Conan project-level API endpoints

Adds a new set of Grape routes for the Conan
package registry that is within the project
resource.

app/models/packages/conan/file_metadatum.rb

@@ -3,6 +3,9 @@
 class Packages::Conan::FileMetadatum < ApplicationRecord
   belongs_to :package_file, inverse_of: :conan_file_metadatum
 
+  DEFAULT_PACKAGE_REVISION = '0'.freeze
+  DEFAULT_RECIPE_REVISION = '0'.freeze
+
   validates :package_file, presence: true
 
   validates :recipe_revision,

app/presenters/packages/conan/package_presenter.rb

@@ -3,6 +3,7 @@
 module Packages
   module Conan
     class PackagePresenter
+      include API::Helpers::Packages::Conan::ApiHelpers
       include API::Helpers::RelatedResourcesHelpers
       include Gitlab::Utils::StrongMemoize
 
@@ -17,7 +18,10 @@ module Packages
 
       def recipe_urls
         map_package_files do |package_file|
-          build_recipe_file_url(package_file) if package_file.conan_file_metadatum.recipe_file?
+          next unless package_file.conan_file_metadatum.recipe_file?
+
+          options = url_options(package_file)
+          recipe_file_url(options)
         end
       end
 
@@ -31,7 +35,12 @@ module Packages
         map_package_files do |package_file|
           next unless package_file.conan_file_metadatum.package_file? && matching_reference?(package_file)
 
-          build_package_file_url(package_file)
+          options = url_options(package_file).merge(
+            conan_package_reference: package_file.conan_file_metadatum.conan_package_reference,
+            package_revision: package_file.conan_file_metadatum.package_revision
+          )
+
+          package_file_url(options)
         end
       end
 
@@ -45,36 +54,21 @@ module Packages
 
       private
 
-      def build_recipe_file_url(package_file)
-        expose_url(
-          api_v4_packages_conan_v1_files_export_path(
-            package_name: @package.name,
-            package_version: @package.version,
-            package_username: @package.conan_metadatum.package_username,
-            package_channel: @package.conan_metadatum.package_channel,
-            recipe_revision: package_file.conan_file_metadatum.recipe_revision,
-            file_name: package_file.file_name
-          )
-        )
-      end
-
-      def build_package_file_url(package_file)
-        expose_url(
-          api_v4_packages_conan_v1_files_package_path(
+      def url_options(package_file)
+        {
           package_name: @package.name,
           package_version: @package.version,
           package_username: @package.conan_metadatum.package_username,
           package_channel: @package.conan_metadatum.package_channel,
-            recipe_revision: package_file.conan_file_metadatum.recipe_revision,
-            conan_package_reference: package_file.conan_file_metadatum.conan_package_reference,
-            package_revision: package_file.conan_file_metadatum.package_revision,
-            file_name: package_file.file_name
-          )
-        )
+          file_name: package_file.file_name,
+          recipe_revision: package_file.conan_file_metadatum.recipe_revision.presence || ::Packages::Conan::FileMetadatum::DEFAULT_RECIPE_REVISION
+        }
       end
 
       def map_package_files
         package_files.to_a.map do |package_file|
+          next unless package_file.conan_file_metadatum
+
           key = package_file.file_name
           value = yield(package_file)
           next unless key && value

changelogs/unreleased/11679-conan-project-level.yml

+---
+title: Allow Conan packages to be scoped to project-level
+merge_request: 39541
+author:
+type: added

doc/development/packages.md

@@ -67,7 +67,7 @@ The current state of existing package registries availability is:
 | Repository Type | Project Level | Group Level | Instance Level |
 |-----------------|---------------|-------------|----------------|
 | Maven           | Yes           | Yes         | Yes            |
-| Conan           | No - [open issue](https://gitlab.com/gitlab-org/gitlab/-/issues/11679) | No - [open issue](https://gitlab.com/gitlab-org/gitlab/-/issues/11679) | Yes |
+| Conan           | Yes           | No - [open issue](https://gitlab.com/gitlab-org/gitlab/-/issues/11679) | Yes |
 | NPM             | No - [open issue](https://gitlab.com/gitlab-org/gitlab/-/issues/36853) | Yes | No - [open issue](https://gitlab.com/gitlab-org/gitlab/-/issues/36853) |
 | NuGet           | Yes | No - [open issue](https://gitlab.com/gitlab-org/gitlab/-/issues/36423) | No |
 | PyPI            | Yes | No | No |
@@ -87,7 +87,7 @@ Composer package naming scope is Instance Level.
 To avoid name conflict for instance-level endpoints you will need to define a package naming convention
 that gives a way to identify the project that the package belongs to. This generally involves using the project
 ID or full project path in the package name. See
-[Conan's naming convention](../user/packages/conan_repository/index.md#package-recipe-naming-convention) as an example.
+[Conan's naming convention](../user/packages/conan_repository/index.md#package-recipe-naming-convention-for-instance-level-remote) as an example.
 
 For group and project-level endpoints, naming can be less constrained and it will be up to the group and project
 members to be certain that there is no conflict between two package names. However, the system should prevent

doc/user/packages/conan_repository/index.md

@@ -83,15 +83,13 @@ conan new Hello/0.1 -t
 Next, create a package for that recipe by running `conan create` providing the Conan user and channel:
 
 ```shell
-conan create . my-org+my-group+my-project/beta
+conan create . mycompany/beta
 ```
 
 NOTE: **Note:**
-Current [naming restrictions](#package-recipe-naming-convention) require you to name the `user` value as the `+` separated path of your project on GitLab.
+If you are using the [instance level remote](#instance-level-remote), a specific [naming convention](#package-recipe-naming-convention-for-instance-level-remote) must be followed.
 
