Squashed commit for: generic package auth

Allows basic auth and deploy token  on all generic packages endpoints

changelogs/unreleased/276965-allow-basic-auth-for-generic-packages.yml

+---
+title: "Allow HTTP Basic Auth and deploy token authentication for generic packages"
+merge_request: 48540
+author: Moshe Katz @kohenkatz
+type: added

doc/user/packages/generic_packages/index.md

@@ -20,8 +20,14 @@ Publish generic files, like release binaries, in your project’s Package Regist
 
 ## Authenticate to the Package Registry
 
-To authenticate to the Package Registry, you need either a [personal access token](../../../api/README.md#personalproject-access-tokens)
-or [CI job token](../../../api/README.md#gitlab-ci-job-token).
+To authenticate to the Package Registry, you need either a [personal access token](../../../api/README.md#personalproject-access-tokens),
+[CI job token](../../../api/README.md#gitlab-ci-job-token), or [deploy token](../../project/deploy_tokens/index.md).
+
+In addition to the standard API authentication mechanisms, the generic package
+API allows authentication with HTTP Basic authentication for use with tools that
+do not support the other available mechanisms. The `user-id` is not checked and
+may be any value, and the `password` must be either a [personal access token](../../../api/README.md#personalproject-access-tokens),
+a [CI job token](../../../api/README.md#gitlab-ci-job-token), or a [deploy token](../../project/deploy_tokens/index.md).
 
 ## Publish a package file
 
@@ -31,7 +37,7 @@ If a package with the same name, version, and filename already exists, it is als
 
 Prerequisites:
 
-- You need to [authenticate with the API](../../../api/README.md#authentication).
+- You need to [authenticate with the API](../../../api/README.md#authentication). If authenticating with a deploy token, it must be configured with the `write_package_registry` scope.
 
 ```plaintext
 PUT /projects/:id/packages/generic/:package_name/:package_version/:file_name
@@ -70,7 +76,7 @@ If multiple packages have the same name, version, and filename, then the most re
 
 Prerequisites:
 
-- You need to [authenticate with the API](../../../api/README.md#authentication).
+- You need to [authenticate with the API](../../../api/README.md#authentication). If authenticating with a deploy token, it must be configured with the `read_package_registry` and/or `write_package_registry` scope.
 
 ```plaintext
 GET /projects/:id/packages/generic/:package_name/:package_version/:file_name
@@ -92,6 +98,13 @@ curl --header "PRIVATE-TOKEN: <your_access_token>" \
      "https://gitlab.example.com/api/v4/projects/24/packages/generic/my_package/0.0.1/file.txt"
 ```
 
+Example request that uses HTTP Basic authentication:
+
+```shell
+curl --user "user:<your_access_token>" \
+     https://gitlab.example.com/api/v4/projects/24/packages/generic/my_package/0.0.1/file.txt
+```
+
 ## Publish a generic package by using CI/CD
 
 To work with generic packages in [GitLab CI/CD](../../../ci/README.md), you can use

lib/api/generic_packages.rb

@@ -21,7 +21,7 @@ module API
     end
 
     resource :projects, requirements: API::NAMESPACE_OR_PROJECT_REQUIREMENTS do
-      route_setting :authentication, job_token_allowed: true
+      route_setting :authentication, job_token_allowed: true, basic_auth_personal_access_token: true, deploy_token_allowed: true
 
       namespace ':id/packages/generic' do
         namespace ':package_name/*package_version/:file_name', requirements: GENERIC_PACKAGES_REQUIREMENTS do
@@ -29,7 +29,7 @@ module API
             detail 'This feature was introduced in GitLab 13.5'
           end
 
-          route_setting :authentication, job_token_allowed: true
+          route_setting :authentication, job_token_allowed: true, basic_auth_personal_access_token: true, deploy_token_allowed: true
 
           params do
             requires :package_name, type: String, desc: 'Package name', regexp: Gitlab::Regex.generic_package_name_regex, file_path: true
@@ -52,7 +52,7 @@ module API
             requires :file, type: ::API::Validations::Types::WorkhorseFile, desc: 'The package file to be published (generated by Multipart middleware)'
           end
 
-          route_setting :authentication, job_token_allowed: true
+          route_setting :authentication, job_token_allowed: true, basic_auth_personal_access_token: true, deploy_token_allowed: true
 
           put do
             authorize_upload!(project)
@@ -82,7 +82,7 @@ module API
             requires :file_name, type: String, desc: 'Package file name', regexp: Gitlab::Regex.generic_package_file_name_regex, file_path: true
           end
 
-          route_setting :authentication, job_token_allowed: true
+          route_setting :authentication, job_token_allowed: true, basic_auth_personal_access_token: true, deploy_token_allowed: true
 
           get do
             authorize_read_package!(project)