garage/src/api/s3_xml.rs
Alex Auvolat 6ccffc3162
Improved XML serialization
- Use quick_xml and serde for all XML response returned by the S3 API.
- Include tests for all structs used to generate XML
- Remove old manual XML escaping function which was unsafe
2021-05-06 22:37:15 +02:00

597 lines
16 KiB
Rust

use quick_xml::se::to_string;
use serde::{Serialize, Serializer};
use crate::Error as ApiError;
pub fn to_xml_with_header<T: Serialize>(x: &T) -> Result<String, ApiError> {
let mut xml = r#"<?xml version="1.0" encoding="UTF-8"?>"#.to_string();
xml.push_str(&to_string(x)?);
Ok(xml)
}
fn xmlns_tag<S: Serializer>(_v: &(), s: S) -> Result<S::Ok, S::Error> {
s.serialize_str("http://s3.amazonaws.com/doc/2006-03-01/")
}
#[derive(Debug, Serialize, PartialEq)]
pub struct Value(#[serde(rename = "$value")] pub String);
#[derive(Debug, Serialize, PartialEq)]
pub struct IntValue(#[serde(rename = "$value")] pub i64);
#[derive(Debug, Serialize, PartialEq)]
pub struct Bucket {
#[serde(rename = "CreationDate")]
pub creation_date: Value,
#[serde(rename = "Name")]
pub name: Value,
}
#[derive(Debug, Serialize, PartialEq)]
pub struct DisplayName(#[serde(rename = "$value")] pub String);
#[derive(Debug, Serialize, PartialEq)]
pub struct Id(#[serde(rename = "$value")] pub String);
#[derive(Debug, Serialize, PartialEq)]
pub struct Owner {
#[serde(rename = "DisplayName")]
pub display_name: Value,
#[serde(rename = "ID")]
pub id: Value,
}
#[derive(Debug, Serialize, PartialEq)]
pub struct BucketList {
#[serde(rename = "Bucket")]
pub entries: Vec<Bucket>,
}
#[derive(Debug, Serialize, PartialEq)]
pub struct ListAllMyBucketsResult {
#[serde(rename = "Buckets")]
pub buckets: BucketList,
#[serde(rename = "Owner")]
pub owner: Owner,
}
#[derive(Debug, Serialize, PartialEq)]
pub struct LocationConstraint {
#[serde(serialize_with = "xmlns_tag")]
pub xmlns: (),
#[serde(rename = "$value")]
pub region: String,
}
#[derive(Debug, Serialize, PartialEq)]
pub struct Deleted {
#[serde(rename = "Key")]
pub key: Value,
#[serde(rename = "VersionId")]
pub version_id: Value,
#[serde(rename = "DeleteMarkerVersionId")]
pub delete_marker_version_id: Value,
}
#[derive(Debug, Serialize, PartialEq)]
pub struct Error {
#[serde(rename = "Code")]
pub code: Value,
#[serde(rename = "Message")]
pub message: Value,
#[serde(rename = "Resource")]
pub resource: Option<Value>,
#[serde(rename = "Region")]
pub region: Option<Value>,
}
#[derive(Debug, Serialize, PartialEq)]
pub struct DeleteError {
#[serde(rename = "Code")]
pub code: Value,
#[serde(rename = "Key")]
pub key: Option<Value>,
#[serde(rename = "Message")]
pub message: Value,
#[serde(rename = "VersionId")]
pub version_id: Option<Value>,
}
#[derive(Debug, Serialize, PartialEq)]
pub struct DeleteResult {
#[serde(serialize_with = "xmlns_tag")]
pub xmlns: (),
#[serde(rename = "Deleted")]
pub deleted: Vec<Deleted>,
#[serde(rename = "Error")]
pub errors: Vec<DeleteError>,
}
#[derive(Debug, Serialize, PartialEq)]
pub struct CopyObjectResult {
#[serde(rename = "LastModified")]
pub last_modified: Value,
#[serde(rename = "ETag")]
pub etag: Value,
}
#[derive(Debug, Serialize, PartialEq)]
pub struct InitiateMultipartUploadResult {
#[serde(serialize_with = "xmlns_tag")]
pub xmlns: (),
#[serde(rename = "Bucket")]
pub bucket: Value,
#[serde(rename = "Key")]
pub key: Value,
#[serde(rename = "UploadId")]
pub upload_id: Value,
}
#[derive(Debug, Serialize, PartialEq)]
pub struct CompleteMultipartUploadResult {
#[serde(serialize_with = "xmlns_tag")]
pub xmlns: (),
#[serde(rename = "Location")]
pub location: Option<Value>,
#[serde(rename = "Bucket")]
pub bucket: Value,
#[serde(rename = "Key")]
pub key: Value,
#[serde(rename = "ETag")]
pub etag: Value,
}
#[derive(Debug, Serialize, PartialEq)]
pub struct ListBucketItem {
#[serde(rename = "Key")]
pub key: Value,
#[serde(rename = "LastModified")]
pub last_modified: Value,
#[serde(rename = "ETag")]