-The example above would create a package belonging to this project: `https://gitlab.com/my-org/my-group/my-project` with a channel of `beta`.
-
-These two example commands generate a final package with the recipe `Hello/0.1@my-org+my-group+my-project/beta`.
+These two example commands generate a final package with the recipe `Hello/0.1@mycompany/beta`.
 
 For more advanced details on creating and managing your packages, refer to the [Conan docs](https://docs.conan.io/en/latest/creating_packages.html).
 
@@ -99,6 +97,38 @@ You are now ready to upload your package to the GitLab registry. To get started,
 
 ## Adding the GitLab Package Registry as a Conan remote
 
+You can add the GitLab Package Registry as a Conan remote at the project or instance level.
+
+### Project level remote
+
+> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/11679) in GitLab 13.4.
+
+The project level remote allows you to work with packages within a given project.
+The advantage of using the project level remote is there are no restrictions to your
+package name, however all GitLab Conan packages require a full recipe
+with the user and channel (`package_name/version@user/channel`).
+
+To add the remote:
+
+```shell
+conan remote add gitlab https://gitlab.example.com/api/v4/projects/<project_id>/packages/conan
+```
+
+Once the remote is set, you can use the remote when running Conan commands by adding `--remote=gitlab` to the end of your commands.
+
+For example:
+
+```shell
+conan search Hello* --all --remote=gitlab
+```
+
+### Instance level remote
+
+The instance level remote allows you to use a single remote to access packages accross your entire
+GitLab instance. However, when using this remote, there are certain
+[package naming restrictions](#package-recipe-naming-convention-for-instance-level-remote)
+that must be followed.
+
 Add a new remote to your Conan configuration:
 
 ```shell
@@ -113,6 +143,25 @@ For example:
 conan search 'Hello*' --remote=gitlab
 ```
 
+#### Package recipe naming convention for instance level remote
+
+The standard Conan recipe convention looks like `package_name/version@user/channel`,
+but if you're using the [instance level remote](#instance-level-remote), the recipe
+`user` must be the plus sign (`+`) separated project path.
+
+The following table shows some example recipes you can give your package based on
+the project name and path.
+
+| Project                            | Package                                         | Supported |
+| ---------------------------------- | ----------------------------------------------- | --------- |
+| `foo/bar`                          | `my-package/1.0.0@foo+bar/stable`               | Yes       |
+| `foo/bar-baz/buz`                  | `my-package/1.0.0@foo+bar-baz+buz/stable`       | Yes       |
+| `gitlab-org/gitlab-ce`             | `my-package/1.0.0@gitlab-org+gitlab-ce/stable`  | Yes       |
+| `gitlab-org/gitlab-ce`             | `my-package/1.0.0@foo/stable`                   | No        |
+
+NOTE: **Note:**
+[Project level remotes](#project-level-remote) allow for more flexible package names.
+
 ## Authenticating to the GitLab Conan Repository
 
 You need a personal access token or deploy token.
@@ -142,7 +191,7 @@ Alternatively, you could explicitly include your credentials in any given comman
 For example:
 
 ```shell
-CONAN_LOGIN_USERNAME=<gitlab_username or deploy_token_username> CONAN_PASSWORD=<personal_access_token or deploy_token> conan upload Hello/0.1@my-group+my-project/beta --all --remote=gitlab
+CONAN_LOGIN_USERNAME=<gitlab_username or deploy_token_username> CONAN_PASSWORD=<personal_access_token or deploy_token> conan upload Hello/0.1@mycompany/beta --all --remote=gitlab
 ```
 
 ### Setting a default remote to your project (optional)
@@ -150,7 +199,7 @@ CONAN_LOGIN_USERNAME=<gitlab_username or deploy_token_username> CONAN_PASSWORD=<
 If you'd like Conan to always use GitLab as the registry for your package, you can tell Conan to always reference the GitLab remote for a given package recipe:
 
 ```shell
-conan remote add_ref Hello/0.1@my-group+my-project/beta gitlab
+conan remote add_ref Hello/0.1@mycompany/beta gitlab
 ```
 
 NOTE: **Note:**
@@ -165,34 +214,19 @@ The rest of the example commands in this documentation assume that you've added
 
 ## Uploading a package
 
-First you need to [create your Conan package locally](https://docs.conan.io/en/latest/creating_packages/getting_started.html). In order to work with the GitLab Package Registry, a specific [naming convention](#package-recipe-naming-convention) must be followed.
+First you need to [create your Conan package locally](https://docs.conan.io/en/latest/creating_packages/getting_started.html).
+
+NOTE: **Note:**
+If you are using the [instance level remote](#instance-level-remote), a specific [naming convention](#package-recipe-naming-convention-for-instance-level-remote) must be followed.
 
 Ensure you have a project created on GitLab and that the personal access token you're using has the correct permissions for write access to the container registry by selecting the `api` [scope](../../../user/profile/personal_access_tokens.md#limiting-scopes-of-a-personal-access-token).
 
