fix pulling from public repositories when not logged in

docs/todo.md

@@ -14,4 +14,4 @@
 - [ ] fix repository list
   - [ ] its not responding with anything
   - [ ] make sure private repositories dont show up
-- [ ] fix pulling from public repositories when not logged in
+- [x] fix pulling from public repositories when not logged in

src/api/blobs.rs

@@ -9,17 +9,24 @@ use tokio_util::io::ReaderStream;
 
 use crate::app_state::AppState;
 use crate::auth::access_denied_response;
+use crate::database::Database;
 use crate::dto::RepositoryVisibility;
 use crate::dto::user::{Permission, UserAuth};
 use crate::error::AppError;
 
-pub async fn digest_exists_head(Path((name, layer_digest)): Path<(String, String)>, state: State<Arc<AppState>>, Extension(auth): Extension<UserAuth>) -> Result<Response, AppError> {
+pub async fn digest_exists_head(Path((name, layer_digest)): Path<(String, String)>, state: State<Arc<AppState>>, auth: Option<UserAuth>) -> Result<Response, AppError> {
     // Check if the user has permission to pull, or that the repository is public
-    let mut auth_driver = state.auth_checker.lock().await;
-    if !auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PULL, Some(RepositoryVisibility::Public)).await? {
-        return Ok(access_denied_response(&state.config));
+    if let Some(auth) = auth {
+        let mut auth_driver = state.auth_checker.lock().await;
+        if !auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PULL, Some(RepositoryVisibility::Public)).await? {
+            return Ok(access_denied_response(&state.config));
+        }
+    } else {
+        let database = &state.database;
+        if database.get_repository_visibility(&name).await? != Some(RepositoryVisibility::Public) {
+            return Ok(access_denied_response(&state.config));
+        }
     }
-    drop(auth_driver);
 
     let storage = state.storage.lock().await;
 
@@ -38,13 +45,19 @@ pub async fn digest_exists_head(Path((name, layer_digest)): Path<(String, String
     Ok(StatusCode::NOT_FOUND.into_response())
 }
 
-pub async fn pull_digest_get(Path((name, layer_digest)): Path<(String, String)>, state: State<Arc<AppState>>, Extension(auth): Extension<UserAuth>) -> Result<Response, AppError> {
+pub async fn pull_digest_get(Path((name, layer_digest)): Path<(String, String)>, state: State<Arc<AppState>>, auth: Option<UserAuth>) -> Result<Response, AppError> {
     // Check if the user has permission to pull, or that the repository is public
-    let mut auth_driver = state.auth_checker.lock().await;
-    if !auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PULL, Some(RepositoryVisibility::Public)).await? {
-        return Ok(access_denied_response(&state.config));
+    if let Some(auth) = auth {
+        let mut auth_driver = state.auth_checker.lock().await;
+        if !auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PULL, Some(RepositoryVisibility::Public)).await? {
+            return Ok(access_denied_response(&state.config));
+        }
+    } else {
+        let database = &state.database;
+        if database.get_repository_visibility(&name).await? != Some(RepositoryVisibility::Public) {
+            return Ok(access_denied_response(&state.config));
+        }
     }
-    drop(auth_driver);
 
     let storage = state.storage.lock().await;
 

src/api/manifests.rs

@@ -16,7 +16,7 @@ use crate::dto::manifest::Manifest;
 use crate::dto::user::{UserAuth, Permission};
 use crate::error::AppError;
 
-pub async fn upload_manifest_put(Path((name, reference)): Path<(String, String)>, state: State<Arc<AppState>>, Extension(auth): Extension<UserAuth>, body: String) -> Result<Response, AppError> {
+pub async fn upload_manifest_put(Path((name, reference)): Path<(String, String)>, state: State<Arc<AppState>>, auth: UserAuth, body: String) -> Result<Response, AppError> {
     let mut auth_driver = state.auth_checker.lock().await;
     if !auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PUSH, None).await? {
         return Ok(access_denied_response(&state.config));
@@ -64,13 +64,19 @@ pub async fn upload_manifest_put(Path((name, reference)): Path<(String, String)>
     }
 }
 
