Added write_repository scope for personal access token

13 files changed, 152 insertions, 43 deletions

diff --git a/app/controllers/admin/impersonation_tokens_controller.rb b/app/controllers/admin/impersonation_tokens_controller.rb
index cfe29d734b7..c35619a944e 100644
--- a/app/controllers/admin/impersonation_tokens_controller.rb
+++ b/app/controllers/admin/impersonation_tokens_controller.rb
@@ -49,7 +49,7 @@ class Admin::ImpersonationTokensController < Admin::ApplicationController
 
   # rubocop: disable CodeReuse/ActiveRecord
   def set_index_vars
-    @scopes = Gitlab::Auth.available_scopes(current_user)
+    @scopes = Gitlab::Auth.available_scopes_for(current_user)
 
     @impersonation_token ||= finder.build
     @inactive_impersonation_tokens = finder(state: 'inactive').execute
diff --git a/app/controllers/jwt_controller.rb b/app/controllers/jwt_controller.rb
index f9008a5b67e..49d21456f8e 100644
--- a/app/controllers/jwt_controller.rb
+++ b/app/controllers/jwt_controller.rb
@@ -22,7 +22,7 @@ class JwtController < ApplicationController
   private
 
   def authenticate_project_or_user
-    @authentication_result = Gitlab::Auth::Result.new(nil, nil, :none, Gitlab::Auth.read_authentication_abilities)
+    @authentication_result = Gitlab::Auth::Result.new(nil, nil, :none, Gitlab::Auth.read_only_authentication_abilities)
 
     authenticate_with_http_basic do |login, password|
       @authentication_result = Gitlab::Auth.find_for_git_client(login, password, project: nil, ip: request.ip)
diff --git a/app/controllers/profiles/personal_access_tokens_controller.rb b/app/controllers/profiles/personal_access_tokens_controller.rb
index 213d900a563..f1c07cd9a1d 100644
--- a/app/controllers/profiles/personal_access_tokens_controller.rb
+++ b/app/controllers/profiles/personal_access_tokens_controller.rb
@@ -42,7 +42,7 @@ class Profiles::PersonalAccessTokensController < Profiles::ApplicationController
 
   # rubocop: disable CodeReuse/ActiveRecord
   def set_index_vars
-    @scopes = Gitlab::Auth.available_scopes(current_user)
+    @scopes = Gitlab::Auth.available_scopes_for(current_user)
 
     @inactive_personal_access_tokens = finder(state: 'inactive').execute
     @active_personal_access_tokens = finder(state: 'active').execute.order(:expires_at)
diff --git a/app/controllers/projects/git_http_client_controller.rb b/app/controllers/projects/git_http_client_controller.rb
index 85628dd32d8..7a80da53025 100644
--- a/app/controllers/projects/git_http_client_controller.rb
+++ b/app/controllers/projects/git_http_client_controller.rb
@@ -83,7 +83,7 @@ class Projects::GitHttpClientController < Projects::ApplicationController
 
   def render_missing_personal_access_token
     render plain: "HTTP Basic: Access denied\n" \
-                  "You must use a personal access token with 'api' scope for Git over HTTP.\n" \
+                  "You must use a personal access token with 'read_repository' or 'write_repository' scope for Git over HTTP.\n" \
                   "You can generate one at #{profile_personal_access_tokens_url}",
            status: :unauthorized
   end
diff --git a/app/models/personal_access_token.rb b/app/models/personal_access_token.rb
index d5770387872..f69f0e2dccb 100644
--- a/app/models/personal_access_token.rb
+++ b/app/models/personal_access_token.rb
@@ -56,7 +56,7 @@ class PersonalAccessToken < ApplicationRecord
   protected
 
