mirror of
https://github.com/nitnelave/lldap.git
synced 2023-04-12 14:25:13 +00:00
ldap: handle full scope searches
Nextcloud searches for users by specifying the entire user DN as the scope. This commit adds support for these specific scopes.
This commit is contained in:
Valentin Tolmer
parent
da186fab38
commit
349aea5a03
@ -48,6 +48,49 @@ fn parse_distinguished_name(dn: &str) -> Result<Vec<(String, String)>> {
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.collect()
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}
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#[derive(Debug)]
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enum SearchScope {
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Global,
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Users,
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Groups,
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User(LdapFilter),
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Group(LdapFilter),
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Unknown,
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Invalid,
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}
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fn get_search_scope(base_dn: &[(String, String)], dn_parts: &[(String, String)]) -> SearchScope {
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let base_dn_len = base_dn.len();
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if !is_subtree(dn_parts, base_dn) {
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SearchScope::Invalid
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} else if dn_parts.len() == base_dn_len {
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SearchScope::Global
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} else if dn_parts.len() == base_dn_len + 1
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&& dn_parts[0] == ("ou".to_string(), "people".to_string())
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{
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SearchScope::Users
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} else if dn_parts.len() == base_dn_len + 1
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&& dn_parts[0] == ("ou".to_string(), "groups".to_string())
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{
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SearchScope::Groups
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} else if dn_parts.len() == base_dn_len + 2
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&& dn_parts[1] == ("ou".to_string(), "people".to_string())
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{
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SearchScope::User(LdapFilter::Equality(
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dn_parts[0].0.clone(),
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dn_parts[0].1.clone(),
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))
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} else if dn_parts.len() == base_dn_len + 2
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&& dn_parts[1] == ("ou".to_string(), "groups".to_string())
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{
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SearchScope::Group(LdapFilter::Equality(
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dn_parts[0].0.clone(),
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dn_parts[0].1.clone(),
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))
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} else {
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SearchScope::Unknown
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}
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}
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fn get_group_id_from_distinguished_name(
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dn: &str,
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base_tree: &[(String, String)],
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@ -582,36 +625,50 @@ impl<Backend: BackendHandler + LoginHandler + OpaqueHandler> LdapHandler<Backend
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)]
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}
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};
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if !is_subtree(&dn_parts, &self.base_dn) {
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// Search path is not in our tree, just return an empty success.
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warn!(
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"The specified search tree {:?} is not under the common subtree {:?}",
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&dn_parts, &self.base_dn
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);
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return vec![make_search_success()];
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}
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let mut results = Vec::new();
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let mut got_match = false;
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if dn_parts.len() == self.base_dn.len()
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|| (dn_parts.len() == self.base_dn.len() + 1
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&& dn_parts[0] == ("ou".to_string(), "people".to_string()))
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{
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got_match = true;
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results.extend(self.get_user_list(request, &user_filter).await);
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}
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if dn_parts.len() == self.base_dn.len()
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|| (dn_parts.len() == self.base_dn.len() + 1
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&& dn_parts[0] == ("ou".to_string(), "groups".to_string()))
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{
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got_match = true;
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results.extend(self.get_groups_list(request, &user_filter).await);
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}
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if !got_match {
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warn!(
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r#"The requested search tree "{}" matches neither the user subtree "ou=people,{}" nor the group subtree "ou=groups,{}""#,
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&request.base, &self.base_dn_str, &self.base_dn_str
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);
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}
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let scope = get_search_scope(&self.base_dn, &dn_parts);
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let get_user_list = || async {
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self.get_user_list(&request.filter, &request.attrs, &request.base, &user_filter)
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.await
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};
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let get_group_list = || async {
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self.get_groups_list(&request.filter, &request.attrs, &request.base, &user_filter)
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.await
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};
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let mut results = match scope {
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SearchScope::Global => {
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let mut results = Vec::new();
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results.extend(get_user_list().await);
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results.extend(get_group_list().await);
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results
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}
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SearchScope::Users => get_user_list().await,
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SearchScope::Groups => get_group_list().await,
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SearchScope::User(filter) => {
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let filter = LdapFilter::And(vec![request.filter.clone(), filter]);
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self.get_user_list(&filter, &request.attrs, &request.base, &user_filter)
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.await
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}
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SearchScope::Group(filter) => {
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let filter = LdapFilter::And(vec![request.filter.clone(), filter]);
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self.get_groups_list(&filter, &request.attrs, &request.base, &user_filter)
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.await
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}
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SearchScope::Unknown => {
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warn!(
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r#"The requested search tree "{}" matches neither the user subtree "ou=people,{}" nor the group subtree "ou=groups,{}""#,
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&request.base, &self.base_dn_str, &self.base_dn_str
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);
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Vec::new()
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}
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SearchScope::Invalid => {
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// Search path is not in our tree, just return an empty success.
