

103
src/api/s3/error.rs
View file

@ -5,10 +5,9 @@ use hyper::header::HeaderValue;
use hyper::{Body, HeaderMap, StatusCode};
use garage_model::helper::error::Error as HelperError;
use garage_util::error::Error as GarageError;
use crate::common_error::CommonError;
pub use crate::common_error::{OkOrBadRequest, OkOrInternalError};
pub use crate::common_error::{CommonErrorDerivative, OkOrBadRequest, OkOrInternalError};
use crate::generic_server::ApiError;
use crate::s3::xml as s3_xml;
use crate::signature::error::Error as SignatureError;
@ -21,10 +20,6 @@ pub enum Error {
CommonError(CommonError),
// Category: cannot process
/// No proper api key was used, or the signature was invalid
#[error(display = "Forbidden: {}", _0)]
Forbidden(String),
/// Authorization Header Malformed
#[error(display = "Authorization header malformed, expected scope: {}", _0)]
AuthorizationHeaderMalformed(String),
@ -33,22 +28,10 @@ pub enum Error {
#[error(display = "Key not found")]
NoSuchKey,
/// The bucket requested don't exists
#[error(display = "Bucket not found")]
NoSuchBucket,
/// The multipart upload requested don't exists
#[error(display = "Upload not found")]
NoSuchUpload,
/// Tried to create a bucket that already exist
#[error(display = "Bucket already exists")]
BucketAlreadyExists,
/// Tried to delete a non-empty bucket
#[error(display = "Tried to delete a non-empty bucket")]
BucketNotEmpty,
/// Precondition failed (e.g. x-amz-copy-source-if-match)
#[error(display = "At least one of the preconditions you specified did not hold")]
PreconditionFailed,
@ -75,14 +58,6 @@ pub enum Error {
#[error(display = "Invalid UTF-8: {}", _0)]
InvalidUtf8String(#[error(source)] std::string::FromUtf8Error),
/// Some base64 encoded data was badly encoded
#[error(display = "Invalid base64: {}", _0)]
InvalidBase64(#[error(source)] base64::DecodeError),
/// Bucket name is not valid according to AWS S3 specs
#[error(display = "Invalid bucket name")]
InvalidBucketName,
/// The client sent invalid XML data
#[error(display = "Invalid XML: {}", _0)]
InvalidXml(String),
@ -95,10 +70,6 @@ pub enum Error {
#[error(display = "Invalid HTTP range: {:?}", _0)]
InvalidRange(#[error(from)] (http_range::HttpRangeParseError, u64)),
/// The client asked for an invalid return format (invalid Accept header)
#[error(display = "Not acceptable: {}", _0)]
NotAcceptable(String),
/// The client sent a request for an action not supported by garage
#[error(display = "Unimplemented action: {}", _0)]
NotImplemented(String),
@ -113,6 +84,20 @@ where
}
}
impl CommonErrorDerivative for Error {}
impl From<HelperError> for Error {
fn from(err: HelperError) -> Self {
match err {
HelperError::Internal(i) => Self::CommonError(CommonError::InternalError(i)),
HelperError::BadRequest(b) => Self::CommonError(CommonError::BadRequest(b)),
HelperError::InvalidBucketName(_) => Self::CommonError(CommonError::InvalidBucketName),
HelperError::NoSuchBucket(_) => Self::CommonError(CommonError::NoSuchBucket),
e => Self::bad_request(format!("{}", e)),
}
}
}
impl From<roxmltree::Error> for Error {
fn from(err: roxmltree::Error) -> Self {
Self::InvalidXml(format!("{}", err))
@ -125,22 +110,13 @@ impl From<quick_xml::de::DeError> for Error {
}
}