   def validate_scopes
-    unless revoked || scopes.all? { |scope| Gitlab::Auth.available_scopes.include?(scope.to_sym) }
+    unless revoked || scopes.all? { |scope| Gitlab::Auth.all_available_scopes.include?(scope.to_sym) }
       errors.add :scopes, "can only contain available scopes"
     end
   end
diff --git a/changelogs/unreleased/26021-added-write_repository-scope-for-personal-access-token.yml b/changelogs/unreleased/26021-added-write_repository-scope-for-personal-access-token.yml
new file mode 100644
index 00000000000..da550d35f12
--- /dev/null
+++ b/changelogs/unreleased/26021-added-write_repository-scope-for-personal-access-token.yml
@@ -0,0 +1,5 @@
+---
+title: Added write_repository scope for personal access token
+merge_request: 26021
+author: Horatiu Eugen Vlad
+type: added
diff --git a/config/locales/doorkeeper.en.yml b/config/locales/doorkeeper.en.yml
index a2dff92908e..23bbc9f4035 100644
--- a/config/locales/doorkeeper.en.yml
+++ b/config/locales/doorkeeper.en.yml
@@ -60,7 +60,8 @@ en:
     scopes:
       api: Access the authenticated user's API
       read_user: Read the authenticated user's personal information
-      read_repository: Allows read-access to the repository
+      read_repository: Allows read-only access to the repository
+      write_repository: Allows read-write access to the repository
       read_registry: Grants permission to read container registry images
       openid: Authenticate using OpenID Connect
       sudo: Perform API actions as any user in the system
@@ -73,6 +74,8 @@ en:
         Grants read-only access to the authenticated user's profile through the /user API endpoint, which includes username, public email, and full name. Also grants access to read-only API endpoints under /users.
       read_repository:
         Grants read-only access to repositories on private projects using Git-over-HTTP (not using the API).
+      write_repository:
+        Grants read-write access to repositories on private projects using Git-over-HTTP (not using the API).
       read_registry:
         Grants read-only access to container registry images on private projects.
       openid:
diff --git a/doc/user/profile/personal_access_tokens.md b/doc/user/profile/personal_access_tokens.md
index 52b4a72e688..4085f3b678c 100644
--- a/doc/user/profile/personal_access_tokens.md
+++ b/doc/user/profile/personal_access_tokens.md
@@ -40,10 +40,11 @@ the following table.
 | Scope | Description |
 | ----- | ----------- |
 |`read_user` | Allows access to the read-only endpoints under `/users`. Essentially, any of the `GET` requests in the [Users API][users] are allowed ([introduced][ce-5951] in GitLab 8.15). |
-| `api` | Grants complete access to the API and Container Registry (read/write) ([introduced](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5951) in GitLab 8.15). Required for accessing Git repositories over HTTP when 2FA is enabled. |
+| `api` | Grants complete access to the API and Container Registry (read/write) ([introduced](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5951) in GitLab 8.15). |
 | `read_registry` | Allows to read (pull) [container registry] images if a project is private and authorization is required ([introduced](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/11845) in GitLab 9.3). |
 | `sudo` | Allows performing API actions as any user in the system (if the authenticated user is an admin) ([introduced][ce-14838] in GitLab 10.2). |
-| `read_repository` | Allows read-access (pull) to the repository through git clone. |
+| `read_repository` | Allows read-only access (pull) to the repository through git clone. |
+| `write_repository` | Allows read-write access (pull, push) to the repository through git clone. Required for accessing Git repositories over HTTP when 2FA is enabled. |
 
 [2fa]: ../account/two_factor_authentication.md
 [api]: ../../api/README.md
diff --git a/lib/gitlab/auth.rb b/lib/gitlab/auth.rb
index b2ef04d23d7..4317992d933 100644
--- a/lib/gitlab/auth.rb
+++ b/lib/gitlab/auth.rb
@@ -4,10 +4,17 @@ module Gitlab
   module Auth
     MissingPersonalAccessTokenError = Class.new(StandardError)
 
+    # Scopes used for GitLab API access
+    API_SCOPES = [:api, :read_user].freeze
+
+    # Scopes used for GitLab Repository access
+    REPOSITORY_SCOPES = [:read_repository, :write_repository].freeze
+
+    # Scopes used for GitLab Docker Registry access
     REGISTRY_SCOPES = [:read_registry].freeze
 
-    # Scopes used for GitLab API access
-    API_SCOPES = [:api, :read_user, :sudo, :read_repository].freeze
+    # Scopes used for GitLab as admin
+    ADMIN_SCOPES = [:sudo].freeze
 
     # Scopes used for OpenID Connect
     OPENID_SCOPES = [:openid].freeze
@@ -159,7 +166,7 @@ module Gitlab
 
         token = PersonalAccessTokensFinder.new(state: 'active').find_by_token(password)
 