pub etag: Value,
#[serde(rename = "Size")]
pub size: IntValue,
#[serde(rename = "StorageClass")]
pub storage_class: Value,
}
#[derive(Debug, Serialize, PartialEq)]
pub struct CommonPrefix {
#[serde(rename = "Prefix")]
pub prefix: Value,
}
#[derive(Debug, Serialize, PartialEq)]
pub struct ListBucketResult {
#[serde(serialize_with = "xmlns_tag")]
pub xmlns: (),
#[serde(rename = "Name")]
pub name: Value,
#[serde(rename = "Prefix")]
pub prefix: Value,
#[serde(rename = "Marker")]
pub marker: Option<Value>,
#[serde(rename = "NextMarker")]
pub next_marker: Option<Value>,
#[serde(rename = "StartAfter")]
pub start_after: Option<Value>,
#[serde(rename = "ContinuationToken")]
pub continuation_token: Option<Value>,
#[serde(rename = "NextContinuationToken")]
pub next_continuation_token: Option<Value>,
#[serde(rename = "KeyCount")]
pub key_count: Option<IntValue>,
#[serde(rename = "MaxKeys")]
pub max_keys: IntValue,
#[serde(rename = "Delimiter")]
pub delimiter: Option<Value>,
#[serde(rename = "EncodingType")]
pub encoding_type: Option<Value>,
#[serde(rename = "IsTruncated")]
pub is_truncated: Value,
#[serde(rename = "Contents")]
pub contents: Vec<ListBucketItem>,
#[serde(rename = "CommonPrefixes")]
pub common_prefixes: Vec<CommonPrefix>,
}
#[cfg(test)]
mod tests {
use super::*;
use garage_util::time::*;
#[test]
fn error_message() -> Result<(), ApiError> {
let error = Error {
code: Value("TestError".to_string()),
message: Value("A dummy error message".to_string()),
resource: Some(Value("/bucket/a/plop".to_string())),
region: Some(Value("garage".to_string())),
};
assert_eq!(
to_xml_with_header(&error)?,
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\
<Error>\
<Code>TestError</Code>\
<Message>A dummy error message</Message>\
<Resource>/bucket/a/plop</Resource>\
<Region>garage</Region>\
</Error>"
);
Ok(())
}
#[test]
fn list_all_my_buckets_result() -> Result<(), ApiError> {
let list_buckets = ListAllMyBucketsResult {
owner: Owner {
display_name: Value("owner_name".to_string()),
id: Value("qsdfjklm".to_string()),
},
buckets: BucketList {
entries: vec![
Bucket {
creation_date: Value(msec_to_rfc3339(0)),
name: Value("bucket_A".to_string()),
},
Bucket {
creation_date: Value(msec_to_rfc3339(3600 * 24 * 1000)),
name: Value("bucket_B".to_string()),
},
],
},
};
assert_eq!(
to_xml_with_header(&list_buckets)?,
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\
<ListAllMyBucketsResult>\
<Buckets>\
<Bucket>\
<CreationDate>1970-01-01T00:00:00.000Z</CreationDate>\
<Name>bucket_A</Name>\
</Bucket>\
<Bucket>\
<CreationDate>1970-01-02T00:00:00.000Z</CreationDate>\
<Name>bucket_B</Name>\
</Bucket>\
</Buckets>\
<Owner>\
<DisplayName>owner_name</DisplayName>\
<ID>qsdfjklm</ID>\
</Owner>\
</ListAllMyBucketsResult>"
);
Ok(())
}
#[test]
fn get_bucket_location_result() -> Result<(), ApiError> {
let get_bucket_location = LocationConstraint {
xmlns: (),
region: "garage".to_string(),
};
assert_eq!(
to_xml_with_header(&get_bucket_location)?,
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\
<LocationConstraint xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\">garage</LocationConstraint>"
);
Ok(())
}
#[test]
fn delete_result() -> Result<(), ApiError> {
let delete_result = DeleteResult {
xmlns: (),
deleted: vec![
Deleted {
key: Value("a/plop".to_string()),
version_id: Value("qsdfjklm".to_string()),
delete_marker_version_id: Value("wxcvbn".to_string()),
},
Deleted {
key: Value("b/plip".to_string()),
version_id: Value("1234".to_string()),
delete_marker_version_id: Value("4321".to_string()),
},
],
errors: vec![
DeleteError {
code: Value("NotFound".to_string()),
key: Some(Value("c/plap".to_string())),
message: Value("Object c/plap not found".to_string()),
version_id: None,
},
DeleteError {
code: Value("Forbidden".to_string()),
key: Some(Value("d/plep".to_string())),
message: Value("Not authorized".to_string()),
version_id: Some(Value("789".to_string())),
},
],