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warn!(
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"The specified search tree {:?} is not under the common subtree {:?}",
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&dn_parts, &self.base_dn
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);
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Vec::new()
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}
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};
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if results.is_empty() || matches!(results[results.len() - 1], LdapOp::SearchResultEntry(_))
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{
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results.push(make_search_success());
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@ -621,10 +678,12 @@ impl<Backend: BackendHandler + LoginHandler + OpaqueHandler> LdapHandler<Backend
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async fn get_user_list(
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&self,
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request: &LdapSearchRequest,
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filter: &LdapFilter,
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attributes: &[String],
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base: &str,
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user_filter: &Option<&UserId>,
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) -> Vec<LdapOp> {
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let filters = match self.convert_user_filter(&request.filter) {
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let filters = match self.convert_user_filter(filter) {
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Ok(f) => f,
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Err(e) => {
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return vec![make_search_error(
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@ -639,8 +698,7 @@ impl<Backend: BackendHandler + LoginHandler + OpaqueHandler> LdapHandler<Backend
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UserRequestFilter::And(vec![filters, UserRequestFilter::UserId((*u).clone())])
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}
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};
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let expanded_attributes =
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expand_attribute_wildcards(&request.attrs, ALL_USER_ATTRIBUTE_KEYS);
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let expanded_attributes = expand_attribute_wildcards(attributes, ALL_USER_ATTRIBUTE_KEYS);
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let need_groups = expanded_attributes
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.iter()
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.any(|s| s.to_ascii_lowercase() == "memberof");
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@ -653,7 +711,7 @@ impl<Backend: BackendHandler + LoginHandler + OpaqueHandler> LdapHandler<Backend
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Err(e) => {
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return vec![make_search_error(
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LdapResultCode::Other,
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format!(r#"Error during searching user "{}": {:#}"#, request.base, e),
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format!(r#"Error while searching user "{}": {:#}"#, base, e),
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)]
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}
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};
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@ -681,10 +739,12 @@ impl<Backend: BackendHandler + LoginHandler + OpaqueHandler> LdapHandler<Backend
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async fn get_groups_list(
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&self,
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request: &LdapSearchRequest,
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filter: &LdapFilter,
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attributes: &[String],
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base: &str,
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user_filter: &Option<&UserId>,
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) -> Vec<LdapOp> {
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let filter = match self.convert_group_filter(&request.filter) {
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let filter = match self.convert_group_filter(filter) {
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Ok(f) => f,
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Err(e) => {
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return vec![make_search_error(
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@ -705,7 +765,7 @@ impl<Backend: BackendHandler + LoginHandler + OpaqueHandler> LdapHandler<Backend
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Err(e) => {
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return vec![make_search_error(
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LdapResultCode::Other,
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format!(r#"Error while listing groups "{}": {:#}"#, request.base, e),
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format!(r#"Error while listing groups "{}": {:#}"#, base, e),
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)]
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}
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};
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@ -716,7 +776,7 @@ impl<Backend: BackendHandler + LoginHandler + OpaqueHandler> LdapHandler<Backend
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make_ldap_search_group_result_entry(
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u,
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&self.base_dn_str,
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&request.attrs,
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attributes,
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user_filter,
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&self.ignored_group_attributes,
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)
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@ -1180,6 +1240,37 @@ mod tests {
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);
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}
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#[tokio::test]
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async fn test_search_user_as_scope() {
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let mut mock = MockTestBackendHandler::new();
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mock.expect_list_users()
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.with(
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eq(Some(UserRequestFilter::And(vec![
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UserRequestFilter::And(vec![]),
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UserRequestFilter::UserId(UserId::new("bob")),
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]))),
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eq(false),
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)
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.times(1)
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.return_once(|_, _| Ok(vec![]));
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let mut ldap_handler = setup_bound_readonly_handler(mock).await;
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let request = LdapSearchRequest {
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base: "uid=bob,ou=people,Dc=example,dc=com".to_string(),
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scope: LdapSearchScope::Base,
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aliases: LdapDerefAliases::Never,
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sizelimit: 0,
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timelimit: 0,
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typesonly: false,
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filter: LdapFilter::And(vec![]),
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attrs: vec!["1.1".to_string()],
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};
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assert_eq!(
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ldap_handler.do_search(&request).await,
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vec![make_search_success()],
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);
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}
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#[tokio::test]
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async fn test_bind_invalid_dn() {
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let mock = MockTestBackendHandler::new();
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@ -1573,6 +1664,34 @@ mod tests {
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);
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}
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#[tokio::test]
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async fn test_search_group_as_scope() {
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let mut mock = MockTestBackendHandler::new();
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mock.expect_list_groups()
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.with(eq(Some(GroupRequestFilter::And(vec![
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GroupRequestFilter::And(vec![]),
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GroupRequestFilter::DisplayName("rockstars".to_string()),
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]))))
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.times(1)
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.return_once(|_| Ok(vec![]));
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let mut ldap_handler = setup_bound_readonly_handler(mock).await;
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let request = LdapSearchRequest {
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base: "uid=rockstars,ou=groups,Dc=example,dc=com".to_string(),
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scope: LdapSearchScope::Base,
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aliases: LdapDerefAliases::Never,
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sizelimit: 0,
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timelimit: 0,
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typesonly: false,
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filter: LdapFilter::And(vec![]),
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attrs: vec!["1.1".to_string()],
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};
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assert_eq!(
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ldap_handler.do_search(&request).await,
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vec![make_search_success()],
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);
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}
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#[tokio::test]
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async fn test_search_groups_error() {
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let mut mock = MockTestBackendHandler::new();
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