 You can upload your package to the GitLab Package Registry using the `conan upload` command:
 
 ```shell
-conan upload Hello/0.1@my-group+my-project/beta --all
+conan upload Hello/0.1@mycompany/beta --all
 ```
 
-### Package recipe naming convention
-
-Standard Conan recipe convention looks like `package_name/version@user/channel`.
-
-**The recipe user must be the `+` separated project path**. The package
-name may be anything, but it is preferred that the project name be used unless
-it's not possible due to a naming collision. For example:
-
-| Project                            | Package                                         | Supported |
-| ---------------------------------- | ----------------------------------------------- | --------- |
-| `foo/bar`                          | `my-package/1.0.0@foo+bar/stable`               | Yes       |
-| `foo/bar-baz/buz`                  | `my-package/1.0.0@foo+bar-baz+buz/stable`       | Yes       |
-| `gitlab-org/gitlab-ce`             | `my-package/1.0.0@gitlab-org+gitlab-ce/stable`  | Yes       |
-| `gitlab-org/gitlab-ce`             | `my-package/1.0.0@foo/stable`                   | No        |
-
-NOTE: **Note:**
-A future iteration will extend support to [project and group level](https://gitlab.com/gitlab-org/gitlab/-/issues/11679) remotes which allows for more flexible naming conventions.
-
 ## Installing a package
 
 Conan packages are commonly installed as dependencies using the `conanfile.txt` file.
@@ -204,7 +238,7 @@ Add the Conan recipe to the `[requires]` section of the file:
 
 ```ini
  [requires]
- Hello/0.1@my-group+my-project/beta
+ Hello/0.1@mycompany/beta
 
  [generators]
  cmake
@@ -253,7 +287,7 @@ To search using a partial name, use the wildcard symbol `*`, which should be pla
 ```shell
 conan search Hello --all --remote=gitlab
 conan search He* --all --remote=gitlab
-conan search Hello/0.1@my-group+my-project/beta --all --remote=gitlab
+conan search Hello/0.1@mycompany/beta --all --remote=gitlab
 ```
 
 The scope of your search includes all projects you have permission to access, this includes your private projects as well as all public projects.
@@ -263,7 +297,7 @@ The scope of your search includes all projects you have permission to access, th
 The `conan info` command returns information about a given package:
 