-        if token && valid_scoped_token?(token, available_scopes)
+        if token && valid_scoped_token?(token, all_available_scopes)
           Gitlab::Auth::Result.new(token.user, nil, :personal_access_token, abilities_for_scopes(token.scopes))
         end
       end
@@ -176,7 +183,8 @@ module Gitlab
         abilities_by_scope = {
           api: full_authentication_abilities,
           read_registry: [:read_container_image],
-          read_repository: [:download_code]
+          read_repository: [:download_code],
+          write_repository: [:download_code, :push_code]
         }
 
         scopes.flat_map do |scope|
@@ -196,7 +204,7 @@ module Gitlab
 
         scopes = abilities_for_scopes(token.scopes)
 
-        if valid_scoped_token?(token, available_scopes)
+        if valid_scoped_token?(token, all_available_scopes)
           Gitlab::Auth::Result.new(token, token.project, :deploy_token, scopes)
         end
       end
@@ -222,7 +230,7 @@ module Gitlab
           elsif token_handler.deploy_key_pushable?(project)
             read_write_authentication_abilities
           else
-            read_authentication_abilities
+            read_only_authentication_abilities
           end
 
         if token_handler.token_valid?(encoded_token)
@@ -258,7 +266,7 @@ module Gitlab
         ]
       end
 
-      def read_authentication_abilities
+      def read_only_authentication_abilities
         [
           :read_project,
           :download_code,
@@ -267,7 +275,7 @@ module Gitlab
       end
 
       def read_write_authentication_abilities
-        read_authentication_abilities + [
+        read_only_authentication_abilities + [
           :push_code,
           :create_container_image
         ]
@@ -279,15 +287,19 @@ module Gitlab
         ]
       end
 
-      def available_scopes(current_user = nil)
-        scopes = API_SCOPES + registry_scopes
-        scopes.delete(:sudo) if current_user && !current_user.admin?
+      def available_scopes_for(current_user)
+        scopes = non_admin_available_scopes
+        scopes += ADMIN_SCOPES if current_user.admin?
         scopes
       end
 
+      def all_available_scopes
+        non_admin_available_scopes + ADMIN_SCOPES
+      end
+
       # Other available scopes
       def optional_scopes
-        available_scopes + OPENID_SCOPES + PROFILE_SCOPES - DEFAULT_SCOPES
+        all_available_scopes + OPENID_SCOPES + PROFILE_SCOPES - DEFAULT_SCOPES
       end
 
       def registry_scopes
@@ -298,6 +310,10 @@ module Gitlab
 
       private
 
+      def non_admin_available_scopes
+        API_SCOPES + REPOSITORY_SCOPES + registry_scopes
+      end
+
       def find_build_by_token(token)
         ::Ci::Build.running.find_by_token(token)
       end
diff --git a/spec/lib/gitlab/auth_spec.rb b/spec/lib/gitlab/auth_spec.rb
index a4a6338961e..3b5ca7c950c 100644
--- a/spec/lib/gitlab/auth_spec.rb
+++ b/spec/lib/gitlab/auth_spec.rb
@@ -5,7 +5,15 @@ describe Gitlab::Auth do
 
   describe 'constants' do
     it 'API_SCOPES contains all scopes for API access' do
-      expect(subject::API_SCOPES).to eq %i[api read_user sudo read_repository]
+      expect(subject::API_SCOPES).to eq %i[api read_user]
+    end
+
+    it 'ADMIN_SCOPES contains all scopes for ADMIN access' do
+      expect(subject::ADMIN_SCOPES).to eq %i[sudo]
+    end
+
+    it 'REPOSITORY_SCOPES contains all scopes for REPOSITORY access' do
+      expect(subject::REPOSITORY_SCOPES).to eq %i[read_repository write_repository]
     end
 
     it 'OPENID_SCOPES contains all scopes for OpenID Connect' do
@@ -19,7 +27,29 @@ describe Gitlab::Auth do
     it 'optional_scopes contains all non-default scopes' do
       stub_container_registry_config(enabled: true)
 
