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use {
super::AwsPrincipal,
crate::{display_json, from_str_json, serutil::StringLikeList},
derive_builder::Builder,
scratchstack_aws_principal::{Principal as PrincipalActor, PrincipalIdentity, PrincipalSource},
serde::{Deserialize, Serialize},
};
#[derive(Builder, Clone, Debug, Deserialize, Eq, PartialEq, Serialize)]
pub struct SpecifiedPrincipal {
#[builder(setter(into, strip_option), default)]
#[serde(rename = "AWS", skip_serializing_if = "Option::is_none")]
aws: Option<StringLikeList<AwsPrincipal>>,
#[builder(setter(into, strip_option), default)]
#[serde(rename = "CanonicalUser", skip_serializing_if = "Option::is_none")]
canonical_user: Option<StringLikeList<String>>,
#[builder(setter(into, strip_option), default)]
#[serde(rename = "Federated", skip_serializing_if = "Option::is_none")]
federated: Option<StringLikeList<String>>,
#[builder(setter(into, strip_option), default)]
#[serde(rename = "Service", skip_serializing_if = "Option::is_none")]
service: Option<StringLikeList<String>>,
}
display_json!(SpecifiedPrincipal);
from_str_json!(SpecifiedPrincipal);
impl SpecifiedPrincipal {
#[inline]
pub fn builder() -> SpecifiedPrincipalBuilder {
SpecifiedPrincipalBuilder::default()
}
#[inline]
pub fn aws(&self) -> Option<&StringLikeList<AwsPrincipal>> {
self.aws.as_ref()
}
#[inline]
pub fn canonical_user(&self) -> Option<&StringLikeList<String>> {
self.canonical_user.as_ref()
}
#[inline]
pub fn federated(&self) -> Option<&StringLikeList<String>> {
self.federated.as_ref()
}
#[inline]
pub fn service(&self) -> Option<&StringLikeList<String>> {
self.service.as_ref()
}
pub fn matches(&self, actor: &PrincipalActor) -> bool {
for identity in actor.iter() {
let source = identity.source();
match source {
PrincipalSource::Aws => {
if let Some(aws_ids) = self.aws() {
for aws_id in aws_ids.iter() {
if aws_id.matches(identity) {
return true;
}
}
}
}
PrincipalSource::CanonicalUser => {
if let PrincipalIdentity::CanonicalUser(identity) = identity {
if let Some(canonical_users) = self.canonical_user() {
for canonical_user in canonical_users.iter() {
if canonical_user == identity.canonical_user_id() {
return true;
}
}
}
}
}
PrincipalSource::Federated => {
if let PrincipalIdentity::FederatedUser(identity) = identity {
if let Some(federated) = self.federated() {
for federated in federated.iter() {
if federated == identity.user_name() {
return true;
}
}
}
}
}
PrincipalSource::Service => {
if let PrincipalIdentity::Service(identity) = identity {
if let Some(services) = self.service() {
for service in services.iter() {
if service == identity.global_dns_name().as_str()
|| service == identity.regional_dns_name().as_str()
{
return true;
}
}
}
}
}
}
}
false
}
}
#[cfg(test)]
mod tests {
use {
super::SpecifiedPrincipal,
scratchstack_aws_principal::{
CanonicalUser, FederatedUser, Principal as PrincipalActor, PrincipalIdentity, Service, User,
},
std::str::FromStr,
};
#[test_log::test]
fn test_deserialize_basic1() {
let sp = SpecifiedPrincipal::from_str(
r#"
{
"AWS": ["123456789012", "arn:aws:iam::123456789012:user/dacut"],
"CanonicalUser": ["df22d4799ef444d6434c676951d8b390145f2fc5f9107140d0e4b733ad40516d"],
"Federated": ["dacut@kanga.org"],
"Service": ["ec2.amazonaws.com", "lambda.amazonaws.com"]
}
"#,
)
.unwrap();
assert!(sp.aws.is_some());
assert!(sp.canonical_user.is_some());
assert!(sp.federated.is_some());
assert!(sp.service.is_some());
}
#[test_log::test]
fn test_matches() {
let sp = SpecifiedPrincipal::from_str(
r#"
{
"AWS": ["arn:aws:iam::123456789012:user/dacut"],
"CanonicalUser": ["df22d4799ef444d6434c676951d8b390145f2fc5f9107140d0e4b733ad40516d"],
"Federated": ["dacut@kanga.org"],
"Service": ["ec2.amazonaws.com", "lambda.amazonaws.com"]
}
"#,
)
.unwrap();
let user = User::new("aws", "123456789012", "/", "dacut").unwrap();
let canonical_user =
CanonicalUser::new("df22d4799ef444d6434c676951d8b390145f2fc5f9107140d0e4b733ad40516d").unwrap();
let federated_user = FederatedUser::new("aws", "123456789012", "dacut@kanga.org").unwrap();
let lambda_regional = Service::new("lambda", Some("us-east-1".to_string()), "amazonaws.com").unwrap();
assert!(sp.matches(&PrincipalActor::from(vec![PrincipalIdentity::from(user.clone())])));
assert!(sp.matches(&PrincipalActor::from(vec![PrincipalIdentity::from(canonical_user.clone())])));
assert!(sp.matches(&PrincipalActor::from(vec![PrincipalIdentity::from(federated_user.clone())])));
assert!(sp.matches(&PrincipalActor::from(vec![PrincipalIdentity::from(lambda_regional.clone())])));
let user_wrong_partition = User::new("aws-us-gov", "123456789012", "/", "dacut").unwrap();
assert!(!sp.matches(&PrincipalActor::from(vec![PrincipalIdentity::from(user_wrong_partition)])));
let wrong_canonical_user =
CanonicalUser::new("0000000000000000000000000000000000000000000000000000000000000000").unwrap();
assert!(!sp.matches(&PrincipalActor::from(vec![PrincipalIdentity::from(wrong_canonical_user)])));
let wrong_federated_user = FederatedUser::new("aws", "123456789012", "evildoer@kanga.org").unwrap();
assert!(!sp.matches(&PrincipalActor::from(vec![PrincipalIdentity::from(wrong_federated_user)])));
let wrong_service = Service::new("s3", None, "amazonaws.com").unwrap();
assert!(!sp.matches(&PrincipalActor::from(vec![PrincipalIdentity::from(wrong_service)])));
let empty = SpecifiedPrincipal::builder().build().unwrap();
assert!(!empty.matches(&PrincipalActor::from(vec![PrincipalIdentity::from(user)])));
assert!(!empty.matches(&PrincipalActor::from(vec![PrincipalIdentity::from(canonical_user)])));
assert!(!empty.matches(&PrincipalActor::from(vec![PrincipalIdentity::from(federated_user)])));
assert!(!empty.matches(&PrincipalActor::from(vec![PrincipalIdentity::from(lambda_regional)])));
}
}