-pub async fn pull_manifest_get(Path((name, reference)): Path<(String, String)>, state: State<Arc<AppState>>, Extension(auth): Extension<UserAuth>) -> Result<Response, AppError> {
+pub async fn pull_manifest_get(Path((name, reference)): Path<(String, String)>, state: State<Arc<AppState>>, auth: Option<UserAuth>) -> Result<Response, AppError> {
     // Check if the user has permission to pull, or that the repository is public
-    let mut auth_driver = state.auth_checker.lock().await;
-    if !auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PULL, Some(RepositoryVisibility::Public)).await? {
-        return Ok(access_denied_response(&state.config));
+    if let Some(auth) = auth {
+        let mut auth_driver = state.auth_checker.lock().await;
+        if !auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PULL, Some(RepositoryVisibility::Public)).await? {
+            return Ok(access_denied_response(&state.config));
+        }
+    } else {
+        let database = &state.database;
+        if database.get_repository_visibility(&name).await? != Some(RepositoryVisibility::Public) {
+            return Ok(access_denied_response(&state.config));
+        }
     }
-    drop(auth_driver);
     
     let database = &state.database;
     let digest = match Digest::is_digest(&reference) {
@@ -107,13 +113,20 @@ pub async fn pull_manifest_get(Path((name, reference)): Path<(String, String)>,
     ).into_response())
 }
 
-pub async fn manifest_exists_head(Path((name, reference)): Path<(String, String)>, state: State<Arc<AppState>>, Extension(auth): Extension<UserAuth>) -> Result<Response, AppError> {
+pub async fn manifest_exists_head(Path((name, reference)): Path<(String, String)>, state: State<Arc<AppState>>, auth: Option<UserAuth>) -> Result<Response, AppError> {
     // Check if the user has permission to pull, or that the repository is public
-    let mut auth_driver = state.auth_checker.lock().await;
-    if !auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PULL, Some(RepositoryVisibility::Public)).await? {
-        return Ok(access_denied_response(&state.config));
+    if let Some(auth) = auth {
+        let mut auth_driver = state.auth_checker.lock().await;
+        if !auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PULL, Some(RepositoryVisibility::Public)).await? {
+            return Ok(access_denied_response(&state.config));
+        }
+        drop(auth_driver);
+    } else {
+        let database = &state.database;
+        if database.get_repository_visibility(&name).await? != Some(RepositoryVisibility::Public) {
+            return Ok(access_denied_response(&state.config));
+        }
     }
-    drop(auth_driver);
     
     // Get the digest from the reference path.
     let database = &state.database;
@@ -148,7 +161,7 @@ pub async fn manifest_exists_head(Path((name, reference)): Path<(String, String)
     ).into_response())
 }
 
-pub async fn delete_manifest(Path((name, reference)): Path<(String, String)>, state: State<Arc<AppState>>, Extension(auth): Extension<UserAuth>) -> Result<Response, AppError> {
+pub async fn delete_manifest(Path((name, reference)): Path<(String, String)>, state: State<Arc<AppState>>, auth: UserAuth) -> Result<Response, AppError> {
     let mut auth_driver = state.auth_checker.lock().await;
     if !auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PUSH, None).await? {
         return Ok(access_denied_response(&state.config));

src/api/mod.rs

@@ -1,6 +1,5 @@
 use std::sync::Arc;
 
-use axum::Extension;
 use axum::extract::State;
 use axum::response::{IntoResponse, Response};
 use axum::http::{StatusCode, HeaderName};
@@ -18,7 +17,7 @@ use crate::dto::user::UserAuth;
 
 /// https://docs.docker.com/registry/spec/api/#api-version-check
 /// full endpoint: `/v2/`
-pub async fn version_check(Extension(_auth): Extension<UserAuth>, _state: State<Arc<AppState>>) -> Response {
+pub async fn version_check(_state: State<Arc<AppState>>) -> Response {
     (
         StatusCode::OK,
         [( HeaderName::from_static("docker-distribution-api-version"), "registry/2.0" )]

src/api/uploads.rs

@@ -18,7 +18,7 @@ use crate::dto::user::{UserAuth, Permission};
 use crate::error::AppError;
 
 /// Starting an upload
-pub async fn start_upload_post(Path((name, )): Path<(String, )>, Extension(auth): Extension<UserAuth>, state: State<Arc<AppState>>) -> Result<Response, AppError> {
+pub async fn start_upload_post(Path((name, )): Path<(String, )>, auth: UserAuth, state: State<Arc<AppState>>) -> Result<Response, AppError> {
     let mut auth_driver = state.auth_checker.lock().await;
     if auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PUSH, None).await? {
         debug!("Upload requested");
@@ -38,7 +38,7 @@ pub async fn start_upload_post(Path((name, )): Path<(String, )>, Extension(auth)
     Ok(access_denied_response(&state.config))
 }
 