-      expect(subject.optional_scopes).to eq %i[read_user sudo read_repository read_registry openid profile email]
+      expect(subject.optional_scopes).to eq %i[read_user read_repository write_repository read_registry sudo openid profile email]
+    end
+  end
+
+  context 'available_scopes' do
+    it 'contains all non-default scopes' do
+      stub_container_registry_config(enabled: true)
+
+      expect(subject.all_available_scopes).to eq %i[api read_user read_repository write_repository read_registry sudo]
+    end
+
+    it 'contains for non-admin user all non-default scopes without ADMIN access' do
+      stub_container_registry_config(enabled: true)
+      user = create(:user, admin: false)
+
+      expect(subject.available_scopes_for(user)).to eq %i[api read_user read_repository write_repository read_registry]
+    end
+
+    it 'contains for admin user all non-default scopes with ADMIN access' do
+      stub_container_registry_config(enabled: true)
+      user = create(:user, admin: true)
+
+      expect(subject.available_scopes_for(user)).to eq %i[api read_user read_repository write_repository read_registry sudo]
     end
 
     context 'registry_scopes' do
@@ -122,7 +152,7 @@ describe Gitlab::Auth do
         token = Gitlab::LfsToken.new(key).token
 
         expect(gl_auth).to receive(:rate_limit!).with('ip', success: true, login: "lfs+deploy-key-#{key.id}")
-        expect(gl_auth.find_for_git_client("lfs+deploy-key-#{key.id}", token, project: nil, ip: 'ip')).to eq(Gitlab::Auth::Result.new(key, nil, :lfs_deploy_token, read_authentication_abilities))
+        expect(gl_auth.find_for_git_client("lfs+deploy-key-#{key.id}", token, project: nil, ip: 'ip')).to eq(Gitlab::Auth::Result.new(key, nil, :lfs_deploy_token, read_only_authentication_abilities))
       end
 
       it 'does not try password auth before oauth' do
@@ -150,7 +180,7 @@ describe Gitlab::Auth do
         token = Gitlab::LfsToken.new(key).token
 
         expect(gl_auth).to receive(:rate_limit!).with('ip', success: true, login: "lfs+deploy-key-#{key.id}")
-        expect(gl_auth.find_for_git_client("lfs+deploy-key-#{key.id}", token, project: project, ip: 'ip')).to eq(Gitlab::Auth::Result.new(key, nil, :lfs_deploy_token, read_authentication_abilities))
+        expect(gl_auth.find_for_git_client("lfs+deploy-key-#{key.id}", token, project: project, ip: 'ip')).to eq(Gitlab::Auth::Result.new(key, nil, :lfs_deploy_token, read_only_authentication_abilities))
       end
     end
 
@@ -182,8 +212,19 @@ describe Gitlab::Auth do
       it 'succeeds for personal access tokens with the `api` scope' do
         personal_access_token = create(:personal_access_token, scopes: ['api'])
 
-        expect(gl_auth).to receive(:rate_limit!).with('ip', success: true, login: '')
-        expect(gl_auth.find_for_git_client('', personal_access_token.token, project: nil, ip: 'ip')).to eq(Gitlab::Auth::Result.new(personal_access_token.user, nil, :personal_access_token, full_authentication_abilities))
+        expect_results_with_abilities(personal_access_token, full_authentication_abilities)
+      end
+
+      it 'succeeds for personal access tokens with the `read_repository` scope' do
+        personal_access_token = create(:personal_access_token, scopes: ['read_repository'])
+
+        expect_results_with_abilities(personal_access_token, [:download_code])
+      end
+
+      it 'succeeds for personal access tokens with the `write_repository` scope' do
+        personal_access_token = create(:personal_access_token, scopes: ['write_repository'])
+
+        expect_results_with_abilities(personal_access_token, [:download_code, :push_code])
       end
 
       context 'when registry is enabled' do
@@ -194,28 +235,24 @@ describe Gitlab::Auth do
         it 'succeeds for personal access tokens with the `read_registry` scope' do
           personal_access_token = create(:personal_access_token, scopes: ['read_registry'])
 
-          expect(gl_auth).to receive(:rate_limit!).with('ip', success: true, login: '')
-          expect(gl_auth.find_for_git_client('', personal_access_token.token, project: nil, ip: 'ip')).to eq(Gitlab::Auth::Result.new(personal_access_token.user, nil, :personal_access_token, [:read_container_image]))
+          expect_results_with_abilities(personal_access_token, [:read_container_image])
         end
       end
 
       it 'succeeds if it is an impersonation token' do
         impersonation_token = create(:personal_access_token, :impersonation, scopes: ['api'])
 