 ```shell
-conan info Hello/0.1@my-group+my-project/beta
+conan info Hello/0.1@mycompany/beta
 ```
 
 ## List of supported CLI commands

lib/api/api.rb

@@ -194,7 +194,8 @@ module API
       mount ::API::NugetPackages
       mount ::API::PypiPackages
       mount ::API::ComposerPackages
-      mount ::API::ConanPackages
+      mount ::API::ConanProjectPackages
+      mount ::API::ConanInstancePackages
       mount ::API::MavenPackages
       mount ::API::NpmPackages
       mount ::API::GenericPackages

lib/api/conan_instance_packages.rb

+# frozen_string_literal: true
+
+# Conan Instance-Level Package Manager Client API
+module API
+  class ConanInstancePackages < Grape::API::Instance
+    namespace 'packages/conan/v1' do
+      include ConanPackageEndpoints
+    end
+  end
+end

lib/api/conan_packages.rb → lib/api/conan_package_endpoints.rb

@@ -9,8 +9,8 @@
 #
 # Technical debt: https://gitlab.com/gitlab-org/gitlab/issues/35798
 module API
-  class ConanPackages < Grape::API::Instance
-    helpers ::API::Helpers::PackagesManagerClientsHelpers
+  module ConanPackageEndpoints
+    extend ActiveSupport::Concern
 
     PACKAGE_REQUIREMENTS = {
       package_name: API::NO_SLASH_URL_PART_REGEX,
@@ -28,6 +28,11 @@ module API
 
     CONAN_FILES = (Gitlab::Regex::Packages::CONAN_RECIPE_FILES + Gitlab::Regex::Packages::CONAN_PACKAGE_FILES).freeze
 
+    included do
+      helpers ::API::Helpers::PackagesManagerClientsHelpers
+      helpers ::API::Helpers::Packages::Conan::ApiHelpers
+      helpers ::API::Helpers::RelatedResourcesHelpers
+
       before do
         require_packages_enabled!
 
@@ -36,7 +41,6 @@ module API
         authenticate!
       end
 
-    namespace 'packages/conan/v1' do
       desc 'Ping the Conan API' do
         detail 'This feature was introduced in GitLab 12.2'
       end
@@ -242,7 +246,7 @@ module API
         delete do
           authorize!(:destroy_package, project)
 
-          package_event('delete_package')
+          package_event('delete_package', category: 'API::ConanPackages')
 
           package.destroy
         end
@@ -341,11 +345,5 @@ module API
         end
       end
     end
-
-    helpers do
-      include Gitlab::Utils::StrongMemoize
-      include ::API::Helpers::RelatedResourcesHelpers
-      include ::API::Helpers::Packages::Conan::ApiHelpers
-    end
   end
 end

lib/api/conan_project_packages.rb

+# frozen_string_literal: true
+
+# Conan Project-Level Package Manager Client API
+module API
+  class ConanProjectPackages < Grape::API::Instance
+    params do
+      requires :id, type: Integer, desc: 'The ID of a project', regexp: %r{\A[1-9]\d*\z}
+    end
+
+    resource :projects, requirements: API::NAMESPACE_OR_PROJECT_REQUIREMENTS do
+      namespace ':id/packages/conan/v1' do
+        include ConanPackageEndpoints
+      end
+    end
+  end
+end

lib/api/helpers/packages/conan/api_helpers.rb

@@ -5,6 +5,8 @@ module API
     module Packages
       module Conan
         module ApiHelpers
+          include Gitlab::Utils::StrongMemoize
+
           def present_download_urls(entity)
             authorize!(:read_package, project)
 
@@ -31,7 +33,7 @@ module API
           def recipe_upload_urls
             { upload_urls: Hash[
               file_names.select(&method(:recipe_file?)).map do |file_name|
-                [file_name, recipe_file_upload_url(file_name)]
+                [file_name, build_recipe_file_upload_url(file_name)]
               end
             ] }
           end
@@ -39,7 +41,7 @@ module API
           def package_upload_urls
             { upload_urls: Hash[
               file_names.select(&method(:package_file?)).map do |file_name|
-                [file_name, package_file_upload_url(file_name)]
+                [file_name, build_package_file_upload_url(file_name)]
               end
             ] }
           end
@@ -52,32 +54,58 @@ module API
             file_name.in?(::Packages::Conan::FileMetadatum::PACKAGE_FILES)
           end
 
-          def package_file_upload_url(file_name)
-            expose_url(
-              api_v4_packages_conan_v1_files_package_path(
+          def build_package_file_upload_url(file_name)
+            options = url_options(file_name).merge(
+              conan_package_reference: params[:conan_package_reference],
+              package_revision: ::Packages::Conan::FileMetadatum::DEFAULT_PACKAGE_REVISION
+            )
+
+            package_file_url(options)
+          end
+
+          def build_recipe_file_upload_url(file_name)
+            recipe_file_url(url_options(file_name))
+          end
+
+          def url_options(file_name)
+            {
               package_name: params[:package_name],
               package_version: params[:package_version],
               package_username: params[:package_username],
               package_channel: params[:package_channel],
-                recipe_revision: '0',
-                conan_package_reference: params[:conan_package_reference],
-                package_revision: '0',
-                file_name: file_name
+              file_name: file_name,
+              recipe_revision: ::Packages::Conan::FileMetadatum::DEFAULT_RECIPE_REVISION
+            }
+          end
+
+          def package_file_url(options)
+            case package_scope
+            when :project
+              expose_url(
+                api_v4_projects_packages_conan_v1_files_package_path(
+                  options.merge(id: project.id)
                 )
               )
+            when :instance
+              expose_url(
+                api_v4_packages_conan_v1_files_package_path(options)
+              )
+            end
           end
 
-          def recipe_file_upload_url(file_name)
+          def recipe_file_url(options)
+            case package_scope
+            when :project
               expose_url(
-              api_v4_packages_conan_v1_files_export_path(
-                package_name: params[:package_name],
-                package_version: params[:package_version],
-                package_username: params[:package_username],