-pub async fn chunked_upload_layer_patch(Path((name, layer_uuid)): Path<(String, String)>, Extension(auth): Extension<UserAuth>, state: State<Arc<AppState>>, mut body: BodyStream) -> Result<Response, AppError> {
+pub async fn chunked_upload_layer_patch(Path((name, layer_uuid)): Path<(String, String)>, auth: UserAuth, state: State<Arc<AppState>>, mut body: BodyStream) -> Result<Response, AppError> {
     let mut auth_driver = state.auth_checker.lock().await;
     if !auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PUSH, None).await? {
         return Ok(access_denied_response(&state.config));
@@ -97,7 +97,7 @@ pub async fn chunked_upload_layer_patch(Path((name, layer_uuid)): Path<(String,
     ).into_response())
 }
 
-pub async fn finish_chunked_upload_put(Path((name, layer_uuid)): Path<(String, String)>, Query(query): Query<HashMap<String, String>>, Extension(auth): Extension<UserAuth>, state: State<Arc<AppState>>, body: Bytes) -> Result<Response, AppError> {
+pub async fn finish_chunked_upload_put(Path((name, layer_uuid)): Path<(String, String)>, Query(query): Query<HashMap<String, String>>, auth: UserAuth, state: State<Arc<AppState>>, body: Bytes) -> Result<Response, AppError> {
     let mut auth_driver = state.auth_checker.lock().await;
     if !auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PUSH, None).await? {
         return Ok(access_denied_response(&state.config));
@@ -126,7 +126,7 @@ pub async fn finish_chunked_upload_put(Path((name, layer_uuid)): Path<(String, S
     ).into_response())
 }
 
-pub async fn cancel_upload_delete(Path((name, layer_uuid)): Path<(String, String)>, state: State<Arc<AppState>>, Extension(auth): Extension<UserAuth>) -> Result<Response, AppError> {
+pub async fn cancel_upload_delete(Path((name, layer_uuid)): Path<(String, String)>, state: State<Arc<AppState>>, auth: UserAuth) -> Result<Response, AppError> {
     let mut auth_driver = state.auth_checker.lock().await;
     if !auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PUSH, None).await? {
         return Ok(access_denied_response(&state.config));
@@ -140,7 +140,7 @@ pub async fn cancel_upload_delete(Path((name, layer_uuid)): Path<(String, String
     Ok(StatusCode::OK.into_response())
 }
 
-pub async fn check_upload_status_get(Path((name, layer_uuid)): Path<(String, String)>, state: State<Arc<AppState>>, Extension(auth): Extension<UserAuth>) -> Result<Response, AppError> {
+pub async fn check_upload_status_get(Path((name, layer_uuid)): Path<(String, String)>, state: State<Arc<AppState>>, auth: UserAuth) -> Result<Response, AppError> {
     let mut auth_driver = state.auth_checker.lock().await;
     if !auth_driver.user_has_permission(auth.user.username, name.clone(), Permission::PUSH, None).await? {
         return Ok(access_denied_response(&state.config));

src/database/mod.rs

@@ -410,9 +410,20 @@ impl Database for Pool<Sqlite> {
 
     async fn verify_user_login(&self, email: String, password: String) -> anyhow::Result<bool> {
         let email = email.to_lowercase();
-        let row: (String, ) = sqlx::query_as("SELECT password_hash FROM user_logins WHERE email = ?")
+
+        let row: (String,) = match sqlx::query_as("SELECT password_hash FROM user_logins WHERE email = ?")
             .bind(email)
-            .fetch_one(self).await?;
+            .fetch_one(self).await {
+            Ok(row) => row,
+            Err(e) => match e {
+                sqlx::Error::RowNotFound => {
+                    return Ok(false)
+                },
+                _ => {
+                    return Err(anyhow::Error::new(e));
+                }
+            }
+        };
 
         Ok(bcrypt::verify(password, &row.0)?)
     }

src/database/schemas/schema.sql

@@ -71,7 +71,7 @@ CREATE TABLE IF NOT EXISTS user_tokens (
     created_at BIGINT NOT NULL
 );
 