};
assert_eq!(
to_xml_with_header(&delete_result)?,
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\
<DeleteResult xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\">\
<Deleted>\
<Key>a/plop</Key>\
<VersionId>qsdfjklm</VersionId>\
<DeleteMarkerVersionId>wxcvbn</DeleteMarkerVersionId>\
</Deleted>\
<Deleted>\
<Key>b/plip</Key>\
<VersionId>1234</VersionId>\
<DeleteMarkerVersionId>4321</DeleteMarkerVersionId>\
</Deleted>\
<Error>\
<Code>NotFound</Code>\
<Key>c/plap</Key>\
<Message>Object c/plap not found</Message>\
</Error>\
<Error>\
<Code>Forbidden</Code>\
<Key>d/plep</Key>\
<Message>Not authorized</Message>\
<VersionId>789</VersionId>\
</Error>\
</DeleteResult>"
);
Ok(())
}
#[test]
fn copy_object_result() -> Result<(), ApiError> {
let copy_result = CopyObjectResult {
last_modified: Value(msec_to_rfc3339(0)),
etag: Value("9b2cf535f27731c974343645a3985328".to_string()),
};
assert_eq!(
to_xml_with_header(&copy_result)?,
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\
<CopyObjectResult>\
<LastModified>1970-01-01T00:00:00.000Z</LastModified>\
<ETag>9b2cf535f27731c974343645a3985328</ETag>\
</CopyObjectResult>\
"
);
Ok(())
}
#[test]
fn initiate_multipart_upload_result() -> Result<(), ApiError> {
let result = InitiateMultipartUploadResult {
xmlns: (),
bucket: Value("mybucket".to_string()),
key: Value("a/plop".to_string()),
upload_id: Value("azerty".to_string()),
};
assert_eq!(
to_xml_with_header(&result)?,
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\
<InitiateMultipartUploadResult xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\">\
<Bucket>mybucket</Bucket>\
<Key>a/plop</Key>\
<UploadId>azerty</UploadId>\
</InitiateMultipartUploadResult>"
);
Ok(())
}
#[test]
fn complete_multipart_upload_result() -> Result<(), ApiError> {
let result = CompleteMultipartUploadResult {
xmlns: (),
location: Some(Value("https://garage.tld/mybucket/a/plop".to_string())),
bucket: Value("mybucket".to_string()),
key: Value("a/plop".to_string()),
etag: Value("3858f62230ac3c915f300c664312c11f-9".to_string()),
};
assert_eq!(
to_xml_with_header(&result)?,
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\
<CompleteMultipartUploadResult xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\">\
<Location>https://garage.tld/mybucket/a/plop</Location>\
<Bucket>mybucket</Bucket>\
<Key>a/plop</Key>\
<ETag>3858f62230ac3c915f300c664312c11f-9</ETag>\
</CompleteMultipartUploadResult>"
);
Ok(())
}
#[test]
fn list_objects_v1_1() -> Result<(), ApiError> {
let result = ListBucketResult {
xmlns: (),
name: Value("example-bucket".to_string()),
prefix: Value("".to_string()),
marker: Some(Value("".to_string())),
next_marker: None,
start_after: None,
continuation_token: None,
next_continuation_token: None,
key_count: None,
max_keys: IntValue(1000),
encoding_type: None,
delimiter: Some(Value("/".to_string())),
is_truncated: Value("false".to_string()),
contents: vec![ListBucketItem {
key: Value("sample.jpg".to_string()),
last_modified: Value(msec_to_rfc3339(0)),
etag: Value("bf1d737a4d46a19f3bced6905cc8b902".to_string()),
size: IntValue(142863),
storage_class: Value("STANDARD".to_string()),
}],
common_prefixes: vec![CommonPrefix {
prefix: Value("photos/".to_string()),
}],
};
assert_eq!(
to_xml_with_header(&result)?,
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\
<ListBucketResult xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\">\
<Name>example-bucket</Name>\
<Prefix></Prefix>\
<Marker></Marker>\
<MaxKeys>1000</MaxKeys>\
<Delimiter>/</Delimiter>\
<IsTruncated>false</IsTruncated>\
<Contents>\
<Key>sample.jpg</Key>\
<LastModified>1970-01-01T00:00:00.000Z</LastModified>\
<ETag>bf1d737a4d46a19f3bced6905cc8b902</ETag>\
<Size>142863</Size>\
<StorageClass>STANDARD</StorageClass>\
</Contents>\
<CommonPrefixes>\
<Prefix>photos/</Prefix>\
</CommonPrefixes>\
</ListBucketResult>"
);
Ok(())
}
#[test]
fn list_objects_v1_2() -> Result<(), ApiError> {
