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use crate::prelude::*;
use std::collections::BTreeSet;
use super::profiles::AccessControlModify;
use super::AccessResult;
use crate::filter::FilterValidResolved;
use std::sync::Arc;
pub(super) enum ModifyResult<'a> {
Denied,
Grant,
Allow {
pres: BTreeSet<&'a str>,
rem: BTreeSet<&'a str>,
cls: BTreeSet<&'a str>,
},
}
pub(super) fn apply_modify_access<'a>(
ident: &Identity,
related_acp: &'a [(&AccessControlModify, Filter<FilterValidResolved>)],
entry: &'a Arc<EntrySealedCommitted>,
) -> ModifyResult<'a> {
let mut denied = false;
let mut grant = false;
let mut constrain_pres = BTreeSet::default();
let mut allow_pres = BTreeSet::default();
let mut constrain_rem = BTreeSet::default();
let mut allow_rem = BTreeSet::default();
let mut constrain_cls = BTreeSet::default();
let mut allow_cls = BTreeSet::default();
match modify_ident_test(ident) {
AccessResult::Denied => denied = true,
AccessResult::Grant => grant = true,
AccessResult::Ignore => {}
AccessResult::Constrain(mut set) => constrain_pres.append(&mut set),
AccessResult::Allow(mut set) => allow_pres.append(&mut set),
}
if !grant && !denied {
match modify_sync_constrain(ident, entry) {
AccessResult::Denied => denied = true,
AccessResult::Constrain(mut set) => {
constrain_rem.extend(set.iter().copied());
constrain_pres.append(&mut set)
}
AccessResult::Grant |
AccessResult::Allow(_) |
AccessResult::Ignore => {}
}
let scoped_acp: Vec<&AccessControlModify> = related_acp
.iter()
.filter_map(|(acm, f_res)| {
if entry.entry_match_no_index(f_res) {
Some(*acm)
} else {
None
}
})
.collect();
match modify_pres_test(scoped_acp.as_slice()) {
AccessResult::Denied => denied = true,
AccessResult::Grant => {}
AccessResult::Ignore => {}
AccessResult::Constrain(mut set) => constrain_pres.append(&mut set),
AccessResult::Allow(mut set) => allow_pres.append(&mut set),
}
match modify_rem_test(scoped_acp.as_slice()) {
AccessResult::Denied => denied = true,
AccessResult::Grant => {}
AccessResult::Ignore => {}
AccessResult::Constrain(mut set) => constrain_rem.append(&mut set),
AccessResult::Allow(mut set) => allow_rem.append(&mut set),
}
match modify_cls_test(scoped_acp.as_slice()) {
AccessResult::Denied => denied = true,
AccessResult::Grant => {}
AccessResult::Ignore => {}
AccessResult::Constrain(mut set) => constrain_cls.append(&mut set),
AccessResult::Allow(mut set) => allow_cls.append(&mut set),
}
}
if denied {
ModifyResult::Denied
} else if grant {
ModifyResult::Grant
} else {
let allowed_pres = if !constrain_pres.is_empty() {
&constrain_pres & &allow_pres
} else {
allow_pres
};
let allowed_rem = if !constrain_rem.is_empty() {
&constrain_rem & &allow_rem
} else {
allow_rem
};
let allowed_cls = if !constrain_cls.is_empty() {
&constrain_cls & &allow_cls
} else {
allow_cls
};
ModifyResult::Allow {
pres: allowed_pres,
rem: allowed_rem,
cls: allowed_cls,
}
}
}
fn modify_ident_test<'a>(ident: &Identity) -> AccessResult<'a> {
match &ident.origin {
IdentType::Internal => {
trace!("Internal operation, bypassing access check");
return AccessResult::Grant;
}
IdentType::Synch(_) => {
security_critical!("Blocking sync check");
return AccessResult::Denied;
}
IdentType::User(_) => {}
};
info!(event = %ident, "Access check for modify event");
match ident.access_scope() {
AccessScope::ReadOnly | AccessScope::Synchronise => {
security_access!("denied ❌ - identity access scope is not permitted to modify");
return AccessResult::Denied;
}
AccessScope::ReadWrite => {
}
};
AccessResult::Ignore
}
fn modify_pres_test<'a>(scoped_acp: &[&'a AccessControlModify]) -> AccessResult<'a> {
let allowed_pres: BTreeSet<&str> = scoped_acp
.iter()
.flat_map(|acp| acp.presattrs.iter().map(|v| v.as_str()))
.collect();
AccessResult::Allow(allowed_pres)
}
fn modify_rem_test<'a>(scoped_acp: &[&'a AccessControlModify]) -> AccessResult<'a> {
let allowed_rem: BTreeSet<&str> = scoped_acp
.iter()
.flat_map(|acp| acp.remattrs.iter().map(|v| v.as_str()))
.collect();
AccessResult::Allow(allowed_rem)
}
fn modify_cls_test<'a>(scoped_acp: &[&'a AccessControlModify]) -> AccessResult<'a> {
let allowed_classes: BTreeSet<&str> = scoped_acp
.iter()
.flat_map(|acp| acp.classes.iter().map(|v| v.as_str()))
.collect();
AccessResult::Allow(allowed_classes)
}
fn modify_sync_constrain<'a>(
ident: &Identity,
entry: &'a Arc<EntrySealedCommitted>,
) -> AccessResult<'a> {
match &ident.origin {
IdentType::Internal => AccessResult::Ignore,
IdentType::Synch(_) => {
AccessResult::Ignore
}
IdentType::User(_) => {
if let Some(classes) = entry.get_ava_set("class") {
if classes.contains(&PVCLASS_SYNC_OBJECT) {
AccessResult::Constrain(btreeset![
"user_auth_token_session",
"oauth2_session",
"oauth2_consent_scope_map",
"credential_update_intent_token"
])
} else {
AccessResult::Ignore
}
} else {
AccessResult::Ignore
}
}
}
}