Remove unused imports and clippy lint (#2276)

* Fix unused import errors
* Apply clippy get_first lint
* Add contributor

---------

Co-authored-by: James Hodgkinson <james@terminaloutcomes.com>

CONTRIBUTORS.md

@@ -32,6 +32,7 @@
 - Samuel Cabrero (scabrero)
 - philipcristiano
 - Jianchen Zhao (bolu61)
+- Allan Zhang (allan2)
 
 ## Acknowledgements
 

libs/client/src/sync_account.rs

@@ -40,7 +40,7 @@ impl KanidmClient {
             format!("/v1/sync_account/{}/_attr/sync_credential_portal", id).as_str(),
         )
         .await
-        .map(|values: Vec<Url>| values.get(0).cloned())
+        .map(|values: Vec<Url>| values.first().cloned())
     }
 
     pub async fn idm_sync_account_set_yield_attributes(

libs/crypto/src/lib.rs

@@ -83,7 +83,7 @@ pub enum CryptoError {
 impl From<OpenSSLErrorStack> for CryptoError {
     fn from(ossl_err: OpenSSLErrorStack) -> Self {
         error!(?ossl_err);
-        let code = ossl_err.errors().get(0).map(|e| e.code()).unwrap_or(0);
+        let code = ossl_err.errors().first().map(|e| e.code()).unwrap_or(0);
         #[cfg(not(target_family = "windows"))]
         let result = CryptoError::OpenSSL(code);
 

server/lib/src/credential/mod.rs

@@ -372,7 +372,7 @@ impl Credential {
     pub fn try_from_repl_v1(rc: &ReplCredV1) -> Result<(String, Self), OperationError> {
         match rc {
             ReplCredV1::TmpWn { tag, set } => {
-                let m_uuid: Option<Uuid> = set.get(0).map(|v| v.uuid);
+                let m_uuid: Option<Uuid> = set.first().map(|v| v.uuid);
 
                 let v_webauthn = set
                     .iter()

server/lib/src/idm/authsession.rs

@@ -3,7 +3,6 @@
 //! factor to assert that the user is legitimate. This also contains some
 //! support code for asynchronous task execution.
 use std::collections::BTreeMap;
-pub use std::collections::BTreeSet as Set;
 use std::convert::TryFrom;
 use std::fmt;
 use std::time::Duration;
@@ -1237,7 +1236,6 @@ impl AuthSession {
 
 #[cfg(test)]
 mod tests {
-    pub use std::collections::BTreeSet as Set;
     use std::str::FromStr;
     use std::time::Duration;
 

server/lib/src/idm/credupdatesession.rs

@@ -372,7 +372,7 @@ impl<'a> IdmServerProxyWriteTransaction<'a> {
                 &[entry],
             )?;
 
-        let eperm = effective_perms.get(0).ok_or_else(|| {
+        let eperm = effective_perms.first().ok_or_else(|| {
             error!("Effective Permission check returned no results");
             OperationError::InvalidState
         })?;
@@ -485,7 +485,7 @@ impl<'a> IdmServerProxyWriteTransaction<'a> {
                     &[entry],
                 )?;
 
-            let eperm = effective_perms.get(0).ok_or_else(|| {
+            let eperm = effective_perms.first().ok_or_else(|| {
                 admin_error!("Effective Permission check returned no results");
                 OperationError::InvalidState
             })?;
@@ -2782,7 +2782,7 @@ mod tests {
         assert!(c_status.passkeys.len() == 1);
 
         // Get the UUID of the passkey here.
-        let pk_uuid = c_status.passkeys.get(0).map(|pkd| pkd.uuid).unwrap();
+        let pk_uuid = c_status.passkeys.first().map(|pkd| pkd.uuid).unwrap();
 
         // Commit
         drop(cutxn);

server/lib/src/idm/scim.rs

@@ -251,7 +251,7 @@ impl<'a> IdmServerProxyWriteTransaction<'a> {
             .get_accesscontrols()
             .effective_permission_check(&sfe.ident, Some(BTreeSet::default()), &[entry])?;
 
-        let eperm = effective_perms.get(0).ok_or_else(|| {
+        let eperm = effective_perms.first().ok_or_else(|| {
             admin_error!("Effective Permission check returned no results");
             OperationError::InvalidState
         })?;
@@ -382,7 +382,7 @@ impl<'a> IdmServerProxyWriteTransaction<'a> {
             .get_accesscontrols()
             .effective_permission_check(&ste.ident, Some(BTreeSet::default()), &[entry])?;
 