let result = ListBucketResult {
xmlns: (),
name: Value("example-bucket".to_string()),
prefix: Value("photos/2006/".to_string()),
marker: Some(Value("".to_string())),
next_marker: None,
start_after: None,
continuation_token: None,
next_continuation_token: None,
key_count: None,
max_keys: IntValue(1000),
delimiter: Some(Value("/".to_string())),
encoding_type: None,
is_truncated: Value("false".to_string()),
contents: vec![],
common_prefixes: vec![
CommonPrefix {
prefix: Value("photos/2006/February/".to_string()),
},
CommonPrefix {
prefix: Value("photos/2006/January/".to_string()),
},
],
};
assert_eq!(
to_xml_with_header(&result)?,
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\
<ListBucketResult xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\">\
<Name>example-bucket</Name>\
<Prefix>photos/2006/</Prefix>\
<Marker></Marker>\
<MaxKeys>1000</MaxKeys>\
<Delimiter>/</Delimiter>\
<IsTruncated>false</IsTruncated>\
<CommonPrefixes>\
<Prefix>photos/2006/February/</Prefix>\
</CommonPrefixes>\
<CommonPrefixes>\
<Prefix>photos/2006/January/</Prefix>\
</CommonPrefixes>\
</ListBucketResult>"
);
Ok(())
}
#[test]
fn list_objects_v2_1() -> Result<(), ApiError> {
let result = ListBucketResult {
xmlns: (),
name: Value("quotes".to_string()),
prefix: Value("E".to_string()),
marker: None,
next_marker: None,
start_after: Some(Value("ExampleGuide.pdf".to_string())),
continuation_token: None,
next_continuation_token: None,
key_count: None,
max_keys: IntValue(3),
delimiter: None,
encoding_type: None,
is_truncated: Value("false".to_string()),
contents: vec![ListBucketItem {
key: Value("ExampleObject.txt".to_string()),
last_modified: Value(msec_to_rfc3339(0)),
etag: Value("599bab3ed2c697f1d26842727561fd94".to_string()),
size: IntValue(857),
storage_class: Value("REDUCED_REDUNDANCY".to_string()),
}],
common_prefixes: vec![],
};
assert_eq!(
to_xml_with_header(&result)?,
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\
<ListBucketResult xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\">\
<Name>quotes</Name>\
<Prefix>E</Prefix>\
<StartAfter>ExampleGuide.pdf</StartAfter>\
<MaxKeys>3</MaxKeys>\
<IsTruncated>false</IsTruncated>\
<Contents>\
<Key>ExampleObject.txt</Key>\
<LastModified>1970-01-01T00:00:00.000Z</LastModified>\
<ETag>599bab3ed2c697f1d26842727561fd94</ETag>\
<Size>857</Size>\
<StorageClass>REDUCED_REDUNDANCY</StorageClass>\
</Contents>\
</ListBucketResult>"
);
Ok(())
}
#[test]
fn list_objects_v2_2() -> Result<(), ApiError> {
let result = ListBucketResult {
xmlns: (),
name: Value("bucket".to_string()),
prefix: Value("".to_string()),
marker: None,
next_marker: None,
start_after: None,
continuation_token: Some(Value(
"1ueGcxLPRx1Tr/XYExHnhbYLgveDs2J/wm36Hy4vbOwM=".to_string(),
)),
next_continuation_token: Some(Value("qsdfjklm".to_string())),
key_count: Some(IntValue(112)),
max_keys: IntValue(1000),
delimiter: None,
encoding_type: None,
is_truncated: Value("false".to_string()),
contents: vec![ListBucketItem {
key: Value("happyfacex.jpg".to_string()),
last_modified: Value(msec_to_rfc3339(0)),
etag: Value("70ee1738b6b21e2c8a43f3a5ab0eee71".to_string()),
size: IntValue(1111),
storage_class: Value("STANDARD".to_string()),
}],
common_prefixes: vec![],
};
assert_eq!(
to_xml_with_header(&result)?,
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\
<ListBucketResult xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\">\
<Name>bucket</Name>\
<Prefix></Prefix>\
<ContinuationToken>1ueGcxLPRx1Tr/XYExHnhbYLgveDs2J/wm36Hy4vbOwM=</ContinuationToken>\
<NextContinuationToken>qsdfjklm</NextContinuationToken>\
<KeyCount>112</KeyCount>\
<MaxKeys>1000</MaxKeys>\
<IsTruncated>false</IsTruncated>\
<Contents>\
<Key>happyfacex.jpg</Key>\
<LastModified>1970-01-01T00:00:00.000Z</LastModified>\
<ETag>70ee1738b6b21e2c8a43f3a5ab0eee71</ETag>\
<Size>1111</Size>\
<StorageClass>STANDARD</StorageClass>\
</Contents>\
</ListBucketResult>"
);
Ok(())
}
}