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Small changes in key model and refactoring

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This commit is contained in:
Alex Auvolat 2022-01-04 18:59:17 +01:00
parent df35feba18
commit 677ab60cc1
No known key found for this signature in database
GPG key ID: EDABF9711E244EB1
7 changed files with 120 additions and 104 deletions
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8
src/api/s3_bucket.rs
View file

@ -38,8 +38,8 @@ pub fn handle_get_bucket_versioning() -> Result<Response<Body>, Error> {
}
pub async fn handle_list_buckets(garage: &Garage, api_key: &Key) -> Result<Response<Body>, Error> {
let key_state = api_key.state.as_option().ok_or_internal_error(
"Key should not be in deleted state at this point (internal error)",
let key_p = api_key.params().ok_or_internal_error(
"Key should not be in deleted state at this point (in handle_list_buckets)",
)?;
// Collect buckets user has access to
@ -74,7 +74,7 @@ pub async fn handle_list_buckets(garage: &Garage, api_key: &Key) -> Result<Respo
}
}
for (alias, _, id_opt) in key_state.local_aliases.items() {
for (alias, _, id_opt) in key_p.local_aliases.items() {
if let Some(id) = id_opt {
aliases.insert(alias.clone(), *id);
}
@ -83,7 +83,7 @@ pub async fn handle_list_buckets(garage: &Garage, api_key: &Key) -> Result<Respo
// Generate response
let list_buckets = s3_xml::ListAllMyBucketsResult {
owner: s3_xml::Owner {
display_name: s3_xml::Value(api_key.name.get().to_string()),
display_name: s3_xml::Value(key_p.name.get().to_string()),
id: s3_xml::Value(api_key.key_id.to_string()),
},
buckets: s3_xml::BucketList {

3
src/api/signature.rs
View file

@ -66,6 +66,7 @@ pub async fn check_signature(
.await?
.filter(|k| !k.state.is_deleted())
.ok_or_else(|| Error::Forbidden(format!("No such key: {}", authorization.key_id)))?;
let key_p = key.params().unwrap();
let canonical_request = canonical_request(
request.method(),
@ -79,7 +80,7 @@ pub async fn check_signature(
let mut hmac = signing_hmac(
&date,
&key.secret_key,
&key_p.secret_key,
&garage.config.s3_api.s3_region,
"s3",
)

21
src/garage/admin.rs
View file

@ -107,7 +107,13 @@ impl AdminRpcHandler {
.items()
.iter()
{
if let Some(key) = self.garage.key_table.get(&EmptyKey, k).await? {
if let Some(key) = self
.garage
.key_table
.get(&EmptyKey, k)
.await?
.filter(|k| !k.is_deleted())
{
relevant_keys.insert(k.clone(), key);
}
}
@ -222,7 +228,7 @@ impl AdminRpcHandler {
// 1. delete authorization from keys that had access
for (key_id, _) in bucket.authorized_keys() {
helper
.set_bucket_key_permissions(bucket.id, key_id, BucketKeyPerm::no_permissions())
.set_bucket_key_permissions(bucket.id, key_id, BucketKeyPerm::NO_PERMISSIONS)
.await?;
}
@ -439,7 +445,7 @@ impl AdminRpcHandler {
)
.await?
.iter()
.map(|k| (k.key_id.to_string(), k.name.get().clone()))
.map(|k| (k.key_id.to_string(), k.params().unwrap().name.get().clone()))
.collect::<Vec<_>>();
Ok(AdminRpc::KeyList(key_ids))
}
@ -454,7 +460,7 @@ impl AdminRpcHandler {
}
async fn handle_create_key(&self, query: &KeyNewOpt) -> Result<AdminRpc, Error> {
let key = Key::new(query.name.clone());
let key = Key::new(&query.name);
self.garage.key_table.insert(&key).await?;
self.key_info_result(key).await
}
@ -465,7 +471,10 @@ impl AdminRpcHandler {
.bucket_helper()
.get_existing_matching_key(&query.key_pattern)
.await?;
key.name.update(query.new_name.clone());
key.params_mut()
.unwrap()
.name
.update(query.new_name.clone());
self.garage.key_table.insert(&key).await?;
self.key_info_result(key).await
}
@ -500,7 +509,7 @@ impl AdminRpcHandler {
// 2. Remove permissions on all authorized buckets
for (ab_id, _auth) in state.authorized_buckets.items().iter() {
helper
.set_bucket_key_permissions(*ab_id, &key.key_id, BucketKeyPerm::no_permissions())
.set_bucket_key_permissions(*ab_id, &key.key_id, BucketKeyPerm::NO_PERMISSIONS)
.await?;
}