-        expect(gl_auth).to receive(:rate_limit!).with('ip', success: true, login: '')
-        expect(gl_auth.find_for_git_client('', impersonation_token.token, project: nil, ip: 'ip')).to eq(Gitlab::Auth::Result.new(impersonation_token.user, nil, :personal_access_token, full_authentication_abilities))
+        expect_results_with_abilities(impersonation_token, full_authentication_abilities)
       end
 
       it 'limits abilities based on scope' do
         personal_access_token = create(:personal_access_token, scopes: %w[read_user sudo])
 
-        expect(gl_auth).to receive(:rate_limit!).with('ip', success: true, login: '')
-        expect(gl_auth.find_for_git_client('', personal_access_token.token, project: nil, ip: 'ip')).to eq(Gitlab::Auth::Result.new(personal_access_token.user, nil, :personal_access_token, []))
+        expect_results_with_abilities(personal_access_token, [])
       end
 
       it 'fails if password is nil' do
-        expect(gl_auth).to receive(:rate_limit!).with('ip', success: false, login: '')
-        expect(gl_auth.find_for_git_client('', nil, project: nil, ip: 'ip')).to eq(Gitlab::Auth::Result.new(nil, nil))
+        expect_results_with_abilities(nil, nil, false)
       end
     end
 
@@ -479,7 +516,7 @@ describe Gitlab::Auth do
     ]
   end
 
-  def read_authentication_abilities
+  def read_only_authentication_abilities
     [
       :read_project,
       :download_code,
@@ -488,7 +525,7 @@ describe Gitlab::Auth do
   end
 
   def read_write_authentication_abilities
-    read_authentication_abilities + [
+    read_only_authentication_abilities + [
       :push_code,
       :create_container_image
     ]
@@ -499,4 +536,10 @@ describe Gitlab::Auth do
       :admin_container_image
     ]
   end
+
+  def expect_results_with_abilities(personal_access_token, abilities, success = true)
+    expect(gl_auth).to receive(:rate_limit!).with('ip', success: success, login: '')
+    expect(gl_auth.find_for_git_client('', personal_access_token&.token, project: nil, ip: 'ip'))
+      .to eq(Gitlab::Auth::Result.new(personal_access_token&.user, nil, personal_access_token.nil? ? nil : :personal_access_token, abilities))
+  end
 end
diff --git a/spec/requests/git_http_spec.rb b/spec/requests/git_http_spec.rb
index bfa178f5cae..5c9a5b73ee5 100644
--- a/spec/requests/git_http_spec.rb
+++ b/spec/requests/git_http_spec.rb
@@ -549,14 +549,14 @@ describe 'Git HTTP requests' do
                   it 'rejects pulls with personal access token error message' do
                     download(path, user: user.username, password: user.password) do |response|
                       expect(response).to have_gitlab_http_status(:unauthorized)
-                      expect(response.body).to include('You must use a personal access token with \'api\' scope for Git over HTTP')
+                      expect(response.body).to include('You must use a personal access token with \'read_repository\' or \'write_repository\' scope for Git over HTTP')
                     end
                   end
 
                   it 'rejects the push attempt with personal access token error message' do
                     upload(path, user: user.username, password: user.password) do |response|
                       expect(response).to have_gitlab_http_status(:unauthorized)
-                      expect(response.body).to include('You must use a personal access token with \'api\' scope for Git over HTTP')
+                      expect(response.body).to include('You must use a personal access token with \'read_repository\' or \'write_repository\' scope for Git over HTTP')
                     end
                   end
                 end
@@ -566,6 +566,47 @@ describe 'Git HTTP requests' do
 