impl From<HelperError> for Error {
fn from(err: HelperError) -> Self {
match err {
HelperError::Internal(i) => Self::CommonError(CommonError::InternalError(i)),
HelperError::BadRequest(b) => Self::CommonError(CommonError::BadRequest(b)),
e => Self::CommonError(CommonError::BadRequest(format!("{}", e))),
}
}
}
impl From<SignatureError> for Error {
fn from(err: SignatureError) -> Self {
match err {
SignatureError::CommonError(c) => Self::CommonError(c),
SignatureError::AuthorizationHeaderMalformed(c) => Self::AuthorizationHeaderMalformed(c),
SignatureError::Forbidden(f) => Self::Forbidden(f),
SignatureError::AuthorizationHeaderMalformed(c) => {
Self::AuthorizationHeaderMalformed(c)
}
SignatureError::InvalidUtf8Str(i) => Self::InvalidUtf8Str(i),
SignatureError::InvalidHeader(h) => Self::InvalidHeader(h),
}
@ -156,39 +132,22 @@ impl From<multer::Error> for Error {
impl Error {
pub fn aws_code(&self) -> &'static str {
match self {
Error::CommonError(c) => c.aws_code(),
Error::NoSuchKey => "NoSuchKey",
Error::NoSuchBucket => "NoSuchBucket",
Error::NoSuchUpload => "NoSuchUpload",
Error::BucketAlreadyExists => "BucketAlreadyExists",
Error::BucketNotEmpty => "BucketNotEmpty",
Error::PreconditionFailed => "PreconditionFailed",
Error::InvalidPart => "InvalidPart",
Error::InvalidPartOrder => "InvalidPartOrder",
Error::EntityTooSmall => "EntityTooSmall",
Error::Forbidden(_) => "AccessDenied",
Error::AuthorizationHeaderMalformed(_) => "AuthorizationHeaderMalformed",
Error::NotImplemented(_) => "NotImplemented",
Error::CommonError(CommonError::InternalError(
GarageError::Timeout
| GarageError::RemoteError(_)
| GarageError::Quorum(_, _, _, _),
)) => "ServiceUnavailable",
Error::CommonError(
CommonError::InternalError(_) | CommonError::Hyper(_) | CommonError::Http(_),
) => "InternalError",
_ => "InvalidRequest",
Error::InvalidXml(_) => "MalformedXML",
Error::InvalidRange(_) => "InvalidRange",
Error::InvalidUtf8Str(_) | Error::InvalidUtf8String(_) | Error::InvalidHeader(_) => {
"InvalidRequest"
}
}
}
pub fn internal_error<M: ToString>(msg: M) -> Self {
Self::CommonError(CommonError::InternalError(GarageError::Message(
msg.to_string(),
)))
}
pub fn bad_request<M: ToString>(msg: M) -> Self {
Self::CommonError(CommonError::BadRequest(msg.to_string()))
}
}
impl ApiError for Error {
@ -196,14 +155,18 @@ impl ApiError for Error {
fn http_status_code(&self) -> StatusCode {
match self {
Error::CommonError(c) => c.http_status_code(),
Error::NoSuchKey | Error::NoSuchBucket | Error::NoSuchUpload => StatusCode::NOT_FOUND,
Error::BucketNotEmpty | Error::BucketAlreadyExists => StatusCode::CONFLICT,
Error::NoSuchKey | Error::NoSuchUpload => StatusCode::NOT_FOUND,
Error::PreconditionFailed => StatusCode::PRECONDITION_FAILED,
Error::Forbidden(_) => StatusCode::FORBIDDEN,
Error::NotAcceptable(_) => StatusCode::NOT_ACCEPTABLE,
Error::InvalidRange(_) => StatusCode::RANGE_NOT_SATISFIABLE,
Error::NotImplemented(_) => StatusCode::NOT_IMPLEMENTED,
_ => StatusCode::BAD_REQUEST,
Error::AuthorizationHeaderMalformed(_)
| Error::InvalidPart
| Error::InvalidPartOrder
| Error::EntityTooSmall
| Error::InvalidXml(_)
| Error::InvalidUtf8Str(_)
| Error::InvalidUtf8String(_)
| Error::InvalidHeader(_) => StatusCode::BAD_REQUEST,
}
}