31
src/garage/cli/util.rs
View file

@ -65,11 +65,11 @@ pub fn print_key_info(key: &Key, relevant_buckets: &HashMap<Uuid, Bucket>) {
"".to_string()
};
println!("Key name: {}", key.name.get());
println!("Key ID: {}", key.key_id);
println!("Secret key: {}", key.secret_key);
match &key.state {
Deletable::Present(p) => {
println!("Key name: {}", p.name.get());
println!("Key ID: {}", key.key_id);
println!("Secret key: {}", p.secret_key);
println!("Can create buckets: {}", p.allow_create_bucket.get());
println!("\nKey-specific bucket aliases:");
let mut table = vec![];
@ -112,12 +112,19 @@ pub fn print_key_info(key: &Key, relevant_buckets: &HashMap<Uuid, Bucket>) {
format_table(table);
}
Deletable::Deleted => {
println!("\nKey is deleted.");
println!("Key {} is deleted.", key.key_id);
}
}
}
pub fn print_bucket_info(bucket: &Bucket, relevant_keys: &HashMap<String, Key>) {
let key_name = |k| {
relevant_keys
.get(k)
.map(|k| k.params().unwrap().name.get().as_str())
.unwrap_or("<deleted>")
};
println!("Bucket: {}", hex::encode(bucket.id));
match &bucket.state {
Deletable::Deleted => println!("Bucket is deleted."),
@ -135,11 +142,7 @@ pub fn print_bucket_info(bucket: &Bucket, relevant_keys: &HashMap<String, Key>)
let mut table = vec![];
for ((key_id, alias), _, active) in p.local_aliases.items().iter() {
if *active {
let key_name = relevant_keys
.get(key_id)
.map(|k| k.name.get().as_str())
.unwrap_or("");
table.push(format!("\t{} ({})\t{}", key_id, key_name, alias));
table.push(format!("\t{} ({})\t{}", key_id, key_name(key_id), alias));
}
}
format_table(table);
@ -150,13 +153,13 @@ pub fn print_bucket_info(bucket: &Bucket, relevant_keys: &HashMap<String, Key>)
let rflag = if perm.allow_read { "R" } else { " " };
let wflag = if perm.allow_write { "W" } else { " " };
let oflag = if perm.allow_owner { "O" } else { " " };
let key_name = relevant_keys
.get(k)
.map(|k| k.name.get().as_str())
.unwrap_or("");
table.push(format!(
"\t{}{}{}\t{}\t{}",
rflag, wflag, oflag, k, key_name
rflag,
wflag,
oflag,
k,
key_name(k)
));
}
format_table(table);

29
src/model/bucket_table.rs
View file

@ -97,27 +97,32 @@ impl Bucket {
self.state.is_deleted()
}
/// Returns an option representing the parameters (None if in deleted state)
pub fn params(&self) -> Option<&BucketParams> {
self.state.as_option()
}
/// Mutable version of `.params()`
pub fn params_mut(&mut self) -> Option<&mut BucketParams> {
self.state.as_option_mut()
}
/// Return the list of authorized keys, when each was updated, and the permission associated to
/// the key
pub fn authorized_keys(&self) -> &[(String, BucketKeyPerm)] {
match &self.state {
crdt::Deletable::Deleted => &[],
crdt::Deletable::Present(state) => state.authorized_keys.items(),
}
self.params()
.map(|s| s.authorized_keys.items())
.unwrap_or(&[])
}
pub fn aliases(&self) -> &[(String, u64, bool)] {
match &self.state {
crdt::Deletable::Deleted => &[],
crdt::Deletable::Present(state) => state.aliases.items(),
}
self.params().map(|s| s.aliases.items()).unwrap_or(&[])
}
pub fn local_aliases(&self) -> &[((String, String), u64, bool)] {
match &self.state {
crdt::Deletable::Deleted => &[],
crdt::Deletable::Present(state) => state.local_aliases.items(),
}
self.params()
.map(|s| s.local_aliases.items())
.unwrap_or(&[])
}
}

