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use super::profiles::AccessControlCreate;
use crate::filter::FilterValidResolved;
use crate::prelude::*;
use std::collections::BTreeSet;
pub(super) enum CreateResult {
Denied,
Grant,
}
enum IResult {
Denied,
Grant,
Ignore,
}
pub(super) fn apply_create_access<'a>(
ident: &Identity,
related_acp: &'a [(&AccessControlCreate, Filter<FilterValidResolved>)],
entry: &'a Entry<EntryInit, EntryNew>,
) -> CreateResult {
let mut denied = false;
let mut grant = false;
match protected_filter_entry(ident, entry) {
IResult::Denied => denied = true,
IResult::Grant | IResult::Ignore => {}
}
match create_filter_entry(ident, related_acp, entry) {
IResult::Denied => denied = true,
IResult::Grant => grant = true,
IResult::Ignore => {}
}
if denied {
CreateResult::Denied
} else if grant {
CreateResult::Grant
} else {
CreateResult::Denied
}
}
fn create_filter_entry<'a>(
ident: &Identity,
related_acp: &'a [(&AccessControlCreate, Filter<FilterValidResolved>)],
entry: &'a Entry<EntryInit, EntryNew>,
) -> IResult {
match &ident.origin {
IdentType::Internal => {
trace!("Internal operation, bypassing access check");
return IResult::Grant;
}
IdentType::Synch(_) => {
security_critical!("Blocking sync check");
return IResult::Denied;
}
IdentType::User(_) => {}
};
info!(event = %ident, "Access check for create event");
match ident.access_scope() {
AccessScope::ReadOnly | AccessScope::Synchronise => {
security_access!("denied ❌ - identity access scope is not permitted to create");
return IResult::Denied;
}
AccessScope::ReadWrite => {
}
};
let create_attrs: BTreeSet<&str> = entry.get_ava_names().collect();
let create_classes: BTreeSet<&str> = match entry.get_ava_iter_iutf8("class") {
Some(s) => s.collect(),
None => {
admin_error!("Class set failed to build - corrupted entry?");
return IResult::Denied;
}
};
let allow = related_acp.iter().any(|(accr, f_res)| {
if entry.entry_match_no_index(f_res) {
security_access!(?entry, acs = ?accr, "entry matches acs");
let allowed_attrs: BTreeSet<&str> = accr.attrs.iter().map(|s| s.as_str()).collect();
let allowed_classes: BTreeSet<&str> = accr.classes.iter().map(|s| s.as_str()).collect();
if !create_attrs.is_subset(&allowed_attrs) {
security_access!("create_attrs is not a subset of allowed");
security_access!("{:?} !⊆ {:?}", create_attrs, allowed_attrs);
return false;
}
if !create_classes.is_subset(&allowed_classes) {
security_access!("create_classes is not a subset of allowed");
security_access!("{:?} !⊆ {:?}", create_classes, allowed_classes);
return false;
}
security_access!("passed");
true
} else {
trace!(?entry, acs = %accr.acp.name, "entry DOES NOT match acs");
false
}
});
if allow {
IResult::Grant
} else {
IResult::Ignore
}
}
fn protected_filter_entry(ident: &Identity, entry: &Entry<EntryInit, EntryNew>) -> IResult {
match &ident.origin {
IdentType::Internal => {
trace!("Internal operation, protected rules do not apply.");
IResult::Ignore
}
IdentType::Synch(_) => {
security_access!("sync agreements may not directly create entities");
IResult::Denied
}
IdentType::User(_) => {
if let Some(classes) = entry.get_ava_set("class") {
if classes.contains(&PVCLASS_SYNC_OBJECT) {
security_access!("attempt to create with protected class type");
IResult::Denied
} else {
IResult::Ignore
}
} else {
IResult::Ignore
}
}
}
}