-                package_channel: params[:package_channel],
-                recipe_revision: '0',
-                file_name: file_name
+                api_v4_projects_packages_conan_v1_files_export_path(
+                  options.merge(id: project.id)
                 )
               )
+            when :instance
+              expose_url(
+                api_v4_packages_conan_v1_files_export_path(options)
+              )
+            end
           end
 
           def recipe
@@ -86,8 +114,13 @@ module API
 
           def project
             strong_memoize(:project) do
+              case package_scope
+              when :project
+                find_project!(params[:id])
+              when :instance
                 full_path = ::Packages::Conan::Metadatum.full_path_from(package_username: params[:package_username])
-              Project.find_by_full_path(full_path)
+                find_project!(full_path)
+              end
             end
           end
 
@@ -97,6 +130,7 @@ module API
                 .conan
                 .with_name(params[:package_name])
                 .with_version(params[:package_version])
+                .with_conan_username(params[:package_username])
                 .with_conan_channel(params[:package_channel])
                 .order_created
                 .last
@@ -124,7 +158,7 @@ module API
                 conan_package_reference: params[:conan_package_reference]
               ).execute!
 
-            package_event('pull_package') if params[:file_name] == ::Packages::Conan::FileMetadatum::PACKAGE_BINARY
+            package_event('pull_package', category: 'API::ConanPackages') if params[:file_name] == ::Packages::Conan::FileMetadatum::PACKAGE_BINARY
 
             present_carrierwave_file!(package_file.file)
           end
@@ -135,7 +169,7 @@ module API
 
           def track_push_package_event
             if params[:file_name] == ::Packages::Conan::FileMetadatum::PACKAGE_BINARY && params[:file].size > 0 # rubocop: disable Style/ZeroLengthPredicate
-              package_event('push_package')
+              package_event('push_package', category: 'API::ConanPackages')
             end
           end
 
@@ -236,6 +270,10 @@ module API
 
             token
           end
+
+          def package_scope
+            params[:id].present? ? :project : :instance
+          end
         end
       end
     end

spec/presenters/packages/conan/package_presenter_spec.rb

@@ -7,15 +7,34 @@ RSpec.describe ::Packages::Conan::PackagePresenter do
   let_it_be(:package) { create(:conan_package) }
   let_it_be(:project) { package.project }
   let_it_be(:conan_package_reference) { '123456789'}
+  let(:params) { { package_scope: :instance } }
 
-  describe '#recipe_urls' do
-    subject { described_class.new(package, user, project).recipe_urls }
-
-    context 'no existing package' do
+  shared_examples 'no existing package' do
+    context 'when package does not exist' do
       let(:package) { nil }
 
       it { is_expected.to be_empty }
     end
+  end
+
+  shared_examples 'conan_file_metadatum is not found' do
+    context 'when no conan_file_metadatum exists' do
+      before do
+        package.package_files.each do |file|
+          file.conan_file_metadatum.delete
+          file.reload
+        end
+      end
+
+      it { is_expected.to be_empty }
+    end
+  end
+
+  describe '#recipe_urls' do
+    subject { described_class.new(package, user, project, params).recipe_urls }
+
+    it_behaves_like 'no existing package'
+    it_behaves_like 'conan_file_metadatum is not found'
 
     context 'existing package' do
       let(:expected_result) do
@@ -33,17 +52,28 @@ RSpec.describe ::Packages::Conan::PackagePresenter do
 
         it { is_expected.to eq(expected_result) }
       end
+
+      context 'with package_scope of project' do
+        # #recipe_file_url checks for params[:id]
+        let(:params) { { id: project.id } }
+
+        let(:expected_result) do
+          {
+            "conanfile.py" => "#{Settings.build_base_gitlab_url}/api/v4/projects/#{project.id}/packages/conan/v1/files/#{package.conan_recipe_path}/0/export/conanfile.py",
+            "conanmanifest.txt" => "#{Settings.build_base_gitlab_url}/api/v4/projects/#{project.id}/packages/conan/v1/files/#{package.conan_recipe_path}/0/export/conanmanifest.txt"
+          }
+        end
+
+        it { is_expected.to eq(expected_result) }
+      end
     end
   end
 
   describe '#recipe_snapshot' do
     subject { described_class.new(package, user, project).recipe_snapshot }
 
-    context 'no existing package' do
-      let(:package) { nil }
-
-      it { is_expected.to be_empty }
-    end
+    it_behaves_like 'no existing package'
+    it_behaves_like 'conan_file_metadatum is not found'
 
     context 'existing package' do
       let(:expected_result) do
@@ -60,17 +90,21 @@ RSpec.describe ::Packages::Conan::PackagePresenter do
   describe '#package_urls' do
     let(:reference) { conan_package_reference }
 
+    let(:params) do
+      {
+        conan_package_reference: reference,
+        package_scope: :instance
+      }
+    end
+
     subject do
       described_class.new(
-        package, user, project, conan_package_reference: reference
+        package, user, project, params
       ).package_urls
     end
 
-    context 'no existing package' do
-      let(:package) { nil }
-
-      it { is_expected.to be_empty }
-    end
+    it_behaves_like 'no existing package'
+    it_behaves_like 'conan_file_metadatum is not found'
 
     context 'existing package' do
       let(:expected_result) do
@@ -83,6 +117,26 @@ RSpec.describe ::Packages::Conan::PackagePresenter do
 
       it { is_expected.to eq(expected_result) }
 
+      context 'with package_scope of project' do
+        # #package_file_url checks for params[:id]
+        let(:params) do
+          {
+            conan_package_reference: reference,
+            id: project.id
+          }
+        end
+
+        let(:expected_result) do
+          {