118
src/model/key_table.rs
View file

@ -14,29 +14,37 @@ pub struct Key {
/// The id of the key (immutable), used as partition key
pub key_id: String,
/// The secret_key associated
pub secret_key: String,
/// Name for the key
pub name: crdt::Lww<String>,
/// If the key is present: it gives some permissions,
/// a map of bucket IDs (uuids) to permissions.
/// Otherwise no permissions are granted to key
/// Internal state of the key
pub state: crdt::Deletable<KeyParams>,
}
/// Configuration for a key
#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
pub struct KeyParams {
/// The secret_key associated (immutable)
pub secret_key: String,
/// Name for the key
pub name: crdt::Lww<String>,
/// Flag to allow users having this key to create buckets
pub allow_create_bucket: crdt::Lww<bool>,
/// If the key is present: it gives some permissions,
/// a map of bucket IDs (uuids) to permissions.
/// Otherwise no permissions are granted to key
pub authorized_buckets: crdt::Map<Uuid, BucketKeyPerm>,
/// A key can have a local view of buckets names it is
/// the only one to see, this is the namespace for these aliases
pub local_aliases: crdt::LwwMap<String, Option<Uuid>>,
}
impl KeyParams {
pub fn new() -> Self {
fn new(secret_key: &str, name: &str) -> Self {
KeyParams {
secret_key: secret_key.to_string(),
name: crdt::Lww::new(name.to_string()),
allow_create_bucket: crdt::Lww::new(false),
authorized_buckets: crdt::Map::new(),
local_aliases: crdt::LwwMap::new(),
@ -44,14 +52,9 @@ impl KeyParams {
}
}
impl Default for KeyParams {
fn default() -> Self {
Self::new()
}
}
impl Crdt for KeyParams {
fn merge(&mut self, o: &Self) {
self.name.merge(&o.name);
self.allow_create_bucket.merge(&o.allow_create_bucket);
self.authorized_buckets.merge(&o.authorized_buckets);
self.local_aliases.merge(&o.local_aliases);
@ -60,14 +63,12 @@ impl Crdt for KeyParams {
impl Key {
/// Initialize a new Key, generating a random identifier and associated secret key
pub fn new(name: String) -> Self {
pub fn new(name: &str) -> Self {
let key_id = format!("GK{}", hex::encode(&rand::random::<[u8; 12]>()[..]));
let secret_key = hex::encode(&rand::random::<[u8; 32]>()[..]);
Self {
key_id,
secret_key,
name: crdt::Lww::new(name),
state: crdt::Deletable::present(KeyParams::new()),
state: crdt::Deletable::present(KeyParams::new(&secret_key, name)),
}
}
@ -75,9 +76,7 @@ impl Key {
pub fn import(key_id: &str, secret_key: &str, name: &str) -> Self {
Self {
key_id: key_id.to_string(),
secret_key: secret_key.to_string(),
name: crdt::Lww::new(name.to_string()),
state: crdt::Deletable::present(KeyParams::new()),
state: crdt::Deletable::present(KeyParams::new(secret_key, name)),
}
}
@ -85,49 +84,47 @@ impl Key {
pub fn delete(key_id: String) -> Self {
Self {
key_id,
secret_key: "".into(),
name: crdt::Lww::new("".to_string()),
state: crdt::Deletable::Deleted,
}
}
/// Returns true if this represents a deleted bucket
pub fn is_deleted(&self) -> bool {
self.state.is_deleted()
}
/// Returns an option representing the params (None if in deleted state)