12
src/api/s3/list.rs
View file

@ -16,8 +16,8 @@ use garage_model::s3::version_table::Version;
use garage_table::{EmptyKey, EnumerationOrder};
use crate::encoding::*;
use crate::s3::error::*;
use crate::helpers::key_after_prefix;
use crate::s3::error::*;
use crate::s3::put as s3_put;
use crate::s3::xml as s3_xml;
@ -582,11 +582,17 @@ impl ListObjectsQuery {
// representing the key to start with.
(Some(token), _) => match &token[..1] {
"[" => Ok(RangeBegin::IncludingKey {
key: String::from_utf8(base64::decode(token[1..].as_bytes())?)?,
key: String::from_utf8(
base64::decode(token[1..].as_bytes())
.ok_or_bad_request("Invalid continuation token")?,
)?,
fallback_key: None,
}),
"]" => Ok(RangeBegin::AfterKey {
key: String::from_utf8(base64::decode(token[1..].as_bytes())?)?,
key: String::from_utf8(
base64::decode(token[1..].as_bytes())
.ok_or_bad_request("Invalid continuation token")?,
)?,
}),
_ => Err(Error::bad_request("Invalid continuation token".to_string())),
},

15
src/api/s3/post_object.rs
View file

@ -89,9 +89,7 @@ pub async fn handle_post_object(
.to_str()?;
let credential = params
.get("x-amz-credential")
.ok_or_else(|| {
Error::Forbidden("Garage does not support anonymous access yet".to_string())
})?
.ok_or_else(|| Error::forbidden("Garage does not support anonymous access yet"))?
.to_str()?;
let policy = params
.get("policy")
@ -128,15 +126,16 @@ pub async fn handle_post_object(
)
.await?;
let bucket_id = garage.bucket_helper().resolve_bucket(&bucket, &api_key).await?;
let bucket_id = garage
.bucket_helper()
.resolve_bucket(&bucket, &api_key)
.await?;
if !api_key.allow_write(&bucket_id) {
return Err(Error::Forbidden(
"Operation is not allowed for this key.".to_string(),
));
return Err(Error::forbidden("Operation is not allowed for this key."));
}
let decoded_policy = base64::decode(&policy)?;
let decoded_policy = base64::decode(&policy).ok_or_bad_request("Invalid policy")?;
let decoded_policy: Policy =
serde_json::from_slice(&decoded_policy).ok_or_bad_request("Invalid policy")?;

2
src/api/s3/router.rs
View file

@ -3,9 +3,9 @@ use std::borrow::Cow;
use hyper::header::HeaderValue;
use hyper::{HeaderMap, Method, Request};
use crate::s3::error::{Error, OkOrBadRequest};
use crate::helpers::Authorization;
use crate::router_macros::{generateQueryParameters, router_match};
use crate::s3::error::*;
router_match! {@func

23
src/api/s3/website.rs
View file

@ -10,7 +10,6 @@ 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> {
@ -47,14 +46,11 @@ pub async fn handle_delete_website(
bucket_id: Uuid,
) -> Result<Response<Body>, Error> {
let mut bucket = garage
.bucket_table
.get(&EmptyKey, &bucket_id)
.await?
.ok_or(Error::NoSuchBucket)?;
.bucket_helper()
.get_existing_bucket(bucket_id)
.await?;
let param = bucket
.params_mut()
.ok_or_internal_error("Bucket should not be deleted at this point")?;
let param = bucket.params_mut().unwrap();
param.website_config.update(None);
garage.bucket_table.insert(&bucket).await?;
@ -77,14 +73,11 @@ pub async fn handle_put_website(
}
let mut bucket = garage
.bucket_table
.get(&EmptyKey, &bucket_id)
.await?
.ok_or(Error::NoSuchBucket)?;
.bucket_helper()
.get_existing_bucket(bucket_id)
.await?;
let param = bucket
.params_mut()
.ok_or_internal_error("Bucket should not be deleted at this point")?;
let param = bucket.params_mut().unwrap();
let conf: WebsiteConfiguration = from_reader(&body as &[u8])?;
conf.validate()?;