--- create admin user
+-- create admin user (password is 'admin')
 INSERT OR IGNORE INTO users (username, email, login_source) VALUES ('admin', 'admin@example.com', 0);
-INSERT OR IGNORE INTO user_logins (email, password_hash, password_salt) VALUES ('admin@example.com', '$2y$05$ZBnzGzctboHkUDMr4W02jOaUuPwmRC2OgWKKBxqiQsYv53OkUrfO6', 'x5ECk0jUmOSfBWxW52wsyO');
+INSERT OR IGNORE INTO user_logins (email, password_hash, password_salt) VALUES ('admin@example.com', '$2y$05$v9ND7dQKvfkOtY4XpnKVaOpvV0F5RDnW1Ec.nfkZ0vmEjLX5D5S8e', 'x5ECk0jUmOSfBWxW52wsyO');
 INSERT OR IGNORE INTO user_registry_permissions (email, user_type) VALUES ('admin@example.com', 1);

src/dto/user.rs

@@ -1,7 +1,12 @@
-use std::collections::HashMap;
+use std::{collections::HashMap, sync::Arc};
 
+use async_trait::async_trait;
+use axum::{http::{StatusCode, header, HeaderName, HeaderMap, Request, request::Parts}, extract::{FromRequest, FromRequestParts}};
 use bitflags::bitflags;
 use chrono::{DateTime, Utc};
+use tracing::debug;
+
+use crate::{app_state::AppState, database::Database};
 
 use super::RepositoryVisibility;
 
@@ -72,6 +77,51 @@ impl UserAuth {
     }
 }
 
+#[async_trait]
+impl FromRequestParts<Arc<AppState>> for UserAuth {
+    type Rejection = (StatusCode, HeaderMap);
+
+    async fn from_request_parts(parts: &mut Parts, state: &Arc<AppState>) -> Result<Self, Self::Rejection> {
+        let bearer = format!("Bearer realm=\"{}/auth\"", state.config.url());
+        let mut failure_headers = HeaderMap::new();
+        failure_headers.append(header::WWW_AUTHENTICATE, bearer.parse().unwrap());
+        failure_headers.append(HeaderName::from_static("docker-distribution-api-version"), "registry/2.0".parse().unwrap());
+
+        let auth = String::from(
+            parts.headers
+                .get(header::AUTHORIZATION)
+                .ok_or((StatusCode::UNAUTHORIZED, failure_headers.clone()))?
+                .to_str()
+                .map_err(|_| (StatusCode::UNAUTHORIZED, failure_headers.clone()))?
+        );
+
+        let token = match auth.split_once(' ') {
+            Some((auth, token)) if auth == "Bearer" => token,
+            // This line would allow empty tokens
+            //_ if auth == "Bearer" => Ok(AuthToken(None)),
+            _ => return Err( (StatusCode::UNAUTHORIZED, failure_headers) ),
+        };
+
+        // If the token is not valid, return an unauthorized response
+        let database = &state.database;
+        if let Ok(Some(user)) = database.verify_user_token(token.to_string()).await {
+            debug!("Authenticated user through middleware: {}", user.user.username);
+
+            Ok(user)
+        } else {
+            let bearer = format!("Bearer realm=\"{}/auth\"", state.config.url());
+            let mut headers = HeaderMap::new();
+            headers.insert(header::WWW_AUTHENTICATE, bearer.parse().unwrap());
+            headers.insert(HeaderName::from_static("docker-distribution-api-version"), "registry/2.0".to_string().parse().unwrap());
+
+            Err((
+                StatusCode::UNAUTHORIZED,
+                headers
+            ))
+        }
+    }
+}
+
 bitflags! {
     #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
     pub struct Permission: u32 {

src/main.rs

@@ -102,7 +102,7 @@ async fn main() -> anyhow::Result<()> {
 
     let state = Arc::new(AppState::new(pool, storage_driver, config, auth_driver));
    
-    let auth_middleware = axum::middleware::from_fn_with_state(state.clone(), auth::require_auth);
+    //let auth_middleware = axum::middleware::from_fn_with_state(state.clone(), auth::require_auth);
     let path_middleware = axum::middleware::from_fn(change_request_paths);
 
     let app = Router::new()
@@ -129,7 +129,7 @@ async fn main() -> anyhow::Result<()> {
                 .put(api::manifests::upload_manifest_put)
                 .head(api::manifests::manifest_exists_head)
                 .delete(api::manifests::delete_manifest))
-            .layer(auth_middleware) // require auth for ALL v2 routes
+            //.layer(auth_middleware) // require auth for ALL v2 routes
         )
         .with_state(state)
         .layer(TraceLayer::new_for_http());