pub fn params(&self) -> Option<&KeyParams> {
self.state.as_option()
}
/// Mutable version of `.state()`
pub fn params_mut(&mut self) -> Option<&mut KeyParams> {
self.state.as_option_mut()
}
/// Get permissions for a bucket
pub fn bucket_permissions(&self, bucket: &Uuid) -> BucketKeyPerm {
self.params()
.map(|params| params.authorized_buckets.get(bucket))
.flatten()
.cloned()
.unwrap_or(BucketKeyPerm::NO_PERMISSIONS)
}
/// Check if `Key` is allowed to read in bucket
pub fn allow_read(&self, bucket: &Uuid) -> bool {
if let crdt::Deletable::Present(params) = &self.state {
params
.authorized_buckets
.get(bucket)
.map(|x| x.allow_read)
.unwrap_or(false)
} else {
false
}
self.bucket_permissions(bucket).allow_read
}
/// Check if `Key` is allowed to write in bucket
pub fn allow_write(&self, bucket: &Uuid) -> bool {
if let crdt::Deletable::Present(params) = &self.state {
params
.authorized_buckets
.get(bucket)
.map(|x| x.allow_write)
.unwrap_or(false)
} else {
false
}
self.bucket_permissions(bucket).allow_write
}
/// Check if `Key` is owner of bucket
pub fn allow_owner(&self, bucket: &Uuid) -> bool {
if let crdt::Deletable::Present(params) = &self.state {
params
.authorized_buckets
.get(bucket)
.map(|x| x.allow_owner)
.unwrap_or(false)
} else {
false
}
self.bucket_permissions(bucket).allow_owner
}
}
@ -142,7 +139,6 @@ impl Entry<EmptyKey, String> for Key {
impl Crdt for Key {
fn merge(&mut self, other: &Self) {
self.name.merge(&other.name);
self.state.merge(&other.state);
}
}
@ -168,15 +164,20 @@ impl TableSchema for KeyTable {
KeyFilter::Deleted(df) => df.apply(entry.state.is_deleted()),
KeyFilter::MatchesAndNotDeleted(pat) => {
let pat = pat.to_lowercase();
!entry.state.is_deleted()
&& (entry.key_id.to_lowercase().starts_with(&pat)
|| entry.name.get().to_lowercase() == pat)
entry
.params()
.map(|p| {
entry.key_id.to_lowercase().starts_with(&pat)
|| p.name.get().to_lowercase() == pat
})
.unwrap_or(false)
}
}
}
fn try_migrate(bytes: &[u8]) -> Option<Self::E> {
let old_k = rmp_serde::decode::from_read_ref::<_, old::Key>(bytes).ok()?;
let name = crdt::Lww::raw(old_k.name.timestamp(), old_k.name.get().clone());
let state = if old_k.deleted.get() {
crdt::Deletable::Deleted
@ -185,16 +186,15 @@ impl TableSchema for KeyTable {
// migration is performed in specific migration code in
// garage/migrate.rs
crdt::Deletable::Present(KeyParams {
secret_key: old_k.secret_key,
name,
allow_create_bucket: crdt::Lww::new(false),
authorized_buckets: crdt::Map::new(),
local_aliases: crdt::LwwMap::new(),
})
};
let name = crdt::Lww::raw(old_k.name.timestamp(), old_k.name.get().clone());
Some(Key {
key_id: old_k.key_id,
secret_key: old_k.secret_key,
name,
state,
})
}

14
src/model/permission.rs
View file

@ -21,14 +21,12 @@ pub struct BucketKeyPerm {
}
impl BucketKeyPerm {
pub fn no_permissions() -> Self {
Self {
timestamp: 0,
allow_read: false,
allow_write: false,
allow_owner: false,
}
}
pub const NO_PERMISSIONS: Self = Self {
timestamp: 0,
allow_read: false,
allow_write: false,
allow_owner: false,
};
}
impl Crdt for BucketKeyPerm {