22
src/api/signature/error.rs
View file

@ -1,9 +1,7 @@
use err_derive::Error;
use garage_util::error::Error as GarageError;
use crate::common_error::CommonError;
pub use crate::common_error::{OkOrBadRequest, OkOrInternalError};
pub use crate::common_error::{CommonErrorDerivative, OkOrBadRequest, OkOrInternalError};
/// Errors of this crate
#[derive(Debug, Error)]
@ -16,10 +14,6 @@ pub enum Error {
#[error(display = "Authorization header malformed, expected scope: {}", _0)]
AuthorizationHeaderMalformed(String),
/// No proper api key was used, or the signature was invalid
#[error(display = "Forbidden: {}", _0)]
Forbidden(String),
// Category: bad request
/// The request contained an invalid UTF-8 sequence in its path or in other parameters
#[error(display = "Invalid UTF-8: {}", _0)]
@ -39,16 +33,4 @@ where
}
}
impl Error {
pub fn internal_error<M: ToString>(msg: M) -> Self {
Self::CommonError(CommonError::InternalError(GarageError::Message(
msg.to_string(),
)))
}
pub fn bad_request<M: ToString>(msg: M) -> Self {
Self::CommonError(CommonError::BadRequest(msg.to_string()))
}
}
impl CommonErrorDerivative for Error {}

4
src/api/signature/payload.rs
View file

@ -303,7 +303,7 @@ pub async fn verify_v4(
.get(&EmptyKey, &key_id)
.await?
.filter(|k| !k.state.is_deleted())
.ok_or_else(|| Error::Forbidden(format!("No such key: {}", &key_id)))?;
.ok_or_else(|| Error::forbidden(format!("No such key: {}", &key_id)))?;
let key_p = key.params().unwrap();
let mut hmac = signing_hmac(
@ -316,7 +316,7 @@ pub async fn verify_v4(
hmac.update(payload);
let our_signature = hex::encode(hmac.finalize().into_bytes());
if signature != our_signature {
return Err(Error::Forbidden("Invalid signature".to_string()));
return Err(Error::forbidden("Invalid signature".to_string()));
}
Ok(key)

12
src/model/helper/bucket.rs
View file

@ -6,10 +6,10 @@ use garage_util::time::*;
use crate::bucket_alias_table::*;
use crate::bucket_table::*;
use crate::key_table::*;
use crate::garage::Garage;
use crate::helper::error::*;
use crate::helper::key::KeyHelper;
use crate::key_table::*;
use crate::permission::BucketKeyPerm;
pub struct BucketHelper<'a>(pub(crate) &'a Garage);
@ -51,11 +51,7 @@ impl<'a> BucketHelper<'a> {
}
#[allow(clippy::ptr_arg)]
pub async fn resolve_bucket(
&self,
bucket_name: &String,
api_key: &Key,
) -> Result<Uuid, Error> {
pub async fn resolve_bucket(&self, bucket_name: &String, api_key: &Key) -> Result<Uuid, Error> {
let api_key_params = api_key
.state
.as_option()
@ -64,8 +60,8 @@ impl<'a> BucketHelper<'a> {
if let Some(Some(bucket_id)) = api_key_params.local_aliases.get(bucket_name) {
Ok(*bucket_id)
} else {
Ok(self.
resolve_global_bucket_name(bucket_name)
Ok(self
.resolve_global_bucket_name(bucket_name)
.await?
.ok_or_else(|| Error::NoSuchBucket(bucket_name.to_string()))?)
}

4
src/web/web_server.rs
View file

@ -18,9 +18,11 @@ use opentelemetry::{
use crate::error::*;
use garage_api::s3::error::{Error as ApiError, OkOrBadRequest, OkOrInternalError};
use garage_api::helpers::{authority_to_host, host_to_bucket};
use garage_api::s3::cors::{add_cors_headers, find_matching_cors_rule, handle_options_for_bucket};
use garage_api::s3::error::{
CommonErrorDerivative, Error as ApiError, OkOrBadRequest, OkOrInternalError,
};
use garage_api::s3::get::{handle_get, handle_head};
use garage_model::garage::Garage;