+            "conaninfo.txt" => "#{Settings.build_base_gitlab_url}/api/v4/projects/#{project.id}/packages/conan/v1/files/#{package.conan_recipe_path}/0/package/#{conan_package_reference}/0/conaninfo.txt",
+            "conanmanifest.txt" => "#{Settings.build_base_gitlab_url}/api/v4/projects/#{project.id}/packages/conan/v1/files/#{package.conan_recipe_path}/0/package/#{conan_package_reference}/0/conanmanifest.txt",
+            "conan_package.tgz" => "#{Settings.build_base_gitlab_url}/api/v4/projects/#{project.id}/packages/conan/v1/files/#{package.conan_recipe_path}/0/package/#{conan_package_reference}/0/conan_package.tgz"
+          }
+        end
+
+        it { is_expected.to eq(expected_result) }
+      end
+
       context 'multiple packages with different references' do
         let(:info_file) { create(:conan_package_file, :conan_package_info, package: package) }
         let(:manifest_file) { create(:conan_package_file, :conan_package_manifest, package: package) }
@@ -132,11 +186,8 @@ RSpec.describe ::Packages::Conan::PackagePresenter do
       ).package_snapshot
     end
 
-    context 'no existing package' do
-      let(:package) { nil }
-
-      it { is_expected.to be_empty }
-    end
+    it_behaves_like 'no existing package'
+    it_behaves_like 'conan_file_metadatum is not found'
 
     context 'existing package' do
       let(:expected_result) do

spec/requests/api/conan_instance_packages_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe API::ConanInstancePackages do
+  include_context 'conan api setup'
+
+  describe 'GET /api/v4/packages/conan/v1/ping' do
+    let_it_be(:url) { '/packages/conan/v1/ping' }
+
+    it_behaves_like 'conan ping endpoint'
+  end
+
+  describe 'GET /api/v4/packages/conan/v1/conans/search' do
+    let_it_be(:url) { '/packages/conan/v1/conans/search' }
+
+    it_behaves_like 'conan search endpoint'
+  end
+
+  describe 'GET /api/v4/packages/conan/v1/users/authenticate' do
+    let_it_be(:url) { '/packages/conan/v1/users/authenticate' }
+
+    it_behaves_like 'conan authenticate endpoint'
+  end
+
+  describe 'GET /api/v4/packages/conan/v1/users/check_credentials' do
+    let_it_be(:url) { "/packages/conan/v1/users/check_credentials" }
+
+    it_behaves_like 'conan check_credentials endpoint'
+  end
+
+  context 'recipe endpoints' do
+    include_context 'conan recipe endpoints'
+
+    let(:project_id) { 9999 }
+    let(:url_prefix) { "#{Settings.gitlab.base_url}/api/v4" }
+
+    describe 'GET /api/v4/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel' do
+      let(:recipe_path) { package.conan_recipe_path }
+      let(:url) { "/packages/conan/v1/conans/#{recipe_path}" }
+
+      it_behaves_like 'recipe snapshot endpoint'
+    end
+
+    describe 'GET /api/v4/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel/packages/:conan_package_reference' do
+      let(:recipe_path) { package.conan_recipe_path }
+      let(:url) { "/packages/conan/v1/conans/#{recipe_path}/packages/#{conan_package_reference}" }
+
+      it_behaves_like 'package snapshot endpoint'
+    end
+
+    describe 'GET /api/v4/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel/digest' do
+      subject { get api("/packages/conan/v1/conans/#{recipe_path}/digest"), headers: headers }
+
+      it_behaves_like 'recipe download_urls endpoint'
+    end
+
+    describe 'GET /api/v4/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel/packages/:conan_package_reference/download_urls' do
+      subject { get api("/packages/conan/v1/conans/#{recipe_path}/packages/#{conan_package_reference}/download_urls"), headers: headers }
+
+      it_behaves_like 'package download_urls endpoint'
+    end
+
+    describe 'GET /api/v4/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel/download_urls' do
+      subject { get api("/packages/conan/v1/conans/#{recipe_path}/download_urls"), headers: headers }
+
+      it_behaves_like 'recipe download_urls endpoint'
+    end
+
+    describe 'GET /api/v4/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel/packages/:conan_package_reference/digest' do
+      subject { get api("/packages/conan/v1/conans/#{recipe_path}/packages/#{conan_package_reference}/digest"), headers: headers }
+
+      it_behaves_like 'package download_urls endpoint'
+    end
+
+    describe 'POST /api/v4/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel/upload_urls' do
+      subject { post api("/packages/conan/v1/conans/#{recipe_path}/upload_urls"), params: params.to_json, headers: headers }
+
+      it_behaves_like 'recipe upload_urls endpoint'
+    end
+
+    describe 'POST /api/v4/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel/packages/:conan_package_reference/upload_urls' do
+      subject { post api("/packages/conan/v1/conans/#{recipe_path}/packages/123456789/upload_urls"), params: params.to_json, headers: headers }
+
+      it_behaves_like 'package upload_urls endpoint'
+    end
+
+    describe 'DELETE /api/v4/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel' do
+      subject { delete api("/packages/conan/v1/conans/#{recipe_path}"), headers: headers}
+
+      it_behaves_like 'delete package endpoint'
+    end
+  end
+
+  context 'file download endpoints' do
+    include_context 'conan file download endpoints'
+
+    describe 'GET /api/v4/packages/conan/v1/files/:package_name/package_version/:package_username/:package_channel/
+:recipe_revision/export/:file_name' do
+      subject do
+        get api("/packages/conan/v1/files/#{recipe_path}/#{metadata.recipe_revision}/export/#{recipe_file.file_name}"),
+            headers: headers
+      end
+
+      it_behaves_like 'recipe file download endpoint'
+      it_behaves_like 'project not found by recipe'
+    end
+
+    describe 'GET /api/v4/packages/conan/v1/files/:package_name/package_version/:package_username/:package_channel/
+:recipe_revision/package/:conan_package_reference/:package_revision/:file_name' do
+      subject do
+        get api("/packages/conan/v1/files/#{recipe_path}/#{metadata.recipe_revision}/package/#{metadata.conan_package_reference}/#{metadata.package_revision}/#{package_file.file_name}"),