-        let eperm = effective_perms.get(0).ok_or_else(|| {
+        let eperm = effective_perms.first().ok_or_else(|| {
             admin_error!("Effective Permission check returned no results");
             OperationError::InvalidState
         })?;
@@ -2153,7 +2153,7 @@ mod tests {
             // Should be none as the entry was masked by being recycled.
             .map(|entries| {
                 assert!(entries.len() == 1);
-                let ent = entries.get(0).unwrap();
+                let ent = entries.first().unwrap();
                 ent.mask_recycled_ts().is_none()
             })
             .unwrap_or(false));
@@ -2348,7 +2348,7 @@ mod tests {
             // Should be none as the entry was masked by being recycled.
             .map(|entries| {
                 assert!(entries.len() == 1);
-                let ent = entries.get(0).unwrap();
+                let ent = entries.first().unwrap();
                 ent.mask_recycled_ts().is_none()
             })
             .unwrap_or(false));
@@ -2432,7 +2432,7 @@ mod tests {
             // Should be none as the entry was masked by being recycled.
             .map(|entries| {
                 assert!(entries.len() == 1);
-                let ent = entries.get(0).unwrap();
+                let ent = entries.first().unwrap();
                 ent.mask_recycled_ts().is_none()
             })
             .unwrap_or(false));
@@ -2447,7 +2447,7 @@ mod tests {
             // Should be none as the entry was masked by being recycled.
             .map(|entries| {
                 assert!(entries.len() == 1);
-                let ent = entries.get(0).unwrap();
+                let ent = entries.first().unwrap();
                 ent.mask_recycled_ts().is_none()
             })
             .unwrap_or(false));

server/lib/src/idm/server.rs

@@ -926,7 +926,7 @@ impl<'a> IdmServerAuthTransaction<'a> {
 
     pub fn get_origin(&self) -> &Url {
         #[allow(clippy::unwrap_used)]
-        self.webauthn.get_allowed_origins().get(0).unwrap()
+        self.webauthn.get_allowed_origins().first().unwrap()
     }
 
     #[instrument(level = "trace", skip(self))]
@@ -1544,7 +1544,7 @@ impl<'a> IdmServerProxyWriteTransaction<'a> {
 
     pub fn get_origin(&self) -> &Url {
         #[allow(clippy::unwrap_used)]
-        self.webauthn.get_allowed_origins().get(0).unwrap()
+        self.webauthn.get_allowed_origins().first().unwrap()
     }
 
     fn check_password_quality(

server/web_ui/login_flows/src/oauth2.rs

@@ -1,10 +1,7 @@
 use gloo::console;
 use kanidm_proto::constants::uri::{OAUTH2_AUTHORISE, OAUTH2_AUTHORISE_PERMIT};
 use kanidm_proto::constants::{APPLICATION_JSON, KOPID};
-pub use kanidm_proto::oauth2::{
-    AccessTokenRequest, AccessTokenResponse, AuthorisationRequest, AuthorisationResponse,
-    CodeChallengeMethod, ErrorResponse,
-};
+pub use kanidm_proto::oauth2::{AuthorisationRequest, AuthorisationResponse};
 use kanidmd_web_ui_shared::constants::{CONTENT_TYPE, CSS_ALERT_DANGER, URL_OAUTH2};
 use kanidmd_web_ui_shared::utils::{do_alert_error, do_footer, window};
 use kanidmd_web_ui_shared::{

tools/cli/src/cli/session.rs

@@ -259,7 +259,7 @@ async fn process_auth_state(
             {
                 #[allow(clippy::expect_used)]
                 allowed
-                    .get(0)
+                    .first()
                     .expect("can not fail - bounds already checked.")
             }
             _ => {
@@ -387,7 +387,7 @@ impl LoginOpt {
             {
                 #[allow(clippy::expect_used)]
                 mechs
-                    .get(0)
+                    .first()
                     .expect("can not fail - bounds already checked.")
             }
             _ => {

unix_integration/nss_kanidm/src/lib.rs

@@ -19,6 +19,3 @@ extern crate lazy_static;
 
 #[cfg(target_family = "unix")]
 mod implementation;
-
-#[cfg(target_family = "unix")]
-pub use implementation::*;