                   it_behaves_like 'pulls are allowed'
                   it_behaves_like 'pushes are allowed'
+
+                  it 'rejects the push attempt for read_repository scope' do
+                    read_access_token = create(:personal_access_token, user: user, scopes: [:read_repository])
+
+                    upload(path, user: user.username, password: read_access_token.token) do |response|
+                      expect(response).to have_gitlab_http_status(:forbidden)
+                      expect(response.body).to include('You are not allowed to upload code')
+                    end
+                  end
+
+                  it 'accepts the push attempt for write_repository scope' do
+                    write_access_token = create(:personal_access_token, user: user, scopes: [:write_repository])
+
+                    upload(path, user: user.username, password: write_access_token.token) do |response|
+                      expect(response).to have_gitlab_http_status(:ok)
+                    end
+                  end
+
+                  it 'accepts the pull attempt for read_repository scope' do
+                    read_access_token = create(:personal_access_token, user: user, scopes: [:read_repository])
+
+                    download(path, user: user.username, password: read_access_token.token) do |response|
+                      expect(response).to have_gitlab_http_status(:ok)
+                    end
+                  end
+
+                  it 'accepts the pull attempt for api scope' do
+                    read_access_token = create(:personal_access_token, user: user, scopes: [:api])
+
+                    download(path, user: user.username, password: read_access_token.token) do |response|
+                      expect(response).to have_gitlab_http_status(:ok)
+                    end
+                  end
+
+                  it 'accepts the push attempt for api scope' do
+                    write_access_token = create(:personal_access_token, user: user, scopes: [:api])
+
+                    upload(path, user: user.username, password: write_access_token.token) do |response|
+                      expect(response).to have_gitlab_http_status(:ok)
+                    end
+                  end
                 end
               end
 
@@ -577,14 +618,14 @@ describe 'Git HTTP requests' do
                 it 'rejects pulls with personal access token error message' do
                   download(path, user: 'foo', password: 'bar') do |response|
                     expect(response).to have_gitlab_http_status(:unauthorized)
-                    expect(response.body).to include('You must use a personal access token with \'api\' scope for Git over HTTP')
+                    expect(response.body).to include('You must use a personal access token with \'read_repository\' or \'write_repository\' scope for Git over HTTP')
                   end
                 end
 
                 it 'rejects pushes with personal access token error message' do
                   upload(path, user: 'foo', password: 'bar') do |response|
                     expect(response).to have_gitlab_http_status(:unauthorized)
-                    expect(response.body).to include('You must use a personal access token with \'api\' scope for Git over HTTP')
+                    expect(response.body).to include('You must use a personal access token with \'read_repository\' or \'write_repository\' scope for Git over HTTP')
                   end
                 end
 
@@ -598,7 +639,7 @@ describe 'Git HTTP requests' do
                   it 'does not display the personal access token error message' do
                     upload(path, user: 'foo', password: 'bar') do |response|
                       expect(response).to have_gitlab_http_status(:unauthorized)
-                      expect(response.body).not_to include('You must use a personal access token with \'api\' scope for Git over HTTP')
+                      expect(response.body).not_to include('You must use a personal access token with \'read_repository\' or \'write_repository\' scope for Git over HTTP')
                     end
                   end
                 end
diff --git a/spec/requests/jwt_controller_spec.rb b/spec/requests/jwt_controller_spec.rb
index 4bb3b848e17..bba473f1c20 100644
--- a/spec/requests/jwt_controller_spec.rb
+++ b/spec/requests/jwt_controller_spec.rb
@@ -142,7 +142,7 @@ describe JwtController do
     end
 
     it 'allows read access' do
-      expect(service).to receive(:execute).with(authentication_abilities: Gitlab::Auth.read_authentication_abilities)
+      expect(service).to receive(:execute).with(authentication_abilities: Gitlab::Auth.read_only_authentication_abilities)
 
       get '/jwt/auth', params: parameters
     end
diff --git a/spec/requests/openid_connect_spec.rb b/spec/requests/openid_connect_spec.rb
index 2a455523e2c..86e41cbdf00 100644
--- a/spec/requests/openid_connect_spec.rb
+++ b/spec/requests/openid_connect_spec.rb
@@ -187,7 +187,7 @@ describe 'OpenID Connect requests' do
       expect(response).to have_gitlab_http_status(200)
       expect(json_response['issuer']).to eq('http://localhost')
       expect(json_response['jwks_uri']).to eq('http://www.example.com/oauth/discovery/keys')
-      expect(json_response['scopes_supported']).to eq(%w[api read_user sudo read_repository openid profile email])
+      expect(json_response['scopes_supported']).to eq(%w[api read_user read_repository write_repository sudo openid profile email])
     end
   end