+            headers: headers
+      end
+
+      it_behaves_like 'package file download endpoint'
+      it_behaves_like 'project not found by recipe'
+    end
+  end
+
+  context 'file upload endpoints' do
+    include_context 'conan file upload endpoints'
+
+    describe 'PUT /api/v4/packages/conan/v1/files/:package_name/package_version/:package_username/:package_channel/:recipe_revision/export/:file_name/authorize' do
+      let(:file_name) { 'conanfile.py' }
+
+      subject { put api("/packages/conan/v1/files/#{recipe_path}/0/export/#{file_name}/authorize"), headers: headers_with_token }
+
+      it_behaves_like 'workhorse authorize endpoint'
+    end
+
+    describe 'PUT /api/v4/packages/conan/v1/files/:package_name/package_version/:package_username/:package_channel/:recipe_revision/export/:conan_package_reference/:package_revision/:file_name/authorize' do
+      let(:file_name) { 'conaninfo.txt' }
+
+      subject { put api("/packages/conan/v1/files/#{recipe_path}/0/package/123456789/0/#{file_name}/authorize"), headers: headers_with_token }
+
+      it_behaves_like 'workhorse authorize endpoint'
+    end
+
+    describe 'PUT /api/v4/packages/conan/v1/files/:package_name/package_version/:package_username/:package_channel/:recipe_revision/export/:file_name' do
+      let(:url) { "/api/v4/packages/conan/v1/files/#{recipe_path}/0/export/#{file_name}" }
+
+      it_behaves_like 'workhorse recipe file upload endpoint'
+    end
+
+    describe 'PUT /api/v4/packages/conan/v1/files/:package_name/package_version/:package_username/:package_channel/:recipe_revision/export/:conan_package_reference/:package_revision/:file_name' do
+      let(:url) { "/api/v4/packages/conan/v1/files/#{recipe_path}/0/package/123456789/0/#{file_name}" }
+
+      it_behaves_like 'workhorse package file upload endpoint'
+    end
+  end
+end

spec/requests/api/conan_project_packages_spec.rb

+# frozen_string_literal: true
+require 'spec_helper'
+
+RSpec.describe API::ConanProjectPackages do
+  include_context 'conan api setup'
+
+  let(:project_id) { project.id }
+
+  describe 'GET /api/v4/projects/:id/packages/conan/v1/ping' do
+    let(:url) { "/projects/#{project.id}/packages/conan/v1/ping" }
+
+    it_behaves_like 'conan ping endpoint'
+  end
+
+  describe 'GET /api/v4/projects/:id/packages/conan/v1/conans/search' do
+    let(:url) { "/projects/#{project.id}/packages/conan/v1/conans/search" }
+
+    it_behaves_like 'conan search endpoint'
+  end
+
+  describe 'GET /api/v4/projects/:id/packages/conan/v1/users/authenticate' do
+    let(:url) { "/projects/#{project.id}/packages/conan/v1/users/authenticate" }
+
+    it_behaves_like 'conan authenticate endpoint'
+  end
+
+  describe 'GET /api/v4/projects/:id/packages/conan/v1/users/check_credentials' do
+    let(:url) { "/projects/#{project.id}/packages/conan/v1/users/check_credentials" }
+
+    it_behaves_like 'conan check_credentials endpoint'
+  end
+
+  context 'recipe endpoints' do
+    include_context 'conan recipe endpoints'
+
+    let(:url_prefix) { "#{Settings.gitlab.base_url}/api/v4/projects/#{project_id}" }
+
+    describe 'GET /api/v4/projects/:id/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel' do
+      let(:recipe_path) { package.conan_recipe_path }
+      let(:url) { "/projects/#{project_id}/packages/conan/v1/conans/#{recipe_path}" }
+
+      it_behaves_like 'recipe snapshot endpoint'
+    end
+
+    describe 'GET /api/v4/projects/:id/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel/packages/:conan_package_reference' do
+      let(:recipe_path) { package.conan_recipe_path }
+      let(:url) { "/projects/#{project_id}/packages/conan/v1/conans/#{recipe_path}/packages/#{conan_package_reference}" }
+
+      it_behaves_like 'package snapshot endpoint'
+    end
+
+    describe 'GET /api/v4/projects/:id/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel/digest' do
+      subject { get api("/projects/#{project_id}/packages/conan/v1/conans/#{recipe_path}/digest"), headers: headers }
+
+      it_behaves_like 'recipe download_urls endpoint'
+    end
+
+    describe 'GET /api/v4/projects/:id/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel/packages/:conan_package_reference/download_urls' do
+      subject { get api("/projects/#{project_id}/packages/conan/v1/conans/#{recipe_path}/packages/#{conan_package_reference}/download_urls"), headers: headers }
+
+      it_behaves_like 'package download_urls endpoint'
+    end
+
+    describe 'GET /api/v4/projects/:id/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel/download_urls' do
+      subject { get api("/projects/#{project_id}/packages/conan/v1/conans/#{recipe_path}/download_urls"), headers: headers }
+
+      it_behaves_like 'recipe download_urls endpoint'
+    end
+
+    describe 'GET /api/v4/projects/:id/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel/packages/:conan_package_reference/digest' do
+      subject { get api("/projects/#{project_id}/packages/conan/v1/conans/#{recipe_path}/packages/#{conan_package_reference}/digest"), headers: headers }
+
+      it_behaves_like 'package download_urls endpoint'
+    end
+
+    describe 'POST /api/v4/projects/:id/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel/upload_urls' do
+      subject { post api("/projects/#{project_id}/packages/conan/v1/conans/#{recipe_path}/upload_urls"), params: params.to_json, headers: headers }
+
+      it_behaves_like 'recipe upload_urls endpoint'
+    end
+
+    describe 'POST /api/v4/projects/:id/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel/packages/:conan_package_reference/upload_urls' do
+      subject { post api("/projects/#{project_id}/packages/conan/v1/conans/#{recipe_path}/packages/123456789/upload_urls"), params: params.to_json, headers: headers }
+
+      it_behaves_like 'package upload_urls endpoint'
+    end
+
+    describe 'DELETE /api/v4/projects/:id/packages/conan/v1/conans/:package_name/package_version/:package_username/:package_channel' do
+      subject { delete api("/projects/#{project_id}/packages/conan/v1/conans/#{recipe_path}"), headers: headers}
+
+      it_behaves_like 'delete package endpoint'
+    end
+  end
+
+  context 'file download endpoints' do
+    include_context 'conan file download endpoints'
+
+    describe 'GET /api/v4/projects/:id/packages/conan/v1/files/:package_name/package_version/:package_username/:package_channel/
+:recipe_revision/export/:file_name' do
+      subject do
+        get api("/projects/#{project_id}/packages/conan/v1/files/#{recipe_path}/#{metadata.recipe_revision}/export/#{recipe_file.file_name}"),
+            headers: headers
+      end
+
+      it_behaves_like 'recipe file download endpoint'
+      it_behaves_like 'project not found by project id'
+    end
+
+    describe 'GET /api/v4/projects/:id/packages/conan/v1/files/:package_name/package_version/:package_username/:package_channel/
+:recipe_revision/package/:conan_package_reference/:package_revision/:file_name' do
+      subject do
+        get api("/projects/#{project_id}/packages/conan/v1/files/#{recipe_path}/#{metadata.recipe_revision}/package/#{metadata.conan_package_reference}/#{metadata.package_revision}/#{package_file.file_name}"),
+            headers: headers
+      end
+
+      it_behaves_like 'package file download endpoint'
+      it_behaves_like 'project not found by project id'
+    end
+  end
+
+  context 'file upload endpoints' do
+    include_context 'conan file upload endpoints'
+
+    describe 'PUT /api/v4/projects/:id/packages/conan/v1/files/:package_name/package_version/:package_username/:package_channel/:recipe_revision/export/:file_name/authorize' do
+      let(:file_name) { 'conanfile.py' }
+
+      subject { put api("/projects/#{project_id}/packages/conan/v1/files/#{recipe_path}/0/export/#{file_name}/authorize"), headers: headers_with_token }
+
+      it_behaves_like 'workhorse authorize endpoint'
+    end
+
+    describe 'PUT /api/v4/projects/:id/packages/conan/v1/files/:package_name/package_version/:package_username/:package_channel/:recipe_revision/export/:conan_package_reference/:package_revision/:file_name/authorize' do
+      let(:file_name) { 'conaninfo.txt' }
+
+      subject { put api("/projects/#{project_id}/packages/conan/v1/files/#{recipe_path}/0/package/123456789/0/#{file_name}/authorize"), headers: headers_with_token }
+
+      it_behaves_like 'workhorse authorize endpoint'
+    end
+
+    describe 'PUT /api/v4/projects/:id/packages/conan/v1/files/:package_name/package_version/:package_username/:package_channel/:recipe_revision/export/:file_name' do
+      let(:url) { "/api/v4/projects/#{project_id}/packages/conan/v1/files/#{recipe_path}/0/export/#{file_name}" }
+
+      it_behaves_like 'workhorse recipe file upload endpoint'
+    end
+
+    describe 'PUT /api/v4/projects/:id/packages/conan/v1/files/:package_name/package_version/:package_username/:package_channel/:recipe_revision/export/:conan_package_reference/:package_revision/:file_name' do
+      let(:url) { "/api/v4/projects/#{project_id}/packages/conan/v1/files/#{recipe_path}/0/package/123456789/0/#{file_name}" }
+
+      it_behaves_like 'workhorse package file upload endpoint'
+    end
+  end
+end

spec/support/shared_contexts/requests/api/conan_packages_shared_context.rb

+# frozen_string_literal: true
+
+RSpec.shared_context 'conan api setup' do
+  include PackagesManagerApiSpecHelpers
+  include HttpBasicAuthHelpers
+
+  let(:package) { create(:conan_package) }
+  let_it_be(:personal_access_token) { create(:personal_access_token) }
+  let_it_be(:user) { personal_access_token.user }
+  let_it_be(:base_secret) { SecureRandom.base64(64) }
+  let_it_be(:job) { create(:ci_build, :running, user: user) }
+  let_it_be(:job_token) { job.token }
+  let_it_be(:deploy_token) { create(:deploy_token, read_package_registry: true, write_package_registry: true) }
+
+  let(:project) { package.project }
+  let(:auth_token) { personal_access_token.token }
+  let(:project_deploy_token) { create(:project_deploy_token, deploy_token: deploy_token, project: project) }
+
+  let(:headers) do
+    { 'HTTP_AUTHORIZATION' => ActionController::HttpAuthentication::Basic.encode_credentials('foo', auth_token) }
+  end
+
+  let(:jwt_secret) do
+    OpenSSL::HMAC.hexdigest(
+      OpenSSL::Digest::SHA256.new,
+      base_secret,
+      Gitlab::ConanToken::HMAC_KEY
+    )
+  end
+
+  before do
+    project.add_developer(user)
+    allow(Settings).to receive(:attr_encrypted_db_key_base).and_return(base_secret)
+  end
+end
+
+RSpec.shared_context 'conan recipe endpoints' do
+  include PackagesManagerApiSpecHelpers
+  include HttpBasicAuthHelpers
+
+  let(:jwt) { build_jwt(personal_access_token) }
+  let(:headers) { build_token_auth_header(jwt.encoded) }
+  let(:conan_package_reference) { '123456789' }
+  let(:presenter) { double('::Packages::Conan::PackagePresenter') }
+
+  before do
+    allow(::Packages::Conan::PackagePresenter).to receive(:new)
+      .with(package, user, package.project, any_args)
+      .and_return(presenter)
+  end
+end
+
+RSpec.shared_context 'conan file download endpoints' do
+  include PackagesManagerApiSpecHelpers
+  include HttpBasicAuthHelpers
+
+  let(:jwt) { build_jwt(personal_access_token) }
+  let(:headers) { build_token_auth_header(jwt.encoded) }
+  let(:recipe_path) { package.conan_recipe_path }
+  let(:package_file) { package.package_files.find_by(file_name: 'conaninfo.txt') }
+  let(:recipe_file) { package.package_files.find_by(file_name: 'conanfile.py') }
+  let(:metadata) { package_file.conan_file_metadatum }
+end
+
+RSpec.shared_context 'conan file upload endpoints' do
+  include PackagesManagerApiSpecHelpers
+  include WorkhorseHelpers
+  include HttpBasicAuthHelpers
+
+  let(:jwt) { build_jwt(personal_access_token) }
+  let(:workhorse_token) { JWT.encode({ 'iss' => 'gitlab-workhorse' }, Gitlab::Workhorse.secret, 'HS256') }
+  let(:workhorse_header) { { 'GitLab-Workhorse' => '1.0', Gitlab::Workhorse::INTERNAL_API_REQUEST_HEADER => workhorse_token } }
+  let(:headers_with_token) { build_token_auth_header(jwt.encoded).merge(workhorse_header) }
+  let(:recipe_path) { "foo/bar/#{project.full_path.tr('/', '+')}/baz"}
+end